CN106330211A - LTE frequency band selecting method and device - Google Patents

LTE frequency band selecting method and device Download PDF

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Publication number
CN106330211A
CN106330211A CN201610786125.0A CN201610786125A CN106330211A CN 106330211 A CN106330211 A CN 106330211A CN 201610786125 A CN201610786125 A CN 201610786125A CN 106330211 A CN106330211 A CN 106330211A
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frequency band
lte
wifi
terminal equipment
function
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CN201610786125.0A
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CN106330211B (en
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丛明
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/005Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053Details 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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

The embodiment of the invention relates to the technical field of communication, and discloses an LTE frequency band selecting method and device. The method comprises the following steps: determining whether a terminal device needs to use a Wireless Fidelity WIFI function and a long term evolution LTE function at the same time; if so, acquiring an LTE frequency band set that is supported by the terminal device at present; and selecting a first frequency band away from the WIFI frequency band from the LTE frequency band set that is supported by the terminal device at present to transmit LTE data. Therefore, by implementation of the embodiment of the invention, adjacent frequency band interference in a use process of WIFI and LTE can be avoided, and thus the communication quality is guaranteed.

Description

LTE frequency band selection method and equipment
Technical Field
The invention relates to the technical field of communication, in particular to a method and equipment for selecting an LTE frequency band.
Background
With the development of communication technology, the application of LTE (Long Term Evolution) is more and more widespread, the LTE technology can be classified as 4G network technology, and in the early stage of LTE technology application, Voice call needs to be returned to a 2G or 3G network for performing, and Voice call using LTE is not made to be realistic until the appearance of Voice over LTE (Voice over LTE) technology. In addition to the LTE network, the terminal device often has a WIFI function, and the user can also access the WIFI network to realize data transmission. Generally, the frequency range of 2.4G WIFI is 2403 + 2481MHz, and since the frequency range of WIFI is relatively close to a partial frequency range of LTE, and the out-of-band rejection performed by a filter configured in a terminal device baseband is difficult to achieve a very ideal effect of controlling interference between adjacent frequency bands, if a user wants to use an LTE network for voice communication and simultaneously use the WIFI network for activities such as surfing the internet, two signals may interfere with each other to affect the quality of communication.
Disclosure of Invention
The embodiment of the invention provides a method and equipment for selecting an LTE frequency band, which can avoid adjacent frequency band interference generated in the using process of WIFI and LTE, thereby ensuring the communication quality.
The first aspect of the embodiment of the invention discloses a method for selecting an LTE frequency band, which comprises the following steps:
determining whether the terminal equipment needs to use a wireless fidelity (WIFI) function and a Long Term Evolution (LTE) function at the same time;
if so, acquiring an LTE frequency band set currently supported by the terminal equipment;
and selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal equipment to transmit LTE data.
The second aspect of the embodiments of the present invention discloses an LTE frequency band selection device, including:
the terminal equipment comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining whether the terminal equipment needs to use the wireless fidelity (WIFI) function and the Long Term Evolution (LTE) function at the same time;
the terminal equipment comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring an LTE frequency band set currently supported by the terminal equipment when the terminal equipment needs to use a WIFI function and an LTE function simultaneously;
and the selection unit is used for selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal equipment so as to carry out LTE data transmission.
A third aspect of the embodiments of the present invention discloses a terminal device, including: a processor and a memory, the processor being configured to perform the method disclosed in the first aspect above.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the invention, whether the terminal equipment needs to use the WIFI function and the LTE function at the same time is determined; if so, acquiring an LTE frequency band set currently supported by the terminal equipment; and selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal equipment to transmit LTE data. Therefore, by implementing the embodiment of the invention, the adjacent frequency band interference generated in the using process of WIFI and LTE can be avoided, thereby ensuring the communication quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of an LTE frequency band selection method disclosed in an embodiment of the present invention;
fig. 2 is a schematic flow chart of another LTE frequency band selection method disclosed in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of an LTE frequency band selection device disclosed in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of another LTE frequency band selection device disclosed in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal device disclosed in the embodiment of the present invention;
fig. 6 is a schematic structural diagram of another terminal device disclosed in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, or apparatus.
