WO2018072426A1

WO2018072426A1 - Data transmission method and apparatus, mobile telephone, and data card

Info

Publication number: WO2018072426A1
Application number: PCT/CN2017/082763
Authority: WO
Inventors: 邓庆田
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-10-17
Filing date: 2017-05-02
Publication date: 2018-04-26
Also published as: CN107959545A

Abstract

Provided in the embodiment of the present invention are a data transmission method and apparatus, a mobile telephone, and a data card, the method comprising: a first device being connected to a second device by means of a universal serial bus USB interface; detecting current wireless radio frequency information of the first device; selecting a data transmission mode of the USB interface on the basis of the wireless radio frequency information, and implementing data transmission on the basis of the selected data transmission mode, the frequency spectrum ranges of the USB interface corresponding to different data transmission modes being different. The present invention solves the problem in the prior art of the low transmission rate or the ease of frequency band interference being produced during data transmission when using a single USB transmission mode.

Description

Data transmission method and device, mobile phone, data card

Technical field

This embodiment relates to the field of communications, and in particular, to a data transmission method and apparatus, a mobile phone, and a data card.

Background technique

In the related art, the output of data is mainly transmitted through a USB interface through a USB interface. USB2.0 can not fully meet the requirements of terminal performance, and needs to use the USB3.0 interface, but USB3.0 has a natural defect, which is to interfere with the LTE frequency band.

There is no complete data mode switching scheme in the related art, or a single method using USB2.0 or USB3.0. In the related art, the data transmission mode adopted by the terminal is single, and only one transmission mode exists, so that If you only use USB2.0, you can't meet the higher performance requirements of the terminal rate; if you only use USB3.0, you can't avoid the interference of USB3.0 to the frequency band.

In view of the above problems in the related art, no effective solution has been found yet.

Summary of the invention

The embodiment provides a data transmission method and device, a mobile phone, and a data card to solve at least the problem that the transmission rate caused by using a single USB transmission mode in the related art is low or the frequency band interference is easily generated during data transmission.

According to an embodiment, a data transmission method is provided, including:

The first device is connected to the second device by using a universal serial bus USB interface; detecting current wireless radio frequency information of the first device; selecting a data transmission mode of the USB interface according to the wireless radio frequency information, and selecting, according to the selected data The transmission mode performs data transmission, wherein the spectrum range of the USB interface corresponding to different data transmission modes is different.

Optionally, the data transmission manner includes: using USB2.0 for data transmission and use. USB3.0 for data transmission.

Optionally, detecting the radio frequency information currently used by the first device includes at least one of: detecting a radio frequency transmission rate of the first device; detecting a signal state of the first device; detecting that the first device is The communication protocol used for RF transmission.

Optionally, detecting a signal state of the first device includes: detecting a reference signal received power RSRP of the wireless air interface of the first device, and/or a signal to interference plus noise ratio SINR; according to the RSRP and/or The SINR gets the signal state.

Optionally, the communication protocol comprises: a long term evolution LTE protocol, a bandwidth code division multiple access WCDMA protocol, a code division multiple access CDMA protocol, a time division multiple access TD-SCDMA protocol, and a global mobile communication system GSM protocol.

Optionally, selecting a data transmission manner of the USB interface according to the radio frequency information includes: selecting a data transmission manner of the USB interface according to the radio frequency transmission rate and/or the signal state, where The data transmission method includes one of the following: USB3.0, USB2.0.

Optionally, when the radio frequency information is a communication protocol, selecting a data transmission manner of the USB interface according to the radio frequency information includes: when the communication protocol is one of: WCDMA protocol, CDMA protocol, TD- The SCDMA protocol and the GSM protocol are selected as the data transmission mode of the USB interface. When the communication protocol is the LTE protocol, it is determined whether the current radio frequency transmission rate of the LTE protocol is less than a first preset threshold. When the result is YES, USB2.0 is selected as the data transmission mode of the USB interface, and when the determination result is no, USB3.0 is selected as the data transmission mode of the USB interface.

Optionally, when the radio frequency information is in a signal state, selecting a data transmission manner of the USB interface according to the radio frequency information includes: starting a timer when the signal state is lower than a second preset threshold, When the time that is lower than the second preset threshold reaches the set value, USB2.0 is selected as the data transmission mode of the USB interface.

Optionally, the first device includes one of the following: a mobile phone, a data card.

According to another embodiment, a data transmission apparatus is provided for use in a first device, a package The connection module is configured to be connected to the second device through the universal serial bus USB interface; the detecting module is configured to detect the current wireless radio frequency information of the first device;

a selection module, configured to select a data transmission manner of the USB interface according to the wireless radio frequency information, and perform data transmission according to the selected data transmission manner, where different frequency spectrums of the USB interface corresponding to the data transmission manner are The range is different.

Optionally, the data transmission manner includes: using USB2.0 for data transmission and using USB3.0 for data transmission.

Optionally, the detecting module further includes: a first detecting unit configured to detect a radio frequency transmission rate of the first device; a second detecting unit configured to detect a signal state of the first device; and a third detecting unit, setting To detect the communication protocol used by the first device during radio frequency transmission.

Optionally, the second detecting unit is further configured to: detect a reference signal received power RSRP of the wireless air interface of the first device, and/or a signal to interference plus noise ratio SINR; according to the RSRP and/or Said SINR gives the signal state.

