Uplink transmitter switching method and related device

Abstract

The switching method of the uplink transmitter includes: determining an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device; the uplink transmitter of the terminal device dynamically switches a frequency band in which uplink transmission is located between more than two frequency bands; when the antenna port state of the current uplink transmission of the terminal device and the antenna port state of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for the uplink transmitter to perform frequency band switching of the uplink transmission, and canceling reception of uplink information within the switching interval. The uplink transmitter realizes dynamic switching between more than two uplink frequency bands.

Description

[Technical Field]

[0001] (Cross-reference of related applications) This disclosure is based on and claims priority to a Chinese patent application having application number 202210471294.0, filed on April 28, 2022, and entitled "Uplink transmitter switching method, network device, terminal device, and communication system," the entire contents of which are hereby incorporated by reference.

[0002] The present disclosure relates to the field of communications technology, and in particular to an uplink transmitter switching method, a network device, a terminal device, a communication system, an electronic device, and a computer-readable storage medium. [Background technology]

[0003] In the 5th Generation Mobile Communication Technology (5G), super uplink technology, i.e., the uplink transmitter switching (ULTx Switching) technology of terminal devices, has completed standardization work on the enhancement of 5GNR (New Radio) Release 16 (Rel-16) super uplink and Rel-17 super uplink.

[0004] Rel-16 and Rel-17 multi-carrier uplink transmission supports a terminal device with two sets of transmitters to dynamically switch between two uplink frequency bands configured by Radio Resource Control (RRC) signaling.

[0005] Currently, terminal devices that support two sets of transmitters do not support dynamic switching of the transmitters between more than two uplink frequency bands. Summary of the Invention

[0006] The present disclosure provides an uplink transmitter switching method, a network device, a terminal device, a communication system, an electronic device, and a computer-readable storage medium, which at least to some extent solve the problem that an existing terminal device supporting two sets of transmitters does not support dynamic transmitter switching in more than two uplink frequency bands.

[0007] One aspect of the present disclosure provides an uplink transmitter switching method applied to a network device side, comprising: Determining an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, wherein an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between more than two frequency bands; When the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to perform frequency band switching of the uplink transmission; and canceling reception of uplink information within the switching interval.

[0008] In one embodiment of the present disclosure, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, the method further comprises: Sending uplink transmitter switching option setting information to the terminal device, where the uplink transmitter switching option setting information sets a switching option of the uplink transmitter to uplink switching or dual uplink.

[0009] In one embodiment of the present disclosure, when the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the terminal device for current uplink transmission is uplink transmission of one port on at least one carrier in a first frequency band and uplink transmission of one port on at least one carrier in a second frequency band, and the first frequency band and the second frequency band are different frequency bands among the two or more larger frequency bands; and the antenna port state of the previous uplink transmission of the terminal device is the uplink transmission of one port on at least one carrier of one frequency band among the two or more frequency bands, and the terminal device supports the uplink transmission of two ports in the one frequency band; Or, the antenna port status of the previous uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of one frequency band among the two or more frequency bands.

[0010] In one embodiment of the present disclosure, when the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier in a first frequency band and an uplink transmission of one port on at least one carrier in a second frequency band, at least one of the first frequency band and the second frequency band is different from the target frequency band, and the target frequency band, the first frequency band, and the second frequency band are frequency bands among the two or more frequency bands; Or, the antenna port state of the previous uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in the target frequency band, and the terminal device does not support uplink transmission of two ports in the target frequency band.

[0011] In one embodiment of the present disclosure, when the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: An antenna port state of a previous uplink transmission of the terminal device is an uplink transmission of one port on at least one carrier of at least one frequency band among a first frequency band and a second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and the current uplink transmission antenna port status of the terminal device is to perform uplink transmission of one port on at least one carrier in a third frequency band, and not to perform uplink transmission on the first frequency band and the second frequency band; The first frequency band, the second frequency band, and the third frequency band are different frequency bands among the two larger frequency bands.

[0012] In one embodiment of the present disclosure, when the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: An antenna port state of a previous uplink transmission of the terminal device is an uplink transmission of one port on at least one carrier of at least one frequency band among a first frequency band and a second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and a current antenna port state of uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in a first target frequency band and uplink transmission of one port on at least one carrier in a second target frequency band, and at least one frequency band among the first target frequency band and the second target frequency band is a frequency band different from the first frequency band and the second frequency band; The first frequency band, the second frequency band, the first target frequency band, and the second target frequency band are frequency bands among the two larger frequency bands.

[0013] In one embodiment of the present disclosure, when the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the previous uplink transmission of the terminal device is one port or two ports uplink transmission on at least one carrier of the first frequency band; The target frequency band and the first frequency band are different frequency bands among the two larger frequency bands.

[0014] In one embodiment of the present disclosure, when the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is the uplink transmission of one port on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is one-port uplink transmission on at least one carrier in a first frequency band, and the terminal device supports two-port uplink transmission in the first frequency band; Or, the antenna port status of the previous uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the first frequency band; The target frequency band and the first frequency band are different frequency bands among the two larger frequency bands.

[0015] In one embodiment of the present disclosure, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, the method further comprises: determining an initial state of an antenna port for uplink transmission of the terminal device; the initial state is to support uplink transmission of two ports on at least one carrier in one preset frequency band, the one preset frequency band being a frequency band among the two or more frequency bands; Alternatively, the initial state is to support uplink transmission of one port in each of two preset frequency bands, and the two preset frequency bands are frequency bands among the two larger frequency bands.

[0016] In one embodiment of the present disclosure, the one preset frequency band or the two preset frequency bands are preset in a protocol or configured in the terminal device via the network device.

[0017] In one embodiment of the present disclosure, when the uplink transmitter switching option setting information sets the uplink transmitter switching option to uplink switching, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is one port or two ports uplink transmission on at least one carrier of the target frequency band; and the antenna port state of the previous uplink transmission of the terminal device is one port or two ports uplink transmission on at least one carrier of the first frequency band; The target frequency band and the first frequency band are different frequency bands among the two larger frequency bands.

[0018] In one embodiment of the present disclosure, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, the method further comprises: determining an initial state of an antenna port for uplink transmission of the terminal device, the initial state being to support uplink transmission of two ports on at least one carrier of a preset frequency band, the preset frequency band being a frequency band among the two or more larger frequency bands;

[0019] In one embodiment of the present disclosure, the pre-set frequency band is pre-set in a protocol or configured in the terminal device via the network device.

[0020] In one embodiment of the present disclosure, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, the method further comprises: receiving capability information of the terminal device, the capability information including at least one of: an uplink transmitter switching option supported by the terminal device being dual uplink or uplink switching; information on the greater than two frequency bands; and information that the terminal device supports two sets of uplink transmitters for each frequency band of the greater than two frequency bands; Send uplink transmitter switching setting information to the terminal device, where the uplink transmitter switching setting information includes at least one of setting information for the greater than two frequency bands and setting information for a transmitter switching mode, and the setting information for the transmitter switching mode includes configuring the terminal device to support two sets of uplink transmitters for each frequency band of the greater than two frequency bands.

[0021] In one embodiment of the present disclosure, the method further includes: if an antenna port state of a current uplink transmission of the terminal device and an antenna port state of a previous uplink transmission of the terminal device do not satisfy the predetermined condition, there is no need to set the switching interval.

[0022] Another aspect of the present disclosure provides an uplink transmitter switching method applied to a terminal device side, comprising: Determining an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, wherein an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between more than two frequency bands; If the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for an uplink transmitter to switch the frequency band of the uplink transmission; and canceling transmission of uplink information within the switching interval.

[0023] Another aspect of the present disclosure provides a network device including a first port state determination module, a first switching interval determination module, and a first execution module; The first port state determination module is configured to determine an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, where a frequency band in which an uplink transmitter of the terminal device is located is dynamically switched between more than two frequency bands; The first switching interval determination module is configured to determine, when an antenna port status of a current uplink transmission of the terminal device and an antenna port status of a previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to perform frequency band switching of the uplink transmission; The first execution module is configured to cancel reception of uplink information within the switching interval.

[0024] Another aspect of the present disclosure provides a terminal device, including a second port state determination module, a second switching interval determination module, and a second execution module; The second port state determination module is configured to determine an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, where a frequency band in which an uplink transmitter of the terminal device is located is dynamically switched between more than two frequency bands; the second switching interval determination module is configured to determine, when the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, that there is a switching interval for the uplink transmitter to switch the frequency band of the uplink transmission; The second execution module is configured to cancel transmission of uplink information within the switching interval.

[0025] Another aspect of the present disclosure provides a communication system including a network device and a terminal device, The network device determines an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, wherein a frequency band in which an uplink transmitter of the terminal device is located is dynamically switched between two or more frequency bands; When an antenna port status of the current uplink transmission of the terminal device and an antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to switch a frequency band of the uplink transmission; configured to cancel reception of uplink information within the switching interval; The terminal device determines an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, where a frequency band in which an uplink transmitter of the terminal device is located is dynamically switched between two or more frequency bands; a switching interval exists for an uplink transmitter to switch a frequency band for uplink transmission when the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition; The switch is configured to cancel transmission of uplink information within the switching interval.

[0026] Another aspect of the present disclosure provides an electronic device including a processor and a memory for storing processor executable instructions, the processor executing the executable instructions to perform the above-mentioned uplink transmitter switching method.

[0027] Another aspect of the present disclosure provides a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the above-described uplink transmitter switching method.

[0028] An embodiment of the present disclosure provides a computer program product including a computer program that, when executed by a processor, implements the above-described uplink transmitter switching method.

