Communication method and apparatus

Abstract

A communication method and apparatus, which are used for improving the flexibility of a power class used when any two bands in a band combination are concurrent. The method comprises: a terminal acquires first configuration information, the first configuration information being used for indicating an uplink switching band pair list, the uplink switching band pair list comprising a first band pair, and the first band pair comprising a first band and a second band; the terminal receives first scheduling information and second scheduling information, the first scheduling information being used for scheduling to send a first transmission on the first band, the second scheduling information being used for scheduling to send a second transmission on the second band, and the time-domain position of the first transmission overlapping with the time-domain position of the second transmission; and, on the basis of a first power class, the first power class and a second power class, or the second power class and third capability information, the terminal determines the sending power of the first transmission and the sending power of the second transmission.

Description

Communication method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on March 22, 2024, with application number 202410343178.X and invention name "A Communication Method and Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of mobile communication technologies, and in particular to a communication method and device. Background Art

[0004] In 5G new radio access technology (NR), supported terminal power classes (PCs) are defined for each device's operating frequency. These classes represent the device's maximum output power in any transmission band. For carrier aggregation (CA) scenarios, 5G NR defines CA power classes, which determine the device's maximum output power when operating concurrently on multiple frequency bands.

[0005] Currently, in a band combination containing three or more bands, the terminal can only use the CA power level to determine the maximum output power when operating concurrently on any two bands in the band combination, and its flexibility needs to be improved. Summary of the Invention

[0006] The present application provides a communication method and apparatus for improving the flexibility of power levels used concurrently on any two frequency bands in a frequency band combination.

[0007] In the first aspect, a communication method is provided. The method can be implemented by a first communication device. The first communication device can be a terminal device, or a component in the terminal device, for example, a terminal device. Among them, the components in the present application may include, for example, at least one of a chip, a chip system, a processor, a transceiver, a processing unit, or a transceiver unit. Taking the execution subject as an example, the method can be implemented by the following steps: the terminal obtains first configuration information, the first configuration information is used to indicate an uplink switching frequency band pair list, the uplink switching frequency band pair list contains a first frequency band pair, the first frequency band pair includes a first frequency band and a second frequency band; the terminal receives first scheduling information and second scheduling information, the first scheduling information is used to schedule the sending of a first transmission in the first frequency band, the second scheduling information is used to schedule the sending of a second transmission in the second frequency band, and the time domain position of the first transmission overlaps with the time domain position of the second transmission; the terminal determines the sending power of the first transmission and the sending power of the second transmission according to a first power level, the first power level corresponds to the maximum power level supported by the first frequency band pair; or, the terminal determines the sending power of the first transmission according to the first power level and the second power level. The transmitting power of the first transmission and the transmitting power of the second transmission, the first power level corresponds to the maximum power level supported by the first frequency band pair, the second power level corresponds to the maximum power level supported by the first frequency band combination, and the first frequency band combination includes the first frequency band, the second frequency band and at least one frequency band other than the first frequency band and the second frequency band; or, the terminal determines the transmitting power of the first transmission and the transmitting power of the second transmission according to the second power level and the third capability information, the second power level corresponds to the maximum power level supported by the first frequency band combination, the first frequency band combination includes the first frequency band, the second frequency band and at least one frequency band other than the first frequency band and the second frequency band, the third capability information, the third capability information is used to indicate: the power level of the first frequency band pair is allowed to exceed the second power level.

[0008] Based on the method described in the first aspect, the terminal can determine, for the first frequency band pair, the transmit power of the first transmission and the transmit power of the second transmission based on the first power level, the first power level and the second power level, or the second power level and the third capability information. In other words, the terminal can perform uplink parallel transmissions on the first frequency band pair based on the first power level, the first power level and the second power level, or the second power level and the third capability information. Since the terminal is no longer restricted to concurrent transmission at the second power level through the frequency band pairs in the first frequency band combination, this method can increase the flexibility of power level determination.

[0009] In one possible implementation, the terminal may also send at least one of the first information, the first capability information, and the second capability information; wherein, the first information includes supporting the first frequency band combination for uplink switching, and the first information also includes a list of frequency band pairs supported by the terminal, and the list of frequency band pairs supported by the terminal includes the first frequency band pair; the first capability information is used to indicate that the maximum power level corresponding to the supported first frequency band pair is the first power level, and the reporting granularity of the first capability information is per frequency band pair per frequency band combination; the second capability information is used to indicate that the maximum power level corresponding to the supported first frequency band combination is the second power level, and the reporting granularity of the second capability information is per frequency band combination.

[0010] Based on this implementation, the terminal can support uplink switching by reporting support for the first frequency band combination through the first information. In addition, the terminal can also report the first power level through the first capability information, and / or report the second power level through the second capability information. Among them, the present application allows the terminal to determine the transmission power using a power level that exceeds the second power level in the first frequency band pair. Therefore, if the terminal supports different power levels for multiple frequency band pairs in the first frequency band combination, the second power level can be the lower (or lowest) power level among the multiple power levels, so as to avoid the power level of the reported frequency band combination exceeding the maximum power level corresponding to the frequency band pair.

[0011] In one possible implementation, determining the transmit power of the first transmission and the transmit power of the second transmission based on the first power level and the second power level includes: if the first power level is different from the second power level, determining the transmit power of the first transmission and the transmit power of the second transmission based on the first power level. That is, if the first power level is higher or lower than the second power level, the transmit power of the first transmission and the transmit power of the second transmission may be determined based on the first power level.

[0012] Based on this implementation, the terminal can flexibly determine the power level.

[0013] In a possible implementation, the first information further includes that the switching option supported by the first frequency band pair is dual uplink.

[0014] Based on this implementation, the switching option of dual uplink indicates that the terminal supports uplink concurrency in the first frequency band. At this time, the terminal can determine the transmit power of the first transmission and the transmit power of the second transmission by the method shown in the first aspect.

[0015] In one possible implementation, when the first capability information does not exist, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on the second power level; or, when the first capability information does not exist, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on a predefined or default power level, where the predefined or default power level is, for example, level 3 (such as 23 decibel milliwatts (dBm)); or, when the first capability information does not exist, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on the maximum power level supported by a second frequency band combination, where the frequency bands in the second frequency band combination are the first frequency band and the second frequency band.

[0016] Based on this implementation, if the terminal does not report the first capability information, the terminal can determine the transmit power of the first transmission and the transmit power of the second transmission based on the second power level, a predefined or default power level, or the maximum power level supported by the second frequency band combination, further improving the flexibility of determining the power level when performing uplink concurrency on the first frequency band. This method can save the signaling overhead of the terminal reporting capabilities by setting a state to the default state without requiring the terminal to report.

[0017] In one possible implementation, the uplink switching frequency band pair list also includes a second frequency band pair, and the second frequency band pair includes a third frequency band and a fourth frequency band; the first information also includes reporting that the switching option supported by the second frequency band pair is switching uplink, then the terminal does not report the fourth capability information, and the fourth capability information is used to indicate the maximum power level corresponding to the supported second frequency band pair, and the reporting granularity of the fourth capability information is per frequency band pair per frequency band combination.

[0018] Based on this implementation method, if the switching option supported by the terminal in the second frequency band pair is switching uplink, that is, the terminal does not support uplink concurrency in the second frequency band pair, then the terminal does not need to report the fourth capability information, and does not need to report the reporting granularity corresponding to the second frequency band pair, which is the maximum power level of each frequency band combination for each frequency band pair.

[0019] In one possible implementation, the terminal can also determine the transmit power of the uplink transmission sent by the terminal on the third frequency band based on the third power level, where the third power level is the maximum power level corresponding to the third frequency band, and the granularity of reporting the third power level is per frequency band.

[0020] In a possible implementation, the terminal may further send fifth capability information, where the fifth capability information is used to indicate that the maximum power level corresponding to the supported third frequency band is the third power level, and the reporting granularity of the fifth capability information is per frequency band.

[0021] In one possible implementation, the terminal may determine the transmit power of the first transmission based on a fourth power level or a fifth power level, the fourth power level being the maximum power level corresponding to the first frequency band, and the granularity of reporting the fourth power level being per frequency band, the fifth power level being the maximum power level corresponding to the first frequency band, and the granularity of reporting the fifth power level being per frequency band, per frequency band combination, or per feature set; and / or, the terminal may determine the transmit power of the second transmission based on a sixth power level or a seventh power level, the sixth power level being the maximum power level corresponding to the second frequency band, and the granularity of reporting the sixth power level being per frequency band, the seventh power level being the maximum power level corresponding to the second frequency band, and the granularity of reporting the seventh power level being per frequency band, per frequency band combination, or per feature set.

[0022] Based on this implementation, the flexibility of determining the power level when performing uplink concurrency in the first frequency band can be further improved. The sum of the transmit power of the first transmission determined according to the fourth power level or the fifth power level and the transmit power of the second transmission determined according to the fourth power level or the fifth power level can be greater than the second power level. That is, when the sum of the transmit power of the first transmission determined according to the fourth power level or the fifth power level and the transmit power of the second transmission determined according to the fourth power level or the fifth power level is greater than the second power level, the terminal can determine the transmit power of the first transmission according to the fourth power level or the fifth power level, and determine the transmit power of the second transmission according to the fourth power level or the fifth power level. Therefore, the transmit power of the first transmission and the transmit power of the second transmission determined according to the second power level and the third capability information can be greater than the second transmit power.

[0023] In one possible implementation, the terminal may also send at least one of the fifth capability information, the sixth capability information, the seventh capability information or the eighth capability information; wherein the fifth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fourth power level, and the reporting granularity of the fifth capability information is per frequency band; the sixth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fifth power level, and the reporting granularity of the sixth capability information is per frequency band, per frequency band combination or per feature set; the seventh capability information is used to indicate that the maximum power level corresponding to the supported second frequency band is the sixth power level, and the reporting granularity of the seventh capability information is per frequency band; the eighth capability information is used to indicate that the maximum power level corresponding to the supported second frequency band is the seventh power level, and the reporting granularity of the eighth capability information is per frequency band, per frequency band combination or per feature set.

[0024] Based on this implementation, the terminal may report the fourth power level through the fifth capability information, the fifth power level through the sixth capability information, the sixth power level through the seventh capability information, and / or the seventh power level through the eighth capability information.

