Communication method and communication apparatus

Abstract

Provided in the present application are a communication method and a communication apparatus, which can be applied to simultaneous wireless information and power transfer scenarios. A terminal device acquires from a network side an energy signal in advance, and on the basis of an SINR achievable by the terminal device, performs calculation to obtain a power allocation ratio of a simultaneous wireless information and power transfer signal at a sending end that is recommended by the terminal device; or the terminal device indicates the energy signal to a network device, and by means of an SINR obtained by measuring an uplink reference signal and the energy signal indicated by the terminal device, the network device can calculate a power allocation ratio at the sending end by the network device. On the basis of a power allocation ratio recommended by a terminal device or a power allocation ratio determined by means of calculation performed by the network device, a network device can eliminate the interference of an energy signal on a data signal, thereby improving the decoding performance of the data signal, and realizing a balance between energy charging efficiency and the decoding performance.

Description

Communication methods and communication devices

[0001] This application claims priority to Chinese Patent Application No. 202411210603.4, filed on August 29, 2024, entitled "Communication Method and Communication Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication technology, and more specifically, to a communication method and communication device in a data transmission technology. Background Technology

[0003] To address the issue of short standby lifespan in Internet of Things (IoT) nodes due to their low cost, small size, and inability to carry large-capacity batteries, the industry has proposed using environmental energy harvesting to provide a continuous power source for IoT nodes. Radio frequency (RF) energy is one candidate energy source, offering advantages such as controllable energy volume and source, as well as certain penetration and relatively long transmission distance. Since cellular mobile communication networks have numerous base stations with multiple antennas capable of emitting arbitrarily designed electromagnetic waves and providing directional beams to enhance RF energy in certain directions, frequency bands, and time periods, the inefficiency of energy transmission can be significantly improved. Therefore, wireless energy transmission via base stations is one of the important ways to address the short battery life of IoT devices in the future. However, cellular network resources are limited; if a large amount of resources are used for IoT charging, the resources available for communication will be severely restricted. For IoT nodes, if data can be transmitted simultaneously during charging, resource utilization can be further improved. Therefore, simultaneous wireless information and power transfer (SWIPT) has been proposed as an important technical means.

[0004] Existing data and energy simultaneous transmission mechanisms include power allocation at the transmitter and spatial multiplexing at the receiver. Assume the total transmit power at the transmitter is P, where the transmit power of the wireless data signal is (1-β)P, and the power of the wireless energy signal is βP. To increase energy harvesting efficiency, while maintaining a constant transmit power, the power allocation ratio β of the energy signal needs to be increased. However, increasing the power allocation ratio β significantly impacts information decoding at the receiver, resulting in poor decoding performance. Summary of the Invention

[0005] This application provides a communication method that can reduce the decoding interference of energy signals on data signals in simultaneous data and energy transmission signals, thereby improving the decoding performance of data signals.

[0006] Firstly, a communication method is provided, which can be executed by a communication device or a module applied to the communication device (e.g., a processor, chip, or circuit, or a logic module, hardware, and / or software capable of implementing all or part of the functions of the communication device). As an example, the communication device can be a transmitting-side device for simultaneous data and energy transmission signals, such as an access network device. The method can include: receiving a first signal or first information from a terminal device, the first signal including a first energy signal and an uplink reference signal, the first information indicating a first power allocation ratio threshold; determining a first power allocation ratio based on the first signal or the first information; and transmitting a second signal, the second signal including a first data signal and a second energy signal, the power of the first data signal and the power of the second energy signal being determined according to the first power allocation ratio.

[0007] In the technical solution of this application, before transmitting the data-energy simultaneous transmission signal, the transmitting device calculates a suitable power allocation ratio between the energy signal and the data signal in the data-energy simultaneous transmission signal based on feedback information (e.g., first information indicating a first power allocation ratio threshold) or signals (e.g., a first signal from the receiving device including a first energy signal and an uplink reference signal). This can eliminate the interference of the energy signal on the data signal, ensure the correct decoding of the data signal in the data-energy simultaneous transmission signal by the receiving device, and improve the decoding performance of the data signal.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, determining the first power allocation ratio based on the first information includes: sending a third energy signal, the third energy signal being used by the terminal device to determine the first power allocation ratio threshold; or, sending first downlink control information, the first downlink control information including a first field, the first field indicating an index of the third energy signal, the third energy signal being used by the terminal device to determine the first power allocation ratio threshold.

[0009] In this implementation, the network device sends an energy signal to the terminal device. Based on this energy signal and its own achievable SINR, the terminal device can determine a first power allocation ratio threshold and feed it back to the network device so that the network device can determine a suitable first power allocation ratio. Since different terminal devices have different demodulation capabilities, each terminal device feeds back the first power allocation ratio threshold according to its own demodulation capability. Therefore, the simultaneous data and energy transmission signal sent by the network device can achieve a balance between the charging and decoding performance of each terminal device.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the third energy signal belongs to a signal set, which includes at least one energy signal, and the at least one energy signal is a known signal.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the first information includes first uplink control information, the first uplink control information includes a second field, the second field indicating the first power allocation ratio threshold.

[0012] In this implementation, the terminal device indicates the first power allocation ratio threshold through a newly added field in the uplink control information, and the terminal device can flexibly indicate the first power allocation ratio threshold.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, receiving the first signal from the terminal device includes: receiving second uplink control information, the second uplink control information including a third field indicating the index of the first energy signal; and receiving the uplink reference signal.

[0014] In this implementation, the network device receives a first energy signal and an uplink reference signal, and can calculate a power allocation ratio that helps improve the decoding performance of the terminal device for data signals. The terminal device can indicate the index of the first energy signal through a newly added field in the uplink control information, thus allowing the network device to know the first energy signal. The network device can calculate the SINR by measuring the uplink reference signal, and combine this with the first energy signal to calculate the first power allocation ratio threshold. This implementation is applicable to scenarios where the network device calculates the first power allocation ratio threshold, such as when the terminal device has limited computing power.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: determining a modulation and coding strategy (MCS) based on the first power allocation ratio.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: sending second downlink control information, the second downlink control information indicating the first power allocation ratio and the MCS.

[0017] In this implementation, the network device determines the power allocation ratio of the actual transmitted data signal based on the calculated first power allocation ratio threshold, and then instructs it to the terminal device. The terminal device performs charging and decoding according to the power allocation ratio indicated by the network device and the corresponding MCS, which can eliminate the interference of the energy signal on the data signal, improve decoding performance, and achieve a balance between data signal decoding and charging.