The embodiment of the invention provides a method and equipment for selecting an LTE frequency band, which can avoid adjacent frequency band interference generated in the using process of WIFI and LTE, thereby ensuring the communication quality. The following are detailed below.
Referring to fig. 1, fig. 1 is a flowchart illustrating an LTE frequency band selection method according to an embodiment of the present invention. The LTE frequency band selection method shown in fig. 1 may include the following steps:
101. determining whether the terminal equipment needs to use the wireless fidelity (WIFI) function and the Long Term Evolution (LTE) function at the same time.
In the embodiment of the present invention, the terminal device may be a smart phone, a smart watch, a palm computer, a tablet computer, a Personal Digital Assistant (PDA), a Point of Sales (POS), or the like, and the following description of the embodiment of the present invention will not be repeated.
In the embodiment of the invention, the terminal equipment has the WIFI function and can also realize data transmission or VoLTE voice service by utilizing an LTE network. Thus, the simultaneous use of the WIFI function and the LTE function may include two cases: in the first case, the terminal equipment utilizes LTE to carry out voice call and utilizes WIFI to carry out data transmission; or the terminal equipment converts the LTE signal into a WIFI signal so that the terminal equipment requiring WIFI signal access can perform data transmission by using the converted WIFI signal.
102. And if so, acquiring the LTE frequency band set currently supported by the terminal equipment.
In the embodiment of the invention, the LTE frequency band set currently supported by the terminal equipment is determined by the support capability of the radio frequency hardware of the terminal equipment and the LTE frequency band set supported by the operator currently registered by the terminal equipment. Therefore, as an optional implementation manner, the manner of acquiring the LTE frequency band set currently supported by the terminal device may be: acquiring a first frequency band set of LTE supported by an operator currently registered by the terminal equipment; acquiring a second frequency band set of LTE supported by radio frequency hardware of the terminal equipment; and determining the frequency bands included in the first frequency band set and the second frequency band set as an LTE frequency band set currently supported by the terminal equipment.
103. And selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal equipment to transmit LTE data.
According to the regulations of 3GPP organization, the frequency bands that can be covered by the WIFI service mainly include two frequency bands, namely, 2.4G frequency band and 5G frequency band, and the frequency band commonly used by the WIFI service at present is 2.4G frequency band, and the frequency range is 2403 plus 2481 MHz. In the available frequency band of LTE, the frequency range of the B40 frequency band is 2300-2400 MHz. WIFI is mainly applied to indoor occasions, and wireless network access services are provided for users by configuring Access Points (APs) at indoor reasonable positions. In the LTE service, the B40 frequency band is used as an supplement for enhancing the coverage of indoor signals on the basis of the original frequency band, and the application range thereof is also indoor distribution. As can be seen from the above-mentioned frequency ranges, there is no reasonable width inter-band partition between the upper band of the B40 frequency band and the lower band of the 2.4G frequency band of WIFI, and the application positions are both in the indoor environment, so in the actual user application scenario, the signals of the two bands are likely to generate inter-band interference, thereby reducing the communication quality.
Therefore, in the embodiment of the present invention, when the WIFI function and the LTE function need to be applied simultaneously, the B40 frequency band should be excluded from the LTE frequency band set currently supported by the terminal device, and another frequency band should be selected as the first frequency band for LTE data transmission.
As an optional implementation manner, if the operator network adopted by the terminal device is mobile, the LTE frequency set currently supported by the terminal device is: b38, B39, B40 and B41, excluding the B40 band, the terminal device may select the B38, B39 or B41 band as the first band for accessing.
As an optional implementation manner, if the operator network adopted by the terminal device is connected, the LTE frequency set currently supported by the terminal device is: b1, B3, B8, B40, and B41, excluding the B40 frequency band, and currently, the terminal device may select the B1, B3, B8, or B41 frequency band as the first frequency band for access.
