Method and system for determining transmitter state of terminal, base station and terminal

Abstract

The present disclosure relates to a method and system for determining the transmitter state of a terminal, as well as a base station and a terminal, and relates to the field of communication technology. The method of the present disclosure includes: the base station sends transmitter state configuration information to the terminal, wherein the frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, and the transmitter state configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching; the base station determines the transmitter state of the terminal after switching according to the transmitter state configuration information.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method and system for determining a transmitter state of a terminal, as well as a base station and a terminal. Background Art

[0002] Super Uplink (SUB) is a technology that enables UL Tx switching. Standardization for 5G New Radio (NR) Release 16 (Rel-16) and Rel-17 Super Uplink Enhancements has been completed. These enhancements improve NR uplink capacity and coverage, while also reducing latency.

[0003] Due to the multi-carrier uplink transmission scheme in Rel-16 and Rel-17, the transmitter switching mechanism for terminals supporting two transmitters is limited. That is, the frequency band for uplink transmission of the terminal transmitter can only be dynamically switched between the two uplink frequency bands configured by Radio Resource Control (RRC) signaling. To further improve the uplink data rate, spectrum utilization, and uplink capacity, terminals supporting two transmitters will dynamically switch the frequency bands supporting the two transmitters for uplink transmission between three or four uplink frequency bands. Summary of the Invention

[0004] The inventors discovered that when a terminal's two transmitters dynamically switch between three or four uplink frequency bands, in some cases, the terminal's transmitter status becomes non-unique after the frequency band switch. This means the base station cannot determine the terminal's transmitter status after the switch. The terminal's transmitter status is an important reference indicator for the base station. For example, it can be used to determine the switching time for the terminal's transmitter to switch, and whether the terminal cannot perform uplink transmission during the switching time.

[0005] A technical problem to be solved by the present disclosure is: how to determine the transmitter status of the terminal when the frequency bands for uplink transmission of two sets of transmitters of the terminal are dynamically switched between more than two uplink frequency bands.

[0006] According to some embodiments of the present disclosure, a method for determining the transmitter status of a terminal is provided, including: a base station sends transmitter status configuration information to the terminal, wherein a frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, and the transmitter status configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter status of the terminal after switching; the base station determines the transmitter status of the terminal after switching according to the transmitter status configuration information.

[0007] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a frequency band greater than the first of the two frequency bands; 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 a frequency band greater than the second of the two frequency bands.

[0008] In some embodiments, the transmitter state configuration information is used to indicate that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, or to indicate that the terminal is regarded as performing uplink transmission of two antenna ports in at least one carrier in the second frequency band.

[0009] In some embodiments, the transmitter state configuration information is the first uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the first uplinkTxSwitching-DualUL-TxState information element is configured as a first preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, and the first uplinkTxSwitching-DualUL-TxState information element is configured as a second preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the second frequency band.

[0010] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than the first frequency band and the second frequency band of the two frequency bands, 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 third frequency band greater than the two frequency bands.

[0011] In some embodiments, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the first frequency band as performing uplink transmission of one antenna port, and at least one carrier in the third frequency band as performing uplink transmission of one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the second frequency band as performing uplink transmission of one antenna port, and at least one carrier in the third frequency band as performing uplink transmission of one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the third frequency band as performing uplink transmission of two antenna ports.

[0012] In some embodiments, the transmitter state configuration information is the second uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the second uplinkTxSwitching-DualUL-TxState information element is configured as a third preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the first frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, the second uplinkTxSwitching-DualUL-TxState information element is configured as a fourth preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the second frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, and the second information element is configured as a fifth preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the third frequency band.

[0013] In some embodiments, the method also includes: the base station receives capability information of the terminal, wherein the capability information includes one or more of the following information: the transmitter switching option supported by the terminal is dual uplink, information for each frequency band greater than two frequency bands, and the terminal supports two sets of transmitters in each frequency band greater than two frequency bands; the base station sends transmitter switching configuration information to the terminal, and the transmitter switching configuration information includes one or more of the following information: configuration information for each frequency band greater than two frequency bands, transmitter switching mode configuration information, and transmitter switching option configuration information, wherein the transmitter switching mode configuration information configures the terminal to support two sets of transmitters in each frequency band greater than two frequency bands, and the transmitter switching option configuration information configures the transmitter switching option to be dual uplink.

[0014] According to other embodiments of the present disclosure, a method for determining the transmitter status of a terminal is provided, including: the terminal receives transmitter status configuration information sent by a base station, wherein a frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, and the transmitter status configuration information is used to: after the terminal's transmitter switches the frequency band for uplink transmission, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching; the terminal determines the transmitter state after switching according to the transmitter status configuration information, and switches the frequency band for uplink transmission.

[0015] In some embodiments, the method also includes: the terminal sends capability information to the base station, wherein the capability information includes one or more of the following information: the transmitter switching option supported by the terminal is dual uplink, information for each frequency band greater than two frequency bands, and the terminal supports two sets of transmitters in each frequency band greater than two frequency bands; the terminal receives transmitter switching configuration information sent by the base station, and the transmitter switching configuration information includes one or more of the following information: configuration information for each frequency band greater than two frequency bands, transmitter switching mode configuration information, and transmitter switching option configuration information, wherein the transmitter switching mode configuration information configures the terminal to support two sets of transmitters in each frequency band greater than two frequency bands, and the transmitter switching option configuration information configures the transmitter switching option to dual uplink.

[0016] According to some further embodiments of the present disclosure, a base station is provided, comprising: a transmitter for sending transmitter status configuration information to a terminal, wherein a frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, and the transmitter status configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching; and a controller for determining the transmitter state of the terminal after switching according to the transmitter status configuration information.

[0017] According to some further embodiments of the present disclosure, a terminal is provided, comprising: a receiver for receiving transmitter status configuration information sent by a base station, wherein a frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, and the transmitter status configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching; a controller is used to determine the transmitter state after switching according to the transmitter status configuration information, and control the transmitter to switch the frequency band for uplink transmission.

[0018] According to some further embodiments of the present disclosure, a communication device is provided, comprising: a processor; and a memory coupled to the processor, for storing instructions, which, when executed by the processor, causes the processor to execute the transmitter status determination method of the terminal as described in any of the aforementioned embodiments.

