Information transmission method, device, terminal, network side equipment and readable storage medium

Abstract

The present application discloses an information transmission method, apparatus, terminal, network-side equipment and readable storage medium, which belongs to the field of communication technology. The information transmission method of an embodiment of the present application includes: the terminal receives a first signaling sent by the network-side equipment; wherein the first signaling includes at least one of the following: first indication information, used to instruct the terminal to switch the transmission waveform; waveform information, used to determine information of the target transmission waveform.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to an information transmission method, apparatus, terminal, network-side equipment, and readable storage medium. Background Art

[0002] Waveform switching is an uplink enhancement technology used in wireless communication systems. It is based on the dynamic switching technology between the cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform and the discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) waveform. The terminal can select the appropriate waveform for transmission under the corresponding channel state conditions.

[0003] In related technologies, a terminal can only transmit based on an existing waveform configuration, resulting in low transmission performance of the terminal. Summary of the Invention

[0004] The embodiments of the present application provide an information transmission method, apparatus, terminal, network-side device, and readable storage medium, which can solve the problem of low transmission performance of the terminal.

[0005] In a first aspect, a method for transmitting information is provided, the method comprising:

[0006] The terminal receives first signaling sent by a network-side device, wherein the first signaling includes at least one of the following:

[0007] First instruction information, used to instruct the terminal to switch the transmission waveform;

[0008] Waveform information is used to determine the target transmission waveform.

[0009] In a second aspect, an information transmission method is provided, the method comprising:

[0010] The network-side device sends a first signaling to the terminal; wherein the first signaling includes at least one of the following:

[0011] First instruction information, used to instruct the terminal to switch the transmission waveform;

[0012] Waveform information is used to determine the target transmission waveform.

[0013] In a third aspect, an information transmission device is provided, which is applied to a terminal and includes:

[0014] A receiving module, configured to receive a first signaling sent by a network-side device; wherein the first signaling includes at least one of the following:

[0015] The first instruction information is used to instruct the terminal to switch the transmission waveform;

[0016] Waveform information is used to determine the target transmission waveform.

[0017] In a fourth aspect, an information transmission device is provided, which is applied to a network-side device, including:

[0018] A sending module, configured to send a first signaling to a terminal; wherein the first signaling includes at least one of the following:

[0019] First instruction information, used to instruct the terminal to switch the transmission waveform;

[0020] Waveform information is used to determine the target transmission waveform.

[0021] In a fifth aspect, a terminal is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0022] In the sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a first signaling sent by a network side device; wherein the first signaling includes at least one of the following: first indication information, used to instruct the terminal to switch the transmission waveform; waveform information, used to determine information of the target transmission waveform.

[0023] In the seventh aspect, a network side device is provided, which terminal includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0024] In an eighth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is configured to send a first signaling to a terminal; wherein the first signaling includes at least one of the following:

[0025] First instruction information, used to instruct the terminal to switch the transmission waveform;

[0026] Waveform information is used to determine the target transmission waveform.

[0027] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0028] In the tenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0029] In the eleventh aspect, a computer program / program product is provided, which is stored in a non-volatile storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0030] In an embodiment of the present application, after the terminal receives the first signaling sent by the network side device, it can obtain the waveform switching indication and / or the waveform after switching by parsing the first signaling. Then, the terminal can dynamically switch the waveform based on the waveform switching indication and / or the waveform after switching, and then use the waveform after switching for uplink transmission, which can effectively improve the transmission performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a wireless communication system provided in an embodiment of the present application;

[0032] Figure 2 This is one of the flow charts of the information transmission method provided in the embodiment of the present application;

[0033] Figure 3 This is a schematic diagram of an embodiment of the present application providing an FDRA field in a DCI carrying first indication information and / or waveform information;

[0034] Figure 4 This is the second flow chart of the information transmission method provided in the embodiment of the present application;

[0035] Figure 5 This is one of the structural diagrams of the information transmission device provided in the embodiment of the present application;

[0036] Figure 6 This is the second structural diagram of the information transmission device provided in the embodiment of the present application;

[0037] Figure 7 This is one of the structural diagrams of the terminal provided in the embodiment of the present application;

[0038] Figure 8 This is the second structural diagram of the terminal provided in the embodiment of the present application;

[0039] Figure 9 This is one of the structural diagrams of the network side device provided in the embodiment of the present application;

[0040] Figure 10 This is the second structural diagram of the network side device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0042] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0043] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0044] Figure 1 Schematic diagram of the structure of the wireless communication system provided by the embodiment of the present application. Figure 1As shown, the wireless communication system includes: a terminal 11 and a network-side device 12. The terminal 11 can also be called a terminal device or a user equipment (UE). The terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted equipment (VUE), a pedestrian terminal (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture), and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0045] The information transmission method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0046] An embodiment of the present application provides an information transmission method, which can be applied to a wireless communication system that supports dynamic waveform switching. The terminal supports dynamic waveform switching. After receiving a first signaling sent by a network-side device, the terminal can obtain a waveform switching indication and / or a waveform after switching by parsing the first signaling. The terminal can then dynamically switch waveforms based on the waveform switching indication and / or the waveform after switching, and then use the switched waveform for uplink transmission, which can effectively improve the transmission performance of the terminal.

[0047] For example, when channel conditions are good, the network-side device can instruct the terminal to use the CP-OFDM waveform with a higher transmission rate for uplink transmission. In some cases, such as when the terminal is at the edge of the cell and the signal is weak, in order to effectively ensure service transmission performance, the network-side device sends a dynamic switching instruction or the switched waveform to the terminal in real time. The terminal switches from the CP-OFDM waveform to the DFT-S-OFDM waveform and uses the DFT-S-OFDM waveform for uplink transmission.

[0048] Figure 2 This is one of the flow charts of the information transmission method provided in the embodiment of the present application, such as Figure 2 As shown, the method includes:

[0049] Step 201: The terminal receives a first signaling sent by a network-side device; wherein the first signaling includes at least one of the following: first indication information, used to instruct the terminal to switch the transmission waveform; waveform information, used to determine information of a target transmission waveform.

[0050] It should be noted that the embodiments of the present application can be applied to wireless communication systems that support waveform switching; terminals include but are not limited to the types of terminals 11 listed above; network-side devices include but are not limited to the types of network-side devices 12 listed above, and this application does not limit this. In the embodiments of the present application, the first signaling may include only the first indication information or the waveform information, or may include both the first indication information and the waveform information.

[0051] Optionally, the first signaling may include downlink control information (Downlink Control Information, DCI); the DCI includes the first indication information and / or the waveform information.

