Communication method, terminal, network device, system, and storage medium

Abstract

The present disclosure relates to a communication method, a terminal, a network device, a system, and a storage medium. The method comprises: sending first capability information, wherein the first capability information is used to indicate that a terminal is capable of switching between M uplink antennas and / or the terminal is capable of switching from the M uplink antennas to M antennas, the switching is uplink transmission switching performed on a plurality of frequency bands, the plurality of frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3. Thus, the terminal reports its capability to support frequency band switching between a plurality of uplink antennas, thereby avoiding the problem of ambiguity in switching methods during antenna switching.

Description

Communication method, terminal, network device, system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, terminal, network device, system, and storage medium. Background Art

[0002] In related technologies, NR (New Radio, 5G wireless network) supports a large amount of spectrum in different frequency ranges. For the low-frequency FR1 (Frequency Range 1) band, the available spectrum is more fragmented and the available bandwidth is generally narrow, which is more suitable for inter-band multi-carrier operations. For the FR2 band and some FR1 bands, the available spectrum can be wider, making it more suitable for intra-band multi-carrier operations. In order to meet the needs of different application scenarios and ensure that both fragmented spectrum and wide spectrum can be used efficiently, it is necessary to consider enhancing uplink multi-carrier.

[0003] Summary of the Invention

[0004] To overcome the problems existing in the related art, the present disclosure provides a communication method, a terminal, a network device, a system and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a terminal. The method includes:

[0006] Send first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a network device. The method includes:

[0008] Receive first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0009] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0010] The terminal sends first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3;

[0011] The network device determines, based on the first capability information, that the terminal supports simultaneous frequency band switching in the M uplink antennas.

[0012] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0013] The transceiver module is configured to send first capability information, where the first capability information is used to indicate that the terminal is capable of switching between M uplink antennas and / or switching from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0014] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0015] The transceiver module is configured to receive first capability information, where the first capability information is used to indicate that the terminal is capable of switching between M uplink antennas and / or switching from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0016] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0017] one or more processors;

[0018] The terminal is used to execute the communication method described in any one of the first aspects of this disclosure.

[0019] According to a seventh aspect of an embodiment of the present disclosure, a network device is provided, including:

[0020] one or more processors;

[0021] The network device is used to execute the communication method described in any one of the second aspects of this disclosure.

[0022] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, comprising a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of the first aspects of the present disclosure, and the network device is configured to implement the communication method described in any one of the second aspects of the present disclosure.

[0023] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first aspect and the second aspect of the present disclosure.

[0024] In the above technical solution, first capability information is sent, and the first capability information is used to indicate that the terminal is capable of switching between M uplink antennas and / or that the terminal is capable of switching from M uplink antennas to M antennas. Switching refers to uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3. Therefore, the terminal reports the capability of supporting frequency band switching between multiple uplink antennas, thereby avoiding the problem of ambiguous switching mode in antenna switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0026] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0027] FIG2 is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure.

[0028] FIG3 is a flowchart showing a communication method according to an embodiment of the present disclosure.

[0029] FIG4 is a flowchart showing a communication method according to an embodiment of the present disclosure.

[0030] FIG5 is a flowchart showing a communication method according to an embodiment of the present disclosure.

[0031] FIG6 is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure.

[0032] FIG7 is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure.

[0033] FIG8 is a schematic structural diagram of a network device 8100 proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] The embodiments of the present disclosure provide a communication method, a terminal, a network device, a system, and a storage medium.

[0035] In a first aspect, an embodiment of the present disclosure provides a communication method, which is executed by a terminal. The method includes:

[0036] Send first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0037] In the above embodiment, the terminal reports the first capability information to indicate that the terminal supports switching between M uplink antennas, wherein the switching is performed on multiple frequency bands for uplink transmission, so that the network device indicates the switching method based on the first capability information reported by the terminal, thereby avoiding the problem of ambiguous switching method in antenna switching.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0039] Determine that the terminal can perform frequency band switching on the M uplink antennas.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, determining that the terminal supports frequency band switching in the M uplink antennas includes:

[0041] receiving a first parameter sent by a network device, where the first parameter is used to indicate that switching of the M uplink antennas is configured in an inter-band uplink carrier aggregation link or a supplementary uplink;

[0042] According to the first parameter, it is determined that the terminal can perform frequency band switching on M uplink antennas, and the switching is on the inter-band uplink carrier aggregation link or the supplementary uplink.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the first capability information includes second capability information, where the second capability information is used to indicate that M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink are capable of frequency band switching, and the sending of the first capability information includes:

[0044] Sending second capability information;

[0045] Based on the second capability information, it is determined that the terminal is capable of performing frequency band switching on the M uplink antennas.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0047] It is determined that the terminal does not support simultaneous frequency band switching among the M uplink antennas.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, determining that the terminal does not support frequency band switching in the M uplink antennas includes:

[0049] The terminal is not configured with a first parameter, determining that the terminal does not support frequency band switching in the M uplink antennas, and the first parameter is used to indicate that switching of the M uplink antennas is configured in an inter-band uplink carrier aggregation link or a supplementary uplink.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, determining that the terminal does not support frequency band switching on the M uplink antennas includes:

[0051] If it is determined that the terminal has not reported the second capability information, then the terminal does not support frequency band switching for the M uplink antennas, and the second capability information is used to indicate support for frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0053] Determine an antenna link status of the terminal.

[0054] In conjunction with some embodiments of the first aspect, in some embodiments, determining the antenna link status of the terminal includes:

[0055] receiving a second parameter sent by a network device, where the second parameter is used to indicate the antenna link status;

[0056] The antenna link status is determined according to the second parameter.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, determining the antenna link state according to the second parameter includes:

[0058] Determining that the terminal meets a first condition;

[0059] determining the antenna link state according to the second parameter;

[0060] The first condition includes one or more of the following:

[0061] When the terminal switches the uplink antenna based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching of the M uplink antennas;

[0062] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal is capable of performing frequency band switching on M uplink antennas;

[0063] The terminal is configured for dual uplink transmission, where the dual uplink transmission is used to indicate that the terminal supports simultaneous transmission in two frequency bands;

[0064] The terminal is configured to perform both uplink transmissions, where both uplink transmissions are used to indicate that the terminal supports simultaneous transmissions on two frequency bands and independent transmissions on a single frequency band;

[0065] The terminal is configured for triple uplink transmission, where the triple uplink transmission is used to indicate that the terminal supports simultaneous transmission in three frequency bands;

[0066] The terminal is configured for full uplink transmission, where the full uplink transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the second parameter includes one or more of the following:

[0068] The second parameter is a first pre-value, and the first pre-value is used to indicate that an uplink antenna in the terminal supports a target frequency band;

[0069] The second parameter is a second pre-value, and the second pre-value is used to indicate that two uplink antennas in the terminal support the target frequency band;

[0070] The second parameter is a third pre-value, and the third pre-value is used to indicate that three uplink antennas in the terminal support the target frequency band.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0072] A third parameter sent by a network device is received, where the third parameter is used to indicate that three uplink antennas in the terminal support the multiple frequency bands.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0074] Determining that the terminal meets a second condition;

[0075] Indicating, based on the third parameter, that three uplink antennas in the terminal support the multiple frequency bands;

[0076] The second condition includes one or more of the following:

[0077] When the terminal performs uplink antenna switching based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas;

[0078] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas;

[0079] The terminal is configured for duplex transmission, where the duplex transmission is used to indicate that the terminal supports simultaneous transmission in two frequency bands;

[0080] The terminal is configured for full-duplex transmission, where the full-duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and independent transmission of a single frequency band;

[0081] The terminal is configured for triplex transmission, where the triplex transmission is used to indicate that the terminal supports simultaneous transmission in three frequency bands;

[0082] The terminal is configured for full triplex transmission, where the full triplex transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0083] In conjunction with some embodiments of the first aspect, in some embodiments, determining the antenna link status of the terminal includes:

[0084] receiving a fourth parameter sent by a network device, where the fourth parameter is used to instruct the terminal to direct all frequency bands supported by M uplink antennas to a target frequency band, where the target frequency band is a scheduled frequency band to be transmitted;

[0085] According to the fourth parameter, the frequency bands supported by the M uplink antennas of the terminal are all directed to the target frequency band.

[0086] In combination with some embodiments of the first aspect, in some embodiments, directing the frequency bands supported by the M uplink antennas of the terminal to the target frequency band according to the fourth parameter includes:

[0087] Determining that the terminal satisfies a third condition;

[0088] According to the fourth parameter, all frequency bands supported by the M uplink antennas of the terminal are directed to the target frequency band;

[0089] The third condition includes one or more of the following:

[0090] The target frequency band is not configured with a related frequency band;

[0091] The target frequency band is not configured with a related frequency band group;

[0092] The target frequency band is scheduled for M-port transmission;

[0093] The target frequency band supports M-port transmission.

[0094] In combination with some embodiments of the first aspect, in some embodiments, the fourth parameter includes RRC radio resource control protocol signaling, and the value of the RRC signaling is the first preset value or the second preset value.

[0095] In combination with some embodiments of the first aspect, in some embodiments, the frequency band combination is used to perform uplink carrier aggregation in the terminal, and the frequency band combination includes at least two frequency bands.

