Uplink switching methods, terminals, network devices, communication system, and medium

Abstract

The present disclosure relates to uplink switching methods, terminals, network devices, a communication system, and a medium. An uplink switching method comprises: determining to perform a first uplink transmission, the first uplink transmission comprising transmission in a first frequency band; determining a switching path of an uplink antenna of a terminal; and, according to the switching path, switching the uplink antenna of the terminal to the first frequency band so as to perform the first uplink transmission. The embodiments of the present disclosure can determine switching paths of uplink antennas, so as to help to accurately determine the first time for uplink switching.

Description

Uplink switching method, terminal, network equipment, communication system and medium Technical Field

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

[0002] In related technologies, terminals can perform uplink switching (UL Tx switching) across two frequency bands. With the development of communication technology, there is a need to support uplink switching across more frequency bands, for example, requiring terminals to support uplink switching across three or four frequency bands. Therefore, it is necessary to consider how to perform uplink switching.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide an uplink switching method, a terminal, a network device, a communication system, and a medium.

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

[0006] Determining to perform a first uplink transmission, where the first uplink transmission includes transmitting on a first frequency band;

[0007] determining a switching path for an uplink antenna of the terminal;

[0008] The uplink antenna of the terminal is switched to the first frequency band according to the switching path to perform the first uplink transmission.

[0009] According to a second aspect of an embodiment of the present disclosure, an uplink switching method is proposed, which is performed by a network device. The method includes:

[0010] Sending first information to a terminal, where the first information is used to schedule the terminal to perform a first uplink transmission, where the first uplink transmission includes transmission on a first frequency band;

[0011] determining a switching path for an uplink antenna of the terminal;

[0012] The terminal is not expected to perform uplink transmission within a first time, where the first time is determined based on the switching path.

[0013] According to a third aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0014] a processing module configured to determine that a first uplink transmission is to be performed, wherein the first uplink transmission comprises transmitting on a first frequency band;

[0015] The processing module is further configured to determine a switching path for the uplink antenna of the terminal, and switch the uplink antenna of the terminal to the first frequency band according to the switching path to perform the first uplink transmission.

[0016] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, comprising:

[0017] a transceiver module configured to send first information to a terminal, where the first information is used to schedule the terminal to perform a first uplink transmission, where the first uplink transmission includes transmission on a first frequency band;

[0018] The processing module is configured to determine a switching path for the uplink antenna of the terminal, and not expect the terminal to perform uplink transmission within a first time, where the first time is determined based on the switching path.

[0019] According to a fifth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the terminal is used to execute the uplink switching method proposed in the first aspect of the embodiment of the present disclosure.

[0020] According to a sixth aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the network device is used to execute the uplink switching method proposed in the second aspect of the embodiment of the present disclosure.

[0021] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a terminal and a network device, wherein the terminal is configured to implement the uplink switching method proposed in the first aspect of the embodiment of the present disclosure, and the network device is configured to implement the uplink switching method proposed in the second aspect of the embodiment of the present disclosure.

[0022] According to the eighth aspect of the embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the uplink switching method proposed in the first aspect of the embodiment of the present disclosure, or executes the uplink switching method proposed in the second aspect of the embodiment of the present disclosure.

[0023] The disclosed embodiments can determine the switching path of the uplink antenna, which is helpful for accurately determining the first time of uplink switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0026] FIG2 is an exemplary interaction diagram of an uplink switching method provided according to an embodiment of the present disclosure.

[0027] FIG3A is an exemplary flowchart of an uplink switching method provided according to an embodiment of the present disclosure.

[0028] FIG3B is an exemplary flowchart of an uplink switching method provided according to an embodiment of the present disclosure.

[0029] FIG3C is an exemplary flowchart of an uplink switching method provided according to an embodiment of the present disclosure.

[0030] FIG4A is an exemplary flowchart of an uplink switching method provided according to an embodiment of the present disclosure.

[0031] FIG4B is an exemplary flowchart of an uplink switching method provided according to an embodiment of the present disclosure.

[0032] FIG4C is an exemplary flowchart of an uplink switching method provided according to an embodiment of the present disclosure.

[0033] FIG5A is an exemplary schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure.

[0034] FIG5B is an exemplary schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure.

[0035] FIG6A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0036] FIG6B is an exemplary schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The embodiments of the present disclosure provide an uplink switching method, a terminal, a network device, a communication system, and a medium.

[0038] In a first aspect, an embodiment of the present disclosure provides an uplink handover method, which is performed by a terminal. The method includes:

[0039] Determining to perform a first uplink transmission, where the first uplink transmission includes transmitting on a first frequency band;

[0040] determining a switching path for an uplink antenna of the terminal;

[0041] The uplink antenna of the terminal is switched to the first frequency band according to the switching path to perform the first uplink transmission.

[0042] In the above embodiment, the terminal avoids the switching path ambiguity problem by determining the switching path of the uplink antenna, which is conducive to accurately determining the first time of uplink switching, and then switches the uplink antenna to the first frequency band to be transmitted according to the switching path.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0044] Sending first capability information to a network device, where the first capability information is used to indicate that the terminal supports M uplink antennas, and / or the first capability information is used to indicate that the terminal supports switching between M uplink antennas, where M is an integer greater than or equal to 3.

[0045] In the above embodiment, by reporting the first capability information to the network device, the network device can learn that the terminal supports M uplink antennas and / or supports switching between M uplink antennas, so as to schedule the first uplink transmission for the terminal.

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

[0047] Receive first information sent by a network device, where the first information is used to schedule the terminal to perform the first uplink transmission.

[0048] In the above embodiment, the network device may schedule the first uplink transmission for the terminal.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, determining the switching path of the uplink antenna of the terminal includes:

[0050] Determining a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band;

[0051] The switching path is determined according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

[0052] In the above embodiment, the switching path of the uplink antenna may be determined according to the non-related frequency bands of the first frequency band, and the uplink antenna on the related frequency band may be maintained.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the switching path includes switching all uplink antennas on non-related frequency bands of the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band.

[0054] In the above embodiment, by switching all uplink antennas on non-related frequency bands to the first frequency band to be transmitted, the switching path of the uplink antennas can be quickly determined, and the method is very simple.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0056] receiving second information sent by the network device, where the second information is used to indicate a number of antenna switches;

[0057] The determining the switching path according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission includes:

[0058] The switching path is determined according to the second information and a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

[0059] In the above embodiment, the switching path of the uplink antenna may be determined according to the number of antenna switching indicated by the network device and the non-related frequency bands of the first frequency band.

[0060] In combination with some embodiments of the first aspect, in some embodiments, the switching path includes switching the uplink antenna on a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band according to the number indicated by the second information.

[0061] In the above embodiment, the uplink antenna on the non-related frequency band of the first frequency band can be switched to the first frequency band to be transmitted according to the number of antenna switching indicated by the network device.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the first uplink transmission includes transmission of x ports on the first frequency band, where x is an integer greater than or equal to 1;

[0063] The determining a switching path of the uplink antenna of the terminal includes:

[0064] Determining a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission of x ports on a second frequency band;

[0065] The switching path is determined according to the second frequency band.

[0066] In the above embodiment, the uplink antennas corresponding to the transmissions of the x ports in the first uplink transmission are derived from the frequency bands corresponding to the transmissions of the x ports in the second uplink transmission, thereby determining the switching path.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, determining the switching path of the uplink antenna of the terminal includes:

[0068] Determining a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band;

[0069] The switching path is determined according to a frequency point of at least one frequency band of the second uplink transmission.

[0070] In the above embodiment, the switching path may be determined according to the frequency of at least one frequency band involved in the second uplink transmission, and the method is very simple.

[0071] In a second aspect, an embodiment of the present disclosure provides an uplink switching method, which is performed by a network device. The method includes:

[0072] Sending first information to a terminal, where the first information is used to schedule the terminal to perform a first uplink transmission, where the first uplink transmission includes transmission on a first frequency band;

[0073] determining a switching path for an uplink antenna of the terminal;

[0074] The terminal is not expected to perform uplink transmission within a first time, where the first time is determined based on the switching path.

