Communication method and apparatus

Abstract

Provided in the present application are a communication method and apparatus. The method comprises: when uplink transmission is switched from frequency-domain resources prior to switching to frequency-domain resources after switching, determining a frequency-domain resource located during a switching time, wherein the frequency-domain resources prior to switching are M frequency-domain resources, the frequency-domain resources after switching are N frequency-domain resources, M and N are positive integers, the sum of M and N is greater than or equal to 2, and the frequency-domain resources are bands or carriers; and the switching time is a time for switching from the frequency-domain resources prior to switching to the frequency-domain resources after switching, the frequency-domain resource located during the switching time is a frequency-domain resource prior to switching, the frequency-domain resources after switching include a second frequency-domain resource, and the second frequency-domain resource carries second control information. By using the method, the influence of a switching time on uplink transmission can be reduced, thereby effectively improving the probability of uplink control information being correctly transmitted.

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 February 8, 2024, with application number 202410178327.1 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 communication technology, and in particular to a communication method and device. Background Art

[0004] In fifth-generation (5G) new radio (NR) systems, terminal uplink transmissions are often power-limited. Consequently, the received signal strength of the uplink signal upon reaching the base station may not be sufficient to guarantee coverage. Furthermore, insufficient uplink spectrum (UL spectrum) exists, making it impossible to rely on retransmission of uplink data to guarantee uplink coverage.

[0005] Currently, NR introduces supplementary uplink (SUL) as an alternative when uplink coverage is insufficient in the NR system. Furthermore, terminals can switch between the NR frequency band (also known as the normal uplink (NUL) band) and the SUL band. For example, in time slot 1, the terminal transmits information 1 on one frequency band. In the time slot after time slot 1, the terminal switches to another frequency band to transmit information 2.

[0006] However, due to terminal capabilities, switching frequency bands requires time, which can cause uplink transmission interruptions. This time period may include some symbols corresponding to the frequency band before the switch, or some symbols corresponding to the frequency band after the switch. Determining the timing of this switching time to minimize the impact on uplink transmission has become a major concern for researchers. Summary of the Invention

[0007] The embodiments of the present application provide a communication method and apparatus for reducing the impact of switching time on uplink transmission during frequency band switching.

[0008] In the first aspect, the present application provides a communication method, which can be executed by a terminal or a module (such as a chip) in the terminal. The method includes: when the uplink transmission switches from the frequency domain resources before switching to the frequency domain resources after switching, determining the frequency domain resources where the switching time is located; wherein, the frequency domain resources before switching are M frequency domain resources, and the frequency domain resources after switching are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; wherein, the switching time is the time to switch from the frequency domain resources before switching to the frequency domain resources after switching; when the first condition is met, the frequency domain resource where the switching time is located is the frequency domain resource that does not have the highest priority in the frequency domain resource set, and the frequency domain resource where the switching time is located is the frequency domain resource before switching or the frequency domain resource after switching; the first condition includes at least one of the following: the frequency domain resource before switching includes the first frequency domain resource, and the first frequency domain resource carries the first control information; or, the frequency domain resource after switching does not include the first frequency domain resource. The present invention relates to a method for controlling the switching of a plurality of frequency domain resources and a plurality of frequency domain resources, wherein the switching frequency domain resources include a second frequency domain resource and the second frequency domain resource carries the second control information; or the frequency domain resource after the switching includes a second frequency domain resource and the second frequency domain resource carries the second control information, and the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource; or the frequency domain resource after the switching includes a second frequency domain resource and the second frequency domain resource carries the second control information, and the frequency domain resource after the switching includes the frequency domain resource with the highest priority in the frequency domain resource set; wherein the frequency domain resource set includes the frequency domain resources before the switching and the frequency domain resources after the switching, or the frequency domain resource set includes the frequency domain resources before the switching and the frequency domain resources after the switching except the third frequency domain resource, the third frequency domain resource is the frequency domain resource included in the frequency domain resource before the switching, and the third frequency domain resource is the frequency domain resource included in the frequency domain resource after the switching.

[0009] Using the above method, when the uplink transmission switches from the frequency domain resources before the switch to the frequency domain resources after the switch, the terminal can determine the frequency domain resources where the switching time is located in combination with the first condition. The position of the switching time determined by the above method can reduce the impact of the switching time on the uplink transmission, and can effectively improve the probability of the uplink control information (for example, the second control information) being correctly transmitted.

[0010] In one possible design, the frequency domain resources contained in the frequency domain resources before the switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after the switching carry the multiplexed second control information.

[0011] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0012] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0013] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest service cell index among the switched frequency domain resources.

[0014] In one possible design, the second frequency domain resource is determined from K frequency domain resources, and the second frequency domain resource is the frequency domain resource with the smallest service cell index among the K frequency domain resources, where K is an integer greater than or equal to 2, and K is less than N, and the K frequency domain resources belong to the N frequency domain resources.

[0015] In one possible design, the K frequency domain resources are determined from the switched frequency domain resources.

[0016] In one possible design, when the maximum number K of carriers supported by the terminal for CA or the number K of transmission chains supported by the terminal is less than N, the K frequency domain resources are determined from the switched frequency domain resources.

[0017] In one possible design, the K frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0018] Using the above method, the terminal first determines to transmit the physical uplink data channel on K frequency domain resources among N frequency domain resources, and then determines on which frequency domain resource among the K frequency domain resources the physical uplink control channel is multiplexed.

[0019] In one possible design, the second frequency domain resource is determined from the switched frequency domain resources, where the second frequency domain resource is the frequency domain resource with the smallest service cell index in the switched frequency domain resources.

[0020] In one possible design, K-1 frequency domain resources are determined from the frequency domain resources after the switch except the second frequency domain resources, where K is an integer greater than or equal to 2 and K is less than N.

[0021] In one possible design, when the maximum number of carriers K supported by the terminal for CA or the number of transmission chains supported by the terminal is less than N, the K-1 frequency domain resources are determined from the frequency domain resources after the switch except the second frequency domain resources.

[0022] In one possible design, the K-1 frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0023] With the above design, the terminal first determines which frequency domain resource for transmitting the physical uplink data channel is multiplexed onto which the physical uplink control channel is to be multiplexed, and then determines the other K-1 frequency domain resources.

[0024] In one possible design, the second control information includes HARQ, or at least one of non-periodic CSI or SR.

[0025] In one possible design, the second frequency domain resources also carry the second data information.

[0026] In one possible design, the first frequency domain resource also carries the first data information.

[0027] In a second aspect, the present application provides a communication method, which can be executed by a terminal or a module (such as a chip) in the terminal. The method includes: when the uplink transmission is switched from the frequency domain resources before the switch to the frequency domain resources after the switch, determining the frequency domain resources where the switching time is located; wherein the frequency domain resources before the switch are M frequency domain resources, and the frequency domain resources after the switch are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; wherein the switching time is the time from the frequency domain resources before the switch to the frequency domain resources after the switch; the frequency domain resources where the switching time is located are the frequency domain resources before the switch, wherein the frequency domain resources after the switch include second frequency domain resources, and the second frequency domain resources carry second control information.

[0028] Using the above method, when the frequency domain resources after switching include the second frequency domain resources and the second frequency domain resources carry the second control information, the terminal determines that the frequency domain resources where the switching time is located are the frequency domain resources before switching, rather than the frequency domain resources after switching, thereby reducing the impact of the switching time on the uplink transmission and effectively improving the probability of the uplink control information (for example, the second control information) being correctly transmitted.

[0029] In one possible design, the frequency domain resources contained in the frequency domain resources before switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after switching carry the multiplexed second control information.

[0030] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0031] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0032] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest service cell index among the switched frequency domain resources.

[0033] In one possible design, the second frequency domain resource is determined from K frequency domain resources, and the second frequency domain resource is the frequency domain resource with the smallest service cell index among the K frequency domain resources, where K is an integer greater than or equal to 2, and K is less than N, and the K frequency domain resources belong to the N frequency domain resources.

[0034] In one possible design, the K frequency domain resources are determined from the switched frequency domain resources.

[0035] In one possible design, when the maximum number K of carriers supported by the terminal for CA or the number K of transmission chains supported by the terminal is less than N, the K frequency domain resources are determined from the switched frequency domain resources.

[0036] In one possible design, the K frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0037] Using the above method, the terminal first determines to transmit the physical uplink data channel on K frequency domain resources among N frequency domain resources, and then determines on which frequency domain resource among the K frequency domain resources the physical uplink control channel is multiplexed.

[0038] In one possible design, the second frequency domain resource is determined from the switched frequency domain resources, where the second frequency domain resource is the frequency domain resource with the smallest service cell index in the switched frequency domain resources.

[0039] In one possible design, K-1 frequency domain resources are determined from the frequency domain resources after the switch except the second frequency domain resources, where K is an integer greater than or equal to 2 and K is less than N.

[0040] In one possible design, when the maximum number of carriers K supported by the terminal for CA or the number of transmission chains supported by the terminal is less than N, the K-1 frequency domain resources are determined from the frequency domain resources after the switch except the second frequency domain resources.

[0041] In one possible design, the K-1 frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0042] With the above design, the terminal first determines which frequency domain resource for transmitting the physical uplink data channel is multiplexed onto which the physical uplink control channel is to be multiplexed, and then determines the other K-1 frequency domain resources.

[0043] In one possible design, the second control information includes at least one of HARQ, or non-periodic CSI, or SR.

[0044] In one possible design, the second frequency domain resources also carry the second data information.

[0045] In one possible design, the frequency domain resources before switching include first frequency domain resources, and the first frequency domain resources carry the first data information and / or the first control information.

[0046] In a third aspect, the present application provides a communication method, which can be executed by a base station or a module (such as a chip) in the base station. The method includes: sending first information, the first information being used to schedule the transmission of first uplink information on the frequency domain resources before switching in a first time unit, and the transmission of second uplink information on the frequency domain resources after switching in a second time unit; wherein the frequency domain resources before switching are M frequency domain resources, the frequency domain resources after switching are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; receiving the first uplink information on the frequency domain resources before switching based on the frequency domain resources where the switching time is located, and receiving the second uplink information on the frequency domain resources after switching; wherein the switching time is the time for switching from the frequency domain resources before switching to the frequency domain resources after switching; when the first condition is met, the frequency domain resource where the switching time is located is a frequency domain resource that does not have the highest priority in the frequency domain resource set, and the frequency domain resource where the switching time is located is the frequency domain resource before switching or the frequency domain resource after switching; the first condition includes at least one of the following: the frequency domain resources before switching include the first frequency domain resource, and the first frequency domain resource carries the first control information, and the first uplink information includes the first control information; or, the frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the second uplink information includes the second control information; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource, and the second uplink information includes the second control information; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the frequency domain resources after switching include the frequency domain resource with the highest priority in the frequency domain resource set, and the second uplink information includes the second control information; wherein, the frequency domain resource set includes the frequency domain resources before switching and the frequency domain resources after switching, or the frequency domain resource set includes the frequency domain resources before switching and the frequency domain resources after switching except the third frequency domain resources, the third frequency domain resources are the frequency domain resources included in the frequency domain resources before switching, and the third frequency domain resources are the frequency domain resources included in the frequency domain resources after switching.

