CN114727352A

CN114727352A - Information transmission method and device, storage medium and electronic equipment

Info

Publication number: CN114727352A
Application number: CN202210365385.6A
Authority: CN
Inventors: 王涛; 刘鹏午; 朱凌; 王娜
Original assignee: Nanjing Dayu Semiconductor Co ltd
Current assignee: Nanjing Dayu Semiconductor Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-07-08

Abstract

The disclosure relates to a method, a device, a storage medium and an electronic device for information transmission, relating to the technical field of electronic information, wherein the method comprises the following steps: and receiving the transmission information sent by the second terminal on the receiving frequency point, and determining the signal-to-noise ratio corresponding to the receiving frequency point according to the transmission information. Under the condition that the signal-to-noise ratio corresponding to the receiving frequency points meets the preset switching condition, the target frequency points are determined in the to-be-switched frequency point set, the to-be-switched frequency point set comprises a first number of to-be-switched frequency points and the recorded signal-to-noise ratio corresponding to each to-be-switched frequency point, and the receiving frequency points belong to the to-be-switched frequency point set. And updating the receiving frequency point according to the target frequency point, and sending the indication information including the updated receiving frequency point to the second terminal so that the second terminal sends the information according to the updated receiving frequency point. The method and the device can realize frequency point self-adaptation in the communication process, and improve the flexibility and the reliability of information transmission.

Description

Information transmission method and device, storage medium and electronic equipment

Technical Field

The present disclosure relates to the field of electronic information technologies, and in particular, to a method and an apparatus for information transmission, a storage medium, and an electronic device.

Background

With the continuous development of wireless communication technology, the narrowband wireless communication technology has been widely used in people's daily life due to its advantages of fast network establishment speed, low cost, convenient capacity expansion, etc. At present, the narrowband wireless communication technology is mainly applied to public networks. Taking NB-IoT (English: Narrow Band Internet of Things, Chinese: narrowband Internet of Things) network as an example, the NB-IoT overall network architecture is mainly divided into 5 parts: the system comprises NB-IoT terminals, NB-IoT base stations, an NB-IoT packet core network, an Internet of things connection management platform and an industrial application server. However, in the communication process, the NB-IoT terminal can only transmit and receive information at the frequency point provided by the NB-IoT base station, and reliability of information transmission cannot be guaranteed.

Disclosure of Invention

The invention aims to provide an information transmission method, an information transmission device, a storage medium and an electronic device, which are used for improving the flexibility and the reliability of narrow-band wireless communication.

According to a first aspect of the embodiments of the present disclosure, there is provided an information transmission method, applied to a first terminal, the method including:

receiving transmission information sent by a second terminal on a receiving frequency point, and determining a signal-to-noise ratio corresponding to the receiving frequency point according to the transmission information;

under the condition that the signal-to-noise ratio corresponding to the receiving frequency points meets the preset switching condition, determining target frequency points in a to-be-switched frequency point set, wherein the to-be-switched frequency point set comprises a first number of to-be-switched frequency points and a recorded signal-to-noise ratio corresponding to each to-be-switched frequency point, and the receiving frequency points belong to the to-be-switched frequency point set;

and updating the receiving frequency point according to the target frequency point, and sending the indication information including the updated receiving frequency point to the second terminal so that the second terminal sends information according to the updated receiving frequency point.

Optionally, the method further comprises:

under the condition that a preset frequency sweeping condition is met, receiving detection information sent by a second terminal on a second number of preset frequency points, and determining a signal-to-noise ratio corresponding to each preset frequency point according to the detection information corresponding to each preset frequency point;

and generating the frequency point set to be switched according to a first number of preset frequency points with the largest signal-to-noise ratio in a second number of preset frequency points, wherein the second number is larger than the first number.

Optionally, the method further comprises:

determining a third number of working frequency points according to the communication bandwidth corresponding to the first terminal, wherein the third number is greater than the second number;

detecting corresponding received signal strength indication on each working frequency point;

taking a second number of working frequency points with minimum received signal strength indication in a third number of working frequency points as the preset frequency points;

and sending the preset frequency point to the second terminal.

Optionally, the preset sweep condition includes any one of:

within a specified time after establishing communication connection with the second terminal;

all the frequency points to be switched in the frequency point set to be switched are used;

and the recording signal-to-noise ratio corresponding to the target frequency point in the frequency point set to be switched is smaller than a preset first signal-to-noise ratio threshold value.

Optionally, the receiving, at a second number of preset frequency points, the detection information sent by the second terminal, and determining, according to the detection information corresponding to each of the preset frequency points, a signal-to-noise ratio corresponding to the preset frequency point includes:

generating a target random number according to a starting frame number of a current scheduling period by a preset random number algorithm, wherein the scheduling period comprises at least one sending interval and at least one receiving interval;

determining a target preset frequency point in a second number of preset frequency points according to the target random number;

if the target preset frequency point is not detected, receiving the detection information sent by the second terminal on the target preset frequency point, and determining a signal-to-noise ratio corresponding to the target preset frequency point according to the detection information corresponding to the target preset frequency point;

and repeatedly executing the preset random number algorithm, generating a target random number according to the starting frame number of the current scheduling period until the detection information sent by the second terminal is received on the target preset frequency point, and determining the signal-to-noise ratio corresponding to the target preset frequency point according to the detection information corresponding to the target preset frequency point until each preset frequency point is detected.