[0096] In a second aspect, an embodiment of the present disclosure provides a communication method, characterized in that it is executed by a network device, and the method includes:

[0097] Receive first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0098] In the above embodiment, the network device receives the first capability information sent by the terminal, and the first capability information is used to indicate that the terminal supports switching between M uplink antennas, and the switching is uplink transmission switching on multiple frequency bands, so that the network device instructs the terminal to perform uplink antenna switching of the corresponding mode based on the first capability information reported by the terminal, thereby avoiding the problem of ambiguous switching mode during the antenna switching process.

[0099] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0100] Sending a first parameter to the terminal, where the first parameter is used to indicate that the terminal determines, based on the first parameter, that the terminal can simultaneously perform frequency band switching between M uplink antennas and M antennas, and the switching is on the inter-band uplink carrier aggregation link or the supplementary uplink.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the first capability information includes second capability information, where the second capability information is used to indicate that M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink are capable of frequency band switching, and the sending of the first capability information and the receiving of the first capability information include:

[0102] receiving second capability information;

[0103] It is determined, according to the second capability information, that the terminal is capable of simultaneously switching frequency bands in the M uplink antennas.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0105] A second parameter is sent to the terminal, where the second parameter is used to instruct the terminal to determine the antenna link state according to the second parameter.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments, sending the second parameter to the terminal includes:

[0107] Sending a second parameter to the terminal, where the second parameter is used by the terminal to determine the antenna link state according to the second parameter after determining that a first condition is met, where the first condition includes one or more of the following:

[0108] When the terminal performs uplink antenna switching based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas;

[0109] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas;

[0110] The terminal is configured for dual uplink transmission, where the dual uplink transmission is used to indicate that the terminal supports simultaneous transmission in two frequency bands;

[0111] The terminal is configured to perform both uplink transmissions, where both uplink transmissions are used to indicate that the terminal supports simultaneous transmissions on two frequency bands and independent transmissions on a single frequency band;

[0112] The terminal is configured for triple uplink transmission, where the triple uplink transmission is used to indicate that the terminal supports simultaneous transmission in three frequency bands;

[0113] The terminal is configured for full uplink transmission, where the full uplink transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments, the second parameter includes one or more of the following:

[0115] The second parameter is a first pre-value, and the first pre-value is used to indicate that an uplink antenna in the terminal supports a target frequency band;

[0116] The second parameter is a second pre-value, and the second pre-value is used to indicate that two uplink antennas in the terminal support the target frequency band;

[0117] The second parameter is a third pre-value, and the third pre-value is used to indicate that three uplink antennas in the terminal support the target frequency band.

[0118] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0119] A third parameter is sent to the terminal, where the third parameter is used to indicate that three uplink antennas in the terminal support the multiple frequency bands.

[0120] In conjunction with some embodiments of the second aspect, in some embodiments, sending the third parameter to the terminal includes:

[0121] Sending a third parameter to the terminal, where the third parameter is used by the terminal to determine, after determining that a second condition is met, that three uplink antennas in the terminal support the multiple frequency bands based on the third parameter, where the second condition includes one or more of the following:

[0122] When the terminal performs uplink antenna switching based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas;

[0123] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas;

[0124] The terminal is configured for duplex transmission, where the duplex transmission is used to indicate that the terminal supports simultaneous transmission in two frequency bands;

[0125] The terminal is configured for full-duplex transmission, where the full-duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and independent transmission of a single frequency band;

[0126] The terminal is configured for triplex transmission, where the triplex transmission is used to indicate that the terminal supports simultaneous transmission in three frequency bands;

[0127] The terminal is configured for full triplex transmission, where the full triplex transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0128] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0129] A fourth parameter is sent to the terminal, where the fourth parameter is used to instruct the terminal to point all frequency bands supported by M uplink antennas to a target frequency band according to the fourth parameter, where the target frequency band is a scheduled frequency band to be transmitted.

[0130] In conjunction with some embodiments of the second aspect, in some embodiments, sending the fourth parameter to the terminal includes:

[0131] Sending a fourth parameter to the terminal, where the fourth parameter is used by the terminal to point all frequency bands supported by the M uplink antennas of the terminal to the target frequency band according to the fourth parameter after determining that the third condition is met; wherein the third condition includes one or more of the following:

[0132] The target frequency band is not configured with a related frequency band;

[0133] The target frequency band is not configured with a related frequency band group;

[0134] The target frequency band is scheduled for M-port transmission;

[0135] The target frequency band supports M-port transmission.

[0136] In combination with some embodiments of the second aspect, in some embodiments, the fourth parameter includes RRC radio resource control protocol signaling, and the value of the RRC signaling is the first preset value or the second preset value.

[0137] In combination with some embodiments of the second aspect, in some embodiments, the frequency band combination is used to perform uplink carrier aggregation in the terminal, and the frequency band combination includes at least two frequency bands.

[0138] In a third aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0139] The terminal sends first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3;

[0140] The network device determines, based on the first capability information, that the terminal supports simultaneous frequency band switching in the M uplink antennas.

[0141] In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:

[0142] The transceiver module is configured to send first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0143] In a fifth aspect, an embodiment of the present disclosure provides a network device, including:

[0144] The transceiver module is configured to receive first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and where M is an integer greater than or equal to 3.

[0145] In a sixth aspect, an embodiment of the present disclosure provides a terminal, including:

[0146] one or more processors;

[0147] The terminal is used to execute the communication method described in any one of the first aspects of this disclosure.

[0148] In a seventh aspect, an embodiment of the present disclosure provides a network device, including:

[0149] one or more processors;

[0150] The network device is used to execute the communication method described in any one of the second aspects of this disclosure.

[0151] In an eighth aspect, an embodiment of the present disclosure provides a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of the first aspects of the present disclosure, and the network device is configured to implement the communication method described in any one of the second aspects of the present disclosure.

[0152] In the ninth aspect, an embodiment of the present disclosure provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first aspect and the second aspect of the present disclosure.

[0153] The present disclosure provides a communication method, terminal, network device, system, and storage medium. In some embodiments, the terms "communication method," "information processing method," and "communication method" are interchangeable; the terms "communication device," "information processing device," and "communication device" are interchangeable; and the terms "information processing system," "communication system," and "communication system" are interchangeable.

[0154] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0155] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0156] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0157] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0158] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0159] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0160] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0161] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0162] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0163] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0164] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0165] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0166] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0167] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0168] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0169] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0170] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0171] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0172] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0173] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0174] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0175] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0176] FIG1 is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0177] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0178] In some embodiments, the network device 102 is, for example, a node or device that accesses a terminal to a wireless network. The network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0179] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0180] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0181] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0182] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0183] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0184] In some implementations, there are some restrictions on uplink multi-carriers. For example, a 2Tx (2 Transmitter / 2 Antennas / 2 Transmit Links / 2 Transmit Ports) UE (User Equipment) can be configured with a maximum of two UL (Up-Link) frequency bands, and the UL frequency band is adjusted through RRC (Radio Resource Control) reconfiguration. A 2Tx UE (i.e., a terminal with two antennas / 2 Transmitter terminals / 2 Transmit Link terminals) can only switch antennas between the two UL frequency bands. Dynamic carrier selection through uplink antenna switching, for example, based on data traffic, TDD (Time Division Duplex) configuration, frequency band bandwidth, and channel conditions, can achieve better uplink data rates, spectrum utilization, and uplink capacity. Therefore, in this embodiment, a 2Tx UE can be configured with more than two UL frequency bands and supports uplink antenna switching on 3-band and / or 4-band, introducing new switching cases such as switching from band1+band2 (1Tx+1Tx) to band3+band4 (1Tx+1Tx), and switching from band1+band2 (1Tx+1Tx) to band3 (2Tx).

[0185] In some implementations, RAN4 (Radio Access Network 4) can support 3Tx UE (terminal with 3 antennas, 3 transmitters, and 3 transmission links), and simultaneously support 2-port transmission on one band and 1-port transmission on another band. That is, one of the two bands needs to support 2Tx (2 antennas, 2 transmitters, and 2 transmission links) MIMO (Multiple Input Multiple Output, using multiple antennas to simultaneously send and receive multiple data streams on the same channel to improve data transmission rate).

[0186] In some implementation methods, during the interaction between the terminal and the network device, the relevant parameters for configuring the number of antennas for uplink antenna switching are mainly uplinkTxSwitching2TMode (uplink transmission switching mode of 2 antennas), which is used to indicate that the terminal supports the antenna switching scenario of switching from 2Tx to 2Tx; uplinkTxSwitching-DualUL-TxState (dual uplink switching transmission state), with the values ​​of oneT and twoT, which are used to indicate whether the antenna switched by the terminal is Tx1 or Tx2.

[0187] In some embodiments, the configuration of related bands can be configured for each band. When a band is not configured with a related band, when it is indicated as oneT, 2Tx will still be switched to this band. When oneT is supported, a band is configured with related bands, and the final switching of Tx needs to be on this band and its related bands. For example: when the 1P port transmission on bandC is scheduled, and Tx is currently associated with band A and band B, the Tx associated with bandB is switched to band C, and the other Tx associated with band A remains unchanged; when the 1P port transmission on bandD is scheduled, and Tx is currently associated with bandA and band B, the Tx associated with bandA (band B) is switched to bandD, and the other Tx associated with band B (or band A) is switched to bandC.

