Communication method, apparatus, electronic device and medium

Abstract

[Solution] A communication method, apparatus, electronic device, and medium are provided for a terminal, the communication method comprising: reporting optional information corresponding to a frequency band combination to a base station, the optional information representing a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination, the optional information being used to indicate a frequency band switching capability of the terminal, the optional information being used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination, the optional information being used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination, the optional information being used to indicate a transmission mode supported by each frequency band, the optional information being used to indicate a transmission mode supported by each frequency band pair in the frequency band combination, the optional information being used to indicate a transmission mode supported by each frequency band ...

Description

[Technical Field]

[0001] The present disclosure relates to the field of communications, and more particularly to communication methods, apparatus, electronic devices and media. [Background technology]

[0002] In related conferences, it has been suggested that the Super Uplink should support three or four uplink antenna switching means. However, the related art does not provide an effective means for a base station to grasp the uplink antenna switching capability of a terminal. Therefore, how to ensure that a terminal can effectively report its uplink antenna (UL tx, Uplink Transmitter) switching capability remains a problem to be solved. Summary of the Invention [Problem to be solved by the invention]

[0003] To solve the problems existing in the related art, the present disclosure provides a communication method, apparatus, electronic device, and medium. [Means for solving the problem]

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a communication method applicable to a terminal, the method including a step of reporting, to a base station, optional information corresponding to a frequency band combination with a granularity of the frequency band combination, the frequency band combination including at least two frequency bands, and correspondingly, the frequency band combination including at least one frequency band pair formed by combining the at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0005] According to a second aspect of an embodiment of the present disclosure, there is provided a communication method applicable to a base station, the method including: receiving, with a frequency band combination as a granularity, optional information corresponding to a frequency band combination reported by a terminal, the frequency band combination including at least two frequency bands, and correspondingly, the frequency band combination including at least one frequency band pair formed by combining the at least two frequency bands; and determining a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination based on the optional information.

[0006] According to a third aspect of an embodiment of the present disclosure, there is provided a communication device applicable to a terminal, the device including: reporting, to a base station, optional information corresponding to a frequency band combination with a granularity of the frequency band combination, the frequency band combination including at least two frequency bands, and correspondingly, the frequency band combination including at least one frequency band pair formed by combining the at least two frequency bands, the optional information being used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0007] According to a fourth aspect of an embodiment of the present disclosure, there is provided a communication device applicable to a base station, the device including: a receiving module configured to receive, with a frequency band combination as a granularity, optional information corresponding to the frequency band combination reported by a terminal, where the frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands; and a determining module configured to determine a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination based on the optional information.

[0008] According to a fifth aspect of an embodiment of the present disclosure, there is provided an electronic device, comprising: a processor; and a memory for storing instructions executable by the processor, wherein the processor is configured to perform steps of the method according to any one of the first aspect of the present disclosure or steps of the method according to any one of the second aspect of the present disclosure.

[0009] According to a sixth aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer program instructions, which, when executed by a processor, effectuate steps of the method according to any one of the first aspect of the present disclosure or steps of the method according to any one of the second aspect of the present disclosure. [Effects of the Invention]

[0010] In the technical solution provided by the embodiments of the present disclosure, optional information corresponding to a frequency band combination is reported to a base station using a frequency band combination as a granularity, so that the base station can determine the frequency bands supported by the terminal and the transmission modes supported by each frequency band and frequency band pair based on the optional information reported by the terminal, thereby enabling the base station to effectively determine the uplink antenna switching capability of the terminal and ensuring the reliability of the terminal's uplink antenna and frequency band switching.

[0011] It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and do not limit the present disclosure. [Brief explanation of the drawings]

[0012] The above and / or additional aspects and advantages of the present disclosure will become more apparent and understandable from the following description of the examples taken in conjunction with the drawings. [Figure 1] 1 illustrates, by way of example, a schematic diagram of a system architecture to which embodiments of the present disclosure are applicable; [Figure 2]1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 3] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 4] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 5] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 6] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 7] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 8] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 9] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 10] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 11] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 12] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 13] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 14] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 15] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 16] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 17] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 18] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 19] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 20] 1 is a flowchart of a communication method illustrated by an exemplary embodiment. [Figure 21] FIG. 1 is a block diagram of a communication device according to an exemplary embodiment. [Figure 22] FIG. 1 is a block diagram of a communication device according to an exemplary embodiment. [Figure 23] FIG. 1 is a block diagram of an electronic device according to an example embodiment. [Figure 24] FIG. 1 is a block diagram of an electronic device according to an example embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] Illustrative embodiments will now be described in detail, examples of which are illustrated in the drawings. Where the following description refers to the drawings, like numerals in different drawings represent the same or similar elements unless otherwise stated. The embodiments described in the following illustrative examples do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0014] First, an implementation environment of the embodiment of the present disclosure will be described.

[0015] The embodiments of the present disclosure may be applied to communication systems such as 4G (fourth generation mobile communication system) evolved systems, such as long term evolution (LTE) systems, or 5G (fifth generation mobile communication system), access networks using new radio access technology (New RAT), and Cloud Radio Access Network (CRAN).

[0016] FIG. 1 exemplarily illustrates a schematic diagram of a system architecture to which an embodiment of the present disclosure can be applied. Note that the embodiment of the present disclosure is not limited to the system illustrated in FIG. 1 , and the devices in FIG. 1 may be hardware, functionally partitioned software, or a combination of both. As illustrated in FIG. 1 , the system architecture provided by the embodiment of the present disclosure includes a terminal and a network device. In one example, the network device may include an access network device and a core network device, and the terminal may communicate with the core network device via the access network device.

[0017] In one example, the access network device may include a base station, which may also be called an access node as one of specific implementation forms of an access network (AN), and when it is a form of wireless access, it is called a radio access network (RAN) that provides wireless access services to terminals. Specifically, the access node may be a base station in a global system for mobile communication (GSM) system or a code division multiple access (CDMA) system, a base station (Node B) in a wideband code division multiple access (WCDMA) system, an evolutionary node B (eNB or eNodeB) in an LTE system, or a base station device, a small base station device, a wireless access node (WiFi AP), a worldwide interoperability for microwave access base station (WiMAX BS) in a 5G network, etc., but the present disclosure is not limited thereto. The access network is responsible for handling various positioning processes, including positioning the target terminal, providing location-related information unrelated to a specific target terminal, and transmitting location messages between the target terminal and an AMF (Access Management Function) network element or an LMF (Location Management Function) network element in the core network.

[0018] A terminal may also be referred to as an access terminal, user equipment (UE), user unit, user station, mobile station, mobile stand, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment, etc. A terminal may be a mobile phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capability, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, Internet of Things terminal device such as a fire detection sensor, smart water / electricity meter, plant monitoring device, etc.

[0019] The core network device may include a mobility management network element, which may include an access and mobility management function (AMF) in 5G. The mobility management network element is responsible for access and mobility management of a terminal in a mobile network. The AMF is responsible for terminal access and mobility management, NAS message routing, and session management function entity (SMF) selection. The AMF can be used as an intermediate network element to transmit session management messages between the terminal and the SMF.

[0020] The core network device may also include a data management network element for handling terminal device identification, access authentication, registration and mobility management, etc. In a 5G communication system, this data management element may be a unified data management (UDM) network element.

[0021] Additionally, the core network device may further include location services (LCS) clients and Gateway Mobile Location Centre (GMLC) network elements, through which the LCS clients can access LCS services. GMLC network elements may include elements such as Visited-Gateway Mobile Location Centre (V-GMLC) and Home-Gateway Mobile Location Centre (H-GMLC). The GMLC network element includes the functions necessary to support LCS. The GMLC is the first node for an external LCS client to access a Public Land Mobile Network (PLMN). Application Function (AF) network elements and Network Function (NF) network elements can access the GMLC directly or through a Network Exposure Function (NEF) network element.

[0022] The functions may be network elements in a hardware device, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).

[0023] In related conferences, it has been proposed that the super uplink needs to support three or four uplink antenna switching means. However, the related art does not provide an effective means for a base station to grasp the uplink antenna switching capability of a terminal. Therefore, how to ensure that a terminal effectively reports its uplink antenna switching capability remains a problem to be solved.

[0024] To solve the problems existing in the related art, the present disclosure provides a communication method, apparatus, electronic device, and medium.

[0025] FIG. 2 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal, and as shown in FIG. 1, the method includes the following step 201:

[0026] In S201, the granularity of the frequency band combination (BC) is used to report option information corresponding to the frequency band combination to the base station.

[0027] A frequency band combination includes at least two frequency bands (bands), and correspondingly, the frequency band combination includes at least one frequency band pair (BP) formed by combining at least two frequency bands, and the optional information is used to indicate a transmission format supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0028] Note that, before step S201, the terminal can report to the base station the frequency bands supported by the terminal and its own capabilities. A frequency band combination can include multiple frequency bands supported by the terminal. Using the frequency band combination as the granularity means that the terminal reports the frequency bands supported by the terminal in the frequency band combination to the base station, with the frequency band combination being the smallest unit.

[0029] In a specific implementation, the frequency band combination may include three, four, or more frequency bands. For example, the frequency band combination may include three frequency bands, n1, n22, and n23, supported by this terminal. Correspondingly, the frequency band combination may include three frequency band pairs, (n1, n22), (n1, n23), and (n22, n23), supported by the terminal.

[0030] In one example, if the optional information corresponding to a frequency band combination is dualUL, the optional information indicates that all frequency band pairs in the frequency band combination support only concurrent transmission; if the optional information corresponding to the frequency band combination is switchedUL, the optional information indicates that all frequency bands in the frequency band combination support only single transmission; if the optional information corresponding to the frequency band combination is both, the optional information indicates that at least one frequency band pair in the frequency band combination supports concurrent transmission and at least one frequency band in the frequency band combination supports single transmission.

[0031] The optional information may be one of three options: dualUL, switchedUL, or both. The terminal may report the optional information of dualUL, switchedUL, or both based on its own capabilities. For example, if a frequency band pair consisting of frequency bands supported by the terminal's antennas cannot support simultaneous transmission, the terminal may report the optional information of switchedUL to the base station.

[0032] In addition, in a frequency band combination, a frequency band pair formed by some frequency bands supporting single transmission and other frequency bands may or may not support simultaneous transmission, and this disclosure is not limited thereto. For example, assuming that a frequency band combination includes three frequency bands n1, n22, and n23 supported by this terminal, if n1 supports single transmission, the frequency band pair formed by it and n22 may support simultaneous transmission, but the frequency band pair formed by it and n23 may not support simultaneous transmission.

[0033] In an embodiment of the present disclosure, optional information corresponding to a frequency band combination is reported to a base station using a frequency band combination as a granularity, so that the base station can grasp the frequency bands supported by the terminal and the transmission modes supported by each frequency band and frequency band pair based on the optional information reported by the terminal. This allows the base station to effectively grasp the uplink antenna switching capability of the terminal and ensure the reliability of the terminal's uplink antenna and frequency band switching.

[0034] FIG. 3 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 3, the method includes the following steps 301 to 302.

[0035] In S301, option information corresponding to a frequency band combination is reported to the base station with the frequency band combination as the granularity.

[0036] The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0037] In S302, in response to determining that the option information corresponding to the frequency band combination is both, report support information corresponding to at least one frequency band pair in the frequency band combination to the base station, where the support information corresponding to the at least one frequency band pair is used to indicate a transmission mode supported by the corresponding frequency band pair.

[0038] Note that, before step S301, the terminal can report to the base station the frequency bands supported by the terminal and its own capabilities. A frequency band combination can include multiple frequency bands supported by the terminal. Using the frequency band combination as the granularity means that the terminal reports the frequency bands supported by the terminal in the frequency band combination to the base station, with the frequency band combination being the smallest unit.

[0039] In a specific implementation, the frequency band combination may include three, four, or more frequency bands. For example, the frequency band combination may include three frequency bands, n1, n22, and n23, supported by this terminal. Correspondingly, the frequency band combination may include three frequency band pairs, (n1, n22), (n1, n23), and (n22, n23), supported by the terminal.

[0040] In one possible embodiment, if the terminal determines based on its own capabilities that the optional information of this frequency band combination is both, it may not perform step S301 and only perform step S302, i.e., it does not report the optional information corresponding to the frequency band combination to the terminal, and only reports support information corresponding to at least one frequency band pair to the base station.

[0041] In one example, if the support information corresponding to a frequency band pair is simultaneous transmission, this support information indicates that this frequency band pair only supports simultaneous transmission; if the support information corresponding to a frequency band pair is single transmission, this support information indicates that the two frequency bands in this frequency band pair only support single transmission; if the support information corresponding to a frequency band pair is full transmission, this support information indicates that this frequency band pair supports simultaneous transmission and the two frequency bands in this frequency band pair support single transmission.

