Communication method and communication device

Abstract

The invention provides a communication method and a communication device, and the method comprises the steps: in a DC scene, if a terminal device has an overlap in the time of transmitting a first signal and a second signal; the first sending power when the terminal device sends the first signal on the first carrier and the second sending power when the terminal device sends the second signal on the second carrier are greater than the maximum sending power of the terminal device; according to the embodiment of the invention, the terminal equipment can allocate the maximum sending power of the terminal equipment based on any one of three modes of power spectrum density alignment, power equipartition and preferential power allocation for high and low frequency resource units. The third sending power when the terminal device sends the first signal on the first carrier and the fourth sending power when the terminal device sends the second signal on the second carrier are effectively controlled, and the situation that the third sending power and the fourth sending power are larger than the maximum sending power of the terminal device is avoided.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and more specifically, to a communication method and a communication device. Background Art

[0002] In the LTE system, a terminal device supports simultaneous access to two network devices. This access method is called Dual Connectivity (DC). One of the network devices is the primary network device, and the other network device is the secondary network device. Among them, one or more cells provided by the primary network device for the terminal device are divided into a Master Cell Group (MCG), and one or more cells provided by the secondary network device for the terminal device are called a Secondary Cell Group (SCG).

[0003] To improve the rate at which the terminal device sends uplink signals to the network device, a terminal device usually operating in the DC mode can send uplink signals to the network device on the carriers in the MCG and SCG simultaneously within the same time period. However, the total power of the terminal device sending uplink signals on all carriers is often limited. In the related art, when the total power of the terminal device sending uplink signals on all carriers is greater than the maximum transmission power of the terminal device, the terminal device can reduce the power of the uplink signal based on the type of the transmitted signal. However, this power control method is only applicable to the application scenario where the transmitted signal is a communication signal and is not applicable to the scenario where the transmitted signal is a sensing signal or a communication and sensing signal.

[0004] Therefore, how to effectively control the transmission power of the signal when the terminal device operating in the DC mode sends a sensing signal or a communication and sensing signal is an issue that needs attention currently. Summary of the Invention

[0005] This application provides a communication method and a communication device. The method redefines the power allocation scheme. Based on three methods of equalizing the power spectral density, equalizing the power, and preferentially allocating power to high and low frequency resource units, the terminal device can effectively control the transmission power of the signal when sending sensing signals on two different carriers simultaneously.

[0006] In a first aspect, a communication method is provided. The method provided in the first aspect can be executed by the terminal device or by a chip configured in the terminal device. This application does not make any limitations in this regard.

[0007] Specifically, 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; 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; where 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 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.

[0008] For the method provided in the first aspect, in a DC scenario, if there is an overlap in the time when the terminal device transmits 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, any one of the above three methods can be used to allocate the transmission power of the terminal device, so that the third transmission power when the terminal device transmits the first signal on the first carrier and the fourth transmission power when the terminal device transmits the second signal on the second carrier can be effectively controlled, avoiding the third transmission power and the fourth transmission power from being greater than the maximum transmission power of the terminal device.

[0009] It should be noted that the first time unit may also be a first time period. The first time unit may be a subframe unit, a time slot unit, a mini-slot unit, a symbol unit, etc. The first time period may also include multiple subframe units, multiple time slot units, multiple mini-slot units, and multiple symbol units, etc. The second time unit may also be a second time period. The second time unit may also be a subframe unit, a time slot unit, a mini-slot unit, a symbol unit, etc. The second time period may also include multiple subframe units, multiple time slot units, multiple mini-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. The embodiments of the present application do not make specific limitations on this.

[0010] It should also be noted that the power spectral density of the first signal in the first frequency-domain resource on the first carrier is greater than that 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 that in 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 preferentially allocates the 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 magnitude of the transmission power. After the first frequency-domain resource in the first carrier and the fourth frequency-domain resource in the second carrier are allocated, 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 magnitude of the remaining transmission power.

[0011] It should be understood that the first frequency-domain resource may include one resource unit, such as one subcarrier, or may include multiple resource units, such as multiple subcarriers, etc. Similarly, the second frequency-domain resource may also include one resource unit or multiple resource units, the third frequency-domain resource may also include one resource unit or multiple resource units, and the fourth frequency-domain resource may also include one resource unit or multiple resource units.

[0012] Exemplarily, in the embodiments of the present application, the first signal may be any one of a communication signal, a sensing signal, or a communication and sensing signal, and the second signal may also be any one of a communication signal, a sensing signal, or a communication and sensing signal. The first signal and the second signal may be the same or different.

[0013] Optionally, when the frequency-domain power spectral density of transmitting the first signal is equal to that 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.

[0014] Optionally, 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 that of the second signal.

[0015] In a possible implementation manner of the first aspect, before determining the third transmission power of the first signal in the first time unit and determining the fourth transmission power of the second signal in 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 transmit the second signal on the second carrier;

[0016] Determining the third transmission power and the fourth transmission 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 the first signal is equal to the frequency-domain power spectral density of 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 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 second frequency-domain resource on the fourth carrier.

[0017] In this implementation manner, after receiving the first indication information, the terminal device can determine the allocation method of the third transmission power and the fourth transmission power according to the first indication information of the network device, so that the sum of the third transmission power and the fourth transmission power is not greater than the maximum transmission power of the terminal device.

[0018] In a 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. This application does not make any limitation in this regard.

[0019] Specifically, the method includes: receiving a first signal transmitted by the terminal device with the third transmission power in a first time unit on a first carrier, and a second signal transmitted by the terminal device with the fourth transmission power in a second time unit on a second carrier; wherein, the frequency-domain power spectral density of the first signal is equal to the frequency-domain power spectral density of 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 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.

[0020] For the method provided in the first aspect, in the DC scenario, the network device can receive the first signal transmitted by the terminal device with the third transmission power and the second signal transmitted by the terminal device with the fourth transmission power, where 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 by the network device on the second carrier can be effectively controlled, and it is avoided that the third transmission power and the fourth transmission power are greater than the maximum transmission power of the terminal device.

[0021] It should be noted that the first time unit may also be a first time period. The first time unit may be a subframe unit, a time slot unit, a mini-slot unit, a symbol unit, etc. The first time period may also include multiple subframe units, multiple time slot units, multiple mini-slot units, multiple symbol units, etc. The second time unit may also be a second time period. The second time unit may also be a subframe unit, a time slot unit, a mini-slot unit, a symbol unit, etc. The second time period may also include multiple subframe units, multiple time slot units, multiple mini-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. The embodiments of the present application do not make specific limitations on this.

[0022] It should also be noted that 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. 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 preferentially allocates the 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 magnitude of the transmission power. After the first frequency domain resource in the first carrier and the fourth frequency domain resource in the second carrier are allocated, 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 magnitude of the remaining transmission power.

[0023] It should be understood that the first frequency domain resource may include one resource unit, such as one subcarrier, or may include multiple resource units, such as multiple subcarriers, etc. Similarly, the second frequency domain resource may also include one resource unit or multiple resource units. The third frequency domain resource may also include one resource unit or multiple resource units, and the fourth frequency domain resource may also include one resource unit or multiple resource units.

[0024] Exemplarily, in the embodiments of the present application, the first signal may be any one of a communication signal, a sensing signal, or a communication and sensing signal, and the second signal may also be any one of a communication signal, a sensing signal, or a communication and sensing signal. The first signal and the second signal may be the same or different.

[0025] Optionally, 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.

[0026] Optionally, 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 power spectral density of the first signal in the frequency domain is less than the power spectral density of the second signal in the frequency domain.