[0188] In the above implementation, if the previous transmission was a 1P transmission on band A and another Tx was directed to band B, the next transmission will be a 1P transmission on band C. The network device will configure RRC signaling for oneT and twoT, specifying the switching case to indicate the specific number of antennas to switch. In the 2Tx UE scenario, when the next transmission is a 2P transmission on band C, there will be no ambiguity. However, in the 3Tx UE scenario, ambiguity will exist.

[0189] Furthermore, given the varying support for concurrent bands by UEs, some implicit mechanisms are needed to mitigate ambiguity. For example, the existing mechanism indicates one Tx, but actually switches to two Tx. Considering a 3Tx (three antennas, three transmitters, three transmit links) UE, there are cases where an indication of one Tx might actually switch to three Tx, or vice versa.

[0190] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0191] Step S2101 : The terminal 101 sends first capability information to the network device 102 .

[0192] In some implementations, the network device 102 receives first capability information.

[0193] In some embodiments, the first capability information is used to indicate that the terminal supports switching between M uplink antennas and / or that the terminal supports switching from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3. It should be noted that, in this embodiment, switching between M uplink antennas can be described as switching between M Txs. For example, switching between three uplink antennas can be described as switching between 3 Txs.

[0194] For example, this embodiment is applied to the communication system shown in FIG1 , which includes a network device 102 and a terminal 101. Terminal 101 is configured with M antennas, where M is an integer greater than or equal to 3. The M antennas are uplink transmission antennas, and terminal 101 implements uplink transmission with network device 102 based on the M antennas. During uplink transmission by terminal 101, if the current uplink transmission antenna fails to meet transmission requirements due to interference from environmental factors or other signals, it is necessary to switch the uplink transmission antenna. Switching indication information sent by network device 102 instructs terminal 101 to switch from the current uplink transmission antenna to another uplink antenna among the M antennas to avoid uplink transmission obstructions caused by antenna signal congestion, or to switch the band pointed by the current transmission antenna to another band. It should be noted that, in this embodiment, switching between M uplink antennas means that the terminal is configured with M uplink antennas, and switching between M uplink antennas means that the terminal can perform multi-band frequency switching on the M uplink antennas.

[0195] This embodiment is applied to the terminal 101, which is provided with M uplink antennas, where M is an integer greater than or equal to 3. The terminal is provided with switching between the M uplink antennas and / or switching between the M uplink antennas to the M antennas based on the uplink antenna setting. The switching method is to perform uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal.

[0196] In some embodiments, the uplink antenna is a channel for the terminal 101 to send uplink transmission signals. The name of the uplink antenna is not limited, and it can be, for example, "radio frequency link", "transmission link", "uplink antenna link", "uplink transmission link", etc.

[0197] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0198] In some embodiments, the name of the first capability information is not limited, and it can be, for example, "first indication information", "first reporting information", "antenna quantity information", "antenna switching capability information", etc.

[0199] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0200] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0201] In some embodiments, the method further includes: determining that the terminal 101 supports frequency band switching among M uplink antennas. For example, before reporting the first capability information, the terminal 101 needs to determine whether the terminal 101 supports frequency band switching among M uplink antennas based on its own configuration or related indication information. And when it is determined that the terminal 101 supports it, first capability information is generated to indicate the antenna switching capability of the terminal 101, wherein the first capability information is used to indicate that the terminal supports switching between M uplink antennas and / or switching between M uplink antennas to M antennas. For example, the terminal 101 can determine the uplink antenna configuration of the current terminal 101 by reading the factory configuration information, and when the terminal 101 meets the configuration of M uplink antennas, it is determined that the terminal 101 supports frequency band switching among M uplink antennas.

[0202] In some implementations, the above step of “determining that the terminal 101 is capable of performing frequency band switching among M uplink antennas” includes:

[0203] A first parameter sent by a network device is received, where the first parameter is used to indicate that frequency band switching of the M uplink antennas is configured in an inter-band uplink carrier aggregation link or a supplementary uplink.

[0204] According to the first parameter, it is determined that the terminal supports frequency band switching for M uplink antennas on the inter-band uplink carrier aggregation link or the supplementary uplink.

[0205] For example, in this embodiment, the first parameter sent by the network device 102 indicates that the frequency band switching of the M uplink antennas of the terminal 101 is configured in the inter-band uplink carrier aggregation link or the supplementary uplink. Among them, the first parameter can also be used to indicate the frequency band switching mode of the terminal 101 based on the M uplink antennas. Different frequency band switching modes have different switching methods on the M uplink antennas. The network device 102 indicates the first parameter information to the terminal 101 to indicate that the terminal 101 supports the switching mode of M uplink antennas in the inter-band UL CA (uplink carrier aggregation link) or SUL (Supplementary Uplink). After receiving the first parameter, the terminal 101 determines that the terminal 101 can support frequency band switching in M ​​uplink antennas according to the first parameter.

[0206] In some implementations, the name of the first parameter is not limited, and may be, for example, "uplink mode parameter," "uplink transmission indication parameter," "antenna switching mode parameter," etc. For example, in this embodiment, M is 3, and the first parameter may be uplinkTxSwitching3TMode (uplink transmission switching mode for 3 antennas), which indicates to the terminal 101 to use the 3T switching mode during uplink transmission.

[0207] In some implementations, the first capability information includes the second capability information.

[0208] In some embodiments, the second capability information is used to indicate that M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink are capable of frequency band switching. The “sending the first capability information” includes:

[0209] Sending second capability information;

[0210] Based on the second capability information, it is determined that the terminal is capable of performing frequency band switching among M uplink antennas.

[0211] For example, in this embodiment, the terminal 101 sends the second capability information based on the configuration.

[0212] In some implementations, the second capability information is used to indicate that the terminal 101 supports frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplemental uplink. The terminal 101 may determine, based on device configuration information, whether frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplemental uplink is supported. Upon determining that the terminal 101 has this capability, the second capability information is generated. Based on the second capability information, it is determined that frequency band switching for M uplink antennas is supported in the terminal.

[0213] In some embodiments, the method further includes: determining that the terminal does not support frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplemental uplink. For example, in this embodiment, after terminal 101 reports the first capability information, it can determine whether terminal 101 supports frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplemental uplink based on relevant information configured by the base station or factory configuration information of terminal 101. When terminal 101 does not have the corresponding configuration or does not receive the configuration information sent by network device 102, it is determined that terminal 101 does not support frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplemental uplink.

[0214] In some implementations, the step of “determining that the terminal does not support frequency band switching on M uplink antennas” includes:

[0215] If it is determined that the terminal has not reported the second capability information, then the terminal does not support frequency band switching on M uplink antennas. The second capability information is used to indicate support for frequency band switching on M uplink antennas in the inter-band uplink carrier aggregation link or the supplementary uplink.

[0216] For example, in this embodiment, terminal 101 can determine whether terminal 101 supports frequency band switching on M uplink antennas by reading factory configuration information. When terminal 101 determines, based on the factory configuration information, that terminal 101 does not support frequency band switching on M uplink antennas, it does not report the second capability information, so that network device 102 determines that terminal 101 does not support frequency band switching on M uplink antennas. For example, after network device 102 receives the first capability information sent by terminal 101, it can start timing. When the timing reaches a set threshold, if the second capability information reported by terminal 101 is not received, it is determined that terminal 101 does not support frequency band switching on M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink.

[0217] In some implementations, the step of “determining that the terminal does not support frequency band switching on M uplink antennas” includes:

[0218] The first parameter is not configured in the terminal, determining that the terminal does not support frequency band switching in M ​​uplink antennas. The first parameter is used to indicate that the switching mode of the M uplink antennas is configured in the inter-band uplink carrier aggregation link or the supplementary uplink.

[0219] For example, in this embodiment, after the network device 102 receives the first capability information sent by the terminal 101, it configures the antenna switching of the terminal 101 according to the antenna switching capability of the terminal 101 and the current antenna switching requirement, and indicates through the first parameter that the terminal 101 can support M uplink antennas to switch in the inter-band uplink carrier aggregation link or the supplementary uplink in the current state. Therefore, timing can be performed after the terminal 101 sends the first capability information. When the timing time reaches the set threshold, it is determined that the terminal 101 does not support M uplink antennas to switch in the inter-band uplink carrier aggregation link or the supplementary uplink.

[0220] In some implementations, the above method further includes: determining an antenna link status of the terminal.

[0221] For example, in this embodiment, after terminal 101 reports the first capability information, to prevent ambiguity during the handover process, the antenna link status of the M antenna links of terminal 101 can be determined, and frequency band switching between the M uplink antennas can be implemented based on the antenna link status. In this embodiment, terminal 101 can identify the M antennas and thereby determine the antenna link status of the M antennas. Furthermore, network device 102 can indicate to terminal 101 the antenna link status to which it currently needs to switch based on the first capability information sent by terminal 101 and the current antenna link handover requirement. Terminal 101 then determines the antenna link status based on this indication.

[0222] In some implementations, the above-mentioned “determining the antenna link status of the terminal” includes:

[0223] receiving a second parameter sent by the network device, where the second parameter is used to indicate an antenna link state;

[0224] An antenna link status is determined according to the second parameter.

