Information transmission method and apparatus, device, chip, storage medium and program product

Abstract

Provided in the embodiments of the present application are an information transmission method and apparatus, a device, a chip, a storage medium and a program product. The method comprises: a terminal device sending first information, the first information being used for indicating an SBFD configuration supported by the terminal device.

Description

Information transmission methods and devices, equipment, chips, storage media and software products Technical Field

[0001] This application relates to the field of mobile communication technology, specifically to an information transmission method and apparatus, device, chip, storage medium, and program product. Background Technology

[0002] With the evolution of communication technologies, considering the flexibility of terminal device communication, terminal devices also need to support Subband Full Duplex (SBFD), which means that data can be sent and received simultaneously on different subbands within the same time unit (e.g., time slot, symbol, subframe, etc.). However, even when terminal devices support SBFD, there is currently no clear method for communication between network devices and terminal devices.

[0003] Summary of the Invention

[0004] This application provides an information transmission method, apparatus, device, chip, storage medium, and program product.

[0005] In a first aspect, the information transmission method provided in the embodiments of this application includes:

[0006] The terminal device sends first information, which is used to indicate the SBFD configuration supported by the terminal device.

[0007] Secondly, the information transmission method provided in the embodiments of this application includes:

[0008] The network device receives first information, which is used to indicate the SBFD configuration supported by the terminal device.

[0009] Thirdly, the information transmission device provided in the embodiments of this application is applied to a terminal device, and the information transmission device includes:

[0010] The first sending unit is configured to send first information, which is used to indicate the SBFD configuration supported by the terminal device.

[0011] Fourthly, the information transmission device provided in this application embodiment is applied to a network device, and the information transmission device includes:

[0012] The second receiving unit is configured to receive first information, which is used to indicate the SBFD configuration supported by the terminal device.

[0013] Fifthly, the terminal device provided in the embodiments of this application includes a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory to execute the information transmission method described above.

[0014] Sixthly, the network device provided in the embodiments of this application includes a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory to perform the information transmission method described above.

[0015] The chip provided in this application embodiment is used to implement the above-described information transmission method.

[0016] Specifically, the chip includes a processor for retrieving and running a computer program from memory, causing a device equipped with the chip to perform the aforementioned information transmission method.

[0017] The computer-readable storage medium provided in this application embodiment is used to store a computer program that causes a computer to execute the above-described information transmission method.

[0018] The computer program product provided in this application includes computer program instructions that cause a computer to execute the above-described information transmission method.

[0019] The computer program provided in this application embodiment, when run on a computer, causes the computer to execute the above-described information transmission method.

[0020] According to the information transmission method of this application embodiment, a terminal device can send first information to a network device, the first information indicating the SBFD configuration supported by the terminal device. Correspondingly, the network device can receive the first information sent by one or more terminal devices and determine the actual SBFD configuration of the terminal device based on the received first information. In this way, the network device can perform reasonable resource scheduling and configuration based on the SBFD configuration reported by the terminal device, achieving more flexible scheduling and lower uplink and downlink latency. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 is a schematic diagram of an application scenario of an embodiment of this application;

[0023] Figure 2A is a schematic diagram of a half-duplex transmission mode provided in an embodiment of this application;

[0024] Figure 2B is a schematic diagram of an SBFD transmission mode provided in an embodiment of this application;

[0025] Figure 2C is a schematic diagram of an SBFD transmission mode provided in an embodiment of this application;

[0026] Figure 3A is a schematic diagram of a time slot structure provided in an embodiment of this application;

[0027] Figure 3B is a schematic diagram of a time slot structure provided in an embodiment of this application;

[0028] Figure 4 is a schematic flowchart of an information transmission method provided in an embodiment of this application;

[0029] Figure 5 is a schematic diagram of an information transmission method provided in an embodiment of this application;

[0030] Figure 6 is a schematic diagram of a time slot structure provided in an embodiment of this application;

[0031] Figure 7 is a schematic diagram of the structure of a channel transmission device 700 provided in an embodiment of this application;

[0032] Figure 8 is a schematic diagram of the structure of a channel transmission device 800 provided in an embodiment of this application;

[0033] Figure 9 is a schematic structural diagram of a communication device provided in an embodiment of this application;

[0034] Figure 10 is a schematic structural diagram of a chip according to an embodiment of this application;

[0035] Figure 11 is a schematic block diagram of a communication system provided in an embodiment of this application. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] Figure 1 is a schematic diagram of an application scenario of an embodiment of this application.

[0038] As shown in Figure 1, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 via an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

[0039] It should be understood that the embodiments of this application are only illustrated by way of example with communication system 100, but the embodiments of this application are not limited thereto. That is to say, the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), 6th generation mobile networks (6G) system, or future communication systems, etc.

[0040] In the communication system 100 shown in Figure 1, network device 120 may be an access network device that communicates with terminal device 110. The access network device can provide communication coverage for a specific geographical area and can communicate with terminal device 110 (e.g., user equipment (UE)) located within that coverage area.

[0041] Network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, a Next Generation Radio Access Network (NG RAN) device, a base station (gNB) in an NR system, a radio controller in a Cloud Radio Access Network (CRAN), or a relay station, access point, vehicle-mounted device, wearable device, hub, switch, bridge, router, or network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0042] Terminal device 110 can be any terminal device, including but not limited to terminal devices that are connected to network device 120 or other terminal devices via wired or wireless connections.

[0043] For example, the terminal device 110 can refer to an Ambient-Internet of Things (A-IoT) device, access terminal, UE, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, IoT device, satellite handheld terminal, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a 5G network, or terminal device in a future evolved network, etc.

[0044] Terminal device 110 can be used for device-to-device (D2D) communication.

[0045] The wireless communication system 100 may further include a core network device 130 that communicates with the network device 120. This core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device for an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions of both SMF and PGW-C. During network evolution, the aforementioned core network device may also be called by other names, or new network entities may be formed by dividing the core network functions; this embodiment does not limit this.

[0046] The various functional units in the communication system 100 can also establish connections and communicate with each other through the next generation (NG) interface.

[0047] For example, terminal device 110 establishes an air interface connection with access network equipment through the NR interface for transmitting user plane data and control plane signaling; terminal device 110 can establish a control plane signaling connection with AMF through NG interface 1 (N1); access network equipment, such as next-generation radio access base station (gNB), can establish a user plane data connection with UPF through NG interface 3 (N3); access network equipment can establish a control plane signaling connection with AMF through NG interface 2 (N2); UPF can establish a control plane signaling connection with SMF through NG interface 4 (N4); UPF can interact with data network for user plane data through NG interface 6 (N6); AMF can establish a control plane signaling connection with SMF through NG interface 11 (N11); SMF can establish a control plane signaling connection with PCF through NG interface 7 (N7).

[0048] Figure 1 exemplarily illustrates a network device 120, a core network device 130, and two terminal devices 110. Optionally, the wireless communication system 100 may include multiple network devices 120, and the coverage area of ​​each network device 120 may include other numbers of terminal devices 110. This application embodiment does not limit this.

[0049] It should be noted that Figure 1 is merely an example illustrating the system to which this application applies. Of course, the method shown in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. It should also be understood that "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a related relationship. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, B can be obtained through C; or it can mean that there is a related relationship between A and B. It should also be understood that "correspondence" mentioned in the embodiments of this application can indicate a direct or indirect correspondence between two things, or an related relationship between two things, or a relationship of instruction and being instructed, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to standard protocols in the field of communication, such as LTE protocol, NR protocol, and related protocols applied to future communication systems, and this application does not limit this.