Optionally, the selecting module further includes: a first selecting unit, configured to select a data transmission manner of the USB interface according to the radio frequency transmission rate and/or the signal state, where the data transmission manner of the USB interface includes the following One: USB3.0, USB2.0.

Optionally, when the radio frequency information is a communication protocol, the selecting module further includes: a second selecting unit, configured to: when the communication protocol is one of: WCDMA protocol, CDMA protocol, TD-SCDMA protocol, GSM protocol The USB2.0 is selected as the data transmission mode of the USB interface, and the third selection unit is configured to determine whether the current radio frequency transmission rate of the LTE protocol is less than a first preset threshold when the communication protocol is the LTE protocol. When the determination result is yes, USB2.0 is selected as the data transmission mode of the USB interface, and when the determination result is no, USB3.0 is selected as the data transmission mode of the USB interface.

Optionally, when the radio frequency information is in a signal state, the selecting module further includes: a fourth selecting unit, configured to start a timer when the signal state is lower than a second preset threshold, and continue to be lower than the first When the time of the preset threshold reaches the set value, USB2.0 is selected as the data transmission mode of the USB interface.

According to still another embodiment, a mobile phone is provided, including: a detecting circuit configured to detect current radio frequency information of the mobile phone, wherein the mobile phone is connected to a second device through a universal serial bus USB interface; The data transmission mode of the USB interface is selected according to the wireless radio frequency information, and the data transmission is performed according to the selected data transmission mode, wherein the spectrum ranges of the USB interfaces corresponding to different data transmission modes are different.

According to still another embodiment, a data card is provided, including: a detecting circuit configured to detect current radio frequency information of the data card, wherein the data card is connected to the second device through a universal serial bus USB interface; a selection circuit, configured to select a data transmission mode of the USB interface according to the wireless radio frequency information, and perform data transmission according to the selected data transmission mode, wherein a spectrum of the USB interface corresponding to the data transmission mode is different The range is different.

According to still another embodiment, a data transmission system is provided, including: a first device, a second device, and a universal serial bus USB interface, the first device further includes: a connection module, configured to pass through the USB interface The detecting device is configured to detect the current radio frequency information of the first device, and the selecting module is configured to select a data transmission mode of the USB interface according to the radio frequency information, where the data is The transmission mode is set to characterize the spectral range of the USB interface.

According to yet another embodiment, a storage medium is also provided. The storage medium is arranged to store program code for performing the following steps:

The first device is connected to the second device through a universal serial bus USB interface;

Detecting current radio frequency information of the first device;

Determining, according to the radio frequency information, a data transmission manner of the USB interface, and performing data transmission according to the selected data transmission manner, where different frequency ranges of the USB interface corresponding to the data transmission manner are different.

Through the invention, since the data transmission mode of the USB interface is selected according to the radio frequency information of the first device, the interference of the USB transmission to the radio frequency band can be avoided, and the high-rate transmission mode can also be adopted when the condition permits. Data transmission can solve related The problem of low transmission rate caused by using a single USB transmission method in technology or frequency band interference during data transmission is easy. The data is transmitted at a high rate without causing interference in the air interface band, which improves the user experience.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flow chart of a data transmission method according to an embodiment of the present invention;

2 is a block diagram showing the structure of a data transmission device according to an embodiment of the present invention;

3 is a structural block diagram of a mobile phone according to an embodiment of the present invention;

4 is a structural block diagram of a data card according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a data transmission system according to an embodiment of the present invention; FIG.

6 is a schematic diagram of a spectrum of a USB 3.0 according to an embodiment of the present invention;

Figure 7 is a schematic diagram of a device module in accordance with the embodiment of the present invention;

FIG. 8 is a flowchart of a USB connection power-on process mode according to the embodiment of the present invention; FIG.

9 is a flowchart of a signal state priority power-on process mode according to an embodiment of the present invention;

Figure 10 is an alternative schematic diagram of a device module in accordance with the present embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

Example 1

A data transmission method is provided in this embodiment. FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:

Step S102, the first device is connected to the second device by using a Universal Serial Bus (USB) interface;

Step S104, detecting current radio frequency information of the first device;

Step S106: Select a data transmission mode of the USB interface according to the radio frequency information and perform data transmission according to the selected data transmission mode, wherein the spectrum range of the USB interface corresponding to different data transmission modes is different.

Through the above steps, since the data transmission mode of the USB interface is selected according to the radio frequency information of the first device, the interference of the USB transmission to the radio frequency band can be avoided, and the high-rate transmission mode can also be used when the condition permits. The data transmission can solve the problem that the transmission rate caused by using a single USB transmission mode in the related art is low or the frequency band interference is easily generated during data transmission. The data is transmitted at a high rate without causing interference in the air interface band, which improves the user experience.

Optionally, the execution body of the foregoing steps may be a mobile phone, a data card, or the like, but is not limited thereto.

Optionally, the data transmission method includes: using USB2.0 for data transmission and using USB3.0 for data transmission. USB interfaces include but are not limited to support: USB1.0, USB2.0, USB3.0, etc.

Optionally, detecting the radio frequency information currently used by the first device includes at least one of the following:

Detecting a radio frequency transmission rate of the first device;

Detecting a signal state of the first device;

Detecting the communication protocol used by the first device during radio frequency transmission. Optionally, the communication protocol may be, but is not limited to, 2G, 3G, 4G, 5G, etc., such as Long-Term Evolution (LTE) protocol, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, Referred to as WCDMA protocol, Code Division Multiple Access (CDMA) protocol, time division synchronous code division multiple access (Time Division-Synchronous Code Division Multiple Access (referred to as TD-SCDMA) protocol, Global System for Mobile Communication (GSM) protocol.