Optionally, the preset switching condition is:

the difference between the recorded signal-to-noise ratio corresponding to the receiving frequency point in the set of frequency points to be switched and the current signal-to-noise ratio of the receiving frequency point is greater than a preset second signal-to-noise ratio threshold, and the frequency points to be switched with the recorded signal-to-noise ratio greater than the current signal-to-noise ratio of the receiving frequency point exist in the set of frequency points to be switched;

the step of determining the target frequency point in the frequency point set to be switched includes:

and intensively recording the frequency points to be switched with the largest signal-to-noise ratio and unused frequency points to be switched as the target frequency points.

Optionally, the sending the indication information including the updated receiving frequency point to the second terminal includes:

sending the indication information to the second terminal in the current sending interval so that the second terminal sends information according to the updated receiving frequency point;

the method further comprises the following steps:

in the next receiving interval, receiving the information sent by the second terminal on the updated receiving frequency point;

if the information sent by the second terminal is not received at the updated receiving frequency point, the indication information is repeatedly sent to the second terminal until the information sent by the second terminal is received at the updated receiving frequency point.

According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for information transmission, which is applied to a first terminal, the apparatus including:

the receiving module is used for receiving transmission information sent by a second terminal on a receiving frequency point and determining a signal-to-noise ratio corresponding to the receiving frequency point according to the transmission information;

a first determining module, configured to determine a target frequency point in a set of frequency points to be switched when a signal-to-noise ratio corresponding to the receiving frequency point meets a preset switching condition, where the set of frequency points to be switched includes a first number of frequency points to be switched and a recorded signal-to-noise ratio corresponding to each frequency point to be switched, and the receiving frequency point belongs to the set of frequency points to be switched;

and the updating module is used for updating the receiving frequency point according to the target frequency point and sending the indication information including the updated receiving frequency point to the second terminal so that the second terminal sends information according to the updated receiving frequency point.

Optionally, the apparatus further comprises:

the first detection module is used for receiving detection information sent by the second terminal on a second number of preset frequency points under the condition that a preset frequency sweeping condition is met, and determining the signal-to-noise ratio corresponding to each preset frequency point according to the detection information corresponding to the preset frequency point;

and the generating module is used for generating the frequency point set to be switched according to a first number of preset frequency points with the largest signal-to-noise ratio in a second number of preset frequency points, wherein the second number is larger than the first number.

Optionally, the apparatus further comprises:

a second determining module, configured to determine a third number of working frequency points according to a communication bandwidth corresponding to the first terminal, where the third number is greater than the second number;

the second detection module is used for detecting corresponding received signal strength indication on each working frequency point;

a third determining module, configured to use a second number of working frequency points with a minimum received signal strength indication in a third number of working frequency points as the preset frequency point;

and the sending module is used for sending the preset frequency point to the second terminal. .

Optionally, the preset sweep condition includes any one of:

Optionally, the first detection module is configured to:

Optionally, the preset switching condition is:

the first determination module is to:

and intensively recording the frequency point to be switched with the largest signal-to-noise ratio and the unused frequency point to be switched as the target frequency point.

Optionally, the update module is configured to:

the receiving module is further configured to:

the update module is further to:

According to a third aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of any one of the first aspects of the present disclosure.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method of any one of the first aspect of the present disclosure.

By the technical scheme, the transmission information sent by the second terminal is received on the receiving frequency point for the first time, and the signal-to-noise ratio corresponding to the receiving frequency point is determined according to the transmission information. And under the condition that the signal-to-noise ratio corresponding to the receiving frequency point meets the preset switching condition, determining a target frequency point in the to-be-switched frequency point set, wherein the to-be-switched frequency point set comprises a first number of to-be-switched frequency points and a recorded signal-to-noise ratio corresponding to each to-be-switched frequency point, and the receiving frequency point belongs to the to-be-switched frequency point set. And updating the receiving frequency point according to the target frequency point, and sending the indication information including the updated receiving frequency point to the second terminal so that the second terminal sends the information according to the updated receiving frequency point. According to the method and the device, under the condition that the signal-to-noise ratio corresponding to the receiving frequency point meets the preset switching condition, the receiving frequency point is updated by selecting the target frequency point in the set of the frequency points to be switched, so that the frequency point self-adaption in the communication process can be realized, and the flexibility and the reliability of information transmission are improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a flow chart illustrating a method of information transfer in accordance with an exemplary embodiment;

FIG. 2 is a schematic diagram of a scheduling pattern according to the embodiment of FIG. 1;

FIG. 3 is a flow chart illustrating another method of information transfer in accordance with an exemplary embodiment;

FIG. 4 is a flow chart illustrating another method of information transfer in accordance with an exemplary embodiment;

FIG. 5 is a flow chart illustrating another method of information transfer in accordance with an exemplary embodiment;

FIG. 6 is a flow chart illustrating another method of information transfer in accordance with an exemplary embodiment;

FIG. 7 is a block diagram illustrating an apparatus for information transfer in accordance with an exemplary embodiment;

FIG. 8 is a block diagram illustrating another apparatus for information transfer in accordance with an example embodiment;

FIG. 9 is a block diagram illustrating another apparatus for information transfer in accordance with an exemplary embodiment;

FIG. 10 is a block diagram illustrating an electronic device in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

It should be noted that all actions of acquiring signals, information or data in the present disclosure are performed under the premise of complying with the corresponding data protection regulation policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.