[0025] In a second aspect, a communication method is provided. The method may be implemented by a second communication device. In this application, the second communication device may be an access network device. The access network device may be an access network device or a component within the access network device. The component in this application may include, for example, at least one of a chip, a chip system, a processor, a transceiver, a processing unit, or a transceiver unit. The access network device may be, for example, a base station. The access network device may also be referred to as a network device, and the access network device may also be referred to as a network device. Taking the execution subject as a network device as an example, the method can be implemented through the following steps: the network device can send first configuration information, the first configuration information is used to indicate an uplink switching frequency band pair list, the uplink switching frequency band pair list contains a first frequency band pair, the first frequency band pair includes a first frequency band and a second frequency band; the network device can also send first scheduling information and second scheduling information, the first scheduling information is used to schedule the sending of a first transmission in the first frequency band, the second scheduling information is used to schedule the sending of a second transmission in the second frequency band, and the time domain position of the first transmission overlaps with the time domain position of the second transmission; wherein the transmission power of the first transmission and the transmission power of the second transmission are determined according to a first power level, and the first power level corresponds to the maximum power level supported by the first frequency band pair; or, the transmission power of the first transmission and the transmission power of the second transmission are determined according to a first power level, and the first power level corresponds to the maximum power level supported by the first frequency band pair; or, the transmission power of the first transmission and the transmission power of the second transmission are determined according to a first power level, and the first power level corresponds to the maximum power level supported by the first frequency band pair; The transmit power is determined based on a first power level and a second power level, wherein the first power level corresponds to the maximum power level supported by the first frequency band pair, and the second power level corresponds to the maximum power level supported by the first frequency band combination, and the first frequency band combination includes the first frequency band, the second frequency band, and at least one frequency band other than the first frequency band and the second frequency band; or, the transmit power of the first transmission and the transmit power of the second transmission are determined based on the second power level and third capability information, wherein the second power level corresponds to the maximum power level supported by the first frequency band combination, and the first frequency band combination includes the first frequency band, the second frequency band, and at least one frequency band other than the first frequency band and the second frequency band, and the third capability information, and the third capability information is used to indicate: the power level of the first frequency band pair is allowed to exceed the second power level.

[0026] In one possible implementation, the network device may also receive at least one of the first information, the first capability information, and the second capability information; wherein, the first information includes supporting the first frequency band combination for uplink switching, and the first information also includes a terminal supported frequency band pair list, and the terminal supported frequency band pair list includes the first frequency band pair; the first capability information is used to indicate that the maximum power level corresponding to the supported first frequency band pair is the first power level, and the reporting granularity of the first capability information is per frequency band pair per frequency band combination; the second capability information is used to indicate that the maximum power level corresponding to the supported first frequency band combination is the second power level, and the reporting granularity of the second capability information is per frequency band combination.

[0027] In one possible implementation, the transmit power of the first transmission and the transmit power of the second transmission are determined based on a first power level, including: the first power level is different from the second power level, and the transmit power of the first transmission and the transmit power of the second transmission are determined based on the first power level.

[0028] In a possible implementation, the first information further includes that the switching option supported by the first frequency band pair is dual uplink.

[0029] In one possible implementation, when the first capability information does not exist, the transmit power of the first transmission and the transmit power of the second transmission are determined based on the second power level; or, when the first capability information does not exist, the transmit power of the first transmission and the transmit power of the second transmission are determined based on a predefined power level; or, when the first capability information does not exist, the transmit power of the first transmission and the transmit power of the second transmission are determined based on the maximum power level supported by a second frequency band combination, and the frequency bands in the second frequency band combination are the first frequency band and the second frequency band.

[0030] In one possible implementation, the uplink switching frequency band pair list also includes a second frequency band pair, and the second frequency band pair includes a third frequency band and a fourth frequency band; the first information also includes reporting that the switching option supported by the second frequency band pair is switching uplink, and the transmission power of the uplink transmission sent by the terminal in the third frequency band is determined according to a third power level, and the third power level is the maximum power level corresponding to the third frequency band, and the granularity of the third power level reporting is per frequency band.

[0031] In a possible implementation, the network device may further receive fifth capability information, where the fifth capability information is used to indicate that the maximum power level corresponding to the supported third frequency band is the third power level, and the reporting granularity of the fifth capability information is per frequency band.

[0032] In one possible implementation, the transmit power of the first transmission and the transmit power of the second transmission are determined based on the second power level and the third capability information, and also include: the transmit power of the first transmission is determined based on the fourth power level or the fifth power level, the fourth power level is the maximum power level corresponding to the first frequency band, and the granularity of reporting the fourth power level is per frequency band, the fifth power level is the maximum power level corresponding to the first frequency band, and the granularity of reporting the fifth power level is per frequency band, per frequency band combination, or per feature set; and / or, the transmit power of the second transmission is determined based on the sixth power level or the seventh power level, the sixth power level is the maximum power level corresponding to the second frequency band, and the granularity of reporting the sixth power level is per frequency band, the seventh power level is the maximum power level corresponding to the second frequency band, and the granularity of reporting the seventh power level is per frequency band, per frequency band combination, or per feature set.

[0033] In one possible implementation, the network device may also receive at least one of fifth capability information, sixth capability information, seventh capability information or eighth capability information; wherein the fifth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fourth power level, and the reporting granularity of the fifth capability information is per frequency band; the sixth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fifth power level, and the reporting granularity of the sixth capability information is per frequency band, per frequency band combination or per feature set; the seventh capability information is used to indicate that the maximum power level corresponding to the supported second frequency band is the sixth power level, and the reporting granularity of the seventh capability information is per frequency band; the eighth capability information is used to indicate that the maximum power level corresponding to the supported second frequency band is the seventh power level, and the reporting granularity of the eighth capability information is per frequency band, per frequency band combination or per feature set.

[0034] The beneficial effects of the above second aspect and its various possible implementations can refer to the description of the beneficial effects of the first aspect and its corresponding implementations, and will not be repeated here.

[0035] In a third aspect, a communication device is provided. The device can implement the method described in any possible implementation of any of the first and second aspects. The device has the functions of the first or second communication device described above. The device can be, for example, a terminal device, a functional module in a terminal device, a network device, or a functional module in a network device.

[0036] In an optional implementation, the device may include a module corresponding to the method / operation / step / action described in any possible implementation of any aspect of the first aspect to the second aspect, and the module may be a hardware circuit, or software, or a hardware circuit combined with software. In an optional implementation, the device includes a processing unit (sometimes also referred to as a processing module) and a communication unit (sometimes also referred to as a transceiver module, a communication module, etc.). The transceiver unit can implement a sending function and a receiving function. When the transceiver unit implements the sending function, it can be called a sending unit (sometimes also referred to as a sending module). When the transceiver unit implements the receiving function, it can be called a receiving unit (sometimes also referred to as a receiving module). The sending unit and the receiving unit can be the same functional module, which is called a transceiver unit, and the functional module can implement a sending function and a receiving function; or, the sending unit and the receiving unit can be different functional modules, and the transceiver unit is a general term for these functional modules.

[0037] Exemplarily, when the apparatus is used to execute the method described in any one of the first aspect to the second aspect, the apparatus may include a communication unit and a processing unit.

[0038] In a fourth aspect, an embodiment of the present application also provides a communication device, comprising a processor for executing a computer program (or computer-executable instructions) stored in a memory. When the computer program (or computer-executable instructions) is executed, the device executes the method described in any possible implementation of any one of the first to second aspects.

[0039] In one possible implementation, the processor and memory are integrated;

[0040] In another possible implementation, the memory is located outside the communication device.

[0041] The communication device also includes a communication interface, which is used for the communication device to communicate with other devices, such as sending or receiving data and / or signals. Exemplarily, the communication interface can be a transceiver, circuit, bus, module or other type of communication interface.

[0042] In a fifth aspect, a computer-readable storage medium is provided, which is used to store computer programs or instructions. When the computer-readable storage medium is executed, the method described in any possible implementation of any aspect from the first to the second aspect and the method shown in any possible implementation thereof are implemented.

[0043] In a sixth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the method described in any possible implementation of any one of the first to second aspects to be implemented.

[0044] In a seventh aspect, an embodiment of the present application further provides a communication device for executing the method described in any possible implementation of any one of the first to second aspects above.

[0045] In an eighth aspect, a chip system is provided, comprising a circuit (or, understood as, the chip system comprising a processor, which may comprise a circuit, etc.), and may further comprise an input / output interface. The input / output interface may be used to input messages or to output messages. The input / output interface may be the same interface, i.e., the same interface may be capable of both sending and receiving functions; or, the input / output interface may comprise an input interface and an output interface, with the input interface being used to implement the receiving function, i.e., for receiving messages, and the output interface being used to implement the sending function, i.e., for sending messages. The circuit may comprise a logic circuit and / or an analog circuit. The circuit may be used to perform the operations described in any possible implementation of any of the first to second aspects above, except for the sending and receiving functions; the circuit may also be used to transmit messages to the input / output interface, or to receive messages from other communication devices via the input / output interface. The chip system may be used to implement the method described in any possible implementation of any of the first to second aspects above. The chip system may consist of a chip, or may include a chip and other discrete components.

[0046] Optionally, the chip system may further include a memory or a circuit. The memory may be used to store instructions, and the memory or the circuit may call the instructions stored in the memory to implement corresponding functions.

[0047] In the ninth aspect, a communication method is provided, which may include the method implemented by the first communication device as shown in the first aspect and any possible implementation thereof, and the method implemented by the second communication device as shown in the second aspect and any possible implementation thereof.

[0048] In a tenth aspect, a communication system is provided, which may include a first communication device and a second communication device. The first communication device may be used to implement the method of the first aspect and any possible implementation thereof, and the second communication device may be used to implement the method of the second aspect and any possible implementation thereof.

[0049] The technical effects brought about by the above third to tenth aspects can be found in the description of the beneficial effects of the corresponding schemes in the above first to second aspects, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] FIG1 is a schematic diagram of the architecture of a wireless communication system;

[0051] FIG2 is a flow chart of a communication method provided in an embodiment of the present application;

[0052] FIG3 is a schematic diagram of the structure of first information provided in an embodiment of the present application;

[0053] FIG4 is a schematic diagram of the structure of first capability information provided in an embodiment of the present application;

[0054] FIG5 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0055] FIG6 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] The present application provides a communication method and apparatus. The method and apparatus are based on the same inventive concept. Since the method and apparatus solve similar problems, the implementation of the apparatus and method can refer to each other, and the repetitive parts will not be repeated.

[0057] Figure 1 is a schematic diagram of the architecture of a communication system used in an embodiment of the present application. As shown in Figure 1, the communication system includes an access network 100 and a core network 200. Optionally, the communication system may also include the Internet 300. The radio access network (RAN) 100 may include at least one RAN node (such as 110a and 110b in Figure 1) and may also include at least one terminal (such as 120a-120j in Figure 1). The terminal is connected to a radio access network device (or simply referred to as an access network device) via wireless communication, and the radio access network device is connected to the core network via wireless or wired communication. The core network device and the radio access network device may be independent and different physical devices, or the functions of the core network device and the logical functions of the radio access network device may be integrated into the same physical device, or a physical device may integrate some of the functions of the core network device and some of the functions of the radio access network device. Terminals and radio access network devices may be connected to each other via wired or wireless communication. FIG1 is only a schematic diagram. It is understood that, in addition to the access network equipment, the communication system may also include other network equipment, such as wireless relay equipment and wireless backhaul equipment, which are not shown in FIG1 .