As an optional implementation manner, if the operator network adopted by the terminal device is telecommunications, the current LTE frequency set supported by the terminal device is: b1, B3, B5, B40, and B41, excluding the B40 frequency band, and currently, the terminal device may select the B1, B3, B5, or B41 frequency band as the first frequency band for access.
Therefore, when the terminal device uses the WIFI function and the LTE function simultaneously, the method described in fig. 1 is implemented, and the LTE selects the first frequency band far from the WIFI frequency band to perform communication, so that inter-band interference between the WIFI signal and the LTE signal can be avoided, and thus the communication quality is improved.
Referring to fig. 2, fig. 2 is a flowchart illustrating another LTE frequency band selection method according to an embodiment of the present invention. As shown in fig. 2, the method may include the steps of:
201. determining whether the terminal equipment needs to use the wireless fidelity (WIFI) function and the Long Term Evolution (LTE) function at the same time.
In the embodiment of the present invention, the simultaneous use of the WIFI function and the LTE function may include two cases: in the first case, the terminal equipment utilizes LTE to carry out voice call and utilizes WIFI to carry out data transmission; or the terminal equipment converts the LTE signal into a WIFI signal so that the terminal equipment requiring WIFI signal access can perform data transmission by using the converted WIFI signal.
202. And if so, acquiring the LTE frequency band set currently supported by the terminal equipment.
As an optional implementation manner, the manner of obtaining the LTE frequency band set currently supported by the terminal device may be: acquiring a first frequency band set of LTE supported by an operator currently registered by the terminal equipment; acquiring a second frequency band set of LTE supported by radio frequency hardware of the terminal equipment; and determining the frequency bands included in the first frequency band set and the second frequency band set as an LTE frequency band set currently supported by the terminal equipment.
203. And selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal equipment to transmit LTE data.
At present, the frequency band commonly used for the WIFI service is 2.4G, and the frequency range is 2403 + 2481 MHz. In the available frequency band of LTE, the frequency range of the B40 frequency band is 2300-2400 MHz. As can be seen from the above-mentioned frequency ranges, there is no reasonable width inter-band partition between the upper band of the B40 frequency band and the lower band of the 2.4G frequency band of WIFI, and the application positions are both in the indoor environment, so in the actual user application scenario, the signals of the two bands are likely to generate inter-band interference, thereby reducing the communication quality. Therefore, LTE services should select a frequency band other than the B40 frequency band that the terminal device currently supports to conduct.
In addition, in the embodiment of the present invention, a historical network access record is prestored in the terminal device, and when a frequency band that has been accessed is searched, the frequency band that has been accessed is preferentially accessed. The frequency band is successfully accessed before, so that the frequency band has higher probability of being successfully accessed at this time, and the selection is favorable for improving the network access rate and reducing the time consumed by network search.
204. And monitoring whether interference exists between the WIFI function and the LTE function which are used simultaneously.
In the embodiment of the invention, whether interference exists between the WIFI function and the LTE function can be judged by monitoring the signal strength and the receiving sensitivity of the WIFI signal and the LTE signal.
205. And if so, filtering the radio frequency channel of the LTE function and/or the WIFI function through a bandwidth selection filter and/or a full-band filter.
In the embodiment of the invention, if the interference still exists between the WIFI function and the LTE function, the bandwidth of one party can be controlled by configuring the bandwidth selection filter or the full-band filter in the radio frequency channel according to the priority of the two functions, so that the communication quality of the other party is ensured.
As an optional implementation manner, if data transmission of the LTE function is preferentially guaranteed, the bandwidth selection filter is configured in the radio frequency channel of the WIFI function, and the full-band filter is configured in the radio frequency channel of the LTE function, so that bandwidth control is performed on the WIFI, and communication quality of LTE data transmission is guaranteed.
