Radio frequency control method and apparatus, and electronic device

Abstract

This specification provides a radio frequency control method, apparatus, and electronic device. The method includes configuring one of the two transmission channels to transmit the uplink signal according to the signal transmission power when the electronic device enters service mode in a cellular network. This is done when the signal transmission power is less than or equal to the single-channel power limit of the transmission channel and the uplink signal transmission stream number is 1, instead of using the two transmission channels to evenly distribute the transmission power. Under the condition of satisfying the same signal transmission power, radio frequency power consumption and heat generation can be effectively reduced, thereby improving the device's battery life.

Description

Technical Field

[0001] This specification relates to the field of wireless communication technology, specifically to a radio frequency control method, apparatus, and electronic device. Background Technology

[0002] With the popularization and application of cellular frequency bands such as 4G and 5G NR (New Radio), MIMO (Multiple Input Multiple Output) technology is widely used in terminal devices. In order to ensure signal quality, MAS (Multi Antenna Selection) technology supports the switching of the transmit antenna (Tx) on multiple antennas in the MIMO system.

[0003] In related technologies, the uplink signal quality is poor due to the power limitation of single-Tx channel antenna systems (e.g., only supporting a maximum power level of PC3). Some mobile terminals' MIMO systems support dual-Tx channels, meaning two antennas transmit uplink signals simultaneously, which can effectively improve the transmission power of the uplink signal (e.g., reaching the PC2 power level). However, in related technologies, dual-Tx antenna systems generate more heat, increasing device power consumption and reducing device battery life. Summary of the Invention

[0004] To optimize the power consumption and performance of a dual-Tx antenna system, embodiments of this specification provide a radio frequency control method, apparatus, electronic device, storage medium, and computer program product.

[0005] Firstly, this specification provides a radio frequency control method, including:

[0006] When the cellular network of an electronic device enters service mode, the uplink signal transmission power and number of streams are determined based on the reference signal sent by the base station. The cellular network antenna of the electronic device includes two transmission channels.

[0007] In response to the signal transmission power being less than or equal to the single-channel power limit and the stream number being 1, one of the two transmission channels is configured to transmit an uplink signal at the signal transmission power.

[0008] In some embodiments, the radio frequency control method provided in this specification further includes:

[0009] In response to the number of streams being 2, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial multiplexing is used to control the two transmission channels to send different uplink signal resources respectively.

[0010] In some embodiments, the radio frequency control method provided in this specification further includes:

[0011] In response to the signal transmission power being greater than the single-channel power limit and the number of streams being 1, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial diversity is used to control the two transmission channels to send the same uplink signal resources.

[0012] In some implementations, configuring the target transmit power of each transmit channel according to the signal transmit power includes:

[0013] The transmission power of each transmission channel is evenly distributed so that the sum of the target transmission power of the two transmission channels is greater than or equal to the signal transmission power.

[0014] In some embodiments, the radio frequency control method provided in this specification further includes:

[0015] When an electronic device enters service mode on a cellular network, the reference signal power value is determined based on the reference signal sent by the base station;

[0016] The signal environment in which the electronic device is currently located is determined based on the reference signal power value. The signal environment includes a strong signal environment and a weak signal environment.

[0017] In some implementations, the step of configuring one of the two transmit channels to transmit an uplink signal at the signal transmit power in response to the signal transmit power being less than or equal to the single-channel power limit and the stream number being 1 includes:

[0018] When the signal environment is a strong signal environment, in response to the signal transmission power being less than or equal to the single-channel power limit and the number of streams being 1, one of the two transmission channels is configured to transmit an uplink signal at the signal transmission power.

[0019] In some embodiments, the radio frequency control method provided in this specification further includes:

[0020] In the case of a weak signal environment, in response to the number of streams being 1, the target transmit power of each transmit channel is configured according to the signal transmit power, and spatial diversity is used to control the two transmit channels to send the same uplink signal resources, wherein the target transmit power is equal to the signal transmit power.

[0021] Secondly, embodiments of this specification provide a radio frequency control device, including:

[0022] The radio frequency receiving module is configured to determine the uplink signal transmission power and number of streams based on the reference signal sent by the base station when the cellular network of the electronic device enters service mode. The cellular network antenna of the electronic device includes two transmission channels.

[0023] The radio frequency transmission module is configured to transmit an uplink signal at the signal transmission power in response to the signal transmission power being less than or equal to the single-channel power limit and the number of streams being 1.

[0024] In some implementations, the radio frequency transmitting module is configured to:

[0025] In response to the number of streams being 2, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial multiplexing is used to control the two transmission channels to send different uplink signal resources respectively.

