Power determination method and related product

Abstract

The invention discloses a power determination method and a related product. The terminal equipment receives the indication of the network equipment, and the indication is used for indicating that the transmission mode of data scheduling is the high-power mode, so that the terminal equipment can communicate in the high-power mode according to the indication. Therefore, the terminal equipment can flexibly perform high-power transmission.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a power determination method and related products. Background Art

[0002] The communication of terminal equipment needs to meet the requirements of specific absorption rate (SAR), that is, the requirements for human body radiation. Therefore, it is required that the high power sent by the terminal equipment in the uplink will not exceed a certain proportion. At present, high-power terminal equipment is defined on the frequency band of time division duplexing (TDD), but there is no regulation for terminal equipment in frequency division duplexing (FDD). Because the uplink and downlink of FDD are in different frequency bands, the uplink and downlink can be sent at the same time. Since the terminal equipment can continuously send uplink, the decision-making method of TDD will cause the terminal equipment to send power too conservatively. For example, if the observation period of SAR is 6 minutes, the terminal equipment can continuously send uplink for 3 minutes and receive downlink for 3 minutes. If it is in the TDD method, the terminal equipment can only send 50% or less of the uplink proportion every 10ms. Therefore, the network side will not plan the data transmission situation in a long period of time, and the current data transmission will be scheduled according to the current business.

[0003] In view of this, how to flexibly determine the transmission power of the terminal device is a problem that needs to be solved at present. Summary of the invention

[0004] The present application provides a power determination method and related products, so that the transmission power of a terminal device can be flexibly determined.

[0005] In a first aspect, a power determination method is provided, wherein the method is implemented by a terminal device, or a chip or circuit used for the terminal device.

[0006] The method includes: receiving first indication information, the first indication information is used to indicate a power mode for data scheduling, or to indicate a third power level; the power mode includes a first power mode or a second power mode, the first power mode corresponds to a first power level, the second power mode corresponds to a second power level, and the first power level is higher than the second power level; determining a fourth power level according to the first indication information; and sending a first signal at the fourth power level.

[0007] By adopting this method, the terminal device receives an indication from the network device, which is used to indicate the power mode or power level of data scheduling, so that the terminal device can determine the power level and communicate according to the indication. Thus, the terminal device can flexibly determine the transmission power.

[0008] In a possible implementation, the method further includes: sending second indication information, where the second indication information is used to indicate whether the first power mode is supported, or is used to indicate a fifth power level.

[0009] With this implementation, the terminal device can avoid the network device unilaterally scheduling the terminal device to send at high power by reporting the capability, while the terminal device does not support high-power transmission, resulting in scheduling failure; or avoid the network device unilaterally scheduling the terminal device to send in the default second power mode, while the terminal device can actually support high-power transmission, resulting in reduced communication efficiency and reliability. The terminal device can also indicate a specific power level to the network device, so that the network device can more accurately determine the above-mentioned first indication information.

[0010] In another possible implementation, the method also includes: sending first information, wherein the first information includes at least one of the following: a first remaining duration for transmission in the first power mode within a first time period, a second remaining duration that cannot be transmitted in the first power mode within the first time period, and a third remaining duration that cannot be scheduled for uplink transmission within the first time period; the first information is obtained based on proportion information of transmission in the first power mode within the first time period.

[0011] With this implementation, the terminal device itself can precisely count how long the channel or signal has been transmitted in the first power mode in the first time period, so that according to the proportion information of transmission in the first power mode in the first time period, it can obtain: the first remaining time that can still be transmitted in the first power mode in the first time period, or the second remaining time that cannot be transmitted in the first power mode in the first time period, or the third remaining time that cannot be scheduled for uplink transmission in the first time period. By reporting the first information by the terminal device, the high-power transmission of the terminal device can meet the requirements of regulations.

[0012] In yet another possible implementation, the first information is based on a reference high power level.

[0013] With this implementation, by introducing a reference high power level as a normalized parameter for reporting and indication, signaling indications can be unified to a certain extent, reducing signaling overhead.

[0014] In yet another possible implementation, the method further includes: sending third indication information, where the third indication information is used to indicate a step size for adjusting the fourth power level and / or a power margin of the terminal device.

[0015] By adopting this implementation, the terminal device can make the operations of adjusting the power level of the terminal device and the network device consistent by reporting the step size for adjusting the fourth power level and / or the power margin of the terminal device, thereby improving the reliability of data scheduling.

[0016] In another possible implementation, the first indication information is carried in downlink control information or a media access control control element.

[0017] In another possible implementation, the first indication information also includes at least one of the following: the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, the start time and duration of the timer, wherein the timer is used to determine the time for data scheduling based on the first indication information.

[0018] By adopting this implementation, by specifying the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, or the start time and duration of the timer, the operations of adjusting the power level of the terminal device and the network device can be made consistent, thereby improving the reliability of data scheduling.

[0019] In a second aspect, a power determination method is provided, wherein the method is implemented by a network device, or a chip or circuit used for a network device.

[0020] The method includes: sending first indication information, the first indication information is used to indicate the power mode of data scheduling, or to indicate a third power level; the power mode includes a first power mode or a second power mode, the first power mode corresponds to a first power level, the second power mode corresponds to a second power level, and the first power level is higher than the second power level; and receiving a first signal, the first signal is sent at a fourth power level, and the fourth power level is determined based on the first indication information.

[0021] By adopting this method, the network device can send an indication to the terminal device, which is used to indicate the power mode or power level of data scheduling, so that the terminal device can determine the power level according to the indication and communicate. Thus, the terminal device can flexibly determine the transmission power.

[0022] In a possible implementation, the method further includes: receiving second indication information, where the second indication information is used to indicate whether the first power mode is supported, or to indicate a fifth power level; and determining the first indication information according to the second indication information.

[0023] With this implementation, by receiving the capability reported by the terminal device, it is possible to avoid the network device unilaterally scheduling the terminal device to send at high power while the terminal device does not support high power transmission, resulting in scheduling failure; or avoid the network device unilaterally scheduling the terminal device to send at the default second power mode while the terminal device can actually support high power transmission, resulting in reduced communication efficiency and reliability. The terminal device can also indicate a specific power level to the network device, so that the network device can more accurately determine the above-mentioned first indication information.

[0024] In another possible implementation, the method also includes: receiving first information, wherein the first information includes at least one of the following: a first remaining duration for transmission in the first power mode within a first time period, a second remaining duration that cannot be transmitted in the first power mode within the first time period, and a third remaining duration that cannot be scheduled for uplink transmission within the first time period; the first information is obtained based on proportion information of transmission in the first power mode within the first time period; and the first indication information is determined based on the first information.

[0025] With this implementation, the network device receives the first information reported by the terminal device, so that the network device schedules the terminal device to send the power mode or power level indicated by the first indication information, which can meet the requirements of regulations.

[0026] In yet another possible implementation, the first information is based on a reference high power level.

[0027] With this implementation, by introducing a reference high power level as a normalized parameter for reporting and indication, signaling indications can be unified to a certain extent, reducing signaling overhead.

[0028] In another possible implementation, the method further includes: receiving third indication information, wherein the third indication information is used to indicate a step size for adjusting the fourth power level and / or a power margin of the terminal device; and determining the first indication information based on the third indication information.