[0047] By adopting the above method, the base station can receive the first uplink information on the frequency domain resources before the switching based on the frequency domain resources where the switching time is located, and receive the second uplink information on the frequency domain resources after the switching, thereby reducing the impact of the switching time on the uplink transmission and effectively improving the probability of the uplink control information (for example, the second control information) being correctly transmitted.

[0048] In one possible design, the frequency domain resources contained in the frequency domain resources before the switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after the switching carry the multiplexed second control information.

[0049] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0050] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0051] In one possible design, the second frequency domain resource also carries the second data information, and the second uplink information includes the second data information.

[0052] In one possible design, the first frequency domain resource also carries the first data information, and the first uplink information includes the first data information.

[0053] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the switched frequency domain resources.

[0054] In a fourth aspect, the present application provides a communication method, which can be executed by a base station or a module (such as a chip) in the base station. The method includes: sending first information, the first information is used to schedule the transmission of first uplink information on the frequency domain resources before switching in a first time unit, and the transmission of second uplink information on the frequency domain resources after switching in a second time unit; wherein the frequency domain resources before switching are M frequency domain resources, the frequency domain resources after switching are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; based on the frequency domain resources where the switching time is located, the first uplink information is received on the frequency domain resources before switching, and the second uplink information is received on the frequency domain resources after switching; wherein the switching time is the time from the frequency domain resources before switching to the frequency domain resources after switching; the frequency domain resources where the switching time is located are the frequency domain resources before switching, wherein the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second control information, and the second uplink information includes the second control information.

[0055] By adopting the above method, the base station can receive the first uplink information on the frequency domain resources before the switching based on the frequency domain resources where the switching time is located, and receive the second uplink information on the frequency domain resources after the switching, thereby reducing the impact of the switching time on the uplink transmission and effectively improving the probability of the uplink control information (for example, the second control information) being correctly transmitted.

[0056] In one possible design, the frequency domain resources contained in the frequency domain resources before switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after switching carry the multiplexed second control information.

[0057] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0058] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0059] In one possible design, the second frequency domain resource also carries the second data information, and the second uplink information includes the second data information.

[0060] In one possible design, the frequency domain resources before switching include first frequency domain resources, the first frequency domain resources carry the first data information and / or the first control information, and the first uplink information includes the first data information and / or the first control information.

[0061] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the switched frequency domain resources.

[0062] In a fifth aspect, the present application provides a communication device, which may be a first device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the first device that corresponds one-to-one to the method / operation / step / action described in any one of the first to second aspects, or may be capable of being used in combination with the first device.

[0063] In a sixth aspect, the present application provides a communication device comprising at least one processing element, wherein at least one storage element is used to store programs and data, and the at least one processing element is used to read and execute the programs and data stored in the storage element so that any method described in any one of the above aspects of the present application is implemented.

[0064] In one possible design, the communication device further includes the at least one storage element.

[0065] In a seventh aspect, the present application further provides a computer program, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0066] In an eighth aspect, the present application provides a communication device comprising: an interface circuit and at least one processor; the interface circuit is used to provide input and / or output of programs or instructions to the at least one processor; the at least one processor is used to execute the programs or instructions so that the communication device can implement any of the methods described in any of the above aspects.

[0067] In one possible manner, the communication device includes the at least one memory, and the at least one memory is used to store the program or instruction.

[0068] In a ninth aspect, the present application provides a computer storage medium storing a software program. When the software program is read and executed by one or more processors, the software program can implement any of the methods described in any of the above aspects.

[0069] In a tenth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0070] In the eleventh aspect, the present application provides a chip system, which includes at least one chip and a memory, and the at least one chip is used to read and execute the program stored in the memory to implement any of the methods described in any of the above aspects.

[0071] In the twelfth aspect, the present application provides a communication system, which includes at least one terminal and a base station, the terminal is used to execute any method described in the first aspect, and the base station is used to execute any method described in the second aspect.

[0072] Based on the implementations provided in the above aspects, this application can also be further combined to provide more implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] FIG1 shows a schematic diagram of the architecture of a communication system used in an embodiment of the present application;

[0074] FIG2 shows one of the schematic diagrams of the positions of frequency domain resources and switching time before and after switching in the present application;

[0075] FIG3 shows a second schematic diagram of the location of frequency domain resources and switching time before and after switching in the present application;

[0076] FIG4 shows an overview flow chart of a communication method in the present application;

[0077] FIG5 shows an overview flow chart of another communication method in the present application;

[0078] FIG6 shows a third schematic diagram of the location of frequency domain resources and switching time before and after switching in this application;

[0079] FIG7 shows a fourth schematic diagram of the positions of frequency domain resources and switching time before and after switching in the present application;

[0080] FIG8 shows a flowchart of another communication method in the present application;

[0081] FIG9 shows a schematic structural diagram of a communication device in the present application;

[0082] FIG10 shows a schematic structural diagram of another communication device in the present application. DETAILED DESCRIPTION

[0083] The specific implementation of the present application is described below with reference to the accompanying drawings in the embodiments of the present application. However, the implementation of the present application may also include combining these embodiments without departing from the spirit or scope of the present application, such as adopting other embodiments and making structural changes. Therefore, the detailed description of the following embodiments should not be understood in a restrictive sense. The terms used in the examples section of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application.

[0084] The specific implementation of the present application is described below with reference to the accompanying drawings in the embodiments of the present application. However, the implementation of the present application may also include combining these embodiments without departing from the spirit or scope of the present application, such as adopting other embodiments and making structural changes. Therefore, the detailed description of the following embodiments should not be understood in a restrictive sense. The terms used in the examples section of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application.

[0085] The embodiments of the present application can be applied to various communication systems, such as: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WIMAX) communication system, 5G system or new radio (NR), or applied to future communication systems or other similar communication systems.

[0086] 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 a radio access network 100 and a core network 200. Optionally, the communication system may also include the Internet 300. The radio access network 100 may include at least one radio access network device (such as 110a and 110b in Figure 1 ) and at least one terminal (such as 120a-120j in Figure 1 ). The terminal is wirelessly connected to the radio access network device, and the radio access network device is wirelessly or wiredly connected to the core network. The core network device and the radio access network device may be independent, distinct physical devices, or the core network device's functions and the radio access network device's logical functions may be integrated into the same physical device, or a single physical device may integrate some of the core network device's functions and some of the radio access network device's functions. Terminals and radio access network devices may be interconnected via wired or wireless connections. Figure 1 is merely a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in Figure 1 .

[0087] Radio access network equipment, referred to as network equipment, can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a 6th-generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. It can also be a module or unit that performs some of the functions of a base station, such as a centralized unit (CU) or a distributed unit (DU). The CU performs the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), as well as the service data adaptation protocol (SDAP). The DU performs the functions of the base station's radio link control layer and medium access control (MAC) layer, as well as some or all of the physical layer. For detailed descriptions of each of these protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The wireless access network device can 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 device form used by the wireless access network device. For ease of description, the following description uses a base station as an example of a wireless access network device.

[0088] A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal 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, etc. The terminal can be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, drone, helicopter, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0089] 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.

[0090] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. To terminals 120j accessing the wireless access network 100 via 120i, drone 120i is a base station. However, to base station 110a, 120i is a terminal, meaning that communication between 110a and 120i occurs via a wireless air interface protocol. Of course, communication between 110a and 120i can also occur 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 functionality, while 120a-120j in Figure 1 can be referred to as communication devices with terminal functionality.

[0091] Communication between base stations and terminals, between base stations, and between terminals can be carried out through authorized spectrum, unauthorized spectrum, or both; communication can be carried out through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0092] 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.

[0093] It can be understood that in the embodiments of the present application, the physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) are only used as examples of downlink data channels, downlink control channels, uplink control channels and uplink data channels, respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of the present application do not limit this.

[0094] Currently, NR uplink is affected by limited terminal power and insufficient uplink spectrum. NR introduces SUL as an alternative when the NR system's uplink coverage is insufficient. Among them, LTE's low-frequency band generally has better coverage performance, and a band can be selected from LTE's lower frequency bands as the SUL band. For example, the center frequency of the SUL band may include 700MHz, 800MHz, 1.8GHz, or 2.1GHz. Currently, when using the LTE band for NR transmission, the terminal can reuse the band with LTE UL TDD.

[0095] In addition, the new 4.9 GHz frequency band has the prospect of being used. This frequency band provides spectrum resources with higher bandwidth and can provide more sufficient uplink resources. Therefore, it is possible to consider expanding the uplink coverage on this frequency band, also known as the SUL frequency band, or the SUL2 frequency band. Among them, the 4.9 GHz frequency band can be a co-site or a different site, and this application does not limit this.

[0096] The base station can schedule the dynamic switching of terminals between frequency domain resources based on channel conditions and / or frequency band load conditions. The above technology can also be referred to as flexible spectrum access technology. In this application, frequency domain resources are frequency bands or carriers. Frequency bands and frequency segments are interchangeable. Each frequency band can include at least one component carrier (CC), also referred to as a carrier.

[0097] For example, the center frequency of the frequency domain resources that may participate in the frequency domain resource switching may include but is not limited to 700 MHz, 800 MHz, 900 MHz, 1.8 GHz, 2.1 GHz, 3.5 GHz or 4.9 GHz.

[0098] Among them, the switching between the above-mentioned frequency domain resources may involve switching between two or more frequency domain resources, for example, switching between three frequency domain resources, four frequency domain resources or more frequency domain resources. This application does not limit the specific number of frequency domain resources involved in the frequency domain resource switching. In this application, switching between two or more frequency domain resources can be understood as switching from M frequency domain resources to N frequency domain resources, where N and M are positive integers and the sum of M and N is greater than or equal to 2. For example, switching between two frequency domain resources can be switching from frequency domain resource 1 to frequency domain resource 2. For another example, switching between three frequency domain resources can be switching from frequency domain resource 1 and frequency domain resource 3 to frequency domain resource 4, or from frequency domain resource 1 to frequency domain resource 3 and frequency domain resource 4. For another example, switching between four frequency domain resources can be switching from frequency domain resource 1 and frequency domain resource 3 to frequency domain resource 2 and frequency domain resource 4. The above examples are not intended to limit this application. The frequency domain resources before switching can be one or two, and the frequency domain resources after switching can also be one or two. The frequency domain resources before the handover may have common frequency domain resources with the frequency domain resources after the handover (ie, overlap), or may not have common frequency domain resources (ie, no overlap).

