Signal transmission method and apparatus, terminal, network side device, and medium

Abstract

The present application relates to the technical field of communications, and discloses a signal transmission method and apparatus, a terminal, a network side device, and a medium. The signal transmission method in the embodiments of the present application comprises: a terminal transmits a first signal on the basis of a first parameter, wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, a resource allocation position of the first channel, the transmit power of the first channel, the modulation order of the first channel, a waveform of the first channel, a PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and a PAPR of the first signal.

Description

Signal transmission methods, devices, terminals, network-side equipment and media

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411569482.2, filed in China on November 5, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, specifically relating to a signal transmission method, apparatus, terminal, network-side equipment, and medium. Background Technology

[0004] Currently, the peak-to-average power ratio (PAPR) of the Physical Uplink Shared Channel (PUSCH) is usually high, requiring power back-off to reduce distortion caused by the nonlinearity of the power amplifier (PA) in order to ensure the quality of the PUSCH signal.

[0005] However, for the demodulation reference signal (DMRS) corresponding to PUSCH, the power of DMRS and the power of PUSCH are determined with reference to the same parameters, which leads to the power limitation of DM-RS and reduces the performance of channel estimation. Summary of the Invention

[0006] This application provides a signal transmission method, apparatus, terminal, network-side device, and medium that enables the DMRS power to reach the maximum value achievable under different parameters, thereby improving the channel estimation performance and thus improving the transmission performance of PUSCH with different parameters.

[0007] In a first aspect, a signal transmission method is provided, executed by a terminal, the method comprising: the terminal transmitting a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0008] Secondly, a signal transmission method is provided, executed by a network-side device, the method comprising: the network-side device receiving a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0009] Thirdly, a signal transmission device is provided, the device including a transmitting module; the transmitting module is used to transmit a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0010] Fourthly, a signal transmission apparatus is provided, the apparatus including a receiving module; the receiving module is configured to receive a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0011] Fifthly, a signal transmission apparatus is provided, the apparatus being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0012] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0013] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to transmit a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0014] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0015] A ninth aspect provides a network-side device, including a processor and a communication interface, wherein the communication interface is used to receive a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0016] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0017] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0018] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0019] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0020] In this embodiment, the terminal transmits a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. Through this scheme, when the terminal transmits the first signal corresponding to the first channel, it can base its transmission on a first parameter related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. Thus, the first parameter used to transmit the first signal varies depending on the modulation and waveform of the first channel, ensuring that the power of the first signal under different parameters can reach the maximum value achievable under this configuration, improving the performance of channel estimation and thereby improving the transmission performance of the first channel with different parameters. Attached Figure Description

[0021] Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application;

[0022] Figure 2 is a flowchart of a signal transmission method provided in an embodiment of this application;

[0023] Figure 3 is a flowchart of another signal transmission method provided in an embodiment of this application;

[0024] Figure 4 is a schematic diagram of a signal transmission device provided in an embodiment of this application;

[0025] Figure 5 is a schematic diagram of another signal transmission device provided in an embodiment of this application;

[0026] Figure 6 is a schematic diagram of the communication device provided in an embodiment of this application;

[0027] Figure 7 is a schematic diagram of the hardware structure of the terminal provided in an embodiment of this application;

[0028] Figure 8 is a schematic diagram of the hardware structure of the network-side device provided in an embodiment of this application. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0030] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0032] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0033] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side device 12 may include access network equipment, which can also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (APs), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0034] The signal transmission method, apparatus, terminal, network-side equipment, and medium provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0035] This application provides a signal transmission method, and Figure 2 shows a flowchart of the signal transmission method provided by this application. As shown in Figure 2, the signal transmission method provided by this application may include the following step 201.

[0036] Step 201: The terminal sends a first signal based on the first parameter.

[0037] Wherein, the first signal corresponds to the first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0038] Optionally, in the embodiments of this application, the first signal may include, but is not limited to, any of the following: Sounding Reference Signal (SRS), DMRS, Phase-tracking Reference Signal (PTRS), etc.

[0039] Optionally, in the embodiments of this application, the first channel may include, but is not limited to, any of the following: PUSCH, Physical Uplink Control Channel (PUCCH).

[0040] Optionally, in the embodiments of this application, the first parameter may include, but is not limited to, any one of the following:

[0041] The ratio of the energy per resource element (EPRE) of the first channel to the EPRE of the first signal;

[0042] In addition to the ratio determined based on the number of Code Division Multiplexing (CDM) groups without data; for example, assuming that when the CDM group without data corresponding to the PUSCH transmission is 1, the ratio of the EPRE of the first channel to the EPRE of the first signal determined by the terminal is -3dB, and additionally, if the first parameter determined based on the signal transmission method provided in the embodiments of this application is less than 0, then the final ratio of the EPRE of the first channel to the EPRE of the first signal is less than -3dB.

[0043] The ratio of the EPRE of the first signal to the EPRE of the first channel;

[0044] The power increase of the first signal compared to the first channel. For example, the power of the first signal is increased by X dB compared to the power of the first channel.

[0045] Optionally, in this embodiment, the first channel and the first signal use the same antenna port.

[0046] Optionally, in this embodiment of the application, the first signal port corresponds to the transmission layer of the first channel.

[0047] Optionally, in this embodiment, when the first parameter is related to the type of the first channel, the value of the first parameter can be different for different types of the first channel. For example, the absolute value of the first parameter corresponding to PUCCH is greater than or less than the absolute value of the first parameter corresponding to PUSCH.

[0048] Optionally, in this embodiment, when the first parameter is related to the resource allocation location of the first channel, the value of the first parameter can be different for different resource allocation locations of the first channel. For example, the closer the resource location is to the edge of the entire band, the smaller the absolute value of the first parameter; the closer the resource location is to the center of the entire band, the larger the absolute value of the first parameter. As another example, the wider the bandwidth of the resource allocation, i.e., the more Physical Resource Blocks (PRBs), the smaller the absolute value of the first parameter; conversely, the wider the bandwidth of the resource allocation, i.e., the fewer the PRBs, the larger the absolute value of the first parameter. Again, the wider the bandwidth of the resource allocation, i.e., the more Physical Resource Blocks (PRBs), the larger the absolute value of the first parameter; conversely, the wider the bandwidth of the resource allocation, i.e., the fewer the PRBs, the smaller the absolute value of the first parameter.

[0049] Optionally, in this embodiment, the first parameter is related to the number of CDM groups without data in the DMRS. When the number of CDM groups without data is greater than or equal to 1, the first parameter is not 0.

