Signal transmission method and device and terminal equipment

Abstract

The embodiment of the invention provides a signal transmission method and device and terminal equipment, relates to the technical field of communication, and is used for reducing the power consumption of the terminal equipment. Sending uplink data on the common uplink and the auxiliary uplink in a time-sharing manner; transmitting a channel detection reference signal on the auxiliary uplink based on a first transmission period, the channel detection reference signal being used for detecting the channel quality of the auxiliary uplink, the first transmission period being configured by the base station; when a first preset condition is satisfied, sending the channel detection reference signal on the auxiliary uplink based on a second sending period, or stopping sending the channel detection reference signal; wherein the second sending period is larger than the first sending period, and the first preset condition comprises that the data volume of the uplink data sent on the common uplink is smaller than or equal to a first preset flow threshold value.

Description

[0001] This application claims priority to Chinese Patent Application No. 202410545013.0, filed on April 30, 2024, entitled "A Signal Transmission Method, Apparatus and Terminal Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a signal transmission method, apparatus and terminal equipment. Background Technology

[0003] Currently, fifth-generation mobile communication technology (5G) provides an uplink enhancement technology to achieve high-speed transmission. Specifically, when the distance between the base station and the user equipment (UE) is short to medium, the UE transmits uplink data in a time-division multiplexing manner on the normal uplink (NUL) and supplementary uplink (SUL), while the base station transmits downlink data on the downlink (DL). The NUL and DL use the same high-frequency bands, while the SUL uses a low-frequency band. When the distance between the base station and the UE is long, the UE transmits uplink data on the SUL, and the base station transmits downlink data on the DL. Typically, the technique that uses the same frequency band for uplink and downlink transmission, distinguishing them by different transmission time points, is called Time Division Duplex (TDD). The technique that uses different frequency bands for uplink and downlink transmission is called Frequency Division Duplex (FDD). Currently, this uplink enhancement technology, which combines TDD and FDD and complements high and low frequencies, can also be called super uplink.

[0004] Super Uplink can improve the uplink competitiveness of a UE, thereby enhancing its performance. However, while improving UE performance, Super Uplink also increases UE power consumption. Therefore, how to improve UE performance while reducing UE power consumption has become a pressing issue that needs to be addressed. Summary of the Invention

[0005] This application provides a signal transmission method, apparatus, and terminal device to reduce the power consumption of the terminal device.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0007] In a first aspect, a signal transmission method is provided, comprising: time-division multiplexing uplink data on a normal uplink and an auxiliary uplink; transmitting a channel sounding reference signal on the auxiliary uplink based on a first transmission period, the channel sounding reference signal being used to detect the channel quality of the auxiliary uplink, the first transmission period being configured by a base station; and, when a first preset condition is met, transmitting the channel sounding reference signal on the auxiliary uplink based on a second transmission period, or stopping the transmission of the channel sounding reference signal; wherein the second transmission period is greater than the first transmission period, and the first preset condition includes: the amount of uplink data transmitted on the normal uplink is less than or equal to a first preset traffic threshold.

[0008] In the above technical solution, when the terminal device meets the first preset condition, the terminal device transmits a channel sounding reference signal on the auxiliary uplink based on a second transmission period that is longer than the first transmission period, or stops transmitting a channel sounding reference signal on the auxiliary uplink, thereby reducing the frequency of transmitting a channel sounding reference signal on the auxiliary uplink and reducing the power consumption of the terminal device.

[0009] In one possible implementation of the first aspect, the amount of uplink data transmitted on the normal uplink being less than the first preset traffic threshold includes: the amount of uplink data transmitted on the normal uplink within a first preset time period being less than or equal to the first preset traffic threshold. This possible implementation avoids situations where the amount of uplink data transmitted on the normal uplink is less than or equal to the first preset traffic threshold instantaneously, thus avoiding scenarios with instantaneous low traffic volumes and improving the accuracy of determining whether the amount of uplink data transmitted on the normal uplink is less than or equal to the first preset traffic threshold.

[0010] In one possible implementation of the first aspect, the first preset condition further includes: the amount of uplink data transmitted by the terminal device on the auxiliary uplink is zero. In the above possible implementation, the amount of uplink data transmitted by the terminal device on the auxiliary uplink is zero, and the terminal device only transmits uplink data on the normal uplink. At this time, the terminal device is in a low uplink flow scenario. The terminal device transmits channel sounding reference signals on the auxiliary uplink based on the second transmission cycle, or stops transmitting channel sounding reference signals on the auxiliary uplink, thereby reducing the frequency of transmitting channel sounding reference signals on the auxiliary uplink and reducing the power consumption of the terminal device.

[0011] In one possible implementation of the first aspect, the fact that the amount of uplink data transmitted by the terminal device on the secondary uplink is zero includes: the amount of uplink data transmitted on the secondary uplink is zero within a second preset time period. The above possible implementation avoids the situation where the amount of uplink data transmitted by the terminal device on the secondary uplink is zero within an instant, thus improving accuracy.

[0012] In one possible implementation of the first aspect, the first preset condition further includes: the reference signal received power of the synchronization block in the downlink is greater than or equal to a first preset power threshold. In the above possible implementation, if the reference signal received power of the synchronization block in the downlink is greater than or equal to the first preset power threshold, it indicates that the distance between the UE and the base station is short to medium. Within this short to medium distance, the UE transmits uplink data to the base station via SUL and NUL, improving data transmission efficiency and frequency band utilization.

[0013] In one possible implementation of the first aspect, the reference signal received power being greater than the first preset power threshold includes: the reference signal received power being greater than or equal to the first preset power threshold within a third preset time period. This possible implementation avoids the reference signal received power being greater than or equal to the first preset power threshold instantaneously, thus improving the accuracy of determining whether the reference signal received power is greater than or equal to the first preset power threshold.

[0014] In one possible implementation of the first aspect, the first preset condition further includes: the change in distance between the terminal device and the base station within a fourth preset time period is less than or equal to a first preset distance threshold. In the above possible implementation, the fact that the change in distance between the terminal device and the base station within the fourth preset time period is less than or equal to the first preset distance threshold indicates that the terminal device is in a stationary or slightly moving state. The terminal device transmits SRS on the auxiliary uplink based on a second transmission period longer than the first transmission period. This lengthens the SRS transmission period, reduces the power consumption of the terminal device, and does not affect the accuracy of the base station receiving uplink data, thus ensuring the accuracy of the base station receiving uplink data.

