Method, system and equipment for determining uplink transmission frequency band after transmitter switching

Abstract

The invention relates to a method, a system and equipment for determining an uplink transmission frequency band after a transmitter is switched, and relates to the technical field of wireless communication. The method for determining the uplink transmission frequency band after the transmitter is switched comprises the following steps: when the next uplink transmission of the terminal needs the transmitter of the terminal to be switched to a target frequency band so as to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, switching the transmitter of the terminal to the target frequency band, and the terminal neglects the indication configured by the base station that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier of the target frequency band, and still regards as performing uplink transmission of one antenna port on at least one carrier of the target frequency band to determine the uplink transmission frequency band after the transmitter is switched. Therefore, the number of uplink transmission ports supported by the target frequency band can be matched to determine the frequency band capable of performing uplink transmission after the transmitter of the terminal is switched, and the number of switching times of the transmitter of the terminal can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a method, system and device for determining an uplink transmission frequency band after transmitter switching. Background Art

[0002] Super uplink, i.e., terminal uplink transmitter switching (UL Tx switching) technology, makes full use of the uplink resources of different carriers, improves the uplink capacity and uplink coverage of the New Radio (NR), and reduces latency.

[0003] The multi-carrier uplink transmission of Release 16 (Rel-16) and Release 17 (Rel-17) of the 3rd Generation Partnership Project (3GPP) standard has restrictions on the transmitter switching mechanism of terminals supporting two sets of transmitters, that is, the dynamic switching of the terminal transmitter can only be performed between the two uplink frequency bands configured by the Radio Resource Control (RRC) signaling.

[0004] In order to further improve the uplink data rate, spectrum utilization and uplink capacity, version 18 (Rel-18) of the 3GPP standard further enhances the super uplink. For terminals that support up to two sets of transmitters, it supports dynamic switching of two sets of transmitters between three or four uplink frequency bands. Summary of the invention

[0005] After analysis, the inventor found that if the next uplink transmission of the terminal requires the frequency band of the terminal's transmitter to be switched for uplink transmission, the base station and the terminal need to determine the frequency band that can be used for uplink transmission after the transmitter is switched, so as to determine whether the subsequent uplink transmission requires the terminal's transmitter to switch the frequency band for uplink transmission again. In the case where the next uplink transmission of the terminal requires the terminal's transmitter to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, the frequency band that can be used for uplink transmission after one set of the terminal's transmitters is switched is the target frequency band, while the frequency band that can be used for uplink transmission after another set of transmitters is switched has different possibilities and needs to be determined by the base station configuration. When the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the base station can configure the transmitter state parameter for uplink transmitter switching in dual uplink mode to be a first parameter value, which is used to instruct the terminal to regard the at least one carrier of the target frequency band as performing uplink transmission of two antenna ports to determine the frequency band in which uplink transmission can be performed after the transmitter is switched (i.e., instruct the terminal to switch both sets of transmitters to the target frequency band). However, if the terminal does not support uplink transmission of two antenna ports in the target frequency band (i.e., the target frequency band does not support simultaneous transmission of the two sets of transmitters of the terminal), the frequency band in which the terminal regards the at least one carrier of the target frequency band as performing uplink transmission of two antenna ports to determine the frequency band in which uplink transmission can be performed after the transmitter is switched does not match the number of ports supported by the target frequency band for uplink transmission. Even if the terminal switches both transmitters to the target frequency band, the two transmitters do not support simultaneous transmission in the target frequency band, and if subsequent uplink transmission is in other frequency bands, it may increase the number of required terminal transmitter switching times.

[0006] A technical problem to be solved by an embodiment of the present invention is: when the next uplink transmission of the terminal requires the transmitter of the terminal to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports in the target frequency band, the uplink transmission frequency band after the terminal transmitter is switched is determined according to the base station configuration, resulting in a mismatch between the frequency band that can be used for uplink transmission after the transmitter is switched and the number of uplink transmission ports supported by the target frequency band, which may cause the problem of an increase in the number of terminal transmitter switching times required for subsequent uplink transmissions.

[0007] According to a first aspect of some embodiments of the present invention, there is provided a method for determining an uplink transmission frequency band after transmitter switching, which is applied to a terminal and includes: when the next uplink transmission of the terminal requires the transmitter of the terminal to switch to a target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the terminal ignores the indication configured by the base station that the terminal regards uplink transmission of two antenna ports on at least one carrier of the target frequency band, and still regards uplink transmission of one antenna port on at least one carrier of the target frequency band to determine the uplink transmission frequency band after the transmitter switching.

[0008] In some embodiments, the terminal ignores the indication configured by the base station that the terminal considers at least one carrier of the target frequency band to perform uplink transmission of two antenna ports, and still considers at least one carrier of the target frequency band to perform uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter is switched, including:

[0009] The terminal ignores the first parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the base station, and determines the uplink transmission frequency band after the transmitter switching based on the second parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode, wherein the first parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of two antenna ports to determine the uplink transmission frequency band after the transmitter switching, and the second parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter switching; or,

[0010] The terminal ignores the transmitter state parameters of the uplink transmitter switching in the dual uplink mode configured by the base station to determine the uplink transmission frequency band after the transmitter switching.

[0011] In some embodiments, the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the transmitter state parameters for switching the uplink transmitter in the dual uplink mode are configured by the base station as the first parameter value.

[0012] In some embodiments, the terminal ignores the indication configured by the base station that the terminal considers at least one carrier of the target frequency band to perform uplink transmission of two antenna ports, and still considers at least one carrier of the target frequency band to perform uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter is switched, including:

[0013] The terminal determines the uplink transmission frequency band after the transmitter is switched by considering that one antenna port is performing uplink transmission in the target frequency band and one antenna port is performing uplink transmission in the frequency band associated with the target frequency band; wherein:

[0014] Before the switching, the terminal performs uplink transmission of two antenna ports on at least one carrier of the first frequency band; after the switching, the terminal does not perform uplink transmission on any carrier of the first frequency band, and performs uplink transmission of one antenna port on at least one carrier of the target frequency band; when the target frequency band and the first frequency band are different frequency bands, the frequency band associated with the target frequency band is the first frequency band; and / or,

[0015] Before the switching, the terminal performs uplink transmission on one antenna port in at least one carrier of at least one frequency band in the first frequency band and the second frequency band, and the terminal supports uplink transmission on one antenna port in both the first frequency band and the second frequency band; after the switching, the terminal does not perform uplink transmission in the first frequency band and the second frequency band, and performs uplink transmission on one antenna port in at least one carrier of the target frequency band; when the target frequency band and the first frequency band and the second frequency band are different frequency bands, the frequency band associated with the target frequency band is the associated frequency band configured by the base station.

[0016] In some embodiments, the method further comprises:

[0017] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the terminal reports a first switching interval corresponding to the first switching mode,

[0018] Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band. The terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band.

[0019] In some embodiments, the method further comprises:

[0020] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair,

[0021] Among them, the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0022] In some embodiments, the method further comprises:

[0023] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair, the terminal reports a first switching interval corresponding to the first switching mode and a second switching interval corresponding to the second switching mode,

[0024] Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band. The terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band. Both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0025] In some embodiments, the method further comprises:

[0026] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band of the frequency band pair:

[0027] When the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the terminal uses the second switching interval to perform transmitter switching between frequency bands of the frequency band pair; and / or,

[0028] When the base station does not configure the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the terminal uses the first switching interval to perform transmitter switching between the frequency bands of the frequency band pair.