[0099] In addition, the terminal can report the specific number of uplink transmission chains (transmission chain) that can be supported on each frequency domain resource through capability information, for example, 1 or 2. For example, there can be at most two transmission chains on a frequency band at the same time, and the two transmission chains on a frequency band can be on the same carrier or different carriers within the frequency band. The two transmission chains on a frequency band can be transmitted through one port (1port) or through two ports. When transmitting through two ports, each port transmission can correspond to one transmission chain. It should be noted that the transmission chain described in the embodiment of the present application can also be referred to as a radio frequency chain or a transmission chain, etc., and the name of the transmission chain is not specifically limited in the embodiment of the present application. The transmission chain described in the embodiment of the present application is mainly for uplink transmission, so it can be called an uplink transmission chain. For the sake of convenience, in the embodiment of the present application, one transmission chain is referred to as 1T or 1Tx, and two transmission chains are referred to as 2T or 2Tx.

[0100] When the base station schedules the terminal to send uplink information, the base station can also indicate the port configuration (such as the number of ports or port numbers) through downlink control information (DCI) or semi-static configuration. Alternatively, the base station can also indicate the transmission chain through DCI or semi-static configuration, that is, it can be clearly understood how many transmission chains or how many transmissions there are on which carrier. Among them, 1T or 1Tx can be called 1 transmission, and 2T or 2Tx can be called 2 transmissions. In the following embodiments of the present application, the base station can indicate the transmission chain through DCI or semi-static configuration.

[0101] When a base station schedules uplink transmissions, causing a terminal to switch between frequency domain resources, due to limitations on terminal capabilities, the terminal requires a certain amount of time to complete the switch from the frequency domain resource before the switch to the frequency domain resource after the switch. The duration required for the terminal to perform the frequency domain resource switch is the switching time. Alternatively, the switching time is the time it takes to switch from the frequency domain resource before the switch to the frequency domain resource after the switch. The switching time may also be referred to as the switching period (or switching gap), which is not limited in this application.

[0102] For example, the base station may schedule the terminal to transmit first uplink information on M frequency domain resources in a first time unit, and the base station may schedule the terminal to transmit second uplink information on N frequency domain resources in a second time unit. Therefore, the terminal needs to switch from M frequency domain resources to N frequency domain resources. The switching time is the time it takes to switch from M frequency domain resources to N frequency domain resources. The M frequency domain resources are the frequency domain resources before switching (switching-from), and the N frequency domain resources are the frequency domain resources after switching (switching-to).

[0103] The first time unit and the second time unit are adjacent time units. In the embodiment of the present application, the time unit can be a time slot, a subframe, a mini-slot / sub-slot, a mini-subframe, or a symbol. The first time unit can be understood as the last time unit before the switch, and the second time unit can be understood as the first time unit after the switch.

[0104] In particular, when the switching time is greater than the interval between two uplink transmissions, the switching time may be located in the frequency domain resource before the switch or in the frequency domain resource after the switch. Therefore, the frequency domain resource where the switching time is located needs to be specified. In other words, the terminal needs to determine the location of the switching time.

[0105] The switching time is located at the frequency domain resource before the switching, which can also be described as the switching time being located on one side of the frequency domain resource before the switching. The switching time is located at the frequency domain resource before the switching, which can mean that the switching time includes or is the last several symbols corresponding to the frequency domain resource before the switching. The switching time is located at the frequency domain resource after the switching, which can also be described as the switching time being located on one side of the frequency domain resource after the switching. The switching time is located at the frequency domain resource after the switching, which can mean that the switching time includes or is the first several symbols corresponding to the frequency domain resource after the switching.

[0106] Exemplarily, the number of specific symbols included in the switching time is related to the subcarrier spacing. For example, when the switching time is 140us, for a carrier with a subcarrier spacing of 15kHz, transmission on 4 symbols needs to be interrupted in order to perform switching, that is, the switching time includes the last 4 symbols corresponding to the carrier before switching, or the switching time includes the first 4 symbols corresponding to the carrier after switching.

[0107] Currently, in the scenario of switching between two frequency domain resources, the base station can configure the carrier index (CC index) and indicate the location of the switching time through radio resource control (RRC) signaling, for example, indicating which carrier corresponds to which carrier index the switching time is located. However, in the scenario of switching between more than two frequency domain resources, since there may be multiple frequency domain resource switching situations, continuing to indicate the location of the switching time through RRC signaling will incur large signaling overhead.

[0108] The protocol also stipulates that the base station can configure a priority for each frequency domain resource. For the frequency domain resources involved in a switch, the switching time is not located on the side where the frequency domain resource with the highest priority is located. Among them, the frequency domain resource with the highest priority may belong to the frequency domain resource before the switch or the frequency domain resource after the switch.

[0109] As shown in Figure 2, the frequency domain resources before switching are band A and band C, and the frequency domain resources after switching are band B and band D, wherein the priority order of band A, band B, band C and band D is: band A>band B>band C>band D. Therefore, based on the above-mentioned provision that the position of the switching time is not located on the side where the frequency domain resource with the highest priority is located, the switching time is located in band B and band D, or it can be described as the switching time is located in the frequency band after switching; or it can be described as the switching time is not located in the frequency band before switching.

[0110] As can be seen, if the frequency band before switching includes the frequency band with the highest priority, the switching time is located in the frequency band after switching. If the frequency band after switching includes the frequency band with the highest priority, the switching time is located in the frequency band before switching. The above method is relatively simple, but in some cases it may cause the interruption of important uplink information transmission and cannot ensure the effective transmission of important information.

[0111] The following is a scenario that may cause the interruption of important uplink information transmission:

[0112] In scenarios where PUCCH and PUSCH are transmitted in the same time slot, the information carried by the PUCCH (e.g., uplink control information (UCI)) will be multiplexed (multiplexed) on the CC where the PUSCH is located. In this application, multiplexing may also be referred to as associated channel. The information carried by the PUCCH may be referred to as UCI, multiplexed UCI, or associated channel UCI.

[0113] When there are multiple CCs for transmitting PUSCH, the multiplexed UCI is carried by the CC with the smallest serving cell index among the multiple CCs. For example, the multiplexed UCI is generally located in the first few symbols, such as the symbols around the demodulation reference signal (DMRS).

[0114] Furthermore, combined with the above content about switching time, it can be seen that if the switching time is located in the frequency domain resources after switching, the symbols occupied by the multiplexed UCI may exactly be the position of the switching time, that is, due to the existence of the switching time, the transmission of the multiplexed UCI may be interrupted, that is, important uplink information cannot be transmitted correctly.

[0115] For example, the frequency domain resources after the handover include both the CC used for PUCCH transmission and the CC used for PUSCH transmission. In this case, the UE can first determine which CC used for PUSCH transmission to multiplex the UCI carried by the PUCCH. Then, based on the priority of the frequency bands of the CCs involved before and after the handover, it can determine whether the handover time is in the CC before the handover or in the CC after the handover.

[0116] Specifically, as shown in Figure 3, the frequency domain resources before the handover are located in bands A and C, while the frequency domain resources after the handover are located in bands B and D. CC1 in band B is used to transmit the PUCCH (i.e., UCI), and CC2 in band B is used to transmit the PUSCH. The terminal can multiplex the UCI onto the CC with the smallest serving cell index, for example, the CC with the smallest serving cell index is located in band D. Then, considering the priority ranking of each band, for example, the priority order of bands A, B, C, and D is: Band A > Band B > Band C > Band D. Band A has the highest priority, and the frequency domain resources before the handover include CCs in band A. Therefore, the handover time is located in the frequency domain resources after the handover, namely, CCs in bands B and D. The first few symbols of the CC in band D are also used to carry multiplexed UCI. Therefore, the transmission of multiplexed UCI is affected by the handover time, resulting in an interruption in UCI transmission, which prevents correct UCI transmission. In addition, even if the switching time position is determined first and then the CC to which the UCI is multiplexed is determined, the problem cannot be solved.

[0117] In order to solve the above problems, based on the above network system architecture and the content of the above related technical introduction, several possible communication methods are provided in the embodiments of the present application. The execution subjects of each communication method are introduced using base stations and terminals as examples. For example, the base station can be the access network device 110a or the access network device 110b in Figure 1 above. The terminal can be any of the terminals shown in Figure 1 above. In addition, it should be understood that the base station can also be replaced by a communication device with base station functions or a chip, unit or module inside a communication device with base station functions. The terminal can also be replaced by a communication device with terminal functions or a chip, unit or module inside a communication device with terminal functions.

[0118] The present application provides a communication method, as shown in FIG4 , which includes:

[0119] Step 400: The base station sends first information, and the terminal receives the first information accordingly.

[0120] The first information is used to schedule the transmission of first uplink information on M frequency domain resources in a first time unit, and the transmission of second uplink information on N frequency domain resources in a second time unit. The M frequency domain resources are the frequency domain resources before switching, and the N frequency domain resources are the frequency domain resources after switching. M and N are positive integers, and the sum of M and N is greater than or equal to 2. Exemplarily, the frequency domain resources are frequency bands or carriers. The first time unit and the second time unit are adjacent time units. Exemplarily, the time unit can be a time slot, a subframe, a mini-time slot, a mini-subframe, or a symbol, etc. The first time unit can be understood as the last time unit before switching, and the second time unit can be understood as the first time unit after switching.

[0121] In one possible implementation, the base station may schedule, through a piece of information (e.g., DCI1), the terminal to transmit the first uplink information on M frequency domain resources in a first time unit, and to transmit the second uplink information on N frequency domain resources in a second time unit. Alternatively, the base station may schedule, through a piece of information (e.g., DCI1), the terminal to transmit the first uplink information on M frequency domain resources in a first time unit, and schedule, through another piece of information (e.g., DCI2), the terminal to transmit the second uplink information on N frequency domain resources in a second time unit.

[0122] Step 410: When uplink transmission is switched from the frequency domain resource before switching to the frequency domain resource after switching, the terminal determines the frequency domain resource where the switching time is located.

[0123] Exemplarily, the terminal can determine two uplink transmissions based on the first information, and the need to switch from the frequency domain resources before the switch to the frequency domain resources after the switch. The first uplink transmission refers to the transmission of the first uplink information on M frequency domain resources in the first time unit, and the second uplink transmission refers to the transmission of the second uplink information on N frequency domain resources in the second time unit. If the time gap between the end time of the first uplink transmission and the start time of the second uplink transmission is less than the switching time, the terminal determines the frequency domain resource where the switching time is located, or in other words, the terminal determines the position of the switching time.

[0124] Among them, the switching time is the time for switching from the frequency domain resources before switching to the frequency domain resources after switching, that is, the time for switching from M frequency domain resources to N frequency domain resources. When the first condition is met, the frequency domain resource where the switching time is located is the frequency domain resource that does not have the highest priority in the frequency domain resource set, and the frequency domain resource where the switching time is located is the frequency domain resource before switching or the frequency domain resource after switching. It can also be described as, when the first condition is met, the frequency domain resource where the switching time is located is the frequency domain resource before switching, and the frequency domain resource before switching does not include the frequency domain resource with the highest priority, or, the frequency domain resource where the switching time is located is the frequency domain resource after switching, and the frequency domain resource after switching does not include the frequency domain resource with the highest priority. In this application, the frequency domain resource that does not have the highest priority can also be understood as the side where the frequency domain resource that does not have the highest priority is located, or the frequency domain resource before switching where the frequency domain resource that does not have the highest priority is located, or the frequency domain resource after switching where the frequency domain resource that does not have the highest priority is located. Among them, the frequency domain resource set can be obtained in but not limited to the following two ways:

[0125] Mode 1: The frequency domain resource set includes the frequency domain resources before the handover and the frequency domain resources after the handover. It can be understood that the frequency domain resource set is the union of the frequency domain resources before the handover and the frequency domain resources after the handover.