[0029] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. [Brief explanation of the drawings]

[0030] The drawings herein are incorporated into the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the drawings in the following description are merely some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without paying creative labor. [Figure 1] 1 illustrates an architecture diagram of a communication system in an embodiment of the present disclosure. [Figure 2] 1 shows a flowchart of an uplink transmitter switching method in an embodiment of the present disclosure. [Figure 3] 10 shows a flowchart of an uplink transmitter switching method in another embodiment of the present disclosure. [Figure 4] 1 illustrates a flowchart of a method for switching an uplink transmitter in uplink switching according to an embodiment of the present disclosure. [Figure 5] 3 shows a flowchart of a method for switching uplink transmitters in dual uplink in an embodiment of the present disclosure; [Figure 6] 10 shows a flowchart of a method for switching an uplink transmitter in dual uplink in another embodiment of the present disclosure; [Figure 7] 10 shows a flowchart of a method for switching an uplink transmitter in dual uplink in another embodiment of the present disclosure; [Figure 8] 10 shows a flowchart of a method for switching an uplink transmitter in dual uplink in another embodiment of the present disclosure; [Figure 9] 10 shows a flowchart of a method for switching an uplink transmitter in dual uplink in another embodiment of the present disclosure; [Figure 10] 10 shows a flowchart of a method for switching an uplink transmitter in dual uplink in another embodiment of the present disclosure; [Figure 11] 10 shows a flowchart of an uplink transmitter switching method in another embodiment of the present disclosure. [Figure 12]10 shows a flowchart of an uplink transmitter switching method in another embodiment of the present disclosure. [Figure 13] FIG. 2 is a schematic diagram of a network device according to an embodiment of the present disclosure. [Figure 14] FIG. 2 is a schematic diagram of a terminal device according to an embodiment of the present disclosure. [Figure 15] 1 is a schematic diagram of a communication system according to an embodiment of the present disclosure. [Figure 16] FIG. 1 is a block diagram illustrating a configuration of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0031] Next, exemplary embodiments will be described in more detail with reference to the drawings. However, exemplary embodiments may be embodied in various forms and should not be construed as being limited to the examples set forth herein. Rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0032] Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings indicate the same or similar parts, and redundant description will be omitted. Some of the block diagrams shown in the drawings are functional entities that do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor and / or microcontroller devices.

[0033] FIG. 1 shows a schematic diagram of an exemplary communication system architecture of an uplink transmitter switching method applicable to embodiments of the present disclosure.

[0034] As shown in FIG. 1, the communication system may include a terminal device 101, a network, and a core network.

[0035] The network is a medium for providing a communication link between the terminal device 101 and the core network, and may be a wired network or a wireless network.

[0036] Optionally, the wireless or wired network described above uses standard communication technologies and / or protocols. The network is typically the Internet, but may be any network, including, but not limited to, any combination of a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a mobile, wired or wireless network, a private network, or a virtual private network. In some embodiments, technologies and / or formats including HyperText Mark-up Language (HTML), Extensible Markup Language (XML), etc. are used to represent numbers exchanged over the network. Furthermore, all or some links may be encrypted using conventional encryption technologies such as Secure Socket Layer (SSL), Transport Layer Security (TLS), Virtual Private Network (VPN), Internet Protocol Security (IPsec), etc. In other embodiments, customized and / or proprietary communication technologies may be used in place of or in addition to the above communication technologies.

[0037] The communication system may employ communication technologies such as Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), and Carrier Sense Multiple Access with Collision Avoidance (CSMA). Depending on factors such as network capacity, speed, and delay, networks can be divided into 2G (generation) networks, 3G networks, 4G networks, and future evolution networks such as 5G networks, where 5G networks are abbreviated as networks or systems. In the present disclosure, the network includes network devices 102, which may be, for example, radio access network nodes, and the core network includes core network devices. Here, the radio access network node may be a base station. The network can provide network services to the terminal device 101 via the network device 102.

[0038] The terminal device 101 may be referred to as user equipment, a mobile terminal, a terminal, a mobile station, etc., and is a device that provides voice and / or numerical connectivity to a user, and the terminal device 101 may be a variety of electronic devices including, but not limited to, a smartphone, a tablet, a laptop computer, a desktop computer, a wearable device, an augmented reality device, a virtual reality device, etc.

[0039] In some embodiments, the application clients installed on different terminal devices 101 are the same or are the same type of application clients based on different operating systems. Based on the differences in terminal platforms, the specific forms of the application clients may be different, for example, the application client may be a mobile phone client, a PC client, etc.

[0040] To further improve the uplink rate, spectrum utilization, and uplink capacity, in the present disclosure, the terminal device 101 supports dynamic switching of the two uplink transmitters between more than two frequency bands, such as switching between three or four frequency bands. The uplink transmitter of the terminal device 101 dynamically switches between more than two frequency bands, i.e., the frequency band in which the uplink transmission of the uplink transmitter is located dynamically switches between more than two frequency bands. In FIG. 1, the terminal device 101 includes an uplink transmitter 1 and an uplink transmitter 2, and both the uplink transmitter 1 and the uplink transmitter 2 can switch between the first to fourth frequency bands.

[0041] For example, uplink transmitter 1 receives a signal source, and outputs a first frequency band signal after frequency multiplication, mixing, filtering, amplification, and other processes. Uplink transmitter 2 receives a signal source, and outputs a first frequency band signal after frequency multiplication, mixing, filtering, amplification, and other processes. The two first frequency band signals generated by uplink transmitter 1 and uplink transmitter 2 can be used for uplink transmission on one antenna port or two antenna ports. Antenna ports are also called ports. Each frequency band can include one or more carriers. Uplink transmission can be performed on one or more carriers in the first frequency band.

[0042] Illustratively, when uplink transmitter 1 outputs a first frequency band signal and uplink transmitter 2 outputs a second frequency band signal, the first frequency band signal is used to perform uplink transmission of one port on one or more carriers in the first frequency band, and the second frequency band signal is used to perform uplink transmission of one port on one or more carriers in the second frequency band.

[0043] Because a switching interval is required for the uplink transmitter to switch between different frequency bands, and the terminal device 101 cannot perform uplink transmission within the switching interval, it is necessary to know when the uplink transmitter of the terminal device 101 switches and further determine the switching interval.

[0044] Based on this, the technical solution of an embodiment of the present application is a software program applied to a computer, relating to technologies such as communications, in which the frequency band where the uplink transmitter of a terminal device is located can be dynamically switched between more than two frequency bands, the antenna port state of the current uplink transmission and the antenna port state of the previous uplink transmission meet a predetermined condition, the uplink transmitter of the terminal device determines to switch the uplink frequency band, and there is a switching interval during which uplink transmission cannot be performed due to the transmitter switching, so that the two sets of transmitters of the terminal device can dynamically switch between more than two uplink frequency bands, ensuring the receiving performance of uplink transmission and improving the NR uplink speed, spectrum utilization rate and uplink capacity. Specifically, the following embodiment is described.

[0045] Embodiments of the present disclosure provide an uplink transmitter switching method that can be performed by any system with computing power.

[0046] 2 shows a flowchart of an uplink transmitter switching method in an embodiment of the present disclosure. As shown in FIG. 2, an embodiment of the present disclosure provides an uplink transmitter switching method applied to a network device side, which includes the following steps:

[0047] In S202, an antenna port state of a current uplink transmission of the terminal device and an antenna port state of a previous uplink transmission of the terminal device are determined, and an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between two or more frequency bands.

[0048] In this embodiment, the uplink transmitter of the terminal device has the capability to dynamically switch the frequency band in which the uplink transmission is present between two or more frequency bands, and this capability can be transmitted from the terminal device to the network device via capability information.

[0049] Since the network device cannot directly determine whether the uplink transmitter will perform a frequency band switch, the present disclosure relies on the change in antenna port status between the current and previous uplink transmissions to determine the timing of the uplink transmitter's frequency band switch.

[0050] In S204, if the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, there exists a switching interval for the uplink transmitter to perform frequency band switching of the uplink transmission.

[0051] In this embodiment, the predetermined condition is the terminal device's pre-stored antenna port status for current uplink transmission and the antenna port status for previous uplink transmission, and is used to compare the antenna port status for uplink transmission with the pre-stored antenna port status to determine the timing of frequency band switching for the uplink transmitter. If the terminal device's current uplink transmission antenna port status and the antenna port status for previous uplink transmission satisfy the predetermined condition, the uplink transmitter initiates frequency band switching, indicating that a switching interval exists for the uplink transmitter to perform frequency band switching for uplink transmission, so that the uplink transmitter can complete switching between different frequency bands for uplink transmission within the switching interval. If the terminal device's current uplink transmission antenna port status and the antenna port status for previous uplink transmission do not satisfy the predetermined condition, the uplink transmitter indicates that frequency band switching has not been performed, and there is no need to set a switching interval, and the terminal device can simply perform normal uplink transmission of the terminal without uplink transmitter switching.

[0052] For example, the switching interval may be pre-configured by the network device via RRC signaling, or may be reported by the terminal device, or may be a preset fixed time interval such as 35 μs, 140 μs, or 210 μs. Note that the switching interval is not shorter than the time required for the uplink transmitter to switch the frequency band. The present application does not specifically limit the length of the switching interval. When the uplink transmitter's switching option is uplink switching and the transmitter's switching option is dual uplink, the switching intervals may have the same or different lengths, and the present application does not specifically limit the length of the switching intervals.

[0053] In S206, the reception of uplink information is cancelled within the switching interval.

[0054] In this embodiment, based on the antenna port status of the terminal device's uplink transmission, the uplink transmitter of the terminal device determines to start switching the frequency band, and within the switching interval, the network device cancels receiving uplink information from the terminal device.

[0055] In the uplink frequency band switching method of the embodiment of the present disclosure, the frequency band in which the uplink transmitter of the terminal device exists can be dynamically switched between more than two frequency bands, and the network device determines whether the antenna port state of the current uplink transmission and the antenna port state of the previous uplink transmission meet a predetermined condition. If the predetermined condition is met, it determines that the uplink transmitter of the terminal device will switch the uplink frequency band. Since there is a switching interval during which uplink transmission is unavailable due to the transmitter switching, the uplink transmitter of the terminal device can dynamically switch between more than two frequency bands, thereby ensuring the receiving performance of uplink transmission and improving the NR uplink rate, spectrum utilization rate, and uplink capacity.

[0056] 3 shows a flowchart of another uplink transmitter switching method in an embodiment of the present disclosure. As shown in FIG. 3, the uplink transmitter switching method in this embodiment includes S302 and S202 to S206. That is, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device in S202, the method further includes the following steps:

[0057] In S302, uplink transmitter switching option setting information is sent to the terminal device, and the uplink transmitter switching option setting information sets the uplink transmitter switching option (uplinkTxSwitchingOption) to uplink switching (switchedUL) or dual uplink (dualUL).

