Communication method, terminal equipment and network equipment

Abstract

The invention provides a communication method, terminal equipment and network equipment. The method comprises: a terminal device sends first information to a network device, the first information being used for determining a first transmitting power of the terminal device in a first frequency band and / or a first frequency band combination, and if the first transmitting power is a transmitting power of the terminal device in the first frequency band, the first transmitting power is a transmitting power of the terminal device in the first frequency band; the first transmitting power is greater than the maximum transmitting power corresponding to the power level of the first frequency band; and if the first transmitting power is the transmitting power of the terminal equipment in the first frequency band combination, the first transmitting power is greater than the maximum transmitting power corresponding to the power level of the first frequency band combination. The terminal equipment sends the first information to the network equipment to inform the network equipment of the first transmitting power, so that the network equipment is helped to schedule resources for the terminal equipment based on the first transmitting power, and the reasonability of resource scheduling is improved. The problem that in a traditional resource scheduling mode, the network equipment can only perform scheduling based on the power level, and consequently resource scheduling is unreasonable is avoided.

Description

Communication method, terminal equipment and network equipment Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a communication method, terminal equipment and network equipment. Background Art

[0002] In some scenarios, a terminal device may be allowed to transmit uplink at a maximum transmit power higher than the configured power level. However, when a network device schedules resources (for example, allocates bandwidth) for a terminal device based on the terminal device's transmit power, it can only schedule based on the maximum transmit power corresponding to the power level. However, the maximum transmit power corresponding to the power level may be lower than the transmit power supported by the terminal device, resulting in unreasonable resources being scheduled by the network device for the terminal device.

[0003] Summary of the Invention

[0004] The present application provides a communication method, a terminal device, and a network device. The following introduces various aspects of the present application.

[0005] In a first aspect, a communication method is provided, including: a terminal device sends first information to a network device, the first information being used to determine a first transmission power of the terminal device in a first frequency band and / or a first frequency band combination, wherein, if the first transmission power is the transmission power of the terminal device in the first frequency band, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band; if the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

[0006] According to a second aspect, a communication method is provided, including: a network device receives first information sent by a terminal device, the first information being used to determine a first transmission power of the terminal device in a first frequency band and / or a first frequency band combination, wherein, if the first transmission power is the transmission power of the terminal device in the first frequency band, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band; if the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

[0007] According to a third aspect, a terminal device is provided, including: a sending unit for sending first information to a network device, wherein the first information is used to determine a first transmission power of the terminal device in a first frequency band and / or a first frequency band combination, wherein if the first transmission power is the transmission power of the terminal device in the first frequency band, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band; if the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

[0008] In a fourth aspect, a network device is provided, including: a receiving unit for receiving first information sent by a terminal device, the first information being used to determine a first transmission power of the terminal device in a first frequency band and / or a first frequency band combination, wherein, if the first transmission power is the transmission power of the terminal device in the first frequency band, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band; if the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

[0009] In a fifth aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.

[0010] In the sixth aspect, a network device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the second aspect.

[0011] In a seventh aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned terminal device and / or network device. In another possible design, the system may also include other devices that interact with the terminal device or network device in the solution provided in the embodiment of the present application.

[0012] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables a terminal to execute part or all of the steps in the methods of the above aspects.

[0013] In a ninth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a terminal to perform some or all of the steps of the methods described in each of the above aspects. In some implementations, the computer program product may be a software installation package.

[0014] In the tenth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0015] In the embodiment of the present application, the terminal device sends first information to the network device to inform the network device of the first transmit power, which helps the network device schedule resources for the terminal device based on the first transmit power, thereby improving the rationality of resource scheduling. This avoids the traditional resource scheduling method in which the network device can only schedule based on power level, resulting in unreasonable resource scheduling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a wireless communication system 100 used in an embodiment of the present application.

[0017] FIG2 is a schematic diagram of the total amount of transmission power used by a terminal device for uplink transmission under power level restrictions.

[0018] FIG3 is a schematic diagram of a transmitting circuit of a terminal device to which an embodiment of the present application is applicable.

[0019] FIG4 is a schematic diagram of a transmitting circuit of a terminal device to which another embodiment of the present application is applicable.

[0020] FIG5 is a schematic diagram of a transmitting circuit of a terminal device to which another embodiment of the present application is applicable.

[0021] FIG6 is a schematic diagram of a transmitting circuit of a terminal device to which another embodiment of the present application is applicable.

[0022] FIG7 is a schematic diagram of a transmitting circuit of a terminal device to which another embodiment of the present application is applicable.

[0023] FIG8 is a schematic diagram of a transmitting circuit of a terminal device to which another embodiment of the present application is applicable.

[0024] FIG9 is a schematic diagram of a transmitting circuit of a terminal device to which another embodiment of the present application is applicable.

[0025] FIG10 is a flow chart of a communication method according to an embodiment of the present application.

[0026] FIG11 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0027] FIG12 is a schematic diagram of a network device according to an embodiment of the present application.

[0028] FIG13 is a schematic structural diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solution in this application will be described below with reference to the accompanying drawings.

[0030] Figure 1 illustrates a wireless communication system 100 used in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographic area and may communicate with the terminal device 120 within the coverage area.

[0031] FIG1 exemplarily shows a network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0032] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0033] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0034] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through the base station.

[0035] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station can also refer to a communication module, a modem or a chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.

[0036] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0037] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0038] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0039] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0040] In the wireless communication system 100, different terminal devices are typically configured with different PCs to limit the maximum transmit power of the terminal devices during uplink transmission. Generally, if the maximum transmit power corresponding to the power level configured for a terminal device is higher, that is, the terminal device can use a higher transmit power when performing uplink transmission, then the uplink coverage range of the terminal device is larger, for example, the terminal device located in area 2 in Figure 1. If the maximum transmit power corresponding to the power level configured for a terminal device is lower, that is, the terminal device can only use a lower transmit power when performing uplink transmission, then the uplink coverage range of the terminal device is smaller, for example, the terminal device located in area 1 in Figure 1.

[0041] To facilitate understanding of the present application, the power level of the terminal device and the transmitting circuit of the terminal device are respectively introduced below in conjunction with FIG. 2 to FIG. 3 .

[0042] Power class (PC)

[0043] Generally, the higher the transmit power of a terminal device, the greater the radiation exposure to the human body. Therefore, a power level mechanism is introduced to limit the maximum transmit power used by terminal devices during uplink transmission, ensuring that the transmit power of terminal devices during uplink transmission meets human radiation safety regulations. Figure 2 is a schematic diagram of the total transmit power used by a terminal device for uplink transmission under power level restrictions. Referring to Figure 2, assuming that the terminal device is configured with a power level of PC3, and the maximum transmit power corresponding to PC3 is 23 decibel milliwatts (dBm), then the maximum transmit power used by the terminal device during uplink transmission within a transmission subframe (for example, 1ms) cannot exceed the maximum transmit power limited by PC3, that is, 23dBm.

[0044] For ease of understanding, the following uses Table 1 as an example to introduce the power levels and the maximum transmit powers corresponding to the power levels.

[0045] Table 1

[0046] Power level PC5PC3PC2PC1.5PC1 Maximum transmit power (dBm) 2023262930

[0047] As shown in Table 1, the maximum transmit power corresponding to PC5 is 20dBm, the maximum transmit power corresponding to PC3 is 23dBm, the maximum transmit power corresponding to PC2 is 26dBm, the maximum transmit power corresponding to PC1.5 is 29dBm, and the maximum transmit power corresponding to PC1 is 30dBm.

