Information transmission method and apparatus, communication apparatus, and storage medium

Abstract

This disclosure relates to the field of communication technology, specifically to information transmission methods, apparatuses, communication devices, and storage media. The information transmission method includes: determining, according to network device instructions, whether one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit are used for information transmission, wherein the first and second time domain units overlap. According to this disclosure, a terminal can determine, according to network device instructions, whether one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit are used for information transmission. Therefore, when a guard band is used for information transmission, information can be transmitted on the guard band without always prohibiting information transmission on the guard band. This improves resource utilization and ensures good performance of the communication system.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to information transmission methods, information transmission devices, information transmission systems, communication devices, and computer-readable storage media. Background Technology

[0002] When network devices communicate with terminals, self-interference can occur during uplink and downlink transmissions in certain situations. To mitigate this problem, a guard band can be configured in the frequency domain. However, configuring a guard band presents some challenges. Summary of the Invention

[0003] The embodiments of this disclosure provide information transmission methods, information transmission devices, information transmission systems, communication devices, and computer-readable storage media to solve technical problems in the related art.

[0004] According to a first aspect of the present disclosure, an information transmission method is proposed, executed by a terminal, the method comprising: determining, according to an instruction from a network device, whether one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit are used for information transmission, wherein the first time domain unit and the second time domain unit overlap.

[0005] According to a second aspect of the present disclosure, an information transmission method is proposed, executed by a terminal, the method comprising: determining one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit for transmitting information, according to instructions from a network device, wherein the first time domain unit and the second time domain unit overlap.

[0006] According to a third aspect of the present disclosure, an information transmission method is provided, performed by a network device, the method comprising: indicating whether one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit of a terminal are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0007] According to a fourth aspect of the present disclosure, an information transmission method is provided, performed by a network device, the method comprising: instructing one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit of a terminal for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0008] According to a fifth aspect of the present disclosure, an information transmission apparatus is provided, the apparatus comprising: a processing module configured to determine, according to a network device instruction, whether one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0009] According to a sixth aspect of the present disclosure, an information transmission apparatus is provided, the apparatus comprising: a processing module configured to determine, according to network device instructions, one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0010] According to a seventh aspect of the present disclosure, an information transmission apparatus is provided, the apparatus comprising: an indication module configured to indicate whether one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit of a terminal are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0011] According to an eighth aspect of the present disclosure, an information transmission apparatus is provided, the apparatus comprising: an indication module configured to indicate one or more guard bands between uplink resources of a first time domain unit and downlink resources of a second time domain unit for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0012] According to a ninth aspect of the present disclosure, an information transmission system is provided, including a terminal and a network device, wherein the terminal is configured to implement the information transmission method executed by the terminal described above, and the network device is configured to implement the information transmission method executed by the network device described above.

[0013] According to a tenth aspect of the present disclosure, a communication device is provided, comprising: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the above-described information transmission method executed by a terminal is implemented.

[0014] According to an eleventh aspect of the present disclosure, a communication device is provided, comprising: a processor; and a memory for storing a computer program; wherein, when the computer program is executed by the processor, the above-described information transmission method executed by a network device is implemented.

[0015] According to a twelfth aspect of the present disclosure, a computer-readable storage medium is provided for storing a computer program that, when executed by a processor, implements the information transmission method executed by a terminal as described above.

[0016] According to a thirteenth aspect of the present disclosure, a computer-readable storage medium is provided for storing a computer program that, when executed by a processor, implements the information transmission method performed by a network device as described above.

[0017] According to embodiments of this disclosure, a terminal can determine, based on instructions from a network device, whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission. Furthermore, if the guard bands are used for information transmission, information can be transmitted on the guard bands without always prohibiting information transmission on them. This improves resource utilization and ensures good performance of the communication system. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure.

[0020] Figure 2 This is a schematic flowchart illustrating another information transmission method according to embodiments of the present disclosure.

[0021] Figure 3 This is a schematic diagram illustrating a protection band according to an embodiment of the present disclosure.

[0022] Figure 4A This is a schematic diagram illustrating another protection band according to an embodiment of the present disclosure.

[0023] Figure 4B This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0024] Figure 5A This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0025] Figure 5B This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0026] Figure 5C This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0027] Figure 5D This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0028] Figure 6A This is a schematic diagram illustrating the structure of downlink control information according to an embodiment of the present disclosure.

[0029] Figure 6B This is a schematic diagram illustrating another structure of downlink control information according to an embodiment of the present disclosure.

[0030] Figure 7 This is a schematic flowchart illustrating another information transmission method according to embodiments of the present disclosure.

[0031] Figure 8 This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure.

[0032] Figure 9 This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure.

[0033] Figure 10 This is a schematic diagram illustrating the interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0034] Figure 11 This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure.

[0035] Figure 12 This is a schematic diagram illustrating another interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0036] Figure 13 This is a schematic block diagram of an information transmission device according to an embodiment of the present disclosure.

[0037] Figure 14 This is a schematic block diagram of an information transmission device according to an embodiment of the present disclosure.

[0038] Figure 15 This is a schematic block diagram of an information transmission device according to an embodiment of the present disclosure.

[0039] Figure 16 This is a schematic block diagram of an information transmission device according to an embodiment of the present disclosure.

[0040] Figure 17 This is a schematic block diagram illustrating an apparatus for information transmission according to embodiments of the present disclosure.

[0041] Figure 18 This is a schematic block diagram illustrating an apparatus for information transmission according to embodiments of the present disclosure. Detailed Implementation

[0042] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0043] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0044] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0045] For the sake of brevity and ease of understanding, this document uses the terms "greater than" or "less than", "higher than" or "lower than" to describe size relationships. However, it will be understood by those skilled in the art that the term "greater than" also includes the meaning of "greater than or equal to", and "less than" also includes the meaning of "less than or equal to"; the term "higher than" also includes the meaning of "higher than or equal to", and "lower than" also includes the meaning of "lower than or equal to".

[0046] In one embodiment, the network device can configure subbands for terminals in a semi-static time-domain unit. For example, a time-domain unit may include symbols, where the symbols can be Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0047] For example, network devices can configure uplink subbands for terminals within downlink symbols. Network devices can perform uplink communication within the uplink subbands of downlink symbols, and also downlink communication in frequency domain resources outside the uplink subbands of the frequency domain resources corresponding to the downlink symbol (e.g., the active bandwidth part (BWP)), thereby enabling full-duplex communication within downlink symbols.

[0048] For example, network devices can configure uplink subbands for terminals within flexible symbols. Network devices can perform uplink communication within the uplink subbands of a flexible symbol, and also downlink communication in frequency domain resources outside the uplink subbands of the frequency domain resources corresponding to the flexible symbol (e.g., active BWPs), thereby enabling full-duplex communication for network devices within flexible symbols.

[0049] For example, network devices can configure downlink subbands for terminals within uplink symbols. Network devices can perform downlink communication within the downlink subbands of uplink symbols, and also uplink communication in frequency domain resources outside the downlink subbands of the frequency domain resources corresponding to the uplink symbol (e.g., active BWPs), thereby enabling full-duplex communication within uplink symbols.

[0050] For example, network devices can configure downlink subbands for terminals within flexible symbols. Network devices can perform downlink communication within the downlink subbands of a flexible symbol, and also uplink communication in frequency domain resources outside the downlink subbands of the frequency domain resources corresponding to the flexible symbol (e.g., active BWPs), thereby enabling full-duplex communication within the flexible symbol.

[0051] According to the above embodiments, network devices can achieve full-duplex communication within semi-static symbols by configuring subbands for terminals in semi-static symbols. When a network device performs full-duplex communication within a symbol, uplink and downlink communication may occur simultaneously within that symbol, and interference may exist between uplink and downlink communication.

[0052] In one embodiment, in order to overcome interference between uplink and downlink communication, a guard band can be configured before the uplink and downlink resources configured for the terminal in a semi-static symbol. The guard band is not used to transmit information, which includes data and / or signals, thereby achieving frequency domain isolation and avoiding interference between uplink and downlink communication.

[0053] For example, if an uplink subband is configured for the terminal in the downlink symbol, the uplink subband is the uplink resource, and the uplink subband in the frequency domain resources corresponding to the downlink symbol and the frequency domain resources outside the guard band are the downlink resources.

[0054] For example, if an uplink subband is configured for the terminal in a flexible symbol, the uplink subband is the uplink resource, and the uplink subband in the frequency domain resources corresponding to the flexible symbol and the frequency domain resources outside the guard band are the downlink resources.

[0055] For example, if a downlink subband is configured for the terminal in the uplink symbol, the downlink subband is the downlink resource, and the downlink subband in the frequency domain resources corresponding to the uplink symbol and the frequency domain resources outside the guard band are the uplink resources.

[0056] For example, when a downlink subband is configured for the terminal in a flexible symbol, the downlink subband is the downlink resource, and the downlink subband in the frequency domain resources corresponding to the flexible symbol and the frequency domain resources outside the guard band are the uplink resources.

[0057] The following embodiments are mainly for the case where an uplink sub-band is configured for the terminal in the downlink symbol, and the technical solution of this disclosure is illustrated by example.

[0058] It should be noted that this disclosure does not limit the method for determining the guard band. For example, the guard band can be configured to the terminal by the network device, such as through Radio Resource Control (RRC) signaling; for example, the guard band can be determined based on protocol agreement; for example, the guard band can be determined based on the uplink and downlink resources configured on the semi-static symbol, such as the frequency domain resources in the frequency domain resources corresponding to the semi-static symbol that are not configured with uplink and downlink resources can be determined as the guard band.

[0059] However, in some cases, it is not necessary to prohibit communication on the guard band.

[0060] For example, if a network device does not transmit uplink data in the uplink subband of a downlink symbol, then the frequency domain resources outside the uplink subband in the frequency domain resources corresponding to the downlink symbol will not interfere with the uplink subband. Therefore, the guard band can be used for communication, such as for downlink transmission. This helps improve resource utilization.

