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

Abstract

The invention relates to a terminal transmitter state determination method and system, a base station and a terminal, and relates to the technical field of communication. The method of the present disclosure comprises: a base station sending transmitter state configuration information to a terminal, in which a frequency band for uplink transmission by a transmitter of the terminal is dynamically switched between frequency bands greater than two frequency bands, the transmitter state configuration information being used for: after the frequency band for uplink transmission by the transmitter of the terminal is switched, sending the transmitter state configuration information to the terminal; under the condition that the selectable state of the transmitter of the terminal is not unique, indicating the state of the transmitter of the terminal after switching; and the base station determines the transmitter state of the switched terminal according to the transmitter state configuration information.

Description

[0001] This application is a divisional application of the invention patent application with the application date of April 28, 2022, application number 202210459901.1, and name “Terminal transmitter state determination method, system, base station and terminal”. Technical Field

[0002] 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

[0003] Super uplink is the terminal uplink transmitter switching (UL Tx switching) technology. The standardization work of the fifth generation mobile communication technology (5th Generation mobile networks, 5th Generation wireless systems or 5th-Generation, 5G) New Radio (New Radio, NR) Release 16 (Release 16, Rel-16) Super Uplink and Rel-17 Super Uplink Enhancement has been completed, which can improve NR uplink capacity and uplink coverage and reduce latency.

[0004] Due to the multi-carrier uplink transmission scheme in Rel-16 and Rel-17, there are restrictions on the transmitter switching mechanism for terminals that support two sets of transmitters, 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 the Radio Resource Control (RRC) signaling. In order to further improve the uplink data rate, spectrum utilization and uplink capacity, terminals that support two sets of transmitters will dynamically switch the frequency bands that support uplink transmission of the two sets of transmitters between three or four uplink frequency bands. Summary of the invention

[0005] The inventors found that when the frequency bands supporting the uplink transmission of two sets of transmitters of the terminal are dynamically switched between three or four uplink frequency bands, in some cases, after the frequency band of the uplink transmission of the terminal's transmitter is switched, the transmitter state is not unique, that is, the base station cannot determine the transmitter state of the terminal after the switch. The transmitter state of the terminal is an important reference indicator for the base station, for example, it can be used to determine whether the switching time of the terminal transmitter switching is required, and the terminal cannot perform uplink transmission during the switching time.

[0006] 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.

[0007] According to some embodiments of the present disclosure, a method for determining a transmitter state of a terminal is provided, comprising: a base station sends transmitter state configuration information to a terminal, 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 optional state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after the switching, wherein the optional state of the transmitter of the terminal is not unique includes: before the switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of a first frequency band 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 a second frequency band greater than the two frequency bands, and 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 performing uplink transmission of one antenna port in the second frequency band, or is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier of the second frequency band; the base station determines the transmitter state of the terminal after the switching according to the transmitter state configuration information.

[0008] 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.

[0009] In some embodiments, the case where the terminal's transmitter optional state is not unique includes: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than a first frequency band and a second frequency band among 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 a third frequency band greater than the two frequency bands.

[0010] 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.

[0011] In some embodiments, the transmitter state configuration information is a second uplink transmitter switching dual uplink transmitter state uplinkTxSwitching-DualUL-TxState information element in a radio resource control RRC information element, the second uplinkTxSwitching-DualUL-TxState information element is configured as a third preset value indicating that the terminal regards 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, the second uplinkTxSwitching-DualUL-TxState information element is configured as a fourth preset value indicating that the terminal regards 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, and the second uplinkTxSwitching-DualUL-TxState information element is configured as a fifth preset value indicating that the terminal regards at least one carrier in the third frequency band as performing uplink transmission of two antenna ports.

[0012] 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 is used to configure the transmitter switching option to be dual uplink.

[0013] According to some other embodiments of the present disclosure, a method for determining a transmitter state of a terminal is provided, comprising: a terminal receives 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 optional state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after the switching, wherein the optional state of the transmitter of the terminal is not unique includes: before the switching, at least one carrier of a first frequency band greater than the two frequency bands of the terminal supports uplink transmission of two antenna ports, 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 a second frequency band greater than the two frequency bands, and 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 performing uplink transmission of one antenna port in the second frequency band, or is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier of the second frequency band; the terminal determines the transmitter state after the switching according to the transmitter state configuration information, and performs frequency band switching for uplink transmission.

[0014] 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.