[0048] In addition, when the terminal device needs to send multiple uplink signals, the total transmission power of the above-mentioned multiple uplink signals cannot exceed the power level limit corresponding to the terminal device. For example, when the terminal device transmits multiple uplink signals through multiple frequency bands (or a combination of frequency bands), the total transmission power of the terminal device transmitting multiple uplink signals on multiple frequency bands cannot exceed the above-mentioned power level limit. Among them, the application scenario of transmitting uplink signals through multiple frequency bands can be scenarios such as the terminal device working in carrier aggregation (CA), evolved universal terrestrial radio access and new air interface dual connection mode (EUTRA-NR dual connection, EN-DC), new air interface and 4G base station dual connection mode (NR eNB dual connection, NE-DC), dual connectivity (dual connectivity, DC), etc. For another example, when the terminal device simultaneously transmits multiple uplink signals through a single-band multi-antenna, the total transmission power of the terminal device transmitting multiple uplink signals cannot exceed the above-mentioned power level limit.

[0049] As described above, a frequency band or a combination of frequency bands may correspond to a power level, or in other words, a power level may be configured based on a frequency band or a combination of frequency bands.

[0050] For example, in a single-band scenario, the power level of band A is PC3. When the terminal device performs uplink transmission on band A, the actual transmission power is less than or equal to the maximum transmission power corresponding to PC3.

[0051] For example, in a band combination scenario, assuming band combination 1 includes bands A and B, and the power level of band combination 1 is PC2, then when the terminal device performs uplink transmission on bands A and B, the actual transmit power is less than or equal to the maximum transmit power corresponding to PC2. This shows that the power level of the band combination can be understood as limiting the total transmit power of the band combination.

[0052] Transmitter circuit of terminal equipment

[0053] Typically, a terminal device may be provided with multiple transmission channels, each of which is provided with a power amplifier (PA) for amplifying the signal power. Each PA may be used to amplify signals in different frequency bands or the same frequency band. For each PA, its maximum amplifiable power is limited. After a signal is power-amplified by the PA, it needs to be processed by some RF devices before it can be transmitted to the antenna corresponding to the PA for uplink transmission. However, after the signal is processed by the RF device, its power will inevitably attenuate. Therefore, in order to accurately know the transmission power of the signal, a RF port may be set in front of the antenna to measure the transmission power of the signal.

[0054] Generally, the maximum transmit power corresponding to the power levels described above is also used to limit the transmit power of the uplink signal detected at the radio port.

[0055] To facilitate understanding, the following describes the relationship between the transmission path and the power level using the transmission circuit shown in FIG3 as an example.

[0056] As shown in Figure 3, the terminal device can be configured with three transmit paths, each equipped with a PA. Accordingly, the three transmit paths include PA1, PA2, and PA3. PA1 amplifies the signal power of frequency band 1, corresponding to a power level of PC3. PA2 amplifies the signal power of frequency band 2, corresponding to a power level of PC2. PA3 amplifies the signal power of frequency band 3, corresponding to a power level of PC2. The maximum power specified for PC2 is 26dBm, and the maximum power specified for PC3 is 23dBm.

[0057] Accordingly, after attenuation by some RF components, the signal power output by PA1 cannot exceed 23dBm when measured at RF port 1. After attenuation by some RF components, the signal power output by PA2 cannot exceed 26dBm when measured at RF port 2. After attenuation by some RF components, the signal power output by PA3 cannot exceed 26dBm when measured at RF port 3.

[0058] Furthermore, for the same power level, terminal devices can have multiple implementations. For ease of understanding, the following uses the transmit circuits shown in Figures 4 through 6 as examples. Assuming the power level corresponding to frequency band 1 is PC2, the terminal device's transmit circuit implementations can include the three shown in Figures 4 through 7.

[0059] 4 , the terminal device may include two transmission paths, wherein PA1 and PA2 are respectively provided in the two transmission paths, and both transmission paths may operate on the same carrier CC1 in frequency band 1, wherein the power levels of PA1 and PA2 may be PC3.

[0060] Referring to Figure 5, the terminal device may include two transmission paths, wherein PA1 and PA2 are respectively provided in the two transmission paths, and both transmission paths can operate on the same carrier CC1 in frequency band 1, wherein the power level of PA1 can be PC2, and the power level of PA2 can be PC3.

[0061] Referring to Figure 6, the terminal device may include two transmission paths, wherein PA1 and PA2 are respectively provided in the two transmission paths, and both transmission paths can operate on the same carrier CC1 in frequency band 1, wherein the power level of PA1 can be PC2, and the power level of PA2 can be PC2.

[0062] The following describes the transmit circuits shown in Figures 7 to 9 as examples. Assuming that the power level corresponding to frequency band combination 1 is PC2, the transmit circuit implementation methods of the terminal device can include the three shown in Figures 7 to 9.

[0063] Referring to Figure 7, the terminal device may include two transmission paths, wherein PA1 and PA2 are respectively provided in the two transmission paths, and both transmission paths can operate on different carriers in frequency band combination 1, namely carriers CC1 and CC2, wherein the power levels of PA1 and PA2 can be PC3.

[0064] Referring to Figure 8, the terminal device may include two transmission paths, wherein PA1 and PA2 are respectively provided in the two transmission paths, and both transmission paths can operate on different carriers in frequency band combination 1, namely carriers CC1 and CC2, wherein the power level of PA1 can be PC2, and the power level of PA2 can be PC3.

[0065] Referring to Figure 9, the terminal device may include two transmission paths, wherein PA1 and PA2 are respectively provided in the two transmission paths, and both transmission paths can operate on different carriers in frequency band combination 1, namely carriers CC1 and CC2, wherein the power level of PA1 can be PC2, and the power level of PA2 can be PC2.

[0066] 7-9 , carriers CC1 and CC2 may belong to the same frequency band in frequency band combination 1 , or carriers CC1 and CC2 may belong to different frequency bands in frequency band combination 1 .

[0067] Regardless of which of the above implementation methods is used, the total transmission power of the terminal device for uplink transmission cannot exceed (ie, be less than or equal to) the maximum transmission power corresponding to the power level.

[0068] In some scenarios, the transmit power capability of a terminal device may be high, where the transmit power capability can be understood as the transmit power supported by the terminal device's hardware (e.g., maximum transmit power capability). Generally, the higher the transmit power capability of a terminal device, the greater the transmit power supported by the terminal device's hardware. Conversely, the lower the transmit power capability of a terminal device, the lower the transmit power supported by the terminal device's hardware.

[0069] For terminal devices with higher transmit power capabilities, the transmit power they support is typically higher than the maximum transmit power corresponding to the configured power level. In this case, due to the maximum transmit power corresponding to the power level, the actual transmit power of the terminal device must be less than or equal to the maximum transmit power corresponding to the power level. This wastes the terminal device's transmit power, limits its transmit power usage, and prevents performance improvements.

[0070] Taking the transmitting circuit of the terminal device shown in Figure 5 as an example, the power levels corresponding to the two transmitting paths of the terminal device are PC3 and PC2. At this time, the total transmitting power supported by the two transmitting paths is higher than the maximum transmitting power corresponding to PC2. However, when the two transmitting paths operate in frequency band 1, due to the limitation of PC2, the actual transmitting power of the terminal device needs to be less than or equal to the maximum transmitting power corresponding to PC2, which wastes the transmitting power of the terminal device, limits the use of the transmitting power of the terminal device, and causes the performance of the terminal device to be unable to be improved.