[0050] Optionally, in this embodiment of the application, when the first parameter is related to the transmission power of the first channel, the value of the first parameter corresponding to different transmission powers of the first channel can be different.

[0051] Optionally, in this embodiment, when the first parameter is related to the modulation order of the first channel, the value of the first parameter can be different for different modulation orders of the first channel. For example, the higher the modulation order of the first channel, the larger the absolute value of the first parameter; conversely, the lower the modulation order of the first channel, the smaller the absolute value of the first parameter. Alternatively, the higher the modulation order of the first channel, the smaller the absolute value of the first parameter; conversely, the lower the modulation order of the first channel, the larger the absolute value of the first parameter.

[0052] Optionally, in this embodiment, when the first parameter is related to the waveform of the first channel, the value of the first parameter corresponding to different waveforms of the first channel can be different. For example, the absolute value of the first parameter corresponding to the Discrete Fourier Transform (DFT)-Spread (S)-Orthogonal Frequency Division Multiplexing (OFDM) waveform is smaller than the absolute value of the first parameter corresponding to the Cyclic Prefix (CP)-OFDM waveform. Alternatively, the absolute value of the first parameter corresponding to the DFT-S-OFDM waveform is larger than the absolute value of the first parameter corresponding to the CP-OFDM waveform.

[0053] It should be noted that the DFT-s-OFDM waveform is enabled via network-side indication.

[0054] Optionally, in this embodiment, when the first parameter is related to the PAPR of the first channel, the value of the first parameter can be different for different PAPRs of the first channel. For example, the larger the PAPR of the first channel, the larger the absolute value of the first parameter; conversely, the smaller the PAPR of the first channel, the smaller the absolute value of the first parameter.

[0055] Optionally, in the embodiments of this application, the first parameter is related to the PAPR of the DMRS, or to the PAPR difference between the DMRS and the data.

[0056] Optionally, in this embodiment, when the first parameter is related to the type of the first signal, the value of the first parameter will be different if the types of the first signal configuration are different. For example, taking the first signal as DMRS, the absolute value of the first parameter corresponding to type 1 DMRS is different from the absolute value of the first parameter corresponding to type 2 DM-RS.

[0057] Optionally, in this embodiment, when the first parameter is related to the number of symbols of the first signal, the value of the first parameter will also be different if the number of symbols configured for the first signal is different. For example, taking the first signal as DMRS, when there is only one symbol in DMRS, the value of the first parameter may be non-zero or zero.

[0058] Optionally, in the embodiments of this application, the value of the first parameter may not be 0 if the first condition is met.

[0059] The first condition includes at least one of the following:

[0060] The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal;

[0061] The modulation order of the first channel is the first modulation order;

[0062] The bandwidth of the first channel is greater than or equal to the first bandwidth;

[0063] The waveform of the first channel is the first waveform.

[0064] Optionally, in this embodiment, the transmission power of the first channel can be the transmission power calculated based on the power control parameters of the first channel, or it can be the actual transmission power determined based on the power boost of the first signal.

[0065] Optionally, in the embodiments of this application, the first modulation order can be QPSK, 256 Quadrature Amplitude Modulation (QAM), or 1024QAM, etc.

[0066] Optionally, in this embodiment of the application, the bandwidth of the first channel being greater than or equal to the first bandwidth may include: the number of PRBs allocated to the first channel being greater than or equal to the target number of PRBs.

[0067] Optionally, in the embodiments of this application, the first waveform is DFT-s-OFDM.

[0068] In this embodiment of the application, since the value of the first parameter can be non-zero when the first condition is met, the power of the first signal can be increased as much as possible without distortion, thereby obtaining a greater performance gain.

[0069] Optionally, in this embodiment, the first parameter may be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal.

[0070] Among them, the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0071] Optionally, in the embodiments of this application, the first parameter may be reported by the terminal to the network-side device, configured or indicated by the network-side device, agreed upon by the protocol, or determined based on power back-off information.

[0072] For example, if the first parameter is determined by the configuration or indication of the network-side device, the first parameter may be configured by the network-side Radio Resource Control (RRC); wherein, the RRC may be configured to have the first parameter, or the RRC may be configured to say that the first signal is associated with the first parameter.

[0073] For example, if the first parameter is determined based on power back-off information, the first parameter is not equal to 0 when the back-off value represented by the power back-off information is greater than a target value; or, when the back-off value represented by the power back-off information is the power back-off value of the first signal, the first parameter can be equal to the power back-off value of the first signal, or the absolute value of the first parameter can be less than the power back-off value of the first signal.

[0074] In this embodiment of the application, since the first parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal, the first parameter can be determined in different ways, thereby improving the flexibility of determining the first parameter.

[0075] Optionally, in the embodiments of this application, the first signal corresponding to the first channel may include at least one of the following:

[0076] The port of the first signal corresponds to the transmission layer of the first channel;

[0077] The antenna port of the first signal is the same as the antenna port of the first channel.

[0078] In this embodiment of the application, since the port of the first signal corresponds to the transmission layer of the first channel, and / or the antenna port of the first signal is the same as the antenna port of the first channel, the terminal can send different signals corresponding to the first channel based on the first parameters, thereby further obtaining greater performance gains.

[0079] Optionally, in the embodiments of this application, step 201 can be specifically implemented by the following steps 201a and 201b.

[0080] Step 201a: The terminal determines the scaling factor of the first signal based on the first parameter.

[0081] The scaling factor is the scaling factor.

[0082] Optionally, in this embodiment, the terminal may determine the scaling factor based on the first parameter using the following formula (1) or formula (2):

[0083] Where, β 第一信号 This represents the ratio of the EPRE of the first channel, determined based on the first signal resources, to the EPRE of the first signal. Alternatively, it represents the ratio of the EPRE of the first channel, determined based on the number of CDM groups without data, to the EPRE of the first signal.

[0084] Step 201b: The terminal sends the first signal using a scaling factor.

[0085] Optionally, in this embodiment of the application, when the terminal precodes the first signal, it may first multiply the scaling factor with the first signal, and then send the signal obtained after multiplication.

[0086] In this embodiment, since the terminal can send the first signal using a scaling factor determined based on the first parameter, the power of the first signal relative to the first channel can be increased in the baseband, reducing the complexity of the implementation process.

[0087] Optionally, in the embodiments of this application, step 201 can be specifically implemented by the following steps 201c and 201d.

[0088] Step 201c: The terminal determines the transmission power of the first signal based on the first parameter.