[0027] In a possible implementation of the second aspect, before the receiving terminal device sends a first signal using the third transmission power in a first time unit on a first carrier and a second signal using the fourth transmission power in 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 send 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 power spectral density of the first signal in the frequency domain and the power spectral density of the second signal in the frequency domain are equal, 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 a first frequency domain resource on the first carrier is greater than the power spectral density in a second frequency domain resource on the first carrier, and the power spectral density of the second signal in a third frequency domain resource on the second carrier is greater than the power spectral density in a second frequency domain resource on the fourth carrier.

[0028] In a third aspect, a communication system is provided, which includes a terminal device and a network device. The terminal device is configured to execute the method in the first aspect above or any possible implementation of the first aspect, and the network device is configured to execute the method in the second aspect above or any possible implementation of the second aspect.

[0029] In a fourth aspect, a communication device is provided, which includes units for executing each step in the first aspect above or any possible implementation of the first aspect, or each step in the second aspect above or any possible implementation of the second aspect.

[0030] 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, and the memory stores program instructions. When the program instructions stored in the memory are executed by the processor, the method in the first aspect above or any possible implementation of the first aspect, or the method in the second aspect above or any possible implementation of the second aspect is executed.

[0031] In a sixth aspect, a communication device is provided, which includes at least one processor and an interface circuit. The at least one processor is configured to execute the method in the first aspect above or any possible implementation of the first aspect, or the method in the second aspect above or any possible implementation of the second aspect.

[0032] In a seventh aspect, a computer program product is provided, which includes a computer program that, when executed by a processor, is used to execute the method in the above first aspect or any possible implementation manner of the first aspect, or the method in the above second aspect or any possible implementation manner of the second aspect.

[0033] In an eighth aspect, a computer-readable storage medium is provided, in which a computer program is stored, and when the computer program is executed, it is used to execute the method in the above first aspect or any possible implementation manner of the first aspect, or the method in the above second aspect or any possible implementation manner of the second aspect.

[0034] In a 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 installed with the chip executes the method for executing the method in the above first aspect or any possible implementation manner of the first aspect, or the method in the above second aspect or any possible implementation manner of the second aspect. Description of the Drawings

[0035] Figure 1 A schematic diagram of a scenario for determining signal power according to signal priority in the related art is shown.

[0036] Figure 2 A schematic diagram of a scenario for an applicable communication method provided by an embodiment of the present application is shown.

[0037] Figure 3 Schematic diagrams of six sub-scenarios based on a sensing scenario are shown.

[0038] Figure 4 A schematic structural diagram of a network device 20 and a terminal device 30 provided by an embodiment of the present application is shown.

[0039] Figure 5 A schematic interaction diagram of a communication method 500 provided by an embodiment of the present application is shown.

[0040] Figure 6 A schematic diagram of an example power allocation method provided by an embodiment of the present application is shown.

[0041] Figure 7 A schematic diagram of another example power allocation method provided by an embodiment of the present application is shown.

[0042] Figure 8 A schematic diagram of yet another example power allocation method provided by an embodiment of the present application is shown.

[0043] Figure 9 A schematic block diagram of a communication device 900 provided by an embodiment of the present application is shown.

[0044] Figure 10 A schematic block diagram of another example of a communication device 1000 provided by an embodiment of the present application is shown.

[0045] Figure 11 A schematic block diagram of a communication device 1100 according to an embodiment of the present application is shown.

[0046] Figure 12 A schematic block diagram of another example of a communication device 1200 provided by an embodiment of the present application is shown.

[0047] Figure 13 A schematic structural diagram of a terminal device 1300 provided by the present application is shown.

[0048] Figure 14 A schematic structural diagram of a network device 1400 provided by an embodiment of the present application is shown.

[0049] Figure 15 A schematic diagram of a chip system provided by an embodiment of the present application is shown. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application.

[0051] The technical solution of the embodiment 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 5th Generation (5G) system or New Radio (NR), etc.

[0052] The terminal device in the embodiment of the present application may refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile terminal, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. 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 function, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted 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. The embodiment of the present application does not limit this.

[0053] The network device in the embodiments of the present application may be a device for communicating with a terminal device. The network device may be a base transceiver station (BTS) in a global system for mobile communications (GSM) system or a code division multiple access (CDMA) system, or a NodeB (NB) in a wideband code division multiple access (WCDMA) system, or an evolved NodeB (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, etc. The embodiments of the present application do not limit this.

[0054] In the embodiments of the present application, the terminal device or the 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 a memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement service processing through processes. For example, the Linux operating system, the Unix operating system, the Android operating system, the iOS operating system, or the Windows operating system, etc. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. Moreover, the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application. As long as it can communicate according to the method provided by the embodiments of the present application by running a program recording the code of the method provided by the embodiments of the present application. For example, the execution subject of the method provided by the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.

[0055] Additionally, various aspects or features of the present application can be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media can include, but are not limited to: magnetic storage devices (such as hard disks, floppy disks, or magnetic tapes, etc.), optical discs (such as compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable media" can include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0056] In the process of the evolution of the fifth-generation mobile communication system towards 5G enhanced technology, communication-sensing integration is considered one of the key technologies that can expand the service capabilities of mobile communication networks. The core idea of this technology is to add sensing capabilities to the mobile communication network and build the capabilities of detecting, tracking, and imaging targets, so that the two capabilities of communication and sensing are integrated into one network, achieving harmonious coexistence and even mutual benefit.

[0057] There are certain differences between the technical principles of sensing and communication. In communication, the sending end modulates information onto radio waves and sends it to the receiving end, and the receiving end demodulates the signal carried on the radio waves to obtain information. For sensing, the sending end needs to send radio waves in a specific direction. When the radio waves irradiate the target surface, reflected radio waves will be formed, and thus the receiving end obtains information such as the position, speed, and type of the target by receiving and processing the reflected radio waves.

[0058] Sensing is generally divided into two modes: single-site sensing and dual-site sensing. Among them, in single-site sensing, the sending end and the receiving end of the sensing signal are the same device. From the perspective of the sensing signal process, this sensing site needs to both send the sensing signal and receive the signal reflected from the target surface. Therefore, the single-site sensing mode is also called the self-transmitting and self-receiving mode. For dual-site sensing, the sending end and the receiving end of the sensing signal are two different devices. From the perspective of the sensing signal process, after sensing site A sends the sensing signal, the signal reflected from the target surface is received by sensing site B. Therefore, the dual-site sensing mode is also called the A-transmitting and B-receiving mode.

[0059] In a wireless communication system, communication can be classified into different types according to the types of the sending node and the receiving node. Generally, the transmission of information from a network device to a terminal device is called downlink communication, and the transmission of information from a terminal device to a network device is called uplink communication. In a Long Term Evolution (LTE) / Long Term Evolution Advanced (LTE-A) communication system and a New Radio Access Technology (NR) system, it can be mainly classified into a Frequency Division Duplex (FDD) mode and a Time Division Duplex (TDD) mode according to the duplex mode. For a wireless communication system operating in the TDD mode, the downlink carrier and the uplink carrier of the system are carriers with the same carrier frequency. The multiple access method usually adopts an Orthogonal Frequency Division Multiple Access (OFDMA) method. The main feature of the Orthogonal Frequency Division Multiple Access method is that the transmission resources are divided into mutually orthogonal time-frequency resource units (Resource Elements, REs), and the signals sent by the sending end are all carried on the REs and transmitted to the receiving end. Since different REs are mutually orthogonal, the receiving end can separately receive the signals sent on each RE.