[0058] In this application, a network device is a network-side device with transceiver functions. For example, a network device may be a device in a RAN that provides priority and / or wireless communication functions for a terminal device, referred to as a RAN device. The RAN may be an access network in the 3rd Generation Partnership Project (3GPP), for example, 4G, 5G, or a future-oriented sixth generation (6G) mobile communication network. The RAN may also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (CRAN), or a communication network of two or more of the above networks. RAN equipment can be a base station in a Long Term Evolution (LTE) or Long Term Evolution Advanced (LTE-A) communication system, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation nodeB (gNB) in a fifth-generation (5G) mobile communication system, a next-generation base station in a sixth-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system, a long-range radio (LoRa) system, or a connected vehicle system. RAN equipment can also be a module or unit that performs some of the functions of a base station, such as a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The CU here completes the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the base station's radio link control layer and medium access control (MAC) layer, and can also complete part of the physical layer or all of the physical layer. For detailed descriptions of the above protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP).The CU and DU can be set up separately, or they can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). In different systems, CU, DU, or RU may have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, and RU may also be called O-RU. Any of the CU (or CU-CP, CU-UP), DU, and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The radio access network device may be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), a relay node, a donor node, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the radio access network device. For the convenience of description, network equipment can be used as an abbreviation of wireless access network equipment, and base station can be used as an example of wireless access network equipment.

[0059] It is understood that the access network device may include one or more of CU, DU, and AAU. In addition, the CU may be classified as a network device in the access network or as a network device in the core network (CN), which is not limited in this application.

[0060] A terminal is a device with wireless transceiver capabilities that can send signals to or receive signals from a base station. A terminal can also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, smart home, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, aircraft, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0061] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem that includes the base station functions. The control subsystem that includes the base station functions here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or modem) in the terminal, or by a device that includes the terminal functions.

[0062] In this application, the base station sends a downlink (DL) signal or downlink information to the terminal, and the downlink information is carried on a downlink channel; the terminal sends an uplink (UL) signal or uplink information to the base station, and the uplink information is carried on an uplink channel.

[0063] It is understood that the roles of base stations and terminals in this application can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. For terminals 120j that access the wireless access network 100 via 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, that is, communication between 110a and 120i is conducted via a wireless air interface protocol. Of course, communication between 110a and 120i can also be conducted via a base station-to-base station interface protocol. In this case, 120i is also a base station relative to 110a. Therefore, base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be referred to as communication devices with base station functions, and 120a-120j in Figure 1 can be referred to as communication devices with terminal functions.

[0064] In this application, base stations are used as an example of access network devices. Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0065] In this application, network equipment may also include CN equipment. Core network elements may include mobility management elements, which are mainly used for mobility management and access management. In a 5G communication system, the access management element may be an access and mobility management function (AMF), which mainly performs functions such as mobility management, access authentication or authorization.

[0066] In future communication systems, such as 6G communication systems, the mobility management network element may still use the name it uses in the 5G communication system, or may have other names, which are not limited in this embodiment of the present application. The functions of the above network elements or devices may be completed by an independent network element or by multiple network elements. In actual deployment, the network elements in the core network may be deployed on the same or different physical devices.

[0067] It is understood that the mobility management network element can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualized function instantiated on a platform (e.g., a cloud platform). Optionally, the above network element or function can be implemented by a single device, or by multiple devices, or as a functional module within a single device, and this is not specifically limited in the embodiments of the present application.

[0068] At present, in the 5G new wireless access technology, the terminal power level supported by the terminal device is defined for its operating frequency, and the terminal power level is used to define the maximum output power of the terminal in any transmission frequency band in the NR carrier channel frequency band (or bandwidth). This power level can be called the power level per band (perBand). The power measurement period is at least one subframe, and the subframe length is, for example, 1 millisecond (ms). The terminal can use the terminal power level to determine the maximum output power of the single carrier configuration, and the network device can adjust the power parameters of the next scheduled transmission based on the maximum output power of the single carrier configuration reported by the terminal and the power headroom report (PHR) and other information. In this application, "bandwidth" and "frequency band" or "frequency band" can be interchangeable.

[0069] The reporting granularity of the terminal power level is per frequency band. The reporting granularity is per frequency band, which may mean that the terminal reports the terminal power level for each frequency band.

[0070] 5G NR also defines different maximum output powers for different power levels. For example, some operating frequency bands of terminal devices support power level 3, with a corresponding maximum terminal power of 23dBm; other operating frequency bands of terminal devices support power level 2, with a corresponding maximum terminal power of 26dBm; and other operating frequency bands of terminal devices support power level 1.5, with a corresponding maximum terminal power of 29dBm.

[0071] For carrier aggregation (CA) scenarios, 5G NR defines CA power levels, including intra-band carrier aggregation power levels and inter-band carrier aggregation power levels. In the inter-band CA scenario, the terminal supports simultaneous transmission in a maximum of two frequency bands in the frequency band combination. In the inter-band CA power level, the maximum output power of the terminal takes into account all carriers in different frequency bands. If each frequency band uses different RF channels, the maximum output power of the terminal is the sum of the maximum output powers of each RF channel. The reporting granularity of CA power level capability is per frequency band combination. The reporting granularity is per frequency band combination, which may mean that the terminal reports the terminal power level for each frequency band combination. In addition, 5G NR also defines the supported uplink inter-band carrier aggregation power levels for two-band uplink carrier aggregation configurations. In other words, 5G NR currently defines terminal power levels for two or more carrier aggregations, which respectively identify the maximum output power of the terminal transmitted in multi-carrier aggregation scenarios.

[0072] In addition, 5G NR also defines the power level of a feature set, which is used to indicate the power level of a frequency band in a frequency band combination of a terminal. The reporting granularity of the power level of a feature set is per frequency band per frequency band combination. In this application, the reporting granularity is per frequency band per frequency band combination, which may mean that the terminal can report the power level of the feature set for each frequency band in each frequency band combination. The reporting granularity of per frequency band per frequency band combination can also be described alternatively as the reporting granularity is a feature set. In the CA scenario, if the terminal transmits only in one frequency band in the frequency band combination, the terminal uses the power level based on the feature set to determine the maximum transmit power.

[0073] In this application, the transmission power can also be described as transmission power, or wireless transmission power or radio frequency transmission power, etc., without specific limitation.

[0074] Currently, the terminal also supports dynamic uplink switching (also known as uplink switching or handover) within a band combination containing three or four bands. The terminal reports all band pairs supported by the band combination. Any band pair includes two bands in the band combination.

[0075] For example, if the terminal supports the frequency band combinations of Band A, Band B, and Band C, the terminal reports the supported frequency band pairs as Band Pair 1, Band Pair 2, and Band Pair 3. Bands A and B are in Band Pair 1, Band Pair 2, and Band C are in Band Pair 3, and Bands B and C are in Band Pair 3.

[0076] For example, the frequency band combination CA_n1A-n3A-n78A includes frequency band n1, frequency band n3, and frequency band n78. The frequency band pairs corresponding to this frequency band combination include: a frequency band pair consisting of n1 and n3 (the corresponding UL CA configuration is UL CA_n1A-n3A), a frequency band pair consisting of n1 and n78 (the corresponding UL CA configuration is UL CA_n1A-n78A), and a frequency band pair consisting of n3 and n78 (the corresponding UL CA configuration is UL CA_n3A-n78A). A terminal may support different concurrent power levels for different frequency band pairs. For example, the maximum output power of the terminal when concurrently operating on the frequency bands consisting of n1 and n3 may be the power corresponding to power level 3, and the maximum output power of the terminal when concurrently operating on the frequency band pair consisting of n1 and n78 and the maximum output power of the terminal when concurrently operating on the frequency band pair consisting of n3 and n78 may be the power corresponding to power level 2.

[0077] Currently, in carrier aggregation band combinations containing three or more frequency bands, terminals can only use the power level corresponding to the carrier aggregation band combination to determine the maximum output power when concurrently operating on two frequency bands in the band combination. Because different band pairs in carrier aggregation can support different power levels, using only the power level corresponding to the band combination to determine the maximum output power when concurrently operating on a band pair is insufficiently flexible and may result in reduced uplink transmission performance.

[0078] For example, the frequency band combination includes frequency band n1, frequency band n3, and frequency band n78. The maximum output power of the terminal during concurrent use of the frequency bands consisting of n1 and n3 is the power corresponding to power level 3. The maximum output power of the terminal during concurrent use of the frequency band pair consisting of n1 and n78 and the maximum output power during concurrent use of the frequency band pair consisting of n3 and n78 are the power corresponding to power level 2. If the terminal reports the power level corresponding to the frequency band combination as power level 3, the power level of the terminal during concurrent use of any frequency band pair corresponding to the frequency band combination is level 3. That is, the terminal cannot use the maximum power level 2 for transmission on the frequency band pair consisting of n1 and n78 or the frequency band pair consisting of n3 and n78, resulting in power waste. If the terminal reports the power level corresponding to the frequency band combination as power level 2, the terminal does not actually support concurrent use of level 2 on the frequency band consisting of n1 and n3.

[0079] The present application provides a communication method that can be implemented by a first communication device and a second communication device. In various embodiments of the present application, the first communication device can be a terminal, or a chip, processor, transceiver module, or other components in the terminal. In various embodiments of the present application, the second communication device can be a communication device for providing network access to the terminal, such as a base station or other network device. Alternatively, the second communication device can be a chip, processor, transceiver module, or other components in the network device. The method is described below in conjunction with FIG2 . FIG2 describes the method using a terminal and a network device as the execution entities.

[0080] As shown in FIG2 , the communication method may include the following steps:

[0081] S101: A network device sends first configuration information. Correspondingly, a terminal obtains the first configuration information from the network device.

[0082] In this application, the term "sending" information can be replaced by the term "outputting" information. For example, "outputting" can refer to a communication device sending information to another communication device. For another example, "outputting" can refer to a baseband unit in a communication device outputting information to the radio frequency unit of the communication device. For another example, "outputting" can refer to a radio frequency unit in a communication device sending information to another communication device via an air interface or other interface.

[0083] In S101, the first configuration information is used to indicate an uplink switching frequency band pair list. The uplink switching frequency band pair list may contain at least one frequency band pair. The uplink switching frequency band pair list is used to indicate at least one frequency band pair. Any frequency band pair is a frequency band pair for uplink switching of a terminal configured by a network device. In the present application, a frequency band pair can be understood as consisting of two frequency bands before and after a radio frequency chain switching, wherein there is a radio frequency chain switching action and the switching time is included. In addition, the frequency band pair can also be understood as that the UE can simultaneously send uplink transmissions on the two frequency bands included in the frequency band pair, that is, the terminal performs uplink concurrency on the two frequency bands. Among them, uplink concurrency refers to a state in the uplink switching process.