[0061] For example, if a network device schedules uplink transmission resources in the uplink resources of a semi-static symbol and downlink transmission resources in the downlink resources of a semi-static symbol, with a sufficiently large gap in the frequency domain (e.g., a gap larger than the guard band), then the guard band can be used for communication, such as for downlink transmission or uplink transmission. This is beneficial for improving resource utilization.

[0062] Therefore, it is necessary to determine whether the guard interval can be used to transmit information.

[0063] Figure 1 This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure. The information transmission method shown in this embodiment can be executed by a terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The terminal can communicate with network devices, including, but not limited to, network devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0064] like Figure 1 As shown, the information transmission method may include the following steps:

[0065] In step S101, it is determined, according to the network device instruction, whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission, wherein the first time domain unit and the second time domain unit overlap.

[0066] The following examples are mainly exemplified for the case where an uplink subband is configured for the terminal in the downlink symbol.

[0067] In one embodiment, a time-domain unit includes at least one of the following: a frame, a subframe, a slot, and a symbol, wherein the symbol may be an OFDM symbol.

[0068] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0069] The first and second time domain units partially overlap;

[0070] The first time domain unit and the second time domain unit are the same time domain unit.

[0071] The following embodiments are mainly for the case where the first time domain unit and the second time domain unit are the same time domain unit, that is, the network device configures uplink and downlink resources for the terminal in the same time domain unit, and provide an exemplary description of the technical solution of this disclosure.

[0072] In one embodiment, the time-domain unit is a downlink time-domain unit. Then, the uplink resources include the uplink sub-band within the downlink time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the downlink time-domain unit, as well as frequency-domain resources outside the guard band; or...

[0073] This time-domain unit is a flexible time-domain unit. Therefore, the uplink resources include the uplink sub-band within the flexible time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the flexible time-domain unit, as well as the frequency-domain resources outside the guard band; or,

[0074] This time-domain unit is an uplink time-domain unit. Therefore, downlink resources include the downlink sub-band within the uplink time-domain unit, and uplink resources include the downlink sub-band within the corresponding frequency-domain resources of the uplink time-domain unit, as well as frequency-domain resources outside the guard band; or,

[0075] This time-domain unit is a flexible time-domain unit. Therefore, the downlink resources include the downlink sub-bands within the flexible time-domain unit, and the uplink resources include the downlink sub-bands within the frequency-domain resources corresponding to the flexible time-domain unit, as well as the frequency-domain resources outside the guard band.

[0076] The following embodiments mainly focus on the case where the uplink resources include the uplink sub-band in the downlink time domain unit, the downlink resources include the uplink sub-band in the frequency domain resources corresponding to the downlink time domain unit and the frequency domain resources outside the guard band, and the time domain unit is a symbol, to illustrate the technical solution of this disclosure.

[0077] According to embodiments of this disclosure, a terminal can determine, based on instructions from a network device, whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission. Furthermore, if the guard bands are used for information transmission, information can be transmitted on the guard bands without always prohibiting information transmission on them. This improves resource utilization and ensures good performance of the communication system.

[0078] Figure 2 This is a schematic flowchart illustrating another information transmission method according to embodiments of the present disclosure. Figure 2 As shown, determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission, according to network device instructions, includes:

[0079] In step S201, it is determined whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information, based on the indication information sent by the network device.

[0080] It should be noted that, Figure 2 The embodiments shown can be implemented independently or in combination with at least one other embodiment of this disclosure. The specific choice can be made as needed, and this disclosure does not limit the scope of the embodiments.

[0081] In one embodiment, the network device can explicitly indicate whether the guard band is used for information transmission by sending an indication message to the terminal. Correspondingly, after receiving the indication message, the terminal can determine whether the guard band is used for information transmission based on the indication message.

[0082] Figure 3 This is a schematic diagram illustrating a protection band according to an embodiment of the present disclosure.

[0083] like Figure 3 As shown, the network device configures an uplink subband for the terminal in the semi-static downlink symbol. The uplink subband is the uplink resource. The frequency domain resources outside the uplink subband and guard band in the frequency domain resources corresponding to the semi-static downlink symbol are the downlink resources. The downlink resources can also be called the downlink subband. A guard band is set between the downlink resources and the uplink resources. Figure 3 The illustrated embodiment may include two guard bands, namely guard band #1 and guard band #2.

[0084] It should be noted that in a semi-static symbol, the number of guard bands is not limited to two. It can be determined according to the specific circumstances. For example, it can be based on the number of uplink and downlink resource boundaries, such as four or six. This disclosure does not limit this.

[0085] Taking a case where there are two guard bands, namely guard band #1 and guard band #2, the indication information can indicate whether the two guard bands are used for information transmission. For example, the indication information can be shown in Table 1 below:

[0086] Instruction information meaning 0 The resources occupied by the guard band cannot be used for information transmission. 1 All the resources occupied by the protected frequency band can be used for information transmission.

[0087] Table 1

[0088] As shown in Table 1, the indication information can occupy 1 bit. When the indication information is 0, it can indicate that neither of the two guard bands is used for transmitting information; when the indication information is 1, it can indicate that both guard bands are used for transmitting information.

[0089] Figure 4A This is a schematic diagram illustrating another protection band according to an embodiment of the present disclosure. Figure 4B This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0090] like Figure 4A As shown, when the indication information is 0, the terminal can determine that neither protection band #1 nor protection band #2 is used for transmitting information.

[0091] like Figure 4B As shown, when the indication information is 1, the terminal can determine that both protection band #1 and protection band #2 are used for transmitting information.

[0092] The indication information can separately indicate whether two guard bands are used for information transmission. For example, the two guard bands may include guard band #1, identified as 1, and guard band #2, identified as 2. The method for determining the identification of multiple guard bands is determined according to the protocol or by the network device. For example, the identification of multiple guard bands can be determined based on their center frequencies from high to low, or vice versa.

[0093] For example, the instruction information can be shown in Table 2 below:

[0094] Instruction information meaning 00 Both guard band #1 and guard band #2 cannot be used for information transmission. 01 Guard band #1 cannot be used for information transmission, while guard band #2 can be used for information transmission. 10 Guard band #1 can be used for information transmission, while guard band #2 cannot be used for information transmission. 11 Both guard band #1 and guard band #2 can be used to transmit information.

[0095] Table 2

[0096] According to Table 2, the indication information can occupy 2 bits. When the indication information is 00, it indicates that neither protection band #1 nor protection band #2 can be used to transmit information; when the indication information is 01, it indicates that protection band #1 cannot be used to transmit information, but protection band #2 can be used to transmit information; when the indication information is 10, it indicates that protection band #1 can be used to transmit information, but protection band #2 cannot be used to transmit information; when the indication information is 11, it indicates that both protection band #1 and protection band #2 can be used to transmit information.

[0097] It should be noted that the form and function of the indication information are not limited to the situations described in the above embodiments, and can be set as needed. For example, the indication information can also indicate the transmission direction when the protected frequency band can be used for information transmission, such as being able to be used for downlink transmission, and / or, being able to be used for uplink transmission.

[0098] Figure 5A This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure. Figure 5B This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure. Figure 5C This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure. Figure 5D This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0099] like Figure 5A As shown, when the indication information is 00, the terminal can determine that neither protection band #1 nor protection band #2 is used for transmitting information.

[0100] like Figure 5B As shown, when the indication information is 01, the terminal can determine that the protection band #1 cannot be used to transmit information, and the protection band #2 is used to transmit information.

[0101] like Figure 5C As shown, when the indication information is 10, the terminal can determine that the protection band #1 is used for transmitting information, and the protection band #2 is not used for transmitting information.

[0102] like Figure 5D As shown, when the indication information is 11, the terminal can determine that both protection band #1 and protection band #2 are used for transmitting information.

[0103] It should be noted that when a network device designates a protection band for information transmission, the frequency domain resources scheduled by the network device may overlap with the protection band.

[0104] For example, the frequency domain resources occupied by the Physical Downlink Shared Channel (PDSCH) scheduled by network devices can overlap with the guard band.

[0105] In this scenario, if the network device indicates that the guard band is used for downlink, the network device may not need to puncture the PDSCH in the guard band, or the PDSCH may not need to perform rate matching around the resources corresponding to the guard band when mapping to resources. If the network device indicates that the guard band is not used for downlink, the network device may puncture the PDSCH in the guard band, or the PDSCH may need to perform rate matching around the resources corresponding to the guard band when mapping to resources.

[0106] The resources corresponding to the protected frequency band include at least one of the following: at least one resource block (RB) and at least one resource element (RE).

[0107] In one embodiment, the indication information includes: first downlink control information (DCI). In the first DCI, an existing information field can be reused to indicate whether the guard band is used for information transmission, or a new information field can be added to indicate whether the guard band is used for information transmission.

[0108] In one embodiment, determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information, according to network device instructions, includes: determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information, according to first downlink control information.

[0109] The first downlink control information sent by the network device can be used to indicate whether the guard band is used to transmit information scheduled by the first downlink control information. Similarly, the second downlink control information sent subsequently can indicate whether the guard band is used to transmit information scheduled by the second downlink control information.

[0110] Correspondingly, the terminal can determine whether the guard band is used to transmit information scheduled by the first downlink control information based on the first downlink control information. Upon receiving the second downlink control information after the first downlink control information, the terminal can determine whether the guard band is used to transmit information scheduled by the second downlink control information based on the second downlink control information.

[0111] In one embodiment, determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information according to network device instructions includes: determining whether the guard bands are used for transmitting information scheduled by the second downlink control information based on the first downlink control information, wherein the second downlink control information is received by the terminal after the first downlink control information.

[0112] The first downlink control information sent by the network device can be used to indicate whether the guard band is used for transmitting information. In this case, it can indicate whether the guard band is used for transmitting information scheduled by the first downlink control information, or whether the guard band is used for transmitting information scheduled by the second downlink control information received after the first downlink control information.