[0019] According to some further embodiments of the present disclosure, a communication system is provided, including: the base station of any of the aforementioned embodiments and the terminal of any of the aforementioned embodiments.

[0020] In the present disclosure, in a scenario where the frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, the base station sends transmitter state configuration information to the terminal. The transmitter state configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching, so that the terminal performs uplink transmission according to the transmitter state configuration information, and then the base station can determine the transmitter state of the terminal after switching according to the transmitter state configuration information. This helps the base station determine whether the subsequent uplink transmission requires the terminal to switch the transmitter, whether the switching time of the terminal transmitter is required, and thus determine whether the uplink transmission is interrupted due to the terminal transmitter switching. The solution disclosed in the present disclosure can further improve the NR uplink data rate, spectrum utilization and uplink capacity.

[0021] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic flow chart illustrating a method for determining a transmitter state of a terminal according to some embodiments of the present disclosure is shown.

[0024] Figure 2 A schematic flow chart illustrating a method for determining a transmitter status of a terminal according to other embodiments of the present disclosure is shown.

[0025] Figure 3 A schematic structural diagram of a base station according to some embodiments of the present disclosure is shown.

[0026] Figure 4 A schematic diagram showing the structure of a terminal according to some embodiments of the present disclosure is shown.

[0027] Figure 5 A schematic structural diagram of a communication device according to some embodiments of the present disclosure is shown.

[0028] Figure 6A schematic structural diagram of a communication device according to another embodiment of the present disclosure is shown.

[0029] Figure 7 A schematic structural diagram of a communication system according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0031] The present disclosure proposes a method for determining the transmitter status of a terminal. Figures 1-2 Provide a description.

[0032] Figure 1 Flowchart of some embodiments of the method for determining the transmitter status of the terminal disclosed in the present invention. Figure 1 As shown, the method of this embodiment includes: steps S102 to S104.

[0033] In step S102, the base station sends transmitter state configuration information to the terminal, and correspondingly, the terminal receives the transmitter state configuration information sent by the base station.

[0034] The frequency band used by the terminal's transmitter for uplink transmission is dynamically switched between frequency bands greater than two. For example, the transmitter state configuration information is used to indicate the transmitter state of the terminal after switching the frequency band used for uplink transmission of the terminal's transmitter if the terminal's transmitter has a non-unique selectable state.

[0035] The following first describes the status of the terminal's transmitter in three or four frequency bands and possible situations of the uplink transmission antenna port in conjunction with Table 1 and Table 2.

[0036] Table 1 shows the possible states of the terminal transmitter across the three frequency bands and the uplink transmission antenna ports. If the transmitter state of the current uplink transmission differs from that of the previous uplink transmission, the terminal needs to switch transmitters, which requires a switching time. During this switching time, the terminal cannot perform uplink transmission.

[0037] Table 1

[0038]

[0039] For example, case 1 indicates that two sets of transmitters of the terminal can perform uplink transmission in frequency band A. In this case, the terminal can perform uplink transmission on two antenna ports in frequency band A, or perform uplink transmission on one antenna port in frequency band A.

[0040] Table 2 shows the possible states of the terminal's transmitter across the four frequency bands and the uplink transmission antenna ports. If the transmitter state of the current uplink transmission differs from that of the previous uplink transmission, the terminal must switch transmitters. This requires a switching time, during which the terminal cannot perform uplink transmissions.

[0041] Table 2

[0042]

[0043]

[0044] For example, case 5 indicates that one set of transmitters of the terminal can perform uplink transmission in frequency band A, and one set of transmitters can perform uplink transmission in frequency band B. At this time, the terminal can perform uplink transmission of one antenna port in frequency band A, or perform uplink transmission of one antenna port in frequency bands A and B respectively, or perform uplink transmission of one antenna port in frequency band B.

[0045] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a frequency band greater than the first of the two frequency bands; 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 a frequency band greater than the second of the two frequency bands.

[0046] Before the switch, the terminal supports uplink transmission of two antenna ports on at least one carrier in a first frequency band greater than two frequency bands, and the corresponding transmitter state can be 2T in the first frequency band greater than two frequency bands (such as three or four frequency bands), and 0T in the remaining frequency bands. After the switch, 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 a second frequency band greater than two frequency bands. The corresponding optional transmitter states may include: State 1: 1T in the first frequency band (i.e., one transmitter set can perform uplink transmission in the first frequency band), 1T in the second frequency band, and 0T in the remaining frequency bands; or State 2: 0T in the first frequency band, 2T in the second frequency band, and 0T in the remaining frequency bands.

[0047] For example, as shown in Table 1, before the switch, it is Case 1. At least one carrier in the first frequency band (e.g., frequency band A) of the terminal supports uplink transmission of two antenna ports. After the switch, the terminal does not perform uplink transmission on any carrier in frequency band A, and performs uplink transmission on one antenna port on at least one carrier in a frequency band larger than the second of the two frequency bands (e.g., frequency band B), which can correspond to Cases 2 (State 2), 4 (State 1), and 6. Case 2 means that the terminal switches the frequency band for uplink transmission of the two transmitters to frequency band B. Case 4 means that the terminal switches the frequency band for uplink transmission of one of the two transmitters to frequency band B, while the frequency band for uplink transmission of the other transmitter remains in frequency band A. Case 6 means that the terminal switches the frequency band for uplink transmission of one of the two transmitters to frequency band B, while the frequency band for uplink transmission of the other transmitter switches to frequency band C. The transmitter states in cases 2, 4, and 6 are different, but since the base station determines the transmitter state of the terminal based on the antenna port status of the uplink transmission, the base station cannot determine whether the transmitter state of the terminal corresponds to case 2, case 4, or case 6 after the frequency band of the uplink transmission is switched.