[0042] In one example, when the optional information corresponding to a frequency band combination is dualUL, the optional information indicates that all frequency band pairs in the frequency band combination support only simultaneous transmission; when the optional information corresponding to the frequency band combination is switchedUL, the optional information indicates that all frequency bands in the frequency band combination support only single transmission; when the optional information corresponding to the frequency band combination is both, the optional information indicates that at least one frequency band pair in the frequency band combination supports simultaneous transmission and at least one frequency band in the frequency band combination supports single transmission.

[0043] The optional information may be one of three options: dualUL, switchedUL, or both. The terminal may report the optional information of dualUL, switchedUL, or both based on its own capabilities. For example, if a frequency band pair consisting of frequency bands supported by the terminal's antennas cannot support simultaneous transmission, the terminal may report the optional information of switchedUL to the base station.

[0044] The support information may be one of three options: dualUL, switchedUL, or both. If the support information is dualUL, the support information may be simultaneous transmission. If the support information is switchedUL, the support information may be single transmission. If the support information is both, the support information may be full transmission.

[0045] For example, take the frequency band combination as an example, which includes three frequency bands n1, n22, and n23 supported by the terminal. Correspondingly, the frequency band combination may include three frequency band pairs (n1, n22), (n1, n23), and (n22, n23) supported by the terminal. If the support information corresponding to (n1, n22) is dualUL, this support information indicates that this frequency band pair only supports simultaneous transmission. If the support information corresponding to (n1, n23) is switchedUL, this support information indicates that this frequency band pair only supports single transmission. If the support information corresponding to (n22, n23) is both, this support information indicates that this frequency band pair supports simultaneous transmission, and the two frequency bands in this frequency band pair support single transmission.

[0046] In the embodiments of the present disclosure, when some frequency band pairs in a frequency band combination support simultaneous transmission and some frequency bands in the frequency band combination support single transmission, at least one corresponding support information is reported, so that the base station can grasp the uplink antenna switching capability of the terminal, and the reliability of the uplink antenna and frequency band switching of the terminal can be ensured while reducing the amount of information to be reported.

[0047] In one example, the support information corresponding to at least one frequency band pair includes support information corresponding to at least three frequency band pairs, the number of the at least three frequency band pairs being less than or equal to the number of frequency band pairs included in the frequency band combination, and the support information corresponding to two target frequency band pairs of the at least three frequency band pairs being first support information and second support information, respectively.

[0048] In one embodiment, the target frequency band pair is any two frequency band pairs of the at least three frequency band pairs.

[0049] The base station can determine the order of each frequency band pair in the frequency band combination reported by the terminal based on information previously reported by the terminal or based on a predefined order. Furthermore, since the support information for the two target frequency band pairs is the first support information and the second support information, respectively, the completeness of the transmission format of the frequency band combination reported by the terminal is ensured to a certain extent. Therefore, in this case, for frequency band pairs for which support information is not reported, the base station can default to the fact that these frequency band pairs only support simultaneous transmission, or the frequency bands in these frequency band pairs only support single transmission, and this disclosure is not limited thereto.

[0050] In one embodiment, the target frequency band pair is the first two frequency band pairs in the at least three frequency band pairs in order, or the last two frequency band pairs of the at least three frequency band pairs.

[0051] For example, if the at least three frequency band pairs include three frequency band pairs, namely (n1, n22), (n1, n23), and (n22, n23), there may be a specific order when the terminal reports support information corresponding to each frequency band pair in the frequency band combination to the base station. Illustratively, if the terminal determines based on its own capability that the frequency band pair (n1, n22) only supports simultaneous transmission and the frequency band pair (n1, n23) only supports single transmission, it can define these two frequency band pairs as the first two frequency band pairs or the last two frequency band pairs. If defined as the first two frequency band pairs, the terminal can further sequentially transmit support information corresponding to the three frequency band pairs, namely (n1, n22), (n1, n23), and (n22, n23), and the support information corresponding to (n1, n22) and (n1, n23) can respectively support simultaneous transmission and single transmission.

[0052] Optionally, support information corresponding to other frequency band pairs among the support information corresponding to the at least one frequency band pair is determined by the terminal based on its own capability, and the other frequency band pairs are frequency band pairs among the at least three frequency band pairs excluding the target frequency band pair.

[0053] Alternatively, the first support information is a single transmission and the second support information is a simultaneous transmission, or the first support information is a simultaneous transmission and the second support information is a single transmission.

[0054] For example, the frequency band combination may include three frequency bands n1, n22, and n23 supported by the terminal. Correspondingly, the frequency band combination may include three frequency band pairs (n1, n22), (n1, n23), and (n22, n23) supported by the terminal. The terminal may predefine (n1, n22) and (n1, n23) as dualUL and switchedUL, respectively, or may predefine (n1, n23) and (n22, n23) as switchedUL and dualUL.

[0055] Note that the terminal predefines the first two frequency band pairs or the last two frequency band pairs as the first support information and the second support information only when it is determined, based on the terminal's own capabilities, that the first two frequency band pairs or the last two frequency band pairs support the first support information and the second support information. For example, the terminal determines (n1, n22) and (n1, n23) as the first two frequency band pairs only when it is determined that (n1, n22) supports only simultaneous transmission and (n1, n23) supports only single transmission. Correspondingly, the base station can determine which two frequency bands form the first two frequency band pairs or the last two frequency band pairs based on its own capabilities and supported frequency bands reported by the terminal.

[0056] In this example, the terminal reports support information corresponding to at least three frequency band pairs, eliminating the need to report support information corresponding to each frequency band pair, allowing the base station to effectively grasp the terminal's uplink antenna switching capability, thereby ensuring the reliability of the terminal's uplink antenna and frequency band switching while reducing the amount of information to be reported.

[0057] In another example, the number of the at least one frequency band pair is equal to or less than the number of frequency band pairs included in the frequency band combination, and among the support information corresponding to the at least one frequency band pair, the support information corresponding to each frequency band pair is the same and is third support information.

[0058] Alternatively, the third support information is for simultaneous transmission, and the support information corresponding to at least one frequency band pair is used to indicate that at least one frequency band pair in the frequency band combination only supports simultaneous transmission, and all frequency band pairs except for at least one frequency band pair only support single transmission; or the third support information is for full transmission, and the support information corresponding to at least one frequency band pair is used to indicate that at least one frequency band pair in the frequency band combination supports both simultaneous transmission and single transmission, and all frequency band pairs except for at least one frequency band pair only support single transmission; or the third support information is for single transmission, and the support information corresponding to at least one frequency band pair is used to indicate that at least one frequency band pair in the frequency band combination only supports single transmission, and all frequency band pairs except for at least one frequency band pair only support simultaneous transmission, or all frequency band pairs except for at least one frequency band pair support both simultaneous transmission and single transmission.

[0059] Whether the third support information is simultaneous communication, full transmission, or single transmission can be determined based on the terminal's own capabilities.

[0060] For example, assume that the frequency band combination includes three frequency bands n1, n22, and n23 supported by the terminal. Correspondingly, the frequency band combination may include three frequency band pairs (n1, n22), (n1, n23), and (n22, n23) supported by the terminal. If (n1, n22) and (n1, n23) only support simultaneous transmission, the terminal may report support information corresponding to (n1, n22) and (n1, n23), i.e., third support information for simultaneous transmission or dual UL, and the base station may determine that the unreported frequency band pair (n22, n23) only supports single transmission.

[0061] In this example, by reporting support information for at least one frequency band pair among frequency band pairs having the same support information in a frequency band combination, the base station can grasp the transmission mode supported by each frequency band pair without transmitting support information corresponding to each frequency band pair. This allows the base station to effectively grasp the uplink antenna switching capability of the terminal, ensuring the reliability of the terminal's uplink antenna and frequency band switching while reducing the amount of information to be reported.

[0062] In one embodiment, the UE reports optional information.

[0063] The option dualUL indicates that all BPs included in the BC support only simultaneous transmission, or that the BPs support only simultaneous transmission.

[0064] The option switchedUL indicates that all bands included in the BC support only single transmission, or that the bands in the BP support only single transmission.

[0065] The option both indicates that all BPs included in the BC support simultaneous transmission and all bands included in the BC support single transmission, or that the BPs only support simultaneous transmission and the bands in the BPs only support single transmission.

[0066] In one embodiment, the UE reports optional information for a band combination (BC) as a granularity. The UE reports at least one BC, and each BC includes at least three bands, preferably three or four bands.

[0067] The UE reports the transmission modes supported by the band or BP in the BC by the following means:

[0068] Means 1: Report at least three BPs, where the first two BPs correspond to the first option and the second option, respectively, and the remaining BPs correspond to the first option, the second option, or the third option. The first option and the second option are preferably dualUL and / or switchedUL.

[0069] Means 2: Report at least three BPs, the last two of which correspond to the first option and the second option, respectively, and the remaining BPs correspond to the first option, the second option, or the third option. The first option and the second option are preferably dualUL and / or switchedUL.

[0070] In another embodiment, the UE reports at least one BC, each BC including at least three bands.

[0071] The UE reports the transmission modes supported by the band or BP in the BC by the following means:

[0072] Means 1: The UE reports at least one BP, which corresponds to a first option, preferably the first option is dualUL, and all bands in the BC, excluding the band in the BP reported by the UE, support only single transmission, or all bands in the BC, excluding the BP reported by the UE, correspond to switchedUL.

[0073] Method 2: The UE reports at least one BP, which corresponds to a first option, preferably the first option is both, and all bands in the BC, excluding the band in the BP reported by the UE, support only single transmission, or all bands in the BC, excluding the BP reported by the UE, correspond to switchedUL.

[0074] Means 3: The UE reports at least one BP, which corresponds to a first option, preferably the first option is switchedUL, and all BPs in the BC other than the BP reported by the UE correspond to both, or all BPs in the BC other than the BP reported by the UE correspond to dualUL.

[0075] In a related technology, RRC (Radio Resource Control) signaling can be set to oneT or twoT. When the RRC signaling is set to oneT, the RRC signaling is used to instruct single-antenna switching. When the RRC signaling is set to twoT, the RRC signaling is used to instruct double-antenna switching. When the RRC signaling is used to instruct single-antenna switching, if a first antenna is in a first frequency band, a second antenna is in a second frequency band, and an instruction indicating that the next transmission will be performed in a third frequency band is received, one of the first or second antennas maintains its original frequency band, and the other antenna switches to the third frequency band. However, how to distinguish whether the first antenna or the second antenna is switching is an issue that needs to be resolved as soon as possible.

[0076] FIG. 4 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 4, the method includes the following step 401:

[0077] In S401, receive RRC signaling for instructing single antenna switching transmitted by a base station, and in response to a first antenna of a terminal being in a first frequency band, a second antenna being in a second frequency band, and a next transmission being performed in a third frequency band, determine whether to switch the first antenna to the third frequency band or switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band.

[0078] The third frequency band for the next transmission may be conveyed by this RRC signaling or by other signaling, and this disclosure does not limit this.

[0079] It should be noted that before step S401 is performed, the terminal may first report to the base station the frequency bands supported by it and its own capabilities. Correspondingly, the base station may also determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band.

[0080] For example, taking three frequency bands n1, n22, and n23 supported by a terminal as an example, where n1 is the first frequency band, n22 is the second frequency band, and n23 is the third frequency band, the third frequency band can form two frequency band pairs (n1, n23) and (n22, n23) with the first and second frequency bands. Furthermore, it is determined whether to switch the first antenna or the second antenna to n23 based on the switching time between n1 and n23 and the switching time between n22 and n23 in the two frequency band pairs (n1, n23) and (n22, n23).

[0081] In an embodiment of the present disclosure, when a terminal receives RRC signaling to instruct single antenna switching, the terminal determines the antenna to switch to the third frequency band in the next transmission based on the switching time of the frequency band pair formed by the third frequency band of the next transmission and the frequency band associated with the current antenna, and can reliably determine the antenna to switch to the third frequency band.

[0082] FIG. 5 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 5, the method includes the following steps 501 to 502.

[0083] In S501, in response to receiving RRC signaling for instructing single antenna switching transmitted by a base station, where a first antenna of a terminal is in a first frequency band, a second antenna is in a second frequency band, and a next transmission is to be performed in a third frequency band, a switching time of a first frequency band pair formed by the first frequency band and the third frequency band, and a switching time of a second frequency band pair formed by the second frequency band and the third frequency band, is determined.