[0015] In one possible implementation of the first aspect, after transmitting or stopping the transmission of channel sounding reference signals on the auxiliary uplink based on a second transmission period, the method further includes: transmitting channel sounding reference signals on the auxiliary uplink based on a first transmission period when a second preset condition is met; wherein the second preset condition includes at least one of the following: the amount of uplink data transmitted on the normal uplink is greater than or equal to a second preset traffic threshold, the reference signal receiving power on the normal uplink is less than or equal to a second preset power threshold, or the change in distance between the terminal device and the base station is greater than or equal to a second preset distance threshold. In the above possible implementation, when the terminal device meets the second preset condition, it indicates that the amount of uplink data is large (e.g., the terminal device is in a VONR scenario), or the distance between the base station and the terminal device is far, or the terminal device is in a fast-moving state. Transmitting channel sounding reference signals on the auxiliary uplink according to the first transmission period improves the efficiency and accuracy of uplink data transmission and ensures the accuracy of uplink data reception by the base station.

[0016] Secondly, a signal transmission device is provided, comprising: a transmitting unit for time-division multiplexing uplink data on a normal uplink and an auxiliary uplink; the transmitting unit is further configured to transmit a channel sounding reference signal on the auxiliary uplink based on a first transmitting period, the channel sounding reference signal being used to detect the channel quality of the auxiliary uplink, the first transmitting period being configured by a base station; and a determining unit for determining that a first preset condition is met, the transmitting unit being further configured to, when the first preset condition is met, transmit the channel sounding reference signal on the auxiliary uplink based on a second transmitting period, or stop transmitting the channel sounding reference signal; wherein the second transmitting period is greater than the first transmitting period, and the first preset condition includes: the amount of uplink data transmitted on the normal uplink is less than or equal to a first preset traffic threshold.

[0017] In one possible implementation of the second aspect, the amount of uplink data transmitted on the normal uplink is less than the first preset traffic threshold, which includes: the amount of uplink data transmitted on the normal uplink within a first preset time period is less than or equal to the first preset traffic threshold.

[0018] In one possible implementation of the second aspect, the first preset also includes: the amount of uplink data transmitted on the auxiliary uplink is zero.

[0019] In one possible implementation of the second aspect, the amount of uplink data transmitted on the auxiliary uplink being zero includes: the amount of uplink data transmitted on the auxiliary uplink being zero within a second preset time period.

[0020] In one possible implementation of the second aspect, the first preset condition further includes: the reference signal received power is greater than or equal to the first preset power threshold.

[0021] In one possible implementation of the second aspect, the reference signal received power being greater than the first preset power threshold includes: the reference signal received power being greater than or equal to the first preset power threshold within a third preset time period.

[0022] In one possible implementation of the second aspect, the change in distance between the terminal device and the base station within a fourth preset time period is less than or equal to a first preset distance threshold.

[0023] In one possible implementation of the second aspect, the determining unit is further configured to determine that a second preset condition is met; the transmitting unit is further configured to transmit a channel sounding reference signal on the auxiliary uplink based on a first transmitting period when the second preset condition is met; wherein the second preset condition includes at least one of the following: the amount of uplink data transmitted on the normal uplink is greater than or equal to a second preset traffic threshold, the reference signal received power of the normal uplink is less than or equal to a second preset power threshold, or the change in distance between the terminal device and the base station is greater than or equal to a second preset distance threshold.

[0024] Thirdly, a terminal device is provided, comprising: a memory and a processor, wherein the processor transmits uplink data in a time-division multiplexing manner on a normal uplink and an auxiliary uplink, and the processor is configured to execute the signal transmission method provided by the first aspect or any possible implementation thereof.

[0025] In another aspect of this application, a computer-readable storage medium is provided that stores computer instructions, which, when executed by a terminal device, cause the terminal device to perform a signal transmission method as provided in the first aspect or any possible implementation thereof.

[0026] In another aspect of this application, a computer program product is provided, comprising: a computer program that, when run by a terminal device, causes the terminal device to perform the signal transmission method provided by the first aspect or any possible implementation thereof.

[0027] It is understood that the beneficial effects achieved by any of the signal transmission devices, terminal equipment, computer-readable storage media and computer program products provided above can be referred to in accordance with the beneficial effects of the signal transmission methods provided above, and will not be repeated here. Attached Figure Description

[0028] Figure 1 A schematic diagram illustrating communication between a base station and a terminal device, provided as an embodiment of this application;

[0029] Figure 2 A schematic diagram illustrating communication between a base station and a UE using SUL technology, provided as an embodiment of this application;

[0030] Figure 3 This is a schematic diagram illustrating communication between a base station and a UE using Super Uplink, provided as an embodiment of this application.

[0031] Figure 4 A schematic diagram illustrating a super uplink transmission provided in an embodiment of this application;

[0032] Figure 5A flowchart illustrating a SUL fault-tolerant mechanism provided in this application embodiment;

[0033] Figure 6 A schematic diagram illustrating a super uplink low-volume scenario transmission provided in an embodiment of this application;

[0034] Figure 7 A schematic diagram of the structure of a UE provided in an embodiment of this application;

[0035] Figure 8 A flowchart of a signal transmission method provided in an embodiment of this application;

[0036] Figure 9 This application provides a schematic diagram of the structure of a communication system according to an embodiment of the present application.

[0037] Figure 10 A flowchart of another signal transmission method provided in this application embodiment;

[0038] Figure 11 A flowchart illustrating another signal transmission method provided in this application embodiment;

[0039] Figure 12 A flowchart of another signal transmission method provided in this application embodiment;

[0040] Figure 13 A flowchart illustrating another signal transmission method provided in this application embodiment;

[0041] Figure 14 A flowchart of another signal transmission method provided in this application embodiment;

[0042] Figure 15 This is a schematic diagram of the structure of a signal transmission device provided in an embodiment of this application. Detailed Implementation

[0043] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple. Furthermore, embodiments of this application utilize terms such as "first" and "second" to distinguish identical or similar items with essentially the same function and effect. For example, a first threshold and a second threshold are merely for distinguishing different thresholds and do not limit their order. Those skilled in the art will understand that terms such as "first" and "second" do not limit the quantity or execution order.

[0044] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0045] Before introducing the embodiments of this application, the technical terms involved in the embodiments of this application will be explained.

[0046] 1. Sounding reference signal (SRS): This is a reference signal sent by the UE to the base station. It is used to estimate the uplink channel frequency domain information and perform frequency selection scheduling; and to estimate the downlink channel and perform downlink beamforming.

