An uplink transmission method and electronic device

Abstract

This application provides an uplink transmission method and electronic device, relating to the field of communications. It enables a user terminal to automatically switch to single-path uplink transmission when the reference signal received power of two transmitting antennas differs significantly in medium and weak field scenarios, thereby reducing the power consumption of the user terminal. The method includes: transmitting a probe reference signal to a base station through at least two transmitting antennas; receiving first information returned by the base station based on the probe reference signal; the first information including the reference signal received power of each transmitting antenna and the signal-to-interference-plus-noise ratio (SNR); and reporting second information to the base station when the SNR of each transmitting antenna is less than a first preset threshold and the standard deviation of the reference signal received power of each transmitting antenna is greater than a second preset threshold. The second information indicates that the terminal device supports single-path uplink transmission.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to an uplink transmission method and electronic device. Background Technology

[0002] The uplink transmission scheme of a user equipment (UE) can include 1T (Transmit) and 2T, namely single-channel uplink transmission and dual-channel uplink transmission. Single-channel uplink transmission means transmitting radio frequency signals through a single radio frequency channel and a single transmit antenna, while dual-channel uplink transmission means transmitting radio frequency signals through two radio frequency channels and two transmit antennas.

[0003] In related technologies, the UE reports its uplink transmission capability to the base station, and the base station determines the uplink transmission scheme for the UE based on the UE's uplink transmission capability. For example, if the UE reports an uplink transmission capability of 2T, meaning that the UE supports dual-path uplink transmission, the base station will instruct the UE to adopt a dual-path uplink transmission scheme.

[0004] However, in handheld scenarios with weak field conditions, hand obstruction can cause a difference in the Reference Signal Receiving Power (RSRP) of the two transmit antennas, affecting the dual-path uplink transmission performance of the UE and causing the UE to be unable to obtain the expected signal throughput under high power consumption. Summary of the Invention

[0005] This application provides an uplink transmission method and electronic device that enables a user terminal to automatically switch to single-path uplink transmission when the reference signal reception power of the two transmitting antennas differs too much in medium and weak field scenarios, thereby reducing the power consumption of the user terminal.

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

[0007] In a first aspect, an uplink transmission method is provided, applied to a terminal device, the terminal device including at least two transmitting antennas. The method includes: transmitting a probe reference signal to a base station through the at least two transmitting antennas; receiving first information returned by the base station based on the probe reference signal. The first information includes the reference signal received power and the signal-to-interference-plus-noise ratio (SNR) of each transmitting antenna. When the SNR of each transmitting antenna is less than a first preset threshold, and the standard deviation of the reference signal received power of each transmitting antenna is greater than a second preset threshold, reporting second information to the base station, the second information indicating that the terminal device supports single-path uplink transmission.

[0008] Based on this scheme, the terminal device detects that the signal-to-interference-plus-noise ratio of each transmitting antenna is less than the first preset threshold, and the standard deviation of the reference signal received power of each transmitting antenna is greater than the second preset threshold. That is, in medium and weak field scenarios, when the transmitting antenna is blocked and the total throughput is greatly affected, the uplink transmission capability reported to the base station will be automatically changed to single-path uplink transmission, thereby reducing the power consumption of the terminal device without affecting the total throughput.

[0009] In one possible design, after reporting the second information to the base station, the method further includes: establishing a first communication connection with the base station in response to receiving an acknowledgment from the base station based on the second information. Under the first communication connection, the terminal device communicates with the base station via single-path uplink transmission. Based on this scheme, when the throughput of the terminal device is significantly affected due to the transmission antenna being blocked, it will communicate with the base station via single-path uplink transmission, thereby reducing the power consumption of the terminal device.

[0010] In one possible design, the number of transmitting antennas is n, where n is an integer greater than or equal to 2. After receiving the first information returned by the base station based on the detection reference information, the method further includes: when the signal-to-interference-plus-noise ratio of each transmitting antenna is greater than a first preset threshold, or the standard deviation of the reference signal received power of each transmitting antenna is less than a second preset threshold, reporting third information to the base station. The third information is used to indicate that the terminal device supports n uplink transmissions. Based on this scheme, in scenarios with non-medium or weak fields, or in scenarios where the transmitting antennas are not blocked, or in scenarios where all transmitting antennas are blocked, the terminal device will automatically switch the uplink transmission capability reported to the base station to dual-path uplink transmission to obtain the maximum throughput.

[0011] In one possible design, after reporting the third information to the base station, the method further includes: in response to receiving an acknowledgment from the base station based on the third information, establishing a second communication connection with the base station. Under the second communication connection, the terminal device communicates with the base station via n uplink transmissions. Based on this scheme, in scenarios with non-medium or weak fields, or in scenarios where the transmitting antenna is not blocked, or where both transmitting antennas are blocked, the terminal device communicates with the base station via dual uplink transmissions to obtain maximum throughput.

[0012] In one possible design, a probe reference signal is transmitted to the base station via at least two transmit antennas, including: in response to detecting a user gripping the device, transmitting the probe reference signal to the base station via at least two transmit antennas. Based on this scheme, it is possible to promptly determine whether to switch to single-path uplink transmission when the transmit antennas are being gripped, which helps reduce power consumption.

[0013] In one possible design, a probe reference signal is transmitted to the base station via at least two transmit antennas, including: in response to detecting that one of the at least two transmit antennas is blocked, transmitting the probe reference signal to the base station via at least two transmit antennas. Based on this scheme, it is possible to promptly determine whether to switch to single-path uplink transmission when a transmit antenna is blocked, which helps reduce power consumption.

[0014] In one possible design, a probe reference signal is transmitted to the base station via at least two transmit antennas, including transmitting the probe reference signal to the base station via at least two transmit antennas at preset time intervals. Based on this scheme, it is possible to periodically determine whether to switch to single-path uplink transmission, which helps to reduce power consumption.

[0015] In one possible design, the first preset threshold is greater than or equal to 26dB and less than or equal to 30dB. Based on this scheme, when the signal-to-interference-plus-noise ratio of each transmitting antenna is less than the first preset threshold, it indicates that the terminal device is in a medium to weak field scenario.

