Guard band determination method and apparatus, and terminal and network-side device

Abstract

Disclosed are a guard band determination method and apparatus, a terminal, and a network side device, belonging to the technical field of communications. The guard band determination method disclosed in the embodiments of the present application comprises: transmitting target information, wherein the target information is used for determining a target guard band, the target guard band is a guard band between an uplink sub-band and a downlink sub-band when a terminal operates in a full-duplex mode, and the target guard band is related to capability information of the terminal.

Description

Guard band determination method, device, terminal and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202310934573.0 filed in China on July 27, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method, apparatus, terminal and network-side equipment for determining a guard band. Background Art

[0004] When a user equipment (UE) operates in full-duplex mode, it may experience interference from its own uplink transmissions when receiving downlink transmissions from network-side devices. Therefore, a guard band (GB) must be reserved between the frequency resources of the UE's different transmission directions (between uplink and downlink subbands) to isolate the UE's uplink and downlink transmissions.

[0005] Currently, fixed or pre-configured guard bands are used to isolate uplink and downlink frequency domain resources. This guard band determination method will lead to a decrease in resource utilization and needs to be improved.

[0006] Summary of the Invention

[0007] Embodiments of the present application provide a method, apparatus, terminal, and network-side equipment for determining a guard band to improve resource utilization.

[0008] In a first aspect, a method for determining a guard band is provided, which is applied to a terminal. The method includes:

[0009] Transmission target information, wherein the target information is used to determine a target guard band, the target guard band is a guard band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target guard band is related to capability information of the terminal.

[0010] In a second aspect, a method for determining a guard band is provided, which is applied to a network-side device. The method includes:

[0011] Transmission target information, wherein the target information is used to determine a target guard band, the target guard band is a guard band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target guard band is related to capability information of the terminal.

[0012] In a third aspect, a communication device is provided, applied to a terminal, the device including:

[0013] A transmission module is used to transmit target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

[0014] In a fourth aspect, a communication device is provided, which is applied to a network-side device, and includes:

[0015] A transmission module is used to transmit target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

[0016] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0017] In the sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to transmit target information, wherein the target information is used to determine a target protection band, the target protection band being a protection band between an uplink sub-band and a downlink sub-band when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

[0018] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0019] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to transmit target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink sub-band and a downlink sub-band when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

[0020] In the ninth aspect, a communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the protection band determination method as described in the first aspect, and the network side device can be used to execute the steps of the protection band determination method as described in the second aspect.

[0021] In the tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0022] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0023] In a twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

[0024] In an embodiment of the present application, since the target protection band between the uplink sub-band and the downlink sub-band when the terminal operates in full-duplex mode can be determined by transmitting target information, and the target transmission band is related to the capability information of the terminal, rather than using a fixed or pre-configured protection band, resource utilization can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application.

[0026] FIG2A is a schematic diagram of a flexible duplex mode provided in an embodiment of the present application.

[0027] FIG2B is a schematic diagram of the network side reserving resources for transmitting and receiving isolation in the related art.

[0028] FIG3 is a flow chart of a method for determining a guard band provided by an embodiment of the present application.

[0029] FIG3A is a first detailed flowchart of a method for determining a guard band provided in an embodiment of the present application.

[0030] FIG3B is a second detailed flowchart of a method for determining a guard band provided in an embodiment of the present application.

[0031] FIG3C is a third detailed flowchart diagram of a method for determining a guard band provided in an embodiment of the present application.

[0032] FIG4 is a flow chart of a method for determining a guard band provided in another embodiment of the present application.

[0033] FIG4A is a first detailed flow chart of a method for determining a guard band provided in another embodiment of the present application.

[0034] FIG4B is a second detailed flowchart diagram of a method for determining a guard band provided in another embodiment of the present application.

[0035] FIG4C is a third detailed flowchart diagram of a method for determining a guard band provided in another embodiment of the present application.

[0036] FIG5 is a schematic diagram showing the application effect of a method for determining a guard band provided in an embodiment of the present application.

[0037] FIG6 is a schematic structural diagram of a communication device provided in an embodiment of the present application.

[0038] FIG6A is a first detailed structural diagram of a communication device provided in an embodiment of the present application.

[0039] FIG6B is a second detailed structural diagram of a communication device provided in an embodiment of the present application.

[0040] FIG6C is a third detailed structural diagram of a communication device provided in an embodiment of the present application.

[0041] FIG7 is a schematic structural diagram of a communication device provided in another embodiment of the present application.

[0042] FIG7A is a first detailed structural diagram of a communication device provided in another embodiment of the present application.

[0043] FIG7B is a second detailed structural diagram of a communication device provided in another embodiment of the present application.

[0044] FIG7C is a third detailed structural diagram of a communication device provided in another embodiment of the present application.

[0045] FIG8 is a schematic structural diagram of a communication device of the present application.

[0046] FIG9 is a schematic diagram of the hardware structure of a terminal according to an embodiment of the present application.

[0047] FIG10 is a schematic diagram of the hardware structure of the network side device in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, any other embodiments obtained by ordinary technicians in this field fall within the scope of protection of this application.

[0049] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable, where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" generally refer to a class and do not limit the number of objects. For example, the first object can be one or more. Furthermore, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects are in an "or" relationship.

[0050] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0051] FIG1 shows a block diagram of a wireless communication system applicable to embodiments of the present application. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (a home appliance with wireless communication capabilities, such as a refrigerator, a television, a washing machine, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, etc. The wearable device includes: a smart watch, a smart bracelet, a smart headset, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), a smart wristband, smart clothing, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function, or a radio access network unit. The access network device 12 may include a base station, a WLAN access point, or a WiFi node, etc. The base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set, or the like.

[0052] (Extended Service Set, ESS), Home Node B, Home Evolved Node B, Transmitting Receiving Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is introduced as an example, and the specific type of the base station is not limited.

[0053] When deploying a cellular network, frequency division duplex (FDD) or time division duplex (TDD) can be used, depending on the available spectrum and service characteristics. In FDD, uplink and downlink transmissions occur on different frequencies, preventing interference and allowing simultaneous transmission. In TDD, uplink and downlink transmissions occur on the same frequency, interleaved using time division.

[0054] In order to more flexibly utilize limited spectrum resources, dynamically match business needs, improve resource utilization efficiency, and improve the uplink coverage, latency and other performance of data transmission, a flexible duplex mode is proposed. One flexible duplex mode (non-overlapping sub-band full duplex, SBFD) is: full duplex on the network side, that is, at the same time, uplink transmission and downlink transmission can be carried out simultaneously at different frequency domain positions. In order to avoid interference between uplink and downlink, a certain guard band (Guard Band) can be reserved between the frequency domain positions corresponding to different transmission directions (corresponding to duplex sub-bands); half duplex on the terminal side, that is, consistent with TDD, at the same time, uplink transmission or downlink transmission is carried out, and the two cannot be carried out at the same time. It can be understood that in this duplex mode, the uplink transmission and downlink transmission on the network side at the same time can only be targeted at different terminals.

[0055] Figure 2A illustrates the flexible duplexing scheme described above. As shown in Figure 2A, the network equipment semi-statically divides the frequency domain of a single carrier into three duplex subbands within a portion of downlink symbols. Downlink duplex subbands are located on either side of the carrier, while the center is an uplink duplex subband. This reduces interference with adjacent carriers. In the third time slot, UE1 and UE2 perform uplink transmission and downlink reception, respectively. At this point, the terminal operates in half-duplex mode.

[0056] The embodiments of the present application recognize that when a terminal operates in full-duplex mode and receives downlink transmissions from a base station, it may be subject to interference from signals transmitted by the terminal itself in the uplink. Therefore, it is necessary to set a guard band (GB) at both ends of the UE's transmission and reception to isolate the transmission and reception. Using fixed or pre-configured guard bands for frequency domain isolation can reduce resource utilization.

[0057] In addition, since the terminal operates in full-duplex mode, the network-side device cannot know the magnitude of the self-interference generated by the uplink transmission sent by the terminal. Therefore, in order to ensure transmission performance, as shown in Figure 2B, the network-side device will reserve more resources for the terminal for full-duplex transmission and reception isolation, resulting in a decrease in resource utilization.

