Method for transmitting capability information, terminal, network device, communication system, and medium

Abstract

The present disclosure provides a method for transmitting capability information, a terminal, a network device, a communication system, and a medium. The method comprises: a terminal sending capability information to a network device, the capability information being used for indicating whether the terminal has a first capability, and the first capability indicating that the terminal, during uplink switching, supports simultaneous transmission on two or more transmission links. In the method of the present disclosure, the terminal sends the capability information to the network device, so as to report that the capability of simultaneously transmitting on two or more transmission links is supported during uplink switching, thus a terminal having higher uplink switching capability can perform reasonable uplink switching, which is beneficial for further enhancing uplink transmission performance.

Description

Method, terminal, network equipment, communication system and medium for transmitting capability information Technical Field

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

[0002] The Super Uplink (SUB) feature of 5G New Radio (NR) is an uplink enhancement technology that combines high and low frequencies. It achieves selective transmission based on channel conditions across different uplink frequency bands through dynamic uplink switching (or uplink Tx switching) by terminals, thereby improving uplink transmission performance and enhancing uplink coverage and speed.

[0003] Summary of the Invention

[0004] The present disclosure provides a method, terminal, network equipment, communication system and medium for transmitting capability information.

[0005] In a first aspect, an embodiment of the present disclosure provides a method for sending capability information, the method comprising:

[0006] Capability information is sent to a network device, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0007] In a second aspect, the present disclosure provides a method for receiving capability information, the method comprising:

[0008] Capability information sent by a terminal is received, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0009] In a third aspect, the present disclosure provides a terminal, including:

[0010] The transceiver module is used to send capability information to the network device, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0011] In a fourth aspect, the present disclosure provides a network device, including:

[0012] The transceiver module is used to receive capability information sent by the terminal, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports a first capability of simultaneously transmitting on more than two transmission links in uplink switching.

[0013] In a fifth aspect, the present disclosure provides a terminal, including:

[0014] one or more processors;

[0015] The terminal is used to execute the method described in the first aspect.

[0016] In a sixth aspect, the present disclosure provides a network device, including:

[0017] one or more processors;

[0018] The terminal is used to execute the method described in the second aspect.

[0019] In a seventh aspect, the present disclosure provides a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the method described in the first aspect, and the network device is configured to implement the method described in the second aspect.

[0020] In an eighth aspect, the present disclosure provides a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the method described in the first aspect or the second aspect.

[0021] In the method disclosed herein, the terminal sends capability information to the network device to report the ability to support simultaneous transmission on more than two transmission links during the uplink switching process, so that terminals with higher uplink switching capabilities can perform reasonable uplink switching, which is conducive to further enhancing the uplink transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] FIG1a is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0024] Figures 1b to 1c are schematic diagrams of uplink switching according to an example embodiment of the present disclosure;

[0025] FIG2 is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0026] 3a-3b are exemplary flowcharts of a method performed by a terminal according to an embodiment of the present disclosure;

[0027] 4a-4b are exemplary flowcharts of a method performed by a network device according to an embodiment of the present disclosure;

[0028] FIG5a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0029] FIG5b is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

[0030] FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0031] FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] The present disclosure provides a method, terminal, network device, communication system and medium for transmitting capability information.

[0033] In a first aspect, the present disclosure provides a method for sending capability information, the method comprising:

[0034] Capability information is sent to a network device, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0035] In the above embodiment, the terminal sends capability information to the network device to report the ability to support simultaneous transmission on more than two transmission links during the uplink switching process, so that terminals with higher uplink switching capabilities can perform reasonable uplink switching, which is conducive to further enhancing the uplink transmission performance.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the first capability further indicates that the terminal supports more than two antenna ports in uplink switching.

[0037] In the above embodiment, the terminal can support the uplink switching capability of more antenna ports, thereby further enhancing the uplink transmission performance in uplink switching.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the capability information includes at least one of the following:

[0039] a switching period for uplink switching of the terminal having the first capability;

[0040] a handover option for the terminal having the first capability to perform uplink handover;

[0041] The switching option is used to indicate the number of frequency bands supported by the terminal before uplink switching and / or after uplink switching.

[0042] In the above embodiment, a terminal supporting higher uplink switching capability can report corresponding capability information, such as the switching period required for uplink switching when supporting the first capability and the supported switching options, so that the terminal can perform uplink switching in the scenario corresponding to the corresponding capability information to improve the uplink transmission performance in the corresponding scenario.

[0043] With reference to some embodiments of the first aspect, in some embodiments, the capability information includes:

[0044] The terminal having the first capability, the switching period and / or the switching option corresponding to uplink switching for each frequency band pair in different frequency band combinations;

[0045] The frequency band pair includes: a first frequency band of the transmission link before the uplink switching and a second frequency band of the transmission link after the uplink switching.

[0046] In the above embodiment, a terminal supporting a higher uplink switching capability may report capability information under different frequency band combinations, so as to improve uplink performance by utilizing uplink switching under different frequency band combinations.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the frequency band combination includes a frequency band combination based on carrier aggregation CA or dual connectivity DC.

[0048] In the above embodiment, it is illustrated that the frequency band combination may be a frequency band combination in a CA or DC scenario, so as to achieve the effect of more frequency band coordination.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the switching period is one of a plurality of candidate period values ​​pre-configured by the network device or defined by a protocol.