[0050] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0051] Subband Full Duplex (SBFD): To overcome the problems of weak uplink coverage, large uplink latency, and insufficient uplink capacity caused by limited uplink resource allocation in NR TDD, the 3rd Generation Partnership Project (3GPP) introduced SBFD technology in Release 18. This means that data can be transmitted and received simultaneously on different subbands in the same time unit (e.g., time slot, symbol, subframe, etc.).

[0052] Referring to Figure 2A, in half-duplex transmission mode, subbands within the same time unit in the time domain are used only for uplink or downlink transmission. Referring to Figure 2B, in SBFD transmission mode, on the subbands corresponding to time slots 1 to 3, a portion of the subbands are used for downlink transmission, and the other portion is used for uplink transmission.

[0053] In the standard protocol R18, for TDD time slot configuration, the parameter TDD-UL-DL-config can be used to configure different patterns for the subband corresponding to a time slot as uplink or downlink.

[0054] Currently, SBFD only supports configurations for two different patterns.

[0055] The first pattern configuration refers to the time slot structure diagram shown in Figure 3A. This time slot can be divided into two sub-bands in the frequency domain. One sub-band realizes downlink transmission (DL) and the other realizes uplink transmission (UL), which is the pattern configuration of DU.

[0056] The second pattern configuration is shown in Figure 3B, which is a time slot structure diagram. This time slot is divided into three sub-bands in the frequency domain. The middle sub-band can realize uplink transmission, and the other two sub-bands can realize downlink transmission. This is the pattern configuration of DUD.

[0057] In current 3GPP simulations, the introduction of new uplink subbands into the downlink bandwidth aims to minimize the impact on existing downlink throughput. Simulations have shown that a suitable bandwidth ratio is 8:2 for downlink to uplink. Therefore, taking a 100MHz bandwidth as an example, a suitable subband distribution under a DU configuration is 80MHz downlink and 20MHz uplink. Under a DUD configuration, a suitable subband distribution is 40MHz downlink, 20MHz uplink, and 40MHz downlink.

[0058] Currently, SBFD in Release 18 and Release 19 is mainly used on the network device (e.g., base station) side. Considering the complexity of terminal implementation, terminal devices only need to perform uplink transmission or downlink reception within a time unit. On the network device side, there is still no complete conclusion on how to support subband full-duplex and how to specifically configure the uplink and downlink subbands in SBFD. Currently, there are three possible approaches:

[0059] 1. The protocol specifies a limited number of selectable uplink and downlink bandwidth configurations.

[0060] 2. The protocol only specifies the bandwidth configuration of the uplink / downlink subbands. The base station can freely configure the bandwidth and guard band of the corresponding downlink / uplink subbands.

[0061] 3. Completely free configuration of uplink and downlink sub-bands and guard bands.

[0062] Currently, terminal devices only need to perform uplink transmission or downlink reception within a single time unit. The bandwidth of the terminal device is configured by the network device, which can configure the uplink and downlink bandwidth of the terminal device separately after determining its own SBFD bandwidth. This is feasible for traditional terminal devices.

[0063] With the evolution of communication technology, and considering the flexibility of terminal device communication, terminal devices also need to support SBFD. For example, referring to Figure 2C, in some sub-bands of time slots 1 to 3, the terminal device can perform both uplink and downlink transmissions.

[0064] However, when the terminal device supports SBFD, there is currently no clear method for how the network device and the terminal device should communicate.

[0065] In view of this, embodiments of this application provide an information transmission method in which a terminal device can report its supported SBFD configuration to a network device via first information. Correspondingly, the network device can receive first information sent by one or more terminal devices and determine the actual SBFD configuration of the terminal device based on the received first information. In this way, the network device can perform reasonable resource scheduling and configuration based on the SBFD configuration reported by the terminal device, achieving more flexible scheduling and lower uplink and downlink latency.

[0066] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0067] Figure 4 illustrates an information transmission method provided in an embodiment of this application, which may include:

[0068] S410, the terminal device sends first information, and the network device receives the first information accordingly. The first information indicates the SBFD configuration supported by the terminal device.

[0069] It should be noted that the terminal device sending the first information can be a terminal device that supports SBFD, that is, the terminal device can simultaneously send and receive data on different subbands in a time unit (such as time slot, symbol, subframe, etc.).

[0070] It should also be noted that, due to differences in device capabilities (such as antenna isolation capability, baseband filter or subband filter capability) among different terminal devices, the SBFD configurations supported by different terminal devices may differ.

[0071] In this embodiment, a terminal device can report its supported SBFD configuration to a network device via first information. Correspondingly, the network device can receive first information from one or more terminal devices and determine the actual SBFD configuration of the terminal device based on the received first information. In this way, the network device can perform reasonable resource scheduling and configuration based on the SBFD configuration reported by the terminal device, achieving more flexible scheduling and lower uplink and downlink latency.

[0072] It should be noted that the first information can be carried or transmitted via dedicated signaling. The first information can also be carried or transmitted via Radio Resource Control (RRC) signaling; for example, the first information can be UECapabilityInformation carried in RRC. This application embodiment does not limit the signaling used to carry or transmit the first information.

[0073] In some embodiments, the SBFD configuration supported by the terminal device may include one or more of the following:

[0074] The bandwidth configuration of SBFD supported by the terminal device;

[0075] Subband patterns of SBFD supported by the terminal device.

[0076] Understandably, terminal devices can report the bandwidth configuration of the SBFDs they support. In this embodiment, the bandwidth configuration of the SBFDs supported by the terminal device is denoted as "SBFDchannelbandwidthconfig".

[0077] In some embodiments, the bandwidth configuration of the SBFD supported by the terminal device may include one or more of the following:

[0078] SBFD's maximum bandwidth;

[0079] Maximum bandwidth of the subband used for uplink transmission;

[0080] Maximum bandwidth of the subband used for downlink transmission;

[0081] The minimum bandwidth of the first guard band; the first guard band is the guard band corresponding to the sub-band used for uplink transmission;

[0082] The minimum bandwidth of the second guard band; the second guard band is the guard band corresponding to the sub-band used for downlink transmission.

[0083] Understandably, the terminal device can report the maximum bandwidth of the subband used for uplink transmission in the SBFD (which can be referred to as the uplink subband in this embodiment of the application), and / or the maximum bandwidth of the subband used for downlink transmission in the SBFD (which can be referred to as the downlink subband in this embodiment of the application).

[0084] For example, the terminal device may report the maximum number of configurable subcarriers in the uplink subband, or the maximum number of resource blocks (RBs), or the maximum number of physical resource blocks (PRBs), etc., and the embodiments of this application do not limit this.

[0085] For example, the terminal device may report the maximum number of configurable subcarriers in the downlink subband, or the maximum number of RBs, or the maximum number of PRBs, etc., and this application embodiment does not limit this.

[0086] It should be noted that the maximum bandwidth of the reported uplink / downlink subband here can refer to the maximum configurable bandwidth of the uplink / downlink subband supported by the terminal device, or in other words, the maximum configurable bandwidth of the uplink / downlink subband supported by the terminal device. Understandably, when the network device configures the uplink / downlink subband for the terminal device in real time, it can configure a bandwidth smaller than this maximum bandwidth to facilitate more flexible resource scheduling by the network device.

[0087] Additionally, the terminal device can also report the minimum bandwidth of the guard band corresponding to the uplink subband (i.e., the first guard band mentioned above), and / or the minimum bandwidth of the guard band corresponding to the downlink subband (i.e., the second guard band mentioned above). For example, the terminal device can report the minimum number of subcarriers, or the minimum number of redundancies (RBs), or the minimum number of redundancies (PRBs), etc., of the first guard band and / or the second guard band.

