Adjustment method of electromagnetic interference and related products
A technology of electromagnetic interference and adjustment method, applied in the field of electronics, can solve the problems of limited improvement effect, antenna interference, increased cost, etc., to achieve the effect of improving intelligence and stability, and eliminating interference
Active Publication Date: 2019-01-25
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology
[0002] In a multi-antenna scenario, when the Mobile Industry Processor Interface (MIPI) bus used to transmit data works at a fixed frequency, if its frequency division or multiplication frequency falls on the specific operating frequency of the modem, Can cause antenna interference, resulting in poor communication quality
[0003] At present, the interference to the modem can be improved through hardware upgrades, but it will increase the cost, and the improvement effect is limited. Adjusting the MIPI operating frequency of the display screen cannot ensure that the frequency division and multiplication frequency points do not fall on the operating frequency of the modem at all, which affects the display frame. Indicators such as rate and clarity may also have an impact
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[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0031] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method...
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Embodiments of the present application disclose a method for adjusting electromagnetic interference and related products, which are applied to an electronic device including a display screen and a modem. The method comprises the following steps: when uplink data transmission is detected, obtaining the working frequency of the Modem and the current first working frequency of the mobile processor interface MIPI of the display screen; determining that the electronic device is disturbed if a difference between the operating frequency of the modem and the first operating frequency is detected to bewithin a preset range; acquiring a first antenna currently enabled by the modem; querying a preset mapping relation set to obtain a first interference frequency list corresponding to the first antenna; determining a target antenna according to the first interference frequency list and the first operating frequency; Switching the first antenna to the target antenna. Thus, the transmitting antennais dynamically switched to reduce or eliminate the interference of the MIPI of the display screen on the uplink signal of the modem, so that the mobile phone maintains the best communication performance.
Description
technical field [0001] The present application relates to the field of electronic technology, in particular to an electromagnetic interference adjustment method and related products. Background technique [0002] In a multi-antenna scenario, when the Mobile Industry Processor Interface (MIPI) bus used to transmit data works at a fixed frequency, if its frequency division or multiplication frequency falls on the specific operating frequency of the modem, It will cause antenna interference, resulting in poor communication quality. [0003] At present, the interference to the modem can be improved through hardware upgrades, but it will increase the cost, and the improvement effect is limited. Adjusting the MIPI operating frequency of the display screen cannot ensure that the frequency division and multiplication frequency points do not fall on the operating frequency of the modem at all, which affects the display frame. Metrics such as rate and clarity may also have an impact....
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IPC IPC(8): H04M1/725H04B1/04
CPCH04B1/0475H04M1/72454
Inventor 唐凯谭正鹏陈运王立中杨海
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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