[0113] Correspondingly, the terminal can determine whether the guard band is used to transmit information scheduled by the first downlink control information based on the first downlink control information. For the second downlink control information received after the first downlink control information, if the determination of whether the guard band is used for information transmission based on the second downlink control information is not the opposite of the determination of whether the guard band is used for information transmission based on the first downlink control information, then the terminal can determine whether the guard band is used to transmit information scheduled by the second downlink control information based on the first downlink control information.

[0114] In this case, the first downlink control information can be used as an enabler or disabler for information transmission in the protection band.

[0115] For example, if the terminal determines that the guard band is used for transmitting information based on the first downlink control information, and the second downlink control information is received subsequently, if the second downlink control information does not indicate that the guard band is not used for transmitting information, the terminal can determine that the guard band is used for transmitting the information scheduled by the second downlink control information, until the received second downlink control information indicates that the guard band is not used for transmitting information, at which point the terminal will determine that the guard band is not used for transmitting the information scheduled by the second downlink control information.

[0116] For example, if the terminal determines that the guard band is not used for transmitting information based on the first downlink control information, and the second downlink control information is received subsequently but does not indicate that the guard band is used for transmitting information, the terminal can determine that the guard band is not used for transmitting the information scheduled by the second downlink control information. Only when the received second downlink control information indicates that the guard band is used for transmitting information will the terminal determine that the guard band is used for transmitting the information scheduled by the second downlink control information.

[0117] In one embodiment, the first downlink control information and the second downlink control may have the same or different formats.

[0118] Take the difference in format between the first downlink control information and the second downlink control information as an example. For instance, when a network device sends information to a terminal...

[0119] DCI format A indicates that a guard band is used for information transmission. The terminal determines the guard band to be used for information transmission based on DCI format A.

[0120] If, when the terminal subsequently receives DCI format B, DCI format B does not include an information field indicating whether the guard band is used for transmitting information, or DCI format B indicates that the guard band is used for transmitting information, then when the frequency domain resources of the PDSCH scheduled by DCI format B overlap with the guard band, the PDSCH can be transmitted on the guard band.

[0121] If the terminal subsequently receives DCI format B and DCI format B indicates that the guard band is not used for transmitting information, then when the frequency domain resources of the PDSCH scheduled by DCI format B overlap with the guard band, the PDSCH will not be transmitted on the guard band.

[0122] In one embodiment, the downlink control information includes at least one of the following:

[0123] Downlink control information used to schedule terminal data channels, such as DCI sent to a specific terminal, can also be called DCI dedicated to a certain terminal;

[0124] Downlink control information used to indicate the actions of a group of terminals, such as DCI sent to all terminals in the terminal group.

[0125] In one embodiment, downlink control information for indicating the actions of a group of terminals includes a plurality of first information fields, one first information field corresponding to one terminal, wherein each of the plurality of first information fields is used to indicate whether a terminal transmits information in the guard band.

[0126] Figure 6A This is a schematic diagram illustrating the structure of downlink control information according to an embodiment of the present disclosure.

[0127] like Figure 6A As shown, the DCI used to indicate a set of terminal actions can include 5 first information fields, each of which can occupy N bits, where N can be equal to 1, 2, or other values.

[0128] There can be a corresponding relationship between each first information field and the terminal. The first information field is used to indicate whether the corresponding terminal's protection frequency band is used for information transmission.

[0129] For example, the first information field #1 is used to indicate to terminal #1 whether the guard band is used for transmitting information; the first information field #2 is used to indicate to terminal #2 whether the guard band is used for transmitting information; the first information field #3 is used to indicate to terminal #3 whether the guard band is used for transmitting information; the first information field #4 is used to indicate to terminal #4 whether the guard band is used for transmitting information; and the first information field #5 is used to indicate to terminal #5 whether the guard band is used for transmitting information.

[0130] After receiving the DCI used to indicate a group of terminal actions, terminal #2 can determine the correspondence between terminal #2 and the first information field in the DCI used to indicate a group of terminal actions. For example, it can be determined that terminal #2 corresponds to the first information field #2. Then, it can determine whether the guard band is used for transmitting information based on the first information field #2.

[0131] In one embodiment, downlink control information for indicating actions of a group of terminals includes at least one second information field, one second information field corresponding to one cell, wherein each of the plurality of second information fields is used to indicate whether a terminal transmits information in the guard band.

[0132] Figure 6B This is a schematic diagram illustrating another structure of downlink control information according to an embodiment of the present disclosure.

[0133] like Figure 6B As shown, the DCI used to indicate a set of terminal actions can include 5 second information fields, each of which can occupy N bits, where N can be equal to 1, 2, or other values.

[0134] Each second information field can have a corresponding relationship with a cell. The second information field is used to indicate whether the terminal protection band in the corresponding cell is used for information transmission.

[0135] For example, the second information field #1 is used to indicate whether the terminal protection frequency band in cell #1 is used for transmitting information; the second information field #2 is used to indicate whether the terminal protection frequency band in cell #2 is used for transmitting information; the second information field #3 is used to indicate whether the terminal protection frequency band in cell #3 is used for transmitting information; the second information field #4 is used to indicate whether the terminal protection frequency band in cell #4 is used for transmitting information; and the second information field #5 is used to indicate whether the terminal protection frequency band in cell #5 is used for transmitting information.

[0136] After receiving a DCI that indicates a group of terminal actions, the terminal camped in cell #3 can determine the correspondence between cell #3 where the terminal is camped and the first information field in the DCI that indicates a group of terminal actions. For example, it can be determined that cell #3 corresponds to the first information field #3. Then, it can determine whether the guard band is used for transmitting information based on the first information field #3.

[0137] In one embodiment, the indication information includes: Media Access Control Element (MAC CE).

[0138] In one embodiment, determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information, according to network device instructions, includes: determining whether the guard bands are used for transmitting information scheduled by downlink control information received after the instruction information takes effect, according to instruction information sent by the network device.

[0139] In one embodiment, when a network device indicates whether a guard band is used for information transmission via a MAC CE, since the MAC CE is carried in the PDSCH, it takes a certain amount of time for the terminal to correctly parse the MAC CE from the PDSCH. For example, after receiving the MAC CE, the terminal can send an acknowledgment message (ACK) to the network device. The time required for the terminal to correctly parse the MAC CE from the PDSCH is 3 milliseconds from the start of sending the ACK. The MAC CE only becomes effective after it has been correctly parsed.

[0140] Therefore, network devices can use the first MAC CE to indicate whether the guard band is used to transmit information scheduled by downlink control information received after the first MAC CE takes effect.

[0141] Correspondingly, the terminal can determine whether the guard band is used for information transmission based on the first MAC CE. If it is determined that the guard band is used for information transmission, then it can be determined that the guard band is used for scheduling downlink control information received after the first MAC CE takes effect. For the second MAC CE received after the first MAC CE takes effect, if the situation regarding whether the guard band is used for information transmission indicated by the second MAC CE is not the opposite of the situation regarding whether the guard band is used for information transmission indicated by the first MAC CE, then it can be determined based on the second MAC CE whether the guard band is used for transmitting downlink control information scheduled after the second MAC CE takes effect.

[0142] In this case, MAC CE can be used as an enabler and disabler for protecting the frequency band for transmitting information.

[0143] For example, if the terminal determines that the guard band is used for transmitting information based on the first MAC CE, and upon receiving the second MAC CE, if the second MAC CE does not indicate that the guard band is not used for transmitting information, the terminal can determine that the guard band is used for transmitting downlink control information scheduled after the second MAC CE takes effect, until the received second MAC CE indicates that the guard band is not used for transmitting information, at which point the terminal determines that the guard band is not used for transmitting information under the second MAC CE and that the guard band is used for transmitting under the second MAC CE.

[0144] Figure 7This is a schematic flowchart illustrating yet another information transmission method according to embodiments of the present disclosure. Figure 7 As shown, determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission, according to network device instructions, includes:

[0145] In step S701, it is determined whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information, based on the scheduling information sent by the network device.

[0146] It should be noted that, Figure 7 The embodiments shown can be implemented independently or in combination with at least one other embodiment of this disclosure. The specific choice can be made as needed, and this disclosure does not limit the scope of the embodiments.

[0147] In one embodiment, the network device can send scheduling information to the terminal to schedule resources for communication operations, and can also implicitly indicate whether a guard band is used for information transmission through the scheduling information. Correspondingly, the terminal can determine whether the guard band is used for information transmission based on the scheduling communication.

[0148] In one embodiment, determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information based on scheduling information sent by the network device includes: determining the resources scheduled by the scheduling information; determining that the guard bands are used for transmitting information when the resources include guard bands; or determining that the guard bands are not used for transmitting information when the resources do not include guard bands.

[0149] For example, if the scheduling information directs the terminal to perform uplink transmission, and the resources determined by the terminal based on the scheduling information include frequency domain resources, which include a guard band, then the terminal can perform uplink transmission within the guard band. Alternatively, if the frequency domain resources do not include a guard band, then the terminal cannot perform uplink transmission within the guard band.

[0150] For example, if the scheduling information directs the terminal to perform downlink transmission, and the resources determined by the terminal based on the scheduling information include frequency domain resources, which include guard bands, then the terminal can perform downlink transmission within the guard bands. Alternatively, if the frequency domain resources do not include guard bands, then the terminal cannot perform downlink transmission within the guard bands.

[0151] Figure 8This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure. The information transmission method shown in this embodiment can be executed by a terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The terminal can communicate with network devices, including, but not limited to, network devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0152] like Figure 8 As shown, the information transmission method may include the following steps:

[0153] In step S801, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are determined for information transmission according to the network device instruction, wherein the first time domain unit and the second time domain unit overlap.

[0154] The following examples are mainly exemplified for the case where an uplink subband is configured for the terminal in the downlink symbol.

[0155] In one embodiment, a time-domain unit includes at least one of the following: a frame, a subframe, a slot, and a symbol, wherein the symbol may be an OFDM symbol.