[0084] In S502, in response to determining that the switching time of the first frequency band pair formed by the first frequency band and the third frequency band is greater than the switching time of the second frequency band pair formed by the second frequency band and the third frequency band, it is determined to switch the first antenna to the third frequency band, or in response to determining that the switching time of the first frequency band pair formed by the first frequency band and the third frequency band is less than the switching time of the second frequency band pair formed by the second frequency band and the third frequency band, it is determined to switch the first antenna to the third frequency band.

[0085] It should be noted that before step S501 is performed, the terminal may first report to the base station the frequency bands supported by it and its own capabilities. Correspondingly, the base station may also determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band.

[0086] For example, taking three frequency bands n1, n22, and n23 supported by a terminal as an example, where n1 is the first frequency band, n22 is the second frequency band, and n23 is the third frequency band, the third frequency band can be configured with the first and second frequency bands to form two frequency band pairs, (n1, n23) and (n22, n23). Furthermore, based on the switching time between n1 and n23 and the switching time between n22 and n23 in the two frequency band pairs (n1, n23) and (n22, n23), it is determined that the antenna with the longer or shorter switching time is to be switched to the third frequency band. For example, if the switching time between n1 and n23 is 3 and the switching time between n22 and n23 is 5, it can be determined that the first antenna corresponding to n1, which has the shorter switching time, is to be switched to the third frequency band.

[0087] If the terminal selects the means for switching the antenna corresponding to the short switching time to the third frequency band, the base station will synchronously select this means, i.e., the base station will determine that the terminal switches the antenna corresponding to the short switching time to the third frequency band and communicate with this antenna based on the third frequency band. The same applies when the terminal selects the means for switching the antenna corresponding to the long switching time to the third frequency band.

[0088] In an embodiment of the present disclosure, when a terminal receives RRC signaling to instruct single antenna switching, the terminal determines an antenna to switch to the third frequency band with a longer or shorter switching time in the next transmission based on the switching time of a frequency band pair consisting of the third frequency band of the next transmission and the frequency band associated with the current antenna, and can reliably determine the antenna to switch to the third frequency band.

[0089] FIG. 6 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal, and as shown in FIG. 5, the method includes the following steps 601-602.

[0090] In S601, in response to receiving RRC signaling for instructing single antenna switching transmitted by a base station, where a first antenna of a terminal is in a first frequency band, a second antenna is in a second frequency band, and a next transmission is to be performed in a third frequency band, a switching time of a first frequency band pair formed by the first frequency band and the third frequency band, and a switching time of a second frequency band pair formed by the second frequency band and the third frequency band, is determined.

[0091] In S602, in response to determining that the switching time of the first frequency band pair formed by the first frequency band and the third frequency band is equal to the switching time of the second frequency band pair formed by the second frequency band and the third frequency band, a decision is made to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on the frequency points of the first frequency band and the frequency points of the second frequency band.

[0092] The frequency point corresponding to each frequency band may be the center frequency point corresponding to this frequency band, or may be the maximum frequency point or minimum frequency point of this frequency band, and the present disclosure is not limited thereto.

[0093] Note that before step S501 is performed, the terminal may first report to the base station the frequency bands supported by it and its own capabilities. Correspondingly, the base station may also determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band and the frequency point of the first frequency band and the second frequency band.

[0094] For example, taking three frequency bands n1, n22, and n23 supported by a terminal as an example, where n1 is the first frequency band, n22 is the second frequency band, and n23 is the third frequency band, the third frequency band can form two frequency band pairs (n1, n23) and (n22, n23) with the first and second frequency bands. If the switching times of the two frequency band pairs (n1, n23) and (n22, n23) are equal, it can be determined to switch the first antenna or the second antenna to the third frequency band based on the frequency points n1 and n22.

[0095] In an embodiment of the present disclosure, when a terminal receives RRC signaling to instruct single antenna switching, if the switching times of the frequency band pair formed by the third frequency band of the next transmission and the frequency band associated with the current antenna are the same, the terminal can determine the antenna to switch to the third frequency band in the next transmission based on the frequency points of the first frequency band and the second frequency band, and can reliably determine the antenna to switch to the third frequency band.

[0096] FIG. 7 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal, and as shown in FIG. 5, the method includes the following steps 701 to 703.

[0097] In S701, in response to receiving RRC signaling for instructing single antenna switching transmitted by a base station, where a first antenna of a terminal is in a first frequency band, a second antenna is in a second frequency band, and a next transmission is to be performed in a third frequency band, a switching time of a first frequency band pair formed by the first frequency band and the third frequency band, and a switching time of a second frequency band pair formed by the second frequency band and the third frequency band, is determined.

[0098] In S702, in response to determining that the switching time of the first frequency band pair formed by the first frequency band and the third frequency band is equal to the switching time of the second frequency band pair formed by the second frequency band and the third frequency band, a frequency point of the first frequency band and a frequency point of the second frequency band are determined.

[0099] In S703, in response to determining that the frequency points of the first frequency band are greater than the frequency points of the second frequency band, it is determined to switch the first antenna to the third frequency band; in response to determining that the frequency points of the second frequency band are greater than the frequency points of the first frequency band, it is determined to switch the second antenna to the third frequency band; or in response to determining that the frequency points of the first frequency band are smaller than the frequency points of the second frequency band, it is determined to switch the first antenna to the third frequency band; and in response to determining that the frequency points of the second frequency band are smaller than the frequency points of the first frequency band, it is determined to switch the second antenna to the third frequency band.

[0100] Note that each frequency band in the above embodiment may be a frequency range or a frequency value. The frequency point corresponding to each frequency band may be a frequency value in the corresponding frequency range, for example, the center frequency point corresponding to the frequency band, or the maximum frequency point or the minimum frequency point of the frequency band. Alternatively, if a specific frequency band has a frequency value, the frequency point of the frequency band may be this frequency value, and the present disclosure does not limit this. Note that before step S701 is performed, the terminal may first report to the base station the frequency bands supported by it and its own capabilities. Correspondingly, the base station may determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band and the frequency points of the first frequency band and the second frequency band.

[0101] For example, taking three frequency bands n1, n22, and n23 supported by a terminal as an example, where n1 is the first frequency band, n22 is the second frequency band, and n23 is the third frequency band, the third frequency band can form two frequency band pairs (n1, n23) and (n22, n23) with the first and second frequency bands. If the switching times of the two frequency band pairs (n1, n23) and (n22, n23) are equal, it can be determined to switch the first antenna or the second antenna to the third frequency band based on the frequency points n1 and n22.

[0102] In one embodiment, if the frequency point of n1 is greater than the frequency point of n2, the first antenna corresponding to n1 can be switched to a third frequency band n23.

[0103] In another embodiment, if the frequency band of n1 is greater than the frequency band of n2, the second antenna corresponding to n2 can be switched to a third frequency band n23.

[0104] The above two embodiments can be selected according to specific needs, and are not specifically limited in the present disclosure. Correspondingly, when any one embodiment is selected, the base station selects the corresponding embodiment; that is, when the first embodiment is selected, the base station can default when the terminal switches the first antenna to the third frequency band after sending RRC signaling to instruct this single antenna switching.

[0105] In an embodiment of the present disclosure, when a terminal receives RRC signaling to instruct single antenna switching, if the switching times of the frequency band pair formed by the third frequency band of the next transmission and the frequency band associated with the current antenna are the same, the terminal determines the antenna to switch to the third frequency band in the next transmission based on the magnitude relationship of the frequency points between the first frequency band and the second frequency band, and can reliably determine the antenna to switch to the third frequency band.

[0106] FIG. 8 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 8, the method includes the following steps 801 to 803.

[0107] In S801, in response to receiving RRC signaling for instructing single antenna switching transmitted by a base station, where a first antenna of a terminal is in a first frequency band, a second antenna is in a second frequency band, and a next transmission is to be performed in a third frequency band, a switching time of a first frequency band pair formed by the first frequency band and the third frequency band, and a switching time of a second frequency band pair formed by the second frequency band and the third frequency band, is determined.

[0108] In S802, in response to determining that the switching time of the first frequency band pair formed by the first frequency band and the third frequency band is equal to the switching time of the second frequency band pair formed by the second frequency band and the third frequency band, a frequency point of the first frequency band and a frequency point of the second frequency band are determined.

[0109] In S803, in response to determining that the first difference is smaller than the second difference, it is determined to switch the first antenna to a third frequency band; in response to determining that the second difference is smaller than the first difference, it is determined to switch the second antenna to the third frequency band; or in response to determining that the first difference is larger than the second difference, it is determined to switch the first antenna to the third frequency band; in response to determining that the second difference is larger than the first difference, it is determined to switch the second antenna to the third frequency band, wherein the first difference is an absolute value of a difference between a frequency point in the first frequency band and a frequency point in the third frequency band, and the second difference is an absolute value of a difference between a frequency point in the second frequency band and a frequency point in the third frequency band.

[0110] The frequency point corresponding to each frequency band may be the center frequency point corresponding to this frequency band, or may be the maximum frequency point or minimum frequency point of this frequency band, and the present disclosure is not limited thereto.

[0111] Note that, before step S801 is performed, the terminal may first report to the base station the frequency bands supported by it and its own capabilities. Correspondingly, the base station may also determine that the terminal switches the first antenna to the third frequency band or switches the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band and the frequency point of the first frequency band and the second frequency band.

[0112] For example, taking three frequency bands n1, n22, and n23 supported by a terminal as an example, where n1 is the first frequency band, n22 is the second frequency band, and n23 is the third frequency band, the third frequency band can form two frequency band pairs (n1, n23) and (n22, n23) with the first and second frequency bands. If the switching times of the two frequency band pairs (n1, n23) and (n22, n23) are equal, it can be determined to switch the first antenna or the second antenna to the third frequency band based on the frequency points n1 and n22.

[0113] In one embodiment, if the distance between the frequency point of n1 and the frequency point of n23 is greater than the distance between the frequency point of n2 and the frequency point of n23, the first antenna corresponding to n1 can be switched to the third frequency band n23.

[0114] In another embodiment, if the distance between the frequency point of n1 and the frequency point of n23 is greater than the distance between the frequency point of n2 and the frequency point of n23, the second antenna corresponding to n2 can be switched to the third frequency band n23.

[0115] The above two embodiments can be selected according to specific needs, and are not specifically limited in the present disclosure. Correspondingly, when any one embodiment is selected, the base station selects the corresponding embodiment; that is, when the first embodiment is selected, the base station can default when the terminal switches the first antenna to the third frequency band after sending RRC signaling to instruct this single antenna switching.

[0116] In an embodiment of the present disclosure, when a terminal receives RRC signaling to instruct single antenna switching, if the switching times of the frequency band pair formed by the third frequency band of the next transmission and the frequency band associated with the current antenna are the same, the terminal determines the antenna to switch to the third frequency band in the next transmission based on the relative magnitude relationship between the frequency points of the first and second frequency bands and the frequency points of the third frequency band, and can reliably determine the antenna to switch to the third frequency band.

[0117] In one embodiment, in response to the terminal receiving RRC signaling for instructing single antenna switching or the base station transmitting RRC signaling for instructing single antenna switching, the terminal performs the following.

[0118] For the terminal, if there is one Tx in the first band, another one Tx in the second band, and the next transmission is a 1P transmission in the third band, and the base station sets the RRC signaling instruction to oneT, the terminal will switch the one Tx in the band with the shortest switching time among the bands paired with the third band to the third band.

[0119] If the switching time between the first band and the third band is the same as the switching time between the second band and the third band, the band with the lower or higher frequency point is selected by default, and one Tx of the selected band is switched to the third band.

[0120] For the base station, if one Tx is in the first band, another one Tx is in the second band, and the next transmission is a 1P transmission in the third band, and the base station sets the RRC signaling indication to oneT, the base station assumes that the terminal switches the one Tx in the band with the shorter switching time among the bands paired with the third band to the third band. If the switching time between the first band and the third band is the same as the switching time between the second band and the third band, it assumes that the terminal selects a band with a lower or higher frequency point by default and switches the one Tx in the selected band to the third band.

[0121] In another embodiment, in response to the terminal receiving RRC signaling for instructing single antenna switching or the base station transmitting RRC signaling for instructing single antenna switching, the terminal performs the following.

[0122] For the terminal, if there is 1Tx in the first band, another 1Tx in the second band, and the next transmission is a 1P transmission in the third band, and the base station sets the RRC signaling instruction to oneT, the terminal will maintain the 1Tx in the band with the longest switching time among the bands paired with the third band.

[0123] If the switching time between the first band and the third band is the same as the switching time between the second band and the third band, the band with the lower or higher frequency point is selected by default, and 1Tx of the selected band is maintained.

[0124] For the base station, if there is one Tx in the first band, another one Tx in the second band, and the next transmission is a 1P transmission in the third band, and the base station sets the RRC signaling indication to oneT, the base station assumes that the terminal maintains one Tx in the band with the longest switching time among the bands paired with the third band. If the switching time between the first band and the third band is the same as the switching time between the second band and the third band, it assumes that the terminal selects the higher band with a lower frequency point by default and maintains one Tx in the selected band.