[0048] For example, as shown in Table 2, before the switch, it is Case 1. At least one carrier in the first frequency band (e.g., Band A) of the terminal supports uplink transmission on two antenna ports. After the switch, the terminal does not perform uplink transmission on any carrier in Band A, but performs uplink transmission on one antenna port on at least one carrier in a frequency band larger than the second of the two frequency bands (e.g., Band B). These cases correspond to Cases 2 (State 2), 5 (State 1), 8, and 9. Case 2 involves the terminal switching the frequency bands used for uplink transmission by both transmitters to Band B. Case 5 involves the terminal switching the frequency band used for uplink transmission by one of the two transmitters to Band B, while the frequency band used for uplink transmission by the other transmitter remains in Band A. Case 8 involves the terminal switching the frequency band used for uplink transmission by one of the two transmitters to Band B, while the frequency band used for uplink transmission by the other transmitter is switched to Band C. Case 9 involves the terminal switching the frequency band used for uplink transmission by one of the two transmitters to Band B, while the frequency band used for uplink transmission by the other transmitter is switched to Band D. The transmitter states in cases 2, 5, 8, and 9 are different, but since the base station determines the transmitter state of the terminal based on the antenna port status of the uplink transmission, the base station cannot determine which of cases 2, 5, 8, and 9 the transmitter state corresponds to after the frequency band of the terminal transmitter is switched for uplink transmission.

[0049] For a terminal, if, before switching, the terminal supports uplink transmission on two antenna ports on at least one carrier in a frequency band greater than the first of two frequency bands, and subsequently receives uplink scheduling information from the base station instructing the terminal to perform uplink transmission on one antenna port in the second frequency band, the terminal's transmitter selectable state is not unique. For example, the terminal in Table 1 can switch according to one of situations 2, 4, and 6, and the terminal in Table 2 can switch according to one of situations 2, 5, 8, and 9. If the terminal arbitrarily selects one of these situations for switching, the base station cannot determine the terminal's transmitter state. The base station's determination of the terminal's transmitter state helps determine whether subsequent uplink transmission requires the terminal to switch its transmitter and whether switching time is required for the terminal's transmitter. During the switching time, the terminal cannot perform uplink transmission.

[0050] Based on the above situation where the terminal's transmitter has a non-unique selectable state for uplink transmission after switching the frequency band for uplink transmission, the base station may send transmitter state configuration information to the terminal. The transmitter state configuration information is used to configure the transmitter state considered by the terminal. In some embodiments, the transmitter state configuration information is used to instruct the terminal to consider uplink transmission on one antenna port in the first frequency band and uplink transmission on one antenna port in the second frequency band, or to instruct the terminal to consider uplink transmission on two antenna ports on at least one carrier in the second frequency band.

[0051] Transmitter state 1 corresponds to the terminal being considered to be performing uplink transmission on one antenna port in the first frequency band and on one antenna port in the second frequency band. Transmitter state 2 corresponds to the terminal being considered to be performing uplink transmission on two antenna ports on at least one carrier in the second frequency band. In the aforementioned examples in Tables 1 and 2, although the selectable states of the terminal transmitter are different after switching, that is, the aforementioned examples in Tables 1 and 2 may correspond to different situations after switching, State 1 and State 2 are common selectable states in the aforementioned examples in Tables 1 and 2. Through the aforementioned embodiments, a universal transmitter state determination method can be used for dynamically switching the frequency band for uplink transmission of the terminal transmitter between frequency bands greater than two frequency bands.

[0052] Further, in some embodiments, the transmitter state configuration information is a first uplink transmitter switching dual uplink transmitter state (uplinkTxSwitching-DualUL-TxState) information element in a radio resource control (Radio Resource Control, RRC) information element, the first uplinkTxSwitching-DualUL-TxState information element is configured as a first preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, and the first uplinkTxSwitching-DualUL-TxState information element is configured as a second preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the second frequency band.

[0053] For example, uplinkTxSwitching-DualUL-TxState is configured as OneT, which is used to indicate that the terminal is regarded as performing uplink transmission on one antenna port in the first frequency band and uplink transmission on one antenna port in the second frequency band; or uplinkTxSwitching-DualUL-TxState is configured as twoT, which is used to indicate that the terminal is regarded as performing uplink transmission on two antenna ports on at least one carrier in the second frequency band. If the terminal receives an RRC information element in which uplinkTxSwitching-DualUL-TxState is configured as OneT, the terminal should be regarded as performing uplink transmission on one antenna port in the first frequency band and uplink transmission on one antenna port in the second frequency band; otherwise, the terminal should be regarded as performing uplink transmission on one antenna port in the second frequency band.

[0054] For example, in the scenario where the frequency band of the transmitter of the terminal for uplink transmission in Table 1 above is case 1 before switching and can be case 2, 4, or 6 after switching, if the terminal receives the uplinkTxSwitching-DualUL-TxState configuration as OneT in the RRC information element of the base station, then after the transmitter of the terminal is switched, it can be switched from case 1 to case 2 or 4 or 6. The terminal switches to case 4 according to the OneT configured with uplinkTxSwitching-DualUL-TxState, that is, the frequency band for uplink transmission of one of the two sets of transmitters is switched to band B, and the frequency band for uplink transmission of the other set of transmitters remains in band A. For example, in the scenario where the frequency band of the transmitter of the terminal for uplink transmission in Table 2 above is case 1 before switching and can be case 2, 5, 8, or 9 after switching, if the terminal receives the uplinkTxSwitching-DualUL-TxState configuration as OneT in the RRC information element of the base station, then after the transmitter of the terminal is switched, it can be switched from case 1 to case 2 or 5 or 8 or 9. The terminal switches to case 5 according to the OneT configured with uplinkTxSwitching-DualUL-TxState, that is, the frequency band for uplink transmission of one of the two sets of transmitters is switched to band B, and the frequency band for uplink transmission of the other set of transmitters remains in band A.

[0055] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than the first frequency band and the second frequency band of the two frequency bands, 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 third frequency band greater than the two frequency bands.

[0056] Before the switching, the terminal performs uplink transmission on one antenna port on at least one carrier in at least one of a first frequency band and a second frequency band that are greater than two frequency bands. The corresponding transmitter state may be 1T and 1T, respectively, in the first frequency band and the second frequency band that are greater than two frequency bands (such as three or four frequency bands), and 0T in the remaining frequency bands. After the switching, the terminal does not perform uplink transmission on the first frequency band and the second frequency band, but performs uplink transmission on one antenna port on at least one carrier in a third frequency band that are greater than the two frequency bands. The corresponding transmitter state may include: State 1: 1T for the second frequency band, 1T for the third frequency band, and 0T for the remaining frequency bands; or State 2: 1T for the first frequency band, 1T for the third frequency band, and 0T for the remaining frequency bands; or State 3: 2T for the third frequency band, and 0T for the remaining frequency bands.