[0126] For example, the frequency domain resources before switching are frequency band A and frequency band B, and the frequency domain resources after switching are frequency band C and frequency band D, then the frequency domain resource set includes frequency band A, frequency band B, frequency band C and frequency band D.

[0127] For another example, the frequency domain resources before switching are frequency band A and frequency band B, and the frequency domain resources after switching are frequency band B and frequency band D, then the frequency domain resource set includes frequency band A, frequency band B and frequency band D.

[0128] Mode 2: The frequency domain resource set includes the frequency domain resources before the handover and the frequency domain resources after the handover, excluding the third frequency domain resources. The third frequency domain resources are the frequency domain resources included in the frequency domain resources before the handover, and the third frequency domain resources are the frequency domain resources included in the frequency domain resources after the handover. It can be understood that the frequency domain resource set includes the frequency domain resources before the handover and the frequency domain resources after the handover, and the frequency domain resource set does not include the third frequency domain resources, where the number of third frequency domain resources can be one or more.

[0129] For example, the frequency domain resources before switching are band A and band B, and the frequency domain resources after switching are band B and band D. Since the frequency domain resources before switching include band B and the frequency domain resources after switching also include band B, the frequency domain resource set includes band A and band D.

[0130] Exemplarily, the terminal may determine a frequency domain resource with the highest priority in the frequency domain resource set according to the priorities of the respective frequency domain resources included in the frequency domain resource set.

[0131] For example, the frequency domain resource set is band A, band B and band D, and the priority order of band A, band B, band C and band D is: band A>band B>band C>band D, then the terminal can determine that the frequency domain resource with the highest priority in the frequency domain resource set is band A.

[0132] In one possible design, the frequency domain resources contained in the frequency domain resources before switching carry multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after switching carry multiplexed second control information.

[0133] The frequency domain resources included in the frequency domain resources before the switching carry the multiplexed first control information. This can also be understood as follows: the frequency domain resources before the switching (i.e., the M frequency domain resources) include both frequency domain resources for transmitting the physical uplink control channel and one or more frequency domain resources for transmitting the physical uplink data channel, wherein the first control information is multiplexed onto one frequency domain resource for transmitting the physical uplink data channel. The first control information is control information contained in or carried by the physical uplink control channel.

[0134] The frequency domain resources included in the frequency domain resources before the switch carry the multiplexed first control information, which can also be understood as follows: at least one frequency domain resource included in the frequency domain resources before the switch (i.e., the M frequency domain resources) is scheduled to transmit physical uplink control information (transmitted on a physical uplink control channel), and the other frequency domain resources are scheduled to transmit physical uplink data information (transmitted on a physical uplink data channel), wherein the first control information (i.e., the physical uplink control information) is multiplexed onto a physical uplink data channel used to transmit physical uplink data information. The first control information is the control information contained or carried on the physical uplink control channel.

[0135] The frequency domain resources included in the switched frequency domain resources carry the multiplexed second control information. This can also be understood as follows: the switched frequency domain resources (i.e., N frequency domain resources) include both frequency domain resources for transmitting a physical uplink control channel and one or more frequency domain resources for transmitting a physical uplink data channel, wherein the second control information is multiplexed onto one frequency domain resource for transmitting a physical uplink data channel. The second control information is control information contained in or carried by the physical uplink control channel.

[0136] The frequency domain resources included in the switched frequency domain resources carry the multiplexed second control information, which can also be understood as follows: at least one frequency domain resource included in the switched frequency domain resources (i.e., N frequency domain resources) is scheduled to transmit physical uplink control information (transmitted on a physical uplink control channel), and the other frequency domain resources are scheduled to transmit physical uplink data information (transmitted on a physical uplink data channel), wherein the second control information (i.e., the physical uplink control information) is multiplexed onto a physical uplink data channel used to transmit physical uplink data information. The second control information is the control information contained or carried on the physical uplink control channel.

[0137] In this application, control information is multiplexed onto a frequency domain resource for transmitting a physical uplink data channel, which can also be understood as control information being multiplexed onto a physical uplink data channel and being jointly carried on the frequency domain resource for transmitting the physical uplink data channel.

[0138] In one possible design, the second control information is multiplexed into the data channel containing the second data information. That is, the data channel containing the second data information carries the multiplexed second control information and second data information. In other words, the multiplexed second control information and second data information are carried by the same data channel, and the frequency domain resources used to transmit the data channel belong to the switched frequency domain resources.

[0139] In the present application, data channel, uplink data channel, physical uplink data channel, and physical uplink shared channel can be replaced with each other.

[0140] The first condition includes at least one of the following, that is, the first condition may include at least one of the following (1) to (4).

[0141] (1) The frequency domain resources before switching include first frequency domain resources, and the first frequency domain resources carry first control information. Exemplarily, the first frequency domain resources may also carry first data information.

[0142] The above (1) can also be replaced by: the frequency domain resources before switching include the first frequency domain resources, and the first frequency domain resources carry the physical uplink control channel; or, the frequency domain resources before switching include the first frequency domain resources, and the first frequency domain resources carry the physical uplink data channel and the physical uplink control channel; or, the frequency domain resources before switching include the first frequency domain resources, and the first frequency domain resources carry the first control information and the first data information; or, the frequency domain resources before switching include the first frequency domain resources, and the first frequency domain resources carry the first data information and the multiplexed first control information.

[0143] Exemplarily, if the frequency domain resources before switching include the first frequency domain resources, and the first frequency domain resources carry the first data information and the multiplexed first control information, the terminal determines that (1) is satisfied, that is, the terminal determines that the first condition is satisfied, and the terminal can determine the frequency domain resource with the highest priority in the frequency domain resource set according to the priority of each frequency domain resource included in the frequency domain resource set. When the frequency domain resource with the highest priority belongs to the frequency domain resource before switching, the switching time is located at the frequency domain resource after switching. When the frequency domain resource with the highest priority belongs to the frequency domain resource after switching, the switching time is located at the frequency domain resource before switching.

[0144] It can be understood that in this application, A carries B, which can also be replaced by A being scheduled to transmit B, or A being used to transmit B.

[0145] (2) The frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the second control information.

[0146] Exemplarily, the second frequency domain resource may also carry second data information. Exemplarily, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching. Alternatively, when the frequency domain resources after switching include multiple frequency domain resources for transmitting physical uplink data channels, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching.

[0147] The above (2) can also be replaced by: the frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the physical uplink control channel; or, the frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the physical uplink data channel and the physical uplink control channel; or, the frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the second control information and the second data information; or, the frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the second data information and the multiplexed second control information.

[0148] Exemplarily, if the frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the second data information and the multiplexed second control information, therefore, the terminal determines that the above (2) is satisfied, that is, the terminal determines that the first condition is satisfied, and the terminal can determine the frequency domain resource with the highest priority in the frequency domain resource set according to the priority of each frequency domain resource included in the frequency domain resource set. When the frequency domain resource with the highest priority belongs to the frequency domain resource before switching, the switching time is located in the frequency domain resource after switching. When the frequency domain resource with the highest priority belongs to the frequency domain resource after switching, the switching time is located in the frequency domain resource before switching.

[0149] For example, the frequency domain resources before switching are frequency band A and frequency band C, and the frequency domain resources after switching are frequency band B and frequency band D, and frequency band B and frequency band D both transmit only PUSCH, wherein the frequency domain resource set includes frequency band A, frequency band B, frequency band C and frequency band D, and the priority order of frequency band A, frequency band B, frequency band C and frequency band D is: frequency band A>frequency band B>frequency band C>frequency band D. Therefore, the terminal determines that the above (2) is satisfied. Since the position of the switching time is not located on the side of the frequency domain resource with the highest priority in the frequency domain resource set, the terminal can determine that the switching time is located in frequency band B and frequency band D based on the above priority order, that is, the switching time is located in the resource before the switching.

[0150] (3) The frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource.

[0151] Exemplarily, the second frequency domain resource may also carry second data information. Exemplarily, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching. Alternatively, when the frequency domain resources after switching include multiple frequency domain resources for transmitting physical uplink data channels, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching.

[0152] Among them, the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource. It can also be understood that the second frequency domain resource is regarded as the frequency domain resource with the highest priority in the frequency domain resource set, or the frequency domain resource with the smallest service cell index in the frequency domain resources after switching is regarded as the frequency domain resource with the highest priority in the frequency domain resource set.

[0153] The above (3) can also be replaced by: the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the physical uplink control channel, and the frequency domain resources with the highest priority in the frequency domain resource set are the second frequency domain resources; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the physical uplink data channel and the physical uplink control channel, and the frequency domain resources with the highest priority in the frequency domain resource set are the second frequency domain resources; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information and the second data information, and the frequency domain resources with the highest priority in the frequency domain resource set are the second frequency domain resources; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second data information and the multiplexed second control information, and the frequency domain resources with the highest priority in the frequency domain resource set are the second frequency domain resources.

[0154] Exemplarily, if the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second data information and multiplexed second control information, and the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource, the terminal determines that the above (3) is satisfied, that is, the terminal determines that the first condition is satisfied. Furthermore, since the position of the switching time is not located on the side where the frequency domain resource with the highest priority in the frequency domain resource set is located, and the frequency domain resource with the highest priority is the second frequency domain resource, the terminal determines that the switching time is located in the frequency domain resource before the switching.

[0155] For example, the frequency domain resources before switching are band A and band C, and the frequency domain resources after switching are band B and band D. CC1 included in band B is used to transmit PUSCH, and CC2 included in band B is used to transmit PUCCH. The terminal can multiplex UCI to the CC with the smallest serving cell index. For example, the CC with the smallest serving cell index is located in band D. Among them, the frequency domain resource set includes band A, band B, band C and band D. The priority order of band A, band B, band C and band D is: band D>band C>band B>band A. Therefore, the terminal determines that the above (3) is satisfied. Since the location of the switching time is not located on the side of the frequency domain resource with the highest priority in the frequency domain resource set, the terminal knows that band D is the frequency domain resource with the highest priority in the frequency domain resource set based on the above priority order. The terminal can determine that the switching time is located in band A and band C, that is, the frequency domain resource before switching.

[0156] (4) The frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information. The frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set.

[0157] Among them, the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set. It can be understood that the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource, or a frequency domain resource other than the second frequency domain resource in the frequency domain resources after switching, or it can also be understood that the frequency domain resource with the highest priority in the frequency domain resource set belongs to the frequency domain resource after switching.