[0050] In the above embodiment, multiple candidate period values ​​may be set by configuration or protocol definition, and the terminal may indicate one of them as the corresponding switching period when reporting capability information.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the number of the frequency bands is at least two.

[0052] In the above embodiment, the terminal may support uplink switching on two or more frequency bands to improve uplink transmission performance under more frequency band combinations.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the switching option includes at least one of the following:

[0054] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission;

[0055] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two frequency bands;

[0056] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two or more frequency bands;

[0057] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two frequency bands;

[0058] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two or more frequency bands;

[0059] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission of two frequency bands and simultaneous transmission of more than two frequency bands;

[0060] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission, simultaneous transmission of two frequency bands, and simultaneous transmission of more than two frequency bands.

[0061] In the above embodiment, multiple handover options supported by a terminal with high uplink handover capability are illustrated, based on which the terminal can perform uplink handover on more possible handover options.

[0062] In combination with some embodiments of the first aspect, in some embodiments, the capability information is further used to indicate that the terminal supports a second capability of less than or equal to two transmission links transmitting simultaneously.

[0063] In the above embodiment, the terminal with high uplink switching capability may also report other supported uplink switching capabilities.

[0064] In a second aspect, the present disclosure provides a method for receiving capability information, the method comprising:

[0065] Capability information sent by a terminal is received, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0066] In the above embodiment, the network device receives the capability information sent by the terminal to obtain the capability of supporting simultaneous transmission of more than two transmission links during the uplink switching process, so that terminals with higher uplink switching capabilities can perform reasonable uplink switching, which is conducive to further enhancing the uplink transmission performance.

[0067] In combination with some embodiments of the second aspect, in some embodiments, the first capability further indicates that the terminal supports more than two antenna ports in uplink switching.

[0068] In conjunction with some embodiments of the second aspect, in some embodiments, the capability information includes at least one of the following:

[0069] a switching period for uplink switching of the terminal having the first capability;

[0070] a handover option for the terminal having the first capability to perform uplink handover;

[0071] The switching option is used to indicate the number of frequency bands supported by the terminal before uplink switching and / or after uplink switching.

[0072] With reference to some embodiments of the second aspect, in some embodiments, the capability information includes:

[0073] The terminal having the first capability, the switching period and / or the switching option corresponding to uplink switching for each frequency band pair in different frequency band combinations;

[0074] The frequency band pair includes: a first frequency band of the transmission link before the uplink switching and a second frequency band of the transmission link after the uplink switching.

[0075] In combination with some embodiments of the second aspect, in some embodiments, the frequency band combination includes a frequency band combination based on carrier aggregation CA or dual connectivity DC.

[0076] In combination with some embodiments of the second aspect, in some embodiments, the switching period is one of a plurality of candidate period values ​​pre-configured by the network device or defined by a protocol.

[0077] In combination with some embodiments of the second aspect, in some embodiments, the number of frequency bands is at least two.

[0078] In conjunction with some embodiments of the second aspect, in some embodiments, the switching option includes at least one of the following:

[0079] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission;

[0080] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two frequency bands;

[0081] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two or more frequency bands;

[0082] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two frequency bands;

[0083] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two or more frequency bands;

[0084] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission of two frequency bands and simultaneous transmission of more than two frequency bands;

[0085] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission, simultaneous transmission of two frequency bands, and simultaneous transmission of more than two frequency bands.

[0086] In combination with some embodiments of the second aspect, in some embodiments, the capability information is also used to indicate whether the terminal has a second capability, and the second capability indicates that the terminal can transmit simultaneously on less than or equal to two transmission links in uplink switching.

[0087] In a third aspect, the present disclosure provides a terminal, including:

[0088] The transceiver module is used to send capability information to the network device, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0089] In a fourth aspect, the present disclosure provides a network device, including:

[0090] The transceiver module is used to receive capability information sent by the terminal, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0091] In a fifth aspect, the present disclosure provides a terminal, including:

[0092] one or more processors;

[0093] The terminal is used to execute the method described in the first aspect.

[0094] In a sixth aspect, the present disclosure provides a network device, including:

[0095] one or more processors;

[0096] The terminal is used to execute the method described in the second aspect.

[0097] In a seventh aspect, the present disclosure provides a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the method described in the first aspect, and the network device is configured to implement the method described in the second aspect.

[0098] In an eighth aspect, the present disclosure provides a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the method described in the first aspect or the second aspect.

[0099] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0100] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0101] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0108] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0117] 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.

[0118] 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.

[0119] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0120] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0121] 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.

[0122] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0123] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 and a network device 102 .

[0124] 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.

[0125] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0126] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0127] 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.

[0128] 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.

[0129] In some embodiments, a core network device may be a single device comprising one or more network elements, or may be a plurality of devices or a group of devices, each comprising all or part of one or more network elements. A network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0130] 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 provided by 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 provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0131] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. 1 a , or a partial body thereof, but are not limited thereto.

[0132] The entities shown in Figure 1a are examples. The communication system may include all or part of the entities in Figure 1a, or may include other entities outside Figure 1a. The number and form of the entities are arbitrary. The connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, which may be direct or indirect, and may be wired or wireless.