[0057] For example, as shown in Table 1, before switching, the terminal performs uplink transmission (1P+1P+0P) on one antenna port in the first frequency band A and the second frequency band B. After switching, the terminal does not perform uplink transmission on frequency bands A and B, but performs uplink transmission on one antenna port in at least one carrier in a third frequency band (e.g., frequency band C) greater than the two frequency bands. This corresponds to cases 3 (state 3), 5 (state 2), and 6 (state 1). Case 3 means that the terminal switches the frequency bands used by both transmitters for uplink transmission to frequency band C. Case 5 means that the terminal switches the frequency band used by one transmitter for uplink transmission from frequency band B to frequency band C, while the frequency band used by the other transmitter for uplink transmission remains in frequency band A. Case 6 means that the terminal switches the frequency band used by one transmitter for uplink transmission from frequency band A to frequency band C, while the frequency band used by the other transmitter for uplink transmission remains in frequency band B. The transmitter states in cases 3, 5, and 6 are different, but since the base station determines the transmitter state of the terminal based on the antenna port status of the uplink transmission, the base station cannot determine whether the transmitter state of the terminal corresponds to case 3, 5, or 6 after the frequency band of the uplink transmission is switched.

[0058] For example, as shown in Table 2, before switching, the terminal performs uplink transmission (1P+1P+0P+0P) on one antenna port in each of the first frequency band (e.g., frequency band A) and the second frequency band (e.g., frequency band B). After switching, the terminal does not perform uplink transmission on frequency bands A and B, but performs uplink transmission on one antenna port in at least one carrier in a third frequency band (e.g., frequency band C) that is larger than the two frequency bands. This corresponds to situations 3 (state 3), 6 (state 2), 8 (state 1), and 10. Case 3: The terminal switches the uplink transmission frequency band of both transmitters to Band C. Case 6: The terminal switches the uplink transmission frequency band of one transmitter from Band B to Band C, while the other transmitter remains in Band A. Case 8: The terminal switches the uplink transmission frequency band of one transmitter from Band A to Band C, while the other transmitter remains in Band B. Case 10: The terminal switches the uplink transmission frequency band of both transmitters from Bands A and B to Bands C and D. The transmitter states in cases 3, 6, 8, and 10 are different. However, because the base station determines the terminal's transmitter state based on the uplink antenna port status, it cannot determine whether the terminal's transmitter state corresponds to Case 3, 6, 8, or 10 after the uplink transmission frequency band switch.

[0059] For a terminal, if at least one carrier in at least one of the first and second frequency bands performs uplink transmission on one antenna port before switching, and then receives uplink scheduling information sent by the base station instructing the terminal to perform uplink transmission on one antenna port in the third frequency band, the terminal's transmitter selectable state is not unique. For example, the terminal in Table 1 can switch according to situations 3, 5, or 6, and the terminal in Table 2 can switch according to situations 3, 6, 8, or 10. If the terminal arbitrarily selects any one of the situations for switching, the base station cannot determine the terminal's transmitter state. The base station's determination of the terminal's transmitter state helps determine whether subsequent uplink transmission requires the terminal to switch its transmitter and whether switching time is required for the terminal's transmitter switching. The terminal cannot perform uplink transmission during the switching time.

[0060] Based on the above-mentioned situation where the transmitter of the terminal switches the frequency band for uplink transmission and the optional state of the terminal's transmitter is not unique, the base station can send transmitter state configuration information to the terminal. The transmitter state regarded by the terminal is configured through the transmitter state configuration information. In some embodiments, the transmitter state configuration information is used to indicate that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the first frequency band, and performing uplink transmission of one antenna port on at least one carrier in the third frequency band; or, the transmitter state configuration information is used to indicate that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the second frequency band, and performing uplink transmission of one antenna port on at least one carrier in the third frequency band; or, the transmitter state configuration information is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the third frequency band.

[0061] The terminal is considered to be performing uplink transmission on one antenna port on at least one carrier in the first frequency band and performing uplink transmission on one antenna port on at least one carrier in the third frequency band, corresponding to transmitter state 2. The terminal is considered to be performing uplink transmission on one antenna port on at least one carrier in the second frequency band and performing uplink transmission on one antenna port on at least one carrier in the third frequency band, corresponding to transmitter state 1. The terminal is considered to be performing uplink transmission on two antenna ports on at least one carrier in the third frequency band, corresponding to transmitter state 3. In the aforementioned examples in Tables 1 and 2, although the optional states of the terminal transmitter are different after switching, that is, the aforementioned examples in Tables 1 and 2 can correspond to different situations after switching, State 1, State 2, and State 3 are common optional states in the aforementioned examples in Tables 1 and 2. Through the aforementioned embodiments, a universal transmitter state determination method can be used for dynamic switching between frequency bands greater than two for the frequency bands in which the terminal transmitter performs uplink transmission.

[0062] Further, in some embodiments, the transmitter state configuration information is a second uplink transmitter switching dual uplink transmitter state (uplinkTxSwitching-DualUL-TxState) information element in the radio resource control RRC information element, the second uplinkTxSwitching-DualUL-TxState information element is configured as a third preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the first frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, the second uplinkTxSwitching-DualUL-TxState information element is configured as a fourth preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the second frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, and the second uplinkTxSwitching-DualUL-TxState information element is configured as a fifth preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the third frequency band.

[0063] For example, if the terminal receives an RRC information element in which uplinkTxSwitching-DualUL-TxState is configured as the third preset value, the terminal should regard it as performing uplink transmission of one antenna port on at least one carrier in the first frequency band, and performing uplink transmission of one antenna port on at least one carrier in the third frequency band. If the terminal receives an RRC information element in which uplinkTxSwitching-DualUL-TxState is configured as the fourth preset value, the terminal should regard it as performing uplink transmission of one antenna port on at least one carrier in the second frequency band, and performing uplink transmission of one antenna port on at least one carrier in the third frequency band. If the terminal receives an RRC information element in which uplinkTxSwitching-DualUL-TxState is configured as the fifth preset value, the terminal should regard it as performing uplink transmission of two antenna ports on at least one carrier in the third frequency band.