[0156] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0157] The first and second time domain units partially overlap;

[0158] The first time domain unit and the second time domain unit are the same time domain unit.

[0159] The following embodiments are mainly for the case where the first time domain unit and the second time domain unit are the same time domain unit, that is, the network device configures uplink and downlink resources for the terminal in the same time domain unit, and provide an exemplary description of the technical solution of this disclosure.

[0160] In one embodiment, the time-domain unit is a downlink time-domain unit. Then, the uplink resources include the uplink sub-band within the downlink time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the downlink time-domain unit, as well as frequency-domain resources outside the guard band; or...

[0161] This time-domain unit is a flexible time-domain unit. Therefore, the uplink resources include the uplink sub-band within the flexible time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the flexible time-domain unit, as well as the frequency-domain resources outside the guard band; or,

[0162] This time-domain unit is an uplink time-domain unit. Therefore, downlink resources include the downlink sub-band within the uplink time-domain unit, and uplink resources include the downlink sub-band within the corresponding frequency-domain resources of the uplink time-domain unit, as well as frequency-domain resources outside the guard band; or,

[0163] This time-domain unit is a flexible time-domain unit. Therefore, the downlink resources include the downlink sub-bands within the flexible time-domain unit, and the uplink resources include the downlink sub-bands within the frequency-domain resources corresponding to the flexible time-domain unit, as well as the frequency-domain resources outside the guard band.

[0164] The following embodiments mainly focus on the case where the uplink resources include the uplink sub-band in the downlink time domain unit, the downlink resources include the uplink sub-band in the frequency domain resources corresponding to the downlink time domain unit and the frequency domain resources outside the guard band, and the time domain unit is a symbol, to illustrate the technical solution of this disclosure.

[0165] According to embodiments of this disclosure, a terminal can determine one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit for information transmission based on instructions from the network device. This allows information to be transmitted on the guard bands without always prohibiting information transmission on them. Consequently, resource utilization is improved, ensuring good performance of the communication system.

[0166] In one embodiment, determining one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit for transmitting information, according to network device instructions, includes:

[0167] Based on the first indication information sent by the network device, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are determined for information transmission.

[0168] In one embodiment, the network device can explicitly indicate whether the guard band is used for information transmission by sending a first indication message to the terminal. Correspondingly, after receiving the first indication message, the terminal can determine whether the guard band is used for information transmission based on the first indication message.

[0169] In one example, the first indication information can be downlink control information or a media access control layer control element. Specific indication methods can be found in the preceding description and will not be repeated here.

[0170] Optionally, in another embodiment, determining one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit for transmitting information, according to network device instructions, further includes:

[0171] Based on the second indication information sent by the network device, it is determined that one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit will not be used for information transmission, wherein the second indication information is received by the terminal after the first indication information.

[0172] In one example, the second indication information can be downlink control information or a media access control layer control element. Specific indication methods can be found in the preceding description and will not be repeated here.

[0173] The first indication message sent by the network device can be used to indicate that the protected frequency band is used for information transmission. When a second indication message is subsequently sent, it can be used to indicate that the protected frequency band is not used for information transmission.

[0174] Correspondingly, the terminal can determine that the guard band is used for information transmission based on the first indication information. If a second indication information is received after the first indication information, the terminal can determine that the guard band is not used for information transmission based on the second indication information.

[0175] In this case, the first indication information can act as an enabler for the protection band to transmit information, and the second indication information can act as a disabler for the protection band to transmit information.

[0176] In one embodiment, the first indication information is downlink control information or a media access control layer control element; and / or, the second indication information is downlink control information or a media access control layer control element.

[0177] In one embodiment, the downlink control information includes at least one of the following:

[0178] Downlink control information used to schedule terminal data channels;

[0179] Downlink control information used to indicate a set of terminal actions.

[0180] In one embodiment, downlink control information for indicating actions of a group of terminals includes a plurality of first information fields, wherein each first information field in the first indication information is used to indicate that a terminal is transmitting information in the protection band, and each first information field in the second indication information is used to indicate that a terminal is not transmitting information in the protection band.

[0181] Alternatively, the downlink control information used to indicate the actions of a group of terminals includes multiple second information fields, wherein each second information field in the first indication information is used to indicate whether a terminal in a cell transmits information in the protection band, and each second information field in the second indication information is used to indicate whether a terminal in a cell transmits information outside the protection band.

[0182] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0183] The first and second time domain units partially overlap;

[0184] The first time domain unit and the second time domain unit are the same time domain unit.

[0185] It should be noted that other contents involved in this embodiment are described in the previous embodiments, and will not be repeated here.

[0186] Figure 9 This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure. The information transmission method shown in this embodiment can be executed by a network device, which can communicate with a terminal. The network device includes, but is not limited to, base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The terminal includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices.

[0187] like Figure 9 As shown, the information transmission method may include the following steps:

[0188] In step S901, it is indicated whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0189] The following examples are mainly exemplified for the case where an uplink subband is configured for the terminal in the downlink symbol.

[0190] In one embodiment, a time-domain unit includes at least one of the following: a frame, a subframe, a slot, and a symbol, wherein the symbol may be an OFDM symbol.

[0191] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0192] The first and second time domain units partially overlap;

[0193] The first time domain unit and the second time domain unit are the same time domain unit.

[0194] The following embodiments are mainly for the case where the first time domain unit and the second time domain unit are the same time domain unit, that is, the network device configures uplink and downlink resources for the terminal in the same time domain unit, and provide an exemplary description of the technical solution of this disclosure.

[0195] In one embodiment, the time-domain unit is a downlink time-domain unit. Then, the uplink resources include the uplink sub-band within the downlink time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the downlink time-domain unit, as well as frequency-domain resources outside the guard band; or...

[0196] This time-domain unit is a flexible time-domain unit. Therefore, the uplink resources include the uplink sub-band within the flexible time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the flexible time-domain unit, as well as the frequency-domain resources outside the guard band; or,

[0197] This time-domain unit is an uplink time-domain unit. Therefore, downlink resources include the downlink sub-band within the uplink time-domain unit, and uplink resources include the downlink sub-band within the corresponding frequency-domain resources of the uplink time-domain unit, as well as frequency-domain resources outside the guard band; or,

[0198] This time-domain unit is a flexible time-domain unit. Therefore, the downlink resources include the downlink sub-bands within the flexible time-domain unit, and the uplink resources include the downlink sub-bands within the frequency-domain resources corresponding to the flexible time-domain unit, as well as the frequency-domain resources outside the guard band.

[0199] The following embodiments mainly focus on the case where the uplink resources include the uplink sub-band in the downlink time domain unit, the downlink resources include the uplink sub-band in the frequency domain resources corresponding to the downlink time domain unit and the frequency domain resources outside the guard band, and the time domain unit is a symbol, to illustrate the technical solution of this disclosure.

[0200] According to embodiments of this disclosure, a network device can instruct a terminal whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission. If the terminal determines that the guard bands are used for information transmission, it can transmit information on the guard bands without always prohibiting information transmission on them. This improves resource utilization and ensures good performance of the communication system.

[0201] In one implementation, instructing whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal are used for transmitting information includes: sending indication information to the terminal, wherein the indication information is used to indicate whether the terminal guard bands are used for transmitting information.

[0202] Network devices can explicitly indicate whether a guard band is used for information transmission by sending an indication message to the terminal. Correspondingly, after receiving the indication message, the terminal can determine whether the guard band is used for information transmission based on the indication message.

[0203] like Figure 3As shown, the network device configures an uplink subband for the terminal in the semi-static downlink symbol. The uplink subband is the uplink resource. The frequency domain resources outside the uplink subband and guard band in the frequency domain resources corresponding to the semi-static downlink symbol are the downlink resources. The downlink resources can also be called the downlink subband. A guard band is set between the downlink resources and the uplink resources. Figure 3 The illustrated embodiment may include two guard bands, namely guard band #1 and guard band #2.

[0204] It should be noted that in a semi-static symbol, the number of guard bands is not limited to two. It can be determined according to the specific circumstances. For example, it can be based on the number of uplink and downlink resource boundaries, such as four or six. This disclosure does not limit this.

[0205] Taking a case where there are two guard bands, namely guard band #1 and guard band #2, the indication information can indicate whether the two guard bands are used for transmitting information. For example, the indication information can be as shown in Table 1 above.

[0206] As shown in Table 1, the indication information can occupy 1 bit. When the indication information is 0, it can indicate that neither of the two guard bands is used for transmitting information; when the indication information is 1, it can indicate that both guard bands are used for transmitting information.

[0207] Figure 4A This is a schematic diagram illustrating another protection band according to an embodiment of the present disclosure. Figure 4B This is a schematic diagram illustrating yet another protection band according to an embodiment of the present disclosure.

[0208] like Figure 4A As shown, when the indication information is 0, the terminal can determine that neither protection band #1 nor protection band #2 is used for transmitting information.

[0209] like Figure 4B As shown, when the indication information is 1, the terminal can determine that both protection band #1 and protection band #2 are used for transmitting information.

[0210] The indication information can separately indicate whether two guard bands are used for information transmission. For example, the two guard bands may include guard band #1, identified as 1, and guard band #2, identified as 2. The method for determining the identification of multiple guard bands is determined according to the protocol or by the network device. For example, the identification of multiple guard bands can be determined based on their center frequencies from high to low, or vice versa.

[0211] For example, the indication information can be as shown in Table 2 above. According to Table 2, the indication information can occupy 2 bits. When the indication information is 00, it can indicate that neither guard band #1 nor guard band #2 can be used to transmit information; when the indication information is 01, it can indicate that guard band #1 cannot be used to transmit information, but guard band #2 can be used to transmit information; when the indication information is 10, it can indicate that guard band #1 can be used to transmit information, but guard band #2 cannot be used to transmit information; when the indication information is 11, it can indicate that both guard band #1 and guard band #2 can be used to transmit information.