[0060] In the LTE system, the terminal device supports simultaneous access to two network devices. This access mode is called Dual Connectivity (DC). One of the network devices is the primary network device, and the other is the secondary network device. Among them, one or more cells provided by the primary network device for the terminal device are divided into the Master Cell Group (MCG), while one or more cells provided by the secondary network device for the terminal device are called the Secondary Cell Group (SCG). In the development and evolution process of the wireless communication system, operators will deploy both the 5G NR system and the LTE system simultaneously. The terminal device also supports simultaneous access to the LTE network device and the NR network device. Since LTE is also known as Evolved Universal Terrestrial Radio Access (E-UTRA), this access mode is called E-UTRA-NR Dual Connectivity (EN-DC). In the 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, in the future, it can also support NR-E-UTRA Dual Connectivity (NE-DC), that is, the NR network device is the primary network device, and the LTE network device is the secondary network device. Since the terminals in EN-DC and NE-DC will access network devices of two different radio access technologies, these DC modes can also be collectively referred to as Multi-RAT Dual Connectivity (MR-DC). In addition, for terminal devices that only support NR, they can also simultaneously access two different NR network devices. This type of connection mode is called NR-NR DC.

[0061] To improve the rate at which the terminal device sends uplink signals to the network device, a terminal device usually operating in the DC mode can simultaneously send uplink signals to the network device on the carriers in the MCG and SCG within the same time period. However, the total power of the terminal device sending uplink signals on all carriers is often limited, for example, the maximum cannot exceed 23 dBm. Therefore, if the total power of the terminal device sending uplink signals on the carriers in the MCG and SCG exceeds the maximum transmission power, the terminal device needs to actively reduce the transmission power on one or more carriers.

[0062] In the related art, the priorities of different signals and channels are predefined in the protocol. The terminal device can determine the priority of a signal according to the type of the uplink signal transmitted on the carriers of the MCG and the SCG in the same time period, and reduce the power of the signal with a lower priority, so as to ensure the power of the signal with a higher priority. Alternatively, when the types of the uplink signals transmitted on the carriers of the MCG and the SCG by the terminal device in the same time period are the same, the priority of the signal on the MCG can be predefined to be higher than the priority of the signal on the SCG. That is, when the types of the uplink signals transmitted on the carriers of the MCG and the SCG by the terminal device in the same time period are the same, the terminal device reduces the power of the uplink signal transmitted on the carrier of the SCG.

[0063] Exemplarily, the priorities of the signals decrease in the following order: the physical uplink control channel (PUCCH) carrying the acknowledgement character ACK and the negative acknowledgement character NACK; the scheduling request (SR); the physical uplink shared channel (PUSCH) carrying ACK and NACK; the PUCCH carrying channel state information (CSI); the PUSCH carrying CSI; the PUSCH not carrying ACK, NACK or CSI; the sounding reference signal (SRS).

[0064] For example, when the signal transmitted on the carrier in the MCG is the PUCCH carrying ACK, NACK and SR, and the signal transmitted on the carrier in the SCG is the PUSCH carrying ACK and NACK, the priority of the signal transmitted on the carrier in the MCG is higher than the priority of the signal transmitted on the carrier in the SCG. Then, in order to ensure that the total power of the uplink signals transmitted to the network device on the carriers in the MCG and the SCG at the same time does not exceed the maximum power of the terminal device, the terminal device can actively reduce the power of the signal transmitted on the carrier in the SCG. Alternatively, when the signal transmitted on the carrier in the MCG is the PUSCH carrying ACK and NACK, and the signal transmitted on the carrier in the SCG is the PUCCH carrying ACK, NACK and SR, the priority of the signal transmitted on the carrier in the SCG is higher than the priority of the signal transmitted on the carrier in the MCG. Then, in order to ensure that the total power of the uplink signals transmitted to the network device on the carriers in the MCG and the SCG at the same time does not exceed the maximum power of the terminal device, the terminal device can actively reduce the power of the signal transmitted on the carrier in the MCG.

[0065] For another example, when the signal transmitted on the carrier in the MCG is a PUCCH carrying ACK, NACK, or SR, and the signal transmitted on the carrier in the SCG is also a PUCCH carrying ACK, NACK, or SR, the terminal device reduces the power of the uplink signal transmitted on the carrier in the SCG.

[0066] In this related art, 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 thus reducing the signal power transmitted on the carrier with a lower priority does not take into account the requirements of the integrated sensing scenario. In the uplink multi-carrier integrated communication and sensing scenario, when the terminal device simultaneously transmits sensing signals on two different carriers, the existing priority and communication methods cannot be applied.

[0067] Exemplarily, Figure 1 FIG. shows a schematic diagram of a scenario for determining signal power according to signal priority in the related art. As Figure 1 shown, the terminal device 110 communicates with the network device 120 and the network device 130 respectively. Assume that the network device 120 serves as the primary base station to provide services for the terminal device 110. Then, one or more cells served by the network device 120 for the terminal device 110 are the MCG. The network device 130 serves as the secondary base station to provide services for the terminal device 110. Then, one or more cells served by the network device 130 for the terminal device 110 are the SCG. To increase the power of the uplink signal transmitted by the terminal device 110 to the network device, the terminal device 110 can simultaneously transmit a first uplink signal to the network device 120 on the first carrier in the MCG and a second uplink signal to the network device 130 on the second carrier in the SCG within the same time period. However, the total power of the uplink signals transmitted by the terminal device 110 on all carriers is limited. If the total power of the first uplink signal and the second uplink signal transmitted by the terminal device 110 on the carriers in the MCG and the SCG exceeds the maximum transmission power, the terminal device needs to actively reduce the transmission power on one or more carriers.

[0068] In a possible scenario, both the network device 120 and the network device are network devices supporting NR, or both the network device 120 and the network device 130 are network devices supporting LET.

[0069] In another possible scenario, network device 120 and network device 130 are network devices belonging to two different radio access technologies. For example, network device 120 can be an NR network device, and network device 130 can be an LTE network device. The terminal device 110 simultaneously accesses the NR network device and the LTE network device in a dual-connection (DC) manner. 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, it is also possible to access the NR and LTE network devices in a Carrier Aggregation (CA) manner.

[0070] In Figure 1 the example of, 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 to reduce the transmission power of the first uplink signal or reduce the transmission power of the second transmission signal according to the types of the first uplink signal and 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.

[0071] However, the above related technologies cannot support the problem of uplink power control in the integrated communication and sensing scenario. Therefore, how to control the transmission power of multiple signals sent by the terminal device when the terminal device simultaneously sends sensing signals on two different carriers in the uplink multi-carrier integrated communication and sensing scenario is a problem that needs to be solved currently.

[0072] In view of this, the present application provides a communication method, which includes: the terminal device makes the multi-carrier joint sensing performance optimal without exceeding the maximum transmission power based on three methods: equalizing power according to the maximum transmission power, equalizing the power spectral density, and preferentially allocating power to high and low frequency resource units.

[0073] Before introducing the communication method provided by the embodiments of the present application below, first, the application scenarios applicable to the embodiments of the present application are described.

[0074] The application scenario of the present application is an integrated communication and sensing scenario. Figure 2 shows a schematic diagram of a scenario applicable to the communication method provided by the embodiments of the present application. As Figure 2 shown, while the network devices and each terminal device in the communication network are communicating, they can also sense objects that do not have communication functions. The sensed targets are not limited to vehicles, low-altitude drones, pedestrians, but also include other moving or stationary objects.

[0075] It should be understood that integrated sensing and communication (ISAC) refers to jointly designing a system to support both communication and sensing functions simultaneously. Compared with separate communication and sensing systems, ISAC has advantages in terms of volume, weight, power consumption, cost, efficiency, etc.

[0076] It should also be understood that communication is the transmission of information between two or more points, and sensing is the detection of physical environment parameters, such as speed measurement, target positioning, etc. In other words, integrated communication and sensing means integrating the two functions of communication and sensing, enabling future communication systems to have both communication and sensing functions. While transmitting information in wireless communication, the characteristics of the channel are actively recognized and analyzed to sense the physical characteristics of the surrounding environment, thus enhancing the communication and sensing functions mutually.