[0047] 2. Supplementary uplink (SUL): This is a low-frequency uplink introduced to solve uplink coverage issues. Its spectrum resources can be understood as frequency bands released from second-generation mobile communication technology (2G), third-generation mobile communication technology (3G), or fourth-generation mobile communication technology (4G).

[0048] 3. Normal uplink (NUL): This refers to the high-frequency uplink used in fifth-generation mobile communication technology (5G), which is the link through which terminal equipment sends uplink data to the base station.

[0049] 4. Downlink (DL): This is the link through which the base station sends downlink data to the terminal device.

[0050] 5. Physical uplink shared channel (PUSCH): Primarily used for transmitting uplink data. Physical uplink control channel (PUCCH): Primarily used for transmitting uplink control signals, such as scheduling requests (SR) and hybrid automatic repeat requests (HARQ).

[0051] 6. Time Division Duplex (TDD): Uplink and downlink use the same frequency band to transmit data, and are distinguished by different transmission time points.

[0052] 7. Frequency division duplex (FDD): This means that uplink and downlink use different frequency bands to transmit data.

[0053] 8. Reference signal received power (RSRP): This refers to the power that the terminal device receives from the synchronization signal block (SSB). It is used to characterize the coverage capability of the base station, that is, to characterize the distance between the terminal device and the base station.

[0054] 9. Uplink: refers to the data sent from the terminal device to the base station.

[0055] 10. Downlink: refers to the data sent from the base station to the terminal device.

[0056] Before introducing the embodiments of this application, we will first explain the relevant knowledge of uplink enhancement technology (super uplink).

[0057] Figure 1 This is a schematic diagram illustrating communication between a base station and a terminal device, provided as an embodiment of this application. Figure 1 (a) in the diagram illustrates FDD communication between a base station and user equipment (UE). Figure 1 As shown in (a), uplink and downlink use different frequency bands to transmit data. For example, the base station sends downlink data to the UE through frequency band A, and the UE sends uplink data to the base station through frequency band B. Frequency band A and frequency band B are different.

[0058] Figure 1 (b) in the diagram illustrates a base station and a UE communicating using TDD, as shown below. Figure 1 As shown in (b), uplink and downlink use the same frequency band to transmit data, and are distinguished by different transmission time points. For example, the base station transmits downlink data to the UE through the third frequency band at the first time t1, the third time t3, and the fifth time t5, respectively, while the UE transmits uplink data to the base station through the third frequency band at the second time t2, the fourth time t4, and the sixth time t6, respectively. Figure 1 In the following embodiments, the UE is a mobile phone as an example for illustration.

[0059] In practical applications, mobile communication services are characterized by an imbalance in the amount of uplink and downlink data (also known as data traffic). For example, when watching a video, the amount of downlink data is large, while the amount of uplink data is very small. If FDD is used to transmit data, the frequency band occupied by uplink transmission is basically idle, reducing the utilization rate of uplink frequency band resources; while TDD supports flexible allocation of uplink and downlink time slots, resulting in a higher utilization rate of frequency band resources.

[0060] 5G utilizes TDD and high-frequency bands to achieve high-speed transmission, but it suffers from insufficient network coverage. The main reasons are twofold: First, the low antenna power of mobile phones limits the short data transmission distance, restricting the communication distance between the phone and the base station, thus limiting the base station's coverage area. Second, compared to low-frequency bands, high-frequency bands experience greater penetration loss and faster signal attenuation, making the impact of TDD on coverage more pronounced. High-frequency bands refer to the range from 3 GHz to 6 GHz, such as 3.5 GHz and 4.9 GHz, also known as the main frequency band. Low-frequency bands refer to the range from 450 MHz to 3 GHz, such as 2.1 GHz and 900 MHz. The 450 MHz to 3 GHz band is also referred to as sub-3 GHz, and the 450 MHz to 6 GHz band is also known as sub-6 GHz.

[0061] Currently, SUL (Sustained-Low Frequency) technology is used to address the problem of insufficient network coverage at base stations. Specifically, it leverages the lower penetration loss and longer propagation distance of low-frequency bands to solve this problem. For example, Figure 2 This is a schematic diagram illustrating communication between a base station and a UE using SUL technology, as shown below. Figure 2 As shown, when the distance between the UE and the base station is close to medium (e.g., RSRP in DL is greater than -90 dBm), the base station sends downlink data to the UE via DL, where DL is a high-frequency band, for example, 3.5 GHz. The UE activates NUL and sends uplink data to the base station via NUL. DL and NUL are on the same frequency band, meaning TDD is used for data transmission within the close to medium distance. When the distance between the UE and the base station is greater than close to medium (e.g., RSRP in DL is less than -105 dBm), the base station sends downlink data to the UE via DL, and the UE activates SUL and sends uplink data to the base station via a low-frequency band (e.g., 2.1 GHz). This achieves high-speed transmission while improving network coverage. However, in this example, SUL is idle within the close to medium distance. To improve the utilization of SUL, an uplink enhancement technique (also known as super uplink) is proposed. Figure 2 The example used is DL and NUL, both at 3.5GHz, and SUL, at 2.1GHz.

[0062] For example, Figure 3 This is a schematic diagram illustrating communication between a base station and a UE using super uplink, as described above. Figure 2The difference between using SUL technology for communication lies in the fact that, over short to medium distances, the UE uses high-frequency bands (e.g., 3.5GHz) and low-frequency bands (e.g., 2.1GHz) in a time-division multiplexing manner to transmit uplink data. In this case, NUL is 3.5GHz and 2.1GHz. Super Uplink, while enabling full-time-slot transmission of uplink data, increases the available time-frequency domain resources for the UE, improving the utilization rate of SUL. Understandably, Super Uplink is an uplink enhancement technology that combines TDD and FDD, as well as high- and low-frequency complementarity.

[0063] For example, Figure 4 This is a basic process that utilizes super uplink transmission. Figure 4 Taking the 3.5GHz and 2.1GHz bands as examples. Here, D represents downlink, U represents uplink, and S represents pause. For example, NUL represents 3.5GHz and SUL represents 2.1GHz. Figure 4 As shown, Super Uplink supports full-slot uplink scheduling. SUL uplink resources can be scheduled in both D and S subframes of each TDD. That is, SUL uplink resources can be scheduled in slots where NUL is downlink or paused, and uplink data can be sent through SUL to improve the UE's uplink capability.

[0064] Currently, due to different Super Uplink networking environments, Super Uplink can be divided into Static Super Uplink and Flexible Super Uplink. The difference lies in that Static Super Uplink's SUL requires an independent frequency band, which is the exclusive frequency band for the Static Super Uplink SUL. For example, the base station can obtain a frequency band from 4G spectrum resources as the exclusive frequency band for the Static Super Uplink SUL. Flexible Super Uplink's SUL uses a shared frequency band. For example, the base station can use any frequency band in sub3G as the shared frequency band for the Flexible Super Uplink SUL.

