WO2018184492A1 - 提高wifi性能的方法及终端 - Google Patents

提高wifi性能的方法及终端 Download PDF

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Publication number
WO2018184492A1
WO2018184492A1 PCT/CN2018/080817 CN2018080817W WO2018184492A1 WO 2018184492 A1 WO2018184492 A1 WO 2018184492A1 CN 2018080817 W CN2018080817 W CN 2018080817W WO 2018184492 A1 WO2018184492 A1 WO 2018184492A1
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Prior art keywords
wifi
signal
hdmi
terminal
interfered
Prior art date
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PCT/CN2018/080817
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English (en)
French (fr)
Inventor
申喻
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18781891.9A priority Critical patent/EP3595202B1/en
Publication of WO2018184492A1 publication Critical patent/WO2018184492A1/zh
Priority to US16/592,083 priority patent/US11096072B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/20—Countermeasures against jamming
    • H04K3/22—Countermeasures against jamming including jamming detection and monitoring
    • H04K3/224—Countermeasures against jamming including jamming detection and monitoring with countermeasures at transmission and/or reception of the jammed signal, e.g. stopping operation of transmitter or receiver, nulling or enhancing transmitted power in direction of or at frequency of jammer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas
    • H04B7/0877—Hybrid systems, i.e. switching and combining using subgroups of receive antennas switching off a diversity branch, e.g. to save power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present application relates to the field of intelligent terminals, and in particular, to a method and a terminal for improving WIFI performance.
  • High Definition Multimedia Interface (English: High Definition Multimedia Interface, HDMI) has become the mainstream interface for HD video.
  • the set top box is connected to the television through the HDMI port to output the decoded high definition data to the television.
  • the set-top box is also equipped with wireless fidelity (English: WIreless-Fidelity, referred to as: WIFI) interface.
  • WIFI wireless fidelity
  • the frequency signal will fall in the wireless frequency band corresponding to 5G or 2.4G WIFI, which interferes with the WIFI performance, resulting in mosaic or carton affecting the user experience during the process of playing the video program.
  • the general solution for the video-type products of the set-top box when the HDMI signal and the WIFI signal appear to interfere with each other is to reduce the interference to the WIFI signal by adding a shield to the portion of the signal line of the HDMI.
  • Existing solutions increase hardware complexity, increase hardware cost of the product, and result in a decline in product competitiveness.
  • the embodiment of the invention provides a method and a terminal for improving the WIFI performance, which can reduce the interference of the HDMI signal on the WIFI signal and improve the WIFI performance without increasing the hardware complexity and the hardware cost.
  • an embodiment of the present invention provides a method for improving WIFI performance, where the method includes: determining, by a terminal, whether a currently working WIFI channel is interfered by an HDMI signal, and whether the strength of the received WIFI signal is less than or equal to a preset signal.
  • the strength threshold wherein the terminal is configured with a WIFI module and an HDMI port; if yes, the terminal controls the WIFI antenna that is most interfered by the HDMI signal to stop transmitting and receiving signals.
  • the terminal determines whether the currently working WIFI channel is interfered by the HDMI signal, and includes: the resolution of the video signal output by the terminal according to the currently working WIFI channel and the terminal's HDMI port. And multiplying the clock signal output by the HDMI port of the terminal to determine whether the currently working WIFI channel is interfered by the HDMI signal.
  • the terminal may determine whether the currently working WIFI channel is interfered by the HDMI signal according to the foregoing related parameters, and the operation is simple.
  • the currently working WIFI channel is determined by the terminal according to a beacon frame transmitted by the wireless access point.
  • the WIFI antenna that is most interfered by the HDMI signal is the antenna closest to the HDMI port of the terminal.
  • the distribution position of the WIFI antenna on the terminal it can be determined which antenna is most interfered by the HDMI signal, and the operation is simple.
  • the method further includes: determining, by the terminal, whether the currently working WIFI channel is interfered by the HDMI signal and the strength of the received WIFI signal. Whether it is less than or equal to the preset signal strength threshold; if the currently working WIFI channel is not interfered by the HDMI signal, or the received WIFI signal strength is greater than the preset signal strength threshold, the terminal control is interfered by the HDMI signal
  • the largest WIFI antenna starts to transmit and receive signals.
  • the WIFI antenna can be continuously opened to improve the user's experience of watching the video.
  • the embodiment of the present invention further provides a terminal, which implements the function of the terminal in the method for improving WIFI performance in the foregoing first aspect, and thus can also implement the benefit of the method for improving WIFI performance in the first aspect.
  • the function of the terminal may be implemented by hardware, or may be implemented by hardware corresponding software.
  • the hardware or software includes at least one module corresponding to the functions described above.
  • the terminal includes a processing unit.
  • the processing unit is configured to determine whether the currently working WIFI channel is interfered by the HDMI signal and the strength of the received WIFI signal is less than or equal to a preset signal strength threshold, where the terminal is configured with a WIFI module and an HDMI port; If yes, the processing unit is further configured to control the WIFI antenna that is most interfered by the HDMI signal to stop transmitting and receiving signals.
  • the purpose of reducing the interference of the HDMI signal to the WIFI signal can be achieved by turning off the specific antenna without increasing the hardware complexity and the hardware cost, and improving the WIFI performance.
  • the processing unit is configured to determine whether the currently working WIFI channel is interfered by the HDMI signal, including: determining, according to the currently working WIFI channel, a video signal output by the terminal's HDMI port. The rate and the multiplication of the clock signal output by the HDMI port of the terminal determine whether the currently operating WIFI channel is interfered by the HDMI signal.
  • the terminal may determine whether the currently working WIFI channel is interfered by the HDMI signal according to the foregoing related parameters, and the operation is simple.
  • the currently working WIFI channel is determined by the terminal according to a beacon frame transmitted by the wireless access point.
  • the WIFI antenna that is most interfered by the HDMI signal is the antenna closest to the HDMI port of the terminal.
  • the distribution position of the WIFI antenna on the terminal it can be determined which antenna is most interfered by the HDMI signal, and the operation is simple.