[0029] By adopting this implementation, by receiving the step size for adjusting the fourth power level and / or the power margin of the terminal device reported by the terminal device, the operations of adjusting the power level of the terminal device and the network device can be made consistent, thereby improving the reliability of data scheduling.

[0030] In another possible implementation, the first indication information is carried in downlink control information or a media access control control element.

[0031] In another possible implementation, the first indication information also includes at least one of the following: the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, the start time and duration of the timer, wherein the timer is used to determine the time for data scheduling based on the first indication information.

[0032] By adopting this implementation, by specifying the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, or the start time and duration of the timer, the operations of adjusting the power level of the terminal device and the network device can be made consistent, thereby improving the reliability of data scheduling.

[0033] In a third aspect, a communication device is provided for implementing the power determination method in the above-mentioned first aspect or any one of the implementations of the first aspect. The device may be a terminal device, or a module (such as a processor, a chip, or a chip system, etc.) applied to a terminal device, or a logical node, a logical module, or software that can implement all or part of the terminal device. In one implementation, the communication device may include a sending unit, a receiving unit, and may also include a processing unit. The sending unit and the receiving unit may be independent or combined together (which may be referred to as a "transceiver unit").

[0034] In a fourth aspect, a communication device is provided for implementing the power determination method in the second aspect or any one of the implementations of the second aspect. The device may be a network device, or a module (such as a processor, a chip, or a chip system, etc.) applied to a network device, or a logical node, a logical module, or software that can implement all or part of the functions of the network device. In one implementation, the communication device may include a sending unit, a receiving unit, and may also include a processing unit. The sending unit and the receiving unit may be independent or combined together (which may be referred to as a "transceiver unit").

[0035] In a possible implementation, the communication device in the third to fourth aspects includes a module for respectively executing the method in any aspect or any implementation of the first or second aspect.

[0036] In which, when the communication device is used to implement the method described in the first aspect or any one of the implementations of the first aspect, the transceiver unit is used to receive first indication information, and the first indication information is used to indicate a power mode for data scheduling, or to indicate a third power level; the power mode includes a first power mode or a second power mode, the first power mode corresponds to a first power level, the second power mode corresponds to a second power level, and the first power level is higher than the second power level; the processing unit is used to determine a fourth power level according to the first indication information; and the transceiver unit is also used to send a first signal at the fourth power level.

[0037] Optionally, the transceiver unit is further used to send second indication information, where the second indication information is used to indicate whether the first power mode is supported, or to indicate the fifth power level.

[0038] Optionally, the transceiver unit is also used to send first information, wherein the first information includes at least one of the following: a first remaining duration for transmission in the first power mode within a first time period, a second remaining duration that cannot be transmitted in the first power mode within the first time period, and a third remaining duration that cannot be scheduled for uplink transmission within the first time period; the first information is obtained based on proportion information of transmission in the first power mode within the first time period.

[0039] Optionally, the first information is based on a reference high power level.

[0040] Optionally, the transceiver unit is further used to send third indication information, where the third indication information is used to indicate the step size for adjusting the fourth power level and / or the power margin of the terminal device.

[0041] Optionally, the first indication information is carried in downlink control information or a media access control control element.

[0042] Optionally, the first indication information also includes at least one of the following: the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, the start time and duration of the timer, wherein the timer is used to determine the time for data scheduling based on the first indication information.

[0043] In which, when the communication device is used to implement the method described in the second aspect or any one of the implementations of the second aspect, the transceiver unit is used to send first indication information, and the first indication information is used to indicate the power mode of data scheduling, or to indicate a third power level; the power mode includes a first power mode or a second power mode, the first power mode corresponds to a first power level, the second power mode corresponds to a second power level, and the first power level is higher than the second power level; and the transceiver unit is also used to receive a first signal, and the first signal is sent at a fourth power level, and the fourth power level is determined based on the first indication information.

[0044] Optionally, the transceiver unit is further used to receive second indication information, where the second indication information is used to indicate whether the first power mode is supported, or to indicate a fifth power level; and the processing unit is used to determine the first indication information based on the second indication information.

[0045] Optionally, the transceiver unit is also used to receive first information, wherein the first information includes at least one of the following: a first remaining duration for transmission in the first power mode within a first time period, a second remaining duration that cannot be transmitted in the first power mode within the first time period, and a third remaining duration that cannot be scheduled for uplink transmission within the first time period; the first information is obtained based on proportion information of transmission in the first power mode within the first time period; and the processing unit is further used to determine the first indication information based on the first information.

[0046] Optionally, the first information is based on a reference high power level.

[0047] Optionally, the transceiver unit is further used to receive third indication information, wherein the third indication information is used to indicate the step size for adjusting the fourth power level and / or the power margin of the terminal device; and the processing unit is further used to determine the first indication information based on the third indication information.

[0048] Optionally, the first indication information is carried in downlink control information or a media access control control element.

[0049] Optionally, the first indication information also includes at least one of the following: the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, the start time and duration of the timer, wherein the timer is used to determine the time for data scheduling based on the first indication information.

[0050] In another possible implementation, the communication device in the third aspect to the fourth aspect includes a processor coupled to a memory; the processor is configured to implement the device to perform the corresponding functions in the power determination method. The memory is used to couple with the processor, which stores the necessary programs (instructions) and / or data for the device. Optionally, the communication device may also include a communication interface for implementing communication between the device and other network elements. Optionally, the memory may be located inside the communication device or outside the communication device.

[0051] In another possible implementation, the communication device in the third to fourth aspects includes a processor and a transceiver, the processor is coupled to the transceiver, and the processor is used to execute a computer program or instruction to control the transceiver to receive and send information; when the processor executes the computer program or instruction, the processor is also used to implement the above method through a logic circuit or execute code instructions. The transceiver may be a transceiver, a transceiver circuit or an input-output interface, which is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor to other communication devices other than the communication device. When the communication device is a chip, the transceiver is a transceiver circuit or an input-output interface.

[0052] When the communication device in the third to fourth aspects is a chip, the sending unit may be an output unit, such as an output circuit or a communication interface; the receiving unit may be an input unit, such as an input circuit or a communication interface. When the communication device is a terminal, the sending unit may be a transmitter or a transmitter; the receiving unit may be a receiver or a receiver.

[0053] In a fifth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed, the methods described in the above aspects are implemented.

[0054] According to a sixth aspect, a computer program product comprising instructions is provided. When the instructions are executed on a communication device, the communication device executes the methods described in the above aspects.

[0055] In a seventh aspect, a communication system is provided, which includes the communication device described in the third aspect and the communication device described in the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 A simplified schematic diagram of a wireless communication system provided by an embodiment of the present application;

[0057] Figure 2a-2c This is a schematic diagram of the application scenario of the satellite-ground fusion network;

[0058] Figure 3 A schematic diagram of a flow chart of a power determination method provided in an embodiment of the present application;

[0059] Figure 4 A schematic diagram of a flow chart of another power determination method provided in an embodiment of the present application;

[0060] Figure 5 A schematic diagram of data scheduling for an example of an embodiment of the present application;

[0061] Figure 6 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0062] Figure 7 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0063] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0064] The technology provided by the present application can be applied to various communication systems. For example, the communication system can be a fourth generation (4 th generation, 4G) communication systems (such as long term evolution (LTE) systems), fifth generation (5 th The 5G generation communication system, the worldwide interoperability for microwave access (WiMAX), the wireless local area network (WLAN) system, the fusion system of multiple systems, or the future communication system, such as the sixth generation (6 th generation, 6G) communication system, etc. Among them, the 5G communication system can also be called a new radio (NR) system.