[0125] In another embodiment, in response to receiving RRC signaling to indicate single antenna switching, the terminal:

[0126] For the terminal, if there is one Tx in the first band, another one Tx in the second band, and the next transmission is a 1P transmission in the third band, and the base station sets the RRC signaling instruction to oneT, the terminal will switch the one Tx in the band with the shortest switching time among the bands paired with the third band to the third band.

[0127] If the switching time between the first band and the third band is the same as the switching time between the second band and the third band, the band whose frequency focus is close to or far from the third band is selected by default, and one Tx of the selected band is switched to the third band.

[0128] In another embodiment, in response to receiving RRC signaling to indicate single antenna switching, the terminal:

[0129] For the terminal, if there is 1Tx in the first band, another 1Tx in the second band, and the next transmission is a 1P transmission in the third band, and the base station sets the RRC signaling instruction to oneT, the terminal will maintain the 1Tx in the band with the longest switching time among the bands paired with the third band.

[0130] If the switching time between the first band and the third band is the same as the switching time between the second band and the third band, the band whose frequency point is closer or farther from the third band is selected by default, and one Tx of the selected band is switched to the third band.

[0131] In the related art, no research has been conducted on the switching time for special uplink antenna switching modes. However, some of the switching modes may require longer switching times. Therefore, how to limit the switching times for these special switching modes and ensure the reliability of communication between the terminal and the base station is an issue that needs to be resolved urgently.

[0132] FIG. 9 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 9, the method includes the following step 901:

[0133] In S901, a special switching mode requiring additional switching time is reported to the base station.

[0134] It should be noted that this additional switching time is included in the overall process time of uplink antenna switching. In addition, the special switching mode can include multiple types of modes, and this special switching mode can be defined according to actual needs, and this disclosure is not limited thereto.

[0135] In one example, each switching mode corresponds to the same additional switching time.

[0136] This additional switching time can be reported to the base station by the terminal or can be preset in the base station, and the present disclosure is not limited thereto.

[0137] In one example, the additional switching time is a number of time domain symbols, and the time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, which corresponds to a first bandwidth part (BWP) in the frequency band in which the antenna is located before switching.

[0138] Accordingly, during the additional switching time, the first bandwidth portion can be used as the reference bandwidth portion, and settings such as the sub-carrier space (SCS) of this reference bandwidth portion can be reused.

[0139] It should be noted that the granularity of this additional switching time may be a time domain symbol, i.e. the length of this additional switching time may be represented by a time domain symbol.

[0140] Alternatively, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

[0141] In an embodiment of the present disclosure, by reporting a special switching mode that requires additional switching time to a base station, the terminal can synchronize with the base station when switching uplink antennas in the special mode, and further ensure reliable communication between the terminal and the base station.

[0142] FIG. 10 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal, and as shown in FIG. 9, the method includes the following steps 1001 to 1002.

[0143] In S1001, a special switching mode requiring additional switching time is reported to the base station, and each special switching mode corresponds to a different additional switching time.

[0144] In S1002, the additional switching time corresponding to each special switching mode is reported.

[0145] It should be noted that this additional switching time is included in the overall process time of uplink antenna switching. In addition, the special switching mode can include multiple types of modes, and this special switching mode can be defined according to actual needs, and this disclosure is not limited thereto.

[0146] Illustratively, in step S1002, the terminal may report a first time corresponding to a first special mode, a second time corresponding to a second special mode, and so on.

[0147] In one example, the additional switching time is a number of time domain symbols, and the time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, which corresponds to a first bandwidth part (BWP) in the frequency band in which the antenna is located before switching.

[0148] Accordingly, during the additional switching time, the first bandwidth portion can be used as the reference bandwidth portion, and settings such as the sub-carrier space (SCS) of this reference bandwidth portion can be reused.

[0149] It should be noted that the granularity of this additional switching time may be a time domain symbol, i.e. the length of this additional switching time may be represented by a time domain symbol.

[0150] Alternatively, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

[0151] In the embodiment of the present disclosure, by reporting to the base station the special switching modes that require additional switching time and the additional switching time corresponding to each special switching mode, the terminal can synchronize with the base station when switching the uplink antenna for the special mode, and further ensure reliable communication between the terminal and the base station.

[0152] FIG. 11 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 11, the method includes the following step 1101:

[0153] In S1101, the additional switching time is reported to the base station, and the additional switching time is used by the base station to apply the additional switching time to all predefined special switching modes.

[0154] It should be noted that this additional switching time is included in the overall process time of uplink antenna switching. In addition, the special switching mode can include multiple types of modes, and this special switching mode can be defined according to actual needs, and this disclosure is not limited thereto.

[0155] Illustratively, when the special switching mode includes a first special mode and a second special mode, the terminal may report the additional switching time and then perform uplink antenna switching between the first special mode and the second special mode according to the additional switching time.

[0156] In one example, the additional switching time is a number of time domain symbols, and the time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, which corresponds to a first bandwidth part (BWP) in the frequency band in which the antenna is located before switching.

[0157] Accordingly, during the additional switching time, the first bandwidth portion can be used as the reference bandwidth portion, and settings such as the sub-carrier space (SCS) of this reference bandwidth portion can be reused.

[0158] It should be noted that the granularity of this additional switching time may be a time domain symbol, i.e. the length of this additional switching time may be represented by a time domain symbol.

[0159] Alternatively, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

[0160] In the embodiments of the present disclosure, the additional switching time is reported to the base station and applied to all predefined special switching modes, so that when the terminal performs uplink antenna switching in the special mode, it can synchronize with the base station and further ensure reliable communication between the terminal and the base station.

[0161] In an alternative embodiment, the additional switching time is included in the time of the entire process of uplink antenna switching. The reporting granularity of the additional switching time is N time domain symbols, and the first BWP in the first band is used as a reference BWP, and settings such as SCS are reused. The means for determining the first BWP includes the following means 1 to 5. Method 1: The most recently activated BWP. Measure 2: Early BWP. Measure 3: First activated BWP. Measure 4: BWP with the highest or lowest center frequency point. Measure 5: SCS has the largest or smallest BWP.

[0162] The means by which the terminal reports the special switching mode includes at least one of the following: Method 1: Report special switching modes that require additional switching time, and all the reported special switching modes share one additional switching time. Method 2: Report special switching modes that require additional switching time, where each special switching mode corresponds to one additional switching time, e.g., {first special mode, first time}, {second special mode, second time}. Means 3: A special switching mode is predefined based on a communication protocol, and the terminal reports at least one additional switching time, and the reported additional switching time is applied to the predefined special switching mode based on all communication protocols.

[0163] FIG. 12 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 11, the method includes the following steps 1201 to 1202.

[0164] In S1201, receive optional information corresponding to a frequency band combination reported by a terminal, with a frequency band combination as a granularity, where the frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands.

[0165] In S1202, a transmission format supported by each frequency band pair and / or each frequency band in the frequency band combination is determined based on the option information.

[0166] The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0167] Note that, before step S1201, the terminal reports the frequency bands supported by the terminal and its own capabilities to the base station, thereby allowing the base station to grasp the frequency bands supported by the terminal and its own capabilities. A frequency band combination may include multiple frequency bands supported by the terminal. Using the frequency band combination as the granularity means that the base station receives the frequency bands supported by the terminal in the frequency band combination transmitted by the terminal, with the frequency band combination being the smallest unit.

[0168] In a specific implementation, the frequency band combination may include three, four, or more frequency bands. For example, the frequency band combination may include three frequency bands, n1, n22, and n23, supported by this terminal. Correspondingly, the frequency band combination may include three frequency band pairs, (n1, n22), (n1, n23), and (n22, n23), supported by the terminal.

[0169] In an embodiment of the present disclosure, optional information corresponding to a frequency band combination is reported to a base station using a frequency band combination as a granularity, so that the base station can grasp the frequency bands supported by the terminal and the transmission modes supported by each frequency band and frequency band pair based on the optional information reported by the terminal. This allows the base station to effectively grasp the uplink antenna switching capability of the terminal and ensure the reliability of the terminal's uplink antenna and frequency band switching.

[0170] FIG. 13 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 13, the method includes the following steps 1301 to 1304.

[0171] In S1301, receive optional information corresponding to a frequency band combination reported by a terminal, with a frequency band combination as a granularity, where the frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands.

[0172] In S1302, if the option information corresponding to the frequency band combination is dualUL, it is determined that all frequency band pairs in the frequency band combination support only simultaneous transmission.

[0173] In S1303, if the option information corresponding to the frequency band combination is switchedUL, it is determined that all frequency bands in the frequency band combination support only single transmission.

[0174] In S1304, if the option information corresponding to the frequency band combination is both, it is determined that at least one frequency band pair in the frequency band combination supports simultaneous transmission and at least one frequency band in the frequency band combination supports single transmission.

[0175] The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0176] Note that, before step S1301, the terminal reports the frequency bands supported by the terminal and its own capabilities to the base station, thereby allowing the base station to grasp the frequency bands supported by the terminal and its own capabilities. A frequency band combination may include multiple frequency bands supported by the terminal. Using the frequency band combination as the granularity means that the base station receives the frequency bands supported by the terminal in the frequency band combination transmitted by the terminal, with the frequency band combination being the smallest unit.

[0177] In a specific implementation, the frequency band combination may include three, four, or more frequency bands. For example, the frequency band combination may include three frequency bands, n1, n22, and n23, supported by this terminal. Correspondingly, the frequency band combination may include three frequency band pairs, (n1, n22), (n1, n23), and (n22, n23), supported by the terminal.

[0178] In one example, if the optional information corresponding to the frequency band combination is dualUL, the base station can determine that all frequency band pairs in the frequency band combination support only simultaneous transmission; if the optional information corresponding to the frequency band combination is switchedUL, the base station can determine that all frequency bands in the frequency band combination support only single transmission; if the optional information corresponding to the frequency band combination is both, the optional information indicates that at least one frequency band pair in the frequency band combination supports simultaneous transmission and at least one frequency band in the frequency band combination supports single transmission.

[0179] The optional information may be one of three options: dualUL, switchedUL, or both. The terminal may report the optional information of dualUL, switchedUL, or both based on its own capabilities. For example, if a frequency band pair consisting of frequency bands supported by the terminal's antennas cannot support simultaneous transmission, the terminal may report the optional information of switchedUL to the base station.

[0180] In addition, in a frequency band combination, a frequency band pair formed by some frequency bands supporting single transmission and other frequency bands may or may not support simultaneous transmission, and this disclosure is not limited thereto. For example, assuming that a frequency band combination includes three frequency bands n1, n22, and n23 supported by this terminal, if n1 supports single transmission, the frequency band pair formed by it and n22 may support simultaneous transmission, but the frequency band pair formed by it and n23 may not support simultaneous transmission.

[0181] In an embodiment of the present disclosure, optional information corresponding to a frequency band combination is reported to a base station using a frequency band combination as a granularity, so that the base station can grasp the frequency bands supported by the terminal and the transmission modes supported by each frequency band and frequency band pair based on the optional information reported by the terminal. This allows the base station to effectively grasp the uplink antenna switching capability of the terminal and ensure the reliability of the terminal's uplink antenna and frequency band switching.

[0182] FIG. 14 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 14, the method includes the following steps 1401 to 1402.

[0183] In S1401, support information corresponding to at least one frequency band pair in the frequency band combination is received, and the support information corresponding to the at least one frequency band pair is reported by the terminal in response to the terminal determining that the optional information corresponding to the frequency band combination is both.

[0184] At S1402, a transmission mode supported by the corresponding frequency band pair is determined based on support information corresponding to the at least one frequency band pair.

[0185] The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0186] In one example, before step S1401, optional information corresponding to the frequency band combination reported by the terminal may be received, and if it is determined that the optional information is both, step S1401 and subsequent steps may be executed.

[0187] Note that, before step S1401, the terminal reports the frequency bands supported by the terminal and its own capabilities to the base station, so that the base station can grasp the frequency bands supported by the terminal and its own capabilities. A frequency band combination may include multiple frequency bands supported by the terminal. Using the frequency band combination as the granularity means that the base station receives the frequency bands supported by the terminal in the frequency band combination transmitted by the terminal, with the frequency band combination being the smallest unit.

[0188] In a specific implementation, the frequency band combination may include three, four, or more frequency bands. For example, the frequency band combination may include three frequency bands, n1, n22, and n23, supported by this terminal. Correspondingly, the frequency band combination may include three frequency band pairs, (n1, n22), (n1, n23), and (n22, n23), supported by the terminal.