[0058] S202 to S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0059] In addition, the terminal device of the present disclosure has a capability to support two or more sets of uplink transmitters performing uplink transmission on only one carrier in one frequency band at the same time, i.e., a capability to support uplink switching, and / or a capability to support two or more sets of uplink transmitters performing uplink transmission on at least one carrier in each of different frequency bands at the same time, i.e., a capability to support dual uplink. The above different capabilities of the terminal device are distinguished by uplink transmitter switching options. In the present disclosure, a case where the terminal device supports two sets of uplink transmitters will be described as an example. If the terminal device supports more than two sets of uplink transmitters, adaptive modification can be performed.

[0060] For example, the uplink transmitter switching option configuration information can be configured in the terminal device by the network device through RRC signaling. According to the capability of the terminal device, the uplink transmitter switching option configuration information sent by the network device configures different switching methods by setting the uplink transmitter switching option to uplink switching or dual uplink.

[0061] The uplink transmitter switching option in this embodiment is uplink switching, which instructs a terminal device supporting two sets of uplink transmitters to perform uplink transmission only on carriers of one frequency band at the same time. Uplink switching can be used for multi-carrier uplink transmission, such as multi-carrier uplink transmission including supplementary uplink (SUL) carriers or multi-carrier uplink transmission of inter-frequency band carrier aggregation (CA).

[0062] When the uplink transmitter switching option setting information sets the uplink transmitter switching option to uplink switching, a terminal device supporting two sets of uplink transmitters can only perform uplink transmission on carriers of one frequency band at the same time. This disclosure illustrates a case where a terminal device performs uplink transmission on carriers of three or four frequency bands.

[0063] In addition, when a terminal device supporting two sets of uplink transmitters performs uplink transmission on a carrier with a frequency band larger than the other two, it can be adaptively modified by referring to the embodiments of the present disclosure, and is within the scope of protection of the present application.

[0064] Table 1 shows the possible cases of the states of the two sets of uplink transmitters between three frequency bands and the states of the uplink transmission antenna ports of the terminal device in the case of uplink switching. The numbers of uplink transmitters of different frequency bands and the numbers of uplink transmission antenna ports of the corresponding frequency bands are used to indicate the uplink transmitter states and uplink antenna port states of the terminal device.

[0065] [Table 1]

[0066] As shown in Table 1, in the case of uplink switching, the state between the three frequency bands of the two sets of uplink transmitters includes three cases: the number of uplink transmitters in one frequency band is two sets, and the number of uplink transmitters in the other frequency band is zero. Correspondingly, there are two cases for the number of antenna ports for uplink transmission in one frequency band, that is, the number of antenna ports for uplink transmission in that frequency band is two or one.

[0067] Table 2 shows possible cases of the states between the four frequency bands of the two sets of uplink transmitters of the terminal device and the states of the uplink transmitting antenna ports in the case of uplink switching.

[0068] [Table 2]

[0069] As shown in Table 2, in the case of uplink switching, the state between the four frequency bands of the two sets of uplink transmitters includes four cases: the number of uplink transmitters in one frequency band is two sets, and the number of uplink transmitters in the other frequency band is zero. Correspondingly, the number of antenna ports for uplink transmission in one frequency band can be two cases, that is, the number of antenna ports for uplink transmission in that frequency band is two or one.

[0070] In Table 1 or Table 2, if the uplink transmitter states of the current uplink transmission and the previous uplink transmission are different, the terminal device needs to perform uplink transmitter switching, and a switching interval is required for the uplink transmitter of the terminal device to switch the frequency band of the uplink transmission, and the terminal device cannot perform uplink transmission within the switching interval. If the current state of the uplink transmitter of the terminal device is that the number of uplink transmitters in a first frequency band among three or four frequency bands is 2T and the number of uplink transmitters in the remaining frequency bands is 0T, and at the time of the next uplink transmission, the state of the uplink transmitter of the terminal device is uplink transmission on at least one carrier in a second frequency band among the remaining frequency bands, the uplink transmitter of the terminal device performs frequency band switching, and the uplink transmitter state after switching is that the number of uplink transmitters in the second frequency band is 2T and the number of uplink transmitters in the other frequency bands is 0T. For example, when the frequency band in which the uplink transmission of the uplink transmitter of the terminal device is performed is switched among three frequency bands, if the first frequency band is frequency band A and the second frequency band is frequency band B, the transmitter state is switched from case 1 to case 2.

[0071] Since a network device (e.g., a base station) determines the state of an uplink transmitter according to the antenna port state of uplink transmission, determining a switching interval in which the terminal device cannot perform uplink transmission by switching the uplink transmitter may be: if the terminal device performs uplink transmission of one port or two ports on at least one carrier in a certain frequency band, and the previous uplink transmission of the terminal device is uplink transmission of one port or two ports on at least one carrier in another frequency band, the terminal device does not perform uplink transmission on any carrier in any frequency band within the switching interval.

[0072] 4 shows a flowchart of an uplink transmitter switching method in uplink switching according to an embodiment of the present disclosure. In addition to FIG. 3, this embodiment further subdivides S204 into S402 to S406. As shown in FIG. 4, this method includes S202, S206, S302, and S402 to S406, and specifically includes the following:

[0073] In S302, sending uplink transmitter switching option setting information to the terminal device, the uplink transmitter switching option setting information setting the uplink transmitter switching option to uplink switching; In S402, the predetermined condition is that the antenna port status of the terminal device's current uplink transmission is one port or two ports' uplink transmission on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is one-port or two-port uplink transmission on at least one carrier in the first frequency band; wherein the target frequency band and the first frequency band are different frequency bands among two or more frequency bands; In S404, if a predetermined condition is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S406, if the predetermined condition is not met, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0074] Note that S202 and S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0075] In one embodiment, if the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device do not satisfy a predetermined condition, it is determined that the frequency band switching of the uplink transmitter of the terminal device has not occurred. In this case, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of the uplink transmission, and the uplink transmission of the terminal without uplink transmitter switching is performed normally.

[0076] In the uplink transmitter switching method of the embodiment of the present disclosure, the uplink transmitter of the terminal device establishes a correspondence relationship between the states of more than two frequency bands and the possible cases of uplink transmission antenna ports, and based on the correspondence relationship, determines whether the antenna port state of the current uplink transmission and the antenna port state of the previous uplink transmission satisfy a predetermined condition. If the predetermined condition is met, determines that there is a switching interval in the uplink switching frequency band of the uplink transmitter of the terminal device during which uplink transmission is not possible due to transmitter switching, thereby enabling the uplink transmitter of the terminal device to dynamically switch between more than two frequency bands, ensuring the receiving performance of uplink transmission and further improving the NR uplink data rate, spectrum utilization rate and uplink capacity.

[0077] In one embodiment, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device in S202, the method further comprises: Determine an initial state of an antenna port for uplink transmission of the terminal device, where the initial state is to support uplink transmission of the two ports on at least one carrier of a preset frequency band, and the preset frequency band is a frequency band among the greater than two frequency bands.

[0078] The initial state of the antenna port for uplink transmission is used to determine whether a switching interval needs to be set for the initial uplink transmission after the switching option of the uplink transmitter is configured for uplink switching. If set for uplink switching, the initial state is set as part of a predetermined condition as the antenna port state for the previous uplink transmission of the terminal device, and it is determined whether the current state of the terminal device and the antenna port state for the previous uplink transmission satisfy the predetermined condition, and whether there is a switching interval in which uplink transmission is not possible due to transmitter switching, so that the uplink transmitter of the terminal device dynamically switches between two or more frequency bands and ensures the reception performance of the uplink transmission.

[0079] The preset frequency band can be determined according to the actual situation, and the present application is not specifically limited to it.

[0080] The preset frequency band in this embodiment is preset in the protocol or configured in the terminal device via the network device, so that the network device determines whether it is necessary to set a switching interval for switching the frequency band of the uplink transmitter in the initial uplink transmission of the terminal device.

[0081] The uplink transmitter switching option is dual uplink, which allows terminal devices with two sets of uplink transmitters to simultaneously perform uplink transmissions on carriers in different frequency bands. Multi-carrier uplink transmission scenarios available with dual uplink include inter-frequency band CA multi-carrier uplink transmission.

[0082] When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the terminal device of the two sets of uplink transmitters supports simultaneous uplink transmission on carriers of different frequency bands. Table 3 shows possible cases of the states among the three frequency bands of the uplink transmitter of the terminal device and the states of the uplink transmission antenna ports in the dual uplink case, and shows the states among the three frequency bands of the uplink transmitter of the terminal device and the states of the uplink transmission antenna ports using the number of uplink transmitters of the frequency bands and the number of uplink frequency band antenna ports.

[0083] [Table 3]

[0084] As shown in Table 3, in the case of dual uplink, there are six cases where two sets of uplink transmitters are present among three frequency bands, where three cases indicate that the number of uplink transmitters in one frequency band is two and the number of uplink transmitters in the other frequency band is zero. Correspondingly, the number of antenna ports for uplink transmission in one frequency band is divided into two cases, that is, the number of uplink transmission antenna ports in this frequency band is two or one, which correspond to Cases 1 to 3 in Table 3. In the other three cases, the number of uplink transmitters in two frequency bands is 1T each and the number of uplink transmitters in the remaining frequency band is zero. Correspondingly, the number of uplink transmission antenna ports in at least one of the two frequency bands is one and the number of uplink transmission antenna ports in the remaining frequency band is zero.

[0085] Table 4 shows possible cases of the state between four frequency bands and uplink transmission antenna ports of the uplink transmitter of the terminal device in dual uplink.

