CN108901070B - Wireless communication transmission method, device, mobile terminal and computer readable storage medium - Google Patents
Wireless communication transmission method, device, mobile terminal and computer readable storage medium Download PDFInfo
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- CN108901070B CN108901070B CN201810603688.0A CN201810603688A CN108901070B CN 108901070 B CN108901070 B CN 108901070B CN 201810603688 A CN201810603688 A CN 201810603688A CN 108901070 B CN108901070 B CN 108901070B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses a wireless communication transmission method, a wireless communication transmission device, a mobile terminal and a computer readable storage medium, wherein the method comprises the following steps: acquiring frequency offset data of a mobile terminal; acquiring the minimum number of subcarriers used for data transmission at the current transmission rate; and selecting the least number of subcarriers from all subcarriers to carry out data transmission according to the frequency offset data. According to the method and the device, the frequency offset data of the mobile phone can be combined, the subcarrier frequencies used in different transmission scenes in wireless communication are optimized, the stability of data transmission is improved, and the user experience is improved.
Description
Technical Field
The present application relates to the field of mobile terminal technologies, and in particular, to a wireless communication transmission method and apparatus, a mobile terminal, and a computer-readable storage medium.
Background
At present, when different mobile phones leave a factory, the frequency of the mobile phones is calibrated, but after calibration, certain frequency deviation still exists at a board level, and the frequency deviation cannot be completely the same as a theoretical value. Certain frequency offset theoretically has no influence on wireless communication transmission, but the frequency offset increases the possibility of data analysis failure.
Disclosure of Invention
In view of the foregoing problems, the present application provides a wireless communication transmission method, apparatus, mobile terminal and computer readable storage medium to solve the foregoing problems.
In a first aspect, an embodiment of the present application provides a wireless communication transmission method, where the method includes: acquiring frequency offset data of a mobile terminal; acquiring the minimum number of subcarriers used for data transmission at the current transmission rate; and selecting the least number of subcarriers from all subcarriers for data transmission according to the frequency offset data.
In a second aspect, an embodiment of the present application provides a wireless communication transmission apparatus, including: the frequency offset module is used for acquiring frequency offset data of the mobile terminal; the quantity module is used for acquiring the minimum number of the subcarriers used for data transmission at the current transmission rate; and the transmission module is used for selecting the least number of subcarriers from all subcarriers to carry out data transmission according to the frequency offset data.
In a third aspect, an embodiment of the present application provides a mobile terminal, which includes a display, a memory, and a processor, where the display and the memory are coupled to the processor, and the memory stores instructions, and when the instructions are executed by the processor, the processor performs the method of the first aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having program code executable by a processor, where the program code causes the processor to execute the method of the first aspect.
According to the wireless communication transmission method, the wireless communication transmission device, the mobile terminal and the computer readable storage medium, frequency offset data of the mobile terminal are firstly obtained; then acquiring the minimum number of the sub-carriers used for data transmission at the current transmission rate; and finally, selecting the least number of subcarriers from all subcarriers according to the frequency offset data to carry out data transmission. Compared with the prior art, the method and the device have the advantages that the proper subcarriers can be dynamically selected for data transmission according to the current data transmission environment and by combining the inherent frequency offset data of the mobile terminal, subcarrier frequencies used in different transmission scenes in wireless communication are optimized, data transmission stability is improved, and user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flow chart illustrating a wireless communication transmission method according to a first embodiment of the present application;
fig. 2 is a flowchart illustrating a wireless communication transmission method according to a second embodiment of the present application;
fig. 3 shows a block diagram of a wireless communication transmission apparatus according to a third embodiment of the present application;
fig. 4 shows a block diagram of a wireless communication transmission apparatus according to a fourth embodiment of the present application;
fig. 5 shows a block diagram of a mobile terminal according to an embodiment of the present application;
fig. 6 shows a block diagram of a mobile terminal for performing a wireless communication transmission method according to an embodiment of the application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
At present, when different mobile phones leave a factory, the frequency of the mobile phones is calibrated, but after calibration, certain frequency deviation still exists at a board level, and the frequency deviation cannot be completely the same as a theoretical value. Certain frequency offset theoretically has no influence on wireless communication transmission, but the frequency offset increases the possibility of data analysis failure.