[0015] According to some further embodiments of the present disclosure, a base station is provided, comprising: a transmitter, used for a terminal to send transmitter state configuration information, 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 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 the switching, wherein the terminal's transmitter optional state is not unique includes: before the switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of a first frequency band greater than the two frequency bands, and 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 a second frequency band greater than the two frequency bands, and 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 performing uplink transmission of one antenna port in the second frequency band, or is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier of the second frequency band; and a controller, used to determine the transmitter state of the terminal after the switching according to the transmitter state configuration information.

[0016] 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, wherein the terminal's transmitter optional state is not unique includes: before switching, the terminal supports two antennas in at least one carrier of the first frequency band greater than the two frequency bands. The uplink transmission of the port, 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 the second frequency band that is larger than the two frequency bands, 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 is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the second frequency band; the controller is used to determine the transmitter state after switching according to the transmitter state configuration information, and control the transmitter to switch the frequency band for uplink transmission.

[0017] 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 a method for determining a transmitter state of a terminal as described in any of the aforementioned embodiments.

[0018] According to some further embodiments of the present disclosure, a communication system is provided, including: a base station of any of the aforementioned embodiments and a terminal of any of the aforementioned embodiments.

[0019] In the present disclosure, 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, 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, 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. It helps the base station to determine whether the subsequent uplink transmission requires the terminal to switch the transmitter, whether the switching time of the terminal transmitter switching is required, so as to determine whether the uplink transmission is interrupted due to the terminal transmitter switching. The scheme disclosed in the present disclosure can further improve the NR uplink data rate, spectrum utilization and uplink capacity.

[0020] 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

[0021] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic flow chart of a method for determining a transmitter state of a terminal according to some embodiments of the present disclosure is shown.

[0023] Figure 2 A schematic flow chart of a method for determining a transmitter state of a terminal according to other embodiments of the present disclosure is shown.

[0024] Figure 3 A schematic structural diagram of a base station according to some embodiments of the present disclosure is shown.

[0025] Figure 4 A schematic diagram showing the structure of a terminal according to some embodiments of the present disclosure.

[0026] Figure 5 A schematic diagram showing the structure of a communication device according to some embodiments of the present disclosure.

[0027] Figure 6 A schematic diagram showing the structure of a communication device according to some other embodiments of the present disclosure.

[0028] Figure 7 A schematic diagram showing the structure of a communication system according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present 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 creative work are within the scope of protection of the present disclosure.

[0030] The present disclosure proposes a method for determining the transmitter status of a terminal. Figures 1-2 Give a description.

[0031] Figure 1 Flow chart of some embodiments of the method for determining the transmitter state of the terminal disclosed in the present invention. Figure 1 As shown, the method of this embodiment includes: steps S102-104.

[0032] In step S102, the base station sends transmitter status configuration information to the terminal, and correspondingly, the terminal receives the transmitter status configuration information sent by the base station.

[0033] The frequency band of the terminal's transmitter for uplink transmission is dynamically switched between frequency bands greater than two frequency bands. For example, the transmitter state configuration information is used to indicate the transmitter state of the terminal after switching when the terminal's transmitter performs uplink transmission frequency band switching and the terminal's transmitter selectable state is not unique.

[0034] The following first describes the status of the terminal's transmitter between three or four frequency bands and possible situations of the uplink transmission antenna port in conjunction with Table 1 and Table 2.

[0035] Table 1 shows the possible states of the terminal transmitter between the three frequency bands and the uplink transmission antenna port. If the transmitter state of the current uplink transmission is different from that of the previous uplink transmission, the terminal needs to switch the transmitter, and a switching time is required for the terminal transmitter switching. During the switching time, the terminal cannot perform uplink transmission.

[0036] Table 1

[0037]

[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 of two antenna ports in frequency band A, or perform uplink transmission of one antenna port in frequency band A.

[0040] Table 2 shows the possible states of the terminal transmitter between the four frequency bands and the uplink transmission antenna port. If the transmitter state of the current uplink transmission is different from that of the previous uplink transmission, the terminal needs to switch the transmitter, and a switching time is required for the terminal transmitter switching. During the switching time, the terminal cannot perform uplink transmission.

[0041] Table 2

[0042]

[0043]

[0044] For example, situation 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. In this case, 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, the case where the terminal's transmitter selectable state is not unique includes: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a first frequency band greater than 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 second frequency band greater than the two frequency bands.