[0029] In some embodiments, the method further comprises:

[0030] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the terminal reports a first switching interval corresponding to the first switching mode and a second switching interval corresponding to the second switching mode,

[0031] Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band. The terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band. Both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0032] In some embodiments, the method further comprises:

[0033] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, if the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair,

[0034] When the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the terminal uses the second switching interval to perform transmitter switching between frequency bands of the frequency band pair; and / or,

[0035] When the base station does not configure the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the terminal uses the first switching interval to perform transmitter switching between the frequency bands of the frequency band pair.

[0036] According to a second aspect of some embodiments of the present invention, a method for determining an uplink transmission frequency band after transmitter switching is provided, which is applied to a base station and includes:

[0037] When the next uplink transmission of the terminal requires the terminal's transmitter to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the base station ignores the indication that the terminal is configured to perform uplink transmission of two antenna ports on at least one carrier of the target frequency band, and determines the uplink transmission frequency band of the terminal after the transmitter is switched based on the fact that the terminal is still regarded as performing uplink transmission of one antenna port on at least one carrier of the target frequency band.

[0038] In some embodiments, the base station ignores the indication that the terminal is configured to perform uplink transmission of two antenna ports on at least one carrier of the target frequency band, and determines the uplink transmission frequency band of the terminal after the transmitter is switched according to the terminal still being regarded as performing uplink transmission of one antenna port on at least one carrier of the target frequency band, including:

[0039] The base station ignores the first parameter value of the transmitter state parameter of the uplink transmitter switching in the configured dual uplink mode, and determines the uplink transmission frequency band of the terminal after the transmitter is switched based on the second parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode, wherein the first parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of two antenna ports to determine the uplink transmission frequency band after the transmitter is switched, and the second parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter is switched; or,

[0040] The base station determines the uplink transmission frequency band of the terminal after the transmitter is switched according to the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the terminal ignoring the configuration.

[0041] In some embodiments, the method further comprises:

[0042] When the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the base station configures the transmitter state parameters for switching the uplink transmitter in the dual uplink mode to the first parameter value.

[0043] In some embodiments, the method further comprises:

[0044] The base station configures the switching mode for each frequency band pair of more than two uplink frequency bands configured for the terminal; or,

[0045] The base station configures a unified switching mode for more than two uplink frequency bands configured for the terminal;

[0046] Among them, the switching mode includes a first switching mode and a second switching mode. The first switching mode is a mode of switching between the third frequency band and the fourth frequency band. The terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band. Both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0047] In some embodiments, the method further comprises:

[0048] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the base station receives a first switching interval corresponding to a first switching mode reported by the terminal,

[0049] Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band. The terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band.

[0050] In some embodiments, the method further comprises:

[0051] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair,

[0052] Among them, the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0053] In some embodiments, the method further comprises:

[0054] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair, the base station receives a first switching interval corresponding to a first switching mode and a second switching interval corresponding to a second switching mode reported by the terminal,

[0055] Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band. The terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band. Both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0056] In some embodiments, the method further comprises:

[0057] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band of the frequency band pair,

[0058] When the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the second switching interval to perform transmitter switching between frequency bands of the frequency band pair; and / or,

[0059] When the base station does not configure the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the first switching interval to perform transmitter switching between frequency bands of the frequency band pair.

[0060] In some embodiments, the method further comprises:

[0061] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the base station receives a first switching interval corresponding to the first switching mode and a second switching interval corresponding to the second switching mode reported by the terminal,

[0062] Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band. The terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band. Both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0063] In some embodiments, the method further comprises:

[0064] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, if the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair,

[0065] When the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the second switching interval to perform transmitter switching between frequency bands of the frequency band pair; and / or,

[0066] When the base station does not configure the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the first switching interval to perform transmitter switching between frequency bands of the frequency band pair.

[0067] According to a third aspect of some embodiments of the present invention, a terminal is provided, comprising: a determination module, configured to, when the next uplink transmission of the terminal requires the terminal's transmitter to switch to a target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the terminal ignores the indication configured by the base station that the terminal regards uplink transmission of two antenna ports on at least one carrier of the target frequency band, and still regards uplink transmission of one antenna port on at least one carrier of the target frequency band to determine the uplink transmission frequency band after the transmitter is switched.

[0068] According to a fourth aspect of some embodiments of the present invention, a terminal is provided, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute any of the aforementioned methods for determining an uplink transmission frequency band after transmitter switching based on instructions stored in the memory.

[0069] According to a fifth aspect of some embodiments of the present invention, a base station is provided, comprising: a determination module, configured to, when the next uplink transmission of the terminal requires the terminal's transmitter to switch to a target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the base station ignores the indication that the terminal is configured to perform uplink transmission of two antenna ports on at least one carrier of the target frequency band, and determines the uplink transmission frequency band of the terminal after the transmitter is switched based on the fact that the terminal is still regarded as performing uplink transmission of one antenna port on at least one carrier of the target frequency band.

[0070] According to a sixth aspect of some embodiments of the present invention, a base station is provided, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute any one of the aforementioned methods for determining an uplink transmission frequency band after transmitter switching based on instructions stored in the memory.

[0071] According to a seventh aspect of some embodiments of the present invention, there is provided a system for determining an uplink transmission frequency band after transmitter switching, comprising: any one of the aforementioned terminals; and any one of the aforementioned base stations.

[0072] According to an eighth aspect of some embodiments of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the aforementioned methods for determining an uplink transmission frequency band after transmitter switching.

[0073] Some embodiments of the above invention have the following advantages or beneficial effects. Through the embodiments of the present invention, when the base station instructs the terminal to switch both sets of transmitters to the target frequency band and the terminal does not support uplink transmission of two ports in the target frequency band, the terminal can ignore the instructions configured by the base station and only switch one set of transmitters to the target frequency band. Thus, the instructions of the base station and the ability of the terminal to perform uplink transmission in the target frequency band can be integrated, so that the terminal can better support the application scenarios of configuring multiple frequency bands and switching transmitters between multiple frequency bands, and can match the number of ports for uplink transmission supported by the target frequency band to determine the frequency band in which the terminal can perform uplink transmission after the transmitter is switched, which is conducive to reducing the number of terminal transmitter switching times required for subsequent uplink transmission in other frequency bands.

[0074] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0076] Figure 1A A schematic diagram of terminal transmitter switching of Rel-16 super uplink technology is shown.

[0077] Figure 1B A schematic diagram of terminal transmitter switching of Rel-17 super uplink technology is shown.

[0078] Figure 1C A schematic diagram of terminal transmitter switching of Rel-18 super uplink technology is shown.

[0079] Figure 2 A schematic flow chart of a method for determining an uplink transmission frequency band after transmitter switching according to some embodiments of the present invention is shown.

[0080] Figure 3 A schematic flow chart of a terminal transmitter switching method according to some embodiments of the present invention under a strategy is shown.

[0081] Figure 4 A schematic flow chart of a terminal transmitter switching method according to some other embodiments of the present invention under another strategy is shown.

[0082] Figure 5 A schematic flow chart of a terminal transmitter switching method according to some further embodiments of the present invention under yet another strategy is shown.

[0083] Figure 6 A schematic diagram of the structure of a terminal according to some embodiments of the present invention is shown.

[0084] Figure 7 A schematic structural diagram of a base station according to some embodiments of the present invention is shown.