[0077] In an ISAC network evolved from an existing cellular communication system, a base station can request multiple terminal devices to measure a passive target object. The passive target object described in this application can refer to an object that cannot receive and send signals. Exemplarily, the target object can be Figure 2 the shown vehicle, low-altitude drone, pedestrian, or stationary objects such as buildings.

[0078] Figure 3 shows a schematic diagram of 6 sub-scenarios based on the sensing scenario. As Figure 3 shown in figure (a) therein, the network device acts as the sender and receiver of the sensing reference signal. It not only sends the sensing signal to measure the sensing parameters of the target object (such as a vehicle) but also receives the signal reflected from the target object surface. As Figure 3 shown in figure (b) therein, the terminal device acts as the sender and receiver of the sensing signal. It not only sends the sensing signal to measure the sensing parameters of the target object (such as a vehicle) but also receives the signal reflected from the target surface. As Figure 3 shown in figure (c) therein, network device A acts as the sender of the sensing signal, and network device B acts as the receiver of the sensing signal. Network device A sends the sensing signal to measure the sensing parameters of the target object (such as a vehicle), and network device B receives the signal on the target object surface; as Figure 3 shown in figure (d) therein, terminal device A acts as the sender of the sensing signal, and terminal device B acts as the receiver of the sensing signal. Terminal device A sends the sensing signal to measure the sensing parameters of the target object (such as a vehicle), and terminal device B receives the signal on the target object surface; as Figure 3As shown in Figure (e), the network device serves as the sender of the sensing signal, and the terminal device serves as the receiver of the sensing signal. The network device sends the sensing signal to measure the sensing parameters of the target object (such as a vehicle), and the terminal device receives the signal on the surface of the target object. As Figure 3 As shown in Figure (f), the terminal device serves as the sender of the sensing signal, and the network device serves as the receiver of the sensing signal. The terminal device sends the sensing signal to measure the sensing parameters of the target object (such as a vehicle), and the network device receives the signal on the surface of the target object.

[0079] The scenarios applicable to the embodiments of this application are mainly the scenarios where the terminal device sends the sensing signal, that is Figure 3 as shown in Figure (b) Figure 3 as shown in Figure (d) Figure 3 and as shown in Figure (f).

[0080] It should be noted that the terminal device in the above application scenarios is used to send an uplink signal to the network device or receive a downlink signal from the network device; it can be a fixed device, a mobile device, a handheld device (such as a mobile phone), a wearable device, a vehicle-mounted device, or a wireless device (such as a communication module, a modem, or a chip system, etc.) built into the above devices. The terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communications (M2M / MTC) communication, 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. Exemplarily, the terminal device can 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 city, or a communication device on a drone, etc. The terminal device is sometimes referred to as a user equipment (UE), a user terminal, a user device, a user unit, a user station, a terminal, an access terminal, an access station, a UE station, a remote station, a mobile device, or a wireless communication device, etc.

[0081] It should also be noted that the network device in the above application scenario: is used to receive an uplink signal from a terminal device or send a downlink signal to a terminal device; it can be a network device of LTE and / or NR, and can be a base station (NodeB), an evolved base station (evolved NodeB, eNodeB), a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system, a transmission reception point (TRP), a base station evolved by 3GPP in the future, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, etc.

[0082] In some embodiments, the network device 20 and the terminal device 30 may also be referred to as communication devices, which may be a general-purpose device or a dedicated device, and the embodiments of the present application do not make specific limitations thereto.

[0083] As Figure 4 shown, it is a schematic structural diagram of the network device 20 and the terminal device 30 provided by the embodiments of the present application.

[0084] Among them, the terminal device 30 includes at least one processor ( Figure 4 exemplarily taking including one processor 301 as an example for illustration) and at least one transceiver ( Figure 4 exemplarily taking including one transceiver 303 as an example for illustration). Further, the terminal device 30 may further include at least one memory ( Figure 4 exemplarily taking including one memory 302 as an example for illustration), at least one output device ( Figure 4 exemplarily taking including one output device 304 as an example for illustration) and at least one input device ( Figure 4 exemplarily taking including one input device 305 as an example for illustration).

[0085] The processor 301, the memory 302 and the transceiver 303 are connected by a communication line. The communication line may include a path for transmitting information between the above components.

[0086] 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 solution of this application. In a specific implementation, as an embodiment, the processor 301 may also include multiple CPUs, and the processor 301 may be a single-CPU processor or a 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).

[0087] The memory 302 may be a device with 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. It may also be 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.), magnetic disk storage media, or other magnetic storage devices, or any other medium that can be used to carry or store the 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 through a communication line. The memory 302 may also be integrated with the processor 301.

[0088] Among them, the memory 302 is used to store the computer execution instructions for executing the solution of this application, and is controlled by the processor 301 for execution. Specifically, the processor 301 is used to execute the computer execution instructions stored in the memory 302, so as to implement the method described in the embodiments of this application.

[0089] Alternatively, in this application, it may also be that the processor 301 executes the functions related to processing in the signal sending and receiving methods provided in this application, and the transceiver 303 is responsible for communicating with other devices or communication networks. The embodiments of this application do not make specific limitations on this.

[0090] The computer execution instructions involved in this application may also be referred to as application program code or computer program code. The embodiments of this application do not make specific limitations on this.

[0091] The transceiver 303 can use any device of the transceiver type for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), or wireless local area networks (WLAN), etc. The transceiver 303 includes a transmitter (Tx) and a receiver (Rx).

[0092] The output device 304 communicates with the processor 301 and can display information in various ways. For example, the 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, etc.

[0093] 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, a keyboard, a touch screen device, or a sensing device, etc.

[0094] The network device 20 includes at least one processor ( Figure 4 exemplarily described by taking one processor 201 as an example) and at least one transceiver ( Figure 4 exemplarily described by taking one transceiver 203 as an example). Further, the network device 20 may also include at least one memory ( Figure 4 exemplarily described by taking one memory 202 as an example) and at least one network interface ( Figure 4 exemplarily described by taking one network interface 204 as an example). Among them, the processor 201, the memory 202, the transceiver 203, and the network interface 204 are connected by communication lines. The network interface 204 is used to connect to the core network device through a link, or to connect to the network interface of other network devices through a wired or wireless link ( Figure 4 not shown in the figure), and the embodiments of the present application do not make specific limitations on this. In addition, the relevant descriptions of the processor 201, the memory 202, and the transceiver 203 can refer to the descriptions of the processor 301, the memory 302, and the transceiver 303 in the terminal device 30, and will not be elaborated here.

[0095] It can be understood that Figure 4The structures shown do not constitute specific limitations on the terminal device 30 and the network device 20. For example, in some other embodiments of the present application, the terminal device 30 and the network device 20 may include more or fewer components than those shown in the figure, or combine certain components, or split certain components, or have different component arrangements. The components shown in the figure can be implemented in hardware, software, or a combination of software and hardware.

[0096] The following Figure 5 will describe in detail the communication method provided by the present application. Figure 5 FIG. shows a schematic interaction diagram of a communication method 500 according to an embodiment of the present application. The method 500 can be applied to the above scenario, and of course, it can also be applied to other communication scenarios. The embodiments of the present application are not limited thereto.

[0097] It should be understood that in the embodiments of the present application, the terminal device and the network device are taken as the execution entities for each step in the method 500 as an example to describe the method 500. By way of example and not limitation, the execution entities for each step in the method 500 can also be a chip applied to the terminal device and a chip applied to the network device.

[0098] As Figure 5 shown, the method 500 includes:

[0099] S510. The terminal device determines to send a first signal to a first network device in a first time unit on a first carrier, and determines a second signal to be sent to a second network device in a second time unit on a second carrier, where the first time unit and the second time unit overlap.

[0100] In the embodiments of the present application, the first carrier and the second carrier are different carriers.