[0071] Taking the transmitting circuit of the terminal device shown in Figure 6 as an example, the power level corresponding to the two transmitting paths of the terminal device is PC2. At this time, the total transmitting power supported by the two transmitting paths is higher than the maximum transmitting power corresponding to PC2. However, when the two transmitting paths operate in frequency band 1, due to the limitation of PC2, the actual transmitting power of the terminal device needs to be less than or equal to the maximum transmitting power corresponding to PC2, which wastes the transmitting power of the terminal device, limits the use of the transmitting power of the terminal device, and causes the performance of the terminal device to be unable to be improved.

[0072] To avoid wasting the transmit power of terminal devices, in some scenarios, terminal devices can be allowed to transmit uplink at a maximum transmit power higher than the configured power level. However, different types of terminal devices have different transmit power capabilities. When network devices schedule resources (for example, allocate bandwidth) for terminal devices based on their transmit power, they cannot schedule based on the transmit power supported by the terminal devices, resulting in unreasonable resources being scheduled for the terminal devices.

[0073] Therefore, in order to avoid the above problems, the present application provides a communication method, which is described below in conjunction with Figure 10. Figure 10 is a flow chart of the communication method according to the embodiment of the present application, and the method shown in Figure 10 includes step S1010.

[0074] In step S1010, the terminal device sends first information to the network device, where the first information is used to determine a first transmit power of the terminal device in a first frequency band and / or a first frequency band combination.

[0075] In some implementations, the first transmit power may be the maximum transmit power supported by the terminal device, or a transmit power range corresponding to the maximum transmit power. Of course, the first transmit power may also be a transmit power less than the maximum transmit power supported by the terminal device, or a transmit power range, which is not limited in the embodiments of the present application.

[0076] If the first transmit power is the transmit power of the terminal device in the first frequency band, the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band. For example, if the terminal device operates in a single frequency band (i.e., the first frequency band), the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band.

[0077] In some implementations, one or more transmit passbands in a terminal device may simultaneously operate in the first frequency band (i.e., the single-band scenario described above). In this case, the first transmit power may be determined based on the total transmit power of the one or more transmit channels. For example, the first transmit power may be the total transmit power of the one or more transmit channels. Of course, the first transmit power may also be obtained by increasing or decreasing the total transmit power. This embodiment of the present application is not limited to this.

[0078] For example, a terminal device may support M PAs transmitting simultaneously on a single frequency band, where M≥2 and M is a positive integer. Then, the first transmit power on the frequency band may be the sum of the maximum transmit powers of the M PAs.

[0079] For example, a terminal device can support simultaneous transmission from three PAs on a single frequency band, with two PAs at power levels of PC3 and the remaining PA at power level of PC2. In this case, the first transmit power on this frequency band can be the sum of the maximum transmit powers of the three PAs, i.e., 29dBm.

[0080] If the first transmit power is the transmit power of the terminal device in the first frequency band combination, the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band combination. For example, in a scenario where the terminal device operates in a frequency band combination (e.g., CA, EN-DC, NE-DC, DC, etc.), the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band combination.

[0081] In some implementations, one or more transmit passbands in a terminal device may simultaneously operate in a frequency band (also referred to as the "second frequency band") in the first frequency band combination. For example, in the frequency band combination scenario described above, the first transmit power may be determined based on the total transmit power of the one or more transmit channels. For example, the first transmit power may be the total transmit power of the one or more transmit channels. Of course, the first transmit power may also be obtained by increasing or decreasing the total transmit power. This embodiment of the present application is not limited to this.

[0082] In the embodiment of the present application, the terminal device sends first information to the network device to inform the network device of the first transmit power, which helps the network device schedule resources for the terminal device based on the first transmit power, thereby improving the rationality of resource scheduling. This avoids the situation in traditional resource scheduling where the network device cannot know the first transmit power, resulting in unreasonable resource scheduling.

[0083] The first information may carry a variety of information for determining the first transmit power. In some implementations, the first information may carry information indicating the transmit power capability of the terminal device (hereinafter referred to as "second information"). In other implementations, the first information may carry information indicating the first transmit power (hereinafter referred to as "third information"). The following uses the example of the first information carrying the second information or the first information carrying the third information as an example, in conjunction with Examples 1 and 2.

[0084] Example 1

[0085] The second information is used to indicate the transmission power capability of the terminal device, wherein the transmission power capability of the terminal device is related to the hardware of the terminal device (for example, PA, transmission channel, etc.). Therefore, the transmission power capability of the terminal device can also be referred to as the transmission power capability of the hardware of the terminal device (or hardware capability).

[0086] In some implementations, transmit power capability may refer to the power level of the PA (or transmit channel) in a terminal device. The PA power level can be understood as the power level corresponding to the PA's actual transmit power. For example, if the PA's actual maximum transmit power is 23dBm, the PA's power level may be PC3. In other implementations, transmit power capability may refer to the number of PAs (or transmit channels) that a terminal device can use for simultaneous transmission.

[0087] Accordingly, in order to indicate the transmission power capability of the above-mentioned terminal device, the second information may include one or more of the following: the number of transmission channels of the terminal device corresponding to each power level in one or more power levels; the transmission power information corresponding to one or more carriers in the first frequency band combination; the transmission power information corresponding to one or more carriers in the first frequency band; the transmission power information of the first frequency band combination; the transmission power information of the first frequency band.

[0088] In other implementations, the second information may be carried in the terminal capability (also known as UE capability) sent by the terminal device during the initial access process. Of course, the second information may also be sent as separate information, which is not limited in the present embodiment.

[0089] If the second information includes the number of transmit channels of the terminal device corresponding to each power level in one or more power levels, the second information may indicate the number of transmit channels of the terminal device and / or the power level of each transmit channel. The one or more power levels may be understood as the power level of the PA or the transmit channel.

[0090] In some implementations, the one or more power levels may be default (e.g., built into the terminal device or network device at the factory). Alternatively, the one or more power levels may be predefined, e.g., based on a communication protocol. The one or more power levels may also be negotiated between the network device and the terminal device, which is not limited in this embodiment of the present application.

[0091] In other implementations, the transmit channels of the terminal device corresponding to the one or more power levels may include transmit channels used by the terminal device for simultaneous transmission. In other words, the transmit channels of the terminal device corresponding to the one or more power levels support simultaneous transmission.

[0092] In some scenarios (such as the single-band scenario described above), the multiple transmission channels supporting simultaneous transmission may operate in the same frequency band.

[0093] For example, the default PA power levels include PC5, PC3, PC2, and PC1.5. The terminal device has two PAs that support simultaneous transmission, and the power levels of the two PAs are PC3 or PC2. In this case, the second information can reserve one or more bits for each default power level to indicate the number of PAs at the corresponding power level. In other words, the second information can be expressed as {0; 1; 1; 0}, corresponding to the default power levels, that is, {PC5; PC3; PC2; PC1.5} = {0; 1; 1; 0}, to indicate that the terminal device has two PAs, and the power levels of the two PAs are PC3 and PC2, respectively.

[0094] For another example, the default PA power levels include PC5, PC3, PC2, and PC1.5. The terminal device has three PAs that support simultaneous transmission, and the power levels corresponding to two of the three PAs are PC3, and the power level corresponding to the remaining PA is PC2. In this case, the second information can reserve one or more bits for each default power level to indicate the number of PAs at the corresponding power level. In other words, the second information can be expressed as {0; 2; 1; 0}, corresponding to the default power level, that is, {PC5; PC3; PC2; PC1.5} = {0; 2; 1; 0}, to indicate that the terminal device has three PAs, and the power level of two of the three PAs is PC3, and the power level of the remaining PA is PC2.