[0052] Optionally, the target transmission waveform may include: a CP-OFDM waveform or a DFT-S-OFDM waveform. The target transmission waveform may be a waveform after switching indicated by the network-side device. It is understandable that the target transmission waveform may be a waveform used by the terminal to send uplink data to the network-side device through the PUSCH, or a waveform used by the physical sidelink shared channel (PSSCH) for sidelink communication between terminals.

[0053] Taking the DFT-S-OFDM waveform as an example, when the terminal uses the CP-OFDM waveform for uplink transmission and receives the first signaling carrying the DFT-S-OFDM waveform sent by the network side device, the terminal dynamically switches the waveform from using the CP-OFDM waveform to using the DFT-S-OFDM waveform for uplink transmission.

[0054] Optionally, the first indication information is used to instruct the terminal to switch the transmission waveform, that is, the first indication information is used to instruct the terminal to dynamically switch the current waveform to another waveform.

[0055] Taking the current waveform as a DFT-S-OFDM waveform and the other waveform as a CP-OFDM waveform as an example, the explanation is as follows: When the terminal uses the DFT-S-OFDM waveform for uplink transmission, when it receives the first signaling carrying first indication information sent by the network side device, the terminal dynamically switches the waveform from using the DFT-S-OFDM waveform to using the CP-OFDM waveform for uplink transmission.

[0056] In the information transmission method provided in the embodiment of the present application, after the terminal receives the first signaling sent by the network side device, it can obtain the waveform switching indication and / or the waveform after switching by parsing the first signaling. Then, the terminal can dynamically switch the waveform based on the waveform switching indication and / or the waveform after switching, and then use the waveform after switching for uplink transmission, which can effectively improve the transmission performance of the terminal.

[0057] Optionally, after the terminal receives the first signaling sent by the network side device, the terminal determines the target resource allocation method and the size of the frequency domain resource allocation (FDRA) field in the DCI according to the first signaling; then, the terminal transmits a signal that meets the target transmission waveform based on the frequency domain resources determined according to the target resource allocation method and the size of the FDRA field.

[0058] For example, when the network side device uses the existing information field in the DCI, such as the FDRA field carrying the first indication information and / or waveform information, in order to support the frequency domain resource allocation requirements required for the CP-OFDM waveform and the DFT-S-OFDM waveform, the network side device needs to indicate the frequency domain resource configuration information of the target transmission waveform (i.e., the waveform after switching) in addition to carrying the first indication information and / or waveform information in the FDRA field. This requires the terminal to determine the size of the FDRA field in the DCI, so that the terminal and the network side device have a consistent understanding of the content and size of the FDRA field, thereby supporting dynamic switching of the transmission waveform and effectively improving the transmission performance of the terminal.

[0059] The following describes an implementation scheme for determining, by a terminal in a dynamic waveform switching scenario, the size of the FDRA field in the DCI and the target resource allocation method actually used by the terminal.

[0060] 1. The implementation method for the terminal to determine the target resource allocation method actually used by the terminal in the dynamic waveform switching scenario may include any of the following methods:

[0061] Method 1: The network-side device uses a MAC CE message to indicate the target resource allocation method actually used by the terminal.

[0062] Mode 2: The first signaling also includes a target resource allocation mode; that is, the network side device carries the target resource allocation mode actually used by the terminal in addition to the first indication information and / or the waveform information in the first signaling sent to the terminal.

[0063] Specifically, when the first signaling includes the target resource allocation mode, the terminal parses the first signaling to obtain the target resource allocation mode.

[0064] Mode 3: The terminal determines the target resource allocation mode actually used by the terminal according to the target transmission waveform indicated by the network-side device.

[0065] 2. The terminal may determine the target resource allocation mode and the size of the FDRA field in the DCI according to the first signaling in any of the following ways:

[0066] Specifically, the terminal learns from the first signaling that the network-side device instructs the terminal to perform dynamic waveform switching, thereby determining the target resource allocation method and the size of the FDRA field in the DCI. In practice, the terminal may determine the target resource allocation method and the size of the FDRA field in the DCI based on the first signaling in any of the following ways:

[0067] Mode a: When the terminal receives the first signaling, it determines that the target resource allocation mode is the first resource allocation mode; the first resource allocation mode is a resource continuous resource allocation mode; the terminal determines the size of the FDRA field as a first reference value.

[0068] In mode a, when configuring dynamic waveform switching, the network-side device configures both waveforms (such as the CP-OFDM waveform and the DFT-S-OFDM waveform) to use the first resource allocation mode, that is, the resource allocation mode configured by the network-side device is the first resource allocation mode, and the first resource allocation mode is a resource-continuous resource allocation mode. For example, the first resource allocation mode may be uplink spectrum resource allocation mode 1 (i.e., type 1). In this case, the network-side device can implicitly indicate to the terminal by sending a first signaling to the terminal: the resource allocation mode configured by the network-side device is the first resource allocation mode.

[0069] Upon receiving the first signaling, the terminal learns based on the first signaling that the network device instructs the terminal to perform dynamic waveform switching, and directly determines the target resource allocation mode as the first resource allocation mode; the terminal determines the size of the FDRA field as the first reference value. The target resource allocation mode refers to the uplink spectrum resource allocation mode actually adopted by the terminal.

[0070] For example, when the first resource allocation mode is type 1, the first reference value can be in, Indicates the number of resource blocks (RBs) included in the uplink bandwidth part (Bandwidth Part, BWP).

[0071] Mode b: The terminal determines a target transmission waveform according to the first signaling, and then determines a target resource allocation mode and a size of the FDRA field in the DCI according to the target transmission waveform.

[0072] In mode b, the resource allocation mode configured by the network-side device for different waveforms (such as CP-OFDM waveform or DFT-S-OFDM waveform) may be different. Specifically, the terminal can determine the target transmission waveform based on the first signaling and obtain the resource allocation mode configured by the network-side device. Then, based on the target transmission waveform and the resource allocation mode configured by the network-side device, the target resource allocation mode and the size of the FDRA field in the DCI are jointly determined; wherein the target resource allocation mode refers to the uplink spectrum resource allocation mode actually adopted by the terminal.

[0073] In the embodiment of the present application, the terminal may determine the target resource allocation mode and the size of the FDRA field in the DCI according to the target transmission waveform in any of the following ways:

[0074] Method 1: When the resource allocation method configured by the terminal on the network side device is the second resource allocation method, and the target transmission waveform includes a CP-OFDM waveform, the target resource allocation method is determined to be the second resource allocation method, and the size of the FDRA domain is determined to be a second reference value; the second resource allocation method is a non-continuous resource allocation method.