[0065] A network element in a communication system can send a signal to another network element or receive a signal from another network element. The signal may include information, signaling, or data, etc. The network element may also be replaced by an entity, a network entity, a device, a terminal device, a communication module, a node, a communication node, etc. The network element is used as an example for description in this application. For example, a communication system may include at least one terminal device and at least one access network device. The access network device may send a downlink signal to the terminal device, and / or the terminal device may send an uplink signal to the access network device. In addition, it can be understood that if a plurality of terminal devices are included in the communication system, the plurality of terminal devices may also send signals to each other, that is, the signal sending network element and the signal receiving network element may both be terminal devices.

[0066] The power determination method provided in the embodiment of the present application can be applied to wireless communication systems such as 5G, 6G, and satellite communication. Figure 1 , Figure 1 A simplified schematic diagram of a wireless communication system provided in an embodiment of the present application. Figure 1 As shown, the wireless communication system includes a radio access network (RAN) 100. The radio access network 100 may be a next generation (e.g., 6G or higher) radio access network, or a traditional (e.g., 5G, 4G) radio access network. One or more terminal devices (120a-120g, collectively referred to as 120) may be connected to each other, or to one or more network devices (110a-110c, collectively referred to as 110) in the radio access network 100, and the connection may be wired or wireless. Optionally, Figure 1 This is just a schematic diagram. The wireless communication system may also include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices. Figure 1 Not drawn in.

[0067] Optionally, in practical applications, the wireless communication system may include multiple network devices (also referred to as access network devices) at the same time, and may also include multiple terminal devices at the same time. A network device may serve one or more terminal devices at the same time. A terminal device may also access one or more network devices at the same time. The embodiment of the present application does not limit the number of terminal devices and network devices included in the wireless communication system.

[0068] The network device may be an entity on the network side for transmitting or receiving signals. The network device may be an access device for a terminal device to access the wireless communication system in a wireless manner, such as a base station. The base station can broadly cover the following various names, or be replaced with the following names, such as: RAN node, NodeB, evolved NodeB (eNB), next generation NodeB (gNB), access network equipment in open radio access network (O-RAN), relay station, access point, transmission point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), master eNB (MeNB), secondary eNB (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, building baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), centralized unit (CU), distributed unit (DU), radio unit (radio) The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The network device may also refer to a communication module, a modem or a chip that is arranged in the aforementioned device or apparatus. The network device may also be a mobile switching center and a device that performs the base station function in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network side device in a 6G network, and a device that performs the base station function in a future communication system. The network device may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0069] The network equipment may be fixed or mobile. For example, the base stations 110 b and 110 c are stationary and are responsible for wireless transmission and reception in one or more cells from the terminal equipment 120 . Figure 1 The helicopter or drone 120c shown in the figure can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station 120c. In other examples, the helicopter or drone (120c) can be configured to be used as a terminal device communicating with the satellite base station 110a.

[0070] In the present application, the communication device used to implement the above access network function can be an access network device, or a network device with some functions of accessing the network, or a device capable of supporting the implementation of the access network function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module, which can be installed in the access network device or used in combination with the access network device. In the method of the present application, the communication device used to implement the access network device function is an access network device for example.

[0071] The terminal device can be an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can be used to connect people, objects and machines. The terminal device can communicate with one or more core networks through a network device. The terminal device includes a handheld device with a wireless connection function, other processing devices connected to a wireless modem, or a vehicle-mounted device. The terminal device can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device. The terminal device 120 can be widely used in various scenarios, such as cellular communication, D2D, V2X, point-to-point (P2P), machine-to-machine (M2M), machine type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, drone, robot, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery and mobility, etc.Some examples of the terminal device 120 are: user equipment (UE) of 3GPP standard, fixed equipment, mobile equipment, handheld equipment, wearable equipment, cellular phone, smart phone, session initiation protocol (SIP) phone, laptop, personal computer, smart book, vehicle, satellite, global positioning system (GPS) equipment, target tracking equipment, drone, helicopter, aircraft, ship, remote control equipment, smart home equipment, industrial equipment, personal communication service (PCS) phone, wireless local loop (WLL) station, personal digital assistant (PDA), wireless network camera, tablet computer, PDA, mobile internet device (MID), wearable equipment such as smart watch, VR equipment, AR equipment, wireless terminal in industrial control, terminal in vehicle networking system, wireless terminal in self driving, wireless terminal in smart grid, wireless terminal in transportation safety, smart city, etc. The terminal device 120 may be a wireless terminal in a smart city, such as a smart gas pump, a terminal device on a high-speed rail, and a wireless terminal in a smart home, such as a smart speaker, a smart coffee machine, a smart printer, etc. The terminal device 120 may be a wireless device in the above various scenarios or a device used to be set in a wireless device, for example, a communication module, a modem or a chip in the above device. The terminal device may also be referred to as a terminal, a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device may also be a terminal device in a future wireless communication system. The terminal device may be used in a dedicated network device or a general device. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0072] Optionally, the terminal device may be used to act as a base station. For example, the UE may act as a scheduling entity that provides sidelink signals between UEs in V2X, D2D, or P2P, etc. Figure 1As shown, the cell phone 120a and the car 120b communicate with each other using a sidelink signal. The cell phone 120a and the smart home device 120e communicate with each other without relaying the communication signal through the base station 110b.

[0073] In the present application, the communication device for realizing the functions of the terminal device may be a terminal device, or a terminal device having some functions of the above terminal devices, or a device capable of supporting the functions of the above terminal devices, such as a chip system, which may be installed in the terminal device or used in combination with the terminal device. In the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices. In the technical solution provided in the present application, the communication device is described as a terminal device or UE as an example.

[0074] Optionally, a wireless communication system is usually composed of cells, and the base station provides management of the cell. The base station provides communication services to multiple mobile stations (MS) in the cell. The base station includes a baseband unit (BBU) and a remote radio unit (RRU). The BBU and RRU can be placed in different places, for example: the RRU is remote and placed in an area with high traffic volume, and the BBU is placed in a central computer room. The BBU and RRU can also be placed in the same computer room. The BBU and RRU can also be different components under one rack. Optionally, a cell can correspond to a carrier or a component carrier.

[0075] In some deployments, the network device mentioned in the embodiments of the present application may include a CU, or a DU, or a device including a CU and a DU, or a device including a CU-CP, a CU-UP, and a DU node. For example, the network device may include a gNB-CU-CP, a gNB-CU-UP, and a gNB-DU.

[0076] In some deployments, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, and different RAN nodes implement part of the functions of the base station. For example, the RAN node can be a CU, DU, CU-CP, CU-UP, or RU. The CU and DU can be set separately, or can also be included in the same network element, such as a BBU. The RU can be included in a radio frequency device or a radio frequency unit, such as an RRU, AAU, or RRH.