After studying the conventional wireless communication transmission strategy, the inventors found that, when data transmission is performed by using a certain bandwidth (for example, 20M), the conventional mobile terminal distributes data to be transmitted to each subcarrier within the 20M bandwidth for transmission, the number of subcarriers used for transmission is constant, and all subcarriers are used by default and some subcarriers are not selected for use no matter what transmission is performed. Due to the existence of board-level inherent frequency offset in the mobile terminal, when frequency deviation between a part of subcarriers and the overall frequency of the mobile terminal is large in all subcarriers used for data transmission, analysis failure and retransmission of data transmitted on the part of subcarriers are easily caused, which reflects that data transmission is unstable in the user experience, for example, video watching is easily jammed, and a webpage cannot be opened for a long time.
In order to solve the above problems, the inventor researches how to improve an existing wireless communication transmission mechanism to enable a mobile terminal to avoid unstable data transmission due to inherent frequency offset, and how to optimize dynamic selection of subcarriers for data transmission according to different data transmission environments, and proposes a wireless communication transmission method, an apparatus, a mobile terminal, and a computer-readable storage medium in the embodiments of the present application.
The following describes in detail a wireless communication transmission method, a wireless communication transmission apparatus, a mobile terminal, and a storage medium according to embodiments of the present application.
First embodiment
Referring to fig. 1, fig. 1 is a flowchart illustrating a wireless communication transmission method according to a first embodiment of the present application. The wireless communication transmission method comprises the steps of firstly obtaining frequency offset data of a mobile terminal, then obtaining the minimum number of subcarriers used for data transmission at the current transmission rate, and finally selecting the minimum number of subcarriers from all subcarriers for data transmission according to the frequency offset data. In a specific embodiment, the wireless communication transmission method may be applied to the wireless communication transmission apparatus 300 shown in fig. 3 and the mobile terminal 100 (fig. 5) configured with the wireless communication transmission apparatus 300, and is used for improving the experience of the user in wireless communication transmission using the mobile terminal. The following will use a mobile phone as an example to describe the flow shown in fig. 1 in detail. The above wireless communication transmission method may specifically include the steps of:
step S101: and acquiring frequency offset data of the mobile terminal.
In this embodiment, the frequency offset data of the mobile terminal may represent a frequency offset value of the mobile terminal. The frequency in the frequency offset data refers to a wireless communication transmission frequency of the mobile terminal, which may represent a carrier frequency transmitted by the mobile terminal during wireless communication transmission.
It can be understood that the frequency offset data is a deviation value between an actual frequency and a theoretical frequency of a carrier wave transmitted by the mobile terminal during wireless communication transmission. Since the frequency of the mobile terminal is calibrated when the mobile terminal leaves the factory, after calibration, a certain frequency deviation still exists, the frequency deviation is a natural frequency deviation (also called board-level frequency deviation) determined by a circuit of the mobile terminal, and the frequency deviation causes that an actual carrier frequency transmitted by the mobile terminal cannot be completely consistent with a theoretical value.
For example, when the frequency offset data is "-5Hz", it indicates that the overall frequency of the mobile terminal is 5Hz towards low frequency; and when the frequency offset data is +2Hz, indicating that the overall frequency of the mobile terminal is biased to 2Hz.
Step S102: and acquiring the minimum number of the sub-carriers used for data transmission at the current transmission rate.
In this embodiment, different transmission rates may correspond to different data transmission modes, such as a high-rate wireless communication transmission mode for MCS7 (corresponding to a wireless communication transmission rate of 65.0 Mb/s), and a low-rate wireless communication transmission mode for MCS2 (corresponding to a wireless communication transmission rate of 19.5 Mb/s). The MCS (Modulation and Coding Scheme, modulation and Coding strategy) is a transmission mode number under the 802.11n communication transmission protocol, different numbers represent different Modulation and Coding modes, and different Modulation modes correspond to different rates. For example, when the mobile terminal is in communication connection with the wireless network, the size of the transmission rate required for data transmission in connection with the current network may be checked first, and the number of subcarriers that need to be used at least on the premise of the transmission rate may be calculated. By one approach, the current transmission rate may refer to the current data transmission mode.
Taking Wi-Fi communication transmission in a 2.4GHz band under an 802.11n protocol as an example, when a mobile terminal performs wireless communication transmission in the band, 13 subcarriers are provided, the frequency bands of the subcarriers are distributed between 2.412 and 2.472GHz, the frequency interval between two adjacent subcarriers is 5MHz, and according to the size (or transmission mode) of a transmission rate required by data transmission with a current network, the minimum number of subcarriers meeting the data transmission requirement can be selected for data transmission. For example, when the current transmission rate is a high rate (the transmission mode may be MCS 7), if the amount of data to be transmitted in the same time period is large, multiple subcarriers are required to perform data transmission simultaneously, for example, at least 9 subcarriers are required to perform data transmission, and then the minimum number of the subcarriers used for data transmission may be 9 at this time; if the current transmission rate is a low rate (the transmission mode may be MCS 2), the amount of data to be transmitted in the same time period is small, and a small number of subcarriers are used to meet the requirement of data transmission, for example, at least 4 subcarriers are needed for data transmission, and then the minimum number of subcarriers used for data transmission may be 4.