[0018] Secondly, a communication method is provided, which can be executed by a communication device or a module applied to the communication device (e.g., a processor, chip, or circuit, or a logic module, hardware, and / or software capable of implementing all or part of the functions of the communication device). As an example, the communication device can be a receiving device for simultaneous data and energy transmission signals, such as a terminal device. The method can include: transmitting a first signal or first information, the first signal including a first energy signal and an uplink reference signal, the first information indicating a first power allocation ratio threshold; and receiving a second signal, the second signal including a first data signal and a second energy signal, the power of the first data signal and the power of the second energy signal being determined according to the first power allocation ratio.

[0019] The technical effects of the methods in the second aspect and its arbitrary implementation can be found in the relevant descriptions in the first aspect, and will not be repeated here.

[0020] In conjunction with the second aspect, in some implementations of the second aspect, before sending the first information, the method further includes: receiving a third energy signal; and determining the first power allocation ratio threshold based on the third energy signal.

[0021] In this implementation, the terminal device receives a third energy signal from the network device and, in conjunction with its own achievable SINR, can determine the first power allocation ratio.

[0022] In conjunction with the second aspect, in some implementations of the second aspect, before sending the first information, the method further includes: receiving first downlink control information, the first downlink control information including a first field, the first field indicating an index of a third energy signal; and determining a first power allocation ratio threshold based on the third energy signal.

[0023] In this implementation, the terminal device can obtain the third energy signal based on the first field in the first downlink control information. Combined with the SINR obtained by measuring the uplink reference signal, the first power allocation ratio can be determined.

[0024] In both implementations described above, the terminal device obtains the third energy signal from the base station, thus the third energy signal is known. Furthermore, the SINR achievable by the terminal device itself is known. Substituting the third energy signal into the SINR expression, the power ratio of the energy signal and data signal in the simultaneous data transmission signal can be solved. It can be understood that when the SINR is the minimum value at which the terminal device can correctly decode the data signal, the maximum power ratio of the energy signal and data signal can be calculated, i.e., the first power allocation ratio threshold.

[0025] In conjunction with the second aspect, in some implementations of the second aspect, the third energy signal belongs to a signal set, which includes at least one energy signal, and the at least one energy signal is a known signal.

[0026] In conjunction with the second aspect, in some implementations of the second aspect, the first information includes first uplink control information, the first uplink control information includes a second field, the second field indicating the first power allocation ratio threshold.

[0027] In conjunction with the second aspect, in some implementations of the second aspect, sending the first signal includes: sending second uplink control information, the second uplink control information including a third field indicating the first energy signal; and sending the uplink reference signal.

[0028] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: receiving second downlink control information, the second downlink control information indicating the first power allocation ratio and the MCS, the MCS being determined based on the first power allocation ratio.

[0029] Thirdly, a communication device is provided, which has the function of implementing the method in the first aspect or any possible implementation of the first aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above-described function.

[0030] Fourthly, a communication device is provided, which has the function of implementing the method in the second aspect or any possible implementation of the second aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above-described function.

[0031] Fifthly, a communication device is provided, comprising at least one processor configured to cause the communication device to execute the method of the first aspect or any possible implementation thereof; or to execute the method of the second aspect or any possible implementation thereof. Optionally, the at least one processor is coupled to at least one memory for storing computer programs or instructions, and the at least one processor is configured to call and run the computer program or instructions from the at least one memory, causing the communication device to execute the method of the first aspect or any possible implementation thereof; or to execute the method of the second aspect or any possible implementation thereof. Optionally, the at least one processor may be included in the communication device or may be configured outside the communication device. Optionally, the communication device further includes the at least one memory. Furthermore, the communication device may optionally include a communication interface coupled to the at least one processor, which can be used to input information and / or data to the at least one processor, or to output information and / or data from the at least one processor. As an example, the communication interface may include an input interface and / or an output interface, or an interface circuit, etc.

[0032] Sixthly, a communication device is provided, comprising a communication interface and a circuit. The communication interface is configured to receive a signal to be processed and transmit the signal to the circuit. The circuit is configured to process the signal to perform a method as described in the first aspect or any possible implementation thereof; or to perform a method as described in the second aspect or any possible implementation thereof. Optionally, the communication interface is further configured to output the signal processed by the circuit. As an example, the communication interface may be a transceiver, hardware circuit, bus, module, pin, or other type of communication interface. The signal includes information and / or data. Optionally, the communication device may be a chip.

[0033] A seventh aspect provides a computer-readable storage medium storing computer program code or instructions that, when executed on a computer, cause the method as described in the first aspect or any possible implementation thereof to be implemented; or, the method as described in the second aspect or any possible implementation thereof to be implemented.

[0034] Eighthly, a computer program product is provided, the computer program product comprising computer program code or instructions, which, when executed on a computer, cause the method in the first aspect or any possible implementation thereof to be implemented; or, as in the second aspect or any possible implementation thereof, the method to be implemented.

[0035] A ninth aspect provides a wireless communication system, including a communication device as described in the third aspect and a communication device as described in the fourth aspect. Attached Figure Description

[0036] Figure 1 shows an example of a communication system applicable to the technical solution of this application.

[0037] Figure 2 is a schematic diagram of an ORAN-based system architecture applicable to embodiments of this application.

[0038] Figure 3 is a schematic diagram of the data transmission mechanism between the transmitting and receiving ends.

[0039] Figure 4 is a schematic diagram of SIC decoding.

[0040] Figure 5 is a schematic flowchart of the communication method 200 provided in this application.

[0041] Figure 6 is an example of how the transmitting side device in this application determines the power allocation ratio of the multiple signals that can be transmitted simultaneously.

[0042] Figure 7 is another example of how the transmitting-side device in this application determines the power allocation ratio of the multiple signals that can be transmitted simultaneously.

[0043] Figure 8 is a schematic structural diagram of a communication device provided in this application.

[0044] Figure 9 is a schematic structural diagram of another communication device provided in this application.

[0045] Figure 10 is a schematic structural diagram of the chip provided in this application. Detailed Implementation

[0046] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0047] The technical solutions of this application can be applied to various existing and future communication systems, including but not limited to: satellite communication systems, fifth-generation (5G) systems or new radio (NR) systems, long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. Furthermore, they can also be applied to sidelink (SL) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), wireless fidelity (WIFI) systems, and Internet of Things (IoT) communication systems or other communication systems, etc., which are not limited herein.

[0048] The communication system applicable to this application may include one or more transmitting devices and one or more receiving devices. Optionally, one of the transmitting device and the receiving device may be a network device, and the other may be a terminal device.