[0212] It should be noted that the form and function of the indication information are not limited to the situations described in the above embodiments, and can be set as needed. For example, the indication information can also indicate the transmission direction when the protected frequency band can be used for information transmission, such as being able to be used for downlink transmission, and / or, being able to be used for uplink transmission.

[0213] like Figure 5A As shown, when the indication information is 00, the terminal can determine that neither protection band #1 nor protection band #2 is used for transmitting information.

[0214] like Figure 5B As shown, when the indication information is 01, the terminal can determine that the protection band #1 cannot be used to transmit information, and the protection band #2 is used to transmit information.

[0215] like Figure 5C As shown, when the indication information is 10, the terminal can determine that the protection band #1 is used for transmitting information, and the protection band #2 is not used for transmitting information.

[0216] like Figure 5D As shown, when the indication information is 11, the terminal can determine that both protection band #1 and protection band #2 are used for transmitting information.

[0217] It should be noted that when a network device designates a protection band for information transmission, the frequency domain resources scheduled by the network device may overlap with the protection band.

[0218] For example, the frequency domain resources occupied by the Physical Downlink Shared Channel (PDSCH) scheduled by network devices can overlap with the guard band.

[0219] In this scenario, if the network device indicates that the guard band is used for downlink, the network device may not need to puncture the PDSCH in the guard band, or the PDSCH may not need to perform rate matching around the resources corresponding to the guard band when mapping to resources. If the network device indicates that the guard band is not used for downlink, the network device may puncture the PDSCH in the guard band, or the PDSCH may need to perform rate matching around the resources corresponding to the guard band when mapping to resources.

[0220] The resources corresponding to the protected frequency band include at least one of the following: at least one resource block (RB) and at least one resource element (RE).

[0221] In one embodiment, the indication information includes: first downlink control information. In the first DCI, an existing information field can be reused to indicate whether the guard band is used for information transmission, or a new information field can be added to indicate whether the guard band is used for information transmission.

[0222] In one embodiment, the first downlink control information is used to indicate whether the terminal guard band is used for transmitting information.

[0223] The first downlink control information sent by the network device can be used to indicate whether the guard band is used to transmit information scheduled by the first downlink control information. Similarly, the second downlink control information sent subsequently can indicate whether the guard band is used to transmit information scheduled by the second downlink control information.

[0224] Correspondingly, the terminal can determine whether the guard band is used to transmit information scheduled by the first downlink control information based on the first downlink control information. Upon receiving the second downlink control information after the first downlink control information, the terminal can determine whether the guard band is used to transmit information scheduled by the second downlink control information based on the second downlink control information.

[0225] In one embodiment, the first downlink control information is used to indicate whether the terminal guard band is used to transmit information scheduled by the second downlink control information, which is received by the terminal after the first downlink control information.

[0226] The first downlink control information sent by the network device can be used to indicate whether the guard band is used for transmitting information. In this case, it can indicate whether the guard band is used for transmitting information scheduled by the first downlink control information, or whether the guard band is used for transmitting information scheduled by the second downlink control information received after the first downlink control information.

[0227] Correspondingly, the terminal can determine whether the guard band is used to transmit information scheduled by the first downlink control information based on the first downlink control information. For the second downlink control information received after the first downlink control information, if the determination of whether the guard band is used for information transmission based on the second downlink control information is not the opposite of the determination of whether the guard band is used for information transmission based on the first downlink control information, then the terminal can determine whether the guard band is used to transmit information scheduled by the second downlink control information based on the first downlink control information.

[0228] In this case, the first downlink control information can be used as an enabler or disabler for information transmission in the protection band.

[0229] For example, if the terminal determines that the guard band is used for transmitting information based on the first downlink control information, and the second downlink control information is received subsequently, if the second downlink control information does not indicate that the guard band is not used for transmitting information, the terminal can determine that the guard band is used for transmitting the information scheduled by the second downlink control information, until the received second downlink control information indicates that the guard band is not used for transmitting information, at which point the terminal will determine that the guard band is not used for transmitting the information scheduled by the second downlink control information.

[0230] For example, if the terminal determines that the guard band is not used for transmitting information based on the first downlink control information, and the second downlink control information is received subsequently but does not indicate that the guard band is used for transmitting information, the terminal can determine that the guard band is not used for transmitting the information scheduled by the second downlink control information. Only when the received second downlink control information indicates that the guard band is used for transmitting information will the terminal determine that the guard band is used for transmitting the information scheduled by the second downlink control information.

[0231] In one embodiment, the first downlink control information and the second downlink control may have the same or different formats.

[0232] Take the difference in format between the first downlink control information and the second downlink control information as an example. For instance, when a network device sends information to a terminal...

[0233] DCIformat A indicates that the guard band is used for information transmission. The terminal determines the guard band to be used for information transmission based on DCIformat A.

[0234] If, when the terminal subsequently receives DCI format B, DCI format B does not include an information field indicating whether the guard band is used for transmitting information, or DCI format B indicates that the guard band is used for transmitting information, then when the frequency domain resources of the PDSCH scheduled by DCI format B overlap with the guard band, the PDSCH can be transmitted on the guard band.

[0235] If the terminal subsequently receives DCI format B and DCI format B indicates that the guard band is not used for transmitting information, then when the frequency domain resources of the PDSCH scheduled by DCI format B overlap with the guard band, the PDSCH will not be transmitted on the guard band.

[0236] In one embodiment, the downlink control information includes at least one of the following:

[0237] Downlink control information used to schedule terminal data channels, such as DCI sent to a specific terminal, can also be called DCI dedicated to a certain terminal;

[0238] Downlink control information used to indicate the actions of a group of terminals, such as DCI sent to all terminals in the terminal group.

[0239] In one embodiment, downlink control information for indicating the actions of a group of terminals includes a plurality of first information fields, one first information field corresponding to one terminal, wherein each of the plurality of first information fields is used to indicate whether a terminal transmits information in the guard band.

[0240] like Figure 6A As shown, the DCI used to indicate a set of terminal actions can include 5 first information fields, each of which can occupy N bits, where N can be equal to 1, 2, or other values.

[0241] There can be a corresponding relationship between each first information field and the terminal. The first information field is used to indicate whether the corresponding terminal's protection frequency band is used for information transmission.

[0242] For example, the first information field #1 is used to indicate to terminal #1 whether the guard band is used for transmitting information; the first information field #2 is used to indicate to terminal #2 whether the guard band is used for transmitting information; the first information field #3 is used to indicate to terminal #3 whether the guard band is used for transmitting information; the first information field #4 is used to indicate to terminal #4 whether the guard band is used for transmitting information; and the first information field #5 is used to indicate to terminal #5 whether the guard band is used for transmitting information.

[0243] After receiving the DCI used to indicate a group of terminal actions, terminal #2 can determine the correspondence between terminal #2 and the first information field in the DCI used to indicate a group of terminal actions. For example, it can be determined that terminal #2 corresponds to the first information field #2. Then, it can determine whether the guard band is used for transmitting information based on the first information field #2.

[0244] In one embodiment, downlink control information for indicating actions of a group of terminals includes at least one second information field, one second information field corresponding to one cell, wherein each of the plurality of second information fields is used to indicate whether a terminal transmits information in the guard band.

[0245] like Figure 6B As shown, the DCI used to indicate a set of terminal actions can include 5 second information fields, each of which can occupy N bits, where N can be equal to 1, 2, or other values.

[0246] Each second information field can have a corresponding relationship with a cell. The second information field is used to indicate whether the terminal protection band in the corresponding cell is used for information transmission.

[0247] For example, the second information field #1 is used to indicate whether the terminal protection frequency band in cell #1 is used for transmitting information; the second information field #2 is used to indicate whether the terminal protection frequency band in cell #2 is used for transmitting information; the second information field #3 is used to indicate whether the terminal protection frequency band in cell #3 is used for transmitting information; the second information field #4 is used to indicate whether the terminal protection frequency band in cell #4 is used for transmitting information; and the second information field #5 is used to indicate whether the terminal protection frequency band in cell #5 is used for transmitting information.

[0248] After receiving a DCI that indicates a group of terminal actions, the terminal camped in cell #3 can determine the correspondence between cell #3 where the terminal is camped and the first information field in the DCI that indicates a group of terminal actions. For example, it can be determined that cell #3 corresponds to the first information field #3. Then, it can determine whether the guard band is used for transmitting information based on the first information field #3.

[0249] In one embodiment, the indication information includes: a media access control layer control element.

[0250] In one embodiment, the indication information is used to indicate whether the terminal protection band is used to transmit information scheduled by downlink control information received after the indication information takes effect.

[0251] In one embodiment, when a network device indicates whether a guard band is used for information transmission via a MAC CE, since the MAC CE is carried in the PDSCH, it takes a certain amount of time for the terminal to correctly parse the MAC CE from the PDSCH. For example, after receiving the MAC CE, the terminal can send an acknowledgment message (ACK) to the network device. The time required for the terminal to correctly parse the MAC CE from the PDSCH is 3 milliseconds from the start of sending the ACK. The MAC CE only becomes effective after it has been correctly parsed.

[0252] Therefore, network devices can use the first MAC CE to indicate whether the guard band is used to transmit information scheduled by downlink control information received after the first MAC CE takes effect.

[0253] Correspondingly, the terminal can determine whether the guard band is used for information transmission based on the first MAC CE. If it is determined that the guard band is used for information transmission, then it can be determined that the guard band is used for scheduling downlink control information received after the first MAC CE takes effect. For the second MAC CE received after the first MAC CE takes effect, if the situation regarding whether the guard band is used for information transmission indicated by the second MAC CE is not the opposite of the situation regarding whether the guard band is used for information transmission indicated by the first MAC CE, then it can be determined based on the second MAC CE whether the guard band is used for transmitting downlink control information scheduled after the second MAC CE takes effect.

[0254] In this case, MAC CE can be used as an enabler and disabler for protecting the frequency band for transmitting information.