[0133] 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).

[0134] In the disclosed embodiments, the terminal utilizes the super uplink function to switch to a low-frequency carrier to improve uplink coverage when the high-frequency carrier has insufficient uplink coverage; or to switch to a high-frequency carrier when uplink coverage is sufficient, leveraging the high-frequency carrier's large bandwidth and MIMO technology to achieve high-speed transmission. Super uplink includes three scenarios: carrier aggregation (CA), Evolved Universal Terrestrial Radio Access Network (E-UTRAN) New Radio Dual Connectivity (EN-DC), and Supplementary Uplink (SUL).

[0135] In the embodiment of the present disclosure, in the R16 stage, the terminal supports switching between a single antenna port on one frequency band and a dual antenna port on another frequency band, that is, the uplink switching only supports switching between two frequency bands, where the terminal corresponding to the single antenna port supports one transmission link working simultaneously, and the terminal corresponding to the dual (or two) antenna ports supports two transmission links working simultaneously.

[0136] Figure 1b illustrates the uplink switching scenario in R16, which can be based on SUL and UL CA. Referring to Figure 1b, the uplink switching of R16 can be switching between the first case (case 1) and the third case (case 3). For example, terminal 101 switches from case 1 to case 3, transmission link 1 switches from carrier 1 to carrier 2 to send data, and transmission link 2 uses carrier 2 to send data, that is, carrier 2 corresponds to 2T. For another example, terminal 101 switches from case 3 to case 1, that is, transmission link 1 switches from carrier 2 to carrier 1 to send data (1T), and transmission link 2 switches to carrier 2 not sending data (0T). Among them, the frequency band where carrier 1 is located is different from the frequency band where carrier 2 is located.

[0137] It can be understood that 1T+0T in case 1 means that transmit link 1 of terminal 101 transmits data on carrier 1 (Carrier#1) (1T), and transmit link 2 can support carrier 2 (Carrier#2), but in case 1, the UE does not transmit data through transmit link 2 (0T). In case 2, 1T+1T means that transmit link 1 transmits data on carrier 1 (1T), and transmit link 2 transmits data on carrier 2 (1T). In case 3, 0T+2T means that transmit link 1 and transmit link 2 transmit data on carrier 2 (2T), but do not transmit data on carrier 1 (0T).

[0138] In the disclosed embodiment, in the R17 stage, the terminal supports switching between dual antenna ports on two frequency bands.

[0139] Figure 1c illustrates an uplink handover scenario in R17. This uplink handover can be based on both SUL and UL CA. Referring to Figure 1c, an uplink handover scenario in R17 can involve switching between Case 1 and Case 3, between Case 1 and Case 2, or between Case 2 and Case 3. For a description of these handovers, refer to the R16 example section and are not repeated here.

[0140] The above-listed embodiments are based on the fact that the terminal 101 supports two simultaneous transmission links (i.e., 2Tx) or dual antenna ports, and that the terminal 101 supports uplink switching in two frequency bands. However, with the development of wireless communication technology and changes in terminal capabilities, the application scenarios of uplink switching need to be further enhanced.

[0141] In an embodiment of the present disclosure, a method applicable to uplink switching between more antenna ports and uplink switching between more frequency bands is provided.

[0142] FIG2 is an interactive diagram illustrating a method for transmitting capability information according to an embodiment of the present disclosure. As shown in FIG2 , an embodiment of the present disclosure relates to a method for transmitting capability information, the method comprising:

[0143] Step S2101 : Terminal 101 sends capability information to network device 102 .

[0144] In some embodiments, the capability information is used to indicate whether the terminal 101 has the first capability. Optionally, the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0145] In other words, the capability information is used to indicate whether the terminal 101 has the first capability of supporting simultaneous transmission on more than two transmission links in uplink switching.

[0146] In one example, the terminal 101 has a first capability, which may be that the terminal 101 can transmit simultaneously on more than two transmission links before the uplink switching, or that the terminal 101 can transmit simultaneously on more than two transmission links after the uplink switching, or that the terminal 101 can transmit simultaneously on more than two transmission links both before and after the uplink switching.

[0147] Optionally, the terminal 101 may send UE capability information (UE Capability Information) via Radio Resource Control (RRC) signaling.

[0148] In one example, the first capability may be that terminal 101 supports simultaneous transmission on three transmission links (3Tx) during uplink switching. Alternatively, terminal 101 supports the capability of simultaneously transmitting on more than three transmission links. The above examples are merely illustrative of the specific number of transmission links supported, and this disclosure does not impose any specific limitation.

[0149] Optionally, the transmission link may also be referred to as an uplink, a radio frequency link, or an uplink transmission link.

[0150] Optionally, based on the radio frequency architecture of the terminal 101 , the user equipment 101 may include more than two transmission chains.

[0151] In some embodiments, uplink switching of terminal 101 may involve switching the carrier on which the transmit link operates. For example, the transmit link of terminal 101 switches from operating on a first carrier to operating on a second carrier. If the first carrier and the second carrier belong to different frequency bands, the switch is an uplink switch between the two frequency bands. When terminal 101 supports simultaneous transmission of multiple transmit links, the uplink switch may involve switching between multiple frequency bands. In the following embodiments, for ease of description, the frequency band corresponding to the uplink switch refers to the frequency band corresponding to the carrier before and / or after the switch.