In this embodiment, the network to which the mobile terminal connects and performs data transmission may be a route or a wireless Access Point (Access Point), which may be used as a wireless network signal source in a wireless communication area, and each hotspot (or wireless Access Point) corresponds to a wireless network and may be used for a wireless communication device, for example, the mobile terminal in this embodiment to connect, so that the mobile terminal connects to the network and performs data transmission. The network may be a Wi-Fi network, a 4G network, or other type of wireless communication network. In this embodiment, a Wi-Fi network is taken as an example for description.
Step S103: and selecting the least number of subcarriers from all subcarriers for data transmission according to the frequency offset data.
In this embodiment, by combining the frequency offset data of the mobile terminal, the minimum number of subcarriers that satisfy the data transmission requirement may be selected from all subcarriers to perform data transmission.
As a mode, when the frequency offset data is offset to a low frequency, the minimum number of subcarriers biased to a high frequency part in a bandwidth may be selected for data transmission; when the frequency offset data is offset towards high frequency, the least number of subcarriers deviated to the low frequency part in the bandwidth can be selected for data transmission.
Taking Wi-Fi communication transmission in 2.4GHz band under 802.11n protocol as an example, when the frequency offset data of the mobile terminal is "-5Hz" and the current transmission rate is a low rate (e.g., MCS 2), 4 subcarriers with center frequencies between 2.442 and 2.472GHz, for example, 4 subcarriers of 2.472GHz, 2.467GHz, 2.462GHz, and 2.457GHz, may be selected for data transmission; when the frequency offset data of the mobile terminal is "+10Hz" and the current transmission rate is a low rate (e.g., MCS 2), 4 subcarriers with center frequencies between 2.412 and 2.442GHz, e.g., 4 subcarriers of 2.412GHz, 2.417GHz, 2.422GHz, and 2.427GHz, may be selected for data transmission.
It can be understood that, in this embodiment, by selecting a part of subcarriers in a direction opposite to the frequency offset direction of the frequency offset data of the mobile terminal to perform data transmission, the problems of unstable data transmission, analysis failure, high retransmission rate and the like caused by the natural frequency deviation can be solved.
According to the wireless communication transmission method provided by the first embodiment of the application, the proper subcarriers can be dynamically selected for data transmission by combining the inherent frequency offset data of the mobile terminal according to the current data transmission environment, so that the subcarrier frequencies used in different transmission scenes in wireless communication are optimized, the stability of data transmission is improved, and the user experience is promoted.
Second embodiment
Referring to fig. 2, fig. 2 is a flowchart illustrating a wireless communication transmission method according to a second embodiment of the present application. The following will describe the flow shown in fig. 2 in detail by taking a mobile phone as an example. The above wireless communication transmission method may specifically include the steps of:
step S201: and acquiring frequency offset data of the mobile terminal.
In this embodiment, the frequency offset data may be tested before the mobile terminal leaves the factory, and the determined frequency offset data of the mobile terminal is stored in a memory of the mobile terminal, so as to call the frequency offset data when needed in wireless communication.
Step S202: and acquiring the identity information of the current network connected with the mobile terminal.
In this embodiment, the current network to which the mobile terminal is connected may be a wireless network signal source in a wireless communication area, and each wireless access point (or hotspot) corresponds to a wireless network, which is available for a wireless communication device, for example, the mobile terminal in this embodiment, to connect to, so that the mobile terminal is connected to the current network. The current network may be a Wi-Fi network, a 4G network, or other type of wireless communication network. In the present embodiment, a Wi-Fi network is taken as an example for description.
In this embodiment, after it is determined that the mobile terminal establishes a connection with the current network, the identity information of the current network may be acquired from the current network. It will be appreciated that each current network corresponds to a unique piece of identity information.
In this embodiment, the identity information of the current network may include parameters such as an address (IP address or hardware code, etc.) of the current network, signal strength, and signal stability.