[0075] In the above embodiment, the network device determines the switching path of the uplink antenna, which helps to accurately determine the first time of uplink switching, so that the terminal is not expected to perform uplink transmission in the first time.

[0076] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0077] Receive first capability information sent by the terminal, where the first capability information is used to indicate that the terminal supports M uplink antennas, and / or the first capability information is used to indicate that the terminal supports switching between M uplink antennas, where M is an integer greater than or equal to 3.

[0078] In conjunction with some embodiments of the second aspect, in some embodiments, determining the switching path of the uplink antenna of the terminal includes:

[0079] Determining a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band;

[0080] The switching path is determined according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

[0081] In combination with some embodiments of the second aspect, in some embodiments, the switching path includes switching all uplink antennas on non-related frequency bands of the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band.

[0082] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0083] sending second information to the terminal, where the second information is used to indicate a number of antenna switches;

[0084] The determining the switching path according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission includes:

[0085] The switching path is determined according to the second information and a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

[0086] In combination with some embodiments of the second aspect, in some embodiments, the switching path includes switching the uplink antenna on a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band according to the number indicated by the second information.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, the first uplink transmission includes transmission of x ports on the first frequency band, where x is an integer greater than or equal to 1;

[0088] The determining a switching path of the uplink antenna of the terminal includes:

[0089] Determining a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission of x ports on a second frequency band;

[0090] The switching path is determined according to the second frequency band.

[0091] In conjunction with some embodiments of the second aspect, in some embodiments, determining the switching path of the uplink antenna of the terminal includes:

[0092] Determining a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band;

[0093] The switching path is determined according to a frequency point of at least one frequency band of the second uplink transmission.

[0094] In a third aspect, an embodiment of the present disclosure provides a terminal, comprising:

[0095] a processing module configured to determine that a first uplink transmission is to be performed, wherein the first uplink transmission comprises transmitting on a first frequency band;

[0096] The processing module is further configured to determine a switching path for the uplink antenna of the terminal, and switch the uplink antenna of the terminal to the first frequency band according to the switching path to perform the first uplink transmission.

[0097] In a fourth aspect, an embodiment of the present disclosure provides a network device, comprising:

[0098] a transceiver module configured to send first information to a terminal, where the first information is used to schedule the terminal to perform a first uplink transmission, where the first uplink transmission includes transmission on a first frequency band;

[0099] The processing module is configured to determine a switching path for the uplink antenna of the terminal, and not expect the terminal to perform uplink transmission within a first time, where the first time is determined based on the switching path.

[0100] In a fifth aspect, an embodiment of the present disclosure proposes a terminal, comprising: one or more processors; wherein the terminal is used to execute the uplink switching method provided by the first aspect of the embodiment of the present disclosure or the optional implementation of the first aspect.

[0101] In a sixth aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the network device is used to execute the uplink switching method provided by the second aspect of the embodiment of the present disclosure or the optional implementation of the second aspect.

[0102] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, including a terminal and a network device, wherein the terminal is configured to implement the uplink switching method provided by the first aspect of the embodiment of the present disclosure or the optional implementation of the first aspect, and the network device is configured to implement the uplink switching method provided by the second aspect of the embodiment of the present disclosure or the optional implementation of the second aspect.

[0103] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes an uplink switching method as provided in the first aspect of the embodiment of the present disclosure or an optional implementation of the first aspect, or executes an uplink switching method as provided in the second aspect of the embodiment of the present disclosure or an optional implementation of the second aspect.

[0104] In the ninth aspect, an embodiment of the present disclosure proposes a program product. When the above-mentioned program product is executed by a communication device, the above-mentioned communication device executes the uplink switching method provided by the first aspect of the embodiment of the present disclosure or the optional implementation of the first aspect, or executes the uplink switching method provided by the second aspect of the embodiment of the present disclosure or the optional implementation of the second aspect.

[0105] In the tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when running on a computer, enables the computer to execute the uplink switching method provided by the first aspect of the embodiment of the present disclosure or the optional implementation of the first aspect, or to execute the uplink switching method provided by the second aspect of the embodiment of the present disclosure or the optional implementation of the second aspect.

[0106] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system. The chip or chip system includes a processing circuit configured to execute the uplink switching method provided according to the first aspect of the embodiment of the present disclosure or an optional implementation of the first aspect, or to execute the uplink switching method provided according to the second aspect of the embodiment of the present disclosure or an optional implementation of the second aspect.

[0107] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0108] The embodiments of the present disclosure provide an uplink switching method, a terminal, a network device, a communication system, and a medium. In some embodiments, the terms uplink switching method, uplink transmission method, communication method, etc. can be used interchangeably.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0114] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0122] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0123] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or 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)", etc.

[0124] In some embodiments, "terminal" or "terminal device" may be referred to as "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.

[0125] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0126] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0127] 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.

[0128] 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 .

[0129] 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.

[0130] In some embodiments, the network device 102 may include an access network device. The access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a NodeB (NB), a home nodeB (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 RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] 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).

[0136] Currently, NR supports a large amount of spectrum across various frequency ranges. In the low-frequency FR1 band, the available spectrum is more fragmented and the available bandwidth is generally narrow, making it more suitable for inter-band multi-carrier operations. In the FR2 band and some FR1 bands, the available spectrum can be wider, making it more suitable for intra-band multi-carrier operations. To meet the needs of different application scenarios and ensure the efficient use of both fragmented and wide spectrum, enhancements to uplink multi-carrier are needed.

[0137] The Rel-16 / 17 protocol has some limitations on uplink multi-carriers. For example, a terminal (2Tx UE) supporting two transmission links (2Tx) can be configured with a maximum of two uplink (UL) bands. The 2Tx UE can only perform antenna switching between the two UL bands, and these two UL bands can only be adjusted through Radio Resource Control (RRC) reconfiguration. The terminal dynamically selects carriers through uplink antenna switching, for example, based on data traffic, time division duplexing (TDD) configuration, frequency band bandwidth, and channel conditions, to achieve better uplink data rates, spectrum utilization, and uplink capacity. In the Rel-18 protocol, the 2Tx UE is allowed to be configured with more than two UL bands, such as three or four UL bands, and supports uplink antenna switching between more than two UL bands, also known as uplink switching. Therefore, the next step needs to consider how to perform uplink switching between more than two UL bands. In some embodiments, the terms uplink switching, uplink antenna switching, uplink transmission switching, etc. can be used interchangeably. It should be noted that Tx can be used interchangeably with antenna, transmission link, transmit link, RF chain, etc.

[0138] Currently, RAN4 supports terminals with three transmission links (3Tx) (3Tx UEs), simultaneously supporting two-port (2P) transmission on one frequency band and one-port (1P) transmission on another. Therefore, the next step is to consider how 3Tx UEs can perform uplink handover between more than two UL frequency bands. In some embodiments, the descriptions of antennas and transmission links (Tx) can be interchangeable. For example, "the terminal supports three antennas" and "the terminal supports three transmission links" can be interchangeable.

[0139] In the Rel-18 version of the protocol, it is allowed to configure related bands for each frequency band. When a frequency band is configured as a related band, the uplink antenna will eventually need to be switched to this frequency band and its related bands. For example, the related band configuration includes: (1) Band B is the related band of Band A; (2) Band A is the related band of Band B; (3) Band A is the related band of Band C; (4) Band C is the related band of Band D.

[0140] In one example, when a terminal is about to perform an uplink transmission on frequency band C, and the terminal's uplink antenna is currently associated with frequency bands A and B, according to the above-mentioned related frequency band configuration, since frequency band A is a related frequency band of frequency band C, the uplink antenna on frequency band B needs to be switched to frequency band C, while the uplink antenna on frequency band A remains unchanged. In another example, when a terminal is about to perform an uplink transmission on frequency band D, and the terminal's uplink antenna is currently associated with frequency bands A and B, according to the above-mentioned related frequency band configuration, since frequency band C is a related frequency band of frequency band D, the uplink antenna on frequency band A needs to be switched to frequency band D, and the uplink antenna on frequency band B needs to be switched to frequency band C; or conversely, the uplink antenna on frequency band B needs to be switched to frequency band D, and the uplink antenna on frequency band A needs to be switched to frequency band C.