[0189] In an embodiment of the present disclosure, when some frequency band pairs in a frequency band combination support simultaneous transmission and some frequency bands in the frequency band combination support single transmission, by receiving at least one corresponding support information reported by the terminal, the uplink antenna switching capability of the terminal can be grasped, and the reliability of the uplink antenna and frequency band switching of the terminal can be ensured while the amount of information to be reported can be reduced.

[0190] FIG. 15 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 15, the method includes the following steps 1501 to 1504.

[0191] In S1501, support information corresponding to at least one frequency band pair in the frequency band combination is received, and the support information corresponding to the at least one frequency band pair is reported by the terminal in response to the terminal determining that the optional information corresponding to the frequency band combination is both.

[0192] In S1502, if the support information corresponding to one frequency band pair among the at least one frequency band pair is simultaneous transmission, it is determined that this frequency band pair supports only simultaneous transmission.

[0193] In S1503, if the support information corresponding to one frequency band pair among the at least one frequency band pair is single transmission, determine that the two frequency bands in this frequency band pair only support single transmission.

[0194] In S1504, if the support information corresponding to one frequency band pair among the at least one frequency band pair is full transmission, it is determined that the frequency band pair supports simultaneous transmission and that two frequency bands in the frequency band pair support single transmission.

[0195] The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0196] In one example, before step S1501, optional information corresponding to the frequency band combination reported by the terminal may be received, and if it is determined that the optional information is both, step S1501 and subsequent steps may be executed.

[0197] Note that, before step S1501, the terminal reports the frequency bands supported by the terminal and its own capabilities to the base station, so that the base station can grasp the frequency bands supported by the terminal and its own capabilities. A frequency band combination may include multiple frequency bands supported by the terminal. Using the frequency band combination as the granularity means that the base station receives the frequency bands supported by the terminal in the frequency band combination transmitted by the terminal, with the frequency band combination being the smallest unit.

[0198] In a specific implementation, the frequency band combination may include three, four, or more frequency bands. For example, the frequency band combination may include three frequency bands, n1, n22, and n23, supported by this terminal. Correspondingly, the frequency band combination may include three frequency band pairs, (n1, n22), (n1, n23), and (n22, n23), supported by the terminal.

[0199] The support information may be one of three options: dualUL, switchedUL, or both. If the support information is dualUL, the support information may be simultaneous transmission. If the support information is switchedUL, the support information may be single transmission. If the support information is both, the support information may be full transmission.

[0200] For example, take the frequency band combination as an example, which includes three frequency bands n1, n22, and n23 supported by the terminal. Correspondingly, the frequency band combination may include three frequency band pairs (n1, n22), (n1, n23), and (n22, n23) supported by the terminal. If the support information corresponding to (n1, n22) is dualUL, this support information indicates that this frequency band pair only supports simultaneous transmission. If the support information corresponding to (n1, n23) is switchedUL, this support information indicates that this frequency band pair only supports single transmission. If the support information corresponding to (n22, n23) is both, this support information indicates that this frequency band pair supports simultaneous transmission, and the two frequency bands in this frequency band pair support single transmission.

[0201] In the embodiments of the present disclosure, when some frequency band pairs in a frequency band combination support simultaneous transmission and some frequency bands in the frequency band combination support single transmission, at least one corresponding support information is reported, so that the base station can grasp the uplink antenna switching capability of the terminal, and the reliability of the uplink antenna and frequency band switching of the terminal can be ensured while reducing the amount of information to be reported.

[0202] In one example, the support information corresponding to at least one frequency band pair includes support information corresponding to at least three frequency band pairs, the number of the at least three frequency band pairs being less than or equal to the number of frequency band pairs included in the frequency band combination, and the support information corresponding to two target frequency band pairs of the at least three frequency band pairs being first support information and second support information, respectively.

[0203] In one embodiment, the target frequency band pair is any two frequency band pairs of the at least three frequency band pairs.

[0204] The base station may determine the order of each frequency band pair in the frequency band combination reported by the terminal based on information previously reported by the terminal or based on a predefined order. Since the support information for the two target frequency band pairs is the first support information and the second support information, respectively, the completeness of the transmission format of the frequency band combination reported by the terminal is ensured to some extent. Therefore, in this case, for frequency band pairs for which support information is not reported, the base station may default to the fact that these frequency band pairs only support simultaneous transmission, or may default to the fact that the frequency bands in these frequency band pairs only support single transmission, and this disclosure is not limited thereto.

[0205] In one embodiment, the target frequency band pair is the first two frequency band pairs in the at least three frequency band pairs in order, or the last two frequency band pairs in the at least three frequency band pairs.

[0206] For example, if the at least three frequency band pairs include three frequency band pairs, namely (n1, n22), (n1, n23), and (n22, n23), there may be a specific order when the terminal reports support information corresponding to each frequency band pair in the frequency band combination to the base station. Illustratively, if the terminal determines based on its own capabilities that the frequency band pair (n1, n22) only supports simultaneous transmission and the frequency band pair (n1, n23) only supports single transmission, it can define these two frequency band pairs as the first two frequency band pairs or the last two frequency band pairs. If defined as the first two frequency band pairs, the terminal can further sequentially transmit support information corresponding to the three frequency band pairs, namely (n1, n22), (n1, n23), and (n22, n23), and the support information corresponding to (n1, n22) and (n1, n23) can respectively support simultaneous transmission and single transmission.

[0207] Optionally, support information corresponding to other frequency band pairs among the support information corresponding to the at least one frequency band pair is determined by the terminal based on its own capability, and the other frequency band pairs are frequency band pairs among the at least three frequency band pairs excluding the target frequency band pair.

[0208] Alternatively, the first support information is a single transmission and the second support information is a simultaneous transmission, or the first support information is a simultaneous transmission and the second support information is a single transmission.

[0209] For example, the frequency band combination may include three frequency bands n1, n22, and n23 supported by the terminal. Correspondingly, the frequency band combination may include three frequency band pairs (n1, n22), (n1, n23), and (n22, n23) supported by the terminal. The terminal may predefine (n1, n22) and (n1, n23) as dualUL and switchedUL, respectively, or may predefine (n1, n23) and (n22, n23) as switchedUL and dualUL.

[0210] Note that the terminal predefines the first two frequency band pairs or the last two frequency band pairs as the first support information and the second support information only when the terminal determines, based on its own capabilities, that the first two frequency band pairs or the last two frequency band pairs support the first support information and the second support information. For example, the terminal determines (n1, n22) and (n1, n23) as the first two frequency band pairs only when it determines that (n1, n22) supports only simultaneous transmission and (n1, n23) supports only single transmission. Correspondingly, the base station can determine which two frequency bands form the first two frequency band pairs or the last two frequency band pairs based on its own capabilities and supported frequency bands reported by the terminal.

[0211] In this example, the base station receives support information for at least three frequency band pairs that have the same support information in the frequency band combination, so that it can determine the transmission mode supported by each frequency band pair without receiving support information corresponding to each frequency band pair. This allows the base station to effectively determine the uplink antenna switching capability of the terminal, ensuring the reliability of the terminal's uplink antenna and frequency band switching while reducing the amount of information to be reported.

[0212] FIG. 16 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 15, the method includes the following steps 1601 to 1602.

[0213] In S1601, support information corresponding to at least one frequency band pair in the frequency band combination is received, and the support information corresponding to the at least one frequency band pair is reported in response to the terminal determining that the optional information corresponding to the frequency band combination is both, where the number of the at least one frequency band pair is less than or equal to the number of frequency band pairs included in the frequency band combination, and among the support information corresponding to the at least one frequency band pair, the support information corresponding to each frequency band pair is the same and is third support information.

[0214] In S1602, if the third support information is simultaneous transmission, it is determined that at least one frequency band pair in the frequency band combination only supports simultaneous transmission, and all frequency band pairs except at least one frequency band pair only support single transmission; or if the third support information is full transmission, it is determined that at least one frequency band pair in the frequency band combination supports both simultaneous transmission and single transmission, and all frequency band pairs except at least one frequency band pair only support single transmission; or if the third support information is single transmission, it is determined that at least one frequency band pair in the frequency band combination only supports single transmission, and all frequency band pairs except at least one frequency band pair only support simultaneous transmission, or all frequency band pairs except at least one frequency band pair support both simultaneous transmission and single transmission.

[0215] Whether the third support information is simultaneous communication, full transmission, or single transmission can be determined based on the terminal's own capability.

[0216] The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0217] In one example, before step S1601, optional information corresponding to the frequency band combination reported by the terminal may be received, and if it is determined that the optional information is both, step S1501 and subsequent steps may be executed.

[0218] Note that, before step S1601, the terminal reports the frequency bands supported by the terminal and its own capabilities to the base station, so that the base station can grasp the frequency bands supported by the terminal and its own capabilities. A frequency band combination may include multiple frequency bands supported by the terminal. Using the frequency band combination as the granularity means that the base station receives the frequency bands supported by the terminal in the frequency band combination transmitted by the terminal, with the frequency band combination being the smallest unit.

[0219] In a specific implementation, the frequency band combination may include three, four, or more frequency bands. For example, the frequency band combination may include three frequency bands, n1, n22, and n23, supported by this terminal. Correspondingly, the frequency band combination may include three frequency band pairs, (n1, n22), (n1, n23), and (n22, n23), supported by the terminal.

[0220] The support information may be one of three options: dualUL, switchedUL, or both. If the support information is dualUL, the support information may be simultaneous transmission. If the support information is switchedUL, the support information may be single transmission. If the support information is both, the support information may be full transmission.

[0221] For example, assume that the frequency band combination includes three frequency bands n1, n22, and n23 supported by the terminal. Correspondingly, the frequency band combination may include three frequency band pairs (n1, n22), (n1, n23), and (n22, n23) supported by the terminal. If (n1, n22) and (n1, n23) only support simultaneous transmission, the terminal may report support information corresponding to (n1, n22) and (n1, n23), i.e., third support information for simultaneous transmission or dual UL, and the base station may determine that the unreported frequency band pair (n22, n23) only supports single transmission.

[0222] In an embodiment of the present disclosure, a base station receives support information for at least one frequency band pair among frequency band pairs having the same support information in a frequency band combination, so that the base station can grasp the transmission mode supported by each frequency band pair without receiving support information corresponding to each frequency band pair. This allows the base station to effectively grasp the uplink antenna switching capability of a terminal, ensure the reliability of the terminal's uplink antenna and frequency band switching, and reduce the amount of information to be reported.

[0223] FIG. 17 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 17, the method includes the following step 1701:

[0224] In S1701, RRC signaling for instructing single antenna switching is transmitted, and the RRC signaling is used to instruct a terminal to determine, when a first antenna is in a first frequency band, a second antenna is in a second frequency band, and a next transmission is to be performed in a third frequency band, to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band.

[0225] The third frequency band for the next transmission may be conveyed by this RRC signaling or by other signaling, and this disclosure does not limit this.

[0226] Note that before step S401 is performed, the terminal may first report to the base station the frequency bands supported by it and its own capabilities. Correspondingly, the base station may also determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band.

[0227] For example, taking three frequency bands n1, n22, and n23 supported by a terminal as an example, where n1 is the first frequency band, n22 is the second frequency band, and n23 is the third frequency band, the third frequency band can form two frequency band pairs (n1, n23) and (n22, n23) with the first and second frequency bands. Furthermore, it is determined whether to switch to n23 as the first antenna or the second antenna based on the switching time between n1 and n23 and the switching time between n22 and n23 in the two frequency band pairs (n1, n23) and (n22, n23).

[0228] In an embodiment of the present disclosure, when a terminal receives RRC signaling to instruct single antenna switching, the terminal determines the antenna to switch to the third frequency band in the next transmission based on the switching time of the frequency band pair formed by the third frequency band of the next transmission and the frequency band associated with the current antenna, and can reliably determine the antenna to switch to the third frequency band.

[0229] In one example, the terminal determines to switch the first antenna to the third frequency band in response to determining that a switching time of a first frequency band pair formed by the first frequency band and the third frequency band is greater than a switching time of a second frequency band pair formed by the second frequency band and the third frequency band, or determines to switch the first antenna to the third frequency band in response to determining that a switching time of the first frequency band pair formed by the first frequency band and the third frequency band is less than a switching time of the second frequency band pair formed by the second frequency band and the third frequency band.

[0230] Correspondingly, the base station can determine that the terminal switches the first antenna to the third frequency band or switches the second antenna to the third frequency band based on the length of the switching time of the frequency band pair formed with the third frequency band.

[0231] In another example, when the terminal determines that the switching time of a first frequency band pair formed of a first frequency band and a third frequency band is equal to the switching time of a second frequency band pair formed of a second frequency band and a third frequency band, in response to determining that the switching time of the first frequency band pair formed of the first frequency band and the third frequency band is equal to the switching time of the second frequency band pair formed of the second frequency band and the third frequency band, the terminal determines to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on the frequency points of the first frequency band and the frequency points of the second frequency band.

