CN212115692U

CN212115692U - Electronic device

Info

Publication number: CN212115692U
Application number: CN202020626341.0U
Authority: CN
Inventors: 褚进峰; 周传标
Original assignee: Wingtech Communication Co Ltd
Current assignee: Wingtech Communication Co Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-08
Anticipated expiration: 2030-04-23

Abstract

The application relates to the technical field of electronic equipment and provides electronic equipment. The electronic device includes: a plurality of antenna assemblies, SAR sensors, range sensors, and a processor; the SAR sensor is respectively connected with at least two antenna assemblies in the plurality of antenna assemblies through a plurality of detection channels; the distance sensor is positioned on the front surface and/or the back surface of the electronic equipment; the processor is respectively connected with the SAR sensor, the distance sensor and the antenna assemblies and used for adjusting the radiation power of the antenna assemblies according to a first detection result output by the SAR sensor and a second detection result output by the distance sensor. The embodiment of the utility model provides a for two at least antenna module configuration SAR sensor detection path for electronic equipment possesses the ability that combines different detection path of SAR sensor and distance sensor to come to carry out comprehensive detection to the object for the distance of each position of electronic equipment, and the SAR scene is fallen in accurate discernment.

Description

Electronic device

Technical Field

The embodiment of the utility model provides a relate to electronic equipment technical field, especially, relate to electronic equipment.

Background

SAR (Specific Absorption Rate, also called Specific Absorption Rate or electromagnetic wave Absorption ratio) is an index related to radiation of electronic equipment such as a mobile phone to a human body, the size of SAR indicates the influence of electromagnetic radiation of the electronic equipment on human health, and the lower the SAR value, the less radiation is absorbed by the body. In the design of the electronic device antenna, the influence of electromagnetic radiation of the electronic device on the head and the body of a human is mainly concerned, and the SAR value is closely related to the radiation power, and the larger the radiation power is, the higher the SAR value is. However, in terms of The performance requirement of The antenna Over The Air (OTA) technology test, it is desirable that The higher The radiation power is, The better The radiation power is, and how to balance The OTA performance and The SAR value becomes a common problem in The industry at present.

In the face of the SAR certification requirement, the conventional solution is to load a specific absorption rate sensor (SAR-sensor) chip through a single antenna (usually a bottom main transmitting antenna), and trigger to reduce the radiation power by detecting the induced capacitance value between the antenna and the object, so as to reduce the SAR value.

However, the above conventional scheme often has a false trigger phenomenon in many scenarios, which results in a situation that the scenario that does not need to reduce the SAR value triggers the power reduction or the scenario that needs to reduce the SAR value does not successfully trigger the power reduction, and therefore, an improvement is needed.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide an electronic device, a radiation power control method, an apparatus, and a computer-readable storage medium capable of accurately identifying a scene in which a SAR value needs to be reduced.

The embodiment of the application provides an electronic equipment, which is characterized by comprising: a plurality of antenna assemblies, SAR sensors, range sensors, and a processor;

the SAR sensor is respectively connected with at least two antenna assemblies in the plurality of antenna assemblies through a plurality of detection channels;

the distance sensor is positioned on the front side and/or the back side of the electronic equipment;

the processor is respectively connected with the SAR sensor, the distance sensor and the antenna assemblies and used for adjusting the radiation power of the antenna assemblies according to a first detection result output by the SAR sensor and a second detection result output by the distance sensor.

In one embodiment, the SAR sensor comprises: at least one multi-channel SAR sensor, or at least two single-channel SAR sensors, or at least one multi-channel SAR sensor and at least one single-channel SAR sensor.

In one embodiment, the distance sensor is a proximity sensor P-sensor.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at the top of the electronic device.

In one embodiment, the plurality of antenna assemblies includes an antenna assembly supporting a fifth generation mobile communications 5G technology.

In one embodiment, the plurality of antenna assemblies further comprises an antenna assembly supporting WiFi technology for wireless fidelity communications.

In one embodiment, the plurality of antenna assemblies includes an antenna assembly connected to a double pole double throw switch.

In one embodiment, the at least two antenna assemblies include a first antenna assembly located at the top of the electronic device, a second antenna assembly located at the bottom of the electronic device, and a third antenna assembly located at the side of the electronic device.