In this embodiment, when the mobile terminal performs wireless communication, the transmission rate that meets the current transmission requirement may be determined by the identity information (address) of the wireless network to which the mobile terminal is currently connected (the address of the unlimited network corresponds to the traffic transmission requirement); or is determined by currently opened software in the system of the mobile terminal (for example, if the video software is currently opened, the current traffic transmission requirement is determined according to the video data size of the current video page); or the user manually inputs the data volume currently required to be transmitted (for example, the user may input the data volume required to be transmitted this time on a human-computer interaction interface of the mobile terminal, which may be implemented by a functional module built in the mobile terminal system, such as a mobile phone software application).
Step S203: and acquiring the current transmission data volume based on the identity information.
In this embodiment, the current transmission data volume may be estimated according to historical data of connection between the mobile terminal and the current network. For example, the historical internet surfing data volume of the mobile terminal connected with the current network can be obtained by searching the identity information of the current network in historical data. As a manner, the estimated current transmission data volume may be an average internet data volume generated when the mobile terminal connects to the current network each time.
As a mode, after the mobile terminal is connected to a current network and acquires identity information of the current network, historical internet access data (stored in a local or cloud of the mobile terminal) of the mobile terminal and the current network, which is previously connected to the current network, may be called, where the historical internet access data may be internet access data generated when the mobile terminal is connected to the current network, and may include, for example, a time period during which the mobile terminal is connected to the current network, a traffic data volume generated in the time period, an average transmission rate or a transmission rate with the longest stable time in the time period, or other data. And quickly positioning the current flow transmission requirement of the mobile terminal corresponding to the current network according to the historical internet surfing data of the connection between the mobile terminal and the current network.
For example, after acquiring the identity information of the current network, the mobile terminal searches in local historical data, and finds that most of the historical data connected to the current network is the transmission of large data traffic, and at this time, the current network may be relatively associated with the traffic transmission requirement of "data transmission requiring large traffic", that is, "data transmission requiring large traffic" may be used as the current traffic transmission requirement.
Step S204: and constructing a first comparison table of the transmission data volume of the mobile terminal and the transmission rate meeting the transmission data volume.
In this embodiment, the first lookup table may be a form in which the transmission data amount of the mobile terminal corresponds to the transmission rate satisfying the transmission data amount one to one, or may be a form in which the transmission data amount corresponds to the transmission rate satisfying the transmission data amount one to many. In other possible schemes, the first comparison table may further be associated with other influencing factors, such as a transmission time period, a network signal strength, a network address, and the like, which jointly determine a transmission rate that meets the requirement corresponding to the transmission data amount.
Step S205: and searching the current transmission rate meeting the current transmission data volume in the first comparison table.
In this embodiment, after the first lookup table is constructed, the current transmission data size may be looked up in the first lookup table, and the current transmission rate meeting the data transmission requirement corresponding to the current transmission data size is obtained.
Step S206: and constructing a second comparison table of the transmission rate of the mobile terminal and the minimum number of the sub-carriers used for data transmission at the transmission rate.
Similarly to step S204, the second comparison table may be in the form of a one-to-one correspondence between the transmission rate of the mobile terminal and the minimum number of subcarriers used for data transmission at the transmission rate.
Step S207: looking up in the second comparison table the minimum number of sub-carriers used for data transmission at the current transmission rate.
In this embodiment, after the second lookup table is constructed, the current transmission rate may be looked up in the second lookup table, and the minimum number of subcarriers used for data transmission corresponding to the current transmission rate is obtained.
Step S208: and judging whether the transmission frequency of the mobile terminal is shifted to high frequency or not based on the frequency offset data.
In this embodiment, when the transmission frequency of the mobile terminal shifts to a high frequency, step S209 may be executed; when the transmission frequency of the mobile terminal is shifted to a low frequency, step S210 may be performed.
Step S209: and selecting the least number of subcarriers of the low-frequency part from all subcarriers in the preset bandwidth for data transmission.
Step S210: and selecting the least number of subcarriers of the high-frequency part from all subcarriers in the preset bandwidth for data transmission.
In this embodiment, the preset bandwidth may be a bandwidth used for data transmission when the mobile terminal is in communication connection with a current network. For example, for Wi-Fi communication transmission in a 2.4GHz band under an 802.11n protocol, when the mobile terminal performs wireless communication transmission in the band, there are 13 subcarriers whose transmission bands are distributed between 2.412 and 2.472GHz, and at this time, the preset bandwidth is 60MHz between 2.412 and 2.472 GHz.
In this embodiment, after step S209 or step S210, step S211 may be further performed.
Step S211: and obtaining a custom instruction for self-defining the number of the subcarriers.
In this embodiment, the user-defined instruction may be an instruction issued by a user on a human-computer interaction interface of the mobile terminal, and the user-defined instruction may reflect a requirement that the user defines the number of subcarriers currently used for data transmission.