[0085] Figure 8 A schematic structural diagram of a system for determining an uplink transmission frequency band after transmitter switching according to some embodiments of the present invention is shown.

[0086] Fig. 9 A schematic structural diagram of an electronic device according to some embodiments of the present invention is shown.

[0087] Fig.10 The schematic diagrams of structures of electronic devices according to other embodiments of the present invention are shown. DETAILED DESCRIPTION

[0088] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0089] The relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0090] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0091] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0092] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0093] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0094] Figure 1A FIG. 4 shows a schematic diagram of terminal transmitter switching for Rel-16 super uplink technology. Figure 1A As shown, the terminal supports two sets of transmitters, transmitter 1 and transmitter 2 both perform uplink transmission on carrier 2, or transmitter 1 performs uplink transmission on carrier 2 and transmitter 2 performs uplink transmission on carrier 1.

[0095] Figure 1B FIG. 1 shows a schematic diagram of terminal transmitter switching for Rel-17 super uplink technology. Figure 1B As shown, both transmitter 1 and transmitter 2 can dynamically switch between frequency band 1 and frequency band 2 and perform uplink transmission.

[0096] Figure 1C FIG. 4 shows a schematic diagram of terminal transmitter switching for Rel-18 super uplink technology. Figure 1C As shown, both transmitter 1 and transmitter 2 can dynamically switch and perform uplink transmission on frequency bands 1 to 4. Among the three or four uplink frequency bands that the terminal transmitter can dynamically switch, based on the terminal capability, uplink transmission of two ports may not be supported in some or all uplink frequency bands, that is, two sets of transmitters may not be supported to perform uplink transmission at the same time.

[0097] For frequency bands that do not support uplink transmission of two ports, under the switching options of switched UL or dual UL, based on the current conclusions, it is still assumed that two sets of transmitters can be switched to the switching situation of this frequency band, so as to determine whether the terminal transmitter needs to be switched for the current uplink transmission and the next uplink transmission.

[0098] In the two uplink frequency bands that the terminal transmitter can dynamically switch, if one frequency band supports two sets of transmitters for uplink transmission at the same time, and the other frequency band only supports one set of transmitters for uplink transmission, the switching mode of the transmitter between the two frequency bands is 1Tx-2Tx switching, such as the terminal transmitter switching mode supported by Rel-16. If both frequency bands support two sets of transmitters for uplink transmission at the same time, the switching mode of the transmitter between the two frequency bands is 2Tx-2Tx switching, such as the terminal transmitter switching mode newly introduced in Rel-17.

[0099] For terminals that support transmitter switching in different frequency bands, the supported uplink transmitter switching options can be reported to the base station through the terminal capability information element. The option "Switch uplink" means that the terminal only supports uplink transmission on a carrier of one frequency band at the same time, and the option "Dual uplink" means that the terminal supports uplink transmission on carriers of different frequency bands at the same time.

[0100] The base station can also configure the uplinkTxSwitching-DualUL-TxState (transmitter state parameter for uplink transmitter switching in dual uplink mode) parameter to the terminal. The value of this parameter can be configured as oneT or twoT to solve the terminal transmitter state ambiguity problem in the following situations under the dual uplink option 2Tx-2Tx switching.

[0101] Case 1: Both transmitters of the current terminal are in band A, and the next uplink transmission is in band B with 1 port uplink transmission. If the above parameter indicates twoT, both transmitters of the terminal are switched to band B; if the above parameter indicates oneT, one transmitter of the terminal is switched to band B, and the other transmitter remains in band A.

[0102] Case 2: The two transmitters of the current terminal are in band A and band B respectively, and the next uplink transmission has a port uplink transmission in band C. If the above parameter indicates twoT, both transmitters of the terminal are switched to band C. The base station also configures an associated band for each band in the band combination that the terminal transmitter can dynamically switch. If the above parameter indicates oneT, one transmitter of the terminal is switched to band C, and the other transmitter is switched to the band associated with band C.

[0103] However, after analysis, the inventor found that if the next uplink transmission of the terminal requires the frequency band of the terminal's transmitter to be switched for uplink transmission, the base station and the terminal need to determine the frequency band that can be used for uplink transmission after the transmitter is switched, so as to determine whether the subsequent uplink transmission requires the terminal's transmitter to switch the frequency band for uplink transmission again. In the case where the next uplink transmission of the terminal requires the terminal's transmitter to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, the frequency band that can be used for uplink transmission after one set of the terminal's transmitters is switched is the target frequency band, while the frequency band that can be used for uplink transmission after another set of transmitters is switched has different possibilities and needs to be determined by the base station configuration. When the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the base station can configure the transmitter state parameter for uplink transmitter switching in dual uplink mode to be a first parameter value, which is used to instruct the terminal to regard the at least one carrier of the target frequency band as performing uplink transmission of two antenna ports to determine the frequency band in which uplink transmission can be performed after the transmitter is switched (i.e., instruct the terminal to switch both sets of transmitters to the target frequency band). However, if the terminal does not support uplink transmission of two antenna ports in the target frequency band (i.e., the target frequency band does not support simultaneous transmission of the two sets of transmitters of the terminal), the frequency band in which the terminal regards the at least one carrier of the target frequency band as performing uplink transmission of two antenna ports to determine the frequency band in which uplink transmission can be performed after the transmitter is switched does not match the number of ports supported by the target frequency band for uplink transmission. Even if the terminal switches both transmitters to the target frequency band, the two transmitters do not support simultaneous transmission in the target frequency band, and if subsequent uplink transmission is in other frequency bands, it may increase the number of required terminal transmitter switching times.

[0104] The present invention provides a method for determining the uplink transmission frequency band after transmitter switching, which can solve the problem that the uplink transmission frequency band after terminal transmitter switching is determined according to base station configuration, resulting in a mismatch between the frequency band that can be used for uplink transmission after transmitter switching and the number of uplink transmission ports supported by the target frequency band, which may cause an increase in the number of terminal transmitter switching times required for subsequent uplink transmission.

[0105] It should be noted that in the following embodiments of the present invention, the base station configures more than two uplink frequency bands for the terminal. In the following embodiments of the present invention, the terminal may not support uplink transmission of two ports in one frequency band, or may not support uplink transmission of two sets of transmitters at the same time. The terminal may support uplink transmission of two ports in one frequency band, or may support uplink transmission of two sets of transmitters at the same time. The terminal may only support uplink transmission of one port in one frequency band, or may only support uplink transmission of one set of transmitters.

[0106] Reference below Figure 2 An embodiment of a method for determining an uplink transmission frequency band after transmitter switching according to the present invention is described.

[0107] Figure 2 A flow chart of a method for determining an uplink transmission frequency band after transmitter switching according to some embodiments of the present invention is shown. In this embodiment, the terminal does not support uplink transmission of two antenna ports in the target frequency band. Figure 2 As shown, the method for determining the uplink transmission frequency band after the transmitter is switched in this embodiment includes step S202. The method for determining the uplink transmission frequency band after the transmitter is switched is to determine the frequency band in which the terminal transmitter can perform uplink transmission after switching, and whether the terminal transmitter performs uplink transmission in the determined uplink transmission frequency band is also determined according to the uplink scheduling of the base station.

[0108] In step S202, when the next uplink transmission of the terminal requires the terminal's transmitter to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, the terminal ignores the indication configured by the base station that the terminal regards at least one carrier of the target frequency band as performing uplink transmission of two antenna ports, and still regards at least one carrier of the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter is switched.