[0075] In an embodiment of the present application, the second resource allocation mode is a non-continuous resource allocation mode, for example, the second resource allocation mode is resource allocation mode 0 (ie, type 0). The resource allocation mode configured by the terminal on the network side device is type 0 (or, the resource allocation mode configured by the network side device is dynamic switching (dynamic), but the resource allocation mode indicated by the DCI is type 0), and the target transmission waveform is a CP-OFDM waveform, that is, when the network side device instructs the terminal to switch from the DFT-S-OFDM waveform to the CP-OFDM waveform for uplink transmission, or when the network side device instructs the terminal to use the CP-OFDM waveform for uplink transmission, the terminal determines that the target resource allocation mode is the second resource allocation mode, and determines the size of the FDRA field as the second reference value. For example, the second reference value is N RBG , N RBG is the number of resource block groups (RBGs). After the waveform is switched to the CP-OFDM waveform, when the terminal performs CP-OFDM waveform mapping, it can actually use the second resource allocation method (e.g., type 0) for mapping to support CP-OFDM. Optionally, after the waveform is switched to the CP-OFDM waveform, when the terminal performs CP-OFDM waveform mapping, it can also use the first resource allocation method (e.g., type 1) for mapping.

[0076] Method 2: When the resource allocation mode configured by the terminal on the network side device is the second resource allocation mode and the target transmission waveform includes a DFT-S-OFDM waveform, the target resource allocation mode is determined to be the first resource allocation mode, and the size of the FDRA domain is determined to be a third reference value; the third reference value is greater than the second reference value.

[0077] Here, the second resource allocation mode is type0 as an example. When the resource allocation mode configured by the terminal on the network side device is type0 (or the resource allocation mode configured by the network side device is dynamic switching (dynamic), but the resource allocation mode indicated by the DCI is type 0), and the target transmission waveform is a DFT-S-OFDM waveform, the terminal needs to switch from using the CP-OFDM waveform to using the DFT-S-OFDM waveform, and determine the size of the FDRA field as the third reference value; the size of the FDRA field should be extended from the second reference value to the third reference value. In this case, the terminal determines that the target resource allocation mode is the first resource allocation mode; after switching the waveform to the DFT-S-OFDM waveform, when the terminal performs DFT-S-OFDM waveform mapping, it actually uses the first resource allocation mode (such as type 1) for mapping, so as to support DFT-S-OFDM. For example, the third reference value can be in, Indicates the number of RBs included in the uplink BWP, N RBG Indicates the number of RBGs.

[0078] Mode 3: When the resource allocation mode configured by the network side device is the first resource allocation mode, the terminal determines that the target resource allocation mode is the first resource allocation mode, and determines the size of the FDRA field as the first reference value.

[0079] Here, the first resource allocation mode is type1. When the resource allocation mode configured by the network side device is type1, the terminal determines that the target resource allocation mode is the first resource allocation mode, and the terminal determines the size of the FDRA field as the first reference value based on type1. For example, the first reference value is in, Indicates the number of RBs included in the uplink BWP.

[0080] Mode 4: When the resource allocation mode configured by the network side device is dynamic switching, the terminal determines the size of the FDRA field as a third reference value; and determines the target resource allocation mode according to the size of the FDRA field.

[0081] Optionally, when the resource allocation mode configured by the network side device is dynamic switching, the terminal will determine the target resource allocation mode through the specific size of the FDRA size in the DCI or the DCI setting field. At this time, in order to ensure that the terminal can support two waveforms at the same time, the size of the FDRA field (FDRA size) can be a third reference value. For example, the third reference value can be in, Indicates the number of RBs included in the uplink BWP, N RBGIndicates the number of RBGs.

[0082] Method 5: When the target transmission waveform includes a DFT-S-OFDM waveform and the resource allocation method configured by the network-side device is the third resource allocation method, the terminal determines that the target resource allocation method is the first resource allocation method, and determines the size of the FDRA domain as the fourth reference value; the third resource allocation method is a resource allocation method based on an unlicensed frequency band.

[0083] In the embodiment of the present application, the third resource allocation mode is a resource allocation mode based on an unlicensed frequency band, for example, the third resource allocation mode is resource allocation mode 2 (i.e., type 2). Type 2 can be a mapping mode of the New Radio Unlicensed Spectrum (NRU).

[0084] Specifically, when the resource allocation mode configured by the terminal on the network side device is type 2 and the target transmission waveform is a DFT-S-OFDM waveform, when the terminal needs to switch from using the CP-OFDM waveform to using the DFT-S-OFDM waveform, the size of the FDRA field is determined to be the fourth reference value, and the target resource allocation mode is determined to be the first resource allocation mode, that is, the terminal can actually use the first resource allocation mode (for example, type 1, or other resource continuous resource allocation modes) for mapping, so as to support DFT-S-OFDM.

[0085] The fourth reference value is the maximum value between the third reference value and the fifth reference value;

[0086] The fifth reference value can be calculated using the following formula (1) or formula (2):

[0087] D=5+Y (1)

[0088] D=6+Y (2)

[0089] Wherein, D is the fifth reference value, The number of RBs in the RB set included in the unlicensed band uplink BWP.

[0090] In an embodiment of the present application, at least M least significant bits (LSB) or most significant bits (MSB) are reserved in each FDRA field for indicating a specific FDRA resource block, that is, for indicating frequency domain resource configuration information. In practice, the terminal determines the size of the FDRA field in the DCI based on the target transmission waveform and the target resource allocation method configured by the network-side device, and then obtains the frequency domain resource configuration information indicated by the FDRA field based on the M LSB or MSB information in the FDRA field.

[0091] Optionally, when waveform switching is enabled, the terminal does not expect to configure resource allocation mode 0 supporting the CP-OFDM waveform. That is, the terminal does not expect to configure type 0 for the CP-OFDM waveform after the waveform switching function is enabled.

[0092] In the embodiment of the present application, the first signaling may include DCI; and an implementation manner of carrying the first indication information and / or waveform information in the DCI may include at least one of the following:

[0093] a) The first indication information and / or waveform information are included in an additional new field in the DCI. Specifically, a new information field or information segment is added to the DCI, for example, a waveform switch field of at least 1 bit is added to the DCI. This new information field carries the first indication information and / or waveform information, indicating whether waveform switching is enabled.

[0094] b) including the first indication information and / or waveform information in a target field in the DCI; wherein the target field refers to an existing information field or an existing information field in the DCI. Specifically, the target field may include at least one of the following: an FDRA field, an antenna port field, and a Transmitted Precoding Matrix Indicator (TPMI) field.

[0095] Here, the implementation method of the target domain in the embodiment of the present application is described as follows:

[0096] Method 1: When the target domain in the DCI includes an FDRA domain, the FDRA domain may include N1 bits and N2 bits, the N1 bit is used to carry the first indication information and / or the waveform information; the N2 bit is used to indicate the frequency domain resource configuration information of the target transmission waveform.