[0026] In some implementations, the radio frequency transmitting module is configured to:

[0027] In response to the signal transmission power being greater than the single-channel power limit and the number of streams being 1, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial diversity is used to control the two transmission channels to send the same uplink signal resources.

[0028] In some implementations, the radio frequency transmitting module is configured to:

[0029] The transmission power of each transmission channel is evenly distributed so that the sum of the target transmission power of the two transmission channels is greater than or equal to the signal transmission power.

[0030] In some embodiments, the radio frequency receiving module is configured to:

[0031] When an electronic device enters service mode on a cellular network, the reference signal power value is determined based on the reference signal sent by the base station;

[0032] The signal environment in which the electronic device is currently located is determined based on the reference signal power value. The signal environment includes a strong signal environment and a weak signal environment.

[0033] In some implementations, the radio frequency transmitting module is configured to:

[0034] When the signal environment is a strong signal environment, in response to the signal transmission power being less than or equal to the single-channel power limit and the number of streams being 1, one of the two transmission channels is configured to transmit an uplink signal at the signal transmission power.

[0035] In some implementations, the radio frequency transmitting module is configured to:

[0036] In the case of a weak signal environment, in response to the number of streams being 1, the target transmit power of each transmit channel is configured according to the signal transmit power, and spatial diversity is used to control the two transmit channels to send the same uplink signal resources, wherein the target transmit power is equal to the signal transmit power.

[0037] Thirdly, embodiments of this specification provide an electronic device, including:

[0038] A cellular radio frequency system, comprising two transmit channels;

[0039] processor;

[0040] The memory stores computer instructions that cause the processor to perform the method described in any of the above embodiments.

[0041] Fourthly, embodiments of this specification provide a storage medium storing computer instructions for implementing the methods described in any of the above embodiments.

[0042] Fifthly, embodiments of this specification provide a computer program product for implementing the methods described in any of the above embodiments.

[0043] The radio frequency control method described in this specification, when the cellular network of an electronic device enters service mode, if the signal transmission power is less than or equal to the single-channel power limit of the transmission channel and the uplink signal transmission stream number is 1, configures one of the two transmission channels to transmit the uplink signal according to the signal transmission power, instead of using the two transmission channels to evenly distribute the transmission power. Under the condition of satisfying the same signal transmission power, it can effectively reduce radio frequency power consumption and heat generation, thereby improving the device's battery life. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of communication between electronic devices and base stations in some embodiments of this specification.

[0046] Figure 2 This is a flowchart of the radio frequency control method in some embodiments of this specification.

[0047] Figure 3 This is a flowchart of the radio frequency control method in some embodiments of this specification.

[0048] Figure 4 This is a structural block diagram of the radio frequency control device in some embodiments of this specification.

[0049] Figure 5 These are structural block diagrams of electronic devices in some embodiments of this specification. Detailed Implementation

[0050] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure. Furthermore, the technical features involved in the different embodiments of this disclosure described below can be combined with each other as long as they do not conflict with each other.

[0051] In antenna systems, MIMO stands for Multiple Input Multiple Output. MIMO antenna systems primarily improve transmission efficiency by simultaneously transmitting multiple different data streams in the air. Massive MIMO technology increases the number of antennas, enabling the antenna system to transmit more data streams simultaneously, thereby increasing system capacity and spectral efficiency without increasing spectrum resources.

[0052] Taking mobile terminals as an example, for certain FDD (Frequency-Division Duplexing) frequency bands, the receiving antenna of the mobile terminal can adopt a 4*4 MIMO system. 4*4 MIMO means that the base station's transmitting end uses 4 antennas to send data, and the mobile phone's receiving end also uses 4 antennas to receive data. Compared with a single antenna system, the transmission efficiency can be increased by four times.

[0053] Currently, a typical 4x4 MIMO antenna system in a mobile terminal includes one transmit channel (Tx) and four receive channels (Rx). MAS (Multi Antenna Selection) technology requires that the Tx antenna can switch between the four antennas in the MIMO system.

[0054] Power Class (PC) is a parameter used to describe the transmitted signal power of an RF system. Taking a single Tx channel antenna system as an example, the power bottleneck of the antenna transmitting uplink signals (i.e., Tx signals, signals sent by the mobile phone to the base station) is limited by the device capabilities of a single Tx channel. Generally, it can only support a maximum power class of PC3. This leads to poor uplink signal quality in some weak signal scenarios (such as in the wild or at sea), affecting cellular communication.