[0058] It can be seen that the guard band determination scheme in the related art will lead to a decrease in resource utilization. To solve this problem, the embodiment of the present application proposes a guard band determination method, which is described below.

[0059] As shown in FIG3 , an embodiment of the present application provides a method for determining a guard band, which can be applied to a terminal. The method may include:

[0060] Step 301: Transmit target information, wherein the target information is used to determine a target guard band, the target guard band being a guard band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target guard band being related to capability information of the terminal.

[0061] The full-duplex mode includes but is not limited to FDD or SBFD and other duplex modes.

[0062] It can be understood that since the terminal can determine the target protection band between the uplink subband and the downlink subband when the terminal operates in full-duplex mode by transmitting target information, and the target transmission band is related to the capability information of the terminal, rather than using a fixed or pre-configured protection band, resource utilization can be improved.

[0063] There are three specific implementations of the above step 301, which are described below one by one.

[0064] First implementation method

[0065] The target guard band is determined from the perspective of UE capability information reporting.

[0066] Specifically, as shown in FIG3A , step 301 may include:

[0067] Step 3011: Report first information to the network side device, wherein the first information is used to indicate the target protection band, and the first information includes one or more groups of capability information, and a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

[0068] It should be noted that a guard band in a set of capability information reported by the terminal may be applicable to a single carrier, multiple carriers, a band, multiple bands or a frequency range, etc., where the frequency range may include but is not limited to FR1 (frequency range 1), FR2-1 or FR2-2, etc.

[0069] The parameters of a guard band may include but are not limited to at least one of the following:

[0070] 1) Bandwidth size / quantity, where the granularity (unit) of bandwidth size / quantity may include, but is not limited to, resource element (RE), resource block (RB), resource block set (RB set), subband, subband set, carrier, and bandwidth part (BWP);

[0071] 2) Frequency domain position, where the frequency domain position may include but is not limited to a start position and / or an end position.

[0072] The first transmission parameter of the terminal may include but is not limited to at least one of the following:

[0073] 1) Uplink transmit power;

[0074] 2) Reference Signal Received Power (RSRP);

[0075] 3) Subcarrier spacing (SCS);

[0076] 4) Interference suppression performance indicators;

[0077] 5) Uplink transmission bandwidth, including one or more of the following information: uplink channel bandwidth, uplink control channel bandwidth, uplink data channel bandwidth, frequency domain resource allocation of uplink reference signal, etc.;

[0078] 6) Downlink transmission bandwidth, including one or more of the following information: downlink channel bandwidth, downlink control channel bandwidth, downlink data channel bandwidth, downlink reference signal frequency domain resource allocation, etc.;

[0079] 7) Power type;

[0080] 8)UE type.

[0081] Optionally, the set of capability information may further include an association between the first transmission parameter of the terminal and the guard band. In this case, in addition to the guard band parameter, the set of capability information reported to the network side device via the first information may include, but is not limited to, at least one of the following:

[0082] 1) Uplink transmit power, and / or the relationship between uplink transmit power and guard band, where the reported uplink transmit power may be a specific uplink transmit power value or an uplink transmit power range;

[0083] 2) Reference Signal Received Power (RSRP), and / or the relationship between RSRP and guard band, where the reported RSRP can be a specific RSRP value or RSRP range;

[0084] 3) subcarrier spacing (SCS), and / or, an association between subcarrier spacing and guard band, which may be shown in Table 1 below;

[0085] Table 1

[0086] 4) Interference suppression performance indicators, and / or, the relationship between the interference suppression performance indicators and the guard band, where the interference suppression performance indicators may include but are not limited to the UE's adjacent channel leakage measurement indicator (Adjacent Channel Leakage Ratio, ACLR), in-band emissions (Iin-band emissions, IBE), an indicator measuring the ability to suppress adjacent channel interference (adjacent channel selectivity, ACS) and in-band blocking (in-band blocking, IBB), etc., and for different guard bands, ACLR, IBE, ACS or IBB are different.

[0087] 5) Uplink transmission bandwidth, and / or the relationship between the uplink transmission bandwidth and the guard band; wherein the uplink transmission bandwidth includes, but is not limited to, one or more of the following information: uplink channel bandwidth, uplink control channel bandwidth, uplink data channel bandwidth, frequency domain resource allocation of uplink reference signals, etc.;

[0088] 6) Downlink transmission bandwidth, and / or the relationship between the downlink transmission bandwidth and the guard band; wherein the downlink transmission bandwidth includes, but is not limited to, one or more of the following information: downlink channel bandwidth, downlink control channel bandwidth, downlink data channel bandwidth, downlink reference signal frequency domain resource allocation, etc.;

[0089] 7) Power type, and / or the relationship between power type and guard band;

[0090] 8) UE type, and / or the association between UE type and guard band.

[0091] The corresponding relationship between the terminal power type and the UE type is shown in Table 2 below.

[0092] Table 2

[0093] As an example, if the terminal reports a set of capability information, then the reporting of the first information to the network-side device may include: determining a set of capability information according to a set of first transmission parameters, and reporting the set of capability information through the first information.

[0094] As another example, if the terminal reports multiple sets of capability information, then the reporting of the first information to the network-side device may include: determining multiple sets of capability information according to multiple sets of first transmission parameters, and reporting the multiple sets of capability information through the first information. The reason why the terminal reports multiple sets of capability information is that the terminal can support using different guard bands to suppress interference according to different situations. This can improve flexibility, that is, the network-side device or the terminal can flexibly select a suitable guard band to improve the transmission efficiency.

[0095] It can be understood that since the first information may include one or more sets of capability information, and a set of capability information may include at least one of the parameters of a guard band and the first transmission parameters of the terminal corresponding to the guard band, there may be the following four situations in the information contained in the first information reported by the terminal device:

[0096] 1) The parameters of a guard band;

[0097] 2) The parameters of multiple guard bands;

[0098] 3) The parameters of a guard band and the first transmission parameters of the terminal corresponding to the guard band;

[0099] 4) The parameters of multiple guard bands and the first transmission parameters of the terminal corresponding to the multiple guard bands.

[0100] For the above-mentioned first situation, the terminal can determine a guard band according to a set of capability information, and report the parameters of the guard band to the network-side device through the first information.

[0101] For example, the terminal can report the first information according to the uplink transmit power, RSRP, subcarrier spacing of the uplink / downlink, interference suppression performance index, transmission bandwidth of the uplink transmission / downlink transmission, and power type, as well as the association relationship between these first transmission parameters and the guard band. The first information includes a set of capability information, and the set of capability information includes the parameters of a guard band.

[0102] Specifically, taking the first transmission parameter of the terminal including the uplink transmit power as an example, assuming that there is a preset correspondence shown in Table 3 below, which is predefined by the protocol or configured by the network-side device, the maximum transmit power of the terminal is M, and B < M < C, then the terminal reports a set of capability information, and the set of capability information includes: {Guard band = X2}.

[0103] Table 3

[0104] In Table 3, the Tx power can be the maximum transmission power or the actual transmission power, and Max Tx power represents the maximum uplink transmission power of the terminal.

[0105] More specifically, in Table 3, the following preset correspondence relationships may exist:

[0106] Tx power = 0 - 10 dBm, GB = 10 Mhz

[0107] Tx power = 10 - 20 dBm, GB = 20 Mhz

[0108] Tx power = 23 dBm, GB = 30 Mhz

[0109] For the second case above, the terminal can determine multiple guard bands according to multiple sets of capability information, and report the parameters of these multiple guard bands to the network-side device through the first information.

[0110] For example, the terminal can report the first information according to multiple sets of different uplink transmission powers, RSRP, subcarrier spacing of the uplink / downlink, interference suppression performance indicators, transmission bandwidth of the uplink transmission / downlink transmission, and power types, as well as the association relationship between these first transmission parameter guard bands. The first information includes multiple sets of capability information, and each set of capability information includes the parameters of a guard band.