[0101] In some possible implementation manners, the first carrier and the second carrier may belong to different carriers of the same CG, that is, two carriers for 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 a first network device in a first time unit on the first carrier, and sends a second signal to the first network device in a second time unit on the second carrier. That is, in this case, the first network device and the second network device are the same network device.

[0102] It should be understood that the first network device and the second network device being the same network device can be understood as that the first network device and the second network device are physically the same network device but logically different network devices. Or, it can also be understood that the first network device and the second network device are logically the same network device but physically different network devices.

[0103] In some other possible implementation manners, the first carrier and the second carrier may belong to carriers of different CGs. Among them, the first carrier and the second carrier may belong to the MCG and the SCG respectively. Then, the terminal device sends a first signal to a first network device in a first time unit on the first carrier, and sends a second signal to a second network device at a second time on the second carrier. That is, in this case, the first network device and the second network device are different network devices.

[0104] 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.

[0105] Alternatively, the first carrier and the second carrier may also belong to two different SCGs respectively, or the first carrier and the second carrier may also belong to two different MCGs respectively. That is, in this case, the first network device and the second network device may be the same network device.

[0106] It should be understood that the first carrier and the second carrier may belong to the same radio access technology. For example, both the first carrier and the second carrier are NR carriers, or both the first carrier and the second carrier are 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, and the embodiments of the present application do not specifically limit the radio access technologies supported by the first carrier and the second carrier.

[0107] It should be noted that the first time unit may also be a first time period, and the first time period may be one first time unit or multiple first time units. The second time unit may also be a second time period, and the second time period may also be one second time unit or multiple second time units.

[0108] Optionally, the first time unit and the second time unit may be respectively one of the following time units:

[0109] The first type: subframe. The length of one subframe is 1 ms. Under the structure (numerology) with a 15 kHz subcarrier spacing, it includes 14 orthogonal frequency division multiplexing (OFDM) symbols. Within one subframe, the symbol boundaries of various numerologies with subcarrier spacings of 15 kHz and above are aligned. Herein, unless otherwise specified, the "symbol" in the following text refers to the OFDM symbol.

[0110] The second type: slot, which is the time length of a possible scheduling unit. One slot in NR includes 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 15 kHz, the length of one slot is 1 ms; when the subcarrier spacing is 30 kHz, the length of one slot is 0.5 ms; when the subcarrier spacing is 60 kHz, the length of one slot is 0.25 ms; when the subcarrier spacing is 120 kHz, the length of one slot is 0.125 ms.

[0111] The third type: mini-slot, which is the minimum time length of the scheduling unit. One mini-slot can include 2 or more symbols (less than 14 symbols) in terms of time.

[0112] The fourth type: Symbol, which can be an OFDM symbol or a DFT-S-OFDM symbol, and is not limited herein.

[0113] That is to say, the first time unit can be any one of the first subframe, the first slot, the first mini-slot, or the first symbol, and the first time period can be any one of multiple first subframes, multiple first slots, multiple first mini-slots, or multiple first symbols. The second time unit can also be any one of the first subframe, the first slot, the first mini-slot, or the first symbol, and the second time period can be any one of multiple first subframes, multiple first slots, multiple first mini-slots, or multiple first symbols.

[0114] In some embodiments, the first signal may be a sensing signal or a communication-sensing signal, and the second signal may also be a sensing signal or a communication-sensing signal. The types of the first signal and the second signal may be the same or different, that is, both the first signal and the second signal may be sensing signals, or both the first signal and the second signal may be communication-sensing signals. Or rather, the first signal and the second signal may be a sensing signal and a communication-sensing signal respectively, that is, the first signal is a sensing signal and the second signal is a communication-sensing signal, or the first signal is a communication-sensing signal and the second signal is a sensing signal, etc. The embodiments of the present application do not make specific limitations on the types of the first signal and the second signal.

[0115] It should be understood that a sensing signal can be understood as a signal for sensing an object or an environment, and a communication-sensing signal can be understood as a signal for both communication and sensing. The signal for communication includes a signal for data transmission, such as PUSCH, and a signal for measuring a communication channel, such as PUCCH, etc.

[0116] S520. The terminal device determines the first transmission power of the first signal to be transmitted within the first time unit, and the second transmission power of the second signal to be transmitted within the second time unit.

[0117] In a possible implementation manner, the first transmission power of the terminal device for transmitting the first signal is pre-indicated by the network device, and the second transmission power of the terminal device for transmitting the second signal is also pre-indicated by the network device.

[0118] In another possible implementation manner, the first transmission power of the terminal device for transmitting the first signal may be calculated according to a certain calculation formula indicated by the network device, and the second transmission power of the terminal device for transmitting the second signal may also be calculated according to a certain calculation formula indicated by the network device.

[0119] Of course, the terminal device can also determine the first transmission power and the second transmission power in other ways. The embodiments of the present application do not make specific limitations on the manner in which the terminal device determines the first transmission power of the first signal to be transmitted within the first time unit and the second transmission power of the second signal to be transmitted within the second time unit.

[0120] S530. When the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal device, the terminal device determines the third transmission power of the first signal to be transmitted within the first time period and the fourth transmission power of the second signal to be transmitted within the second time period, where the third transmission power is less than or equal to the first transmission power, and the fourth transmission power is less than or equal to the second transmission power.

[0121] In an embodiment of the present application, the terminal device may determine whether the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal device based on the first transmission power and the second transmission power. When the sum of the first transmission power and the second transmission power is greater than the maximum transmission power of the terminal device, the terminal device may re-determine the transmission power for transmitting the first signal within the first time unit in the first carrier based on the maximum transmission power, that is, the third transmission power, and re-determine the transmission power for transmitting the second signal within the second time unit in the second carrier, that is, the fourth transmission power.

[0122] In some embodiments, when allocating the third transmission power and the fourth transmission power based on the maximum transmission power, the terminal device ensures that the frequency-domain power spectral density when transmitting the first signal using the third transmission power is equal to the frequency-domain power spectral density when transmitting the second signal using the fourth transmission power. When the bandwidths of the first signal and the second signal are not equal, the equal frequency-domain power spectral density makes the signal with a larger bandwidth have a greater power.

[0123] It should be understood that the frequency-domain power spectrum can be understood as the transmission power on each frequency-domain resource.

[0124] Exemplarily, Figure 6 FIG. shows a schematic diagram of an example power allocation method provided by an embodiment of the present application. As Figure 6 shown, the frequency-domain power spectral density when the terminal device transmits the first signal within the first time unit on the first carrier is equal to the frequency-domain power spectral density when the terminal device transmits the second signal within 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.

[0125] In this implementation manner, the third transmission power and the fourth transmission power satisfying that the frequency-domain power spectral density when the terminal device transmits the first signal is equal to the frequency-domain power spectral density when transmitting the second signal can make the sum of the third transmission power and the fourth transmission power less than or equal to the maximum transmission power of the terminal device.

[0126] In other embodiments, the terminal device ensures that the power when transmitting the first signal using the third transmission power is equal to the power when transmitting the second signal using the fourth transmission power based on the maximum transmission power. That is, the terminal device may equally allocate the third transmission power and the fourth transmission power based on the maximum transmission power, so that the third transmission power and the fourth transmission power are equal. When the bandwidths of the first signal and the second signal are not equal, the signal with a larger bandwidth has a lower frequency-domain power spectral density.

[0127] Exemplarily, Figure 7 FIG. shows a schematic diagram of another example power allocation method provided by an embodiment of the present application. As Figure 7As shown, the area of the square is the transmission power of the signal. The power of the terminal device transmitting the first signal is equal to the power of the terminal device transmitting the second signal. When the bandwidth of the terminal device transmitting the first signal in the first time unit of the first carrier is greater than the bandwidth of the terminal device transmitting the second signal in the second time unit of the second carrier, the frequency-domain power spectral density of the first signal is lower than that of the second signal.