[0077] The RAN node may support one or more types of fronthaul interfaces, and different fronthaul interfaces correspond to DUs and RUs with different functions. If the fronthaul interface between the DU and the RU is a common public radio interface (CPRI), the DU is configured to implement one or more baseband functions, and the RU is configured to implement one or more radio frequency functions. If the fronthaul interface between the DU and the RU is another interface, relative to the CPRI, part of the downlink and / or uplink baseband functions, such as, for downlink, one or more of precoding, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / adding cyclic prefix (CP), are moved from the DU to the RU for implementation, and for uplink, one or more of digital beamforming (BF), or fast Fourier transform (FFT) / removing CP, are moved from the DU to the RU for implementation. In a possible implementation, the interface may be an enhanced common public radio interface (eCPRI). In the eCPRI architecture, the division between DU and RU is different, corresponding to different types (category, Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, F.

[0078] Taking eCPRI Cat A as an example, for downlink transmission, based on layer mapping, the DU is configured to implement one or more functions before layer mapping (i.e., one or more functions of coding, rate matching, scrambling, modulation, and layer mapping), while other functions after layer mapping (e.g., one or more functions of RE mapping, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / adding cyclic prefix (CP)) are moved to the RU for implementation. For uplink transmission, based on de-RE mapping, the DU is configured to implement one or more functions before de-mapping (i.e., one or more functions of decoding, de-rate matching, de-scrambling, demodulation, inverse discrete Fourier transform (IDFT), channel equalization, and de-RE mapping), while other functions after de-mapping (e.g., one or more functions of digital BF or FFT / CP removal) are moved to the RU for implementation. It can be understood that for the functional description of DU and RU corresponding to various types of eCPRI, reference can be made to the eCPRI protocol and will not be repeated here.

[0079] In one possible design, the processing unit for implementing the baseband function in the BBU is called a baseband high layer (BBH) unit, and the processing unit for implementing the baseband function in the RRU / AAU / RRH is called a baseband low layer (BBL) unit.

[0080] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. Any unit in the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0081] In the embodiments of the present application, the device for realizing the function of the network device may be a network device; or it may be a device capable of supporting the network device to realize the function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module. The device may be installed in the network device or used in combination with the network device. In the embodiments of the present application, only the device for realizing the function of the network device is a network device as an example for explanation, and the scheme of the embodiments of the present application is not limited.

[0082] It can be understood that the present application can be applied between network devices and terminal devices.

[0083] The communication between the network device and the terminal device follows a certain protocol layer structure. The protocol layer structure may include a control plane protocol layer structure and a user plane protocol layer structure. For example, the control plane protocol layer structure may include the functions of the protocol layers such as the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the medium access control (MAC) layer and the physical layer. For example, the user plane protocol layer structure may include the functions of the protocol layers such as the PDCP layer, the RLC layer, the MAC layer and the physical layer. In a possible implementation, the service data adaptation protocol (SDAP) layer may also be included above the PDCP layer.

[0084] Optionally, the protocol layer structure between the network device and the terminal device may also include an artificial intelligence (AI) layer for transmitting data related to AI functions.

[0085] Taking data transmission between network devices and terminal devices as an example, data transmission needs to pass through the user plane protocol layer, such as the SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer. Among them, the SDAP layer, PDCP layer, RLC layer, MAC layer, and physical layer can also be collectively referred to as the access layer. According to the transmission direction of the data, it is divided into sending or receiving, and each of the above layers is divided into a sending part and a receiving part. Taking downlink data transmission as an example, after the PDCP layer obtains data from the upper layer, it transmits the data to the RLC layer and the MAC layer, and then the MAC layer generates a transmission block, and then transmits it wirelessly through the physical layer. The data is encapsulated accordingly in each layer. For example, the data received by a layer from the upper layer of the layer is regarded as the service data unit (SDU) of the layer, which becomes a protocol data unit (PDU) after being encapsulated by the layer, and then passed to the next layer.

[0086] Exemplarily, the terminal device may also have an application layer and a non-access layer. The application layer may be used to provide services to applications installed in the terminal device. For example, downlink data received by the terminal device may be sequentially transmitted from the physical layer to the application layer, and then provided to the application by the application layer; for another example, the application layer may obtain data generated by the application, and sequentially transmit the data to the physical layer and send it to other communication devices. The non-access layer may be used to forward user data, such as forwarding uplink data received from the application layer to the SDAP layer, or forwarding downlink data received from the SDAP layer to the application layer.

[0087] It should be understood that Figure 1 The number and type of each device in the communication system shown are for illustration only, and the present application is not limited thereto. In actual applications, the communication system may also include more terminal devices, more access network devices, and other network elements, such as core network devices, and / or network elements for implementing artificial intelligence functions.

[0088] It is understandable that all or part of the functions implemented by one or more of the terminal equipment, access network equipment, core network equipment, or network elements used to implement artificial intelligence functions can be virtualized, that is, implemented by one or more of the proprietary processors or general-purpose processors and the corresponding software modules. Among them, the terminal equipment and the access network equipment involve interfaces for air interface transmission, and the transceiver functions of the interfaces can be implemented by hardware. Core network equipment, such as operation administration and maintenance (OAM) network elements, can be virtualized. Optionally, one or more functions of the virtualized terminal equipment, access network equipment, core network equipment, or network elements used to implement artificial intelligence functions can be implemented by cloud devices, such as cloud devices in over the top (OTT) systems.

[0089] Satellite communications have their own unique advantages over ground communications, such as providing a wider coverage area; satellite base stations are not easily damaged by natural disasters or external forces. If satellite communications are introduced into 5G communications in the future, communication services can be provided to areas that cannot be covered by ground communication networks, such as oceans and forests; the reliability of 5G communications can be enhanced, such as providing better communication services to users on airplanes, trains and other transportation vehicles; more data transmission resources can be provided for 5G communications, and the network speed can be increased. Therefore, supporting communications with both the ground and satellites at the same time is an inevitable trend for future 5G communications, which has relatively large benefits in terms of wide coverage, reliability, multiple connections, and high throughput.

[0090] like Figure 2a-2cThe figure shows a schematic diagram of the application scenario of the satellite-ground integrated network. The terminal equipment on the ground can access the network through the air interface (the air interface can be various types of air interfaces, such as 5G air interface). Figure 2a In the , base station can be deployed on the ground and connected to the ground station that communicates with the satellite; Figure 2b In the IEEE 802.11ac standard, base stations can be deployed on satellites. Satellites are connected to ground stations via wireless links. Ground stations and ground base stations are connected to the core network via wired or wireless links. There can be wireless links between satellites. If the satellite only has transparent forwarding functions (i.e. the corresponding base stations are deployed on the ground), only transparent forwarding is implemented between satellites. If the base station or part of the base station functions are deployed on the satellite, the satellites can complete the signaling interaction between base stations and user data transmission. Figure 2c shown.

[0091] Satellite communication, as a communication scenario of 5G communication, is called non-terrestrial network (NTN). It can not only support various types of 5G terminal devices, but also support IoT type terminal devices.

[0092] Since satellite base stations are far away and move fast, ground-based terminal equipment should communicate with satellite base stations in high-power mode to improve communication reliability.

[0093] However, the communication of terminal devices needs to meet the SAR requirements, that is, the requirements for human body radiation. Currently, a relatively strict process is stipulated to ensure that the high-power uplink transmission of terminal devices does not exceed a certain proportion. For terminal devices that communicate in high-power mode, they also need to follow the power fallback, that is, when the conditions are not met, they can only use the default 23dBm power to transmit. For example, network devices can be configured with the maximum transmit power. Whether the proportion of uplink transmission exceeds the threshold during the current configuration period, these conditions will constrain the transmit power of terminal devices.