  • the processing unit is further configured to: determine whether the currently working WIFI channel is interfered by the HDMI signal and receive the WIFI. Whether the strength of the signal is less than or equal to the preset signal strength threshold; if the currently working WIFI channel is not interfered by the HDMI signal, or the strength of the received WIFI signal is greater than the preset signal strength threshold, the processing unit further The WIFI antenna for controlling the interference caused by the HDMI signal starts to transmit and receive signals.
  • the WIFI antenna when the terminal turns off the WIFI antenna that is most interfered by the HDMI signal, when the HDMI interference is removed, the WIFI antenna can be continuously opened to improve the user's experience of watching the video.
  • the embodiment of the present invention further provides a terminal, which implements the function of the terminal in the method for improving WIFI performance in the foregoing first aspect, and thus can also implement the method of improving the WIFI performance in the first aspect.
  • the function of the terminal may be implemented by hardware, or may be implemented by hardware corresponding software.
  • the hardware or software includes at least one module corresponding to the functions described above.
  • the terminal includes a processor that implements a function corresponding to a processing unit in the terminal of the third aspect.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the terminal, including a program designed to execute the first aspect described above for the terminal.
  • the terminal can dynamically adjust the antenna to enhance the anti-interference capability of the entire system.
  • the embodiment of the present invention does not need to additionally increase the shielding cover and other devices, reduces the hardware cost, and can improve the WIFI performance without increasing the hardware cost and the hardware complexity.
  • FIG. 1 is a schematic diagram of a scenario applicable to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of the set top box shown in FIG. 1;
  • FIG. 3 is a schematic diagram of data transmission of an HDMI port according to an embodiment of the present invention.
  • FIG. 4 is an internal layout diagram of a multi-antenna WIFI (4T4R) set-top box product according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart diagram of a method for improving WIFI performance according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of establishing a connection between a set top box and an AP according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of another set top box according to an embodiment of the present invention.
  • the terminal is a set-top box as an example.
  • the terminal may also be any other video terminal product configured with a WIFI module and an HDMI port.
  • FIG. 1 is a schematic diagram of a scenario applicable to an embodiment of the present invention.
  • the set-top box establishes a connection with the wireless access point (English: Access Point, AP for short) through the WIFI module. After the connection is successful, the set-top box can be connected to the network, and the WIFI signal is transmitted with the AP.
  • the set-top box transmits the HDMI signal to the smart TV through the HDMI port, thereby transmitting the audio and video data acquired from the AP to the smart TV for playing.
  • the wireless access point may be a router, and the smart TV may be an IPTV television.
  • the set top box 200 includes: a processor 201, a WIFI module 202, an HDMI port 203, a transceiver 2041, a transceiver 2042, a transceiver 2043, a transceiver 2044, a WIFI antenna 2051, a WIFI antenna 2052, a WIFI antenna 2053, a WIFI antenna 2054, and a memory 206. (One or more computer readable storage media).
  • the processor 201 can be integrated to include: one or more central processing units (English: Central Processing Unit, CPU for short), a clock module, and a power management module.
  • the clock module is primarily used to generate the clocks required for data transfer and timing control for the processor 201.
  • the power management module is mainly used to provide a stable, high-accuracy voltage for the processor 201, the WIFI module 202, and the like.
  • the WIFI module 202 is configured to perform data processing.
  • the data generated by the processor 201 may be subjected to transmission processing (eg, modulation, encoding, etc.), and the wireless signal (audio video data, etc.) sent by the AP received by the WIFI antenna may be received.
  • Processing eg demodulation, decoding, etc.
  • the WIFI module 202 can be a WIFI chip or the like.
  • the transceiver is configured to transmit the data processed by the WIFI module 202 to the WIFI antenna for transmission, and also to filter the wireless signal received by the WIFI antenna, and transmit the filtered data to the WIFI module 202.
  • the number of transceivers may be one or more. In the embodiment of the present invention, four transceivers are used as an example, and each transceiver corresponds to one WIFI antenna. In other implementations, a transceiver may be associated with multiple WIFI antennas, which is not specifically limited in the embodiment of the present invention.
  • the WIFI antenna is used to convert electromagnetic energy in a transmission line into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in a transmission line.
  • the number of WIFI antennas may be one or more. In the embodiment of the present invention, the number of WIFI antennas is four.
  • the set top box 200 establishes a connection with the AP through the WIFI antenna. After the connection is successful, the set top box 200 can be networked and wirelessly transmitted with the AP.
  • the set top box 200 is connected to the smart TV through the HDMI port 203, so that the audio and video data acquired from the AP is transmitted to the smart TV for playback.
  • Memory 206 is coupled to processor 201 for storing various software programs and/or sets of instructions.
  • memory 206 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the memory 206 can store a network communication program that can be used to communicate with one or more terminal devices, such as an AP.
  • the memory 206 can exist independently and be coupled to the processor 201 via a bus.
  • Memory 206 can also be integrated with processor 201.
  • the identifier of the WIFI antenna closest to the installation location of the HDMI port 203 may be stored in the memory 206.
  • the identifier of the WIFI antenna closest to the HDMI port 203 is pre-programmed in the memory 206.
  • the antenna closest to the HDMI port 203 is the antenna that is most interfered by the HDMI signal.
  • the HDMI port can transmit audio and video signals at the same time.
  • FIG. 3 it is a schematic diagram of HDMI signal transmission between a set top box and a smart TV.
  • the communication interface of the HDMI port consists of four sets of differential signals, one set of clock differential signals (TMDS Clock Channel) and three sets of data differential signals (TMDS Channel 0, TMDS Channel1 and TMDS Channel 2, respectively), in each clock cycle. Audio and video signals are transmitted through three sets of data differential signals.
  • TMDS Clock Channel clock differential signals
  • TMDS Channel 0, TMDS Channel1 and TMDS Channel 2 respectively
  • Audio and video signals are transmitted through three sets of data differential signals.
  • the clock signal of the HDMI port is also There are different clock rates. See Table 1 for the current mainstream video resolution and configuration of different video parameters and their corresponding differential clock rates and associated data rates.
  • the video stream is continuously improved, and the requirements for WIFI transmission capacity are getting higher and higher.