[0158] Exemplarily, the second frequency domain resource may also carry second data information. Exemplarily, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching. Alternatively, when the frequency domain resources after switching include multiple frequency domain resources for transmitting physical uplink data channels, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching.

[0159] The above (4) can also be replaced by: the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the physical uplink control channel, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the physical uplink data channel and the physical uplink control channel, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information and the second data information, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second data information and the multiplexed second control information, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set.

[0160] Exemplarily, if the frequency domain resources after switching include a second frequency domain resource, and the second frequency domain resource carries the second data information and the multiplexed second control information, the frequency domain resources after switching include the frequency domain resource with the highest priority in the frequency domain resource set. Therefore, the terminal determines that the above (4) is satisfied. Further, that is, the terminal determines that the first condition is satisfied. Since the position of the switching time is not located on the side where the frequency domain resource with the highest priority in the frequency domain resource set is located, and the frequency domain resources after switching include the frequency domain resource with the highest priority in the frequency domain resource set, the terminal determines that the switching time is located in the frequency domain resource before the switching.

[0161] For example, the frequency domain resources before switching are band A and band C, and the frequency domain resources after switching are band B and band D. CC1 included in band B is used to transmit PUSCH, and CC2 included in band B is used to transmit PUCCH. The terminal can multiplex UCI to the CC with the smallest serving cell index. For example, the CC with the smallest serving cell index is located in band D. Among them, the priority order of band A, band B, band C and band D is: band B>band C>band D>band A. Therefore, the terminal determines that the above (4) is satisfied. Since the location of the switching time is not located on the side of the frequency domain resource with the highest priority in the frequency domain resource set, the terminal knows that band B is the frequency domain resource with the highest priority in the frequency domain resource set based on the above priority order. The terminal can determine that the switching time is located in band A and band C, that is, the frequency domain resource before switching.

[0162] For example, the first condition described above is for illustrative purposes only and is not intended to limit this application. The first condition may be configured by pre-definition or signaling. Pre-definition may be understood as a protocol agreement. Signaling configuration may be understood as pre-configuration for the terminal via signaling, such as at least one of RRC signaling or MAC signaling.

[0163] Step 420: The base station receives the first uplink information on the frequency domain resources before the switching, and receives the second uplink information on the frequency domain resources after the switching, based on the frequency domain resources at the switching time. Accordingly, the terminal sends the first uplink information on M frequency domain resources in the first time unit, and the terminal sends the second uplink information on N frequency domain resources in the second time unit.

[0164] Sending the second uplink information on N frequency domain resources can also be understood as: based on the terminal's radio frequency chain capability limitation, sending the second uplink information on some of the N frequency domain resources. The some of the N frequency domain resources are the frequency domain resources that the terminal ultimately determines can perform uplink transmission.

[0165] Among them, the first uplink information is the information transmitted on M frequency domain resources, and the first uplink information includes first data information and / or first control information. The second uplink information is the information transmitted on N frequency domain resources, and the second uplink information includes second control information, or the second uplink information includes second data information and second control information. For example, the second control information is UCI. Among them, the second uplink information includes the second data information and the second control information, and it can also be replaced by the second uplink information including the second data information and the multiplexed second control information. For example, the multiplexed second control information is multiplexed UCI. In this application, multiplexing can also be understood as being multiplexed.

[0166] Exemplarily, the second control information includes at least one of a hybrid automatic repeat request (HARQ), or periodic or aperiodic channel state information (CSI), or a scheduling request (SR). For example, CSI may include, but is not limited to, one or more of a rank indication (RI), a precoding type indicator (PTI), a channel state information reference signal (CSI-reference signal, CSI-RS) resource indication (CSI-RS resource indication or indicator, CRI), and a wideband precoding matrix indication (wideband PMI only).

[0167] Using the above method, when the uplink transmission switches from the frequency domain resources before the switch to the frequency domain resources after the switch, the terminal can determine the frequency domain resources where the switching time is located in combination with the first condition. The position of the switching time determined by the above method can reduce the impact of the switching time on the uplink transmission, and can effectively improve the probability of the uplink control information (for example, the second control information) being correctly transmitted.

[0168] The present application also provides a communication method, as shown in FIG5 , which includes:

[0169] Step 500: The base station sends first information, and the terminal receives the first information accordingly.

[0170] For details, please refer to the above step 400, which will not be repeated here.

[0171] Step 510: When uplink transmission is switched from the frequency domain resource before switching to the frequency domain resource after switching, the terminal determines the frequency domain resource where the switching time is located.

[0172] Exemplarily, the terminal may determine that it needs to switch from the frequency domain resource before the switch to the frequency domain resource after the switch based on the first information. Further, the terminal determines the frequency domain resource where the switch time is located, or in other words, the terminal determines the position of the switch time.

[0173] The switching time is the time for switching from the frequency domain resources before the switching to the frequency domain resources after the switching, that is, the time for switching from M frequency domain resources to N frequency domain resources. The frequency domain resources at the switching time are the frequency domain resources before the switching, wherein the frequency domain resources after the switching include the second frequency domain resources, and the second frequency domain resources carry the second control information.

[0174] In one possible design, the frequency domain resources contained in the frequency domain resources before switching carry multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after switching carry multiplexed second control information.

[0175] The frequency domain resources included in the frequency domain resources before the switching carry the multiplexed first control information. This can also be understood as follows: the frequency domain resources before the switching (i.e., the M frequency domain resources) include both frequency domain resources for transmitting the physical uplink control channel and one or more frequency domain resources for transmitting the physical uplink data channel, wherein the first control information is multiplexed onto one frequency domain resource for transmitting the physical uplink data channel. The first control information is control information contained in or carried by the physical uplink control channel.

[0176] The frequency domain resources included in the frequency domain resources before the switch carry the multiplexed first control information, which can also be understood as follows: at least one frequency domain resource included in the frequency domain resources before the switch (i.e., the M frequency domain resources) is scheduled to transmit physical uplink control information (transmitted on a physical uplink control channel), and the other frequency domain resources are scheduled to transmit physical uplink data information (transmitted on a physical uplink data channel), wherein the first control information (i.e., the physical uplink control information) is multiplexed onto a physical uplink data channel used to transmit physical uplink data information. The first control information is the control information contained or carried on the physical uplink control channel.

[0177] The frequency domain resources included in the switched frequency domain resources carry the multiplexed second control information. This can also be understood as follows: the switched frequency domain resources (i.e., N frequency domain resources) include both frequency domain resources for transmitting a physical uplink control channel and one or more frequency domain resources for transmitting a physical uplink data channel, wherein the second control information is multiplexed onto one frequency domain resource for transmitting a physical uplink data channel. The second control information is control information contained in or carried by the physical uplink control channel.

[0178] The frequency domain resources included in the switched frequency domain resources carry the multiplexed second control information, which can also be understood as follows: at least one frequency domain resource included in the switched frequency domain resources (i.e., N frequency domain resources) is scheduled to transmit physical uplink control information (transmitted on a physical uplink control channel), and the other frequency domain resources are scheduled to transmit physical uplink data information (transmitted on a physical uplink data channel), wherein the second control information (i.e., the physical uplink control information) is multiplexed onto a physical uplink data channel used to transmit physical uplink data information. The second control information is the control information contained or carried on the physical uplink control channel.

[0179] In this application, control information is multiplexed onto a frequency domain resource for transmitting a physical uplink data channel, which can also be understood as control information being multiplexed onto a physical uplink data channel and being jointly carried on the frequency domain resource for transmitting the physical uplink data channel.

[0180] In one possible design, the first control information is multiplexed into the data channel containing the first data information. That is, the data channel containing the first data information carries the multiplexed first control information and the first data information. In other words, the multiplexed first control information and the first data information are carried by the same data channel, and the frequency domain resources used to transmit the data channel are the same frequency domain resources before the handover.

[0181] In one possible design, the second control information is multiplexed into the data channel containing the second data information. That is, the data channel containing the second data information carries the multiplexed second control information and second data information. In other words, the multiplexed second control information and second data information are carried by the same data channel, and the frequency domain resources used to transmit the data channel belong to the switched frequency domain resources.

[0182] Exemplarily, the second frequency domain resource may also carry second data information. Exemplarily, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching. Alternatively, when the frequency domain resources after switching include multiple frequency domain resources for transmitting physical uplink data channels, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the frequency domain resources after switching.

[0183] Among them, the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second control information, which can also be replaced by the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry physical uplink control channels; or, the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry physical uplink data channels and physical uplink control channels; or, the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second control information and second data information; or, the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second data information and multiplexed second control information.

[0184] The frequency domain resource where the switching time is located is the frequency domain resource before the switching, wherein the frequency domain resource after the switching includes the second frequency domain resource, and the second frequency domain resource carries the second control information. It can also be understood that if the frequency domain resource after the switching includes the second frequency domain resource, and the second frequency domain resource carries the second control information, then the terminal determines that the frequency domain resource where the switching time is located is the frequency domain resource before the switching. At this time, the terminal does not need to judge the priority of the frequency domain resource before or after the switching, and directly determines that the frequency domain resource where the switching time is located is the frequency domain resource before the switching. In addition, if the frequency domain resource after the switching does not include the second frequency domain resource, that is, the frequency domain resource after the switching does not carry uplink control information (or physical uplink control channel), then the terminal can determine the position of the switching time based on the rule that the position of the switching time is not located on the side of the frequency domain resource with the highest priority in the frequency domain resource set. At this time, the frequency domain resource where the switching time is located can be the frequency domain resource before the switching or the frequency domain resource after the switching.

[0185] Exemplarily, the frequency domain resources before switching may include first frequency domain resources, and the first frequency domain resources carry first data information and / or first control information, which is not limited in this application.

[0186] Step 520: The base station receives the first uplink information on the frequency domain resources before the switching, and receives the second uplink information on the frequency domain resources after the switching, based on the frequency domain resources at the switching time. Accordingly, the terminal sends the first uplink information on M frequency domain resources in the first time unit, and the terminal sends the second uplink information on N frequency domain resources in the second time unit.

[0187] Sending the second uplink information on N frequency domain resources can also be understood as: based on the terminal's radio frequency chain capability limitation, sending the second uplink information on some of the N frequency domain resources. The some of the N frequency domain resources are the frequency domain resources that the terminal ultimately determines can perform uplink transmission.

[0188] For details, please refer to the above step 420, which will not be repeated here.

[0189] Using the above method, when the frequency domain resources after switching include the second frequency domain resources and the second frequency domain resources carry the second control information, the terminal determines that the frequency domain resources where the switching time is located are the frequency domain resources before switching, rather than the frequency domain resources after switching, thereby reducing the impact of the switching time on the uplink transmission and effectively improving the probability of the uplink control information (for example, the second control information) being correctly transmitted.

[0190] If the frequency domain resources after switching include multiple frequency domain resources for transmitting physical uplink data channels, and the number of frequency domain resources for transmitting physical uplink data channels exceeds the carrier aggregation (CA) capability of the terminal or the number of transmission chains supported by the terminal, how the terminal determines which physical uplink data channel to send and how to multiplex the physical uplink control channel onto which frequency domain resource for transmitting the physical uplink data channel is also a problem worthy of attention.