[0255] For example, if the terminal determines that the guard band is used for transmitting information based on the first MAC CE, and upon receiving the second MAC CE, if the second MAC CE does not indicate that the guard band is not used for transmitting information, the terminal can determine that the guard band is used for transmitting downlink control information scheduled after the second MAC CE takes effect, until the received second MAC CE indicates that the guard band is not used for transmitting information, at which point the terminal determines that the guard band is not used for transmitting information under the second MAC CE and that the guard band is used for transmitting under the second MAC CE.

[0256] In one embodiment, instructing whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal are used for transmitting information includes: sending scheduling information to the terminal, wherein the scheduling information is used to instruct whether the terminal guard bands are used for transmitting information.

[0257] Network devices can send scheduling information to terminals to allocate resources for communication. They can also implicitly indicate whether a protected frequency band is used for information transmission. Correspondingly, terminals can determine whether to use a protected frequency band for information transmission based on the scheduling communication.

[0258] In one embodiment, when the resources include a protection band, the scheduling information is used to instruct the terminal to use the protection band for transmitting information; or, when the resources do not include a protection band, the scheduling information is used to instruct the terminal not to use the protection band for transmitting information.

[0259] For example, if the scheduling information directs the terminal to perform uplink transmission, and the resources determined by the terminal based on the scheduling information include frequency domain resources, which include a guard band, then the terminal can perform uplink transmission within the guard band. Alternatively, if the frequency domain resources do not include a guard band, then the terminal cannot perform uplink transmission within the guard band.

[0260] For example, if the scheduling information directs the terminal to perform downlink transmission, and the resources determined by the terminal based on the scheduling information include frequency domain resources, which include guard bands, then the terminal can perform downlink transmission within the guard bands. Alternatively, if the frequency domain resources do not include guard bands, then the terminal cannot perform downlink transmission within the guard bands.

[0261] Figure 10 This is a schematic diagram illustrating the interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0262] like Figure 10 As shown, the network device can instruct the terminal whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission, wherein the first time domain unit and the second time domain unit overlap. The terminal can determine whether the guard band is used for information transmission based on the network device's instruction.

[0263] In one embodiment, the indication information includes first downlink control information.

[0264] In one embodiment, the first downlink control information is used to indicate whether the terminal guard band is used for transmitting information.

[0265] In one embodiment, the first downlink control information is used to indicate whether the terminal guard band is used to transmit information scheduled by the second downlink control information, which is received by the terminal after the first downlink control information.

[0266] In one embodiment, the indication information includes a MAC CE. The indication information is used to indicate whether the terminal guard band is used to transmit information scheduled by downlink control information received after the indication information takes effect.

[0267] It should be noted that other contents involved in this embodiment are described in the previous embodiments, and will not be repeated here.

[0268] Figure 11 This is a schematic flowchart illustrating an information transmission method according to an embodiment of the present disclosure. The information transmission method shown in this embodiment can be executed by a network device, which can communicate with a terminal. The network device includes, but is not limited to, base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The terminal includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices.

[0269] like Figure 11 As shown, the information transmission method may include the following steps:

[0270] In step S1101, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal are designated for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0271] The following examples are mainly exemplified for the case where an uplink subband is configured for the terminal in the downlink symbol.

[0272] In one embodiment, a time-domain unit includes at least one of the following: a frame, a subframe, a slot, and a symbol, wherein the symbol may be an OFDM symbol.

[0273] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0274] The first and second time domain units partially overlap;

[0275] The first time domain unit and the second time domain unit are the same time domain unit.

[0276] The following embodiments are mainly for the case where the first time domain unit and the second time domain unit are the same time domain unit, that is, the network device configures uplink and downlink resources for the terminal in the same time domain unit, and provide an exemplary description of the technical solution of this disclosure.

[0277] In one embodiment, the time-domain unit is a downlink time-domain unit. Then, the uplink resources include the uplink sub-band within the downlink time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the downlink time-domain unit, as well as frequency-domain resources outside the guard band; or...

[0278] This time-domain unit is a flexible time-domain unit. Therefore, the uplink resources include the uplink sub-band within the flexible time-domain unit, and the downlink resources include the uplink sub-band within the corresponding frequency-domain resources of the flexible time-domain unit, as well as the frequency-domain resources outside the guard band; or,

[0279] This time-domain unit is an uplink time-domain unit. Therefore, downlink resources include the downlink sub-band within the uplink time-domain unit, and uplink resources include the downlink sub-band within the corresponding frequency-domain resources of the uplink time-domain unit, as well as frequency-domain resources outside the guard band; or,

[0280] This time-domain unit is a flexible time-domain unit. Therefore, the downlink resources include the downlink sub-bands within the flexible time-domain unit, and the uplink resources include the downlink sub-bands within the frequency-domain resources corresponding to the flexible time-domain unit, as well as the frequency-domain resources outside the guard band.

[0281] The following embodiments mainly focus on the case where the uplink resources include the uplink sub-band in the downlink time domain unit, the downlink resources include the uplink sub-band in the frequency domain resources corresponding to the downlink time domain unit and the frequency domain resources outside the guard band, and the time domain unit is a symbol, to illustrate the technical solution of this disclosure.

[0282] According to embodiments of this disclosure, a network device can instruct one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of a terminal to be used for information transmission. This allows the terminal to determine whether to transmit information on the guard bands, rather than always prohibiting information transmission on the guard bands. This improves resource utilization and ensures good performance of the communication system.

[0283] In one embodiment, instructing one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal to be used for transmitting information includes: sending first indication information to the terminal, wherein the first indication information is used to instruct the terminal to use the guard bands for transmitting information.

[0284] Network devices can explicitly indicate whether a guard band is used for information transmission by sending a first indication message to the terminal. Correspondingly, after receiving the first indication message, the terminal can determine whether the guard band is used for information transmission based on the first indication message.

[0285] In one example, the first indication information can be downlink control information or a media access control layer control element. Specific indication methods can be found in the preceding description and will not be repeated here.

[0286] Optionally, in another embodiment, determining, according to the network device instruction, that one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information further includes: sending second indication information to the terminal, wherein the second indication information is used to indicate that the terminal guard bands are not used for transmitting information.

[0287] In one example, the second indication information can be downlink control information or a media access control layer control element. Specific indication methods can be found in the preceding description and will not be repeated here.

[0288] The first indication message sent by the network device can be used to indicate that the protected frequency band is used for information transmission. When a second indication message is subsequently sent, it can be used to indicate that the protected frequency band is not used for information transmission.

[0289] Correspondingly, the terminal can determine that the guard band is used for information transmission based on the first indication information. If a second indication information is received after the first indication information, the terminal can determine that the guard band is not used for information transmission based on the second indication information.

[0290] In this case, the first indication information can act as an enabler for the protection band to transmit information, and the second indication information can act as a disabler for the protection band to transmit information.

[0291] In one embodiment, the first indication information is downlink control information or a media access control layer control element; and / or, the second indication information is downlink control information or a media access control layer control element.

[0292] In one embodiment, the downlink control information includes at least one of the following:

[0293] Downlink control information used to schedule terminal data channels;

[0294] Downlink control information used to indicate a set of terminal actions.

[0295] In one embodiment, downlink control information for indicating actions of a group of terminals includes a plurality of first information fields, wherein each first information field in the first indication information is used to indicate that a terminal is transmitting information in the protection band, and each first information field in the second indication information is used to indicate that a terminal is not transmitting information in the protection band.

[0296] Alternatively, the downlink control information used to indicate the actions of a group of terminals includes multiple second information fields, wherein each second information field in the first indication information is used to indicate whether a terminal in a cell transmits information in the protection band, and each second information field in the second indication information is used to indicate whether a terminal in a cell transmits information outside the protection band.

[0297] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0298] The first and second time domain units partially overlap;

[0299] The first time domain unit and the second time domain unit are the same time domain unit.

[0300] Figure 12 This is a schematic diagram illustrating another interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0301] like Figure 12 As shown, the network device can send first indication information to the terminal. This first indication information indicates that one or more guard bands between the uplink resources of the terminal's first time domain unit and the downlink resources of its second time domain unit are used for information transmission. Based on the first indication information, the terminal can determine that the guard bands are used for information transmission, and thus can transmit information within those guard bands.

[0302] After sending the first indication information, the network device can also send a second indication information to the terminal. This second indication information instructs the terminal not to use the protection band for information transmission. Based on the first indication information, the terminal can determine that the protection band is not for information transmission and thus stop transmitting information in the protection band.

[0303] In one embodiment, the indication information includes downlink control information.

[0304] In one embodiment, the indication information includes MAC CE.

[0305] It should be noted that other contents involved in this embodiment are described in the previous embodiments, and will not be repeated here.

[0306] Corresponding to the embodiments of the aforementioned information transmission method, this disclosure also provides embodiments of an information transmission apparatus.

[0307] Figure 13 This is a schematic block diagram illustrating an information transmission device according to embodiments of the present disclosure. Figure 13 As shown, the information transmission device includes:

[0308] Processing module 1301 is configured to determine, according to network device instructions, whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0309] In one embodiment, the processing module is configured to determine, based on indication information sent by the network device, whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information.

[0310] In one embodiment, the indication information includes: first downlink control information.

[0311] In one embodiment, the processing module is configured to determine, based on first downlink control information, whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information.

[0312] In one embodiment, the processing module is configured to determine, based on the first downlink control information, whether the guard band is used to transmit information scheduled by the second downlink control information, wherein the second downlink control information is received by the terminal after the first downlink control information.

[0313] In one embodiment, the first downlink control information and the second downlink control may have the same or different formats.

[0314] In one embodiment, the first downlink control information includes at least one of the following:

[0315] Downlink control information used to schedule terminal data channels;

[0316] Downlink control information used to indicate a set of terminal actions.

