CN107124691B - Low-power-consumption Bluetooth-assisted WiFi intelligent access method - Google Patents

Low-power-consumption Bluetooth-assisted WiFi intelligent access method Download PDF

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Publication number
CN107124691B
CN107124691B CN201710213343.XA CN201710213343A CN107124691B CN 107124691 B CN107124691 B CN 107124691B CN 201710213343 A CN201710213343 A CN 201710213343A CN 107124691 B CN107124691 B CN 107124691B
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wifi
beacon
mobile terminal
period
detected
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CN107124691A (en
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左金航
王玉峰
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Nanjing University of Posts and Telecommunications
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Nanjing University of Posts and Telecommunications
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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

Abstract

The invention discloses a low-power-consumption Bluetooth-assisted WiFi intelligent access method, which comprises the steps that firstly, a WiFi AP reads the self state and confirms that the current state is public or private; then the WiFi AP sends WiFi beacons in different periods according to different self states; the mobile terminal continuously detects the period of the peripheral WiFi beacons by using a received signal strength indicator of the low-power-consumption Bluetooth; and finally, the mobile terminal determines whether to awaken the WiFi network interface card according to the detected beacon period so as to access the WiFi. The invention enables the mobile terminal to wake the WiFi NIC for WiFi access only when the BLE detects the accessible WiFi AP, thereby greatly saving the energy consumption generated by the continuous work of the WiFi NIC in the traditional access method. The accessibility information of the WiFi AP is transmitted to the BLE through the period of sending the beacon by the WiFi AP, the method does not need to customize hardware, does not influence normal WiFi communication, and has universal applicability.