Fig. 1 is a flowchart illustrating a method for information transmission according to an exemplary embodiment, where the method is applied to a first terminal, as shown in fig. 1, and may include:

step 101, receiving transmission information sent by a second terminal at a receiving frequency point, and determining a signal-to-noise ratio corresponding to the receiving frequency point according to the transmission information.

For example, an application scenario of the present disclosure may be communication between two terminals in a narrowband wireless communication network, which may be, for example, an NB-IoT network. First, the frequency points of the first terminal and the second terminal for communication may be set as the same designated frequency point in advance, and the first terminal may receive the synchronization signal including the synchronization parameter sent by the second terminal on the designated frequency point. The synchronization parameter may include a synchronization frame number, which may be understood as a frame number of the second terminal device. The first terminal may modify the frame number of the first terminal to the sync frame number under the condition that it is determined that the synchronization parameter matches the parameter of the first terminal, so that the frame number of the first terminal is synchronized with the frame number of the second terminal. The first terminal may then initiate a random access request to the second terminal to establish a communication connection with the second terminal.

Further, a target scheduling mode can be selected in advance from a plurality of scheduling modes to be selected according to actual communication bandwidth requirements, so that the first terminal and the second terminal can perform point-to-point communication according to the target scheduling mode. Each of the candidate scheduling modes is used for indicating the number and the sequence of the receiving intervals and the sending intervals in one scheduling period, and the scheduling modes of the first terminal and the second terminal are matched with each other. For example, the second information sent by the first terminal to the second terminal may be uplink scheduling UL (U for short), which corresponds to the transmission interval of the first terminal. Correspondingly, the second terminal sends the first information to the first terminal as downlink scheduling DL (D for short), which corresponds to the receiving interval of the first terminal. Taking the example that the first terminal transmits the second information to the second terminal as uplink scheduling UL and the second terminal transmits the first information to the first terminal as downlink scheduling DL, as shown in fig. 2(a), when the scheduling mode of the first terminal is DUDU, the scheduling mode of the second terminal may be UDUD. As shown in fig. 2(b), when the scheduling mode of the first terminal is DDDUU, the scheduling mode of the second terminal may be UUUDD. As shown in fig. 2(c), when the scheduling mode of the first terminal is ddddddu, the scheduling mode of the second terminal may be uuuuuud. The scheme may be applicable to any scheduling mode, which may be, for example, a DUDU.

In the communication process of the first terminal and the second terminal, the first terminal can receive transmission information sent by the second terminal on the receiving frequency point, and can obtain a signal-to-noise ratio corresponding to the receiving frequency point according to the signal intensity and the noise intensity of the transmission information, wherein the signal-to-noise ratio is a ratio of the signal intensity to the noise intensity, and the larger the signal-to-noise ratio is, the better the signal transmission quality of the receiving frequency point is.

102, under the condition that the signal-to-noise ratio corresponding to the receiving frequency points meets the preset switching condition, determining target frequency points in the frequency point set to be switched, wherein the frequency point set to be switched comprises a first number of frequency points to be switched and a recorded signal-to-noise ratio corresponding to each frequency point to be switched, and the receiving frequency points belong to the frequency point set to be switched.

For example, when the signal-to-noise ratio corresponding to the receiving frequency point meets the preset switching condition, the target frequency point may be determined in the to-be-switched frequency point set, for example, the to-be-switched frequency point may be set, the corresponding recorded signal-to-noise ratio is the largest, and the unused to-be-switched frequency point is used as the target frequency point. The frequency point set to be switched can be understood as a frequency point set recorded in a frequency sweeping manner in advance, wherein the frequency point set comprises a first number of frequency points to be switched and a recording signal-to-noise ratio corresponding to each frequency point to be switched, and the recording signal-to-noise ratio can be understood as a signal-to-noise ratio corresponding to each frequency point to be switched detected in the frequency sweeping process. For example, the frequency point set to be switched may include two arrays, one of the arrays may be used to store the frequency points to be switched, the other data may be used to store the signal-to-noise ratio corresponding to the frequency points to be switched, the two arrays have the same length, and the elements with the same sequence number in the arrays correspond to each other. It should be noted that the receiving frequency point belongs to a set of frequency points to be switched, that is, the receiving frequency point of the current first terminal is also selected from the set of frequency points to be switched, and the first number may be 5, for example.