[0094] Currently, the high power levels supported by terminal equipment are defined in the TDD frequency band as shown in Table 1:

[0095] Table 1

[0096]

[0097] As shown in Table 1, the high power level supported by the terminal equipment is defined on the TDD frequency band (transmitting power higher than 23dBm), but there is no provision for the high power level supported by the terminal equipment communicating on the FDD frequency band. The so-called TDD means that the uplink and downlink are on the same frequency and time-division. Since the uplink and downlink of FDD are in different frequency bands, the uplink and downlink can be sent at the same time. The power adjustment based on TDD is based on the TDD ratio, that is, TDD periodically configures the first 5ms as uplink and the last 5ms as downlink reception according to a certain period (such as 10ms). Due to the periodicity of the TDD frame structure, the uplink accounts for 50% in each period. If the SAR requirement is that the terminal equipment can send at a high power of 26dbm when the uplink account does not exceed 50% in 50% of the time, then as long as the network equipment fixes the ratio, the terminal equipment can meet the SAR requirement by sending uplink at 26dbm. In FDD communication, since the terminal equipment can continuously send uplink, the decision-making method of TDD will cause the terminal equipment's transmission power to be too conservative. For example, if the SAR observation period is 6 minutes, the terminal device can continuously send uplink for 3 minutes and receive downlink for 3 minutes. If it is in TDD mode, the terminal device can only send 50% or less of the uplink every 10ms. Therefore, the network equipment will not plan the data transmission for a long period of time, but will schedule the current data transmission according to the current business.

[0098] In summary, how can we flexibly determine the transmit power of a terminal device?

[0099] To this end, the present application provides a power determination method, whereby a network device can send an indication to a terminal device, the indication being used to indicate a power mode or power level for data scheduling, so that the terminal device can determine the power level and communicate according to the indication. Thus, the terminal device can flexibly determine the transmission power.

[0100] like Figure 3 FIG. 1 is a flow chart of a power determination method provided in an embodiment of the present application. Exemplarily, the method may include the following steps:

[0101] S301. The network device sends first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information.

[0102] In this embodiment, when scheduling a terminal device for uplink transmission, the network device may indicate a power mode or power level for data scheduling. For example, the network device sends a first indication message to the terminal device, wherein the first indication message is used to indicate a power mode for data scheduling, or to indicate a third power level. The power mode includes a first power mode or a second power mode. Among them, the first power mode corresponds to a first power level, and the second power mode corresponds to a second power level. The first power level is higher than the second power level. The second power level may also be referred to as a default power level. For example, the power corresponding to the second power level is 23dBm. That is, the network device may schedule the terminal device to transmit at high power, or schedule the terminal device to transmit based on a default power level. During scheduling, the power mode may be indicated, or a specific power level may be indicated.

[0103] In one example, the first indication information may be carried in downlink control information (DCI). DCI is physical layer information, so that the network device can dynamically indicate the power mode or power level of the terminal device for communication.

[0104] In another example, the first indication information may also be carried in a medium access control element (MAC CE). MAC CE is MAC layer information, and using MAC CE to carry the first indication information can reduce the impact on the DCI format.

[0105] S302. The terminal device determines a fourth power level according to the first indication information.

[0106] After receiving the first indication information, the terminal device determines the fourth power level according to the first indication information.

[0107] In one example, the first indication information is used to indicate a power mode for data scheduling.

[0108] For example, the first indication information is used to indicate that the power mode of data scheduling is the first power mode, and the network device can pre-agree with the terminal device, or the protocol pre-defines, or the network device pre-configures the power of the first power level corresponding to the first power mode, for example, the power of the first power level is 26dBm, then the terminal device receives the first indication information, and can determine that the power corresponding to the fourth power level is 26dBm. For another example, the power mode is the first power mode, and the network device can pre-agree with the terminal device, or the protocol pre-defines, or the network device pre-configures the power of the first power level corresponding to the first power mode, for example, the power of the first power level is greater than or equal to 26dBm, then the terminal device receives the first indication information, and can determine that the power corresponding to the fourth power level is 29dBm according to its own situation.

[0109] For example, the first indication information is used to indicate that the power mode of data scheduling is the second power mode, and the second power level corresponding to the second power mode is the default, that is, it is pre-agreed upon by the network device and the terminal device, or pre-defined by the protocol, or pre-configured by the network device, so that when the terminal device receives the first indication information, it can determine that the power corresponding to the fourth power level is 23dBm.

[0110] In another example, the first indication information is used to indicate a third power level. The terminal device can determine, based on the first indication information, the third power level indicated by the network device as the fourth power level, that is, the fourth power level is the same as the third power level; or, after the terminal device receives the third power level indicated by the network device, it can determine the fourth power level according to its own situation, for example, the fourth power level is higher than the third power level, or the fourth power level is lower than the third power level.

[0111] S303. The terminal device sends a first signal at the fourth power level to the network device. Correspondingly, the network device receives the first signal sent by the terminal device at the fourth power level.

[0112] After the terminal device determines the fourth power level, it sends a first signal to the network device at the fourth power level. The first signal can be an uplink channel or signal, for example, a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), a sounding reference signal (SRS), etc.

[0113] Thus, the terminal device can flexibly determine the transmission power according to the instructions of the network device.

[0114] According to a power determination method provided in an embodiment of the present application, a network device may send an indication to a terminal device, the indication being used to indicate a power mode or power level for data scheduling, so that the terminal device may determine the power level according to the indication and communicate. Thus, the terminal device may flexibly determine the transmission power.

[0115] The above embodiment describes that the terminal device can flexibly determine the transmission power according to the instruction of the network device. The following embodiment will further describe how the network device determines the transmission power of the terminal device.

[0116] like Figure 4 FIG. 1 is a flow chart of another power determination method provided in an embodiment of the present application. Exemplarily, the method may include the following steps:

[0117] S401a. The terminal device sends second indication information to the network device. Correspondingly, the network device receives the second indication information.

[0118] When or after the terminal device accesses the network, it can report to the network device whether it supports the first power mode and / or the highest power level supported. For example, the terminal device sends a second indication information to the network device, wherein the second indication information is used to indicate whether the first power mode is supported and / or to indicate the fifth power level. The first power mode corresponds to the first power level. The fifth power level is the highest power level supported by the terminal device.

[0119] By having the terminal device report this capability, it is possible to avoid the network device unilaterally scheduling the terminal device to transmit at high power while the terminal device does not support high-power transmission, resulting in scheduling failure; or to avoid the network device unilaterally scheduling the terminal device to transmit in the default mode while the terminal device can actually support high-power transmission, thereby reducing communication efficiency and reliability.

[0120] S401b. The terminal device sends a third indication information to the network device. Accordingly, the network device receives the third indication information. The third indication information is used to indicate the step size of adjusting the power level (i.e., the fourth power level) indicated when the network device schedules data transmission. For example, the terminal device can report the step size of the power that can be adjusted at present, for example, the terminal device can adjust the transmission power level according to the step size of 1dB, 2dB, and 3dB.

[0121] Alternatively, the third indication information may also include the power headroom of the terminal device. The power headroom of the terminal device refers to the difference between the power of the signal currently sent by the terminal device and the maximum transmission power configured by the network device.