[0065] Since the amount of uplink data is relatively small in most cases when the UE is working, that is, most of the time it is a low-uplink traffic scenario, such as video calls, watching videos, web browsing and voice chat. The following will explain the process of transmitting data through static super uplink and flexible super uplink in low-uplink traffic scenarios.

[0066] In one possible embodiment, in Flexible Super Uplink, the base station sends configuration parameters to the UE. These configuration parameters are used to transmit uplink data and uplink control information. The configuration parameters include SUL configuration parameters and NUL configuration parameters. The SUL configuration parameters include PUSCH and SRS configuration parameters. The PUSCH configuration parameters include the transmission method (e.g., supporting codebook transmission or non-codebook transmission), whether frequency hopping is supported, time-domain resource scheduling, and frequency-domain resource allocation method. The SRS configuration parameters include the transmission period and transmission type. The NUL configuration parameters can include PUSCH, PUCCH, and SRS configuration parameters. The PUCCH configuration parameters include the start symbol, symbol length, whether frequency hopping is supported, and the number of start resource blocks (RBs). In low uplink traffic scenarios, although the SUL contains PUSCH configuration parameters, due to the small amount of uplink data, uplink data transmission occurs entirely on the NUL. The SUL does not transmit uplink data but only periodically sends SRS.

[0067] In another possible embodiment, in static super uplink, the configuration parameters sent by the base station to the UE are the same as those in flexible super uplink. In low uplink traffic scenarios, SUL in static super uplink has a fault tolerance mechanism, which will trigger the base station to release (i.e. delete) the configuration parameters of PUSCH in SUL, while retaining the configuration parameters of SRS in SUL so that the configuration parameters of SUL can be generated more quickly next time. At this time, uplink data transmission is all on the PUSCH of NUL, and SUL only sends SRS periodically.

[0068] For example, Figure 5 This diagram illustrates a SUL fault-tolerant mechanism provided in an embodiment of this application. The steps in the diagram are executed by the base station and specifically include the following steps: S01, generating NUL configuration parameters; S02, generating SUL configuration parameters; S03, determining whether the SRS threshold 'a' in the SUL is less than the hysteresis threshold 'a', or whether SRS can be detected. If the SRS threshold 'a' is less than the hysteresis threshold 'a' or SRS cannot be detected (i.e., yes), then proceed to S04; if the SRS threshold 'a' is greater than or equal to the hysteresis threshold 'a' or SRS can be detected (i.e., no), then proceed to S02; S04, deleting the PUSCH configuration parameters in the SUL. For example, the parameter range of the SRS threshold 'a' can be (-20 to 10) dB, with a default of -8 dB, and the reference range of the hysteresis threshold 'a' can be (0.5 to 5) dB, with a default of 1 dB.

[0069] However, the UE transmits uplink data in a time-division multiplexing manner on NUL and SUL, meaning the UE supports time-division multiplexing (TDM) transmission on NUL and SUL. In the above-mentioned super uplink low-volume scenario, only NUL transmits uplink data, while SUL only periodically transmits SRS. The UE frequently transmits SRS through SUL, resulting in frequent switching of the SUL radio frequency, which increases the UE's power consumption.

[0070] For example, such as Figure 6 As shown, Figure 6 Taking the N41+N83 commercial scenario as an example, where N41 represents the NUL band and N83 represents the SUL band, the subcarrier spacing in the NUL band is 30 kHz, and the subcarrier spacing in the SUL band is 15 kHz. Figure 6 As shown, the time slot ratio in this scenario is 8:2 per cycle. That is, within one cycle, the NUL has 8 time slot subframes for sending downlink data or pausing, and 2 time slot subframes for sending uplink data. The base station releases the configuration parameters of PUSCH in SUL, but retains the configuration parameters of SRS in SUL. The SRS transmission period is 10 milliseconds (ms), which means that the UE needs to switch from NUL to SUL to send SRS every 10ms, which increases the power consumption of the UE.

[0071] Based on this, this application provides a signal transmission method applied to a UE. The method may include: the UE transmitting uplink data on SUL and NUL in a time-division manner, and transmitting SRS on SUL based on a first transmission period configured by the base station. When the UE meets a first preset condition (i.e., the UE enters a low-traffic scenario), the UE transmits SRS on SUL based on a second transmission period, or stops transmitting SRS. The second transmission period is longer than the first transmission period. That is, when the UE is in a low-traffic scenario, the frequency of the UE transmitting SRS on SUL is reduced or SRS is not transmitted, thereby reducing the power consumption of the UE.

[0072] The technical solutions provided in this application can be applied to a UE, which may include, but is not limited to, personal computers, server computers, mobile devices (such as mobile phones, tablets, media players, etc.), wearable devices, vehicle-mounted devices, consumer terminal devices, mobile robots, and drones. The specific structure of the UE is described below.

[0073] Figure 7 This is a schematic diagram of a UE provided in an embodiment of this application, using a mobile phone as an example for illustration. Figure 7 As shown, the UE may include: a memory 701, a processor 702, a sensor component 703, a multimedia component 704, a power supply 705, and an input / output interface 706.

[0074] The memory 701 can be used to store data, software programs, and software modules; it mainly includes a program storage area and a data storage area. The program storage area can store the operating system and application programs required for at least one function, such as sound playback or image playback. The data storage area can store data created according to the UE's use, such as audio data, image data, or table data. In addition, the UE may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0075] The processor 702 is the control center of the UE, connecting various parts of the entire device through various interfaces and lines. It executes software programs and / or software modules stored in the memory 701, and calls data stored in the memory 701 to perform various functions and process data, thereby providing overall monitoring of the UE. Optionally, the processor 702 may include one or more processing units. For example, the processor 702 may include a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural network processing unit (NPU). Different processing units can be independent devices or integrated into one or more processors. In this embodiment of the application, the processor 702 may include a radio resource control (RRC) layer and a physical layer (PHY). The RRC can be used to receive configuration parameters sent by the base station and send the received configuration parameters to the PHY. The PHY can be used to send uplink data on the NUL and send SRS signals on the SUL based on the configuration parameters.

[0076] Sensor assembly 703 includes one or more sensors for providing various aspects of the UE's status assessment. Sensor assembly 703 may include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor. Sensor assembly 703 can detect the UE's acceleration / deceleration, orientation, on / off state, relative positioning of components, or temperature changes of the UE. Furthermore, sensor assembly 703 may also include a light sensor for detecting ambient light.