Step S212: and reconfiguring the number of the sub-carriers for data transmission based on the self-defining instruction.
In this embodiment, after the mobile terminal generates the custom instruction in response to the user operation, the number of subcarriers used for data transmission may be reconfigured according to the user requirement in the custom instruction. At this time, the number of subcarriers selected from all subcarriers within the preset bandwidth is changed to the number included in the custom instruction.
Compared with the first embodiment of the application, the wireless communication transmission method provided by the second embodiment of the application can flexibly and dynamically adjust the subcarriers used for data transmission according to the user preference or the change of the use habit, so that the application of the scheme is more intelligent and humanized, and the user experience is further improved.
Third embodiment
Referring to fig. 3, fig. 3 is a block diagram of a wireless communication transmission apparatus 300 according to a third embodiment of the present application. As will be explained below with respect to the block diagram shown in fig. 3, the wireless communication transmission apparatus 300 includes: a frequency offset module 310, a quantity module 320, and a transmission module 330, wherein:
a frequency offset module 310, configured to obtain frequency offset data of the mobile terminal;
a quantity module 320, configured to obtain a minimum number of subcarriers used for data transmission at a current transmission rate;
a transmission module 330, configured to select the least number of subcarriers from all subcarriers for data transmission according to the frequency offset data.
The wireless communication transmission device provided by the third embodiment of the application can dynamically select a proper subcarrier for data transmission by combining the inherent frequency offset data of the mobile terminal according to the current data transmission environment, so that subcarrier frequencies used in different transmission scenes in wireless communication are optimized, the stability of data transmission is improved, and the user experience is promoted.
Fourth embodiment
Referring to fig. 4, fig. 4 is a block diagram illustrating a wireless communication transmission apparatus 400 according to a fourth embodiment of the present application. As will be explained below with respect to the block diagram shown in fig. 4, the wireless communication transmission apparatus 400 includes: a frequency offset module 410, a quantity module 420, a transmission module 430, a first self-defined module 440, and a second self-defined module 450, wherein:
a frequency offset module 410, configured to obtain frequency offset data of the mobile terminal.
A quantity module 420, configured to obtain a minimum number of subcarriers used for data transmission at the current transmission rate. Further, the quantity module 420 includes: a rate unit 421 and a quantity unit 422, wherein:
a rate unit 421, configured to obtain a current transmission rate that meets a current transmission data size when the mobile terminal performs wireless communication. Further, the rate unit 421 includes: an identity subunit, a data quantum unit, and a rate subunit, wherein:
and the identity subunit is used for acquiring the identity information of the current network connected with the mobile terminal.
And the data quantum unit is used for acquiring the current transmission data volume based on the identity information.
And the rate subunit is used for acquiring the current transmission rate meeting the current transmission data volume. Further, the rate subunit includes: a first building subunit and a first lookup subunit, wherein:
and the first construction subunit is used for constructing a first comparison table of the transmission data volume of the mobile terminal and the transmission rate meeting the transmission data volume.
And the first searching subunit is used for searching the current transmission rate meeting the current transmission data volume in the first comparison table.
A quantity unit 422, configured to obtain a minimum number of subcarriers used for data transmission at the current transmission rate. Further, the quantity unit 422 includes: a second building subunit and a second finding subunit, wherein:
and the second construction subunit is used for constructing a second comparison table of the transmission rate of the mobile terminal and the minimum number of the sub-carriers used for data transmission at the transmission rate.
And the second searching subunit is used for searching the second comparison table for the minimum number of the subcarriers used for data transmission at the current transmission rate.
A transmission module 430, configured to select the least number of subcarriers from all subcarriers for data transmission according to the frequency offset data. Further, the transmission module 430 includes: a determination unit 431, a high frequency unit 432, and a low frequency unit 433, wherein:
a determining unit 431, configured to determine whether the transmission frequency of the mobile terminal is shifted towards a high frequency based on the frequency offset data.
A high frequency unit 432, configured to select the minimum number of subcarriers of the low frequency part from all subcarriers within a preset bandwidth for data transmission when the transmission frequency of the mobile terminal shifts to a high frequency.
A low frequency unit 433, configured to select the minimum number of subcarriers of the high frequency part from all subcarriers within a preset bandwidth to perform data transmission when the transmission frequency of the mobile terminal shifts to a low frequency.
The first self-defining module 440 is configured to obtain a self-defining instruction for self-defining the number of subcarriers.
A second self-defined module 450, configured to reconfigure the number of subcarriers used for data transmission based on the self-defined instruction.