[0128] In this implementation, the third transmission power and the fourth transmission power satisfy that the power of the terminal device when transmitting the first signal is equal to the power when transmitting the second signal, so that the sum of the third transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal device.

[0129] In some other embodiments, the terminal device, based on the maximum transmission power, ensures that the power is preferentially allocated to the resource units with smaller frequencies in the carrier with a smaller frequency and the resource units with larger frequencies in the carrier with a larger frequency.

[0130] Exemplarily, Figure 8 shows a schematic diagram of another power allocation method provided by the embodiments of the present application. As Figure 8 shown, 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. 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 the terminal device allocates the third transmission power and the fourth transmission power based on the maximum transmission power, it preferentially allocates the power to the first frequency-domain resource in the first carrier and the fourth frequency-domain resource in the second carrier.

[0131] It should be understood that the transmission power of the terminal device being preferentially allocated to the first frequency-domain resource in the first carrier and the fourth frequency-domain resource in the second carrier can be understood as that the terminal device preferentially allocates the 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 magnitude of the transmission power. After the first frequency-domain resource in the first carrier and the fourth frequency-domain resource in the second carrier are allocated, 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 magnitude of the remaining transmission power. That is, the power spectral density of the first signal on the first frequency-domain resource in the first carrier is greater than that on the second frequency-domain resource in the first carrier, and the power spectral density of the second signal on the third frequency-domain resource in the second carrier is greater than that on the fourth frequency-domain resource in the second carrier.

[0132] It should also be understood that the first frequency-domain resource may include one resource unit, such as one subcarrier, or may include multiple resource units, such as multiple subcarriers, etc. Similarly, the second frequency-domain resource may also include one resource unit or multiple resource units, and the third frequency-domain resource may also include one resource unit or multiple resource units, and the fourth frequency-domain resource may also include one resource unit or multiple resource units.

[0133] In this implementation manner, the third transmission power and the fourth transmission power satisfy that the power is preferentially allocated to the resource units with smaller frequencies in the carrier with a smaller frequency and the resource units with larger frequencies in the carrier with a larger frequency, and on the basis that the sum of the third transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal device, the sensing accuracy of the signal is improved.

[0134] In a possible implementation manner, the terminal device may receive first indication information from the network device, and the first indication information is used to indicate the mode in which the terminal device sends sensing signals on the first carrier and the second carrier. The mode of the sensing signal includes: a joint sensing mode and an independent sensing mode. Among them, the joint sensing mode means that the network device can perform joint sensing on the first signal and the second signal sent by the terminal device, thereby improving the sensing performance. The independent sensing mode means that the network device uses the first signal and the second signal for sensing respectively.

[0135] Optionally, when the first indication information indicates that the mode in which the terminal device sends sensing signals on the first carrier and the second carrier is the joint sensing mode, the terminal device may determine the third transmission power and the fourth transmission power in any one of the above three manners.

[0136] When the first indication information indicates that the mode in which the terminal device sends sensing signals on the first carrier and the second carrier is the independent sensing mode, the terminal device may perform resource allocation based on priority. For example, the priority of the primary carrier is higher than that of the secondary carrier, and the priority of the primary CG is higher than that of the secondary CG. Therefore, the power is preferentially allocated to the signal with a higher priority, and if there is a remainder, it is allocated to the signal with a lower priority.

[0137] In other words, the first indication information may also be understood as being used to indicate the power allocation manner for the terminal device to send the first signal on the first carrier and the second signal on the second carrier; the terminal device determines the third transmission power and the fourth transmission power according to the first indication information, including: when the first indication information indicates the first power allocation manner, 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 transmission power is equal to the fourth transmission power. For example, Figure 6 and Figure 7 the example shown.

[0138] Alternatively, 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 that 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 that in the second frequency domain resource on the fourth carrier. For example, Figure 8 the example shown.

[0139] S540a. The terminal device sends the first signal to the first network device at a third transmission power within the first time unit on the first carrier.

[0140] S540b. The terminal device sends the second signal to the second network device at a fourth transmission power within the second time unit on the second carrier.

[0141] Based on the power allocation scheme in step S530, determine the third transmission power for the terminal device to send the first signal and the fourth transmission power for sending the second signal. The sum of the third transmission power and the fourth transmission power is less than or equal to the maximum transmission power of the terminal device. And based on the power determination method in step S530, when the terminal device simultaneously sends sensing signals on two different carriers, effective power control can be performed.

[0142] Optionally, in a 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 the first threshold, the first signal may not be sent in step S540 and only the second signal is 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 the second threshold, the second signal may not be sent in step S540 and only the first signal is sent.

[0143] It should be understood that the difference between the third transmission power and the first transmission power may be the difference in logarithmic values of the first transmission power and the third transmission power, or the difference between the third transmission power and the first transmission power may also be the difference in linear values of the first transmission power and the third transmission power.

[0144] For example, if the first transmission power is 20 dB and the third transmission power is 17 dB, the power difference is 3 dB. Assuming the first threshold is 2 dB, and this difference is greater than the first threshold, the terminal device may not send the first signal and only send the second signal.

[0145] Or, if the first transmission power is 0.05 W and the third transmission power is 0.03 W, the power difference is 0.02 W. Assuming the first threshold is 0.01 W, and this difference is greater than the first threshold, the terminal device may not send the first signal and only send the second signal.

[0146] It should be noted that the first threshold can be determined according to specific circumstances, and the embodiments of the present application do not make specific limitations on the value of the first threshold.

[0147] Of course, the difference between the fourth transmission power and the second transmission power can also be the difference between the logarithmic values of the second transmission power and the fourth transmission power, or the difference between the fourth transmission power and the second transmission power can also be the difference between the linear values of the second transmission power and the fourth transmission power. The second threshold can be determined according to specific circumstances, and the embodiments of the present application do not make specific limitations on the value of the second threshold.

[0148] It should be noted that Figure 5 In the example of, the terminal device sends a first signal to the first network device at a third transmission power within a first time unit on a first carrier, and sends a second signal to the second network device at a fourth transmission power within a second time unit on a second carrier. The first network device and the second network device can perform joint sensing on the object to be measured based on the received first signal and second signal. The first network device and the second network device can be the same device or different devices.

[0149] The applicable scenarios of the embodiments of the present application also include the terminal device as the sender and receiver of the sensing signal, that is, the terminal device sends the sensing signal, the terminal device receives the signal reflected from the surface of the object to be measured by the sensing signal, and the terminal device performs joint sensing on the object to be measured based on the received first signal and second signal. The terminal device sending the sensing signal and the terminal device receiving the sensing 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.

[0150] In summary, based on the communication method provided by the embodiments of the present application, an uplink power allocation scheme for the communication signal of the sensing signal is defined. The allocation scheme includes three methods: equalizing the power spectral density, evenly distributing the power, and preferentially allocating power to high and low frequency resource units, so that the joint sensing performance is optimal in the DC scenario for multi-carriers. Therefore, when the terminal device simultaneously sends sensing signals on two different carriers, effective power control can be performed.

[0151] It should be understood that the division of the methods, situations, categories, and embodiments in the embodiments of the present application is only for the convenience of description and should not constitute a special limitation. The features in various methods, categories, situations, and embodiments can be combined without conflict.

[0152] It should also be understood that the above is only to help those skilled in the art better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application. Those skilled in the art can obviously make various equivalent modifications or changes according to the above examples given. For example, some steps in the above method 500 may not be necessary, or some steps may be newly added, etc. Or any combination of any two or any multiple of the above embodiments. The solutions after such modifications, changes or combinations also fall within the scope of the embodiments of the present application.

[0153] 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 not mentioned can be referred to each other. For the sake of brevity, they will not be elaborated here.