[0141] In some uplink handover scenarios, the uplink antenna switching path may be ambiguous. In one example, the terminal's current uplink transmission includes single-port transmission on frequency band A and dual-port transmission on frequency band B. The terminal's upcoming uplink transmission includes single-port transmission on frequency band C. If the network device instructs the terminal to switch an uplink antenna, the terminal may switch from one uplink antenna on frequency band A to frequency band C, or from one uplink antenna on frequency band B to frequency band C. Because the switching time between different frequency bands is different, and since it is uncertain which frequency band (or bands) the terminal will switch antennas to, this can lead to ambiguous judgment regarding uplink handover.

[0142] FIG2 is an interactive diagram of an uplink switching method according to an embodiment of the present disclosure. As shown in FIG2 , the uplink switching method includes:

[0143] Step S2101: The terminal sends first capability information to the network device.

[0144] In some embodiments, the first capability information is used to report terminal capabilities to a network device.

[0145] In some embodiments, the first capability information is used to indicate that the terminal supports M uplink antennas.

[0146] In some embodiments, the first capability information is used to indicate that the terminal supports switching between M uplink antennas.

[0147] In some embodiments, the first capability information is used to indicate that the terminal supports switching between M uplink antennas and M uplink antennas.

[0148] In some embodiments, the terminal supports M uplink antennas, which can be interpreted as the terminal including M uplink antennas.

[0149] Optionally, M is at least an integer greater than or equal to 2. In some embodiments, M is an integer greater than or equal to 3.

[0150] In some embodiments, a network device receives first capability information sent by a terminal, and the network device learns, based on the received first capability information, that the terminal supports M uplink antennas and / or supports switching between the M uplink antennas. For example, the network device may learn that the terminal supports three uplink antennas and / or switching between the three uplink antennas.

[0151] In some embodiments, terms such as uplink antenna, transmission link, send link, and radio frequency chain can be used interchangeably. For example, the first capability information is used to indicate that the terminal supports M transmission links and / or supports switching between M transmission links.

[0152] In some embodiments, this step is optional.

[0153] Step S2102: The network device sends first information to the terminal.

[0154] In some embodiments, the first information is used to schedule a terminal to perform a first uplink transmission. The first uplink transmission includes transmission on a first frequency band. Optionally, the first uplink transmission includes transmission of x ports on the first frequency band. Optionally, x is an integer greater than or equal to 1. For example, the first uplink transmission includes transmission of 1 port on the first frequency band. For example, the first uplink transmission includes transmission of 2 ports on the first frequency band. For example, the first uplink transmission includes transmission of 3 ports on the first frequency band.

[0155] In some embodiments, the terminal receives first information sent by the network device, and determines to perform a first uplink transmission based on the first information.

[0156] In some embodiments, this step is optional. In an optional implementation, the terminal may determine the first uplink transmission independently of the scheduling of the network device. For example, the terminal may determine the first uplink transmission independently within a configuration grant (CG) period of the uplink transmission.

[0157] Step S2103: The terminal determines a switching path for the uplink antenna.

[0158] In some embodiments, the terminal determines a switching path for the uplink antenna according to a first uplink transmission and a second uplink transmission. The second uplink transmission is a transmission performed by the terminal before the first uplink transmission.

[0159] In some embodiments, the uplink antenna switching path is used to indicate which uplink antenna on which frequency band (or bands) is switched to the first frequency band. Optionally, the uplink antenna switching path is also used to indicate the number of uplink antennas to be switched for each frequency band to be switched, that is, the number of uplink antennas on the frequency band to be switched that need to be switched to the first frequency band. Exemplarily, the uplink antenna switching path includes switching a uplink antennas on the second frequency band to the first frequency band, where a is an integer greater than or equal to 1.

[0160] In some embodiments, the terminal may determine the switching path of the uplink antenna including but not limited to the following optional implementations:

[0161] Method 1:

[0162] The terminal determines a second uplink transmission to be performed before the first uplink transmission, wherein the second uplink transmission includes transmission on at least one frequency band, and determines a switching path based on a non-related frequency band of the first frequency band in the at least one frequency band involved in the second uplink transmission.

[0163] In some embodiments, related frequency bands are configured for the first frequency band in advance. For example, the network device configures one or more related frequency bands for the first frequency band.

[0164] In some embodiments, among the at least one frequency band involved in the second uplink transmission, other frequency bands except the related frequency band of the first frequency band are non-related frequency bands of the first frequency band.

[0165] According to the above implementation, the switching path of the uplink antenna can be determined according to the non-related frequency bands of the first frequency band, and the uplink antenna on the related frequency band can be maintained.

[0166] In some embodiments, the switching path may include partially switching uplink antennas on frequency bands unrelated to the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band.

[0167] In some embodiments, the switching path may include switching all uplink antennas on frequency bands not related to the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band.

[0168] According to the above implementation, by switching all uplink antennas on non-related frequency bands to the first frequency band to be transmitted, the switching path of the uplink antennas can be quickly determined, and the method is very simple.

[0169] In some implementations, the first uplink transmission includes 1-port transmission on frequency band C (first frequency band), the second uplink transmission includes 1-port transmission on frequency band A and 2-port transmission on frequency band B, and the related frequency band of frequency band C is frequency band A. Therefore, based on the non-related frequency band of the first frequency band, that is, frequency band B, the switching path is determined to include: the two uplink antennas on frequency band B are switched to frequency band C.

[0170] In some implementations, the first uplink transmission includes 2-port transmission on frequency band C (first frequency band), the second uplink transmission includes 1-port transmission on frequency band A and 2-port transmission on frequency band B, and the related frequency band of frequency band C is frequency band B. Therefore, based on the non-related frequency band of the first frequency band, that is, frequency band A, determining the switching path includes: an uplink antenna on frequency band A is switched to frequency band C.

[0171] In some implementations, the first uplink transmission includes one-port transmission on frequency band D (first frequency band), the second uplink transmission includes one-port transmission on frequency band A, one-port transmission on frequency band B, and one-port transmission on frequency band C, and the related frequency band of frequency band D is frequency band B. Therefore, based on the non-related frequency bands of the first frequency band, namely, frequency band A and frequency band C, determining the switching path includes: an uplink antenna on frequency band A is switched to frequency band D and an uplink antenna on frequency band C is switched to frequency band D.

[0172] Method 2:

[0173] The terminal receives second information sent by the network device, the second information being used to indicate a number of antenna switches. The terminal determines a second uplink transmission to be performed before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band. The terminal determines a switching path based on the second information and a non-related frequency band of the first frequency band in the at least one frequency band involved in the second uplink transmission.

[0174] In some embodiments, related frequency bands are configured for the first frequency band in advance. For example, the network device configures one or more related frequency bands for the first frequency band.

[0175] In some embodiments, among the at least one frequency band involved in the second uplink transmission, other frequency bands except the related frequency band of the first frequency band are non-related frequency bands of the first frequency band.

[0176] According to the above implementation, the switching path of the uplink antenna may be determined according to the number of antenna switching indicated by the network device and the non-related frequency bands of the first frequency band.

[0177] In some embodiments, the number of antenna switching indicated by the second information may be an integer greater than or equal to 1.

[0178] In some embodiments, the terminal receives first RRC signaling sent by the network device, where the first RRC signaling includes second information.

[0179] In some embodiments, the number of uplink antenna switches included in the switching path may be the same as or different from the number of antenna switches indicated in the second information. Optionally, the terminal switches the uplink antenna according to the switching path, so the actual number of uplink antenna switches of the terminal may be the same as or different from the number of antenna switches indicated in the second information.

[0180] In some embodiments, the switching path includes switching uplink antennas on non-related frequency bands of the first frequency band among the at least one frequency band involved in the second uplink transmission to the first frequency band according to the number indicated by the second information. Optionally, the switching path also includes partially switching uplink antennas on related frequency bands of the first frequency band among the at least one frequency band involved in the second uplink transmission to the first frequency band.