[0097] The number of bits in the N1-bit field is N1, and the number of bits in the N2-bit field is N2. Both N1 and N2 are integers greater than or equal to 1. The N1-bit field can be the N1-LSB bit in the FDRA field, or the N1-MSB bit in the FDRA field, or any N1-bit field in the FDRA field. Optionally, the number of bits in the N1-bit field is less than the number of bits in the N2-bit field. The N2-bit field can be at least one bit in the FDRA field other than the N1-bit field.

[0098] For example, the network-side device configures the N1 bit in the FDRA field, and carries the first indication information and / or waveform information in the N1 bit, which is used to indicate waveform switching or indicate the waveform after switching, so that the terminal switches the waveform to a CP-OFDM waveform or a DFT-S-OFDM waveform. The network-side device configures the N2 bit in the FDRA field, and carries the frequency domain resource configuration information of the target transmission waveform in the N2 bit, which is used to indicate the allocation of specific physical resource blocks (PRBs) of the frequency domain resources and other information.

[0099] In order to support the frequency domain resource allocation requirements of CP-OFDM waveform and DFT-S-OFDM waveform, method 1 needs to expand the size of FDRA. For example, the number of bits of FDRA field can be N RBG ,or Among them, N RBG Indicates the number of RBGs, Indicates the number of RBs included in the uplink BWP.

[0100] Figure 3 Schematic diagram of the FDRA field in the DCI carrying the first indication information and / or waveform information provided by an embodiment of the present application; Figure 3 As shown, the first N1 bits of the FDRA field can be used to indicate waveform switching or indicate the waveform after switching, and the N2 bits are used to indicate the frequency domain resource configuration information of the waveform after switching, which can support the frequency domain resources required by the waveform after switching.

[0101] Method 2: When the target domain in the DCI includes an antenna port domain, the antenna port domain includes N3 bits and N4 bits, and the N3 bit is used to carry the first indication information and / or the waveform information; the N4 bit is used to indicate the antenna port configuration information corresponding to the target transmission waveform.

[0102] Among them, the number of bits of the N3 bit is N3, and the number of bits of the N4 bit is N4; N3 and N4 are both integers greater than or equal to 1. In order to support dynamic waveform switching, the reserve bit of the antenna port domain can be reused. The N3 bit and the N4 bit can be reserved bits in the antenna port domain in the DCI. The reserve bit in the antenna port domain is used to carry the first indication information and / or waveform information, and the antenna port configuration information corresponding to the target transmission waveform; the first indication information and / or waveform information is used to indicate waveform switching or indicate the waveform after switching, and the antenna port configuration information corresponding to the target transmission waveform is used to indicate the antenna port number corresponding to the waveform after switching, so that the terminal switches the waveform to a CP-OFDM waveform or a DFT-S-OFDM waveform.

[0103] For example, the network-side device configures the N3 bit in the antenna port field, and carries the first indication information and / or waveform information in the N3 bit, which is used to indicate waveform switching or indicate the waveform after switching, so that the terminal switches the waveform to a CP-OFDM waveform or a DFT-S-OFDM waveform. The network-side device configures the N4 bit in the antenna port field, and carries the corresponding antenna port configuration information in the N4 bit, which is used to indicate the antenna port number.

[0104] Here, the reserve bit of the multiplexed antenna port domain is illustrated as an example: for a CP-OFDM waveform with a demodulation reference signal (DMRS) type=1, a maximum length (maxlength)=2, and a rank=3, the indication method of the CP-OFDM waveform is shown in Table 1.

[0105] Table 1

[0106]

[0107] In an embodiment of the present application, the 2-bit reserve bit in the antenna port field is used to indicate the waveform switch to the DFT-S-OFDM waveform or to indicate the waveform and waveform configuration after the switch. Optionally, if it is necessary to switch from the DFT-S-OFDM waveform back to the CP-OFDM waveform, the change in layer mapping information is used to implicitly indicate the switch, and the bits in the antenna port field other than the reserve bit are used to indicate the configuration.

[0108] Among them, Value represents the value of the DMRS port indication information field; Number of DMRS CDM group(s)without data represents the number of DMRS CDM groups without data; DMRS port(s) represents the DMRS port set; Number of front-load symbols represents the number of front-load DMRS symbols.

[0109] Mode 3: When the target field in the DCI includes a TPMI field, the TPMI field includes N5 bits, and the N5 bits are used to carry the first indication information and / or the waveform information.

[0110] The number of bits of the N5 bits is N5, and N5 is an integer greater than or equal to 1.

[0111] Optionally, the TPMI field includes information about the number of layers of the signal and information about the target transmission waveform corresponding to the precoding information. In practice, the TPMI field in the DCI can be expanded and the expanded bits can be used as N5 bits. The expanded N5 bits in the TPMI field are used to carry the first indication information and / or waveform information to indicate waveform switching or indicate the waveform after switching, so that the terminal switches the currently used waveform from the CP-OFDM waveform to the DFT-S-OFDM waveform, or from the DFT-S-OFDM waveform to the CP-OFDM waveform.

[0112] Method 4: When the target field in the DCI includes the TPMI field, the TPMI field's indication is reused. A column is added to the TPMI table to predefine which waveform to use in configurations where both CP-OFDM and DFT-S-OFDM waveforms are supported. Taking Table 2 as an example, and taking the 4-port CP waveform as an example, for configurations that support both CP-OFDM and DFT-S-OFDM waveforms, a column is added to Table 2 to indicate waveform switching or the waveform configuration after switching.

[0113] For example, if the code point (codepoint) / index (index) is 000001, if the corresponding waveform configuration is a DFT waveform, then the DFT waveform is used; if the terminal currently uses the CP waveform, it indicates to switch the waveform.

[0114] Table 2

[0115]

[0116] Figure 4 This is the second flow chart of the information transmission method provided in the embodiment of the present application, such as Figure 4As shown, the method includes:

[0117] Step 401: The network side device sends a first signaling to the terminal; wherein the first signaling includes at least one of the following: first indication information, used to instruct the terminal to switch the transmission waveform; waveform information, used to determine information of the target transmission waveform.

[0118] It should be noted that the embodiments of the present application can be applied to wireless communication systems that support waveform switching; terminals include but are not limited to the types of terminals 11 listed above; network-side devices include but are not limited to the types of network-side devices 12 listed above, and this application does not limit this. In the embodiments of the present application, the first signaling may include only the first indication information or the waveform information, or may include both the first indication information and the waveform information.