[0089] Step 201d: The terminal transmits the first signal using the transmission power of the first signal.

[0090] Optionally, in this embodiment of the application, after determining the transmission power of the first signal, the terminal can use the transmission power to transmit the first signal.

[0091] In this embodiment, since the terminal can determine the transmission power of the first signal based on the first parameter and then transmit the first signal using the transmission power, the first parameter can be directly applied to the determination of the transmission power of the first signal, thereby directly achieving a power boost of the first signal relative to the first channel.

[0092] Optionally, in this embodiment of the application, the first signal may correspond to at least two symbols. For example, step 201 can be implemented through step 201e as described below.

[0093] Step 201e: The terminal transmits a first signal based on a first parameter on at least some of the symbols in at least two symbols.

[0094] Optionally, in this embodiment of the application, the terminal may send a first signal based on a first parameter on some or all of the symbols in at least two symbols.

[0095] For example, assuming the first channel corresponds to multiple columns of first signals, then some columns of the multiple columns of first signals can be sent based on the first parameter.

[0096] In this embodiment of the application, since the terminal sends a first signal based on a first parameter on at least some of the symbols in at least two symbols, the network-side device can calculate the first parameter based on the at least some symbols corresponding to the first signal when receiving the first signal, without needing to report through network instructions or the terminal, thereby simplifying the process of obtaining the first parameter when receiving the first signal.

[0097] In the signal transmission method provided in this application embodiment, when a terminal transmits a first signal corresponding to a first channel, it can base the transmission on a first parameter related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. This allows the first parameter based on when transmitting the first signal to be different under different modulation and waveform of the first channel. In this way, the power of the first signal under different parameters can reach the maximum value that can be achieved under this configuration, thereby improving the performance of channel estimation and thus improving the transmission performance of the first channel with different parameters.

[0098] Optionally, in this embodiment, the first parameter may be determined by an indication from a network-side device, which may include an indication of Downlink Control Information (DCI). Exemplarily, the signal transmission method provided in this embodiment may further include step 202 as described below.

[0099] Step 202: The terminal determines the first parameter based on the first information in the DCI.

[0100] The first information includes at least one of the following: an indication field for indicating the first parameter, a modulation and coding scheme (MCS) indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the starting position of the PRB indicated by the frequency domain resource allocation (FDRA) field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0101] For example, taking the first information as an example, the first information includes an indicator field for indicating the first parameter. The indicator field has a bit length of 1 bit and a value of "0" to indicate that the first parameter has a value of 0; the indicator field has a bit length of 1 bit and a value of "1" to indicate that the first parameter has a value of not equal to 0; or the indicator field has a length of ceil(log2(number of first parameters)).

[0102] For example, taking the first information as an example, the MCS indicator field is associated with the first parameter, and the MCS indicator field can indicate both the MCS and the first parameter at the same time.

[0103] For example, taking the first information as an example including an antenna port indication field, the antenna port of one or more first signals used for transmission on the first channel can be associated with the first parameter.

[0104] Optionally, in the embodiments of this application, the indication field, the MCS indication field, and the antenna port indication field used to indicate the first parameter can all explicitly indicate the first parameter.

[0105] Optionally, in the embodiments of this application, the modulation order indicated by the MCS indication field, the starting position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field can all implicitly indicate the first parameter.

[0106] Optionally, in this embodiment of the application, the TDRA (time domain resource asignment) indication field of the DCI indicates the first parameter.

[0107] In this embodiment, since the terminal can determine the first parameter through DCI dynamic indication and then control the power increase of the first signal compared to the first channel, the performance of multi-user scheduling can be guaranteed based on the actual scheduling situation, thereby improving the performance of the entire system; while avoiding excessive power increase of the terminal's first signal, which would increase the interference level to other users and thus affect the data transmission performance of other users.

[0108] Optionally, the signal transmission method provided in this application embodiment may further include the following step 203.

[0109] Step 203: The terminal adjusts the transmission power of the first channel based on the second information.

[0110] The second information includes at least one of the following: configuration information of the first signal, and a second parameter; the second parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0111] Optionally, in this embodiment of the application, the configuration information of the first signal may include the number of symbols of the first signal.

[0112] Optionally, in this embodiment of the application, the second parameter may include at least one of the following: a first parameter, the difference between the transmission power of the first signal and the configured transmission power of the first channel.

[0113] Optionally, in the embodiments of this application, the second parameter may be the same as the first parameter, or it may be a parameter determined based on the first parameter, or it may represent the power scaling amount of the first channel, or it may represent the power boost amount of the first channel determined according to the first signal.

[0114] Optionally, in this embodiment, the difference can be the increase in the transmission power of the first signal compared to the configured transmission power of the first channel.

[0115] Optionally, in this embodiment, when the second parameter is related to the type of the first channel, the value of the second parameter can be different for different types of the first channel. For example, the absolute value of the second parameter corresponding to PUCCH is less than the absolute value of the second parameter corresponding to PUSCH.

[0116] Optionally, in this embodiment, when the second parameter is related to the resource allocation location of the first channel, the value of the second parameter can be different for different resource allocation locations of the first channel. For example, the closer the resource location is to the edge of the entire frequency band, the smaller the absolute value of the second parameter; the closer the resource location is to the center of the entire frequency band, the larger the absolute value of the second parameter. As another example, the wider the bandwidth of the resource allocation, i.e., the more PRBs there are, the smaller the absolute value of the second parameter; conversely, the wider the bandwidth of the resource allocation, i.e., the fewer PRBs there are, the larger the absolute value of the second parameter.

[0117] Optionally, in this embodiment of the application, when the second parameter is related to the transmission power of the first channel, the value of the second parameter corresponding to different transmission powers of the first channel can be different.

[0118] Optionally, in this embodiment, when the second parameter is related to the modulation order of the first channel, the value of the second parameter can be different for different modulation orders of the first channel. For example, the higher the modulation order of the first channel, the larger the absolute value of the second parameter; conversely, the lower the modulation order of the first channel, the smaller the absolute value of the second parameter.

[0119] Optionally, in this embodiment, when the second parameter is related to the waveform of the first channel, the value of the second parameter corresponding to different waveforms of the first channel can be different. For example, the absolute value of the second parameter corresponding to the DFT-s-OFDM waveform is smaller than the absolute value of the second parameter corresponding to the CP-OFDM waveform.

[0120] Optionally, in this embodiment, when the second parameter is related to the PAPR of the first channel, the value of the second parameter can be different for different PAPRs of the first channel. For example, the larger the PAPR of the first channel, the larger the absolute value of the second parameter; conversely, the smaller the PAPR of the first channel, the smaller the absolute value of the second parameter.