[0111] Specifically, taking the first transmission parameter of the terminal including the uplink transmission power as an example, assuming there is a preset correspondence relationship as shown in Table 3 above, which is predefined by the protocol or configured by the network-side device, the transmission power can be {M1, M2}, B < M1 < C, C < M2 < D, then the terminal reports 2 sets of capability information, and these 2 sets of capability information include: {Guard band = X2, Guard band = X3}.

[0112] For the third case above, the terminal can determine a guard band according to a set of capability information, and report the parameters of this guard band and the first transmission parameter of the terminal corresponding to this guard band to the network-side device through the first information.

[0113] For example, the terminal can report the first information according to the uplink transmission power, RSRP, subcarrier spacing of the uplink / downlink, interference suppression performance indicators, transmission bandwidth of the uplink transmission / downlink transmission, and power types, as well as the association relationship between these first transmission parameter guard bands. The first information includes a set of capability information, and this set of capability information includes the parameters of a guard band and the first transmission parameter of the terminal corresponding to this guard band.

[0114] Specifically, taking the first transmission parameter of the terminal including the uplink transmit power as an example, assuming there is a preset correspondence as shown in Table 3 above, which is predefined by the protocol or configured by the network-side device, and the maximum transmit power of the terminal is M, B < M < C, then the terminal reports a set of capability information, and this set of capability information includes: {Max Tx power = M, Guard band = X2} or {B < Max Tx power <= C, Guard band = X2}.

[0115] For the above-mentioned 4th case, the terminal can determine multiple guard bands according to multiple sets of capability information, and report the parameters of these multiple guard bands and the first transmission parameter of the terminal corresponding to these multiple guard bands to the network-side device through the first information.

[0116] For example, the terminal can report the first information according to multiple sets of different uplink transmit powers, RSRP, subcarrier spacing of the uplink / downlink, interference suppression performance indicators, transmission bandwidth of the uplink transmission / downlink transmission, and power type, as well as the association relationship between the guard bands of these first transmission parameters. The first information includes multiple sets of capability information, and each set of capability information includes the parameter of a guard band and the first transmission parameter of the terminal corresponding to this guard band.

[0117] Specifically, taking the first transmission parameter of the terminal including the uplink transmit power as an example, assuming there is a preset correspondence as shown in Table 3 above, which is predefined by the protocol or configured by the network-side device, the transmit power can be {M1, M2}, B < M1 < C, C < M2 < D, then the terminal reports 2 sets of capability information, and these 2 sets of capability information include: {Max Tx power = M1, Guard band = X2} and {Max Tx power = M2, Guard band = X3}; or, {B < Max Tx power <= C, Guard band = X2} and {C < Max Tx power <= D, Guard band = X3}.

[0118] Optionally, in the case where the terminal reports a set of capability information, the terminal can determine one of the guard bands in this set of capability information as the target guard band. At this time, the purpose of the terminal reporting this set of capability information is to expect the network-side device to schedule or allocate resources that conform to one of the guard bands (target guard band) in the first information for the terminal.

[0119] Optionally, when the terminal reports multiple sets of capability information, the terminal may select a guard band from multiple guard bands included in the multiple sets of capability information as the target guard band based on the terminal's current first transmission parameter and a preset correspondence, where the preset correspondence includes a correspondence between parameters of different guard bands and different first transmission parameters. In this case, the terminal reports these multiple sets of capability information in the hope that the network device will schedule or allocate resources for the terminal that comply with at least one of the multiple guard bands in the first information.

[0120] For example, the terminal may select an appropriate guard band as the target guard band for full-duplex transmission based on one or more of the current uplink transmit power, RSRP, uplink / downlink SCS, interference suppression performance index, uplink / downlink transmission bandwidth, and power type, as well as a preset correspondence relationship. The preset correspondence relationship includes a correspondence between one or more of the uplink transmit power, RSRP, uplink / downlink SCS, interference suppression performance index, uplink / downlink transmission bandwidth, and power type and parameters of different guard bands.

[0121] Accordingly, in one example, the network-side device can determine at least one guard band reported by the terminal based on the first information, and configure and / or schedule resources to the terminal based on the parameters of the at least one guard band. That is, the scheduling and / or resource allocation obtained by the terminal from the network-side device is completely determined based on the parameters of the guard band reported by the terminal. In another example, the network-side device determines the target guard band of the terminal based on the current first transmission parameter of the terminal and the capability information reported by the terminal, and schedules and / or configures resources to the terminal based on the parameters of the target guard band. That is, the scheduling and / or resource allocation obtained by the terminal from the network-side device is determined based on the UE's current actual uplink transmit power, RSRP, uplink / downlink SCS and other transmission parameters, as well as the guard band size reported by the terminal.

[0122] Accordingly, the method shown in FIG3A may further include: obtaining resources scheduled and / or allocated by the network side device according to at least one protection band in the first information. Alternatively, the method shown in FIG3A may further include: obtaining resources scheduled and / or allocated by the network side device according to the first protection band, wherein the first protection band is a protection band determined by the network side device for the terminal device based on the relevant parameter information currently actually used by the terminal device and the first information. Furthermore, the method shown in FIG3A may further include: receiving fourth information from the network side device, wherein the fourth information is used to configure the first protection as a target protection band for the terminal device.

[0123] Optionally, the bandwidth of the first guard band is greater than or equal to the bandwidth of any guard band included in the first information. In other words, the parameters of the first guard band configured by the network side device conform to the capability information reported by the terminal (the capability information in the first information).

[0124] Through the above-mentioned first implementation method, the terminal can determine the size of the target protection band based on UE capability information such as uplink transmission power, RSRP, SCS, and report its own capability information to the network, so that the network side equipment can configure the appropriate protection band size according to the capability information reported by the terminal, thereby improving resource utilization.

[0125] Second implementation method

[0126] The terminal determines the target protection band through the information configured or scheduled by the network side device.

[0127] Specifically, as shown in FIG3B , step 301 may include:

[0128] Step 3012: Receive second information from a network-side device, wherein the second information is used to indicate at least one parameter of at least one guard band and at least one of the first transmission parameters of the terminal corresponding to the at least one guard band.

[0129] Step 3013: Determine a target protection band according to the second information.

[0130] For specific information about the parameters of the guard band and the first transmission parameters of the terminal, please refer to the above description of the first implementation method, which will not be repeated here.

[0131] The second information is determined according to third information, and the third information includes the first information and / or the current status information of the terminal.

[0132] If the third information includes the first information, then before step 3012, the method may further include: reporting the first information to the network side device, wherein the first information includes one or more groups of capability information, a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band, and the first information is used to determine the at least one protection band.

[0133] The current status information of the terminal includes but is not limited to at least one of the following:

[0134] 1) Current uplink transmit power (Tx Power), for example, at least one of the current maximum uplink transmit power and the current actual uplink transmit power, specifically at least one of the current maximum uplink transmit power and the current actual uplink transmit power of the physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), sounding reference signal (SRS), or physical random access channel (PRACH);

[0135] 2) Current Reference Signal Received Power (RSRP), for example, the best or worst RSRP reported by the current reading cell of the terminal most recently or in the recent period, specifically RSRP measured based on the Synchronization Signal Block (SSB) or Channel State Information Reference Signal (CSI-RS), and can be RSRP measurement performed at the physical layer (L1) or RSRP measurement performed at the protocol layer (L3);

[0136] 3) Current subcarrier spacing SCS, for example, the SCS corresponding to the current DL BWP or UL BWP;

[0137] 4) Bandwidth information of the current uplink transmission, including bandwidth size and / or bandwidth location, where the uplink transmission bandwidth includes but is not limited to one or more of the following information: uplink channel bandwidth, uplink control channel bandwidth, uplink data channel bandwidth, frequency domain resource allocation of uplink reference signals, etc.;

[0138] 5) Bandwidth information of the current downlink transmission, including bandwidth size and / or location, where the downlink transmission bandwidth includes but is not limited to one or more of the downlink channel bandwidth, downlink control channel bandwidth, downlink data channel bandwidth, frequency domain resource allocation of the downlink reference signal, and the like.

[0139] In a case where the second information indicates a parameter of a guard band, step 3013 may specifically include: using the guard band indicated by the second information as a target guard band.