[0055] To improve uplink signal quality, some mobile terminals use dual Tx channels in their antenna systems, meaning that two antennas can transmit uplink signals simultaneously. This effectively compensates for the power limitation of a single channel, increases the transmission power of the uplink signal, and can reach the PC2 power level. This not only meets the needs of users during high-bandwidth scenarios but also improves communication quality in weak signal scenarios.

[0056] However, the power consumption of the dual-Tx antenna system increases significantly during operation, leading to severe heat generation. Tests showed that when transmitting uplink signals at the same total power, the dual-Tx system consumes 60% more power than the single-Tx system, resulting in reduced battery life and increased heat generation, negatively impacting user experience.

[0057] Based on this, the embodiments of this specification provide a radio frequency control method, device, electronic device, storage medium, and computer program product, which aim to optimize the uplink signal power control logic of a dual-Tx antenna system, switch different transmission modes according to different power requirements, thereby balancing radio frequency performance and power consumption, reducing heat generation, and extending device battery life.

[0058] To facilitate understanding and explanation, some of the nouns and terms that appear in the following text will be explained and clarified first.

[0059] Cellular network: A wireless communication technology that enables communication between mobile phones and base stations. By dividing the network service area into multiple cells, it ensures seamless switching between different cells. Unless otherwise specified, the term "cellular network" in this manual primarily refers to the cellular network system used by electronic devices to communicate wirelessly with base stations.

[0060] Idle state: also called idle mode, refers to the standby state of the mobile phone's cellular network, in which there is no or almost no data communication between the mobile phone and the base station.

[0061] Service mode: refers to the mobile phone performing cellular communication services, such as making and receiving calls, and accessing the Internet. At this time, the mobile phone and the base station maintain data communication.

[0062] Uplink (UL): In cellular communication, uplink refers to the communication direction from the mobile phone to the base station. The uplink signal is the signal sent from the mobile phone to the base station; for the mobile phone, the uplink signal is also called the Tx signal.

[0063] Downlink (DL) in cellular communication refers to the communication method from the base station to the mobile phone. The downlink signal is the signal sent from the base station to the mobile phone; for the mobile phone, the downlink signal is also called the Rx signal.

[0064] RSRP, short for Reference Signal Received Power, is a key parameter in cellular communication. The reference signal is a special signal used for various signal processing functions, periodically transmitted from the base station to the mobile phone. RSRP represents the power value of the reference signal received by the mobile phone. The RSRP value effectively assesses the signal quality between the mobile phone and the base station; a higher RSRP value indicates better signal strength. The mobile phone also uses the RSRP value to decide whether to reselect a cell. The mobile phone periodically sends the RSRP value to the base station, allowing the base station to optimize network performance based on the RSRP value, such as allocating channel resources and increasing base station power.

[0065] Signal transmit power Ptx: refers to the power of the mobile phone to transmit uplink signals. During cellular network communication, the mobile phone can select an appropriate signal transmit power based on the RSRP value to ensure that the uplink signal can meet the communication requirements with the base station. Moreover, during the communication process, the mobile phone can also dynamically adjust the signal transmit power according to the requirements of the base station.

[0066] Stream number: Also known as the number of transport layers, in cellular communication, it refers to the number of independent spatial paths used for data transmission. These transport layers are implemented using MIMO technology, providing the ability to send and receive multiple data streams simultaneously through multiple antennas. In the embodiments described in this specification, it refers to the number of channels through which the mobile phone transmits uplink signals. One stream means that the uplink signal is transmitted through one independent data stream, and two streams mean that the uplink signal is divided into two independent data streams for transmission.

[0067] dBm is a unit of power used to represent power levels relative to 1 milliwatt (mW). dBm is a logarithmic unit, which can be simply understood as a doubling of power for every 3 dBm difference. For example, 23 dBm is twice the power of 20 dBm.

[0068] Single-channel power limit: This refers to the maximum uplink signal transmission power that each transmit channel can provide, determined by the hardware capabilities of the mobile phone's radio frequency system. For a dual-Tx channel system, the power limit for both Tx channels is generally the same.

[0069] In some embodiments, this specification provides a radio frequency control method that can be applied to an electronic device. The electronic device can be any suitable type of device, such as a mobile phone, tablet computer, wearable device, computer, etc., and this specification does not limit it.

[0070] In the embodiments described in this specification, the electronic device includes a cellular network antenna system, which provides wireless communication capabilities between the electronic device and a base station. Furthermore, the cellular network antenna system of the electronic device includes two transmit channels, i.e., dual Tx channels. This means that the electronic device can simultaneously transmit up to two independent uplink signal data streams. It is also backward compatible with a single Tx channel system, i.e., it can transmit uplink signals using only one transmit channel.