[0122] S401c. The terminal device sends first information to the network device. Correspondingly, the network device receives the first information.

[0123] The network device can schedule the terminal device to perform high-power transmission. However, the network device will not always schedule the terminal device to perform high-power transmission. However, the network device will not precisely count how long the terminal device performs high-power transmission in a time period.

[0124] In this embodiment, the terminal device itself can accurately count how long the channel or signal is sent in the first power mode within the first time period, and thus can obtain, based on the proportion information of transmission in the first power mode within the first time period: the first remaining time during which transmission in the first power mode can be performed within the first time period, or the second remaining time during which transmission in the first power mode cannot be performed within the first time period, or the third remaining time during which uplink transmission cannot be scheduled within the first time period.

[0125] Thus, the terminal device can send the first information to the network device. The first information includes at least one of the following: a first remaining duration of transmission in the first power mode in the first time period, a second remaining duration that cannot be transmitted in the first power mode in the first time period, and a third remaining duration that cannot be scheduled for uplink transmission in the first time period. The first information is obtained based on the proportion information of transmission in the first power mode in the first time period.

[0126] Exemplarily, the starting point, duration, and end point of the first time period may be configured by the network device. For example, the starting point of the first time period may be the moment when the terminal device receives the first data scheduling. The terminal device may use the default power mode to send before receiving the first data scheduling. For another example, the starting point of the first time period may be after the terminal device completes the random access process, or when the random access is initiated.

[0127] It can be understood that the first information obtained by the terminal device meets the SAR requirement. Therefore, by reporting the first information by the terminal device, the high-power transmission of the terminal device can meet the regulatory requirements.

[0128] It is understandable that the terminal device sends the first information to the network device periodically, or each time after receiving the data scheduling of the network device, or the network device requests to send, or the cumulative time of the terminal device sending at a high power level in the first time period reaches a certain threshold, etc. This application does not limit this. Therefore, this embodiment does not limit the execution order of the above step S401c and subsequent steps.

[0129] It can be understood that during the implementation process, one or more of the above steps S401a, S401b and S401c can be performed.

[0130] S402. The network device determines the first indication information according to at least one of the second indication information, the third indication information or the first information.

[0131] In the above step S401a, the terminal device sends the second indication information to the network device. After receiving the second indication information, the network device can learn whether the terminal device supports high-power transmission and / or the highest power level supported. Thus, when scheduling the terminal device for uplink transmission, the network device can determine the power mode or power level of data scheduling for the terminal device according to the second indication information. If the second indication information is used to indicate that the terminal device supports the first power mode, the network device can determine that the power mode of data scheduling is the first power mode; if the second indication information is used to indicate that the terminal device does not support the first power mode, the network device can determine that the power mode of data scheduling is the second power mode; if the second indication information is used to indicate the fifth power level, the network device can determine the third power level according to the highest power level and its own resource conditions, and the third power level can be lower than or equal to the fifth power level. Thus, the network device can determine the first indication information, wherein the first indication information is used to indicate the power mode of data scheduling, or to indicate the third power level.

[0132] In the above step S401b, the terminal device sends the third indication information to the network device, and the third indication information is used to indicate the step size of adjusting the power level (i.e., the fourth power level) indicated by the network device. After receiving the third indication information, the network device can determine the granularity and amount of adjustment according to the capabilities of the terminal device, that is, adjust the step size of the power level for data scheduling according to the third indication information. The network device can determine the power mode or power level of data scheduling according to the third indication information, thereby determining the first indication information. This method can make the terminal device and the network device adjust the power level consistent, thereby improving the reliability of data scheduling.

[0133] Alternatively, the third indication information may also include the power margin of the terminal device. After receiving the power margin reported by the terminal device, the network device may determine whether the power level of the terminal device can be further increased during the next data scheduling. When determining the power mode or power level of data scheduling, the network device refers to the power margin of the terminal device and considers whether to change the power mode of the terminal device, increase or decrease the power level of the terminal device. Thus, the first indication information may be determined.

[0134] In the above step S401c, after receiving the first information, the network device can schedule data according to the first information, that is, according to the first remaining time that can still be transmitted in the first power mode in the first time period, or the second remaining time that cannot be transmitted in the first power mode in the first time period, or the third remaining time that cannot schedule uplink transmission in the first time period, determine the power mode or power level for data scheduling for the terminal device. Thus, the first indication information can be determined.

[0135] Exemplarily, the first information is based on a reference high power level. That is, the terminal device obtains the first information based on the reference high power level. For example, the first remaining duration that can be transmitted in the first power mode within the first time period is calculated based on the reference high power level, or the second remaining duration that cannot be transmitted in the first power mode within the first time period is calculated based on the reference high power level, or the third remaining duration that cannot be scheduled for uplink transmission within the first time period is calculated based on the reference high power level. After receiving the first information, the network device can directly schedule the data according to the first information; or the first information can be converted into other levels of power for scheduling. For example, the first remaining duration is calculated based on the reference high power level (for example, 26dBm), and the terminal device reports that the first remaining duration that can be transmitted within 10 minutes at the reference high power level is 2 minutes, and the remaining time cannot send uplink, which means that the terminal device can still transmit at 29dBm within 10 minutes. The remaining time is 1 minute. By introducing the reference high power level as a normalized parameter for reporting and indication, signaling indications can be unified to a certain extent and signaling overhead can be reduced.

[0136] like Figure 5 As shown, it is a schematic diagram of data scheduling of an example of an embodiment of the present application, and the network device schedules the terminal device to perform uplink transmission at a certain power level by sending DCI on the physical downlink control channel (PDCCH). For example, the network device schedules the terminal device to perform uplink transmission at power level c at the first moment; the network device schedules the terminal device to perform uplink transmission at power level b at the second moment; and the network device schedules the terminal device to perform uplink transmission at power level a at the third moment. Exemplarily, power level a>power level b>power level c. For example, power level a is 29dBm, power level b is 26dBm, and power level c is 23dBm. It can be understood that the higher the power level adopted by the terminal device, the larger the data that can be transmitted. The terminal device obtains the above-mentioned first information and reports the first information to the network device. After receiving the first information, the network device can resume scheduling the terminal device to perform uplink transmission at power level c, for example, by knowing the first remaining duration of the transmission of the terminal device in the first power mode within the first time period.

[0137] In addition, the network device allocates different data transmission resources and transmission methods (such as the number of repetitions) according to the power mode or power level of the indicated data scheduling, which can avoid resource waste and improve resource utilization.

[0138] For example, if the current data scheduling transmission mode is the above-mentioned first power mode, the network device expects the terminal device to use a high power mode to send an uplink channel or signal, and correspondingly, the scheduled resources and repetition times will be less.

[0139] For another example, if the current data scheduling transmission mode is the second power mode, the network device configures the scheduled resources and the number of repetitions according to the normal default mode. S403. The network device sends the first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information.

[0140] After the network device determines the first indication information, it can send the first indication information to the terminal device when scheduling the terminal device to perform uplink transmission.

[0141] In one implementation, the first indication information may be carried in DCI.

[0142] For example, when DCI is used to indicate the third power level, when the value of DCI is "0", the terminal device sends the uplink channel or signal at the default level; when the value of DCI is "1", the terminal device sends the uplink channel or signal at a power level of 26dBm; and so on. In this example, relative to the second power level, the step size of the power level adjustment determined by the network device and the terminal device is 3dBm.