[0109] Thus, the terminal switches one set of transmitters to the target frequency band, and performs uplink transmission of one antenna port on at least one carrier in the target frequency band. For example, after the two sets of transmitters of the terminal perform frequency band switching for uplink transmission, the frequency band for uplink transmission of one set of transmitters is the target frequency band, and the frequency band for uplink transmission of the other set of transmitters is the frequency band associated with the target frequency band. The next uplink transmission is not performed in the frequency band associated with the target frequency band, and whether to perform subsequent uplink transmission needs to be determined according to the subsequent uplink scheduling of the base station.

[0110] When the base station configures more than two uplink frequency bands for the terminal, every two frequency bands of the uplink frequency bands constitute a frequency band pair.

[0111] The base station can uniformly configure multiple frequency band pairs, for example, configure all uplink frequency band pairs configured by the base station for the terminal (that is, all frequency band pairs that can be composed of all uplink frequency bands configured by the base station for the terminal), or configure multiple uplink frequency band pairs configured by the base station for the terminal (that is, all frequency band pairs that can be composed of multiple uplink frequency bands configured by the base station for the terminal). At this time, in different frequency band pairs, the terminal has different support for whether to support uplink transmission of two antenna ports in each frequency band. The unified configuration performed by the base station cannot take into account the port conditions of uplink transmission supported by all frequency bands, and may be configured according to the conditions of most frequency bands. When the preset conditions are met, the base station instructs the terminal in the configuration to regard uplink transmission of two antenna ports as being performed on at least one carrier in the target frequency band to determine the uplink transmission frequency band after the transmitter is switched.

[0112] For example, when the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the transmitter state parameters for switching the uplink transmitter in the dual uplink mode are configured by the base station to the first parameter value, i.e., twoT.

[0113] In some embodiments, the terminal ignores the first parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the base station, and determines the uplink transmission frequency band after the transmitter switching based on the second parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode. The first parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of two antenna ports to determine the uplink transmission frequency band after the transmitter switching, for example, twoT, which indicates that the terminal switches both sets of transmitters to the target frequency band. The second parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter switching, for example, oneT, which indicates that the terminal switches both sets of transmitters to the target frequency band. Thus, when the configuration of the base station does not match the actual situation of the terminal, the default second parameter value is used to replace the first parameter value in the transmitter state parameter of the uplink transmitter switching in the dual uplink mode.

[0114] In some embodiments, the terminal may also ignore the transmitter state parameters of the uplink transmitter switching in the dual uplink mode configured by the base station to determine the uplink transmission frequency band after the transmitter switching. Thus, the terminal may ignore the configuration of the base station and directly switch according to the port conditions of the uplink transmission supported by the target frequency band.

[0115] In some embodiments, the terminal determines the uplink transmission frequency band after the transmitter is switched by treating one antenna port as performing uplink transmission in the target frequency band and one antenna port as performing uplink transmission in the frequency band associated with the target frequency band, that is, the terminal switches one set of transmitters to the target frequency band and switches another set of transmitters to the frequency band associated with the target frequency band. This method is applicable to two scenarios.

[0116] In the first scenario, before switching, the terminal performs uplink transmission on two antenna ports on at least one carrier in the first frequency band; after switching, the terminal does not perform uplink transmission on any carrier in the first frequency band, and performs uplink transmission on one antenna port on at least one carrier in the target frequency band; when the target frequency band and the first frequency band are different frequency bands, the frequency band associated with the target frequency band is the first frequency band.

[0117] In the second scenario, before switching, the terminal performs uplink transmission of one antenna port on at least one carrier of at least one frequency band in the first frequency band and the second frequency band, and the terminal supports uplink transmission of one antenna port in both the first frequency band and the second frequency band; after switching, the terminal does not perform uplink transmission in the first frequency band and the second frequency band, and performs uplink transmission of one antenna port on at least one carrier in the target frequency band; when the target frequency band and the first frequency band and the second frequency band are different frequency bands, the frequency band associated with the target frequency band is the associated frequency band configured by the base station.

[0118] Through the above embodiment, the terminal can ignore the instructions configured by the base station, switch only one set of transmitters to the target frequency band, and switch the other set of transmitters to the frequency band associated with the target frequency band when the base station instructs that both sets of transmitters are switched to the target frequency band, and the terminal does not support uplink transmission of two ports in the target frequency band. Thus, the instructions of the base station and the ability of the terminal to perform uplink transmission in the target frequency band can be integrated, so that the terminal can better support the application scenarios of configuring multiple frequency bands and switching transmitters between multiple frequency bands, and can match the number of ports for uplink transmission supported by the target frequency band to determine the frequency band in which the terminal can perform uplink transmission after the transmitter is switched, which is conducive to reducing the number of terminal transmitter switching times required for subsequent uplink transmission in other frequency bands. For example, when the subsequent uplink transmission needs to be performed in the frequency band associated with the target frequency band, the terminal does not need to switch the transmitter again.

[0119] In some embodiments, the base station may also determine the frequency band in which the terminal's transmitter can perform uplink transmission after switching according to a similar strategy.

[0120] For example, when the next uplink transmission of the terminal requires the terminal's transmitter to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the base station ignores the indication that the terminal is configured to perform uplink transmission of two antenna ports on at least one carrier of the target frequency band, and determines the uplink transmission frequency band of the terminal's transmitter after switching based on the fact that the terminal is still regarded as performing uplink transmission of one antenna port on at least one carrier of the target frequency band. Thus, in the application scenario where the terminal supports configuring multiple frequency bands and switching between multiple frequency bands, the base station can more accurately determine the frequency band in which the terminal can perform uplink transmission after the transmitter is switched.

[0121] In a scenario where two sets of transmitters of a terminal are dynamically switched between three or four uplink frequency bands, for the switching of transmitters between one of the frequency band pairs, if there is a frequency band in the frequency band pair that does not support simultaneous uplink transmission of two sets of transmitters, but it is assumed that there is a switching situation where both sets of transmitters are switched to this frequency band, then for the switching of transmitters between the frequency band pairs, it is necessary to determine which switching mode corresponds to the switching interval time length. For example, whether to use the switching interval time length corresponding to the 1Tx-2Tx switching mode, or the switching interval time length corresponding to the 2Tx-2Tx switching mode. The embodiments of the present invention can further solve the problem of how to determine the switching interval of the terminal transmitter.

[0122] The embodiments of the present invention exemplarily provide several reporting strategies for switching intervals, respectively referring to Figure 3 , Figure 4 and Figure 5 The embodiments in .

[0123] Figure 3 FIG. 1 is a flow chart showing a method for switching a terminal transmitter according to some embodiments of the present invention under a strategy. Figure 3 As shown, the reporting strategy of this embodiment includes step S302.

[0124] In step S302, for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the terminal reports the first switching interval corresponding to the first switching mode.

[0125] In an embodiment of the present invention, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal supports uplink transmission of only one antenna port in the fourth frequency band. The first switching mode is, for example, a 1Tx-2Tx switching mode. The first switching mode in the following text also has the same meaning and will not be repeated.

[0126] In the method of this embodiment, when the terminal does not support using two sets of transmitters to simultaneously perform uplink transmission on any frequency band in the frequency band pair, the terminal only reports one switching interval and uses the switching interval corresponding to the first switching mode. Thus, the base station can be informed of the switching interval used by the terminal. This method is compatible with the terminal implementation principle of 1Tx-2Tx of the previous protocol version, reducing the additional requirements for terminal implementation.