In one embodiment, the at least two antenna assemblies further comprise a fourth antenna assembly located at a side of the electronic device, wherein a distance between the fourth antenna assembly and the third antenna assembly is greater than a preset distance threshold.

In one embodiment, the third antenna assembly is located near a top of the electronic device relative to the fourth antenna assembly, the first and third antenna assemblies are connected to a same multi-channel SAR sensor, and the second and fourth antenna assemblies are connected to a same multi-channel SAR sensor.

The electronic equipment provided by the embodiment of the application comprises a plurality of antenna assemblies, an SAR sensor, a distance sensor and a processor; the SAR sensor is respectively connected with at least two antenna assemblies in the plurality of antenna assemblies through a plurality of detection channels and can be used for detecting the distance of an object relative to the at least two antenna assemblies; the distance sensor is positioned on the front surface and/or the back surface of the electronic equipment and can be used for detecting the distance of an object relative to the distance sensor; the processor is respectively connected with the SAR sensor, the distance sensor and the antenna assemblies and used for adjusting the radiation power of the antenna assemblies according to the first detection result output by the SAR sensor and the second detection result output by the distance sensor. The embodiment of the utility model provides an through adopting above-mentioned technical scheme, for two at least antenna module configuration SAR sensor detection channel for electronic equipment possesses the ability that combines different detection channel of SAR sensor and distance sensor to come to carry out comprehensive detection to the object for the distance of each position of electronic equipment, and then whether accurate discernment current scene needs to reduce the SAR value, and then adjusts the radiant power of a plurality of antenna module, prevents to take place the erroneous judgement phenomenon, balances OTA performance and SAR value more rationally.

Drawings

FIG. 1 is a schematic diagram of an electronic device in one embodiment;

FIG. 2 is a schematic structural diagram of an electronic device in another embodiment;

FIG. 3 is a flow chart illustrating a method for controlling radiation power according to one embodiment;

FIG. 4 is a block diagram showing the structure of a radiation power control device according to an embodiment;

FIG. 5 is a diagram illustrating an internal structure of an electronic device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiment of the utility model provides an electronic equipment can be cell-phone and panel computer etc. need dispose the communication equipment of antenna. The electronic device includes a plurality of antenna assemblies, a SAR sensor (SAR-sensor), a distance sensor (P-sensor), and a processor, and may further include other components, which are not limited in particular.

The number of antenna assemblies in the electronic device and the position distribution of the antenna assemblies can be set according to actual requirements, and the plurality of antenna assemblies can comprise two antenna assemblies or more. The internal structure of the antenna assembly is not limited, and may include, for example, an antenna body and an antenna radio frequency transceiver.

The SAR sensor is respectively connected with at least two antenna assemblies in the plurality of antenna assemblies through a plurality of detection channels and can be used for detecting the distance of an object relative to the at least two antenna assemblies respectively. When the plurality of antenna assemblies are two antenna assemblies, the SAR sensor is connected to the two antenna assemblies through two detection channels, respectively. Optionally, the SAR sensor comprises at least one multi-channel SAR sensor, or at least two single-channel SAR sensors, or at least one multi-channel SAR sensor and at least one single-channel SAR sensor, where the channels are detection channels. That is to say, the embodiment of the utility model provides an integrated SAR-sensor chip in the electronic equipment can be single multichannel SAR-sensor chip, can also be a plurality of single channel SAR-sensor chips, can also be the combination of multichannel SAR-sensor chip and single channel SAR-sensor chip. Each detection channel of the SAR-sensor chip can be connected to a corresponding antenna component feed point, so that connection with the antenna component is realized. The capacitance value change on the antenna assembly can be detected through the detection channel so as to judge the distance between the object and the antenna assembly. Compared with the scheme that a single-channel SAR-sensor chip is adopted to detect a main transmitting antenna in the prior art, the distance of the object relative to each part of the electronic equipment can be judged more accurately by detecting more antennas, so that more scenes can be distinguished.