[0225] For example, in this embodiment, after the network device 102 receives the first capability information sent by the terminal 101, it determines based on the first capability information that when the terminal 101 switches the antenna link state under the current switching strategy, an antenna switching ambiguity problem will occur. The second parameter can be configured for the terminal 101 based on the current network state and the first capability information of the terminal 101 to indicate the antenna link state of each antenna link in the terminal 101 in the current state. After receiving the second parameter, the terminal 101 determines the current antenna link state. The antenna link state is the band to which each of the M antennas in the terminal 101 points, or the band to which some of the M antennas point. The second parameter can be: uplink Tx Switching DualUL TxState atmost MTx (multi-link switching mode)

[0226] Optionally, determining the antenna link state according to the second parameter includes:

[0227] Determining that the terminal meets the first condition;

[0228] determining an antenna link state according to the second parameter;

[0229] The first condition includes one or more of the following:

[0230] When the terminal performs uplink antenna switching based on the first parameter sent by the network device, there are multiple switching modes, where the first parameter is used to indicate frequency band switching of the M uplink antennas;

[0231] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal supports M uplink antennas for frequency band switching;

[0232] The terminal is configured for dual uplink transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands.

[0233] The terminal is configured for both uplink transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands and independent transmission on a single frequency band.

[0234] The terminal is configured for triple uplink transmission, which indicates that the terminal supports simultaneous transmission on three frequency bands.

[0235] The terminal is configured for full uplink transmission, which is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0236] For example, in this embodiment, after receiving the second parameter sent by the network device 102, the terminal 101 determines the current state of the terminal 101 to determine whether the terminal 101 meets the first condition. The first condition includes one or more of the following:

[0237] Network device 102 sends a first parameter to instruct terminal 101 to perform frequency band switching on M uplink antennas. After receiving the first parameter, terminal 101 performs antenna switching when the switching requirement is met. Multiple switching methods exist for the M uplink antennas, which can cause switching ambiguity in terminal 101. Therefore, the first parameter indicated by the network device can be used to determine the antenna link status of each antenna in the current state of terminal 101, thereby avoiding switching ambiguity. The first parameter includes information about the band pointed to by each antenna.

[0238] After terminal 101 sends the first capability information to network device 102, it can determine whether it has a second capability based on the factory configuration information of terminal 101. The second capability is the ability of the terminal to support frequency band switching of M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink. When terminal 101 determines that it supports the second capability, it reports the second capability information to network device 102. After reporting the second capability information, when terminal 101 performs uplink antenna switching, there are multiple switching modes based on the M uplink antennas in terminal 101, resulting in switching ambiguity in terminal 101. Therefore, it is necessary to determine the antenna link status of each of the current M uplink antennas of terminal 101.

[0239] Terminal 101 is configured for dual uplink transmission. When terminal 101 switches between its M uplink antennas, switching ambiguity may occur in terminal 101. Dual uplink transmission utilizes two independent uplinks simultaneously, sending data from terminal 101 to both links for transmission. This improves transmission bandwidth and capacity and reduces data transmission latency.

[0240] Terminal 101 is configured for all uplink transmission, wherein all uplink transmission is used to indicate that terminal 101 supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band on M antennas. Based on this configuration, when terminal 101 switches the uplink antenna, it is impossible to determine which switching method to use to meet the current switching requirements, which can easily lead to switching ambiguity problems in terminal 101. Therefore, in this state, it is necessary to indicate the antenna link status in terminal 101 to determine the antenna link status of terminal 101.

[0241] Terminal 101 is configured for triple uplink transmission, where triple uplink transmission is used to indicate that M antennas in terminal 101 support simultaneous transmission in three frequency bands. Based on this configuration, when terminal 101 switches uplink antennas, it is impossible to determine how to configure the switching bands among the M uplink antennas, resulting in switching ambiguity in terminal 101. Therefore, when terminal 101 is configured for triple uplink transmission, it is necessary to indicate the antenna link status in terminal 101 to determine the antenna link status of terminal 101.

[0242] The terminal is configured for full uplink transmission, which is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0243] Terminal 101 is configured for full uplink transmission, where full uplink transmission indicates that terminal 101 supports simultaneous transmission on three frequency bands, simultaneous transmission on two frequency bands, and independent transmission on a single frequency band. In this case, terminal 101's antenna link supports multiple transmission modes. When terminal 101 switches uplink antennas, the frequency bands of each antenna change, resulting in switching ambiguity in terminal 101. Therefore, it is necessary to indicate the antenna link status of terminal 101.

[0244] Optionally, in some embodiments, the second parameter includes one or more of the following:

[0245] The second parameter is a first preset value, which is used to indicate that an uplink antenna in the terminal supports the target frequency band;

[0246] The second parameter is a second preset value, and the second preset value is used to indicate that two uplink antennas in the terminal support the target frequency band;

[0247] The second parameter is a third pre-value, and the third pre-value is used to indicate that the three uplink antennas in the terminal support the target frequency band.

[0248] For example, in this embodiment, the second parameter includes the target frequency band to which the terminal 101 needs to switch, and the second parameter is a first pre-value, where the first pre-value can be one T, used to indicate that there is an uplink antenna in the terminal 101 that supports the target frequency band; the second parameter is a second pre-value, where the second pre-value can be two T, used to indicate that there are two uplink antennas in the terminal 101 that support the target frequency band; the second parameter is a third pre-value, where the third pre-value can be three T, used to indicate that there are three uplink antennas in the terminal 101 that support the target frequency band.

[0249] In some embodiments, the above method further includes: receiving a third parameter sent by the network device, where the third parameter is used to indicate that the three uplink antennas in the terminal support multiple frequency bands.

[0250] For example, in this embodiment, network device 102 sends a third parameter to indicate the antenna switching mode in terminal 101, where the third parameter is used to indicate the multiple frequency bands supported by the three uplink antennas in the terminal. That is, after receiving the first capability information sent by terminal 101, network device 102 configures the third parameter indicating the switching mode for terminal 101 based on the capabilities of terminal 101, thereby indicating the multiple frequency bands supported by the three uplink antennas in terminal 101.

[0251] Optionally, in some embodiments, the method further comprises:

[0252] Determining that the terminal satisfies a second condition;

[0253] Based on the third parameter, indicating that three uplink antennas in the terminal support multiple frequency bands;

[0254] The second condition includes one or more of the following:

[0255] When the terminal performs uplink antenna switching based on the first parameter sent by the network device, there are multiple switching modes, where the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas;

[0256] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas;

[0257] The terminal is configured for duplex transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands.

[0258] The terminal is configured for full-duplex transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands and independent transmission on a single frequency band.

[0259] The terminal is configured for triplex transmission, which indicates that the terminal supports simultaneous transmission on three frequency bands.

[0260] The terminal is configured for full triplex transmission, which indicates that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0261] For example, after receiving the third parameter fed back by the network device 102, the terminal 101 determines the current handover state of the terminal 101 to determine whether the terminal 101 meets the second condition, where the second condition includes one or more of the following:

[0262] When the terminal 101 receives the first parameter sent by the network device to switch the uplink antenna, if there are multiple switching methods based on the M uplink antennas in the terminal 101, the third parameter is used to indicate the multiple frequency bands supported by the three uplink antennas in the terminal, wherein the first parameter is used to indicate the switching mode between M uplink antennas and M antennas.

[0263] When the terminal 101 determines that it supports M uplink antennas for frequency band switching in the inter-band uplink carrier aggregation link or the supplementary uplink, the terminal 101 sends the second capability information to the network device 102. When the uplink antenna switching is performed after sending the second capability information, there are multiple switching modes in the terminal 101. The second parameter sent by the network device 102 is required to determine the antenna link status in the terminal 101.

[0264] Terminal 101 is configured for duplex transmission, wherein duplex transmission is used to indicate that terminal 101 supports simultaneous transmission in two frequency bands when performing antenna switching. At this time, if antenna switching is indicated in terminal 101, based on the configuration of duplex transmission, an antenna switching ambiguity problem will occur in terminal 101. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0265] Terminal 101 is configured for full-duplex transmission, where full-duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band. Based on the full-duplex transmission configuration in terminal 101, when performing antenna switching, an antenna switching ambiguity problem will occur in terminal 101, making it impossible for terminal 101 to determine which antennas in the current antennas are selected for frequency band switching, and the target frequency band to which the corresponding switched antennas need to be switched. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0266] Terminal 101 is configured for triplex transmission, where triplex transmission is used to indicate that terminal 101 supports simultaneous transmission in three frequency bands. Based on the triplex transmission configuration in terminal 101, when performing antenna switching, an antenna switching ambiguity problem will occur in terminal 101, making it impossible for terminal 101 to determine which antennas to select for frequency band switching. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0267] Terminal 101 is configured for full triplex transmission, where full triplex transmission is used to indicate that terminal 101 supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and separate transmission of a single frequency band. Based on the full triplex transmission configuration in terminal 101, when antenna switching is performed, an antenna switching ambiguity problem will occur in terminal 101, making it impossible for terminal 101 to determine which antennas are selected for frequency band switching. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0268] In some implementations, the above-mentioned “determining the antenna link status of the terminal” includes:

[0269] receiving a fourth parameter sent by the network device, where the fourth parameter is used to instruct the terminal to direct all frequency bands supported by the M uplink antennas to a target frequency band, where the target frequency band is a scheduled frequency band to be transmitted;

[0270] According to the fourth parameter, the frequency bands supported by the M uplink antennas of the terminal are all directed to the target frequency band.