The preset switching condition may be that the recorded signal-to-noise ratio corresponding to the frequency points to be switched and the receiving frequency points are concentrated, and the difference between the recorded signal-to-noise ratio and the current signal-to-noise ratio of the receiving frequency points is greater than a first preset threshold, wherein the first preset threshold may be 5dB, for example, the preset switching condition may also be that the frequency points to be switched and the recording signal-to-noise ratio is greater than the current signal-to-noise ratio of the receiving frequency points. The preset switching condition may also be that the current signal-to-noise ratio of the receiving frequency point is smaller than a preset second preset threshold, where the second preset threshold may be, for example, 3 dB. The preset switching condition is not particularly limited in the present disclosure.

And 103, updating the receiving frequency point according to the target frequency point, and sending the indication information including the updated receiving frequency point to the second terminal so that the second terminal sends information according to the updated receiving frequency point.

For example, the first terminal may update the receiving frequency point of the first terminal to the target frequency point to obtain an updated receiving frequency point, and send the indication information including the updated receiving frequency point of the first terminal to the second terminal. After the second terminal receives the indication information, the indication information can be analyzed to obtain a receiving frequency point updated by the first terminal, then a sending frequency point of the second terminal can be updated to a receiving frequency point updated by the first terminal, namely a target frequency point, and information is sent to the first terminal according to the target frequency point (the receiving frequency point updated by the first terminal), so that when the signal transmission quality of the receiving frequency point changes, self-adaptive switching of the frequency points is performed, the first terminal and the second terminal always work on the frequency point with better signal transmission quality, and the flexibility and the reliability of information transmission can be improved.

It should be noted that, the second terminal may also update the receiving frequency point of the second terminal according to the manners shown in steps 101 to 103, so as to implement adaptive switching of the receiving frequency point of the second terminal, and correspondingly, the first terminal may send a message to the second terminal according to the updated receiving frequency point of the second terminal. That is, the receiving frequency point of the first terminal is consistent with the transmitting frequency point of the second terminal, and the receiving frequency point of the second terminal is consistent with the transmitting frequency point of the first terminal. Further, the receiving frequency point of the first terminal may not be consistent with the transmitting frequency point of the first terminal, and similarly, the receiving frequency point of the second terminal may not be consistent with the transmitting frequency point of the second terminal.

In summary, the present disclosure receives, for the first time, transmission information sent by the second terminal on the receiving frequency point, and determines, according to the transmission information, a signal-to-noise ratio corresponding to the receiving frequency point. And under the condition that the signal-to-noise ratio corresponding to the receiving frequency point meets the preset switching condition, determining a target frequency point in the to-be-switched frequency point set, wherein the to-be-switched frequency point set comprises a first number of to-be-switched frequency points and a recorded signal-to-noise ratio corresponding to each to-be-switched frequency point, and the receiving frequency point belongs to the to-be-switched frequency point set. And updating the receiving frequency point according to the target frequency point, and sending the indication information including the updated receiving frequency point to the second terminal so that the second terminal sends the information according to the updated receiving frequency point. According to the method and the device, under the condition that the signal-to-noise ratio corresponding to the receiving frequency point meets the preset switching condition, the receiving frequency point is updated by selecting the target frequency point in the set of the frequency points to be switched, so that the frequency point self-adaption in the communication process can be realized, and the flexibility and the reliability of information transmission are improved.

Fig. 3 is a flow chart illustrating another method of information transmission according to an example embodiment, which may further include, as shown in fig. 3:

and 104, receiving the detection information sent by the second terminal on a second number of preset frequency points under the condition that the preset frequency sweeping condition is met, and determining the signal-to-noise ratio corresponding to each preset frequency point according to the detection information corresponding to the preset frequency point.

And 105, generating a frequency point set to be switched according to the first number of preset frequency points with the largest signal-to-noise ratio in the second number of preset frequency points, wherein the second number is larger than the first number.

For example, the frequency sweeping may be performed for a second number of preset frequency points under the condition that the preset frequency sweeping condition is satisfied. Specifically, the frequency sweeping process may include, first, receiving detection information sent by the second terminal on a second number of preset frequency points, and obtaining a signal-to-noise ratio corresponding to each preset frequency point according to a signal intensity and a noise intensity of the detection information corresponding to the preset frequency point. And then, a first number of preset frequency points with the maximum signal to noise ratio can be obtained from a second number of preset frequency points, the first number of preset frequency points with the maximum signal to noise ratio are used as the frequency points to be switched in the frequency point set to be switched, and the recorded signal to noise ratio corresponding to each frequency point to be switched can be stored in the frequency point set to be switched. Wherein the second number is larger than the first number, which may be, for example, 5, and the second number may be, for example, 40. The preset frequency sweeping condition may be that all the frequency points to be switched in the frequency point set to be switched are used, or the preset frequency sweeping condition may be within a specified time length after the first terminal and the second terminal establish a communication connection, which is not specifically limited by the disclosure.

In an implementation manner, a first number of preset frequency points with the largest signal-to-noise ratio may be sequentially placed in the array a according to the sequence of the signal-to-noise ratios from large to small, and a recorded signal-to-noise ratio corresponding to each preset frequency point may be placed in the array b at a position corresponding to the same sequence number. Taking the first number of 3, the first number of preset frequency points being A, B, C, the snr corresponding to a being 10, the snr corresponding to B being 8, and the snr corresponding to C being 15 as examples, C may be placed at the position a [0] in the array a, a may be placed at the position a [1] in the array a, and B may be placed at the position a [2] in the array a. Accordingly, 15 may be placed in the b [0] position in array b, 10 may be placed in the b [1] position in array b, and 8 may be placed in the b [2] position in array b.