The distance sensor is located on the front side and/or the back side of the electronic device, that is, the distance sensor may be disposed on the front side of the electronic device, may be disposed on the back side of the electronic device, and may be disposed on the front side and the back side of the electronic device. The number, location, and type of distance sensors are not limited. The distance sensor can be used for detecting the distance of an object relative to the distance sensor, and the distances of the object relative to all parts of the electronic equipment can be judged more comprehensively by combining a plurality of detection channels of the SAR-sensor, so that the use scenes can be distinguished more accurately. Optionally, the distance sensor is a proximity sensor P-sensor, and the specific distance may be determined by using an infrared distance sensing value on the P-sensor, and the determination result is close or far. Alternatively, it can be multiplexed with existing P-sensors integrated on the front of most electronic devices.

The processor is respectively connected with the SAR sensor, the distance sensor and the antenna assemblies and used for adjusting the radiation power of the antenna assemblies according to a first detection result output by the SAR sensor and a second detection result output by the distance sensor. Illustratively, the first detection result includes at least two approach or departure determination results, and the second detection result includes one approach or departure determination result. The processor can accurately judge the current use scene by combining the first detection result and the second detection result, further determine the reasonable radiation power of the plurality of antenna assemblies, and adjust and control the radiation power of part of or all the antenna assemblies in the plurality of antenna assemblies. The specific adjustment mode is not limited, for example, the radiation power can be reduced by adjusting the radio frequency parameter configuration item, so as to achieve the purpose of reducing the SAR. In addition, if it is determined that the current scene does not require a reduction in radiated power, the plurality of antenna elements may be controlled to maintain the existing radiated power.

The embodiment of the utility model provides an electronic equipment for two at least antenna module configuration SAR sensor detection channel for electronic equipment possesses the ability that combines different detection channel of SAR sensor and distance sensor to come to carry out comprehensive detection to the object for the distance of each position of electronic equipment, and whether the accurate current scene of discerning needs to reduce the SAR value, and then adjusts the radiant power of a plurality of antenna module, prevents to take place the erroneous judgement phenomenon, balances OTA performance and SAR value more rationally.

For example, fig. 1 is a schematic structural diagram of an electronic device in one embodiment. The electronic device comprises two antenna components, a first antenna component 101 and a second antenna component 102; the SAR sensor 103 is a multi-channel SAR sensor, wherein 2 detection channels are respectively connected to the first antenna assembly 101 and the second antenna assembly 102; the distance sensor 104 may be a proximity sensor, i.e., a P-sensor, disposed on the front surface of the electronic device; and a processor (not shown in the figure) connected with the SAR sensor 103, the distance sensor 104, the first antenna assembly 101 and the second antenna assembly 102 respectively, and used for adjusting the radiation power of the first antenna assembly 101 and/or the second antenna assembly 102 according to the first detection result output by the SAR sensor 103 and the second detection result output by the distance sensor 104.

In some embodiments, at least one of the at least two antenna assemblies is a radiating antenna assembly located at the top of the electronic device. For example, the first antenna assembly 101 in fig. 1 may be a transmitting antenna and the second antenna assembly 102 may be a receiving antenna. In addition, with the appearance of the full-face screen of electronic equipment such as a mobile phone, the screen occupation ratio is larger and larger, the clearance left for the antenna is smaller and smaller, and in order to improve the performance of the antenna, a plurality of mobile phone antennas need to be designed at the top of the mobile phone. Especially, when the 5G comes, the 5GNR (New Radio, New broadcast) band needs to be made into 4 × 4MIMO (Multiple Input Multiple Output), at least 4 antennas need to be added to meet the design function requirement, and the antennas in the 5GNR band need to have a round-robin function. The traditional design scheme is that a transmitting antenna is arranged at the bottom of the mobile phone, and a receiving antenna is arranged at the top of the mobile phone, so that the design requirements can not be met completely, and the problem that a head SAR (head SAR) and a body SAR (body SAR) exceed standards can be caused by the inevitable need of arranging the transmitting antenna at the top of the mobile phone. The utility model discloses the scheme is applicable in the electronic equipment that needs dispose the emitting antenna subassembly at the top. By identifying the use scene more accurately, the problem of reducing the SAR value false triggering of the electronic equipment with the transmitting antenna assembly arranged at the top can be solved well, and the OTA performance and the SAR value are balanced more reasonably.

In some embodiments, the plurality of antenna assemblies includes antenna assemblies supporting 5G technology, which may be suitable for electronic devices supporting 5G.

In some embodiments, the plurality of antenna assemblies further comprises an antenna assembly supporting Wireless Fidelity (WiFi) technology. Of course, the electronic device may also include other antenna assemblies such as those supporting Global Positioning System (GPS) technology.