In an optional implementation manner of the embodiment of the present invention, detecting a signal state of the first device includes:

S11, detecting a reference signal received power RSRP of the wireless air interface of the first device, and/or a signal to interference plus noise ratio SINR;

S12, obtaining a signal state according to RSRP and/or SINR.

Optionally, the data transmission mode of the USB interface is selected according to the radio frequency information, and the data transmission mode of the USB interface is selected according to the radio frequency transmission rate and/or the signal state, where the data transmission manner of the USB interface is included. One of the following: USB3.0, USB2.0, specifically, when the RF transmission rate is greater than a specific value, and/or when the signal state is greater than a specific value, USB3.0 is selected as the data transmission mode of the USB interface; When less than or equal to a specific value, and/or when the signal state is less than or equal to a specific value, USB2.0 is selected as the data transmission mode of the USB interface.

Optionally, the selection may be performed manually or automatically. In an optional implementation that is automatically implemented by the device, when the radio frequency information is in a signal state, the data transmission mode of the USB interface is selected according to the radio frequency information, including: When the signal state is lower than the fourth preset threshold, the timer is started, and when the time is lower than the fourth preset threshold, the USB2.0 is selected as the data transmission mode of the USB interface.

In an optional implementation manner of the embodiment of the present invention, when the radio frequency information is a communication protocol, selecting a data transmission manner of the USB interface according to the radio frequency information includes: when the communication protocol is one of the following: WCDMA protocol, CDMA protocol, TD -SCDMA protocol, GSM protocol, select USB2.0 as the data transmission mode of the USB interface; when the communication protocol is LTE protocol, determine whether the current radio frequency transmission rate of the LTE protocol is less than the first preset threshold, when the judgment result is yes, Select USB2.0 as the data transmission mode of the USB interface. When the judgment result is no, select USB3.0 as the data transmission mode of the USB interface. Selecting, according to the wireless radio frequency information, data transmission of the USB interface when the radio frequency information is a signal state The method includes: starting a timer when the signal state is lower than a second preset threshold, and selecting USB2.0 as the USB interface when a time that is lower than the second preset threshold reaches a set value Data transmission method.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.

Example 2

In the embodiment, a data transmission device, a physical device, and a system are provided to implement the foregoing embodiments and preferred embodiments, which are not described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

2 is a structural block diagram of a data transmission apparatus according to an embodiment of the present invention, which is applied to a first device, as shown in FIG. 2, the device includes:

The connection module 20 is configured to be connected to the second device through a universal serial bus USB interface;

The detecting module 22 is configured to detect current radio frequency information of the first device;

The selection module 24 is configured to select a data transmission mode of the USB interface according to the radio frequency information and perform data transmission according to the selected data transmission mode, wherein the spectrum range of the USB interface corresponding to different data transmission modes is different.

Optionally, the data transmission mode includes: using USB2.0 for data transmission and using USB3.0 for data transmission, and the USB interface includes but not limited to support: USB1.0, USB2.0, USB3.0, and the like.

Optionally, the detecting module further includes: a first detecting unit configured to detect a radio frequency transmission rate of the first device; a second detecting unit configured to detect a signal state of the first device; and a third detecting unit configured to detect the first The communication protocol used by the device during RF transmission.

Optionally, the second detecting unit is further configured to: detect a reference signal received power RSRP of the wireless air interface of the first device, and/or a signal to interference plus noise ratio SINR; and obtain a signal state according to the RSRP and/or the SINR.

Optionally, when the radio frequency information is in a signal state, the selecting module further includes: a fourth selecting unit, configured to start the timer when the signal state is lower than the second preset threshold, and continue to be lower than the first When the time of the preset threshold reaches the set value, USB2.0 is selected as the data transmission mode of the USB interface.

FIG. 3 is a structural block diagram of a mobile phone according to an embodiment of the present invention. As shown in FIG. 3, the mobile phone includes:

The detecting circuit 30 is configured to detect current radio frequency information of the mobile phone, where the mobile phone is connected to the second device through a universal serial bus USB interface;

The selection circuit 32 is configured to select a data transmission mode of the USB interface according to the radio frequency information and perform data transmission according to the selected data transmission mode, wherein the spectrum range of the USB interface corresponding to different data transmission modes is different.

4 is a structural block diagram of a data card according to an embodiment of the present invention. As shown in FIG. 4, the data card includes:

The detecting circuit 40 is configured to detect current radio frequency information of the data card, wherein the data card is connected to the second device through a universal serial bus USB interface;

The selection circuit 42 is configured to select a data transmission mode of the USB interface according to the radio frequency information and perform data transmission according to the selected data transmission mode, wherein the spectrum range of the USB interface corresponding to different data transmission modes is different.