[0095] If the second information includes transmit power information corresponding to one or more carriers in the first frequency band combination, the second information may indicate the number of carriers included in the first frequency band combination and / or transmit power information of each carrier.

[0096] The above-mentioned transmit power information may include a transmit power level, a maximum transmit power corresponding to the transmit power level, and a transmit power capability (e.g., a maximum transmit power capability). The transmit power capability is used to indicate the maximum transmit power. Accordingly, the second information may indicate the maximum transmit power capability (e.g., the maximum transmit power corresponding to the power level) of one or more carriers in the first frequency band combination, and / or the second information may indicate the number of carriers in the first frequency band combination corresponding to the one or more power levels.

[0097] Typically, in a scenario based on communication based on a first frequency band combination (for example, a combination of inter-band CA and intra-band CA, or inter-band CA), the transmit power capabilities (for example, power levels) of the PAs corresponding to different CCs may differ. Therefore, in an embodiment of the present application, reporting the transmit power of the CC at a CC granularity is beneficial to improving the accuracy of indicating the actual transmit power under multiple carrier combinations.

[0098] In some implementations, the multiple carriers may belong to a frequency band in the first frequency band combination. Accordingly, the terminal device may transmit simultaneously on multiple carriers within the frequency band. The first frequency band combination may include only one of the aforementioned frequency bands, for example, in an intra-band CA scenario. Of course, the first frequency band combination may also include multiple frequency bands, and the multiple frequency bands may include the aforementioned frequency bands, for example, in a scenario where intra-band CA is combined with out-of-band CA.

[0099] For ease of understanding, the following describes a scenario combining intra-band CA and out-of-band CA, taking the first frequency band combination as an example. Assume that the first frequency band combination includes CC1, CC2, CC3, and CC4, where CC1 and CC2 are located in band 1, and CC3 and CC4 are located in band 2.

[0100] It should be noted that in some scenarios, there may be only one CC in a frequency band in the first frequency band combination. In this case, the transmit power information of the CC can be understood as the transmit power information of the frequency band. Assume that frequency band combination 1 includes CC1, CC2, and CC3, where CC1 and CC2 can be located in frequency band 1 of frequency band combination 1, and CC3 can be located in frequency band 2 of frequency band combination 1. In this case, the power level of CC3 is the same as the power level of frequency band 2.

[0101] The following describes the implementation of the second information in the embodiments of the present application, taking the transmit power information including the transmit power level as an example. It should be understood that when the transmit power information includes other information such as the maximum transmit power corresponding to the power level, the implementation of the second information can be similar to that described below, with only the power level being replaced by other information. For the sake of brevity, the following will not be detailed one by one.

[0102] In some implementations, one or more power levels may be pre-set, and then the number of download waves at each power level may be indicated based on the multiple power levels. One or more power levels may be default (e.g., built into the terminal device or network device at the factory). Of course, the one or more power levels may also be pre-defined, for example, based on a communication protocol. The one or more power levels may also be negotiated between the network device and the terminal device, which is not limited in this embodiment of the present application.

[0103] For example, the default PA power levels include PC5, PC3, PC2, and PC1.5. The terminal device has two CCs that support simultaneous transmission, and the power levels of the two CCs are PC3 or PC2. In this case, the second information may reserve one or more bits for each default power level to indicate the number of CCs at the corresponding power level. In other words, the second information may be represented as {0; 1; 1; 0}, corresponding to the default power levels, i.e., {PC5; PC3; PC2; PC1.5} = {0; 1; 1; 0}, to indicate that the power levels of the two CCs are PC3 and PC2, respectively.

[0104] For another example, the default PA power levels include PC5, PC3, PC2, and PC1.5. The terminal device has three CCs that support simultaneous transmission, and the power levels corresponding to two of the three CCs are PC3, and the power level corresponding to the remaining CC is PC2. In this case, the second information can reserve one or more bits for each default power level to indicate the number of CCs at the corresponding power level. That is, the second information can be expressed as {0; 2; 1; 0}, corresponding to the above-mentioned default power level, that is, {PC5; PC3; PC2; PC1.5} = {0; 2; 1; 0}, to indicate that the terminal device has three CCs, and the power level of two of the three CCs is PC3, and the power level corresponding to the remaining CC is PC2.

[0105] In some scenarios, the maximum transmit power capability (e.g., power level) of a terminal device on the same carrier may be related to the frequency band combination in which the carrier is located. That is, the maximum transmit power capability of the same carrier may be different under different frequency band combinations.

[0106] For example, band combination 1 includes CC1 and CC2, and CC1 and CC2 are in the same frequency band in band combination 1. CC1's power level is PC3, and CC2's power level is PC2. Band combination 2 includes CC1, CC2, and CC3, and CC3 is in band 1 of band combination 2. CC1 and CC2 are in band 2 of band combination 2. CC1's power level is PC3, CC2's power level is PC3, and CC3's power level is PC3. This shows that CC2 is included in both band combination 1 and band combination 2, but CC2's power level varies in different band combinations.

[0107] Therefore, when the terminal device indicates the transmit power information of each CC to the network device, it can also indicate the frequency band combination corresponding to the CC. Of course, in the embodiment of the present application, the terminal device may not indicate the frequency band combination corresponding to the CC, and the embodiment of the present application is not limited to this.

[0108] If the second information includes transmit power information corresponding to one or more carriers in the first frequency band, the second information may indicate the number of carriers included in the first frequency band and / or transmit power information of each carrier.

[0109] The above-mentioned transmit power information may include a transmit power level, a maximum transmit power corresponding to the transmit power level, and a transmit power capability (e.g., a maximum transmit power capability). The transmit power capability is used to indicate the maximum transmit power. Accordingly, the second information may indicate the maximum transmit power capability (e.g., the maximum transmit power corresponding to the power level) of one or more carriers in the first frequency band, and / or the second information may indicate the number of carriers in the first frequency band corresponding to the one or more power levels.

[0110] Typically, in a scenario based on communication in the first frequency band (e.g., intra-band CA), the transmission power capabilities (e.g., power levels) of the PAs corresponding to different CCs may differ. Therefore, in an embodiment of the present application, reporting the transmission power of the CC at a CC granularity is beneficial to improving the accuracy of indicating the actual transmission power under a combination of multiple carriers.

[0111] In some implementations, the terminal device may transmit simultaneously on multiple carriers within the first frequency band.

[0112] The following describes the implementation of the second information in the embodiments of the present application, taking the transmit power information including the transmit power level as an example. It should be understood that when the transmit power information includes other information such as the maximum transmit power corresponding to the power level, the implementation of the second information can be similar to that described below, with only the power level being replaced by other information. For the sake of brevity, the following will not be detailed one by one.

[0113] In some implementations, one or more power levels may be pre-set, and then the number of download waves at each power level may be indicated based on the multiple power levels. One or more power levels may be default (e.g., built into the terminal device or network device at the factory). Of course, the one or more power levels may also be pre-defined, for example, based on a communication protocol. The one or more power levels may also be negotiated between the network device and the terminal device, which is not limited in this embodiment of the present application.