[0049] For example, a terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user apparatus. In the embodiments of this application, the terminal device may be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, in-vehicle equipment, etc. The terminal device in the embodiments of this application can be a mobile phone, tablet, laptop, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. Optionally, the UE can be used as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in V2X or SL, etc. The terminal device can also be a terminal device in an IoT system, also known as an IoT node. IoT is an important part of the future development of information technology. Its main technical feature is connecting objects to networks through communication technology, thereby realizing an intelligent network of human-machine interconnection and machine-to-machine interconnection. The connection can be through broadband technology or narrowband technology. IoT technology can achieve massive connectivity, deep coverage, and low power consumption for terminals through technologies such as narrowband (NB). IoT technologies may include reflective communication, spread spectrum, and ultra-wideband (UWB), which will not be elaborated further.

[0050] In this embodiment, the device used to implement the functions of the terminal device can be the terminal device itself; it can also be a device capable of supporting the terminal device in implementing corresponding functions, such as a chip, a chip system, hardware circuits, software modules, or a combination of hardware circuits and software modules. This device can be configured within the terminal device, or it can be located on the terminal side and used in conjunction with the terminal device. The chip system can be composed of chips, or it can include chips and other discrete devices. In this embodiment, only the terminal device is used as an example to illustrate the device used to implement the functions of the terminal device.

[0051] The network device in this application embodiment may include a device that communicates with the terminal device and has wireless transmission and reception capabilities. The network device can provide wireless communication services, enabling the terminal device to access the wireless network. For example, the network device may refer to a radio access network (RAN) node (or device) used in a cellular network (or mobile network) to connect the terminal device to the wireless network; it may also be a Zigbee base station, a base station in Bluetooth (BT) related technologies, a base station in Bluetooth Low Energy (BLE) technology, a LoRa base station, a Wi-Fi access point, etc. Optionally, a base station can broadly encompass, or replace, various names such as: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station, auxiliary station, motor slide retainer (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), radio unit (RU), positioning node, etc. Furthermore, a base station can be a macro base station, micro base station, relay node, donor node, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, a device performing base station functions in D2D, V2X, and M2M communications, a network device (e.g., a base station) in a future communication network, or a device performing network device functions. A base station can support networks using the same or different access technologies. Optionally, a RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). The embodiments of this application do not limit the specific technology or device form used in the network equipment.

[0052] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0053] In some deployments, the network devices mentioned in the embodiments of this application may be devices including CU, DU, or CU and DU, or devices with control plane CU nodes (central unit-control plane (CU-CP)) and user plane CU nodes (central unit-user plane (CU-UP)) and DU nodes. For example, the network devices may include gNB-CU-CP, gNB-CU-UP, and gNB-DU.

[0054] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CU-CPs, CU-UPs, or RUs. CUs and DUs can be configured separately or included in the same network element, such as a BBU. RUs can be included in radio frequency equipment or radio frequency units, such as RRUs, AAUs, or RRHs.

[0055] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an open radio access network (ORAN / O-RAN) system, CU can also be called an open CU (open CU, O-CU), and DU can also be called an open DU (open DU, O-DU). CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0056] In this embodiment, the device used to implement the functions of the network device can be the network device itself; it can also be a device capable of supporting the network device in implementing the corresponding functions, such as a chip, hardware circuit, software module, or a combination of hardware circuit and software module. This device can be configured within the network device or located on the network side and used in conjunction with the network device. In this embodiment, the network device is used as an example to illustrate the function of the network device, and this does not constitute a limitation on the solutions described in this embodiment.

[0057] The communication method provided in this application can be applied to a variety of communication scenarios.

[0058] Figure 1 illustrates an example of a communication system applicable to the technical solution of this application. In the communication system shown in Figure 1, the communication method provided by this application is applicable to communication between network devices and terminal devices, i.e., uplink or downlink communication. In this communication scenario, the transmitting device in this embodiment can be a terminal device in uplink communication or a network device in downlink communication, and the receiving device can be a network device in uplink communication or a terminal device in downlink communication. Furthermore, it can also be applied to other communication scenarios described above, such as WIFI systems, without limitation.

[0059] Figure 2 is a schematic diagram of an ORAN-based system architecture applicable to embodiments of this application. The O-RAN system may include other components besides those shown in Figure 2. As shown in Figure 2, the access network device (RAN, for example, may be an eNB or gNB or an access network device in a future communication system) communicates with the core network (CN) via a backhaul link and with the UE via an air interface.

[0060] As an example, the baseband unit (BBU) in the access network equipment communicates with the core network via a backhaul link. The radio unit (RU) in the access network equipment communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located. The BBU includes at least one control unit (CU) and at least one distributed unit (DU), which can communicate via at least one midhaul link. In some examples, the DU is a logical node carrying one or more of the following functions: radio link control (RLC) layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer (which may refer to higher-level physical layer functions), and others. In some examples, the DU can control at least one RU. The DU connects to the RU via interfaces, which may be fronthaul interfaces. In some examples, an RU is a logical node carrying lower physical layer (PHY) (which can refer to lower-level PHY functions) and radio frequency (RF) processing. In some examples, an RU can be a transmission reception point (TRP), a remote radio head (RRH), or other similar entity. In some examples, an RU communicates with one or more UEs via a radio link. A DU and RU can be co-located or separate. DUs and RUs can cooperate to implement PHY layer functions. A DU can be connected to one or more RUs. The functions of DUs and RUs can be configured in various ways depending on the design. For example, a DU may be configured to implement baseband functions, and an RU may be configured to implement mid-RF functions. As another example, a DU may be configured to implement higher-level PHY functions, and an RU may be configured to implement lower-level PHY functions or both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0061] The technical solutions of this application embodiment can be applied to wireless communication and / or wireless charging between communication devices. Wireless communication and / or wireless charging between communication devices can include: wireless communication and / or wireless charging between network devices and terminal devices, wireless communication and / or wireless charging between network devices, and wireless communication and / or wireless charging between terminals. Furthermore, in this application embodiment, the term "wireless communication" can also be abbreviated as "communication"; "communication" can also be described as "data transmission," "information transmission," etc. The term "wireless charging" can also be abbreviated as "charging," "energy transfer," or "charging"; "charging" can also be described as "wireless energy transfer," "wireless charging," "wireless energy transmission," "radio frequency energy transmission," "radio frequency energy transfer," "radio frequency charging," or "radio frequency charging." In addition, the term "wireless data and energy simultaneous transmission" can also be described as "data and energy simultaneous transmission," "energy-carrying energy transmission," "energy-carrying signal transmission," "integrated data and energy transmission," "integrated energy and data transmission," or "wireless data and energy coordinated transmission," etc.