[0143] By having the terminal device report its own capabilities and the network device indicating the data scheduling transmission mode of the terminal device through DCI, it is possible to flexibly and precisely determine the power level at which the terminal device sends each time data is scheduled to be sent, thereby improving the flexibility of power adjustment.

[0144] In another implementation, the first indication information may be carried in a MAC CE. Using a MAC CE to indicate a transmission mode of data scheduling may reduce the impact on a DCI format.

[0145] The first power mode indicated by the MAC CE is valid for a certain period of time. Therefore, in this embodiment, the MAC CE also includes at least one of the following: the effective time of the first power level, the effective duration of the first power level, the start time and duration of the timer, wherein data scheduling is performed based on the first power mode during the duration of the timer. This is different from the transmission mode of data scheduling indicated by DCI.

[0146] Among them, if the MAC CE includes the effective time of the first power level indicated by the MAC CE, the first power level will take effect within a certain period of time starting from the effective time. The effective duration of the first power level can be predefined by the protocol, or pre-configured by the network device through RRC signaling, or indicated by the terminal device.

[0147] If the MAC CE includes the validity period of the first power level indicated by the MAC CE, the first power level can be effective within the validity period starting from when the terminal device receives the MAC CE.

[0148] If the MAC CE includes the start time and duration of the timer, the timer may be started at the start time, and data scheduling may be performed based on the first power mode during the duration of the timer. For example, the start time may be the time when the terminal device receives the MAC CE.

[0149] Exemplarily, the duration of the timer may also be configured by the network device through RRC signaling, so that before the RRC signaling is updated, the duration configured by the RRC signaling is used.

[0150] Furthermore, this embodiment indicates the transmission mode of data scheduling through MAC CE. If the hybrid automatic repeat request (HARQ) feedback is turned off (that is, the terminal device does not need to feedback acknowledgement (ACK) / non-acknowledgement (NACK) when receiving the MAC CE), then the terminal device starts the timer or starts calculating the duration when the MAC CE is received after data decoding; if the HARQ feedback is turned on, then the terminal device starts the timer or starts calculating the duration after feeding back the decoding result of the MAC CE.

[0151] If the terminal device does not receive this type of MAC CE before the timer expires, the terminal device can restore to the default transmission power; if the terminal device receives an indication of a new MAC CE before the timer expires, the timer can be reset to extend the high-power transmission time of the terminal device.

[0152] S404. The terminal device determines a fourth power level according to the first indication information.

[0153] The specific implementation of this step can be found in Figure 3 Step S302 of the illustrated embodiment will not be described in detail here.

[0154] S405. The terminal device sends a first signal to the network device at the fourth power level. Correspondingly, the network device receives the first signal.

[0155] After determining the fourth power level, the terminal device sends a first signal to the network device at the fourth power level. The first signal may be an uplink channel or signal.

[0156] Thus, the terminal device can flexibly determine the power mode or power level according to the instruction of the network device.

[0157] According to a power determination method provided in an embodiment of the present application, the terminal device reports its own capabilities, and the network device indicates the power mode or power level of the data scheduling of the terminal device, so that the terminal device can flexibly and accurately determine the transmission power;

[0158] By reporting the first information by the terminal device, the high-power transmission of the terminal device can meet the requirements of regulations.

[0159] It can be understood that in the above embodiments, the methods and / or steps implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used for the terminal device; the methods and / or steps implemented by the network device can also be implemented by components (such as chips or circuits) that can be used for the network device.

[0160] The above mainly introduces the scheme provided by the embodiment of the present application from the perspective of the interaction between the terminal device and the network device. Accordingly, the embodiment of the present application also provides a communication device, which is used to implement the above various methods. The communication device can be a terminal device in the above method embodiment, or a component that can be used for the terminal device; or, the communication device can be a network device in the above method embodiment, or a component that can be used for the network device. It can be understood that in order to implement the above functions, the communication device includes a hardware structure and / or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0161] The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0162] Based on the same concept of the above power determination method, the present application also provides the following communication device:

[0163] like Figure 6 , which is a schematic diagram of the structure of a communication device provided in an embodiment of the present application, the communication device 600 includes a transceiver unit 601 and a processing unit 602; wherein:

[0164] When the communication device is used to implement the functions of the terminal device in the above method embodiment, the transceiver unit 601 is used to execute the following steps: Figure 3 In the illustrated embodiment, the operations of the terminal device in steps S301 and S303, and the processing unit 602 is used to perform the following steps: Figure 3 Step S302 in the embodiment shown; or, the transceiver unit 601 is used to perform the following steps: Figure 4 In the illustrated embodiment, the operations of the terminal device in steps S401a to S401b, S403 and S405, and the processing unit 602 is used to perform the following steps: Figure 4 Step S404 in the illustrated embodiment.

[0165] When the communication device is used to implement the function of the network device in the above method embodiment, the transceiver unit 601 is used to execute the following steps: Figure 3 The operation of the network device in steps S301 and S303 in the embodiment shown; or, the transceiver unit 601 is used to perform the following Figure 4 In the embodiment shown, the operations of the network device in steps S401a-S401b, S403 and S405, and the processing unit 602 are used to perform the following operations: Figure 4 Step S402 in the illustrated embodiment.

[0166] For the specific implementation of the above-mentioned transceiver unit 601 and the processing unit 602, reference may be made to the description in the above-mentioned method embodiment.

[0167] like Figure 7As shown, it is a structural schematic diagram of another communication device provided in an embodiment of the present application, and the communication device 700 includes one or more processors 701 (one processor is illustrated in the figure). Optionally, the communication device 700 may also include an interface circuit 702 (indicated by a dotted line in the figure), and the processor 701 and the interface circuit 702 are coupled to each other. It is understandable that the interface circuit 702 can be a transceiver or an input-output interface. Optionally, the communication device 700 may also include a memory 703 (indicated by a dotted line in the figure). The memory 703 is used to store instructions executed by the processor 701, or to store input data required for the processor 701 to run instructions, or to store data generated after the processor 701 runs instructions.

[0168] When the communication device is used to implement the functions of the terminal device in the above method embodiment, the interface circuit 702 is used to execute the following steps: Figure 3 In the illustrated embodiment, the operations of the terminal device in steps S301 and S303, and the processor 701 is used to perform the following operations: Figure 3 Step S302 in the embodiment shown; or, the interface circuit 702 is used to perform the following steps: Figure 4 The operations of the terminal device in steps S401a-S401b, S403 and S405 in the illustrated embodiment, and the processor 701 is used to execute the following Figure 4 Step S404 in the illustrated embodiment.

[0169] When the communication device is used to implement the function of the network device in the above method embodiment, the interface circuit 702 is used to perform the following steps: Figure 3 The operation of the network device in steps S301 and S303 in the embodiment shown; or, the interface circuit 702 is used to perform the following Figure 4 In the embodiment shown, the operations of the network device in steps S401a-S401b, S403 and S405, and the processor 701 is used to execute the following steps: Figure 4 Step S402 in the illustrated embodiment.

[0170] When the above communication device is a chip applied to a terminal device, the chip implements the functions of the terminal device in the above method embodiment. The chip receives information from other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device; or the chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device.