[0271] For example, in this embodiment, network device 102 instructs terminal 101 on an antenna switching mode based on the first capability information sent by terminal 101, generates a fourth parameter, and sends it to terminal 101. The fourth parameter is used to instruct terminal 101 to direct all frequency bands supported by M uplink antennas to a target frequency band, where the target frequency band is the scheduled frequency band to be transmitted. Terminal 101 directs all frequency bands supported by M uplink antennas to the target frequency band based on the fourth parameter.

[0272] Optionally, in some implementations, the above “pointing all frequency bands supported by the M uplink antennas of the terminal to the target frequency band according to the fourth parameter” includes:

[0273] Determining that the terminal satisfies a third condition;

[0274] According to the fourth parameter, the frequency bands supported by the M uplink antennas of the terminal are all directed to the target frequency band;

[0275] The third condition includes one or more of the following:

[0276] The target frequency band is not configured with a related frequency band;

[0277] The target frequency band is not configured with a related frequency band group;

[0278] The target frequency band is scheduled for M-port transmission;

[0279] The target frequency band supports M-port transmission.

[0280] For example, in this embodiment, after receiving the fourth parameter, the terminal 101 determines the current state of the terminal 101 to determine whether the terminal 101 meets the third condition. When it is determined that the terminal 101 meets the third condition, the frequency bands supported by the M uplink antennas of the terminal 101 are all directed to the target frequency band according to the fourth parameter, where the third condition includes one or more of the following:

[0281] A related frequency band that is not configured with a target frequency band among the target frequency bands indicated by the network device 102;

[0282] The target frequency band instructed to be switched by the network device 102 does not have a frequency band group associated with the target frequency band configured;

[0283] The target frequency band indicated by the network device 102 needs to be transmitted simultaneously through the M-port process;

[0284] The target frequency band instructed by the network device 102 to switch supports M-port transmission.

[0285] In some implementations, the fourth parameter includes RRC (Radio Resource Control, radio resource control protocol signaling), and the value of the RRC signaling is a first preset value or a second preset value. For example, the first preset value may be one T, and the second preset value may be two Ts.

[0286] In some implementations, a frequency band combination is used to perform uplink carrier aggregation in a terminal, and the frequency band combination includes at least two frequency bands.

[0287] For example, the terminal 101 supports uplink carrier aggregation in a frequency band combination, where the frequency band combination includes at least two frequency bands supported by the terminal 101 .

[0288] In the above technical solution, first capability information is sent, and the first capability information is used to indicate that the terminal supports switching between M uplink antennas and / or switching from M uplink antennas to M antennas. Switching refers to uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3. The terminal thus reports its ability to support frequency band switching between multiple uplink antennas, thereby avoiding the problem of ambiguous switching modes in antenna switching.

[0289] Step S2102 : The network device 102 receives the first capability information sent by the terminal 101 .

[0290] In some embodiments, the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0291] In some embodiments, the uplink antenna is a channel for the terminal 101 to send uplink transmission signals. The name of the uplink antenna is not limited, and it can be, for example, "radio frequency link", "transmission link", "uplink antenna link", "uplink transmission link", etc.

[0292] In some embodiments, the name of the first capability information is not limited, and it can be, for example, "first indication information", "first reporting information", "antenna quantity information", "antenna switching capability information", etc.

[0293] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0294] In some embodiments, the method further comprises:

[0295] A first parameter is sent to the terminal, where the first parameter is used to instruct the terminal to determine, based on the first parameter, that the terminal can simultaneously perform frequency band switching between M uplink antennas and M antennas, wherein the switching is on the inter-band uplink carrier aggregation link or the supplementary uplink.

[0296] For example, in this embodiment, the first parameter sent by the network device 102 indicates that the switching mode of the M uplink antennas of the terminal 101 is configured in the inter-band uplink carrier aggregation link or the supplementary uplink. The network device 102 indicates the first parameter information to the terminal 101 to indicate that the terminal 101 supports the switching mode of the M uplink antennas in the inter-band UL CA (uplink carrier aggregation link) or SUL (Supplementary Uplink). After receiving the first parameter, the terminal 101 determines, based on the first parameter, that the terminal 101 can support frequency band switching among the M uplink antennas.

[0297] In some embodiments, the first capability information includes second capability information, where the second capability information is used to indicate that M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink are capable of frequency band switching. The sending of the first capability information and the receiving of the first capability information include:

[0298] receiving the second capability information;

[0299] It is determined, according to the second capability information, that the terminal is capable of simultaneously switching frequency bands in the M uplink antennas.

[0300] For example, the second capability information is used to indicate that the terminal 101 supports frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplemental uplink. The terminal 101 may determine, based on device configuration information, whether frequency band switching for M uplink antennas in the inter-band uplink carrier aggregation link or the supplemental uplink is supported. Upon determining that the terminal 101 has this capability, the second capability information is generated. Based on the second capability information, it is determined that frequency band switching for M uplink antennas is supported in the terminal.

[0301] In some implementations, the method further includes: sending a second parameter to the terminal, where the second parameter is used to instruct the terminal to determine the antenna link status according to the second parameter.

[0302] For example, in this embodiment, after network device 102 receives first capability information sent by terminal 101, it determines based on the first capability information that antenna switching ambiguity may occur when performing antenna link state switching in terminal 101 under the current switching policy. Then, based on the current network state and the first capability information of terminal 101, a second parameter may be configured for terminal 101 to indicate the antenna link state of each antenna link in terminal 101 under the current state. After receiving the second parameter, terminal 101 determines the current antenna link state. The antenna link state is the band to which each of the M antennas in terminal 101 is directed, or the band to which some of the M antennas are directed.

[0303] In some implementations, the “sending the second parameter to the terminal” includes:

[0304] Sending a second parameter to the terminal, where the second parameter is used by the terminal to determine the antenna link state based on the second parameter after determining that the first condition is met, where the first condition includes one or more of the following:

[0305] When the terminal performs uplink antenna switching based on the first parameter sent by the network device, there are multiple switching modes, where the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas;

[0306] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas;

[0307] The terminal is configured for dual uplink transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands.

[0308] The terminal is configured for both uplink transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands and independent transmission on a single frequency band.

[0309] The terminal is configured for triple uplink transmission, which indicates that the terminal supports simultaneous transmission on three frequency bands.

[0310] The terminal is configured for full uplink transmission, which is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0311] For example, in this embodiment, after receiving the second parameter sent by the network device 102, the terminal 101 determines the current state of the terminal 101 to determine whether the terminal 101 meets the first condition. The first condition includes one or more of the following:

[0312] Network device 102 sends a first parameter to instruct terminal 101 to perform frequency band switching on M uplink antennas. After receiving the first parameter, terminal 101 performs antenna switching when the switching requirement is met. Multiple switching methods exist for the M uplink antennas, which can cause switching ambiguity in terminal 101. Therefore, the first parameter indicated by the network device can be used to determine the antenna link status of each antenna in the current state of terminal 101, thereby avoiding switching ambiguity. The first parameter includes information about the band pointed to by each antenna.

[0313] After terminal 101 sends the first capability information to network device 102, it can determine whether it has a second capability based on the factory configuration information of terminal 101. The second capability is the ability of the terminal to support frequency band switching of M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink. When terminal 101 determines that it supports the second capability, it reports the second capability information to network device 102. After reporting the second capability information, when terminal 101 performs uplink antenna switching, there are multiple switching modes based on the M uplink antennas in terminal 101, resulting in switching ambiguity in terminal 101. Therefore, it is necessary to determine the antenna link status of each of the current M uplink antennas of terminal 101.

[0314] Terminal 101 is configured for dual uplink transmission. When terminal 101 switches between its M uplink antennas, switching ambiguity may occur in terminal 101. Dual uplink transmission utilizes two independent uplinks simultaneously, sending data from terminal 101 to both links for transmission. This improves transmission bandwidth and capacity and reduces data transmission latency.

[0315] Terminal 101 is configured for all uplink transmission, wherein all uplink transmission is used to indicate that terminal 101 supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band on M antennas. Based on this configuration, when terminal 101 switches the uplink antenna, it is impossible to determine which switching method to use to meet the current switching requirements, which can easily lead to switching ambiguity problems in terminal 101. Therefore, in this state, it is necessary to indicate the antenna link status in terminal 101 to determine the antenna link status of terminal 101.

[0316] Terminal 101 is configured for triple uplink transmission, where triple uplink transmission is used to indicate that M antennas in terminal 101 support simultaneous transmission in three frequency bands. Based on this configuration, when terminal 101 switches uplink antennas, it is impossible to determine how to configure the switching bands among the M uplink antennas, resulting in switching ambiguity in terminal 101. Therefore, when terminal 101 is configured for triple uplink transmission, it is necessary to indicate the antenna link status in terminal 101 to determine the antenna link status of terminal 101.

[0317] The terminal is configured for full uplink transmission, which is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0318] Terminal 101 is configured for full uplink transmission, where full uplink transmission indicates that terminal 101 supports simultaneous transmission on three frequency bands, simultaneous transmission on two frequency bands, and independent transmission on a single frequency band. In this case, terminal 101's antenna link supports multiple transmission modes. When terminal 101 switches uplink antennas, the frequency bands of each antenna change, resulting in switching ambiguity in terminal 101. Therefore, it is necessary to indicate the antenna link status of terminal 101.

