CN-122026966-A - Communication terminal antenna low-power-consumption switching control method and system based on environment awareness

Abstract

The invention discloses a communication terminal antenna low-power consumption switching control method and system based on environment awareness. The method comprises the steps of collecting environment data in real time through an environment light sensor and an acceleration sensor which are arranged in a terminal, judging the use scene (handheld/placement) of the terminal based on preset threshold logic, dynamically starting a corresponding antenna group according to the scene and adjusting the beam direction, and adopting a progressive transition strategy when the scene is switched. The method and the device do not need to rely on baseband signal quality feedback, realize pre-judgment of antenna switching in advance, solve the problem of signal mutation caused by shielding in the prior art, and are suitable for mobile communication equipment such as smart phones, flat plates, CPE and the like.

Inventors

• CHENG LONG

Assignees

• 程龙

Dates

Publication Date

20260512

Application Date

20260211

Claims (7)

1. 1. A method for controlling antenna low power switching of a communication terminal, comprising: s1, periodically acquiring ambient illumination intensity data and triaxial acceleration data through an ambient light sensor and an acceleration sensor which are arranged in a communication terminal; S2, judging a current use scene of the communication terminal based on a preset illumination intensity threshold range and an acceleration data variance threshold range, wherein the use scene comprises a handheld scene and a placement scene; S3, if the hand-held scene is judged, the antenna switch is controlled to start the main antenna and close the auxiliary antenna, if the hand-held scene is judged, the antenna switch is controlled to start the auxiliary antenna array, and the radiation direction of the auxiliary antenna array is dynamically adjusted according to the equipment orientation estimated by the acceleration data; and S4, when the use scene changes, adopting a time progressive strategy to smoothly switch the working state of the antenna.
2. 2. The method according to claim 1, wherein in step S2, the illumination intensity threshold value ranges from 30 to 100 Lux, and the acceleration data variance threshold value ranges from 0.3 to 1.0 m/S2.
3. 3. The method according to claim 1, wherein in step S4, the switching duration of the time progressive strategy is 0.3-1.0 seconds.
4. 4. The method of claim 1, wherein the primary antenna is located in a top region of the communication terminal and the secondary antenna array is distributed in bottom and side regions of the communication terminal.
5. 5. An antenna switching control system implementing the method of any of claims 1-4, comprising: The sensor module multiplexes the existing ambient light sensor and acceleration sensor of the communication terminal; the scene judging module is integrated in the MCU of the communication terminal and is used for executing threshold logic judgment; the antenna control module outputs a control signal to the radio frequency switch chip; The beam adjusting module is used for configuring radiation parameters of the auxiliary antenna array through the serial interface; the scene judging module, the antenna control module and the beam adjusting module are all operated on the MCU without calling baseband processor resources.
6. 6. The system of claim 5, wherein the sensor module is connected to the MCU via an I2C bus.
7. 7. The system of claim 5, wherein the radio frequency switch chip is of SPDT or SP4T type, controlled by GPIO signals of the antenna control module.

Description

Communication terminal antenna low-power-consumption switching control method and system based on environment awareness Technical Field The invention belongs to the technical field of mobile communication terminals, and particularly relates to an intelligent antenna control method and system combined with environmental sensor data, which are particularly suitable for a portable communication terminal with signal stability and endurance. Background Currently, antenna switching of a communication terminal generally depends on the problem of signal quality parameters (such as RSRP and SINR) reported by a base band: 1. Hysteresis defect that after a user holds a shielding antenna, a signal is deteriorated to trigger switching (response delay is more than 800 ms), so that video is blocked and conversation is easily interrupted (industry test report: elevator scene call drop rate is improved by 22%); 2. the false triggering problem is that the mere dependence on the proximity sensor can only identify the scene close to the ear, the states of a horizontal screen game, tabletop placement and the like can not be distinguished, and the false switching rate reaches 35%; 3. The power consumption burden is that the power consumption of the radio frequency module is increased due to the continuous full-open multi-antenna array (such as 4 multiplied by 4 MIMO), and the endurance of the terminal is shortened (the daily average power consumption is 8 percent). Although some schemes attempt to introduce an AI model, GPU participation is required, the calculation complexity is high, and the method is difficult to land at a low-end terminal. Industry pain points are in need of an antenna self-adaptive control scheme which is low in complexity, high in response speed and friendly in hardware. Disclosure of Invention The core innovation is as follows: 1. Triggering logic innovation, namely compared with post-remedying measures adopted by the traditional method after signal degradation, the post-prejudgment method driven by sensor data is adopted, so that the hysteresis problem is solved, and the creativity is clear; 2. compared with the traditional method which simply depends on the large calculated amount of the baseband and the AI model, the MCU light weight threshold value judgment is used, so that the calculation load is reduced; 3. compared with the traditional method, the method for multiplexing the existing sensor (light sensation and accelerometer) of the terminal has strong practicability and low industrialization threshold. Main scheme flow 1. Data acquisition, namely reading ambient light sensor value (Lux) and triaxial acceleration data in a 200ms period; 2. Scene determination, namely determining that a scene is placed if the illumination intensity is less than T 1 (30-100 Lux) and the acceleration variance is less than T 2 (0.3-1.0 m/s 2), otherwise, determining that a hand-held scene is achieved; antenna control: A hand-held scene, namely starting a top main antenna and closing a bottom auxiliary antenna; A scene is placed, namely a bottom auxiliary antenna array is started, and the direction of a beam main lobe is dynamically adjusted according to the direction of an acceleration vector; And (3) during the smooth transition, when the scene is changed, the antenna switching state and the beam weight are gradually adjusted within 0.5 second, so that signal jitter is avoided. The system comprises a sensor module (multiplexing the existing light sense/accelerometer of the terminal), a scene judging module (integrated in the MCU and executing threshold logic), an antenna control module (outputting signals to a radio frequency switch chip) and a beam adjusting module (configuring antenna array weights through an SPI interface). The beneficial effects are that: 1. the response speed is increased by more than 5 times compared with the traditional scheme; 2. Signal enhancement, namely, lifting a weak network scene (RSRP < -110 dBm) by 4.5dBR; 3. The daily average power consumption of the antenna module is reduced by 18.7 percent (laboratory data); 4. Zero hardware is added, namely, a terminal standard sensor is completely multiplexed, and the BOM cost is zero increased; 5. the universality is strong, the method is suitable for an Android/iOS system, and a baseband protocol stack does not need to be modified. Drawings FIG. 1 is a flow chart of the method of the invention FIG. 2 is a block diagram of a system module connection Detailed Description Example (taking a kilo-element class 5G smartphone as an example): the hardware foundation is that a BH1750 ambient light sensor and an MPU6050 accelerometer are built in a terminal, and MCU is STM32L4 series; Threshold configuration, T 1 =50 Lux (indoor illumination typical value), T 2 =0.6 m/s2 (stationary placement variance threshold); the execution process comprises the following steps: the user places the mobile phone on a desktop (illumination 45 Lux, acceleration variance 0