Communication method and communication device

Abstract

The invention provides a communication method and a communication device, which can be applied to a data and energy simultaneous transmission scene, a terminal device obtains an energy signal from a network side in advance, and calculates and obtains a power distribution proportion of a data and energy simultaneous transmission signal of a sending end recommended by the terminal device according to an SINR (Signal to Interference plus Noise Ratio) which can be realized by the terminal device; or, the terminal device indicates the energy signal to the network device, and the network device can calculate the power distribution proportion of the sending end by itself through the SINR obtained by measuring the uplink reference signal and the energy signal indicated by the terminal device. According to the power distribution proportion recommended by the terminal equipment or the power distribution proportion determined through calculation of the network equipment, the network equipment can eliminate interference of the energy signals on the data signals, the decoding performance of the data signals is improved, and balance between the energy charging efficiency and the decoding performance is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, and more particularly to a communication method and a communication device in a simultaneous wireless information and power transfer technology. BACKGROUND

[0002] In order to solve the problem that an internet of things (IoT) node has low cost, small size, and cannot carry a large-capacity battery, and faces a short standby life, the industry proposes to use an environmental energy collection method to provide the IoT node with a continuous source of energy. Wireless radio frequency energy is one of the candidate energy sources, and has the advantages of controllable energy size, controllable energy source, and certain penetration and long transmission distance. Since a large number of base stations are deployed in a cellular mobile communication network, the base stations have multiple antennas, can emit arbitrarily designed electromagnetic waves, and provide a directional beam to enhance the radio frequency energy in some directions, frequency bands, and time periods, and can greatly improve the low efficiency of energy transmission. Therefore, wireless energy transmission through a base station is one of the important ways to solve the short battery life of the IoT in the future. However, the resources of the cellular network are limited, and if a large number of resources are used to serve IoT energy charging, the available resources for communication will be greatly limited. For an IoT node, if data can be transmitted at the same time as charging, the resource utilization can be further improved, and therefore, simultaneous wireless information and power transfer (SWIPT) is proposed as an important technical means.

[0003] Existing SWIPT mechanisms include power allocation at the sending end and spatial division multiplexing at the receiving end. It is assumed that the total transmission power of the sending end is P, wherein the transmission power of the wireless data signal is (1-β)P, and the power of the wireless energy signal is βP. In order to increase the efficiency of energy collection, the power allocation ratio β of the energy signal needs to be increased under the premise of ensuring the transmission power. However, the increase of the power allocation ratio β will greatly affect the information decoding at the receiving end, and the decoding performance is poor. SUMMARY

[0004] The present application provides a communication method, which can reduce the decoding interference of the energy signal on the data signal in the SWIPT signal, and improve the decoding performance of the data signal.

[0005] In a first aspect, a communication method is provided, which can be performed by a communication device or a module (e.g., a processor, a chip, or a circuit, etc., which can also be a logical module, hardware and / or software capable of implementing all or part of the functions of the communication device) applied to the communication device. As an example, the communication device can be a transmission-side device of a power-and-data co-transmitted signal, which can be 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, and the first information being used to indicate a first power allocation ratio threshold; determining a first power allocation ratio according to 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, and the power of the first data signal and the power of the second energy signal being determined according to the first power allocation ratio.

[0006] In the technical solution of the present application, before transmitting the power-and-data co-transmitted signal, the transmission-side device calculates a suitable power allocation ratio of the energy signal and the data signal in the power-and-data co-transmitted signal based on the feedback information (e.g., the first information indicating the first power allocation ratio threshold) or the signal (e.g., the first signal including the first energy signal and the uplink reference signal) from the reception-side device, which can eliminate the interference of the energy signal on the data signal, ensure the correct decoding of the data signal in the power-and-data co-transmitted signal by the reception-side device, and improve the decoding performance of the data signal.

[0007] In combination with the first aspect, in some implementations of the first aspect, the determining the first power allocation ratio according to the first information includes: transmitting a third energy signal, the third energy signal being used by the terminal device to determine the first power allocation ratio threshold; or transmitting 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.

[0008] In this implementation, the network device indicates the energy signal to the terminal device, based on which and the SINR that the network device can achieve, the terminal device can determine the first power allocation ratio threshold and feed it back to the network device, so that the network device determines a suitable first power allocation ratio based on the first power allocation ratio threshold. Since the demodulation capabilities of different terminal devices are different, each terminal device feeds back the first power allocation ratio threshold according to its own demodulation capability, and the power-and-data co-transmitted signal transmitted by the network device can balance the charging and decoding performance of each terminal device.