[0114] For example, the default PA power levels include PC5, PC3, PC2, and PC1.5. The terminal device has three CCs that support simultaneous transmission on frequency band 1, and the power levels corresponding to two of the three CCs are PC3, and the power level corresponding to the remaining CC is PC2. In this case, the second information can reserve one or more bits for each default power level to indicate the number of CCs at the corresponding power level. That is, the second information can be expressed as {0; 2; 1; 0}, corresponding to the above-mentioned default power level, that is, {PC5; PC3; PC2; PC1.5} = {0; 2; 1; 0}, to indicate that the terminal device has three CCs, and the power level of two of the three CCs is PC3, and the power level corresponding to the remaining CC is PC2.

[0115] As mentioned above, the maximum transmit power capability (e.g., power level) of a terminal device on the same carrier may be related to the frequency band combination in which the carrier is located. That is, the maximum transmit power capability of the same carrier may be different under different frequency band combinations.

[0116] Therefore, when the terminal device indicates the transmit power information of each CC to the network device, it can also indicate the frequency band combination corresponding to the CC. Of course, in the embodiment of the present application, the terminal device may not indicate the frequency band combination corresponding to the CC, and the embodiment of the present application is not limited to this.

[0117] It should be noted that in the embodiments of the present application, the terminal device may also use a traditional transmit power level reporting method to report the transmit power level based on the frequency band or frequency band combination. That is, the second information may include transmit power information for the first frequency band, and / or the second information may also include transmit power information for the first frequency band combination. The transmit power information can be described above.

[0118] Example 2

[0119] The third information is used to indicate the first transmit power. In some implementations, the third information may directly indicate the first transmit power, that is, the third information may carry the first transmit power. In other implementations, the third information may carry information indicating other parameters, where the other parameters can be used to determine the first transmit power. Of course, the third information may also be directly written to the other parameters. This embodiment of the present application is not limited to this.

[0120] If the first transmission power is the transmission power of the terminal device in the first frequency band, the above-mentioned other parameters may be, for example, the first power change (also called the "first power increase"), wherein the first power change may be the power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band.

[0121] Typically, in order to reduce the number of bits occupied by the indication information indicating the first power change, multiple different power changes can be preset. Accordingly, the terminal device can indicate the first power change by indicating which of the multiple power changes the first power change corresponds to.

[0122] The above-mentioned various power variation amounts may be default (for example, built into the terminal device or network device at the factory). Of course, the above-mentioned various power variation amounts may also be predefined, for example, based on a communication protocol. The above-mentioned various power variation amounts may also be negotiated between the network device and the terminal device, which is not limited in the embodiments of the present application.

[0123] For example, three power variation amounts A dBm, B dBm, and C dBm may be predefined. Accordingly, the terminal device may indicate, through the third information, which of the three power variation amounts the first power variation amount is.

[0124] If the first transmit power is the transmit power of the terminal device in the first frequency band, the other parameters may be, for example, a power variation range associated with the first power variation (also known as a "power increase range"), where the first power variation may be the power variation between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band. Accordingly, the power variation range associated with the first power variation may be understood as the power variation range between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band. In other words, the power variation range associated with the first power variation may be understood as the range of values ​​of the power variation between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band.

[0125] Generally, in order to reduce the number of bits occupied by the indication information indicating the power change range associated with the first power change amount, multiple different power change ranges can be preset. Accordingly, the terminal device can indicate the power change range associated with the first power change amount by indicating which of the multiple power change ranges the power change range associated with the first power change amount is.

[0126] The above-mentioned various power variation amounts may be default (for example, built into the terminal device or network device at the factory). Of course, the above-mentioned various power variation amounts may also be predefined, for example, based on a communication protocol. The above-mentioned various power variation amounts may also be negotiated between the network device and the terminal device, which is not limited in the embodiments of the present application.

[0127] For example, the value ranges of the first power variation Pincrease may be predefined as three: Pincrease ≤ A dBm, A dB < Pincrease ≤ B dBm, and B dBm < Pincrease, where A, B, and C are integers greater than or equal to 0, and A < B < C. Accordingly, the terminal device may indicate, through the third information, which of the three power variation ranges the power variation range associated with the first power variation is.

[0128] If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the above-mentioned other parameters may be, for example, a second power change (also called a "second power increase"), wherein the second power change may be a power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band combination.

[0129] Typically, in order to reduce the number of bits occupied by the indication information indicating the second power change, multiple different power changes can be preset. Accordingly, the terminal device can indicate the second power change by indicating which of the multiple power changes the second power change corresponds to.

[0130] The above-mentioned various power variation amounts may be default (for example, built into the terminal device or network device at the factory). Of course, the above-mentioned various power variation amounts may also be predefined, for example, based on a communication protocol. The above-mentioned various power variation amounts may also be negotiated between the network device and the terminal device, which is not limited in the embodiments of the present application.

[0131] For example, three power variation amounts A dBm, B dBm, and C dBm may be predefined. Accordingly, the terminal device may indicate, through the third information, which of the three power variation amounts the second power variation amount is.

[0132] If the first transmit power is the transmit power of the terminal device in the first frequency band combination, the above-mentioned other parameters may be, for example, a power variation range associated with the second power variation (also known as a "power increase range"), wherein the second power variation may be the power variation between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band combination. Accordingly, the power variation range associated with the second power variation may be understood as the power variation range between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band combination. In other words, the power variation range associated with the second power variation may be understood as the range of values ​​of the power variation between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band combination.

[0133] Generally, in order to reduce the number of bits occupied by the indication information indicating the power change range associated with the second power change amount, multiple different power change ranges can be preset. Accordingly, the terminal device can indicate the power change range associated with the second power change amount by indicating which of the multiple power change ranges the power change range associated with the second power change amount is.

[0134] The above-mentioned various power variation amounts may be default (for example, built into the terminal device or network device at the factory). Of course, the above-mentioned various power variation amounts may also be predefined, for example, based on a communication protocol. The above-mentioned various power variation amounts may also be negotiated between the network device and the terminal device, which is not limited in the embodiments of the present application.

[0135] For example, the value ranges of the second power variation Pincrease may be predefined as three: Pincrease ≤ A dBm, A dB < Pincrease ≤ B dBm, and B dBm < Pincrease, where A, B, and C are integers greater than or equal to 0, and A < B < C. Accordingly, the terminal device may indicate, through the third information, which of the three power variation ranges the power variation range associated with the second power variation is.

[0136] As described above, different terminal devices have different transmit power capabilities. Some terminal devices can support uplink transmission at a transmit power higher than the maximum transmit power corresponding to the power class, while some terminal devices do not support uplink transmission at a transmit power higher than the maximum transmit power corresponding to the power class. Therefore, before step S1010, the terminal device may send first indication information to the network device, where the first indication information is used to indicate that the terminal device has a first capability, and the first capability includes uplink transmission at a transmit power higher than the maximum transmit power corresponding to the power class.

[0137] In the embodiment of the present application, the first indication information may be the same as the first information. In other words, it can be understood that when the terminal device sends the first information, it indicates that the terminal device has the first capability. In other words, the first information may indicate that the terminal device has the first capability. Of course, in the embodiment of the present application, the first indication information may also be dedicated information, which is not limited in the embodiment of the present application.