[0119] In the information transmission method provided in the embodiment of the present application, when the network side device needs to switch the waveform, there is no need to perform RRC reconfiguration, but instead sends a waveform switching indication and / or a switched waveform to the terminal through a first signaling. The terminal dynamically switches the waveform based on the waveform switching indication and / or the switched waveform, and then can use the switched waveform for uplink transmission, which can effectively improve the transmission performance of the terminal.

[0120] Optionally, the target resource allocation mode configured by the network side device for the terminal may be a first resource allocation mode; the first resource allocation mode is a resource continuous resource allocation mode. In practice, when configuring dynamic waveform switching, the network side device configures both waveforms (such as CP-OFDM waveform and DFT-S-OFDM waveform) to use the first resource allocation mode, such as type 1. In this case, the network side device implicitly instructs the terminal to use the first resource allocation mode for the target transmission waveform by sending a first signaling to the terminal. When the terminal receives the first signaling, it can directly determine that the target resource allocation mode is the first resource allocation mode, and then the terminal determines the size of the FDRA field as the first reference value based on the first resource allocation mode.

[0121] It should be noted that the information transmission method provided in the embodiments of the present application can be executed by an information transmission device, or a control module in the information transmission device for executing the information transmission method. In the embodiments of the present application, the information transmission device provided in the embodiments of the present application is described by taking the information transmission device executing the information transmission method as an example.

[0122] Figure 5 This is one of the structural diagrams of the information transmission device provided in the embodiment of the present application, such as Figure 5 As shown, the information transmission device 500, applied to a terminal, includes:

[0123] The receiving module 501 is configured to receive a first signaling sent by a network-side device; wherein the first signaling includes at least one of the following:

[0124] The first instruction information is used to instruct the terminal to switch the transmission waveform;

[0125] Waveform information is used to determine the target transmission waveform.

[0126] The information transmission device provided in an embodiment of the present application receives a first signaling sent by a network-side device. The first signaling includes first indication information for instructing a terminal to switch a transmission waveform, and / or waveform information for determining information of a target transmission waveform. The terminal can obtain the uplink waveform switching indication and the waveform after switching by parsing the first signaling, and then determine the size of the FDRA domain according to the waveform after switching. The FDRA domain can indicate the frequency domain resource configuration of the waveform after switching, thereby supporting dynamic switching of the transmission waveform and effectively improving the transmission performance of the terminal.

[0127] Optionally, the information transmission device 500 further includes:

[0128] The determination module is used to determine the target resource allocation mode and the size of the frequency domain resource allocation FDRA field in the downlink control information DCI according to the first signaling.

[0129] Optionally, a module is determined, specifically for:

[0130] Upon receiving the first signaling, determining that the target resource allocation mode is a first resource allocation mode; the first resource allocation mode is a resource continuous resource allocation mode;

[0131] The size of the FDRA field is determined as a first reference value.

[0132] Optionally, a module is determined, specifically for:

[0133] determining a target transmission waveform according to the first signaling;

[0134] According to the target transmission waveform, a target resource allocation mode and a size of the FDRA field in the DCI are determined.

[0135] Optionally, a module is determined, specifically for:

[0136] When the resource allocation mode configured by the network-side device is the second resource allocation mode and the target transmission waveform includes a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform, determining that the target resource allocation mode is the second resource allocation mode, and determining the size of the FDRA field as a second reference value; the second resource allocation mode is a non-contiguous resource allocation mode;

[0137] When the resource allocation mode configured by the network side device is the second resource allocation mode and the target transmission waveform includes a discrete Fourier transform extended orthogonal frequency division multiplexing DFT-S-OFDM waveform, the target resource allocation mode is determined to be the first resource allocation mode, and the size of the FDRA domain is determined to be a third reference value; the third reference value is greater than the second reference value.

[0138] Optionally, the determination module is specifically configured to, when the resource allocation mode configured in the network side device is the first resource allocation mode, determine the target resource allocation mode as the first resource allocation mode, and determine the size of the FDRA field as a first reference value.

[0139] Optionally, the determining module is specifically configured to determine, when the resource allocation mode configured in the network side device is dynamic switching, the size of the FDRA field as a third reference value;

[0140] The target resource allocation mode is determined according to the size of the FDRA field.

[0141] Optionally, the determination module is specifically used to determine that the target resource allocation mode is the first resource allocation mode, and determine the size of the FDRA domain as a fourth reference value when the target transmission waveform includes a DFT-S-OFDM waveform and the resource allocation mode configured by the network side device is the third resource allocation mode; the third resource allocation mode is a resource allocation mode based on an unlicensed frequency band.

[0142] Optionally, the information transmission device 500 further includes:

[0143] A transmission module is configured to transmit a signal meeting the target transmission waveform based on the frequency domain resources determined according to the target resource allocation mode and the size of the FDRA field in the DCI.

[0144] Optionally, the information transmission device 500 further includes:

[0145] An acquisition module is used to acquire the frequency domain resource configuration information indicated by the FDRA domain based on M-bit LSB or MSB information in the FDRA domain; the M is a positive integer.

[0146] Optionally, the first signaling includes DCI; the DCI includes the first indication information and / or the waveform information.

[0147] Optionally, the additional new field in the DCI includes the first indication information and / or the waveform information;

[0148] Alternatively, the target field in the DCI includes the first indication information and / or the waveform information.

[0149] Optionally, the target domain includes at least one of the following: an FDRA domain, an antenna port domain, and a transmit precoding matrix indication TPMI domain.

[0150] Optionally, when the target domain includes the FDRA domain, the FDRA domain includes N1 bits and N2 bits, the N1 bit is used to carry the first indication information and / or the waveform information; the N2 bit is used to indicate the frequency domain resource configuration information of the target transmission waveform; and N1 and N2 are both positive integers.

[0151] Optionally, when the target domain includes the antenna port domain, the antenna port domain includes N3 bits and N4 bits, the N3 bits are used to carry the first indication information and / or the waveform information; the N4 bits are used to indicate the antenna port configuration information corresponding to the target transmission waveform; and N3 and N4 are both positive integers.

[0152] Optionally, when the target domain includes the TPMI domain, the TPMI domain includes N5 bits, and the N5 bits are used to carry the first indication information and / or the waveform information; the N5 is an integer greater than or equal to 1.

[0153] Optionally, the TPMI domain includes information about the number of signal layers and information about the target transmission waveform corresponding to precoding information.

[0154] Optionally, the first signaling also includes: a target resource allocation method.

[0155] Optionally, the terminal does not expect to configure resource allocation mode 0 supporting CP-OFDM waveform when waveform switching is enabled.