[0232] Correspondingly, the base station can also determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band and the frequency points of the first frequency band and the second frequency band.

[0233] In another example, when the terminal determines that the switching time of a first frequency band pair formed by a first frequency band and a third frequency band is equal to the switching time of a second frequency band pair formed by a second frequency band and a third frequency band, the terminal determines to switch the first antenna to the third frequency band in response to determining that the frequency point of the first frequency band is greater than the frequency point of the second frequency band, and determines to switch the second antenna to the third frequency band in response to determining that the frequency point of the second frequency band is greater than the frequency point of the first frequency band, or determines to switch the first antenna to the third frequency band in response to determining that the frequency point of the first frequency band is smaller than the frequency point of the second frequency band, and determines to switch the second antenna to the third frequency band in response to determining that the frequency point of the second frequency band is smaller than the frequency point of the first frequency band.

[0234] Accordingly, the base station can also determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band and the magnitude relationship between the frequency points of the first frequency band and the second frequency band.

[0235] In another example, when it is determined that the switching time of a first frequency band pair formed of a first frequency band and a third frequency band is equal to the switching time of a second frequency band pair formed of a second frequency band and a third frequency band, the terminal determines to switch the first antenna to the third frequency band in response to determining that the first difference is smaller than the second difference, determines to switch the second antenna to the third frequency band in response to determining that the second difference is smaller than the first difference, or determines to switch the first antenna to the third frequency band in response to determining that the first difference is larger than the second difference, and determines to switch the second antenna to the third frequency band in response to determining that the second difference is larger than the first difference, wherein the first difference is an absolute value of a difference between a frequency point of the first frequency band and a frequency point of the third frequency band, and the second difference is an absolute value of a difference between a frequency point of the second frequency band and a frequency point of the third frequency band.

[0236] Correspondingly, the base station may also determine whether the terminal switches the first antenna to the third frequency band or the second antenna to the third frequency band based on the switching time of the frequency band pair formed with the third frequency band and the correlation between the frequency points of the first frequency band and the second frequency band and the frequency points of the third frequency band.

[0237] FIG. 18 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 18, the method includes the following step 1801:

[0238] In S1801, a special switching mode that requires additional switching time reported by a terminal is received.

[0239] It should be noted that this additional switching time is included in the overall process time of uplink antenna switching. In addition, the special switching mode can include multiple types of modes, and this special switching mode can be defined according to actual needs, and this disclosure is not limited thereto.

[0240] In one example, each switching mode corresponds to the same additional switching time.

[0241] This additional switching time can be reported to the base station by the terminal or can be preset in the base station, and the present disclosure is not limited thereto.

[0242] In one example, the additional switching time is a number of time domain symbols, and the time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, which corresponds to a first bandwidth part (BWP) in the frequency band in which the antenna is located before switching.

[0243] Accordingly, during the additional switching time, the first bandwidth portion can be used as the reference bandwidth portion, and settings such as the sub-carrier space (SCS) of this reference bandwidth portion can be reused.

[0244] It should be noted that the granularity of this additional switching time may be a time domain symbol, i.e. the length of this additional switching time may be represented by a time domain symbol.

[0245] Alternatively, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

[0246] In an embodiment of the present disclosure, by receiving a special switching mode that requires additional switching time reported by a terminal, the terminal can synchronize with a base station when performing uplink antenna switching in the special mode, and further ensure reliable communication between the terminal and the base station.

[0247] FIG. 19 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station, and as shown in FIG. 18, the method includes the following steps 1901 to 1902.

[0248] In S1901, special switching modes requiring additional switching time reported by a terminal are received, and each special switching mode corresponds to a different additional switching time.

[0249] In S1902, additional switching times corresponding to each special switching mode reported by the terminal are received.

[0250] It should be noted that this additional switching time is included in the overall process time of uplink antenna switching. In addition, the special switching mode can include multiple types of modes, and this special switching mode can be defined according to actual needs, and this disclosure is not limited thereto.

[0251] Illustratively, in step S1902, the base station may receive a first time corresponding to a first special mode, a second time corresponding to a second special mode, and so on.

[0252] In one example, the additional switching time is a number of time domain symbols, and the time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, which corresponds to a first bandwidth part (BWP) in the frequency band in which the antenna is located before switching.

[0253] Accordingly, during the additional switching time, the first bandwidth portion can be used as the reference bandwidth portion, and settings such as the sub-carrier space (SCS) of this reference bandwidth portion can be reused.

[0254] It should be noted that the granularity of this additional switching time may be a time domain symbol, i.e. the length of this additional switching time may be represented by a time domain symbol.

[0255] Alternatively, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

[0256] In the embodiment of the present disclosure, by receiving the special switching modes that require additional switching time reported by the terminal and the additional switching time corresponding to each special switching mode, the terminal can synchronize with the base station when performing uplink antenna switching for the special mode, and further ensure reliable communication between the terminal and the base station.

[0257] FIG. 20 is a flowchart of a communication method according to an exemplary embodiment, which is applied to a base station. As shown in FIG. 20, the method includes the following step 2001:

[0258] In S2001, an additional switching time reported by a terminal is received, and the additional switching time is used by the base station to apply the additional switching time to all predefined special switching modes.

[0259] It should be noted that this additional switching time is included in the overall process time of uplink antenna switching. In addition, the special switching mode can include multiple types of modes, and this special switching mode can be defined according to actual needs, and this disclosure is not limited thereto.

[0260] Illustratively, when the special switching mode includes a first special mode and a second special mode, the terminal may report the additional switching time and then perform uplink antenna switching between the first special mode and the second special mode according to the additional switching time.

[0261] In one example, the additional switching time is a number of time domain symbols, and the time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, which corresponds to a first bandwidth part (BWP) in the frequency band in which the antenna is located before switching.

[0262] Accordingly, during the additional switching time, the first bandwidth portion can be used as the reference bandwidth portion, and settings such as the sub-carrier space (SCS) of this reference bandwidth portion can be reused.

[0263] It should be noted that the granularity of this additional switching time may be a time domain symbol, i.e. the length of this additional switching time may be represented by a time domain symbol.

[0264] Alternatively, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

[0265] In the embodiments of the present disclosure, by receiving the additional switching time reported by the terminal and applying it to all predefined special switching modes, when the terminal performs uplink antenna switching in the special mode, it can synchronize with the base station and further ensure reliable communication between the terminal and the base station.

[0266] In some embodiments, the terminal may transmit in a next transmission with one carrier corresponding to one port in a first frequency band and one carrier corresponding to another port in a second frequency band, and the terminal's previous transmission with one carrier corresponding to one port in a third frequency band and one carrier corresponding to another port in a fourth frequency band, and a constraint on the switching time is required to ensure that the amplifier link antennas can be switched from the third and fourth frequency bands to the first and second frequency bands.

[0267] Based on this, a constraint can be placed on the switching period N included in the switching time to ensure reliable switching of the amplifier link antenna. In one embodiment, the switching period N = min{max{N_1&3, N_2&4}, max{N_2&3, N_1&4}}. Or, in another embodiment, the switching period N = max{N_1&3, N_2&4, N_2&3, N_1&4}. Or, in one embodiment, the switching period N = min{{N_1&3 + N_2&4}, {N_2&3 + N_1&4}}.

[0268] In some other embodiments, the switching period N can be set by the base station through signaling, which can include one or more of RRC signaling, MAC Control Element (CE), or Downlink Control Information (DCI). For example, the DCI can carry one bit, which when 0 represents max{N_1&3, N_2&4}, and when 1 represents max{N_2&3, N_1&4}; or, for example, the DCI can carry two bits, which when 00 represents N_1&3, when 01 represents N_2&4, when 10 represents N_2&3, and when 11 represents N_1&4.

[0269] In the above embodiment, N_1&3 is the switching period of the frequency band pair formed by the first frequency band and the second frequency band, N_2&4 is the switching period of the frequency band pair formed by the second frequency band and the fourth frequency band, N_1&4 is the switching period of the frequency band pair formed by the first frequency band and the fourth frequency band, and N_2&3 is the switching period of the frequency band pair formed by the second frequency band and the third frequency band.

[0270] FIG. 21 is a block diagram of a communication device according to an exemplary embodiment, which is applied to a terminal. As shown in FIG. 18, the communication device 2100 includes a reporting module 2101 configured to report optional information corresponding to a frequency band combination to a base station, with a frequency band combination as a granularity, where the frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands, and the optional information is used to indicate a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination.

[0271] Alternatively, if the optional information corresponding to the frequency band combination is dualUL, the optional information indicates that all frequency band pairs in the frequency band combination only support simultaneous transmission; if the optional information corresponding to the frequency band combination is switchedUL, the optional information indicates that all frequency bands in the frequency band combination only support single transmission; if the optional information corresponding to the frequency band combination is both, the optional information indicates that at least one frequency band pair in the frequency band combination supports simultaneous transmission and at least one frequency band in the frequency band combination supports single transmission.

[0272] Optionally, the communication device 2100 includes a first reporting module that, in response to determining that the option information corresponding to the frequency band combination is both, reports support information corresponding to at least one frequency band pair in the frequency band combination to a base station, wherein a frequency band pair among the at least one frequency band pair has a one-to-one correspondence with the support information, and the support information corresponding to the at least one frequency band pair is used to indicate a transmission mode supported by the corresponding frequency band pair.

[0273] Alternatively, if the support information corresponding to one frequency band pair among the at least one frequency band pair is for simultaneous transmission, the support information indicates that the frequency band pair only supports simultaneous transmission; if the support information corresponding to one frequency band pair among the at least one frequency band pair is for single transmission, the support information indicates that two frequency bands in the frequency band pair only support single transmission; if the support information corresponding to one frequency band pair among the at least one frequency band pair is for full transmission, the support information indicates that the frequency band pair supports simultaneous transmission and that the two frequency bands in the frequency band pair support single transmission.

[0274] Optionally, the support information corresponding to at least one frequency band pair includes support information corresponding to at least three frequency band pairs, the number of the at least three frequency band pairs being less than or equal to the number of frequency band pairs included in the frequency band combination, and the support information corresponding to two target frequency band pairs of the at least three frequency band pairs being first support information and second support information, respectively.

[0275] Optionally, support information corresponding to other frequency band pairs among the support information corresponding to the at least one frequency band pair is determined by the terminal based on its own capability, and the other frequency band pairs are frequency band pairs among the at least three frequency band pairs excluding the target frequency band pair.

[0276] Alternatively, the first support information is a single transmission and the second support information is a simultaneous transmission, or the first support information is a simultaneous transmission and the second support information is a single transmission.

[0277] Optionally, the number of the at least one frequency band pair is equal to or less than the number of frequency band pairs included in the frequency band combination, and among the support information corresponding to the at least one frequency band pair, the support information corresponding to each frequency band pair is the same and is third support information.

[0278] Alternatively, the third support information is for simultaneous transmission, and the support information corresponding to at least one frequency band pair is used to indicate that at least one frequency band pair in the frequency band combination only supports simultaneous transmission, and all frequency band pairs except for at least one frequency band pair only support single transmission; or the third support information is for full transmission, and the support information corresponding to at least one frequency band pair is used to indicate that at least one frequency band pair in the frequency band combination supports both simultaneous transmission and single transmission, and all frequency band pairs except for at least one frequency band pair only support single transmission; or the third support information is for single transmission, and the support information corresponding to at least one frequency band pair is used to indicate that at least one frequency band pair in the frequency band combination only supports single transmission, and all frequency band pairs except for at least one frequency band pair only support simultaneous transmission, or all frequency band pairs except for at least one frequency band pair support both simultaneous transmission and single transmission.

[0279] Optionally, the communications device 2100 includes a switching module that receives RRC signaling for instructing single antenna switching transmitted by a base station, and determines, in response to a first antenna of the terminal being in the first frequency band, a second antenna being in the second frequency band, and a next transmission being in the third frequency band, to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band.

[0280] Optionally, the switching module is configured to determine to switch the first antenna to the third frequency band in response to determining that a switching time of a first frequency band pair formed of the first frequency band and the third frequency band is greater than a switching time of a second frequency band pair formed of the second frequency band and the third frequency band, or to determine to switch the first antenna to the third frequency band in response to determining that the switching time of the first frequency band pair formed of the first frequency band and the third frequency band is less than the switching time of the second frequency band pair formed of the second frequency band and the third frequency band.

[0281] Optionally, the switching module is configured to determine, in response to determining that a switching time of a first frequency band pair formed of the first frequency band and the third frequency band is equal to a switching time of a second frequency band pair formed of the second frequency band and the third frequency band, to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on a frequency point of the first frequency band and a frequency point of the second frequency band.