[0064] For example, in the scenario where the frequency band of the transmitter for uplink transmission of the terminal in Table 1 above is situation 4 before switching and can be situation 3, 5, or 6 after switching, if the terminal receives the uplinkTxSwitching-DualUL-TxState configuration in the RRC information element of the base station as the third preset value, then after the transmitter of the terminal is switched, it can be switched from situation 4 to situation 3, 5, or 6. The terminal switches to situation 5 according to the third preset value of the uplinkTxSwitching-DualUL-TxState configuration, that is, the frequency band for uplink transmission of one set of transmitters is switched from band B to band C, and the frequency band for uplink transmission of the other set of transmitters remains in band A.

[0065] For example, in the scenario where the frequency band of the transmitter for uplink transmission of the terminal in Table 2 above is situation 5 before switching and can be situation 3, 6, 8, or 10 after switching, if the terminal receives the uplinkTxSwitching-DualUL-TxState configuration as the third preset value in the RRC information element of the base station, then the transmitter of the terminal can be switched from situation 5 to situation 3, 6, 8, or 10. The terminal switches to situation 6 according to the third preset value of the uplinkTxSwitching-DualUL-TxState configuration, that is, the frequency band for uplink transmission of one set of transmitters is switched from band B to band C, and the frequency band for uplink transmission of the other set of transmitters remains in band A.

[0066] In step S104, the base station determines the transmitter state of the terminal after switching according to the transmitter state configuration information. Correspondingly, the terminal determines the transmitter state after switching according to the transmitter state configuration information and switches the frequency band of uplink transmission.

[0067] The base station can directly determine the terminal's transmitter state after switching based on the transmitter state configuration information. This can then determine whether subsequent uplink transmissions require the terminal to switch transmitters, whether a switching time is required for the terminal's transmitter switching, and other factors. If the terminal's transmitter selectable state is not unique, the terminal can switch the frequency band for uplink transmission based on the transmitter state configuration information.

[0068] In the above embodiment, in the scenario where the frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, the base station sends transmitter state configuration information to the terminal. The transmitter state configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching, so that the terminal performs uplink transmission according to the transmitter state configuration information, and then the base station can determine the transmitter state of the terminal after switching according to the transmitter state configuration information. This helps the base station determine whether the subsequent uplink transmission requires the terminal to switch the transmitter, whether the switching time of the terminal transmitter is required, and thus determine whether the uplink transmission is interrupted due to the terminal transmitter switching. The solution of the above embodiment can further improve the NR uplink data rate, spectrum utilization and uplink capacity.

[0069] The following combination Figure 2 Other embodiments of the method for determining the transmitter status of a terminal disclosed herein are described.

[0070] Figure 2 Flowcharts of other embodiments of the method for determining the transmitter status of a terminal disclosed herein. Figure 2As shown, the method of this embodiment includes: steps S202 to S208.

[0071] In step S202, the terminal sends capability information to the base station, and correspondingly, the base station receives the capability information of the terminal.

[0072] For example, the capability information includes one or more of the following information: the transmitter switching option supported by the terminal is dual uplink (dual UL), information of each frequency band greater than two frequency bands, and the terminal supports two sets of transmitters in each frequency band greater than two frequency bands.

[0073] In step S204, the base station sends transmitter switching configuration information and transmitter state configuration information to the terminal. Correspondingly, the terminal receives the transmitter switching configuration information and transmitter state configuration information sent by the base station.

[0074] For example, the transmitter switching configuration information includes one or more of the following information: configuration information of each frequency band greater than two frequency bands, transmitter switching mode configuration information, and transmitter switching option configuration information, wherein the transmitter switching mode configuration information configures the terminal to support two sets of transmitters in each frequency band greater than two frequency bands, and the transmitter switching option configuration information configures the transmitter switching option to dual uplink.

[0075] The disclosed solution can be applied to a terminal that supports two sets of transmitters, supports simultaneous uplink transmission on carriers of different frequency bands, and supports dynamic switching of the frequency bands of the two sets of transmitters for uplink transmission between frequency bands greater than two uplink frequency bands. The terminal can inform the base station through capability reporting that it supports simultaneous uplink transmission on carriers of different frequency bands, that is, supports dual uplink (dual UL), and supports the ability of two sets of transmitters to dynamically switch between more than two uplink frequency bands. The base station configures the terminal to perform uplink transmitter switching in a mode that supports two sets of transmitters for each frequency band, configures the uplink transmitter switching option (uplinkTxSwitchingOption) to support simultaneous uplink transmission on carriers of different frequency bands, that is, dual uplink (dual UL), and configures more than two frequency bands that the transmitter can switch, such as 3 or 4 frequency bands. The scenario of multi-carrier uplink transmission that can be used at this time is, for example, multi-carrier uplink transmission of carrier aggregation (CA) between frequency bands.

[0076] The base station may first send the transmitter switching configuration information to the terminal, and then send the transmitter state configuration information to the terminal. The base station may also first send the transmitter state configuration information to the terminal, and then send the transmitter switching configuration information to the terminal. The base station may also send the transmitter switching configuration information and the transmitter state configuration information to the terminal at the same time.

[0077] In step S206, the base station determines the transmitter state of the terminal after switching according to the transmitter state configuration information. Correspondingly, the terminal determines the transmitter state after switching according to the transmitter state configuration information and switches the frequency band of uplink transmission.

[0078] Steps S204 to S206 may refer to steps S102 to S104 and will not be described in detail here.

[0079] In each of the above embodiments, the base station transmits transmitter state configuration information to the terminal to indicate the terminal's transmitter state after switching the frequency band for uplink transmission, if the terminal's transmitter has a non-unique selectable transmitter state. For situations where the terminal's transmitter has a non-unique selectable transmitter state after switching the frequency band for uplink transmission, the following method can also be used to determine the terminal's transmitter state.