[0084] It can be understood that the uplink switching frequency band pair list can be a set of at least one frequency band pair supported by the terminal for uplink switching, so it can also be replaced by names such as uplink switching frequency band pair set or uplink switching frequency band pair group, which is not specifically limited in this application.

[0085] As an example, a list of uplink switching frequency band pairs is shown in Table 1. Table 1 shows the frequency band pairs corresponding to the frequency band combination CA_n1A-n3A-n78A. Each row in Table 1 represents a frequency band pair.

[0086] Table 1 Uplink switching frequency band pair list

[0087] Optionally, before S101, the terminal may send first information to the network device, where the first information includes supporting the first frequency band combination for uplink switching.

[0088] The first information may also include a list of supported frequency band pairs, including all uplink switching frequency band pairs corresponding to the first frequency band combination. The uplink switching frequency band pair list configured by the network is determined based on the supported frequency band pair list. For example, the network device may determine the frequency band pairs in the configured uplink switching frequency band pair list based on the frequency band pairs in the frequency band pair list supported by the terminal. For another example, the frequency band pairs in the uplink switching frequency band pair list may be included in the frequency band pair list supported by the terminal.

[0089] Taking Table 2 as an example, the supported frequency band pair list reported by the terminal may include the frequency band pairs in Table 2.

[0090] Table 2 List of supported frequency band pairs

[0091] It can be understood that the frequency band pairs in the uplink switching frequency band pair list are part or all of the frequency band pairs in the supported frequency band pair list. For example, if Table 3 does not include the frequency band pair consisting of n1 and n3, then Table 1 does not include the frequency band pair consisting of n1 and n3.

[0092] It is understood that the above-mentioned uplink switching frequency band pair list includes the first frequency band pair, and the terminal supported frequency band pair list may also include the first frequency band pair. In this application, the first frequency band pair includes the first frequency band and the second frequency band. The first frequency band and the second frequency band are two frequency bands supported by the terminal for parallel transmission.

[0093] In addition, the first frequency band and the second frequency band belong to a first frequency band combination of the terminal. The first frequency band combination also includes at least one frequency band other than the first and second frequency bands. In other words, the first frequency band combination includes at least three frequency bands. The first frequency band combination may be a frequency band combination configured by a network device, or the terminal supports carrier aggregation in the first frequency band combination.

[0094] S102: The network device sends first scheduling information and second scheduling information, wherein the first scheduling information is used to schedule the sending of a first transmission in the first frequency band, and the second scheduling information is used to schedule the sending of a second transmission in the second frequency band, and the time domain position of the first transmission overlaps the time domain position of the second transmission.

[0095] In this application, the overlapping of two time domain positions includes the overlapping of part or all of the time domain positions of the two time domain positions. In other words, the time domain position of the first transmission and the time domain position of the second transmission partially or completely overlap. At least one time domain symbol in the time domain resources occupied by the first transmission and the second transmission overlaps.

[0096] In S102, the network device may schedule the terminal to perform parallel transmission in a first frequency band and a second frequency band supporting parallel transmission according to the first scheduling information and the second scheduling information.

[0097] Optionally, the time domain distance between the end symbol of the first transmission scheduled by the network and the start symbol of the second transmission is no greater than a first switching interval. The first switching interval is the switching interval corresponding to the first frequency band pair reported by the terminal, or the switching interval corresponding to the first frequency band pair configured by the network.

[0098] It can be understood that the first scheduling information and / or the second scheduling information may be downlink control information (DCI).

[0099] S103: The terminal sends a first transmission and a second transmission.

[0100] The first transmission and / or the second transmission may include data, signaling, or information. Sending the first transmission may refer to sending at least one of data, signaling, or information, which is not specifically limited in this application. Similarly, sending the second transmission may refer to sending at least one of data, signaling, or information.

[0101] In S103, the transmit power of the first transmission and the transmit power of the second transmission may be determined according to the first power level, or may be determined according to the first power level and the second power level, or may be determined according to the second power level and third capability information.

[0102] In other words, in S103, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission according to the first power level, or the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission according to the first power level and the second power level, or the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission according to the second power level and the third capability information. It can be understood that the power level in this application can be used to represent (or to determine) the maximum output (or transmit) power of the terminal.

[0103] The first power level, the second power level and the third capability information are described below respectively.

[0104] (1) The first power level corresponds to the maximum power level supported by the first frequency band.

[0105] The first power level corresponds to the maximum output power of the terminal when transmitting on the first frequency band pair in the first frequency band combination. For example, the first power level corresponds to the maximum output power of the terminal when transmitting on the first frequency band pair in parallel.

[0106] Optionally, the terminal may report first capability information to the network device before S101, indicating that the maximum power level corresponding to the first frequency band pair supported by the terminal is the first power level. For example, the terminal may report the first capability information to the network device during the capability reporting phase before S101. The power level of the first frequency band supported by the terminal may include multiple power levels, and the first power level may be the maximum power level among the multiple power levels. The reporting granularity of the first capability information is per frequency band pair and per frequency band combination.

[0107] In the present application, the reporting granularity is per band pair per band combination, which means that the terminal reports the first capability information for each (or one) band pair corresponding to each band combination, or in other words, the first capability information is reported for each band pair per band combination, that is, each band pair of each band combination can correspond to different first capability information. Among them, the first capability information can be called per band pair per band combination (perBandPairperBandCombination) capability information. The perBandPairperBandCombination capability information can be used to indicate the power level of one or more band pairs corresponding to the band combination, that is, the perBandPairperBandCombination capability information can be used to report the power level of the per band pair per band combination granularity. For example, if the number of band pairs is 3, the perBandPairperBandCombination capability information can be used to indicate the first power levels of the three band pairs respectively. For example, the value of the perBandPairperBandCombination capability information can include {pc1dot5, pc2, pc3}. Among them, pc1dot5 may indicate that the first power level of frequency band pair 1 is power level 1.5, pc2 may indicate that the first power level of frequency band pair 2 is power level 2, and pc3 may indicate that the first power level of frequency band pair 3 is power level 3.

[0108] Optionally, the terminal may report the first capability information for some or all of the frequency band pairs corresponding to the first frequency band combination. For example, among the frequency band pairs corresponding to the first frequency band combination, there is a frequency band pair that does not support uplink switching. The terminal may report the first capability information corresponding to one or more frequency band pairs other than the frequency band pair that does not support uplink switching. For another example, the terminal may report the first capability information corresponding to all frequency band pairs corresponding to the first frequency band combination.

[0109] For example, in the first frequency band combination, the terminal supports multiple frequency band pairs, and the terminal may report the first capability information corresponding to each frequency band pair for each of the multiple frequency band pairs in the first frequency band combination.

[0110] As an example, the terminal may report power levels respectively for multiple frequency band pairs corresponding to the first frequency band combination. Taking the first frequency band combination including frequency band A, frequency band B and frequency band C as an example, the frequency band pairs supported by the terminal may include the frequency band pair corresponding to frequency band A and frequency band B, the frequency band pair corresponding to frequency band A and frequency band C, and the frequency band pair corresponding to frequency band B and frequency band C. The terminal may report perBandPairperBandCombination capability information, including the first power levels corresponding to the above three frequency band pairs. For example, the first power levels corresponding to the above three frequency band pairs are power level 1.5, power level 2 and power level 3, respectively. It can be seen that the terminal can report the maximum power level corresponding to each frequency band pair for one or more frequency band pairs contained in the first frequency band combination.

[0111] As another example, if the power levels corresponding to multiple frequency band pairs are the same, the perBandPairperBandCombination capability information may also include only one power level to indicate that the multiple frequency band pairs all correspond to the power level.

[0112] (2) The second power level corresponds to the maximum power level supported by the first frequency band combination.

[0113] The second power level may be the maximum output power of the terminal when transmitting in the first frequency band combination. In other words, the second power level is the power level corresponding to the frequency band combination.

[0114] Optionally, the terminal may report second capability information to the network device before S101, indicating that the maximum power level corresponding to the first frequency band combination supported by the terminal is the second power level. For example, the terminal may report the second capability information to the network device during the capability reporting phase before S101. The reporting granularity of the second capability information is per frequency band combination, or in other words, the second capability information is reported for each frequency band combination, that is, each frequency band combination may correspond to different second capability information. The second capability information may be referred to as per-band combination capability information.

[0115] For example, the terminal supports multiple frequency band combinations, and the terminal may report the second capability information corresponding to each frequency band combination respectively for the multiple frequency band combinations.

[0116] (3) The third capability information is used to indicate that the power level of the first frequency band pair is allowed to exceed the second power level. In other words, the third capability information is used to indicate that the UE supports an increase in maximum output power. When the terminal device reports the third capability information to the network device, it indicates that the terminal allows uplink transmission on the frequency band pair at a power level exceeding the power level corresponding to the frequency band combination.

[0117] Optionally, the terminal may report the third capability information to the network device before S101. For example, the terminal may report the third capability information to the network device during the capability reporting phase before S101.

[0118] As an implementation manner, two or more of the above-mentioned first information, first capability information, second capability information and third capability information can be carried in the same capability reporting message.

[0119] In a possible embodiment, the terminal may report a band combination uplink switch (Band Combination-Uplink Tx Switch) to the network device. The band combination uplink switch may be used as the first information reported by the terminal, or as a terminal capability.

[0120] The band combination uplink switching may include the band combination information, which is represented as "BandCombination" in Figure 3. The band combination information may include the band list (band list) of the band combination, NR aggregation parameters (CA-ParametersNR), feature set combination identifier (FeatureSetCombinationId) (the value of 0 is taken as an example in the figure), the power level of the band combination (i.e., the second capability information, the power level 2 is taken as an example in the figure), and the supported bandwidth combination set (supportedBandwidthCombinationSet) (the value of 1 is taken as an example in the figure).

[0121] In addition, the frequency band combination uplink switching may include terminal supported frequency band pair information for uplink switching (ULTxSwitchingBandPair), which is used to indicate the frequency band pair supported by the terminal for uplink switching. The uplink switching frequency band pair information may be used as the first information supporting the first frequency band combination for uplink switching. As shown in Figure 3, the uplink switching frequency band pair information reported by the terminal includes at least the uplink switching frequency band pair information of the frequency band pair composed of the n1 frequency band and the n3 frequency band (ULTxSwitchingBandPair-r18(n1,n3)), the uplink switching frequency band pair information of the frequency band pair composed of the n1 frequency band and the n78 frequency band (ULTxSwitchingBandPair-r18(n1,n78)), and the uplink switching frequency band pair information of the frequency band pair composed of the n3 frequency band and the n78 frequency band (ULTxSwitchingBandPair-r18(n3,n78)). Therefore, the terminal at least supports uplink switching on the frequency band pair composed of the n1 frequency band and the n3 frequency band, the frequency band pair composed of the n1 frequency band and the n78 frequency band, and the frequency band pair composed of the n3 frequency band and the n78 band.