[0138] Different terminal devices may have different transmission power capabilities in different frequency bands and frequency band combinations. Therefore, in an embodiment of the present application, the above-mentioned first indication information may have one or more indication granularities. Among them, when the terminal device as a whole is used as the indication granularity, the first indication information may indicate that the terminal device as a whole has the first capability. When the frequency band is used as the indication granularity, the first indication information may indicate that the terminal device has the first capability within the target frequency band (that is, one or more frequency bands). When the bandwidth is used as the indication granularity, the first indication information may indicate that the terminal device has the first capability within the target bandwidth (that is, one or more bandwidths). When the bandwidth group is used as the indication granularity, the first indication information may indicate that the terminal device has the first capability within the target bandwidth group (that is, one or more bandwidth groups).

[0139] In the embodiment of the present application, the first information may be proactively reported by the terminal device. For example, when the terminal device has the first capability, the first terminal device may proactively send the first information to the network device. Of course, the first information may also be requested by the network device to the terminal device.

[0140] That is, the above method also includes: the terminal device receives a first request sent by the network device, and the first request is used for the first transmission power of the terminal device; accordingly, the above step S1010 may include: in response to the first request, the terminal device sends first information to the network device.

[0141] In some implementations, after the terminal device enters the connected state, the network device may configure a frequency band combination and / or frequency band for the terminal device, and for certain frequency band combinations and / or frequency bands for which the terminal device has the first capability, the network device may request the terminal device to report a first transmit power. The frequency band combinations and / or frequency bands for which the terminal device has the first capability may be determined based on the first indication information described above. Of course, the network device may also determine that the terminal device has certain frequency band combinations and / or frequency bands for which the first capability is provided based on other methods.

[0142] For example, assume that the terminal device supports a first capability on all frequency band combinations, and the network device configures frequency band combination 1 for the terminal device. In this case, the network device may send a first request to the terminal device to request a first transmit power of the terminal device on frequency band combination 1. Accordingly, the terminal device may send first information to the network device to indicate the first transmit power, where the first information includes the maximum transmit power corresponding to the power level of each CC in frequency band combination 1.

[0143] In an embodiment of the present application, after receiving the first information sent by the terminal device, the network device may send fourth information to the terminal device to indicate whether the terminal device is allowed or not to perform uplink transmission at the first transmit power within the first frequency band or the first frequency band combination. Alternatively, the network device may indicate that the terminal device is allowed to perform uplink transmission at the first transmit power within a certain time period. Of course, in an embodiment of the present application, the network device may also allow the terminal device to perform uplink transmission at the first transmit power within the first frequency band or the first frequency band combination by default, without sending the fourth information.

[0144] In some implementations, the network device may determine whether to allow the terminal device to perform uplink transmission at the first transmit power within the first frequency band or the first frequency band combination based on whether the terminal device will cause interference to other terminal devices in the cell. If the network device determines that the terminal device will not cause interference to other terminal devices in the cell, the network device may indicate through fourth information that the terminal device is allowed to perform uplink transmission at the first transmit power within the first frequency band or the first frequency band combination. Conversely, if the network device determines that the terminal device will cause interference to other terminal devices in the cell, the network device may indicate through fourth information that the terminal device is not allowed to perform uplink transmission at the first transmit power within the first frequency band or the first frequency band combination.

[0145] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 10. The device embodiment of the present application is described in detail below in conjunction with Figures 11 to 13. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0146] FIG11 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device 1100 shown in FIG11 includes: a sending unit 1110 .

[0147] The sending unit 1110 is configured to send first information to a network device, where the first information is used to determine a first transmit power of the terminal device in a first frequency band and / or a first frequency band combination.

[0148] Wherein, if the first transmit power is the transmit power of the terminal device in the first frequency band, the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band;

[0149] If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

[0150] In a possible implementation, the first information includes second information, where the second information is used to indicate the transmission power capability of the terminal device.

[0151] In one possible implementation, the second information includes one or more of the following: the number of transmission channels of the terminal device corresponding to each power level in one or more power levels; the transmission power information corresponding to one or more carriers in the first frequency band combination; the transmission power information corresponding to one or more carriers in the first frequency band; the transmission power information of the first frequency band combination; and the transmission power information of the first frequency band.

[0152] In a possible implementation, the second information includes the number of transmission channels of the terminal device corresponding to the one or more power levels, and the transmission channels of the terminal device corresponding to the one or more power levels support simultaneous transmission.

[0153] In a possible implementation, the second information includes the transmit power information, and the transmit power information includes a power level and / or a maximum transmit power corresponding to the power level.

[0154] In a possible implementation manner, the first information includes third information, where the third information is used to indicate the first transmit power.

[0155] In one possible implementation, if the first transmission power is the transmission power of the terminal device in the first frequency band, the third information includes a first power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band, and / or a power change range associated with the first power change; if the first transmission power is the transmission power of the terminal device in the first frequency band combination, the third information includes a second power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band combination, and / or a power change range associated with the second power change.

[0156] In one possible implementation, the sending unit is also used to: send first indication information to the network device, the first indication information is used to indicate that the terminal device has a first capability, and the first capability includes uplink transmission at a transmission power higher than the maximum transmission power corresponding to the power level.

[0157] In one possible implementation, the first indication information is also used to indicate one or more of the following: the terminal device has the first capability within the target frequency band; the terminal device has the first capability within the target bandwidth; the terminal device has the first capability within the target bandwidth group.

[0158] In one possible implementation, the first transmission power is determined based on the total transmission power of one or more transmission channels, wherein the one or more transmission channels are transmission channels for the terminal device to simultaneously transmit within the first frequency band; or the one or more transmission channels are transmission channels for the terminal device to perform uplink transmission within the second frequency band of the first frequency band combination.

[0159] In a possible implementation, it also includes: a first receiving unit, used to receive a first request sent by the network device, where the first request is used for the first transmission power of the terminal device; the sending unit is also used to send the first information to the network device in response to the first request.

[0160] In a possible implementation, it also includes: a second receiving unit, used to receive fourth information sent by the network device, and the fourth information is used to indicate whether the terminal device is allowed or not to perform uplink transmission at the first transmission power within the first frequency band or the first frequency band combination.

[0161] FIG12 is a schematic diagram of a network device according to an embodiment of the present application. The network device 1200 shown in FIG12 includes a receiving unit 1210 .

[0162] The receiving unit 1210 is used to receive first information sent by a terminal device, where the first information is used to determine a first transmission power of the terminal device in a first frequency band and / or a first frequency band combination, wherein if the first transmission power is the transmission power of the terminal device in the first frequency band, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band; if the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

[0163] In a possible implementation, the first information includes second information, where the second information is used to indicate the transmission power capability of the terminal device.

[0164] In one possible implementation, the second information includes one or more of the following: the number of transmission channels of the terminal device corresponding to each power level in one or more power levels; the transmission power information corresponding to one or more carriers in the first frequency band combination; the transmission power information corresponding to one or more carriers in the first frequency band; the transmission power information of the first frequency band combination; and the transmission power information of the first frequency band.

[0165] In a possible implementation, the second information includes the number of transmission channels of the terminal device corresponding to the one or more power levels, and the transmission channels of the terminal device corresponding to the one or more power levels support simultaneous transmission.

[0166] In a possible implementation, the second information includes the transmit power information, and the transmit power information includes a power level and / or a maximum transmit power corresponding to the power level.

[0167] In a possible implementation manner, the first information includes third information, where the third information is used to indicate the first transmit power.

[0168] In one possible implementation, if the first transmission power is the transmission power of the terminal device in the first frequency band, the third information includes a first power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band, and / or a power change range associated with the first power change; if the first transmission power is the transmission power of the terminal device in the first frequency band combination, the third information includes a second power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band combination, and / or a power change range associated with the second power change.