[0062] For ease of understanding, the relevant concepts or technologies involved in this application are introduced.

[0063] 1) Wireless data and energy transmission technology: This is a technology that uses wireless radio frequency signals to carry information and energy simultaneously, allowing information and energy to be received from a single radio frequency signal at the same time.

[0064] In this application, optionally, the wireless signal used for charging can be at least one of the following:

[0065] 1. A signal used to transmit data, that is, to achieve the function of energy transmission at the same time as communication.

[0066] 2. Signals used to transmit control signaling, such as signals carried by the physical downlink shared channel (PDSCH) and / or the physical downlink control channel (PDCCH).

[0067] 3. Reference signals. Examples include sounding reference signals (SRS), channel state information-reference signals (CSI-RS), demodulation reference signals (DMRS), positioning reference signals (PRS), and phase tracking reference signals (PTRS), among other types of reference signals.

[0068] 4. Dedicated non-communication signals, such as single-frequency signals transmitted at a certain frequency point, on a certain subcarrier, or within a certain frequency band, such as sine wave signals.

[0069] It should be noted that the wireless signals used for charging described above are just examples; other wireless signals can also be used, such as square wave signals, pulse wave signals, or multi-carrier signals.

[0070] As mentioned in the background section, wireless energy transfer (WPT) via base stations is one of the important ways to address the short battery life issue of Internet of Things (IoT) nodes. Due to the limited resources of cellular networks, if a large amount of resources are used to power IoT devices, the resources available for communication will be severely limited. For IoT nodes, if data can be transmitted simultaneously during charging, resource utilization can be further improved. Therefore, simultaneous wireless information and power transfer (SWIPT) is an important technical means.

[0071] Existing data transmission mechanisms include power division multiplexing at the transmitting end and space division multiplexing at the receiving end.

[0072] Figure 3 is a schematic diagram of the simultaneous data and energy transmission mechanism at the transmitting and receiving ends. As shown in Figure 3, the total transmission power of the transmitter is P, where the transmission power of the wireless data signal is (1-β)P, and the power of the wireless energy signal is βP. To increase the efficiency of energy harvesting, while keeping the total transmission power constant, the power ratio β of the wireless energy signal needs to be increased. However, increasing β will cause significant interference to the decoding of the wireless data signal at the receiving end. Therefore, energy harvesting efficiency and data transmission reliability are contradictory.

[0073] Since the power distribution at the transmitting end makes it difficult to eliminate the interference of wireless energy signals on wireless data signals, this application provides a scheme to eliminate the interference of wireless energy signals (hereinafter referred to as "energy signals") on wireless data signals (hereinafter referred to as "data signals") using the SIC method.

[0074] The principle of SIC decoding will be explained below with reference to Figure 4.

[0075] Figure 4 is a schematic diagram of SIC decoding. As shown in Figure 4, the transmitted symbol can be represented as s = (1-β)x + βw, where w is the energy symbol and x is the data symbol. The channel matrix is ​​represented by H, and the channel noise follows a mean of 0 and σ 2 The covariance is a Gaussian distribution, i.e., n ~ N(0, σ). 2 If ), then the received signal is y = Hs + n. The receiver performs power division using a ratio ρ, that is, (1-ρ)y is used for energy harvesting, and ρy is used for data signal decoding.

[0076] The signal decomposition used for data signal decoding yields ρy=ρ(1-β)Hx+ρHβw+ρn, where only ρ(1-β)Hx contains x and is considered valid information, while the rest ρHβw+ρn can be regarded as interference.

[0077] Furthermore, to improve the likelihood of correct decoding of data symbols, interference should be eliminated as much as possible. In Figure 4, on the one hand, ρn is a random variable following a Gaussian distribution, and its interference is difficult to eliminate in each implementation. On the other hand, ρHβw is the interference received by the terminal after the energy signal passes through channel H and undergoes two power divisions. Therefore, if channel measurements have been performed and the terminal knows the respective power allocation ratios of the transmitter and receiver, this interference can be completely eliminated if the base station pre-transmits the energy symbol w.

[0078] SINR, or Signal-to-Interference-plus-Noise Ratio, reflects the ratio of the power of the useful signal to the power of the sum of interference and noise. It is generally expressed logarithmically, with the unit being decibels (dB). In this embodiment, as an example, it is expressed as a linear value:

[0079] Among them, P s P refers to the effective power of the useful signal. I P refers to the effective power of all interfering signals. N This is the effective power of all noise, and in scenarios where power splitting is used at both the transmitting and receiving ends, P s This refers to the effective power of ρ(1-β)Hx, P N Let ρn be the effective power. Under current technology, the interference is ρHβw, therefore, E{·} represents the energy. Assuming the terminal device knows the power distribution ratio between the transmitter and receiver and the energy symbol w, the influence of the energy signal can be completely eliminated. That is, decoding y′=ρy-ρHβw=ρ(1-β)Hx+ρn reveals P I =0, SINR increases to An increase in SINR helps the terminal side decode data symbols.

[0080] The communication method provided in this application will be described in detail below.

[0081] Figure 5 is a schematic flowchart of the communication method 200 provided in this application. Method 200 can be executed by a first device, which can be a communication device or a device used with a communication device (e.g., a chip, processor, circuit, software and / or hardware combined module, etc.). As an example, the first device is a transmitting device for simultaneous data transmission signals, such as a network device. Optionally, method 200 may also include a second device. Similarly, the second device can be a communication device or a device used with a communication device (e.g., a chip, processor, circuit, software and / or hardware combined module, etc.). As an example, the second device is a receiving device for simultaneous data transmission signals, such as a terminal device. The following description uses network devices and terminal devices as examples to illustrate the solution of this application.

[0082] 210. The network device receives a first signal or first information from the terminal device. The first signal includes a first energy signal and an uplink reference signal. The first information is used to indicate a first power allocation ratio threshold.

[0083] In this embodiment, the first power allocation ratio is used to determine the power of the data signal and the power of the energy signal in the simultaneous data and energy transmission signal. This power allocation ratio ensures that the receiving device correctly decodes the data signal included in the simultaneous data and energy transmission signal. The first power allocation ratio threshold is the upper limit of the first power allocation ratio. Optionally, in this embodiment, the first power allocation ratio may include, but is not limited to, the power ratio of the energy signal in the simultaneous data and energy transmission signal, the power ratio of the data signal in the simultaneous data and energy transmission signal, or other information that can be used to determine or indicate the power ratio of the data signal and the energy signal in the simultaneous data and energy transmission signal, without limitation.