FIG. 5 is a structural block diagram of a data transmission system according to an embodiment of the present invention. As shown in FIG. 5, the device includes: a first device 50, a second device 52, and a universal serial bus USB interface 54,

The first device 50 further includes:

The connection module 502 is configured to be connected to the second device through the USB interface;

The detecting module 504 is configured to detect current radio frequency information of the first device;

The selection module 506 is configured to select a data transmission mode of the USB interface according to the radio frequency information and perform data transmission according to the selected data transmission mode, wherein the spectrum range of the USB interface corresponding to different data transmission modes is different.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

Example 3

The embodiment provides an access method, system and device for changing a data transmission mode by detecting a signal state, which can solve the problem that the data cannot be normally transmitted and the rate is low under the medium weak signal in the process of USB3.0 wireless access. The problem is to better meet the data transmission performance requirements of USB3.0 wireless terminal equipment. include:

The wireless terminal device supports USB2.0 and USB3.0 data transmission modes, and can realize the terminal device as a slave device in USB2.0 and USB3.0 under the condition that the USB3.0 cable and the host USB3.0 are unchanged. Switching between

The wireless terminal device supports signal strength detection and frequency interference detection, and according to the detection, according to the theoretical value of the wireless transmission rate, measures the current frequency interference, and sets the current device data transmission mode;

The wireless terminal can select a corresponding data transmission mode according to the wireless radio frequency band, and when the frequency band scan selects the 3G or 2G mode as the networking mode, select USB2.0 as the data transmission mode;

The wireless terminal can select a corresponding data transmission mode according to the radio frequency band. When the band scan is selected in the LTE mode, and the current theoretical value of the LTE mode is not more than 300 M, the USB 2.0 is selected as the data transmission mode.

The wireless terminal can select a corresponding data transmission mode according to the radio frequency band. When the band scan is selected in the LTE mode, and the highest theoretical value in the currently selected LTE mode does not exceed 300 M, the USB 2.0 is selected as the data transmission mode;

The wireless terminal can select a corresponding data transmission mode according to the radio frequency band. When the band scanning is selected in the LTE mode, the current theoretical value of the LTE band mode is more than 300M. When the signal strength is strong, the default is to select USB 3.0 as the data. Transmission mode

The wireless terminal can select a corresponding data transmission mode according to the radio frequency band. When the band scanning is selected in the LTE mode, the current theoretical value of the LTE mode is more than 300 M. When the signal strength is in the middle weak signal, the USB 2.0 is selected as the data transmission by default. mode;

During the power-on operation of the device, when the initial LTE is in a strong signal, the highest theoretical value of the LTE mode exceeds 300M and the USB 3.0 mode is selected, when the signal strength is weak, and the medium-weak signal is reached, the rate transmission performance is degraded, and the internal identification module provides The identification mechanism notifies the user of this status, allowing the user to select whether to switch to the USB 2.0 data transmission mode; if the user does not make a selection to switch to the USB 2.0 mode, when the signal continues to weaken, the data transmission is interrupted, and a certain time is reached, the device automatically Switch to USB 2.0 mode;

During the power-on operation of the device, when the initial LTE is in a strong signal, the highest theoretical value of the selected LTE mode exceeds 300M, and the data transmission mode is selected in the USB 3.0 mode, the device switches to the 3G or other LTE frequency bands during use. When the theoretical value rate is lower than 300M), If the signal strength is strong, the device continues to save in the USB 3.0 transmission mode; if the signal strength is weak and the medium weak signal is reached, the rate transmission performance is degraded, and the internal identification module provides an identification mechanism to notify the user of this status, and let the user select whether to switch. To the USB 2.0 data transmission mode, if the switch is selected, the wireless terminal device switches to the USB2.0M mode; if the user does not make a selection to switch to the USB 2.0 mode, when the signal continues to weaken and the data transmission is interrupted, the device reaches a certain time, and the device automatically Switch to USB 2.0 mode;

Embodiments of the present invention provide an access method, system, and apparatus for changing a data transmission manner by detecting a signal state, where the same device performs between modes while USB 2.0 and USB 3.0 are not replacing the USB data line. Dynamic switching ensures maximum wireless terminal data transmission performance and avoids spectrum interference of USB3.0. Under the strong signal and high-speed LTE products, the performance of USB3.0 is fully utilized.

In the present application, USB is an abbreviation of English Universal Serial Bus, and its Chinese abbreviation is "through string", which is an external bus standard for standardizing the connection and communication between a computer and an external device. It is an interface technology applied in the PC field. The USB interface supports plug-and-play and hot-swap capabilities of the device. USB was jointly proposed by Intel, Compaq, IBM, Microsoft and other companies at the end of 1994. USB has experienced three major versions of USB1.1USB2.0USB3.0 upgrade, and the transfer rate has been greatly improved, from 12MBPS to 480MBPS. Up to now, the newer specification USB3.0 has reached 5Gbps.

A significant advantage of USB is that it supports hot swap and can safely connect or disconnect USB devices for true plug and play. Wireless networking devices using USB interfaces are widely used, for example, wireless USB wifi network cards, data cards, and currently widely used smartphones.

USB 2.0 uses four pins, power and ground, and the remaining two wires are responsible for transmitting signals, which are transmitted as differential signals. Compared with the transmission method in which one signal is grounded, the differential signal transmits signals on two wires at the same time, and the signals have the same amplitude and opposite phases.

There are four major advantages to doing this. The first is that the anti-interference ability is good, because the external electromagnetic interference acts on the two wires at the same time (common mode noise), and the values after the subtraction are unchanged; The opposite phase of the signal, the electromagnetic fields generated by the two wires cancel each other out, and the external electromagnetic interference is small; in addition, because the two wires are alternately used as the judgment basis instead of the voltage judgment, it is less susceptible to the temperature change of the part. The impact; finally, the voltage change amplitude of the differential signal can be made smaller, reducing the power consumption of the device.