[0046] Before the switch, the terminal supports uplink transmission of two antenna ports on at least one carrier of the first frequency band greater than two frequency bands, and the corresponding transmitter state can be 2T for the first frequency band greater than two frequency bands (such as 3 or 4 frequency bands), and 0T for the other frequency bands. After the switch, 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 greater than two frequency bands, and the corresponding optional states of the transmitter may include: state 1: first frequency band 1T (i.e., one set of transmitters can perform uplink transmission in the first frequency band), second frequency band 1T, and other frequency bands 0T; or state 2: first frequency band 0T, second frequency band 2T, and other frequency bands 0T.

[0047] For example, as shown in Table 1, before the switching, it is case 1, and at least one carrier of the terminal in the first frequency band (for example, frequency band A) supports uplink transmission of two antenna ports. After the switching, the terminal does not perform uplink transmission on any carrier of frequency band A, and performs uplink transmission of one antenna port on at least one carrier of a frequency band greater than the second frequency band of the two frequency bands (for example, 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 of uplink transmission of the two sets of transmitters to frequency band B. Case 4 means that the terminal switches the frequency band of uplink transmission of one set of the two transmitters to frequency band B, and the frequency band of uplink transmission of the other set of transmitters remains in frequency band A. Case 6 means that the terminal switches the frequency band of uplink transmission of one set of the two transmitters to frequency band B, and the frequency band of uplink transmission of the other set of transmitters is switched to frequency band C. The transmitter states in cases 2, 4, and 6 are different, but because the base station determines the transmitter state of the terminal by the antenna port state 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 switching, it is case 1, and at least one carrier of the terminal in the first frequency band (for example, frequency band A) supports uplink transmission of two antenna ports. After the switching, the terminal does not perform uplink transmission on any carrier of frequency band A, and performs uplink transmission of one antenna port on at least one carrier of the second frequency band (for example, frequency band B) greater than the second frequency band of the two frequency bands, which can correspond to cases 2 (state 2), 5 (state 1), 8, and 9. Case 2 means that the terminal switches the frequency band of uplink transmission of two sets of transmitters to frequency band B. Case 5 means that the terminal switches the frequency band of uplink transmission of one set of the two transmitters to frequency band B, and the frequency band of uplink transmission of the other set of transmitters remains in frequency band A. Case 8 means that the terminal switches the frequency band of uplink transmission of one set of the two transmitters to frequency band B, and the frequency band of uplink transmission of the other set of transmitters to frequency band C. Case 9 means that the terminal switches the frequency band of uplink transmission of one set of the two transmitters to frequency band B, and the frequency band of uplink transmission of the other set of transmitters to frequency band D. The transmitter states in situations 2, 5, 8, and 9 are different, but because the base station determines the transmitter state of the terminal by the antenna port state of the uplink transmission, the base station cannot determine which of situations 2, 5, 8, and 9 the transmitter state corresponds to after the frequency band of the terminal transmitter switches for uplink transmission.

[0049] For a terminal, if before switching, the terminal supports uplink transmission of two antenna ports in at least one carrier greater than the first frequency band of the two frequency bands, and then receives uplink scheduling information sent by the base station, instructing the terminal to perform uplink transmission of one antenna port in the second frequency band, then the optional state of the terminal's transmitter is not unique. For example, the terminal in Table 1 can be switched according to one of the situations 2, 4, and 6, and the terminal in Table 2 can be switched according to one of the situations 2, 5, 8, and 9. If the terminal selects any one of the situations for switching, the base station cannot determine the transmitter state of the terminal. The base station determines the transmitter state of the terminal to help determine whether the subsequent uplink transmission requires the terminal to switch the transmitter, whether the switching time for the terminal transmitter switching is required, and the terminal cannot perform uplink transmission during the switching time.

[0050] After the frequency band of the transmitter of the above-mentioned terminal is switched for uplink transmission, if 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 in the first frequency band and uplink transmission of one antenna port in the second frequency band, or, it is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports in at least one carrier of the second frequency band.