[0154] It should also be understood that the magnitudes of the serial numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0155] It should also be understood that in the embodiments of the present application, "preset" and "predefined" can be implemented by pre-saving corresponding codes, tables or other means that can be used to indicate relevant information in a device (for example, including a terminal device and a network device). The present application does not limit its specific implementation manner.

[0156] It should also be understood that in the various embodiments of the present application, if there is no special explanation and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be mutually referred to. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0157] The above has introduced in detail the examples of the communication method provided by the present application. It can be understood that for the authentication service function, the terminal device, and the unified data management to implement the above functions, they include the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, combined with the units and algorithm steps of the examples described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described function for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0158] Next, the communication device provided by the present application will be introduced.

[0159] Exemplarily, Figure 9FIG. 0 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 procedure performed by the terminal device described in each embodiment of the above method 500.

[0160] As Figure 9 shown, the communication device 900 includes a transceiver unit 910 and a processing unit 920. The transceiver unit 910 is used to perform specific signal transceiver under the drive of the processing unit 920.

[0161] In some embodiments:

[0162] The processing unit 920 is used to determine the first transmission power of a first signal within a first time unit on a first carrier, and determine the 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;

[0163] The processing unit 920 is further used to, when the sum of the first transmission power and the second transmission power is greater than a transmission power threshold, determine 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 determine 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; where 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.

[0164] For the communication device provided in this application, in the DC scenario, if there is an overlap in the time when the terminal device sends 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, any one of the above three methods can be used to allocate the transmission power of the terminal device, so that the third transmission power when the terminal device sends the first signal on the first carrier and the fourth transmission power when sending the second signal on the second carrier can be effectively controlled, avoiding the third transmission power and the fourth transmission power being greater than the maximum transmission power of the terminal device.

[0165] In some possible implementation manners, the processing unit 920 is further configured to preferentially allocate 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.

[0166] In some possible implementation manners, when the frequency-domain power spectral density of the first signal and the frequency-domain power spectral density of the second signal are equal, 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.

[0167] In some possible implementation manners, when the first transmission power and the second transmission 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.

[0168] In some possible implementation manners, the transceiver unit 910 is further configured to receive first indication information sent by the network device, where the first indication information is used to indicate the power allocation method for the terminal device to send 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 includes: 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 transmission power and the fourth transmission power are equal; 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 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.

[0169] It should be understood that for the specific processes of each unit in the communication device 900 to execute the above corresponding steps, please refer to the foregoing in combination with method 500 and Figure 5Description related to the terminal device in the relevant embodiments. For example, the transceiver unit 910 may perform the steps involving reception and transmission in the foregoing method embodiments, and the processing unit 920 may perform the steps other than reception and transmission. Various specific processes are as described in the method embodiments. For the sake of brevity, they are not elaborated here.

[0170] Optionally, the transceiver unit 910 may include a receiving unit (module) and a transmitting unit (module), and is used to perform the steps of the terminal device receiving information and sending information in each embodiment of the foregoing method 500.

[0171] 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 The schematic block diagram of another example communication device 1000 provided in the embodiments of the present application is shown. As Figure 10 shown, the communication device 1000 may include a processor 1010, a memory 1020, and a transceiver 1030.

[0172] Figure 9 The communication device 900 shown or Figure 10 The communication device 1000 shown can implement the steps performed by the terminal device in the embodiments of the foregoing method 500. Similar descriptions can refer to the descriptions in the corresponding foregoing methods. To avoid repetition, they are not elaborated here.

[0173] It should also be understood that Figure 9 The communication device 900 shown or Figure 10 The communication device 1000 shown may be a terminal device.

[0174] Figure 11 The schematic block diagram of the communication device 110 in the embodiments of the present application is shown. The communication device 1100 may correspond to the network device described in the foregoing 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 perform each action or processing process performed by the network device in the foregoing method 500.

[0175] As Figure 11 shown, the communication device 1100 may include a transceiver unit 1110 and a processing unit 1120. The transceiver unit 1110 is used to perform specific signal reception and transmission under the drive of the processing unit 1120.

[0176] In some embodiments:

[0177] The transceiver unit 1110 is used to receive a first signal transmitted by a terminal device with a third transmission power within a first time unit on a first carrier wave, and a second signal transmitted with a fourth transmission power within a second time unit on a second carrier wave;

[0178] 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,

[0179] the third transmission power is equal to the fourth transmission power; or,

[0180] 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, 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, 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.

[0181] In the communication device provided in this application, in the DC scenario, the network device can receive the first signal transmitted by the terminal device with the third transmission power and the second signal transmitted with the fourth transmission power, where 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, avoiding the third transmission power and the fourth transmission power from being greater than the maximum transmission power of the terminal device.

[0182] In some possible implementation manners, 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.

[0183] In some possible implementation manners, 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.

[0184] In some possible implementation manners, the transceiver unit 1110 is further configured to send first indication information to the terminal device, where the first indication information is used to indicate the power allocation manner for the terminal device to transmit the first signal on the first carrier and the second signal on the second carrier;

[0185] The power allocation manner includes: when the first indication information indicates the 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;

[0186] 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 that 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 that in the second frequency domain resource on the fourth carrier.

[0187] It should be understood that for the specific processes of each unit in the communication device 1100 to execute the above corresponding steps, please refer to the description related to the network device in the relevant embodiments of the method 500 in the previous text. For example, the transceiver unit 1110 can execute the steps related to reception and transmission in the above method embodiments, and the processing unit 1120 can execute the steps other than processing and transceiver. The specific processing methods are as described in the method embodiments. For the sake of brevity, they are not elaborated here.

[0188] Optionally, the transceiver unit 1110 may include a receiving unit (module) and a transmitting unit (module), and is used to execute the steps of the network device receiving information and transmitting information in each embodiment of the foregoing method 500.

[0189] 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 FIG. shows a schematic block diagram of another example communication device 1200 provided in an embodiment of the present application. As Figure 12 shown, the communication device 1200 may include a processor 1210, a memory 1220, and a transceiver 1230.

[0190] Figure 11 The communication device 1100 shown or Figure 12 The communication device 1200 shown can implement the steps executed by the network device in the embodiments of the foregoing method 500. Similar descriptions can refer to the descriptions in the corresponding methods foregoing. To avoid repetition, they are not elaborated here.

[0191] It should also be understood that Figure 11 The communication device 1100 shown or Figure 12 The communication device 1200 shown may be a network device.

[0192] It should also be understood that the division of units in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into a physical entity, or physically separated. And the units in the device can all be implemented in the form of software called by processing elements; they can also all be implemented in the form of hardware; or some units can be implemented in the form of software called by 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 can be integrated in a certain chip of the device. In addition, it can also be stored in the memory in the form of a program and called and executed by a certain processing element of the device to perform the functions 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 of the above units can be implemented through the integrated logic circuit of the hardware in the processor element or in the form of software called by the processing element.

[0193] In one example, the units in any of the above devices can be one or more integrated circuits configured to implement the above method. For example: 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. Again, when the units in the device can be implemented in the form of a processing element scheduling program, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs. Again, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0194] Figure 13 The figure is a schematic structural diagram of a terminal device 1300 provided by this application, which can be used to implement the functions of the terminal device in the above method. The above communication device 900 or communication device 1000 can be configured in the terminal device 1300. Or, the communication device 900 or communication device 1000 itself can be the terminal device 1300. Or rather, the terminal device 1300 can perform the actions executed by the terminal device in the above method 500. Optionally, for ease of explanation, Figure 13 only the main components of the terminal device are shown. As Figure 13 shown, the terminal device 1300 includes a processor, a memory, a control circuit, an antenna, and an input / output device.