  • the WIFI specification has gradually transitioned from single antenna to dual antenna, multi-antenna. .
  • the multi-frequency signal of the HDMI clock signal will fall in the wireless frequency band corresponding to 5G or 2.4G WIFI, which interferes with WIFI performance.
  • 5G WIFI the interference relationship between the rate of the HDMI clock signal and each channel of the WIFI wireless communication band can be seen in Table 2.
  • the interference problem of the HDMI signal to the WIFI is mostly solved by shielding the interference source.
  • the interference of the WIFI signal is reduced by adding a shield cover in the part of the signal line of the HDMI.
  • conductive foam is used to increase contact and reduce noise radiation.
  • FIG 4 is a typical multi-antenna WIFI (4T4R) set-top box product internal layout diagram, in order to ensure the consistency of WIFI performance in all aspects (field map is round enough), WIFI performance 360 degrees without short board, 4 WIFI
  • the antennas are placed in the four corners of the set-top box, and the greater the isolation between the antennas, the better. In this case, it is inevitable that one antenna is closer to the HDMI port, which is subject to interference and affects the overall performance of the WIFI. This antenna can be judged by the test tool to test the noise value received by each antenna. In Figure 4, the WIFI antenna 4 is closest to the HDMI port and is therefore subject to the greatest interference.
  • the interference scene video resolution and WIFI channel
  • the interfered object WIFI antenna
  • the interference scene can be judged by software, and the antenna with the greatest influence is dynamically turned off, thereby That is to say, without increasing the hardware cost, the interference of the HDMI signal to the WIFI signal can be reduced, and the WIFI performance can be improved, and the entire avoidance of interference switching is performed by the software background without affecting the user experience.
  • the method includes the following steps.
  • step S501 The set-top box determines whether the currently working WIFI channel is interfered by the HDMI signal, and the strength of the received WIFI signal is less than or equal to the preset signal strength threshold. If the determined result is yes, step S502 is performed, otherwise, the execution is continued. step.
  • the set top box is configured with a WIFI module and an HDMI port.
  • the set top box establishes a connection with the AP.
  • FIG. 6 is a schematic diagram of a process in which the set top box establishes a connection with the AP.
  • the process includes the following steps.
  • Step 1 The Beacon frame is broadcasted by the AP periodically.
  • the Beacon frame is a WIFI management frame.
  • the Beacon frame contains the channel information of the AP.
  • the set-top box receives the Beacon frame broadcast by the AP.
  • Step 2 The set top box sends a probe request frame to the AP.
  • Step 3 The AP sends a probe response frame to the set top box.
  • Step 4 If authentication is required, the AP can authenticate the set top box. If the certification is passed, continue the following process.
  • the set-top box After receiving the Beacon frame, the set-top box analyzes the Beacon frame and extracts the currently working WIFI channel information from the Beacon frame. For example, the set-top box extracts the currently working WIFI channel from the Beacon frame as the channel 40.
  • the set-top box will list the currently working WIFI channel and the pre-stored WIFI channel that will be interfered by the HDMI signal in the set-top box (a list of 5G WIFI channels that will be interfered by the HDMI signal can be seen in Table 2, and the 2.4G WIFI channel that is interfered by the HDMI signal The list is the same, not repeated here, for comparison, to determine whether the currently working WIFI channel is interfered by the HDMI signal.
  • the set-top box can determine that the frequency of the HDMI clock signal falls within 40 channels of the WIFI 5G band by querying the above list.
  • the WIFI channel currently in operation of the set top box is also 40 channels. Therefore, it can be determined that the currently working WIFI channel is interfered by the HDMI signal.
  • the set top box In addition to detecting whether the currently working WIFI channel is interfered by the HDMI signal, the set top box also needs to detect whether the signal strength of the received AP signal is less than or equal to a preset signal strength threshold.
  • the signal strength may be received signal strength (English: Received Signal Strength Indication, referred to as: RSSI).
  • RSSI Received Signal Strength Indication
  • the preset signal strength threshold may be -65 dbm, and may of course be other values, which are not specifically limited in the embodiment of the present invention.
  • the set-top box determines that the above two conditions are satisfied at the same time, it is considered that the WIFI signal of the set-top box is interfered by the HDMI signal, and the WIFI antenna with the largest interference needs to be turned off, thereby reducing interference.
  • Turning off the WIFI antenna means controlling the antenna to stop transmitting and receiving WIFI signals, and the WIFI antenna no longer performs signal transmission and reception. For example, referring to FIG. 3, when the set top box determines that both of the above conditions are satisfied, the set top box switches from the 4-antenna transmission/reception mode to the 3-antenna transmission/reception mode, that is, the WIFI antenna 4 closest to the HDMI port is turned off.
  • the set-top box If one or both of the above two conditions are not met, the set-top box considers that the interference is extremely weak and does not affect the user experience, and does not need to turn off any antennas. For example, referring to FIG. 3, the set top box does not need to turn off any antennas when it is determined that only one of the above two conditions is satisfied, and the set top box continues to maintain the 4 antenna transmission and reception mode.
  • S502 The set top box controls the WIFI antenna that is most interfered by the HDMI signal to stop transmitting and receiving signals.
  • the WIFI antenna closest to the HDMI port is the antenna that is most interfered by the HDMI signal.
  • the distance that is, the WIFI antenna closest to the HDMI port is the antenna that is most interfered by the HDMI signal.
  • the size of the HDMI interference signal received by each antenna can be separately detected, and the antenna with the largest interference signal is the antenna that is most interfered by the HDMI signal.
  • the set top box closes the receiving of the antenna closest to the HDMI port by writing the control register of the relevant receiving module in the WIFI module, that is, the noise data received by the antenna is discarded, and only the other antennas are read.
  • the valid signal received artificially improves the signal-to-noise ratio, which greatly improves the WIFI performance.
  • the two conditions may be continuously detected every preset time period. If the above two conditions are still met, the set-top box continues to maintain the 3-antenna transceiver mode. . If one of the above two conditions is not satisfied or both are not satisfied, the set top box controls the closed WIFI antenna to work again, and continues to implement the 4-antenna transmission and reception mode.