[0140] Among them, when the second information indicates parameters of multiple protection bands, step 3013 may specifically include: selecting a protection band from the multiple protection bands as the target protection band based on the current first transmission parameter of the terminal and the preset correspondence, wherein the preset correspondence includes the correspondence between the parameters of different protection bands and different first transmission parameters.

[0141] The preset corresponding relationship is determined by at least one of the following methods:

[0142] The protocol is predefined;

[0143] Network device configuration.

[0144] Through the above-mentioned second implementation method, the network side device can dynamically indicate at least one protection band to the terminal based on the first information and / or the current status information of the terminal, so that the terminal can select a suitable target protection band from it instead of using a fixed or pre-configured protection band, thereby improving resource utilization.

[0145] Third implementation method

[0146] The target protection zone is determined by combining the first embodiment and the second embodiment.

[0147] Specifically, as shown in FIG3C , step 301 may include:

[0148] Step 3014: Report first information to the network-side device, where the first information includes one or more sets of capability information, each set of capability information including a parameter of a guard band and at least one of a first transmission parameter of the terminal corresponding to the guard band.

[0149] Step 3012: Receive second information from a network-side device, wherein the second information is used to indicate at least one parameter of at least one guard band and at least one of the first transmission parameters of the terminal corresponding to the at least one guard band.

[0150] The second information is determined according to the first information and the current state information of the terminal.

[0151] It should be noted that the current status information of the terminal may be reported periodically by the terminal or not. For example, RSRP is generally reported periodically by the terminal, while the maximum uplink transmit power, SCS, uplink bandwidth and downlink bandwidth do not need to be reported by the terminal, and the network side equipment is already clear about them.

[0152] Step 3013: Determine a target protection band according to the second information.

[0153] For details about the parameters of the guard band, the first transmission parameters of the terminal, and the current status information of the terminal, please refer to the above description of the first and second implementation modes, which will not be repeated here.

[0154] Optionally, in the case where the second information indicates parameters of multiple protection bands, step 3013 may specifically include: selecting a protection band from the multiple protection bands as the target protection band based on the current first transmission parameter of the terminal and a preset correspondence, wherein the preset correspondence includes the correspondence between the parameters of different protection bands and different first transmission parameters.

[0155] It can be seen from the above three implementation methods that a protection band determination method provided in an embodiment of the present application can improve resource utilization because it can determine the target protection band between the uplink sub-band and the downlink sub-band when the terminal operates in full-duplex mode by transmitting target information, and the target transmission band is related to the capability information of the terminal, rather than using a fixed or pre-configured protection band.

[0156] The above describes the method for determining the guard band applied to the terminal side provided in the embodiment of the present application. The following describes the method for determining the guard band applied to the network side device.

[0157] As shown in FIG4 , a method for determining a guard band provided in an embodiment of the present application can be applied to a network-side device. The method may include:

[0158] Step 401: Transmit target information, wherein the target information is used to determine a target guard band, the target guard band being a guard band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target guard band being related to capability information of the terminal.

[0159] There are three specific implementations of the above step 401, which are described below one by one.

[0160] First implementation method

[0161] The target guard band is determined from the perspective of UE capability information reporting.

[0162] Specifically, as shown in FIG4A , step 401 may include:

[0163] Step 4011: Receive first information reported by the terminal, wherein the first information is used to indicate a target protection band, and the first information includes one or more groups of capability information, and a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

[0164] Optionally, a set of capability information may further include an association between the first transmission parameter of the terminal and a guard band.

[0165] Among them, regarding the parameters of the guard band, the specific content of the first transmission parameter of the terminal, how the terminal determines the first information and the specific content of the first information, please refer to the above and will not be repeated here.

[0166] Through the above-mentioned first implementation method, the terminal can determine the size of the target protection band based on the UE capability information and report its own capability information to the network, so that the network side equipment can configure the appropriate protection band size based on the capability information reported by the terminal, thereby improving resource utilization.

[0167] Second implementation method

[0168] The terminal determines the target protection band through the information configured or scheduled by the network side device.

[0169] Specifically, as shown in FIG4B , step 401 may include:

[0170] Step 4012: Send second information to the terminal, where the second information is used to indicate at least one parameter of at least one guard band and at least one of the first transmission parameters of the terminal corresponding to the at least one guard band.

[0171] Correspondingly, the terminal may determine the target guard band according to the second information.

[0172] Optionally, before step 4012, the at least one protection band is determined based on third information, wherein the third information includes first information and / or current status information of the terminal, the first information is reported by the terminal, and the first information includes one or more groups of capability information, and a group of capability information includes parameters of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

[0173] If the third information includes the first information, then before step 4012, the method may further include: receiving the first information reported by the terminal.

[0174] The current status information of the terminal includes but is not limited to at least one of the following:

[0175] 1) Current uplink transmit power (Tx Power), for example, at least one of the current maximum uplink transmit power and the current actual uplink transmit power, specifically at least one of the current maximum uplink transmit power and the current actual uplink transmit power of the physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), sounding reference signal (SRS), or physical random access channel (PRACH);

[0176] 2) Current Reference Signal Received Power (RSRP), for example, the best or worst RSRP reported by the current reading cell of the terminal most recently or in the recent period, specifically RSRP measured based on the Synchronization Signal Block (SSB) or Channel State Information Reference Signal (CSI-RS), and can be RSRP measurement performed at the physical layer (L1) or RSRP measurement performed at the protocol layer (L3);

[0177] 3) Current subcarrier spacing SCS, for example, the SCS corresponding to the current DL BWP or UL BWP;

[0178] 4) Bandwidth information of the current uplink transmission, including bandwidth size and / or bandwidth location, where the uplink transmission bandwidth includes but is not limited to one or more of the following information: uplink channel bandwidth, uplink control channel bandwidth, uplink data channel bandwidth, frequency domain resource allocation of uplink reference signals, etc.;

[0179] 5) Bandwidth information of the current downlink transmission, including bandwidth size and / or location, where the downlink transmission bandwidth includes but is not limited to one or more of the downlink channel bandwidth, downlink control channel bandwidth, downlink data channel bandwidth, frequency domain resource allocation of the downlink reference signal, and the like.

[0180] Several examples of determining the at least one guard band according to the third information are given below. Of course, the present invention is not limited to these examples, and those skilled in the art can also develop other examples based on these examples.

[0181] In the first example, when the first information includes multiple sets of capability information, and the multiple sets of capability information contain parameters of multiple guard bands corresponding to multiple uplink transmission powers, the at least one guard band is determined according to the current maximum uplink transmission power or the current actual uplink transmission power of the terminal.

[0182] For example, when the terminal reports capability information corresponding to multiple different uplink transmission powers, the guard band is determined according to the current maximum uplink transmission power of the terminal or the current actual transmission power of the uplink channel (PUSCH, PUCCH, SRS or PRACH).

[0183] Specifically, taking the first transmission parameter of the terminal as the uplink transmission power as an example, assuming there is a preset correspondence shown in Table 4 below, which is predefined by the protocol or configured by the network-side device, and the terminal reports two sets of capability information: {Guard band = X2, Guard band = X3}. Then, when the uplink transmission power of the terminal can be {M1, M2}, and the current actual transmission power of the terminal is M1, B < M1 < C, the network-side device determines the guard band corresponding to the UE capability as X2 according to the current actual transmission power of the terminal; when the current actual transmission power of the terminal is M2, C < M2 < D, the network-side device determines the guard band corresponding to the UE capability as X3 according to the current actual transmission power of the terminal.

[0184] The network-side device notifies the UE of the parameters of this guard band through configuration signaling or dynamic signaling.

[0185] Table 4

[0186] In Table 4, Tx power can be the maximum transmission power or the actual transmission power, and Max Tx power represents the maximum uplink transmission power of the terminal.

[0187] The target guard band is determined according to the current actual Tx power of one or more of PUSCH, PUCCH, SRS and PRACH. Among them, PUSCH can include DG PUSCH, CG PUSCH, Msg3 or MsgA PUSCH.