[0152] Optionally, when the terminal 101 includes more than two transmission links and can transmit simultaneously on the two or more transmission links, the uplink switching of the terminal 101 may be carrier switching for each transmission link, or carrier switching for some of the transmission links.

[0153] In some embodiments, the first capability further indicates that the terminal 101 supports more than two antenna ports in uplink switching.

[0154] Optionally, the terminal 101 supports more than two antenna ports, that is, it can support simultaneous transmission on more than two transmission links, that is, it supports the first capability.

[0155] Optionally, the number of antenna ports is the same as the number of transmission links supported by the terminal 101 for simultaneous transmission. For example, if the terminal 101 supports simultaneous transmission of three transmission links (3Tx) in uplink switching, the number of antenna ports configured for the terminal 101 may be three.

[0156] In one example, referring to the description of the above embodiment, the terminal 101 supports 3 antenna ports, which may be that the terminal 101 supports 3 antenna ports before the uplink switching, or supports 3 antenna ports after the uplink switching, or supports 3 antenna ports both before and after the uplink switching.

[0157] In some embodiments, the capability information may directly indicate whether the terminal 101 has the first capability, such as indicating whether the terminal 101 has the first capability through a 1-bit value, or may indirectly indicate whether the terminal 101 has the first capability by carrying a handover parameter related to the first capability.

[0158] For example, when the capability information includes the following switching parameter, it indicates that the terminal has the first capability: wherein the switching parameter includes a switching cycle and / or a switching option.

[0159] In some embodiments, the capability information includes at least one of the following:

[0160] a switching period for uplink switching by the terminal 101 having the first capability;

[0161] A handover option for the terminal 101 with the first capability to perform uplink handover.

[0162] Optionally, the switching period may be used to indicate the duration of the uplink switching of the terminal 101, or the duration from the state before the uplink switching to the completion of the uplink switching (ie the state after the uplink switching).

[0163] Optionally, the switching period is one of a plurality of candidate period values ​​pre-configured by the network device or defined by a protocol.

[0164] The multiple candidate cycle values ​​may include: 0 μs, 35 μs, 140 μs, and 210 μs. The terminal 101 may indicate one of them as the switching cycle through capability information.

[0165] In one example, the capability information may include a 3-antenna port switching period indication (uplinkTxSwitchingPeriod3T3T), which indicates the switching period.

[0166] The switching option is used to indicate the number of frequency bands supported by the terminal 101 before uplink switching and / or after uplink switching.

[0167] Optionally, the number of supported frequency bands can be the total number of frequency bands corresponding to each transmission link of terminal 101 before the uplink switching; or the total number of frequency bands corresponding to each transmission link of terminal 101 after the uplink switching; or it can also be the total number of frequency bands corresponding to each transmission link of terminal 101 before and after the uplink switching.

[0168] Optionally, the number of frequency bands is at least two. For example, the terminal 101 may support three antenna ports, that is, it may support simultaneous transmission of three transmission links before or after uplink switching. The three transmission links may involve multiple frequency bands before and after switching, such as two frequency bands, three frequency bands, or four frequency bands, and the terminal 101 may support switching of these multiple frequency bands.

[0169] In one example, the capability information may include a switching option indication of support for 3 antenna ports (uplinkTxSwitching-OptionSupport3T3T), which indicates the switching option.

[0170] In some embodiments, the capability information includes: a switching period and / or a switching option corresponding to uplink switching for each frequency band pair in different frequency band combinations for the terminal 101 having the first capability;

[0171] The frequency band pair includes: a first frequency band of the transmission link before the uplink switching and a second frequency band of the transmission link after the uplink switching.

[0172] Optionally, in combination with the above embodiment, the first frequency band corresponds to the frequency band where the first carrier is located, and the second frequency band corresponds to the frequency band where the second carrier is located.

[0173] Optionally, multiple frequency band combinations may be involved in the uplink switching process. For each transmit link of the terminal 101, it may support switching between different frequency band pairs of different frequency band combinations. In this embodiment, corresponding switching parameters can be configured or defined for each frequency band pair or frequency band combination based on the frequency band pair or frequency band combination. The switching parameters refer to the switching period and / or switching options.

[0174] In one example, the terminal 101 may indicate, through a 3-antenna port switching period indication, the length of the period required for 3-port to 3-port (3Tx-3Tx) switching for each frequency band pair in each frequency band combination when configuring dynamic uplink switching.

[0175] In another example, the terminal 101 may indicate the switching options supported by the 3 antenna ports in each frequency band combination when the 3 antenna ports are dynamically switched, thereby indicating the number of frequency bands supported during simultaneous transmission.

[0176] Optionally, the frequency band combination includes a frequency band combination based on Carrier Aggregation (CA) or Dual Connectivity (DC). For example, the frequency band combination is a frequency band combination under the dual link technology of the multi-access system (Multi-RAT Dual Connectivity, MR-DC), or a frequency band combination of Evolved Universal Terrestrial Radio Access Network and New Radio Dual Connectivity (E-UTRAN New Radio Dual Connectivity, EN-DC).