[0088] It should be noted that the guard band corresponding to the uplink sub-band (i.e., the first guard band) can be distributed on both sides of the uplink sub-band to protect the data transmitted in the uplink sub-band from interference from downlink transmission. The guard band corresponding to the downlink sub-band (i.e., the second guard band) can be distributed on both sides of the downlink sub-band to protect the data transmitted in the downlink sub-band from interference from uplink transmission.

[0089] Understandably, the minimum bandwidth of the first protection band and / or the minimum bandwidth of the second protection band can be determined based on the total interference cancellation capabilities of the terminal equipment's antenna isolation, RF, and baseband. To ensure that interference in the uplink subband and / or downlink subband is within acceptable limits, the terminal equipment can report the minimum bandwidth required for the protection band corresponding to the uplink subband (i.e., the first protection band), and / or the minimum bandwidth required for the protection band corresponding to the downlink subband (i.e., the second protection band). Accordingly, the bandwidth of the first protection band and / or the second protection band actually configured by the network equipment can be greater than or equal to the minimum bandwidth of the first protection band and / or the second protection band reported by the terminal equipment.

[0090] For example, the minimum bandwidth of the first protection band reported by the terminal device can be the minimum number of configurable subcarriers of the first protection band, or the minimum number of RBs, or the minimum number of PRBs, etc.

[0091] For example, the minimum bandwidth of the second guard band reported by the terminal device can be the minimum number of configurable subcarriers of the second guard band, or the minimum number of RBs, or the minimum number of PRBs, etc.

[0092] It should be noted that the bandwidth of the subcarriers, the bandwidth of the RBs, and the bandwidth of the PRBs mentioned above are related to the subcarrier space (SCS). The number of subcarriers, the minimum number of RBs, or the minimum number of PRBs reported by the terminal device can be predefined by the protocol, reported by the terminal device through the first information, or configured by the network device. This application embodiment does not impose any restrictions on this.

[0093] In this embodiment, the terminal device can also report the maximum bandwidth of its supported SBFD to the network device so that the network device can perform specific resource configuration. Furthermore, in this embodiment, the maximum bandwidth of SBFD is denoted as "maxSBFDCBW".

[0094] It should be noted that the actual SBFD bandwidth configured by the network device for the terminal device should be less than or equal to the maximum SBFD bandwidth reported by the terminal device.

[0095] Understandably, terminal devices can determine the maximum bandwidth of SBFD they support based on their own device capabilities.

[0096] It should be noted that the maximum bandwidth of SBFD supported by the terminal device can refer to the total bandwidth of SBFD supported by the terminal device, which may include the maximum bandwidth of the uplink subband, the maximum bandwidth of the downlink subband, the minimum bandwidth of the first protection band, and the minimum bandwidth of the second protection band. Alternatively, the maximum bandwidth of SBFD supported by the terminal device is the sum of the maximum bandwidth of the uplink subband, the maximum bandwidth of the downlink subband, the minimum bandwidth of the first protection band, and the minimum bandwidth of the second protection band.

[0097] The following example illustrates the bandwidth configuration of SBFD supported by the terminal device. Referring to Table 1, which shows one example of SBFD bandwidth configuration, in this example, the terminal device can report to the network device the maximum configurable number of RBs (N1) for the uplink subband, the minimum number of RBs (N2) for the corresponding guard band of the uplink subband, the maximum configurable number of RBs (N3) for the downlink subband, and the minimum number of RBs (N4) for the corresponding guard band of the downlink subband. It should be understood that the maxSBFDCBW reported by the terminal device can be N1+N2+N3+N4.

[0098] Table 1. Bandwidth Configuration for SBFD Subband Reporting

[0099] In one embodiment of this application, the terminal device can also report the subband pattern it supports to the network device through the first information. The subband pattern can be understood as the uplink and downlink subband configurations that the terminal supports simultaneously in the frequency domain, such as the number of subbands and the transmission direction of each subband.

[0100] It should be noted that subband patterns can also be called frequency domain patterns, subband modes, frequency domain patterns, subband designs, frequency domain designs, subband styles, frequency domain styles, subband forms, frequency domain forms, etc. The above descriptions are equivalent or interchangeable.

[0101] In some embodiments, the sub-band pattern may indicate one or more of the following:

[0102] Number of sub-bands;

[0103] The transmission direction of each subband.

[0104] Understandably, terminal devices can report to network devices the number of subbands included in the supported SBFD, as well as the transmission direction of each subband.

[0105] In one possible implementation, the terminal device can use N bits to indicate the subband pattern of the SBFD it supports. Each of the N bits corresponds to a subband of the SBFD supported by the terminal device, and the value of each bit corresponds to the transmission direction of the subband it corresponds to.

[0106] For example, refer to Table 2 for one sub-band pattern indication method.

[0107] Table 2

[0108] Referring to Table 2, the terminal device can indicate the SBFD subband pattern it supports using 3 bits of information. Each bit in this 3-bit information, from most significant to least significant, corresponds to the first, second, and third subbands of the SBFD subband. A bit value of 0 indicates uplink transmission, while a bit value of 1 indicates downlink transmission.

[0109] Specifically, referring to Table 2, the terminal device can report "011" to indicate that the SBFD subband pattern supported by the terminal device is DU. The terminal device can report "010" to indicate that the SBFD subband pattern supported by the terminal device is DUD. The terminal device can report "100" to indicate that the SBFD subband pattern supported by the terminal device is DU. The terminal device can also report "101" to indicate that the SBFD subband pattern supported by the terminal device is UDU.

[0110] It should be noted that in the above implementation, the terminal device can report more sub-band combination capabilities by increasing the number of bits.

[0111] In one possible implementation, the terminal device can indicate the subband pattern of the SBFD supported by the terminal device using N bits. Wherein, 2 N This represents the total number of all possible sub-band patterns. Understandably, both the terminal and network devices can maintain a mapping table that represents the mapping relationship between all sub-band patterns and the values ​​of the indication information.

[0112] For example, refer to Table 3 for another sub-band pattern indication method.

[0113] Table 3

[0114] Referring to Table 3, there are four subband patterns. Therefore, the terminal device can indicate the SBFD subband pattern it supports using 2 bits of information. Specifically, the terminal device can report "00" to indicate that it supports the SBFD subband pattern DU. The terminal device can report "01" to indicate that it supports the SBFD subband pattern DUD. The terminal device can report "10" to indicate that it supports the SBFD subband pattern DU. The terminal device can also report "11" to indicate that it supports the SBFD subband pattern UDU.

[0115] It should be noted that the above mapping table can be predefined by the protocol or configured by the network device, and this application embodiment does not impose any restrictions on it.

[0116] In one embodiment of this application, the terminal device may report to the network device the bandwidth configuration of the SBFD it supports, and / or the subband pattern of the supported SBFD. In this way, the network device can flexibly configure resources for the terminal device based on the bandwidth configuration of the SBFD supported by the terminal device, and / or the subband pattern of the supported SBFD.

[0117] In one embodiment of this application, the SBFD configuration supported by the terminal device further includes one or more of the following:

[0118] The maximum bandwidth of each subband in the subband pattern of SBFD;

[0119] The minimum bandwidth of the guard band corresponding to each subband in the SBFD subband pattern.

[0120] Understandably, in addition to reporting the maximum bandwidth of the SBFD supported by the terminal device and / or the subband pattern of the SBFD, the first information can also report the maximum bandwidth of each subband in the SBFD subband pattern, and / or the minimum bandwidth of the guard band corresponding to each subband in the SBFD subband pattern.

[0121] Specifically, considering that the bandwidth configuration of SBFD supported by the terminal device is closely related to the SBFD subband pattern it supports, the relationship between subband bandwidth, protection bandwidth and SBFD subband pattern supported by the terminal device can be further established based on the maximum bandwidth of SBFD supported by the terminal device and / or the SBFD subband pattern reported by the terminal device. This will further clarify the capabilities of the terminal device and enable the network device to configure resources for the terminal device more accurately.