[0086] [Table 4]

[0087] As shown in Table 4, in the case of dual uplink, the state of two sets of uplink transmitters among four frequency bands includes 10 cases, where four cases have the number of uplink transmitters in one frequency band as 2T and the number of uplink transmitters in the other frequency band as 0. Correspondingly, there are two cases for the number of uplink transmission antenna ports in a frequency band, as shown in Cases 1 to 4 in Table 4, namely, the number of uplink transmission antenna ports in a frequency band is 2 or 1. In the remaining six cases, there is one set of uplink transmission antenna ports in each of two frequency bands, and the number of uplink transmission antenna ports in the remaining two frequency bands is 0. Correspondingly, the number of uplink transmission antenna ports in at least one of the two frequency bands is 1, as shown in Cases 5 to 10 in Table 4, where the number of uplink transmission antenna ports in the remaining two frequency bands is 0.

[0088] In Tables 3 and 4, if the state of the uplink transmitter in the current uplink transmission is different from the state of the uplink transmitter in the previous uplink transmission, the terminal device needs to switch the uplink transmitter, and a switching interval is required for the uplink transmitter of the terminal device to switch the frequency band for uplink transmission, and the terminal cannot perform uplink transmission within the switching interval.

[0089] In the case of dual uplink, the first case in which the uplink transmitter switches frequency bands is when the current state of the terminal device is that the number of uplink transmitters in a first frequency band among the two or more frequency bands is 2T, and the number of uplink transmitters in the remaining frequency bands is 0T, such as case 1 in Table 3 or Table 4. At the next uplink transmission, the state of the terminal device is uplink transmission of two ports of at least one carrier in a second frequency band among the remaining frequency bands, such as case 2 in Table 3 or Table 4. In this case, the uplink transmitter of the terminal device switches frequency bands, and the state of the uplink transmitter of the terminal device after switching is that the number of uplink transmitters in the second frequency band is 2T, and the number of uplink transmitters in the remaining frequency bands is 0T.

[0090] A network device (e.g., a base station) determines the state of the uplink transmitter of the terminal device according to the antenna port state of uplink transmission, and therefore determining a switching interval in which the terminal device cannot perform uplink transmission due to switching of the uplink transmitter may be that if the terminal device performs uplink transmission of two ports on at least one carrier in a certain frequency band, and the previous uplink transmission of the terminal device is uplink transmission of one port or two ports on at least one carrier in another frequency band, the terminal device does not perform uplink transmission on any carrier in any frequency band within the switching interval.

[0091] In this case, Figure 5 shows a flowchart of an uplink transmitter switching method in dual uplink in an embodiment of the present disclosure. This embodiment is based on Figure 3 and further subdivides S204. As shown in Figure 5, this method includes S202, S206, S302, S502 to S506, and specifically includes the following steps:

[0092] In step S302, sending uplink transmitter switching option setting information to the terminal device, the uplink transmitter switching option setting information setting the uplink transmitter switching option to dual uplink; In S502, the predetermined condition is that the antenna port status of the current uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is one-port or two-port uplink transmission on at least one carrier in the first frequency band; wherein the target frequency band and the first frequency band are different frequency bands among two or more frequency bands; In S504, if a predetermined condition is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S506, if the predetermined condition is not satisfied, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0093] Note that S202 and S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0094] In the case of dual uplink, the second case in which the uplink transmitter performs frequency band switching is as follows: if the current state of the terminal device is that the number of uplink transmitters in a first frequency band among the two or more frequency bands is 2T, and the number of uplink transmitters in the remaining frequency bands is 0T, for example, case 1 in Table 3 or Table 4, at the next uplink transmission, the state of the terminal device is to perform uplink transmission of one port on at least one carrier in each of any two or more frequency bands among the two or more frequency bands. For example, in cases 4 to 6 in Table 3 or cases 5 to 10 in Table 4, if there is one port in each of the different frequency bands, the uplink transmitter of the terminal device will perform frequency band switching, and the state of the uplink transmitter of the terminal device after switching is that the number of uplink transmitters in the two frequency bands is 1T, and the number of uplink transmitters in the remaining frequency bands is 0T.

[0095] Since the network device (e.g., a base station) determines the state of the uplink transmitter of the terminal device according to the state of the antenna port of uplink transmission, determining the switching interval in which the terminal device cannot perform uplink transmitter switching due to uplink transmitter switching may be: the terminal device performs uplink transmission of one port on at least one carrier in a first frequency band, and performs uplink transmission of one port on at least one carrier in a second frequency band, the terminal device's previous uplink transmission is uplink transmission of a port on at least one carrier in a certain frequency band, and the state of the terminal device supports uplink transmission of two ports on this frequency band, or the terminal device's previous uplink transmission is uplink transmission of two ports on at least one carrier in a certain frequency band, and in this case, the terminal device does not perform uplink transmission on any carrier within the switching interval.

[0096] For the second case, Fig. 6 shows a flowchart of an uplink transmitter switching method in dual uplink in another embodiment of the present disclosure. This embodiment is based on Fig. 3 and further subdivides S204 into S602 to S606. As shown in Fig. 6, this method includes S202, S206, S302, and S602 to S606, and specifically includes the following steps:

[0097] In step S302, sending uplink transmitter switching option setting information to the terminal device, the uplink transmitter switching option setting information setting the uplink transmitter switching option to dual uplink; In S602, the predetermined condition is that the antenna port status of the terminal device's current uplink transmission is an uplink transmission of one port on at least one carrier in a first frequency band and an uplink transmission of one port on at least one carrier in a second frequency band, where the first frequency band and the second frequency band are different frequency bands among more than two frequency bands; And the antenna port state of the terminal device's previous uplink transmission is the uplink transmission of one port on at least one carrier of one frequency band among more than two frequency bands, and the terminal device supports the uplink transmission of two ports in this one frequency band; Or, the antenna port status of the previous uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of one frequency band among more than two frequency bands; In S604, if a predetermined condition is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S606, if the predetermined condition is not met, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0098] Note that S202 and S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0099] In this embodiment, one of the two or more frequency bands from the previous uplink transmission of the terminal device may be the same as or different from the first frequency band or the second frequency band, and the present application is not particularly limited thereto.

[0100] In the case of dual uplink, the third case in which the uplink transmitter switches the frequency band is when the terminal device is currently in a state where the number of uplink transmitters in the first frequency band among the two or more frequency bands is 2T and the number of uplink transmitters in the remaining frequency bands is 0T, for example, as shown in Case 1 in Table 3 or Table 4. At the next uplink transmission, the terminal device is in a state where one port performs uplink transmission on at least one carrier in the second frequency band among the remaining frequency bands among the two or more frequency bands, and uplink transmission is performed on the other frequency band. If no frequency band is transmitted, the uplink transmitter of the terminal device performs frequency band switching, and the uplink transmitter of the terminal device after switching includes two states: one state is that the number of uplink transmitters in the first frequency band is 1T, the number of uplink transmitters in the second frequency band is 1T, and the number of uplink transmitters in other frequency bands is 0T, for example, as shown in case 4 of Table 3 and case 5 of Table 4; the other state is that the number of uplink transmitters in the second frequency band is 2T, and the number of uplink transmitters in other frequency bands is 0T, for example, as shown in case 2 of Table 3 and case 2 of Table 4.

[0101] A network device (e.g., a base station) determines the state of the uplink transmitter of the terminal device according to the state of the antenna port of uplink transmission. Therefore, determining a switching interval in which the terminal device cannot perform uplink transmission due to switching of the uplink transmitter may be: the terminal device currently performs uplink transmission of one port on at least one carrier in a certain frequency band, and the previous uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in another frequency band, and the state of the terminal device supports uplink transmission of two ports on this frequency band, or the previous uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier in another frequency band, in this case, the terminal device does not perform uplink transmission on any carrier within the switching interval.

[0102] For the third case, Fig. 7 shows a flowchart of an uplink transmitter switching method in dual uplink in another embodiment of the present disclosure. This embodiment further subdivides S204 into S702 to S706 based on Fig. 3, and as shown in Fig. 7, the method includes S202, S206, S302, and S702 to S706, and specifically includes the following steps:

[0103] In step S302, sending uplink transmitter switching option setting information to the terminal device, the uplink transmitter switching option setting information setting the uplink transmitter switching option to dual uplink; In S702, the predetermined condition is that the antenna port status of the current uplink transmission of the terminal device is the uplink transmission of one port on at least one carrier of the target frequency band; And the antenna port state of the terminal device's previous uplink transmission is one-port uplink transmission on at least one carrier in the first frequency band, and the terminal device supports two-port uplink transmission in the first frequency band; Or, the antenna port status of the terminal device's previous uplink transmission is uplink transmission of two ports on at least one carrier in the first frequency band; wherein the target frequency band and the first frequency band are different frequency bands among two or more frequency bands; In step S704, if a predetermined condition is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S706, if the predetermined condition is not met, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0104] Note that S202 and S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0105] In the case of dual uplink, the fourth case in which the uplink transmitter switches the frequency band is when the current state of the terminal device is that the number of uplink transmitters in the first frequency band and the second frequency band among the two or more frequency bands is 1T, and the number of uplink transmitters in the remaining frequency bands is 0T, for example, as shown in Case 4 in Table 3 and Case 5 in Table 4. At the time of the next uplink transmission, the state of the terminal device is uplink transmission in which there are two ports on at least one carrier in a certain frequency band, for example, in Cases 1 to 3 in Table 3 and Cases 1 to 4 in Table 4, the uplink transmitter of the terminal device is switched, and the state of the terminal uplink transmitter after the switching is that the number of uplink transmitters in the frequency band is 2T, and the number of uplink transmitters in the remaining frequency bands is 0.