[0071] For example Figure 1 As shown, when a mobile phone communicates with a base station, the mobile phone can send uplink signals through up to two transmit antennas, Tx1 and / or Tx2. Tx1 and Tx2 can be any two antennas selected from the MIMO system based on multiple antenna selection (MAS) technology. Those skilled in the art will understand this, and it will not be described in detail here.

[0072] like Figure 2 As shown, in some embodiments, the radio frequency control method exemplified in this specification includes:

[0073] S210. When the cellular network of an electronic device enters service mode, determine the uplink signal transmission power and stream number based on the reference signal sent by the base station.

[0074] S220, in response to a signal transmission power less than or equal to the uplink power of a single channel and a stream number of 1, configure one of the two transmission channels to transmit an uplink signal at the signal transmission power.

[0075] In the embodiments described in this specification, the electronic device is a mobile phone as an example. The mobile phone's radio frequency system includes a cellular network antenna system. For example, the cellular network antenna system uses a 4*4 MIMO receiving antenna and a 2*2 MIMO transmitting antenna as an example, indicating that the cellular network antenna system includes a total of 4 antennas. Based on multiple antenna selection (MAS) technology, any one or more of the 4 antennas can be used as receiving antennas, and any one or two of the 4 antennas can be used as transmitting antennas. Specifically, the cellular network antenna system includes 2 transmit channels (Tx channels), where each transmit channel can be connected to any one antenna, thereby using the connected antenna as a Tx antenna to transmit uplink signals.

[0076] In the embodiments described in this specification, when the electronic device turns on the cellular network (e.g., when the electronic device is powered on or switched out of airplane mode), the cellular network system can initialize network search and establish a cellular network connection with the base station. At this time, the electronic device is in the linked state, indicating that the electronic device is normally connected to the network.

[0077] Once an electronic device enters the linked state, it can determine whether there is a service requirement. A service requirement refers to the need for the electronic device to communicate with the base station via cellular networks, such as when the electronic device makes or receives a phone call or accesses the internet.

[0078] If the electronic device does not currently have service requirements, it can fall back from the linked state to the idle state, which is the state of the electronic device in standby mode. At this time, the electronic device is not performing cellular communication services, and the Tx channel can be turned off, thereby reducing standby power consumption.

[0079] If an electronic device currently has a service requirement, it means that the electronic device is performing cellular communication services, such as making and receiving calls, sending and receiving text messages, or accessing the Internet. At this time, the electronic device enters service mode and needs to communicate with the base station via the cellular network.

[0080] It is understandable that after an electronic device establishes a cellular communication connection with a base station through a cellular network, the base station periodically sends a reference signal (RS) to the electronic device. The electronic device measures the strength of the current signal environment between itself and the base station based on the average power level of the received reference signal. RSRP is the reference signal power value (hereinafter referred to as RSRP value). The electronic device determines the current RSRP value based on the received reference signal, and the signal transmission power of the electronic device sending uplink signals (Tx signals) needs to be determined based on the RSRP value.

[0081] In some implementations, the electronic device can determine the current uplink signal transmit power (Ptx) based on the RSRP value. In other implementations, the electronic device can periodically send signal measurement reports to the base station, including RSRP values. The base station then determines the uplink signal transmit power Ptx based on the RSRP value and transmits the signal transmit power Ptx to the electronic device. Furthermore, during communication between the electronic device and the base station, the base station can adjust the uplink signal transmit power Ptx based on the current signal environment, thereby optimizing network performance.

[0082] Based on the foregoing, it can be understood that for a dual-Tx channel MIMO antenna system, its uplink signal can support two-stream data transmission, meaning that both Tx channels can simultaneously transmit uplink signals. Therefore, during cellular communication between the electronic device and the base station, the base station allocates resources to the electronic device and configures the number of uplink signal streams transmitted by the electronic device, that is, it specifies whether the electronic device transmits uplink signals with one stream or two streams.

[0083] In a dual-Tx channel system of related technologies, when an electronic device transmits an uplink signal, the total power needs to be evenly distributed across the two Tx channels according to the signal transmission power Ptx. For example, assuming the signal transmission power Ptx of the electronic device transmitting the uplink signal is 27dBm, then Tx1 channel and Tx2 channel can be configured to transmit the uplink signal at a power of 24dBm each, and the total transmission power of the two Tx channels satisfies the signal transmission power Ptx = 27dBm.

[0084] This method can meet the power requirements of high-power uplink signal transmission scenarios, achieving the PC2 power level. However, in scenarios with lower signal transmission power (Ptx), this dual-Tx channel transmission method will introduce additional power consumption, leading to increased power consumption of electronic devices and affecting their battery life.