USB 2.0 transmission speed is 480Mbps, so the differential signal must be 240MHz, USB 3.0 is based on USB 2.0 and then add 5 lines, 4 lines respectively form 2 pairs of differential signal transmission, providing full duplex transmission Capability, the remaining one is used as a shield for the entire wire and grounding. The frequency of the differential signal has also increased, from 240MHz to 2.5GHz, to reach 5Gbps bandwidth.

In this embodiment, the RSRP (Reference Signal Receiving Power) can represent one of the key parameters of the wireless signal strength and the physical layer measurement requirement in the LTE network. Received Signal Strength Indication The received signal strength indication, an optional part of the wireless transmission layer, used to determine the link quality and whether to increase the broadcast transmission strength. Simply understand even the signal strength. SINR: (Signal to Interference plus Noise Ratio) is the ratio of the strength of the received useful signal (noise and interference), which can be simply understood as “signal to noise ratio”. Noise and Interference are two. A different concept, the general Noise is a wide band of noise, mainly determined and generated by the thermal performance of the receiver. Interference, as the name implies, refers to interference, such as signals from other systems, whose spectrum is much narrower than Noise.

Usually expressed as follows:

SINR=Signal/(Interference+Noise);

S: measured power of the useful signal, the main signals and channels of interest include: RS, PDSCH;

I: The power of the measured signal or channel interference signal, including the interference of other cells in the system, and the interference of different systems:

N: Low noise, related to the specific measurement bandwidth and receiver noise figure.

If USB 3.0 is to reach a 5 Gbit/s rate, the USB 3.0 spectrum is extensive, and frequency interference occurs at the clock signal frequency. This frequency interference can be modeled and displayed. FIG. 6 is a USB3 according to an embodiment of the present invention. The spectrum diagram of 0, from Figure 6, shows that the bandwidth of the data frequency interference is very wide, from DC to 5G. This kind of noise radiation has a wide range of effects, such as USB3.0 interface, USB3.0HOST device, USB 3.0DEVICE device, and USB 3.0 cable will be affected. When a wireless device operates within this range, its RF signal is subject to interference. USB3.0 devices can affect the signal-to-noise ratio of wireless devices and reduce the sensitivity of wireless antenna reception. Ultimately, it affects the throughput of such wireless devices. The speed of USB3.0 can reach 5Gbit/s. The spectrum of USB3.0 is wide, and frequency interference will occur at the clock signal frequency. Rate spectrum interference is available from DC to 5GHz. The model of its data spectrogram is similar to a sine function (sinc)

Simply put, the RF signal generated by USB3.0 will affect the signal-to-noise ratio of nearby communication terminals, which is the SINR value. The smaller the RSRP, the larger the SINR, which affects the rate of the communication terminal and even stops communication.

With the development of technology, the construction and layout of operators' wireless networks, wireless networking services are becoming more and more widespread, and the use of terminals is becoming increasingly popular. The rate requirement is also getting higher and higher, and it is inevitable to use a wireless device with a USB 3.0 interface. Although there are some shielding methods, for example, the use of a USB interface cable is longer, adding more shields and other methods, this is useful. However, when the signal of the wireless device is relatively weak, the frequency interference of the USB3.0 directly affects the device, especially the wireless Internet access device, and the data communication is directly disconnected.

The present embodiment provides a method for changing a data transmission mode of a wireless communication terminal. This embodiment describes a module component of the device. FIG. 7 is a schematic diagram of a device module according to the embodiment of the present invention, including:

Module one S101: a data signal state acquisition module of the wireless communication terminal;

Module 2 S102 (not shown in FIG. 7): a USB channel transmission conversion module of the wireless communication terminal;

Module 3 S103: a transmission mode main control module of the wireless communication terminal;

The wireless communication terminal in this embodiment may be a wireless data product or device, and the example device may be part of other wireless terminal devices. It can be a wireless data card, a mobile phone, or other wireless networking device that uses USB to transmit data, or is part of a wireless networking device.

This embodiment provides a basic module for data path mode switching. Therefore, the module S101 provides a state for acquiring a wireless communication network, for example, acquiring a network state of the current network, a frequency band selected by the air interface, and status information of the current wireless air interface RSRP and SINR;

The function of the S102 module is to first support the dynamic switching of the data transmission mode of USB2.0 and USB3.0, and the second to complete the data transmission of the wireless data to the PC or to the other USB HOST receiving end;

The function of the S103 module acquires the networking state information of the wireless network according to S101, and realizes dynamic control of S102. This module is also the core part of the device.

It is necessary to further explain the preconditions for the use of the device. The device itself supports the dynamic switching between the USB2.0 and USB3.0 connection states, and the USB HOST device connected thereto supports USB2.0 and USB3.0. In the main mode, the device and other USB HOST device cables use a physical cable that supports USB3.0;

To further illustrate the magnitude of the signal strength and the noise ratio, the following is an example of the approximate range of signal states, defined as five different states: A/B/C/D/E:

A very good point: RSRP>-85dBm SINR>25

B good point: RSRP=-85~-95dBm SINR: 16-25

C midpoint: RSRP=-95~-105dBm SINR: 11-15

D difference: RSRP=-105~-115dBm SINR: 3-10

E pole difference: RSRP<-115dB SINR<3

It is further explained that the S101 module has been acquiring the wireless state information of the device since the device is powered on, and the S103 main control module is powered on earlier than the S102 module.