[0122] For example, assuming the terminal device has already reported to the network device that its supported subband pattern is DUD, the terminal device can also report the information shown in Report 4. Specifically, the terminal device can report the maximum number of RBs in the first subband of the DUD as A, the maximum number of RBs in the second subband as B, and the maximum number of RBs in the third subband as C. In addition, the terminal device also needs to report the minimum number of RBs in the guard band corresponding to the first subband as a, the minimum number of RBs in the guard band corresponding to the second subband as b, and the minimum number of RBs in the guard band corresponding to the third subband as c.

[0123] Table 4

[0124] It should be noted that the aforementioned first information can be information concerning any of the following objects:

[0125] Terminal equipment, carrier, frequency band, frequency band combination, frequency band range.

[0126] For example, the first information can be reported to a terminal device, or in other words, the first information reported by the terminal device can be applied to that terminal device. If the terminal device reports first information specific to itself, it indicates that the terminal device can support this first information on various frequency bands, which can reduce the signaling overhead of terminal capability reporting.

[0127] For example, the first information can be reported on a carrier, or in other words, the first information reported by the terminal device can be applied to a specific carrier. That is, different carriers can independently report their corresponding first information. For instance, the terminal device can support the first information on one or more carriers, while not supporting it on other carriers. By reporting independently on different carriers, the terminal device can achieve greater flexibility.

[0128] For example, the first information can be reported on a frequency band, or in other words, the first information reported by the terminal device can be applied to a specific frequency band. That is, different frequency bands can independently report their corresponding first information. For instance, the terminal device may support the first information on one or more frequency bands, while not supporting it on other frequency bands. By reporting independently on different frequency bands, the terminal device can achieve greater flexibility.

[0129] For example, the first information can be reported independently according to band combination. For instance, a terminal device may not report the first information under one band combination, but may report it under another. It should be understood that reporting different band combinations independently allows the terminal greater flexibility.

[0130] For example, the first information can be reported according to the frequency range, meaning that different frequency bands (FRs) (e.g., low-frequency FR1 and high-frequency FR2) can be reported independently. It should be understood that independent reporting of different FRs allows the terminal to have greater flexibility.

[0131] In one embodiment of this application, the SBFD configuration reported in the first information can be used to determine the operating mode and / or operating bandwidth of the terminal device. For example, referring to FIG5, the information transmission method provided in this embodiment may further include the following steps:

[0132] S420: The network device determines the operating mode and / or operating bandwidth of the terminal device based on the SBFD configuration supported by the terminal device.

[0133] Understandably, network devices can receive SBFD configurations reported by terminal devices. In this way, network devices can schedule or configure transmission resources for terminal devices based on the SBFD configurations reported by those terminal devices, and determine the operating mode and / or operating bandwidth of the terminal devices.

[0134] The operating mode can be understood as either SBFD (Single-Stop Duplex) or non-SBFD (half-duplex) mode. The operating mode can also be called the transmission mode, which is the mode in which the terminal device actually transmits data. The operating bandwidth can also be called the transmission bandwidth, which is the bandwidth of the terminal device when transmitting data.

[0135] Specifically, in some embodiments, the operating mode can be used to indicate one or more operating subbands for data transmission.

[0136] It should be noted that the one or more working subbands can be all or part of the subbands in the SBFD configuration reported by the terminal device. The transmission direction of the one or more working subbands is determined based on the subband pattern of the SBFD supported by the terminal device.

[0137] For example, in the examples shown in Table 2 or Table 3, if the subband pattern of the SBFD supported by the terminal device is DUD, then the working subband can be all the subbands in DUD, or the working subband can be the first downlink subband, the uplink subband, or the second downlink subband in DUD. The working subband can also be the first downlink subband and the uplink subband in DUD, or the uplink subband and the second downlink subband in DUD, or the first downlink subband and the second downlink subband in DUD.

[0138] In some embodiments, the operating bandwidth may include one or more of the following:

[0139] The total bandwidth of one or more working subbands indicated by the working mode;

[0140] The bandwidth of each working subband in one or more working subbands indicated by the working mode;

[0141] The bandwidth of the guard band corresponding to each working subband in one or more working subbands indicated by the working mode.

[0142] Understandably, the total bandwidth of one or more working subbands determined by the network device for the terminal device based on the SBFD configuration reported by the terminal device is less than or equal to the maximum bandwidth of SBFD supported by the terminal device. That is, the total bandwidth of one or more working subbands determined by the network device can be less than or equal to the maxSBFDCBW reported by the terminal device.

[0143] It's understandable that network devices can determine the bandwidth of each working subband of a terminal device. Specifically, network devices can determine the bandwidth of each working subband based on the SBFD bandwidth configuration reported by the terminal device.

[0144] In some embodiments, if the terminal device reports to the network device the maximum bandwidth of the subband it supports for uplink transmission (e.g., the example shown in Table 1), the total bandwidth of the uplink-direction working subbands in one or more working subbands determined by the network device should be less than or equal to the maximum bandwidth of the subbands for uplink transmission reported by the terminal device.

[0145] In some embodiments, if a terminal device reports to a network device the maximum bandwidth of the subband it supports for downlink transmission, the total bandwidth of the downlink-direction working subbands in one or more working subbands determined by the network device should be less than or equal to the maximum bandwidth of the subbands for downlink transmission reported by the terminal device.

[0146] In some embodiments, if the terminal device reports the maximum bandwidth of each subband it supports to the network device (e.g., the example shown in Table 4), then the bandwidth of each working subband in one or more working subbands determined by the network device for the terminal device should be less than or equal to the maximum bandwidth of that subband reported by the terminal device.

[0147] It is also understandable that, in this embodiment of the application, the network device can also determine the bandwidth of the guard band corresponding to each working subband.

[0148] In some embodiments, if the terminal device reports the minimum bandwidth of the guard band (i.e., the first guard band) corresponding to the uplink subband to the network device, then the bandwidth of the guard band corresponding to each working subband used for uplink transmission in one or more working subbands determined by the network device for the terminal device should be greater than or equal to the minimum bandwidth of the first guard band reported by the terminal device.

[0149] In some embodiments, if the terminal device reports the minimum bandwidth of the guard band (i.e., the second guard band) corresponding to the downlink subband to the network device, then the bandwidth of the guard band corresponding to each working subband used for downlink transmission in one or more working subbands determined by the network device for the terminal device should be greater than or equal to the minimum bandwidth of the second guard band reported by the terminal device.

[0150] In some embodiments, if the terminal device reports to the network device the minimum bandwidth of the guard band corresponding to each subband it supports (e.g., the example shown in Table 4), then the bandwidth of the guard band corresponding to each of the one or more working subbands determined by the network device for the terminal device should be greater than or equal to the minimum bandwidth of the guard band corresponding to that subband reported by the terminal device.

[0151] It should be noted that the bandwidth of the guard band corresponding to each working sub-band is the maximum value of the first bandwidth and the second bandwidth. The first bandwidth is the minimum bandwidth of the guard band supported by the network device, and the second bandwidth is the minimum bandwidth of the first guard band or the minimum bandwidth of the second guard band supported by the terminal device.

[0152] Understandably, network devices also need to isolate uplink and downlink transmissions to avoid interference between them. The minimum bandwidth of the guard band supported by the network device can be defined as the minimum bandwidth required to ensure that interference between uplink and downlink transmissions on the network device side remains within an acceptable range.