[0191] For example, the terminal may adopt the following method A or method B to determine which physical uplink data channel to send, and to which frequency domain resource for transmitting the physical uplink data channel to multiplex the physical uplink control channel:

[0192] Method A: The terminal may determine K frequency domain resources from the switched frequency domain resources, where K is an integer greater than or equal to 2 and less than N. Exemplarily, when the maximum number of carriers K supported by the terminal for CA or the number of transmission chains K supported by the terminal is less than N, K frequency domain resources are determined from the switched frequency domain resources. That is, the terminal determines to transmit the physical uplink data channel on K frequency domain resources out of the N frequency domain resources.

[0193] In one possible implementation, when the terminal determines K frequency domain resources from the switched frequency domain resources, the terminal determines the K frequency domain resources based on the priorities corresponding to the switched frequency domain resources. Alternatively, the K frequency domain resources can be determined based on the priorities of the switched frequency domain resources (i.e., the N frequency domain resources).

[0194] Furthermore, the terminal may determine a second frequency domain resource from the K frequency domain resources, where the second frequency domain resource is a frequency domain resource with a minimum serving cell index among the K frequency domain resources, wherein the second frequency domain resource carries the second data information and the multiplexed second control information.

[0195] For example, as shown in Figure 6, assuming N = 3 and K = 2, the frequency domain resources before switching are Band A and Band C, and the frequency domain resources after switching are Band A, Band B, and Band D. Band A and Band D are used to transmit the PUSCH, CC1 included in Band B is used to transmit the PUSCH, and CC2 included in Band B is used to transmit the PUCCH. The terminal supports two transmission chains, and the priority order of Band A, Band B, Band C, and Band D is: Band A > Band B > Band C > Band D. Therefore, the terminal determines that N > K and selects two of the three bands based on their priority order after switching. For example, the terminal determines Band A and Band B from Band A, Band B, and Band D. Furthermore, assuming that the serving cell index corresponding to Band A is smaller than the serving cell index corresponding to Band B, the terminal multiplexes the PUCCH onto Band A. That is, the terminal ultimately selects frequency band A and frequency band B from frequency band A, frequency band B, and frequency band D, where frequency band A is used to carry the multiplexed UCI.

[0196] Furthermore, the position of the switching time may be determined in combination with the embodiment shown in FIG. 4 or FIG. 5 , which will not be described in detail here.

[0197] Using the above-mentioned method A, the terminal first determines to transmit the physical uplink data channel on K frequency domain resources among the N frequency domain resources, and then determines on which frequency domain resource among the K frequency domain resources the physical uplink control channel is multiplexed.

[0198] Method B:

[0199] The terminal can determine a second frequency domain resource from the switched frequency domain resources. The second frequency domain resource is the frequency domain resource with the smallest serving cell index among the switched frequency domain resources. The second frequency domain resource carries the second data information and the multiplexed second control information. In other words, the terminal first determines which frequency domain resource used to transmit the physical uplink data channel to multiplex the physical uplink control channel.

[0200] Then, the terminal determines K-1 frequency domain resources from the frequency domain resources after the switch, excluding the second frequency domain resources, where K is an integer greater than or equal to 2 and K is less than N. Exemplarily, when the maximum number of carriers K supported by the terminal for CA or the number of transmission chains supported by the terminal is less than N, the terminal determines K-1 frequency domain resources from the frequency domain resources after the switch, excluding the second frequency domain resources. That is, the terminal determines to transmit the physical uplink data channel on K frequency domain resources among the N frequency domain resources, where the terminal first determines the second frequency domain resources and then determines the other K-1 frequency domains.

[0201] For example, as shown in Figure 7, assuming N = 3 and K = 2, the frequency domain resources before switching are Band A and Band C, and the frequency domain resources after switching are Band A, Band B, and Band D. Band A and Band D are used to transmit the PUSCH, CC1 included in Band B is used to transmit the PUSCH, and CC2 included in Band B is used to transmit the PUCCH. The terminal supports two transmission chains, where the priority of Band A, Band B, Band C, and Band D is: Band A > Band B > Band C > Band D. Therefore, the terminal determines that N > K. Assuming that the CC with the smallest serving cell index is in Band D, the terminal determines to multiplex the PUCCH onto Band D. Since Band A has a higher priority than Band B, the terminal selects Band A. Ultimately, the terminal selects Band D over Band A from among Band A, Band B, and Band D, with Band D being used to carry the multiplexed UCI.

[0202] Furthermore, the position of the switching time may be determined in combination with the embodiment shown in FIG. 4 or FIG. 5 , which will not be described in detail here.

[0203] In the above-mentioned method B, the terminal first determines which frequency domain resource for transmitting the physical uplink data channel is multiplexed onto the physical uplink control channel, and then determines the other K-1 frequency domain resources.

[0204] As can be seen from the above, using the above-mentioned method A and method B, when the number of frequency domain resources after switching exceeds the CA capability or the number of transmission chains supported by the terminal, the terminal can determine the frequency domain resources used to transmit the physical uplink data channel and the frequency domain resources used to carry the multiplexed uplink control information (such as multiplexed DCI). It should be noted that the above-mentioned method A and method B can be combined with the embodiment shown in Figure 4 or Figure 5, or method A and method B can also be independent of the embodiment shown in Figure 4 or Figure 5.

[0205] The present application also provides a communication method, as shown in FIG8 , which includes:

[0206] Step 800: The terminal sends its capability information to the base station. Correspondingly, the base station receives the capability information from the terminal.

[0207] Among them, the terminal capability information indicates that when the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second data information and multiplexed second control information, the terminal supports the switching time position located in the frequency domain resources before switching or only in the frequency domain resources before switching.

[0208] The switching time is located in the frequency domain resources before the switching, that is, the frequency domain resources where the switching time is located are the frequency domain resources before the switching. It can also be understood that the terminal's capability information indicates that when the frequency domain resources after the switching include a second frequency domain resource, and the second frequency domain resource carries second data information and multiplexed second control information, the terminal supports determination of the switching time location not in accordance with existing protocol rules. The existing protocol rules stipulate that the switching time location is a frequency domain resource that does not have the highest priority.

[0209] It can also be understood that the terminal's capability information indicates that when the frequency domain resources after switching include a second frequency domain resource, and the second frequency domain resource carries second data information and multiplexed second control information, the terminal supports the switching time position that is not located on the side where the frequency domain resource with the highest priority is located.

[0210] In this application, "located at" and "for" can be replaced with each other.

[0211] It can also be understood that the terminal's capability information indicates that when the frequency domain resources after switching include a second frequency domain resource, and the second frequency domain resource carries second data information and multiplexed second control information, the terminal supports treating the second frequency domain resource as the frequency domain resource with the highest priority in the frequency domain resource set.

[0212] It can also be understood that when the terminal's capability information indicates that the frequency domain resources after switching include a second frequency domain resource, and the second frequency domain resource carries second data information and multiplexed second control information, the terminal supports treating the second frequency domain resource as the frequency domain resource with the highest priority in the frequency domain resource set, and the switching time position is not located on the side where the frequency domain resource with the highest priority is located.

[0213] In one possible design, the frequency domain resources included in the switched frequency domain resources carry the multiplexed second control information. It can also be understood that the switched frequency domain resources include frequency domain resources for transmitting a physical uplink control channel and one or more frequency domain resources for transmitting a physical uplink data channel, and the second control information is multiplexed onto one frequency domain resource for transmitting a physical uplink data channel.

[0214] In one possible design, the second control information is multiplexed into the data channel containing the second data information. That is, the data channel containing the second data information carries the multiplexed second control information and second data information. In other words, the multiplexed second control information and second data information are carried by the same data channel, and the frequency domain resources used to transmit the data channel belong to the switched frequency domain resources.

[0215] The frequency domain resources included in the switched frequency domain resources carry the multiplexed second control information. This can also be understood as follows: the switched frequency domain resources (i.e., N frequency domain resources) include both frequency domain resources for transmitting a physical uplink control channel and one or more frequency domain resources for transmitting a physical uplink data channel, wherein the second control information is multiplexed onto one frequency domain resource for transmitting a physical uplink data channel. The second control information is control information contained in or carried by the physical uplink control channel.

[0216] The frequency domain resources included in the switched frequency domain resources carry the multiplexed second control information, which can also be understood as follows: at least one frequency domain resource included in the switched frequency domain resources (i.e., N frequency domain resources) is scheduled to transmit physical uplink control information (transmitted on a physical uplink control channel), and the other frequency domain resources are scheduled to transmit physical uplink data information (transmitted on a physical uplink data channel), wherein the second control information (i.e., the physical uplink control information) is multiplexed onto a physical uplink data channel used to transmit physical uplink data information. The second control information is the control information contained or carried on the physical uplink control channel.

[0217] In this application, control information is multiplexed onto a frequency domain resource for transmitting a physical uplink data channel, which can also be understood as control information being multiplexed onto a physical uplink data channel and being jointly carried on the frequency domain resource for transmitting the physical uplink data channel.

[0218] In one possible design, the second control information is multiplexed into the data channel containing the second data information. That is, the data channel containing the second data information carries the multiplexed second control information and second data information. In other words, the multiplexed second control information and second data information are carried by the same data channel, and the frequency domain resources used to transmit the data channel belong to the switched frequency domain resources.

[0219] Step 810: The base station sends first information, and the terminal receives the first information accordingly.

[0220] The first information is used to schedule transmission of first uplink information on M frequency domain resources in a first time unit, and transmission of second uplink information on N frequency domain resources in a second time unit. The M frequency domain resources are frequency domain resources before switching, and the N frequency domain resources are frequency domain resources after switching. M and N are positive integers, and the sum of M and N is greater than or equal to 2.

[0221] For details, please refer to the relevant description of step 400 above.

[0222] Step 820: When uplink transmission is switched from the frequency domain resource before switching to the frequency domain resource after switching, the terminal determines the frequency domain resource where the switching time is located.

[0223] In one possible implementation, when the terminal determines that the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second data information and the multiplexed second control information, the terminal determines that the switching time is located in the frequency domain resources before switching.

[0224] In one possible implementation, when the terminal determines that the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second data information and the multiplexed second control information, if the second frequency domain resources are the frequency domain resources with the highest priority in the frequency domain resource set, or the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set, the terminal determines that the location of the switching time is not located on the side where the frequency domain resources with the highest priority are located, that is, the frequency domain resources where the switching time is located are the frequency domain resources before the switching. In other words, the terminal determines that the frequency domain resources where the switching time is located are the frequency domain resources before the switching based on existing protocol rules.

[0225] In one possible implementation, when the terminal determines that the frequency domain resources after switching include a second frequency domain resource, and the second frequency domain resource carries second data information and multiplexed second control information, the terminal regards the second frequency domain resource as the frequency domain resource with the highest priority in the frequency domain resource set, and the terminal determines that the position of the switching time is not on the side where the frequency domain resource with the highest priority is located, that is, the frequency domain resource where the switching time is located is the frequency domain resource before switching.