To further illustrate the implementation process of the device, continue to illustrate the example, the wireless networking terminal device used by the subordinates can support 2G/3G/4G, and the 4G can support 100M, 150M, 300M, And a variety of modes above 300M, this device is referred to herein as a wireless device.

To better illustrate the use of wireless devices, the following examples will be illustrated in different scenarios.

USB connection power supply power-on process mode switching example:

In this example, the only power supply interface of the wireless device is a USB 3.0 cable;

Mode switching conditions network standard and signal status:

For the wireless device power-on process, the following different scenarios are illustrated: FIG. 8 is a flowchart of a USB connection power-on process mode according to the embodiment of the present invention, including:

The wireless device defaults to one of the three modes of 2G/3G/4G (the theoretical downlink rate is less than 300M 4G). The main control module detects one of the above networking states and sets the USB data transmission module to USB2. 0 mode;

The wireless device is set to the network mode in which the downlink theoretical data value of the frequency band is greater than 300M by default. The S101 detection module detects the above state, and detects that the current state is above the C midpoint, and the main control module sets the USB data according to the networking state information acquired by S101. The transmission mode is USB3.0 mode;

The wireless device is set to a bandwidth mode with a theoretical transmission data value greater than 300M by default. The S101 detection module detects the above state, and detects that the current state is at a midpoint or a midpoint. The main control module sets the USB according to the network state information acquired by S101. The data transmission mode is USB3.0 mode;

The above power-on process is a control flow of a power-on process that provides power supply through a USB interface.

Signal state priority power-on process mode switching example:

FIG. 9 is a flowchart of a signal state priority power-on process mode according to an embodiment of the present invention. In this example, the wireless device starts up and runs before the USB 3.0 cable is connected, and the operation mode selects a judgment condition, and the signal state takes precedence:

When the USB 3.0 cable is connected to the wireless device, the main control module acquires the detection state of the current detection module, and selects and controls the data transmission mode of the USB according to the detected state. The judgment is based on the signal system but the signal state. Make good or bad choices;

The acquired signal state is above C, and the control module sets the data transmission mode to USB3.0 mode;

When the acquired signal state is C and below, the main control module sets the data transmission mode to the USB2.0 mode;

Mode state selection during signal state change:

After the device is powered on and the data module mode is set, the networking state of the wireless device will also change. When the signal state changes, the data transmission mode will also be set according to the selection of the main control module.

Such changes in the state of the network are also normal. For example, changes in the networked users of the base station, movement of the location of the wireless device, selection of different standards by the wireless device user according to their own needs, etc., may cause changes in the signal state of the wireless device.

The change of the current state is in the case where the USB connection mode has been determined, and the selection of the signal state for the USB connection mode depends not only on the main control module but also on the participation of the wireless device user.

The reason is as follows. After the USB mode connection is established, a data connection has been established between the wireless device and the USB HOST host. If the unlimited device switches between USB 2.0 and USB 3.0, the normally connected data is directly disconnected. If the USB HOST user is making important data connections, it will cause serious problems such as data loss. For example, if the signal is degraded and the rate is degraded, it does not affect the normal use of the user. For the user, the rate is not a high priority, as long as the connection state is maintained. In this case, USB3.0 and USB2.0 cannot be used. Switching between actions.

Therefore, the switch between USB2.0 and USB3.0 requires the choice of the main control module and the user to make a suitable choice.

FIG. 10 is a schematic diagram of an optional device module according to the embodiment of the present invention. On the basis of the original three modules, an additional communication module and user communication notification and setting module, which is referred to as a user communication setting module, is added. The function of this module is to realize the communication between the main control module and the user. The communication method of this module can be in various forms, but it is not limited to the following types. The purpose is to realize the main control module and use. User communication.

For example, in the first method, the wireless device can have a touch and display screen, and the main control module can establish communication with the touch and display screens. When it is required to switch between USB2.0 and 3.0, the main control module can be displayed on the screen, allowing the user to do Select and then notify the master module;

Method 2: In the USB HOST host, develop client software to establish communication with the main control module of the wireless device. When it is necessary to make USB2.0 and USB3.0 switching control, the user client software notifies the main control module to make select.

To better illustrate the impact of signal state changes on mode selection, the following examples are further illustrated in the no-application scenario:

Scenario 1, the current wireless device is in one of 2G/3G/3G/4G (the theoretical downlink rate is less than 300M 4G), and is in the USB2.0 connection mode. If the user needs to obtain a higher downlink transmission rate, the user communication setting module Firstly, the main control module is notified to switch the wireless frequency band mode to a frequency band mode higher than the theoretical value greater than 300M, and the main control module checks that the current signal state is in the A or B state, and switches the USB mode to the USB3.0 mode; the main control module checks Until the current signal state is in the C state or the following state, it remains in the current USB 2.0 state;

In scenario 2, the wireless device is currently in the USB3.0 connection mode, and the main control module detects that the current signal state is in the C or C state. The main control module notifies the user of the communication setting module, and informs the current module status, if a better downlink is needed. The rate can be switched to the USB2.0 mode. If the user makes a selection switch, the main control module notifies the USB module to switch to the USB2.0 mode; if the user does not make a selection, the current USB 3.0 connection state is maintained;

If the signal state further deteriorates until the network data connection cannot be realized, the main control module starts the timer, and the time when the continuous data cannot be connected reaches the set value, and at the same time, the mode switching instruction of the user is not received, the main control module will The USB mode is switched to the USB 2.0 state. If a switch command is received during the timing, it will switch directly to USB2.0 mode and cancel the timer.