[0181] In some embodiments, when the number of uplink antennas on non-related frequency bands of the first frequency band in at least one frequency band of the second uplink transmission is greater than or equal to the number indicated by the second information, the switching path includes switching the uplink antennas on non-related frequency bands of the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band according to the number indicated by the second information.

[0182] In some embodiments, if the number of uplink antennas on non-correlated frequency bands of the first frequency band in the at least one frequency band for the second uplink transmission is less than the number indicated by the second information, the switching path includes switching all uplink antennas on non-correlated frequency bands of the first frequency band in the at least one frequency band for the second uplink transmission to the first frequency band. In a further optional implementation, the switching path also includes switching some uplink antennas on relevant frequency bands of the first frequency band in the at least one frequency band for the second uplink transmission to the first frequency band.

[0183] In some implementations, the second information indicates switching of an uplink antenna. The first uplink transmission includes one-port transmission on frequency band C (the first frequency band), and the second uplink transmission includes one-port transmission on frequency band A and two-port transmission on frequency band B. The relevant frequency band of frequency band C is frequency band A. Therefore, based on the second information and the non-relevant frequency bands of the first frequency band, determining the switching path includes switching the one uplink antenna on frequency band B to frequency band C.

[0184] In some implementations, the second information indicates switching between two uplink antennas. The first uplink transmission includes single-port transmission on frequency band C (a first frequency band), and the second uplink transmission includes single-port transmission on frequency band A and two-port transmission on frequency band B. The relevant frequency band for frequency band C is frequency band A. Therefore, based on the second information and the non-relevant frequency bands of the first frequency band, determining the switching path includes switching the two uplink antennas on frequency band B to frequency band C.

[0185] In some implementations, the second information indicates switching between two uplink antennas. The first uplink transmission includes one-port transmission on frequency band C (a first frequency band), and the second uplink transmission includes one-port transmission on frequency band A and two-port transmission on frequency band B. The related frequency band of frequency band C is frequency band B. Therefore, based on the second information and the non-related frequency bands of the first frequency band, determining the switching path includes switching one uplink antenna on frequency band A to frequency band C.

[0186] In some implementations, the second information indicates switching between two uplink antennas. The first uplink transmission includes two-port transmission on frequency band C (the first frequency band), and the second uplink transmission includes one-port transmission on frequency band A and two-port transmission on frequency band B. The relevant frequency band for frequency band C is frequency band B. Based on the second information and the non-relevant frequency bands of the first frequency band, determining the switching path includes switching one uplink antenna on frequency band A to frequency band C. In a further optional implementation, the switching path also includes switching one uplink antenna on frequency band B to frequency band C. According to this optional implementation, after switching one uplink antenna on frequency band B to frequency band C, the terminal still maintains one uplink antenna on frequency band B.

[0187] In some implementations, the second information indicates switching an uplink antenna. The first uplink transmission includes 1-port transmission on frequency band D (the first frequency band), and the second uplink transmission includes 1-port transmission on frequency band A, 1-port transmission on frequency band B, and 1-port transmission on frequency band C, and the related frequency band of frequency band D is frequency band B. Therefore, based on the second information and the non-related frequency bands of the first frequency band, determining the switching path includes: switching an uplink antenna on frequency band A to frequency band D, or switching an uplink antenna on frequency band C to frequency band D. In a further optional implementation, the terminal determines the antenna switching time, i.e., the first time, based on the above-mentioned switching path. The first time is determined based on the first switching time when frequency band A switches to frequency band D, and the second switching time when frequency band C switches to frequency band D. Optionally, the first time is the maximum value of the first switching time and the second switching time.

[0188] In some implementations, the second information indicates switching between two uplink antennas. The first uplink transmission includes single-port transmission on frequency band D (the first frequency band), and the second uplink transmission includes single-port transmission on frequency band A, single-port transmission on frequency band B, and single-port transmission on frequency band C. The related frequency band of frequency band D is frequency band B. Therefore, based on the second information and the non-related frequency bands of the first frequency band, determining the switching path includes switching one uplink antenna on frequency band A and one uplink antenna on frequency band C to frequency band D.

[0189] In some implementations, the second information indicates switching between two uplink antennas. The first uplink transmission includes single-port transmission on frequency band D (a first frequency band), and the second uplink transmission includes single-port transmission on frequency band A, single-port transmission on frequency band B, and single-port transmission on frequency band C. The relevant frequency bands for frequency band D are frequency band A and frequency band B. Therefore, based on the second information and the non-relevant frequency bands of the first frequency band, determining the switching path includes switching one uplink antenna on frequency band C to frequency band D.

[0190] Method 3:

[0191] According to an optional implementation, the first uplink transmission includes transmission of x ports on a first frequency band, where x is an integer greater than or equal to 1.

[0192] The terminal determines a second uplink transmission to be performed before the first uplink transmission, wherein the second uplink transmission includes transmission of x ports in a second frequency band, and determines a switching path of an uplink antenna according to the second frequency band.

[0193] In some embodiments, the switching path includes switching an uplink antenna on the second frequency band to the first frequency band.

[0194] In some embodiments, the second uplink transmission includes transmission on at least two frequency bands, the second frequency band being one of the at least two frequency bands. Optionally, the second uplink transmission includes transmission on x ports on the second frequency band and transmission on y ports on the third frequency band. Optionally, the second uplink transmission includes transmission on x ports on the second frequency band, transmission on y ports on the third frequency band, and transmission on z ports on the fourth frequency band. Optionally, y and z are integers greater than or equal to 1.

[0195] According to the above implementation, the uplink antennas corresponding to the transmissions of the x ports in the first uplink transmission are derived from the frequency bands corresponding to the transmissions of the x ports in the second uplink transmission.

[0196] In some implementations, the first uplink transmission includes single-port transmission on frequency band C (the first frequency band), and the second uplink transmission includes single-port transmission on frequency band A (the second frequency band) and dual-port transmission on frequency band B. The uplink antenna corresponding to the single-port transmission on frequency band C is switched from frequency band A, which also uses single-port transmission. Therefore, determining the switching path includes: the uplink antenna on frequency band A is switched to frequency band C. Optionally, the switching path includes: all uplink antennas on frequency band A are switched to frequency band C.

[0197] In some implementations, the first uplink transmission includes two-port transmission on frequency band C (a first frequency band), and the second uplink transmission includes one-port transmission on frequency band A and two-port transmission on frequency band B (a second frequency band). The uplink antenna corresponding to the two-port transmission on frequency band C is switched from frequency band B, which also uses two-port transmission. Therefore, determining the switching path includes: the uplink antenna on frequency band B is switched to frequency band C. Optionally, the switching path includes: all uplink antennas on frequency band B are switched to frequency band C.

[0198] Method 4:

[0199] The terminal determines a second uplink transmission to be performed before the first uplink transmission, wherein the second uplink transmission includes transmission on at least one frequency band. The terminal determines a switching path according to a frequency point of the at least one frequency band involved in the second uplink transmission.

[0200] According to the above implementation, the switching path may be determined according to the frequency of at least one frequency band involved in the second uplink transmission.

[0201] In some embodiments, based on the frequency of at least one frequency band of the second uplink transmission, an uplink antenna with a low frequency in the at least one frequency band is preferentially switched to the first frequency band.

[0202] In some embodiments, based on the frequency of at least one frequency band of the second uplink transmission, the uplink antenna with a high frequency in the at least one frequency band is preferentially switched to the first frequency band.

[0203] In some implementations, if switching path ambiguity occurs, for example, an uplink antenna on frequency band A or an uplink antenna on frequency band B may both switch to frequency band C (first frequency band), then based on the frequencies of frequency band A and frequency band B, since the frequency of frequency band A is lower than the frequency of frequency band B, the switching path is determined to include: an uplink antenna on frequency band A is switched to frequency band C.