[0009] In some implementations of the first aspect, the third energy signal belongs to a signal set, and the signal set includes at least one energy signal, and the at least one energy signal is a known signal.

[0010] In some implementations of the first aspect, the first information includes first uplink control information, and the first uplink control information includes a second field, and the second field indicates the first power allocation ratio threshold.

[0011] 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.

[0012] In some implementations of the first aspect, the receiving the first signal from the terminal device includes: receiving second uplink control information, and the second uplink control information includes a third field, and the third field indicates an index of the first energy signal; and receiving the uplink reference signal.

[0013] In this implementation, the network device receives the first energy signal and the uplink reference signal, and can calculate the power allocation ratio that helps to improve the decoding performance of the terminal device on the data signal. In this implementation, the terminal device can indicate the index of the first energy signal through a newly added field in the uplink control information, so that the network device knows the first energy signal. The network device can calculate the SINR by measuring the uplink reference signal, and can calculate the first power allocation ratio threshold in combination with the first energy signal. This implementation can be applied to a scenario in which the network device calculates the first power allocation ratio threshold, for example, in the case of weak computing capability of the terminal device, the network device can perform the calculation.

[0014] In some implementations of the first aspect, the method further includes: determining a modulation and coding strategy (MCS) according to the first power allocation ratio.

[0015] In some implementations of the first aspect, the method further includes: sending second downlink control information, and the second downlink control information indicates the first power allocation ratio and the MCS.

[0016] In this implementation, after the network device determines the power allocation ratio of the actual transmitted energy signal according to the calculated first power allocation ratio threshold, the network device indicates the power allocation ratio to the terminal device. The terminal device charges and decodes 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 the decoding performance, and achieve the balance between the data signal decoding and charging.

[0017] In a second aspect, a communication method is provided, which can be performed by a communication device or a module (e.g., a processor, a chip, or a circuit, etc., which can also be a logical module, hardware and / or software capable of implementing all or part of the functions of the communication device) applied to the communication device. As an example, the communication device can be a receiving side device of the power-and-data co-transmitted signal, which can be 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 being used to indicate a first power allocation ratio threshold; and receiving a second signal, the second signal including a first data signal and a second energy signal, a power of the first data signal and a power of the second energy signal being determined according to the first power allocation ratio.

[0018] The technical effects of the method in the second aspect and any implementation form thereof can refer to the related description of the first aspect, and will not be repeated here.

[0019] In combination with the second aspect, in some implementation forms of the second aspect, before the first information is transmitted, the method further includes: receiving a third energy signal; and determining the first power allocation ratio threshold according to the third energy signal.

[0020] In this implementation form, the terminal device receives the third energy signal from the network device, and can determine the first power allocation ratio in combination with the SINR that can be achieved by the terminal device.

[0021] In combination with the second aspect, in some implementation forms of the second aspect, before the first information is transmitted, the method further includes: receiving a 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 the first power allocation ratio threshold according to the third energy signal.

[0022] In this implementation form, the terminal device can obtain the third energy signal based on the first field in the first downlink control information. In combination with the SINR obtained by measuring the uplink reference signal, the terminal device can determine the first power allocation ratio.

[0023] In the above two implementation forms, the terminal device obtains the third energy signal from the base station, and thus the third energy signal is known. In addition, the SINR that can be achieved by the terminal device is known, and the power ratio of the energy signal and the data signal in the power-and-data co-transmitted signal can be solved by substituting the third energy signal into the expression of the SINR. 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 value of the power ratio of the energy signal and the data signal, i.e., the first power allocation ratio threshold, can be calculated.

[0024] In some embodiments of the second aspect, the third energy signal belongs to a signal set, and the signal set includes at least one energy signal, and the at least one energy signal is a known signal.

[0025] In some embodiments of the second aspect, the first information includes first uplink control information, and the first uplink control information includes a second field, and the second field indicates the first power allocation ratio threshold.

[0026] In some embodiments of the second aspect, the sending the first signal includes: sending second uplink control information, and the second uplink control information includes a third field, and the third field indicates the first energy signal; and sending the uplink reference signal.