[0084] For clarity, the following explanation uses the first power allocation ratio as the proportion of the energy signal's power to the total power of the digital-energy simultaneous transmission signal. In other words, the first power allocation ratio is β in Figure 4 above.

[0085] 220. The network device determines the first power allocation ratio based on the first signal or the first information.

[0086] As an example, a network device receives first information from a terminal device and determines a first power allocation ratio based on the first information. In this example, the network device sends a third energy signal to the terminal device. The third energy signal can be a signal from a set of signals, which includes at least one energy signal, and this at least one energy signal is a known signal, for example, it is predefined or preconfigured. The terminal device receives the third energy signal from the network device. In another example, the network device indicates the index of the third energy signal to the terminal device. For example, the network device indicates the third energy signal to the terminal device through a field in downlink control information (DCI). Based on the methods in the above two examples, the terminal device can obtain the third energy signal and, according to its achievable SINR, determine the third energy signal based on the above relationship. Since the energy sequence w is known to the terminal device (i.e., the third energy signal), a power allocation ratio can be calculated. This calculated power allocation ratio is called the second power allocation ratio. The second power allocation ratio determined by the terminal device is the upper limit of the power allocation ratio for the simultaneous data transmission signal sent by the transmitting device, which is the aforementioned first power allocation ratio threshold. Therefore, the power allocation ratio for the simultaneous data transmission signal ultimately determined by the network device is equal to or less than the second power allocation ratio. After determining the first power allocation ratio threshold, the terminal device sends information indicating the first power allocation ratio threshold (e.g., the first information in the following embodiment) to the network device. The network device determines the first power allocation ratio based on the first power allocation ratio threshold indicated by the received terminal device.

[0087] As another example, the network device determines a first power allocation ratio based on a first signal from a terminal device. For instance, the terminal device sends a first energy signal and an uplink reference signal to the network device. The network device calculates the SINR and determines the first power allocation ratio based on the first energy signal and the uplink reference signal. The terminal device can indicate the index of the first energy signal to the network device via uplink control information (UCI). Similarly, the first energy signal comes from a set of signals containing at least one energy signal, which can be predefined or preconfigured. The network device can identify the first energy signal based on its index. The network device then calculates the SINR based on the first signal. pre SINR pre SINR can be understood as the SINR calculated by the network device taking into account the decoding interference of the energy signal on the data signal in the simultaneous transmission of data and energy. s is the uplink reference signal, and n is noise. It's important to note that in this example, the uplink reference signal sent by the terminal device is entirely a data signal (or a signal used for communication functions), meaning it does not include an energy signal. In other words, the network device can determine the first power allocation ratio based on the uplink reference signal from the terminal device in a scenario where data and energy transmission are not considered simultaneously, as well as the first energy signal from the terminal device.

[0088] 230. The network device sends a second signal, which includes a first data signal and a second energy signal. The power of the first data signal and the power of the second energy signal are determined according to a first power allocation ratio.

[0089] The second signal is a data-energy simultaneous transmission signal, comprising a data signal (specifically, the first data signal) and an energy signal (specifically, the second energy signal). Based on the description of the first power allocation ratio in step 220, the network device can determine the power of the energy signal and the power of the data signal in the second signal based on the first power allocation ratio.

[0090] In the technical solution provided in this application, the transmitting device for simultaneous data and power transmission, such as the network device in method 200, calculates a suitable power allocation ratio between the energy signal and the data signal in the simultaneous data and power transmission signal before transmitting the signal, based on feedback information (e.g., first information indicating a first power allocation ratio threshold) or signals (e.g., a first signal from the receiving device including a first energy signal and an uplink reference signal) from the receiving device (e.g., the terminal device in method 200). Since the feedback information or the first signal from the receiving device can be used to eliminate interference signals in the simultaneous data and power transmission signal, the power allocation ratio (i.e., the first power allocation ratio) determined by the network device based on this feedback information or the first signal helps the receiving device to correctly decode the data signal. Furthermore, while ensuring correct decoding of the data signal, wireless charging efficiency can be significantly improved.

[0091] The following two examples illustrate in detail the implementation of determining the power of the data signal and the power of the energy signal in the simultaneous data and energy transmission signal of the transmitting device.

[0092] Example 1

[0093] Figure 6 is an example of how the transmitting side device in this application determines the power allocation ratio of the multiple signals that can be transmitted simultaneously.

[0094] 601. The base station sends a third energy signal w.

[0095] As an example, the base station adds a field (e.g., called the first field) to its downlink control information (DCI) to indicate the index of the third energy signal w. For ease of distinction, this DCI can be referred to as the first DCI. The third energy signal w comes from a signal set that includes one or more energy signals. The energy signals in this signal set can be predefined or preconfigured. In other words, all the energy signals in the signal set are known. Based on the index of the energy signal indicated by the network device, the terminal device can determine which specific energy signal in the signal set the base station is transmitting as the third energy signal.

[0096] As another example, the base station transmits a multi-energy signal (denoted as the transmitted signal s) with a power ratio β = 1 for the energy signal. That is, the transmitted signal s is the third energy signal w, and s = w. After receiving the transmitted signal, the terminal device performs power allocation on it to obtain ρy = ρHw and decodes it to obtain the third energy signal w.

[0097] Through the two examples above, the terminal device can obtain the third energy signal w.

[0098] 602. The terminal device determines the first power allocation ratio threshold (i.e., the second power allocation ratio β) based on its own achievable SINR and the third energy signal w. recom ).

[0099] The terminal device determines the second power allocation ratio β based on its own implementation. recom This indicates that the demodulation threshold of different terminal devices is determined by their respective implementations. Specifically, after obtaining the third energy signal w, which is known, the terminal device, based on its achievable SINR, combines... The second power allocation ratio β can be determined. recom It should be understood that w here refers to the third energy signal w. Since different terminals may achieve different SINR values, the calculated first power allocation ratio threshold may also differ. For example, if terminal A has a high demodulation threshold requirement and a smaller β value obtained through SINR, then the power proportion of the energy signal in the data-energy co-transmission signal sent by the network device to terminal A will also be correspondingly smaller. Conversely, if terminal B has a low demodulation threshold requirement and a larger β value obtained through SINR, then the power proportion of the energy signal in the data-energy co-transmission signal sent by the network device to terminal B will be correspondingly larger. This indicates that when the network device sends data-energy co-transmission signals to terminals A and B, under the condition of equal transmission power, terminal B has higher energy harvesting efficiency.

[0100] In Example 1, the terminal device can calculate the recommended power allocation ratio using its own achievable SINR.

[0101] 603. The terminal device sends first information to the base station, the first information indicating the first power allocation ratio threshold.