[0106] Since the network device (e.g., a base station) determines the uplink transmitter state of the terminal device according to the antenna port state of uplink transmission, determining a switching interval in which the terminal device cannot perform uplink transmission due to switching of the uplink transmitter may be that the device terminal performs uplink transmission of two ports on at least one carrier in a certain frequency band, and the previous uplink transmission of the terminal device performs uplink transmission of one port on at least one carrier in another frequency band, in this case, the terminal device does not perform uplink transmission on any carrier within the switching interval. If the device terminal performs uplink transmission of two ports on at least one carrier in a certain frequency band, and the previous uplink transmission of the terminal device performs uplink transmission of one port on at least one carrier in each of the two frequency bands, the terminal device does not perform uplink transmission on any carrier within the switching interval. Alternatively, if the terminal device performs uplink transmission of two ports on at least one carrier in a frequency band, and a previous uplink transmission of the terminal device performs uplink transmission of one port on at least one carrier in the same frequency band, and the state of the terminal device does not support uplink transmission of two ports on the same frequency band, the terminal device does not perform uplink transmission on any carrier within the switching interval. Alternatively, determining a switching interval in which the terminal device cannot perform uplink transmission due to switching of the uplink transmitter may be: if the terminal device performs uplink transmission of two ports on at least one carrier in a frequency band, and a previous uplink transmission of the terminal device performs uplink transmission of one port on at least one carrier in two frequency bands, and the terminal device supports uplink transmission of one port on each of the two frequency bands, the terminal device does not perform uplink transmission on any carrier within the switching interval.

[0107] For the fourth case, Figure 8 shows a flowchart of an uplink transmitter switching method in dual uplink in another embodiment of the present disclosure. This embodiment is based on Figure 3, and further subdivides S204 into S802 to S806. As shown in Figure 8, this method includes S202, S206, S302, and S802 to S806, and specifically includes the following steps:

[0108] In step S302, sending uplink transmitter switching option setting information to the terminal device, the uplink transmitter switching option setting information setting the uplink transmitter switching option to dual uplink; In S802, the predetermined condition is that the antenna port status of the current uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier in a first frequency band and an uplink transmission of one port on at least one carrier in a second frequency band, where at least one of the first frequency band and the second frequency band is different from the target frequency band, and the target frequency band, the first frequency band, and the second frequency band are frequency bands among more than two frequency bands; Or, the antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier in a third frequency band, where the target frequency band and the third frequency band are different frequency bands among more than two frequency bands; Or, the antenna port state of the terminal device's previous uplink transmission is one-port uplink transmission on at least one carrier in the target frequency band, and the terminal device does not support two-port uplink transmission in the target frequency band; In S804, if a predetermined condition is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S806, if the predetermined condition is not satisfied, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0109] Note that S202 and S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0110] In the case of dual uplink, the fifth case in which the uplink transmitter switches the frequency band is when the current state of the terminal device is that the number of uplink transmitters in the first frequency band and the second frequency band among the two greater frequency bands is 1T, respectively, and the number of uplink transmitters in the remaining frequency band is 0T, as shown in Case 4 of Table 3 and Case 5 of Table 4. At the next uplink transmission, the terminal device will perform uplink transmission of one port on at least one carrier in the third frequency band among the two greater frequency bands, and will not perform uplink transmission on the other frequency bands. In this case, the uplink transmitter of the terminal device will switch the frequency band, and the switching The uplink transmitter state of the subsequent terminal device includes three states. In the first state, the number of uplink transmitters in the second frequency band and the third frequency band is 1T, respectively, and the number of uplink transmitters in the other frequency bands is 0T, as shown, for example, in case 6 of Table 3 and case 8 of Table 4. In the second state, the number of uplink transmitters in the first frequency band and the third frequency band is 1T, respectively, and the number of uplink transmitters in the other frequency bands is 0T, as shown, for example, in case 5 of Table 3 and case 6 of Table 4. In the third state, the number of uplink transmitters in the third frequency band is 2T, and the number of uplink transmitters in the other frequency bands is 0T, as shown, for example, in case 3 of Table 3 and case 3 of Table 4.

[0111] The network device (e.g., a base station) determines the uplink transmitter state of the terminal device according to the antenna port state of uplink transmission, and therefore determining the switching interval during which the terminal device cannot perform uplink transmission due to switching of the uplink transmitter may be: the previous uplink transmission of the terminal device is uplink transmission of one port on one carrier in at least one frequency band of the first frequency band and the second frequency band, the state of the terminal device supports uplink transmission of one port in both the first frequency band and the second frequency band, the terminal device is currently performing uplink transmission of one port on at least one carrier in the third frequency band, and there is no uplink transmission in both the first frequency band and the second frequency band, in this case the terminal device does not perform uplink transmission on any carrier within the switching interval.

[0112] For the fifth case, Figure 9 shows a flowchart of an uplink transmitter switching method in dual uplink in another embodiment of the present disclosure. This embodiment is based on Figure 3 and further subdivides S204 into S902 to S906. As shown in Figure 9, this method includes S202, S206, S302, and S902 to S906, and specifically includes the following steps:

[0113] In S302, the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink; In S902, the predetermined condition is that the antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier of at least one frequency band among the first frequency band and the second frequency band, and the terminal device supports the uplink transmission of one port in the first frequency band and the second frequency band; and the current uplink transmission antenna port state of the terminal device is the uplink transmission of one port of at least one carrier in the third frequency band, and there is no uplink transmission in the first frequency band and the second frequency band; wherein the first frequency band, the second frequency band, and the third frequency band are different frequency bands among two or more frequency bands; In step S904, if a predetermined condition is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S906, if the predetermined condition is not satisfied, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0114] Note that S202 and S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0115] In the case of dual uplink, the sixth case in which the uplink transmitter switches the frequency band is as follows: the current state of the terminal device is that the number of uplink transmitters in a first frequency band and a second frequency band among the two greater frequency bands is 1T, and the number of uplink transmitters in the remaining frequency bands is 0T; when performing the next uplink transmission, the state of the terminal device is to perform uplink transmission of one port on at least one carrier in each of any two greater frequency bands among the two greater frequency bands, and at least one of the two frequency bands is different from the first frequency band and the second frequency band; then, the uplink transmitter of the terminal device switches the frequency band; and the state of the uplink transmitter of the terminal device after the switching is that the number of uplink transmitters in each of the two frequency bands is 1T.

[0116] Since the network device (e.g., a base station) determines the uplink transmitter state of the terminal device according to the antenna port state of uplink transmission, determining a switching interval in which the terminal device cannot perform uplink transmitter switching due to uplink transmitter switching may be: a previous uplink transmission of the terminal device is uplink transmission of one port in at least one frequency band of a first and a second frequency band, a state of the terminal device supports uplink transmission of one port in both the first and the second frequency bands, a current state of the terminal device is uplink transmission of one port to at least one carrier in each of two frequency bands, and at least one of the two frequency bands is a frequency band different from the first frequency band and the second frequency band, in this case, the terminal device does not perform uplink transmission on any carrier within the switching interval.

[0117] For the sixth case, Fig. 10 shows a flowchart of an uplink transmitter switching method in dual uplink in another embodiment of the present disclosure. This embodiment further subdivides S204 into S1002 to S1006 based on Fig. 3, and as shown in Fig. 10, this method includes S202, S206, S302, and S1002 to S1006, and specifically includes the following steps:

[0118] In S302, the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink; In S1002, the predetermined condition is that the antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier of at least one frequency band among the first frequency band and the second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and the current antenna port state of uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in a first target frequency band and uplink transmission of one port on at least one carrier in a second target frequency band, and at least one frequency band among the first target frequency band and the second target frequency band is a frequency band different from the first frequency band and the second frequency band; wherein the first frequency band, the second frequency band, the first target frequency band, and the second target frequency band are frequency bands among two or more frequency bands; In step S1004, if a predetermined condition is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S1006, if the predetermined condition is not satisfied, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0119] Note that S202 and S206 are the same as in the above embodiment, and the description thereof will be omitted here.

[0120] 5 to 10, all or some of the predetermined conditions in S502, S602, S702, S802, S902, and S1002 constitute a predetermined condition set. If any of the predetermined conditions in the predetermined condition set is satisfied, a switching interval exists for the uplink transmitter to switch the frequency band of uplink transmission. If all of the predetermined conditions in the predetermined condition set are not satisfied, there is no need to set a switching interval for the uplink transmitter to switch the frequency band of uplink transmission.

[0121] In one embodiment of the present disclosure, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device in step S202, the method further comprises: Determining an initial state of an antenna port for uplink transmission of the terminal device; wherein the initial state is to support uplink transmission of two ports on at least one carrier in one preset frequency band, and the one preset frequency band is a frequency band among two or more frequency bands; Alternatively, the initial state may include supporting uplink transmission of one port in two preset frequency bands, respectively, and the two preset frequency bands being frequency bands among two or more frequency bands.

[0122] In this embodiment, the initial state of the antenna port for uplink transmission is used to determine whether a switching interval is required for initial uplink transmission after the switching option of the uplink transmitter is set to dual uplink. When dual uplink is set, the initial state is set as part of the predetermined condition as the antenna port state of the previous uplink transmission of the terminal device, and it is determined whether the current state of the terminal device and the antenna port state of the previous uplink transmission satisfy the predetermined condition, and it is determined whether there is a switching interval during which uplink transmission is not possible due to transmitter switching. This allows the uplink transmitter of the terminal device to dynamically switch between more than two frequency bands and ensure the receiving performance of uplink transmission. Note that the predetermined frequency band can be determined according to actual circumstances, and is not specifically limited in this application.

[0123] The preset frequency band in this embodiment is preset in the protocol or configured in the terminal device via the network device, so that the network device determines whether the initial uplink transmission of the terminal device needs to set a switching interval for the uplink transmitter to switch the frequency band.

[0124] In the uplink transmitter switching method of the embodiment of the present disclosure, in the case of dual uplink, the uplink transmitter of the terminal device establishes a correspondence relationship between the states between two or more frequency bands and the possible states of the uplink transmission antenna port, and then determines based on the correspondence relationship whether the state of the antenna port for the current uplink transmission and the state of the antenna port for the previous uplink transmission meet a predetermined condition. If the predetermined condition is met, the uplink transmitter of the terminal device decides to switch the uplink frequency band, and there is a switching interval during which uplink transmission cannot be performed due to the transmitter switching. The uplink transmitter of the terminal device can dynamically switch between two or more frequency bands, thereby ensuring the receiving performance of uplink transmission and further improving the NR uplink data rate, spectrum utilization rate, and uplink capacity.

[0125] 11 shows a flowchart of an uplink transmitter switching method in another embodiment of the present disclosure, which is based on FIG. 3 and adds S1102 and S1104 before S202, and the above steps can also be added before S202 based on FIG. 2.