[0121] Optionally, in this embodiment, when the second parameter is related to the type of the first signal, the value of the second parameter will be different if the types of the first signal configuration are different. For example, taking the first signal as DMRS, the absolute value of the second parameter corresponding to type 1 DMRS is different from the absolute value of the second parameter corresponding to type 2 DM-RS.

[0122] Optionally, in this embodiment, when the second parameter is related to the number of symbols in the first signal, the value of the second parameter will also be different if the number of symbols configured for the first signal is different. For example, taking the first signal as DMRS, when there is only one symbol in DMRS, the value of the second parameter may be non-zero or zero.

[0123] Optionally, in this embodiment, the terminal may adjust the transmission power of the first channel based on the second information using the following formula (3) or formula (4): Transmit power of the first channel = first power + second parameter (4)

[0124] Wherein, the first power represents the transmit power of the first channel calculated based on network-side indication parameters, or the transmit power determined based on the condition that the EIRE of the first signal and the first channel are the same.

[0125] For example, taking DMRS as the first signal and PUSCH as the first channel, the terminal can determine the transmit power of PUSCH transmission based on the number of OFDM symbols in DMRS, the total number of OFDM symbols during PUSCH transmission, and the second parameter. Here, the transmit power can also represent the actual transmit power corresponding to the PUSCH transmission time.

[0126] Specifically, the transmit power of the PUSCH transmission timing can be determined by formula (3). In formula (3), the first power can represent the transmit power calculated by the terminal based on the power control parameters indicated by the PUSCH; the second parameter can represent the power increase of the DMRS compared to the PUSCH; the number of symbols of the first signal can be represented as the number of all DMRS symbols corresponding to the PUSCH transmission timing, or as the number of symbols of the target DMRS corresponding to the PUSCH transmission timing, where the target DMRS symbols can be represented as the number of preceding DMRS or the number of additional DMRS symbols, etc.

[0127] For example, taking DMRS as the first signal and PUSCH as the first channel, the terminal can determine the transmit power of the PUSCH transmission timing based on the second parameter. The transmit power here can also represent the actual transmit power corresponding to the PUSCH transmission timing.

[0128] Specifically, the transmit power at the PUSCH transmission timing can be determined using formula (4). In formula (4), the first power can represent the transmit power calculated by the terminal based on the power control parameters indicated by the PUSCH; the second parameter can represent the power increase of the DMRS compared to the PUSCH, or it can represent the power increase of the PUSCH determined based on the DMRS. For example, the second parameter = 20 * log10 (number of symbols in the first signal / total number of symbols in the first channel) + power increase of each DMRS compared to the PUSCH.

[0129] In this embodiment, since the terminal's power control is usually determined by time slots or by the transmission opportunity of a first channel, and the total transmission power remains unchanged, an increase in the relative value of the transmission power of the first signal will lead to a decrease in the power of the data symbols of the first channel. Consequently, compared with the receiving power configured on the network side, the actual receiving power becomes smaller, thus affecting the demodulation performance of the data. Therefore, the terminal adjusts the transmission power of the first channel based on the second information to ensure that when the power of the first signal increases, the transmission power of the data symbols of the first channel remains unchanged, thereby ensuring the demodulation performance of the data symbols of the first channel.

[0130] Optionally, in this embodiment of the application, the value of the second parameter may not be 0 if the first condition is met.

[0131] The first condition includes at least one of the following:

[0132] The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal;

[0133] The modulation order of the first channel is the first modulation order;

[0134] The bandwidth of the first channel is greater than or equal to the first bandwidth;

[0135] The waveform of the first channel is the first waveform.

[0136] For a detailed description of the first condition, please refer to the relevant descriptions in the above embodiments. To avoid repetition, they will not be repeated here.

[0137] In this embodiment of the application, since the value of the second parameter can be non-zero when the first condition is met, the first signal can be adjusted by the second parameter to ensure the demodulation performance of the first channel data symbols without distortion.

[0138] Optionally, in this embodiment, the second parameter may be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal.

[0139] Among them, the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0140] Optionally, in the embodiments of this application, the second parameter may be reported by the terminal to the network-side device, configured or indicated by the network-side device, agreed upon by the protocol, or determined based on power back-off information.

[0141] For example, if the second parameter is determined by the configuration or indication of the network-side device, the second parameter may be configured by the network-side signaling RRC; wherein, the RRC configuration may specify whether the second parameter exists, or the RRC configuration may specify that the second parameter is associated with the first signal.

[0142] For example, if the second parameter is determined based on power back-off information, the second parameter is not equal to 0 when the back-off value represented by the power back-off information is greater than a target value; or, when the back-off value represented by the power back-off information is the power back-off value of the first signal, the second parameter can be equal to the power back-off value of the first signal, or the absolute value of the second parameter can be less than the power back-off value of the first signal.

[0143] In this embodiment of the application, since the second parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal, the second parameter can be determined in different ways, thereby improving the flexibility of determining the second parameter.

[0144] Optionally, in this embodiment, the indication of the network-side device may include the indication of DCI. Exemplarily, the signal transmission method provided in this embodiment may further include step 204 as described below.

[0145] Step 204: The terminal determines the second parameter based on the first information in the DCI.

[0146] The first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0147] For a detailed description of step 204, please refer to the relevant description of step 202. To avoid repetition, it will not be repeated here.

[0148] In this embodiment, since the terminal can determine the second parameter through DCI dynamic indication and then adjust the transmission power of the first channel based on the second parameter, the performance of multi-user scheduling can be guaranteed based on the actual scheduling situation, thereby improving the performance of the entire system.

[0149] This application provides another signal transmission method, and Figure 3 shows a flowchart of the signal transmission method provided in this application embodiment. As shown in Figure 3, the signal transmission method provided in this application embodiment may include the following step 301.

[0150] Step 301: The network-side device receives the first signal based on the first parameter.

[0151] Wherein, the first signal corresponds to the first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0152] Optionally, in the embodiments of this application, the value of the first parameter may not be 0 if the first condition is met.

[0153] The first condition includes at least one of the following:

[0154] The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal;

[0155] The modulation order of the first channel is the first modulation order;

[0156] The bandwidth of the first channel is greater than or equal to the first bandwidth;

[0157] The waveform of the first channel is the first waveform.

[0158] Optionally, in this embodiment, the first parameter may be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal.