[0051] The terminal is regarded as performing uplink transmission of one antenna port in the first frequency band and performing uplink transmission of one antenna port in the second frequency band, corresponding to transmitter state 1, and the terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier in the second frequency band, corresponding to transmitter state 2. In the aforementioned examples in Table 1 and Table 2, although the optional states of the terminal transmitter are different after switching, that is, the aforementioned examples in Table 1 and Table 2 can correspond to different situations after switching, state 1 and state 2 are common optional states of the aforementioned examples in Table 1 and Table 2. Through the aforementioned embodiments, a general 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 ResourceControl, 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 of one antenna port in the first frequency band and uplink transmission of 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 of 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 shall be 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, otherwise, the terminal shall be regarded as performing uplink transmission of 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 situation 1 before switching and can be situation 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, situation 1 can be switched to situation 2 or 4 or 6. The terminal switches to situation 4 according to 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 frequency band B, and the frequency band for uplink transmission of the other set of transmitters is retained in frequency 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 situation 1 before switching and can be situation 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, situation 1 can be switched to situation 2 or 5 or 8 or 9. The terminal switches to situation 5 according to 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 frequency band B, and the frequency band for uplink transmission of the other set of transmitters is retained in frequency band A.

[0055] In some embodiments, the case where the terminal's transmitter optional state is not unique includes: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than a first frequency band and a second frequency band among 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 a third frequency band greater than the two frequency bands.

[0056] Before the switching, the terminal performs uplink transmission of one antenna port on at least one carrier of at least one frequency band of the first frequency band and the second frequency band that are greater than two frequency bands, and 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 3 or 4 frequency bands), and 0T in the other frequency bands. After the switching, the terminal does not perform uplink transmission in the first frequency band and the second frequency band, and performs uplink transmission of one antenna port on at least one carrier of the third frequency band that are greater than the two frequency bands, and the corresponding transmitter state may include: state 1: second frequency band 1T, third frequency band 1T, other frequency bands 0T; or state 2: first frequency band 1T, third frequency band 1T, other frequency bands 0T; or state 3: third frequency band 2T, other frequency bands 0T.

[0057] For example, as shown in Table 1, before the switching, it is case 4, and the terminal performs uplink transmission (1P+1P+0P) of one antenna port in the first frequency band (frequency band A) and the second frequency band (frequency band B). After the switching, the terminal does not perform uplink transmission in frequency band A and frequency band B, and performs uplink transmission of one antenna port in at least one carrier that is greater than the third frequency band (for example, frequency band C) of the two frequency bands, which can correspond to cases 3 (state 3), 5 (state 2), and 6 (state 1). Case 3 means that the terminal switches the frequency bands for uplink transmission of two sets of transmitters to frequency band C, and case 5 means that the terminal switches the frequency band for uplink transmission of one set of transmitters from frequency band B to frequency band C, and the frequency band for uplink transmission of the other set of transmitters is retained in frequency band A, and case 6 means that the terminal switches the frequency band for uplink transmission of one set of transmitters from frequency band A to frequency band C, and the frequency band for uplink transmission of the other set of transmitters is retained in frequency band B. The transmitter states in cases 3, 5, and 6 are different, but because the base station determines the transmitter state of the terminal by the antenna port state 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, it is case 5, and the terminal performs uplink transmission (1P+1P+0P+0P) of one antenna port in the first frequency band (for example, frequency band A) and the second frequency band (for example, frequency band B) respectively. After switching, the terminal does not perform uplink transmission in frequency band A and frequency band B, and performs uplink transmission of one antenna port in at least one carrier of a third frequency band (for example, frequency band C) greater than the two frequency bands, which may correspond to cases 3 (state 3), 6 (state 2), 8 (state 1), and 10. Case 3 means that the terminal switches the frequency bands for uplink transmission of two sets of transmitters to frequency band C, case 6 means that the terminal switches the frequency band for uplink transmission of one set of transmitters from frequency band B to frequency band C, and the frequency band for uplink transmission of the other set of transmitters remains in frequency band A, case 8 means that the terminal switches the frequency band for uplink transmission of one set of transmitters from frequency band A to frequency band C, and the frequency band for uplink transmission of the other set of transmitters remains in frequency band B, and case 10 means that the terminal switches the frequency bands for uplink transmission of the two sets of transmitters from frequency bands A and B to frequency bands C and frequency band D. The states of the transmitters in cases 3, 6, 8, and 10 are different, but because the base station determines the transmitter state of the terminal through the antenna port state of uplink transmission, the base station cannot determine whether the transmitter state corresponding to case 3, 6, 8, or 10 corresponds to the transmitter state corresponding to case 3, 6, 8, or 10 after the frequency band switching of the terminal's transmitter for uplink transmission.