In some embodiments, the antenna elements include an antenna element connected to a Double Pole Double Throw (DPDT) switch, which may be suitable for electronic devices requiring switching between upper and lower DPDT antennas.

In some embodiments, the at least two antenna assemblies include a first antenna assembly located at the top of the electronic device, a second antenna assembly located at the bottom of the electronic device, and a third antenna assembly located at the side of the electronic device. Thus, the method can be better suitable for 5G equipment.

Further, the at least two antenna assemblies further include a fourth antenna assembly located on a side of the electronic device, where a distance between the fourth antenna assembly and the third antenna assembly is greater than a preset distance threshold. The advantage of this arrangement is that since the side of the electronic device is usually longer, when the two antenna assemblies on the side are farther away from each other, in order to more accurately detect the distances of the object relative to different parts of the electronic device, and thus obtain a more accurate use scenario, the detection channels need to be configured separately. The preset distance threshold may be set according to actual conditions, for example, may be a preset proportional value of the total length of the side edge, and the preset proportional value may also be freely set, for example, may be 0.5.

Further, the third antenna assembly is close to the top of the electronic device relative to the fourth antenna assembly, the first antenna assembly and the third antenna assembly are connected to the same multi-channel SAR sensor, and the second antenna assembly and the fourth antenna assembly are connected to the same multi-channel SAR sensor. The advantage of setting up like this lies in, can realize measuring channel's setting nearby, reduces measuring channel length, realizes measuring channel's overall arrangement more rationally.

For example, fig. 2 is a schematic structural diagram of an electronic device in another embodiment. The electronic device in fig. 2 may be a 5G handset. As shown in fig. 2, a total of 8 antenna components are configured, including ant0, ant1, ant2, ant3, ant4, ant5, ant6, and ant 7. A proximity sensor 201 is arranged on the front surface of the electronic device, and two SAR sensors, namely a first SAR sensor 202 and a second SAR sensor 203, are arranged. Because there are many 5G project antennas, ant0, ant1, ant4, ant5 and ant7 all act as transmitting antennas, which brings more variables to SAR testing, and there is a possibility that SAR values at the top, bottom, back and side surfaces exceed the standards. Specifically, ant0 can be configured as RX: L/MB, DRX: HB, N1: TRX, N41: RX1 mimo; ant1 can be configured as TRX N41/78/79, RX N1 mimo; ant2 may be configured as Wifi _2.4/5G (CH 1); ant3 may be configured as GPS L1, Wifi _2.4/5G (CH 0); ant4 can be configured as DRX L/MB, TRX HB, N1 DRX, N41 RX2 mimo, N78 TRX/RX 1mimo, N79 RX1 mimo; ant5 may be configured as N41/78/79 TRX/DRX; ant6 may be configured as GPS L5; ant7 can be configured as N78: TRX/RX2 mimo, N79: RX2 mimo, N1: DRX. It will be appreciated that there may be many antenna configurations for a 5G handset, and that the above configurations are merely illustrative. For the above configuration scheme, 2 multi-channel SAR sensors can be adopted to detect and determine capacitance change values of ant0, ant1, ant2, ant4, ant5 and ant7 respectively, and combine the determination of P sensor detection distance to distinguish possible use scenes, and then determine whether to call SAR NV reduction or not through the scenes (that is, determine whether to reduce radiation power by adjusting radio frequency parameter configuration items or not, thereby achieving the purpose of reducing SAR). The SAR sensor channels connected to each antenna are shown in table 1. Because ant4 and ant5 are close to each other and are both located at the top of the electronic device, one of the connection detection channels can be selected; ant2 is a WiFi antenna and can also be optionally connected to the detection channel.

TABLE 1 Table of connection relationship between detection channel and antenna

Fig. 3 is a schematic flowchart of a radiation power control method according to an embodiment, which is applied to an electronic device provided in an embodiment of the present invention and can be executed by a radiation power control apparatus, wherein the apparatus can be implemented by software and/or hardware and can be integrated in the electronic device. The method can comprise the following steps:

and 301, receiving a first detection result output by the SAR sensor and a second detection result output by the distance sensor under the condition that the electronic equipment is detected to be in a communication state.