[0085] For example, when the signal transmit power Ptx is less than or equal to the single-channel power limit and the uplink signal transmission stream number is 1, the single-channel capability can meet the uplink signal transmit power requirements. If the transmit power is allocated across two Tx channels, the path loss from two transmit channels will be greater. Through actual testing, under the same total transmit power, transmitting uplink signals through two Tx channels will result in a power consumption increase of approximately 60%.

[0086] Therefore, in the embodiments of this specification, when the cellular network of the electronic device is in service mode, the signal transmission power and the number of uplink signal streams can be used as the basis for judgment to switch different uplink signal transmission modes under different scenario requirements. That is, the switching and power of the two Tx channels can be controlled to optimize the power control performance under different service scenarios and balance RF performance and power consumption.

[0087] For example, in some implementations, after determining the signal transmission power Ptx, the electronic device can compare the signal transmission power Ptx with the single-channel capability limit Pmax. The single-channel capability limit Pmax refers to the upper limit of the uplink signal transmission power that the Tx channel can provide, and Pmax is determined by the hardware performance of the Tx channel.

[0088] In the embodiments described in this specification, the single-channel capability limit Pmax represents the maximum transmit power that the Tx channel can provide. If Ptx ≤ Pmax, it means that the transmit power of the uplink signal does not exceed the single-channel power limit, and a single Tx channel can meet the transmit power requirements of the uplink signal. At the same time, if the number of uplink signal transmission streams is 1, it means that only one data stream is needed for the uplink signal transmission. In this case, the electronic device can configure one of the two Tx channels to transmit the uplink signal at the signal transmit power Ptx, while the other Tx channel can be turned off or have its power reduced to the minimum.

[0089] For example, suppose the single-channel capability limit of a two-channel Tx system is Pmax = 25dBm, the signal transmit power is Ptx = 24dBm, and the uplink signal stream count is 1. If the electronic device determines that the signal transmit power Ptx = 24dBm is less than the single-channel capability limit Pmax = 25dBm and the stream count is 1, then it can control channel Tx1 to transmit the uplink signal at 24dBm power, while channel Tx2 can reduce its power to the minimum or be turned off. In this case, only channel Tx1 transmits the uplink signal, while channel Tx2 no longer transmits it. As mentioned earlier, under the same signal transmit power conditions, transmitting the uplink signal through a single Tx channel can effectively reduce RF power consumption and heat generation, thereby improving the device's battery life.

[0090] As can be seen from the above, in the embodiments of this specification, by optimizing the uplink signal power control logic of the dual Tx channel system, when the signal transmission power does not exceed the single channel power limit and the number of streams is 1, only 1 Tx channel is configured for uplink signal transmission, instead of using 2 Tx channels to evenly distribute the transmission power. Under the condition of satisfying the same signal transmission power, the RF power consumption and heat generation are effectively reduced, thereby improving the device's battery life.

[0091] Based on the above, it can be understood that the number of uplink signal streams refers to the number of channels when an electronic device sends uplink signals. One stream means that the uplink signal is transmitted through one independent data stream, and two streams mean that the uplink signal is transmitted by two independent data streams.

[0092] In some implementations, when the number of streams is 2, it means that the two Tx channels of the electronic device each need to transmit an independent data stream. This data transmission method is called spatial multiplexing. Spatial multiplexing refers to increasing the throughput of data transmission and thus improving the data transmission rate by transmitting different data streams on different antennas. For example, when the electronic device transmits an uplink signal, it evenly distributes the uplink signal data resources across the two Tx channels, so that Tx1 channel and Tx2 channel each transmit one data stream. At the receiving end (i.e., the base station), the data resources transmitted by the electronic device are obtained based on the data from the two data streams.

[0093] In other words, in the embodiments described in this specification, when the number of uplink signal streams is 2, regardless of whether the signal transmit power Ptx is greater than the single-channel power limit Pmax, spatial multiplexing technology is required to control the transmission of uplink signals through the two Tx channels. During this process, the data resources and transmit power of the two Tx channels can be evenly distributed, ensuring that the sum of the transmit power of the two Tx channels meets the signal transmit power Ptx requirement. For example, assuming the signal transmit power Ptx = 24dBm, the target transmit power of Tx1 and Tx2 channels can be configured to 21dBm respectively, so that the sum of their powers meets the requirement of signal transmit power Ptx = 24dBm.