[0282] Optionally, the switching module is configured to: determine to switch the first antenna to the third frequency band in response to determining that a frequency point in the first frequency band is greater than a frequency point in the second frequency band; determine to switch the second antenna to the third frequency band in response to determining that a frequency point in the second frequency band is greater than a frequency point in the first frequency band; or determine to switch the first antenna to the third frequency band in response to determining that a frequency point in the first frequency band is less than a frequency point in the second frequency band; and determine to switch the second antenna to the third frequency band in response to determining that a frequency point in the second frequency band is less than a frequency point in the first frequency band.

[0283] Optionally, the switching module is configured to: determine to switch the first antenna to the third frequency band in response to determining that the first difference is smaller than the second difference; determine to switch the second antenna to the third frequency band in response to determining that the second difference is smaller than the first difference; or determine to switch the first antenna to the third frequency band in response to determining that the first difference is larger than the second difference; and determine to switch the second antenna to the third frequency band in response to determining that the second difference is larger than the first difference, wherein the first difference is an absolute value of a difference between a frequency point in the first frequency band and a frequency point in the third frequency band, and the second difference is an absolute value of a difference between a frequency point in the second frequency band and a frequency point in the third frequency band.

[0284] Optionally, the communications apparatus 2100 includes a second reporting module configured to report to a base station the special switching mode that requires additional switching time.

[0285] Optionally, each special switching mode corresponds to the same additional switching time.

[0286] Optionally, each special switching mode corresponds to a different additional switching time, and the communications device 2100 includes a third reporting module configured to report the additional switching time corresponding to each special switching mode.

[0287] Optionally, the communications device 2100 includes a fourth reporting module configured to report the additional switching time to the base station, where the additional switching time is used by the base station to apply the additional switching time to all predefined special switching modes.

[0288] Optionally, the additional switching time is a plurality of time domain symbols, and a time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, the reference subcarrier spacing corresponding to a first bandwidth portion in the frequency band in which the antenna is located before switching.

[0289] Optionally, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing. FIG. 22 is a block diagram of a communication device shown by an exemplary embodiment, applied to a base station. As shown in FIG. 19, the communication device 2200 includes a receiving module 2201 configured to receive option information corresponding to a frequency band combination reported by a terminal with the frequency band combination as a granularity. The frequency band combination includes at least two frequency bands, and correspondingly, the receiving module 2201 includes at least one frequency band pair formed by combining at least two frequency bands in the frequency band combination, and a determining module 2202 configured to determine a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination based on the option information.

[0290] Optionally, the determining module 2202 includes a first determining module configured to determine that all frequency band pairs in the frequency band combination support only simultaneous transmission when the option information corresponding to the frequency band combination is dualUL, a second determining module configured to determine that all frequency bands in the frequency band combination support only single transmission when the option information corresponding to the frequency band combination is switchedUL, and a third determining module configured to determine that at least one frequency band pair in the frequency band combination supports simultaneous transmission and at least one frequency band in the frequency band combination supports single transmission when the option information corresponding to the frequency band combination is both.

[0291] Optionally, the communications device 2200 includes a first receiving module configured to receive support information corresponding to at least one frequency band pair in a frequency band combination, where the support information corresponding to the at least one frequency band pair is reported in response to the terminal determining that option information corresponding to the frequency band combination is both, and the frequency band pairs in the at least one frequency band pair have a one-to-one correspondence with the support information; and a fourth determining module configured to determine a transmission mode supported by the corresponding frequency band pair based on the support information corresponding to the at least one frequency band pair. Optionally, the fourth determination module includes: a fifth determination module configured to determine that a frequency band pair of the at least one frequency band pair supports only simultaneous transmission if the support information corresponding to the frequency band pair of the at least one frequency band pair is simultaneous transmission; a sixth determination module configured to determine that two frequency bands in the frequency band pair support only single transmission if the support information corresponding to the frequency band pair of the at least one frequency band pair is single transmission; and a seventh determination module configured to determine that the frequency band pair supports single transmission and the two frequency bands in the frequency band pair support single transmission if the support information corresponding to the frequency band pair of the at least one frequency band pair is full transmission.

[0292] Optionally, the support information includes support information corresponding to at least three frequency band pairs, the number of the at least three frequency band pairs being equal to or less than the number of frequency band pairs included in the frequency band combination, and the support information corresponding to two target frequency band pairs of the at least three frequency band pairs being first support information and second support information, respectively.

[0293] Optionally, support information corresponding to other frequency band pairs among the support information corresponding to the at least one frequency band pair is determined by the terminal based on its own capability, and the other frequency band pairs are frequency band pairs among the at least three frequency band pairs excluding the target frequency band pair.

[0294] Alternatively, the first support information is a single transmission and the second support information is a simultaneous transmission, or the first support information is a simultaneous transmission and the second support information is a single transmission.

[0295] Optionally, the number of the at least one frequency band pair is equal to or less than the number of frequency band pairs included in the frequency band combination, and among the support information corresponding to the at least one frequency band pair, the support information corresponding to each frequency band pair is the same and is third support information.

[0296] Optionally, the fourth determination module includes an eighth determination module configured to determine, when the third support information is simultaneous transmission, that at least one frequency band pair in the frequency band combination supports only simultaneous transmission, and that all frequency band pairs except for at least one frequency band pair support only single transmission; or a ninth determination module configured to determine, when the third support information is full transmission, that at least one frequency band pair in the frequency band combination supports both simultaneous transmission and single transmission, and that all frequency band pairs except for at least one frequency band pair support only single transmission; or a tenth determination module configured to determine, when the third support information is single transmission, that at least one frequency band pair in the frequency band combination supports only single transmission, and that all frequency band pairs except for at least one frequency band pair support only simultaneous transmission, or that all frequency band pairs except for at least one frequency band pair support both simultaneous transmission and single transmission.

[0297] Optionally, the communications device 2200 includes a first transmitting module configured to transmit RRC signaling for instructing single antenna switching, wherein the RRC signaling is used to instruct a terminal to determine, when the first antenna is in the first frequency band, the second antenna is in the second frequency band, and a next transmission is to be performed in a third frequency band, to switch the first antenna to the third frequency band or switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band.

[0298] Optionally, communications apparatus 2200 includes a second receiving module configured to receive a special switching mode requiring additional switching time reported by the terminal.

[0299] Optionally, each special switching mode corresponds to the same additional switching time.

[0300] Optionally, each special switching mode corresponds to a different additional switching time, and the communications device 2200 includes a third receiving module configured to receive the additional switching time corresponding to each special switching mode reported by the terminal.

[0301] Optionally, the communications device 2200 includes a fourth receiving module configured to receive the additional switching time reported by the terminal and apply the additional switching time to all predefined special switching modes.

[0302] Optionally, the additional switching time is a plurality of time domain symbols, and a time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, the reference subcarrier spacing corresponding to a first bandwidth portion in the frequency band in which the antenna is located before switching.

[0303] Alternatively, the first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

[0304] 23 is a block diagram of an electronic device 2300 according to an exemplary embodiment. The electronic device 2300 may be provided as a terminal.

[0305] Referring to FIG. 23 , an electronic device 2300 may include one or more components: a processing component 2302, a memory 2304, a power component 2306, a multimedia component 2308, an audio component 2310, an input / output (I / O) interface 2312, a sensor component 2314, and a communication component 2316.

[0306] The processing component 2302 typically controls the overall operation of the electronic device 2300, such as operations related to display, phone calls, data communication, camera operation, and recording operations. The processing component 2302 may include one or more processors 2320 for executing instructions to complete all or some of the steps of the communication methods described above. Additionally, the processing component 2302 may include one or more modules to facilitate interaction with other components. For example, the processing component 2302 may include a multimedia module to facilitate interaction between the processing component 2302 and the multimedia component 2308.

[0307] The memory 2304 is configured to store various types of data to support operation on the electronic device 2300. Examples of this data include instructions for any application programs or communication methods for operating on the electronic device 2300, contact data, phone book data, messages, images, videos, etc. The memory 2304 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0308] The power component 2306 provides power to various components of the electronic device 2300. The power component 2306 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 2300.

[0309] The multimedia component 2308 includes a screen that provides an output interface between the electronic device 2300 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel may include one or more touch sensors to detect touches, slides, and gestures on the touch panel. The touch sensors may detect not only the boundaries of a touch or slide action but also the duration and pressure associated with the touch or slide action. In some embodiments, the multimedia component 2308 includes a front camera and / or a rear camera. When the electronic device 2300 is in an operational mode, such as a photo mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or may have a focal length and optical zoom capability.

[0310] The audio component 2310 is configured to output and / or input audio signals. For example, the audio component 2310 includes a microphone (MIC) configured to receive external audio signals when the electronic device 2300 is in an operational mode such as a call mode, a record mode, and a voice recognition mode. The received audio signals may be further stored in the memory 2304 or transmitted via the communication component 2316. In some embodiments, the audio component 2310 further includes a speaker for outputting audio signals.

[0311] The I / O interface 2312 provides an interface between the processing component 2302 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0312] The sensor component 2314 includes one or more sensors to provide various aspects of the electronic device 2300 with status assessment. For example, the sensor component 2314 can detect the on / off state of the electronic device 2300, the relative positioning of components, such as the display and keypad of the electronic device 2300, and the positional changes of the electronic device 2300 or a component of the electronic device 2300, the presence or absence of a user's contact with the electronic device 2300, the orientation and position or acceleration / deceleration of the electronic device 2300, and temperature changes of the electronic device 2300. The sensor component 2314 can also include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 2314 can further include an optical sensor, such as a CMOS or CCD image sensor used for imaging applications. In some embodiments, the sensor component 2314 can further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0313] The communication component 2316 is configured to facilitate wired or wireless communication between the electronic device 2300 and other devices. The electronic device 2300 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 2316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 2316 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0314] In an exemplary embodiment, the electronic device 2300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processors (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described communication methods.

[0315] An exemplary embodiment further provides a non-transitory computer-readable storage medium containing instructions, such as a memory 2304 containing instructions, which may be executed by a processor 2320 of the electronic device 2300 to complete the above-described communication method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, or an optical data storage device.

[0316] In another exemplary embodiment, there is further provided a computer program product comprising a computer program executable by a programmable device, the computer program having code portions for performing the above communication method when the computer program is executed by the programmable device.

[0317] 24 is a block diagram of an electronic device illustrated in accordance with an exemplary embodiment. For example, electronic device 2400 can be provided as a base station. Referring to FIG. 24, electronic device 2400 includes a processing component 2422 including one or more processors and memory resources represented by memory 2432 for storing instructions, such as application programs, executed by processing component 2422. The application programs stored in memory 2432 can include one or more modules, each corresponding to a set of instructions. Furthermore, processing component 2422 is configured to execute instructions to perform steps of a communication method provided by the above method embodiment.

[0318] The electronic device 2400 may further include a power component 2426 configured to perform power management of the electronic device 2400, a wired or wireless network interface 2450 configured to connect the electronic device 2400 to a network, and an input / output (I / O) interface 2458. The electronic device 2400 may be configured to run Windows Server 2008 R2. TM ,Mac OS X TM (Registered trademark), Unix TM ,Linux TM (Registered trademark), FreeBSD TM or similarly, an operating system stored in memory 2432 may be operated.

[0319] In another exemplary embodiment, there is further provided a computer program product comprising a computer program executable by a programmable device, the computer program having code portions for performing the above communication method when the computer program is executed by the programmable device.

[0320] Those skilled in the art will readily appreciate other embodiments of the present disclosure after studying the specification and practicing the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that comply with the general principles of the present disclosure and include common general knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are considered to be exemplary only, with the true scope and spirit of the present disclosure being submitted by the following claims.

[0321] It should be noted that the present disclosure is not limited to the exact structures described above and illustrated in the drawings, and various modifications and variations can be made without departing from the scope thereof, which is limited only by the appended claims.

Claims

1. A communication method applied to a terminal, comprising: reporting option information corresponding to the frequency band combination to a base station, with the frequency band combination as a granularity; The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands; The optional information is used to indicate a transmission format supported by each frequency band pair and / or each frequency band in the frequency band combination. A communication method comprising:

2. When the optional information corresponding to the frequency band combination is dualUL, the optional information indicates that all frequency band pairs in the frequency band combination support only simultaneous transmission; If the optional information corresponding to the frequency band combination is switchedUL, the optional information indicates that all frequency bands in the frequency band combination support only single transmission; When the option information corresponding to the frequency band combination is "both," the option information indicates that at least one frequency band pair in the frequency band combination supports simultaneous transmission, and at least one frequency band in the frequency band combination supports single transmission.