For example, the detection of the communication state may be performed by a communication unit in the electronic device. The output of the SAR sensor can be capacitance induction value change data or a judgment result of approaching or departing, and each detection channel of the SAR sensor outputs a group of detection results. The distance sensor may be a proximity sensor, and may output infrared sensing value change data, or may output a determination result of proximity or distance, and when there are a plurality of distance sensors, each distance sensor outputs a set of detection results.

Step 302, determining a corresponding target scene according to the first detection result and the second detection result.

Illustratively, at least two detection channels of the SAR sensor are connected with the antenna assembly, so that the first detection result comprises at least two groups of detection results, the second detection result comprises at least one group of detection results, each group of detection results respectively represents the distance between an object and each part of the electronic equipment, and the distance between the object and each part of the electronic equipment can be obtained more accurately by integrating the multiple groups of detection results, so that the corresponding use scene, namely the target scene, can be determined accurately.

And 303, controlling the plurality of antenna assemblies to reduce the radiation power when the target scene is determined to meet the preset SAR power reduction condition.

For example, the usage scenarios may be classified according to the position distribution of the antenna assembly connected to the detection channel of the SAR sensor and the position distribution of the distance sensor, and it is determined which scenarios need SAR reduction, and these scenarios may be recorded as preset scenarios. When the target scene is matched with the preset scene, the preset SAR power reduction condition can be met, and then part of or all of the antenna assemblies are controlled to reduce the radiation power. Concrete reduction mode and reduction range etc. can set up according to actual demand, the embodiment of the utility model provides a do not restrict.

According to the radiation power control method provided by the embodiment of the application, under the condition that the electronic equipment is detected to be in a communication state, a first detection result output by the SAR sensor and a second detection result output by the distance sensor are received, a corresponding target scene is determined according to the first detection result and the second detection result, and when the target scene is determined to meet the preset SAR power reduction condition, the plurality of antenna assemblies are controlled to reduce the radiation power. Through the cooperation of two kinds of testing results, can accurately discern whether current scene needs to reduce the SAR value, and then adjust the radiation power of a plurality of antenna elements, prevent to take place the erroneous judgement phenomenon, balance OTA performance and SAR value more rationally.

In one embodiment, the first detection result comprises at least two approach or departure determination results, and the second detection result comprises one approach or departure determination result. Correspondingly, the determining the corresponding target scene according to the first detection result and the second detection result includes: and determining the corresponding target scene according to at least three approaching or departing judgment results. The SAR sensor and the proximity sensor directly output the proximity or the distance judgment result, so that the processor can conveniently and quickly determine the target scene according to the combined result, and the response speed is improved. The distance between the object and the corresponding antenna assembly or the corresponding distance sensor is greater than or equal to a second preset distance threshold, the first preset distance threshold and the second preset distance threshold may be equal to or unequal, and if the distance is not equal to the second preset distance threshold, the second preset distance threshold is greater than the first preset distance threshold.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at the top of the electronic device. The determining that the target scene meets a preset SAR power reduction condition comprises: when the target scene is determined to be a preset scene, determining that a preset SAR power reduction condition is met, wherein the preset scene comprises a Head SAR test scene in an OTA Head side (Beside Head, BH) test scene, a body SAR top test scene in a Free placement state, and a body SAR (body SAR) back and/or side test scene, and the preset scene does not comprise an OTA Head Hand (Beside Head and Hand, BHH) test scene and an OTA Free placement (FS) state test scene. The advantage of setting up like this lies in, can carry out more careful division to the test scenario in OTA test and SAR test's relevant test scenario, prevents to appear the condition that the test data is unusual, especially can solve the terminal product's that the transmitting antenna is located the top first SAR, Body SAR problem, can solve terminal product at the same time and in OTA BHH test the OTA data that SAR-sensor false triggering caused descend the problem unusually. In addition, it should be noted that, if the bottom of the electronic device is not provided with the transmitting antenna assembly, the preset scenario may not include a Hand-held OTA (Hand Left or Hand Right, HL/R) test scenario, so as to ensure that OTA test data in the scenario is not reduced.

The following description will be made in detail with reference to the electronic apparatus shown in fig. 1 and table 2.