[0016] In one possible design, the second preset threshold is greater than or equal to 4dBm and less than or equal to 6dBm. Based on this scheme, when the standard deviation of the reference signal received power of each transmit antenna is greater than the second preset threshold, it indicates that the throughput of dual-channel uplink transmission or multi-channel uplink transmission is close to the peak throughput of single-channel uplink transmission.

[0017] Secondly, a terminal device is provided, comprising at least two transmitting antennas and a receiving processing module. The at least two transmitting antennas are connected to the receiving processing module. The at least two transmitting antennas are used to transmit a probe reference signal to a base station. The receiving processing module is used to receive first information returned by the base station based on the probe reference information. The first information includes the reference signal received power and the signal-to-interference-plus-noise ratio (SNR) of each transmitting antenna. The receiving processing module is further used to report second information to the base station through the at least two transmitting antennas when the SNR of each transmitting antenna is less than a first preset threshold and the standard deviation of the reference signal received power of each transmitting antenna is greater than a second preset threshold. The second information indicates that the terminal device supports single-path uplink transmission.

[0018] Thirdly, an electronic device is provided, comprising one or more processors and one or more memories. The one or more memories are coupled to the one or more processors, and the one or more memories store computer instructions. When the one or more processors execute the computer instructions, the electronic device performs an uplink transmission method as described in any of the first aspects.

[0019] Fourthly, a chip system is provided, the chip including processing circuitry and an interface. The processing circuitry is used to retrieve and execute a computer program stored in a storage medium to perform an uplink transmission method as described in any of the first aspects.

[0020] Fifthly, a computer-readable storage medium is provided, the computer-readable storage medium including computer instructions that, when executed, perform an uplink transmission method as described in any of the first aspects.

[0021] In a sixth aspect, a computer program product is provided, the computer program product including instructions that, when the computer program product is run on a computer, enable the computer to execute an uplink transmission method as described in any of the first aspects according to the instructions.

[0022] It should be understood that the technical features of the technical solutions provided in the second, third, fourth, fifth and sixth aspects mentioned above can all correspond to the uplink transmission method provided in the first aspect and its possible designs, so the beneficial effects that can be achieved are similar, and will not be repeated here. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a transmitting module in a terminal device.

[0024] Figure 2 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application;

[0025] Figure 3 A flowchart of an uplink method provided in an embodiment of this application;

[0026] Figure 4 A flowchart illustrating yet another uplink transmission method provided in this application embodiment;

[0027] Figure 5 An interactive schematic diagram illustrating yet another uplink transmission method provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of a terminal device provided in an embodiment of this application;

[0029] Figure 7 A schematic diagram illustrating the composition of an electronic device provided in an embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the composition of a chip system provided in an embodiment of this application. Detailed Implementation

[0031] In this application's embodiments, terms such as "first," "second," and "third" are used to distinguish different objects, not to limit a specific order. Furthermore, words such as "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's embodiments should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0032] To facilitate understanding, the application background of the embodiments of this application will be introduced first below.

[0033] User terminals communicate with the outside world through base stations. User terminals, also known as terminal devices, include, but are not limited to, mobile phones, smart terminals, multimedia devices, and streaming media devices. A base station is a radio transceiver station that, within a defined radio coverage area, transmits information between the user and terminal devices through a mobile communication switching center.

[0034] Terminal devices typically include a transmitting antenna. This antenna allows the terminal device to send signals to the base station. With the development of communication technology, users have increasingly higher requirements for the communication speed of terminal devices, leading to a greater number of transmitting antennas in these devices. Under current communication conditions, terminal devices usually include two transmitting antennas to support dual-path uplink transmission.

[0035] It should be understood that a terminal device equipped with two transmitting antennas can support both dual-channel uplink transmission and single-channel uplink transmission. However, the power consumption of the terminal device when performing dual-channel uplink transmission is much greater than that when performing single-channel uplink transmission. This will be explained in detail below.

[0036] Terminal devices transmit and receive signals through radio frequency (RF) modules. An RF module may include a transmitting module and a receiving module, whereby the transmitting module transmits signals and the receiving module receives signals. It is understood that a transmitting antenna may be included in the transmitting module, and a receiving antenna may be included in the receiving module. This application primarily discusses transmitting antennas; therefore, a brief description of a transmitting module containing two transmitting antennas will follow.

[0037] Please refer to Figure 1 This is a schematic diagram of a transmitting module in a terminal device. It should be noted that... Figure 1 This is merely a simplified illustration of the transmitter module, used to illustrate the main components and connections within it, and does not represent the accurate circuit structure of the transmitter module.

[0038] like Figure 1As shown, the transmitting module includes a signal source s, a modem a, a modem b, a power amplifier c, a power amplifier d, a transmitting antenna e, and a transmitting antenna f. The signal source is connected to both modem a and modem b. Modem a is also connected to power amplifier c; modem b is also connected to power amplifier d. Power amplifier c is also connected to transmitting antenna e. Power amplifier d is also connected to transmitting antenna f.

[0039] The signal source can be a System on Chip (SoC) used to output digital signals. A modem converts the digital signal from the signal source into an analog signal and sends the converted analog signal to a power amplifier. The power amplifier amplifies the analog signal before outputting it to a transmitting antenna. The transmitting antenna then transmits the amplified analog signal.

[0040] Depend on Figure 1 It can be seen that the transmitting module containing two transmitting antennas includes two transmitting links. The signal transmission path of the first transmitting link is: signal source, modem a, power amplifier c, transmitting antenna e. The signal transmission path of the second transmitting link is: signal source, modem c, power amplifier d, transmitting antenna f.

[0041] It's understandable that when a terminal device performs a single-path uplink transmission, only the devices in one transmission link are active, and the signal source's transmission power is relatively low. However, when a terminal device performs a dual-path uplink transmission, the devices in both transmission links are active, and the signal source's transmission power is much higher. Therefore, the power consumption of a terminal device performing a dual-path uplink transmission is significantly greater than that performing a single-path uplink transmission.

[0042] The above conclusions can be verified through actual measurements. Please refer to Table 1, which compares the power consumption of a terminal device using single-channel uplink transmission and dual-channel uplink transmission.