[0159] Among them, the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0160] Optionally, in the embodiments of this application, the first signal corresponding to the first channel may include at least one of the following:

[0161] The port of the first signal corresponds to the transmission layer of the first channel;

[0162] The antenna port of the first signal is the same as the antenna port of the first channel.

[0163] Optionally, in this embodiment of the application, the first signal may correspond to at least two symbols. For example, step 301 can be implemented through step 301a as described below.

[0164] Step 301a: The network-side device receives a first signal based on a first parameter on at least some of the symbols in at least two symbols.

[0165] In the signal transmission method provided in this application embodiment, when the network-side device receives a first signal corresponding to a first channel, it can base its reception on a first parameter related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. This ensures that the first parameter used to receive the first signal varies depending on the modulation and waveform of the first channel, thus enabling the power of the first signal to reach the maximum value achievable under this configuration under different parameters, improving the performance of channel estimation and consequently enhancing the transmission performance of the first channel with different parameters.

[0166] Optionally, in this embodiment, the indication of the network-side device may include the indication of DCI. Exemplarily, the signal transmission method provided in this embodiment may further include step 302 as described below.

[0167] Step 302: The network-side device sends DCI to the terminal.

[0168] Wherein, DCI includes first information for determining a first parameter, the first information including at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0169] Optionally, in this embodiment of the application, the first information can also be used to determine a second parameter, which is used by the terminal to adjust the transmission power of the first channel. The second parameter may include at least one of the following: the first parameter is the difference between the transmission power of the first signal and the configured transmission power of the first channel.

[0170] Optionally, in this embodiment of the application, the value of the second parameter may not be 0 if the first condition is met.

[0171] The first condition includes at least one of the following:

[0172] The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal;

[0173] The modulation order of the first channel is the first modulation order;

[0174] The bandwidth of the first channel is greater than or equal to the first bandwidth;

[0175] The waveform of the first channel is the first waveform.

[0176] For further descriptions of the signal transmission method provided in the embodiments of this application, please refer to the relevant descriptions in the terminal-side method embodiments. To avoid repetition, they will not be repeated here.

[0177] This application also provides a signal transmission method, which may include the following steps A and B.

[0178] Step A: The terminal sends a first signal based on the first parameter.

[0179] Step B: The network-side device receives the first signal based on the first parameter.

[0180] Wherein, the first signal corresponds to the first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0181] For further descriptions of the signal transmission method provided in the embodiments of this application, please refer to the relevant descriptions in the terminal-side and network-side device method embodiments. To avoid repetition, they will not be repeated here.

[0182] In the signal transmission method provided in this application embodiment, the first signal has a lower PAPR compared to the first channel, and is less affected by PA nonlinearity or other device damage. At the same PA power point, the distortion of the first signal is less than that of the first channel. Therefore, at the same PA output power point, the power of the first signal can be further increased compared to the power of the first channel. While meeting the transmission quality requirements of the first signal, further increasing the transmission power of the first signal can improve the reception quality of the first signal and enhance the measurement performance based on the first signal.

[0183] Each method embodiment, or each possible implementation of each method embodiment, can be executed individually, or, provided there is no contradiction, can be combined with each other. The specific implementation can be determined according to actual usage requirements, and this application embodiment does not impose any restrictions on this.

[0184] This application provides a parameter determination method, which may include the following step 401.

[0185] Step 401: The terminal determines the path loss parameters of the first transmission configuration indication state based on the received first signaling.

[0186] The first signaling includes a first indication field of length 2 bits, which satisfies at least one of the following:

[0187] If the first parameter is configured as separate, the first indication field indicates the uplink bandwidth part (BWP) identifier; if the first parameter is configured as joint, the first indication field indicates the downlink BWP identifier.

[0188] If the second parameter is configured, the first indicator field indicates the uplink BWP identifier; if the second parameter is not configured, the first indicator field indicates the downlink BWP identifier.

[0189] Optionally, in this embodiment, the first signaling may be a Medium Access Control (MAC) control element (CE) used to update the path loss parameter of the first transmission configuration indication state. The first transmission configuration indication state may be indicated by the MAC CE or it may be the currently effective transmission configuration indication (TCI) state. The path loss parameter represents a path loss offset value, which may specifically represent an absolute path loss offset value or a superimposed value based on the path loss offset value configured in the TCI state.

[0190] Optionally, in this embodiment, the first indication field can be used to indicate the BWP.

[0191] Optionally, in this embodiment of the application, the first parameter may indicate the indication mode of the TCI state, such as the unifiedTCI-StateType-r17 parameter.

[0192] Optionally, in this embodiment of the application, the second parameter may represent ul-TCI-ToAddModList-r17.

[0193] For example, the terminal receives network-side signaling MAC CE (first signaling) and determines the path loss parameters of the target TCI state (first transmission configuration indication state) based on the network-side signaling MAC CE. The network-side signaling MAC CE includes a 2-bit BWP indication field (first indication field), which indicates at least one of the following information:

[0194] If unifiedTCI-StateType-r17 (first parameter) is configured as separate, then the BWP field indicates the uplink (UL) BWP identifier (Identity, ID); if unifiedTCI-StateType-r17 is configured as joint, then the BWP field indicates the downlink (DL) BWP ID.

[0195] If ul-TCI-ToAddModList-r17 (the second parameter) is configured, then the BWP field indicates the UL BWP ID; otherwise, the BWP field indicates the DL BWP ID.

[0196] Thus, when the joint TCI state is configured under the DL BWP, the PL offset value can be configured in the joint TCI state; when the separate TCI state is configured, the UL state is configured in the UL BWP, while the PL offset can only be configured in the UL TCI state. This application proposes that the DL BWP and UL BWP share 2 bits, and the RRC parameter is used to determine whether the indication is the UL BWP or the DL BWP, thereby saving the overhead of independent indication.

[0197] The signal transmission method provided in this application can be executed by a signal transmission device. This application uses an example of a signal transmission device executing the signal transmission method to illustrate the signal transmission device provided in this application.

[0198] This application provides a signal transmission device. As an example, the signal transmission device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0199] The signal transmission device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0200] Specifically, referring to Figure 4, when the signal transmission device is a terminal or a component in a terminal, the signal transmission device 40 includes a transmitting module 41.

[0201] The transmitting module 41 can be used to transmit a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0202] In one possible implementation, the value of the first parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0203] In one possible implementation, the first signal corresponds to the first channel and may include at least one of the following: the port of the first signal corresponds to the transmission layer of the first channel; the antenna port of the first signal is the same as the antenna port of the first channel.