[0077] The multimedia component 704 provides a screen as an output interface between the UE and the user. This screen can be a touch panel, and when it is a touch panel, it can be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. Furthermore, the multimedia component 704 includes at least one camera, for example, a front-facing camera and / or a rear-facing camera. When the UE is in an operating mode, such as a shooting mode or video mode, the front-facing camera and / or rear-facing camera can receive external multimedia data. Each front-facing and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0078] Power supply 705 is used to provide power to various components of the UE. Power supply 705 may include a power management system, one or more power supplies, or other components associated with generating, managing, and distributing power for the UE. In embodiments of this application, power supply 705 may include the charging and discharging circuit provided herein, and power supply 705 may also include a battery. The charging and discharging circuit can be used to power the aforementioned components and to charge the battery, and the battery can also be used to power the aforementioned components.

[0079] Input / output interface 706 provides an interface between processor 702 and peripheral interface modules, such as keyboards, mice, or universal serial bus (USB) devices.

[0080] Although not shown, the UE may also include audio components and communication components, such as a microphone for the audio component and a wireless fidelity (WiFi) module or a Bluetooth module for the communication component. These will not be elaborated further in the embodiments of this application. Those skilled in the art will understand that... Figure 7The terminal device structure shown does not constitute a limitation on the terminal device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0081] The following is combined with Figure 8 The signal transmission method provided in the embodiments of this application includes the following steps.

[0082] S801: The UE sends uplink data when uplinking between NUL and SUL.

[0083] In practical applications, the UE can use the RSRP (Responsive Range Ratio) in the DL (Data Stream) to determine the distance between the base station and the UE. The basic principle is as follows: the base station periodically sends SSB (Signal Segment Bus) to the UE through the DL, with the period varying between 5 milliseconds and 160 milliseconds. The SSB characterizes the base station's coverage area. When the UE joins the network, it first searches for the SSB. The RSRP in the DL determines the SSB quality, and the distance between the base station and the UE is determined based on the SSB signal quality. Specifically, if the RSRP is greater than -90dBm, it indicates strong SSB quality, meaning the distance between the base station and the UE is within the medium-to-short distance range; if the RSRP is less than -105dBm, it indicates weak SSB quality, meaning the distance between the base station and the UE is outside the medium-to-short distance range, i.e., the distance between the base station and the UE is long.

[0084] When the distance between the base station and the UE varies, the UE sends uplink data to the base station through different uplink links. For example, when the distance between the UE and the base station is short to medium, the UE sends uplink data to the base station on both the NUL and SUL networks in a time-division multiplexing manner. NUL is a high-frequency band, referring to the frequency band between 3 GHz and 6 GHz; for example, NUL could be 3.5 GHz or 4.9 GHz. SUL is a low-frequency band, referring to the frequency band between 450 MHz and 3 GHz; for example, SUL could be 2.1 GHz or 900 MHz. The base station sends downlink data to the UE on the DL network. DL and NUL are on the same frequency band; for example, when NUL is 3.5 GHz, DL is also 3.5 GHz. When the distance between the UE and the base station is outside the short to medium range, i.e., when the distance between the UE and the base station is long, the UE sends uplink data to the base station on the SUL network, and the base station sends downlink data to the UE on the DL network.

[0085] Optionally, when the distance between the UE and the base station is medium to short, the UE transmits uplink data in a time-division multiplexing manner on both the NUL and SUL bands. This means the UE can transmit uplink data on both the NUL and SUL bands. This technique of transmitting uplink data in a time-division multiplexing manner on both NUL and SUL can also be called Super Uplink. Furthermore, the frequency band where the NUL is located can also be called the primary frequency band.

[0086] In one possible embodiment, prior to step S801, the method provided in this application further includes: the UE sending an SR to the base station, the SR indicating that the UE needs to send uplink data to the base station. When the base station receives the SR, the SR indicates that the UE needs to send uplink data to the base station, and the base station allocates uplink resources to the UE based on the SR. The uplink resources are used to indicate the frequency band (including NUL band and SUL band), period, and format for the UE to send uplink data, and the uplink resources include the configuration parameters described below.

[0087] Specifically: The base station sends configuration parameters to the UE. For example, Figure 9 This is a schematic diagram of a communication system provided in an embodiment of this application. The communication system includes a new radio access technology node b (gNB) and a UE. Both the gNB and the UE include an RRC layer and a PHY. The RRC layer, as the control center of the access layer, is responsible for the establishment, maintenance, and release of the channel (including the uplink channel) between the UE and the gNB, as well as functions such as radio bearer management and mobility management. For example, the gNB's RRC layer can be used to send configuration parameters to the UE's RRC layer. The UE's RRC layer can be used to send the received configuration parameters to the UE's PHY. After receiving the configuration parameters, the UE's PHY sends uplink data, SRS, and uplink control signals to the base station's PHY based on the configuration parameters. For example, the PHY sends uplink data and SRS through the PUSCH and uplink control signals through the PUCCH.

[0088] In practical applications, SUL and NUL each include multiple uplink channels. Different uplink channels can be used to transmit different information. For example, uplink channels can include PUSCH and PUCCH. PUSCH can be used to transmit uplink data, and PUCCH can be used to transmit uplink control signals, such as SR and HARQ.

[0089] The configuration parameters include those for the NUL and SUL. NUL configuration parameters can include those for the PUSCH, PUCCH, and SRS. PUSCH configuration parameters include the transmission method (e.g., supporting codebook transmission or non-codebook transmission), frequency hopping support, time-domain resource scheduling, and frequency-domain resource allocation. SRS configuration parameters include the transmission period, i.e., the period during which the NUL transmits SRS. PUCCH configuration parameters include the start symbol, symbol length, frequency hopping support, and the number of RBs. SUL configuration parameters include those for both PUSCH and SRS. For example, SRS configuration parameters can include the first transmission period, which is the period during which the SUL transmits SRS.

[0090] S802: The UE transmits SRS on the SUL based on the first transmission period. The SRS is used to detect the channel quality of the SUL. The first transmission period is configured by the base station.

[0091] Specifically, after receiving uplink resources from the base station, the UE transmits uplink data and SRS on the NUL (Nearest Low Limit) based on the uplink resources, or transmits uplink data on the SUL (Shortest Low Limit) and transmits SRS on the SUL based on the first transmission period. The base station receives uplink data on the NUL or SUL and receives SRS on the SUL based on the first transmission period. The base station detects the uplink channel quality based on the SRS. The uplink channel includes PUSCH and PUCCH. If the uplink channel quality is good, the UE can continue to transmit uplink data and uplink control information in the uplink channel. If the uplink channel quality is poor, the base station and the UE re-establish the uplink channel.