Fig. 4 is a flow chart illustrating another method of information transmission according to an example embodiment, which may further include, as shown in fig. 4:

and 106, determining a third number of working frequency points according to the communication bandwidth corresponding to the first terminal, wherein the third number is greater than the second number.

And step 107, detecting corresponding received signal strength indication on each working frequency point.

And step 108, taking the second number of working frequency points with the minimum received signal strength indication in the third number of working frequency points as preset frequency points.

And step 109, sending the preset frequency point to the second terminal.

For example, before the first terminal and the second terminal leave the factory, a third number of operating frequency points may be extracted from the communication bandwidth corresponding to the first terminal, where the third number is greater than the second number, the second number may be 40, for example, and the third number may be 50, for example. The third number of working frequency points may be extracted according to a preset step value, where the step value may be larger than the radio frequency bandwidth of the first terminal, and the third number of working frequency points may also be randomly extracted according to a preset random algorithm, which is not specifically limited by the present disclosure. Furthermore, after the first terminal is started up and establishes communication connection with the second terminal each time, the first terminal may detect a corresponding Received Signal Strength Indication (RSSI) on each working frequency point, respectively, and if the RSSI detected on a certain working frequency point is large, it indicates that there may be other terminals communicating on the frequency point, and it may be determined that the receiving performance corresponding to the working frequency point is poor. On the contrary, if the received signal strength indication detected on a certain working frequency point is small, it indicates that there may be no other terminal communicating on the frequency point, so the receiving performance corresponding to the working frequency point is better. Therefore, a second number of working frequency points with the minimum received signal strength indication in the third number of working frequency points can be used as the preset frequency points to obtain a second number of preset frequency points with better receiving performance, and the second number of preset frequency points are sent to the second terminal. After the second terminal receives the preset frequency point of the first terminal, the frequency sweeping of the preset frequency point of the first terminal can be started. Specifically, for example, the communication bandwidth is 20MHz, the third number is 50, and the second number is 40, 50 working frequency points may be extracted according to the step value of 400000Hz, and 40 frequency points with the smallest received signal strength indication among the 50 working frequency points are used as preset frequency points. Correspondingly, the second terminal may also detect a corresponding received signal strength indication on each working frequency point of the second terminal after starting up and establishing a communication connection with the first terminal each time, and use a second number of working frequency points with the minimum received signal strength indication among all working frequency points of the second terminal as preset frequency points of the second terminal, and send the preset frequency points of the second terminal to the first terminal. After the first terminal receives the preset frequency point of the second terminal, the frequency sweeping of the preset frequency point of the second terminal can be started.

In an application scenario, the preset sweep condition includes any one of the following conditions:

within a specified time period after establishing a communication connection with the second terminal.

All the frequency points to be switched in the frequency point set to be switched are used.

For example, the preset sweep condition may be within a specified time duration after the first terminal establishes a communication connection with the second terminal. That is to say, the first terminal may perform frequency sweeping immediately after establishing communication connection with the second terminal, so that when the first terminal and the second terminal just start to communicate, a first number of frequency points to be switched are selected from a second number of preset frequency points as a set of frequency points to be switched, so that the first terminal can receive information on the frequency points with better signal transmission quality just when beginning to communicate with the second terminal.

The preset frequency sweeping condition can also be that all the frequency points to be switched in the frequency point set to be switched are used. Specifically, under the condition that the signal to noise ratios corresponding to the receiving frequency points meet the preset switching conditions, if all the frequency points to be switched in the frequency point set to be switched are used, that is, no available frequency points exist in the frequency point set to be switched, the preset frequency sweeping conditions can be met, and at the moment, according to the signal to noise ratio corresponding to each preset frequency point, a first number of frequency points to be switched are selected from a second number of preset frequency points to serve as the frequency point set to be switched, so that in the subsequent communication process, a target frequency point can be selected from the frequency point set to be switched to carry out frequency point switching.

The preset sweep frequency condition can also be that the recorded signal-to-noise ratio corresponding to the target frequency point in the frequency point set to be switched is smaller than a preset first signal-to-noise ratio threshold value. Specifically, under the condition that the signal-to-noise ratios corresponding to the receiving frequency points meet the preset switching condition, if the recorded signal-to-noise ratios corresponding to the target frequency points in the set of frequency points to be switched are smaller than a preset first signal-to-noise ratio threshold, where the first signal-to-noise ratio threshold may be 3dB, it indicates that the signal transmission quality of all preset frequency points is poor in the last frequency sweeping process, and the signal-to-noise ratios of all preset frequency points are small, so that the signal-to-noise ratios of the second number of frequency points to be switched obtained by frequency sweeping are also small. Compared with the last frequency sweeping time at the current time, the signal transmission quality of the preset frequency point may have changed, so that the frequency sweeping can be carried out again to obtain the frequency point to be switched with larger signal-to-noise ratio.