[0188] Specific method:

[0189] When the Tx power is large, the self-interference caused is relatively large, so a larger guard band is required to isolate the interference between transmission and reception.

[0190] When the Tx power is small, the self-interference caused is relatively small, so a smaller guard band can be used to isolate the interference between transmission and reception. Beneficial effects:

[0191] Determine the target guard band according to the Tx power. When the Tx power is relatively large, use a larger guard band to isolate the interference between transmission and reception, which can reduce the interference. When the Tx power is relatively small, use a smaller guard band to isolate the interference between transmission and reception, which can improve the resource utilization rate. As shown in Figure 5, if P1 is less than P2, then when the current actual uplink transmission power is P1, use the smaller GB1 to improve the resource utilization rate; when the current actual uplink transmission power is P2, use the larger GB2 to better isolate the interference between transmission and reception, thereby reducing the interference.

[0192] In the second example, when the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple guard bands corresponding to multiple RSRPs, determine the at least one guard band according to the RSRP reported by the terminal most recently or within a recent period of time.

[0193] For example, when the terminal reports capability information corresponding to multiple different RSRPs, determine the guard band according to the L1 or L3 RSRP reported by the terminal most recently, or the RSRP statistically over a long term.

[0194] Specifically, taking the first transmission parameter of the terminal including RSRP as an example, assume there is a preset correspondence shown in Table 5 below. This preset correspondence is predefined by the protocol or configured by the network-side device. The terminal reports two sets of capability information: {Guard band = X2, Guard band = X3}. Then, when the RSRP of the terminal can be {N1, N2}, and the RSRP currently reported by the terminal is N1, B'<N1<C', the network-side device determines the guard band corresponding to the UE capability as X2 according to the RSRP currently reported by the terminal; when the current actual transmission power of the terminal is N2, C'<N2<D', the network-side device determines the guard band corresponding to the UE capability as X3 according to the RSRP currently reported by the terminal.

[0195] The network-side device notifies the UE of the parameters of this guard band through configuration signaling or dynamic signaling.

[0196] Table 5

[0197] Among them, the RSRP can be the RSRP measured based on the SSB or the RSRP measured based on the CSI-RS.

[0198] Specific method:

[0199] When the RSRP is relatively high, it means that the terminal may be relatively close to the base station. Therefore, the uplink transmission can be carried out with a relatively small Tx power, and the self-interference caused will be relatively small. Therefore, a smaller guard band can be used to isolate the interference between transmission and reception.

[0200] When RSRP is low, it means that the terminal may be far away from the base station. Therefore, uplink transmission requires a larger Tx power, which will cause greater self-interference. Therefore, a larger protection band is needed to isolate the interference between the transmitter and the receiver.

[0201] Beneficial effects

[0202] The target guard band is determined based on RSRP. When RSRP is low, a larger guard band is used to isolate the interference between the transmitter and receiver, thereby reducing interference. When RSRP is high, a smaller guard band is used to isolate the interference between the transmitter and receiver, thereby improving resource utilization.

[0203] In a third example, when the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple protection bands corresponding to multiple uplink transmit powers and multiple RSRPs, the at least one protection band is determined based on the current maximum uplink transmit power or the current actual uplink transmit power of the terminal, and the RSRP reported by the terminal for the most recent time or in the most recent period of time.

[0204] In the fourth example, when the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple protection bands corresponding to multiple SCSs and multiple RSRPs, the at least one protection band is determined based on the current SCS of the terminal and the RSRP reported by the terminal for the most recent time or in the most recent period, and so on.

[0205] Correspondingly, on the terminal side, when the second information indicates the parameters of a protection band, the protection band indicated by the second information can be used as the target protection band; when the second information indicates the parameters of multiple protection bands, a protection band can be selected from the multiple protection bands as the target protection band based on the current first transmission parameter of the terminal and the preset correspondence, wherein the preset correspondence includes the correspondence between the parameters of different protection bands and different first transmission parameters.

[0206] The preset corresponding relationship is determined by at least one of the following methods:

[0207] The protocol is predefined;

[0208] Network device configuration.

[0209] Through the above-mentioned second implementation method, the network side device can determine the second information based on the first information and / or the current status information of the terminal, and dynamically indicate at least one protection band to the terminal through the second information, so that the terminal can select a suitable target protection band from it, instead of using a fixed or pre-configured protection band, thereby improving resource utilization.

[0210] Third implementation method

[0211] The target protection zone is determined by combining the first embodiment and the second embodiment.

[0212] Specifically, as shown in FIG4C , step 401 may include:

[0213] Step 4013: Receive first information reported by the terminal, wherein the first information includes one or more sets of capability information, and a set of capability information includes a parameter of a guard band and at least one of a first transmission parameter of the terminal corresponding to the guard band;

[0214] Step 4012: Send second information to the terminal, where the second information is used to indicate at least one parameter of at least one guard band and at least one of the first transmission parameters of the terminal corresponding to the at least one guard band.

[0215] The second information is determined according to the first information and the current state information of the terminal.

[0216] It should be noted that the current status information of the terminal may be reported periodically by the terminal or not. For example, RSRP is generally reported periodically by the terminal, while the maximum uplink transmit power, SCS, uplink bandwidth and downlink bandwidth do not need to be reported by the terminal, and the network side equipment is already clear about them.

[0217] On the terminal side, the target protection band may be determined according to the second information.

[0218] For details about the parameters of the guard band, the first transmission parameters of the terminal, and the current status information of the terminal, please refer to the above description of the first and second implementation modes, which will not be repeated here.

[0219] As can be seen from the three aforementioned implementations, the method for determining a guard band provided in the embodiments of the present application can improve resource utilization by determining the target guard band between the uplink sub-band and the downlink sub-band when the terminal operates in full-duplex mode, using transmission target information, and the target transmission band is related to the capability information of the terminal, rather than using a fixed or pre-configured guard band. The above describes a method for determining a guard band provided in the embodiments of the present application.

[0220] Optionally, in this embodiment of the present application, the first information may be carried by one of the following:

[0221] Uplink Control Information (UCI);

[0222] Media Access Control Element (MAC Control Element, MAC CE);

[0223] Radio Resource Control (RRC) message.

[0224] Optionally, in this embodiment of the present application, the resource carrying the first information includes one of the following:

[0225] Physical Uplink Control Channel (PUCCH), which can be an independently configured PUCCH resource or a PUCCH multiplexed with other UCI (such as HARQ-ACK, CSI, SR);

[0226] The physical uplink shared channel (PUSCH) can be a PUSCH of dynamic scheduling (DG) or a PUSCH of semi-static scheduling (CG).

[0227] Optionally, in this embodiment of the present application, the second information may be carried by one of the following:

[0228] Downlink control information DCI;

[0229] Media Access Control Element MAC CE;

[0230] Radio Resource Control Protocol RRC message.

[0231] It should be noted that the guard band determination method provided in the embodiment of the present application can be executed by a communication device. In the embodiment of the present application, the communication device provided in the embodiment of the present application is described by taking the execution of the guard band determination method by the communication device as an example.

[0232] The following describes a communication device provided in an embodiment of the present application in conjunction with the accompanying drawings. Since the communication device provided in an embodiment of the present application corresponds to a method for determining a guard band provided in an embodiment of the present application, the description of the communication device provided in an embodiment of the present application is relatively brief. For details, please refer to the description of the method embodiment above.

[0233] As shown in FIG6 , an embodiment of the present application provides a communication device 600 , which can be applied to a terminal. The device 600 may include a transmission module 601 .

[0234] The transmission module 601 is used to transmit target information, wherein the target information is used to determine a target protection band, which is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

[0235] The full-duplex mode includes but is not limited to FDD or SBFD and other duplex modes.

[0236] The transmission module 601 may have three specific implementations, which are described below one by one.

[0237] First implementation method

[0238] The target guard band is determined from the perspective of UE capability information reporting.

