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WO2018120900A1 - Procédé et dispositif d'accès au réseau, et système - Google Patents

Procédé et dispositif d'accès au réseau, et système Download PDF

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Publication number
WO2018120900A1
WO2018120900A1 PCT/CN2017/100229 CN2017100229W WO2018120900A1 WO 2018120900 A1 WO2018120900 A1 WO 2018120900A1 CN 2017100229 W CN2017100229 W CN 2017100229W WO 2018120900 A1 WO2018120900 A1 WO 2018120900A1
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WO
WIPO (PCT)
Prior art keywords
channel
access point
station
wake
message
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/100229
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English (en)
Chinese (zh)
Inventor
李楠
吕开颖
韩志强
张学林
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ZTE Corp
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ZTE Corp
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Publication date
Priority claimed from CN201710030440.5A external-priority patent/CN108260186B/zh
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2018120900A1 publication Critical patent/WO2018120900A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • 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

Definitions

  • the present application relates to, but is not limited to, the field of wireless communication technologies, and in particular, to a network access method, apparatus, and system.
  • IoT devices are connected to the network and connected to each other through wired or wireless means, including intelligent transportation, environmental protection, government work, public safety, safe home, intelligent fire protection, industrial monitoring, and elderly care. Personal health, water monitoring, food traceability and many other areas.
  • the number of IoT devices involved in IoT applications is huge and can be called massive terminals. Most of these terminals work on battery power.
  • one of the methods is to add a power-saving module to the IoT device with wireless communication capability.
  • the working principle of the power-saving module is as follows: When the power-saving module is turned on, the device can shut down other modules. For example, the sensor module, the microprocessor module, the memory module, the wireless communication module, etc., only retains the operation of the power saving module, and the working state of the device is hereinafter referred to as the power saving state.
  • the power-saving module consumes very little power during operation, generally at the microwatt level.
  • the power-saving module needs to monitor whether there is a wake-up signal sent to itself. Once received, it triggers other modules to work according to the request of the wake-up signal, such as turning on the micro-processing module, turning on the wireless communication module, etc., hereinafter referred to as a wake-up process. .
  • the AP can also add a power-saving module.
  • the STA associated with the AP does not provide uplink data to the AP, the AP can only save the power-saving module. If a STA needs to send data to the AP, The wake-up signal is first sent to the AP, and the AP receives the wake-up signal, turns on other modules, and performs related operations, such as receiving uplink data from the STA.
  • the scanning process starts, but when the AP is in the power-saving state, only the power-saving module is in the listening state, so when the STA performs active or passive scanning on the channel,
  • the Beacon frame or the Probe Response frame from the AP may not be received within the length of the system.
  • the STA may jump to other channels to scan the target AP, thus extending the duration of the STA accessing the network.
  • an embodiment of the present application provides a network access method, including:
  • the station sends one or more wake-up messages on a channel in the first set of channels, wherein the wake-up message is used to wake up one or more access points, the wake-up message carrying indication information, the indication information is used for Instructing the site to perform network access;
  • an embodiment of the present application provides a network access apparatus, including:
  • a first receiving module configured to receive information returned by the access point according to the indication information
  • a processing module configured to perform network access according to the returned information.
  • the embodiment of the present application provides a network access method, including:
  • the access point receives the wake-up message sent by the station on the channel in the first channel set;
  • the access point determines that the wakeup identifier in the wakeup message matches the self wakeup identifier, the information is returned to the site according to the indication information in the wakeup message;
  • FIG. 7 is a schematic diagram of a working channel bandwidth of an AP in an application example of the present application.
  • FIG. 1 is a flowchart of a network access method according to an embodiment of the present application. As shown in FIG. 1 , the network access method provided in this embodiment is applied to a station, and a method for performing network access by a station when a wireless communication access point is in a power saving state is given. The method includes the following steps:
  • Step 101 The station sends one or more wake-up messages on a channel in the first channel set, where the wake-up message is used to wake up one or more access points, where the wake-up message carries indication information, the indication The information is used to indicate that the site needs to perform network access;
  • the first channel set may refer to a channel set in which the one or more access points monitor wake-up messages.
  • the wakeup identifier of the one or more access points may be carried in the wakeup message.
  • the site scan type is passive scanning, and the following embodiments are provided in this embodiment:
  • step 102 the station listens to the second predetermined duration on the designated channel, and receives a response frame that is sent by the access point to the user within the second predetermined duration; the response frame carries the connection a working channel of an ingress; the station receives a beacon frame on the working channel;
  • step 103 after the station acquires the beacon frame, the access point is selected to perform network access.
  • the station receiving a beacon frame on the working channel may include: listening to a first predetermined duration for each channel of the working channel, and receiving a beacon frame received within a first predetermined duration When the first predetermined duration arrives, it jumps to the next channel until it jumps to the last channel of the working channel.