Table 2 first look-up table for power backoff mechanism

Where CH1 denotes a bottom antenna detection channel, CH2 denotes a top antenna detection channel, the first antenna component 101 (top antenna) in fig. 1 is a transmitting antenna, and the second antenna component 102 (bottom antenna) is a receiving antenna.

In the communication state, the P-sensor detects the approaching state, the SAR-sensor CH1 detects the departing state, and the SAR sensor CH2 detects the approaching state, the scene is determined as a head SAR scene (OTA BH test scene), and the conduction fallback is triggered (namely, the radiation power is reduced) in the state to meet the head SAR requirement.

In the communication state, the P-sensor detects the approaching state, the SAR-sensor CH1 detects the approaching state, and the SAR sensor CH2 detects the approaching state, so that the scene is judged as an OTA BHH test scene, no SAR requirement exists, and the conduction rollback is not triggered in the state, thereby ensuring that the OTA BHH test data cannot be reduced.

In the communication state, the P-sensor detects the far state, the SAR-sensor CH1 detects the far state, and the SAR sensor CH2 detects the close state, the scene is determined as a Body SAR top test scene, and the conduction backspacing is triggered in the state to meet the head SAR requirement.

In the communication state, the P-sensor detects the far state, the SAR-sensor CH1 detects the far state, and the SAR sensor CH2 detects the far state, the scene is determined as an OTA FS test scene, the conduction backspacing is not triggered in the state, the scene has no SAR requirement, and OTA test data cannot be reduced.

In the communication state, when the P-sensor detects a far state, the SAR-sensor CH1 detects a near state, and the SAR sensor CH2 detects a near state, the scene is determined as a Body SAR (back and/or side) test scene, and in the state, conduction backspacing is triggered to meet the back requirement and the side requirement of the Body SAR.

In the communication state, the P-sensor detects the far state, the SAR-sensor CH1 detects the near state, and the SAR sensor CH2 detects the far state, the scene is determined as an OTA HL/R test scene, the conduction backspacing is not triggered in the state, the scene has no SAR requirement, and the OTA test data cannot be reduced.

It is thus clear that, through adopting the utility model discloses the scheme can be to the concrete test scene segmentation in OTA test and the SAR test, and then whether trigger the conduction more rationally and roll back. For example, if not adopt the utility model discloses the scheme, then can't distinguish the first SAR test scenario in OTA BHH test scenario and the other test scenario of OTA people head, just so can't the accurate determination whether trigger the conduction and roll back.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at the bottom of the electronic device. Correspondingly, the preset scene further includes: and the OTA holds a bottom SAR test scene in the test scene. Therefore, when the transmitting antenna is arranged at the bottom, the power consumption can be reduced by triggering in the bottom SAR test scene in the OTA hand-held test scene, and the problem of the bottom SAR is solved.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at a side of the electronic device. Correspondingly, the preset scene further includes: a back and/or side test scenario for a body SAR. Therefore, when the transmitting antenna is arranged on the side face, the power consumption can be reduced in a back and/or side face test scene of the body SAR in a triggering mode, and the back and/or side face SAR problem is solved.

The following description will be made in detail with reference to the electronic apparatus shown in fig. 2, tables 3 and 4.

TABLE 3 Power Back-off mechanism second look-up table

TABLE 4 third look-up table for power backoff mechanism

Because more transmitting antennas are added to the 5G mobile phone, a side SAR detection item needs to be added, and the SAR reduction scene is further subdivided. As in table 3, for head SAR and Body SAR, the top, back and bottom SAR issues need to be addressed primarily. Comparing table 2 and table 3 with fig. 1 and 2, it can be seen that the main difference is that CH2 is replaced with CH4 or CH 5. As shown in fig. 2, because ant4 and ant5 are close to each other, the detection results of CH4 and CH5 are generally consistent, and the detection result of either one may be regarded as the standard. In addition, for the P-sensor detecting the far state, the SAR-sensor CH0 detecting the near state and the SAR-sensor CH4 or CH5 detecting the far state, the scene is determined as the (OTA HL/R test scene) bottom SAR test scene; since ant0 is the transmitting antenna, triggering conducted backoff in this state needs to solve the bottom SAR problem, and OTA test data will be reduced. In order to solve the lateral SAR standard exceeding problem, as shown in Table 4, if a P-sensor detects a far state and a SAR-sensor CH1 or CH7 detects a near state, the scene is determined as a back and lateral SAR test scene, and conduction fallback is triggered in the state to solve the lateral and back SAR problems of ant1 and ant 7.