[0177] In some embodiments, the switching options include at least one of the following:

[0178] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission;

[0179] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two frequency bands;

[0180] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two or more frequency bands;

[0181] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two frequency bands;

[0182] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of more than two frequency bands;

[0183] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission of two frequency bands and simultaneous transmission of more than two frequency bands;

[0184] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission, simultaneous transmission of two frequency bands, and simultaneous transmission of more than two frequency bands.

[0185] For example, in the above embodiment, supporting simultaneous transmission of more than two frequency bands is described by taking supporting simultaneous transmission of three frequency bands (3Tx) as an example.

[0186] In the first example, the capability information of terminal 101 includes switching options supported by three antenna ports, indicating the number of frequency bands supported when the three antenna ports are dynamically switched in each frequency band combination, or the number of frequency bands supported when transmitting simultaneously on three transmission links. For example, the following information may be indicated:

[0187] Option 1: Support single-band transmission (switchedUL);

[0188] Option 2: Supports simultaneous transmission in two frequency bands (dualUL);

[0189] Option 3: Supports single-band transmission and dual-band transmission (both switched UL and dual UL).

[0190] In this example, before and / or after uplink switching, terminal 101 may support one of option 1, option 2, and option 3. Taking option 1 as an example, before uplink switching, terminal 101 may simultaneously transmit on the three transmission links based on the same frequency band; after uplink switching, terminal 101 may simultaneously transmit on the three transmission links based on the same frequency band, wherein the frequency bands before and after the switching may be different.

[0191] In the second example, the capability information of terminal 101 includes switching options supported by three antenna ports, indicating the number of frequency bands supported when the three antenna ports are dynamically switched in each frequency band combination, or the number of frequency bands supported when transmitting simultaneously on three transmission links. For example, the following information may be indicated:

[0192] Option 1: Support single-band transmission (switchedUL);

[0193] Option 2: Supports simultaneous transmission in two frequency bands (dualUL);

[0194] Option 3: Supports single-band transmission and dual-band transmission (both switched UL and dual UL);

[0195] Option 4: Supports simultaneous transmission in more than two frequency bands (triUL);

[0196] Option 5: Supports single-band transmission and simultaneous transmission of more than two bands (both switched UL and triUL);

[0197] Option 6: Supports simultaneous transmission of two or more frequency bands (both dualUL and triUL);

[0198] Option 7: Supports single-band transmission, simultaneous transmission of two bands, and simultaneous transmission of more than two bands (switchedUL, dualUL, and triUL).

[0199] In this example, it is assumed that terminal 101 supports three antenna ports, that is, terminal 101 can simultaneously support three transmission links for simultaneous transmission. In the above example:

[0200] Option 1 indicates that terminal 101 can only transmit on one frequency band before or after the uplink switch. For example, before the switch, terminal 101's three transmit links meet 3T+0T, meaning all three transmit links transmit on the first frequency band (3T); switching to 0T+3T means all three transmit links transmit on the second frequency band. Alternatively, the switch may be from 0T+3T to 3T+0T.

[0201] Option 2 indicates that terminal 101 can transmit on two frequency bands simultaneously before or after an uplink handover. For example, if the switch is from 2T+1T to 1T+2T, then before the handover, two of terminal 101's three transmit links transmit on the first frequency band (2T) while the other transmit link transmits on the second frequency band (1T). After the handover, one of terminal 101's three transmit links transmits on the first frequency band (1T) while the other two transmit links transmit on the second frequency band (2T). Alternatively, the switch from 1T+2T to 2T+1T can be reversed.

[0202] Option 3 supports both Option 1 and Option 2.

[0203] Option 4 indicates that terminal 101 can transmit simultaneously on three frequency bands before or after uplink switching. For example, switching from 1T+1T+1T to 2T+1T+0T means that before the switching, the three transmit links of terminal 101 transmit simultaneously on the first frequency band, the second frequency band, and the third frequency band (1T+1T+1T). After the switching, two transmit links of terminal 101 transmit on the first frequency band (2T) while the other transmit link transmits on the second frequency band (1T). Alternatively, it can be one of the following switching scenarios: switching from 1T+1T+1T to 0T+2T+1T, switching from 1T+1T+1T to 0T+1T+2T, switching from 1T+1T+1T to 3T+0T+0T, switching from 1T+1T+1T to 0T+3T+0T, switching from 1T+1T+1T to 0T+0T+3T, or the reverse switching process of the above examples.

[0204] Option 5 indicates that, in addition to the scenario exemplified in Option 4, it also includes a switching scenario in which transmission can only be performed on one frequency band before or after switching.

[0205] In some embodiments, the capability information is further used to indicate whether the terminal has a second capability, where the second capability indicates that the terminal can transmit simultaneously on less than or equal to two transmission links in uplink switching.

[0206] Optionally, the second capability may be an uplink switching capability involved in R16 and / or R17.

[0207] Optionally, the capability information includes uplink switching capability in R16 and R17, and capability information of the terminal 101 supporting the first capability to perform uplink switching.

[0208] In one example, capability information includes:

[0209] uplinkTxSwitchingPeriod3T3T;

[0210] uplinkTxSwitching-OptionSupport3T3T;

[0211] In this example, the capability information also includes at least one of the following:

[0212] uplinkTxSwitchingPeriod-r16;

[0213] uplinkTxSwitching-OptionSupport-r16;

[0214] uplinkTxSwitchingPeriod2T2T-r17;

[0215] uplinkTxSwitching-OptionSupport2T2T-r17.