[0043] 1T power consumption (mA) 2T power consumption (mA) Power consumption difference (%) Power amplifier 88 136 54.5 modem 138 190 37.6 SoC 70 125 78.6 total 296 451 52.3

[0044] Table 1

[0045] In Table 1, 1T refers to single-channel uplink transmission, 2T refers to dual-channel uplink transmission, and the power consumption difference refers to the difference between the power consumption of 2T and 1T.

[0046] As shown in Table 1, the power consumption of the terminal device when performing dual-channel uplink transmission is 52.3% higher than that when performing single-channel uplink transmission. In other words, the power consumption of the terminal device when performing dual-channel uplink transmission is much greater than that when performing single-channel uplink transmission.

[0047] However, the inventors discovered in their actual research that while dual-path uplink transmission consumes more power, its signal throughput is not significantly better than that of single-path uplink transmission in all scenarios. This will be explained below.

[0048] Throughput can be equated to channel capacity. In the field of communications, the formula for channel capacity is shown in the following formula (1):

[0049] C = B log2(1+SNR) Formula (1).

[0050] Where C is the channel capacity, B is the bandwidth, and SNR is the signal-to-noise ratio. As can be seen from formula (1), with a fixed bandwidth, the larger the signal-to-noise ratio, the larger the channel capacity, that is, the larger the throughput.

[0051] The mapping relationship between the input signal and the output signal in the channel is shown in the following formula (2):

[0052] y=hx+n formula (2).

[0053] Where y is the received signal, h is the transmission coefficient, and n is AWGN (Additive White Gaussian Noise). Since n follows a normal distribution C(0, σ... 2 From this, we can obtain the relationship between the signal-to-noise ratio and the signal transmission power as shown in the following formula (3):

[0054]

[0055] In other words, the higher the signal transmission power, the higher the signal-to-noise ratio; the lower the signal transmission power, the lower the signal-to-noise ratio.

[0056] For an N-transmitter, M-receiver MIMO model, y, h, x, and n become an M×1 output information matrix, an M×N matrix, an N×1 input column vector, and an M×1 column vector composed of noise, respectively. The transfer function matrix is ​​shown in the following formula (4):

[0057] Y=H·X+N formula (4).

[0058] Using singular value decomposition (SVD) to decompose H, we can obtain the following formula (5):

[0059] H = UDV H Formula (5).

[0060] Where U is an M×M matrix; D is an M×N matrix, defined as a singular matrix, with all values ​​being zero except for those on the main diagonal; V is an N×N matrix, and both H and V are unitary matrices, i.e., VV H =I,UUH =I, Substituting formula (5) into formula (4) yields the following formula (6):

[0061] Y = UDV H X+N formula (6).

[0062] Multiply both sides of the equation (6) by U H Then we can obtain the following formula (7):

[0063] U H Y = U H UDV H X+U H N formula (7).

[0064] Since H is a unitary matrix, formula (7) can be transformed into formula (8) as follows:

[0065] U H Y = DV H X+U H N formula (8).

[0066] Let Y' = U H Y, X' = V H X, N' = U H N can be obtained by formula (9):

[0067] Y'=DX'+N' formula (9).

[0068] Let the singular values ​​on the main diagonal of the singular matrix D be... The number of non-zero singular values ​​is the rank of this matrix, which is the rank value. The rank is maximized when all singular values ​​are non-zero. Thus, MIMO can be equivalently represented as a number of sub-channels of rank, and the singular values ​​represent the gain of the channel amplitude. The representation of each sub-channel is shown in the following formula (10):

[0069]

[0070] Since the noise power is N H =σ 2 I, and N'N' H =UNN H U H =σ 2 I. It can be seen that the noise power does not change after SVD decomposition, so the capacity of each sub-channel can be expressed as shown in the following formula (11):

[0071]

[0072] The total channel capacity can then be expressed as shown in the following formula (12):

[0073]

[0074] As can be seen from the above formula (12), the signal-to-noise ratio (SNR) of a sub-channel affects the total channel capacity, i.e., throughput. The SNR of a sub-channel is related to the signal transmission power; when the signal transmission power is low, the SNR will also be poor.

[0075] It is understandable that in medium and weak field scenarios, the signal transmission power of the transmitting antenna is already relatively low. If a user's hand, head, or other body part obstructs a transmitting antenna, it will further reduce the signal transmission power of that antenna, worsening its signal-to-noise ratio and thus reducing throughput. It should be noted that in this embodiment, "medium and weak field" refers to an antenna's RSRP less than -95dBm, or a signal-to-interference-plus-noise ratio (SINR) less than 26dB.

[0076] In other words, in medium and weak field scenarios, when a user's body blocks one of the transmitting antennas in a terminal device, the throughput of that terminal device will decrease.

[0077] By measuring the degree of throughput degradation using measured data, it can be seen that when the RSRP of a certain transmitting antenna attenuates to a certain extent, the throughput of dual-path uplink transmission will approach that of single-path uplink transmission. This will be explained below.

[0078] Please refer to Table 2, which shows the relationship between antenna RSRP attenuation and throughput in medium and weak field scenarios.

[0079]

[0080]

[0081] Table 2

[0082] In Table 2, the Modulation and Coding Scheme (MCS) indicates the physical transmission rate under corresponding parameters and can be used to characterize the signal-to-noise ratio (SNR). A larger MCS indicates a better SNR, while a smaller MCS indicates a worse SNR. Two-stream peak refers to the peak value achievable during dual-stream uplink transmission, while one-stream peak refers to the peak value achievable during single-stream uplink transmission.

[0083] As shown in Table 2, when the RSRP of one transmitting antenna is attenuated by about 10 dB compared to the other transmitting antenna, the throughput of dual-channel uplink transmission is very close to the peak throughput of single-channel uplink transmission. However, as mentioned in Table 1, the power consumption of dual-channel uplink transmission is 52.3% higher than that of single-channel uplink transmission.

[0084] In other words, when a terminal device performs dual-path uplink transmission in a medium or weak field scenario, if the user's body blocks one of the transmitting antennas in the terminal device, causing the RSRP of that transmitting antenna to differ too much from the RSRP of the other transmitting antenna, the terminal device will be unable to obtain the expected signal throughput despite high power consumption.

[0085] To address the aforementioned issues, embodiments of this application provide an uplink transmission method and electronic device that enables a user terminal to automatically switch to single-path uplink transmission when the reference signal reception power of the two transmitting antennas differs significantly in medium and weak field scenarios, thereby reducing the power consumption of the user terminal.