[0080] Solution (1): The protocol specifies, that is, pre-sets, the terminal's transmitter state after switching the frequency band for uplink transmission when the terminal's transmitter has not the only selectable state.

[0081] Solution (2): After the terminal determines that the frequency band of the terminal's transmitter is switched for uplink transmission, if the terminal's transmitter optional state is not unique, the terminal's transmitter state after switching is reported to the base station through uplink transmission.

[0082] For the above two schemes (1) and (2), the situations in which the terminal's transmitter optional state is not unique include: Situation 1: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a frequency band greater than the first frequency band of the two frequency bands, and after switching, the terminal does not perform uplink transmission on any carrier in the first frequency band, and performs uplink transmission of one antenna port on at least one carrier in a frequency band greater than the second frequency band of the two frequency bands; Situation 2: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than the first frequency band and the second frequency band of the two frequency bands, and the terminal supports uplink transmission of one antenna port in both the first frequency band and the second frequency band, and 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 a frequency band greater than the third frequency band of the two frequency bands. You can refer to the above embodiment and will not repeat it here.

[0083] In solution (1), for situation 1, the protocol may stipulate (pre-set) that the terminal is regarded as performing uplink transmission with one antenna port in the first frequency band and uplink transmission with one antenna port in the second frequency band, or the terminal is regarded as performing uplink transmission with two antenna ports on at least one carrier in the second frequency band. For situation 2, the protocol may stipulate (pre-set) that the terminal is regarded as performing uplink transmission with one antenna port on at least one carrier in the first frequency band and uplink transmission with one antenna port on at least one carrier in the third frequency band; or the terminal is regarded as performing uplink transmission with one antenna port on at least one carrier in the second frequency band and uplink transmission with one antenna port on at least one carrier in the third frequency band; or the terminal is regarded as performing uplink transmission with two antenna ports on at least one carrier in the third frequency band.

[0084] In solution (2), for situation 1: the terminal is considered to be performing uplink transmission with one antenna port in the first frequency band and performing uplink transmission with one antenna port in the second frequency band, or the terminal is considered to be performing uplink transmission with two antenna ports on at least one carrier in the second frequency band. For situation 2, the terminal may be considered to be performing uplink transmission with one antenna port on at least one carrier in the first frequency band and performing uplink transmission with one antenna port on at least one carrier in the third frequency band; or the terminal may be considered to be performing uplink transmission with one antenna port on at least one carrier in the second frequency band and performing uplink transmission with one antenna port on at least one carrier in the third frequency band; or the terminal may be considered to be performing uplink transmission with two antenna ports on at least one carrier in the third frequency band. The terminal reports the considered uplink transmission port situation to the base station so that the report is made in the terminal's upcoming uplink transmission.

[0085] The present disclosure also provides a base station, Figure 3 Provide a description.

[0086] Figure 3 Figure 1 is a structural diagram of some embodiments of the base station disclosed herein. Figure 3 As shown, the base station 30 of this embodiment includes: a transmitter 310 and a controller 320.

[0087] Transmitter 310 is used for the terminal to send transmitter status configuration information, wherein the frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands. The transmitter status configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching.

[0088] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a frequency band greater than the first of the two frequency bands; 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 a frequency band greater than the second of the two frequency bands.

[0089] In some embodiments, the transmitter state configuration information is used to indicate that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, or to indicate that the terminal is regarded as performing uplink transmission of two antenna ports in at least one carrier in the second frequency band.

[0090] In some embodiments, the transmitter state configuration information is the first uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the first uplinkTxSwitching-DualUL-TxState information element is configured as a first preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, and the first uplinkTxSwitching-DualUL-TxState information element is configured as a second preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the second frequency band.

[0091] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than the first frequency band and the second frequency band of the two frequency bands, 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 third frequency band greater than the two frequency bands.

[0092] In some embodiments, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the first frequency band as performing uplink transmission of one antenna port, and at least one carrier in the third frequency band as performing uplink transmission of one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the second frequency band as performing uplink transmission of one antenna port, and at least one carrier in the third frequency band as performing uplink transmission of one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the third frequency band as performing uplink transmission of two antenna ports.

[0093] In some embodiments, the transmitter state configuration information is the second uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the second uplinkTxSwitching-DualUL-TxState information element is configured as a third preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the first frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, the second uplinkTxSwitching-DualUL-TxState information element is configured as a fourth preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the second frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, and the second uplinkTxSwitching-DualUL-TxState information element is configured as a fifth preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the third frequency band.

[0094] The controller 320 is configured to determine the transmitter state of the terminal after the handover according to the transmitter state configuration information.

[0095] In some embodiments, the base station 30 also includes: a receiver 330, used to receive capability information of the terminal, wherein the capability information includes one or more of the following information: the transmitter switching option supported by the terminal is dual uplink, information for each frequency band greater than two frequency bands, and the terminal supports two sets of transmitters in each frequency band greater than two frequency bands; the transmitter 310 is also used to send transmitter switching configuration information to the terminal, and the transmitter switching configuration information includes one or more of the following information: configuration information for each frequency band greater than two frequency bands, transmitter switching mode configuration information, and transmitter switching option configuration information, wherein the transmitter switching mode configuration information configures the terminal to support two sets of transmitters in each frequency band greater than two frequency bands, and the transmitter switching option configuration information configures the transmitter switching option to be dual uplink.

[0096] The present disclosure also provides a terminal, Figure 4 Provide a description.

[0097] Figure 4 FIG is a structural diagram of some embodiments of the terminal disclosed herein. Figure 4 As shown, the terminal 40 of this embodiment includes: a receiver 410 and a controller 420.

[0098] Receiver 410 is used to receive transmitter status configuration information sent by the base station, wherein the frequency band for uplink transmission of the terminal's transmitter is dynamically switched between frequency bands greater than two frequency bands, and the transmitter status configuration information is used to: after the frequency band for uplink transmission of the terminal's transmitter is switched, if the terminal's transmitter optional state is not unique, indicate the transmitter state of the terminal after switching.

[0099] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a frequency band greater than the first of the two frequency bands; 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 a frequency band greater than the second of the two frequency bands.