[0122] In addition, the frequency band combination uplink switching may include a higher power limit (higherPowerLimit) indication, which may be used as third capability information to indicate that the terminal supports increasing the maximum output power.

[0123] In a further example, the first capability information reported by the terminal may be included in the first information. For example, the first capability information may be included in the frequency band combination uplink switching shown in Figure 3. For example, the first capability information is included in the uplink switching frequency band pair information of the first frequency band pair. Taking the first frequency band pair consisting of n1 and n78 as an example, the first capability information may be included in ULTxSwitchingBandPair-r18(n1,n78) shown in Figure 3.

[0124] As shown in Figure 4, ULTxSwitchingBandPair-r18 (n1, n78), the first capability information may be the per-band-pair per-band combined power class (perBandPairperBC-power class) shown in Figure 4, the value of which is the value of the first power class. Furthermore, as shown in Figure 4, the uplink TxSwitchingOptionForBandPair may indicate a switching option for the first band pair, and its value may be "dualUL" or "switchUL."

[0125] In a possible embodiment, the network device may further configure a fallback combination of the first frequency band combination. For example, the network device sends configuration information of the fallback combination to the terminal device, and the configuration information includes, for example, the frequency band number in the fallback combination. The first frequency band pair is included in the first frequency band combination or the fallback combination of the first frequency band combination. The number of uplink frequency bands in the fallback combination of the first frequency band combination is not less than 2. The frequency bands included in the fallback combination of the first frequency band combination are a true subset of the frequency bands included in the first frequency band combination, and the configuration of the frequency bands included in the fallback combination of the first frequency band combination and the configuration are a true subset of the configuration of the frequency bands included in the first frequency band combination. For example, the first frequency band combination is 4 frequency bands, namely, A, B, C and D. The fallback combination of the first frequency band combination may be ABC, ABD, BCD, AB, AC, AD, BC, BD, and CD, or at least two of the above fallback combinations.

[0126] Below, a method for determining the transmission power of the first transmission and the transmission power of the second transmission based on the first power level is introduced through method 1, a method for determining the transmission power of the first transmission and the transmission power of the second transmission based on the first power level and the second power level is introduced through method 2, and a method for determining the transmission power of the first transmission and the transmission power of the second transmission based on the second power level and third capability information is introduced through method 3.

[0127] In mode 1, the terminal determines the transmit power of the first transmission and the transmit power of the second transmission according to the first power level.

[0128] In mode 1, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission according to the first power level.

[0129] As an example of determining the transmit power of the first transmission and the transmit power of the second transmission based on the first power level, the sum of the transmit power of the first transmission and the transmit power of the second transmission sent by the terminal does not exceed the power corresponding to the first power level. Taking the first power level as power level 3 as an example, the sum of the transmit power of the first transmission and the transmit power of the second transmission sent by the terminal does not exceed 23 dBm.

[0130] It can be understood that when the first capability information does not exist, or in other words, if the first capability information does not exist or the terminal does not report the first capability information, the terminal can determine the transmit power of the first transmission and the transmit power of the second transmission according to the second power level, the predefined power level, or the default power level. In other words, at this time, the sum of the transmit powers of the first transmission and the second transmission sent by the terminal does not exceed the second power level, the predefined power level, or the default power level. The predefined power level or the default power level can be level 3 or other power levels, without specific limitation.

[0131] The absence of the first capability information may mean that, as a default state, the capability information reported by the terminal to the network device does not contain a field or domain for indicating the power level of the first frequency band pair. The absence of the first capability information may also mean that the local capability information of the terminal does not contain a field or domain for indicating the power level of the first frequency band pair.

[0132] As another implementation, when the first capability information is not present, or in other words, if the first capability information is not present or the terminal has not reported the first capability information, the terminal may determine the transmit power for the first transmission and the transmit power for the second transmission based on the maximum power level supported by the second frequency band combination. The frequency bands in the second frequency band combination are the first frequency band and the second frequency band, or in other words, the second frequency band combination is a frequency band combination consisting of the first frequency band and the second frequency band. The maximum power level supported by the second frequency band combination may be the maximum output power of the terminal when transmitting in the second frequency band combination. In other words, the maximum power level supported by the second frequency band combination may be the CA power level of the terminal in the second frequency band combination. The second frequency band combination only includes the first frequency band and the second frequency band. In this application, the terminal may report a per-frequency band combination power level for the first frequency band and the second frequency band, and this power level may serve as the maximum power level supported by the second frequency band combination. Furthermore, since the at least three frequency bands included in the first frequency band combination include the first frequency band and the second frequency band, the terminal may also report a per-frequency band-to-per-frequency band combination power level for the first frequency band and the second frequency band, which is the first power level. The maximum power level supported by the second frequency band combination may be different from the first power level.

[0133] It is understandable that the terminal can also report the maximum power level supported by the second frequency band combination during the capability reporting phase, and its implementation method can refer to the implementation method when the terminal reports the second capability information. For example, the power level of the frequency band combination reported by the terminal for frequency band n3 and frequency band n78 is level 2, and the terminal does not report the first power level of the frequency band pair consisting of frequency band n3 and frequency band n78, then when frequency band n3 and frequency band n78 perform uplink concurrency, the terminal can use power level 2 to determine the maximum output power when frequency band n3 and frequency band n78 perform uplink concurrency.

[0134] In mode 2, the terminal determines the transmit power of the first transmission and the transmit power of the second transmission according to the first power level and the second power level.

[0135] In mode 2, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on the comparison result between the first power level and the second power level. When the first power level and the second power level are different, for example, when the first power level is greater than or less than the second power level, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on the first power level. Alternatively, if the first power level and the second power level are the same, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on the first power level or the second power level.

[0136] As an example of determining the transmit power of the first transmission and the transmit power of the second transmission based on the first power level, the sum of the transmit power of the first transmission and the transmit power of the second transmission sent by the terminal does not exceed the power corresponding to the first power level. Taking the first power level as power level 3 as an example, the sum of the transmit power of the first transmission and the transmit power of the second transmission sent by the terminal does not exceed 23 dBm.

[0137] As an example of mode 1, if the first power level is higher than the second power level, the terminal may execute mode 1 while sending (or reporting) the third capability information. That is, if the terminal reports that the power level of the first frequency band pair is allowed to exceed the second power level, or in other words, if the terminal reports that it allows support for increasing the maximum output power, then when the first power level is higher than the second power level, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on the first power level. Otherwise, if the terminal does not send (or report) the third capability information, that is, if the terminal does not report that the power level of the first frequency band pair is allowed to exceed the second power level, or in other words, if the terminal does not report that it allows support for increasing the maximum output power, then when the first power level is higher than the second power level, the terminal may determine the transmit power of the first transmission and the transmit power of the second transmission based on the second power level.

[0138] It can be understood that in this example, if the terminal supports multiple frequency band pairs corresponding to different power levels, the terminal can report a lower power level as the power level corresponding to the frequency band combination. For example, the terminal reports the lower power level among the multiple power levels corresponding to the multiple frequency band pairs as the maximum power level corresponding to the first frequency band combination through the second capability information. In addition, the terminal can also report third capability information, so that when performing uplink concurrency on a frequency band pair with a power level higher than the maximum power level corresponding to the first frequency band combination, the terminal can use the higher power level to avoid power waste.

[0139] In an exemplary implementation of method 1, the frequency band combination includes frequency band n1, frequency band n3 and frequency band n78. The maximum output power of the terminal when the frequency bands composed of n1 and n3 are concurrent can be the power corresponding to power level 3 (such as 23dBm), and the maximum output power of the terminal when the frequency band pair composed of n1 and n78 is concurrent and the maximum output power of the terminal when the frequency band pair composed of n3 and n78 is concurrent can be the power corresponding to power level 2 (such as 26dBm). As an example of the first capability information, the terminal can report service level 3, service level 2 and service level 2 for the above three frequency bands respectively to indicate the first power levels corresponding to the above three frequency band pairs. As an example of reporting the second capability information, the terminal can also report that the power level of CA corresponding to the frequency band combination is level 3, that is, the second power level is level 3, that is, the terminal can report a lower power level as the maximum power level corresponding to the first frequency band combination.

[0140] When the network device schedules a terminal to perform concurrent uplink transmission on frequency bands n1 and n3, the terminal determines the transmit power for the concurrent uplink transmission based on power level 3. If concurrent uplink transmission is performed on frequency bands n1 and n3, i.e., the first frequency band pair includes frequency bands n1 and n3, since the first power level and second power level corresponding to the frequency band pair are the same, the terminal may transmit according to either the first power level or the second power level. In other words, the sum of the transmit powers of the concurrent transmissions does not exceed level 3. If concurrent uplink transmission is performed on frequency bands n1 and n78, i.e., the first frequency band pair includes frequency bands n1 and n78, since the first power level corresponding to the frequency band pair is greater than the second power level, the terminal may transmit according to the first power level. In other words, the sum of the transmit powers of the concurrent transmissions does not exceed level 2. In other words, the maximum transmit power of the terminal is allowed to exceed level 3. Similarly, the sum of the transmit powers of the terminal for concurrent uplink transmission on frequency bands n3 and n78 does not exceed level 2.

[0141] Optionally, in the above exemplary implementation, the terminal may further report third capability information, that is, when the terminal reports the third capability information (or the third capability information exists), if the first power level is greater than the second power level, the terminal can perform uplink concurrency at the first power level in frequency band n1 and frequency band n78 (or frequency band n3 and frequency band n78). In addition, it may also be assumed that the terminal supports allowing the power level of the first frequency band pair to exceed the second power level, or in other words, it may be assumed that the terminal supports increasing the maximum output power. If the first power level is greater than the second power level, there is no need to send the third capability information, and the terminal can also perform uplink concurrency at the first power level in frequency band n1 and frequency band n78 (or frequency band n3 and frequency band n78).

[0142] It can be understood that in Mode 1 or Mode 2, the first frequency band pair can support the switching option of dual uplink or simultaneous support. That is, the two frequency bands of the first frequency band pair support uplink concurrency. For example, the first information reported by the terminal may include that the switching option supported by the first frequency band pair is dual uplink, indicating that the first frequency band pair supports uplink concurrency.

[0143] In addition, if the terminal supports uplink switching on the second frequency band pair, that is, the terminal does not support uplink concurrency on the second frequency band pair, the terminal cannot report the maximum power level corresponding to the second frequency band pair. For example, in this case, the terminal cannot report fourth capability information, which is used to indicate the maximum power level corresponding to the second frequency band pair of the terminal. The reporting granularity of the fourth capability information is per frequency band pair and per frequency band combination. In other words, the fourth capability information can indicate the first power level corresponding to the second frequency band pair.