[0317] In one embodiment, the downlink control information for indicating actions of a group of terminals includes a plurality of first information fields, wherein each of the plurality of first information fields is used to indicate whether a terminal transmits information in a guard band; or, the downlink control information for indicating actions of a group of terminals includes a plurality of second information fields, wherein each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in a guard band.

[0318] In one embodiment, the indication information includes: a media access control layer control element.

[0319] In one embodiment, the processing module is configured to determine, based on indication information sent by the network device, whether the guard band is used to transmit information scheduled by downlink control information received after the indication information takes effect.

[0320] In one embodiment, the processing module is configured to determine, based on scheduling information sent by the network device, whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information.

[0321] In one embodiment, the processing module is configured to determine the resources to be scheduled by the scheduling information; if the resources include a guard band, determine that the guard band is used for transmitting information; or, if the resources do not include a guard band, determine that the guard band is not used for transmitting information.

[0322] In one embodiment, the time-domain unit includes at least one of the following: frame, subframe, time slot, symbol.

[0323] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0324] The first and second time domain units partially overlap;

[0325] The first time domain unit and the second time domain unit are the same time domain unit.

[0326] In one embodiment, uplink resources include uplink sub-bands in downlink time-domain units, and downlink resources include uplink sub-bands corresponding to downlink time-domain units and frequency-domain resources outside the guard band; or...

[0327] Uplink resources include the uplink subband within the flexible time-domain unit, and downlink resources include the uplink subband corresponding to the flexible time-domain unit and frequency domain resources outside the guard band; or,

[0328] Downlink resources include the downlink sub-band within the uplink time domain unit, and uplink resources include the downlink sub-band corresponding to the uplink time domain unit and frequency domain resources outside the guard band; or,

[0329] Downlink resources include downlink subbands in the flexible time domain unit, while uplink resources include downlink subbands corresponding to the flexible time domain unit and frequency domain resources outside the guard band.

[0330] Figure 14 This is a schematic block diagram illustrating an information transmission device according to embodiments of the present disclosure. Figure 14 As shown, the information transmission device includes:

[0331] The processing module 1401 is configured to determine, according to network device instructions, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0332] In one embodiment, the processing module is configured to determine, based on first indication information sent by the network device, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit for transmitting information.

[0333] In one embodiment, the processing module is further configured to determine, based on second indication information sent by the network device, that one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are not used for transmitting information, wherein the second indication information is received by the terminal after the first indication information.

[0334] In one embodiment, the first indication information is downlink control information or a media access control layer control element; and / or, the second indication information is downlink control information or a media access control layer control element.

[0335] In one embodiment, the downlink control information includes at least one of the following:

[0336] Downlink control information used to schedule terminal data channels;

[0337] Downlink control information used to indicate a set of terminal actions.

[0338] In one embodiment, downlink control information for indicating actions of a group of terminals includes a plurality of first information fields, wherein each first information field in the first indication information is used to indicate that a terminal is transmitting information in the protection band, and each first information field in the second indication information is used to indicate that a terminal is not transmitting information in the protection band.

[0339] Alternatively, the downlink control information used to indicate the actions of a group of terminals includes multiple second information fields, wherein each second information field in the first indication information is used to indicate whether a terminal in a cell transmits information in the protection band, and each second information field in the second indication information is used to indicate whether a terminal in a cell transmits information outside the protection band.

[0340] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0341] The first and second time domain units partially overlap;

[0342] The first time domain unit and the second time domain unit are the same time domain unit.

[0343] Figure 15 This is a schematic block diagram illustrating an information transmission device according to embodiments of the present disclosure. Figure 15 As shown, the information transmission device includes:

[0344] The indication module 1501 is configured to indicate whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0345] In one embodiment, the indication module is configured to send indication information to the terminal, wherein the indication information is used to indicate whether the terminal's protected frequency band is used for transmitting information.

[0346] In one embodiment, the indication information includes: first downlink control information.

[0347] In one embodiment, the first downlink control information is used to indicate whether the terminal guard band is used for transmitting information.

[0348] In one embodiment, the first downlink control information is used to indicate whether the terminal guard band is used to transmit information scheduled by the second downlink control information, which is received by the terminal after the first downlink control information.

[0349] In one embodiment, the first downlink control information and the second downlink control may have the same or different formats.

[0350] In one embodiment, the first downlink control information includes at least one of the following:

[0351] Downlink control information used to schedule terminal data channels;

[0352] Downlink control information used to indicate a set of terminal actions.

[0353] In one embodiment, the downlink control information for indicating actions of a group of terminals includes a plurality of first information fields, wherein each of the plurality of first information fields is used to indicate whether a terminal transmits information in a guard band; or, the downlink control information for indicating actions of a group of terminals includes a plurality of second information fields, wherein each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in a guard band.

[0354] In one embodiment, the indication information includes: a media access control layer control element.

[0355] In one embodiment, the indication information is used to indicate whether the terminal protection band is used to transmit information scheduled by downlink control information received after the indication information takes effect.

[0356] In one embodiment, the indication module is configured to send scheduling information to the terminal, wherein the scheduling information is used to indicate whether the terminal's protected frequency band is used for transmitting information.

[0357] In one embodiment, when the resources include a protection band, the scheduling information is used to instruct the terminal to use the protection band for transmitting information; or, when the resources do not include a protection band, the scheduling information is used to instruct the terminal not to use the protection band for transmitting information.

[0358] In one embodiment, the time-domain unit includes at least one of the following: frame, subframe, time slot, symbol.

[0359] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0360] The first and second time domain units partially overlap;

[0361] The first time domain unit and the second time domain unit are the same time domain unit.

[0362] In one embodiment, uplink resources include uplink sub-bands in downlink time-domain units, and downlink resources include uplink sub-bands corresponding to downlink time-domain units and frequency-domain resources outside the guard band; or...

[0363] Uplink resources include the uplink subband within the flexible time-domain unit, and downlink resources include the uplink subband corresponding to the flexible time-domain unit and frequency domain resources outside the guard band; or,

[0364] Downlink resources include the downlink sub-band within the uplink time domain unit, and uplink resources include the downlink sub-band corresponding to the uplink time domain unit and frequency domain resources outside the guard band; or,

[0365] Downlink resources include downlink subbands in the flexible time domain unit, while uplink resources include downlink subbands corresponding to the flexible time domain unit and frequency domain resources outside the guard band.

[0366] Figure 16 This is a schematic block diagram illustrating an information transmission device according to embodiments of the present disclosure. Figure 16 As shown, the information transmission device includes:

[0367] The indication module 1601 is configured to indicate one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal for transmitting information, wherein the first time domain unit and the second time domain unit overlap.

[0368] In one embodiment, the indication module is configured to send first indication information to the terminal, wherein the first indication information is used to instruct the terminal to protect the frequency band for transmitting information.

[0369] In one embodiment, the indication module is further configured to send a second indication message to the terminal, wherein the second indication message is used to indicate that the terminal's protection band is not used for transmitting information.

[0370] In one embodiment, the first indication information is downlink control information or a media access control layer control element; and / or, the second indication information is downlink control information or a media access control layer control element.

[0371] In one embodiment, the downlink control information includes at least one of the following:

[0372] Downlink control information used to schedule terminal data channels;

[0373] Downlink control information used to indicate a set of terminal actions.

[0374] In one embodiment, downlink control information for indicating actions of a group of terminals includes a plurality of first information fields, wherein each first information field in the first indication information is used to indicate that a terminal is transmitting information in the protection band, and each first information field in the second indication information is used to indicate that a terminal is not transmitting information in the protection band.

[0375] Alternatively, the downlink control information used to indicate the actions of a group of terminals includes multiple second information fields, wherein each second information field in the first indication information is used to indicate whether a terminal in a cell transmits information in the protection band, and each second information field in the second indication information is used to indicate whether a terminal in a cell transmits information outside the protection band.

[0376] In one embodiment, the overlap of the first time-domain unit and the second time-domain unit includes at least one of the following:

[0377] The first and second time domain units partially overlap;

[0378] The first time domain unit and the second time domain unit are the same time domain unit.

[0379] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0380] The embodiments of this disclosure also propose an information transmission system, including a terminal and a network device, wherein the terminal is configured to implement the information transmission method executed by the terminal as described in any of the above embodiments, and the network device is configured to implement the information transmission method executed by the network device as described in any of the above embodiments.

[0381] Embodiments of this disclosure also provide a communication device, comprising: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, it implements the information transmission method executed by a terminal as described in any of the above embodiments.

[0382] Embodiments of this disclosure also provide a communication device, comprising: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, it implements the information transmission method executed by a network device as described in any of the above embodiments.

[0383] Embodiments of this disclosure also propose a computer-readable storage medium for storing a computer program that, when executed by a processor, implements the information transmission method executed by a terminal as described in any of the above embodiments.

[0384] Embodiments of this disclosure also provide a computer-readable storage medium for storing a computer program that, when executed by a processor, implements the information transmission method executed by a network device as described in any of the above embodiments.

[0385] like Figure 17 As shown, Figure 17 This is a schematic block diagram illustrating an apparatus 1700 for information transmission according to an embodiment of the present disclosure. Apparatus 1700 may be a base station. (Refer to...) Figure 17The device 1700 includes a processing component 1722, a wireless transmitting / receiving component 1724, an antenna component 1726, and a signal processing section specific to the wireless interface. The processing component 1722 may further include one or more processors. One of the processors in the processing component 1722 may be configured to implement the information transmission method performed by the network device as described in any of the above embodiments.

[0386] Figure 18 This is a schematic block diagram illustrating an apparatus 1800 for information transmission according to embodiments of the present disclosure. For example, apparatus 1800 may be a terminal, such as a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0387] Reference Figure 18 The device 1800 may include one or more of the following components: a processing component 1802, a memory 1804, a power supply component 1806, a multimedia component 1808, an audio component 1810, an input / output (I / O) interface 1812, a sensor component 1814, and a communication component 1816.