[0156] Figure 6 This is the second structural diagram of the information transmission device provided in the embodiment of the present application, such as Figure 6 As shown, the information transmission device 600 is applied to a network-side device and includes:

[0157] The sending module 601 is configured to send a first signaling to a terminal, wherein the first signaling includes at least one of the following:

[0158] First instruction information, used to instruct the terminal to switch the transmission waveform;

[0159] Waveform information is used to determine the target transmission waveform.

[0160] The information transmission device provided in the embodiment of the present application does not require RRC reconfiguration when waveform switching is required. Instead, a waveform switching indication and / or a switched waveform is sent to the terminal through a first signaling. The terminal dynamically switches the waveform based on the waveform switching indication and / or the switched waveform, and then can use the switched waveform for uplink transmission, which can effectively improve the transmission performance of the terminal.

[0161] Optionally, the information transmission device 600 further includes:

[0162] The configuration module is configured to configure a target resource allocation mode for the terminal as a first resource allocation mode; the first resource allocation mode is a resource continuous resource allocation mode.

[0163] The information transmission device in the embodiments of the present application can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal can include but is not limited to the types of terminal 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an ATM or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

[0164] The information transmission device provided in the embodiment of the present application can achieve Figures 2 to 4 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0165] Figure 7 This is one of the schematic diagrams of the structure of the terminal provided in the embodiment of the present application; Figure 7 As shown, the terminal 700 provided in the embodiment of the present application includes a processor 701, a memory 702, and a program or instruction stored in the memory 702 and executable on the processor 701. When the program or instruction is executed by the processor 701, each process of the above-mentioned information transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0166] This embodiment of the present application also provides a terminal, including a processor and a communication interface; the communication interface is configured to receive first signaling sent by a network-side device; wherein the first signaling includes at least one of the following: first indication information for instructing the terminal to switch transmission waveforms; and waveform information for determining a target transmission waveform. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and all implementation processes and methods of the aforementioned method embodiment are applicable to this terminal embodiment and can achieve the same technical effects.

[0167] Figure 8 This is the second structural diagram of the terminal provided in the embodiment of the present application; Figure 8 As shown, the terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and at least some of the components of the processor 810.

[0168] Those skilled in the art will appreciate that the terminal 800 may further include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 810 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. 8 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0169] It should be understood that in an embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processor 8041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0170] In this embodiment of the present application, the radio frequency unit 801 receives downlink data from the network-side device and transmits it to the processor 810 for processing. Furthermore, the radio frequency unit 801 transmits uplink data to the network-side device. Typically, the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0171] The memory 809 can be used to store software programs or instructions and various data. The memory 809 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, at least one application program or instruction required for a function (such as a sound playback function, an image playback function, etc.). In addition, the memory 809 may include a high-speed random access memory and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0172] Processor 810 may include one or more processing units. Optionally, processor 810 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs or instructions, while the modem processor primarily processes wireless communications, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 810.

[0173] The radio frequency unit 801 is configured to receive a first signaling sent by a network-side device; wherein the first signaling includes at least one of the following:

[0174] First instruction information, used to instruct the terminal to switch the transmission waveform;

[0175] Waveform information is used to determine the target transmission waveform.

[0176] The terminal provided in an embodiment of the present application receives a first signaling sent by a network-side device. The first signaling includes first indication information for instructing the terminal to switch the transmission waveform, and / or waveform information for determining the target transmission waveform. The terminal can obtain the uplink waveform switching indication and the waveform after switching by parsing the first signaling, and then determine the size of the FDRA domain according to the waveform after switching. The FDRA domain can indicate the frequency domain resource configuration of the waveform after switching, thereby supporting dynamic switching of the transmission waveform and effectively improving the transmission performance of the terminal.

[0177] Optionally, the processor 810 is configured to determine, according to the first signaling, a target resource allocation mode and a size of a frequency domain resource allocation FDRA field in the downlink control information DCI.

[0178] Optionally, the processor 810 is specifically configured to:

[0179] Upon receiving the first signaling, determining that the target resource allocation mode is a first resource allocation mode; the first resource allocation mode is a resource continuous resource allocation mode;

[0180] The size of the FDRA field is determined as a first reference value.

[0181] Optionally, the processor 810 is specifically configured to:

[0182] determining a target transmission waveform according to the first signaling;

[0183] According to the target transmission waveform, a target resource allocation mode and a size of the FDRA field in the DCI are determined.

[0184] Optionally, the processor 810 is specifically configured to:

[0185] When the resource allocation mode configured by the network-side device is the second resource allocation mode and the target transmission waveform includes a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform, determining that the target resource allocation mode is the second resource allocation mode, and determining the size of the FDRA field as a second reference value; the second resource allocation mode is a non-contiguous resource allocation mode;

[0186] When the resource allocation mode configured by the network side device is the second resource allocation mode and the target transmission waveform includes a discrete Fourier transform extended orthogonal frequency division multiplexing DFT-S-OFDM waveform, the target resource allocation mode is determined to be the first resource allocation mode, and the size of the FDRA domain is determined to be a third reference value; the third reference value is greater than the second reference value.

[0187] Optionally, the processor 810 is specifically configured to, when the resource allocation mode configured in the network side device is the first resource allocation mode, determine that the target resource allocation mode is the first resource allocation mode, and determine that the size of the FDRA field is a first reference value.

[0188] Optionally, the processor 810 is specifically configured to, when the resource allocation mode configured in the network side device is dynamic switching, determine the size of the FDRA field as a third reference value;

[0189] The target resource allocation mode is determined according to the size of the FDRA field.

[0190] Optionally, the processor 810 is specifically used to determine that the target resource allocation mode is the first resource allocation mode, and determine the size of the FDRA domain as a fourth reference value when the target transmission waveform includes a DFT-S-OFDM waveform and the resource allocation mode configured by the network side device is the third resource allocation mode; the third resource allocation mode is a resource allocation mode based on an unlicensed frequency band.

[0191] Optionally, the radio frequency unit 801 is specifically configured to transmit a signal meeting the target transmission waveform based on the frequency domain resources determined according to the target resource allocation mode and the size of the FDRA field in the DCI.

[0192] Optionally, the processor 810 is further configured to obtain frequency domain resource configuration information indicated by the FDRA domain based on M-bit LSB or MSB information in the FDRA domain; M is a positive integer.

[0193] Optionally, the first signaling includes DCI; the DCI includes the first indication information and / or the waveform information.

[0194] Optionally, the additional new field in the DCI includes the first indication information and / or the waveform information;

[0195] Alternatively, the target field in the DCI includes the first indication information and / or the waveform information.

[0196] Optionally, the target domain includes at least one of the following: an FDRA domain, an antenna port domain, and a transmit precoding matrix indication TPMI domain.