The above 5G mobile phone SAR reduction scheme basically includes the SAR reduction situation of each face of the mobile phone, and if the number of antennas is reduced, the scene definition can be properly adjusted, so that the fewer the scenes of power backoff are, the better the power backoff is, thus not only meeting the SAR value requirement, but also ensuring the OTA performance, and balancing the OTA performance and the SAR value more reasonably, so that the terminal user has better experience.

It should be understood that, although the steps in the flowchart of fig. 3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 3 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

Fig. 4 is a block diagram of a radiation power control device according to an embodiment, where the device is configured in an electronic apparatus provided in an embodiment of the present invention, including: a detection result receiving module 401, a target scene determining module 402, and a power reduction control module 403, wherein:

a detection result receiving module 401, configured to receive a first detection result output by a specific absorption rate SAR sensor and a second detection result output by the distance sensor;

a target scene determining module 402, configured to determine a corresponding target scene according to the first detection result and the second detection result;

a power reduction control module 403, configured to control the multiple antenna assemblies to reduce the radiation power when it is determined that the target scene meets a preset SAR power reduction condition.

In one embodiment, the first detection result comprises at least two approach or departure determination results, and the second detection result comprises one approach or departure determination result; correspondingly, the determining the corresponding target scene according to the first detection result and the second detection result includes: and determining the corresponding target scene according to at least three approaching or departing judgment results.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at the top of the electronic device; the determining that the target scene meets any preset SAR power reduction condition comprises: and when the target scene is determined to be a preset scene, determining that a preset SAR power reduction condition is met, wherein the preset scene comprises a head SAR test scene, a body SAR top test scene in a free-standing state and a body SAR back and/or side test scene in an OTA (over-the-air) human head side test scene, and does not comprise an OTA human head hand test scene and an OTA free-standing state test scene.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at the bottom of the electronic device; correspondingly, the preset scene further includes: and the OTA holds a bottom SAR test scene in the test scene.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at a side of the electronic device; correspondingly, the preset scene further includes: a back and/or side test scenario for a body SAR.

The embodiment of the utility model provides a radiation power controlling means, through the cooperation of two kinds of testing results, can accurately discern whether current scene needs to reduce the SAR value, and then adjust the radiation power of a plurality of antenna subassemblies, prevent to take place the erroneous judgement phenomenon, balance OTA performance and SAR value more rationally.

For specific limitations of the radiation power control device, reference may be made to the above limitations of the radiation power control method, which are not described herein again. The modules in the radiation power control device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or be independent from a processor of the electronic device, and can also be stored in a memory of the electronic device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, an electronic device is provided, and fig. 5 is an internal structure diagram of the electronic device in one embodiment, the electronic device may be a terminal such as a mobile phone, and the internal structure diagram may be as shown in fig. 5. The electronic device may include a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Furthermore, the electronic device comprises (not shown in the figure): a plurality of antenna assemblies, a specific absorption rate SAR sensor, and a distance sensor. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The Communication interface of the electronic device is used for performing wired or wireless Communication with an external terminal, and the wireless Communication can be realized through WIFI, an operator network, Near Field Communication (NFC for short) or other technologies. The computer program is executed by a processor to implement a radiation power control method. The display screen of the electronic equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the electronic equipment, an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will appreciate that the configuration shown in fig. 5 is a block diagram of only a portion of the configuration associated with the present application, and does not constitute a limitation on the electronic device to which the present application is applied, and a particular electronic device may include more or less components than those shown in the drawings, or may combine certain components, or have a different arrangement of components.

In one embodiment, the radiation power control apparatus provided in the present application may be implemented in the form of a computer program, and the computer program may be executed on an electronic device as shown in fig. 5. The memory of the electronic device may store various program modules constituting the radiation power control apparatus, such as a detection result receiving module 401, a target scene determining module 402, and a power reduction control module 403 shown in fig. 4. The respective program modules constitute computer programs that cause the processor to execute the steps in the radiation power control methods of the respective embodiments of the present application described in the present specification.