[0100] In some embodiments, the transmitter state configuration information is used to indicate that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, or to indicate that the terminal is regarded as performing uplink transmission of two antenna ports in at least one carrier in the second frequency band.

[0101] In some embodiments, the transmitter state configuration information is the first uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the first uplinkTxSwitching-DualUL-TxState information element is configured as a first preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, and the first uplinkTxSwitching-DualUL-TxState information element is configured as a second preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the second frequency band.

[0102] In some embodiments, after the terminal's transmitter switches the frequency band for uplink transmission, situations in which the terminal's transmitter optional state is not unique include: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than the first frequency band and the second frequency band of the two frequency bands, 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 third frequency band greater than the two frequency bands.

[0103] In some embodiments, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the first frequency band as performing uplink transmission of one antenna port, and at least one carrier in the third frequency band as performing uplink transmission of one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the second frequency band as performing uplink transmission of one antenna port, and at least one carrier in the third frequency band as performing uplink transmission of one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the third frequency band as performing uplink transmission of two antenna ports.

[0104] In some embodiments, the transmitter state configuration information is the second uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the second uplinkTxSwitching-DualUL-TxState information element is configured as a third preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the first frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, the second uplinkTxSwitching-DualUL-TxState information element is configured as a fourth preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port on at least one carrier in the second frequency band, and uplink transmission of one antenna port on at least one carrier in the third frequency band, and the second uplinkTxSwitching-DualUL-TxState information element is configured as a fifth preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the third frequency band.

[0105] The controller 420 is configured to determine the transmitter state after switching according to the transmitter state configuration information, and control the transmitter to switch the frequency band of uplink transmission.

[0106] In some embodiments, the terminal 40 may further include two sets of transmitters 430 for uplink transmission. The frequency bands used by the transmitters 430 for uplink transmission are dynamically switched between frequency bands greater than two frequency bands.

[0107] In some embodiments, the transmitter 430 is also used to send capability information to the base station, wherein the capability information includes one or more of the following information: the transmitter switching option supported by the terminal is dual uplink, information for each frequency band greater than two frequency bands, and the terminal supports two sets of transmitters in each frequency band greater than two frequency bands; the receiver 410 is also used to receive transmitter switching configuration information sent by the base station, and the transmitter switching configuration information includes one or more of the following information: configuration information for each frequency band greater than two frequency bands, transmitter switching mode configuration information, and transmitter switching option configuration information, wherein the transmitter switching mode configuration information configures the terminal to support two sets of transmitters in each frequency band greater than two frequency bands, and the transmitter switching option configuration information configures the transmitter switching option to be dual uplink.

[0108] The communication devices (such as base stations or terminals) in the embodiments of the present disclosure can be implemented by various computing devices or computer systems. Figure 5 as well as Figure 6 Provide a description.

[0109] Figure 5 Figure 1 is a structural diagram of some embodiments of the communication device disclosed herein. Figure 5 As shown, the device 50 of this embodiment includes: a memory 510 and a processor 520 coupled to the memory 510, and the processor 520 is configured to execute the transmitter state determination method of the terminal in any of some embodiments of the present disclosure based on instructions stored in the memory 510.

[0110] The memory 510 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, a database, and other programs.

[0111] Figure 6 Figure 1 is a structural diagram of some other embodiments of the communication device disclosed herein. Figure 6 As shown, the device 60 of this embodiment includes: a memory 610 and a processor 620, which are similar to the memory 510 and the processor 520, respectively. It may also include an input / output interface 630, a network interface 640, a storage interface 650, etc. These interfaces 630, 640, 650 and the memory 610 and the processor 620 can be connected, for example, via a bus 660. Among them, the input / output interface 630 provides a connection interface for input / output devices such as a display, mouse, keyboard, and touch screen. The network interface 640 provides a connection interface for various networked devices, such as a database server or a cloud storage server. The storage interface 650 provides a connection interface for external storage devices such as SD cards and USB flash drives.

[0112] The present disclosure also provides a communication system, such as Figure 7As shown, the communication system 7 includes: a base station 30 and a terminal 40 according to any of the aforementioned embodiments.

[0113] Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure 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 magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0114] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. 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 generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0115] 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 an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0116] These computer program instructions can 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, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0117] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A method for determining a transmitter state of a terminal, include: The base station sends transmitter state configuration information to the terminal, wherein the frequency band for uplink transmission of the transmitter of the terminal is dynamically switched between frequency bands greater than two frequency bands, and the transmitter state configuration information is used to: after the frequency band for uplink transmission of the transmitter of the terminal is switched, if the selectable state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching; The base station determines, according to the transmitter state configuration information, a transmitter state of the terminal after switching; Among them, after the transmitter of the terminal performs frequency band switching for uplink transmission, the situation in which the transmitter optional state of the terminal is not unique includes: before the switching, the terminal performs uplink transmission of one antenna port in at least one carrier of at least one frequency band of the first frequency band and the second frequency band that are greater than the two frequency bands, 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 in at least one carrier of the third frequency band that are greater than the two frequency bands; The transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the first frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the second frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the third frequency band as performing uplink transmission with two antenna ports.

2. The method for determining the transmitter status according to claim 1, in, After the transmitter of the terminal switches the frequency band of uplink transmission, the situation where the transmitter of the terminal has a non-unique selectable state also includes: Before the switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of the first frequency band that is greater than the two frequency bands. 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 second frequency band that is greater than the two frequency bands.

3. The method for determining the transmitter status according to claim 2, in, The transmitter state configuration information is used to instruct the terminal to regard uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, or to instruct the terminal to regard uplink transmission of two antenna ports in the at least one carrier in the second frequency band.

4. The method for determining the transmitter state according to claim 3, in, The transmitter state configuration information is the first uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the first uplinkTxSwitching-DualUL-TxState information element is configured as a first preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, and the first uplinkTxSwitching-DualUL-TxState information element is configured as a second preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on the at least one carrier in the second frequency band.