[0126] In an embodiment, before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device in S202, the method further includes the following steps:

[0127] At S1102, receive capability information of a terminal device, where the capability information includes at least one of: an uplink transmitter switching option supported by the terminal device is dual uplink or uplink switching; information of more than two frequency bands; and the terminal device supports two sets of uplink transmitters for each frequency band of the more than two frequency bands; In S1104, send uplink transmitter switching setting information to the terminal device, where the uplink transmitter switching setting information includes at least one of setting information of more than two frequency bands and transmitter switching mode setting information, where the transmitter switching mode setting information configures the terminal device to support two sets of uplink transmitters for each frequency band of the more than two frequency bands.

[0128] It should be noted that before the uplink transmitter of the terminal device switches the frequency band, the terminal device transmits capability information to a network device, such as a base station, to report the frequency band switching capability of the terminal device.

[0129] When the network device receives the capability information reported by the terminal device, the network device configures the terminal device based on the capability information to dynamically switch between two or more frequency bands of the uplink transmitter of the terminal device.

[0130] Based on the same inventive concept, the embodiments of the present disclosure provide an uplink transmitter switching method, as described in the following embodiments. This method is applied to the terminal device side, and the principle of solving the problem in this method embodiment is similar to that in the above-mentioned method embodiment, so the implementation of this method embodiment can refer to the implementation applied to the above-mentioned network device side method embodiment, and the overlapping points will be omitted.

[0131] 12 shows a flowchart of an uplink transmitter switching method in yet another embodiment of the present disclosure. As shown in FIG. 12, the uplink transmitter switching method in this embodiment is applied to a terminal device side, and includes the following steps:

[0132] In S1202, an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission are determined, where an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between more than two frequency bands; In step S1204, if the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; In S1206, the transmission of uplink information is canceled at the switching interval.

[0133] Based on the same inventive concept, the embodiments of the present disclosure provide a network device and a terminal device, as described in the following embodiments. The solution principle of the device embodiment is similar to that of the above-mentioned method embodiment, so the implementation of the device embodiment can refer to the implementation of the above-mentioned method embodiment, and the overlapping description will be omitted.

[0134] 13 is a schematic diagram of a network device according to an embodiment of the present disclosure. As shown in FIG. 13, the network device according to this embodiment includes: a first port state determination module 1301, a first switching interval determination module 1302, and a first execution module 1303; The first port state determination module 1301 is configured to determine an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, where an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between more than two frequency bands; The first switching interval determination module 1302 is configured to determine, when an antenna port status of a current uplink transmission of the terminal device and an antenna port status of a previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for the uplink transmitter to perform frequency band switching of the uplink transmission; The first executing module 1303 is configured to cancel receiving uplink information within a switching interval.

[0135] In one embodiment, the network device includes a configuration module (not shown in the drawings): The setting module is configured to send uplink transmitter switching option setting information to the terminal device before determining the antenna port state of the current uplink transmission of the terminal device and the antenna port state of the previous uplink transmission of the terminal device, where the uplink transmitter switching option setting information sets the switching option of the uplink transmitter to uplink switching or dual uplink.

[0136] In one embodiment, the first switching interval determination module 1302 is configured such that the switching option setting information of the uplink transmitter sets the switching option of the uplink transmitter to uplink switching, and the predetermined condition is: The current uplink transmission antenna port status of the terminal device is one-port or two-port uplink transmission on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is one-port or two-port uplink transmission on at least one carrier in the first frequency band; Here, the target frequency band and the first frequency band are different frequency bands among two or more larger frequency bands.

[0137] In addition, the network device includes an initial state determination module (not shown in the drawings), which is configured to determine an initial state of the antenna port for uplink transmission of the terminal device before determining the antenna port state for current uplink transmission of the terminal device and the antenna port state for previous uplink transmission of the terminal device, where the initial state is to support uplink transmission of two ports on at least one carrier of a preset frequency band, and the preset frequency band is a frequency band among more than two frequency bands.

[0138] The preset frequency band in this embodiment is preset in the protocol or configured in the terminal device via the network device.

[0139] In one embodiment, the first switching interval determination module 1302 further determines whether the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, and the predetermined condition is: The current uplink transmission antenna port state of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is one-port or two-port uplink transmission on at least one carrier in the first frequency band; Here, the target frequency band and the first frequency band are different frequency bands among two or more larger frequency bands.

[0140] In one embodiment, the first switching interval determination module 1302 further determines whether the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, and the predetermined condition is: The current uplink transmission antenna port state of the terminal device is uplink transmission of one port on at least one carrier in one frequency band, and uplink transmission of one port on at least one carrier in a second frequency band, where the first frequency band and the second frequency band are different frequency bands among more than two frequency bands; And the antenna port status of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier of one frequency band among more than two frequency bands, and the terminal device supports uplink transmission of two ports in the frequency band; Or, the antenna port status of the terminal device's previous uplink transmission is uplink transmission of two ports on at least one carrier of one frequency band among more than two frequency bands.

[0141] In one embodiment, the first switching interval determination module 1302 further determines whether the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, and the predetermined condition is: The current uplink transmission antenna port state of the terminal device is the uplink transmission of one port on at least one carrier of the target frequency band; And the antenna port state of the terminal device's previous uplink transmission is one-port uplink transmission on at least one carrier in the first frequency band, and the terminal device supports two-port uplink transmission in the first frequency band; Or, the antenna port status of the terminal device's previous uplink transmission is uplink transmission of two ports on at least one carrier in the first frequency band; Here, the target frequency band and the first frequency band are different frequency bands among two or more larger frequency bands.

[0142] In one embodiment, the first switching interval determination module 1302 further determines whether the device switching option setting information sets the switching option of the uplink transmitter to dual uplink, and the predetermined condition is: The current uplink transmission antenna port state of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier in a first frequency band and an uplink transmission of one port on at least one carrier in a second frequency band, where at least one of the first frequency band and the second frequency band is different from a target frequency band, and the target frequency band, the first frequency band, and the second frequency band are frequency bands among more than two frequency bands; Or, the antenna port state of the terminal device's previous uplink transmission is one-port uplink transmission on at least one carrier in the target frequency band, and the terminal device does not support two-port uplink transmission in the target frequency band.

[0143] In some other embodiments, the first switching interval determination module 1302 further determines whether the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, and the predetermined condition is: The antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier of at least one frequency band among the first frequency band and the second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and the current uplink transmission antenna port status of the terminal device is that one port performs uplink transmission on at least one carrier in the third frequency band, and there is no uplink transmission in the first frequency band and the second frequency band; Here, the first frequency band, the second frequency band, and the third frequency band are different frequency bands among two or more larger frequency bands.

[0144] In one embodiment of the present disclosure, the first switching interval determination module 1302 is further configured: the switching option setting information of the uplink transmitter sets the switching option of the uplink transmitter to dual uplink, and the predetermined condition is: The antenna port state of the terminal device's previous uplink transmission is an uplink transmission of one port on at least one carrier of at least one frequency band among a first frequency band and a second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and the current antenna port state of uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in a first target frequency band and uplink transmission of one port on at least one carrier in a second target frequency band, and at least one frequency band among the first target frequency band and the second target frequency band is a frequency band different from the first frequency band and the second frequency band; Here, the first frequency band, the second frequency band, the first target frequency band, and the second target frequency band are frequency bands among two or more larger frequency bands.

[0145] Wherein, the initial state determination module is further configured to determine an initial state of the antenna port of the uplink transmission of the terminal device before determining the antenna port state of the current uplink transmission of the terminal device and the antenna port state of the previous uplink transmission of the terminal device; wherein the initial state is to support uplink transmission of two ports on at least one carrier in one preset frequency band, and the one preset frequency band is a frequency band among the two or more frequency bands; Alternatively, the initial state is to support uplink transmission of one port in each of two preset frequency bands, and the two preset frequency bands are frequency bands among two or more frequency bands.

[0146] In this embodiment, the one preset frequency band or the two preset frequency bands are set in a protocol or configured in the terminal device through a network device.

[0147] In one embodiment of the present disclosure, the network device includes a capability receiving module and a setting module, which are not shown in the drawings; The capability receiving module is configured to receive capability information of the terminal device before determining an antenna port state of a current uplink transmission of the terminal device and an antenna port state of a previous uplink transmission of the terminal device, where the capability information includes at least one of: an uplink transmitter switching option supported by the terminal device is dual uplink or uplink switching; information of more than two frequency bands; and the terminal device supports two sets of uplink transmitters for each frequency band of the more than two frequency bands; The setting module is further configured to send uplink transmitter switching setting information to the terminal device, where the uplink transmitter switching setting information includes at least one of setting information of more than two frequency bands and transmitter switching mode setting information, where the transmitter switching mode setting information is configured to configure the terminal device to support two sets of uplink transmitters for each frequency band of the more than two frequency bands.

[0148] In one embodiment, the first switching interval determination module 1302 further determines that if the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device do not satisfy a predetermined condition, there is no need to set the switching interval.

[0149] 14 shows a schematic diagram of a terminal device according to an embodiment of the present disclosure. As shown in FIG. 14, the terminal device according to this embodiment includes: a second port state determination module 1401, a second switching interval determination module 1402, and a second execution module 1403; The second port state determination module 1401 is configured to determine an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, where an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between more than two frequency bands; The second switching interval determination module 1402 is configured to determine, when an antenna port status of a current uplink transmission and an antenna port status of a previous uplink transmission satisfy a predetermined condition, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; The second executing module 1403 is configured to cancel the transmission of the uplink information within the switching interval.

[0150] Based on the same inventive concept, the embodiments of the present disclosure also provide a communication system as described in the following embodiments. Since the problem-solving principle of this system embodiment is similar to that of the above-mentioned method embodiment, the implementation of this system embodiment can refer to the implementation of the above-mentioned method embodiment, and the overlapping description will be omitted.