[0388] Processing component 1802 typically controls the overall operation of device 1800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1802 may include one or more processors 1820 to execute instructions to implement all or part of the steps of the information transmission method performed by the terminal as described in any of the above embodiments. Furthermore, processing component 1802 may include one or more modules to facilitate interaction between processing component 1802 and other components. For example, processing component 1802 may include a multimedia module to facilitate interaction between multimedia component 1808 and processing component 1802.

[0389] The memory 1804 is configured to store various types of data to support the operation of the device 1800. Examples of this data include instructions for any application or method operating on the device 1800, contact data, phonebook data, messages, pictures, videos, etc.

[0390] Power supply component 1806 provides power to various components of device 1800. Power supply component 1806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 1800.

[0391] The multimedia component 1808 includes a screen that provides an output interface between the device 1800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user.

[0392] Audio component 1810 is configured to output and / or input audio signals. For example, audio component 1810 includes a microphone (MIC) configured to receive external audio signals when device 1800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1804 or transmitted via communication component 1816. In some embodiments, audio component 1810 also includes a speaker for outputting audio signals.

[0393] I / O interface 1812 provides an interface between processing component 1802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0394] The sensor assembly 1814 includes one or more sensors for providing condition assessments of various aspects of the device 1800.

[0395] Communication component 1816 is configured to facilitate wired or wireless communication between device 1800 and other devices. Device 1800 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G LTE, 5G NR, or combinations thereof. In one exemplary embodiment, communication component 1816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0396] In an exemplary embodiment, the device 1800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the information transmission method executed by the terminal as described in any of the above embodiments.

[0397] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1804 including instructions, which can be executed by a processor 1820 of the device 1800 to complete the information transmission method executed by the terminal as described in any of the above embodiments. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0398] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0399] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An information transmission method, characterized in that, The method, executed by a terminal, includes: Based on the indication information sent by the network device, it is determined whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap, and the indication information includes first downlink control information for instructing a group of terminal actions; When the downlink control information used to indicate the actions of a group of terminals includes a plurality of first information fields, each of the plurality of first information fields is used to indicate whether a terminal transmits information in the protected frequency band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

2. The method according to claim 1, characterized in that, The step of determining whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission based on the indication information sent by the network device includes: Based on the first downlink control information, it is determined whether the guard band is used to transmit information scheduled by the second downlink control information, wherein the second downlink control information is received by the terminal after the first downlink control information.

3. The method according to claim 2, characterized in that, The first downlink control information and the second downlink control information may have the same or different formats.

4. The method according to any one of claims 1 to 3, characterized in that, The time-domain unit includes at least one of the following: Frame, subframe, time slot, symbol.

5. The method according to any one of claims 1 to 3, characterized in that, The overlap between the first time-domain unit and the second time-domain unit includes at least one of the following: The first time-domain unit and the second time-domain unit partially overlap; The first time domain unit and the second time domain unit are the same time domain unit.

6. The method according to any one of claims 1 to 3, characterized in that, The uplink resources include uplink sub-bands in the downlink time domain unit, and the downlink resources include the uplink sub-bands corresponding to the downlink time domain unit and frequency domain resources outside the guard band; or... The uplink resources include uplink sub-bands in the flexible time-domain unit, and the downlink resources include the uplink sub-bands corresponding to the flexible time-domain unit and frequency domain resources outside the guard band; or, the downlink resources include downlink sub-bands in the uplink time-domain unit, and the uplink resources include the downlink sub-bands corresponding to the uplink time-domain unit and frequency domain resources outside the guard band; or... The downlink resources include downlink sub-bands in the flexible time domain unit, and the uplink resources include the downlink sub-bands corresponding to the flexible time domain unit and frequency domain resources outside the guard band.

7. An information transmission method, characterized in that, The method, executed by a terminal, includes: Based on the first indication information sent by the network device, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are determined to be used for information transmission. Based on the second indication information sent by the network device, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are determined not to be used for information transmission. The first time domain unit and the second time domain unit overlap. The first indication information and the second indication information are downlink control information used to indicate a set of terminal actions. When the downlink control information used to indicate the actions of a group of terminals includes multiple first information fields, each first information field in the first indication information is used to indicate that a terminal transmits information in the protection band, and each first information field in the second indication information is used to indicate that a terminal does not transmit information in the protection band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

8. The method according to claim 7, characterized in that, The overlap between the first time-domain unit and the second time-domain unit includes at least one of the following: The first time-domain unit and the second time-domain unit partially overlap; The first time domain unit and the second time domain unit are the same time domain unit.

9. An information transmission method, characterized in that, Performed by a network device, the method includes: Send indication information to the terminal, wherein the indication information is used to indicate whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap, and the indication information includes first downlink control information for indicating a set of terminal actions; When the downlink control information used to indicate the actions of a group of terminals includes a plurality of first information fields, each of the plurality of first information fields is used to indicate whether a terminal transmits information in the protected frequency band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

10. The method according to claim 9, characterized in that, The first downlink control information is used to indicate whether the guard band of the terminal is used to transmit information scheduled by the second downlink control information, which is received by the terminal after the first downlink control information.

11. The method according to claim 10, characterized in that, The first downlink control information and the second downlink control information may have the same or different formats.

12. The method according to any one of claims 9 to 11, characterized in that, The time-domain unit includes at least one of the following: Frame, subframe, time slot, symbol.

13. The method according to any one of claims 9 to 11, characterized in that, The overlap between the first time-domain unit and the second time-domain unit includes at least one of the following: The first time-domain unit and the second time-domain unit partially overlap; The first time domain unit and the second time domain unit are the same time domain unit.

14. The method according to any one of claims 9 to 11, characterized in that, The uplink resources include uplink sub-bands in the downlink time domain unit, and the downlink resources include the uplink sub-bands corresponding to the downlink time domain unit and frequency domain resources outside the guard band; or... The uplink resources include uplink sub-bands in the flexible time-domain unit, and the downlink resources include the uplink sub-bands corresponding to the flexible time-domain unit and frequency domain resources outside the guard band; or... The downlink resources include downlink sub-bands in the uplink time domain unit, and the uplink resources include the downlink sub-bands corresponding to the uplink time domain unit and frequency domain resources outside the guard band; or... The downlink resources include downlink sub-bands in the flexible time domain unit, and the uplink resources include the downlink sub-bands corresponding to the flexible time domain unit and frequency domain resources outside the guard band.

15. An information transmission method, characterized in that, Performed by a network device, the method includes: Send a first indication information to the terminal, wherein the first indication information is used to indicate one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal for transmitting information, wherein the first time domain unit and the second time domain unit overlap, and the first indication information and the second indication information are downlink control information for indicating a set of terminal actions; When the downlink control information used to indicate the actions of a group of terminals includes multiple first information fields, each first information field in the first indication information is used to indicate that a terminal transmits information in the protection band, and each first information field in the second indication information is used to indicate that a terminal does not transmit information in the protection band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

16. The method according to claim 15, characterized in that, The overlap between the first time-domain unit and the second time-domain unit includes at least one of the following: The first time-domain unit and the second time-domain unit partially overlap; The first time domain unit and the second time domain unit are the same time domain unit.

17. An information transmission device, characterized in that, The device includes: The processing module is configured to determine, based on indication information sent by a network device, whether one or more guard bands between the uplink resources of a first time domain unit and the downlink resources of a second time domain unit are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap, and the indication information includes first downlink control information for instructing a group of terminal actions; When the downlink control information used to indicate the actions of a group of terminals includes a plurality of first information fields, each of the plurality of first information fields is used to indicate whether a terminal transmits information in the protected frequency band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

18. An information transmission device, characterized in that, The device includes: The processing module is configured to determine, based on a first indication information sent by the network device, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are used for information transmission, and to determine, based on a second indication information sent by the network device, one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit are not used for information transmission, wherein the first time domain unit and the second time domain unit overlap, and the first indication information and the second indication information are downlink control information for instructing a group of terminal actions; When the downlink control information used to indicate the actions of a group of terminals includes multiple first information fields, each first information field in the first indication information is used to indicate that a terminal transmits information in the protection band, and each first information field in the second indication information is used to indicate that a terminal does not transmit information in the protection band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

19. An information transmission device, characterized in that, The device includes: An indication module is configured to send indication information to a terminal, wherein the indication information is used to indicate whether one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal are used for transmitting information, wherein the first time domain unit and the second time domain unit overlap, and the indication information includes first downlink control information for indicating a set of terminal actions; When the downlink control information used to indicate the actions of a group of terminals includes a plurality of first information fields, each of the plurality of first information fields is used to indicate whether a terminal transmits information in the protected frequency band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

20. An information transmission device, characterized in that, The device includes: The indication module is configured to send first indication information to the terminal, wherein the first indication information is used to indicate one or more guard bands between the uplink resources of the first time domain unit and the downlink resources of the second time domain unit of the terminal for transmitting information, wherein the first time domain unit and the second time domain unit overlap, and the first indication information and the second indication information are downlink control information for indicating a set of terminal actions; When the downlink control information used to indicate the actions of a group of terminals includes multiple first information fields, each first information field in the first indication information is used to indicate that a terminal transmits information in the protection band, and each first information field in the second indication information is used to indicate that a terminal does not transmit information in the protection band. Alternatively, if the downlink control information used to indicate the actions of a group of terminals includes a plurality of second information fields, each of the plurality of second information fields is used to indicate whether a terminal in a cell transmits information in the guard band.

21. An information transmission system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the information transmission method according to any one of claims 1 to 8, and the network device is configured to implement the information transmission method according to any one of claims 9 to 16.

22. A communication device, characterized in that, include: processor; Memory used to store computer programs; When the computer program is executed by a processor, it implements the information transmission method according to any one of claims 1 to 8.

23. A communication device, characterized in that, include: processor; Memory used to store computer programs; When the computer program is executed by a processor, it implements the information transmission method according to any one of claims 9 to 16.

24. A computer-readable storage medium for storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the information transmission method according to any one of claims 1 to 8.

25. A computer-readable storage medium for storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the information transmission method according to any one of claims 9 to 16.

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