[0153] Based on this, during the scheduling and configuration process for terminal devices, network devices can configure the bandwidth of the protection band corresponding to each sub-band for the terminal device according to the minimum bandwidth of the protection band supported by the network device itself and the minimum bandwidth of the protection band reported by the terminal device. Specifically, the minimum bandwidth of the protection band corresponding to the working sub-band can be max{the minimum bandwidth of the protection band supported by the network device, the minimum bandwidth of the protection band supported by the terminal device}.

[0154] In one possible implementation, assuming a working subband is used for uplink transmission, the minimum bandwidth of the guard band corresponding to the working subband can be max{minimum bandwidth of the guard band supported by the network device, minimum bandwidth of the first guard band (e.g., the example shown in Table 1) / minimum bandwidth of the guard band corresponding to the working subband (e.g., the example shown in Table 4)}.

[0155] In one possible implementation, assuming a working subband is a subband used for downlink transmission, the minimum bandwidth of the guard band corresponding to the working subband can be max{minimum bandwidth of the guard band supported by the network device, minimum bandwidth of the second guard band (e.g., the example shown in Table 1) / minimum bandwidth of the guard band corresponding to the working subband (e.g., the example shown in Table 4)}.

[0156] In some embodiments, the S420 network device determines the operating mode and / or operating bandwidth of the terminal device based on the SBFD configuration supported by the terminal device, which can also be achieved in the following ways:

[0157] The network device determines the operating mode and / or operating bandwidth of the terminal device based on the SBFD configuration supported by the network device and the SBFD configuration supported by the terminal device.

[0158] Understandably, network devices that support SBFD may also have corresponding SBFD configurations configured. For example, referring to Figure 6, the subband pattern supported by the network device can be DU, where the bandwidth of the uplink subband in the SBFD supported by the network device can be X1, the bandwidth of the downlink subband can be X3, and the bandwidth of the guard band between the uplink and downlink subbands is X2.

[0159] When scheduling or configuring the operating mode and / or operating bandwidth for terminal devices, network devices can pair their own SBFD configuration with the SBFD configuration reported by the terminal devices to determine the operating mode and / or operating bandwidth of the terminal devices.

[0160] For example, referring to Figure 6, UE2 reports to the network device via its UE capability information that the subband pattern of its supported SBFD is DU, and that the maximum bandwidth of the supported uplink subband of UE2 is N1, the maximum bandwidth of the downlink subband is N3, and the bandwidth of the guard band between the uplink and downlink subbands is N3. Based on this, the network device can configure the corresponding working subband and working bandwidth for UE2 according to the above information reported by UE2. Referring to Figure 6, the network device can configure working subband 1 for uplink transmission with a bandwidth of N1 for UE2, and working subband 2 for downlink transmission with a bandwidth of N3 for UE2. The network device can also configure the bandwidth of the guard band for UE2, where the bandwidth of the guard band is max{X2, N2}.

[0161] It should be noted that network devices can configure corresponding operating modes and / or operating bandwidths for multiple terminal devices. These multiple terminal devices may include those supporting SBFD transmission, or they may include those supporting non-SBFD transmission.

[0162] It should also be noted that terminal devices that support non-SBFD transmission can also be called terminal devices that support half-duplex transmission, or traditional terminal devices; the three are equivalent or interchangeable.

[0163] In some embodiments, the configuration priority of the operating mode and / or operating bandwidth of a terminal device that supports SBFD transmission is higher than the configuration priority of the operating mode and / or operating bandwidth of a terminal device that supports half-duplex transmission.

[0164] Understandably, network devices can prioritize configuring operating modes and / or operating bandwidth for terminal devices that support SBFD transmission, and further, based on the remaining bandwidth of the network device, configure operating modes and / or operating bandwidth for terminal devices that support half-duplex transmission.

[0165] For example, referring to Figure 6, the network device can prioritize configuring the operating mode and / or operating bandwidth for UE2, which supports SBFD transmission. Then, within the remaining bandwidth of the network device, UE1 and UE3 can be configured for transmission operating modes. Specifically, the network device can configure UE1 to operate in downlink and UE3 to operate in uplink, and the guard band between UE1 and UE3 and UE2 is configured according to the bandwidth capacity reported by UE2.

[0166] In some embodiments, referring to FIG5, the method provided in this application embodiment may further include the following steps:

[0167] S430. The network device sends second information to the terminal device, and the terminal device receives the second information, which is used to configure the working mode and / or working bandwidth of the terminal device.

[0168] Understandably, after determining the operating mode and / or bandwidth of a terminal device, a network device can instruct the terminal device to perform the determined operating mode and / or bandwidth so that the terminal device can transmit based on the instructed operating mode and / or bandwidth.

[0169] In summary, in the method provided by the embodiments of this application, in order for the network device to correctly configure the sub-band full-duplex working mode and bandwidth of the terminal device, the terminal device needs to report its supported sub-band full-duplex bandwidth configuration capability. In this way, the network device can then perform reasonable sub-band full-duplex working mode and bandwidth configuration based on its own supported sub-band full-duplex bandwidth configuration capability and the capability reported by the terminal.

[0170] The information transmission method provided in this application embodiment will be described in detail below with reference to specific application scenarios.

[0171] It should be understood that SBFD is a brand-new full-duplex technology introduced by 3GPP in Release 18. Currently, SBFD in Release 18 and Release 19 is based on the downlink spectrum of the base station, that is, within an existing base station TDD time slot, it can realize the simultaneous downlink transmission and uplink reception of the base station in the frequency domain.

[0172] Considering the complexity of UE implementation, within the same time slot, a UE only needs to perform uplink transmission or downlink reception. However, in the future evolution of 6G, to achieve more flexible scheduling and lower uplink / downlink latency, a UE can also have the ability to simultaneously receive downlink and transmit uplink at the same time. In terms of spectrum, the uplink and downlink sub-bands supported by the base station and UE are determined based on their antenna isolation, RF interference cancellation capability, and baseband interference cancellation capability, which define the supported bandwidth configuration and guard band bandwidth. Therefore, different base stations and UEs have different sub-band full-duplex bandwidth configuration capabilities. For the base station to correctly configure the UE's sub-band full-duplex operating mode and bandwidth, the UE needs to report its supported sub-band full-duplex bandwidth configuration capabilities in that frequency band. The base station then uses its own supported sub-band full-duplex bandwidth configuration capabilities in that frequency band, combined with the capabilities reported by the UE, to perform a reasonable sub-band full-duplex operating mode and bandwidth configuration.

[0173] Example 1

[0174] In this embodiment of the application, the UE can report the SBFD bandwidth configuration it supports.

[0175] For example, the UE can report the bandwidth configuration "SBFDchannelbandwidthconfig" of the supported SBFD in the capability signaling in the RRC.

[0176] It should be noted that the bandwidth configuration here may include the subcarrier bandwidth of the uplink and downlink subbands in the actual operation of the UE, the number of configurable RBs, and the number of RBs in the corresponding guard band GB.

[0177] It should also be noted that "SBFDchannelbandwidthconfig" can be the terminal capability reported for each frequency band, and the UE can support different SBFD capabilities on different frequency bands.

[0178] Referring to the bandwidth configuration of an SBFD shown in Table 1, in this example, the UE can report to the base station the maximum number of RBs N1 that can be configured in the uplink subband, the minimum number of RBs N2 in the guard band corresponding to the uplink subband, the maximum number of RBs N3 that can be configured in the downlink subband, and the minimum number of RBs N4 in the guard band corresponding to the downlink subband.

[0179] As shown in Table 1, the number of configurable RBs in the uplink / downlink subbands is the maximum value among the capabilities reported by the UE. This means that the base station can configure fewer terminal transmission RBs than the corresponding number of RBs, which facilitates flexible scheduling by the base station.