Fig. 5 is a flow chart illustrating another method of information transfer according to an example embodiment, and as shown in fig. 5, step 104 may be implemented by:

step 1041, generating a target random number according to a starting frame number of a current scheduling cycle by a preset random number algorithm, where the scheduling cycle includes at least one sending interval and at least one receiving interval.

And 1042, determining a target preset frequency point in the second number of preset frequency points according to the target random number.

For example, in the frequency sweeping process, if the signal-to-noise ratio corresponding to each preset frequency point is sequentially detected according to the sequence of the frequency points from large to small or from small to large, a long-time communication abnormality may be caused under the condition that the signal transmission quality of a certain frequency band including a plurality of preset frequency points is deteriorated, so that the first terminal cannot normally receive the information sent by the second terminal. In order to ensure the stability of communication between the first terminal and the second terminal in the frequency sweeping process, the first terminal can generate a target random number according to the starting frame number of the current scheduling period through a preset random number algorithm. The scheduling period includes at least one transmission interval and at least one reception interval, the first terminal transmits information to the second terminal in the transmission interval, and receives information transmitted by the second terminal in the reception interval, that is, the reception interval of the first terminal corresponds to the transmission interval of the second terminal, and the transmission interval of the first terminal corresponds to the reception interval of the second terminal. And then determining target preset frequency points in the second number of preset frequency points according to the target random number. In one implementation, a second number of preset frequency points may be placed in the array c in advance, and the preset frequency point corresponding to the same sequence number as the target random number may be used as the target preset frequency point. Taking the target random number as 7 as an example, the preset frequency point corresponding to c [7] in the array c may be used as the target preset frequency point.

And 1043, if the target preset frequency point is not detected, receiving detection information sent by the second terminal at the target preset frequency point, and determining a signal-to-noise ratio corresponding to the target preset frequency point according to the detection information corresponding to the target preset frequency point.

And step 1044, repeatedly executing a preset random number algorithm, generating a target random number until detection information sent by a second terminal is received at the target preset frequency point according to the starting frame number of the current scheduling period, and determining the signal-to-noise ratio corresponding to the target preset frequency point according to the detection information corresponding to the target preset frequency point until each preset frequency point is detected.

For example, if the target preset frequency point is not detected, the detection information sent by the second terminal may be received at the target preset frequency point, and the signal-to-noise ratio corresponding to the target preset frequency point may be determined according to the detection information corresponding to the target preset frequency point. In one implementation manner, each preset frequency point can be marked by a preset flag bit, the flag bit of each preset frequency point can be initialized before each frequency sweep, and after the preset frequency point is detected, the flag bit of the preset frequency point can be updated, so that whether the target preset frequency point is detected or not can be determined according to the flag bit of the preset frequency point. For example, before each frequency sweep, the flag bit of each preset frequency point may be initialized to 0, after the preset frequency point is detected, the flag bit of the preset frequency point may be updated to 1, if the flag bit of the target preset frequency point is 0, it may be determined that the target preset frequency point is not detected, and if the flag bit of the target preset frequency point is 1, it may be determined that the target preset frequency point is detected. In another implementation manner, before frequency sweeping, a preset initial value may be used to initialize a signal-to-noise ratio corresponding to each preset frequency point, where the initial value may be, for example, -1. After the preset frequency point is detected, the initial value can be replaced by the recorded signal-to-noise ratio corresponding to the detected preset frequency point, so that whether the target preset frequency point is detected or not can be determined according to the signal-to-noise ratio corresponding to the preset frequency point. If the signal-to-noise ratio corresponding to the target preset frequency point is an initial value, it can be determined that the target preset frequency point is not detected, and if the signal-to-noise ratio corresponding to the target preset frequency point is not an initial value, it can be determined that the target preset frequency point is detected. Further, step 1041 to step 1043 may be repeatedly executed until each preset frequency point is detected.

Correspondingly, the second terminal can be synchronized with the first terminal, and a target random number is generated according to the starting frame number of the current scheduling period through a random number algorithm. And then the second terminal can determine a target preset frequency point in the second number of preset frequency points according to the target random number, and if the target preset frequency point is not detected, the second terminal can send detection information to the first terminal on the target preset frequency point.

It should be noted that strong interference may occur on individual or continuous multiple preset frequency points during the frequency sweeping process, so as to trigger a link release condition, resulting in instability or disconnection of a communication link, and therefore, the determination step of the link release condition may be removed during the frequency sweeping process, so as to ensure the stability of the communication link during the frequency sweeping process.

In another application scenario, the preset switching condition is:

and the difference between the recorded signal-to-noise ratio corresponding to the concentrated receiving frequency points of the frequency points to be switched and the current signal-to-noise ratio of the receiving frequency points is larger than a preset second signal-to-noise ratio threshold value, and the concentrated receiving frequency points to be switched have the frequency points to be switched with the recorded signal-to-noise ratio larger than the current signal-to-noise ratio of the receiving frequency points.

Accordingly, one implementation of step 102 may be:

and intensively recording the frequency points to be switched with the largest signal-to-noise ratio and unused frequency points to be switched as target frequency points.