[0204] In one possible implementation, the transmitting module 41 can be specifically used to determine a scaling factor for the first signal based on a first parameter; and to transmit the first signal using the scaling factor.

[0205] In one possible implementation, the transmitting module 41 can be specifically used to determine the transmitting power of the first signal based on the first parameter; and to transmit the first signal using the transmitting power of the first signal.

[0206] In one possible implementation, the first parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; wherein the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0207] In one possible implementation, the indication of the network-side device may include the indication of the DCI; the signal transmission device 40 may further include a processing module. The processing module may be used to determine a first parameter based on the first information in the DCI; wherein the first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0208] In one possible implementation, the signal transmission device 40 may further include a processing module. The processing module can be used to adjust the transmission power of the first channel based on second information; wherein the second information includes at least one of the following: configuration information of the first signal, and second parameters; the second parameters are related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0209] In one possible implementation, the second parameter may include at least one of the following: a first parameter, the difference between the transmission power of the first signal and the configured transmission power of the first channel.

[0210] In one possible implementation, the configuration information of the first signal may include the number of symbols of the first signal.

[0211] In one possible implementation, the value of the second parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0212] In one possible implementation, the second parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; wherein the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0213] In one possible implementation, the indication of the network-side device may include the indication of the DCI. The processing module may also be used to determine a second parameter based on first information in the DCI; wherein the first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0214] In one possible implementation, the first signal may correspond to at least two symbols. Specifically, the transmitting module 41 may be used to transmit the first signal based on a first parameter over at least some of the at least two symbols.

[0215] In the signal transmission apparatus provided in this application embodiment, when transmitting a first signal corresponding to a first channel, the signal transmission apparatus can base its transmission on a first parameter related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. This allows the first parameter based on which the transmission of the first signal is based to be different under different modulation and waveform of the first channel. In this way, the power of the first signal under different parameters can reach the maximum value that can be achieved under this configuration, thereby improving the performance of channel estimation and thus improving the transmission performance of the first channel with different parameters.

[0216] The signal transmission device provided in this application embodiment can implement the various processes implemented in the terminal side method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0217] Referring to Figure 5, when the signal transmission device is a network-side device or a component in a network-side device, the signal transmission device 50 includes a receiving module 51.

[0218] The receiving module 51 can be used to receive a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0219] In one possible implementation, the value of the first parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0220] In one possible implementation, the first signal corresponds to the first channel and may include at least one of the following: the port of the first signal corresponds to the transmission layer of the first channel; the antenna port of the first signal is the same as the antenna port of the first channel.

[0221] In one possible implementation, the first parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; wherein the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0222] In one possible implementation, the indication of the network-side device may include the indication of the DCI. The signal transmission device 50 may further include a transmission module. The transmission module may be used to transmit the DCI to the terminal; wherein the DCI includes first information for determining a first parameter, the first information including at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0223] In one possible implementation, the first information can also be used to determine a second parameter, which is used by the terminal to adjust the transmission power of the first channel. The second parameter includes at least one of the following: the first parameter being the difference between the transmission power of the first signal and the configured transmission power of the first channel.

[0224] In one possible implementation, the value of the second parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0225] In one possible implementation, the first signal may correspond to at least two symbols. The receiving module 51 may specifically be used to receive the first signal based on a first parameter on at least some of the at least two symbols.

[0226] In the signal transmission apparatus provided in this application embodiment, when receiving a first signal corresponding to a first channel, the signal transmission apparatus can base its reception on a first parameter related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. This allows the first parameter used to receive the first signal to vary depending on the modulation and waveform of the first channel, thus ensuring that the power of the first signal under different parameters can reach the maximum value achievable under this configuration, improving the performance of channel estimation and thereby improving the transmission performance of the first channel with different parameters.

[0227] The signal transmission device provided in this application embodiment can implement all the processes implemented in the network-side device method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0228] As shown in Figure 6, this application embodiment also provides a communication device 100, including a processor 101 and a memory 102. The memory 102 stores programs or instructions that can run on the processor 101. For example, when the communication device 100 is a terminal, the program or instructions executed by the processor 101 implement the various steps of the terminal-side method embodiment and achieve the same technical effect. When the communication device 100 is a network-side device, the program or instructions executed by the processor 101 implement the various steps of the network-side device method embodiment and achieve the same technical effect. To avoid repetition, this will not be described again here.

[0229] This application also provides a terminal, including 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 steps in the terminal-side method embodiment. This terminal embodiment corresponds to the terminal-side method embodiment; all implementation processes and methods of the method embodiment can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be the signal transmission device shown in Figure 4. Specifically, Figure 7 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0230] The terminal 1000 includes, but is not limited to, at least some of the following components: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0231] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 1010 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 7 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0232] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processor 10041 and a microphone 10042. The graphics processor 10041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0233] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network-side device. Typically, the radio frequency unit 1001 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0234] The memory 1009 can be used to store software programs or instructions, as well as various data. The memory 1009 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1009 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0235] Processor 1010 may include one or more processing units; optionally, processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the modem processor may also not be integrated into processor 1010.

[0236] The radio frequency unit 1001 can be used to transmit a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0237] In one possible implementation, the value of the first parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0238] In one possible implementation, the first signal corresponds to the first channel and may include at least one of the following: the port of the first signal corresponds to the transmission layer of the first channel; the antenna port of the first signal is the same as the antenna port of the first channel.

[0239] In one possible implementation, the radio frequency unit 1001 can be used to determine a scaling factor for the first signal based on a first parameter, and to transmit the first signal using the scaling factor.

[0240] In one possible implementation, the radio frequency unit 1001 can be used to determine the transmission power of the first signal based on the first parameter; and to transmit the first signal using the transmission power of the first signal.

[0241] In one possible implementation, the first parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; wherein the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0242] In one possible implementation, the indication of the network-side device may include the indication of the DCI. The processor 1010 can be used to determine a first parameter based on first information in the DCI; wherein the first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0243] In one possible implementation, the processor 1010 can also be used to adjust the transmission power of the first channel based on second information; wherein the second information includes at least one of the following: configuration information of the first signal, and second parameters; the second parameters are related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0244] In one possible implementation, the second parameter may include at least one of the following: a first parameter, the difference between the transmission power of the first signal and the configured transmission power of the first channel.

[0245] In one possible implementation, the configuration information of the first signal may include the number of symbols of the first signal.