[0102] As an example, uplink control information (UCI) includes a new field (e.g., called the second field) that indicates the power allocation ratio β. recom As another example, the terminal device can indicate β by multiplexing CQI. recom The following explanation is based on Tables 1 and 2. Table 1 shows the existing CQI tables.

[0103] Table 1

[0104] An entry can be added to the CQI form to indicate β. recom As shown in Table 2 below.

[0105] Table 2

[0106] It should be noted that Table 2 only shows a few values ​​for the CQI index. The specific values ​​of each item (such as CQI index, modulation scheme, code rate, and spectral efficiency) are only examples, mainly to illustrate the relationship between these values ​​and β. recom A correspondence can be established between them. Based on the correspondence shown in Table 2, the terminal device sends a CQI index to the network device to provide feedback on the channel quality. The CQI index also corresponds to a β value. recom For example, if the CQI index reported by the terminal device is 0, then the corresponding β recom =0; if CQI index = 2, then the corresponding β recom =7%, and so on. In this way, the terminal device feeds back β to the network device. recom .

[0107] 604. Based on the first information, the base station determines the first power allocation ratio β and the corresponding MCS.

[0108] The base station implements a second power allocation ratio β based on its own implementation and the data reported by the terminal device. recom The first power allocation ratio β is determined. It should be noted that the second power allocation ratio reported by the terminal device is the upper limit of the power allocation ratio selectable by the base station, i.e., β. recom The second power allocation ratio is greater than or equal to β. In other words, the second power allocation ratio reported by the terminal device represents its maximum capability to correctly decode the data signal. Therefore, to ensure correct decoding of the data signal, the first power allocation ratio determined by the base station is no higher than the second power allocation ratio.

[0109] Although the receiver (e.g., terminal equipment) can utilize SiC to eliminate the impact of the energy signal on data signal decoding, SINR still decreases as the power allocation ratio β of the transmitter (e.g., base station) increases. In one example, if the base station increases the power of the energy signal to improve transmission efficiency, the final power allocation ratio β used exceeds the power allocation ratio β reported by the terminal equipment. recom This could prevent the terminal device from properly decoding the data signal, sacrificing some communication functionality. In another example, the base station could also choose a power allocation ratio β lower than that reported by the terminal device, based on its own selection. recom The power allocation ratio. In scenarios requiring high communication data transmission efficiency, base stations can choose a lower power allocation ratio β to improve communication signal quality, thereby achieving a higher SINR, higher MCS, higher modulation order, and faster transmission rate.

[0110] During downlink transmission, the base station primarily selects (or determines) the MCS based on the Channel Quality Indicator (CQI) reported by the UE. The UE performs CQI measurement by measuring the SINR obtained from the reference signal transmitted by the base station. For example, in LTE, the reference signal transmitted by the base station can be the cell-specific reference signal (CRS), and in 5G, it can be CSI-RS. The measurement method for CQI is not limited. The selection criterion for CQI can be to quantize the SINR measured by the UE into a CQI sequence of 0 to 15 (e.g., using 4 bits). A higher CQI value indicates better channel quality. The quantization correspondence between CQI and SINR is determined by the terminal equipment manufacturer and is related to the sensitivity of the terminal equipment. Therefore, under the same channel quality conditions, the CQI reported by terminal equipment from different manufacturers may differ. The base station will adjust the CQI reported by the terminal equipment appropriately based on a closed-loop feedback mechanism of block error rate (BLER) to determine the corresponding MCS. As can be seen from the description in step 602, in this embodiment of the application, the terminal device obtains the quantized CQI through SINR and can obtain the recommended power allocation ratio β of the transmitter. recom .

[0111] Considering that the terminal device feeds back CQI to allow the base station to initially select the MCS, and that the purpose of the CQI field is to divide the MCS into 16 possible options (the CQI field has 4 bits, which can represent 16 possible options), then, in a scenario of simultaneous data transmission and communication, as an example, the base station can also use β... recomThe value of β is used to select the MCS. If the 4-bit CQI field is still used, β recom The index value can also be used to indicate a specific power allocation ratio, for example, β. recom index = 0 indicates that β recom =0; β recom index = 1 indicates β recom =6.25%;... Thus, a mapping table similar to Table 3 below can be established.

[0112] Table 3

[0113] It should be understood that the specific values ​​of each item in Table 3 are merely examples, intended to provide an implementation method, namely, establishing β. recom The correspondence between the network device and the MCS allows the network device to receive β feedback from the terminal device. recom To select the MCS. The base station and terminal equipment can each store the correspondence shown in Table 3. Furthermore, the base station can select the MCS based on the β feedback from the terminal equipment. recom Use Table 3 (stored) to select the MCS.

[0114] The above uses the CQI index to indicate β recom , and through β recom Choosing the appropriate MCS implementation method does not increase signaling overhead between the base station and the device. However, in contrast, the terminal device responds to β by adding a field to the UCI (e.g., referred to as the first UCI). recom This method can improve β recom And the flexibility of MCS configuration.

[0115] 605. The base station indicates the first power allocation ratio β to the terminal equipment.

[0116] In one implementation, if the power allocation ratio determined by the base station differs from the power allocation ratio reported by the terminal, the terminal device needs to know the actual power allocation ratio of the transmitter (i.e., the first power allocation ratio β) to perform interference cancellation and improve its decoding performance. Therefore, the base station sends the determined first power allocation ratio β to the terminal device. As an example, the DCI (e.g., referred to as the second DCI) includes a new field indicating the first power allocation ratio β determined by the base station.

[0117] In another implementation, if the power allocation ratio determined by the base station for the transmitter is equal to the power allocation ratio reported by the terminal device, the base station may not issue a new power allocation ratio. For example, if the terminal device transmits at a power allocation ratio β... recomIf no power allocation ratio β is received from the base station within the agreed time period thereafter, it is assumed that the power allocation ratio determined by the base station for the transmitting end is the same as the power allocation ratio reported by the terminal device. Therefore, step 605 is an optional step.

[0118] 606. The base station indicates the MCS corresponding to the first power allocation ratio β to the terminal equipment.

[0119] In step 606, as an example, the base station can indicate to the UE the MCS corresponding to the first power allocation ratio β through the modulation and coding scheme field in the DCI.

[0120] Optionally, the first power allocation ratio β and the corresponding MCS can be indicated in a single signaling (e.g., DCI), or the first power allocation ratio and MCS can be indicated separately by different signaling, without limitation.

[0121] 607. The base station sends a second signal.

[0122] The terminal device receives a second signal from the base station.

[0123] 608. The terminal device decodes and converts the second signal from the base station based on the first power allocation ratio β indicated by the base station and the corresponding MCS.