[0027] In some embodiments of the second aspect, the method further includes: receiving second downlink control information, and the second downlink control information indicates the first power allocation ratio and an MCS, and the MCS is determined based on the first power allocation ratio.

[0028] In a third aspect, a communication apparatus is provided. The communication apparatus has the functions of implementing the method in the first aspect or any of the possible implementation manners of the first aspect. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

[0029] In a fourth aspect, a communication apparatus is provided. The communication apparatus has the functions of implementing the method in the second aspect or any of the possible implementation manners of the second aspect. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

[0030] In a fifth aspect, a communication apparatus is provided, which comprises at least one processor configured to cause the communication apparatus to perform the method in the first aspect or any possible implementation of the first aspect; or perform the method in the second aspect or any possible implementation of the second aspect. Optionally, the at least one processor is coupled with at least one memory for storing computer program or instructions, and the at least one processor is configured to invoke and run the computer program or instructions from the at least one memory, so as to cause the communication apparatus to perform the method in the first aspect or any possible implementation of the first aspect; or perform the method in the second aspect or any possible implementation of the second aspect. Optionally, the at least one processor can be included in the communication apparatus, or can be configured outside the communication apparatus. Optionally, the communication apparatus further comprises the at least one memory. Further optionally, the communication apparatus further comprises a communication interface coupled with the at least one processor, and configured to input information and / or data to the at least one processor, or output information and / or data from the at least one processor. As an example, the communication interface can include an input interface and / or an output interface, or an interface circuit, etc.

[0031] In a sixth aspect, a communication apparatus is provided, which comprises 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; and the circuit is configured to process the signal, so as to perform the method in the first aspect or any possible implementation of the first aspect; or perform the method in the second aspect or any possible implementation of the second aspect. Optionally, the communication interface is further configured to output the signal processed by the circuit. As an example, the communication interface can be a transceiver, a hardware circuit, a bus, a module, a pin, or other types of communication interfaces. The signal includes information and / or data. Optionally, the communication apparatus can be a chip.

[0032] In a seventh aspect, a computer readable storage medium is provided, which stores computer program codes or instructions, when the computer program codes or instructions are run on a computer, the method in the first aspect or any possible implementation of the first aspect is implemented; or the method in the second aspect or any possible implementation of the second aspect is implemented.

[0033] In an eighth aspect, a computer program product is provided, which comprises computer program codes or instructions, when the computer program codes or instructions are run on a computer, the method in the first aspect or any possible implementation of the first aspect is implemented; or the method in the second aspect or any possible implementation of the second aspect is implemented.

[0034] In a ninth aspect, a wireless communication system is provided, comprising the communication apparatus according to the third aspect and the communication apparatus according to the fourth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 An example of a communication system suitable for the technical solution of the present application.

[0036] Figure 2 An example of an ORAN-based system architecture suitable for the embodiments of the present application.

[0037] Figure 3 An example of a mechanism for simultaneous transmission of power and data for the transmitting end and the receiving end.

[0038] Figure 4 An example of a mechanism for SIC decoding.

[0039] Figure 5 An example of a schematic flowchart of a communication method 200 provided by the present application.

[0040] Figure 6 An example of a transmitting device provided by the present application for determining a power allocation ratio of a simultaneous power and data transmission signal.

[0041] Figure 7 Another example of a transmitting device provided by the present application for determining a power allocation ratio of a simultaneous power and data transmission signal.

[0042] Figure 8 An example of a schematic structural diagram of a communication apparatus provided by the present application.

[0043] Figure 9 Another example of a schematic structural diagram of a communication apparatus provided by the present application.

[0044] Figure 10 An example of a schematic structural diagram of a chip provided by the present application. DETAILED DESCRIPTION

[0045] The technical solution of the present application will be described below in conjunction with the accompanying drawings.

[0046] 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.

[0047] 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.

[0048] 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 devices in the embodiments of this application can be mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, 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. Connectivity can be achieved through broadband or narrowband technologies. IoT technology, for example, can use narrowband (NB) technology to achieve massive connectivity, deep coverage, and low power consumption on devices. IoT technologies may include reflective communication, spread spectrum, and ultra-wideband (UWB), which will not be elaborated further.

[0049] 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.

[0050] 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 equipment form used in the network equipment.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] The communication method provided in this application can be applied to a variety of communication scenarios.