[0239] Specifically, as shown in FIG6A , the transmission module 601 may include:

[0240] The sending submodule 6011 is used to report first information to the network side device, wherein the first information is used to indicate the target protection band, and the first information includes one or more groups of capability information, and a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

[0241] It should be noted that a guard band in a set of capability information reported by the terminal may be applicable to a single carrier, multiple carriers, a band, multiple bands, or a frequency range, etc., where the frequency range may include but is not limited to FR1, FR2-1, or FR2-2, etc., where FR = frequency range.

[0242] For specific information about the parameters of the guard band and the first transmission parameters of the terminal, please refer to the above description of the method embodiment, which will not be repeated here.

[0243] As an example, if the terminal reports a set of capability information, the sending submodule 6011 may be specifically configured to determine a set of capability information according to a set of first transmission parameters, and report the set of capability information through the first information.

[0244] As another example, if the terminal reports multiple sets of capability information, the sending submodule 6011 may be specifically configured to determine multiple sets of capability information based on multiple sets of first transmission parameters, and report the multiple sets of capability information via the first information. The terminal reports multiple sets of capability information because it can support the use of different protection bands to mitigate interference based on different situations. This improves flexibility, allowing the network-side device or the terminal to flexibly select appropriate protection bands to improve transmission efficiency.

[0245] It can be understood that since the first information may include one or more sets of capability information, and a set of capability information may include a parameter of a guard band and at least one of the first transmission parameters of the terminal corresponding to the guard band, the information contained in the first information reported by the terminal device may include the following four situations:

[0246] 1) A guard band parameter;

[0247] 2) Parameters of multiple guard bands;

[0248] 3) a parameter of a guard band, and a first transmission parameter of the terminal corresponding to the guard band;

[0249] 4) Parameters of multiple guard bands, and first transmission parameters of the terminal corresponding to the multiple guard bands.

[0250] For the above-mentioned situation 1), the sending submodule 6011 may determine a guard band according to a set of capability information, and report the parameters of the guard band to the network-side device through the first information.

[0251] For the above-mentioned situation 2), the sending submodule 6011 may determine multiple guard bands according to multiple sets of capability information, and report the parameters of the multiple guard bands to the network-side device through the first information.

[0252] For the above-mentioned case 3), the sending submodule 6011 may determine a guard band according to a set of capability information, and report the parameters of the guard band and the first transmission parameter of the terminal corresponding to the guard band to the network side device through the first information.

[0253] For the above-mentioned situation 4), the sending submodule 6011 can determine multiple protection bands based on multiple sets of capability information, and report the parameters of these multiple protection bands and the first transmission parameters of the terminal corresponding to these multiple protection bands to the network side device through the first information.

[0254] Optionally, the communication device 600 may further include: a guard band determination module configured to, when the terminal reports multiple sets of capability information, enable the terminal to select a guard band from multiple guard bands included in the multiple sets of capability information as the target guard band based on the terminal's current first transmission parameter and a preset correspondence, wherein the preset correspondence includes a correspondence between parameters of different guard bands and different first transmission parameters. In this case, the terminal reports these multiple sets of capability information in order to expect the network-side device to schedule or allocate resources for the terminal that conform to at least one of the multiple guard bands in the first information.

[0255] Accordingly, in one example, the network-side device can determine at least one guard band reported by the terminal based on the first information, and configure and / or schedule resources to the terminal based on the parameters of the at least one guard band. That is, the scheduling and / or resource allocation obtained by the terminal from the network-side device is completely determined based on the parameters of the guard band reported by the terminal. In another example, the network-side device determines the target guard band of the terminal based on the current first transmission parameter of the terminal and the capability information reported by the terminal, and schedules and / or configures resources to the terminal based on the parameters of the target guard band. That is, the scheduling and / or resource allocation obtained by the terminal from the network-side device is determined based on the UE's current actual uplink transmit power, RSRP, uplink / downlink SCS and other transmission parameters, as well as the guard band size reported by the terminal.

[0256] Accordingly, the communication device 600 shown in FIG6 may further include: a resource acquisition module for acquiring resources scheduled and / or allocated by the network-side device according to at least one protection band in the first information, or for acquiring resources scheduled and / or allocated by the network-side device according to a first protection band, wherein the first protection band is a protection band determined by the network-side device for the terminal device according to the relevant parameter information currently actually used by the terminal device and the first information. Furthermore, the communication device 600 shown in FIG6 may further include: a receiving module for receiving fourth information from the network-side device, wherein the fourth information is used to configure the first protection as a target protection band for the terminal device.

[0257] Optionally, the bandwidth of the first guard band is greater than or equal to the bandwidth of any guard band included in the first information. In other words, the parameters of the first guard band configured by the network side device conform to the capability information reported by the terminal (the capability information in the first information).

[0258] Through the above-mentioned first implementation method, the terminal can determine the size of the target protection band based on UE capability information such as uplink transmission power, RSRP, SCS, and report its own capability information to the network, so that the network side equipment can configure the appropriate protection band size according to the capability information reported by the terminal, thereby improving resource utilization.

[0259] Second implementation method

[0260] The terminal determines the target protection band through the information configured or scheduled by the network side device.

[0261] Specifically, as shown in FIG6B , the transmission module 601 may include:

[0262] The receiving submodule 6012 is configured to receive second information from a network-side device, wherein the second information is used to indicate at least one of a parameter of at least one guard band and a first transmission parameter of the terminal corresponding to the at least one guard band.

[0263] The determination submodule 6013 is configured to determine a target guard band according to the second information.

[0264] For specific information about the parameters of the guard band and the first transmission parameters of the terminal, please refer to the above description of the method embodiment, which will not be repeated here.

[0265] The second information is determined according to third information, and the third information includes the first information and / or the current status information of the terminal.

[0266] If the third information includes the first information, the transmission module 601 may also include: a sending submodule, used to report the first information to the network side device, wherein the first information includes one or more groups of capability information, a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band, and the first information is used to determine the at least one protection band.

[0267] For the specific content of the current status information of the terminal, please refer to the above description of the method embodiment, which will not be repeated here.

[0268] Wherein, in a case where the second information indicates a parameter of a guard band, the determination submodule 6013 may be specifically configured to: use the guard band indicated by the second information as a target guard band.

[0269] Among them, when the second information indicates the parameters of multiple protection bands, the determination submodule 6013 can be specifically used to: select a protection band from the multiple protection bands as the target protection band based on the current first transmission parameter of the terminal and the preset correspondence, wherein the preset correspondence includes the correspondence between the parameters of different protection bands and different first transmission parameters.

[0270] Through the above-mentioned second implementation method, the network side device can dynamically indicate at least one protection band to the terminal based on the first information and / or the current status information of the terminal, so that the terminal can select a suitable target protection band from it instead of using a fixed or pre-configured protection band, thereby improving resource utilization.

[0271] Third implementation method

[0272] The target protection zone is determined by combining the first embodiment and the second embodiment.

[0273] Specifically, as shown in FIG6C , the transmission module 601 may include:

[0274] The sending submodule 6014 is configured to report first information to the network-side device, wherein the first information includes one or more sets of capability information, each set of capability information including a parameter of a guard band and at least one of a first transmission parameter of the terminal corresponding to the guard band, and the first information is used to determine the at least one guard band.

[0275] The receiving submodule 6012 is configured to receive second information from a network-side device, wherein the second information is used to indicate at least one of a parameter of at least one guard band and a first transmission parameter of the terminal corresponding to the at least one guard band.

[0276] The determination submodule 6013 is configured to determine a target guard band according to the second information.

[0277] The second information is determined according to the first information and the current state information of the terminal.

[0278] It should be noted that the current status information of the terminal may be reported periodically by the terminal or not. For example, RSRP is generally reported periodically by the terminal, while the maximum uplink transmit power, SCS, uplink bandwidth and downlink bandwidth do not need to be reported by the terminal, and the network side equipment is already clear about them.

[0279] For details about the parameters of the guard band, the first transmission parameters of the terminal, and the current status information of the terminal, please refer to the above description of the method embodiment, which will not be repeated here.

[0280] Optionally, in the case where the second information indicates parameters of multiple protection bands, the determination submodule 6013 can be specifically used to: select a protection band from the multiple protection bands as the target protection band based on the current first transmission parameter of the terminal and a preset correspondence, wherein the preset correspondence includes the correspondence between the parameters of different protection bands and different first transmission parameters.