[0144] Among them, the second frequency band pair may include a third frequency band and a fourth frequency band. Since concurrency in the second frequency band pair is not supported, the terminal can transmit (hereinafter referred to as the third transmission) at the maximum power level (such as referred to as the third power level) corresponding to the third frequency band pair through the third frequency band, that is, the transmit power of the transmission sent by the terminal in the third frequency band does not exceed the maximum transmit power corresponding to the terminal in the third frequency band. The maximum transmit power corresponding to the third frequency band may be the power level of each frequency band reported by the terminal for the third frequency band. Similarly, the terminal can transmit at the maximum power level corresponding to the fourth frequency band through the fourth frequency band pair in the fourth frequency band, which will not be repeated.

[0145] It is understood that whether a terminal reports the power level corresponding to a band pair is associated with the switching option of the band pair. If the switching option of the band pair is dual UL or both, the terminal can report the power level corresponding to the band pair. If the switching option of the band pair is switched UL, the terminal cannot report the power level corresponding to the band pair. Because switching UL determines that the terminal cannot perform concurrent uplink on both bands in the band pair, the power level corresponding to the band pair is not required.

[0146] "Uplink switching" means that the two frequency bands can only perform uplink switching, with each band representing a different frequency band before and after the switching. Concurrent uplink transmission between the two frequency bands is not possible. "Dual uplink" means that the two frequency bands can not only perform uplink switching but also support concurrent uplink transmission in a UL CA configuration. Each UL CA configuration corresponds to a frequency band pair. Each CA configuration (or each frequency band combination) can correspond to one or more UL CA configurations, and different UL CA configurations can correspond to different CA power levels. "Simultaneous support" means that the frequency band pair can support both uplink switching and dual uplink transmission.

[0147] It can also be understood that the third transmission performed by the terminal in the third frequency band can be an uplink transmission sent by the terminal in a single carrier corresponding to the third frequency band. The third transmission is not concurrent with transmissions of the terminal in other frequency bands or carriers.

[0148] For the uplink switching scenario, the terminal may also report capability information corresponding to the third power level (e.g., referred to as fifth capability information) to indicate the third power level. The fifth capability information may be reported at a per-frequency band granularity. The fifth capability information may be power level capability information for each frequency band corresponding to the third frequency band.

[0149] Mode 3: The terminal determines the transmit power of the first transmission and the transmit power of the second transmission according to the second power level and the third capability information.

[0150] In mode 3, the transmit power of the first transmission can also be determined according to the fourth power level or the fifth power level. The fourth power level and the fifth power level are the maximum power levels corresponding to the first frequency band, and the difference is that the reporting granularity of the fourth power level is per frequency band, and the reporting granularity of the fifth power level is per frequency band, per frequency band combination, or per feature set. For example, the fourth power level corresponds to the maximum output power of the terminal when transmitting in the first frequency band, and the granularity of reporting the fourth power level is per frequency band; in other words, the fourth power level is the power level of each frequency band corresponding to the first frequency band. The fifth power level corresponds to the maximum output power of the terminal when transmitting in the first frequency band, and the granularity of reporting the fifth power level is per frequency band, per frequency band combination, or per feature set. In other words, the fifth power level is the power level of the feature set corresponding to the first frequency band.

[0151] In addition, the transmit power of the second transmission can also be determined according to the sixth power level or the seventh power level. Among them, the sixth power level and the seventh power level are the maximum power levels corresponding to the second frequency band, and the difference is that the reporting granularity of the sixth power level is per frequency band, and the reporting granularity of the seventh power level is per frequency band per frequency band combination or per feature set. For example, the sixth power level corresponds to the maximum output power of the terminal when transmitting in the second frequency band, and the granularity of reporting the sixth power level is per frequency band; it can also be said that the sixth power level is the power level of each frequency band corresponding to the second frequency band. The seventh power level corresponds to the maximum output power of the terminal when transmitting in the second frequency band, and the granularity of reporting the seventh power level is per frequency band per frequency band combination or per feature set. It can also be said that the seventh power level is the power level of the feature set corresponding to the second frequency band.

[0152] Therefore, in mode 3, the terminal may determine the transmit power of the first transmission according to the fourth power level or the fifth power level, and determine the transmit power of the second transmission according to the fourth power level or the fifth power level.

[0153] In a possible embodiment, the sum of the transmit power of the first transmission determined by the terminal according to the fourth power level or the fifth power level and the transmit power of the second transmission determined according to the sixth power level or the seventh power level may be greater than the second power level. In other words, when the sum of the transmit power of the first transmission determined according to the fourth power level or the fifth power level and the transmit power of the second transmission determined according to the sixth power level or the seventh power level is greater than the second power level, the terminal may determine the transmit power of the first transmission according to the fourth power level or the fifth power level, and determine the transmit power of the second transmission according to the sixth power level or the seventh power level.

[0154] As an example of an implementation method of Method 3, the sum of the maximum transmit power of the first transmission and the maximum transmit power of the second transmission may be the sum of the fourth power level and the sixth power level (i.e., the sum of the per-band power level of the first frequency band and the per-band power level of the second frequency band). Alternatively, the sum of the maximum transmit power of the first transmission and the maximum transmit power of the second transmission may be the sum of the fifth power level and the seventh power level (i.e., the sum of the feature set power level of the first frequency band and the feature set power level of the second frequency band). Alternatively, the sum of the maximum transmit power of the first transmission and the maximum transmit power of the second transmission may be the sum of the smaller of the fourth power level and the fifth power level and the smaller of the sixth power level and the seventh power level (i.e., the sum of the smaller of the per-band power level and the feature set power level of the first frequency band and the smaller of the per-band power level and the feature set power level of the second frequency band). Alternatively, the sum of the maximum transmit power of the first transmission and the maximum transmit power of the second transmission can be the sum of the larger value of the fourth power level and the fifth power level and the larger value of the sixth power level and the seventh power level (i.e., the larger value of the per-band power level and the feature set power level of the first frequency band, and the larger value of the per-band power level and the feature set power level of the second frequency band).

[0155] It is understandable that in Mode 3, there is no restriction on the power level used to determine the transmit power of the first transmission (referred to as the power level of the first frequency band) and the power level used to determine the transmit power of the second transmission (referred to as the power level of the second frequency band). The power level of the first frequency band can be greater than, less than, or equal to the power level of the second frequency band. The power level of the first frequency band refers to the power level used to determine the transmit power of the first transmission, and in Mode 3, it can be the fourth power level or the fifth power level. The power level of the second frequency band refers to the power level used to determine the transmit power of the second transmission, and in Mode 3, it can be the sixth power level or the seventh power level.

[0156] It is also understood that the present application does not limit the duplex transmission type of the first transmission and the second transmission in mode 3. For example, the first transmission and the second transmission may both adopt a time division duplexing (TDD) mode for duplex transmission, or both adopt a frequency division duplexing (TDD) mode for multiplexing transmission, or may respectively adopt time division duplexing and frequency division duplexing modes for transmission, or respectively adopt frequency division duplexing and time division duplexing modes for transmission.

[0157] In a possible embodiment, in mode 3, the terminal may report the maximum power level corresponding to the first frequency band and / or the second frequency band.

[0158] For example, the terminal may send fifth capability information to the network device, and the fifth capability information may be used to indicate that the maximum power level corresponding to the first frequency band supported by the terminal is the fourth power level. The reporting granularity of the fifth capability information is per frequency band. In other words, the fifth capability information may be used to indicate that the power level per frequency band corresponding to the first frequency band supported by the terminal is the fourth power level. If the terminal does not report the fifth capability information, the maximum power level corresponding to the first frequency band is the maximum power level predefined by the protocol.

[0159] For another example, the terminal may send seventh capability information to the network device, and the seventh capability information may be used to indicate that the maximum power level corresponding to the second frequency band supported by the terminal is the sixth power level. The reporting granularity of the seventh capability information is per frequency band. In other words, the seventh capability information may be used to indicate that the per-frequency band power level corresponding to the second frequency band supported by the terminal is the sixth power level. If the terminal does not report the sixth capability information, the maximum power level corresponding to the second frequency band is the maximum power level predefined by the protocol.

[0160] In a possible embodiment, in mode 3, the terminal may further report the feature set power level corresponding to the first frequency band and / or the second frequency band.

[0161] For example, the terminal may send sixth capability information to the network device, where the sixth capability information may be used to indicate that the maximum power level corresponding to the first frequency band supported by the terminal is the fifth power level. The reporting granularity of the sixth capability information is per frequency band. In other words, the sixth capability information may be used to indicate that the feature set power level corresponding to the first frequency band supported by the terminal is the fifth power level.

[0162] For another example, the terminal may send eighth capability information to the network device, where the eighth capability information may be used to indicate that the maximum power level corresponding to the second frequency band supported by the terminal is the seventh power level. The reporting granularity of the eighth capability information is per frequency band. In other words, the eighth capability information may be used to indicate that the feature set power level corresponding to the second frequency band supported by the terminal is the seventh power level.

[0163] As can be seen, in Mode 3, the terminal can use a transmit power exceeding the second power level for uplink parallel transmission. That is, in Mode 3, if the terminal supports multiple frequency band pairs corresponding to different power levels, the terminal can report the lower power level as the power level corresponding to the frequency band combination, so that all frequency band pairs support transmission at that power level. If a frequency band pair supports a higher power level, Mode 3 can be used to achieve transmission at the higher power level, avoiding power waste.

[0164] Based on the same technical concept, an embodiment of the present application provides a communication device, which includes modules, units or means corresponding to the method steps in the above method embodiments. The functions, units or means can be implemented by software, or by hardware, or the corresponding software can be implemented by hardware.

[0165] Exemplarily, referring to FIG. 5 , the apparatus 500 may include a processing module 501 and a transceiver module 502 .

[0166] Optionally, the transceiver module 502 may include a sending module and / or a receiving module. The sending module is used to perform the sending operation in the above method embodiment. The receiving module is used to perform the receiving operation in the above method embodiment.

[0167] It should be noted that the communication device 500 may include a sending module but not a receiving module. Alternatively, the communication device 500 may include a receiving module but not a sending module. The specific implementation depends on whether the above solution executed by the communication device 500 includes a sending action and a receiving action.

[0168] The processing module 501 is used for data processing, and the transceiver module 502 can realize corresponding communication functions.

[0169] Optionally, the communication device 500 may further include a storage module, which may be used to store instructions and / or data. The processing module 501 may read the instructions and / or data in the storage module so that the communication device 500 implements the aforementioned method embodiment.

[0170] Exemplarily, the communication device 500 may be a first communication device or a component configurable in the first communication device. The first communication device is, for example, a terminal (such as the terminal in FIG2 ). The processing module 501 is configured to perform operations related to processing of the terminal in the above method embodiments. The transceiver module 502 is configured to perform operations related to sending and / or receiving of the terminal in the above method embodiments.