[0226] Step 830: The base station receives the first uplink information on the frequency domain resources before the switching, and receives the second uplink information on the frequency domain resources after the switching, based on the frequency domain resources at the switching time. Accordingly, the terminal sends the first uplink information on M frequency domain resources in the first time unit, and sends the second uplink information on N frequency domain resources in the second time unit.

[0227] Exemplarily, the base station can determine the frequency domain resources where the switching time is located based on the terminal capability information, and then receive the first uplink information on the frequency domain resources before the switching based on the frequency domain resources where the switching time is located, and receive the second uplink information on the frequency domain resources after the switching.

[0228] Sending the second uplink information on N frequency domain resources can also be understood as: based on the terminal's radio frequency chain capability limitation, sending the second uplink information on some of the N frequency domain resources. The some of the N frequency domain resources are the frequency domain resources that the terminal ultimately determines can perform uplink transmission.

[0229] The embodiment shown in FIG8 can also be combined with the above-mentioned method A and method B, which will not be described in detail here.

[0230] Using the above method, the terminal sends the terminal's capability information to the base station. The terminal's capability information indicates that when the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second data information and the multiplexed second control information, the terminal supports the switching time position located in the frequency domain resources before switching, thereby reducing the impact of the switching time on the uplink transmission and effectively improving the probability of the uplink control information (for example, the second control information) being correctly transmitted.

[0231] It is understood that in order to implement the functions in the above embodiments, the terminal and base station include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in conjunction with the units and method steps of the various examples described in the embodiments disclosed in this application, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application scenario and design constraints of the technical solution.

[0232] Figures 9 and 10 are schematic diagrams of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.

[0233] As shown in Figure 9, a communication device 900 includes a processing unit 910 and a transceiver unit 920. The communication device 900 is used to implement the terminal or base station in the above method embodiment.

[0234] When the communication device 900 is used to implement the functions of the terminal in the method embodiment shown in FIG4 :

[0235] The transceiver unit 920 is used to send and receive information; the processing unit 910 is used to determine the frequency domain resource where the switching time is located when the uplink transmission is switched from the frequency domain resource before the switching to the frequency domain resource after the switching; wherein the frequency domain resource before the switching is M frequency domain resources, and the frequency domain resource after the switching is N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resource is a frequency band or a carrier; wherein the switching time is the time for switching from the frequency domain resource before the switching to the frequency domain resource after the switching; when the first condition is met, the frequency domain resource where the switching time is located is a frequency domain resource that does not have the highest priority in the frequency domain resource set, and the frequency domain resource where the switching time is located is the frequency domain resource before the switching or the frequency domain resource after the switching; the first condition includes at least one of the following: the frequency domain resource before the switching includes the first frequency domain resource, and the first frequency domain resource carries the first control information; or, after the switching The frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the second control information; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the frequency domain resources with the highest priority in the frequency domain resource set are the second frequency domain resources; or, the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set; wherein, the frequency domain resource set includes the frequency domain resources before switching and the frequency domain resources after switching, or the frequency domain resource set includes the frequency domain resources before switching and the frequency domain resources after switching except the third frequency domain resources, the third frequency domain resources are the frequency domain resources included in the frequency domain resources before switching, and the third frequency domain resources are the frequency domain resources included in the frequency domain resources after switching.

[0236] In one possible design, the frequency domain resources contained in the frequency domain resources before switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after switching carry the multiplexed second control information.

[0237] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0238] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0239] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the switched frequency domain resources.

[0240] In one possible design, the processing unit 910 is used to determine the second frequency domain resource from K frequency domain resources, where the second frequency domain resource is the frequency domain resource with the smallest service cell index among the K frequency domain resources, where K is an integer greater than or equal to 2, and K is less than N, and the K frequency domain resources belong to the N frequency domain resources.

[0241] In one possible design, the processing unit 910 is used to determine the K frequency domain resources from the switched frequency domain resources.

[0242] In one possible design, the processing unit 910 is configured to determine the K frequency domain resources from the switched frequency domain resources when the maximum number K of carriers supported by the terminal for CA or the number K of transmission chains supported by the terminal is less than N.

[0243] In one possible design, the K frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0244] In one possible design, the processing unit 910 is used to determine the second frequency domain resource from the switched frequency domain resources, where the second frequency domain resource is the frequency domain resource with the minimum service cell index in the switched frequency domain resources.

[0245] In one possible design, the processing unit 910 is used to determine K-1 frequency domain resources from the frequency domain resources after switching except the second frequency domain resources, where K is an integer greater than or equal to 2 and K is less than N.

[0246] In one possible design, the processing unit 910 is used to determine the K-1 frequency domain resources from the frequency domain resources after the switch except the second frequency domain resources when the maximum number K of carriers supported by the terminal for CA or the number of transmission chains supported by the terminal is less than N.

[0247] In one possible design, the K-1 frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0248] In one possible design, the second control information includes HARQ, or at least one of non-periodic CSI or SR.

[0249] In one possible design, the second frequency domain resources also carry the second data information.

[0250] In one possible design, the first frequency domain resource also carries the first data information.

[0251] When the communication device 900 is used to implement the functions of the terminal in the method embodiment shown in FIG5 :

[0252] The transceiver unit 920 is used to send and receive information; the processing unit 910 is used to determine the frequency domain resource where the switching time is located when the uplink transmission is switched from the frequency domain resource before the switching to the frequency domain resource after the switching; wherein the frequency domain resource before the switching is M frequency domain resources, and the frequency domain resource after the switching is N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resource is a frequency band or a carrier; wherein the switching time is the time from the frequency domain resource before the switching to the frequency domain resource after the switching; the frequency domain resource where the switching time is located is the frequency domain resource before the switching, wherein the frequency domain resource after the switching includes a second frequency domain resource, and the second frequency domain resource carries second control information.

[0253] In one possible design, the frequency domain resources contained in the frequency domain resources before switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after switching carry the multiplexed second control information.

[0254] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0255] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0256] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest service cell index among the switched frequency domain resources.

[0257] In one possible design, the processing unit 910 is used to determine the second frequency domain resource from K frequency domain resources, where the second frequency domain resource is the frequency domain resource with the smallest service cell index among the K frequency domain resources, where K is an integer greater than or equal to 2, and K is less than N, and the K frequency domain resources belong to the N frequency domain resources.

[0258] In one possible design, the processing unit 910 is used to determine the K frequency domain resources from the switched frequency domain resources.

[0259] In one possible design, the processing unit 910 is configured to determine the K frequency domain resources from the switched frequency domain resources when the maximum number K of carriers supported by the terminal for CA or the number K of transmission chains supported by the terminal is less than N.

[0260] In one possible design, the K frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0261] In one possible design, the processing unit 910 is used to determine the second frequency domain resource from the switched frequency domain resources, where the second frequency domain resource is the frequency domain resource with the minimum service cell index in the switched frequency domain resources.

[0262] In one possible design, the processing unit 910 is used to determine K-1 frequency domain resources from the frequency domain resources after switching except the second frequency domain resources, where K is an integer greater than or equal to 2 and K is less than N.

[0263] In one possible design, the processing unit 910 is used to determine the K-1 frequency domain resources from the frequency domain resources after the switch except the second frequency domain resources when the maximum number K of carriers supported by the terminal for CA or the number of transmission chains supported by the terminal is less than N.

[0264] In one possible design, the K-1 frequency domain resources are determined according to the priorities corresponding to the switched frequency domain resources.

[0265] In one possible design, the second frequency domain resources also carry the second data information.

[0266] In one possible design, the frequency domain resources before switching include first frequency domain resources, and the first frequency domain resources carry the first data information and / or the first control information.

[0267] In one possible design, the second control information includes HARQ, or at least one of non-periodic CSI or SR.

[0268] When the communication device 900 is used to implement the functions of the base station in the method embodiment shown in FIG4 :

[0269] The transceiver unit 920 is used to send and receive information. The processing unit 910 executes the sending of the first information through the transceiver unit 920. The first information is used to schedule the transmission of the first uplink information on the frequency domain resources before the switch in the first time unit, and the transmission of the second uplink information on the frequency domain resources after the switch in the second time unit; wherein the frequency domain resources before the switch are M frequency domain resources, and the frequency domain resources after the switch are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; the frequency domain resources based on the switching time are received in the frequency domain resources before the switch. The first uplink information, and receiving the second uplink information on the frequency domain resource after the switch; wherein the switching time is the time for switching from the frequency domain resource before the switch to the frequency domain resource after the switch; when the first condition is met, the frequency domain resource where the switching time is located is the frequency domain resource that does not have the highest priority in the frequency domain resource set, and the frequency domain resource where the switching time is located is the frequency domain resource before the switch or the frequency domain resource after the switch; the first condition includes at least one of the following: the frequency domain resource before the switch includes the first frequency domain resource, and the first frequency domain resource carries the first control information, the first uplink information includes the first control information; or the frequency domain resources after switching do not include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the second uplink information includes the second control information; or the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource, and the second uplink information includes the second control information; or the frequency domain resources after switching include the second frequency domain resources, and the second frequency domain resources carry the second control information, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set, and the second uplink information includes the second control information; wherein the frequency domain resource set includes the frequency domain resources before switching and the frequency domain resources after switching, or the frequency domain resource set includes the frequency domain resources before switching and the frequency domain resources after switching except the third frequency domain resources, the third frequency domain resources are the frequency domain resources included in the frequency domain resources before switching, and the third frequency domain resources are the frequency domain resources included in the frequency domain resources after switching.

[0270] In one possible design, the frequency domain resources contained in the frequency domain resources before the switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after the switching carry the multiplexed second control information.

[0271] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0272] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0273] In one possible design, the second frequency domain resource also carries the second data information, and the second uplink information includes the second data information.

[0274] In one possible design, the first frequency domain resource also carries the first data information, and the first uplink information includes the first data information.

[0275] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest service cell index among the switched frequency domain resources.

[0276] When the communication device 900 is used to implement the functions of the base station in the method embodiment shown in FIG5 :

[0277] The transceiver unit 920 is used to send and receive information. The processing unit 910 executes sending of the first information through the transceiver unit 920. The first information is used to schedule the transmission of the first uplink information on the frequency domain resources before the switch in the first time unit, and the transmission of the second uplink information on the frequency domain resources after the switch in the second time unit; wherein the frequency domain resources before the switch are M frequency domain resources, and the frequency domain resources after the switch are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; based on the frequency domain resources where the switching time is located, the first uplink information is received on the frequency domain resources before the switch, and the second uplink information is received on the frequency domain resources after the switch; wherein the switching time is the time to switch from the frequency domain resources before the switch to the frequency domain resources after the switch; the frequency domain resources where the switching time is located are the frequency domain resources before the switch, wherein the frequency domain resources after the switch include second frequency domain resources, and the second frequency domain resources carry second control information, and the second uplink information includes the second control information.