[0281] It can be seen from the above three implementation methods that a communication device 600 provided in an embodiment of the present application can improve resource utilization because it can determine the target protection band between the uplink sub-band and the downlink sub-band when the terminal operates in full-duplex mode by transmitting target information, and the target transmission band is related to the capability information of the terminal, rather than using a fixed or pre-configured protection band.

[0282] It should be noted that the device shown in FIG6 can implement the method shown in FIG3 and can achieve the same technical effect, so the description is relatively simple. For relevant details, please refer to the description of the embodiment shown in FIG3 above.

[0283] As shown in FIG. 7 , an embodiment of the present application provides a communication device 700 , which can be applied to a network-side device. The device 700 may include a transmission module 701 .

[0284] The transmission module 701 is used to transmit target information, wherein the target information is used to determine a target protection band, which is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

[0285] The full-duplex mode includes but is not limited to FDD or SBFD and other duplex modes.

[0286] The transmission module 701 may have three specific implementations, which are described below one by one.

[0287] First implementation method

[0288] The target guard band is determined from the perspective of UE capability information reporting.

[0289] Specifically, as shown in FIG7A , the transmission module 701 may include:

[0290] The receiving submodule 7011 receives the first information reported by the terminal, wherein the first information is used to indicate the target protection band, and the first information includes one or more groups of capability information, and a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

[0291] Optionally, a set of capability information may further include an association between the first transmission parameter of the terminal and a guard band.

[0292] Among them, regarding the parameters of the guard band, the specific content of the first transmission parameter of the terminal, how the terminal determines the first information and the specific content of the first information, please refer to the above and will not be repeated here.

[0293] Through the above-mentioned first implementation method, the terminal can determine the size of the target protection band based on the UE capability information and report its own capability information to the network, so that the network side equipment can configure the appropriate protection band size based on the capability information reported by the terminal, thereby improving resource utilization.

[0294] Second implementation method

[0295] The terminal determines the target protection band through the information configured or scheduled by the network side device.

[0296] Specifically, as shown in FIG7B , the transmission module 701 may include:

[0297] The sending submodule 7012 is configured to send second information to the terminal, wherein the second information is used to indicate at least one of a parameter of at least one guard band and a first transmission parameter of the terminal corresponding to the at least one guard band.

[0298] Correspondingly, the terminal may determine the target guard band according to the second information.

[0299] Optionally, the device 700 may also include: a determination module, used to determine the at least one protection band based on third information before sending the second information to the terminal, wherein the third information includes the first information and / or the current status information of the terminal, the first information is reported by the terminal, the first information includes one or more groups of capability information, and a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

[0300] If the third information includes the first information, the transmission module may further include: a receiving submodule, configured to receive the first information reported by the terminal.

[0301] Several examples of determining the at least one guard band according to the third information are given below. Of course, the present invention is not limited to these examples, and those skilled in the art can also develop other examples based on these examples.

[0302] In the first example, when the first information includes multiple sets of capability information, and the multiple sets of capability information contain parameters of multiple protection bands corresponding to multiple uplink transmission powers, the at least one protection band is determined based on the current maximum uplink transmission power or the current actual uplink transmission power of the terminal.

[0303] In the second example, when the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple protection bands corresponding to multiple RSRPs, the at least one protection band is determined based on the RSRP reported by the terminal most recently or in the most recent period of time.

[0304] In a third example, when the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple protection bands corresponding to multiple uplink transmit powers and multiple RSRPs, the at least one protection band is determined based on the current maximum uplink transmit power or the current actual uplink transmit power of the terminal, and the RSRP reported by the terminal for the most recent time or in the most recent period of time.

[0305] In the fourth example, when the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple protection bands corresponding to multiple SCSs and multiple RSRPs, the at least one protection band is determined based on the current SCS of the terminal and the RSRP reported by the terminal for the most recent time or in the most recent period, and so on.

[0306] Correspondingly, on the terminal side, when the second information indicates the parameters of a protection band, the protection band indicated by the second information can be used as the target protection band; when the second information indicates the parameters of multiple protection bands, a protection band can be selected from the multiple protection bands as the target protection band based on the current first transmission parameter of the terminal and the preset correspondence, wherein the preset correspondence includes the correspondence between the parameters of different protection bands and different first transmission parameters.

[0307] The preset corresponding relationship is determined by at least one of the following methods:

[0308] The protocol is predefined;

[0309] Network device configuration.

[0310] Through the above-mentioned second implementation method, the network side device can determine the second information based on the first information and / or the current status information of the terminal, and dynamically indicate at least one protection band to the terminal through the second information, so that the terminal can select a suitable target protection band from it, instead of using a fixed or pre-configured protection band, thereby improving resource utilization.

[0311] Third implementation method

[0312] The target protection zone is determined by combining the first embodiment and the second embodiment.

[0313] Specifically, as shown in FIG7C , the transmission module 701 may include:

[0314] a receiving submodule 7013, configured to receive first information reported by a terminal, wherein the first information includes one or more sets of capability information, wherein a set of capability information includes a parameter of a guard band and at least one of a first transmission parameter of the terminal corresponding to the guard band;

[0315] The sending submodule 7012 is configured to send second information to the terminal, wherein the second information is used to indicate at least one of a parameter of at least one guard band and a first transmission parameter of the terminal corresponding to the at least one guard band.

[0316] The second information is determined according to the first information and the current state information of the terminal.

[0317] It should be noted that the current status information of the terminal may be reported periodically by the terminal or not. For example, RSRP is generally reported periodically by the terminal, while the maximum uplink transmit power, SCS, uplink bandwidth and downlink bandwidth do not need to be reported by the terminal, and the network side equipment is already clear about them.

[0318] On the terminal side, the target protection band may be determined according to the second information.

[0319] For details about the parameters of the guard band, the first transmission parameters of the terminal, and the current status information of the terminal, please refer to the above description of the first and second implementation modes, which will not be repeated here.

[0320] As can be seen from the three aforementioned implementations, the method for determining a guard band provided in the embodiments of the present application can improve resource utilization by determining the target guard band between the uplink sub-band and the downlink sub-band when the terminal operates in full-duplex mode, using transmission target information, and the target transmission band is related to the capability information of the terminal, rather than using a fixed or pre-configured guard band. The above describes a method for determining a guard band provided in the embodiments of the present application.

[0321] It should be noted that the device shown in FIG. 7 can implement the method shown in FIG. 4 and achieve the same technical effect, so the description is relatively simple. For relevant details, please refer to the description of the embodiment shown in FIG. 4 above.

[0322] It should be noted that the communication device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0323] Optionally, as shown in Figure 8, an embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802, wherein the memory 802 stores a program or instruction that can be run on the processor 801. For example, when the communication device 800 is a terminal, the program or instruction, when executed by the processor 801, implements the various steps of the above-mentioned embodiment of the method for determining the guard band, and can achieve the same technical effect. When the communication device 800 is a network-side device, the program or instruction, when executed by the processor 801, implements the various steps of the above-mentioned embodiment of the method for determining the guard band, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0324] An embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface being configured to transmit target information, wherein the target information is used to determine a target protection band, the target protection band being a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band being related to the terminal's capability information. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 9 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0325] The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909 and at least some of the components of the processor 910.

[0326] Those skilled in the art will appreciate that the terminal 900 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 910 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG9 does not constitute a limitation of the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0327] It should be understood that in an embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042, and the graphics processor 9041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes a touch panel 9071 and at least one of other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0328] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 901 may transmit the data to the processor 910 for processing. Furthermore, the RF unit 901 may send uplink data to the network-side device. Typically, the RF unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0329] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 909 may include a volatile memory or a non-volatile memory, or the memory 909 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 909 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0330] Processor 910 may include one or more processing units. Optionally, processor 910 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 910.

[0331] Among them, the radio frequency unit 901 is used to transmit target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

[0332] In an embodiment of the present application, since the terminal 900 can determine the target protection band between the uplink sub-band and the downlink sub-band when the terminal operates in full-duplex mode by transmitting target information, and the target transmission band is related to the capability information of the terminal, rather than using a fixed or pre-configured protection band, resource utilization can be improved.