[0094] In some implementations, when the signal transmit power Ptx is greater than the single-channel power limit Pmax and the stream number is 1, it indicates that the uplink signal transmit power requirement exceeds the single-channel power limit. In this case, the two Tx channels of the electronic device can transmit the uplink signal based on spatial diversity technology. Spatial diversity refers to improving signal reliability by transmitting the same data signal on different antennas. For example, Tx1 and Tx2 channels transmit the same uplink signal, where Tx1 acts as the primary transmit (PTx) and Tx2 acts as the diversity transmit (DTx). Simultaneously, the signal transmit power Ptx can be evenly distributed across the two Tx channels. For example, assuming the signal transmit power Ptx = 24 dBm, the target transmit power for both Tx1 and Tx2 channels can be configured to 21 dBm, so that the sum of their powers meets the requirement of a signal transmit power Ptx = 24 dBm.

[0095] As mentioned above, the RSRP value reflects the quality of the signal environment for communication between the electronic device and the base station. To better balance RF performance and power consumption, in some embodiments of this specification, the strength of the cellular signal can be determined based on the RSRP value. If the RSRP value is large, it indicates good signal quality and a strong signal environment, in which case the power consumption can be prioritized to be reduced using the methods described above. Conversely, if the RSRP value is small, it indicates poor signal quality and a weak signal environment, in which case ensuring signal quality should be prioritized. This will be explained below.

[0096] like Figure 3 As shown, in some embodiments, the radio frequency control method exemplified in this specification includes the following process for determining the signal environment:

[0097] S310. When the cellular network of an electronic device enters service mode, the reference signal power value is determined based on the reference signal sent by the base station.

[0098] S320. Determine the current signal environment of the electronic device based on the reference signal power value.

[0099] As mentioned above, after an electronic device establishes a cellular communication connection with a base station through a cellular network, the base station will periodically send a reference signal to the electronic device. The electronic device can then determine the power value of the reference signal, i.e., the RSRP value, based on the power level of the received reference signal.

[0100] In some embodiments of this specification, a power threshold can be preset to evaluate the quality of the signal environment. This power threshold represents a critical value indicating whether the electronic device is currently in a strong signal environment or a weak signal environment. If the RSRP value is greater than or equal to this power threshold, the signal environment is determined to be a strong signal environment. Conversely, if the RSRP value is less than this power threshold, the signal environment is determined to be a weak signal environment.

[0101] For example, taking a power threshold of -100dBm as an example, assuming an RSRP value of -40dBm, if the RSRP value is greater than the power threshold, it indicates that the current signal environment is a strong signal environment. If the RSRP value is -120dBm, and the RSRP value is less than the power threshold, it indicates that the current signal environment is a weak signal environment.

[0102] Of course, those skilled in the art will understand that the power threshold value is not limited to the above example, and can be selected according to the specific scenario requirements. This specification does not impose any restrictions on this.

[0103] In some implementations, when the signal environment is a strong signal environment, it indicates that the cellular network signal quality of the current electronic device is high, and in this case, reducing radio frequency power consumption can be prioritized. That is, when the signal environment is determined to be a strong signal environment, the aforementioned steps can be performed. Figure 2 The method steps of the implementation are designed to reduce power consumption.

[0104] Specifically, in a strong signal environment, if the signal transmission power Ptx is less than or equal to the single-channel power limit Pmax and the number of streams is 1, one of the Tx channels can be configured to send uplink signals according to the signal transmission power Ptx, while the other Tx channel can be turned off or have its power reduced to the minimum.

[0105] In other implementations, when the signal environment is weak, it indicates that the cellular network signal quality of the current electronic device is poor. In order to ensure the quality of cellular communication and reduce the risk of data packet loss, the signal transmission power Ptx is generally high and the number of streams is configured to be 1.

[0106] In this case, spatial multiplexing can be used to control both Tx channels to transmit the same uplink signal resources, and the signal transmission power Ptx is no longer evenly distributed on the two Tx channels, and the power of each Tx channel is configured to be transmitted as Ptx.

[0107] For example, in one scenario, the signal environment is weak, the signal transmit power Ptx is 24dBm, and the stream count is 1. If the transmit power is evenly distributed, the target transmit power for each Tx channel is 21dBm, and the sum of the target transmit power for the two Tx channels is 24dBm. However, in the embodiment described in this specification, the target transmit power for each Tx channel is configured to be 24dBm, and the sum of the target transmit power for the two Tx channels will reach 27dBm. Simultaneously, utilizing the principle of spatial multiplexing, the uplink signals transmitted by the two Tx channels are identical. Even if one signal is interfered with, the receiving end (i.e., the base station) can still normally receive the uplink signal resources of the other channel, improving the reliability of cellular communication.

[0108] It is understandable that if the signal transmission power Ptx exceeds the single-channel power limit Pmax, then two Tx channels can be configured to transmit at the single-channel power limit Pmax. In this case, the total transmission power of the uplink signal can reach the PC2 power level, ensuring communication performance.