[0216] In some embodiments, network device 102 receives the capability information.

[0217] Step S2102: Terminal 101 performs uplink switching according to its capability.

[0218] In some embodiments, the terminal 101 can perform 3-antenna port to 3-antenna port (3Tx-3Tx) uplink switching and can implement multi-band switching to further enhance the application scenarios of uplink switching and further improve the uplink transmission performance of the terminal 101.

[0219] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0220] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0221] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0222] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0223] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0224] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0225] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0226] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0227] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0228] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0229] The communication method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2102.

[0230] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0231] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0232] FIG3a is a schematic diagram of a method for sending capability information according to an embodiment of the present disclosure. As shown in FIG3a, an embodiment of the present disclosure relates to a method for sending capability information, the method comprising:

[0233] Step S3101: Terminal 101 sends capability information.

[0234] In some embodiments, the implementation of step S3101 can refer to the relevant implementation of step S2101 and will not be repeated here.

[0235] In some embodiments, the terminal 101 may send capability information to the network device 102 or other entities.

[0236] Step S3102: Terminal 101 performs uplink switching according to its capability.

[0237] In some embodiments, the implementation of step S3102 can refer to the relevant implementation of step S2102 and will not be repeated here.

[0238] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 a .

[0239] FIG3b is a schematic diagram of a method for sending capability information according to an embodiment of the present disclosure. As shown in FIG3b, an embodiment of the present disclosure relates to a method for sending capability information, the method comprising:

[0240] Step S3201 : Terminal 101 sends capability information to network device 102 .

[0241] In some embodiments, the implementation of step S3201 can refer to the relevant implementations of steps S2101 and S3101, and will not be repeated here.

[0242] In some embodiments, the capability information is used to indicate whether the terminal has a first capability, where the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0243] In some embodiments, the first capability further indicates that the terminal supports more than two antenna ports in uplink switching.

[0244] In some embodiments, the capability information includes at least one of the following:

[0245] a switching period for uplink switching of a terminal with the first capability;

[0246] a handover option for a terminal with a first capability to perform uplink handover;

[0247] The switching option is used to indicate the number of frequency bands supported by the terminal before uplink switching and / or after uplink switching.

[0248] In some embodiments, capability information includes:

[0249] A terminal with a first capability, performing a switching cycle and / or a switching option corresponding to uplink switching for each frequency band pair in different frequency band combinations;

[0250] The frequency band pair includes: a first frequency band of the transmission link before the uplink switching and a second frequency band of the transmission link after the uplink switching.

[0251] Optionally, the frequency band combination includes a frequency band combination based on carrier aggregation CA or dual connectivity DC.

[0252] In some embodiments, the switching period is one of a plurality of candidate period values ​​preconfigured by the network device or defined by a protocol.

[0253] In some embodiments, the number of frequency bands is at least two.

[0254] In some embodiments, the switching options include at least one of the following:

[0255] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission;

[0256] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two frequency bands;

[0257] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two or more frequency bands;

[0258] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two frequency bands;

[0259] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of more than two frequency bands;

[0260] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission of two frequency bands and simultaneous transmission of more than two frequency bands;

[0261] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission, simultaneous transmission of two frequency bands, and simultaneous transmission of more than two frequency bands.

[0262] In some embodiments, the capability information is further used to indicate whether the terminal has a second capability, where the second capability indicates that the terminal can transmit simultaneously on less than or equal to two transmission links in uplink switching.

[0263] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0264] FIG4a is a schematic diagram of a method for receiving capability information according to an embodiment of the present disclosure. As shown in FIG4a, an embodiment of the present disclosure relates to a method for receiving capability information, the method comprising:

[0265] Step S4101: The network device 102 obtains capability information.

[0266] In some embodiments, the implementation of step S4101 can refer to the relevant implementation of step S2101 and will not be repeated here.

[0267] In some embodiments, the network device 102 may obtain capability information from the terminal 101 or other entities.

[0268] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0269] FIG4b is a schematic diagram of a method for receiving capability information according to an embodiment of the present disclosure. As shown in FIG4b, an embodiment of the present disclosure relates to a method for receiving capability information, the method comprising:

[0270] Step S4201 : The network device 102 receives capability information sent by the terminal 101 .

[0271] In some embodiments, the implementation of step S4201 can refer to the relevant implementations of steps S2101 and S4101, and will not be repeated here.

[0272] In some embodiments, the capability information is used to indicate whether the terminal has a first capability, where the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

[0273] In some embodiments, the first capability further indicates that the terminal supports more than two antenna ports in uplink switching.

[0274] In some embodiments, the capability information includes at least one of the following:

[0275] a switching period for uplink switching of a terminal with the first capability;

[0276] a handover option for a terminal with a first capability to perform uplink handover;

[0277] The switching option is used to indicate the number of frequency bands supported by the terminal before uplink switching and / or after uplink switching.