Therefore, when the terminal device uses the WIFI function and the LTE function simultaneously, the method described in fig. 2 is implemented, and the LTE selects the first frequency band far from the WIFI frequency band to perform communication, so that inter-band interference between the WIFI signal and the LTE signal can be avoided, and thus the communication quality is improved. In addition, by configuring the bandwidth selection filter and the full-band filter in the radio frequency channel with the WIFI function and the radio frequency channel with the LTE function respectively, the bandwidth of one party is controlled, and therefore the communication quality of the other party is ensured.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an LTE band selection device 100 according to an embodiment of the present invention. The LTE frequency band selection device may be a dedicated chip for implementing frequency band selection in the terminal device, an application program with a frequency band selection function, or an external control device independent of the terminal device, and the like, which implementation is specifically adopted is not limited in the embodiment of the present invention.
As shown in fig. 3, the LTE band selection device 100 may include:
a determining unit 301, configured to determine whether the terminal device needs to use the WIFI function and the LTE function at the same time.
An obtaining unit 302, configured to obtain an LTE frequency band set currently supported by a terminal device when the terminal device needs to use both the WIFI function and the LTE function.
The selecting unit 303 is configured to select a first frequency band far away from the WIFI frequency band from an LTE frequency band set currently supported by the terminal device to perform LTE data transmission.
According to the regulations of 3GPP organization, the frequency bands that can be covered by the WIFI service mainly include two frequency bands, namely, 2.4G frequency band and 5G frequency band, and the frequency band commonly used by the WIFI service at present is 2.4G frequency band, and the frequency range is 2403 plus 2481 MHz. In the available frequency band of LTE, the frequency range of the B40 frequency band is 2300-2400 MHz. WIFI is mainly applied to indoor occasions, and wireless network access services are provided for users by configuring Access Points (APs) at indoor reasonable positions. In the LTE service, the B40 frequency band is used as an supplement for enhancing the coverage of indoor signals on the basis of the original frequency band, and the application range thereof is also indoor distribution. As can be seen from the above-mentioned frequency ranges, there is no reasonable width inter-band partition between the upper band of the B40 frequency band and the lower band of the 2.4G frequency band of WIFI, and the application positions are both in the indoor environment, so in the actual user application scenario, the signals of the two bands are likely to generate inter-band interference, thereby reducing the communication quality.
Therefore, in the embodiment of the present invention, when the WIFI function and the LTE function need to be applied simultaneously, the selecting unit 303 should exclude the B40 frequency band from the LTE frequency band set currently supported by the terminal device, and select another frequency band as the first frequency band for LTE data transmission.
As an optional implementation manner, if the operator network adopted by the terminal device is mobile, the LTE frequency set currently supported by the terminal device is: b38, B39, B40 and B41, excluding the B40 band, the selecting unit 303 may select the B38, B39 or B41 band as the first band for accessing.
As an optional implementation manner, if the operator network adopted by the terminal device is connected, the LTE frequency set currently supported by the terminal device is: b1, B3, B8, B40 and B41, excluding the B40 band, the selecting unit 303 may select the B1, B3, B8 or B41 band as the first band for accessing.
As an optional implementation manner, if the operator network adopted by the terminal device is telecommunications, the current LTE frequency set supported by the terminal device is: b1, B3, B5, B40 and B41, excluding the B40 band, the selecting unit 303 may select the B1, B3, B5 or B41 band as the first band for accessing.
Therefore, with the LTE band selection device 100 described in fig. 3, when the terminal device uses the WIFI function and the LTE function simultaneously, by using the method that the LTE selects the first frequency band far from the WIFI frequency band for communication, the inter-band interference between the WIFI signal and the LTE signal can be avoided, so as to improve the communication quality.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another LTE band selection device 200 according to an embodiment of the present invention. Wherein, the apparatus 200 shown in fig. 4 is optimized by the apparatus 100 shown in fig. 3, and compared with the apparatus 100 shown in fig. 3, the apparatus 200 shown in fig. 4 further includes:
and a monitoring unit 304, configured to monitor whether there is interference between the WIFI function and the LTE function that are used simultaneously.