  • the preset time period may be 5 minutes, 10 minutes, and may be other values, which are not specifically limited in the embodiment of the present invention.
  • the set top box can dynamically adjust the antenna to enhance the anti-interference ability of the entire system.
  • the embodiment of the present invention does not need to additionally increase the shielding cover and other devices, reduces the hardware cost, and can improve the WIFI performance without increasing the hardware cost and the hardware complexity.
  • the embodiment of the present invention does not need to increase the size of the set top box, which reduces the hardware cost, and conforms to the technical trend of miniaturization of the box type terminal device, and improves the product.
  • Comprehensive Competitiveness is a
  • the WIFI signal is affected by the HDMI signal problem, and the interference problem can be solved by the embodiment of the present invention.
  • the operation software of the embodiment of the present invention is performed in the background, and the user experience is not affected.
  • the effect is as follows: In the case of HDMI interference, the throughput data of 4 antennas is 25-40Mbps, and the antenna that affects the closest to the HDMI port is turned off, and after 3 antennas, WIFI throughput The data is upgraded to 71-136Mbps, and the performance is greatly improved, enough to support 4K UHD video stream.
  • WIFI frequency bands due to the wide range of WIFI frequency bands, covering 2.4G frequency band (2400Mhz-2483.5Mhz) and 5G frequency band (5170Mhz-5835Mhz), in addition to HDMI signal will cause interference to WIFI signal, other interfaces and devices such as universal serial Interface (English: Universal Serial Bus, USB: 3.0), Bluetooth, Long Term Evolution (LTE), etc. may interfere with WIFI.
  • the solution described in the embodiment of the present invention can also be used.
  • the terminal identifies the interference scenario, dynamically adjusts the WIFI antenna with the greatest impact to avoid interference, and improves the WIFI performance and user experience.
  • FIG. 7 is a schematic diagram showing the structure of a set-top box, a wireless access point, and a smart television provided by an embodiment of the present invention, and a communication system composed of the three.
  • a WIFI connection between the set top box 700 and the wireless access point 800, which can implement WIFI data communication between the two.
  • the set top box 700 may include: a processing unit 701, a WIFI communication module 702, and an HDMI communication module 703, where:
  • the WIFI communication module 702 is configured to perform WIFI signal transmission with the wireless access point 800;
  • the HDMI communication module 703 is configured to perform HDMI signal transmission with the smart TV 900;
  • the processing unit 701 is configured to determine whether the WIFI channel that the current WIFI communication module 702 operates is interfered by the HDMI signal, and whether the strength of the received WIFI signal is less than or equal to a preset signal strength threshold, where the set top box is configured with a WIFI module and HDMI. port;