For example, the electronic device shown in fig. 5 may receive a first detection result output by the SAR sensor and a second detection result output by the distance sensor when detecting that the electronic device is in a communication state by executing a step by the detection result receiving module 401 in the radiation power control apparatus shown in fig. 4. The electronic device may determine, by the target scene determination module 402, a corresponding target scene according to the first detection result and the second detection result. The electronic device may control the plurality of antenna assemblies to reduce the radiated power when it is determined that the target scenario satisfies the preset SAR power reduction condition by the power reduction control module 403.

In one embodiment, there is provided an electronic device including: a plurality of antenna assemblies, a specific absorption rate, SAR, sensor, a distance sensor, a memory, and a processor, the SAR sensor being connected to at least two of the plurality of antenna assemblies via a plurality of detection channels, respectively, the distance sensor being located on a front and/or back side of the electronic device, the memory storing a computer program, the processor being connected to the SAR sensor, the distance sensor, and the plurality of antenna assemblies, respectively, the computer program when executed effecting the steps of: under the condition that the electronic equipment is detected to be in a communication state, receiving a first detection result output by an SAR sensor and a second detection result output by the distance sensor; determining a corresponding target scene according to the first detection result and the second detection result; and controlling the plurality of antenna assemblies to reduce the radiation power when the target scene is determined to meet the preset SAR power reduction condition.

In one embodiment, the first detection result comprises at least two approach or departure determinations and the second detection result comprises one approach or departure determination, the computer program when executed by the processor further performing the steps of: and determining the corresponding target scene according to at least three approaching or departing judgment results.

In one embodiment, at least one of the at least two antenna assemblies is a radiating antenna assembly located at the top of the electronic device; the determining that the target scene meets a preset SAR power reduction condition comprises: and when the target scene is determined to be a preset scene, determining that a preset SAR power reduction condition is met, wherein the preset scene comprises a head SAR test scene, a body SAR top test scene in a free-standing state and a body SAR back and/or side test scene in an OTA (over-the-air) human head side test scene, and does not comprise an OTA human head hand test scene and an OTA free-standing state test scene.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: under the condition that the electronic equipment is detected to be in a communication state, receiving a first detection result output by an SAR sensor and a second detection result output by the distance sensor; determining a corresponding target scene according to the first detection result and the second detection result; and controlling the plurality of antenna assemblies to reduce the radiation power when the target scene is determined to meet the preset SAR power reduction condition.

By adopting the technical scheme, whether the SAR value needs to be reduced in the current scene can be accurately identified through the matching of two detection results, the radiation power of the antenna assemblies is further adjusted, the misjudgment phenomenon is prevented, and the OTA performance and the SAR value are balanced more reasonably.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM is available in many forms, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), and the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electronic device, comprising: a plurality of antenna assemblies, a specific absorption rate SAR sensor, a distance sensor and a processor;

2. The device of claim 1, wherein the SAR sensor comprises: at least one multi-channel SAR sensor, or at least two single-channel SAR sensors, or at least one multi-channel SAR sensor and at least one single-channel SAR sensor.

3. The apparatus of claim 1, wherein the distance sensor is a proximity sensor P-sensor.

4. The device of claim 1, wherein at least one of the at least two antenna assemblies is a radiating antenna assembly located on a top portion of the electronic device.

5. The apparatus of claim 4, wherein the plurality of antenna assemblies comprises an antenna assembly supporting a fifth generation mobile communications 5G technology.

6. The apparatus of claim 5, wherein the plurality of antenna assemblies further comprises an antenna assembly supporting WiFi technology.

7. The apparatus of claim 4, wherein the plurality of antenna assemblies comprises an antenna assembly connected to a double pole double throw switch.

8. The device of claim 5, wherein the at least two antenna assemblies comprise a first antenna assembly located at a top of the electronic device, a second antenna assembly located at a bottom of the electronic device, and a third antenna assembly located at a side of the electronic device.

9. The device of claim 8, wherein the at least two antenna assemblies further comprise a fourth antenna assembly located to the side of the electronic device, wherein the fourth antenna assembly is located a distance from the third antenna assembly that is greater than a preset distance threshold.

10. The device of claim 9, wherein the third antenna assembly is located near a top of the electronic device relative to the fourth antenna assembly, wherein the first antenna assembly and the third antenna assembly are connected to a same multi-channel SAR sensor, and wherein the second antenna assembly and the fourth antenna assembly are connected to a same multi-channel SAR sensor.