A filtering unit 305, configured to, when there is interference between the WIFI function and the LTE function, perform filtering processing on the radio frequency channel of the LTE function and/or the WIFI function through a bandwidth selection filter and/or a full-band filter.
As an optional implementation manner, if data transmission of the LTE function is preferentially guaranteed, the bandwidth selection filter is configured in the radio frequency channel of the WIFI function, and the full-band filter is configured in the radio frequency channel of the LTE function, so that bandwidth control is performed on the WIFI, and communication quality of LTE data transmission is guaranteed.
As an optional implementation manner, the obtaining unit 302 includes:
the first acquiring subunit 3021 is configured to acquire a first frequency band set of LTE supported by an operator currently registered by the terminal device.
The second obtaining subunit 3022 is configured to obtain a second frequency band set of the LTE supported by the radio frequency hardware of the terminal device.
A determining subunit 3023, configured to determine frequency bands included in both the first frequency band set and the second frequency band set as an LTE frequency band set currently supported by the terminal device.
Therefore, with the LTE band selection device 200 described in fig. 4, when the terminal device uses the WIFI function and the LTE function simultaneously, by using the method that the LTE selects the first frequency band far from the WIFI frequency band for communication, the inter-band interference between the WIFI signal and the LTE signal can be avoided, thereby improving the communication quality. In addition, by configuring the bandwidth selection filter and the full-band filter in the radio frequency channel with the WIFI function and the radio frequency channel with the LTE function respectively, the bandwidth of one party is controlled, and therefore the communication quality of the other party is ensured.
Referring to fig. 5, fig. 5 is a schematic view of a partial structure of a terminal device 1 according to an embodiment of the present invention. As shown in fig. 5, the terminal device 1 includes: a processor 501 and a memory 502; wherein the memory 502 can be used for the cache required by the processor 501 to execute data processing, and can also be used for providing a storage space for data called by the processor 501 to execute data processing and obtained result data.
In the embodiment of the present invention, the processor 501 is configured to execute the operations described in fig. 1 to 2 by calling the program code stored in the memory 502. For example, for performing:
determining whether the terminal device 1 needs to use the wireless fidelity (WIFI) function and the Long Term Evolution (LTE) function at the same time;
if yes, acquiring an LTE frequency band set currently supported by the terminal equipment 1;
a first frequency band far away from the WIFI frequency band is selected from the LTE frequency band set currently supported by the terminal device 1 for LTE data transmission.
As an alternative embodiment, the processor 501, by calling the program code stored in the memory 502, is further configured to perform the following operations:
monitoring whether interference exists between the WIFI function and the LTE function which are used simultaneously;
and if so, filtering the radio frequency channel of the LTE function and/or the WIFI function through a bandwidth selection filter and/or a full-band filter.
In the terminal device 1 illustrated in fig. 5, if the WIFI function and the LTE function are used simultaneously, by using a method in which LTE selects a first frequency band far from the WIFI frequency band for communication, inter-band interference between a WIFI signal and an LTE signal can be avoided, thereby improving communication quality. In addition, by configuring the bandwidth selection filter and the full-band filter in the radio frequency channel with the WIFI function and the radio frequency channel with the LTE function respectively, the bandwidth of one party is controlled, and therefore the communication quality of the other party is ensured.
Referring to fig. 6, fig. 6 is a schematic structural diagram of another terminal device 2 according to an embodiment of the present invention. As shown in fig. 6, for convenience of illustration, only the portion related to the embodiment of the present invention is shown, and details of the technique are not disclosed, please refer to the method portion of the embodiment of the present invention. The terminal device 2 may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal digital assistant), a POS (Point of Sales), a vehicle-mounted computer, and the like, taking the terminal as the mobile phone as an example:
fig. 6 is a block diagram illustrating a partial structure of the terminal device 2, which is provided in the embodiment of the present invention and takes a mobile phone as an example. Referring to fig. 6, the handset includes: a Radio Frequency (RF) circuit 601, a memory 602, an input unit 603, a display unit 604, a sensor 605, an audio circuit 606, a wireless fidelity (WiFi) module 607, a processor 608, and a power supply 609. Those skilled in the art will appreciate that the handset configuration shown in fig. 6 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 6:
the RF circuit 601 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information of a base station and then processes the received downlink information to the processor 608; in addition, the data for designing uplink is transmitted to the base station. In general, the RF circuit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 601 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to global system for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.