[0246] In one possible implementation, the value of the second parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0247] In one possible implementation, the second parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; wherein the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0248] In one possible implementation, the indication of the network-side device may include the indication of the DCI. The processor 1010 can also be used to determine a second parameter based on first information in the DCI; wherein the first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0249] In one possible implementation, the first signal may correspond to at least two symbols. Specifically, the radio frequency unit 1001 may be used to transmit the first signal based on a first parameter on at least some of the at least two symbols.

[0250] In the terminal provided in this application embodiment, when the terminal transmits a first signal corresponding to a first channel, it can base the transmission on a first parameter related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. This allows the first parameter based on when transmitting the first signal to be different under different modulation and waveform of the first channel. In this way, the power of the first signal under different parameters can reach the maximum value that can be achieved under this configuration, thereby improving the performance of channel estimation and thus improving the transmission performance of the first channel with different parameters.

[0251] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the terminal side method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0252] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the network-side device method embodiment. This network-side device embodiment corresponds to the network-side device method embodiment. All implementation processes and methods of the method embodiment can be applied to this network-side device embodiment and achieve the same technical effects.

[0253] Specifically, this application embodiment also provides a network-side device, which can be the signal transmission device shown in FIG5. As shown in FIG8, the network-side device 1100 includes: an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114, and a memory 115. The antenna 111 is connected to the radio frequency device 112. In the uplink direction, the radio frequency device 112 receives information through the antenna 111 and sends the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes the information to be transmitted and sends it to the radio frequency device 112. The radio frequency device 112 processes the received information and transmits it through the antenna 111.

[0254] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 113, which includes a baseband processor.

[0255] The baseband device 113 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG8. One of the chips is, for example, a baseband processor, which is connected to the memory 115 via a bus interface to call the program in the memory 115 and execute the network device operation shown in the above method embodiment.

[0256] The network-side device may also include a network interface 116, such as a Common Public Radio Interface (CPRI).

[0257] Specifically, the network-side device 1100 in this application embodiment further includes: instructions or programs stored in memory 115 and executable on processor 114. The processor 114 calls the instructions or programs in memory 115 to execute the method executed by the network-side device and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0258] The radio frequency device 112 can be used to receive a first signal based on a first parameter; wherein the first signal corresponds to a first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

[0259] In one possible implementation, the value of the first parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0260] In one possible implementation, the first signal corresponds to the first channel and may include at least one of the following: the port of the first signal corresponds to the transmission layer of the first channel; the antenna port of the first signal is the same as the antenna port of the first channel.

[0261] In one possible implementation, the first parameter can be determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; wherein the power back-off information is used to characterize the back-off value of the terminal's maximum power.

[0262] In one possible implementation, the indication from the network-side device may include an indication of DCI. The radio frequency device 112 may also be used to transmit DCI to the terminal; wherein the DCI includes first information for determining a first parameter, the first information including at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

[0263] In one possible implementation, the first information can also be used to determine a second parameter, which is used by the terminal to adjust the transmission power of the first channel. The second parameter includes at least one of the following: the first parameter being the difference between the transmission power of the first signal and the configured transmission power of the first channel.

[0264] In one possible implementation, the value of the second parameter may not be 0 if the first condition is met; wherein the first condition includes at least one of the following: the transmission power of the first channel is greater than or equal to the maximum transmission power of the terminal; the modulation order of the first channel is a first modulation order; the bandwidth of the first channel is greater than or equal to a first bandwidth; and the waveform of the first channel is a first waveform.

[0265] In one possible implementation, the first signal may correspond to at least two symbols. Specifically, the radio frequency device 112 may be used to receive the first signal based on a first parameter on at least a portion of the at least two symbols.

[0266] In the network-side device provided in this application embodiment, when receiving a first signal corresponding to a first channel, the network-side device can base its reception on at least one of the following first parameters: the type of the first channel, the resource allocation location of the first channel, the transmit power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal. This allows the first parameters used to receive the first signal to vary depending on the modulation and waveform of the first channel, ensuring that the power of the first signal under different parameters reaches the maximum value achievable under this configuration, improving the performance of channel estimation and thus enhancing the transmission performance of the first channel with different parameters.

[0267] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above network-side device method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0268] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described signal transmission method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0269] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0270] This application also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described signal transmission method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0271] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0272] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described signal transmission method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0273] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the terminal-side method as described above, and the network-side device can be used to perform the steps of the network-side device method as described above.

[0274] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0275] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0276] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A signal transmission method, the method comprising: The terminal sends a first signal based on the first parameter; Wherein, the first signal corresponds to the first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the peak-to-average power ratio (PAPR) of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

2. The method according to claim 1, wherein, If the first condition is met, the value of the first parameter is not 0; The first condition includes at least one of the following: The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal; The modulation order of the first channel is the first modulation order; The bandwidth of the first channel is greater than or equal to the first bandwidth; The waveform of the first channel is the first waveform.

3. The method according to claim 1 or 2, wherein, The first signal corresponds to the first channel and includes at least one of the following: The port of the first signal corresponds to the transmission layer of the first channel; The antenna port of the first signal is the same as the antenna port of the first channel.

4. The method according to any one of claims 1 to 3, wherein, The terminal sends a first signal based on a first parameter, including: The terminal determines the scaling factor of the first signal based on the first parameter; The terminal uses the scaling factor to send the first signal.

5. The method according to any one of claims 1 to 3, wherein, The terminal sends a first signal based on a first parameter, including: The terminal determines the transmission power of the first signal based on the first parameter; The terminal transmits the first signal using the same transmission power as the first signal.

6. The method according to any one of claims 1 to 5, wherein, The first parameter is determined by at least one of the following: the parameter reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; The power back-off information is used to characterize the back-off value of the terminal's maximum power.

7. The method according to claim 6, wherein, The indication from the network-side device includes an indication of Downlink Control Information (DCI); the method further includes: The terminal determines the first parameter based on the first information in the DCI; The first information includes at least one of the following: an indication field for indicating the first parameter, a modulation coding strategy (MCS) indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the starting position of the physical resource block (PRB) indicated by the frequency domain resource allocation (FDRA) field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

8. The method according to any one of claims 1 to 7, wherein, The method further includes: The terminal adjusts the transmission power of the first channel based on the second information; The second information includes at least one of the following: configuration information of the first signal, and a second parameter; the second parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

9. The method according to claim 8, wherein, The second parameter includes at least one of the following: the first parameter, which is the difference between the transmission power of the first signal and the configured transmission power of the first channel.

10. The method according to claim 8 or 9, wherein, The configuration information of the first signal includes the number of symbols in the first signal.