[0086] In this embodiment, the terminal device can be a portable terminal with at least two transmitting antennas, such as a mobile phone, tablet computer, wearable device (such as a smartwatch), or in-vehicle device. Exemplary embodiments of the portable terminal include, but are not limited to, carrying... Alternatively, it can be a portable terminal with another operating system. The aforementioned portable terminal can also be a laptop computer, such as one with at least two transmitting antennas (e.g., a touch panel). It should also be understood that in some other embodiments, the terminal can also be a desktop computer with a touch-sensitive surface (e.g., a touch panel). As an example, please refer to... Figure 2 This is a schematic diagram of the structure of a terminal device 200 provided in an embodiment of this application. The uplink transmission methods provided in this application can all be applied to, for example... Figure 2 The terminal device 200 shown.

[0087] like Figure 2 As shown, the terminal device 200 may include a processor 201, a display screen 203, a communication module 202, etc.

[0088] The processor 201 may include one or more processing units, such as an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, memory, a video stream codec, a digital signal processor (DSP), a baseband processor, and / or a neural network processing unit (NPU). These different processing units may be independent devices or integrated into one or more processors 201.

[0089] The controller can serve as the nerve center and command center of the terminal device 200. The controller can generate operation control signals based on the instruction opcode and timing signals to control the fetching and execution of instructions.

[0090] The processor 201 may also include a memory for storing instructions and data. In some embodiments, the memory in the processor 201 is a cache memory. This memory can store instructions or data that the processor 201 has just used or that are used repeatedly. If the processor 201 needs to use the instruction or data again, it can directly retrieve it from the memory. This avoids repeated accesses, reduces the waiting time of the processor 201, and thus improves the efficiency of the system.

[0091] In some embodiments, the processor 201 may include one or more interfaces. Interfaces may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface 211, etc.

[0092] The terminal device 200 implements display functions through a GPU, a display screen 203, and an application processor. The GPU is a microprocessor for image processing, connected to the display screen 203 and the application processor. The GPU performs mathematical and geometric calculations and is used for graphics rendering. The processor 201 may include one or more GPUs, which execute program instructions to generate or modify display information.

[0093] Display screen 203 is used to display images, video streams, etc.

[0094] The communication module 202 may include antenna 1, antenna 2, mobile communication module 202A, and / or wireless communication module 202B. Taking an example where the communication module 202 simultaneously includes antenna 1, antenna 2, mobile communication module 202A, and wireless communication module 202B. Antenna 1 and antenna 2 may both be transmitting antennas, and the communication module 202 may also include other receiving antennas; this application does not specifically limit this.

[0095] The wireless communication function of the terminal device 200 can be implemented through antenna 1, antenna 2, mobile communication module 202A, wireless communication module 202B, modem processor, and baseband processor.

[0096] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in terminal device 200 can be used to cover one or more communication frequency bands. Different antennas can also be multiplexed to improve antenna utilization. For example, antenna 1 can be multiplexed as a diversity antenna for a wireless local area network. In some other embodiments, the antennas can be used in conjunction with a tuning switch.

[0097] The mobile communication module 202A can provide solutions for wireless communication, including 2G / 3G / 4G / 5G, applied to the terminal device 200. The mobile communication module 202A may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 202A can receive electromagnetic waves via antenna 1, and perform filtering, amplification, and other processing on the received electromagnetic waves before transmitting them to a modem processor for demodulation. The mobile communication module 202A can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves for radiation via antenna 1. In some embodiments, at least some functional modules of the mobile communication module 202A may be housed in the processor 201. In some embodiments, at least some functional modules of the mobile communication module 202A and at least some modules of the processor 201 may be housed in the same device.

[0098] The modem processor may include a modulator and a demodulator. The modulator modulates the low-frequency baseband signal to be transmitted into a mid-to-high frequency signal. The demodulator demodulates the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After processing by the baseband processor, the low-frequency baseband signal is transmitted to the application processor. The application processor outputs sound signals through audio devices (not limited to speaker 206A, receiver 206B, etc.) or displays images or video streams through the display screen 203. In some embodiments, the modem processor may be a separate device. In other embodiments, the modem processor may be independent of the processor 201 and may be housed in the same device as the mobile communication module 202A or other functional modules.

[0099] The wireless communication module 202B can provide solutions for wireless communication applications on the terminal device 200, including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared (IR) technologies. The wireless communication module 202B can be one or more devices integrating at least one communication processing module. The wireless communication module 202B receives electromagnetic waves via antenna 2, performs frequency modulation and filtering of the electromagnetic wave signals, and sends the processed signal to processor 201. The wireless communication module 202B can also receive signals to be transmitted from processor 201, perform frequency modulation and amplification, and convert them into electromagnetic waves for radiation via antenna 2.

[0100] In some embodiments, antenna 1 of terminal device 200 is coupled to mobile communication module 202A, and antenna 2 is coupled to wireless communication module 202B, enabling terminal device 200 to communicate with networks and other devices via wireless communication technology. The wireless communication technology may include Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technologies, etc. The GNSS may include the Global Positioning System (GPS), the Global Navigation Satellite System (GLONASS), the BeiDou Navigation Satellite System (BDS), the Quasi-Zenith Satellite System (QZSS), and / or satellite-based augmentation systems (SBAS).

[0101] like Figure 2 As shown, in some implementations, the terminal device 200 may also include an external memory interface 210, an internal memory 204, a universal serial bus (USB) interface, a charging management module 212, a power management module 213, a battery 214, an audio module 206, a speaker 206A, a receiver 206B, a microphone 206C, a headphone jack 206D, a sensor module 205, buttons 209, a motor, an indicator 208, a camera 207, and a subscriber identification module (SIM) card interface, etc.

[0102] The charging management module 212 receives charging input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 212 receives charging input from the wired charger via a USB interface 211. In some wireless charging embodiments, the charging management module 212 receives wireless charging input via the wireless charging coil of the terminal device 200. While charging the battery 214, the charging management module 212 can also supply power to the terminal device 200 via the power management module 213.