[0127] Furthermore, if neither of the two frequency bands in the frequency band pair supports uplink transmission of two antenna ports, there is no need to introduce a 1Tx-1Tx switching mode. By reusing the switching interval of the existing switching mode, the signaling design and interaction complexity can be simplified without increasing additional requirements for terminal implementation.

[0128] The terminal in step S302 may also perform the switching step in step S304.

[0129] In step S304, for any frequency band pair among the uplink frequency bands greater than 2 configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands in the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than 2, the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair.

[0130] The base station, for example, enables the 2Tx-2Tx switching mode by configuring uplinkTxSwitching-2T-Mode (uplink transmitter switching dual-transmission mode).

[0131] In an embodiment of the present invention, the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports. The second switching mode is, for example, a 2Tx-2Tx switching mode, and its corresponding switching interval is a second switching interval. The second switching mode in the following text also has the same meaning and will not be repeated.

[0132] Correspondingly, the base station may also determine the switching interval of the terminal according to a similar strategy. In some embodiments, for any frequency band pair of more than 2 uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for more than 2 uplink frequency bands, the base station determines that the terminal uses the first switching interval to perform transmitter switching between frequency bands of the frequency band pair.

[0133] Through the above embodiments, no matter what configuration the base station has, the terminal uses the first switching interval corresponding to the first switching mode according to the actual situation, for the case where two sets of transmitters are not supported to simultaneously perform uplink transmission on any frequency band in the frequency band pair. Thus, the switching interval of the terminal in this case is clarified, so that the time length of the transmission interruption caused by the terminal transmitter switching can be determined, and the base station can perform uplink scheduling or reception according to the time length, thereby improving the uplink reception performance.

[0134] Figure 4 FIG. 2 shows a flow chart of a method for switching a terminal transmitter according to another embodiment of the present invention under another strategy. Figure 4 As shown, the reporting strategy of this embodiment includes step S402.

[0135] In step S402, for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair, the terminal reports the first switching interval corresponding to the first switching mode and the second switching interval corresponding to the second switching mode.

[0136] Therefore, when each frequency band in the frequency band pair supports the terminal to use two sets of transmitters to perform uplink transmission simultaneously, the terminal reports two switching intervals at the same time, and the base station makes further decisions.

[0137] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair, the terminal in step S402 can also execute the switching step of step S404 or step S406.

[0138] In step S404, when the base station configures the second switching mode to be on for the frequency band pair or for more than two uplink frequency bands, the terminal switches the transmitter between the frequency bands of the frequency band pair using the second switching interval.

[0139] In step S406, when the base station does not configure the second switching mode to be turned on for the frequency band pair or for uplink frequency bands greater than two, the terminal uses the first switching interval to perform transmitter switching between frequency bands of the frequency band pair.

[0140] Correspondingly, the base station can also determine the switching interval of the terminal according to a similar strategy. In some embodiments, for any frequency band pair of more than 2 uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair: when the base station configures the second switching mode to be turned on for the frequency band pair or for more than 2 uplink frequency bands, the base station determines that the terminal uses the second switching interval to switch the transmitter between the frequency bands of the frequency band pair; and / or, when the base station does not configure the second switching mode to be turned on for the frequency band pair or for more than 2 uplink frequency bands, the base station determines that the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair.

[0141] Through the above embodiment, when the terminal supports using two sets of transmitters to simultaneously transmit uplink in each frequency band in the frequency band pair, the switching interval corresponding to the switching mode is selected according to the configuration of the base station. Thus, when the terminal supports each switching mode, the switching interval is used according to the instruction of the base station, making the switching of the terminal transmitter more flexible. In addition, the switching interval of the terminal in this case is clarified, so that the time length of the transmission interruption caused by the switching of the terminal transmitter can be determined, and the base station can perform uplink scheduling or reception according to the time length, thereby improving the uplink reception performance.

[0142] Referring to Table 1 and Table 2, the following describes the configuration of uplink frequency bands A, B, and C for the terminal by the base station as an example. Figure 3 , Figure 4 The strategy shown shows the switching interval reporting, switching mode configuration and switching interval used for terminal transmitter switching of the three frequency band pairs composed of the three frequency bands. Among them, frequency bands A and C support two sets of transmitters of the terminal for uplink transmission at the same time, and frequency band B only supports one set of transmitters of the terminal for uplink transmission.

[0143] Table 1

[0144]

[0145]

[0146] Table 2

[0147]

[0148] It can be seen that for the frequency band pairs AB and BC, no matter whether the base station is configured with the second switching mode, the first switching interval is used for switching.

[0149] Figure 5 FIG. 2 shows a flow chart of a method for switching a terminal transmitter according to some embodiments of the present invention under another strategy. Figure 5 As shown, the reporting strategy of this embodiment includes step S502.

[0150] In step S502, for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the terminal reports the first switching interval corresponding to the first switching mode and the second switching interval corresponding to the second switching mode.

[0151] In this embodiment, the terminal can report the switching intervals corresponding to the two switching modes at the same time, and the base station decides which switching interval to use. This method is consistent with the switching interval time length determination scheme when all frequency bands support two sets of transmitters for uplink transmission at the same time, and has configuration flexibility. In addition, the switching interval of the terminal in this case is clarified, so that the time length of the uplink transmission interruption caused by the terminal transmitter switching can be determined. The base station can perform uplink scheduling or reception based on the time length to improve the uplink reception performance.

[0152] For any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the terminal in step S502 can also execute the switching step of step S504 or S506.

[0153] In step S504, when the base station configures the second switching mode to be on for the frequency band pair or for more than two uplink frequency bands, the terminal switches the transmitter between the frequency bands of the frequency band pair using the second switching interval.

[0154] In step S506, when the base station does not configure the second switching mode to be turned on for the frequency band pair or for uplink frequency bands greater than two, the terminal uses the first switching interval to perform transmitter switching between frequency bands of the frequency band pair.

[0155] For example, when the base station is configured to enable the second switching mode, the terminal uses the second switching interval to switch between the frequency bands of the frequency band pair. When the base station is not configured to enable the second switching mode (for example, uplinkTxSwitching-2T-Mode is not configured), the terminal uses the first switching interval to switch between the frequency bands of the frequency band pair.

[0156] Therefore, the terminal can adopt the first switching interval or the second switching interval according to the instruction of the base station.

[0157] Correspondingly, the base station can also determine the switching interval of the terminal according to a similar strategy. In some embodiments, for any frequency band pair of more than 2 uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair: when the base station configures the second switching mode to be turned on for the frequency band pair or for more than 2 uplink frequency bands, the base station determines that the terminal uses the second switching interval to switch the transmitter between the frequency bands of the frequency band pair; and / or, when the base station does not configure the second switching mode to be turned on for the frequency band pair or for more than 2 uplink frequency bands, the base station determines that the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair.

[0158] Referring to Table 3, the following describes the configuration of frequency bands A, B, and C in the terminal. Figure 4 , Figure 5 The strategy shown shows the switching interval reporting, switching mode configuration and switching interval used for terminal transmitter switching of the three frequency band pairs composed of the three frequency bands. Among them, frequency bands A and C support two sets of transmitters of the terminal for uplink transmission at the same time, and frequency band B only supports one set of transmitters of the terminal for uplink transmission.

[0159] Table 3

[0160]

[0161]

[0162] It can be seen that no matter whether the frequency band supports two sets of transmitters to perform uplink transmission simultaneously, the terminal reports two switching intervals for the frequency band pair where the frequency band is located, and determines the switching interval actually used according to the configuration of the base station.