11. The method according to any one of claims 8 to 10, wherein, If the first condition is met, the value of the second parameter is not 0; The first condition includes at least one of the following: The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal; The modulation order of the first channel is the first modulation order; The bandwidth of the first channel is greater than or equal to the first bandwidth; The waveform of the first channel is the first waveform.

12. The method according to any one of claims 8 to 11, wherein, The second parameter is determined by at least one of the following: the parameter reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power backoff information determined by the terminal; The power back-off information is used to characterize the back-off value of the terminal's maximum power.

13. The method according to claim 12, wherein, The indication of the network-side device includes the indication of DCI; the method further includes: The terminal determines the second parameter based on the first information in the DCI; The first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

14. The method according to any one of claims 1 to 13, wherein, The first signal corresponds to at least two symbols; The terminal sends a first signal based on a first parameter, including: The terminal transmits the first signal based on the first parameter on at least some of the at least two symbols.

15. A signal transmission method, the method comprising: The network-side device receives a first signal and / or a first channel based on the first parameter; Wherein, the first signal corresponds to the first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

16. The method according to claim 15, wherein, If the first condition is met, the value of the first parameter is not 0; The first condition includes at least one of the following: The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal; The modulation order of the first channel is the first modulation order; The bandwidth of the first channel is greater than or equal to the first bandwidth; The waveform of the first channel is the first waveform.

17. The method according to claim 15 or 16, wherein, The first signal corresponds to the first channel and includes at least one of the following: The port of the first signal corresponds to the transmission layer of the first channel; The antenna port of the first signal is the same as the antenna port of the first channel.

18. The method according to any one of claims 15 to 17, wherein, The first parameter is determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; The power back-off information is used to characterize the back-off value of the terminal's maximum power.

19. The method according to claim 18, wherein, The indication of the network-side device includes the indication of DCI; the method further includes: The network-side device sends the DCI to the terminal; The DCI includes first information for determining the first parameter, wherein the first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

20. The method according to claim 19, wherein, The first information is also used to determine a second parameter, which is used by the terminal to adjust the transmission power of the first channel. The second parameter includes at least one of the following: the first parameter, which is the difference between the transmission power of the first signal and the configured transmission power of the first channel.

21. The method according to claim 20, wherein, If the first condition is met, the value of the second parameter is not 0; The first condition includes at least one of the following: The transmit power of the first channel is greater than or equal to the maximum transmit power of the terminal; The modulation order of the first channel is the first modulation order; The bandwidth of the first channel is greater than or equal to the first bandwidth; The waveform of the first channel is the first waveform.

22. The method according to any one of claims 15 to 21, wherein, The first signal corresponds to at least two symbols; The network-side device receives a first signal based on a first parameter, including: The network-side device receives the first signal based on the first parameter on at least some of the at least two symbols.

23. A signal transmission device, the device comprising a transmitting module; The transmitting module is used to transmit a first signal based on the first parameter; in, The first signal corresponds to the first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

24. The apparatus according to claim 23, wherein, The transmitting module is specifically used to determine the scaling factor of the first signal based on the first parameter; and to transmit the first signal using the scaling factor.

25. The apparatus according to claim 23, wherein, The transmitting module is specifically used to determine the transmitting power of the first signal based on the first parameter; and to transmit the first signal using the transmitting power of the first signal.

26. The apparatus according to any one of claims 23 to 25, wherein, The first parameter is determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; The power back-off information is used to characterize the back-off value of the terminal's maximum power.

27. The apparatus according to claim 26, wherein, The indications of the network-side device include DCI indications; the device also includes a processing module; The processing module is used to determine the first parameter based on the first information in the DCI. The first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

28. The apparatus according to any one of claims 23 to 27, wherein, The device also includes a processing module; The processing module is used to adjust the transmission power of the first channel based on the second information; The second information includes at least one of the following: configuration information of the first signal, and a second parameter; the second parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

29. The apparatus according to claim 28, wherein, The second parameter is determined by at least one of the following: parameters reported by the terminal to the network-side device, the configuration of the network-side device, the indication of the network-side device, the protocol agreement, and the power back-off information determined by the terminal; The power back-off information is used to characterize the back-off value of the terminal's maximum power.

30. The apparatus according to claim 29, wherein, The indications of the network-side device include DCI indications; The processing module is further configured to determine the second parameter based on the first information in the DCI; The first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

31. The apparatus according to any one of claims 23 to 30, wherein, The first signal corresponds to at least two symbols; The transmitting module is specifically used to transmit the first signal based on the first parameter on at least some of the at least two symbols.

32. A signal transmission device, the device comprising a receiving module; The receiving module is used to receive a first signal based on a first parameter; in, The first signal corresponds to the first channel, and the first parameter is related to at least one of the following: the type of the first channel, the resource allocation location of the first channel, the transmission power of the first channel, the modulation order of the first channel, the waveform of the first channel, the PAPR of the first channel, the type of the first signal, the number of ports of the first signal, the number of symbols of the first signal, the sequence of the first signal, and the PAPR of the first signal.

33. The apparatus according to claim 32, wherein, The device also includes a transmitting module; The sending module is used to send DCI to the terminal; The DCI includes first information for determining the first parameter, wherein the first information includes at least one of the following: an indication field for indicating the first parameter, an MCS indication field, an antenna port indication field, a modulation order indicated by the MCS indication field, the start position of the PRB indicated by the FDRA field, the number of PRBs indicated by the FDRA field, and the port of the first signal indicated by the antenna port indication field.

34. The apparatus according to claim 32 or 33, wherein, The first signal corresponds to at least two symbols; The receiving module is specifically configured to receive the first signal based on the first parameter on at least some of the at least two symbols.

35. A parameter determination method, the method comprising: Based on the received first signaling, the terminal determines the path loss parameters of the first transmission configuration indication state; The first signaling includes a first indication field of length 2 bits, wherein the first indication field satisfies at least one of the following: If the first parameter is configured to be separate, the first indication field indicates the uplink bandwidth portion BWP identifier; if the first parameter is configured to be combined, the first indication field indicates the downlink BWP identifier. If the second parameter is configured, the first indication field indicates the uplink BWP identifier; if the second parameter is not configured, the first indication field indicates the downlink BWP identifier.

36. A terminal comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the signal transmission method as claimed in any one of claims 1 to 14.

37. A network-side device, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the signal transmission method as claimed in any one of claims 15 to 22.

38. A readable storage medium storing a program or instructions that, when executed by a processor, implement the signal transmission method as claimed in any one of claims 1 to 14, or implement the steps of the signal transmission method as claimed in any one of claims 15 to 22.

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