[0197] Optionally, when the target domain includes the FDRA domain, the FDRA domain includes N1 bits and N2 bits, the N1 bit is used to carry the first indication information and / or the waveform information; the N2 bit is used to indicate the frequency domain resource configuration information of the target transmission waveform; and N1 and N2 are both positive integers.

[0198] Optionally, when the target domain includes the antenna port domain, the antenna port domain includes N3 bits and N4 bits, the N3 bits are used to carry the first indication information and / or the waveform information; the N4 bits are used to indicate the antenna port configuration information corresponding to the target transmission waveform; and N3 and N4 are both positive integers.

[0199] Optionally, when the target domain includes the TPMI domain, the TPMI domain includes N5 bits, and the N5 bits are used to carry the first indication information and / or the waveform information; the N5 is an integer greater than or equal to 1.

[0200] Optionally, the TPMI domain includes information about the number of signal layers and information about the target transmission waveform corresponding to precoding information.

[0201] Optionally, the first signaling also includes: a target resource allocation method.

[0202] Optionally, the terminal does not expect to configure resource allocation mode 0 supporting CP-OFDM waveform when waveform switching is enabled.

[0203] An embodiment of the present application also provides a network-side device, including a processor and a communication interface, the communication interface being configured to send a first signaling to a terminal; wherein the first signaling includes at least one of the following: first indication information for instructing the terminal to switch transmission waveforms; and waveform information for determining a target transmission waveform. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and method of the aforementioned method embodiment is applicable to this network-side device embodiment and can achieve the same technical effects.

[0204] Figure 9 This is one of the structural diagrams of the network side device provided in the embodiment of the present application, such as Figure 9 As shown, network device 900 includes an antenna 901, a radio frequency device 902, and a baseband device 903. Antenna 901 is connected to radio frequency device 902. In the uplink direction, radio frequency device 902 receives information via antenna 901 and sends the received information to baseband device 903 for processing. In the downlink direction, baseband device 903 processes the information to be transmitted and sends it to radio frequency device 902. Radio frequency device 902 processes the received information and then sends it through antenna 901.

[0205] The frequency band processing device may be located in the baseband device 903 . The method performed by the network-side device in the above embodiment may be implemented in the baseband device 903 . The baseband device 903 includes a processor 904 and a memory 905 .

[0206] The baseband device 903 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 9 As shown, one of the chips is, for example, a processor 904, which is connected to a memory 905 to call a program in the memory 905 and execute the network-side device operations shown in the above method embodiment.

[0207] The baseband device 903 may further include a network interface 906 for exchanging information with the radio frequency device 902 . The interface may be, for example, a common public radio interface (CPRI).

[0208] Specifically, the network side device of the embodiment of the present invention also includes: instructions or programs stored in the memory 905 and can be run on the processor 904. The processor 904 calls the instructions or programs in the memory 905, executes the steps of the above-mentioned network side device method embodiment, and achieves the same technical effect. To avoid repetition, it will not be repeated here.

[0209] Figure 10 This is the second structural diagram of the network side device provided in the embodiment of the present application, such as Figure 10 As shown, the network side device 1000 includes a processor 1001, a memory 1002, and a program or instruction stored in the memory 1002 and executable on the processor 1001. When the program or instruction is executed by the processor 1001, each process of the above-mentioned information transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0210] An embodiment of the present application also provides a readable storage medium, which can be volatile or non-volatile. The readable storage medium stores a program or instruction. When the program or instruction is executed by the processor, the various processes of the above-mentioned information transmission method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0211] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[0212] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned information transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0213] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0214] An embodiment of the present application also provides a computer program / program product, which is stored in a non-volatile storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned information transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0215] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0216] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0217] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An information transmission method, characterized in that: include: The terminal receives first signaling sent by a network-side device, wherein the first signaling includes at least one of the following: First instruction information, used to instruct the terminal to switch the transmission waveform; Waveform information, used to determine the target transmission waveform; After the terminal receives the first signaling sent by the network side device, the method further includes: The terminal determines, according to the first signaling, a target resource allocation mode and a size of a frequency domain resource allocation FDRA field in the downlink control information DCI; the FDRA field is used to indicate frequency domain resource configuration information of a target transmission waveform; The terminal determines, according to the first signaling, a target resource allocation mode and a size of a frequency domain resource allocation FDRA field in downlink control information DCI, including: The terminal determines a target transmission waveform according to the first signaling; The terminal determines, according to the target transmission waveform, a target resource allocation mode and a size of an FDRA field in a DCI; The terminal determines, according to the target transmission waveform, a target resource allocation mode and a size of an FDRA field in a DCI, including: The terminal determines, when the resource allocation mode configured by the network-side device is the second resource allocation mode and the target transmission waveform includes a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform, that the target resource allocation mode is the second resource allocation mode, and determines the size of the FDRA field as a second reference value; the second resource allocation mode is a non-contiguous resource allocation mode; When the resource allocation mode configured by the network side device is the second resource allocation mode and the target transmission waveform includes a discrete Fourier transform extended orthogonal frequency division multiplexing DFT-S-OFDM waveform, the terminal determines that the target resource allocation mode is the first resource allocation mode and determines the size of the FDRA domain as a third reference value; the third reference value is greater than the second reference value.

2. The information transmission method according to claim 1, wherein: The terminal determines, according to the first signaling, a target resource allocation mode and a size of a frequency domain resource allocation FDRA field in downlink control information DCI, including: Upon receiving the first signaling, the terminal determines that the target resource allocation mode is a first resource allocation mode; the first resource allocation mode is a resource continuous resource allocation mode; The terminal determines the size of the FDRA field as a first reference value.

3. The information transmission method according to claim 1, wherein: The terminal determines, according to the target transmission waveform, a target resource allocation mode and a size of an FDRA field in a DCI, including: When the resource allocation mode configured by the network side device is the first resource allocation mode, the terminal determines that the target resource allocation mode is the first resource allocation mode, and determines the size of the FDRA field as a first reference value.

4. The information transmission method according to claim 1, wherein: The terminal determines, according to the target transmission waveform, a target resource allocation mode and a size of an FDRA field in a DCI, including: The terminal determines, when the resource allocation mode configured by the network side device is dynamic switching, that the size of the FDRA field is a third reference value; The target resource allocation mode is determined according to the size of the FDRA field.

5. The information transmission method according to claim 1, wherein: The terminal determines, according to the target transmission waveform, a target resource allocation mode and a size of an FDRA field in a DCI, including: When the target transmission waveform includes a DFT-S-OFDM waveform and the resource allocation mode configured by the network side device is the third resource allocation mode, the terminal determines that the target resource allocation mode is the first resource allocation mode and determines the size of the FDRA domain as the fourth reference value; the third resource allocation mode is a resource allocation mode based on an unlicensed frequency band.