[0151] 15 is a schematic diagram of a communication system according to this embodiment. As shown in FIG. 15, the communication system according to this embodiment includes a network device 1501 and a terminal device 1502. The network device 1501 determines an antenna port state of a current uplink transmission of the terminal device 1502 and an antenna port state of a previous uplink transmission of the terminal device 1502, where a frequency band in which an uplink transmitter of the terminal device 1502 is located is dynamically switched between two or more larger frequency bands; If the antenna port status of the current uplink transmission of the terminal device 1502 and the antenna port status of the previous uplink transmission of the terminal device 1502 satisfy a predetermined condition, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; Canceling the reception of uplink information within the switching interval; The terminal device 1502 determines an antenna port state for a current uplink transmission and an antenna port state for a previous uplink transmission, where a frequency band in which an uplink transmitter of the terminal device 1502 is located is dynamically switched between two or more frequency bands; If the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission; Cancel transmission of uplink information within the switching interval.

[0152] Those skilled in the art will appreciate that various aspects of the present invention may be embodied as a system, method, or program product. Accordingly, various aspects of the present invention may be embodied as an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.), or an embodiment combining hardware and software aspects, which may be collectively referred to herein as a "circuit," "module," or "system."

[0153] An electronic device 1600 according to such an embodiment of the present invention will now be described with reference to Fig. 16. The electronic device 1600 shown in Fig. 16 is merely an example and does not impose any limitations on the functionality and scope of use of the embodiment of the present invention.

[0154] 16, electronic device 1600 is depicted as a general-purpose computing device. Components of electronic device 1600 may include, but are not limited to, at least one processing unit 1610, at least one storage unit 1620, and a bus 1630 connecting different system components (including storage unit 1620 and processing unit 1610).

[0155] The storage unit stores program code executable by the processing unit 1610, and the processing unit 1610 can perform steps according to various embodiments of the present invention described in the "Example Method" section of this specification. For example, the processing unit 1610 determines an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, as shown in FIG. 2, where an uplink transmitter of the terminal device dynamically switches a frequency band in which uplink transmission is in between more than two frequency bands, and if the antenna port state of the current uplink transmission of the terminal device and the antenna port state of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for the uplink transmitter to switch the frequency band of uplink transmission, and the uplink transmitter cancels reception of uplink information within the switching interval.

[0156] For example, the processing unit 1610 determines the antenna port state of the current uplink transmission and the antenna port state of the previous uplink transmission, as shown in FIG. 2, where the uplink transmitter of the terminal device dynamically switches the frequency band in which the uplink transmission is located between two or more frequency bands, and if the antenna port state of the current uplink transmission and the antenna port state of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for the uplink transmitter to switch the frequency band of the uplink transmission, and cancels the transmission of uplink information within the switching interval.

[0157] The storage unit 1620 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 16201 and / or a cache storage unit 16202, and may also include a read-only storage unit (ROM) 16203.

[0158] The storage unit 1620 may also include a program / utility 16204 having a set (at least one) program module 16205, which may include, but is not limited to, an operating system, one or more applications, other program modules, and a number of programs, each of which, or some combination thereof, may include implementation in a network environment.

[0159] Bus 1630 may represent one or more of several classes of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphical acceleration port, a processing unit, or a local bus using any of a number of bus structures.

[0160] The electronic device 1600 may also communicate with one or more external devices 1640, such as a keyboard, pointing device, Bluetooth device, one or more devices that allow a user to interact with the system, and / or any device (e.g., router, modem, etc.) that allows the electronic device 1600 to communicate with one or more other computing devices. This communication may occur via an input / output (I / O) interface 1650. The system may also communicate with public networks, such as a local area network (LAN), a wide area network (WAN), and / or the Internet, via a network adapter 1660. As shown, the network adapter 1660 communicates with other modules of the electronic device 1600 via a bus 1630. Although not shown, it should be understood that other hardware and / or software modules may be used in combination with the electronic device 1600, including, but not limited to, microcode, device drives, redundant processing units, external disk drive arrays, RAID systems, tape drives, backup storage systems, etc.

[0161] From the above description of the embodiments, it is easy for those skilled in the art to understand that the exemplary embodiments described herein can be realized by software, or by combining necessary hardware with software. Therefore, the technical aspects according to the embodiments of the present disclosure may be embodied in the form of a software product that may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB disk, a mobile hard disk, etc.) and includes multiple instructions for executing the methods according to the embodiments of the present disclosure.

[0162] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart may be implemented as a computer program product that, when executed by a processor, realizes the above-described uplink transmitter switching method.

[0163] Exemplary embodiments of the present disclosure also provide a computer-readable storage medium having stored thereon a program product capable of implementing the methods described herein. In some possible embodiments, various aspects of the present invention may also be implemented in the form of a program product that, when executed on a terminal device, causes the terminal device to perform steps according to various embodiments of the present invention as described in the "Example Method" section above of this specification.

[0164] A program product for implementing the above-described method according to an embodiment of the present invention is described, which employs a portable compact disc read-only memory (CD-ROM), contains program code, and can be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this file, a readable storage medium may be any tangible medium that contains or stores a program that can be used in conjunction with or that can instruct an execution system, apparatus, or device to use.

[0165] A program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (non-limiting list) of readable storage media include an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0166] A computer-readable signal medium may include a propagated numerical signal, either contained in baseband or as part of a carrier, that carries readable program code. Such propagated numerical signals may take various forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. A readable signal medium may be any readable medium other than a readable storage medium that can transmit, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device.

[0167] The program code contained in the readable medium may be transmitted over any suitable medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above.

[0168] Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages, e.g., Java, C++, etc., as well as conventional procedural programming languages ​​such as "C," or similar programming languages. The program code may execute entirely on the user computing device, partially on the user device, as a separate package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. When referring to a remote computing device, the remote computing device may be connected to the user computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet Service Provider).

[0169] Although the above detailed description refers to several modules or units of an apparatus for performing operations, such division is not mandatory. In fact, according to embodiments of the present disclosure, the features and functions of two or more of the above-described modules or units may be embodied in one module or unit. Conversely, the features and functions of one of the above-described modules or units may be further divided and embodied in multiple modules or units.

[0170] Additionally, although the accompanying figures may depict steps of the methods in this disclosure in a particular order, this does not require or imply that the steps must be performed in that particular order, or that all steps must be performed to achieve a desired result. Additionally or alternatively, some steps may be omitted, multiple steps may be merged into a single step execution, or a single step may be broken down into multiple step executions.

[0171] From the above description of the embodiments, it is easy for those skilled in the art to understand that the exemplary embodiments described herein can be realized by software, or by combining necessary hardware with software. Therefore, the technical aspects according to the embodiments of the present disclosure may be embodied in the form of a software product that may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB disk, a mobile hard disk, etc.) and includes multiple instructions for executing the methods according to the embodiments of the present disclosure.

[0172] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure in accordance with the general principles of the present disclosure, including common knowledge or customary technical means known in the art but not disclosed in the present disclosure. The specification and embodiments are considered to be exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. An uplink transmitter switching method applied to a network device side, comprising: Determining an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, wherein an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between two or more frequency bands; When the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to perform frequency band switching of the uplink transmission; canceling reception of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, The method further comprises: sending uplink transmitter switching option setting information to the terminal device, wherein the uplink transmitter switching option setting information sets a switching option of the uplink transmitter to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: a current uplink transmission antenna port state of the terminal device is uplink transmission of one port on at least one carrier in a first frequency band and uplink transmission of one port on at least one carrier in a second frequency band, the first frequency band and the second frequency band being different frequency bands among the two or more larger frequency bands; and the antenna port status of the previous uplink transmission of the terminal device is one-port or two-port uplink transmission on at least one carrier of one frequency band among the two or more frequency bands, and the terminal device supports two-port uplink transmission on the one frequency band.

2. A method for switching an uplink transmitter, comprising:

2. A method for switching an uplink transmitter applied to a network device side, comprising: Determining an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, wherein an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between two or more frequency bands; When the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to perform frequency band switching of the uplink transmission; canceling reception of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, The method further comprises: sending uplink transmitter switching option setting information to the terminal device, wherein the uplink transmitter switching option setting information sets a switching option of the uplink transmitter to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the previous uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in a first frequency band and / or uplink transmission of one port on at least one carrier in a second frequency band, the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band, at least one frequency band among the first frequency band and the second frequency band is different from the target frequency band, and the target frequency band, the first frequency band, and the second frequency band are frequency bands among the two or more frequency bands.

2. A method for switching an uplink transmitter, comprising:

3. A method for switching an uplink transmitter applied to a network device side, comprising: Determining an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, wherein an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between two or more frequency bands; When the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to perform frequency band switching of the uplink transmission; canceling reception of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, The method further comprises: sending uplink transmitter switching option setting information to the terminal device, wherein the uplink transmitter switching option setting information sets a switching option of the uplink transmitter to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: An antenna port state of a previous uplink transmission of the terminal device is an uplink transmission of one port on at least one carrier of at least one frequency band among a first frequency band and a second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and the current uplink transmission antenna port status of the terminal device is to perform uplink transmission of one port on at least one carrier in a third frequency band, and not to perform uplink transmission on the first frequency band and the second frequency band; The first frequency band, the second frequency band, and the third frequency band are different frequency bands among the two or more frequency bands.

2. A method for switching an uplink transmitter, comprising:

4. A method for switching an uplink transmitter applied to a network device side, comprising: Determining an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, wherein an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between two or more frequency bands; When the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to perform frequency band switching of the uplink transmission; canceling reception of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, The method further comprises: sending uplink transmitter switching option setting information to the terminal device, wherein the uplink transmitter switching option setting information sets a switching option of the uplink transmitter to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: An antenna port state of a previous uplink transmission of the terminal device is an uplink transmission of one port on at least one carrier of at least one frequency band among a first frequency band and a second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and a current antenna port state of uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in a first target frequency band and uplink transmission of one port on at least one carrier in a second target frequency band, and at least one frequency band among the first target frequency band and the second target frequency band is a frequency band different from the first frequency band and the second frequency band; The first frequency band, the second frequency band, the first target frequency band, and the second target frequency band are frequency bands among the two or more larger frequency bands.