[0319] Optionally, in some embodiments, the second parameter includes one or more of the following:

[0320] The second parameter is a first preset value, which is used to indicate that an uplink antenna in the terminal supports the target frequency band;

[0321] The second parameter is a second preset value, and the second preset value is used to indicate that two uplink antennas in the terminal support the target frequency band;

[0322] The second parameter is a third pre-value, and the third pre-value is used to indicate that the three uplink antennas in the terminal support the target frequency band.

[0323] For example, in this embodiment, the second parameter includes the target frequency band to which the terminal 101 needs to switch, and the second parameter is a first pre-value, where the first pre-value can be one T, used to indicate that there is an uplink antenna in the terminal 101 that supports the target frequency band; the second parameter is a second pre-value, where the second pre-value can be two T, used to indicate that there are two uplink antennas in the terminal 101 that support the target frequency band; the second parameter is a third pre-value, where the third pre-value can be three T, used to indicate that there are three uplink antennas in the terminal 101 that support the target frequency band.

[0324] In some implementations, the method further includes: sending a third parameter to the terminal, where the third parameter is used to indicate that the three uplink antennas in the terminal support multiple frequency bands.

[0325] For example, in this embodiment, network device 102 sends a third parameter to indicate the antenna switching mode in terminal 101, where the third parameter is used to indicate the multiple frequency bands supported by the three uplink antennas in the terminal. That is, after receiving the first capability information sent by terminal 101, network device 102 configures the third parameter indicating the switching mode for terminal 101 based on the capabilities of terminal 101, thereby indicating the multiple frequency bands supported by the three uplink antennas in terminal 101.

[0326] In some implementations, the “sending the third parameter to the terminal” includes:

[0327] A third parameter is sent to the terminal. The third parameter is used by the terminal to determine, after determining that the second condition is met, that the three uplink antennas in the terminal support multiple frequency bands based on the third parameter. The second condition includes one or more of the following:

[0328] When the terminal performs uplink antenna switching based on the first parameter sent by the network device, there are multiple switching modes, where the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas;

[0329] After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, where the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas;

[0330] The terminal is configured for duplex transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands.

[0331] The terminal is configured for full-duplex transmission, which indicates that the terminal supports simultaneous transmission on two frequency bands and independent transmission on a single frequency band.

[0332] The terminal is configured for triplex transmission, which indicates that the terminal supports simultaneous transmission on three frequency bands.

[0333] The terminal is configured for full triplex transmission, which indicates that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0334] For example, after receiving the third parameter fed back by the network device 102, the terminal 101 determines the current handover state of the terminal 101 to determine whether the terminal 101 meets the second condition, where the second condition includes one or more of the following:

[0335] When the terminal 101 receives the first parameter sent by the network device to switch the uplink antenna, if there are multiple switching methods based on the M uplink antennas in the terminal 101, the third parameter is used to indicate the multiple frequency bands supported by the three uplink antennas in the terminal, wherein the first parameter is used to indicate the switching mode between M uplink antennas and M antennas.

[0336] When the terminal 101 determines that it supports M uplink antennas for frequency band switching in the inter-band uplink carrier aggregation link or the supplementary uplink, the terminal 101 sends the second capability information to the network device 102. When the uplink antenna switching is performed after sending the second capability information, there are multiple switching modes in the terminal 101. The second parameter sent by the network device 102 is required to determine the antenna link status in the terminal 101.

[0337] Terminal 101 is configured for duplex transmission, wherein duplex transmission is used to indicate that terminal 101 supports simultaneous transmission in two frequency bands when performing antenna switching. At this time, if antenna switching is indicated in terminal 101, based on the configuration of duplex transmission, an antenna switching ambiguity problem will occur in terminal 101. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0338] Terminal 101 is configured for full-duplex transmission, where full-duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band. Based on the full-duplex transmission configuration in terminal 101, when performing antenna switching, an antenna switching ambiguity problem will occur in terminal 101, making it impossible for terminal 101 to determine which antennas in the current antennas are selected for frequency band switching, and the target frequency band to which the corresponding switched antennas need to be switched. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0339] Terminal 101 is configured for triplex transmission, where triplex transmission is used to indicate that terminal 101 supports simultaneous transmission in three frequency bands. Based on the triplex transmission configuration in terminal 101, when performing antenna switching, an antenna switching ambiguity problem will occur in terminal 101, making it impossible for terminal 101 to determine which antennas to select for frequency band switching. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0340] Terminal 101 is configured for full triplex transmission, where full triplex transmission is used to indicate that terminal 101 supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and separate transmission of a single frequency band. Based on the full triplex transmission configuration in terminal 101, when antenna switching is performed, an antenna switching ambiguity problem will occur in terminal 101, making it impossible for terminal 101 to determine which antennas are selected for frequency band switching. Therefore, it is necessary to indicate the antenna link status in terminal 101 based on the second parameter.

[0341] In some embodiments, the method further includes: sending a fourth parameter to the terminal, where the fourth parameter is used to instruct the terminal to point all frequency bands supported by M uplink antennas to a target frequency band according to the fourth parameter, where the target frequency band is the scheduled frequency band to be transmitted.

[0342] For example, in this embodiment, network device 102 instructs terminal 101 on an antenna switching mode based on the first capability information sent by terminal 101, generates a fourth parameter, and sends it to terminal 101. The fourth parameter is used to instruct terminal 101 to direct all frequency bands supported by M uplink antennas to a target frequency band, where the target frequency band is the scheduled frequency band to be transmitted. Terminal 101 directs all frequency bands supported by M uplink antennas to the target frequency band based on the fourth parameter.

[0343] In some implementations, the “sending the fourth parameter to the terminal” includes:

[0344] A fourth parameter is sent to the terminal. The fourth parameter is used by the terminal to point all frequency bands supported by the M uplink antennas of the terminal to the target frequency band according to the fourth parameter after determining that the third condition is met. The third condition includes one or more of the following:

[0345] The target frequency band is not configured with a related frequency band;

[0346] The target frequency band is not configured with a related frequency band group;

[0347] The target frequency band is scheduled for M-port transmission;

[0348] The target frequency band supports M-port transmission.

[0349] For example, in this embodiment, after receiving the fourth parameter, the terminal 101 determines the current state of the terminal 101 to determine whether the terminal 101 meets the third condition. When it is determined that the terminal 101 meets the third condition, the frequency bands supported by the M uplink antennas of the terminal 101 are all directed to the target frequency band according to the fourth parameter, where the third condition includes one or more of the following:

[0350] A related frequency band that is not configured with a target frequency band among the target frequency bands indicated by the network device 102;

[0351] The target frequency band instructed to be switched by the network device 102 does not have a frequency band group associated with the target frequency band configured;

[0352] The target frequency band indicated by the network device 102 needs to be transmitted simultaneously through the M-port process;

[0353] The target frequency band instructed by the network device 102 to switch supports M-port transmission.

[0354] In some implementations, the fourth parameter includes RRC (Radio Resource Control, radio resource control protocol signaling), and the value of the RRC signaling is a first preset value or a second preset value. For example, the first preset value may be one T, and the second preset value may be two Ts.

[0355] In some implementations, a frequency band combination is used to perform uplink carrier aggregation in a terminal, and the frequency band combination includes at least two frequency bands.

[0356] For example, the terminal 101 supports uplink carrier aggregation in a frequency band combination, where the frequency band combination includes at least two frequency bands supported by the terminal 101 .

[0357] In the above technical solution, the network device determines the terminal's antenna switching capability based on the first capability information sent by the terminal and configures a corresponding antenna switching instruction for the terminal based on the antenna switching capability. This allows the terminal to report its ability to support frequency band switching between multiple uplink antennas, thus avoiding the issue of ambiguous switching methods in antenna switching.

[0358] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. The method is executed by the terminal 101. As shown in FIG3 , the method includes the following steps:

[0359] Step S3101: Send first capability information.

[0360] In some implementations, the network device 102 receives first capability information.

[0361] In some embodiments, the first capability information is used to indicate that the terminal supports switching between M uplink antennas and / or switching between M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0362] In the embodiments of the present disclosure, the relevant implementation method of step S3101 can refer to the embodiment of the aforementioned step S2101 and will not be repeated here.

[0363] Through the above technical solution, first capability information is sent, where the first capability information is used to indicate that the terminal supports switching between M uplink antennas and / or switching from M uplink antennas to M antennas. Switching refers to uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3. The terminal thus reports its ability to support frequency band switching between multiple uplink antennas, thereby avoiding the problem of ambiguous switching modes in antenna switching.

[0364] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. The method is executed by the network device 102. As shown in FIG4 , the method includes the following steps:

[0365] Step S4101: Receive first capability information.

[0366] In some embodiments, the first capability information is used to indicate that the terminal supports switching between M uplink antennas and / or switching between M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

[0367] In some embodiments, the uplink antenna is a channel for the terminal 101 to send uplink transmission signals. The name of the uplink antenna is not limited, and it can be, for example, "radio frequency link", "transmission link", "uplink antenna link", "uplink transmission link", etc.

[0368] In some embodiments, the name of the first capability information is not limited, and it can be, for example, "first indication information", "first reporting information", "antenna quantity information", "antenna switching capability information", etc.