[0171] For example, when implementing the terminal operations shown in Figure 2, transceiver module 502 may be configured to receive first configuration information, first scheduling information, and second scheduling information. Furthermore, transceiver module 502 may transmit a first transmission and a second transmission. The transmit power of the first transmission and the transmit power of the second transmission may be described in S103 and will not be repeated here. Processing module 501 may be configured to determine the transmit power of the first transmission and the transmit power of the second transmission.

[0172] In a possible implementation, the transceiver module 502 may be further configured to send at least one of the first information, the first capability information, and the second capability information.

[0173] In a possible implementation, the processing module 501 may be specifically configured to: when the first power level is different from the second power level, determine the transmit power of the first transmission and the transmit power of the second transmission according to the first power level.

[0174] In one possible implementation, the processing module 501 can be specifically used to: when the first capability information does not exist, determine the transmit power of the first transmission and the transmit power of the second transmission according to the second power level; or, when the first capability information does not exist, determine the transmit power of the first transmission and the transmit power of the second transmission according to a predefined or default power level, the predefined or default power level is, for example, level 3 (such as 23dBm); or, when the first capability information does not exist, determine the transmit power of the first transmission and the transmit power of the second transmission according to the maximum power level supported by the second frequency band combination, the frequency bands in the second frequency band combination are the first frequency band and the second frequency band.

[0175] In one possible implementation, the uplink switching frequency band pair list also includes a second frequency band pair, and the second frequency band pair includes a third frequency band and a fourth frequency band; the first information also includes reporting that the switching option supported by the second frequency band pair is switching uplink, then the transceiver module 502 does not report the fourth capability information, and the fourth capability information is used to indicate the maximum power level corresponding to the supported second frequency band pair, and the reporting granularity of the fourth capability information is per frequency band pair per frequency band combination.

[0176] In one possible implementation, the processing module 501 can also be used to determine the transmit power of the uplink transmission sent by the terminal on the third frequency band based on the third power level, where the third power level is the maximum power level corresponding to the third frequency band, and the granularity of reporting the third power level is per frequency band.

[0177] In a possible implementation, the transceiver module 502 may further send fifth capability information, where the fifth capability information is used to indicate that the maximum power level corresponding to the supported third frequency band is the third power level, and the reporting granularity of the fifth capability information is per frequency band.

[0178] In one possible implementation, the processing module 501 can also be used to: determine the transmit power of the first transmission based on a fourth power level or a fifth power level, the fourth power level being the maximum power level corresponding to the first frequency band, and the granularity of reporting the fourth power level is per frequency band, the fifth power level being the maximum power level corresponding to the first frequency band, and the granularity of reporting the fifth power level is per frequency band, per frequency band combination, or per feature set; and / or, determine the transmit power of the second transmission based on a sixth power level or a seventh power level, the sixth power level being the maximum power level corresponding to the second frequency band, and the granularity of reporting the sixth power level is per frequency band, the seventh power level being the maximum power level corresponding to the second frequency band, and the granularity of reporting the seventh power level is per frequency band, per frequency band combination, or per feature set.

[0179] In one possible implementation, the transceiver module 502 may also send at least one of the fifth capability information, the sixth capability information, the seventh capability information or the eighth capability information; wherein the fifth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fourth power level, and the reporting granularity of the fifth capability information is per frequency band; the sixth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fifth power level, and the reporting granularity of the sixth capability information is per frequency band, per frequency band combination or per feature set; the seventh capability information is used to indicate that the maximum power level corresponding to the supported second frequency band is the sixth power level, and the reporting granularity of the seventh capability information is per frequency band; the eighth capability information is used to indicate that the maximum power level corresponding to the supported second frequency band is the seventh power level, and the reporting granularity of the eighth capability information is per frequency band, per frequency band combination or per feature set.

[0180] Furthermore, the communication device 500 may be a second communication device or a component that can be configured in a second communication device. The second communication device is, for example, a network device (such as the network device in FIG. 2 ). The processing module 501 is configured to perform operations related to processing of the network device in the above method embodiment. The transceiver module 502 is configured to perform operations related to sending and / or receiving of the network device in the above method embodiment.

[0181] For example, when used to implement the actions of the network device shown in Figure 2: the transceiver module 502 can be used to send the first configuration information, the first scheduling information, and the second scheduling information. The transceiver module 502 can also receive the first transmission and the second transmission sent by the terminal.

[0182] In a possible implementation, the transceiver module 502 may be further configured to receive at least one of the first information, the first capability information, and the second capability information.

[0183] In a possible implementation, the transceiver module 502 may also be used to receive fifth capability information, where the fifth capability information is used to indicate that the maximum power level corresponding to the supported third frequency band is the third power level, and the reporting granularity of the fifth capability information is per frequency band.

[0184] In a possible implementation, the transceiver module 502 may be further configured to receive at least one of the fifth capability information, the sixth capability information, the seventh capability information, or the eighth capability information.

[0185] It should be understood that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0186] The processing module 501 in the above embodiment can be implemented by at least one processor or processor-related circuits. The transceiver module 502 can be implemented by a transceiver or transceiver-related circuits. The transceiver module 502 can also be called a communication module or a communication interface.

[0187] Another structural diagram of a communication device according to an embodiment of the present application is shown below. As shown in FIG6 , an embodiment of the present application further provides a communication device 600, comprising:

[0188] At least one processor 601; and a communication interface 603 communicatively connected to the at least one processor 601; the at least one processor 601 executes instructions stored in at least one memory 602, so that the device performs the method steps in the above method embodiment through the communication interface 603.

[0189] Optionally, the at least one memory 602 is located outside the device 600 .

[0190] Optionally, the apparatus 600 includes at least one memory 602, the memory 602 being connected to the at least one processor 601, and the memory 602 storing instructions executable by the at least one processor 601. FIG6 uses dashed lines to indicate that the memory 602 is optional for the apparatus 600.

[0191] The processor 601 and the memory 602 may be coupled via an interface circuit or may be integrated together, which is not limited here.

[0192] The specific connection medium between the processor 601, memory 602, and communication interface 603 is not limited in the embodiments of the present application. In Figure 6, the processor 601, memory 602, and communication interface 603 are connected via bus 604. The bus is represented by a bold line in Figure 6. The connection between other components is only for schematic illustration and is not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 6 shows a single bold line, but this does not mean that there is only one bus or one type of bus.

[0193] When the communication device 600 is a first communication device, the first communication device may include a processor, a memory, and a transceiver, wherein the memory may store computer program codes, and the transceiver includes a transmitter and a receiver.

[0194] The processor is primarily used to process communication protocols and communication data; for example, it controls the first communication device, executes software programs, and processes data from software programs. The memory is primarily used to store software programs and data. The transmitter is used to send signals to other communication devices or equipment, and the receiver is used to receive signals from other communication devices or equipment.

[0195] When communication device 600 is a chip in a first communication device, the chip may include a processor, a memory, and a transceiver. The transceiver may be an input / output circuit or a communication interface. The processor may be a processing module, a microprocessor, or an integrated circuit integrated on the chip. In the above method embodiment, the transmission operation of the first communication device may be understood as an output of the chip, and the reception operation of the first communication device in the above method embodiment may be understood as an input of the chip.

[0196] Similarly, when the communication device 600 is a second communication device, the second communication device may include a processor, a memory, and a transceiver, wherein the memory may store computer program codes, and the transceiver includes a transmitter and a receiver.

[0197] The processor is primarily used to process communication protocols and communication data; control the second communication device, execute software programs, and process software program data. The memory is primarily used to store software programs and data. The transmitter is used to send signals to other communication devices or equipment, and the receiver is used to receive signals from other communication devices or equipment.

[0198] When communication device 600 is a chip in a second communication device, the chip may include a processor, a memory, and a transceiver. The transceiver may be an input / output circuit or a communication interface. The processor may be a processing module, a microprocessor, or an integrated circuit integrated on the chip. In the above method embodiment, the sending operation of the second communication device may be understood as an output of the chip, and the receiving operation of the second communication device in the above method embodiment may be understood as an input of the chip.

[0199] It should be understood that the processors mentioned in the embodiments of the present application can be implemented by hardware or software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented by software, the processor can be a general-purpose processor that is implemented by reading software code stored in a memory.

[0200] Exemplarily, the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0201] It should be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0202] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0203] It should be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0204] Based on the same technical concept, an embodiment of the present application further provides a computer-readable storage medium, including a program or instructions. When the program or instructions are run on a computer, the method in the above method embodiment is executed.

[0205] An embodiment of the present application also provides a chip or chip system, including a circuit (such as an analog circuit and / or a logic circuit; or it is understood that the chip system includes one or more processors, and one or more processors may include a circuit, etc.), or it is understood that the chip includes a processor. The circuit or processor is coupled to the memory for executing the computer program or instructions stored in the memory, so that the method shown in Figure 2 or the various embodiments in this application is implemented. The chip or chip system may also include an input and output interface. For example, taking the chip implementing the function of the terminal as an example, the chip can receive information from other modules of the terminal (such as radio frequency or antenna, etc.) through the input and output interface, and the information may be sent to the terminal by other communication devices such as network equipment. Alternatively, the chip can send information to other modules in the terminal (such as radio frequency or antenna, etc.) through the input and output interface, and the information may be sent by the terminal to other communication devices such as network equipment.

[0206] Based on the same technical concept, an embodiment of the present application further provides a computer program product, including instructions, which, when executed on a computer, enables the method in the above method embodiment to be executed.

[0207] Based on the same technical concept, an embodiment of the present application further provides a communication system, which may include a first communication device and a second communication device. The first communication device may be used to implement the method implemented by the first communication device in the above method embodiment, and the second communication device may be used to implement the method implemented by the second communication device in the above method embodiment. For example, the first communication device is used to execute the actions implemented by the terminal in the process shown in FIG2 , and the second communication device is used to execute the actions implemented by the network device in the process shown in FIG2 .

[0208] Based on the same technical concept, an embodiment of the present application further provides a communication system, which may include a first communication device and a second communication device. For example, the first communication device is a terminal, and the second communication device is a network device.

[0209] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0210] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each flow and / or box in the flow chart and / or block diagram, as well as the combination of the flow chart and / or box in the flow chart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more flow charts and / or one or more boxes in the block diagram.

[0211] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0212] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0213] In the description of this application, words such as "first" and "second" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or order. It should be noted that this application does not limit the order of appearance of "first," "second," etc. For example, "second" may appear before "first," and this is not a limitation in this application.

[0214] In the description of this application, "at least one (kind)" refers to one (kind) or more (kinds), and more (kinds) refers to two (kinds) or more than two (kinds). "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple. In the description of this application, " / " means "or", for example, a / b means a or b.