[0103] The power management module 213 connects the battery 214, the charging management module 212, and the processor 201. The power management module 213 receives input from the battery 214 and / or the charging management module 212, providing power to the processor 201, internal memory 204, external memory, display screen 203, camera 207, and wireless communication module 202B. The power management module 213 can also monitor parameters such as battery 214 capacity, battery cycle count, and battery health status (leakage current, impedance). In some other embodiments, the power management module 213 may be located within the processor 201. In other embodiments, the power management module 213 and the charging management module 212 may be located in the same device.

[0104] The external storage interface 210 can be used to connect an external storage card, such as a Micro SD card, to expand the storage capacity of the terminal device 200. The external storage card communicates with the processor 201 through the external storage interface 210 to perform data storage functions. For example, music, video streams, and other files can be saved on the external storage card.

[0105] Internal memory 204 can be used to store computer executable program code, which includes instructions. Processor 201 executes various functional applications and data processing of terminal device 200 by running the instructions stored in internal memory 204.

[0106] The internal memory 204 may also store one or more computer programs corresponding to the uplink transmission method provided in the embodiments of this application.

[0107] Terminal device 200 can implement audio functions, such as music playback and recording, through audio module 206, speaker 206A, receiver 206B, microphone 206C, headphone jack 206D, and application processor.

[0108] Buttons 209 include a power button, volume buttons, etc. Buttons 209 can be mechanical buttons or touch-sensitive buttons. Terminal device 200 can receive input from buttons 209 and generate key signal inputs related to user settings and function control of the terminal device 200.

[0109] Indicator 208 can be an indicator light, used to indicate charging status, power changes, or to indicate messages, missed calls, notifications, etc.

[0110] The SIM card interface is used to connect a SIM card. The SIM card can be inserted into or removed from the SIM card interface to make contact with and detach from the terminal device 200. The terminal device 200 can support one or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface can support Nano SIM cards, Micro SIM cards, SIM cards, etc. Multiple cards can be inserted into the same SIM card interface simultaneously. The multiple cards can be of the same or different types. The SIM card interface is also compatible with different types of SIM cards. The SIM card interface is also compatible with external memory cards. The terminal device 200 interacts with the network through the SIM card to realize functions such as voice calls and data communication. In some embodiments, the terminal device 200 uses an eSIM, i.e., an embedded SIM card. The eSIM card can be embedded in the terminal device 200 and cannot be separated from the terminal device 200.

[0111] The sensor module 205 in the terminal device 200 may include components such as touch sensors, pressure sensors, gyroscope sensors, barometric pressure sensors, magnetic sensors, accelerometers, distance sensors, proximity sensors, ambient light sensors, fingerprint sensors, temperature sensors, and bone conduction sensors to achieve the function of sensing and / or acquiring different signals.

[0112] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the terminal device 200. In other embodiments, the terminal device 200 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0113] The above has been approved. Figure 2 The hardware structure of the terminal device in the embodiments of this application is described. The uplink transmission method provided in the embodiments of this application will be described in detail below.

[0114] The application scenarios of the uplink transmission method provided in this application embodiment are described again here. The uplink transmission method provided in this application embodiment is applied to a terminal device, which includes at least two transmitting antennas. That is, the terminal device includes at least single-channel uplink transmission and dual-channel uplink transmission. It should be noted that with the development of antenna technology, when the terminal device includes three or more transmitting antennas, the terminal device can also support three-channel uplink transmission or more uplink transmissions, which is not specifically limited in this application.

[0115] Please refer to Figure 3 This is a flowchart of an uplink method provided in an embodiment of this application. Figure 3 As shown, the method includes S301-S305. Among them, S305 includes S305a and S305b.

[0116] S301. Transmit a detection reference signal to the base station through at least two transmitting antennas.

[0117] A Sounding Reference Signal (SRS) is a reference signal transmitted by a terminal device in the uplink direction. The base station uses this reference signal to estimate the uplink channel quality over a wider bandwidth. In other words, the base station can determine the frequency domain information and channel quality of the terminal device's uplink channel based on the SRS transmitted by the terminal device.

[0118] For example, the terminal device has m antennas and supports up to n uplink transmissions. The terminal device can then transmit a probe reference signal using the m antennas in turn, selecting n antennas to transmit at a time. Here, m is an integer greater than 2, and n is an integer less than m. For example, if m is 4 and n is 2, the terminal device can transmit a probe reference signal using 4 antennas in turn, selecting 2 antennas to transmit at a time.

[0119] In this embodiment, transmitting a probe reference signal to the base station through at least two transmitting antennas can be achieved by alternately transmitting the probe reference signal to the base station through at least two transmitting antennas. That is, if the terminal device supports n transmissions, it will alternately transmit the probe reference signal to the base station through the n transmitting antennas.

[0120] As explained in the aforementioned formula (12) and Table 2, in a weak field scenario, when performing dual-path uplink transmission, if the user's body blocks one of the transmitting antennas in the terminal device, the RSRP of that transmitting antenna will differ too much from the RSRP of the other transmitting antenna, which will cause the terminal device to fail to obtain the expected signal throughput under high power consumption.

[0121] Therefore, in some embodiments, the triggering condition for executing S301 can be that the terminal device recognizes that the user is holding the device, or that at least two of the transmitting antennas are blocked.

[0122] For example, the terminal device can use devices such as SAR (Specific Absorption Rate) sensors to identify whether the user is holding the device and whether the transmitting antenna is blocked.

[0123] In other embodiments, the terminal device may also periodically execute the uplink transmission method provided in the embodiments of this application. That is, the terminal device may execute the above-mentioned S301 at preset time intervals. The preset time interval can be set according to actual needs, such as 10s, 30s, 1min, etc., and is not specifically limited here.

[0124] After receiving the probe reference signals sent by each transmit antenna, the base station determines the channel quality information of each transmit antenna based on the probe reference signals of each transmit antenna and returns the channel quality information to the terminal device.

[0125] In the embodiments of this application, the channel quality information may also be referred to as first information, as shown in S302 below.

[0126] S302, Receive the first information returned by the base station based on the detection reference information.

[0127] In the embodiments of this application, the first information includes the reference signal received power of each transmitting antenna and the signal-to-interference-plus-noise ratio.