[0369] In the embodiment of the present disclosure, the implementation of step S4101 may refer to the implementation of the aforementioned step S2102 and will not be repeated here.

[0370] In this manner, the network device determines the terminal's antenna switching capability based on the first capability information sent by the terminal and configures a corresponding antenna switching instruction for the terminal based on the antenna switching capability. This allows the terminal to report its ability to support frequency band switching between multiple uplink antennas, thus avoiding the issue of ambiguous switching methods associated with antenna switching.

[0371] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. The method is executed by the terminal 101. As shown in FIG5 , the method includes the following steps:

[0372] In step S5101, the terminal sends first capability information, where the first capability information is used to indicate that the terminal supports three uplink antennas and / or switching of frequency band combinations between three uplink antennas and three antennas, where the frequency band combination includes at least two frequency bands supported by the terminal.

[0373] In some implementations, the method further includes: determining that the terminal supports switching of three uplink antennas.

[0374] In some implementations, the “determining that the terminal supports switching of three uplink antennas” includes:

[0375] The network device configures a first parameter to the terminal, which is uplinkTxSwitching3TMode (uplink transmission switching mode of 3 antennas). The first parameter is used to indicate that 3Tx-3Tx switching mode (mode switching of 3 antennas) is configured in inter-band UL CA (inter-band uplink carrier aggregation link) or SUL link.

[0376] In some embodiments, when the first parameter is configured for the terminal, the terminal supports the 3Tx-3Tx switching mode in the inter-band UL CA or SUL link; when the first parameter is not configured for the terminal, the terminal does not support the 3Tx-3Tx switching mode in the inter-band UL CA or SUL link.

[0377] In some implementations, the “determining that the terminal supports switching of three uplink antennas” includes:

[0378] The terminal reports second capability information to the network device, where the second capability information is used to indicate whether the 3Tx-3Tx switching mode is supported on the inter-band UL CA or SUL;

[0379] According to the second capability information, it is determined that the terminal supports switching of three uplink antennas.

[0380] For example, when the second capability information is reported to the network device, the 3Tx-3Tx switching mode is supported on the inter-band UL CA or SUL; when the second capability information is not reported to the network device, the 3Tx-3Tx switching mode is not supported on the inter-band UL CA or SUL.

[0381] In some embodiments, the method further includes determining an antenna link status.

[0382] In some implementations, the above-mentioned “determining the antenna link status” includes:

[0383] The network device configures a second parameter for the terminal, where the second parameter is used to indicate an antenna link state under at least one of the following conditions:

[0384] If the antenna link status is not unique after an uplink antenna switch configured with 3Tx-3Tx switching;

[0385] If the antenna link pile supports 3Tx-3Tx switching when the terminal reports that it supports it, the switching method is not unique when switching the online antenna;

[0386] If the transmission mode in the terminal is configured as dual UL (dual uplink transmission), the dual UL is used to indicate that the terminal supports simultaneous transmission of two frequency bands;

[0387] If the transmission mode in the terminal is configured as both (both uplink transmission), the both is used to indicate that the terminal supports simultaneous transmission of two frequency bands and independent transmission of a single frequency band;

[0388] If the transmission mode in the terminal is configured as triUL (triple uplink transmission), the triUL is used to indicate that the terminal supports simultaneous transmission in three frequency bands;

[0389] If the transmission mode in the terminal is configured as all (all uplink transmission), the all is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0390] In some implementations, the above-mentioned “determining the antenna link status” includes:

[0391] receiving a third parameter sent by the network device, where the third parameter is used to indicate that three-antenna transmission is supported on a carrier in each frequency band under at least one of the following conditions;

[0392] If the antenna link status is not unique after an uplink antenna switch configured with 3Tx-3Tx switching;

[0393] If the antenna link status is not unique when performing uplink antenna switching when the terminal reports support for 3Tx-3Tx switching;

[0394] If the terminal's transmission mode is configured as dual UL (dual uplink transmission), the dual UL is used to indicate that the terminal supports simultaneous transmission on two frequency bands;

[0395] If the transmission mode in the terminal is configured as both (both uplink transmission), the both is used to indicate that the terminal supports simultaneous transmission of two frequency bands and independent transmission of a single frequency band;

[0396] If the transmission mode in the terminal is configured as triUL (triple uplink transmission), the triUL is used to indicate that the terminal supports simultaneous transmission of three frequency bands;

[0397] If the transmission mode in the terminal is configured as all (all uplink transmission), the all is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

[0398] In some implementations, the above-mentioned “determining the antenna link status” includes:

[0399] Receive RRC signaling configured by the network device, where the RRC signaling is one T or two T;

[0400] Determining, according to the RRC signaling, whether the terminal meets the first condition;

[0401] When the terminal meets the first condition, the terminal switches all antennas to the target frequency band, where the target frequency band is the rated frequency band where terminal scheduling will occur. The first condition includes one or more of the following:

[0402] The target frequency band is not configured with a related frequency band;

[0403] The target frequency band is not configured with a related frequency band group;

[0404] The target frequency band is scheduled for 3-port transmission;

[0405] The target frequency band supports 3-port transmission.

[0406] In the above technical solution, the terminal reports the first capability information, so that the network device configures the antenna switching method in the terminal based on the first capability information, so that the terminal reports the ability to support frequency band switching between multiple uplink antennas to avoid the problem of ambiguous switching method in antenna switching.

[0407] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0408] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0409] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0410] FIG6 is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6 , the terminal 6100 may include a transceiver module 6101. In some embodiments, the transceiver module 6100 is used to send first capability information, where the first capability information is used to indicate that the terminal supports switching between M uplink antennas and / or switching between M uplink antennas to M antennas, where the switching is to perform uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods, which will not be repeated here.

[0411] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0412] FIG7 is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure. As shown in FIG7 , a terminal 7100 may include a transceiver module 7101. In some embodiments, the transceiver module 7100 is used to receive first capability information, where the first capability information indicates that the terminal supports switching between M uplink antennas and / or switching between M uplink antennas to M antennas, where the switching is to perform uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods, which will not be repeated here.

[0413] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0414] Figure 8 is a schematic diagram of the structure of a network device 8100 proposed in an embodiment of the present disclosure. Network device 8100 can be a communications device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal implementing any of the above methods. Network device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0415] As shown in Figure 8, the network device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the network device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the network device 8100 to perform any of the above methods.

[0416] In some embodiments, the network device 8100 further includes one or more transceivers 8102. When the network device 8100 includes one or more transceivers 8102, the transceiver 8102 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method, and the processor 8101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0417] In some embodiments, network device 8100 also includes one or more memories 8103 for storing data. Alternatively, all or part of memory 8103 may be located outside of network device 8100. In alternative embodiments, network device 8100 may include one or more interface circuits 8104. Interface circuits 8104 may optionally be connected to memory 8102 and may be configured to receive data from memory 8102 or other devices, or to send data to memory 8102 or other devices. For example, interface circuit 8104 may read data stored in memory 8102 and send the data to processor 8101.

[0418] [Corrected 19.10.2023 according to Rule 91] The network device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the network device 8100 described in this disclosure is not limited thereto, and the structure of the network device 8100 may not be limited by FIG8. The network device may be an independent device or may be part of a larger device. For example, the network device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0419] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the network device 8100, the network device 8100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0420] The present disclosure also provides a program product, which, when executed by the network device 8100, enables the network device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0421] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that: Executed by a terminal, the method includes: Send first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and where M is an integer greater than or equal to 3.

2. The method according to claim 1, characterized in that The method further comprises: It is determined that the terminal can perform frequency band switching on the M uplink antennas.

3. The method according to claim 2, characterized in that The determining that the terminal can perform frequency band switching on the M uplink antennas includes: receiving a first parameter sent by a network device, where the first parameter is used to indicate that switching of the M uplink antennas is configured in an inter-band uplink carrier aggregation link or a supplementary uplink; According to the first parameter, it is determined that the terminal can perform frequency band switching on M uplink antennas, and the switching is on the inter-band uplink carrier aggregation link or the supplementary uplink.

4. The method according to claim 1, characterized in that The first capability information includes second capability information, where the second capability information is used to indicate that M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink can perform frequency band switching, and the sending of the first capability information includes: sending the second capability information; Based on the second capability information, it is determined that the terminal is capable of performing frequency band switching on the M uplink antennas.

5. The method according to claim 1, characterized in that The method further comprises: It is determined that the terminal does not support simultaneous frequency band switching of the M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink.

6. The method according to claim 5, characterized in that The determining that the terminal does not support frequency band switching among the M uplink antennas includes: The terminal is not configured with a first parameter, and it is determined that the terminal does not support frequency band switching in the M uplink antennas, and the first parameter is used to indicate that switching of the M uplink antennas is configured in an inter-band uplink carrier aggregation link or a supplementary uplink.

7. The method according to claim 5, characterized in that The determining that the terminal does not support frequency band switching on the M uplink antennas includes: If it is determined that the terminal has not reported the second capability information, then the terminal does not support frequency band switching for the M uplink antennas, and the second capability information is used to indicate support for frequency band switching for M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink.

8. The method according to claim 1, characterized in that The method further comprises: An antenna link status of the terminal is determined.