[0109] As shown above, in weak signal environments, adjusting the power mode of the two Tx channels increases the uplink signal transmission power, thereby improving RF performance and enhancing the reliability and stability of cellular communication. Conversely, in strong signal environments, adjusting the uplink signal transmission of one Tx channel effectively reduces RF power consumption and heat generation while maintaining the same signal transmission power, thus improving device battery life.

[0110] In other words, the implementation method described in this specification can select an appropriate uplink signal transmission mode according to different cellular network operating conditions, thereby effectively balancing radio frequency performance and power consumption, making radio frequency control more intelligent and efficient, reducing heat generation and power consumption of electronic devices, and extending device battery life.

[0111] In some embodiments, this specification provides a radio frequency control device, such as... Figure 4 As shown, the device includes:

[0112] The radio frequency receiving module 10 is configured to determine the signal transmission power and number of uplink signals based on the reference signal sent by the base station when the cellular network of the electronic device enters the service mode. The cellular network antenna of the electronic device includes two transmission channels.

[0113] The radio frequency transmission module 20 is configured to transmit an uplink signal at the signal transmission power in response to the signal transmission power being less than or equal to the single-channel power limit and the number of streams being 1.

[0114] In some embodiments, the radio frequency transmitting module 20 is configured to:

[0115] In response to the number of streams being 2, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial multiplexing is used to control the two transmission channels to send different uplink signal resources respectively.

[0116] In some embodiments, the radio frequency transmitting module 20 is configured to:

[0117] In response to the signal transmission power being greater than the single-channel power limit and the number of streams being 1, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial diversity is used to control the two transmission channels to send the same uplink signal resources.

[0118] In some embodiments, the radio frequency transmitting module 20 is configured to:

[0119] The transmission power of each transmission channel is evenly distributed so that the sum of the target transmission power of the two transmission channels is greater than or equal to the signal transmission power.

[0120] In some embodiments, the radio frequency receiving module 10 is configured to:

[0121] When an electronic device enters service mode on a cellular network, the reference signal power value is determined based on the reference signal sent by the base station;

[0122] The signal environment in which the electronic device is currently located is determined based on the reference signal power value. The signal environment includes a strong signal environment and a weak signal environment.

[0123] In some embodiments, the radio frequency transmitting module 20 is configured to:

[0124] When the signal environment is a strong signal environment, in response to the signal transmission power being less than or equal to the single-channel power limit and the number of streams being 1, one of the two transmission channels is configured to transmit an uplink signal at the signal transmission power.

[0125] In some embodiments, the radio frequency transmitting module 20 is configured to:

[0126] In the case of a weak signal environment, in response to the number of streams being 1, the target transmit power of each transmit channel is configured according to the signal transmit power, and spatial diversity is used to control the two transmit channels to send the same uplink signal resources, wherein the target transmit power is equal to the signal transmit power.

[0127] In some embodiments, this specification provides an electronic device, which can be any suitable type of device, such as a mobile phone, tablet computer, wearable device, computer, etc., and this specification does not limit this. In some embodiments, the electronic device includes:

[0128] A cellular radio frequency system, comprising two transmit channels;

[0129] processor;

[0130] The memory stores computer instructions that cause the processor to perform the method described in any of the above embodiments.

[0131] In some embodiments, this specification provides a storage medium storing computer instructions for implementing the methods described in any of the above embodiments.

[0132] In some embodiments, this specification provides a computer program product for implementing the methods described in any of the above embodiments.

[0133] Figure 5 The diagram illustrates the electronic device structure in some embodiments of this disclosure, which will be discussed below in conjunction with... Figure 5 Some embodiments of the electronic device described herein will be explained.

[0134] Reference Figure 5 The electronic device 1800 may include one or more of the following components: a processing component 1802, a memory 1804, a power supply component 1806, a multimedia component 1808, an audio component 1810, an input / output (I / O) interface 1812, a sensor component 1816, and a communication component 1818.

[0135] Processing component 1802 typically controls the overall operation of electronic device 1800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1802 may include one or more processors 1820 to execute instructions. Furthermore, processing component 1802 may include one or more modules to facilitate interaction between processing component 1802 and other components. For example, processing component 1802 may include a multimedia module to facilitate interaction between multimedia component 1808 and processing component 1802. As another example, processing component 1802 may read executable instructions from memory to implement relevant functions of the electronic device.