5. The method for determining a transmitter state according to claim 1, in, The transmitter state configuration information is the second uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the second uplinkTxSwitching-DualUL-TxState information element is configured as the third preset value indicating that the terminal regards at least one carrier of the first frequency band as performing uplink transmission of one antenna port, and at least one carrier of the third frequency band as performing uplink transmission of one antenna port, the second uplinkTxSwitching-DualUL-TxState information element is configured as the fourth preset value indicating that the terminal regards at least one carrier of the second frequency band as performing uplink transmission of one antenna port, and at least one carrier of the third frequency band as performing uplink transmission of one antenna port, and the second uplinkTxSwitching-DualUL-TxState information element is configured as the fifth preset value indicating that the terminal regards at least one carrier of the third frequency band as performing uplink transmission of two antenna ports.

6. The method for determining the transmitter status according to claim 1, further comprising: include: The base station receives capability information of the terminal, wherein the capability information includes one or more of the following information: a transmitter switching option supported by the terminal is dual uplink, information of each frequency band greater than two frequency bands, and the terminal supports two sets of transmitters in each frequency band greater than two frequency bands; The base station sends transmitter switching configuration information to the terminal, and the transmitter switching configuration information includes one or more of the following information: configuration information of each frequency band greater than the two frequency bands, transmitter switching mode configuration information, and transmitter switching option configuration information, wherein the transmitter switching mode configuration information configures the terminal to support two sets of transmitters in each frequency band greater than the two frequency bands, and the transmitter switching option configuration information configures the transmitter switching option to dual uplink.

7. A method for determining a transmitter state of a terminal, include: The terminal receives transmitter state configuration information sent by the base station, wherein the frequency band for uplink transmission of the transmitter of the terminal is dynamically switched between frequency bands greater than two frequency bands, and the transmitter state configuration information is used to: after the frequency band for uplink transmission of the transmitter of the terminal is switched, if the selectable state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching; The terminal determines the transmitter state after switching according to the transmitter state configuration information, and switches the frequency band of uplink transmission; Among them, after the transmitter of the terminal performs frequency band switching for uplink transmission, the situation in which the transmitter optional state of the terminal is not unique includes: before the switching, the terminal performs uplink transmission of one antenna port in at least one carrier of at least one frequency band of the first frequency band and the second frequency band that are greater than the two frequency bands, 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 in at least one carrier of the third frequency band that are greater than the two frequency bands; The transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the first frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the second frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the third frequency band as performing uplink transmission with two antenna ports.

8. The method for determining the transmitter status according to claim 7, further comprising: include: The terminal sends capability information to the base station, wherein the capability information includes one or more of the following information: a transmitter switching option supported by the terminal is dual uplink, information of each frequency band greater than two frequency bands, and the terminal supports two sets of transmitters in each frequency band greater than two frequency bands; The terminal receives transmitter switching configuration information sent by the base station, and the transmitter switching configuration information includes one or more of the following information: configuration information of each frequency band greater than the two frequency bands, transmitter switching mode configuration information, and transmitter switching option configuration information, wherein the transmitter switching mode configuration information configures the terminal to support two sets of transmitters in each frequency band greater than the two frequency bands, and the transmitter switching option configuration information configures the transmitter switching option to dual uplink.

9. The method for determining the transmitter state according to claim 7, in, After the transmitter of the terminal switches the frequency band of uplink transmission, the situation where the transmitter of the terminal has a non-unique selectable state also includes: Before the switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of the first frequency band that is greater than the two frequency bands. 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 second frequency band that is greater than the two frequency bands.

10. The method for determining the transmitter state according to claim 9, in, The transmitter state configuration information is used to instruct the terminal to regard uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, or to instruct the terminal to regard uplink transmission of two antenna ports in the at least one carrier in the second frequency band.

11. The method for determining a transmitter state according to claim 10, in, The transmitter state configuration information is the first uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in the radio resource control RRC information element, the first uplinkTxSwitching-DualUL-TxState information element is configured as a first preset value indicating that the terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and uplink transmission of one antenna port in the second frequency band, and the first uplinkTxSwitching-DualUL-TxState information element is configured as a second preset value indicating that the terminal is regarded as performing uplink transmission of two antenna ports on the at least one carrier in the second frequency band.

12. A base station, include: A transmitter, used for a terminal to send transmitter state configuration information, wherein a frequency band for uplink transmission of the transmitter of the terminal is dynamically switched between frequency bands greater than two frequency bands, and the transmitter state configuration information is used to: after the frequency band for uplink transmission of the transmitter of the terminal is switched, if the selectable state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching; A controller, configured to determine a transmitter state of the terminal after switching according to the transmitter state configuration information; The case where the transmitter optional state of the terminal is not unique includes: before switching, the terminal performs uplink transmission of one antenna port in at least one carrier of at least one frequency band of the first frequency band and the second frequency band that are greater than the two frequency bands, 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 in at least one carrier of the third frequency band that are greater than the two frequency bands; The transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the first frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the second frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the third frequency band as performing uplink transmission with two antenna ports.

13. A terminal, include: A receiver, configured to receive transmitter state configuration information sent by a base station, wherein a frequency band for uplink transmission of the transmitter of the terminal is dynamically switched between frequency bands greater than two frequency bands, and the transmitter state configuration information is used to: after the frequency band for uplink transmission of the transmitter of the terminal is switched, if the selectable state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching; A controller, configured to determine a transmitter state after switching according to the transmitter state configuration information, and control the transmitter to switch the frequency band of uplink transmission; The case where the transmitter optional state of the terminal is not unique includes: before switching, the terminal performs uplink transmission of one antenna port in at least one carrier of at least one frequency band of the first frequency band and the second frequency band that are greater than the two frequency bands, 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 in at least one carrier of the third frequency band that are greater than the two frequency bands; The transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the first frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the second frequency band as performing uplink transmission with one antenna port, and at least one carrier in the third frequency band as performing uplink transmission with one antenna port; or, the transmitter state configuration information is used to instruct the terminal to regard at least one carrier in the third frequency band as performing uplink transmission with two antenna ports.

14. A communication device, include: processor; as well as A memory coupled to the processor, used to store instructions, when the instructions are executed by the processor, causes the processor to execute the transmitter state determination method of the terminal according to any one of claims 1-11.

15. A communication system, include: The base station as claimed in claim 12 and the terminal as claimed in claim 13.

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