The memory 602 may be used to store software programs and modules, and the processor 608 executes various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 602. The memory 602 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 603 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 603 may include a touch panel 6031 and other input devices 6032. The touch panel 6031, also referred to as a touch screen, may collect touch operations of a user on or near the touch panel 6031 (e.g., operations of a user on or near the touch panel 6031 using any suitable object or accessory such as a finger, a stylus, etc.) and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 6031 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 608, and can receive and execute commands sent by the processor 608. In addition, the touch panel 6031 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 603 may include other input devices 6032 in addition to the touch panel 6031. In particular, other input devices 6032 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 604 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The display unit 604 may include a display panel 6041, and the display panel 6041 may be configured by using a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 6031 can cover the display panel 6041, and when the touch panel 6031 detects a touch operation on or near the touch panel 6031, the touch operation can be transmitted to the processor 608 to determine the type of the touch event, and then the processor 608 can provide a corresponding visual output on the display panel 6041 according to the type of the touch event. Although in fig. 6, the touch panel 6031 and the display panel 6041 are two separate components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 6031 and the display panel 6041 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 605, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 6041 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 6041 and/or the backlight when the mobile phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
Audio circuitry 606, speaker 6061, and microphone 6062 may provide an audio interface between the user and the handset. The audio circuit 606 may transmit the electrical signal converted from the received audio data to the speaker 6061, and convert the electrical signal into a sound signal by the speaker 6061 and output the sound signal; on the other hand, the microphone 6062 converts a collected sound signal into an electric signal, receives the electric signal by the audio circuit 606, converts the electric signal into audio data, and outputs the audio data to the processor 608 for processing, and then transmits the audio data to, for example, another cellular phone via the RF circuit 601, or outputs the audio data to the memory 602 for further processing.
WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 607, and provides wireless broadband internet access for the user. Although fig. 6 shows the WiFi module 607, it is understood that it does not belong to the essential constitution of the handset, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 608 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 602 and calling data stored in the memory 602, thereby performing overall monitoring of the mobile phone. Alternatively, processor 608 may include one or more processing units; preferably, the processor 608 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 608.
The handset also includes a power supply 609 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 608 via a power management system, such that the power management system may be used to manage charging, discharging, and power consumption.
Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.
In the foregoing embodiment, the method flows of the steps may be implemented based on the structure of the terminal device 2. Where both the application layer and the operating system kernel can be viewed as components of the abstract structure of processor 608.
In an embodiment of the present invention, the processor 608 is configured to perform the operations described in fig. 1-2 by calling the program code stored in the memory 602. For example, for performing:
determining whether the terminal device 2 needs to use the wireless fidelity (WIFI) function and the Long Term Evolution (LTE) function at the same time;
if yes, acquiring an LTE frequency band set currently supported by the terminal equipment 2;
a first frequency band far from the WIFI frequency band is selected from the LTE frequency band set currently supported by the terminal device 2 for LTE data transmission.
As an alternative embodiment, the processor 608, by calling the program code stored in the memory 602, is further configured to:
monitoring whether interference exists between the WIFI function and the LTE function which are used simultaneously;
and if so, filtering the radio frequency channel of the LTE function and/or the WIFI function through a bandwidth selection filter and/or a full-band filter.