[0204] It is worth noting that, in the embodiments of the present disclosure, the above-mentioned multiple optional implementation methods for determining the switching path can be combined with each other when there is no contradiction. For example, when the first RRC signaling is not configured or the first RRC signaling configuration is ignored, the terminal can determine the switching path based on the non-related frequency band of the first frequency band in at least one frequency band involved in the second uplink transmission, or the terminal can determine the switching path based on the second frequency band corresponding to the transmission of x ports in the second uplink transmission. For example, when the first RRC signaling is configured, the terminal can determine the switching path based on the second information configured by the first RRC signaling and the non-related frequency band of the first frequency band in at least one frequency band involved in the second uplink transmission. For example, in each of the above processes, if the switching path ambiguity occurs, the terminal can also determine the switching path based on the frequency points of each frequency band where the path ambiguity occurs. The embodiments of the present disclosure do not list all possible combinations one by one.

[0205] Step S2104: The terminal performs uplink switching according to the switching path.

[0206] In some embodiments, the terminal performs uplink switching within a first time according to the switching path of the uplink antenna. Optionally, the terminal switches the uplink antenna to a first frequency band within a first time according to the switching path of the uplink antenna to perform a first uplink transmission.

[0207] In some embodiments, the terminal determines the first time according to the switching path of the uplink antenna, and the first time is the antenna switching time.

[0208] In some embodiments, the terminal is not expected to perform uplink transmission within the first time. Optionally, the terminal is not expected to perform uplink transmission on at least one frequency band involved in the first uplink transmission and the second uplink transmission within the first time.

[0209] In some embodiments, "the terminal is not expected to perform uplink transmission within the first time" can be interpreted as the terminal is not scheduled to perform uplink transmission within the first time, or the terminal does not perform uplink transmission within the first time, or the terminal performs uplink transmission within the first time but does not expect the recipient to respond to the sent uplink transmission.

[0210] Step S2105: The network device determines a switching path for the uplink antenna of the terminal.

[0211] In some embodiments, the optional implementation manner in which the network device determines the switching path of the uplink antenna of the terminal is consistent with the optional implementation manner in which the terminal determines the switching path of the uplink antenna.

[0212] The optional implementation of step S2105 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0213] Step S2106: The network device does not expect the terminal to perform uplink transmission within the first time.

[0214] In some embodiments, the network device determines the first time according to a switching path of an uplink antenna of the terminal.

[0215] In some embodiments, the network device does not expect the terminal to perform an uplink transmission within a first time period. Optionally, the network device does not expect the terminal to perform an uplink transmission within a first time period on at least one frequency band involved in the first uplink transmission and the second uplink transmission. Optionally, the network device does not schedule the terminal to perform an uplink transmission within a first time period. Optionally, the network device does not schedule the terminal to perform an uplink transmission within a first time period on at least one frequency band involved in the first uplink transmission and the second uplink transmission.

[0216] In some embodiments, "the network device does not expect the terminal to perform uplink transmission within the first time" can be interpreted as the network device does not schedule the terminal to perform uplink transmission within the first time, or the network device does not receive the uplink transmission of the terminal within the first time, or the network device receives the uplink transmission of the terminal within the first time but does not perform subsequent processing on the uplink transmission.

[0217] According to an embodiment of the present disclosure, the terminal reports first capability information to the network device, so that the network device can learn that the terminal supports M uplink antennas and / or switching between M uplink antennas, and thus can schedule the first uplink transmission for the terminal. The terminal determines the switching path of the uplink antenna based on the first uplink transmission, avoiding the problem of ambiguity in the switching path, which is conducive to accurately judging the first time of the uplink switching, and then performs the uplink switching within the first time according to the switching path of the uplink antenna. The network device also determines the switching path of the uplink antenna of the terminal, determines the first time according to the switching path, and does not expect the terminal to perform uplink transmission within the first time. Optionally, because the terminal and the network device use the same rules to determine the switching path of the uplink antenna, both parties accurately judge the first time of the uplink switching.

[0218] The uplink handover method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2106. For example, step S2103 may be implemented as an independent embodiment, step S2105 may be implemented as an independent embodiment, steps S2103+S2104 may be implemented as an independent embodiment, and steps S2105+S2106 may be implemented as independent embodiments, but are not limited thereto.

[0219] In some embodiments, step S2101, step S2102, and step S2104 to step S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0220] In some embodiments, steps S2101 to S2104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0221] FIG3A is a flow chart of an uplink handover method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to an uplink handover method, which is executed by a terminal, as shown in FIG3A , and includes:

[0222] Step S3101: Determine whether to perform a first uplink transmission.

[0223] In some embodiments, the first uplink transmission includes transmitting on a first frequency band. Optionally, the first uplink transmission includes transmitting on port x on the first frequency band. Optionally, x is an integer greater than or equal to 1.

[0224] In some embodiments, the terminal receives first information sent by the network device and determines to perform a first uplink transmission based on the first information. The first information is used to schedule the terminal to perform the first uplink transmission.

[0225] The optional implementation of step S3101 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0226] Step S3102: Determine a second uplink transmission performed before the first uplink transmission.

[0227] In some embodiments, the second uplink transmission includes transmitting on at least one frequency band. Optionally, the second uplink transmission includes transmitting on x ports on a second frequency band.

[0228] Step S3103: Determine a switching path for the uplink antenna according to the first uplink transmission and the second uplink transmission.

[0229] In some embodiments, the terminal determines a switching path for the uplink antenna according to a non-correlated frequency band of the first frequency band in at least one frequency band involved in the second uplink transmission.

[0230] In some embodiments, the terminal determines a switching path for the uplink antenna according to the second information and a non-related frequency band of the first frequency band in the at least one frequency band involved in the second uplink transmission.

[0231] In some embodiments, the terminal determines a switching path for the uplink antenna according to a second frequency band involved in the second uplink transmission.

[0232] In some embodiments, the terminal determines a switching path for the uplink antenna according to a frequency point of at least one frequency band involved in the second uplink transmission.

[0233] The optional implementation of steps S3102 to S3103 can refer to the optional implementation of step S2103 in FIG2 and other related parts in the embodiment involved in FIG2 , which will not be described in detail here.

[0234] Step S3104: Perform uplink switching according to the switching path.

[0235] In some embodiments, the terminal performs uplink switching within a first time according to the switching path of the uplink antenna. Optionally, the terminal switches the uplink antenna to a first frequency band within a first time according to the switching path of the uplink antenna to perform a first uplink transmission.

[0236] In some embodiments, the terminal determines the first time according to the switching path of the uplink antenna, and the first time is the antenna switching time.

[0237] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0238] According to the embodiment of the present disclosure, the terminal determines the switching path of the uplink antenna based on the first uplink transmission and the second uplink transmission, thereby determining which / which frequency bands to switch the antenna from, avoiding the problem of ambiguity in the switching path, and facilitating accurate judgment of the first time of the uplink switching. Then, according to the switching path, the uplink antenna is switched to the first frequency band to be transmitted within the first time to perform the first uplink transmission.

[0239] In some embodiments, the method further includes: sending first capability information to the network device. Optionally, the first capability information is used to indicate that the terminal supports M uplink antennas and / or supports switching between M uplink antennas.

[0240] According to an embodiment of the present disclosure, by reporting the first capability information to the network device, the network device can learn that the terminal supports M uplink antennas and / or supports switching between M uplink antennas, thereby scheduling the first uplink transmission for the terminal.

[0241] FIG3B is a flow chart of an uplink switching method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to an uplink switching method, which is executed by a terminal, as shown in FIG3B , and includes:

[0242] Step S3201: Determine whether to perform a first uplink transmission.

[0243] In some embodiments, the first uplink transmission includes transmitting on a first frequency band. Optionally, the first uplink transmission includes transmitting on port x on the first frequency band. Optionally, x is an integer greater than or equal to 1.

[0244] In some embodiments, the terminal receives first information sent by the network device and determines to perform a first uplink transmission based on the first information. The first information is used to schedule the terminal to perform the first uplink transmission.

[0245] The optional implementation of step S3201 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0246] Step S3202: Determine a second uplink transmission performed before the first uplink transmission.

[0247] In some embodiments, the second uplink transmission includes transmitting on at least one frequency band. Optionally, the second uplink transmission includes transmitting on x ports on a second frequency band.

[0248] Step S3203, receiving the second information.

[0249] In some embodiments, the terminal receives second information sent by the network device. Optionally, the second information is used to indicate the number of antenna switches.