For example, the recorded signal-to-noise ratios corresponding to the frequency points to be centrally received and the current signal-to-noise ratio of the receiving frequency points can be compared in real time, if the difference between the recorded signal-to-noise ratio corresponding to the frequency points to be centrally received and the current signal-to-noise ratio of the receiving frequency points is greater than a preset second signal-to-noise ratio threshold, wherein the second signal-to-noise ratio threshold can be 5dB, and the frequency points to be switched, in which the recorded signal-to-noise ratio is greater than the current signal-to-noise ratio of the receiving frequency points, exist in the frequency points to be switched, it can be determined that the preset switching condition is met, and the frequency points to be switched, in which the recorded signal-to-noise ratio is the largest and which is not used, are to be switched, can be used as target frequency points.

Specifically, the second signal-to-noise ratio threshold value is 5dB, the frequency points to be switched collectively include D, E, F frequency points to be switched in total, the recorded signal-to-noise ratio corresponding to the frequency point D to be switched is 20dB, the recorded signal-to-noise ratio corresponding to the frequency point E to be switched is 18dB, the recorded signal-to-noise ratio corresponding to the frequency point F to be switched is 15dB, the receiving frequency point is the frequency point D to be switched, the current signal-to-noise ratio of the receiving frequency point is 12dB, the frequency point E, F to be switched is not used as an example, the recorded signal-to-noise ratio corresponding to the frequency points to be switched collectively is 8dB, which is greater than the second signal-to-noise ratio threshold value 5dB, so that the preset switching condition can be determined to be satisfied, and the recorded signal-to-noise ratio can be the largest, and the unused frequency point E to be switched serves as a target frequency point.

Fig. 6 is a flowchart illustrating another method for information transmission according to an exemplary embodiment, and as shown in fig. 6, one implementation manner of step 103 may be:

and sending the indication information to the second terminal in the current sending interval so that the second terminal sends the information according to the updated receiving frequency point.

Correspondingly, the method can further comprise the following steps:

and step 110, in the next receiving interval, receiving the information sent by the second terminal on the updated receiving frequency point.

And step 111, if the information sent by the second terminal is not received at the updated receiving frequency point, repeatedly sending the indication information to the second terminal until the information sent by the second terminal is received at the updated receiving frequency point.

For example, after the target frequency point is determined, the indication information may be sent to the second terminal in the sending interval of the current scheduling period, and after the second terminal receives the indication information, the sending frequency point of the second terminal may be updated to an updated receiving frequency point (i.e., the target frequency point), and from the next scheduling period, information is sent to the first terminal in the updated sending frequency point (i.e., the target frequency point) in the sending interval of the second terminal. The first terminal may receive the information sent by the second terminal at the updated receiving frequency point (i.e., the target frequency point) in the receiving interval of the next scheduling period. If the first terminal does not receive the information sent by the second terminal on the updated receiving frequency point, possibly because the second terminal does not receive the indication information sent by the first terminal, the second terminal still sends the information on the receiving frequency point before the first terminal is updated, and then the first terminal can switch to the receiving frequency point before the updating in the current receiving interval to continue receiving the information. Then, in the sending interval of the next scheduling period, the first terminal may send the indication information to the second terminal again, and in the receiving interval of the scheduling period, receive the information sent by the second terminal at the updated receiving frequency point. If the first terminal successfully receives the information sent by the second terminal on the updated receiving frequency point, the information sent by the second terminal can be continuously received on the updated receiving frequency point in the subsequent scheduling interval. If the first terminal still does not receive the information sent by the second terminal on the updated receiving frequency point, the indication information can be repeatedly sent to the second terminal in the later scheduling interval, and the information sent by the second terminal is received on the updated receiving frequency point until the information sent by the second terminal is received on the updated receiving frequency point.

Fig. 7 is a block diagram illustrating an apparatus for information transmission according to an exemplary embodiment, where the apparatus 200 is applied to a first terminal, as shown in fig. 7, and may include:

the receiving module 201 is configured to receive transmission information sent by the second terminal at the receiving frequency point, and determine a signal-to-noise ratio corresponding to the receiving frequency point according to the transmission information.

The first determining module 202 is configured to determine a target frequency point in a set of frequency points to be switched under the condition that the signal-to-noise ratio corresponding to the receiving frequency point meets a preset switching condition, where the set of frequency points to be switched includes a first number of frequency points to be switched and a recorded signal-to-noise ratio corresponding to each frequency point to be switched, and the receiving frequency point belongs to the set of frequency points to be switched.

And the updating module 203 is configured to update the receiving frequency point according to the target frequency point, and send the indication information including the updated receiving frequency point to the second terminal, so that the second terminal sends information according to the updated receiving frequency point.

Fig. 8 is a block diagram illustrating another apparatus for information transmission according to an exemplary embodiment, and as shown in fig. 8, the apparatus 200 may further include:

the first detection module 204 is configured to receive detection information sent by the second terminal at a second number of preset frequency points when a preset frequency sweeping condition is met, and determine a signal-to-noise ratio corresponding to each preset frequency point according to the detection information corresponding to the preset frequency point.

The generating module 205 is configured to generate a set of frequency points to be switched according to a first number of preset frequency points with a largest signal-to-noise ratio among a second number of preset frequency points, where the second number is greater than the first number.