[0136] Memory 1804 is configured to store various types of data to support the operation of electronic device 1800. Examples of this data include instructions for any application or method operating on electronic device 1800, contact data, phonebook data, messages, pictures, videos, etc. Memory 1804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0137] Power supply component 1806 provides power to various components of electronic device 1800. Power supply component 1806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1800.

[0138] The multimedia component 1808 includes a display screen that provides an output interface between the electronic device 1800 and the user. In some embodiments, the multimedia component 1808 includes a front-facing camera and / or a rear-facing camera. When the electronic device 1800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0139] Audio component 1810 is configured to output and / or input audio signals. For example, audio component 1810 includes a microphone (MIC) configured to receive external audio signals when electronic device 1800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1804 or transmitted via communication component 1818. In some embodiments, audio component 1810 also includes a speaker for outputting audio signals.

[0140] I / O interface 1812 provides an interface between processing component 1802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0141] Sensor assembly 1816 includes one or more sensors for providing state assessments of various aspects of electronic device 1800. For example, sensor assembly 1816 may detect the on / off state of electronic device 1800, the relative positioning of components such as the display and keypad of electronic device 1800, changes in position of electronic device 1800 or a component of electronic device 1800, the presence or absence of user contact with electronic device 1800, the orientation or acceleration / deceleration of electronic device 1800, and temperature changes of electronic device 1800. Sensor assembly 1816 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1816 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1816 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0142] Communication component 1818 is configured to facilitate wired or wireless communication between electronic device 1800 and other devices. Electronic device 1800 can access wireless networks based on communication standards, such as Wi-Fi, 2G, 3G, 4G, 5G, or 6G, or combinations thereof. In one exemplary embodiment, communication component 1818 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1818 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0143] In an exemplary embodiment, the electronic device 1800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0144] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the embodiments. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this disclosure.

Claims

1. A radio frequency control method, characterized in that, include: When the cellular network of an electronic device enters service mode, the uplink signal transmission power and number of streams are determined based on the reference signal sent by the base station. The cellular network antenna of the electronic device includes two transmission channels. In response to the signal transmission power being less than or equal to the single-channel power limit and the stream number being 1, one of the two transmission channels is configured to transmit an uplink signal at the signal transmission power.

2. The radio frequency control method according to claim 1, characterized in that, Also includes: In response to the number of streams being 2, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial multiplexing is used to control the two transmission channels to send different uplink signal resources respectively.

3. The radio frequency control method according to claim 1, characterized in that, Also includes: In response to the signal transmission power being greater than the single-channel power limit and the number of streams being 1, the target transmission power of each transmission channel is configured according to the signal transmission power, and spatial diversity is used to control the two transmission channels to send the same uplink signal resources.

4. The radio frequency control method according to claim 2 or 3, characterized in that, Configure the target transmission power of each transmission channel according to the signal transmission power, including: The transmission power of each transmission channel is evenly distributed so that the sum of the target transmission power of the two transmission channels is greater than or equal to the signal transmission power.

5. The radio frequency control method according to claim 1, characterized in that, Also includes: When an electronic device enters service mode on a cellular network, the reference signal power value is determined based on the reference signal sent by the base station; The signal environment in which the electronic device is currently located is determined based on the reference signal power value. The signal environment includes a strong signal environment and a weak signal environment.

6. The radio frequency control method according to claim 5, characterized in that, The step of configuring one of the two transmission channels to transmit an uplink signal at the specified signal transmission power in response to the signal transmission power being less than or equal to the single-channel power limit and the stream number being 1 includes: When the signal environment is a strong signal environment, in response to the signal transmission power being less than or equal to the single-channel power limit and the number of streams being 1, one of the two transmission channels is configured to transmit an uplink signal at the signal transmission power.

7. The method according to claim 5, characterized in that, Also includes: In the case of a weak signal environment, in response to the number of streams being 1, the target transmit power of each transmit channel is configured according to the signal transmit power, and spatial diversity is used to control the two transmit channels to send the same uplink signal resources, wherein the target transmit power is equal to the signal transmit power.

8. A radio frequency control device, characterized in that, include: The radio frequency receiving module is configured to determine the uplink signal transmission power and number of streams based on the reference signal sent by the base station when the cellular network of the electronic device enters service mode. The cellular network antenna of the electronic device includes two transmission channels. The radio frequency transmission module is configured to transmit an uplink signal at the signal transmission power in response to the signal transmission power being less than or equal to the single-channel power limit and the number of streams being 1.

9. An electronic device, characterized in that, include: A cellular radio frequency system, comprising two transmit channels; processor; A memory storing computer instructions for causing a processor to perform the method according to any one of claims 1 to 7.

10. A computer program product, characterized in that, The computer program product is used to implement the method according to any one of claims 1 to 7.

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