Compared with the third embodiment of the present application, the wireless communication transmission device provided in the fourth embodiment of the present application can flexibly and dynamically adjust the subcarriers used for data transmission according to the user preference or the change of the use habit, so that the application of the scheme is more intelligent and humanized, and the user experience is further improved.
Fifth embodiment
A fifth embodiment of the present application provides a mobile terminal comprising a display, a memory, and a processor, the display and the memory coupled to the processor, the memory storing instructions that, when executed by the processor, perform:
acquiring frequency offset data of a mobile terminal;
acquiring the minimum number of subcarriers used for data transmission at the current transmission rate;
and selecting the least number of subcarriers from all subcarriers to carry out data transmission according to the frequency offset data.
Sixth embodiment
A sixth embodiment of the present application provides a computer-readable storage medium having program code executable by a processor, the program code causing the processor to perform:
acquiring frequency offset data of a mobile terminal;
acquiring the minimum number of subcarriers used for data transmission at the current transmission rate;
and selecting the least number of subcarriers from all subcarriers for data transmission according to the frequency offset data.
To sum up, the wireless communication transmission method, the wireless communication transmission device, the mobile terminal and the computer readable storage medium provided by the embodiment of the present application first obtain frequency offset data of the mobile terminal; then acquiring the minimum number of subcarriers used for data transmission at the current transmission rate; and finally, selecting the least number of subcarriers from all subcarriers according to the frequency offset data to carry out data transmission. Compared with the prior art, the method and the device have the advantages that the proper subcarriers can be dynamically selected for data transmission according to the current data transmission environment and by combining the inherent frequency offset data of the mobile terminal, subcarrier frequencies used in different transmission scenes in wireless communication are optimized, data transmission stability is improved, and user experience is improved.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment. For any processing manner described in the method embodiment, all the processing manners may be implemented by corresponding processing modules in the apparatus embodiment, and details in the apparatus embodiment are not described again.
Referring to fig. 5, based on the above wireless communication transmission method and apparatus, an embodiment of the present invention further provides a mobile terminal 100, which includes an electronic body 10, where the electronic body 10 includes a housing 12 and a main display 120 disposed on the housing 12. The housing 12 may be made of metal, such as steel or aluminum alloy. In this embodiment, the main display 120 generally includes a display panel 111, and may also include a circuit or the like for responding to a touch operation performed on the display panel 111. The Display panel 111 may be a Liquid Crystal Display (LCD) panel, and in some embodiments, the Display panel 111 is a touch screen 109.
Referring to fig. 6, in an actual application scenario, the mobile terminal 100 may be used as a smart phone terminal, in which case the electronic body 10 generally further includes one or more processors 102 (only one is shown in the figure), a memory 104, an RF (Radio Frequency) module 106, an audio circuit 110, a sensor 114, an input module 118, and a power module 122. It will be understood by those skilled in the art that the structure shown in fig. 5 is merely illustrative and is not intended to limit the structure of the electronic body 10. For example, the electronics body section 10 may also include more or fewer components than shown in FIG. 5, or have a different configuration than shown in FIG. 5.
Those skilled in the art will appreciate that all other components are peripheral devices with respect to the processor 102, and the processor 102 is coupled to the peripheral devices through a plurality of peripheral interfaces 124. The peripheral interface 124 may be implemented based on the following criteria: universal Asynchronous Receiver/Transmitter (UART), general Purpose Input/Output (GPIO), serial Peripheral Interface (SPI), inter-Integrated Circuit (I2C), but is not limited to the above standards. In some examples, the peripheral interface 124 may comprise only a bus; in other examples, the peripheral interface 124 may also include other elements, such as one or more controllers, for example, a display controller for interfacing with the display panel 111 or a memory controller for interfacing with a memory. These controllers may also be separate from the peripheral interface 124 and integrated within the processor 102 or a corresponding peripheral.
The memory 104 may be used to store software programs and modules, and the processor 102 executes various functional applications and data processing by operating the software programs and modules stored in the memory 104. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the electronic body portion 10 or the primary display 120 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The RF module 106 is configured to receive and transmit electromagnetic waves, and achieve interconversion between the electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices. The RF module 106 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and so forth. The RF module 106 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices via a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network may use various Communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), enhanced Data GSM Environment (EDGE), wideband Code division multiple Access (W-CDMA), code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), wireless Fidelity (WiFi) (e.g., IEEE802.11 a, IEEE802.11 b, IEEE802.11g and/or IEEE802.11 n), voice over internet protocol (VoP), world wide for internet, wi-Max, and any other suitable protocols for instant messaging, including any other protocols not currently developed.