[0092] S803a: When the first preset condition is met, the UE transmits SRS on the SUL based on the second transmission period, or stops transmitting SRS. The second transmission period is longer than the first transmission period, and the first preset condition includes: the amount of uplink data transmitted on the NUL is less than or equal to a first preset traffic threshold.

[0093] Specifically, the base station receives the SRS on the SUL based on the second transmission cycle, and detects the uplink channel quality in the SUL based on the SRS. Based on the uplink channel quality, it determines whether the uplink channel can continue to be used or whether a new uplink channel should be re-established.

[0094] In one possible embodiment, the amount of uplink data sent by the UE on the NUL being less than a first preset traffic threshold includes: the amount of uplink data sent by the UE on the NUL within a first preset time period being less than or equal to the first preset traffic threshold.

[0095] The first preset traffic threshold can be set according to actual needs or the experience of relevant personnel. For example, the first preset traffic threshold can be 10 megabits per second (Mbps). This application does not impose any specific limitations on the comparison of the embodiments.

[0096] In addition, the first preset time can be determined according to actual needs or the experience of relevant personnel. For example, the first preset time can be 3 seconds. This application does not make any specific limitation.

[0097] Optionally, scenarios that meet the first preset condition can also be called uplink low-traffic scenarios. In practical applications, most scenarios involve low uplink traffic, such as live streaming, Voice over New Radio (VONR) scenarios, image browsing, web browsing, and text chat. VONR refers to ultra-high-definition video applications in the 5G era.

[0098] In one possible embodiment, when the UE transmits SRS on the SUL based on the second transmission period, the second transmission period may be the maximum period that the UE supports for transmitting SRS. The maximum period that the UE supports for transmitting SRS may be pre-configured. For example, the user may pre-configure the maximum transmission period that the UE supports for transmitting SRS according to a program or instruction.

[0099] In this embodiment, when the amount of uplink data sent by the UE on NUL is less than or equal to the first preset traffic threshold, the power consumption of the UE can be reduced by lengthening the transmission period of the SRS sent by the UE on SUL. For example, if the base station configures the first transmission period of the UE to be 10ms, it means that the UE needs to switch from NUL to SUL to send an SRS once every 10ms, and it needs to switch 100 times per second. If the second transmission period is 640ms, it needs to switch a maximum of 2 times per second, which has a significant benefit in improving the power consumption of the UE.

[0100] In one possible embodiment, in conjunction with the above... Figure 8 ,like Figure 10 As shown in S803b, the first preset condition further includes: the amount of uplink data transmitted by the UE on the SUL is zero, that is, there is no traffic on the SUL. Optionally, the amount of uplink data transmitted on the SUL being zero may include: the amount of uplink data transmitted on the SUL being zero within a second preset time period.

[0101] The second preset time can be the same as the first preset time. For example, both the second preset time and the first preset time can be 3 seconds. The second preset time can also be different from the first preset time. This application does not make any specific limitations in comparison.

[0102] In this embodiment, since the UE transmits uplink data in a time-division manner on NUL and SUL, if the amount of uplink data transmitted by the UE on NUL is less than the first preset traffic threshold and the amount of uplink data transmitted by the UE on SUL is zero, the UE only transmits uplink data on NUL. The UE is in a low uplink traffic scenario. The UE transmits SRS on SUL based on a second transmission period that is longer than the first transmission period, which lengthens the transmission period of SRS and reduces the power consumption of the UE.

[0103] In one possible embodiment, in conjunction with the above... Figure 10 ,like Figure 11 As shown in S803c, the first preset condition also includes: RSRP is greater than or equal to the first preset power threshold.

[0104] Optionally, the RSRP of NUL being greater than or equal to the first preset power threshold includes: RSRP being greater than or equal to the first preset power threshold within a third preset time period.

[0105] The third preset time can be determined based on actual needs or the experience of relevant personnel. The third preset time can be the same as the first preset time, for example, the third preset time can be 3 seconds. The third preset time can also be different from the first preset time. This application does not make specific limitations in comparison.

[0106] In addition, the first preset power threshold can be determined based on actual needs or the experience of relevant personnel. For example, the first preset power threshold can be equal to -90dBm.

[0107] In practical applications, an RSRP greater than or equal to the first preset power threshold indicates that the SSB signal transmitted by the base station obtained by the UE through DL is a good signal, meaning the distance between the UE and the base station is medium to short distance. Within this medium to short distance, the UE can transmit uplink data through SUL and NUL time-division multiplexing. An RSRP less than or equal to the second preset power threshold indicates that the SSB signal transmitted by the base station obtained by the UE through DL is a poor signal, meaning the distance between the UE and the base station is long distance. Within this long distance, the UE transmits uplink data through SUL.

[0108] Optionally, the second preset power threshold may or may not be equal to the first preset power threshold. For example, when the second preset power threshold is equal to the first preset power threshold, an RSRP greater than or equal to the first preset power threshold indicates that the distance between the UE and the base station is medium to short distance, while an RSRP less than the second preset power threshold indicates that the distance between the UE and the base station is long distance.

[0109] In this embodiment, RSRP greater than or equal to the first preset power threshold indicates that the distance between the UE and the base station is medium to short distance. Within the medium to short distance, the UE can transmit uplink data through SUL and NUL in a time-division manner. If the amount of uplink data transmitted by the UE on NUL is less than or equal to the first preset traffic threshold, and the amount of uplink data transmitted by the UE on SUL is zero, then the UE only transmits uplink data on NUL. The UE is in a low uplink traffic scenario. The UE transmits SRS on SUL based on a second transmission period that is longer than the first transmission period, which lengthens the transmission period of SRS and reduces the power consumption of the UE.

[0110] Because the transmission time required for signals (e.g., SRS) sent by the UE to the base station varies depending on the distance between the UE and the base station, the base station receives the SRS sent by the UE and estimates the time for receiving subsequent uplink data based on the SRS. If the distance between the UE and the base station varies greatly, the time for the base station to estimate the uplink data reception based on the SRS may be inaccurate, resulting in the omission of some uplink data and inaccurate uplink data received by the base station.

[0111] Based on this, in one possible embodiment, in conjunction with the above... Figure 11 ,like Figure 12 As shown in S803d, the first preset condition also includes: the change in distance between the UE and the base station within a fourth preset time period is less than or equal to the first preset distance threshold.