Description

Low-power-consumption Bluetooth-assisted WiFi intelligent access method
Technical Field
The invention belongs to the technical field of wireless networks, and particularly relates to a low-power-consumption Bluetooth-assisted WiFi intelligent access method.
Background
With the popularization of WiFi and mobile smart devices, connecting mobile devices to WiFi has become an indispensable operation in people's daily life. However, in the existing WiFi Access method, a WiFi Network Interface Card (NIC) is used to continuously detect peripheral WiFi Access Points (APs), which continuously consumes energy in the mobile device. Furthermore, WiFi APs in cities are today densely distributed, many of which are private (requiring passwords for access). Thus, blindly waking up a WiFi NIC without knowing whether it can be accessed when any AP is present can waste significant energy on the mobile device.
In the prior art, no report is found that the smart access of WiFi is realized with the aid of Low power consumption Bluetooth BLE (BLE). The utility model discloses the utility model who announces No. CN205862389U, "password intelligence lock remote management repeater based on Wi-Fi and bluetooth" also relates to bluetooth low energy module and Wi-Fi, but its main objective is the remote management who realizes the password intelligence lock. Consider that currently more and more mobile devices support bluetooth low energy. Therefore, it is of great significance to research how to realize the intelligent access of the WiFi by the aid of the low-power-consumption Bluetooth, and to maximally realize the energy saving and the standby time extension of the mobile device.
Disclosure of Invention
The invention aims to provide a low-power Bluetooth (BLE) -assisted WiFi intelligent access method aiming at the defects of the existing WiFi access method. The method can greatly save the energy consumption generated by continuous operation of the WiFi NIC in the traditional access method. In addition, the method is not customized by hardware, does not influence normal WiFi communication, and has universal applicability.
In order to achieve the above object, the technical solution provided by the present invention is a Bluetooth Low Energy (BLE) -assisted WiFi intelligent access method, which specifically includes the following steps:
step 1: the WiFi AP reads the self state and confirms that the current state is public or private;
step 2: the WiFi AP sends WiFi beacons in different periods according to different self states;
and step 3: the mobile terminal continuously detects the period of a peripheral WiFi beacon by using a Received Signal Strength Indicator (RSSI) of the low-power Bluetooth BLE;
and 4, step 4: the mobile terminal decides whether to wake up a WiFi Network Interface Card (NIC) for accessing WiFi according to the detected beacon period.
Further, the specific process of the step 2 is as follows: if the beacon is private, a WiFi beacon is sent in a default period; if public, the WiFi beacon is sent with a specific (different from default) periodicity.
The specific steps of the step 3 are as follows: the mobile terminal scans a common frequency band of the WiFi beacon by using a received signal strength indicator RSSI of the low-power-consumption Bluetooth BLE, and if a signal reaching the WiFi signal strength periodically is detected, the mobile terminal considers that the WiFi beacon of a certain surrounding AP is detected and records the beacon period of the WiFi beacon.
The specific steps of the step 4 are as follows: if the WiFi beacon period detected by the low-power-consumption Bluetooth is the default beacon period, the corresponding WiFi AP is private, and a WiFi Network Interface Card (NIC) on the mobile terminal is not awakened; if the detected WiFi beacon period is a specific (different from the default) beacon period, it indicates that the WiFi AP is public, and wakes up the WiFi network interface card NIC on the mobile terminal to access WiFi.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention enables the mobile terminal to wake the WiFi NIC for WiFi access only when the BLE detects the accessible WiFi AP, thereby greatly saving the energy consumption generated by the continuous work of the WiFi NIC in the traditional access method.
2. The accessibility information of the WiFi AP is transmitted to the BLE through the period of sending the beacon by the WiFi AP, the method does not need to customize hardware, does not influence normal WiFi communication, and has universal applicability.
Drawings
FIG. 1 is a schematic flow diagram of the overall process of the present invention.
Fig. 2 is a schematic flow chart of an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The invention provides a low-power consumption Bluetooth BLE assisted WiFi intelligent access method. According to the method, when the BLE of the mobile terminal detects the AP of the accessible WiFi, the NIC of the WiFi is awakened for WiFi access, and compared with the traditional WiFi access scheme, the energy consumption caused by continuous work of the NIC of the WiFi can be greatly saved. In addition, the accessibility information of the WiFi AP is transmitted to the BLE through the period of sending the beacon by the WiFiAP, the method and the device are not customized by hardware, do not influence normal WiFi communication, and have universal applicability.
The technical scheme adopted for solving the technical problem is a low-power consumption Bluetooth BLE assisted WiFi intelligent access method, the method transmits accessibility information of a WiFi AP to BLE through the period of beacon transmission of the WiFi AP, so that a mobile terminal can wake up a WiFi NIC for WiFi access when the BLE detects the accessible WiFi AP, and compared with the traditional WiFi access method, the method greatly saves energy consumption and has universal applicability.
As shown in FIG. 1, the process of the method of the present invention is as follows:
step 1: WiFiAP broadcasts self state;
step 1-1: the WiFi AP reads the self state and confirms that the current state is public or private;
step 1-2: the WiFi AP sends broadcast beacons in different periods according to its own status (public or private): if the beacon is private, a WiFi beacon is sent in a default period; if public, the WiFi beacon is sent with a specific (different from default) periodicity.
Step 2: the mobile terminal is intelligently accessed into WiFi according to the state of the AP;
step 2-1: the mobile terminal scans a common frequency band of the WiFi beacon by using the RSSI of the BLE, and if a signal reaching the WiFi signal strength periodically is detected, the mobile terminal considers that the WiFi beacon of a certain surrounding AP is detected and records the beacon period of the WiFi beacon.
Step 2-2: the mobile terminal determines whether to wake up a WiFi Network Interface Card (NIC) to access WiFi according to the detected beacon period: if the WiFi beacon period detected by the BLE is the default beacon period, the corresponding WiFi AP is private, and a WiFi Network Interface Card (NIC) on the mobile terminal is not awakened; if the detected WiFi beacon period is a specific (different from the default) beacon period, it indicates that the WiFi AP is public, and wakes up the WiFi NIC on the mobile terminal.
Step 2-3: the mobile terminal accesses WiFi using a WiFi NIC.
As shown in fig. 2, the method involves two types of entities and interactions between them: a WiFi Access Point (AP) and a BLE-enabled mobile terminal. Wherein the WiFi AP transmits accessibility information of the WiFi AP to the BLE through the period of transmitting the beacon; and the mobile terminal intelligently selects whether to awaken the WiFi NIC to access the WiFi by using the access state of the WiFiAP acquired by the BLE. The specific work flow of the method is described with reference to fig. 2 as follows:
WiFi AP1firstly, reading the self state and confirming that the current state is public or private. Here we assume AP1The current state is public. Followed by AP1Broadcast beacons are transmitted with different periods according to the own state (public or private): if private, adopting default period tdTransmitting a WiFi beacon; if it is open, a specific period t is adopteds(ts≠td) And transmitting the WiFi beacon. Because of the AP1The current state is public, so a specific period t is adoptedsAnd transmitting the WiFi beacon.
Mobile terminal M1To AP1When nearby, the RSSI of BLE is used for scanning the common frequency band of the WiFi beacon to detect the AP1WiFi beacon and record its informationMark period ts。M1Deciding whether to awaken a WiFi Network Interface Card (NIC) to access WiFi according to the detected beacon period: if the WiFi beacon period detected by BLE is the default beacon period tdIf so, the corresponding AP is indicated1To be private, not to wake up M1A WiFi Network Interface Card (NIC) over; if the detected WiFi beacon period is tsThen, the AP is described1To be public, wake up M1To access WiFi. M1Detecting an AP1WiFi beacon period of tsDescription of AP1Selecting to wake up WiFi NIC and connect AP for public1And accessing WiFi.
The above examples are only preferred embodiments of the present invention, it should be noted that: it will be apparent to those skilled in the art that various modifications and equivalents can be made without departing from the spirit of the invention, and it is intended that all such modifications and equivalents fall within the scope of the invention as defined in the claims.