[0128] The reference signal received power is defined as the linear average of the power contribution (in W) of resource particles carrying the cell-specific reference signal over the measurement frequency band. In other words, the reference signal received power reflects the signal strength. A higher reference signal received power indicates a stronger signal, while a lower reference signal received power indicates a weaker signal.

[0129] The signal-to-noise ratio (SNR) is the ratio of the strength of the received useful signal to the strength of the received interference signal (noise plus interference).

[0130] In this application, the terminal device is determined to be in a medium or weak field by the signal and interference plus noise, and the transmission antenna is determined to be blocked by the reference signal received power of each transmission antenna, i.e., S303 below.

[0131] S303. Determine whether the signal-to-interference-plus-noise ratio of each transmitting antenna is less than a first preset threshold, and whether the standard deviation of the reference signal received power of each transmitting antenna is greater than a second preset threshold. If yes, proceed to S304a. If no, proceed to S304b.

[0132] In this embodiment, the first preset threshold can be greater than or equal to 26dB and less than or equal to 30dB. The second preset threshold can be greater than or equal to 4dBm and less than or equal to 6dBm.

[0133] If the signal-to-interference-plus-noise ratio of each transmitting antenna is less than the first preset threshold, it indicates that the terminal device is in a medium to weak field scenario. If the standard deviation of the reference signal received power of each transmitting antenna is greater than the second preset threshold, it indicates that one of the transmitting antennas is blocked, and the blockage has a significant impact on the total channel capacity, i.e., throughput.

[0134] The following section first explains S304a and its subsequent processes. Specifically, it describes a scenario where the terminal device is in a medium to weak field, and the transmitting antenna is blocked, affecting the overall throughput.

[0135] S304a, Report the second information to the base station.

[0136] The second piece of information describes whether the terminal device supports single-path uplink transmission. Generally, whether the terminal device uses single-path or dual-path uplink transmission is determined by the base station. For example, the terminal device reports its supported uplink transmission capabilities to the base station. Based on the reported uplink transmission capabilities and uplink channel information, the base station instructs the terminal device to perform single-path, dual-path, or more uplink transmissions.

[0137] It should be noted that when a terminal device reports its uplink transmission capability to the base station as dual-channel or more uplink transmission, the base station will instruct the terminal device to adopt the dual-channel or more uplink transmission mode based on channel quality and other information. Conversely, when a terminal device reports its uplink transmission capability to the base station as single-channel uplink transmission, the base station will instruct the terminal device to adopt single-channel uplink transmission. This is referred to as S305a below.

[0138] S305a: In response to receiving confirmation information returned by the base station based on the second information, the terminal device establishes a first communication connection with the base station. Under the first communication connection, the terminal device communicates with the base station through a single-channel uplink transmission.

[0139] The confirmation information returned by the base station based on the second information refers to the information instructing the terminal device to perform single-channel uplink transmission. The terminal device can perform single-channel uplink transmission based on this confirmation information.

[0140] Based on the above description, it can be understood that in the embodiments of this application, when the terminal device detects that the signal-to-interference-plus-noise ratio of each transmitting antenna is less than the first preset threshold and the standard deviation of the reference signal received power of each transmitting antenna is greater than the second preset threshold, that is, in the scenario of medium and weak field, when the transmitting antenna is blocked and the total throughput is greatly affected, the uplink transmission capability reported to the base station will be automatically changed to single-path uplink transmission, thereby reducing the power consumption of the terminal device without affecting the total throughput.

[0141] The following describes S304b and its subsequent procedures. In the following description, the number of transmitting antennas is n, where n is an integer greater than or equal to 2.

[0142] S304b, Report third information to the base station.

[0143] The third piece of information is used to explain that the terminal device supports n uplink transmissions.

[0144] S305b: In response to receiving confirmation information returned by the base station based on third information, a second communication connection is established with the base station. Under the second communication connection, the terminal device communicates with the base station through n uplink transmissions.

[0145] The confirmation information returned by the base station based on the third piece of information refers to the information instructing the terminal device to perform dual-channel uplink transmission. The terminal device can then perform dual-channel uplink transmission based on this confirmation information.

[0146] In other words, when the terminal device detects that the signal-to-interference-plus-noise ratio of each transmitting antenna is greater than a first preset threshold, or the standard deviation of the reference signal received power of each transmitting antenna is less than a second preset threshold, it will automatically switch the uplink transmission capability reported to the base station to dual-path uplink transmission. These will be explained in detail below.

[0147] When the signal-to-interference-plus-noise ratio of each transmitting antenna is greater than the first preset threshold, meaning the terminal device is not in a medium or weak field scenario, the signal strength is high and the impact of blocking the transmitting antenna on the throughput is relatively small. Therefore, the desired throughput can be obtained by using dual-path uplink transmission.

[0148] If the standard deviation of the received reference signal power of each transmitting antenna is less than the second preset threshold, it indicates that either no transmitting antenna is blocked or all transmitting antennas are blocked. In the case of no antenna blockage, dual-path uplink transmission can achieve the desired throughput. However, when all transmitting antennas are blocked, single-path uplink transmission will result in lower throughput and may affect the normal communication of terminal equipment; therefore, dual-path uplink transmission is still used.

[0149] The uplink transmission method provided in this application will be described again below, taking two transmitting antennas as an example, i.e., the terminal device supports single-channel uplink transmission and dual-channel uplink transmission. In the following description, the two transmitting antennas are referred to as the first antenna and the second antenna, respectively.

[0150] Please refer to Figure 4 This is a flowchart illustrating another uplink transmission method provided in an embodiment of this application. Figure 4 As shown, the method includes S401-S405. Among them, S405 includes S405a and S405b.

[0151] S401. Transmit a detection reference signal to the base station through the first antenna and the second antenna.

[0152] S402, Receive the first information returned by the base station based on the detection reference information.

[0153] The first information may include the reference signal received power of the first antenna, the signal-to-interference-plus-noise ratio, and the reference signal received power of the second antenna, the signal-to-interference-plus-noise ratio.

[0154] S403. Determine whether the signal-to-interference-plus-noise ratio of the first antenna and the second antenna is less than a first preset threshold, and whether the absolute value of the difference in the received power of the reference signal is greater than a third preset threshold. If yes, proceed to S404a. If no, proceed to S404b.