[0169] In one possible implementation, the receiving unit is also used to receive first indication information sent by the terminal device, where the first indication information is used to indicate that the terminal device has a first capability, and the first capability includes uplink transmission at a transmission power higher than the maximum transmission power corresponding to the power level.

[0170] In one possible implementation, the first indication information is also used to indicate one or more of the following: the terminal device has the first capability within the target frequency band; the terminal device has the first capability within the target bandwidth; the terminal device has the first capability within the target bandwidth group.

[0171] In one possible implementation, the first transmission power is determined based on the total transmission power of one or more transmission channels, wherein the one or more transmission channels are transmission channels for the terminal device to simultaneously transmit within the first frequency band; or the one or more transmission channels are transmission channels for the terminal device to perform uplink transmission within the second frequency band of the first frequency band combination.

[0172] In a possible implementation, it also includes: a first sending unit, used to send a first request to the terminal device, where the first request is used for the first transmission power of the terminal device; and the receiving unit, used to receive the first information sent by the terminal device in response to the first request.

[0173] In a possible implementation, it also includes: a second sending unit, used to send fourth information to the terminal device, and the fourth information is used to indicate whether the terminal device is allowed or not to perform uplink transmission at the first transmission power within the first frequency band or the first frequency band combination.

[0174] In an optional embodiment, the sending unit 1110 may be a transceiver 1340. The terminal device 1100 may further include a processor 1310 and a memory 1320, as specifically shown in FIG13 .

[0175] In an optional embodiment, the sending unit 1210 may be a transceiver 1340. The network device 1200 may further include a processor 1310 and a memory 1320, as specifically shown in FIG13 .

[0176] Figure 13 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 13 indicate that the unit or module is optional. Device 1300 may be used to implement the method described in the above method embodiment. Device 1300 may be a chip, a terminal device, or a network device.

[0177] The device 1300 may include one or more processors 1310. The processor 1310 may support the device 1300 to implement the method described in the above method embodiment. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0178] The apparatus 1300 may further include one or more memories 1320. The memories 1320 store programs that can be executed by the processor 1310, causing the processor 1310 to perform the methods described in the above method embodiments. The memories 1320 may be independent of the processor 1310 or integrated into the processor 1310.

[0179] The apparatus 1300 may further include a transceiver 1330. The processor 1310 may communicate with other devices or chips via the transceiver 1330. For example, the processor 1310 may transmit and receive data with other devices or chips via the transceiver 1330.

[0180] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0181] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal device or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0182] The present application also provides a computer program that can be applied to a terminal device or network device provided in the present application, and enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0183] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0184] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0185] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0186] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0187] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0188] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0189] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0190] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0191] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0192] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0193] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0194] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer 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 can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can 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 can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0195] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: include: The terminal device sends first information to the network device, where the first information is used to determine a first transmit power of the terminal device in the first frequency band and / or the first frequency band combination. Wherein, if the first transmit power is the transmit power of the terminal device in the first frequency band, the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

2. The method according to claim 1, wherein The first information includes second information, and the second information is used to indicate the transmission power capability of the terminal device.

3. The method according to claim 2, wherein The second information includes one or more of the following: the number of transmit channels of the terminal device corresponding to each power level in one or more power levels; transmit power information corresponding to one or more carriers in the first frequency band combination; transmit power information corresponding to one or more carriers in the first frequency band; transmit power information of the first frequency band combination; Transmit power information of the first frequency band.

4. The method according to claim 3, wherein The second information includes the number of transmission channels of the terminal device corresponding to the one or more power levels, and the transmission channels of the terminal device corresponding to the one or more power levels support simultaneous transmission.

5. The method according to claim 3, wherein The second information includes the transmit power information, and the transmit power information includes a power level and / or a maximum transmit power corresponding to the power level.

6. The method according to any one of claims 1 to 5, wherein The first information includes third information, and the third information is used to indicate the first transmit power.

7. The method according to claim 6, wherein If the first transmit power is the transmit power of the terminal device in the first frequency band, the third information includes a first power change between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band, and / or a power change range associated with the first power change; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the third information includes a second power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band combination, and / or a power change range associated with the second power change.

8. The method according to any one of claims 1 to 7, wherein The method further comprises: The terminal device sends first indication information to the network device, where the first indication information is used to indicate that the terminal device has a first capability, where the first capability includes uplink transmission at a transmission power higher than the maximum transmission power corresponding to the power level.

9. The method according to claim 8, wherein The first indication information is further used to indicate one or more of the following: The terminal device has the first capability within the target frequency band; The terminal device has the first capability within the target bandwidth; The terminal device has the first capability within the target bandwidth group.

10. The method according to any one of claims 1 to 9, wherein The first transmit power is determined based on a total transmit power of one or more transmit channels, where the one or more transmit channels are transmit channels for simultaneous transmission by the terminal device within the first frequency band; or The one or more transmission channels are transmission channels for the terminal device to perform uplink transmission in the second frequency band of the first frequency band combination.

11. The method according to any one of claims 1 to 10, wherein The method further comprises: The terminal device receives a first request sent by the network device, where the first request is for the first transmit power of the terminal device; The terminal device sending the first information to the network device includes: In response to the first request, the terminal device sends the first information to the network device.

12. The method according to any one of claims 1 to 11, wherein The method further comprises: The terminal device receives fourth information sent by the network device, where the fourth information is used to indicate whether the terminal device is allowed or not to perform uplink transmission at the first transmission power within the first frequency band or the first frequency band combination.

13. A communication method, characterized in that: include: The network device receives first information sent by the terminal device, where the first information is used to determine a first transmit power of the terminal device in the first frequency band and / or the first frequency band combination. Wherein, if the first transmit power is the transmit power of the terminal device in the first frequency band, the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

14. The method according to claim 13, wherein The first information includes second information, and the second information is used to indicate the transmission power capability of the terminal device.

15. The method according to claim 14, wherein The second information includes one or more of the following: the number of transmit channels of the terminal device corresponding to each power level in one or more power levels; transmit power information corresponding to one or more carriers in the first frequency band combination; transmit power information corresponding to one or more carriers in the first frequency band; transmit power information of the first frequency band combination; Transmit power information of the first frequency band.

16. The method according to claim 15, wherein The second information includes the number of transmission channels of the terminal device corresponding to the one or more power levels, and the transmission channels of the terminal device corresponding to the one or more power levels support simultaneous transmission.

17. The method according to claim 15, wherein The second information includes the transmit power information, and the transmit power information includes a power level and / or a maximum transmit power corresponding to the power level.

18. The method according to any one of claims 13 to 17, wherein: The first information includes third information, and the third information is used to indicate the first transmit power.

19. The method according to claim 18, wherein If the first transmit power is the transmit power of the terminal device in the first frequency band, the third information includes a first power change between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band, and / or a power change range associated with the first power change; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the third information includes a second power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band combination, and / or a power change range associated with the second power change.

20. The method according to any one of claims 13 to 19, wherein The method further comprises: The network device receives first indication information sent by the terminal device, where the first indication information is used to indicate that the terminal device has a first capability, where the first capability includes performing uplink transmission at a transmission power higher than a maximum transmission power corresponding to the power level.

21. The method according to claim 20, wherein The first indication information is further used to indicate one or more of the following: The terminal device has the first capability within the target frequency band; The terminal device has the first capability within the target bandwidth; The terminal device has the first capability within the target bandwidth group.