[0250] In some embodiments, the number of antenna switching indicated by the second information may be an integer greater than or equal to 1.

[0251] In some embodiments, the terminal receives first RRC signaling sent by the network device, where the first RRC signaling includes second information.

[0252] In some embodiments, step S3201 and step S3203 may be executed in an interchanged order or simultaneously.

[0253] In some embodiments, step S3202 and step S3203 may be executed in an interchanged order or simultaneously.

[0254] Step S3204: Determine a switching path for the uplink antenna according to the first uplink transmission, the second uplink transmission, and the second information.

[0255] In some embodiments, the terminal determines a switching path for the uplink antenna according to the second information and a non-related frequency band of the first frequency band in the at least one frequency band involved in the second uplink transmission.

[0256] The optional implementation of step S3204 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0257] Step S3205: Perform uplink switching according to the switching path.

[0258] In some embodiments, the terminal performs uplink switching within a first time according to the switching path of the uplink antenna. Optionally, the terminal switches the uplink antenna to a first frequency band within a first time according to the switching path of the uplink antenna to perform a first uplink transmission.

[0259] In some embodiments, the terminal determines the first time according to the switching path of the uplink antenna, and the first time is the antenna switching time.

[0260] The optional implementation of step S3205 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0261] According to an embodiment of the present disclosure, the terminal receives the second information, and determines the switching path of the uplink antenna based on the first uplink transmission and the second uplink transmission, combined with the number of antenna switches indicated by the second information, thereby avoiding the problem of ambiguity in the switching path, facilitating accurate judgment of the first time of the uplink switching, and then switching the uplink antenna to the first frequency band to be transmitted within the first time according to the switching path.

[0262] In some embodiments, the method further includes: sending first capability information to the network device. Optionally, the first capability information is used to indicate that the terminal supports M uplink antennas and / or supports switching between M uplink antennas.

[0263] According to an embodiment of the present disclosure, by reporting the first capability information to the network device, the network device can learn that the terminal supports M uplink antennas and / or supports switching between M uplink antennas, thereby scheduling the first uplink transmission for the terminal.

[0264] FIG3C is a flow chart of an uplink switching method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to an uplink switching method, which is executed by a terminal, as shown in FIG3C , and includes:

[0265] Step S3301: Determine whether to perform a first uplink transmission.

[0266] The optional implementation of step S3301 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0267] Step S3302: Determine the switching path of the uplink antenna.

[0268] The optional implementation of step S3302 can refer to the optional implementation of step S2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0269] Step S3303: Perform uplink switching according to the switching path.

[0270] In some embodiments, the terminal performs uplink switching within a first time according to the switching path of the uplink antenna. Optionally, the terminal switches the uplink antenna to a first frequency band within a first time according to the switching path of the uplink antenna to perform a first uplink transmission.

[0271] In some embodiments, the terminal determines the first time according to the switching path of the uplink antenna, and the first time is the antenna switching time.

[0272] The optional implementation of step S3303 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0273] According to the embodiment of the present disclosure, the terminal avoids the switching path ambiguity problem by determining the switching path of the uplink antenna, which is conducive to accurately judging the first time of the uplink switching, and then switches the uplink antenna to the first frequency band to be transmitted within the first time according to the switching path.

[0274] In some embodiments, the method further includes: sending first capability information to the network device. Optionally, the first capability information is used to indicate that the terminal supports M uplink antennas and / or supports switching between M uplink antennas.

[0275] According to an embodiment of the present disclosure, by reporting the first capability information to the network device, the network device can learn that the terminal supports M uplink antennas and / or supports switching between M uplink antennas, thereby scheduling the first uplink transmission for the terminal.

[0276] FIG4A is a flow chart of an uplink switching method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to an uplink switching method, which is executed by a network device, as shown in FIG4A , and includes:

[0277] Step S4101: Send first information to the terminal.

[0278] In some embodiments, the first information is used to schedule the terminal to perform a first uplink transmission, the first uplink transmission including transmission on a first frequency band. Optionally, the first uplink transmission includes transmission of an x-port on the first frequency band. The first uplink transmission is the transmission that the terminal is about to perform.

[0279] The optional implementation of step S4101 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0280] In some embodiments, this step is optional. For example, the terminal may determine the first uplink transmission not based on the scheduling of the network device.

[0281] Step S4102: Send second information to the terminal.

[0282] In some embodiments, the second information is used to indicate the number of antenna switches.

[0283] In some embodiments, the number of antenna switching indicated by the second information may be an integer greater than or equal to 1.

[0284] In some embodiments, first RRC signaling is sent to the terminal, where the first RRC signaling includes second information.

[0285] In some embodiments, this step is optional. For example, the terminal may not determine the switching path of the uplink antenna based on the second information.

[0286] In some embodiments, step S4101 and step S4102 may be executed in an interchanged order or simultaneously.

[0287] Step S4103: Determine a switching path for the uplink antenna of the terminal according to the first uplink transmission and the second uplink transmission of the terminal.

[0288] In some embodiments, the second uplink transmission is a transmission performed by the terminal before the first uplink transmission.

[0289] In some embodiments, a switching path of the uplink antenna of the terminal may be determined according to the second information, the first uplink transmission and the second uplink transmission of the terminal.

[0290] The optional implementation of step S4103 can be found in step S2105 of FIG. 2 , the optional implementation of step S2102 , and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0291] Step S4104: The terminal is not expected to perform uplink transmission within the first time.

[0292] In some embodiments, the network device determines the first time according to a switching path of an uplink antenna of the terminal.

[0293] In some embodiments, the network device does not expect the terminal to perform an uplink transmission within a first time period. Optionally, the network device does not expect the terminal to perform an uplink transmission within a first time period on at least one frequency band involved in the first uplink transmission and the second uplink transmission. Optionally, the network device does not schedule the terminal to perform an uplink transmission within a first time period. Optionally, the network device does not schedule the terminal to perform an uplink transmission within a first time period on at least one frequency band involved in the first uplink transmission and the second uplink transmission.

[0294] The optional implementation of step S4104 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0295] According to the embodiment of the present disclosure, the network device determines the switching path of the terminal's uplink antenna, which is conducive to accurately judging the first time of the terminal's uplink switching, so that the terminal is not expected to perform uplink transmission in the first time.

[0296] In some embodiments, the method further includes: receiving first capability information sent by the terminal. Optionally, the first capability information is used to indicate that the terminal supports M uplink antennas and / or supports switching between M uplink antennas.

[0297] According to the embodiment of the present disclosure, through the first capability information reported by the terminal, the network device can know that the terminal supports M uplink antennas and / or supports switching between M uplink antennas, which is conducive to scheduling the first uplink transmission for the terminal.

[0298] FIG4B is a flow chart of an uplink switching method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to an uplink switching method, which is executed by a network device, as shown in FIG4B , and includes:

[0299] Step S4201: Send first information to the terminal.

[0300] In some embodiments, the first information is used to schedule the terminal to perform a first uplink transmission, the first uplink transmission including transmission on a first frequency band. Optionally, the first uplink transmission includes transmission of an x-port on the first frequency band. The first uplink transmission is the transmission that the terminal is about to perform.

[0301] The optional implementation of step S4201 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0302] In some embodiments, this step is optional. For example, the terminal may determine the first uplink transmission not based on the scheduling of the network device.

[0303] Step S4202: Determine a switching path for the uplink antenna of the terminal according to the first uplink transmission and the second uplink transmission of the terminal.

[0304] In some embodiments, the second uplink transmission is a transmission performed by the terminal before the first uplink transmission.

[0305] The optional implementation of step S4202 can be found in step S2105 of FIG. 2 , the optional implementation of step S2102 , and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0306] Step S4203: The terminal is not expected to perform uplink transmission within the first time.

[0307] The optional implementation of step S4203 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0308] According to the embodiment of the present disclosure, the network device determines the switching path of the terminal's uplink antenna, which is conducive to accurately judging the first time of the terminal's uplink switching, so that the terminal is not expected to perform uplink transmission in the first time.