  • the processing unit 701 is further configured to control the WIFI antenna that is most interfered by the HDMI signal to stop transmitting and receiving signals.
  • the processing unit 701 is configured to determine whether the currently working WIFI channel is interfered by the HDMI signal, including:
  • the currently working WIFI channel is determined by the set top box according to a beacon frame sent by the wireless access point.
  • the WIFI antenna that is most interfered by the HDMI signal is an antenna that is closest to the HDMI port of the set top box.
  • the processing unit 701 controls the WIFI antenna that is most interfered by the HDMI signal to stop transmitting and receiving signals, the processing unit 701 is further configured to:
  • the processing unit is further configured to control the WIFI antenna that is most interfered by the HDMI signal to start transmitting and receiving. signal.
  • the function of the processor 701 in the embodiment of the present invention is similar to that of the processor 201 in the embodiment shown in FIG. 2.
  • the function of the WIFI module 702 is similar to the WIFI module 202 in the embodiment shown in FIG. 2, and the HDMI module 703 and FIG.
  • the HDMI port 203 in the illustrated embodiment is similar.
  • the embodiment of the present invention can dynamically adjust the antenna to enhance the anti-interference capability of the entire system.
  • the embodiment of the present invention does not need to additionally increase the shielding cover and other devices, reduces the hardware cost, and can improve the WIFI performance without increasing the hardware cost and the hardware complexity.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明实施例公开了一种提高WIFI性能的方法及终端，该方法包括：终端确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于预设信号强度阈值，其中，所述终端配置有WIFI模块和HDMI端口；若是，所述终端控制受HDMI信号干扰最大的WIFI天线停止收发信号。采用本发明实施例，可以在不增加硬件复杂度与硬件成本的基础上，降低HDMI信号对WIFI信号的干扰，提高WIFI性能。

Description

提高WIFI性能的方法及终端
本申请要求于2017年4月7日提交中国专利局、申请号为201710224641.9、发明名称为“提高WIFI性能的方法及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及智能终端领域，尤其涉及一种提高WIFI性能的方法及终端。
背景技术
随着机顶盒产品逐步进入4K超高清视频(英文：4K Ultra High Definition，简称：4K UHD)时代，高清晰度多媒体接口(英文：High Definition Multimedia Interface，简称：HDMI)已经成为高清视频的主流接口。机顶盒通过HDMI端口与电视机相连，以将解码后的高清数据输出给电视机。随着电视和网络的发展，机顶盒也配置了无线保真(英文：WIreless-Fidelity，简称：WIFI)接口，在实际的使用过程中，当高清视频数据通过HDMI端口进行传输时HDMI时钟信号的倍频信号会落在5G或者2.4G WIFI对应的无线频带中，干扰WIFI性能，导致进行视频节目播放的过程中出现马赛克或者卡顿影响用户体验。目前针对机顶盒的视频类的产品当HDMI的信号和WIFI信号出现相互干扰的情况下的通常的解决方案是：通过在HDMI的信号线的部分来增加屏蔽罩的方式来减少对WIFI信号的干扰。现有的解决方案会增加硬件复杂度，提高产品的硬件成本，造成产品竞争力的下降。
发明内容
本发明实施例提供了一种提高WIFI性能的方法及终端，可以在不增加硬件复杂度与硬件成本的基础上，降低HDMI信号对WIFI信号的干扰，提高WIFI性能。
本发明实施例具体可以通过如下技术方案实现：
第一方面，本发明实施例提供了一种提高WIFI性能的方法，该方法包括：终端确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于预设信号强度阈值，其中，所述终端配置有WIFI模块和HDMI端口；若是，所述终端控制受HDMI信号干扰最大的WIFI天线停止收发信号。实施本发明实施例，可以在不增加硬件复杂度与硬件成本的基础上，通过关闭特定天线来达到降低HDMI信号对WIFI信号的干扰的目的，提高WIFI性能。
在一个可能的设计中，所述终端确定当前工作的WIFI信道是否受到HDMI信号的干扰，包括：所述终端根据所述当前工作的WIFI信道、所述终端的HDMI端口输出的视频信号的分辨率以及所述终端的HDMI端口输出的时钟信号的倍频确定所述当前工作的WIFI信道是否受到HDMI信号的干扰。本发明实施例中，终端可以根据上述相关的参数来确定当前工作的WIFI信道是否受到HDMI信号的干扰，操作简便。
在一个可能的设计中，所述当前工作的WIFI信道为所述终端根据无线接入点发送的信标帧确定的。
在一个可能的设计中，所述受HDMI信号干扰最大的WIFI天线为距离所述终端的HDMI端口最近的天线。本发明实施例中，根据WIFI天线在终端上的分布位置就可以确定出哪根天线受HDMI信号干扰最大，操作简便。