[0278] In some embodiments, capability information includes:

[0279] A terminal with a first capability, performing a switching cycle and / or a switching option corresponding to uplink switching for each frequency band pair in different frequency band combinations;

[0280] The frequency band pair includes: a first frequency band of the transmission link before the uplink switching and a second frequency band of the transmission link after the uplink switching.

[0281] Optionally, the frequency band combination includes a frequency band combination based on carrier aggregation CA or dual connectivity DC.

[0282] In some embodiments, the switching period is one of a plurality of candidate period values ​​pre-configured by the network device or defined by a protocol.

[0283] In some embodiments, the number of frequency bands is at least two.

[0284] In some embodiments, the switching options include at least one of the following:

[0285] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission;

[0286] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two frequency bands;

[0287] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two or more frequency bands;

[0288] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two frequency bands;

[0289] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of more than two frequency bands;

[0290] Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission of two frequency bands and simultaneous transmission of more than two frequency bands;

[0291] Before uplink switching and / or after uplink switching, the terminal supports single-band transmission, simultaneous transmission of two frequency bands, and simultaneous transmission of more than two frequency bands.

[0292] In some embodiments, the capability information is further used to indicate that the terminal supports a second capability that is less than or equal to two transmission links transmitting simultaneously.

[0293] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 b .

[0294] To facilitate understanding of the embodiments of the present disclosure, some specific examples are listed below:

[0295] In the uplink dynamic switching function, related examples only support reporting of switching capabilities between two ports, and cannot support switching between three ports. In the embodiments of the present disclosure, a method for reporting the uplink switching capability supported by a terminal is provided. This method can be applied to reporting the capability of a terminal to support switching of three ports, thereby further enhancing the uplink dynamic switching function and making it applicable to switching of more ports.

[0296] Example 1:

[0297] To support dynamic switching of 3 antenna ports, two new capabilities are introduced for the terminal, namely 3 antenna port switching cycle indication and 3 antenna port supported switching options.

[0298] Example 2:

[0299] When indicating the dynamic switching capability of three antenna ports, the terminal needs to indicate the following two new capabilities compared to the dynamic switching capability of two antenna ports:

[0300] UplinkTxSwitchingPeriod3T3T indicates the 3-antenna-port switching period. The indicated values ​​may include: 0us, 35us, 140us, and 210us. Optionally, the 3-antenna-port switching period indicates the length of the period required for 3-port to 3-port (3Tx-3Tx) switching for each pair of UL bands in each band combination when dynamic UL Tx switching is configured.

[0301] 3 antenna ports support switching options.

[0302] In one embodiment, the switching options supported by the three antenna ports represent the options supported when the three antenna ports are dynamically switched in each frequency band combination. The options indicate the number of bands transmitted simultaneously, as follows:

[0303] Options may include:

[0304] Option 1: Single-band transmission (switchedUL);

[0305] Option 2: Simultaneous transmission of two bands (dualUL);

[0306] Option 3: Both options 1 and 2 are supported.

[0307] In another embodiment, when the indicated dynamic switching supports simultaneous transmission on three bands, the following options may also be included when indicating the switching options supported by three antenna ports:

[0308] Option 1: Single-band transmission (switchedUL);

[0309] Option 2: Both bands can be transmitted simultaneously (dualUL);

[0310] Option 3: Both options 1 and 2 are supported;

[0311] Option 4: 3 bands can be transmitted simultaneously (triUL);

[0312] Option 5: Both Option 1 and Option 4 are supported;

[0313] Option 6: Both Option 2 and Option 4 are supported;

[0314] Option 7: Options 1, 2, and 4 are all supported.

[0315] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0316] 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.

[0317] 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.

[0318] Figure 5a is a schematic diagram of the structure of a terminal 101 according to an embodiment of the present disclosure. As shown in Figure 5a, terminal 5100 may include at least one of a transceiver module 5101 and a processing module 5102. In some embodiments, transceiver module 5101 is configured to send capability information to a network device, where the capability information indicates whether the terminal has a second capability, indicating that the terminal is capable of transmitting simultaneously on two or more transmission links during an uplink handover.

[0319] Optionally, the transceiver module 5101 is configured to execute at least one of the communication steps of sending and / or receiving executed by the terminal 101 in any of the above methods. Optionally, the processing module 5102 is configured to execute at least one of the other steps executed by the terminal 101 in any of the above methods.

[0320] Figure 5b is a schematic diagram of the structure of network device 102 according to an embodiment of the present disclosure. As shown in Figure 5b, terminal 5200 may include at least one of a transceiver module 5201 and a processing module 5202. In some embodiments, transceiver module 5201 is configured to receive capability information sent by a terminal, where the capability information indicates whether the terminal has a second capability, wherein the second capability indicates that the terminal is capable of transmitting simultaneously on two or more transmission links during uplink handover.

[0321] Optionally, the transceiver module 5201 is configured to execute at least one of the communication steps of sending and / or receiving performed by the network device 102 in any of the above methods. Optionally, the processing module 5202 is configured to execute at least one of the other steps performed by the network device 102 in any of the above methods.

[0322] 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.

[0323] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0324] 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 core network device, etc.), a terminal (e.g., a terminal), 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.

[0325] 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.

[0326] 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.

[0327] 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, and the processor 6101 performs at least one of the other steps.

[0328] 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.