2. A method for switching an uplink transmitter, comprising:

5. A method for switching an uplink transmitter applied to a network device side, comprising: Determining an antenna port state of a current uplink transmission of a terminal device and an antenna port state of a previous uplink transmission of the terminal device, wherein an uplink transmitter of the terminal device dynamically switches a frequency band in which the uplink transmission is located between two or more frequency bands; When the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device satisfy a predetermined condition, a switching interval exists for an uplink transmitter to perform frequency band switching of the uplink transmission; canceling reception of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, The method further comprises: sending uplink transmitter switching option setting information to the terminal device, wherein the uplink transmitter switching option setting information sets a switching option of the uplink transmitter to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is uplink transmission of one port on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is one-port uplink transmission on at least one carrier in a first frequency band, and the terminal device supports two-port uplink transmission in the first frequency band; Or, the antenna port status of the previous uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the first frequency band; The target frequency band and the first frequency band are different frequency bands among the two or more larger frequency bands.

2. A method for switching an uplink transmitter, comprising:

6. Before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, The method further comprises: determining an initial state of an antenna port for uplink transmission of the terminal device; the initial state is to support uplink transmission of two ports on at least one carrier in one preset frequency band, the one preset frequency band being one of the two greater frequency bands; Alternatively, the initial state is to support uplink transmission of one port in two preset frequency bands, respectively, and the two preset frequency bands are frequency bands among the two larger frequency bands. The method for switching an uplink transmitter according to any one of claims 1 to 5.

7. The one preset frequency band or the two preset frequency bands are preset in a protocol or configured in the terminal device via the network device. The method for switching an uplink transmitter according to claim 6 .

8. Before determining the antenna port status of the current uplink transmission of the terminal device and the antenna port status of the previous uplink transmission of the terminal device, The method further comprises: receiving capability information of the terminal device, the capability information including at least one of: an uplink transmitter switching option supported by the terminal device being dual uplink or uplink switching; information on the greater than two frequency bands; and information that the terminal device supports two sets of uplink transmitters for each frequency band of the greater than two frequency bands; transmitting uplink transmitter switching setting information to the terminal device, the uplink transmitter switching setting information including at least one of setting information of the greater than two frequency bands and setting information of a transmitter switching mode, the setting information of the transmitter switching mode including configuring the terminal device to support two sets of uplink transmitters for each frequency band of the greater than two frequency bands; The method for switching an uplink transmitter according to any one of claims 1 to 5.

9. An uplink transmitter switching method applied to a terminal device, comprising: determining an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, and an uplink transmitter of the terminal device dynamically switching a frequency band in which the uplink transmission is located between two or more frequency bands; If the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for an uplink transmitter to switch the frequency band of the uplink transmission; canceling transmission of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission, the method further comprises: receiving uplink transmitter switching option setting information from a network side device, wherein the uplink transmitter switching option setting information sets the uplink transmitter switching option to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: a current uplink transmission antenna port state of the terminal device is uplink transmission of one port on at least one carrier in a first frequency band and uplink transmission of one port on at least one carrier in a second frequency band, the first frequency band and the second frequency band being different frequency bands among the two or more larger frequency bands; And the antenna port state of the previous uplink transmission of the terminal device is one port or two port uplink transmission on at least one carrier of one frequency band among the two or more frequency bands, and the terminal device supports two port uplink transmission on the one frequency band.

2. A method for switching an uplink transmitter, comprising:

10. A method for switching an uplink transmitter applied to a terminal device, comprising: determining an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, and an uplink transmitter of the terminal device dynamically switching a frequency band in which the uplink transmission is located between two or more frequency bands; If the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for an uplink transmitter to switch the frequency band of the uplink transmission; canceling transmission of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission, the method further comprises: receiving uplink transmitter switching option setting information from a network side device, wherein the uplink transmitter switching option setting information sets the uplink transmitter switching option to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the target frequency band; and the antenna port state of the previous uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in a first frequency band, and / or uplink transmission of one port on at least one carrier in a second frequency band, the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band, at least one frequency band among the first frequency band and the second frequency band is different from the target frequency band, and the target frequency band, the first frequency band, and the second frequency band are frequency bands among the greater than two frequency bands.

2. A method for switching an uplink transmitter, comprising:

11. A method for switching an uplink transmitter applied to a terminal device, comprising: determining an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, and an uplink transmitter of the terminal device dynamically switching a frequency band in which the uplink transmission is located between two or more frequency bands; If the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for an uplink transmitter to switch the frequency band of the uplink transmission; canceling transmission of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission, the method further comprises: receiving uplink transmitter switching option setting information from a network side device, wherein the uplink transmitter switching option setting information sets the uplink transmitter switching option to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: An antenna port state of a previous uplink transmission of the terminal device is an uplink transmission of one port on at least one carrier of at least one frequency band among a first frequency band and a second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and the current uplink transmission antenna port status of the terminal device is to perform uplink transmission of one port on at least one carrier in a third frequency band, and not to perform uplink transmission on the first frequency band and the second frequency band; The first frequency band, the second frequency band, and the third frequency band are different frequency bands among the two or more frequency bands.

2. A method for switching an uplink transmitter, comprising:

12. A method for switching an uplink transmitter applied to a terminal device, comprising: determining an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, and an uplink transmitter of the terminal device dynamically switching a frequency band in which the uplink transmission is located between two or more frequency bands; If the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for an uplink transmitter to switch the frequency band of the uplink transmission; canceling transmission of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission, the method further comprises: receiving uplink transmitter switching option setting information from a network side device, wherein the uplink transmitter switching option setting information sets the uplink transmitter switching option to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: An antenna port state of a previous uplink transmission of the terminal device is an uplink transmission of one port on at least one carrier of at least one frequency band among a first frequency band and a second frequency band, and the terminal device supports uplink transmission of one port in the first frequency band and the second frequency band; and a current antenna port state of uplink transmission of the terminal device is uplink transmission of one port on at least one carrier in a first target frequency band and uplink transmission of one port on at least one carrier in a second target frequency band, and at least one frequency band among the first target frequency band and the second target frequency band is a frequency band different from the first frequency band and the second frequency band; The first frequency band, the second frequency band, the first target frequency band, and the second target frequency band are frequency bands among the two or more larger frequency bands.

2. A method for switching an uplink transmitter, comprising:

13. A method for switching an uplink transmitter applied to a terminal device, comprising: determining an antenna port state of a current uplink transmission and an antenna port state of a previous uplink transmission, and an uplink transmitter of the terminal device dynamically switching a frequency band in which the uplink transmission is located between two or more frequency bands; If the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission satisfy a predetermined condition, a switching interval exists for an uplink transmitter to switch the frequency band of the uplink transmission; canceling transmission of uplink information within the switching interval; Before determining the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission, the method further comprises: receiving uplink transmitter switching option setting information from a network side device, wherein the uplink transmitter switching option setting information sets the uplink transmitter switching option to uplink switching or dual uplink; When the uplink transmitter switching option setting information sets the uplink transmitter switching option to dual uplink, the predetermined condition is: The antenna port status of the current uplink transmission of the terminal device is uplink transmission of one port on at least one carrier of the target frequency band; and the antenna port state of the terminal device's previous uplink transmission is one-port uplink transmission on at least one carrier in a first frequency band, and the terminal device supports two-port uplink transmission in the first frequency band; Or, the antenna port status of the previous uplink transmission of the terminal device is uplink transmission of two ports on at least one carrier of the first frequency band; The target frequency band and the first frequency band are different frequency bands among the two or more larger frequency bands.

2. A method for switching an uplink transmitter, comprising:

14. Before determining the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission, The method further comprises: determining an initial state of an antenna port for uplink transmission of the terminal device; the initial state is to support uplink transmission of two ports on at least one carrier in one preset frequency band, the one preset frequency band being one of the two greater frequency bands; Alternatively, the initial state is to support uplink transmission of one port in two preset frequency bands, respectively, and the two preset frequency bands are frequency bands among the two larger frequency bands. The method for switching an uplink transmitter according to any one of claims 9 to 13.

15. The one predetermined frequency band or the two predetermined frequency bands are preset in a protocol or configured in the terminal device via a network device. The method for switching an uplink transmitter according to claim 14.

16. Before determining the antenna port status of the current uplink transmission and the antenna port status of the previous uplink transmission, The method further comprises: Send capability information of the terminal device to a network side device, the capability information including at least one of: an uplink transmitter switching option supported by the terminal device is dual uplink or uplink switching; information on the greater than two frequency bands; and information that the terminal device supports two sets of uplink transmitters for each frequency band of the greater than two frequency bands; receiving uplink transmitter switching setting information from the network side device, the uplink transmitter switching setting information including at least one of setting information of the greater than two frequency bands and setting information of a transmitter switching mode, the setting information of the transmitter switching mode including configuring the terminal device to support two sets of uplink transmitters for each frequency band of the greater than two frequency bands; The method for switching an uplink transmitter according to any one of claims 9 to 13.

17. A method for switching an uplink transmitter according to claim 1, wherein the method is configured to: A network device comprising:

18. A method for switching an uplink transmitter according to claim 9, wherein the method is configured to perform the method for switching an uplink transmitter according to claim 9. A terminal device characterized in that

19. A network device according to claim 17 and a terminal device according to claim 18. A communication system comprising:

20. 1. An electronic device including a processor and a memory for storing executable instructions for said processor, The processor is configured to perform the uplink transmitter switching method of any one of claims 1 to 5 by executing the executable instructions. An electronic device characterized by:

21. An electronic device including a processor and a memory for storing executable instructions for said processor, The processor is configured to perform the uplink transmitter switching method of any one of claims 9 to 13 by executing the executable instructions. An electronic device characterized by:

22. A computer program is stored which, when executed by a processor, implements the uplink transmitter switching method according to any one of claims 1 to 5. A computer-readable storage medium comprising:

23. A computer program that, when executed by a processor, implements the uplink transmitter switching method according to any one of claims 9 to 13. A computer-readable storage medium comprising:

24. A computer program product which, when executed by a processor, implements the uplink transmitter switching method according to any one of claims 1 to 5.

1. A computer program product comprising:

25. A computer program product that, when executed by a processor, implements the uplink transmitter switching method according to any one of claims 9 to 13.

1. A computer program product comprising:

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