[0124] In Example 1, the base station first indicates a third energy signal to the UE. Based on this third energy signal and its achievable SINR, the UE calculates a first power allocation ratio threshold. This threshold ensures correct decoding of the data signal by the UE and represents the upper limit of the first power allocation ratio actually used by the base station. The UE feeds back the first power allocation ratio threshold to the base station, allowing the base station to determine the actual first power allocation ratio to be used. Furthermore, the base station instructs the UE on the final determined first power allocation ratio and corresponding MCS (Multi-Signal Classification) information to facilitate interference cancellation, decoding, and energy conversion by the UE.

[0125] Example 2

[0126] Figure 7 is another example of how the transmitting-side device in this application determines the power allocation ratio of the multiple signals that can be transmitted simultaneously.

[0127] 701. The terminal device sends the first energy signal w.

[0128] As an example, a field can be added to the UCI (referred to as the second UCI for clarity) to indicate the index of the first energy signal w. Similar to the third energy signal in Example 1, the first energy signal w can come from a signal set that includes at least one energy signal. The energy signals in this signal set can be predefined or preconfigured, for example, configured in RRC signaling.

[0129] 702. The terminal device sends an uplink reference signal.

[0130] As an example, the uplink reference signal can be SRS.

[0131] 703. The base station determines the first power allocation ratio β based on the first energy signal and SRS.

[0132] Base station measures uplink reference signal to obtain Where s represents the uplink reference signal and n represents noise. Here, the terminal device transmits the uplink reference signal, without considering simultaneous data transmission; therefore, s consists entirely of data signals. In existing technologies, the base station can calculate the SINR based on the received signal Hs+n. pre And according to SINR pre Choose MCS. However, in scenarios involving simultaneous data and energy transmission, it's also necessary to consider the interference of energy signals on data signal decoding, i.e., the actual... Since the first energy signal w is known, according to SINR (i.e., SINR...) pre (1-β times), the first energy signal w and The base station calculates the initial power allocation ratio. Furthermore, the base station selects the MCS based on the SINR. Different β values ​​correspond to different MCS values. The base station makes this decision based on its own implementation requirements for power and data rates.

[0133] 704. The base station determines the MCS corresponding to the first power allocation ratio β.

[0134] 705. The base station indicates the first power allocation ratio β and the corresponding MCS to the terminal equipment.

[0135] For details on the specific implementation of the base station determining the MCS and the base station indicating β and the corresponding MCS to the terminal device, please refer to the relevant explanations in steps 604 to 605 of Example 1, which will not be repeated here.

[0136] 706. The base station sends a second signal.

[0137] The terminal device receives a second signal from the base station, wherein the second signal includes a first data signal and a second energy signal.

[0138] 707. The terminal device decodes and converts the second signal from the base station based on the first power allocation ratio β indicated by the base station and the corresponding MCS.

[0139] In Example 2, the base station calculates the actual first power allocation ratio itself. Specifically, the base station receives the first energy signal and SRS from the UE. The SINR can be calculated based on the SRS measurement. Combined with the first energy signal obtained from the UE, a suitable first power allocation ratio can be calculated to achieve a balance between decoding performance and charging.

[0140] In existing data transmission schemes, the power allocation ratio at the transmitting end is determined by the network side, without considering the different decoding capabilities of each terminal device. In this embodiment, the terminal device calculates a power allocation ratio β that indicates its maximum decoding capability based on its achievable SINR and the energy signal indicated by the network side. recom The signal is fed back to the network side, or the network side determines the appropriate power allocation ratio based on the first signal from the terminal device, which includes the energy signal and the uplink reference signal, thereby achieving a balance between charging efficiency and data signal decoding performance.

[0141] The above is a detailed description of the communication method provided in this application. The following describes the communication device provided in this application.

[0142] In order to realize the functions of the communication device (e.g., terminal device or network device) in the embodiments of this application, the communication device can implement the corresponding functions in the form of hardware and / or software.

[0143] Figure 8 is a schematic structural diagram of a communication device provided in this application. As shown in Figure 8, the communication device 1000 includes a processing module 1001 and a communication module 1002. The communication device 1000 can be a communication device, or a device applied to a communication device and capable of realizing the corresponding functions of the communication device, such as a chip, processor, or circuit. Exemplarily, the communication device can be a terminal device or a network device, as in the method embodiment.

[0144] The communication module can also be a transceiver module, transceiver, transceiver device, or transceiver unit. The processing module can also be a processor, processing board, processing unit, or processing device. Optionally, the communication module is used to execute the sending or receiving operations of the terminal device or network device in any of the method embodiments. The device in the communication module that implements the receiving function can be considered a receiving unit, and the device in the communication module that implements the sending function can be considered a sending unit; that is, the communication module includes a receiving unit and a sending unit. The processing module is used to execute the internal implementation-related operations / processing of the terminal device or network device in any of the method embodiments. The specific operations of each module can be found in the descriptions in the method embodiments and will not be repeated here.

[0145] Alternatively, the communication module and / or processing module can be implemented as virtual modules. For example, the processing module can be implemented as a software functional unit or a virtual device, and the communication module can be implemented as a software function or a virtual device. Alternatively, the processing module or communication module can also be implemented as a physical device. For example, the communication device can be a chip, such as a system-on-chip (SoC), hardware circuitry, etc. The communication module can be an input / output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operation) and output operations (corresponding to the aforementioned sending operation); the processing module can be an integrated circuit or logic circuit, etc.

[0146] The module division in this application is illustrative and represents only one logical functional division. In actual implementation, other division methods are possible. Furthermore, the functional modules in the various examples of this application can be integrated into one module, exist as separate physical entities, or be integrated into one module. The integrated modules described above can be implemented in hardware, as software functional modules, or as a combination of hardware and software functional modules; no limitation is imposed.

[0147] Figure 9 is a schematic structural diagram of another communication device provided in this application. The communication device 1100 can be used to implement the functions of any communication device (e.g., a terminal device or a network device) in the communication system described in the foregoing examples. Optionally, the communication device 1100 can be a chip or a chip system. Optionally, in this application, the chip system can be composed of chips or may include chips and other discrete devices. The communication device 1100 may include at least one processor 1110. Optionally, the processor 1110 (or processing device) is coupled to a memory, which may be located within the communication device, or the memory may be integrated with the processor, or the memory may be located outside the communication device. For example, the communication device 1100 may also include at least one memory 1120. The memory 1120 stores computer programs / instructions or data necessary for implementing any of the above method embodiments; the processor 1110 may execute the computer programs / instructions or data stored in the memory 1120 to complete the corresponding functions of the terminal device or network device in any of the above embodiments.