22. The method according to any one of claims 13 to 21, wherein The first transmit power is determined based on a total transmit power of one or more transmit channels, where the one or more transmit channels are transmit channels for simultaneous transmission by the terminal device within the first frequency band; or The one or more transmission channels are transmission channels for the terminal device to perform uplink transmission in the second frequency band of the first frequency band combination.

23. The method according to any one of claims 13 to 22, wherein: The method further comprises: The network device sends a first request to the terminal device, where the first request is for the first transmit power of the terminal device; The network device receives first information sent by the terminal device, including: In response to the first request, the network device receives the first information sent by the terminal device.

24. The method according to any one of claims 13 to 23, wherein The method further comprises: The network device sends fourth information to the terminal device, where the fourth information is used to indicate whether the terminal device is allowed or not to perform uplink transmission at the first transmission power within the first frequency band or the first frequency band combination.

25. A terminal device, characterized in that: include: a sending unit, configured to send first information to a network device, where the first information is used to determine a first transmit power of the terminal device in the first frequency band and / or the first frequency band combination, Wherein, if the first transmit power is the transmit power of the terminal device in the first frequency band, the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

26. The terminal device according to claim 25, characterized in that The first information includes second information, and the second information is used to indicate the transmission power capability of the terminal device.

27. The terminal device according to claim 26, wherein: The second information includes one or more of the following: the number of transmit channels of the terminal device corresponding to each power level in one or more power levels; transmit power information corresponding to one or more carriers in the first frequency band combination; transmit power information corresponding to one or more carriers in the first frequency band; transmit power information of the first frequency band combination; Transmit power information of the first frequency band.

28. The terminal device according to claim 27, wherein: The second information includes the number of transmission channels of the terminal device corresponding to the one or more power levels, and the transmission channels of the terminal device corresponding to the one or more power levels support simultaneous transmission.

29. The terminal device according to claim 27, wherein: The second information includes the transmit power information, and the transmit power information includes a power level and / or a maximum transmit power corresponding to the power level.

30. The terminal device according to any one of claims 25 to 29, characterized in that: The first information includes third information, and the third information is used to indicate the first transmit power.

31. The terminal device according to claim 30, wherein: If the first transmit power is the transmit power of the terminal device in the first frequency band, the third information includes a first power change between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band, and / or a power change range associated with the first power change; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the third information includes a second power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band combination, and / or a power change range associated with the second power change.

32. The terminal device according to any one of claims 25 to 31, characterized in that: The sending unit is further configured to: Sending first indication information to the network device, wherein the first indication information is used to indicate that the terminal device has a first capability, wherein the first capability includes performing uplink transmission at a transmission power higher than the maximum transmission power corresponding to the power level.

33. The terminal device according to claim 32, wherein: The first indication information is further used to indicate one or more of the following: The terminal device has the first capability within the target frequency band; The terminal device has the first capability within the target bandwidth; The terminal device has the first capability within the target bandwidth group.

34. The terminal device according to any one of claims 25 to 33, characterized in that: The first transmit power is determined based on a total transmit power of one or more transmit channels, where the one or more transmit channels are transmit channels for simultaneous transmission by the terminal device within the first frequency band; or The one or more transmission channels are transmission channels for the terminal device to perform uplink transmission in the second frequency band of the first frequency band combination.

35. The terminal device according to any one of claims 25 to 34, characterized in that: Also includes: A first receiving unit, configured to receive a first request sent by the network device, where the first request is for the first transmit power of the terminal device; The sending unit is further configured to send the first information to the network device in response to the first request.

36. The terminal device according to any one of claims 25 to 35, characterized in that: Also includes: The second receiving unit is used to receive fourth information sent by the network device, where the fourth information is used to indicate whether the terminal device is allowed or not to perform uplink transmission at the first transmission power within the first frequency band or the first frequency band combination.

37. A network device, characterized in that: include: a receiving unit, configured to receive first information sent by a terminal device, wherein the first information is used to determine a first transmit power of the terminal device in a first frequency band and / or a first frequency band combination, Wherein, if the first transmit power is the transmit power of the terminal device in the first frequency band, the first transmit power is greater than the maximum transmit power corresponding to the power level of the first frequency band; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the first transmission power is greater than the maximum transmission power corresponding to the power level of the first frequency band combination.

38. The network device according to claim 37, wherein: The first information includes second information, and the second information is used to indicate the transmission power capability of the terminal device.

39. The network device according to claim 38, wherein: The second information includes one or more of the following: the number of transmit channels of the terminal device corresponding to each power level in one or more power levels; transmit power information corresponding to one or more carriers in the first frequency band combination; transmit power information corresponding to one or more carriers in the first frequency band; transmit power information of the first frequency band combination; Transmit power information of the first frequency band.

40. The network device according to claim 39, wherein: The second information includes the number of transmission channels of the terminal device corresponding to the one or more power levels, and the transmission channels of the terminal device corresponding to the one or more power levels support simultaneous transmission.

41. The network device according to claim 39, wherein: The second information includes the transmit power information, and the transmit power information includes a power level and / or a maximum transmit power corresponding to the power level.

42. The network device according to any one of claims 37 to 41, wherein: The first information includes third information, and the third information is used to indicate the first transmit power.

43. The network device according to claim 42, wherein: If the first transmit power is the transmit power of the terminal device in the first frequency band, the third information includes a first power change between the first transmit power and the maximum transmit power corresponding to the power level of the first frequency band, and / or a power change range associated with the first power change; If the first transmission power is the transmission power of the terminal device in the first frequency band combination, the third information includes a second power change between the first transmission power and the maximum transmission power corresponding to the power level of the first frequency band combination, and / or a power change range associated with the second power change.

44. The network device according to any one of claims 37 to 43, wherein: The receiving unit is also used to receive first indication information sent by the terminal device, where the first indication information is used to indicate that the terminal device has a first capability, and the first capability includes uplink transmission at a transmission power higher than the maximum transmission power corresponding to the power level.

45. The network device according to claim 44, wherein: The first indication information is further used to indicate one or more of the following: The terminal device has the first capability within the target frequency band; The terminal device has the first capability within the target bandwidth; The terminal device has the first capability within the target bandwidth group.

46. ​​The network device according to any one of claims 37 to 45, wherein: The first transmit power is determined based on a total transmit power of one or more transmit channels, where the one or more transmit channels are transmit channels for simultaneous transmission by the terminal device within the first frequency band; or The one or more transmission channels are transmission channels for the terminal device to perform uplink transmission in the second frequency band of the first frequency band combination.

47. The network device according to any one of claims 37 to 46, wherein: Also includes: A first sending unit, configured to send a first request to the terminal device, where the first request is for the first transmit power of the terminal device; The receiving unit is configured to receive the first information sent by the terminal device in response to the first request.

48. The network device according to any one of claims 37 to 47, wherein: Also includes: The second sending unit is used to send fourth information to the terminal device, where the fourth information is used to indicate whether the terminal device is allowed or not to perform uplink transmission at the first transmission power within the first frequency band or the first frequency band combination.

49. A terminal device, characterized in that: The terminal comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so as to enable the terminal to execute the method according to any one of claims 1 to 12.

50. A network device, characterized in that The network device comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so as to enable the network device to execute the method according to any one of claims 13 to 24.

51. A device, characterized in that The device comprises a processor configured to call a program from a memory so as to enable the device to execute the method according to any one of claims 1 to 24.

52. A chip, characterized in that: The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 24.

53. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 24.

54. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 24.

55. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 24.

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