[0163] In the switching interval reporting process of each of the aforementioned embodiments, in some embodiments, the terminal reports the first switching interval through the uplink switching interval uplinkTxSwitchingPeriod-r16 of Rel 16, and reports the second switching interval through the uplink switching interval uplinkTxSwitchingPeriod2T2T-r17 of version 17, that is, the switching interval in the existing standard is reused. Alternatively, the terminal reports the first switching interval through the first uplink switching interval uplinkTxSwitchingPeriod-r18 of Rel 18, and reports the second switching interval through the second uplink switching interval uplinkTxSwitchingPeriod2T2T-r18 of version 18, that is, a newly added element is introduced for reporting.

[0164] In some embodiments, the first switching interval and the second switching interval are any one of 35us, 140us, and 210us. The first switching interval time length and the second switching interval time length may be different.

[0165] In addition, the present invention also provides a method for configuring a base station switching mode.

[0166] The base station can perform configuration for each frequency band pair one by one. In some embodiments, the switching mode is configured for each frequency band pair of more than 2 uplink frequency bands configured by the terminal. The base station can perform configuration according to the port conditions of uplink transmission supported by each frequency band in the frequency band pair of the terminal.

[0167] For example, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair, the base station may configure the second switching mode to be turned on for the frequency band pair, that is, configure uplinkTxSwitching-2T-Mode to be enabled; when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands in the frequency band pair, the base station may not configure the second switching mode to be turned on for the frequency band pair, that is, do not configure uplinkTxSwitching-2T-Mode to be enabled.

[0168] The base station may perform unified configuration for multiple frequency band pairs. In some embodiments, a unified switching mode configuration is performed for multiple frequency band pairs among more than two uplink frequency bands configured for the terminal.

[0169] For example, when there are more than two uplink frequency bands configured by the base station for the terminal, and at least two frequency bands support uplink transmission of the two antenna ports of the terminal, the base station can configure the second switching mode to be turned on for these more than two uplink frequency bands, that is, configure uplinkTxSwitching-2T-Mode to be enabled.

[0170] Reference below Figure 6 Embodiments of a terminal of the present invention are described.

[0171] Figure 6 FIG. 2 shows a schematic diagram of the structure of a terminal according to some embodiments of the present invention. Figure 6 As shown, the terminal 600 of this embodiment includes: a determination module 6100, which is configured to ignore the indication configured by the base station that the terminal regards uplink transmission of two antenna ports on at least one carrier in the target frequency band, when the next uplink transmission of the terminal requires the terminal's transmitter to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier in the target frequency band, and the terminal does not support uplink transmission of two antenna ports in the target frequency band. The terminal still regards uplink transmission of one antenna port on at least one carrier in the target frequency band to determine the uplink transmission frequency band after the transmitter is switched.

[0172] In some embodiments, the determination module 6100 is further configured to: ignore the first parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the base station, and determine the uplink transmission frequency band after the transmitter switching based on the second parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode, wherein the first parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of two antenna ports to determine the uplink transmission frequency band after the transmitter switching, and the second parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter switching; or, ignore the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the base station to determine the uplink transmission frequency band after the transmitter switching.

[0173] In some embodiments, the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the transmitter state parameters for switching the uplink transmitter in the dual uplink mode are configured by the base station as the first parameter value.

[0174] In some embodiments, the determination module 6100 is further configured to: the terminal regards an uplink transmission of one antenna port as being performed in the target frequency band and an uplink transmission of one antenna port as being performed in the frequency band associated with the target frequency band to determine the uplink transmission frequency band after the transmitter is switched; wherein:

[0175] Before the switching, the terminal performs uplink transmission of two antenna ports on at least one carrier of the first frequency band; after the switching, the terminal does not perform uplink transmission on any carrier of the first frequency band, and performs uplink transmission of one antenna port on at least one carrier of the target frequency band; when the target frequency band and the first frequency band are different frequency bands, the frequency band associated with the target frequency band is the first frequency band; and / or,

[0176] Before the switching, the terminal performs uplink transmission on one antenna port in at least one carrier of at least one frequency band in the first frequency band and the second frequency band, and the terminal supports uplink transmission on one antenna port in both the first frequency band and the second frequency band; after the switching, the terminal does not perform uplink transmission in the first frequency band and the second frequency band, and performs uplink transmission on one antenna port in at least one carrier of the target frequency band; when the target frequency band and the first frequency band and the second frequency band are different frequency bands, the frequency band associated with the target frequency band is the associated frequency band configured by the base station.

[0177] In some embodiments, the terminal 600 further includes at least one of a reporting module 6200 and a switching module 6300 .

[0178] In some embodiments, the reporting module 6200 is configured to: for any frequency band pair of more than 2 uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, report the first switching interval corresponding to the first switching mode, wherein the first switching mode is a mode of switching between a third frequency band and a fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band.

[0179] In some embodiments, the switching module 6300 is configured to: for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, use the first switching interval to switch the transmitter between the frequency bands of the frequency band pair, wherein the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0180] In some embodiments, the reporting module 6200 is configured to: for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair, report the first switching interval corresponding to the first switching mode and the second switching interval corresponding to the second switching mode, wherein the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0181] In some embodiments, the switching module 6300 is configured to, for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair: when the base station configures the second switching mode on for the frequency band pair or for more than two uplink frequency bands, use the second switching interval to switch the transmitter between the frequency bands of the frequency band pair; and / or, when the base station does not configure the second switching mode on for the frequency band pair or for more than two uplink frequency bands, use the first switching interval to switch the transmitter between the frequency bands of the frequency band pair.

[0182] In some embodiments, the reporting module 6200 is configured to: for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, report the first switching interval corresponding to the first switching mode and the second switching interval corresponding to the second switching mode, wherein the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0183] In some embodiments, the switching module 6300 is configured to, for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair: when the base station configures the second switching mode on for the frequency band pair or for more than two uplink frequency bands, use the second switching interval to switch the transmitter between the frequency bands of the frequency band pair; and / or, when the base station does not configure the second switching mode on for the frequency band pair or for more than two uplink frequency bands, use the first switching interval to switch the transmitter between the frequency bands of the frequency band pair.

[0184] Reference below Figure 7 An embodiment of a base station of the present invention is described.

[0185] Figure 7 FIG. 2 shows a schematic diagram of the structure of a base station according to some embodiments of the present invention. Figure 7 As shown, the base station 700 of this embodiment includes: a determination module 7100, which is configured to ignore the indication that the terminal is considered to be performing uplink transmission of two antenna ports on at least one carrier of the target frequency band when the next uplink transmission of the terminal requires the terminal's transmitter to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band. The base station determines the uplink transmission frequency band of the terminal after the transmitter is switched based on the fact that the terminal is still considered to be performing uplink transmission of one antenna port on at least one carrier of the target frequency band.

[0186] In some embodiments, the determination module 7100 is further configured to: ignore the first parameter value of the transmitter state parameter of the uplink transmitter switching in the configured dual uplink mode, and determine the uplink transmission frequency band of the terminal after the transmitter is switched based on the second parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode, wherein the first parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of two antenna ports to determine the uplink transmission frequency band after the transmitter is switched, and the second parameter value is used to indicate that the terminal regards at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter is switched; or, determine the uplink transmission frequency band of the terminal after the transmitter is switched based on the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the terminal being ignored.