The audio circuitry 110, the earpiece 101, the sound jack 103, and the microphone 105 collectively provide an audio interface between a user and the electronic body portion 10 or the main display screen 120. Specifically, the audio circuit 110 receives sound data from the processor 102, converts the sound data into an electrical signal, and transmits the electrical signal to the earpiece 101. The earpiece 101 converts the electrical signal into sound waves that can be heard by the human ear. The audio circuitry 110 also receives electrical signals from the microphone 105, converts the electrical signals to sound data, and transmits the sound data to the processor 102 for further processing. Audio data may be retrieved from the memory 104 or through the RF module 106. In addition, audio data may also be stored in the memory 104 or transmitted through the RF module 106.
The sensor 114 is disposed in the electronic body portion 10 or the main display 120, examples of the sensor 114 include, but are not limited to: light sensors, operational sensors, pressure sensors, gravitational acceleration sensors, and other sensors.
Specifically, the light sensors may include a light sensor 114F, a pressure sensor 114G. Among them, the pressure sensor 114G may detect a pressure generated by pressing on the mobile terminal 100. That is, the pressure sensor 114G detects pressure generated by contact or pressing between the user and the mobile terminal, for example, contact or pressing between the user's ear and the mobile terminal. Accordingly, the pressure sensor 114G may be used to determine whether contact or pressing has occurred between the user and the mobile terminal 100, as well as the magnitude of the pressure.
Referring to fig. 5 again, in the embodiment shown in fig. 5, the light sensor 114F and the pressure sensor 114G are disposed adjacent to the display panel 111. The light sensor 114F may turn off the display output when an object is near the main display 120, for example, when the electronic body portion 10 moves to the ear.
As one of the motion sensors, the acceleration sensor may detect acceleration in various directions (generally three axes), detect the gravity when stationary, and may be used for applications (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like, for recognizing the posture of the mobile terminal 100. In addition, the electronic body 10 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer and a thermometer, which are not described herein,
in this embodiment, the input module 118 may include the touch screen 109 disposed on the main display 120, and the touch screen 109 may collect touch operations of the user (for example, operations of the user on or near the touch screen 109 using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a preset program. Optionally, the touch screen 109 may include 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 detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 102, and can receive and execute commands sent by the processor 102. In addition, the touch detection function of the touch screen 109 may be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch screen 109, in other variations, the input module 118 may include other input devices, such as keys 107. The keys 107 may include, for example, character keys for inputting characters, and control keys for activating control functions. Examples of such control keys include a "back to home" key, a power on/off key, and the like.
The main display 120 is used to display information input by a user, information provided to the user, and various graphic user interfaces of the electronic body section 10, which may be composed of graphics, text, icons, numbers, video, and any combination thereof, and in one example, the touch screen 109 may be provided on the display panel 111 so as to be integrated with the display panel 111.
The power module 122 is used to provide power supply to the processor 102 and other components. Specifically, the power module 122 may include a power management system, one or more power sources (e.g., batteries or ac power), a charging circuit, a power failure detection circuit, an inverter, a power status indicator light, and any other components associated with the generation, management, and distribution of power within the electronic body portion 10 or the primary display 120.
The mobile terminal 100 further comprises a locator 119, the locator 119 being configured to determine an actual location of the mobile terminal 100. In this embodiment, the locator 119 implements the positioning of the mobile terminal 100 by using a positioning service, which is understood to be a technology or a service for obtaining the position information (e.g., longitude and latitude coordinates) of the mobile terminal 100 by using a specific positioning technology and marking the position of the positioned object on an electronic map.
It should be understood that the mobile terminal 100 described above is not limited to a smartphone terminal, but it should refer to a computer device that can be used in mobility. Specifically, the mobile terminal 100 refers to a mobile computer device equipped with an intelligent operating system, and the mobile terminal 100 includes, but is not limited to, a smart phone, a smart watch, a tablet computer, and the like.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (mobile terminal) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments. In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (9)
1. A method of wireless communication transmission, the method comprising:
acquiring frequency offset data of a mobile terminal;
acquiring the minimum number of subcarriers used for data transmission at the current transmission rate;
judging whether the transmission frequency of the mobile terminal shifts to a high frequency or not based on the frequency offset data;
when the transmission frequency of the mobile terminal shifts to a high frequency, selecting the least number of subcarriers of a low frequency part from all subcarriers in a preset bandwidth for data transmission;
and when the transmission frequency of the mobile terminal shifts to the low frequency, selecting the least number of subcarriers of the high frequency part from all subcarriers in the preset bandwidth for data transmission.