[0155] The second piece of information is used to explain that the terminal device supports single-channel uplink transmission.

[0156] It is understandable that the standard deviation of two numbers is half the difference between the two numbers; therefore, the third preset threshold is twice the second preset threshold. In other words, the range of the third threshold can be greater than or equal to 8 dBm and less than or equal to 12 dBm.

[0157] The following section will explain S404a and subsequent steps.

[0158] S404a, Report the second information to the base station.

[0159] S405a: In response to receiving confirmation information returned by the base station based on the second information, a first communication connection is established with the base station through the antenna with the higher reference signal receiving power among the first antenna and the second antenna.

[0160] In the first communication connection, the terminal device communicates with the base station via a single uplink transmission.

[0161] As can be seen from Table 2 above, in medium and weak field scenarios, when the absolute value of the difference between the reference signal received power of the first antenna and the second antenna is greater than 8dB, the throughput of dual-path uplink transmission is very close to that of single-path uplink transmission. Therefore, switching to single-path uplink transmission will not have a significant impact on the throughput and can greatly reduce the power consumption of the terminal device.

[0162] The following explains S404b and subsequent steps.

[0163] S404b: Report third information to the base station.

[0164] S405b: In response to receiving confirmation information returned by the base station based on third information, establish a second communication connection with the base station through the first antenna and the second antenna.

[0165] Under the second communication connection, the terminal device communicates with the base station via dual-path uplink transmission.

[0166] In scenarios with weak or no signal strength, or where neither the first nor the second antenna is blocked, or where both the first and second antennas are blocked, the terminal device employs dual-path uplink transmission to maximize throughput. For further details, please refer to the above description of the S305b; it will not be repeated here.

[0167] The uplink transmission method provided in this application embodiment has been described above from the perspective of the terminal device. The uplink transmission method will now be described again from the perspective of device interaction.

[0168] Please refer to Figure 5 This is an interactive schematic diagram of another uplink transmission method provided in an embodiment of this application. Figure 5 As shown, the uplink transmission method includes S501-S509. Among them, S509 includes S509a and S509b.

[0169] S501: The terminal device transmits a detection reference signal to the base station through two transmitting antennas.

[0170] S502, The base station determines the first information of the two transmitting antennas based on the detection reference signal.

[0171] S503, the base station returns the first information to the terminal device.

[0172] S504, The terminal device receives the first information returned by the base station.

[0173] S505. The terminal device determines whether the signal-to-interference-plus-noise ratio of each transmitting antenna is less than a first preset threshold, and whether the absolute value of the difference in the received power of the reference signals of each transmitting antenna is greater than a second preset threshold. If yes, proceed to S506a-S509a. If no, proceed to S506b-S509b.

[0174] First, let's introduce S506a-S509a.

[0175] S506a, The terminal device reports the second information to the base station.

[0176] S507a. Generate confirmation information based on the second signal.

[0177] S508a. Return the confirmation information to the terminal device.

[0178] S509a: In response to receiving confirmation information, establish a first communication connection with the base station.

[0179] The following sections introduce S506a-S509a.

[0180] S506b, Report third information to the base station.

[0181] S507b: Generate confirmation information based on the second signal.

[0182] S508b: Return confirmation information to the terminal device.

[0183] S509b: In response to receiving the confirmation information, a second communication connection is established with the base station.

[0184] For a description of each relevant step in S501-S509 above, please refer to the description of the steps mentioned above. Figure 3 and Figure 4 The explanation will not be repeated here.

[0185] The above describes the uplink transmission method provided in this application embodiment. Based on the above description, it should be understood that when this uplink transmission method is applied to a terminal device, if the terminal device detects that the signal-to-interference-plus-noise ratio of each transmitting antenna is less than a first preset threshold, and the standard deviation of the reference signal received power of each transmitting antenna is greater than a second preset threshold, that is, in a weak field scenario where the transmitting antenna is blocked, causing a significant impact on the total throughput, the uplink transmission capability reported to the base station will be automatically switched to single-path uplink transmission, thereby reducing the power consumption of the terminal device without affecting the total throughput.

[0186] Please refer to Figure 6 This is a schematic diagram of a terminal device provided in an embodiment of this application. Figure 6 As shown, the terminal device includes at least two transmitting antennas 601. Figure 6(Only the case with two transmitting antennas is shown) and a receiving processing module 602. At least two transmitting antennas 601 are connected to the receiving processing module 602. The at least two transmitting antennas 601 are used to transmit probe reference signals to the base station. The receiving processing module 602 is used to receive first information returned by the base station based on the probe reference information. The first information includes the reference signal received power of each transmitting antenna and the signal-to-interference-plus-noise ratio. The receiving processing module 602 is also used to report second information to the base station through the at least two transmitting antennas 601 when the signal-to-interference-plus-noise ratio of each transmitting antenna is less than a first preset threshold and the standard deviation of the reference signal received power of each transmitting antenna is greater than a second preset threshold. The second information is used to indicate that the terminal device supports single-path uplink transmission.

[0187] For a description of the transmitting antenna 601, receiving processing module 602 and their corresponding functions in the terminal device, please refer to the foregoing description of the method embodiments, which will not be repeated here.

[0188] Please refer to Figure 7 This is a schematic diagram illustrating the composition of an electronic device provided in an embodiment of this application. The electronic device 700 can be any of the electronic devices described in the above examples; for example, the electronic device 700 can be a mobile phone, a computer, etc. For example, as shown... Figure 7 As shown, the electronic device 700 may include a processor 701 and a memory 702. The memory 702 is used to store computer execution instructions. Exemplarily, in some embodiments, when the processor 701 executes the instructions stored in the memory 702, the electronic device 700 may perform any of the functions of the electronic device in the above embodiments to implement any of the uplink transmission methods in the above examples.

[0189] It should be noted that all relevant content of each step involved in the above method embodiments can be referenced from the functional description of the corresponding functional module, and will not be repeated here.

[0190] Figure 8 A schematic diagram of a chip system 800 is shown. This chip system 800 can be installed in an electronic device, such as a mobile phone. Exemplarily, the chip system 800 may include a processor 801 and a communication interface 802, used to support the electronic device in implementing the functions involved in the above embodiments. In one possible design, the chip system 800 also includes a memory for storing necessary program instructions and data of the electronic device. This chip system can be composed of chips or may include chips and other discrete devices. It should be noted that in some implementations of this application, the communication interface 802 may also be referred to as an interface circuit.