Fig. 9 is a block diagram illustrating another apparatus for information transmission according to an exemplary embodiment, and as shown in fig. 9, the apparatus 200 may further include:

a second determining module 206, configured to determine a third number of working frequency points according to the communication bandwidth corresponding to the first terminal, where the third number is greater than the second number.

The second detecting module 207 is configured to detect a corresponding received signal strength indication at each operating frequency point.

A third determining module 208, configured to use a second number of working frequency points with the smallest received signal strength indication in the third number of working frequency points as the preset frequency point.

A sending module 209, configured to send the preset frequency point to the second terminal.

In an application scenario, the preset sweep condition includes any one of the following:

In another application scenario, the first detection module 204 is configured to:

and generating a target random number according to the starting frame number of the current scheduling period by a preset random number algorithm, wherein the scheduling period comprises at least one sending interval and at least one receiving interval.

And determining a target preset frequency point in the second number of preset frequency points according to the target random number.

And if the target preset frequency point is not detected, receiving detection information sent by the second terminal on the target preset frequency point, and determining the signal-to-noise ratio corresponding to the target preset frequency point according to the detection information corresponding to the target preset frequency point.

And repeatedly executing the steps of generating a target random number on the target preset frequency point according to the starting frame number of the current scheduling period through a preset random number algorithm until the detection information sent by the second terminal is received, and determining the signal-to-noise ratio corresponding to the target preset frequency point according to the detection information corresponding to the target preset frequency point until each preset frequency point is detected.

In another application scenario, the preset switching condition is:

A first determination module 202 for

In another application scenario, the update module 203 is configured to:

Correspondingly, the receiving module 201 is further configured to:

and in the next receiving interval, receiving the information sent by the second terminal on the updated receiving frequency point.

Accordingly, the update module 203 is further configured to:

With regard to the apparatus in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.

Fig. 10 is a block diagram illustrating an electronic device 300 in accordance with an example embodiment. As shown in fig. 10, the electronic device 300 may include: a processor 301 and a memory 302. The electronic device 300 may also include one or more of a multimedia component 303, an input/output (I/O) interface 304, and a communication component 305.

The processor 301 is configured to control the overall operation of the electronic device 300, so as to complete all or part of the steps in the above-mentioned information transmission method. The memory 302 is used to store various types of data to support operation at the electronic device 300, such as instructions for any application or method operating on the electronic device 300 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and the like. The Memory 302 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 303 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 302 or transmitted through the communication component 305. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 304 provides an interface between the processor 301 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 305 is used for wired or wireless communication between the electronic device 300 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 305 may therefore include: Wi-Fi module, Bluetooth module, NFC module, etc.

In an exemplary embodiment, the electronic Device 300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described information transmission method.

In another exemplary embodiment, a computer-readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described method of information transmission is also provided. For example, the computer readable storage medium may be the memory 302 including program instructions executable by the processor 301 of the electronic device 300 to perform the method of information transmission described above.

In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the method of information transmission described above when executed by the programmable apparatus.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A method for information transmission, applied to a first terminal, the method comprising:

2. The method of claim 1, further comprising:

under the condition that a preset frequency sweeping condition is met, receiving detection information sent by the second terminal on a second number of preset frequency points, and determining a signal-to-noise ratio corresponding to each preset frequency point according to the detection information corresponding to the preset frequency point;

3. The method of claim 2, further comprising:

and sending the preset frequency point to the second terminal.

4. The method according to claim 2, wherein the preset sweep conditions include any one of:

5. The method according to claim 2, wherein the receiving the detection information sent by the second terminal on a second number of preset frequency points, and determining the snr corresponding to each of the preset frequency points according to the detection information corresponding to each of the preset frequency points comprises:

and repeatedly executing the preset random number algorithm, generating a target random number to the target preset frequency point to receive the detection information sent by the second terminal according to the starting frame number of the current scheduling period, and determining the signal-to-noise ratio corresponding to the target preset frequency point according to the detection information corresponding to the target preset frequency point until each preset frequency point is detected.

6. The method according to claim 1, wherein the preset switching condition is:

the difference between the recorded signal-to-noise ratio corresponding to the receiving frequency point in the frequency point set to be switched and the current signal-to-noise ratio of the receiving frequency point is larger than a preset second signal-to-noise ratio threshold value, and the frequency point set to be switched has the frequency point to be switched, the recorded signal-to-noise ratio of which is larger than the current signal-to-noise ratio of the receiving frequency point;

7. The method according to claim 5, wherein the sending the indication information including the updated receiving frequency point to the second terminal includes:

the method further comprises the following steps:

8. An apparatus for information transmission, applied to a first terminal, the apparatus comprising:

a determining module, configured to determine a target frequency point in a set of frequency points to be switched when a signal-to-noise ratio corresponding to the receiving frequency point meets a preset switching condition, where the set of frequency points to be switched includes a first number of frequency points to be switched and a recorded signal-to-noise ratio corresponding to each frequency point to be switched, and the receiving frequency point belongs to the set of frequency points to be switched;

9. A non-transitory computer readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.

10. An electronic device, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method of any one of claims 1-7.