在一个可能的设计中，所述终端控制受HDMI信号干扰最大的WIFI天线停止收发信号之后，还包括：所述终端确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于所述预设信号强度阈值；若当前工作的WIFI信道未受到HDMI信号的干扰，或者接收到的WIFI信号的强度大于所述预设信号强度阈值，所述终端控制受HDMI信号干扰最大的所述WIFI天线启动收发信号。本发明实施例中，当终端关闭了受HDMI信号干扰最大的WIFI天线后，当HDMI干扰解除后，还可以继续打开该WIFI天线，提高用户观看视频的体验。
第二方面，本发明实施例还提供了一种终端，该终端实现上述第一方面的提高WIFI性能的方法中终端的功能，因此也能实现第一方面的提高WIFI性能的方法所具备的有益效果。其中，该终端的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括至少一个与上述功能相对应的模块。
在一个可能的设计中，该终端包括处理单元。所述处理单元，用于确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于预设信号强度阈值，其中，所述终端配置有WIFI模块和HDMI端口；若是，则所述处理单元还用于控制受HDMI信号干扰最大的WIFI天线停止收发信号。实施本发明实施例，可以在不增加硬件复杂度与硬件成本的基础上，通过关闭特定天线来达到降低HDMI信号对WIFI信号的干扰的目的，提高WIFI性能。
在一个可能的设计中，所述处理单元，用于确定当前工作的WIFI信道是否受到HDMI信号的干扰，包括：根据所述当前工作的WIFI信道、所述终端的HDMI端口输出的视频信号的分辨率以及所述终端的HDMI端口输出的时钟信号的倍频确定所述当前工作的WIFI信道是否受到HDMI信号的干扰。本发明实施例中，终端可以根据上述相关的参数来确定当前工作的WIFI信道是否受到HDMI信号的干扰，操作简便。
在一个可能的设计中，所述当前工作的WIFI信道为所述终端根据无线接入点发送的信标帧确定的。
在一个可能的设计中，所述受HDMI信号干扰最大的WIFI天线为距离所述终端的HDMI端口最近的天线。本发明实施例中，根据WIFI天线在终端上的分布位置就可以确定出哪根天线受HDMI信号干扰最大，操作简便。
在一个可能的设计中，所述处理单元控制受HDMI信号干扰最大的WIFI天线停止收发信号之后，所述处理单元还用于：确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于所述预设信号强度阈值；若当前工作的WIFI信道未受到HDMI信号的干扰，或者接收到的WIFI信号的强度大于所述预设信号强度阈值，所述处理单元还用于控制受HDMI信号干扰最大的所述WIFI天线启动收发信号。本发明实施例中，当终端关闭了受HDMI信号干扰最大的WIFI天线后，当HDMI干扰解除后，还可 以继续打开该WIFI天线，提高用户观看视频的体验。
第三方面，本发明实施例还提供了一种终端，该终端实现上述第一方面的提高WIFI性能的方法中终端的功能，因此也能实现第一方面的提高WIFI性能的方法所具备的有益效果。其中，该终端的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括至少一个与上述功能相对应的模块。该终端包括处理器，实现上述第三方面的终端中的处理单元对应的功能。
第四方面，本发明实施例提供一种计算机存储介质，用于储存为上述终端所用的计算机软件指令，其包含用于执行上述第一方面为所述终端所设计的程序。
实施本发明方法实施例，终端可以动态调整天线，增强整个系统的抗干扰能力。相对传统的硬件屏蔽方式，本发明实施例不需要额外增加屏蔽罩和其他器件，降低了硬件成本，在不增加硬件成本和硬件复杂度的基础上，可以提高WIFI性能。
附图说明
图1是本发明实施例适用的一种场景示意图；
图2是是图1所示机顶盒的结构示意图；
图3是本发明实施例提供的HDMI端口的数据传输示意图；
图4是本发明实施例提供的多天线WIFI(4T4R)的机顶盒产品的内部布局图；
图5是本发明实施例提供的提高WIFI性能的方法的流程示意图；
图6是本发明实施例提供的机顶盒与AP建立连接的流程示意图；
图7是本发明实施例提供的另一种机顶盒的结构示意图。
具体实施方式
需要说明的是，本发明各实施例中，均以终端为机顶盒为例进行说明，在其他可实现的方式中，终端还可以是其他任何配置有WIFI模块和HDMI端口的视频终端产品。
请参见图1，是本发明实施例适用的一种场景示意图。在图1中，机顶盒通过WIFI模块与无线接入点(英文：Access Point，简称：AP)建立连接，连接成功后机顶盒即可实现联网，与AP进行WIFI信号的传输。机顶盒通过HDMI端口与智能电视进行HDMI信号的传输，从而将从AP获取的音视频数据发送给智能电视进行播放。其中，无线接入点可以是路由器，智能电视可以是IPTV电视。
请参见图2，是图1所示机顶盒的结构示意图。机顶盒200包括：处理器201、WIFI模块202、HDMI端口203、收发器2041、收发器2042、收发器2043、收发器2044、WIFI天线2051、WIFI天线2052、WIFI天线2053、WIFI天线2054和存储器206(一个或多个计算机可读存储介质)。
处理器201可集成包括：一个或多个中央处理器(英文：Central Processing Unit，简称：CPU)、时钟模块以及电源管理模块。所述时钟模块主要用于为处理器201产生数据传输和时序控制所需要的时钟。所述电源管理模块主要用于为处理器201、WIFI模块202等提供稳定的、高精确度的电压。
WIFI模块202用于进行数据处理，例如可以对处理器201生成的数据进行发射处理(例 如调制、编码等)，还可以对WIFI天线接收到的AP发送的无线信号(音视频数据等)进行接收处理(例如解调、解码等)。具体实现中，WIFI模块202可以是WIFI芯片等。
收发器用于将WIFI模块202处理后的数据传输给WIFI天线进行发射，还用于将WIFI天线接收到的无线信号进行滤波，并将滤波后得到的数据传输给WIFI模块202。具体实现中，收发器的数量可以是一个或多个，本发明实施例中以收发器的数量为4个为例进行说明，且每个收发器对应一根WIFI天线。在其他可实现的方式中，还可以一个收发器对应多根WIFI天线，本发明实施例不作具体限定。
WIFI天线用于将传输线中的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。具体实现中，WIFI天线的数量可以是一个或多个，本发明实施例中以WIFI天线的数量为4个为例进行说明。机顶盒200通过WIFI天线与AP建立连接，连接成功后机顶盒200即可实现联网，与AP进行无线数据传输。
机顶盒200通过HDMI端口203与智能电视连接，从而将从AP获取的音视频数据发送给智能电视进行播放。
存储器206与处理器201耦合，用于存储各种软件程序和/或多组指令。具体实现中，存储器206可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器206可以存储网络通信程序，该网络通信程序可用于与一个或多个终端设备，例如AP，进行通信。存储器206可以是独立存在，通过总线与处理器201相连接。存储器206也可以和处理器201集成在一起。在本发明实施例中，存储器206中可以存储有与HDMI端口203的安装位置距离最近的WIFI天线的标识，这里，距离HDMI端口203最近的WIFI天线的标识是预先烧录在存储器206中的。距离HDMI端口203最近的天线是受HDMI信号干扰最大的天线。