[0278] In one possible design, the frequency domain resources contained in the frequency domain resources before switching carry the multiplexed first control information, and / or the frequency domain resources contained in the frequency domain resources after switching carry the multiplexed second control information.

[0279] In one possible design, the first control information is multiplexed on the data channel where the first data information is located.

[0280] In one possible design, the second control information is multiplexed on the data channel where the second data information is located.

[0281] In one possible design, the second frequency domain resource also carries the second data information, and the second uplink information includes the second data information.

[0282] In one possible design, the frequency domain resources before switching include first frequency domain resources, the first frequency domain resources carry the first data information and / or the first control information, and the first uplink information includes the first data information and / or the first control information.

[0283] In one possible design, the second frequency domain resource is the frequency domain resource with the smallest serving cell index among the switched frequency domain resources.

[0284] A more detailed description of the processing unit 910 and the transceiver unit 920 can be directly obtained by referring to the relevant description in the above method embodiment, and will not be repeated here.

[0285] As shown in Figure 10, communication device 1000 includes a processor 1010 and an interface circuit 1020. Processor 1010 and interface circuit 1020 are coupled to each other. It will be appreciated that interface circuit 1020 may be a transceiver or an input / output interface. Optionally, communication device 1000 may further include a memory 1030 for storing instructions executed by processor 1010, input data required by processor 1010 to execute instructions, or data generated by processor 1010 after executing instructions.

[0286] When the communication device 1000 is used to implement the method shown in FIG. 4 or 5 , the processor 1010 is used to implement the functions of the processing unit 910 , and the interface circuit 1020 is used to implement the functions of the transceiver unit 920 .

[0287] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0288] The present application provides another example of a device, which includes at least one processor and at least one memory, the at least one processor and the at least one memory being coupled together, the at least one memory being used to store instructions. When the instructions are executed by the at least one processor, the communication device executes the method in the above-described embodiment. For example, as shown in FIG10 , a communication device 1000 includes a processor 1010 and a memory 1030. The processor 1010 and the memory 1030 are coupled together, and the memory 1030 stores instructions. When the instructions stored in the memory 1030 are executed by the processor 1010, the communication device 1000 executes the method executed by the terminal or base station in the above-described embodiment.

[0289] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in the above-mentioned terminal or base station. The processor and storage medium can also exist in the terminal or base station as discrete components.

[0290] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0291] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0292] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0293] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A communication method, characterized in that: include: When uplink transmission is switched from the frequency domain resources before switching to the frequency domain resources after switching, determining the frequency domain resources at the switching time; wherein the frequency domain resources before switching are M frequency domain resources, the frequency domain resources after switching are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; The switching time is the time for switching from the frequency domain resources before the switching to the frequency domain resources after the switching; the frequency domain resources where the switching time is located are the frequency domain resources before the switching, wherein the frequency domain resources after the switching include second frequency domain resources, and the second frequency domain resources carry second control information.

2. The method according to claim 1, wherein The frequency domain resources included in the frequency domain resources before the switching carry the multiplexed first control information, and / or the frequency domain resources included in the frequency domain resources after the switching carry the multiplexed second control information.

3. The method according to claim 1 or 2, wherein: The first control information is multiplexed on the data channel where the first data information is located.

4. The method according to claim 1 or 2, wherein: The second control information is multiplexed on the data channel where the second data information is located.

5. The method according to any one of claims 1 to 4, characterized in that The second frequency domain resource is a frequency domain resource having a minimum serving cell index among the switched frequency domain resources.

6. The method according to any one of claims 1 to 4, characterized in that Also includes: The second frequency domain resource is determined from K frequency domain resources, where the second frequency domain resource is the frequency domain resource with the smallest service cell index among the K frequency domain resources, where K is an integer greater than or equal to 2, and K is less than N, and the K frequency domain resources belong to the N frequency domain resources.

7. The method according to claim 6, wherein Also includes: The K frequency domain resources are determined from the switched frequency domain resources.

8. The method according to claim 7, wherein Determining the K frequency domain resources from the switched frequency domain resources includes: When the maximum number K of carriers supported by the terminal for carrier aggregation CA or the number K of transmission chains supported by the terminal is less than N, the K frequency domain resources are determined from the switched frequency domain resources.

9. The method according to any one of claims 6 to 8, wherein: The K frequency domain resources are determined according to the priorities respectively corresponding to the switched frequency domain resources.

10. The method according to any one of claims 1 to 4, characterized in that Also includes: The second frequency domain resource is determined from the switched frequency domain resources, where the second frequency domain resource is a frequency domain resource with a minimum serving cell index in the switched frequency domain resources.

11. The method according to claim 10, wherein Also includes: Determine K-1 frequency domain resources from the frequency domain resources after the switch except the second frequency domain resources, where K is an integer greater than or equal to 2, and K is less than N.

12. The method according to claim 11, wherein Determining K-1 frequency domain resources from the frequency domain resources after the switching, excluding the second frequency domain resources, includes: When a maximum number K of carriers supported by the terminal for CA or a number of transmission chains supported by the terminal is less than N, the K-1 frequency domain resources are determined from the frequency domain resources after the switch except the second frequency domain resources.

13. The method according to any one of claims 1 to 12, wherein: The second control information includes at least one of a hybrid automatic repeat request HARQ, or a non-periodic channel state information CSI or a scheduling request SR.

14. The method according to any one of claims 4 to 13, wherein: The second frequency domain resources also carry the second data information.

15. The method according to any one of claims 3 to 14, wherein: The frequency domain resources before switching include first frequency domain resources, and the first frequency domain resources carry the first data information and / or the first control information.

16. A communication method, characterized in that: include: When uplink transmission is switched from the frequency domain resources before switching to the frequency domain resources after switching, determining the frequency domain resources at the switching time; wherein the frequency domain resources before switching are M frequency domain resources, the frequency domain resources after switching are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; The switching time is the time for switching from the frequency domain resource before the switching to the frequency domain resource after the switching; when the first condition is met, the frequency domain resource where the switching time is located is a frequency domain resource that does not have the highest priority in the frequency domain resource set, and the frequency domain resource where the switching time is located is the frequency domain resource before the switching or the frequency domain resource after the switching; The first condition includes at least one of the following: The frequency domain resources before switching include first frequency domain resources, and the first frequency domain resources carry first control information; Alternatively, the switched frequency domain resources do not include the second frequency domain resources, and the second frequency domain resources carry the second control information; Alternatively, the switched frequency domain resources include second frequency domain resources, and the second frequency domain resources carry second control information, and the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource; Alternatively, the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second control information, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set; In which, the frequency domain resource set includes the frequency domain resources before the switching and the frequency domain resources after the switching, or the frequency domain resource set includes the frequency domain resources before the switching and the frequency domain resources after the switching except the third frequency domain resources, the third frequency domain resources are the frequency domain resources included in the frequency domain resources before the switching, and the third frequency domain resources are the frequency domain resources included in the frequency domain resources after the switching.

17. The method according to claim 16, wherein The frequency domain resources included in the frequency domain resources before the switching carry the multiplexed first control information, and / or the frequency domain resources included in the frequency domain resources after the switching carry the multiplexed second control information.

18. The method according to claim 16 or 17, wherein: The first control information is multiplexed on the data channel where the first data information is located.

19. The method according to claim 16 or 17, wherein: The second control information is multiplexed on the data channel where the second data information is located.

20. The method according to any one of claims 16 to 19, wherein: The second frequency domain resource is a frequency domain resource having a minimum serving cell index among the switched frequency domain resources.

21. The method according to any one of claims 16 to 20, wherein: The second control information includes at least one of HARQ, aperiodic CSI, and SR.

22. The method according to any one of claims 19 to 21, wherein: The second frequency domain resources also carry the second data information.

23. The method according to any one of claims 18 to 22, wherein: The first frequency domain resource also carries the first data information.

24. A communication method, characterized in that: include: Sending first information, where the first information is used to schedule transmission of first uplink information on frequency domain resources before switching in a first time unit, and transmission of second uplink information on frequency domain resources after switching in a second time unit; wherein the frequency domain resources before switching are M frequency domain resources, the frequency domain resources after switching are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; receiving the first uplink information on the frequency domain resource before the switching based on the frequency domain resource at the switching time, and receiving the second uplink information on the frequency domain resource after the switching; The switching time is the time for switching from the frequency domain resource before the switching to the frequency domain resource after the switching; when the first condition is met, the frequency domain resource where the switching time is located is a frequency domain resource that does not have the highest priority in the frequency domain resource set, and the frequency domain resource where the switching time is located is the frequency domain resource before the switching or the frequency domain resource after the switching; The first condition includes at least one of the following: The frequency domain resources before the switching include first frequency domain resources, and the first frequency domain resources carry first control information, and the first uplink information includes the first control information; Alternatively, the switched frequency domain resources do not include the second frequency domain resources, and the second frequency domain resources carry second control information, and the second uplink information includes the second control information; Alternatively, the switched frequency domain resources include second frequency domain resources, and the second frequency domain resources carry second control information, and the frequency domain resource with the highest priority in the frequency domain resource set is the second frequency domain resource, and the second uplink information includes the second control information; Alternatively, the frequency domain resources after switching include second frequency domain resources, and the second frequency domain resources carry second control information, and the frequency domain resources after switching include the frequency domain resources with the highest priority in the frequency domain resource set, and the second uplink information includes the second control information; In which, the frequency domain resource set includes the frequency domain resources before the switching and the frequency domain resources after the switching, or the frequency domain resource set includes the frequency domain resources before the switching and the frequency domain resources after the switching except the third frequency domain resources, the third frequency domain resources are the frequency domain resources included in the frequency domain resources before the switching, and the third frequency domain resources are the frequency domain resources included in the frequency domain resources after the switching.

25. A communication method, characterized in that: include: Sending first information, where the first information is used to schedule transmission of first uplink information on frequency domain resources before switching in a first time unit, and transmission of second uplink information on frequency domain resources after switching in a second time unit; wherein the frequency domain resources before switching are M frequency domain resources, the frequency domain resources after switching are N frequency domain resources, M and N are positive integers and the sum of M and N is greater than or equal to 2, and the frequency domain resources are frequency bands or carriers; receiving the first uplink information on the frequency domain resource before the switching based on the frequency domain resource at the switching time, and receiving the second uplink information on the frequency domain resource after the switching; The switching time is the time for switching from the frequency domain resources before the switching to the frequency domain resources after the switching; the frequency domain resources where the switching time is located are the frequency domain resources before the switching, wherein the frequency domain resources after the switching include second frequency domain resources, and the second frequency domain resources carry second control information, and the second uplink information includes the second control information.

26. 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 25.

27. A communication device, characterized in that: The communication device includes at least one processor; the at least one processor is configured to execute the method according to any one of claims 1 to 25.

28. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a program, and when the program is run on a device, the device is caused to perform the method according to any one of claims 1 to 25.

29. A computer program product, characterized in that The computer program product includes a program or instructions, and when the program or instructions are executed by a device, the device is caused to perform the method according to any one of claims 1 to 25.

Images