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

[0060] Based on the above-mentioned situation that the transmitter optional state of the terminal is not unique after the frequency band switching of the transmitter of the terminal is performed for uplink transmission, 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 regarded as performing uplink transmission of one antenna port on at least one carrier of the first frequency band, and performing uplink transmission of one antenna port on at least one carrier of the third frequency band, corresponding to transmitter state 2. The terminal is regarded as performing uplink transmission of one antenna port on at least one carrier of the second frequency band, and performing uplink transmission of one antenna port on at least one carrier of the third frequency band, corresponding to transmitter state 1. The terminal is regarded as performing uplink transmission of two antenna ports on at least one carrier of the third frequency band, corresponding to transmitter state 3. In the aforementioned examples of Table 1 and Table 2, although the optional states of the terminal transmitter are different after switching, that is, the aforementioned examples of Table 1 and Table 2 can correspond to different situations after switching, but state 1, state 2, and state 3 are common optional states of the aforementioned examples of Table 1 and Table 2. Through the aforementioned embodiments, a general transmitter state determination method can be used for the dynamic switching of the frequency band for uplink transmission of the terminal transmitter between frequency bands greater than two frequency bands.

[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 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 a 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 a 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.

[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 be 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. If the terminal receives an RRC information element in which uplinkTxSwitching-DualUL-TxState is configured as the fourth preset value, the terminal should be 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. If the terminal receives an RRC information element in which uplinkTxSwitching-DualUL-TxState is configured as the fifth preset value, the terminal should be regarded 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 of the terminal for uplink transmission in the above Table 1 is situation 4 before switching and can be situation 3, 5, or 6 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 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 is retained in band A.

[0065] For example, in the scenario where the frequency band of the transmitter of the terminal for uplink transmission in the above Table 2 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 is retained 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 transmitter state of the terminal after switching according to the transmitter state configuration information. It can then determine whether the subsequent uplink transmission requires the terminal to switch the transmitter, whether the switching time for the terminal transmitter switching is required, etc. When the transmitter optional state of the terminal is not unique, the terminal can switch the frequency band of the uplink transmission according to 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, 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, 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. It helps the base station to determine whether the subsequent uplink transmission requires the terminal to switch the transmitter, and whether the switching time of the terminal transmitter switching is required, so as to determine whether the uplink transmission is interrupted due to the terminal transmitter switching. The scheme of the above embodiment can further improve the NR uplink data rate, spectrum utilization and uplink capacity.

[0069] Combine the following Figure 2 Other embodiments of the method for determining the transmitter state of a terminal disclosed in the present invention are described.

[0070] Figure 2 Flow charts of other embodiments of the method for determining the transmitter state of a terminal disclosed in the present invention. Figure 2As shown, the method of this embodiment includes: steps S202-208.

[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, and 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 is used to configure 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 uplink transmission by two sets of transmitters 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 (DualUL), and supports the ability of two sets of transmitters to dynamically switch between more than two uplink frequency bands. The base station configures the mode of uplink transmitter switching of the terminal to support 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 (DualUL), and configures more than two frequency bands that the transmitter can switch, such as 3 or 4 frequency bands. At this time, the scenario that can be used for multi-carrier uplink transmission 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 herein.

[0079] In each of the above embodiments, the base station sends the transmitter state configuration information to the terminal for indicating the transmitter state of the terminal after the switching when the transmitter of the terminal switches the frequency band for uplink transmission and the transmitter selectable state of the terminal is not unique. For the case where the transmitter selectable state of the terminal is not unique after the transmitter of the terminal switches the frequency band for uplink transmission, the following method can also be used to determine the transmitter state of the terminal.

[0080] Solution (1): The protocol stipulates that the state of the terminal's transmitter after switching is preset when the frequency band of the terminal's transmitter for uplink transmission is switched and the terminal's transmitter selectable state is not unique.

[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 selectable 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 where the optional state of the terminal's transmitter 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. Please refer to the above embodiments, which will not be repeated here.

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

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

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

[0086] Figure 3 FIG. 1 is a structural diagram of some embodiments of the base station disclosed in the present invention. 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, 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.

[0088] In some embodiments, the case where the terminal's transmitter selectable state is not unique includes: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a first frequency band greater than 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 second frequency band greater than 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 performing 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 on 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, the case where the terminal's transmitter optional state is not unique includes: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than a first frequency band and a second frequency band among 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 a third frequency band greater than the two frequency bands.