The setting value of the above timer is set by the wireless device according to the application requirement, and the value can also be set by the user communication setting module, and the user can cancel the setting value at any time;

Scenario 3: The wireless device is currently in the strong signal of LTE, and when the highest theoretical value of the selected LTE mode exceeds 300M, the data transmission mode is selected in the USB 3.0 mode. The user sets the module through the user communication, and the wireless frequency band is switched to the 3G or other LTE frequency bands (the theoretical value rate value is lower than 300M). If the signal strength is strong, the device continues to save in the USB 3.0 transmission mode; if the signal is degraded, the rate is transmitted. If the performance is degraded, it will enter the processing flow of scenario 2.

Specific wireless terminal equipment embodiment:

For example, a wireless terminal device, an LTE data card device supports 3G, and two CA modes of LTE BAND3BAND7 and BAND3+BAND7, BAND3BAND7 can reach 300M in the respective 20M bandwidth, and also supports BAND3+BAND7+BAND8 three CA. mode. In the laboratory environment, BAND3+BAND7+BAND8 in the case of strong signals, the maximum speed of USB2.0 can only reach 340M, while in the case of USB3.0, the downlink can reach more than 440M (the theoretical limit of 450M of LTE 3CA) The above results show that USB2.0 cannot meet the limit value of LTE exceeding 300M. To obtain a higher downlink rate, only USB3.0 mode can be selected.

BAND3+BAND7 two CAs have a SINR value of 30 in the case of strong signal-72dBm, and the downlink rate of USB3.0 and USB2.0 mode tests are around 298Mbit/s, and there is basically no difference in the downlink rate. In the laboratory, the signal strength is reduced to -90dBm through the attenuator. When the USB3.0 is connected, the SINR value reaches 24, the downlink rate is only 114Mbit/s, the USB2.0 is connected, the SINR value reaches 26, and the downlink rate is 290Mbit/s.

The test results of the two CAs show that under the medium weak signal, the USB2.0 downlink rate is better than the USB3.0 downlink rate.

The above LTE data card is powered by USB, and the data card can obtain information such as the wireless network connection state, for example, obtaining frequency band selection, signal strength, noise ratio, etc., and supporting hardware and software USB2.0 and USB3.0 USB modes. , and switching between the two modes. When the data card is inserted into the PC, data transmission with the PC is realized in the form of a USB network card. Install the client software on the PC to control the device, such as setting up VPN, dial-up networking, etc. In this example, the USB data transmission mode is controlled, the current connection mode can be obtained, and Set the USB data transfer mode.

Generally, if the LTE data card supports multiple radio frequency bands, in order to obtain a better downlink rate, the networking mode is preferentially set to LTE, followed by 3G.

In order to better illustrate the use case interaction and USB mode switching process, the LTE data card is taken as an example to illustrate several of the working processes:

1. The data card is inserted into the USB port of the PC supporting USB3.0.

2. After inserting, the data card is powered on and the internal system is booted.

3. The startup timing of several modules used in the device of the present invention is as follows: a signal acquisition module, a main control module, and a USB module;

4. After the main control module starts, it will always receive the parameter information transmitted by the signal acquisition module. The main control module realizes the selection of the startup mode of the USB module according to the parameter information; the specific implementation refers to the USB connection power supply process mode switching instance;

5. After the USB module mode is determined, the USB physical layer is powered on according to the selected mode, and the enumeration process is started, and the USB network card device is reported;

6. The UI on the PC is started, the dial-up networking action is completed, and the mode state of the USB can be obtained at the same time;

7. In the process of user use, if the network status changes, the user can implement the selection control of the USB mode through the client software of the UI software, and the mode state selection embodiment in the process of changing the state of the reference signal state

This embodiment solves the interference of USB3.0 to the LTE frequency band, and fully utilizes the performance of USB3.0.

Example 4

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. The first device is connected to the second device by using a universal serial bus USB interface.

S2. Detecting current radio frequency information of the first device.

S3, selecting a data transmission mode of the USB interface according to the wireless radio frequency information, and performing data transmission according to the selected data transmission manner, wherein a spectrum range of the USB interface corresponding to different data transmission manners is different.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor executes, according to the stored program code in the storage medium, the first device is connected to the second device by using a universal serial bus USB interface;

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, detecting the current radio frequency information of the first device;

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, performing a data transmission manner of selecting the USB interface according to the wireless radio frequency information, and performing data transmission according to the selected data transmission manner, The spectrum range of the USB interface corresponding to different data transmission modes is different.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Where in the essence of the invention Any modifications, equivalent substitutions, improvements, etc. made within the principles of God and the principles are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the data transmission method and device, the mobile phone, and the data card provided by the embodiment have the following beneficial effects: since the data transmission mode of the USB interface is selected according to the radio frequency information of the first device, it can be avoided. USB transmission interferes with the radio frequency band, and can also transmit data at a high rate transmission mode when conditions permit. It can solve the problem that the transmission rate caused by using a single USB transmission mode in the related art is low or the frequency band interference is easily generated during data transmission. The problem. The data is transmitted at a high rate without causing interference in the air interface band, which improves the user experience.