[0057] Figure 1 This is an example of a communication system applicable to the technical solutions of this application. Figure 1 In the communication system shown, the communication method provided in this application is applicable to communication between network devices and terminal devices, i.e., uplink communication 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.

[0058] Figure 2 This is a schematic diagram of an ORAN-based system architecture applicable to embodiments of this application. The O-RAN system may include... Figure 2 Other components besides those shown. For example... Figure 2 As shown, the access network equipment (RAN, such as an eNB or gNB or access network equipment in a future communication system) communicates with the core network (CN) through the backhaul link and with the UE through the air interface.

[0059] 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 an 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.

[0060] 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.

[0061] For ease of understanding, the relevant concepts or technologies involved in this application are introduced.

[0062] 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.

[0063] In this application, optionally, the wireless signal used for charging can be at least one of the following:

[0064] 1. A signal used to transmit data, that is, to achieve the function of energy transmission at the same time as communication.

[0065] 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).

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] Existing data transmission mechanisms include power division multiplexing at the transmitting end and space division multiplexing at the receiving end.

[0071] Figure 3 This is a schematic diagram of the data transmission mechanism between the sending and receiving ends. (Example:) Figure 3 The total transmit power of 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 the efficiency of energy harvesting, while keeping the total transmit 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 receiver. Therefore, energy harvesting efficiency and data transmission reliability are contradictory.

[0072] 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.

[0073] The following is combined Figure 4 This section introduces the principles of SIC decoding.

[0074] Figure 4 This is a schematic diagram of SIC decoding. (Example) 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 constant with a mean of 0 and a σ² value. 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.

[0075] 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.

[0076] Furthermore, to increase the likelihood of correct decoding of data symbols, interference should be eliminated as much as possible. Figure 4 In this context, on the one hand, ρn is a random variable following a Gaussian distribution, making it difficult to eliminate its interference 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.

[0077] 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:

[0078]

[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 sThis 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 This 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 transmission signal. In other words, the first power allocation ratio is based on the above... Figure 4 Take β as an example.

[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 preSINR 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 An example of determining the power allocation ratio of multiple simultaneously transmitted signals for the transmitting-side device provided in this application.

[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]

[0105] An entry can be added to the CQI form to indicate β. recom As shown in Table 2 below.

[0106] Table 2

[0107] CQI index β recom ]]> modulation Code rate(*1024) Spectral efficiency 0 0 Out of range 1 5％ QPSK 78 0.1523 2 7％ QPSK 120 0.2344 3 10％ QPSK 193 0.3770 … … … … …

[0108] 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 .

[0109] 604. Based on the first information, the base station determines the first power allocation ratio β and the corresponding MCS.

[0110] 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. recomThe 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.

[0111] 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.

[0112] 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 using the 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 .

[0113] 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... recom The 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.

[0114] Table 3

[0115] β recom index]]> β recom ]]> modulation Code rate(*1024) Spectral efficiency 0 0 Out of range 1 6.25％ QPSK 78 0.1523 2 13％ QPSK 120 0.2344 3 19.25％ QPSK 193 0.3770 … … … … …

[0116] 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.

[0117] 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.

[0118] 605. The base station indicates the first power allocation ratio β to the terminal equipment.

[0119] 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.

[0120] 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 a power allocation ratio β... recom If 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.

[0121] 606. The base station indicates the MCS corresponding to the first power allocation ratio β to the terminal equipment.

[0122] 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.

[0123] 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.

[0124] 607. The base station sends a second signal.

[0125] The terminal device receives a second signal from the base station.

[0126] 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.

[0127] 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.

[0128] Example 2

[0129] Figure 7 Another example of determining the power allocation ratio of multiple simultaneously transmitted signals for the transmitting-side device provided in this application.

[0130] 701. The terminal device sends the first energy signal w.

[0131] 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.

[0132] 702. The terminal device sends an uplink reference signal.

[0133] As an example, the uplink reference signal can be SRS.

[0134] 703. The base station determines the first power allocation ratio β based on the first energy signal and SRS.

[0135] 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.

[0136] 704. The base station determines the MCS corresponding to the first power allocation ratio β.

[0137] 705. The base station indicates the first power allocation ratio β and the corresponding MCS to the terminal equipment.

[0138] 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.

[0139] 706. The base station sends a second signal.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] The above is a detailed description of the communication method provided in this application. The following describes the communication device provided in this application.