[0180] The configurable number of RBs for the uplink / downlink subband guard band is the minimum number of RBs. This is the minimum number of RBs required by the UE to ensure that uplink and downlink interference during SBFD transmission is within acceptable limits, based on the overall capability of the UE's antenna isolation, RF, and baseband interference cancellation, as described above. The base station needs to configure a number of RBs greater than or equal to this minimum.

[0181] Example 2

[0182] In this embodiment, the UE can report the frequency domain pattern of its supported SBFD, that is, the uplink and downlink subband configurations that the UE supports simultaneously in the frequency domain.

[0183] For example, the UE can report the frequency domain pattern of SBFD in the capability signaling of RRC.

[0184] It should be noted that SBFD subbands require the joint operation of both RF subband filters and baseband filters. Considering the current complexity of UE front-end design, the SBFD frequency domain pattern in Table 2 is used as an example to illustrate the UE's reporting capabilities. Referring to Table 2, the capabilities reported by the UE can be a string of bits, where 0 represents downlink and 1 represents uplink. From the most significant bit to the least significant bit, these represent the first, second, and third subbands of the SBFD subband. Similarly, the terminal can report more subband combinations by increasing the number of bits.

[0185] Example 3

[0186] Considering that the subband bandwidth and total SBFD bandwidth supported by a UE on different SBFD subband patterns are derived from the specific device capabilities of the UE, the total SBFD bandwidth supported by the UE in a frequency band also needs to be reported to the base station to facilitate specific configuration by the base station. This total SBFD bandwidth can be reported by the terminal capability. In the RRC signaling report, the terminal separately reports its supported SBFD bandwidth "maxSBFDCBW". Then, when configuring the SBFD bandwidth of this terminal, the total bandwidth should be less than or equal to the reported maximum supported SBFD bandwidth value.

[0187] Example 4

[0188] Considering that the subband bandwidth supported by the UE is closely related to its supported SBFD subband pattern, number of subbands, and subband form, the relationship between subband bandwidth, guard band bandwidth, and SBFD subband pattern supported by the UE can be further established based on Embodiments 1, 2, and 3 to further clarify the UE's capabilities.

[0189] For example, Table 4 shows a specific example of a DUD subband pattern, where the first row of the pattern indicates that the frequency domain distribution of the SBFD subband is downlink, uplink, downlink. The transmission bandwidth configuration rows are: A corresponds to the first subband, the maximum number of RBs that can be configured for the DL subband; B corresponds to the second subband, the maximum number of RBs that can be configured for the UL subband; and C corresponds to the third subband, the maximum number of RBs that can be configured for the DL subband.

[0190] a corresponds to the first sub-band, the minimum number of protection bands (RBs) that need to be configured for the DL sub-band; b corresponds to the second sub-band, the minimum number of protection bands (RBs) that need to be configured for the UL sub-band; and c corresponds to the third sub-band, the minimum number of protection bands (RBs) that need to be configured for the DL sub-band.

[0191] It should be noted that the specific transmission bandwidth configuration and protection bandwidth configuration can be found in Example 5.

[0192] It should also be noted that, for the maximum SBFD bandwidth maxSBFDCBW that the UE can support as specified in Example 4, the total bandwidth of the actual SBFD bandwidth configuration under a frequency band should be less than or equal to maxSBFDCBW.

[0193] Example 5

[0194] The base station can configure the operating mode and operating bandwidth for the UE based on the supported SBFD subband pattern reported by the UE and the bandwidth configuration of the supported SBFD.

[0195] Referring to Figure 6, the subband pattern of the SBFD supported by the base station can be DU, where the bandwidth of the uplink subband can be X1, the bandwidth of the downlink subband can be X3, and the bandwidth of the guard band between the uplink and downlink subbands is X2. The subband pattern of SBFD supported by UE2 is DU, and the maximum bandwidth of the uplink subband supported by UE2 is N1, the maximum bandwidth of the downlink subband is N3, and the bandwidth of the guard band between the uplink and downlink subbands is N3.

[0196] The base station can be scheduled in the following ways.

[0197] 1) Base stations prioritize configuring the uplink and downlink subbands of SBFD within their own bandwidth based on their own SBFD capabilities, including the bandwidth of the uplink and downlink subbands.

[0198] 2) Based on the UE's reported SBFD capability, the base station prioritizes scheduling SBFD transmission for UE2, which has SBFD transmission capability. UE2 is then configured to operate in SBFD mode. Specifically, the base station can configure the SBFD transmission bandwidth and corresponding guard band for UE2 based on its own supported SBFD bandwidth, the SBFD pattern reported by the UE, and the corresponding SBFD bandwidth capability. The guard band configuration is set to max{base station guard band capability + terminal guard band capability}.

[0199] 3) Within the remaining bandwidth of the base station, UE1 and UE3 can be configured to operate in the traditional terminal mode. UE1 operates in the downlink mode of the base station, and UE3 operates in the uplink mode of the base station. The protection band between UE1 and UE3 and UE2 is configured according to the bandwidth capacity reported by UE2.

[0200] In summary, in order for the base station to correctly configure the sub-band full-duplex operating mode and bandwidth of the UE, the UE needs to report its sub-band full-duplex bandwidth configuration capability supported in that frequency band. The base station then performs reasonable sub-band full-duplex operating mode and bandwidth configuration based on its own sub-band full-duplex bandwidth configuration capability supported in that frequency band and the capability reported by the UE.

[0201] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be considered as the content disclosed in this application. Moreover, without conflict, the various embodiments and / or the technical features in the various embodiments described in this application can be arbitrarily combined with the prior art, and the resulting technical solutions should also fall within the protection scope of this application.

[0202] It should also be understood that in the various method embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. Furthermore, in the embodiments of this application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data. "Downlink" indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell; "uplink" indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site; and "sidelink" indicates that the transmission direction of signals or data is a third direction from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. Additionally, in the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. Specifically, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0203] Based on the foregoing embodiments, this application provides a corresponding information transmission device.

[0204] Figure 7 is a schematic diagram of the structure of the information transmission device 700 provided in an embodiment of this application, which is applied to a terminal device. As shown in Figure 7, the information transmission device 700 includes:

[0205] The first sending unit 710 is configured to send first information, which is used to indicate the SBFD configuration supported by the terminal device.

[0206] In some embodiments, the SBFD configuration supported by the terminal device is used to determine the operating mode and / or operating bandwidth of the terminal device.

[0207] In some embodiments, the SBFD configuration supported by the terminal device includes one or more of the following:

[0208] The bandwidth configuration of SBFD supported by the terminal device;

[0209] The terminal device supports the SBFD subband pattern.

[0210] In some embodiments, the bandwidth configuration includes one or more of the following:

[0211] SBFD's maximum bandwidth;

[0212] Maximum bandwidth of the subband used for uplink transmission;

[0213] Maximum bandwidth of the subband used for downlink transmission;

[0214] The minimum bandwidth of the first guard band; the first guard band is the guard band corresponding to the sub-band used for uplink transmission;

[0215] The minimum bandwidth of the second guard band; the second guard band is the guard band corresponding to the sub-band used for downlink transmission.

[0216] In some embodiments, the sub-band pattern is used to indicate one or more of the following:

[0217] Number of sub-bands;

[0218] The transmission direction of each subband.

[0219] In some embodiments, the SBFD configuration supported by the terminal device further includes one or more of the following:

[0220] The maximum bandwidth of each subband in the subband pattern of SBFD;

[0221] The minimum bandwidth of the guard band corresponding to each subband in the SBFD subband pattern.