[0187] In some embodiments, the base station 700 also includes a first configuration module 7200, which is configured to support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal when the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the transmitter state parameters of the uplink transmitter switching in the dual uplink mode are configured to the first parameter value.

[0188] In some embodiments, the base station 700 also includes a second configuration module 7300, which is configured to configure a switching mode for each frequency band pair of more than two uplink frequency bands configured for the terminal; or, to configure a unified switching mode for more than two uplink frequency bands configured for the terminal; wherein the switching mode includes a first switching mode and a second switching mode, the first switching mode being a mode of switching between a third frequency band and a fourth frequency band, the terminal supporting uplink transmission of two antenna ports in the third frequency band, and the terminal only supporting uplink transmission of one antenna port in the fourth frequency band; the second switching mode being a mode of switching between a fifth frequency band and a sixth frequency band, both the fifth frequency band and the sixth frequency band supporting uplink transmission of two antenna ports.

[0189] In some embodiments, the base station 700 further includes at least one of a receiving module 7400 or a switching interval determining module 7500 .

[0190] In some embodiments, the receiving module 7400 is configured to receive a first switching interval corresponding to a first switching mode reported by the receiving terminal for any one of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, wherein the first switching mode is a mode of switching between a third frequency band and a fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band.

[0191] In some embodiments, the switching interval determination module 7500 is configured to, for any frequency band pair among more than two uplink frequency bands configured by the base station for the terminal, determine that the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for more than two uplink frequency bands, wherein the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0192] In some embodiments, the receiving module 7400 is configured to receive a first switching interval corresponding to a first switching mode and a second switching interval corresponding to a second switching mode reported by the receiving terminal for any one of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair, wherein the first switching mode is a mode of switching between a third frequency band and a fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between a fifth frequency band and a sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0193] In some embodiments, the switching interval determination module 7500 is configured to, for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal supports uplink transmission of two antenna ports in each frequency band in the frequency band pair: when the base station configures the second switching mode on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the second switching interval to switch the transmitter between the frequency bands of the frequency band pair; and / or, when the base station does not configure the second switching mode on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair.

[0194] In some embodiments, the receiving module 7400 is configured to receive the first switching interval corresponding to the first switching mode and the second switching interval corresponding to the second switching mode reported by the terminal for any one of the uplink frequency bands greater than two configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, wherein the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

[0195] In some embodiments, the switching interval determination module 7500 is configured to, for any frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands in the frequency band pair, when the base station configures the second switching mode on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the second switching interval to switch the transmitter between the frequency bands of the frequency band pair; and / or, when the base station does not configure the second switching mode on for the frequency band pair or for more than two uplink frequency bands, the base station determines that the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair.

[0196] Reference below Figure 8 An embodiment of a system for determining an uplink transmission frequency band after transmitter switching according to the present invention is described.

[0197] Figure 8 FIG. 4 is a schematic diagram showing the structure of a system for determining an uplink transmission frequency band after transmitter switching according to some embodiments of the present invention. Figure 8 As shown, the system 80 for determining the uplink transmission frequency band after transmitter switching in this embodiment includes a terminal 810 and a base station 820. The specific implementations of the terminal 810 and the base station 820 can refer to other embodiments of the present disclosure and will not be repeated here.

[0198] Fig. 9 A schematic diagram of the structure of an electronic device according to some embodiments of the present invention is shown, and the electronic device is a terminal or a base station. Fig. 9 As shown, the electronic device 90 of this embodiment includes: a memory 910 and a processor 920 coupled to the memory 910, and the processor 920 is configured to execute the method for determining the uplink transmission frequency band after the transmitter is switched in any of the aforementioned embodiments based on the instructions stored in the memory 910.

[0199] The memory 910 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, and other programs.

[0200] Fig.10 Schematic diagrams of the structure of electronic devices according to other embodiments of the present invention are shown, where the electronic devices are terminals or base stations. Fig.10As shown, the electronic device 100 of this embodiment includes: a memory 1010 and a processor 1020, and may also include an input / output interface 1030, a network interface 1040, a storage interface 1050, etc. These interfaces 1030, 1040, 1050 and the memory 1010 and the processor 1020 may be connected, for example, via a bus 1060. Among them, the input / output interface 1030 provides a connection interface for input / output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 1040 provides a connection interface for various networked devices. The storage interface 1050 provides a connection interface for external storage devices such as SD cards and USB flash drives.

[0201] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, any one of the aforementioned methods for determining an uplink transmission frequency band after transmitter switching is implemented.

[0202] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0203] The present invention is described with reference to the flowchart and / or block diagram of the method, device (system), and computer program product according to the embodiment of the present invention. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0204] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0205] These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0206] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining an uplink transmission frequency band after transmitter switching, applied to a terminal, comprising: When the next uplink transmission of the terminal requires the transmitter of the terminal to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the terminal ignores the indication configured by the base station that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier of the target frequency band, and still regards the terminal as performing uplink transmission of one antenna port on at least one carrier of the target frequency band to determine the uplink transmission frequency band after the transmitter is switched.

2. The method according to claim 1, wherein: The terminal ignores the indication configured by the base station that the terminal regards the at least one carrier in the target frequency band as performing uplink transmission of two antenna ports, and still regards the at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter is switched, including: The terminal ignores the first parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the base station, and determines the uplink transmission frequency band after the transmitter switching based on the second parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode, wherein the first parameter value is used to indicate that the terminal regards the at least one carrier in the target frequency band as performing uplink transmission of two antenna ports to determine the uplink transmission frequency band after the transmitter switching, and the second parameter value is used to indicate that the terminal regards the at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter switching; or, The terminal ignores the transmitter state parameters of uplink transmitter switching in the dual uplink mode configured by the base station to determine the uplink transmission frequency band after the transmitter is switched.

3. The method according to claim 2, wherein: When the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the transmitter state parameters of the uplink transmitter switching in the dual uplink mode are configured by the base station as the first parameter value.

4. The method according to claim 1, wherein: The terminal ignores the indication configured by the base station that the terminal regards the at least one carrier in the target frequency band as performing uplink transmission of two antenna ports, and still regards the at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter is switched, including: The terminal is regarded as performing uplink transmission of one antenna port in the target frequency band and performing uplink transmission of one antenna port in a frequency band associated with the target frequency band to determine the uplink transmission frequency band after the transmitter is switched; wherein: Before the switching, the terminal performs uplink transmission of two antenna ports on at least one carrier of the first frequency band; after the switching, the terminal does not perform uplink transmission on any carrier of the first frequency band, and performs uplink transmission of one antenna port on the at least one carrier of the target frequency band; when the target frequency band and the first frequency band are different frequency bands, the frequency band associated with the target frequency band is the first frequency band; and / or, Before the switching, the terminal performs uplink transmission of one antenna port on at least one carrier of at least one frequency band in the first frequency band and the second frequency band, and the terminal supports uplink transmission of one antenna port in both the first frequency band and the second frequency band; after the switching, the terminal does not perform uplink transmission in the first frequency band and the second frequency band, and performs uplink transmission of one antenna port on at least one carrier in the target frequency band; when the target frequency band and the first frequency band and the second frequency band are different frequency bands, the frequency band associated with the target frequency band is the associated frequency band configured by the base station.

5. The method according to claim 1, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the terminal reports a first switching interval corresponding to the first switching mode, The first switching mode is a mode of switching between a third frequency band and a fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band.