In the terminal device 2 described in fig. 6, if the WIFI function and the LTE function are used simultaneously, by using a method in which LTE selects the first frequency band far from the WIFI frequency band for communication, inter-band interference between the WIFI signal and the LTE signal can be avoided, thereby improving communication quality. In addition, by configuring the bandwidth selection filter and the full-band filter in the radio frequency channel with the WIFI function and the radio frequency channel with the LTE function respectively, the bandwidth of one party is controlled, and therefore the communication quality of the other party is ensured.
It should be noted that, in the LTE band selection device and the terminal device embodiment, each included unit is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by related hardware, and the corresponding program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiment of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An LTE frequency band selection method is characterized by comprising the following steps:
determining whether the terminal equipment needs to use a wireless fidelity (WIFI) function and a Long Term Evolution (LTE) function at the same time;
if so, acquiring an LTE frequency band set currently supported by the terminal equipment;
and selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal equipment to transmit LTE data.
2. The method of claim 1, wherein the simultaneous use of WIFI and LTE functionalities comprises:
the terminal equipment utilizes LTE to carry out voice call and utilizes WIFI to carry out data transmission; or,
the terminal equipment converts the LTE signal into a WIFI signal so that the terminal equipment requiring WIFI signal access can perform data transmission by using the converted WIFI signal.
3. The method of claim 2, wherein the obtaining the current LTE frequency band set supported by the terminal device comprises:
acquiring a first frequency band set of LTE supported by an operator currently registered by the terminal equipment;
acquiring a second frequency band set of LTE supported by radio frequency hardware of the terminal equipment;
and determining the frequency bands included in the first frequency band set and the second frequency band set as the LTE frequency band set currently supported by the terminal equipment.
4. The method according to any one of claims 1 to 3, wherein the WIFI frequency band is a 2.4G frequency band, and the selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal device for LTE data transmission includes:
and selecting a frequency band except the B40 frequency band from the LTE frequency band set currently supported by the terminal equipment as the first frequency band for LTE data transmission.
5. The method of claim 4, wherein the selecting, as the first frequency band for LTE data transmission, a frequency band other than a B40 frequency band from the LTE frequency band set currently supported by the terminal device comprises:
and selecting a frequency band which is not the B40 frequency band and is accessed by the terminal equipment from the LTE frequency band set currently supported by the terminal equipment as the first frequency band for LTE data transmission.
6. An LTE frequency band selection device, comprising:
the terminal equipment comprises a determining unit, a judging unit and a judging unit, wherein the determining unit is used for determining whether the terminal equipment needs to use the wireless fidelity (WIFI) function and the Long Term Evolution (LTE) function at the same time;
the terminal equipment comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring an LTE frequency band set currently supported by the terminal equipment when the terminal equipment needs to use a WIFI function and an LTE function simultaneously;
and the selection unit is used for selecting a first frequency band far away from the WIFI frequency band from the LTE frequency band set currently supported by the terminal equipment so as to carry out LTE data transmission.
7. The apparatus of claim 6, wherein the simultaneous use of WIFI and LTE functionalities comprises:
the terminal equipment utilizes LTE to carry out voice call and utilizes WIFI to carry out data transmission; or,
the terminal equipment converts the LTE signal into a WIFI signal so that the terminal equipment requiring WIFI signal access can perform data transmission by using the converted WIFI signal.
8. The apparatus of claim 7, wherein the obtaining unit comprises:
a first obtaining subunit, configured to obtain a first frequency band set of LTE supported by an operator currently registered by the terminal device;
a second obtaining subunit, configured to obtain a second frequency band set of the LTE supported by radio frequency hardware of the terminal device;
a determining subunit, configured to determine frequency bands included in both the first frequency band set and the second frequency band set as an LTE frequency band set currently supported by the terminal device.
9. The device according to any one of claims 6 to 8, wherein the WIFI frequency band is a 2.4G frequency band, and the selecting unit is specifically configured to select a frequency band other than a B40 frequency band from an LTE frequency band set currently supported by the terminal device as the first frequency band for LTE data transmission.
10. A terminal device, comprising: processor and memory, characterized in that the processor is configured to perform the method of any of claims 1 to 5.
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