[0329] In some embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102. The interface circuit 6104 may be configured to receive signals from the memory 6102 or other devices, and may be configured to send signals to the memory 6102 or other devices. For example, the interface circuit 6104 may read instructions stored in the memory 6102 and send the instructions to the processor 6101.

[0330] 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 by FIG. 6a. 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 or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0331] FIG6b 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.

[0332] The chip 6200 includes one or more processors 6201 , and the chip 6200 is configured to execute any of the above methods.

[0333] 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.

[0334] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 6201 performs at least one of the other steps.

[0335] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0336] 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.

[0337] 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.

[0338] 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.

[0339] 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. Industrial Applicability

[0340] In the method disclosed herein, the terminal sends capability information to the network device to report the ability to support simultaneous transmission on more than two transmission links during the uplink switching process, so that terminals with higher uplink switching capabilities can perform reasonable uplink switching, which is conducive to further enhancing the uplink transmission performance.

Claims

1. A method for sending capability information, the method comprising: Capability information is sent to a network device, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

2. The method of claim 1, wherein: The first capability further indicates that the terminal supports more than two antenna ports in uplink switching.

3. The method of claim 1, wherein: The capability information includes at least one of the following: a switching period for uplink switching of the terminal having the first capability; a handover option for the terminal having the first capability to perform uplink handover; The switching option is used to indicate the number of frequency bands supported by the terminal before uplink switching and / or after uplink switching.

4. The method of claim 3, wherein: The capability information includes: The terminal having the first capability, the switching period and / or the switching option corresponding to uplink switching for each frequency band pair in different frequency band combinations; The frequency band pair includes: a first frequency band of the transmission link before the uplink switching and a second frequency band of the transmission link after the uplink switching.

5. The method of claim 4, wherein: The frequency band combination includes a frequency band combination based on carrier aggregation CA or dual connectivity DC.

6. The method of claim 3, wherein: The switching period is one of a plurality of candidate period values ​​preconfigured by the network device or defined by a protocol.

7. The method of claim 3, wherein: The number of the frequency bands is at least two.

8. The method of claim 3, wherein: The switching options include at least one of the following: Before uplink switching and / or after uplink switching, the terminal supports single-band transmission; Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two or more frequency bands; Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of more than two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission of two frequency bands and simultaneous transmission of more than two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports single-band transmission, simultaneous transmission of two bands, and simultaneous transmission of more than two bands.

9. The method according to any one of claims 1 to 8, wherein: The capability information is further used to indicate whether the terminal has a second capability, where the second capability indicates that the terminal can transmit simultaneously on less than or equal to two transmission links in uplink switching.

10. A method for receiving capability information, the method comprising: Capability information sent by a receiving terminal is received, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

11. The method of claim 10, wherein: The first capability further indicates that the terminal supports more than two antenna ports in uplink switching.

12. The method of claim 10, wherein: The capability information includes at least one of the following: a switching period for uplink switching of the terminal having the first capability; a handover option for the terminal having the first capability to perform uplink handover; The switching option is used to indicate the number of frequency bands supported by the terminal before uplink switching and / or after uplink switching.

13. The method of claim 12, wherein: The capability information includes: The terminal having the first capability, the switching period and / or the switching option corresponding to uplink switching for each frequency band pair in different frequency band combinations; The frequency band pair includes: a first frequency band of the transmission link before the uplink switching and a second frequency band of the transmission link after the uplink switching.

14. The method of claim 13, wherein: The frequency band combination includes a frequency band combination based on carrier aggregation CA or dual connectivity DC.

15. The method of claim 12, wherein: The switching period is one of a plurality of candidate period values ​​preconfigured by the network device or defined by a protocol.

16. The method of claim 12, wherein: The number of the frequency bands is at least two.

17. The method of claim 12, wherein: The switching options include at least one of the following: Before uplink switching and / or after uplink switching, the terminal supports single-band transmission; Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission in two or more frequency bands; Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports single-band transmission and simultaneous transmission of more than two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports simultaneous transmission of two frequency bands and simultaneous transmission of more than two frequency bands; Before uplink switching and / or after uplink switching, the terminal supports single-band transmission, simultaneous transmission of two bands, and simultaneous transmission of more than two bands.

18. The method according to any one of claims 10 to 17, wherein: The capability information is further used to indicate whether the terminal has a second capability, where the second capability indicates that the terminal can transmit simultaneously on less than or equal to two transmission links in uplink switching.

19. A terminal, comprising: The transceiver module is used to send capability information to the network device, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

20. A network device comprising: The transceiver module is used to receive capability information sent by a terminal, wherein the capability information is used to indicate whether the terminal has a first capability, and the first capability indicates that the terminal supports simultaneous transmission on more than two transmission links in uplink switching.

21. A terminal, comprising: one or more processors; The terminal is used to execute the method according to any one of claims 1 to 9.

22. A network device comprising: one or more processors; Wherein, the network device is used to execute the method described in any one of claims 10 to 18.

23. A communication system, comprising a terminal and a network device, wherein: The terminal is configured to implement the method according to any one of claims 1 to 9, and the network device is configured to implement the method according to any one of claims 10 to 18.

24. A storage medium storing instructions, which, when executed on a communication device, causes the communication device to execute the method according to any one of claims 1 to 9 or any one of claims 10 to 18.

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