[0112] Optionally, the change in distance between the UE and the base station within the fourth preset time period being less than or equal to the first preset distance threshold can be: the UE is in a stationary state and the change in distance between the UE and the base station is zero; or the UE is in a slightly moving state and the change in distance between the UE and the base station is less than or equal to the first preset distance threshold.

[0113] The first preset distance threshold can be determined based on actual needs or the experience of relevant personnel. For example, the first preset distance threshold can be 10 meters. This application does not make any specific limitation.

[0114] In addition, the fourth preset time can be the same as the first preset time. For example, both the fourth preset time and the first preset time can be 3 seconds. The fourth preset time can also be different from the first preset time. For example, the first preset time can be 3 seconds and the fourth preset time threshold can be 60 seconds. This application does not make any specific limitations in comparison.

[0115] In this embodiment of the application, if the change in distance between the UE and the base station is less than or equal to the first preset distance threshold within a fourth preset time period, the UE transmits SRS on SUL based on a second transmission period that is longer than the first transmission period. This lengthens the transmission period of SRS, reduces the power consumption of the UE, and does not affect the accuracy of the base station receiving uplink data, thus ensuring the accuracy of the base station receiving uplink data.

[0116] Furthermore, the method provided in this application embodiment further includes: when the UE meets a second preset condition, transmitting SRS on the SUL based on a first transmission period. The second preset condition includes at least one of the following: the amount of uplink data transmitted on the NUL is greater than or equal to a second preset traffic threshold (e.g., in a VONR scenario), the RSRP of the normal uplink is less than or equal to a second preset power threshold, or the change in distance between the UE and the base station is greater than or equal to a second preset distance threshold (i.e., the UE is in a state of rapid movement). The mechanism for the UE to meet the second preset condition can also be called an exit mechanism.

[0117] Typically, the second preset traffic threshold is greater than the first preset traffic threshold. For example, the second preset traffic threshold can be 100 Mbps, and the first preset traffic threshold can be 10 Mbps. In one possible implementation, the second preset traffic threshold can be equal to the first preset traffic threshold; this application does not specifically limit this.

[0118] Furthermore, the second preset power threshold is typically lower than the first preset power threshold. For example, the second preset power threshold could be -70dBm, and the first preset power threshold could be -90dBm. In one possible implementation, the second preset power threshold could be equal to the first preset power threshold; however, this application does not specifically limit this.

[0119] Furthermore, the second preset distance threshold can typically be greater than the first preset distance threshold; for example, the second preset distance threshold can be 100 meters, and the first preset distance threshold can be 10 meters. In one possible implementation, the second preset distance threshold can be equal to the first preset distance threshold, and this application does not specifically limit this.

[0120] Optionally, in one possible embodiment, the signal transmission method provided in this application is as follows: Figure 13 As shown below, in conjunction with Figure 13 The signal transmission method provided in the embodiments of this application will be described. The signal transmission method includes the following steps:

[0121] S130: The base station sends configuration parameters to the UE, including the first cycle for the UE to transmit SRS on the SUL; S131: The UE transmits SRS on the SUL based on the first transmission cycle configured by the base station; S132: Whether the UE meets the first preset condition. The first preset condition includes: the amount of uplink data transmitted on the NUL is less than or equal to a first preset traffic threshold, and RSRP is greater than or equal to a first preset power threshold. If the first preset condition is met (i.e., yes), then execute S133; if the first preset condition is not met (i.e., no), then execute S134; S133: The UE transmits SRS on the SUL based on the second transmission cycle, or stops transmitting SRS; S134: The UE transmits SRS on the SUL based on the first transmission cycle.

[0122] Optionally, in one possible embodiment, the signal transmission method provided in this application is as follows: Figure 14 As shown below, in conjunction with Figure 14 The signal transmission method provided in the embodiments of this application will be described. The signal transmission method includes the following steps:

[0123] S140: The base station sends configuration parameters to the UE, including the first cycle of SRS transmission by the UE on the SUL; S141: The UE transmits SRS on the SUL based on the first transmission cycle configured by the base station; S142: Whether the change in distance between the UE and the base station within a fourth preset time is less than or equal to a first preset distance threshold. If the change in distance between the UE and the base station within the fourth preset time is less than or equal to the first preset distance threshold (i.e., yes), then execute S143; if the change in distance between the UE and the base station within the fourth preset time is greater than or equal to a second preset distance threshold (i.e., no), then execute S144; S143: Whether RSRP is greater than or equal to a first preset power threshold within a third preset time. If RSRP is greater than or equal to the first preset power threshold within the third preset time (i.e., yes), then execute... If RSRP is less than or equal to the second preset power threshold (i.e., no) within the third preset time period, then execute S144; S144: The UE transmits SRS on the SUL based on the first transmission cycle; S145: Whether the amount of uplink data transmitted by the UE on the NUL within the first preset time period is less than or equal to the first preset traffic threshold, and the amount of uplink data transmitted on the SUL is zero. If the amount of uplink data transmitted by the UE on the NUL within the first preset time period is less than or equal to the first preset traffic threshold (i.e., yes), then execute S146. If the amount of uplink data transmitted by the UE on the NUL within the first preset time period is greater than or equal to the second preset traffic threshold (i.e., no), then execute S144; S146: The UE transmits SRS on the SUL based on the second transmission cycle, or stops transmitting SRS.

[0124] This application provides a signal transmission method in which the UE transmits SRS on the SUL based on a first transmission period configured by the base station. When the UE meets a first preset condition, the UE transmits SRS on the SUL based on a second transmission period longer than the first transmission period, or stops transmitting SRS. By lengthening the period during which the UE transmits SRS on the SUL or not transmitting SRS, the frequency of SRS transmission by the UE is reduced, thereby reducing the power consumption of the UE.

[0125] This application also provides a signal transmission device, such as... Figure 15As shown, the signal transmission device may include a receiving unit 150, a transmitting unit 151, and a determining unit 152. In this embodiment, the receiving unit 150 can be used to receive configuration parameters sent by the base station, and / or other steps described herein; the transmitting unit 151 can be used to execute steps S801, S802, S803a, S803b, S803c, and S803d in the above method embodiments, the step of transmitting SRS on the SUL based on the first transmitting period when the second preset condition is met, and / or other steps described herein; the determining unit 152 can be used to determine whether the UE meets the first preset condition or whether it meets the second preset condition.