Claims (4)

1. A low-power-consumption Bluetooth-assisted WiFi intelligent access method is characterized by comprising the following steps:
step 1: the WiFi AP reads the self state and confirms that the current state is public or private;
step 2: the WiFi AP sends WiFi beacons in different periods according to different self states;
and step 3: the mobile terminal continuously detects the period of the peripheral WiFi beacons by using a received signal strength indicator of the low-power-consumption Bluetooth;
and 4, step 4: the mobile terminal determines whether to awaken a WiFi network interface card according to the detected beacon period so as to access WiFi;
the mobile terminal determines whether to awaken a WiFi network interface card NIC to access WiFi according to the detected beacon period: if the WiFi beacon period detected by the BLE is the default beacon period, the corresponding WiFiAP is private, and a WiFi network interface card NIC on the mobile terminal is not awakened; if the detected WiFi beacon period is specific and is different from the default beacon period, the WiFi AP is public, and the WiFi NIC on the mobile terminal is awakened.
2. The bluetooth low energy assisted WiFi intelligent access method of claim 1 characterized in that the specific process of step 2 is: if the beacon is private, a WiFi beacon is sent in a default period; if the WiFi beacon is public, the WiFi beacon is sent in a specific period.
3. The bluetooth low energy assisted WiFi intelligent access method of claim 1, characterized by the specific steps of step 3: the mobile terminal scans the common frequency band of the WiFi beacon by using a received signal strength indicator of the low-power-consumption Bluetooth, and if a signal reaching the WiFi signal strength periodically is detected, the mobile terminal considers that the WiFi beacon of a certain peripheral AP is detected and records the beacon period of the WiFi beacon.
4. The bluetooth low energy assisted WiFi intelligent access method of claim 1, characterized by that, the specific step of step 4 is: if the WiFi beacon period detected by the low-power-consumption Bluetooth is the default beacon period, the corresponding WiFi AP is private, and a WiFi network interface card on the mobile terminal is not awakened; if the detected WiFi beacon period is a specific beacon period, the WiFi AP is public, and a WiFi network interface card on the mobile terminal is awakened to access WiFi.
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CN108494610B (en) * 2018-05-23 2021-03-23 南京邮电大学 Low-power-consumption Bluetooth IPv6 address automatic configuration method based on 6LoBLE
CN117082552A (en) * 2022-05-09 2023-11-17 维沃移动通信有限公司 Signal monitoring method, configuration method, device, terminal and network equipment
CN116546581B (en) * 2023-04-13 2024-02-02 江苏果下科技有限公司 Automatic cloud connection method based on network signal analysis

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US8934387B2 (en) * 2010-05-07 2015-01-13 Qualcomm Incorporated Detecting a WLAN signal using a bluetooth receiver during bluetooth scan activity
TWI432058B (en) * 2011-08-10 2014-03-21 Acer Inc Wireless communication method with low power consumption
US20130178163A1 (en) * 2012-01-10 2013-07-11 Htc Corporation Systems for Facilitating Wireless Communication and Related Methods
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