Claims

1. A communication method, characterized in that: include: Acquire first configuration information, where the first configuration information is used to indicate an uplink switching frequency band pair list, where the uplink switching frequency band pair list includes a first frequency band pair, where the first frequency band pair includes a first frequency band and a second frequency band; receiving first scheduling information and second scheduling information, where the first scheduling information is used to schedule sending a first transmission in the first frequency band, and the second scheduling information is used to schedule sending a second transmission in the second frequency band, where a time domain position of the first transmission overlaps with a time domain position of the second transmission; determining a transmit power for the first transmission and a transmit power for the second transmission according to a first power level, wherein the first power level corresponds to a maximum power level supported by the first frequency band; or determining a transmit power for the first transmission and a transmit power for the second transmission according to a first power level and a second power level, wherein the first power level corresponds to a maximum power level supported by the first frequency band pair, and the second power level corresponds to a maximum power level supported by a first frequency band combination, wherein the first frequency band combination includes the first frequency band, the second frequency band, and at least one frequency band other than the first frequency band and the second frequency band; or The transmit power of the first transmission and the transmit power of the second transmission are determined according to the second power level and the third capability information, the second power level corresponds to the maximum power level supported by the first frequency band combination, the first frequency band combination includes the first frequency band, the second frequency band and at least one frequency band other than the first frequency band and the second frequency band, the third capability information, the third capability information is used to indicate: the power level of the first frequency band pair is allowed to exceed the second power level.

2. The method according to claim 1, wherein The method further comprises: sending at least one of the first information, the first capability information, and the second capability information; The first information includes supporting the first frequency band combination for uplink switching, and the first information also includes a terminal supported frequency band pair list, and the terminal supported frequency band pair list includes the first frequency band pair; or The first capability information is used to indicate that the maximum power level corresponding to the first frequency band pair supported is the first power level, and the reporting granularity of the first capability information is per frequency band pair per frequency band combination; or The second capability information is used to indicate that the maximum power level corresponding to the supported first frequency band combination is the second power level, and the reporting granularity of the second capability information is per frequency band combination.

3. The method according to claim 1 or 2, wherein: The determining, according to the first power level and the second power level, the transmit power of the first transmission and the transmit power of the second transmission includes: The first power level is different from the second power level, and the transmit power of the first transmission and the transmit power of the second transmission are determined according to the first power level.

4. The method according to claim 2 or 3, wherein: The first information also includes that the switching option supported by the first frequency band pair is dual uplink.

5. The method according to claim 2, wherein When the first capability information does not exist, the method further includes: determining the transmit power of the first transmission and the transmit power of the second transmission according to the second power level; or, determining the transmit power of the first transmission and the transmit power of the second transmission according to a predefined power level; or, The transmit power of the first transmission and the transmit power of the second transmission are determined according to a maximum power level supported by a second frequency band combination, where the frequency bands in the second frequency band combination are the first frequency band and the second frequency band.

6. The method according to claim 2, wherein The uplink switching frequency band pair list further includes a second frequency band pair, and the second frequency band pair includes a third frequency band and a fourth frequency band; The first information further includes reporting that the supported handover option for the second frequency band is handover uplink; The method further comprises: The fourth capability information is not reported, where the fourth capability information is used to indicate the maximum power level corresponding to the second frequency band pair supported, and the reporting granularity of the fourth capability information is per frequency band pair and per frequency band combination.

7. The method according to claim 6, wherein The method further comprises: The transmit power of the uplink transmission sent on the third frequency band is determined according to a third power level, where the third power level is a maximum power level corresponding to the third frequency band, and the granularity of reporting the third power level is per frequency band.

8. The method according to claim 7, wherein The method further comprises: Send fifth capability information, where the fifth capability information is used to indicate that the maximum power level corresponding to the supported third frequency band is the third power level, and the reporting granularity of the fifth capability information is per frequency band.

9. The method according to claim 1, wherein The determining, according to the second power level and the third capability information, the transmit power of the first transmission and the transmit power of the second transmission further includes: determining a transmit power for the first transmission according to a fourth power level or a fifth power level, where the fourth power level is a maximum power level corresponding to the first frequency band, and the granularity of reporting the fourth power level is per frequency band, and the fifth power level is the maximum power level corresponding to the first frequency band, and the granularity of reporting the fifth power level is per frequency band, per frequency band combination, or per feature set; The transmit power of the second transmission is determined according to the sixth power level or the seventh power level, the sixth power level is the maximum power level corresponding to the second frequency band, and the granularity of reporting the sixth power level is per frequency band, the seventh power level is the maximum power level corresponding to the second frequency band, and the granularity of reporting the seventh power level is per frequency band, per frequency band combination, or per feature set.

10. The method according to claim 9, wherein The method further comprises: sending at least one of the fifth capability information, the sixth capability information, the seventh capability information, or the eighth capability information; The fifth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fourth power level, and the reporting granularity of the fifth capability information is per frequency band; or The sixth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fifth power level, and the reporting granularity of the sixth capability information is per frequency band, per frequency band combination, or per feature set; or The seventh capability information is used to indicate that the maximum power level corresponding to the second frequency band supported is the sixth power level, and the reporting granularity of the seventh capability information is per frequency band; or The eighth capability information is used to indicate that the maximum power level corresponding to the second frequency band supported is the seventh power level, and the reporting granularity of the eighth capability information is per frequency band, per frequency band combination, or per feature set.

11. A communication method, characterized in that: include: Sending first configuration information, where the first configuration information is used to indicate an uplink switching frequency band pair list, where the uplink switching frequency band pair list includes a first frequency band pair, where the first frequency band pair includes a first frequency band and a second frequency band; Sending first scheduling information and second scheduling information, where the first scheduling information is used to schedule sending a first transmission in the first frequency band, and the second scheduling information is used to schedule sending a second transmission in the second frequency band, where a time domain position of the first transmission overlaps with a time domain position of the second transmission; The transmit power of the first transmission and the transmit power of the second transmission are determined according to a first power level, and the first power level corresponds to a maximum power level supported by the first frequency band; or The transmit power of the first transmission and the transmit power of the second transmission are determined according to a first power level and a second power level, the first power level corresponds to a maximum power level supported by the first frequency band pair, and the second power level corresponds to a maximum power level supported by a first frequency band combination, where the first frequency band combination includes the first frequency band, the second frequency band, and at least one frequency band other than the first frequency band and the second frequency band; or The transmission power of the first transmission and the transmission power of the second transmission are determined based on the second power level and third capability information, the second power level corresponds to the maximum power level supported by the first frequency band combination, the first frequency band combination includes the first frequency band, the second frequency band and at least one frequency band other than the first frequency band and the second frequency band, the third capability information, the third capability information is used to indicate: the power level of the first frequency band pair is allowed to exceed the second power level.

12. The method according to claim 11, wherein The method further includes: receiving at least one of the first information, the first capability information, and the second capability information; The first information includes supporting the first frequency band combination for uplink switching, and the first information also includes a terminal supported frequency band pair list, and the terminal supported frequency band pair list includes the first frequency band pair; or The first capability information is used to indicate that the maximum power level corresponding to the first frequency band pair supported is the first power level, and the reporting granularity of the first capability information is per frequency band pair per frequency band combination; or The second capability information is used to indicate that the maximum power level corresponding to the supported first frequency band combination is the second power level, and the reporting granularity of the second capability information is per frequency band combination.

13. The method according to claim 11 or 12, wherein: The transmit power of the first transmission and the transmit power of the second transmission are determined according to a first power level, including: The first power level is different from the second power level, and the transmit power of the first transmission and the transmit power of the second transmission are determined according to the first power level.

14. The method according to claim 12 or 13, wherein: The first information also includes that the switching option supported by the first frequency band pair is dual uplink.

15. The method according to claim 12, wherein When the first capability information does not exist, The transmit power of the first transmission and the transmit power of the second transmission are determined according to the second power level; or, The transmit power of the first transmission and the transmit power of the second transmission are determined according to a predefined power level; or, The transmit power of the first transmission and the transmit power of the second transmission are determined according to a maximum power level supported by a second frequency band combination, where the frequency bands in the second frequency band combination are the first frequency band and the second frequency band.

16. The method according to claim 12, wherein The uplink switching frequency band pair list further includes a second frequency band pair, and the second frequency band pair includes a third frequency band and a fourth frequency band; The first information also includes reporting that the supported switching option for the second frequency band is switching uplink, and the transmission power of the uplink transmission sent by the terminal in the third frequency band is determined according to the third power level, the third power level is the maximum power level corresponding to the third frequency band, and the granularity of reporting the third power level is per frequency band.

17. The method according to claim 16, wherein The method further comprises: Fifth capability information is received, where the fifth capability information is used to indicate that a maximum power level corresponding to the supported third frequency band is the third power level, and a reporting granularity of the fifth capability information is per frequency band.

18. The method according to claim 11, wherein The transmit power of the first transmission and the transmit power of the second transmission are determined according to the second power level and the third capability information, and further comprising: The transmit power of the first transmission is determined according to a fourth power level or a fifth power level, the fourth power level is the maximum power level corresponding to the first frequency band, and the granularity of reporting the fourth power level is per frequency band, the fifth power level is the maximum power level corresponding to the first frequency band, and the granularity of reporting the fifth power level is per frequency band, per frequency band combination, or per feature set; The transmission power of the second transmission is determined according to the sixth power level or the seventh power level, the sixth power level is the maximum power level corresponding to the second frequency band, and the granularity of reporting the sixth power level is per frequency band, the seventh power level is the maximum power level corresponding to the second frequency band, and the granularity of reporting the seventh power level is per frequency band, per frequency band combination or per feature set.

19. The method according to claim 18, wherein The method further comprises: receiving at least one of fifth capability information, sixth capability information, seventh capability information, or eighth capability information; The fifth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fourth power level, and the reporting granularity of the fifth capability information is per frequency band; or The sixth capability information is used to indicate that the maximum power level corresponding to the supported first frequency band is the fifth power level, and the reporting granularity of the sixth capability information is per frequency band, per frequency band combination, or per feature set; or The seventh capability information is used to indicate that the maximum power level corresponding to the second frequency band supported is the sixth power level, and the reporting granularity of the seventh capability information is per frequency band; or The eighth capability information is used to indicate that the maximum power level corresponding to the second frequency band supported is the seventh power level, and the reporting granularity of the eighth capability information is per frequency band, per frequency band combination, or per feature set.

20. A communication device, characterized in that: The method comprises a unit or module for executing the method according to any one of claims 1 to 10, or comprises a unit or module for executing the method according to any one of claims 11 to 19.

21. A communication device, characterized in that: The system comprises at least one processor, wherein the at least one processor is configured to execute computer programs or instructions to implement the method according to any one of claims 1 to 10, or to implement the method according to any one of claims 11 to 19.

22. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 10 is implemented, or the method according to any one of claims 11 to 19 is implemented.

23. A computer program product, characterized in that When the computer program product is executed by a computer, the computer executes the method according to any one of claims 1 to 10, or executes the method according to any one of claims 11 to 19.

24. A chip or a chip system, characterized in that: The method comprises a circuit configured to execute a computer program or instruction to implement the method according to any one of claims 1 to 10, or to implement the method according to any one of claims 11 to 19.

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