2. The communication method according to claim 1.

3. The method comprises: and in response to determining that the option information corresponding to the frequency band combination is "both," reporting support information corresponding to at least one frequency band pair in the frequency band combination to a base station, wherein the support information corresponding to the at least one frequency band pair is used to indicate a transmission mode supported by a corresponding frequency band pair, and the frequency band pairs in the at least one frequency band pair correspond one-to-one to the support information.

3. The communication method according to claim 2.

4. When the support information corresponding to one frequency band pair among the at least one frequency band pair is a simultaneous transmission, the support information indicates that the frequency band pair supports only simultaneous transmission; When the support information corresponding to one frequency band pair among the at least one frequency band pair is a single-transmission, the support information indicates that two frequency bands in the frequency band pair support only a single-transmission; When the support information corresponding to one frequency band pair among the at least one frequency band pair is full transmission, the support information indicates that the frequency band pair supports simultaneous transmission and that two frequency bands in the frequency band pair support single transmission.

4. The communication method according to claim 3.

5. the support information corresponding to the at least one frequency band pair includes support information corresponding to at least three frequency band pairs, and the number of the at least three frequency band pairs is equal to or less than the number of frequency band pairs included in the frequency band combination; the support information corresponding to two target frequency band pairs among the at least three frequency band pairs is first support information and second support information, respectively; 5. The communication method according to claim 4.

6. Support information corresponding to other frequency band pairs among the support information corresponding to the at least one frequency band pair is determined by the terminal based on its own capability, and the other frequency band pairs are frequency band pairs excluding the target frequency band pair among the at least three frequency band pairs.

6. The communication method according to claim 5.

7. the first support information is a single transmission and the second support information is a simultaneous transmission, or the first support information is a simultaneous transmission and the second support information is a single transmission; 6. The communication method according to claim 5.

8. the number of the at least one frequency band pair is equal to or less than the number of frequency band pairs included in the frequency band combination, and the support information corresponding to each frequency band pair among the support information corresponding to the at least one frequency band pair is the same and is third support information.

4. The communication method according to claim 3.

9. The third support information is simultaneous transmission, and the support information corresponding to the at least one frequency band pair is used to indicate that the at least one frequency band pair in the frequency band combination only supports simultaneous transmission, and the frequency band pairs other than the at least one frequency band pair only support single transmission, or The third support information is full transmission, and the support information corresponding to the at least one frequency band pair is used to indicate that the at least one frequency band pair in the frequency band combination supports both simultaneous transmission and single transmission, and the frequency band pairs other than the at least one frequency band pair support only single transmission, or the third support information is single transmission, and the support information corresponding to the at least one frequency band pair is used to indicate that the at least one frequency band pair in the frequency band combination all support single transmission only, all frequency band pairs other than the at least one frequency band pair all support simultaneous transmission only, or all frequency band pairs other than the at least one frequency band pair all support both simultaneous transmission and single transmission; 9. The communication method according to claim 8.

10. The method comprises: receiving RRC signaling for indicating single antenna switching sent by a base station; and determining, in response to a first antenna of the terminal being in a first frequency band, a second antenna being in a second frequency band, and a next transmission being performed in a third frequency band, to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band.

2. The communication method according to claim 1.

11. The step of determining to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band includes: determining, in response to determining that a switching time of a first frequency band pair formed by the first frequency band and the third frequency band is greater than a switching time of a second frequency band pair formed by the second frequency band and the third frequency band, to switch the first antenna to a third frequency band; or determining to switch the first antenna to a third frequency band in response to determining that a switching time of a first frequency band pair formed by the first frequency band and the third frequency band is smaller than a switching time of a second frequency band pair formed by the second frequency band and the third frequency band. The communication method according to claim 10.

12. The step of determining to switch the first antenna to the third frequency band or to switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band includes: in response to determining that a switching time of a first frequency band pair formed of the first frequency band and the third frequency band is equal to a switching time of a second frequency band pair formed of the second frequency band and the third frequency band, determining to switch the first antenna to a third frequency band or to switch the second antenna to the third frequency band based on a frequency point of the first frequency band and a frequency point of the second frequency band. The communication method according to claim 10.

13. The step of determining to switch the first antenna to a third frequency band or to switch the second antenna to a third frequency band based on a frequency point of the first frequency band and a frequency point of the second frequency band includes: determining, in response to determining that a frequency point of the first frequency band is greater than a frequency point of the second frequency band, to switch the first antenna to a third frequency band; and, in response to determining that a frequency point of the second frequency band is greater than a frequency point of the first frequency band, to switch the second antenna to the third frequency band; or determining, in response to determining that a frequency point of the first frequency band is smaller than a frequency point of the second frequency band, to switch the first antenna to a third frequency band; and determining, in response to determining that a frequency point of the second frequency band is smaller than a frequency point of the first frequency band, to switch the second antenna to the third frequency band.

13. The communication method according to claim 12.

14. The step of determining to switch the first antenna to a third frequency band or to switch the second antenna to a third frequency band based on a frequency point of the first frequency band and a frequency point of the second frequency band includes: determining, in response to the first difference being less than the second difference, to switch the first antenna to a third frequency band; and, in response to the second difference being less than the first difference, to switch the second antenna to the third frequency band; or determining, in response to the first difference being greater than the second difference, to switch the first antenna to a third frequency band; and determining, in response to the second difference being greater than the first difference, to switch the second antenna to the third frequency band; the first difference is an absolute value of a difference between a frequency point in the first frequency band and a frequency point in the third frequency band, and the second difference is an absolute value of a difference between a frequency point in the second frequency band and a frequency point in the third frequency band; 13. The communication method according to claim 12.

15. The method comprises: reporting to a base station a special switching mode requiring additional switching time; 2. The communication method according to claim 1.

16. Each of the special switching modes corresponds to the same additional switching time.

16. The communication method according to claim 15.

17. Each of the special switching modes corresponds to a different additional switching time, and the method comprises: reporting additional switching times corresponding to each of the special switching modes; 16. The communication method according to claim 15.

18. The method comprises: reporting an additional switching time to a base station, the additional switching time being used by the base station to apply the additional switching time to all predefined special switching modes; 2. The communication method according to claim 1.

19. the additional switching time is a plurality of time domain symbols, a time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, the reference subcarrier spacing corresponding to a first bandwidth portion in the frequency band in which the antenna is located before switching; 19. A communication method according to claim 15 or 18.

20. The first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

20. The communication method of claim 19.

21. A communication method applied to a base station, comprising: receiving optional information corresponding to the frequency band combination reported by the terminal, with a frequency band combination as a granularity, wherein the frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands; determining a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination based on the option information; A communication method comprising:

22. The step of determining a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination based on the option information includes: If the option information corresponding to the frequency band combination is dualUL, determining that all frequency band pairs in the frequency band combination support only simultaneous transmission; If the option information corresponding to the frequency band combination is switchedUL, determining that all frequency bands in the frequency band combination support only single transmission; If the option information corresponding to the frequency band combination is "both," determining that at least one frequency band pair in the frequency band combination supports simultaneous transmission and at least one frequency band in the frequency band combination supports single transmission.

22. The communication method of claim 21.

23. The method comprises: receiving support information corresponding to at least one frequency band pair in the frequency band combination, the support information corresponding to the at least one frequency band pair being reported by the terminal in response to determining that option information corresponding to the frequency band combination is "both," and the frequency band pairs in the at least one frequency band pair correspond one-to-one to the support information; determining a transmission configuration supported by the corresponding frequency band pair based on support information corresponding to the at least one frequency band pair; 23. The communication method of claim 22.

24. determining a transmission mode supported by the corresponding frequency band pair based on support information corresponding to the at least one frequency band pair, determining that one frequency band pair of the at least one frequency band pair supports only simultaneous transmission if the support information corresponding to the one frequency band pair is simultaneous transmission; If the support information corresponding to one frequency band pair of the at least one frequency band pair is uni-transmission, determining that two frequency bands in the frequency band pair support only uni-transmission; If the support information corresponding to one frequency band pair of the at least one frequency band pair is full transmission, determining that the frequency band pair supports single transmission and that two frequency bands in the frequency band pair support single transmission.

22. The communication method of claim 21.

25. the support information includes support information corresponding to at least three frequency band pairs, the number of the at least three frequency band pairs being equal to or less than the number of frequency band pairs included in the frequency band combination; the support information corresponding to two target frequency band pairs among the at least three frequency band pairs is first support information and second support information, respectively; 25. The communication method of claim 24.

26. Support information corresponding to other frequency band pairs among the support information corresponding to the at least one frequency band pair is determined by the terminal based on its own capability, and the other frequency band pairs are frequency band pairs excluding the target frequency band pair among the at least three frequency band pairs.

26. The communication method of claim 25.

27. the first support information is a single transmission and the second support information is a simultaneous transmission, or the first support information is a simultaneous transmission and the second support information is a single transmission; 26. The communication method of claim 25.

28. the number of the at least one frequency band pair is equal to or less than the number of frequency band pairs included in the frequency band combination, and the support information corresponding to each frequency band pair among the support information corresponding to the at least one frequency band pair is the same and is 23rd support information; 24. The communication method of claim 23.

29. determining a transmission mode supported by the corresponding frequency band pair based on support information corresponding to the at least one frequency band pair, If the third support information is simultaneous transmission, determining that the at least one frequency band pair in the frequency band combination only supports simultaneous transmission, and that the frequency band pairs other than the at least one frequency band pair only support single transmission; or If the third support information is full transmission, determining that the at least one frequency band pair in the frequency band combination supports both simultaneous transmission and single transmission, and that the frequency band pairs other than the at least one frequency band pair support only single transmission; or If the third support information is single transmission, determining that each of the at least one frequency band pair in the frequency band combination supports only single transmission, each of the frequency band pairs excluding the at least one frequency band pair supports only simultaneous transmission, or each of the frequency band pairs excluding the at least one frequency band pair supports both simultaneous transmission and single transmission.

29. The communication method of claim 28.

30. The method comprises: transmitting RRC signaling for instructing single antenna switching, the RRC signaling being used to instruct a terminal to determine, when a first antenna is in a first frequency band, a second antenna is in a second frequency band, and a next transmission is to be performed in a third frequency band, to switch the first antenna to the third frequency band or switch the second antenna to the third frequency band based on a switching time of a frequency band pair formed with the third frequency band; 22. The communication method of claim 21.

31. The method comprises: receiving a special switching mode that requires additional switching time reported by the terminal; 22. The communication method of claim 21.

32. Each of the special switching modes corresponds to the same additional switching time.

32. The communication method of claim 31.

33. Each of the special switching modes corresponds to a different additional switching time, and the method comprises: receiving an additional switching time corresponding to each of the special switching modes reported by the terminal; 32. The communication method of claim 31.

34. The method comprises: receiving an additional switching time reported by the terminal and applying the additional switching time to all predefined special switching modes; 22. The communication method of claim 21.

35. the additional switching time is a plurality of time domain symbols, a time length corresponding to the time domain symbols is associated with a reference subcarrier spacing, the reference subcarrier spacing corresponding to a first bandwidth portion in the frequency band in which the antenna is located before switching; 35. The communication method of claim 34.

36. The first bandwidth portion is the most recently activated bandwidth portion, or the first bandwidth portion is the initial bandwidth portion, or the first bandwidth portion is the first activated bandwidth portion, or the first bandwidth portion is the bandwidth portion with the highest center frequency point, or the first bandwidth portion is the bandwidth portion with the lowest center frequency point, or the first bandwidth portion is the bandwidth portion with the largest subcarrier spacing, or the first bandwidth portion is the bandwidth portion with the smallest subcarrier spacing.

36. The communication method of claim 35.

37. A communication device applied to a terminal, reporting option information corresponding to the frequency band combination to a base station, with the frequency band combination as a granularity; The frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands; The optional information is used to indicate a transmission format supported by each frequency band pair and / or each frequency band in the frequency band combination. A communication device comprising:

38. A communication device applied to a base station, a receiving module configured to receive, with a frequency band combination as a granularity, optional information corresponding to the frequency band combination reported by a terminal, wherein the frequency band combination includes at least two frequency bands, and correspondingly, the frequency band combination includes at least one frequency band pair formed by combining the at least two frequency bands; a determination module configured to determine a transmission mode supported by each frequency band pair and / or each frequency band in the frequency band combination based on the option information. A communication device comprising:

39. 1. An electronic device comprising: a processor; a memory for storing instructions executable by the processor; The processor is configured to perform the steps of the method according to any one of claims 1 to 20 or the steps of the method according to any one of claims 21 to 36. An electronic device characterized by:

40. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method according to any one of claims 1 to 20 or the steps of the method according to any one of claims 21 to 36. A computer-readable storage medium comprising:

Images