6. The information transmission method according to any one of claims 1 to 5, characterized in that: After the terminal determines the target resource allocation mode and the size of the FDRA field in the DCI according to the target transmission waveform, the method further includes: The terminal transmits a signal meeting the target transmission waveform according to the frequency domain resources determined by the target resource allocation mode and the size of the FDRA field in the DCI.

7. The information transmission method according to any one of claims 1 to 5, characterized in that: After the terminal determines the target resource allocation mode and the size of the FDRA field in the DCI according to the target transmission waveform, the method further includes: The terminal obtains the frequency domain resource configuration information indicated by the FDRA field based on M-bit LSB or MSB information in the FDRA field; M is a positive integer.

8. The information transmission method according to claim 1, wherein: The first signaling includes DCI; the DCI includes the first indication information and / or the waveform information.

9. The method according to claim 8, characterized in that The additional new field in the DCI includes the first indication information and / or the waveform information; Alternatively, the target field in the DCI includes the first indication information and / or the waveform information.

10. The information transmission method according to claim 9, characterized in that: The target field includes at least one of the following: an FDRA field, an antenna port field, and a transmit precoding matrix indication TPMI field.

11. The information transmission method according to claim 10, characterized in that: In the case where the target domain includes the FDRA domain, the FDRA domain includes N1 bits and N2 bits, the N1 bit is used to carry the first indication information and / or the waveform information; the N2 bit is used to indicate the frequency domain resource configuration information of the target transmission waveform; and N1 and N2 are both positive integers.

12. The information transmission method according to claim 10, characterized in that: When the target domain includes the antenna port domain, the antenna port domain includes N3 bits and N4 bits, the N3 bits are used to carry the first indication information and / or the waveform information; the N4 bits are used to indicate the antenna port configuration information corresponding to the target transmission waveform; and N3 and N4 are both positive integers.

13. The information transmission method according to claim 10, characterized in that: In a case where the target domain includes the TPMI domain, the TPMI domain includes N5 bits, and the N5 bits are used to carry the first indication information and / or the waveform information; and N5 is an integer greater than or equal to 1.

14. The information transmission method according to claim 10, characterized in that: The TPMI field includes information about the number of signal layers and information about the target transmission waveform corresponding to precoding information.

15. The information transmission method according to claim 1, wherein: The first signaling also includes: a target resource allocation method.

16. The information transmission method according to claim 1, wherein: The terminal does not desire to configure resource allocation mode 0 supporting CP-OFDM waveform when waveform switching is enabled.

17. An information transmission method, characterized in that: include: The network-side device sends a first signaling to the terminal; wherein the first signaling includes at least one of the following: First instruction information, used to instruct the terminal to switch the transmission waveform; Waveform information, used to determine the target transmission waveform; The first signaling is used to enable the terminal to determine the target transmission waveform according to the first signaling; determine the target resource allocation mode and the size of the FDRA field in the DCI according to the target transmission waveform; specifically including: when the resource allocation mode configured by the network side device is the second resource allocation mode, and the target transmission waveform includes a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, determine the target resource allocation mode to be the second resource allocation mode, and determine the size of the FDRA field to be a second reference value; the second resource allocation mode is a resource non-continuous resource allocation mode; when the resource allocation mode configured by the network side device is the second resource allocation mode, and the target transmission waveform includes a discrete Fourier transform spread orthogonal frequency division multiplexing DFT-S-OFDM waveform, determine the target resource allocation mode to be the first resource allocation mode, and determine the size of the FDRA field to be a third reference value; the third reference value is greater than the second reference value; the FDRA field is used to indicate the frequency domain resource configuration information of the target transmission waveform.

18. The information transmission method according to claim 17, characterized in that: The method further comprises: The resource allocation mode configured by the network side device for the terminal is a first resource allocation mode; the first resource allocation mode is a resource continuous resource allocation mode.

19. An information transmission device, applied to a terminal, characterized in that: include: A receiving module, configured to receive a first signaling sent by a network-side device; wherein the first signaling includes at least one of the following: The first instruction information is used to instruct the terminal to switch the transmission waveform; Waveform information, used to determine the target transmission waveform; The information transmission device further includes: A determination module, configured to determine, according to the first signaling, a target resource allocation mode and a size of a frequency domain resource allocation FDRA field in the downlink control information DCI; the FDRA field is used to indicate frequency domain resource configuration information of a target transmission waveform; The determining module is specifically configured to determine a target transmission waveform according to the first signaling; and determine a target resource allocation mode and a size of an FDRA field in a DCI according to the target transmission waveform; The determination module is specifically used to determine that the target resource allocation mode is the second resource allocation mode when the resource allocation mode configured by the network side device is the second resource allocation mode and the target transmission waveform includes a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, and determine that the size of the FDRA domain is a second reference value; the second resource allocation mode is a resource non-continuous resource allocation mode; when the resource allocation mode configured by the network side device is the second resource allocation mode and the target transmission waveform includes a discrete Fourier transform spread orthogonal frequency division multiplexing DFT-S-OFDM waveform, determine that the target resource allocation mode is the first resource allocation mode and determine that the size of the FDRA domain is a third reference value; the third reference value is greater than the second reference value.

20. An information transmission device, applied to a network side device, characterized in that: include: A sending module, configured to send a first signaling to a terminal; wherein the first signaling includes at least one of the following: First instruction information, used to instruct the terminal to switch the transmission waveform; Waveform information, used to determine the target transmission waveform; The first signaling is used to enable the terminal to determine the target transmission waveform according to the first signaling; determine the target resource allocation mode and the size of the FDRA field in the DCI according to the target transmission waveform; specifically including: when the resource allocation mode configured by the network side device is the second resource allocation mode, and the target transmission waveform includes a cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform, determine the target resource allocation mode to be the second resource allocation mode, and determine the size of the FDRA field to be a second reference value; the second resource allocation mode is a resource non-continuous resource allocation mode; when the resource allocation mode configured by the network side device is the second resource allocation mode, and the target transmission waveform includes a discrete Fourier transform spread orthogonal frequency division multiplexing DFT-S-OFDM waveform, determine the target resource allocation mode to be the first resource allocation mode, and determine the size of the FDRA field to be a third reference value; the third reference value is greater than the second reference value; the FDRA field is used to indicate the frequency domain resource configuration information of the target transmission waveform.

21. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the information transmission method according to any one of claims 1 to 16.

22. A network side device, characterized in that: It includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the information transmission method according to claim 17 or 18.

23. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the information transmission method according to any one of claims 1 to 16, or implements the steps of the information transmission method according to claim 17 or 18.

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