[0333] An embodiment of the present application also provides a network-side device, including a processor and a communication interface, the communication interface being configured to transmit target information, wherein the target information is used to determine a target protection band, the target protection band being a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band being related to the terminal's capability information. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0334] Specifically, an embodiment of the present application also provides a network-side device. As shown in Figure 10, the network-side device 1000 includes: an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004, and a memory 1005. Antenna 1001 is connected to radio frequency device 1002. In the uplink direction, radio frequency device 1002 receives information via antenna 1001 and sends the received information to baseband device 1003 for processing. In the downlink direction, baseband device 1003 processes the information to be transmitted and sends it to radio frequency device 1002. Radio frequency device 1002 processes the received information and sends it through antenna 1001.

[0335] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1003 , which includes a baseband processor.

[0336] The baseband device 1003 may, for example, include at least one baseband board, on which multiple chips are arranged, as shown in Figure 10, one of which is, for example, a baseband processor, which is connected to the memory 1005 through a bus interface to call the program in the memory 1005 and execute the network device operations shown in the above method embodiment.

[0337] The network side device may further include a network interface 1006, which is, for example, a common public radio interface (CPRI).

[0338] Specifically, the network side device 10000 of an embodiment of the present invention also includes: instructions or programs stored in the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute the methods executed by the modules shown in FIG7 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0339] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned protection band determination method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0340] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0341] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned protection band determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0342] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0343] An embodiment of the present application further provides a computer program / program product, which is stored in a non-volatile storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned embodiment of the protection band determination method, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0344] An embodiment of the present application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the guard band determination method as described in Figure 3, and the network-side device can be used to execute the steps of the guard band determination method as described in Figure 4.

[0345] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0346] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0347] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A method for determining a guard band, applied to a terminal, the method comprising: Transmission target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to capability information of the terminal.

2. The method according to claim 1, characterized in that: The target information includes first information, wherein the transmission target information includes: Reporting first information to a network side device, wherein the first information is used to indicate a target protection band, the first information includes one or more groups of capability information, a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

3. The method according to claim 2, wherein: The reporting of the first information to the network side device includes: A set of capability information is determined according to a set of first transmission parameters, and the set of capability information is reported through first information.

4. The method according to claim 3, wherein: The method further comprises: A guard band included in the set of capability information is determined as the target guard band.

5. The method according to claim 2, wherein: The reporting of the first information to the network side device includes: A plurality of groups of capability information are determined according to the plurality of groups of first transmission parameters, and the plurality of groups of capability information are reported through the first information.

6. The method according to claim 5, wherein: The method further comprises: According to the current first transmission parameter of the terminal and a preset correspondence, a guard band is selected from the multiple guard bands included in the multiple groups of capability information as the target guard band, wherein the preset correspondence includes a correspondence between parameters of different guard bands and different first transmission parameters.

7. The method according to claim 1, wherein: The target information includes second information, wherein the transmission target information includes: receiving second information from a network-side device, wherein the second information is used to indicate at least one of a parameter of at least one guard band and a first transmission parameter of the terminal corresponding to the at least one guard band; A target guard band is determined according to the second information.

8. The method according to claim 7, wherein: Before receiving the second information from the network side device, the method further includes: Report first information to the network side device, wherein the first information includes one or more groups of capability information, a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band, and the first information is used to determine the at least one protection band.

9. The method according to claim 7, wherein: In a case where the second information indicates parameters of a plurality of guard bands, determining a target guard band according to the second information includes: According to the current first transmission parameter of the terminal and a preset correspondence relationship, a guard band is selected from the multiple guard bands as a target guard band, wherein the preset correspondence relationship includes a correspondence relationship between parameters of different guard bands and different first transmission parameters.

10. The method according to any one of claims 2 to 9, wherein: The parameters of a guard band include: the bandwidth size of the guard band and / or the frequency domain position of the guard band.

11. The method according to any one of claims 2 to 9, wherein: The first transmission parameter of the terminal includes one or more of the following: Uplink transmit power; Reference signal received power RSRP; Subcarrier spacing SCS; Interference suppression performance indicators; Uplink transmission bandwidth; Downlink transmission bandwidth; Power type; UE type.

12. A method for determining a guard band, applied to a network side device, the method comprising: Transmission target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

13. The method according to claim 12, wherein: The target information includes first information, wherein the transmission target information includes: The first information reported by the receiving terminal is used to indicate a target protection band, and the first information includes one or more groups of capability information, and a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

14. The method according to claim 12, wherein: The target information includes second information, wherein the transmission target information includes: Second information is sent to the terminal, wherein the second information is used to indicate at least one of a parameter of at least one guard band and a first transmission parameter of the terminal corresponding to the at least one guard band.

15. The method according to claim 14, wherein: Before sending the second information to the terminal, the method further includes: Determine the at least one protection band based on third information, wherein the third information includes first information and / or current status information of the terminal, the first information is reported by the terminal, the first information includes one or more groups of capability information, a group of capability information includes a parameter of a protection band and at least one of the first transmission parameters of the terminal corresponding to the protection band.

16. The method according to claim 15, wherein: The third information includes the first information, and before sending the second information to the terminal, the method further includes: Receive the first information reported by the terminal.

17. The method according to claim 15, wherein: The current status information includes at least one of the following: Current uplink transmit power; Current reference signal received power RSRP; Current subcarrier spacing SCS; Current uplink transmission bandwidth information; Current downlink transmission bandwidth information.

18. The method according to claim 17, wherein: The current uplink transmit power includes: at least one of the current maximum uplink transmit power and the current actual uplink transmit power; The current RSRP includes: the RSRP reported by the terminal most recently or in a recent period of time; The current SCS includes the SCS corresponding to the current uplink bandwidth part BWP and / or the current downlink bandwidth part BWP; The bandwidth information includes: bandwidth size and / or bandwidth location.

19. The method according to claim 15, wherein: The determining of the at least one guard band according to the third information includes at least one of the following: In the case where the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple protection bands corresponding to multiple uplink transmit powers, according to the current maximum uplink transmit power of the terminal or the current The at least one guard band is determined by the actual transmission power; When the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple guard bands corresponding to multiple RSRPs, determining the at least one guard band according to the RSRP reported by the terminal most recently or in a recent period of time; In a case where the first information includes multiple sets of capability information, and the multiple sets of capability information include parameters of multiple guard bands corresponding to multiple uplink transmit powers and multiple RSRPs, determining the at least one guard band according to the current maximum uplink transmit power or the current actual uplink transmit power of the terminal, and the RSRP reported by the terminal most recently or in a recent period of time; When the first information includes multiple groups of capability information, and the multiple groups of capability information contain parameters of multiple protection bands corresponding to multiple SCSs and multiple RSRPs, the at least one protection band is determined based on the current SCS of the terminal and the RSRP reported by the terminal most recently or in a recent period of time.

20. The method according to any one of claims 12 to 19, wherein: The parameters of a guard band include: the bandwidth size of the guard band and / or the frequency domain position of the guard band.

21. The method according to any one of claims 12 to 19, wherein: The first transmission parameter of the terminal includes one or more of the following: Uplink transmit power; Reference signal received power RSRP; Subcarrier spacing SCS; Interference suppression performance indicators; Uplink transmission bandwidth; Downlink transmission bandwidth; Power type; UE type.

22. A device for determining a guard band, applied to a terminal, the device comprising: A transmission module is used to transmit target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

23. A guard band determination device, applied to a network side device, comprising: A transmission module is used to transmit target information, wherein the target information is used to determine a target protection band, the target protection band is a protection band between an uplink subband and a downlink subband when the terminal operates in full-duplex mode, and the target protection band is related to the capability information of the terminal.

24. A terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for determining a guard band according to any one of claims 1 to 11 are implemented.

25. A network side device, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the guard band determination method according to any one of claims 12 to 21 are implemented.

26. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the method for determining a guard band according to any one of claims 1 to 11, or implements the steps of the method for determining a guard band according to any one of claims 12 to 21.

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