[0092] 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.

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

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

[0095] In some embodiments, the base station 30 also includes: a receiver 330, which is 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 dual uplink.

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

[0097] Figure 4 FIG. 1 is a structural diagram of some embodiments of the terminal disclosed in the present invention. 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 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.

[0099] In some embodiments, the case where the terminal's transmitter selectable state is not unique includes: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier in a first frequency band greater than 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 second frequency band greater than 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 performing 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 on 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, the case where the terminal's transmitter optional state is not unique includes: before switching, the terminal performs uplink transmission of one antenna port on at least one carrier in at least one frequency band greater than a first frequency band and a second frequency band among 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 a third frequency band greater than the two frequency bands.

[0103] 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.

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

[0105] The controller 420 is used 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 for uplink transmission of the transmitters 430 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 dual uplink.

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

[0109] Figure 5 FIG. 1 is a structural diagram of some embodiments of the communication device disclosed in the present invention. 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 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 FIG. 1 is a structural diagram of some other embodiments of the communication device disclosed in the present invention. 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 can also include an input and 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, through a bus 660. Among them, the input and output interface 630 provides a connection interface for input and output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networked devices, for example, it can be connected to 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 the 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. Moreover, 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 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 generate 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 capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A 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 operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified 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 substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A method for determining a transmitter state of a terminal, comprising: 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 optional state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching, wherein the situation that the optional state of the transmitter of the terminal is not unique includes: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of a first frequency band greater than the two frequency bands, and after 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 a second frequency band greater than the two frequency bands, and 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 performing uplink transmission of one antenna port in the second frequency band, or is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on the at least one carrier of the second frequency band; The base station determines the transmitter state of the terminal after the handover according to the transmitter state configuration information.

2. The method for determining the transmitter status according to claim 1, wherein: 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.

3. The method for determining the transmitter status according to claim 1, wherein: The case where the transmitter selectable state of the terminal is not unique also includes: Before the switching, the terminal performs uplink transmission of one antenna port in at least one carrier of at least one frequency band in 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.

4. The method for determining the transmitter status according to claim 3, wherein: The transmitter state configuration information is used to instruct the terminal to perform uplink transmission of one antenna port on at least one carrier in the first frequency band and to perform uplink transmission of one antenna port on at least one carrier in the third frequency band; Alternatively, the transmitter state configuration information is used to instruct the terminal to perform uplink transmission of one antenna port on at least one carrier in the second frequency band, and to perform uplink transmission of one antenna port on at least one carrier in the third frequency band; Alternatively, 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.

5. The method for determining the transmitter status according to claim 4, wherein: 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 state according to claim 1, further comprising: 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, comprising: A terminal receives 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 optional state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching, wherein the situation that the optional state of the transmitter of the terminal is not unique includes: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of a first frequency band greater than the two frequency bands, and after 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 a second frequency band greater than the two frequency bands, and 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 performing uplink transmission of one antenna port in the second frequency band, or is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on the at least one carrier of the second frequency band; The terminal determines the transmitter state after switching according to the transmitter state configuration information, and performs frequency band switching of uplink transmission.

8. The method for determining the transmitter state according to claim 7, further comprising: 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 status according to claim 7, wherein: 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.

10. A base station, comprising: 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 optional state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching, wherein the optional state of the transmitter of the terminal is not unique includes: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of a first frequency band greater than the two frequency bands, and after 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 a second frequency band greater than the two frequency bands, and 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 performing uplink transmission of one antenna port in the second frequency band, or is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on the at least one carrier of the second frequency band; The controller is used to determine the transmitter state of the terminal after switching according to the transmitter state configuration information.

11. A terminal, comprising: 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 optional state of the transmitter of the terminal is not unique, indicate the transmitter state of the terminal after switching, wherein the optional state of the transmitter of the terminal is not unique includes: before switching, the terminal supports uplink transmission of two antenna ports on at least one carrier of a first frequency band greater than the two frequency bands, and after 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 a second frequency band greater than the two frequency bands, and 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 performing uplink transmission of one antenna port in the second frequency band, or is used to indicate that the terminal is regarded as performing uplink transmission of two antenna ports on the at least one carrier of the second frequency band; The controller is used 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.

12. A communication device, comprising: 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 1-9.

13. A communication system comprising: The base station as claimed in claim 10 and the terminal as claimed in claim 11.

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