[0309] In some embodiments, the method further includes: receiving first capability information sent by the terminal. Optionally, the first capability information is used to indicate that the terminal supports M uplink antennas and / or supports switching between M uplink antennas.

[0310] According to the embodiment of the present disclosure, through the first capability information reported by the terminal, the network device can know that the terminal supports M uplink antennas and / or supports switching between M uplink antennas, which is conducive to scheduling the first uplink transmission for the terminal.

[0311] FIG4C is a flow chart of an uplink switching method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to an uplink switching method, which is executed by a network device, as shown in FIG4C , and includes:

[0312] Step S4301: Determine the switching path of the uplink antenna of the terminal.

[0313] The optional implementation of step S4301 can be found in step S2105 of FIG. 2 , the optional implementation of step S2102 , and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0314] Step S4302: The terminal is not expected to perform uplink transmission within the first time.

[0315] The optional implementation of step S4302 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0316] According to the embodiment of the present disclosure, the network device determines the switching path of the terminal's uplink antenna, which is conducive to accurately judging the first time of the terminal's uplink switching, so that the terminal is not expected to perform uplink transmission in the first time.

[0317] According to an embodiment of the present disclosure, a UE indicates a first capability for uplink handover in a frequency band combination, and the band combination is configured with uplink carrier aggregation. The first capability is used to indicate that the UE supports three uplink antennas and / or handover between three uplink antennas. Optionally, the band combination includes at least two bands.

[0318] To address the issue of handover path ambiguity, the present disclosure proposes the following three solutions:

[0319] The first method is to determine the handover path based on the relevant bands and ignore the configuration of the first RRC signaling. For example, the Tx of all non-relevant bands is switched to the band to be transmitted, while the Tx of the relevant bands is maintained.

[0320] The second method is to determine the switching path based on the previous transmission scheduling. For example, when the previous transmission of x-port and y-port involves two or more bands, the antenna that will transmit x-port comes from the band corresponding to the previous transmission of x-port.

[0321] The third method is to determine the switching path based on the band frequency. For example, in the case of ambiguity, the low-frequency or high-frequency Tx is prioritized.

[0322] The method for a UE or a base station to determine an uplink transmission link (UL Tx) switching path includes at least one of the following:

[0323] Method 1:

[0324] When the first RRC signaling is not configured or the first RRC signaling configuration is ignored, Tx of all non-related bands is switched to the band to be transmitted, while Tx of the related band is maintained.

[0325] In some embodiments, the previous transmission is a 1P transmission on an uplink carrier of band A and a 2P transmission on an uplink carrier of band B, and a 1P transmission on an uplink carrier of band C is to be transmitted, and the related band of band C is band A. Then, both 2Tx on band B are switched to band C.

[0326] In some embodiments, the previous transmission is a 1P transmission on an uplink carrier of band A and a 2P transmission on an uplink carrier of band B, and a 2P transmission is to be transmitted on an uplink carrier of band C, and the related band of band C is band B. Then, all 1Tx on band A are switched to band C.

[0327] In some embodiments, the previous transmission is a 1P transmission on an uplink carrier of bands A, B, and C, and the next 1P transmission is to be transmitted on an uplink carrier of band D, and the related band of band D is band B. Then, a total of 2 Txs on bands A and C are switched to band D.

[0328] Method 2:

[0329] Considering the first RRC signaling, Tx of all non-related bands is switched to the band to be transmitted according to the number indicated by the first RRC signaling, while Tx of the related band is maintained.

[0330] In some embodiments, the first RRC signaling is configured with oneT. The previous transmission is a 1P transmission on an uplink carrier of Band A and a 2P transmission on an uplink carrier of Band B. A 1P transmission is to be transmitted on an uplink carrier of Band C, and the associated band of Band C is Band A. In this case, all 1Txs on Band B are switched to Band C. In this embodiment, the quantity indicated in the first RRC signaling has a higher priority.

[0331] In some embodiments, the first RRC signaling is configured with twoTs. The previous transmission is a 1P transmission on an uplink carrier of band A and a 2P transmission on an uplink carrier of band B. A 1P transmission is to be transmitted on an uplink carrier of band C, and the associated band of band C is band A. In this case, both 2Tx on band B are switched to band C. In this embodiment, the quantity indicated by the first RRC signaling has a higher priority.

[0332] In some embodiments, the first RRC signaling is configured with twoTs. The previous transmission is a 1P transmission on an uplink carrier of band A and a 2P transmission on an uplink carrier of band B. A 1P transmission is to be transmitted on an uplink carrier of band C, and the associated band of band C is band B. In this case, all 1Txs on band A are switched to band C. In this embodiment, the quantity indicated by the first RRC signaling has a low priority.

[0333] In some embodiments, the first RRC signaling is configured with twoT, and the previous transmission is a 1P transmission on an uplink carrier of band A and a 2P transmission on an uplink carrier of band B. A 2P transmission is to be transmitted on an uplink carrier of band C, and the related band of band C is band B. In this case, the 1Tx on band A and the 1Tx on band B are switched to band C. In this embodiment, the quantity indicated by the first RRC signaling has a higher priority.

[0334] In some embodiments, the first RRC signaling is configured with oneT. The previous transmission was an 1P transmission on an uplink carrier of bands A, B, and C. The next 1P transmission is to be transmitted on an uplink carrier of band D, and the related band of band D is band B. In this case, the 1Tx of bands A and C is switched to band D. In this embodiment, the quantity indicated in the first RRC signaling has a higher priority.

[0335] In some embodiments, the first RRC signaling is configured with twoTs. The previous transmission is a 1P transmission on an uplink carrier of bands A, B, and C. The next 1P transmission is to be transmitted on an uplink carrier of band D, and the related band of band D is band B. In this case, the two Txs on bands A and C are switched to band D. In this embodiment, the number indicated in the first RRC signaling has a higher priority.

[0336] In some embodiments, the first RRC signaling is configured with twoT, and the previous transmission is a 1P transmission on an uplink carrier of bands A, B, and C. The next 1P transmission is to be transmitted on an uplink carrier of band D, and the related bands of band D are bands A and B. In this case, the 1Tx on band C is switched to band D. In this embodiment, the quantity indicated by the first RRC signaling has a low priority.

[0337] It should be noted that, in some embodiments, the first RRC signaling is configured with oneT, which indicates switching of one transmission link (1Tx) or is alternatively described as switching of one antenna, the first RRC signaling is configured with twoT, which indicates switching of 2Tx or is alternatively described as switching of two antennas, the first RRC signaling is configured with threeT, which indicates switching of 3Tx or is alternatively described as switching of three antennas, and so on.

[0338] Method 3:

[0339] When the x-port and y-port transmissions in the previous transmission involve two or more bands, the TX to be transmitted by x-port comes from the band corresponding to the x-port transmission in the previous transmission.

[0340] In some embodiments, if oneT is indicated by the first RRC signaling, when the previous transmission includes a 1P transmission on an uplink carrier of band A and a 2P transmission on an uplink carrier of band B, the Tx corresponding to the 1P transmission to be transmitted to an uplink carrier of band C is switched from band A.

[0341] In some embodiments, if twoT is indicated through the first RRC signaling, when the previous transmission includes a 1P transmission on an uplink carrier of band A and a 2P transmission on an uplink carrier of band B, the Tx corresponding to the 2P transmission to be transmitted to an uplink carrier of band C is switched from band B.

[0342] Method 4:

[0343] In the event of ambiguity, priority is given to switching between low-frequency or high-frequency Tx.

[0344] In some embodiments, when both the 1T on band A and band B may switch to band C, since band A has a lower frequency, the Tx on band A is preferentially switched to band C.

[0345] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided that includes units or modules for implementing each step performed by a network device in any of the above methods.

[0346] 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.

[0347] 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.

[0348] Figure 5A is a schematic diagram of the structure of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 5A, the terminal 5100 may include: at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the processing module is used to determine whether a first uplink transmission is to be performed. In some embodiments, the processing module is used to determine the switching path of the uplink antenna of the terminal, and switch the uplink antenna of the terminal to the first frequency band according to the switching path. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, but not limited to this) executed by the terminal in any of the above methods, which will not be repeated here. Optionally, the processing module is used to execute at least one of the other steps (for example, step S2103, step S2104, but not limited to this) executed by the terminal in any of the above methods, which will not be repeated here.