[0171] When the above communication device is a chip applied to a network device, the chip implements the function of the network device in the above method embodiment. The chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the chip sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device.

[0172] In addition, it should be noted that the aforementioned transceiver unit and / or processing unit can be implemented through a virtual module, for example, the processing unit can be implemented through a software function unit or a virtual device, and the transceiver unit can be implemented through a software function or a virtual device. Alternatively, the processing unit or the transceiver unit can also be implemented through a physical device, for example, if the device is implemented using a chip / chip circuit, the transceiver unit can be an input-output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing unit is an integrated processor or microprocessor or integrated circuit.

[0173] The division of modules in this application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each example of this application may be integrated into one processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0174] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0175] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed, the method in the above embodiment is implemented.

[0176] The embodiments of the present application also provide a computer program product including instructions, which, when executed on a computer, enables the computer to execute the method in the above embodiments.

[0177] An embodiment of the present application also provides a communication system, including the above-mentioned communication device.

[0178] The embodiment of the present application also provides a circuit, which is coupled to a memory and is used to execute the method shown in the above embodiment. The circuit may include a chip circuit.

[0179] When the above-mentioned communication device is a module applied to a network device, the network device module implements the function of the network device in the above-mentioned method embodiment. The network device module receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or, the network device module sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device. The network device module here can be a baseband chip of a network device, or a CU, DU or other module, or a device under the O-RAN architecture, such as an open CU, an open DU and other devices.

[0180] It should be noted that the above units or one or more of the units can be implemented by software, hardware or a combination of the two. When any of the above units or units is implemented by software, the software exists in the form of computer program instructions and is stored in a memory, and a processor can be used to execute the program instructions and implement the above method flow.

[0181] In this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or all or part of the circuits in the aforementioned devices for implementing processing functions, which may implement or execute the methods, steps and logic block diagrams disclosed in this application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in this application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0182] When the above units or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

[0183] Optionally, the embodiment of the present application further provides a chip system, including: at least one processor and an interface, the at least one processor is coupled to a memory via the interface, and when the at least one processor runs a computer program or instruction in the memory, the chip system executes a method in any of the above method embodiments. Optionally, the chip system may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

[0184] The memory in the present application may also be a circuit or any other device capable of implementing a storage function, for storing program instructions and / or data. The memory is any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. For example, the memory may be a non-volatile memory, such as a digital versatile disc (DVD), a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM).

[0185] The terms "including" and "having" and any variations thereof mentioned in the above description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices. It should be noted that in the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any method or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other methods or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner.

[0186] It should be understood that in the description of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship, for example, A / B can represent A or B; wherein A and B can be singular or plural. Also, in the description of the present application, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, wherein a, b, c can be single or multiple. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be necessarily different. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

[0187] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, a computer, a network device or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, network device or data center.

[0188] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, a single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0189] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

[0190] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0191] The components in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs. Those skilled in the art can combine or combine the different embodiments and features of the different embodiments described in this specification.

[0192] In the present application, under the premise of no logical contradiction, the examples may reference each other, for example, the methods and / or terms between method embodiments may reference each other, for example, the functions and / or terms between device embodiments may reference each other, for example, the functions and / or terms between device examples and method examples may reference each other.

Claims

1. A method for determining power, characterized in that: The method comprises: receiving first indication information, where the first indication information is used to indicate a power mode for data scheduling, or is used to indicate a third power level; The power mode includes a first power mode or a second power mode, the first power mode corresponds to a first power level, the second power mode corresponds to a second power level, and the first power level is higher than the second power level; Determine a fourth power level according to the first indication information; The first signal is sent at the fourth power level.

2. The method according to claim 1, characterized in that The method further comprises: Sending second indication information, where the second indication information is used to indicate whether the first power mode is supported, or to indicate a fifth power level.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Send first information, wherein the first information includes at least one of the following: a first remaining duration for transmission in the first power mode within a first time period, a second remaining duration that cannot be transmitted in the first power mode within the first time period, and a third remaining duration that cannot be scheduled for uplink transmission within the first time period; the first information is obtained based on proportion information of transmission in the first power mode within the first time period.

4. The method according to claim 3, characterized in that The first information is based on a reference high power level.

5. The method according to claim 1, characterized in that The method further comprises: Send third indication information, where the third indication information is used to indicate a step size for adjusting the fourth power level and / or a power margin of the terminal device.

6. The method according to any one of claims 1 to 5, characterized in that The first indication information is carried in downlink control information or a media access control element.

7. The method according to any one of claims 1 to 6, characterized in that The first indication information also includes at least one of the following: the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, the start time and duration of the timer, wherein the timer is used to determine the time for data scheduling based on the first indication information.

8. A method for determining power, characterized in that: The method comprises: Sending first indication information, where the first indication information is used to indicate a power mode for data scheduling, or to indicate a third power level; The power mode includes a first power mode or a second power mode, the first power mode corresponds to a first power level, the second power mode corresponds to a second power level, and the first power level is higher than the second power level; A first signal is received, where the first signal is sent at a fourth power level, and the fourth power level is determined according to the first indication information.

9. The method according to claim 8, characterized in that The method further comprises: receiving second indication information, where the second indication information is used to indicate whether the first power mode is supported, or to indicate a fifth power level; The first indication information is determined according to the second indication information.

10. The method according to claim 8 or 9, characterized in that The method further comprises: Receive first information, wherein the first information includes at least one of the following: a first remaining duration for transmission in the first power mode within a first time period, a second remaining duration for which transmission in the first power mode cannot be performed within the first time period, and a third remaining duration for which uplink transmission cannot be scheduled within the first time period; the first information is obtained based on proportion information of transmission in the first power mode within the first time period; The first indication information is determined according to the first information.

11. The method according to claim 10, characterized in that The first information is based on a reference high power level.

12. The method according to any one of claims 8 to 11, characterized in that The method further comprises: receiving third indication information, where the third indication information is used to indicate a step size for adjusting the fourth power level and / or a power headroom of a terminal device; The first indication information is determined according to the third indication information.

13. The method according to any one of claims 8 to 12, characterized in that The first indication information is carried in downlink control information or a media access control element.

14. The method according to any one of claims 8 to 13, characterized in that The first indication information also includes at least one of the following: the effective time of the fourth power level indicated by the first indication information, the effective duration of the fourth power level indicated by the first indication information, the start time and duration of the timer, wherein the timer is used to determine the time for data scheduling based on the first indication information.

15. A communication device, characterized in that: The method comprises a unit for implementing the method according to any one of claims 1 to 7, or comprises a unit for implementing the method according to any one of claims 8 to 14.

16. A communication system, characterized in that: The method comprises a terminal device and a network device, wherein the terminal device is used to execute the method according to any one of claims 1 to 7, and the network device is used to execute the method according to any one of claims 8 to 14.

17. A communication device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method as claimed in any one of claims 1 to 7 or the method as claimed in any one of claims 8 to 14 when executing the computer program.

18. A computer-readable storage medium, wherein a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed, the method according to any one of claims 1 to 14 is executed.

19. A computer program product comprising instructions, which, when executed on a communication device, cause the communication device to perform the method according to any one of claims 1 to 14.

20. A chip, characterized in that: The chip is coupled to a memory, and the chip is used to execute the method according to any one of claims 1 to 14.

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