2. The method of claim 1, wherein obtaining the minimum number of subcarriers used for data transmission at the current transmission rate comprises:
when the mobile terminal carries out wireless communication, acquiring a current transmission rate meeting the current transmission data volume;
and acquiring the minimum number of the sub-carriers used for data transmission at the current transmission rate.
3. The method according to claim 2, wherein obtaining a current transmission rate satisfying a current transmission data amount when the mobile terminal performs wireless communication comprises:
acquiring identity information of a current network connected with the mobile terminal;
acquiring the current transmission data volume based on the identity information;
and acquiring the current transmission rate meeting the current transmission data volume.
4. The method of claim 3, wherein obtaining a current transmission rate that satisfies the current amount of data to be transmitted comprises:
constructing a first comparison table of the transmission data volume of the mobile terminal and the transmission rate meeting the transmission data volume;
and searching the current transmission rate meeting the current transmission data volume in the first comparison table.
5. The method of claim 2, wherein obtaining the minimum number of subcarriers used for data transmission at the current transmission rate comprises:
constructing a second comparison table of the transmission rate of the mobile terminal and the minimum number of subcarriers used for data transmission at the transmission rate;
looking up in the second comparison table the minimum number of sub-carriers used for data transmission at the current transmission rate.
6. The method of claim 1, further comprising:
obtaining a self-defining instruction for self-defining the number of subcarriers;
and reconfiguring the number of the sub-carriers used for data transmission based on the custom instruction.
7. A wireless communication transmission apparatus, the apparatus comprising:
the frequency offset module is used for acquiring frequency offset data of the mobile terminal;
the quantity module is used for acquiring the minimum number of the subcarriers used for data transmission at the current transmission rate;
a transmission module, configured to select the at least number of subcarriers from all subcarriers for data transmission according to the frequency offset data;
the transmission module comprises a judgment unit, a high-frequency unit and a low-frequency unit;
the judging unit is used for judging whether the transmission frequency of the mobile terminal shifts to a high frequency or not based on the frequency offset data;
the high-frequency unit is used for selecting the least number of subcarriers of the low-frequency part from all subcarriers in a preset bandwidth to carry out data transmission when the transmission frequency of the mobile terminal shifts to high frequency;
and the low-frequency unit is used for selecting the least number of subcarriers of the high-frequency part from all subcarriers in a preset bandwidth to carry out data transmission when the transmission frequency of the mobile terminal shifts to the low frequency.
8. A mobile terminal comprising a display, a memory, and a processor, the display and the memory coupled to the processor, the memory storing instructions that, when executed by the processor, the processor performs the method of any of claims 1-6.
9. A computer-readable storage medium having program code executable by a processor, the program code causing the processor to perform the method of any of claims 1-6.
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| KR100354338B1 (en) * | 2000-10-17 | 2002-09-28 | 광주과학기술원 | Method for evaluating and configuring orthogonal frequency division multiplexing system having frequency offset |
| US7346135B1 (en) * | 2002-02-13 | 2008-03-18 | Marvell International, Ltd. | Compensation for residual frequency offset, phase noise and sampling phase offset in wireless networks |
| CN101110802B (en) * | 2006-07-18 | 2011-10-19 | 展讯通信（上海）有限公司 | Method for amending frequency cumulative error of non-center communication system terminal |
| US8259828B2 (en) * | 2008-02-12 | 2012-09-04 | Mediatek Inc. | Sub-carrier alignment mechanism for OFDM multi-carrier systems |
| US8040790B2 (en) * | 2008-08-29 | 2011-10-18 | Indian Institute Of Technology | Low complexity bandwidth efficient carrier frequency offset estimation technique for OFDMA uplink transmissions |
| CN102014097B (en) * | 2009-09-04 | 2014-04-09 | 中兴通讯股份有限公司 | Receiving terminal as well as fast frequency offset estimation device and method |
| CN102594740B (en) * | 2011-01-11 | 2015-04-01 | 中兴通讯股份有限公司 | Method and device for estimating frequency offset |
| CN104956634B (en) * | 2014-01-26 | 2018-06-19 | 山东金佳园科技股份有限公司 | Data transmission method, device and system |
| CN106330804B (en) * | 2016-08-24 | 2019-08-09 | 重庆大学 | A kind of carrier synchronization method and device |
| DE112017004253T5 (en) * | 2016-09-30 | 2019-05-16 | Intel Corporation | DEFINITION OF A PHYSICAL RESOURCE BLOCK (PRB) WITH SCALABLE SUBSTRATE DISTANCE |
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