9. The method according to claim 8, characterized in that The determining the antenna link state of the terminal includes: receiving a second parameter sent by a network device, where the second parameter is used to indicate the antenna link state; The antenna link status is determined according to the second parameter.

10. The method according to claim 9, characterized in that The determining the antenna link state according to the second parameter includes: Determining that the terminal satisfies a first condition; determining the antenna link state according to the second parameter; The first condition includes one or more of the following: When the terminal switches the uplink antenna based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching of the M uplink antennas; After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, wherein the second capability information is used to indicate that the terminal can perform frequency band switching on M uplink antennas; The terminal is configured for dual uplink transmission, where the dual uplink transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands; The terminal is configured to perform uplink transmission, and the uplink transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band; The terminal is configured for three uplink transmissions, where the three uplink transmissions are used to indicate that the terminal supports simultaneous transmission in three frequency bands; The terminal is configured for full uplink transmission, and the full uplink transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

11. The method according to any one of claims 9 or 10, characterized in that The method comprises at least one of the following The second parameter is a first preset value, and the first preset value is used to indicate that an uplink antenna in the terminal supports a target frequency band; The second parameter is a second pre-value, and the second pre-value is used to indicate that two uplink antennas in the terminal support the target frequency band; The second parameter is a third pre-value, and the third pre-value is used to indicate that three uplink antennas in the terminal support the target frequency band.

12. The method according to claim 1, characterized in that The method further comprises: A third parameter sent by a network device is received, where the third parameter is used to indicate that three uplink antennas in the terminal support the multiple frequency bands.

13. The method according to claim 12, characterized in that The method further comprises: Determining that the terminal satisfies a second condition; Based on the third parameter, indicating that three uplink antennas in the terminal support the multiple frequency bands; The second condition includes one or more of the following: When the terminal switches the uplink antenna based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas; After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, wherein the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas; The terminal is configured for duplex transmission, where the duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands; The terminal is configured for full-duplex transmission, where the full-duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band; The terminal is configured for triplex transmission, where the triplex transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands; The terminal is configured for full triplex transmission, and the full triplex transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

14. The method according to claim 8, characterized in that The determining the antenna link state of the terminal includes: receiving a fourth parameter sent by a network device, where the fourth parameter is used to instruct the terminal to point all frequency bands supported by M uplink antennas to a target frequency band, where the target frequency band is a scheduled frequency band to be transmitted; According to the fourth parameter, the frequency bands supported by the M uplink antennas of the terminal are all directed to the target frequency band.

15. The method according to claim 14, characterized in that The step of directing all frequency bands supported by the M uplink antennas of the terminal to the target frequency band according to the fourth parameter includes: Determining that the terminal satisfies a third condition; According to the fourth parameter, all frequency bands supported by the M uplink antennas of the terminal are directed to the target frequency band; The third condition includes one or more of the following: The target frequency band is not configured with a related frequency band; The target frequency band is not configured with a related frequency band group; The target frequency band is scheduled for M-port transmission; The target frequency band supports M-port transmission.

16. The method according to any one of claims 14 or 15, characterized in that The fourth parameter includes RRC radio resource control protocol signaling, and the value of the RRC signaling is the first preset value or the second preset value.

17. The method according to any one of claims 1 to 16, characterized in that The frequency band combination is used to perform uplink carrier aggregation in the terminal, and the frequency band combination includes at least two frequency bands.

18. A communication method, characterized in that: Executed by a network device, the method includes: Receive first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and where M is an integer greater than or equal to 3.

19. The method according to claim 18, characterized in that The method further comprises: A first parameter is sent to the terminal, where the first parameter is used to instruct the terminal to determine, based on the first parameter, that the terminal can perform frequency band switching on M uplink antennas, and the switching is on the inter-band uplink carrier aggregation link or the supplementary uplink.

20. The method according to claim 18, characterized in that The first capability information includes second capability information, where the second capability information is used to indicate that M uplink antennas in an inter-band uplink carrier aggregation link or a supplementary uplink can perform frequency band switching, and the sending of the first capability information and the receiving of the first capability information include: receiving the second capability information; It is determined, according to the second capability information, that the terminal is capable of simultaneously switching frequency bands in the M uplink antennas.

21. The method according to claim 18, characterized in that The method further comprises: A second parameter is sent to the terminal, where the second parameter is used to instruct the terminal to determine the antenna link state according to the second parameter.

22. The method according to claim 21, characterized in that The sending the second parameter to the terminal includes: Sending a second parameter to the terminal, where the second parameter is used by the terminal to determine the antenna link state according to the second parameter after determining that a first condition is met, where the first condition includes one or more of the following: When the terminal switches the uplink antenna based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas; After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, wherein the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas; The terminal is configured for dual uplink transmission, where the dual uplink transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands; The terminal is configured to perform uplink transmission, and the uplink transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band; The terminal is configured for three uplink transmissions, where the three uplink transmissions are used to indicate that the terminal supports simultaneous transmission in three frequency bands; The terminal is configured for full uplink transmission, and the full uplink transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

23. The method according to any one of claims 21 or 22, characterized in that The second parameter includes one or more of the following: The second parameter is a first preset value, and the first preset value is used to indicate that an uplink antenna in the terminal supports a target frequency band; The second parameter is a second pre-value, and the second pre-value is used to indicate that two uplink antennas in the terminal support the target frequency band; The second parameter is a third pre-value, and the third pre-value is used to indicate that three uplink antennas in the terminal support the target frequency band.

24. The method according to claim 18, characterized in that The method further comprises: A third parameter is sent to the terminal, where the third parameter is used to indicate that three uplink antennas in the terminal support the multiple frequency bands.

25. The method according to claim 24, characterized in that The sending the third parameter to the terminal includes: Sending a third parameter to the terminal, where the third parameter is used by the terminal to determine that three uplink antennas in the terminal support the multiple frequency bands according to the third parameter after determining that a second condition is met, where the second condition includes one or more of the following: When the terminal switches the uplink antenna based on the first parameter sent by the network device, there are multiple switching modes, wherein the first parameter is used to indicate the frequency band switching between M uplink antennas and M antennas; After the terminal sends the second capability information, there are multiple switching modes when performing uplink antenna switching, wherein the second capability information is used to indicate that the terminal supports M uplink antennas and simultaneous frequency band switching between M antennas; The terminal is configured for duplex transmission, where the duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands; The terminal is configured for full-duplex transmission, where the full-duplex transmission is used to indicate that the terminal supports simultaneous transmission of two frequency bands and separate transmission of a single frequency band; The terminal is configured for triplex transmission, where the triplex transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands; The terminal is configured for full triplex transmission, and the full triplex transmission is used to indicate that the terminal supports simultaneous transmission of three frequency bands, simultaneous transmission of two frequency bands, and independent transmission of a single frequency band.

26. The method according to claim 18, characterized in that The method further comprises: A fourth parameter is sent to the terminal, where the fourth parameter is used to instruct the terminal to point all frequency bands supported by M uplink antennas to a target frequency band according to the fourth parameter, where the target frequency band is a scheduled frequency band to be transmitted.

27. The method according to claim 26, characterized in that The sending the fourth parameter to the terminal includes: sending a fourth parameter to the terminal, where the fourth parameter is used by the terminal to point all frequency bands supported by the M uplink antennas of the terminal to the target frequency band according to the fourth parameter after determining that the third condition is met; wherein the third condition includes one or more of the following: The target frequency band is not configured with a related frequency band; The target frequency band is not configured with a related frequency band group; The target frequency band is scheduled for M-port transmission; The target frequency band supports M-port transmission.

28. The method according to any one of claims 26 or 27, characterized in that The fourth parameter includes RRC radio resource control protocol signaling, and the value of the RRC signaling is the first preset value or the second preset value.

29. The method according to claims 18-28, characterized in that The frequency band combination is used to perform uplink carrier aggregation in the terminal, and the frequency band combination includes at least two frequency bands.

30. A communication method, characterized in that: The method comprises: The terminal sends first capability information, where the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or that the terminal can switch from M uplink antennas to M antennas, where the switching is uplink transmission switching on multiple frequency bands, where the multiple frequency bands are frequency band combinations supported by the terminal, and where M is an integer greater than or equal to 3; The network device determines, according to the first capability information, that the terminal supports simultaneous frequency band switching in the M uplink antennas.

31. A terminal, characterized in that: include: The transceiver module is configured to send first capability information, wherein the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or the terminal can switch from M uplink antennas to M antennas, wherein the switching is uplink transmission switching on multiple frequency bands, the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

32. A network device, characterized in that: include: The transceiver module is configured to receive first capability information, wherein the first capability information is used to indicate that the terminal can switch between M uplink antennas and / or the terminal can switch from M uplink antennas to M antennas, wherein the switching is uplink transmission switching on multiple frequency bands, the multiple frequency bands are frequency band combinations supported by the terminal, and M is an integer greater than or equal to 3.

33. A terminal, characterized in that: include: one or more processors; The terminal is used to execute the communication method described in any one of claims 1 to 17.

34. A network device, characterized in that: include: one or more processors; Wherein, the network device is used to execute the communication method described in any one of claims 18-28.

35. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1 to 17, and the network device is configured to implement the communication method according to any one of claims 18 to 28.

36. A storage medium storing instructions, characterized in that: When the instructions are executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 17 and 18 to 28.

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