[0222] In some embodiments, the information transmission device further includes a first receiving unit configured to receive second information, the second information being used to configure the operating mode and / or operating bandwidth of the terminal device; the operating mode and / or operating bandwidth being determined based on the SBFD configuration supported by the terminal device.

[0223] In some embodiments, the operating mode is used to indicate one or more operating sub-bands;

[0224] The transmission direction of the one or more working subbands is determined based on the subband pattern of the SBFD supported by the terminal device.

[0225] In some embodiments, the operating bandwidth includes one or more of the following:

[0226] The operating mode indicates the total bandwidth of one or more operating subbands;

[0227] The operating mode indicates the bandwidth of each operating subband in one or more operating subbands;

[0228] The operating mode indicates the bandwidth of the guard band corresponding to each of the one or more operating subbands.

[0229] In some embodiments, the total bandwidth of one or more working subbands indicated by the working mode is less than or equal to the maximum bandwidth of the SBFD supported by the terminal device.

[0230] In some embodiments, the bandwidth of the guard band corresponding to each working sub-band is the maximum value of a first bandwidth and a second bandwidth, wherein the first bandwidth is the minimum bandwidth of the guard band supported by the network device, and the second bandwidth is the minimum bandwidth of the first guard band or the minimum bandwidth of the second guard band supported by the terminal device.

[0231] In some embodiments, the first information is directed to any of the following objects:

[0232] The terminal device;

[0233] carrier wave;

[0234] Frequency band;

[0235] Frequency band combination;

[0236] Frequency band range.

[0237] In some embodiments, the first information is terminal device capability information.

[0238] Figure 8 is a schematic diagram of the structure of an information transmission device 800 provided in an embodiment of this application, applied to a network device. As shown in Figure 8, the information transmission device 800 includes:

[0239] The second receiving unit 810 is configured to receive first information, which is used to indicate the SBFD configuration supported by the terminal device.

[0240] In some embodiments, the SBFD configuration supported by the terminal device is used to determine the operating mode and / or operating bandwidth of the terminal device.

[0241] In some embodiments, the SBFD configuration supported by the terminal device includes one or more of the following:

[0242] The bandwidth configuration of SBFD supported by the terminal device;

[0243] The terminal device supports the SBFD subband pattern.

[0244] In some embodiments, the bandwidth configuration includes one or more of the following:

[0245] SBFD's maximum bandwidth;

[0246] Maximum bandwidth of the subband used for uplink transmission;

[0247] Maximum bandwidth of the subband used for downlink transmission;

[0248] The minimum bandwidth of the first guard band; the first guard band is the guard band corresponding to the sub-band used for uplink transmission;

[0249] The minimum bandwidth of the second guard band; the second guard band is the guard band corresponding to the sub-band used for downlink transmission.

[0250] In some embodiments, the sub-band pattern is used to indicate one or more of the following:

[0251] Number of sub-bands;

[0252] The transmission direction of each subband.

[0253] In some embodiments, the SBFD configuration supported by the terminal device further includes one or more of the following:

[0254] The maximum bandwidth of each subband in the subband pattern of SBFD;

[0255] The minimum bandwidth of the guard band corresponding to each subband in the SBFD subband pattern.

[0256] In some embodiments, the information transmission device 800 further includes a second sending unit configured to send second information to the terminal device, the second information being used to configure the operating mode and / or operating bandwidth of the terminal device.

[0257] In some embodiments, the information transmission device 800 further includes a determining unit configured to determine the operating mode and / or operating bandwidth of the terminal device based on the SBFD configuration supported by the terminal device.

[0258] In some embodiments, the determining unit is further configured to determine the operating mode and / or operating bandwidth of the terminal device based on the SBFD configuration supported by the network device and the SBFD configuration supported by the terminal device.

[0259] In some embodiments, the configuration priority of the operating mode and / or operating bandwidth of a terminal device that supports SBFD transmission is higher than the configuration priority of the operating mode and / or operating bandwidth of a terminal device that supports half-duplex transmission.

[0260] In some embodiments, the operating mode is used to indicate one or more operating sub-bands;

[0261] The transmission direction of the one or more working subbands is determined based on the subband pattern of the SBFD supported by the terminal device.

[0262] In some embodiments, the operating bandwidth includes one or more of the following:

[0263] The operating mode indicates the total bandwidth of one or more operating subbands;

[0264] The operating mode indicates the bandwidth of each operating subband in one or more operating subbands;

[0265] The operating mode indicates the bandwidth of the guard band corresponding to each of the one or more operating subbands.

[0266] In some embodiments, the total bandwidth of one or more working subbands indicated by the operating mode is less than or equal to the maximum bandwidth of the SBFD supported by the terminal device.

[0267] In some embodiments, the bandwidth of the guard band corresponding to each working sub-band is the maximum value of a first bandwidth and a second bandwidth, wherein the first bandwidth is the minimum bandwidth of the guard band supported by the network device, and the second bandwidth is the minimum bandwidth of the first guard band or the minimum bandwidth of the second guard band supported by the terminal device.

[0268] In some embodiments, the first information is directed to any of the following objects:

[0269] The terminal device;

[0270] carrier wave;

[0271] Frequency band;

[0272] Frequency band combination;

[0273] Frequency band range.

[0274] In some embodiments, the first information is terminal device capability information.

[0275] Those skilled in the art should understand that the description of the channel transmission apparatus in the embodiments of this application can be understood with reference to the description of the channel transmission method in the embodiments of this application.

[0276] Figure 9 is a schematic structural diagram of a communication device provided in an embodiment of this application. This communication device can be a terminal device or a network device. The communication device 900 shown in Figure 9 includes a processor 910, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0277] Optionally, as shown in FIG9, the communication device 900 may further include a memory 920. The processor 910 may retrieve and run computer programs from the memory 920 to implement the methods described in the embodiments of this application.

[0278] The memory 920 can be a separate device independent of the processor 910, or it can be integrated into the processor 910.

[0279] Optionally, as shown in FIG9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0280] The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include antennas, and the number of antennas may be one or more.

[0281] Optionally, the communication device 900 may specifically be a network device in the embodiments of this application, and the communication device 900 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0282] Optionally, the communication device 900 may specifically be a terminal device in the embodiments of this application, and the communication device 900 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0283] Figure 10 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 1000 shown in Figure 10 includes a processor 1010, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0284] Optionally, as shown in FIG10, chip 1000 may further include memory 1020. Processor 1010 can call and run computer programs from memory 1020 to implement the methods in the embodiments of this application.

[0285] The memory 1020 can be a separate device independent of the processor 1010, or it can be integrated into the processor 1010.

[0286] Optionally, the chip 1000 may also include an input interface 1030. The processor 1010 can control the input interface 1030 to communicate with other devices or chips, specifically, to acquire information or data sent by other devices or chips.

[0287] Optionally, the chip 1000 may also include an output interface 1040. The processor 1010 can control the output interface 1040 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0288] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0289] Optionally, the chip can be applied to the terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0290] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0291] This application also provides a computer storage medium that stores one or more programs, which can be executed by one or more processors to implement the methods in this application.

[0292] Figure 11 is a schematic block diagram of a communication system provided in an embodiment of this application. As shown in Figure 11, the communication system 1100 includes a terminal device 1110 and a network device 1120.

[0293] The terminal device 1110 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1120 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, these will not be elaborated here.

[0294] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0295] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0296] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0297] This application also provides a computer-readable storage medium for storing computer programs.

[0298] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0299] Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0300] This application also provides a computer program product, including computer program instructions.

[0301] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0302] Optionally, the computer program product can be applied to the terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0303] This application also provides a computer program.