需要说明的是，HDMI端口可同时传送音视频信号。参见图3，是机顶盒与智能电视间HDMI信号传输的示意图。HDMI端口的通信接口由四组差分信号组成，其中一组时钟差分信号(TMDS Clock Channel)和三组数据差分信号(分别为TMDS Channel 0、TMDS Channel1和TMDS Channel 2)，在每个时钟周期内通过三组数据差分信号进行音视频信号的传输，同时由于视频分辨率的不同，色彩深度的不同，以及色彩排列方式的不同会产生不同的视频数据的传输速率，同时HDMI端口的时钟信号也会有不同的时钟速率。参见表1，为目前主流的视频分辨率和不同的视频参数的配置与其对应的差分时钟的速率和相关的数据速率。
表1
Figure PCTCN2018080817-appb-000001
Figure PCTCN2018080817-appb-000002
由表1可知，针对不同的视频分辨率，HDMI端口对应数据通道的数据传输速率和时钟信号的时钟频率都会有不同的频率值。
随着视频分辨率从标清、高清再到如今的4K UHD超高清，视频码流不断提升，对WIFI传输能力的要求也越来越高，WIFI规格从单天线已逐步过渡到双天线，多天线。在实际的使用过程中，当高清视频数据通过HDMI端口进行传输时HDMI时钟信号的倍频信号会落在5G或者2.4G WIFI对应的无线频带中，干扰WIFI性能。以5G WIFI为例进行说明，对于HDMI的时钟信号的速率与WIFI无线通信频带的各个信道之间的干扰关系，可以参见表2所示。
表2
Figure PCTCN2018080817-appb-000003
由表2可知，HDMI信号在不同的分辨率的情况下，时钟信号的倍频会对5G的WIFI频带中的无线信道产生影响，如表2所示，当HDMI端口输出720P_60HZ_8bit的信号时HDMI时钟信号的70倍频的频率就会落在WIFI 5G频带的40信道内，在这种情况下，如果我们机顶盒产品在使用40信道与AP进行数据传输并且进行视频播放时，无线传输就会受到很大的影响造成视频播放出现问题。
目前针对HDMI信号对WIFI的干扰问题，大多通过屏蔽干扰源的方式来解决，例如，通过在HDMI的信号线的部分来增加屏蔽罩的方式来减少对WIFI信号的干扰。或者，使用导电泡棉增加接触性，减少噪声辐射。这些方法首先会增加硬件复杂度，增加产品的生产成本和物料成本。本发明实施例基于HDMI对WIFI干扰的可判断性以及哪个WIFI天线受干扰影响最大，通过软件判断是否存在HDMI信号对WIFI信号造成干扰，若有干扰则关闭受影响最大的天线(没有干扰再打开此天线)，从而达到消除HDMI对WIFI的干扰，提升WIFI吞吐量的目的。如图4是一个典型的多天线WIFI(4T4R)的机顶盒产品的内部布局图，为了确保WIFI性能在各个方面的一致性(场型图足够圆)，WIFI性能360度无短板，4个WIFI天线会布置在机顶盒的四个角落，天线之间的隔离越大越好。这样的话，不可避免的有1个天线距离HDMI端口较近，受到干扰大，影响WIFI整体性能。这根天线完全可以通过测试工具测试各个天线接收到的噪声值判断出来。在图4中，WIFI天线4距离HDMI端口最近，因此也受干扰最大。
在本发明实施例中，干扰场景(视频分辨率和WIFI信道)可判断，受干扰的对象(WIFI天线)也可判断，这样就可以通过软件来判断干扰场景，动态关闭影响最大的天线，从而即不增加硬件成本，又能降低HDMI信号对WIFI信号的干扰，提高WIFI性能，而且整个避开干扰的切换由软件后台执行，不影响用户体验。
基于上述图1所示的场景架构，结合图5来说明本发明实施例提供的提高WIFI性能的方法。如图5所示，该方法包括如下步骤。
S501：机顶盒确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于预设信号强度阈值，若确定的结果均为是，执行步骤S502，否则，继续执行本步骤。
本发明实施例中，机顶盒同时配置有WIFI模块和HDMI端口，首先机顶盒与AP建立连接，具体的，参见图6，是机顶盒与AP建立连接的过程示意图。该过程包括如下步骤。步骤1：AP周期性的广播信标(Beacon)帧(Beacon帧为WIFI管理帧,Beacon帧内部包含了AP的信道信息)，机顶盒接收AP广播的Beacon帧。步骤2：机顶盒向AP发送探测请求帧。步骤3：AP向机顶盒发送探测响应帧。步骤4：如果需要认证，AP可以对机顶盒进行认证。若认证通过继续以下流程。步骤5：机顶盒向AP发送关联请求，AP与机顶盒完成连接。至此，机顶盒与AP可以相互通信。该过程为现有技术，不作赘述。
机顶盒在接收到Beacon帧之后会针对Beacon帧进行分析，从Beacon帧中提取出当前正在工作的WIFI信道信息，例如，机顶盒从Beacon帧中提取出当前工作的WIFI信道 为信道40。机顶盒将当前工作的WIFI信道与机顶盒中预存的会受到HDMI信号干扰的WIFI信道的列表(会受到HDMI信号干扰的5G WIFI信道的列表可参见表2，会受到HDMI信号干扰的2.4G WIFI信道的列表同理，此处不再赘述)进行对比，从而确定当前工作的WIFI信道是否受到HDMI信号的干扰。例如，该机顶盒的HDMI端口输出分辨率为720P的信号且HDMI时钟信号的倍频为70倍频时，机顶盒通过查询上述列表即可确定HDMI时钟信号的频率会落在WIFI 5G频带的40信道内，而机顶盒当前工作的WIFI信道刚好也是40信道，因此，可确定当前工作的WIFI信道会受到HDMI信号的干扰。
机顶盒除了需要检测当前工作的WIFI信道是否受到HDMI信号的干扰以外，还需要检测接收到的AP的信号的信号强度是否小于或等于预设的信号强度阈值。其中，信号强度可以是接收信号强度(英文：Received Signal Strength Indication，简称：RSSI)。这里，预设的信号强度阈值可以是-65dbm，当然也可以是其他值，本发明实施例不作具体限定。
当机顶盒确定上述两个条件同时满足时，则认为机顶盒的WIFI信号会受到HDMI信号的干扰，需要关闭受干扰最大的WIFI天线，从而降低干扰。关闭WIFI天线是指控制该天线停止收发WIFI信号，该WIFI天线不再进行信号收发。例如，参见图3，机顶盒在确定出上述两个条件同时满足时，从4天线收发模式切换为3天线收发模式，即关闭距离HDMI端口最近的WIFI天线4。若上述两个条件有一个或两个不满足，则机顶盒认为干扰极弱不会影响用户体验，不需要关闭任何的天线。例如，参见图3，机顶盒在确定出上述两个条件只有一个满足时，不需要关闭任何天线，机顶盒继续保持4天线收发模式。
S502：机顶盒控制受HDMI信号干扰最大的WIFI天线停止收发信号。
本发明实施例中，可以通过距离来确定哪个WIFI天线是受HDMI信号干扰最大的天线，也即是说，距离HDMI端口最近的WIFI天线为受HDMI信号干扰最大的天线。当然，还可以有其他方式确定哪个WIFI天线是受HDMI信号干扰最大的天线，本发明实施例不作具体限定。例如，可以分别检测每根天线接收的HDMI干扰信号的大小，干扰信号最大的天线为受HDMI信号干扰最大的天线。机顶盒在确定上述两个条件同时满足时，通过写WIFI模块中的相关接收模块的控制寄存器，关闭距离HDMI端口最近的天线的接收，即把该天线收到的噪声数据丢掉，仅读取其他天线接收到的有效信号，人为提高了信噪比，从而大幅提升了WIFI性能。
可选的，当机顶盒由4天线收发模式切换为3天线收发模式后，还可以每隔预设时间段继续检测上述两个条件，若上述两个条件依然满足，则机顶盒继续保持3天线收发模式。若上述两个条件有一个不满足或者两个都不满足，则机顶盒控制被关闭的WIFI天线重新工作，继续实行4天线收发模式。这里，预设时间段可以是5分钟、10分钟，还可以是其他值，本发明实施例不作具体限定。
可选的，若机顶盒关机重启，或者断开WIFI网络连接后重新连接，则会重复图5所示的整个流程，确保用户体验最佳。