[0126] In another aspect of this application, a terminal device is also provided. This terminal device may include a memory and a processor. The memory stores computer instructions, and the processor executes the computer instructions to enable the terminal device to perform signal transmission as described above. Optionally, the processor includes the signal transmission means described above. The terminal device can be as described above. Figure 7 The terminal device shown.

[0127] It is understood that all relevant content of each step involved in the above method embodiments can be referenced in the embodiments of the signal transmission device and the embodiments of the terminal device, and the embodiments of this application will not be repeated here.

[0128] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules or units is merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another apparatus, or some features may be ignored or not executed.

[0129] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0130] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. This readable storage medium may include various media capable of storing program code, such as a USB flash drive, external hard drive, read-only memory, random access memory, magnetic disk, or optical disk. Based on this understanding, the technical solution of the embodiments of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product.

[0131] In another embodiment of this application, a readable storage medium is also provided, which stores computer instructions that, when executed by a computer and run by a terminal device, cause the terminal device to perform the steps described in the above method embodiments.

[0132] In another embodiment of this application, a computer program product is also provided, which includes a computer program that, when run by a terminal device, causes the terminal device to perform the steps described in the method embodiments above.

[0133] Finally, it should be noted that the above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A signal transmission method, characterized in that, The method includes: Uplink data is transmitted in a time-division manner on the normal uplink and the auxiliary uplink; Based on a first transmission period, a channel sounding reference signal is transmitted on the auxiliary uplink. The channel sounding reference signal is used to detect the channel quality of the auxiliary uplink. The first transmission period is configured by the base station. When the first preset condition is met, the channel sounding reference signal is transmitted on the auxiliary uplink based on the second transmission period, or the transmission of the channel sounding reference signal is stopped. Wherein, the second transmission period is greater than the first transmission period, and the first preset condition includes: the amount of uplink data transmitted on the normal uplink is less than or equal to a first preset traffic threshold.

2. The method according to claim 1, characterized in that, The condition that the amount of uplink data transmitted on the normal uplink is less than the first preset traffic threshold includes: the amount of uplink data transmitted on the normal uplink within a first preset time period is less than or equal to the first preset traffic threshold.

3. The method according to claim 1 or 2, characterized in that, The first preset condition also includes: the amount of uplink data transmitted on the auxiliary uplink is zero.

4. The method according to claim 3, characterized in that, The statement that the amount of uplink data transmitted on the auxiliary uplink is zero includes: the amount of uplink data transmitted on the auxiliary uplink is zero within a second preset time period.

5. The method according to any one of claims 1-4, characterized in that, The first preset condition also includes: the reference signal received power is greater than or equal to the first preset power threshold.

6. The method according to claim 5, characterized in that, The reference signal received power being greater than or equal to the first preset power threshold includes: the reference signal received power being greater than or equal to the first preset power threshold within a third preset time period.

7. The method according to any one of claims 1-6, characterized in that, The first preset condition also includes: the change in distance between the terminal device and the base station within a fourth preset time period is less than or equal to a first preset distance threshold.

8. The method according to any one of claims 1-7, characterized in that, After transmitting the channel sounding reference signal or ceasing transmission of the channel sounding reference signal on the auxiliary uplink based on the second transmission period, the method further includes: When the second preset condition is met, the channel sounding reference signal is transmitted on the auxiliary uplink based on the first transmission period; The second preset condition includes at least one of the following: the amount of uplink data transmitted on the normal uplink is greater than or equal to a second preset traffic threshold, the reference signal receiving power is less than or equal to a second preset power threshold, or the change in distance between the terminal device and the base station is greater than or equal to a second preset distance threshold.

9. A signal transmission device, characterized in that, The device includes: The transmitting unit is used for time-division multiplexing uplink data transmission on the normal uplink and the auxiliary uplink. The transmitting unit is further configured to transmit a channel sounding reference signal on the auxiliary uplink based on a first transmitting period, the channel sounding reference signal being used to detect the channel quality of the auxiliary uplink, the first transmitting period being configured by the base station; A determining unit is used to determine whether the first preset condition is met; The transmitting unit is further configured to, when the first preset condition is met, transmit the channel sounding reference signal on the auxiliary uplink based on the second transmitting period, or stop transmitting the channel sounding reference signal; Wherein, the second transmission period is greater than the first transmission period, and the first preset condition includes: the amount of uplink data transmitted on the normal uplink is less than or equal to a first preset traffic threshold.

10. The apparatus according to claim 9, characterized in that, The condition that the amount of uplink data transmitted on the normal uplink is less than the first preset traffic threshold includes: the amount of uplink data transmitted on the normal uplink within a first preset time period is less than or equal to the first preset traffic threshold.

11. The apparatus according to claim 9 or 10, characterized in that, The first preset also includes: the amount of uplink data transmitted on the auxiliary uplink is zero.

12. The apparatus according to claim 11, characterized in that, The statement that the amount of uplink data transmitted on the auxiliary uplink is zero includes: the amount of uplink data transmitted on the auxiliary uplink is zero within a second preset time period.

13. The apparatus according to any one of claims 9-12, characterized in that, The first preset condition also includes: the reference signal received power is greater than or equal to the first preset power threshold.

14. The apparatus according to claim 13, characterized in that, The reference signal received power being greater than or equal to the first preset power threshold includes: the reference signal received power being greater than or equal to the first preset power threshold within a third preset time period.

15. The apparatus according to any one of claims 9-14, characterized in that, The first preset condition also includes: the change in distance between the terminal device and the base station within a fourth preset time period is less than or equal to a first preset distance threshold.

16. The apparatus according to any one of claims 9-15, characterized in that, The determining unit is further configured to determine whether the second preset condition is met. The transmitting unit is further configured to transmit the channel sounding reference signal on the auxiliary uplink based on the first transmitting period when the second preset condition is met; The second preset condition includes at least one of the following: the amount of uplink data transmitted on the normal uplink is greater than or equal to a second preset traffic threshold, the reference signal receiving power of the normal uplink is less than or equal to a second preset power threshold, or the change in distance between the terminal device and the base station is greater than or equal to a second preset distance threshold.

17. A terminal device, characterized in that, The terminal device includes a memory and a processor, wherein the processor transmits uplink data in a time-division multiplexing manner on a normal uplink and an auxiliary uplink, and the processor is configured to execute the signal transmission method as described in any one of claims 1-8.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a terminal device, cause the terminal device to perform the signal transmission method as described in any one of claims 1-8.

19. A computer program product, characterized in that, The computer program product includes: a computer program that, when run by a terminal device, causes the terminal device to perform the signal transmission method as described in any one of claims 1-8.

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