[0304] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0305] Optionally, the computer program can be applied to the terminal device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0306] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0307] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0308] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0309] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0310] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0311] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0312] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An information transmission method, the method comprising: The terminal device sends first information, which is used to indicate the sub-band full-duplex (SBFD) configuration supported by the terminal device.

2. The method according to claim 1, wherein, The SBFD configuration supported by the terminal device is used to determine the operating mode and / or operating bandwidth of the terminal device.

3. The method according to claim 1 or 2, wherein, The SBFD configuration supported by the terminal device includes one or more of the following: The bandwidth configuration of SBFD supported by the terminal device; The terminal device supports the SBFD subband pattern.

4. The method according to claim 3, wherein, The bandwidth configuration includes one or more of the following: SBFD's maximum bandwidth; Maximum bandwidth of the subband used for uplink transmission; Maximum bandwidth of the subband used for downlink transmission; The minimum bandwidth of the first guard band; the first guard band is the guard band corresponding to the sub-band used for uplink transmission; The minimum bandwidth of the second guard band; the second guard band is the guard band corresponding to the sub-band used for downlink transmission.

5. The method according to claim 3 or 4, wherein, The sub-band pattern is used to indicate one or more of the following: Number of sub-bands; The transmission direction of each subband.

6. The method according to any one of claims 3-5, wherein, The SBFD configuration supported by the terminal device also includes one or more of the following: The maximum bandwidth of each subband in the subband pattern of SBFD; The minimum bandwidth of the guard band corresponding to each subband in the SBFD subband pattern.

7. The method according to any one of claims 1-6, wherein, Also includes: The terminal device receives second information, which is used to configure the terminal device's operating mode and / or operating bandwidth. The operating mode and / or operating bandwidth are determined based on the SBFD configuration supported by the terminal device.

8. The method according to claim 2 or 7, wherein, The operating mode is used to indicate one or more working sub-bands; The transmission direction of the one or more working subbands is determined based on the subband pattern of the SBFD supported by the terminal device.

9. The method according to claim 2 or 7, wherein, The operating bandwidth includes one or more of the following: The operating mode indicates the total bandwidth of one or more operating subbands; The operating mode indicates the bandwidth of each operating subband in one or more operating subbands; The operating mode indicates the bandwidth of the guard band corresponding to each of the one or more operating subbands.

10. The method according to claim 9, wherein, The total bandwidth of one or more working subbands indicated by the working mode is less than or equal to the maximum bandwidth of SBFD supported by the terminal device.

11. The method according to claim 9, wherein, The bandwidth of the guard band corresponding to each working sub-band is the maximum value of the first bandwidth and the second bandwidth. The first bandwidth is the minimum bandwidth of the guard band supported by the network device, and the second bandwidth is the minimum bandwidth of the first guard band or the minimum bandwidth of the second guard band supported by the terminal device.

12. The method according to any one of claims 1-11, wherein, The first information pertains to any of the following objects: The terminal device; carrier wave; Frequency band; Frequency band combination; Frequency band range.

13. The method according to any one of claims 1-12, wherein, The first piece of information is the terminal device capability information.

14. An information transmission method, the method comprising: The network device receives first information, which is used to indicate the sub-band full-duplex (SBFD) configuration supported by the terminal device.

15. The method according to claim 14, wherein, The SBFD configuration supported by the terminal device is used to determine the operating mode and / or operating bandwidth of the terminal device.

16. The method according to claim 14 or 15, wherein, The SBFD configuration supported by the terminal device includes one or more of the following: The bandwidth configuration of SBFD supported by the terminal device; The terminal device supports the SBFD subband pattern.

17. The method according to claim 16, wherein, The bandwidth configuration includes one or more of the following: SBFD's maximum bandwidth; Maximum bandwidth of the subband used for uplink transmission; Maximum bandwidth of the subband used for downlink transmission; The minimum bandwidth of the first guard band; the first guard band is the guard band corresponding to the sub-band used for uplink transmission; The minimum bandwidth of the second guard band; the second guard band is the guard band corresponding to the sub-band used for downlink transmission.

18. The method according to claim 16 or 17, wherein, The sub-band pattern is used to indicate one or more of the following: Number of sub-bands; The transmission direction of each subband.

19. The method according to any one of claims 16-18, wherein, The SBFD configuration supported by the terminal device also includes one or more of the following: The maximum bandwidth of each subband in the subband pattern of SBFD; The minimum bandwidth of the guard band corresponding to each subband in the SBFD subband pattern.

20. The method according to any one of claims 14-19, wherein, Also includes: The network device sends second information to the terminal device, the second information being used to configure the terminal device's operating mode and / or operating bandwidth.

21. The method according to claim 21, wherein, Also includes: The network device determines the operating mode and / or operating bandwidth of the terminal device based on the SBFD configuration supported by the terminal device.

22. The method according to claim 21, wherein, Also includes: The network device determines the operating mode and / or operating bandwidth of the terminal device based on the SBFD configuration supported by the network device and the SBFD configuration supported by the terminal device.

23. The method according to any one of claims 20-22, wherein, The configuration priority of the operating mode and / or operating bandwidth of terminal devices that support SBFD transmission is higher than that of terminal devices that support half-duplex transmission.

24. The method according to any one of claims 15, 20-23, wherein, The operating mode is used to indicate one or more working sub-bands; The transmission direction of the one or more working subbands is determined based on the subband pattern of the SBFD supported by the terminal device.

25. The method according to any one of claims 15, 20-23, wherein, The operating bandwidth includes one or more of the following: The operating mode indicates the total bandwidth of one or more operating subbands; The operating mode indicates the bandwidth of each operating subband in one or more operating subbands; The operating mode indicates the bandwidth of the guard band corresponding to each of the one or more operating subbands.

26. The method of claim 25, wherein, The total bandwidth of one or more working subbands indicated by the working mode is less than or equal to the maximum bandwidth of SBFD supported by the terminal device.

27. The method according to claim 25, wherein, The bandwidth of the guard band corresponding to each working sub-band is the maximum value of the first bandwidth and the second bandwidth. The first bandwidth is the minimum bandwidth of the guard band supported by the network device, and the second bandwidth is the minimum bandwidth of the first guard band or the minimum bandwidth of the second guard band supported by the terminal device.

28. The method according to any one of claims 14-27, wherein, The first information pertains to any of the following objects: The terminal device; carrier wave; Frequency band; Frequency band combination; Frequency band range.

29. The method according to any one of claims 14-28, wherein, The first piece of information is the terminal device capability information.

30. An information transmission device applied to a terminal device, the device comprising: The first transmitting unit is configured to transmit first information, which is used to indicate the sub-band full-duplex (SBFD) configuration supported by the terminal device.

31. An information transmission device applied to a network device, the device comprising: The second receiving unit is configured to receive first information, which is used to indicate the sub-band full-duplex (SBFD) configuration supported by the terminal device.

32. A terminal device, comprising: Memory is used to store executable instructions for a computer; A processor, connected to the memory, is configured to implement the method of any one of claims 1 to 13 by executing the computer-executable instructions.

33. A network device, comprising: Memory is used to store executable instructions for a computer; A processor, connected to the memory, is configured to implement the method of any one of claims 14 to 29 by executing the computer-executable instructions.

34. A chip, the chip comprising: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 13, or the method as claimed in any one of claims 14 to 29; A transceiver is used to receive and send information during the exchange of information with a device or chip.

35. A computer-readable storage medium for storing a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 13, or the method as claimed in any one of claims 14 to 29.

36. A computer program product comprising computer program instructions that cause a computer to perform the method as claimed in any one of claims 1 to 13, or the method as claimed in any one of claims 14 to 29.

37. A computer program that causes a computer to perform the method as claimed in any one of claims 1 to 13, or the method as claimed in any one of claims 14 to 29.

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