[0145] 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.

[0146] Figure 8 This is a schematic structural diagram of a communication device provided in this application. Figure 6 The communication device 1000 includes a processing module 1001 and a communication module 1002. The communication device 1000 can be a communication equipment, or a device applied to a communication equipment and capable of implementing the corresponding functions of the communication equipment, such as a chip, processor, or circuit. For example, the communication equipment can be a terminal device or a network device as described in the method embodiments.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] Figure 9This 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.

[0151] 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.

[0152] 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.

[0153] Optionally, such as Figure 9As shown, 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, Figure 9 The bus 1140 is represented by only one line, but this does not mean that there is only one bus or one type of bus.

[0154] Figure 10 This is a schematic structural diagram of the chip provided in this application. Chip 30 includes circuit 31 and communication interface 32. Circuit 31 can be a logic circuit, integrated circuit, etc., and communication interface 32 can also be called input / output circuit, input / output interface, interface circuit, etc., which can input information (or receive information) or output information (or send information). Chip 30 can execute the methods executed by terminal device or network device in the various embodiments of this application.

[0155] 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.

[0156] 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.

[0157] 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.

[0158] This application provides a communication system, including the terminal device and network device described in the above method embodiments.

[0159] 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.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] 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.

[0164] 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.

[0165] 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.

[0166] 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.

[0167] 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 by comprising: The method comprises: receiving a first signal or first information from a terminal device, the first signal comprising a first energy signal and an uplink reference signal, and the first information being used to indicate a first power allocation ratio threshold; determining a first power allocation ratio according to the first signal or the first information; sending a second signal, the second signal comprising a first data signal and a second energy signal, a power of the first data signal and a power of the second energy signal being determined according to the first power allocation ratio.

2. The method of claim 1, wherein, The determining of the first power allocation ratio according to the first information comprises: 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 comprising 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 of claim 2, wherein, The third energy signal belongs to a signal set, the signal set comprising at least one energy signal, the at least one energy signal being a known signal.

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

5. The method of claim 1, wherein, The receiving of the first signal from the terminal device comprises: receiving second uplink control information, the second uplink control information comprising a third field, the third field indicating an index of the first energy signal; and receiving the uplink reference signal.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: determining a modulation and coding strategy (MCS) according to the first power allocation ratio.

7. The method of claim 6, wherein, The method further comprises: sending second downlink control information, the second downlink control information indicating the first power allocation ratio and the MCS.

8. A communication method characterized by comprising: The method comprises: sending a first signal or first information, the first signal comprising a first energy signal and an uplink reference signal, and the first information being used to indicate a first power allocation ratio threshold; receiving a second signal, the second signal comprising a first data signal and a second energy signal, a power of the first data signal and a power of the second energy signal being determined according to the first power allocation ratio.

9. The method of claim 8, wherein, Before the sending of the first information, the method further comprises: receiving a third energy signal; determining the first power allocation ratio threshold according to the third energy signal.

10. The method of claim 8, wherein, Before the sending of the first information, the method further comprises: receiving first downlink control information, the first downlink control information comprising a first field, the first field indicating an index of a third energy signal; determining the first power allocation ratio threshold according to 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, the signal set comprising at least one energy signal, the at least one energy signal being a known signal.

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

13. The method of claim 8, wherein, The sending of the first signal comprises: transmitting a second uplink control information, the second uplink control information comprising a third field, the third field indicating the first energy signal; and transmitting the uplink reference signal.

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

15. A communications device, characterized by comprising a module or unit for implementing the method according to any one of claims 1-7; or comprising a module or unit for implementing the method according to any one of claims 8-14.

16. A communications device, characterized by comprising at least one processor configured to execute a computer program or instructions stored in a memory, so that the method according to any one of claims 1-7 is executed; or so that the method according to any one of claims 8-14 is executed.

17. A chip, characterized by comprising a circuit and a communication interface, the communication interface being configured to receive a signal or information to be processed and transmit the signal or information to be processed to the circuit; the circuit being configured to process the received signal or information, so that the method according to any one of claims 1-7 is executed; or so that the method according to any one of claims 8-14 is executed.

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

19. A computer program product, characterised in that, The computer program product comprises a computer program or instructions for performing the method according to any one of claims 1-7, or the method according to any one of claims 8-14.

Images