6. The method according to claim 5, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for the more than two uplink frequency bands, the terminal uses the first switching interval to switch the transmitter between the frequency bands of the frequency band pair, The second switching mode is a mode of switching between a fifth frequency band and a sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

7. The method according to claim 1, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when each frequency band of the terminal in the frequency band pair supports uplink transmission of two antenna ports, the terminal reports a first switching interval corresponding to the first switching mode and a second switching interval corresponding to the second switching mode, Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

8. The method according to claim 7, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when each frequency band of the terminal in the frequency band pair supports uplink transmission of two antenna ports, When the base station configures the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than 2, the terminal uses the second switching interval to perform transmitter switching between the frequency bands of the frequency band pair; and / or, When the base station does not configure the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than two, the terminal uses the first switching interval to perform transmitter switching between the frequency bands of the frequency band pair.

9. The method according to claim 1, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the terminal reports a first switching interval corresponding to the first switching mode and a second switching interval corresponding to the second switching mode, Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

10. The method according to claim 9, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, if the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, When the base station configures the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than 2, the terminal uses the second switching interval to perform transmitter switching between the frequency bands of the frequency band pair; and / or, When the base station does not configure the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than two, the terminal uses the first switching interval to perform transmitter switching between the frequency bands of the frequency band pair.

11. A method for determining an uplink transmission frequency band after transmitter switching, applied to a base station, comprising: When the next uplink transmission of the terminal requires the transmitter of the terminal to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the base station ignores the indication that the terminal is configured to perform uplink transmission of two antenna ports on at least one carrier of the target frequency band, and determines the uplink transmission frequency band of the terminal after the transmitter is switched based on the fact that the terminal is still regarded as performing uplink transmission of one antenna port on at least one carrier of the target frequency band.

12. The method according to claim 11, wherein: The base station ignores the indication that the terminal is configured to perform uplink transmission of two antenna ports on the at least one carrier of the target frequency band, and determines the uplink transmission frequency band of the terminal after the transmitter is switched based on the terminal still being regarded as performing uplink transmission of one antenna port on the at least one carrier of the target frequency band, including: The base station ignores the first parameter value of the transmitter state parameter of the uplink transmitter switching in the configured dual uplink mode, and determines the uplink transmission frequency band of the terminal after the transmitter switching based on the second parameter value of the transmitter state parameter of the uplink transmitter switching in the dual uplink mode, wherein the first parameter value is used to indicate that the terminal regards the at least one carrier in the target frequency band as performing uplink transmission of two antenna ports to determine the uplink transmission frequency band after the transmitter switching, and the second parameter value is used to indicate that the terminal regards the at least one carrier in the target frequency band as performing uplink transmission of one antenna port to determine the uplink transmission frequency band after the transmitter switching; or, The base station determines the uplink transmission frequency band of the terminal after the transmitter is switched according to the transmitter state parameter of the uplink transmitter switching in the dual uplink mode configured by the terminal ignoring the configuration.

13. The method according to claim 12, further comprising: When the frequency bands for uplink transmission of the two sets of transmitters of the terminal both support dynamic switching between more than two uplink frequency bands configured by the base station for the terminal, and when there is at least one frequency band among the more than two uplink frequency bands that supports uplink transmission of two antenna ports, the base station configures the transmitter state parameters for switching the uplink transmitter in the dual uplink mode to the first parameter value.

14. The method according to claim 11, further comprising: The base station configures a switching mode for each frequency band pair of more than two uplink frequency bands configured for the terminal; or, The base station configures a unified switching mode for more than two uplink frequency bands configured for the terminal; Among them, the switching mode includes a first switching mode and a second switching mode, the first switching mode is a mode of switching between a third frequency band and a fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between a fifth frequency band and a sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

15. The method according to claim 11, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the base station receives a first switching interval corresponding to a first switching mode reported by the terminal, The first switching mode is a mode of switching between a third frequency band and a fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band.

16. The method according to claim 15, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, regardless of whether the base station configures the second switching mode to be turned on for the frequency band pair or for the more than two uplink frequency bands, the base station determines that the terminal uses the first switching interval to perform transmitter switching between the frequency bands of the frequency band pair, The second switching mode is a mode of switching between a fifth frequency band and a sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

17. The method according to claim 11, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when each frequency band of the terminal in the frequency band pair supports uplink transmission of two antenna ports, the base station receives a first switching interval corresponding to a first switching mode and a second switching interval corresponding to a second switching mode reported by the terminal, Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

18. The method according to claim 17, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when each frequency band of the terminal in the frequency band pair supports uplink transmission of two antenna ports, When the base station configures the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than two, the base station determines that the terminal uses the second switching interval to perform transmitter switching between the frequency bands of the frequency band pair; and / or, When the base station does not configure the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than 2, the base station determines that the terminal uses the first switching interval to perform transmitter switching between the frequency bands of the frequency band pair.

19. The method according to claim 11, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, when the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, the base station receives a first switching interval corresponding to a first switching mode and a second switching interval corresponding to a second switching mode reported by the terminal, Among them, the first switching mode is a mode of switching between the third frequency band and the fourth frequency band, the terminal supports uplink transmission of two antenna ports in the third frequency band, and the terminal only supports uplink transmission of one antenna port in the fourth frequency band; the second switching mode is a mode of switching between the fifth frequency band and the sixth frequency band, and both the fifth frequency band and the sixth frequency band support uplink transmission of two antenna ports.

20. The method according to claim 19, further comprising: For any one frequency band pair of more than two uplink frequency bands configured by the base station for the terminal, if the terminal does not support uplink transmission of two antenna ports in one or two frequency bands of the frequency band pair, When the base station configures the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than two, the base station determines that the terminal uses the second switching interval to perform transmitter switching between the frequency bands of the frequency band pair; and / or, When the base station does not configure the second switching mode to be turned on for the frequency band pair or for the uplink frequency bands greater than 2, the base station determines that the terminal uses the first switching interval to perform transmitter switching between the frequency bands of the frequency band pair.

21. A terminal, comprising: A determination module is configured to, when the next uplink transmission of the terminal requires the transmitter of the terminal to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the terminal ignores the indication configured by the base station that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier of the target frequency band, and still regards the terminal as performing uplink transmission of one antenna port on at least one carrier of the target frequency band to determine the uplink transmission frequency band after the transmitter is switched.

22. A terminal, comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method for determining an uplink transmission frequency band after transmitter switching according to any one of claims 1 to 10 based on instructions stored in the memory.

23. A base station, comprising: A determination module is configured to, when the next uplink transmission of the terminal requires the transmitter of the terminal to switch to the target frequency band to perform uplink transmission of one antenna port on at least one carrier of the target frequency band, and the terminal does not support uplink transmission of two antenna ports on the target frequency band, the base station ignores the configured indication that the terminal is regarded as performing uplink transmission of two antenna ports on the at least one carrier of the target frequency band, and determines the uplink transmission frequency band of the terminal after the transmitter is switched based on the fact that the terminal is still regarded as performing uplink transmission of one antenna port on the at least one carrier of the target frequency band.

24. A base station, comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method for determining an uplink transmission frequency band after transmitter switching according to any one of claims 11 to 20 based on instructions stored in the memory.

25. A system for determining an uplink transmission frequency band after a transmitter is switched, comprising: The terminal according to claim 21 or 22; as well as A base station as claimed in claim 23 or 24.

26. A computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, the method for determining an uplink transmission frequency band after transmitter switching according to any one of claims 1 to 20 is implemented.

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