[0349] Figure 5B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in Figure 5B, the network device 5200 may include: at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the above-mentioned transceiver module is used to send the first information to the terminal. The above-mentioned processing module is used to determine the switching path of the uplink antenna of the terminal, and does not expect the terminal to perform uplink transmission within the first time. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2102, but not limited to this) executed by the network device in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps (for example, step S2105, step S2106, but not limited to this) executed by the network device in any of the above methods, which will not be repeated here.

[0350] 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.

[0351] In some embodiments, the processing module can be a single module or include multiple submodules. Optionally, the multiple submodules each execute all or part of the steps required to be executed by the processing module. Optionally, the processing module and the processor can be interchangeable.

[0352] Figure 6A is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a network device (e.g., an access network device), a terminal (e.g., a user equipment), 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. Communication device 6100 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.

[0353] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. Processor 6101 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 the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 6100 is used to perform any of the above methods.

[0354] In some embodiments, the communication device 6100 further includes one or more memories 6102 for storing instructions. Optionally, all or part of the memories 6102 may be located outside the communication device 6100.

[0355] In some embodiments, the communication device 6100 further includes one or more transceivers 6103. When the communication device 6100 includes one or more transceivers 6103, the transceiver 6103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S2102, but not limited thereto), and the processor 6101 performs at least one of the other steps (for example, steps S2103 to S2106, but not limited thereto).

[0356] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0357] In some embodiments, the communication device 6100 may include one or more interface circuits. Optionally, the interface circuits are connected to the memory 6102 and may be used to receive signals from the memory 6102 or other devices, or to send signals to the memory 6102 or other devices. For example, the interface circuits may read instructions stored in the memory 6102 and send the instructions to the processor 6101.

[0358] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited to FIG6A. The communication device may be an independent device or may be part of a larger device. For example, the communication 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 and 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.

[0359] 6B is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6B , but the present disclosure is not limited thereto.

[0360] The chip 6200 includes one or more processors 6201 , and the chip 6200 is configured to execute any of the above methods.

[0361] In some embodiments, the chip 6200 further includes one or more interface circuits 6202. Optionally, the interface circuit 6202 is connected to the memory 6203. The interface circuit 6202 can be used to receive signals from the memory 6203 or other devices, and can be used to send signals to the memory 6203 or other devices. For example, the interface circuit 6202 can read instructions stored in the memory 6203 and send the instructions to the processor 6201.

[0362] In some embodiments, the interface circuit 6202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S2102, but not limited to this), and the processor 6201 executes at least one of the other steps (for example, step S2103 to step S2106, but not limited to this).

[0363] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0364] In some embodiments, the chip 6200 further includes one or more memories 6203 for storing instructions. Alternatively, all or part of the memories 6203 may be located outside the chip 6200.

[0365] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 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.

[0366] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0367] 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. An uplink switching method, characterized in that: Executed by a terminal, the method includes: Determining to perform a first uplink transmission, wherein the first uplink transmission includes transmitting on a first frequency band; Determining a switching path for an uplink antenna of the terminal; The uplink antenna of the terminal is switched to the first frequency band according to the switching path to perform the first uplink transmission.

2. The method according to claim 1, characterized in that The method further comprises: Sending first capability information to a network device, where the first capability information is used to indicate that the terminal supports M uplink antennas, and / or the first capability information is used to indicate that the terminal supports switching between M uplink antennas, wherein M is an integer greater than or equal to 3.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Receive first information sent by a network device, where the first information is used to schedule the terminal to perform the first uplink transmission.

4. The method according to any one of claims 1 to 3, characterized in that: The determining a switching path of the uplink antenna of the terminal includes: Determine a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band; The switching path is determined according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

5. The method according to claim 4, characterized in that The switching path includes switching all uplink antennas on frequency bands that are not related to the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band.

6. The method according to claim 4, characterized in that The method further comprises: receiving second information sent by the network device, where the second information is used to indicate the number of antenna switches; The determining the switching path according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission includes: The switching path is determined according to the second information and a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

7. The method according to claim 6, characterized in that The switching path includes switching uplink antennas on a frequency band that is not related to the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band according to the number indicated by the second information.

8. The method according to any one of claims 1 to 3, characterized in that: The first uplink transmission includes transmission of x ports on the first frequency band, where x is an integer greater than or equal to 1; The determining a switching path of the uplink antenna of the terminal includes: Determine a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission of x ports on a second frequency band; The switching path is determined according to the second frequency band.

9. The method according to any one of claims 1 to 3, characterized in that: The determining a switching path of the uplink antenna of the terminal includes: Determine a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band; The switching path is determined according to a frequency point of at least one frequency band of the second uplink transmission.

10. An uplink switching method, characterized in that: Executed by a network device, the method includes: Sending first information to a terminal, where the first information is used to schedule the terminal to perform a first uplink transmission, where the first uplink transmission includes transmission on a first frequency band; Determining a switching path for an uplink antenna of the terminal; The terminal is not expected to perform uplink transmission within a first time, and the first time is determined based on the switching path.

11. The method according to claim 10, characterized in that The method further comprises: Receive first capability information sent by the terminal, where the first capability information is used to indicate that the terminal supports M uplink antennas, and / or the first capability information is used to indicate that the terminal supports switching between M uplink antennas, wherein M is an integer greater than or equal to 3.

12. The method according to claim 10 or 11, characterized in that: The determining a switching path of the uplink antenna of the terminal includes: Determine a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band; The switching path is determined according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

13. The method according to claim 12, characterized in that The switching path includes switching all uplink antennas on frequency bands that are not related to the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band.

14. The method according to claim 12, characterized in that The method further comprises: Sending second information to the terminal, where the second information is used to indicate the number of antenna switches; The determining the switching path according to a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission includes: The switching path is determined according to the second information and a non-related frequency band of the first frequency band in at least one frequency band of the second uplink transmission.

15. The method according to claim 14, characterized in that The switching path includes switching uplink antennas on a frequency band that is not related to the first frequency band in at least one frequency band of the second uplink transmission to the first frequency band according to the number indicated by the second information.

16. The method according to claim 10 or 11, characterized in that The first uplink transmission includes transmission of x ports on the first frequency band, where x is an integer greater than or equal to 1; The determining a switching path of the uplink antenna of the terminal includes: Determine a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission of x ports on a second frequency band; The switching path is determined according to the second frequency band.

17. The method according to claim 10 or 11, characterized in that: The determining a switching path of the uplink antenna of the terminal includes: Determine a second uplink transmission performed by the terminal before the first uplink transmission, where the second uplink transmission includes transmission on at least one frequency band; The switching path is determined according to a frequency point of at least one frequency band of the second uplink transmission.

18. A terminal, characterized in that: The terminal comprises: A processing module, configured to determine that a first uplink transmission is to be performed, wherein the first uplink transmission comprises transmitting on a first frequency band; The processing module is further configured to determine a switching path of the uplink antenna of the terminal, and switch the uplink antenna of the terminal to the first frequency band according to the switching path to perform the first uplink transmission.

19. A network device, characterized in that: The network equipment includes: a transceiver module, configured to send first information to a terminal, wherein the first information is used to schedule the terminal to perform a first uplink transmission, wherein the first uplink transmission includes transmission on a first frequency band; The processing module is configured to determine a switching path for the uplink antenna of the terminal, and does not expect the terminal to perform uplink transmission within a first time, wherein the first time is determined based on the switching path.

20. A terminal, characterized in that: include: one or more processors; The terminal is used to execute the uplink switching method according to any one of claims 1-9.

21. A network device, characterized in that: include: one or more processors; Wherein, the network device is used to execute the uplink switching method described in any one of claims 10-17.

22. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal is configured to implement the uplink switching method described in any one of claims 1-9, and the network device is configured to implement the uplink switching method described in any one of claims 10-17.

23. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the uplink switching method as described in any one of claims 1 to 9, or executes the uplink switching method as described in any one of claims 10 to 17.

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