[0191] It should be noted that all relevant content of each step involved in the above method embodiments can be referenced from the functional description of the corresponding functional module, and will not be repeated here.

[0192] This application also provides a computer storage medium storing computer instructions. When the computer instructions are executed on a terminal device, the terminal device performs the aforementioned method steps to implement the methods described in the above embodiments.

[0193] This application also provides a computer program product that, when run on a computer, causes the computer to perform the aforementioned steps to implement the methods described in the above embodiments.

[0194] In addition, embodiments of this application also provide an apparatus, which may specifically be a chip, component, or module. The apparatus may include a connected processor and a memory; wherein the memory is used to store computer execution instructions, and when the apparatus is running, the processor may execute the computer execution instructions stored in the memory to cause the chip to execute the methods in the above-described method embodiments.

[0195] In this application, the terminal device, computer storage medium, computer program product or chip provided in the embodiments are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0196] The foregoing primarily describes the solutions provided by the embodiments of this application from the perspective of electronic devices. To achieve the aforementioned functions, it includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0197] This application embodiment can divide the device involved into functional modules according to the above method examples. For example, each function can be divided into its own functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0198] The functions, actions, operations, or steps in the above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented using software programs, they can be implemented, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or include one or more data storage devices such as servers and data centers that can be integrated with the medium. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0199] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

Claims

1. An uplink transmission method, characterized in that, The method is applied to a terminal device, which includes m transmitting antennas and supports up to n uplink transmissions, where m is an integer greater than 2 and n is an integer less than m but greater than or equal to 2; the method includes: The electromagnetic wave energy absorption ratio (SAR) sensor identifies whether the user is holding the device. When a user's grip is detected, the m transmitting antennas take turns transmitting a detection reference signal to the base station, with at most n antennas transmitting the detection reference signal at one time. The system receives first information returned by the base station based on the detection reference information; the first information includes the reference signal received power of each of the transmitting antennas and the signal-to-interference-plus-noise ratio. In a medium-weak field scenario where the signal-to-interference-plus-noise ratio of each of the transmitting antennas is less than a first preset threshold, and the standard deviation of the reference signal received power of each of the transmitting antennas is greater than a second preset threshold, if one of the transmitting antennas is blocked, the transmitting antenna is reported to the base station as second information, which is used to indicate that the terminal device supports single-path uplink transmission. When the signal-to-interference-plus-noise ratio of each of the transmitting antennas is greater than the first preset threshold, or when the standard deviation of the reference signal received power of the transmitting antenna is less than the second preset threshold and all transmitting antennas are blocked, the third information is reported to the base station, the third information being used to indicate that the terminal device supports n uplink transmissions; In response to receiving confirmation information returned by the base station based on the third information, the terminal device establishes a second communication connection with the base station; under the second communication connection, the terminal device communicates with the base station through the n uplink transmissions.

2. The uplink transmission method according to claim 1, characterized in that, After reporting the second information to the base station, the method further includes: In response to receiving confirmation information returned by the base station based on the second information, the terminal device establishes a first communication connection with the base station; under the first communication connection, the terminal device communicates with the base station through the single-path uplink transmission.

3. The uplink transmission method according to claim 1 or 2, characterized in that, The transmission of the detection reference signal to the base station through the m transmitting antennas includes: In response to the detection that one of the m transmitting antennas is blocked, a detection reference signal is transmitted to the base station through the m transmitting antennas.

4. The uplink transmission method according to claim 1 or 2, characterized in that, The transmission of the detection reference signal to the base station through the m transmitting antennas includes: At preset time intervals, the m transmitting antennas transmit detection reference signals to the base station.

5. The uplink transmission method according to claim 1, characterized in that, The first preset threshold is greater than or equal to 26dB and less than or equal to 30dB.

6. The uplink transmission method according to claim 1, characterized in that, The second preset threshold is greater than or equal to 4dBm and less than or equal to 6dBm.

7. A terminal device, characterized in that, The terminal device includes an electromagnetic wave energy absorption ratio (SAR) sensor, m transmitting antennas, and a receiving and processing module, and supports up to n uplink transmissions, where m is an integer greater than 2 and n is an integer less than m but greater than or equal to 2; the m transmitting antennas are connected to the receiving and processing module. The SAR sensor is used to identify whether the user is holding it; The m transmitting antennas are used to take turns transmitting detection reference signals to the base station when the user's grip is detected, with at most n antennas transmitting the detection reference signals at one time; The receiving and processing module is used to receive first information returned by the base station based on the detection reference information; the first information includes the reference signal received power of each of the transmitting antennas and the signal-to-interference-plus-noise ratio; The receiving and processing module is further configured to report second information to the base station through the m transmitting antennas when there is a blocked transmitting antenna in a medium-weak field scenario where the signal-to-interference-plus-noise ratio of each transmitting antenna is less than a first preset threshold, and when the standard deviation of the reference signal received power of each transmitting antenna is greater than a second preset threshold. The second information is used to indicate that the terminal device supports single-path uplink transmission. When the signal-to-interference-plus-noise ratio of each of the transmitting antennas is greater than the first preset threshold, or when the standard deviation of the reference signal received power of the transmitting antenna is less than the second preset threshold and all transmitting antennas are blocked, the third information is reported to the base station. The third information is used to indicate that the terminal device supports n uplink transmissions, where n is an integer greater than or equal to 2. In response to receiving confirmation information returned by the base station based on the third information, a second communication connection is established with the base station; Under the second communication connection, the terminal device communicates with the base station through the n uplink transmissions.

8. An electronic device, characterized in that, The electronic device includes one or more processors and one or more memories; the one or more memories are coupled to the one or more processors, and the one or more memories store computer instructions; When the one or more processors execute the computer instructions, the electronic device performs the uplink transmission method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes computer instructions that, when executed, perform the uplink transmission method as described in any one of claims 1-6.

10. A computer program product, characterized in that, The computer program product includes instructions that, when the computer program product is run on a computer, cause the computer to execute the uplink transmission method as described in any one of claims 1-6 according to the instructions.

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