Claims

A data transmission method includes:

The first device is connected to the second device through a universal serial bus USB interface;

Detecting current radio frequency information of the first device;

Determining, according to the radio frequency information, a data transmission manner of the USB interface, and performing data transmission according to the selected data transmission manner, where different frequency ranges of the USB interface corresponding to the data transmission manner are different.
The method of claim 1, wherein the data transmission method comprises: data transmission using USB 2.0 and data transmission using USB 3.0.
The method according to claim 1, wherein detecting the current radio frequency information of the first device comprises at least one of the following:

Detecting a radio frequency transmission rate of the first device;

Detecting a signal state of the first device;

Detecting a communication protocol used by the first device in radio frequency transmission.
The method of claim 3, wherein detecting a signal state of the first device comprises:

Detecting a reference signal received power RSRP of the wireless air interface of the first device, and/or a signal to interference plus noise ratio SINR;

The signal state is obtained based on the RSRP and/or the SINR.
The method according to claim 3, wherein said communication protocol comprises: Long Term Evolution LTE protocol, bandwidth code division multiple access WCDMA protocol, code division multiple access CDMA protocol, time division multiple access TD-SCDMA protocol, global mobile communication system GSM protocol.
The method of claim 3, wherein the radio frequency information is based on Selecting the data transmission mode of the USB interface includes:

The data transmission mode of the USB interface is selected according to the radio frequency transmission rate and/or the signal state, wherein the data transmission mode of the USB interface includes one of the following: USB3.0, USB2.0.
The method according to claim 5, wherein when the radio frequency information is a communication protocol, selecting a data transmission manner of the USB interface according to the radio frequency information comprises:

When the communication protocol is one of the following: WCDMA protocol, CDMA protocol, TD-SCDMA protocol, GSM protocol, and USB2.0 is selected as the data transmission mode of the USB interface;

When the communication protocol is the LTE protocol, determining whether the current radio frequency transmission rate of the LTE protocol is less than a first preset threshold, and when the determination result is yes, selecting USB2.0 as the data transmission mode of the USB interface, When the determination result is no, USB 3.0 is selected as the data transmission mode of the USB interface.
The method according to claim 1, wherein when the radio frequency information is in a signal state, selecting a data transmission manner of the USB interface according to the radio frequency information comprises:

When the signal state is lower than the second preset threshold, the timer is started, and when the time is lower than the second preset threshold, the USB2.0 is selected as the data transmission mode of the USB interface. .
The method according to any one of claims 1 to 8, wherein the first device comprises one of: a mobile phone, a data card.
A data transmission device, applied to a first device, comprising:

a connection module, configured to be connected to the second device through a universal serial bus USB interface;

a detecting module, configured to detect current radio frequency information of the first device;

a selection module, configured to select a data transmission manner of the USB interface according to the wireless radio frequency information, and perform data transmission according to the selected data transmission manner, where different frequency spectrums of the USB interface corresponding to the data transmission manner are The range is different.
The apparatus according to claim 10, wherein said data transmission mode comprises: data transmission using USB 2.0 and data transmission using USB 3.0.
The apparatus of claim 10, wherein the detecting module further comprises:

a first detecting unit, configured to detect a radio frequency transmission rate of the first device;

a second detecting unit, configured to detect a signal state of the first device;

The third detecting unit is configured to detect a communication protocol used by the first device during radio frequency transmission.
The apparatus according to claim 12, wherein said second detecting unit is further configured to:

Detecting a reference signal received power RSRP of the wireless air interface of the first device, and/or a signal to interference plus noise ratio SINR;

The signal state is obtained based on the RSRP and/or the SINR.
The apparatus of claim 12, wherein the selecting module further comprises:

The first selection unit is configured to select a data transmission mode of the USB interface according to the radio frequency transmission rate and/or the signal state, where the data transmission manner of the USB interface includes one of the following: USB3.0, USB2. 0.
The apparatus according to claim 12, wherein when the radio frequency information is a communication protocol, the selecting module further comprises:

a second selecting unit, configured to: when the communication protocol is one of: WCDMA protocol, CDMA protocol, TD-SCDMA protocol, GSM protocol, select USB2.0 as the data transmission mode of the USB interface;

a third selecting unit, configured to determine, when the communication protocol is the LTE protocol, whether the current radio frequency transmission rate of the LTE protocol is less than a first preset threshold, and when the determination result is yes, select USB2.0 as the USB The data transmission mode of the interface, when the judgment result is no, selects USB3.0 as the data transmission mode of the USB interface.
The apparatus according to claim 10, wherein when the radio frequency information is in a signal state, the selecting module further comprises:

a fourth selecting unit, configured to start a timer when the signal state is lower than a second preset threshold, and select USB2.0 as the USB when a time lower than a second preset threshold reaches a set value The data transmission mode of the interface.
A mobile phone comprising:

a detecting circuit configured to detect current radio frequency information of the mobile phone, wherein the mobile phone is connected to the second device through a universal serial bus USB interface;

a selection circuit, configured to select a data transmission mode of the USB interface according to the wireless radio frequency information, and perform data transmission according to the selected data transmission mode, wherein a spectrum of the USB interface corresponding to the data transmission mode is different The range is different.
A data card that includes:

a detecting circuit configured to detect current radio frequency information of the data card, wherein the data card is connected to the second device through a universal serial bus USB interface;

a selection circuit, configured to select a data transmission mode of the USB interface according to the wireless radio frequency information, and perform data transmission according to the selected data transmission mode, wherein a spectrum of the USB interface corresponding to the data transmission mode is different The range is different.