[0195] The processor is mainly used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process the data of software programs. For example, it is used to support the terminal device to perform the actions described in the embodiments of the method for indicating the transmission precoding matrix. The memory is mainly used to store software programs and data, such as storing the codebook described in the above embodiments. The control circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The input / output device, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.

[0196] After the terminal device is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be wirelessly transmitted, the processor performs baseband processing on the data to be transmitted and then outputs a baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0197] Those skilled in the art can understand that, for the sake of convenience of description, Figure 13 only one memory and one processor are shown. In an actual terminal device, there may be multiple processors and memories. The memory can also be referred to as a storage medium or a storage device, etc., and the embodiments of the present application do not limit this.

[0198] For example, the processor may include a baseband processor and a central processor. The baseband processor is mainly used to process communication protocols and communication data, and the central processor is mainly used to control the entire terminal device, execute software programs, and process the data of software programs. Figure 13The processor therein integrates the functions of a baseband processor and a central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit can also be independent processors interconnected through technologies such as a bus. Those skilled in the art can understand that a terminal device can include multiple baseband processors to adapt to different network standards, and a terminal device can include multiple central processing units to enhance its processing power. Each component of the terminal device can be connected through various buses. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processing unit can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in a storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

[0199] Exemplarily, in an embodiment of the present application, an antenna and a control circuit with transceiver functions can be regarded as a transceiver unit 1301 of the terminal device 1300, and a processor with processing functions can be regarded as a processing unit 1302 of the terminal device 1300. As Figure 13 shown, the terminal device 1300 includes a transceiver unit 1301 and a processing unit 1302. The transceiver unit can also be referred to as a transceiver, a transceiver machine, a transceiver device, etc. Optionally, the devices in the transceiver unit 1301 for implementing the receiving function can be regarded as a receiving unit, and the devices in the transceiver unit 1301 for implementing the sending function can be regarded as a sending unit, that is, the transceiver unit 1301 includes a receiving unit and a sending unit. Exemplarily, the receiving unit can also be referred to as a receiver, a receiver circuit, etc., and the sending unit can be referred to as a transmitter, a transmitter circuit, etc.

[0200] Figure 14 FIG. is a schematic 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 (BBUs) (which can also be referred to as digital units, DUs) 1402. The RRU 1401 can be referred to as a transceiver unit, a transceiver machine, a transceiver circuit, or a transceiver, etc., and it can include at least one antenna 14011 and a radio frequency unit 14012. The RRU 1401 part is mainly used for the transceiver of radio frequency signals and the conversion between radio frequency signals and baseband signals, for example, for sending the signaling messages in the above embodiments to the terminal device. The BBU 1402 part is mainly used for baseband processing and controlling the base station, etc. The RRU 1401 and the BBU 1402 can be physically set together or physically separated, that is, a distributed base station.

[0201] The BBU 1402 is the control center of the base station, which can also be referred to as a processing unit. It is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spreading, 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 embodiments.

[0202] In one example, the BBU 1402 can be composed of one or more single boards. Multiple single boards can jointly support a radio access network of a single access mode (such as an LTE system or a 5G system), or can respectively support radio access networks of different access modes. 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 embodiments, etc. The processor 14022 is used to control the base station to perform necessary actions. For example, it is used to control the base station to execute the operation process of the network device in the above method embodiments. The memory 14021 and the processor 14022 can serve one or more single boards. That is to say, a memory and a processor can be separately provided on each single board. It can also be that multiple single boards share the same memory and processor. In addition, necessary circuits can be provided on each single board.

[0203] In a possible implementation manner, with the development of system-on-chip (SoC) technology, all or part of the functions of the 1402 part and the 1401 part can be implemented by SoC technology. For example, it can be implemented by a base station function chip. The base station function chip integrates devices such as a processor, a memory, and an antenna interface. Programs related to the base station functions are stored in the memory, and the processor executes the programs to implement the related functions of the base station. Optionally, the base station function chip can also read the external memory of the chip to implement the related functions of the base station.

[0204] It should also be understood that the division of units in the above device is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. And the units in the device can all be implemented in the form of software called by a processing element; they can also all be implemented in the form of hardware; or some units can be implemented in the form of software called by a processing element, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or can be integrated in a certain chip of the device. In addition, it can also be stored in the memory in the form of a program, and the function of the unit can be called and executed by a certain processing element of the device. 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 of the above units can be implemented through the integrated logic circuit of the hardware in the processor element or in the form of software called by the processing element. In one example, the units in any of the above devices can be one or more integrated circuits configured to implement the above method, for example: 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. Again, when the units in the device can be implemented in the form of a processing element scheduling program, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs. Again, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0205] The embodiment of the present application also provides a chip system, as Figure 15 shown. The chip system includes at least one processor 1510 and at least one interface circuit 1520. The processor 1510 and the interface circuit 1520 can be interconnected by a line. For example, the interface circuit 1520 can be used to receive signals from other devices (such as the memory of the terminal device 1300). Again, for 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 the 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 be made to execute each step executed by the terminal device in the above embodiment. Of course, the chip system can also include other discrete devices, and the embodiment of the present application does not make specific limitations on this.

[0206] An embodiment of this application also provides a communication system, which includes: the network device and the terminal device provided in the above method embodiment.

[0207] An embodiment of this application also provides a computer-readable storage medium for storing computer program code. The computer program includes instructions for executing any one of the communication methods provided in the above embodiments of this application. The readable medium may be a read-only memory (ROM) or a random access memory (RAM), and this application embodiment does not limit this.

[0208] This application also provides a computer program product, which includes instructions that, when executed, cause the network device and the terminal device to perform corresponding operations corresponding to those in the above method.

[0209] An embodiment of this application also provides a chip located in a communication device. The chip includes: 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, etc. The processing unit can execute computer instructions to cause the communication device to perform any one of the communication methods provided in the above embodiments of this application.

[0210] Optionally, the computer instructions are stored in a storage unit.

[0211] Optionally, the storage unit is a storage unit inside the chip, such as a register, a cache, etc. The storage unit may also be a storage unit outside the chip in the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a random RAM, etc. Among them, the processor mentioned anywhere above may be a CPU, a microprocessor, an ASIC, or an integrated circuit for controlling the execution of the program of any one of the above feedback information transmission methods. The processing unit and the storage unit may be decoupled and disposed on different physical devices, and are 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 various functions in the above embodiments. Or, the processing unit and the memory may also be coupled on the same device.

[0212] Among them, the terminal device, the computer-readable storage medium, the computer program product, or the chip provided in this embodiment are all used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method provided above, and will not be elaborated here.

[0213] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can 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 can be a RAM, which is used as an external cache. There are various 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), synch link dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM).

[0214] In the present application, names are given to various objects such as various messages / information / devices / network elements / systems / devices / actions / operations / processes / concepts, etc. that may appear. It can be understood that these specific names do not constitute limitations on the relevant objects, and the given names can be changed according to factors such as scenarios, contexts, or usage habits. The understanding of the technical meaning of the technical terms in the present application should be mainly determined from the functions and technical effects reflected / executed in the technical solutions.

[0215] In each embodiment of the present application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0216] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0217] 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, it 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 instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program or instructions can be stored in a computer-readable storage medium or transmitted through 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 integrating one or more available media.

[0218] Those skilled in the art can 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 foregoing method embodiments and will not be elaborated herein.

[0219] In several embodiments provided by the present 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 illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, 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 displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0220] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0221] In addition, the functional units in the various embodiments of the present application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0222] When the above-described function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art or a part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned readable storage medium includes: various media such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0223] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claimed rights.

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: When 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, 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.

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 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 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 7-10, characterized in that The first signal is a sensing signal or a communication and sensing integrated signal, and the second signal is a sensing signal or a communication and sensing integrated signal.

12. A communication device, characterized in that, The apparatus 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, Comprising: 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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