通过本发明实施例，机顶盒可以动态调整天线，增强整个系统的抗干扰能力。相对传统的硬件屏蔽方式，本发明实施例不需要额外增加屏蔽罩和其他器件，降低了硬件成本，在不增加硬件成本和硬件复杂度的基础上，可以提高WIFI性能。相对于传统的让天线远 离HDMI信号走线和连接器的方式，本发明实施例不需要额外加大机顶盒尺寸，既降低了硬件成本，又符合盒子类终端设备小型化的技术趋势，提升了产品综合竞争力。并且即使在已经硬件定型的产品上，发现WIFI信号受HDMI信号问题后，也能通过本发明实施例解决干扰问题。并且本发明实施例的操作软件在后台进行，用户体验不受影响。在某产品上实际测试验证此方案，效果如下：在有HDMI干扰情况下，4天线的吞吐数据为25-40Mbps，而关闭影响距离HDMI端口最近的那根天线，变成3天线后，WIFI吞吐数据提升到71-136Mbps，性能大幅提升，足以支撑4K UHD视频码流。
需要说明的是，由于WIFI频段范围广，覆盖了2.4G频段(2400Mhz-2483.5Mhz)和5G频段(5170Mhz-5835Mhz)，除了HDMI信号会对WIFI信号造成干扰以外，其他接口和设备比如通用串行接口(英文：Universal Serial Bus，简称：USB)3.0、蓝牙、长期演进(英文：Long Term Evolution，简称：LTE)等都可能对WIFI形成干扰。在这些有干扰的场景中，同样可以运用本发明实施例所描述的方案，终端识别干扰场景，动态调整影响最大的WIFI天线来规避干扰，提升WIFI性能和用户体验。
图7示出了本发明实施例提供的机顶盒、无线接入点和智能电视的一种实施例，以及三者构成的通信系统的结构示意图。如图7所示，机顶盒700和无线接入点800之间可存在WIFI连接，可实现二者之间的WIFI数据通信。机顶盒700和智能电视900之间可存在HDMI连接，可实现二者之间的HDMI数据通信。如图7所示，机顶盒700可包括：处理单元701、WIFI通信模块702和HDMI通信模块703，其中：
WIFI通信模块702用于与无线接入点800进行WIFI信号传输；
HDMI通信模块703用于与智能电视900进行HDMI信号传输；
处理单元701用于确定当前WIFI通信模块702工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于预设信号强度阈值，其中，所述机顶盒配置有WIFI模块和HDMI端口；
若是，则处理单元701还用于控制受HDMI信号干扰最大的WIFI天线停止收发信号。
可选的，所述处理单元701，用于确定当前工作的WIFI信道是否受到HDMI信号的干扰，包括：
根据所述当前工作的WIFI信道、所述机顶盒的HDMI端口输出的视频信号的分辨率以及所述机顶盒的HDMI端口输出的时钟信号的倍频确定所述当前工作的WIFI信道是否受到HDMI信号的干扰。
可选的，所述当前工作的WIFI信道为所述机顶盒根据无线接入点发送的信标帧确定的。
可选的，所述受HDMI信号干扰最大的WIFI天线为距离所述机顶盒的HDMI端口最近的天线。
可选的，所述处理单元701控制受HDMI信号干扰最大的WIFI天线停止收发信号之后，所述处理单元701还用于：
确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于所述预设信号强度阈值；
若当前工作的WIFI信道未受到HDMI信号的干扰，或者接收到的WIFI信号的强度大于所述预设信号强度阈值，所述处理单元还用于控制受HDMI信号干扰最大的所述WIFI天线启动收发信号。
本发明实施例中的处理器701的功能与图2所示实施例中的处理器201类似，WIFI模块702的功能与图2所示实施例中的WIFI模块202类似，HDMI模块703与图2所示实施例中的HDMI端口203类似。
需要说明的是，图7实施例中未提及的内容以及各个功能单元的具体实现，请参考图5实施例，这里不再赘述。
综上所述，实施本发明实施例，终端可以动态调整天线，增强整个系统的抗干扰能力。相对传统的硬件屏蔽方式，本发明实施例不需要额外增加屏蔽罩和其他器件，降低了硬件成本，在不增加硬件成本和硬件复杂度的基础上，可以提高WIFI性能。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (10)

  1. 一种提高WIFI性能的方法，其特征在于，包括：
    终端确定当前工作的无线保真WIFI信道是否受到高清晰度多媒体HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于预设信号强度阈值，其中，所述终端配置有WIFI模块和HDMI端口；
    若是，所述终端控制受HDMI信号干扰最大的WIFI天线停止收发信号。
  2. 根据权利要求1所述的方法，其特征在于，所述终端确定当前工作的WIFI信道是否受到HDMI信号的干扰，包括：
    所述终端根据所述当前工作的WIFI信道、所述终端的HDMI端口输出的视频信号的分辨率以及所述终端的HDMI端口输出的时钟信号的倍频确定所述当前工作的WIFI信道是否受到HDMI信号的干扰。
  3. 根据权利要求1或2所述的方法，其特征在于，所述当前工作的WIFI信道为所述终端根据无线接入点发送的信标帧确定的。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述受HDMI信号干扰最大的WIFI天线为距离所述终端的HDMI端口最近的天线。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述终端控制受HDMI信号干扰最大的WIFI天线停止收发信号之后，还包括：
    所述终端确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于所述预设信号强度阈值；
    若当前工作的WIFI信道未受到HDMI信号的干扰，或者接收到的WIFI信号的强度大于所述预设信号强度阈值，所述终端控制受HDMI信号干扰最大的所述WIFI天线启动收发信号。
  6. 一种终端，其特征在于，所述终端包括：处理单元；
    所述处理单元，用于确定当前工作的无线保真WIFI信道是否受到高清晰度多媒体HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于预设信号强度阈值，其中，所述终端配置有WIFI模块和HDMI端口；
    若是，则所述处理单元还用于控制受HDMI信号干扰最大的WIFI天线停止收发信号。
  7. 根据权利要求6所述的终端，其特征在于，所述处理单元，用于确定当前工作的WIFI信道是否受到HDMI信号的干扰，包括：
    根据所述当前工作的WIFI信道、所述终端的HDMI端口输出的视频信号的分辨率以及所述终端的HDMI端口输出的时钟信号的倍频确定所述当前工作的WIFI信道是否受到HDMI信号的干扰。
  8. 根据权利要求6或7所述的终端，其特征在于，所述当前工作的WIFI信道为所述 终端根据无线接入点发送的信标帧确定的。
  9. 根据权利要求6至8任一项所述的终端，其特征在于，所述受HDMI信号干扰最大的WIFI天线为距离所述终端的HDMI端口最近的天线。
  10. 根据权利要求6至9任一项所述的终端，其特征在于，所述处理单元控制受HDMI信号干扰最大的WIFI天线停止收发信号之后，所述处理单元还用于：
    确定当前工作的WIFI信道是否受到HDMI信号的干扰且接收到的WIFI信号的强度是否小于或等于所述预设信号强度阈值；
    若当前工作的WIFI信道未受到HDMI信号的干扰，或者接收到的WIFI信号的强度大于所述预设信号强度阈值，所述处理单元还用于控制受HDMI信号干扰最大的所述WIFI天线启动收发信号。
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