[0148] Optionally, the communication device 1100 may further include a communication interface 1130, through which the communication device 1100 can interact with other devices. For example, the communication interface 1130 may be a transceiver, circuit, bus, module, pin, or other type of communication interface. When the communication device 1100 is a chip-type device or circuit, the communication interface 1130 in the device 1100 may also be an input / output circuit, capable of inputting information (or receiving information) and / or outputting information (or sending information). The processor may be an integrated circuit or logic circuit, etc., and the processor can determine the output information based on the input information.

[0149] The coupling in this application refers to indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 1110 may operate in conjunction with the memory 1120 and the communication interface 1130. This application does not limit the connection medium between the processor 1110, the memory 1120, and the communication interface 1130.

[0150] Optionally, as shown in Figure 9, the processor 1110, the memory 1120, and the communication interface 1130 are interconnected via a bus 1140. The bus 1140 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one line is used to represent the bus 1140 in Figure 9, but this does not mean that there is only one bus or one type of bus.

[0151] Figure 10 is a schematic structural diagram of the chip provided in this application. The chip 30 includes a circuit 31 and a communication interface 32. The circuit 31 can be a logic circuit, an integrated circuit, etc., and the communication interface 32 can also be called an input / output circuit, input / output interface, interface circuit, etc., which can input information (or receive information) or output information (or send information). The chip 30 can execute the methods executed by the terminal device or network device in the various embodiments of this application.

[0152] In addition, this application also provides a computer-readable storage medium storing computer instructions, which, when executed on a computer, cause operations and / or processes performed by a terminal device or network device in the various method embodiments of this application to be executed.

[0153] This application also provides a computer program product, which includes computer program code or instructions. When the computer program code or instructions are run on a computer, the operations and / or processes performed by a terminal device or network device in the various method embodiments of this application are executed.

[0154] Furthermore, this application also provides a chip including a processor. A memory for storing a computer program is provided independently of the chip, and the processor is used to execute the computer program stored in the memory, so that operations and / or processes performed by a terminal device or network device in any method embodiment are executed. Further, the chip may also include a communication interface. The communication interface may be an input / output interface or an interface circuit, etc. Further, the chip may also include the memory.

[0155] This application provides a communication system, including the terminal device and network device described in the above method embodiments.

[0156] The processor in this application embodiment has signal processing capabilities and can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., capable of implementing or executing the methods, steps, and logic block diagrams disclosed in this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in this application can be directly manifested as being executed by the hardware processor, or executed by a combination of hardware and software modules within the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory; the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above methods.

[0157] In the embodiments of this application, the memory can be volatile memory or non-volatile memory, or it can include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0158] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0159] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0160] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0161] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0162] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0163] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0164] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: Receive a first signal or first information from a terminal device, wherein the first signal includes a first energy signal and an uplink reference signal, and the first information is used to indicate a first power allocation ratio threshold. Based on the first signal or the first information, determine the first power allocation ratio; A second signal is sent, the second signal including a first data signal and a second energy signal, the power of the first data signal and the power of the second energy signal being determined according to the first power allocation ratio.

2. The method according to claim 1, characterized in that, Determining the first power allocation ratio based on the first information includes: Send a third energy signal, which is used by the terminal device to determine the first power allocation ratio threshold; or... Send first downlink control information, the first downlink control information including a first field, the first field indicating an index of a third energy signal, the third energy signal being used by the terminal device to determine the first power allocation ratio threshold.

3. The method according to claim 2, characterized in that, The third energy signal belongs to a signal set, which includes at least one energy signal, and the at least one energy signal is a known signal.

4. The method according to claim 2 or 3, characterized in that, The first information includes first uplink control information, which includes a second field indicating the first power allocation ratio threshold.

5. The method according to claim 1, characterized in that, The receiving of the first signal from the terminal device includes: Receive second uplink control information, the second uplink control information including a third field, the third field indicating the index of the first energy signal; and Receive the uplink reference signal.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes: Based on the first power allocation ratio, the modulation and coding strategy (MCS) is determined.

7. The method according to claim 6, characterized in that, The method further includes: Send a second downlink control message, which indicates the first power allocation ratio and the MCS.

8. A communication method, characterized in that, include: Send a first signal or first information, wherein the first signal includes a first energy signal and an uplink reference signal, and the first information is used to indicate a first power allocation ratio threshold. The system receives a second signal, which includes a first data signal and a second energy signal. The power of the first data signal and the power of the second energy signal are determined according to the first power allocation ratio.

9. The method according to claim 8, characterized in that, Before sending the first information, the method further includes: Receive third energy signal; The first power allocation ratio threshold is determined based on the third energy signal.

10. The method according to claim 8, characterized in that, Before sending the first information, the method further includes: Receive first downlink control information, the first downlink control information including a first field, the first field indicating the index of the third energy signal; The first power allocation ratio threshold is determined based on the third energy signal.

11. The method according to claim 9 or 10, characterized in that, The third energy signal belongs to a signal set, which includes at least one energy signal, and the at least one energy signal is a known signal.

12. The method according to any one of claims 9 to 11, characterized in that, The first information includes first uplink control information, which includes a second field indicating the first power allocation ratio threshold.

13. The method according to claim 8, characterized in that, Sending the first signal includes: Sending second uplink control information, the second uplink control information including a third field, the third field indicating the first energy signal; and... Send the uplink reference signal.

14. The method according to any one of claims 8 to 13, characterized in that, The method further includes: Receive second downlink control information, the second downlink control information indicating the first power allocation ratio and MCS, the MCS being determined based on the first power allocation ratio.

15. A communication device, characterized in that, It includes modules or units for implementing the method as described in any one of claims 1-7; or includes modules or units for implementing the method as described in any one of claims 8-14.

16. A communication device, characterized in that, It includes at least one processor, the at least one processor being configured to execute a computer program or instructions stored in a memory to cause the method of any one of claims 1-7 to be executed; or to cause the method of any one of claims 8-14 to be executed.

17. A chip, characterized in that, The device includes a circuit and a communication interface, wherein the communication interface is used to receive a signal or information to be processed and to send the signal or information to be processed to the circuit; the circuit is used to process the received signal or information so that the method as described in any one of claims 1-7 is executed; or, so that the method as described in any one of claims 8-14 is executed.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1-7; or to perform the method as described in any one of claims 8-14.

19. A computer program product, characterized in that, The computer program product includes a computer program or instructions for performing the method as described in any one of claims 1-7, or the method as described in any one of claims 8-14.

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