  • the access point when the site scan type is passive scanning, the access point sends a working channel notification on the site designated channel, and the station then performs passive scanning on one or more working channels. After all the channels are scanned, the scanning result is processed. If the access point that you want to access or the access point that is suitable for access is found, the subsequent access operation is performed.
  • the station carries a designated channel while waking up the access point, and the access point wakes up and responds to the response frame on the designated channel, indicating that it has woken up and carrying its own working channel in the response frame. In order to achieve the purpose of quickly notifying the station of the working channel of the access point, thereby further reducing the number of station scanning channels.
  • the access point sends a response frame to the station on a predefined channel, where the response frame carries the working channel of the access point;
  • the predefined channel is that the station sends a wake-up message. a channel in the first channel set, or a channel in the second channel set;
  • the first sending module 301 can be configured to send one or more wake-up messages on a channel in the first set of channels by transmitting one or more on a set of channels on which the access point listens for wake-up messages Multiple wakeup messages.
  • the first sending module 301 can be configured to send a wake-up message carrying the wake-up identifier of the one or more access points by sending a wake-up message carrying a wake-up identifier of at least one of the following identifiers:
  • the first receiving module 302 may be configured to receive information returned by the access point according to the indication information by:
  • the predefined Channel is a channel in a first channel set in which the station sends a wake-up message, or a channel in a second channel set;
  • the processing module 303 can be configured to perform network access according to the returned information by selecting an access point to perform network access according to the acquired beacon frame.
  • the processing module 303 can be configured to perform network access according to the returned information by selecting an access point to perform network access according to the acquired probe response frame.
  • the first sending module 301 may be further configured to send a probe request frame on each channel of the working channel, or a probe request frame that does not include a MAC layer load;
  • the first receiving module 302 may be configured to not receive any response frame within a third predetermined duration, and jump to the next channel; if at least one response frame is received, the current channel is monitored until the first predetermined time arrives, and the receiving The probe response frame sent by the access point jumps to the next channel until it jumps to the last channel of the working channel;
  • the processing module 303 can be configured to perform network access according to the returned information by selecting an access point to perform network access according to the acquired probe response frame.
  • This embodiment also provides a site, including the network access device provided by the embodiment shown in FIG.
  • the indication information carried in the awake message may indicate that the scanning type performed by the station is an active scanning or a passive scanning; or the indication information may indicate that the type of the awake message is used for waking up Incoming and performing a wake-up message for network access, and the site will by default perform one of the following scan types: active scan, passive scan.
  • the second sending module 402 may be configured to return information to the station according to the indication information in the wakeup message by sending a beacon frame on the working channel of the access point itself, if the probe request frame is received, or A probe request frame that does not contain a MAC layer load, and sends a probe response frame to the station.
  • the predefined channel is a channel in a first channel set in which the station sends a wake-up message, or a channel in a second channel set; transmitting a beacon frame on the working channel, if A probe response frame is sent to the station to the probe request frame or a probe request frame that does not include a MAC layer load.
  • This embodiment further provides an access point, including the network access apparatus provided in the embodiment shown in FIG.
  • Sites including:
  • a second receiving module configured to receive, on a channel in the first channel set, a wake-up message sent by the first sending module of the station, where the wake-up message carries indication information, where the indication information is used to indicate that a site needs to perform a network Access
  • the second sending module is configured to: when it is determined that the wakeup identifier in the wakeup message matches the self wakeup identifier, return the information to the first receiving module of the site according to the indication information in the wakeup message.
  • Step 604 The station receives information returned by the access point according to the indication information.
  • the AP is configured with a power-saving module.
  • a power-saving module As shown in Figure 8, when the AP does not have uplink and downlink services, the AP can only save the power-saving module and enter the power-saving state.
  • the power saving module of the AP only needs to continuously or non-continuously listen to the wake-up signal from the station on a specific channel.
  • the channel of the AP's power-saving module listening for the wake-up signal is pre-configured by the system. Among them, there are several possible configurations:
  • the site that wakes up the AP may have data to send to the AP, or it may want to access the AP in the power-saving state. This example is mainly for the latter case.
  • a site wants to access an AP but does not receive the AP signal after active scanning or passive scanning, or does not find an AP after active scanning or passive scanning, if it wants to detect whether an AP exists, the site is in the pre-configured AP.
  • the awake message needs to carry a wake-up identifier in the wake-up message to achieve the purpose of waking up the AP.
  • the wake-up message is sent to the awake message on one or more channels in the channel set of the wake-up signal. Or, the site wants to perform network access.
  • At least one of an SSID and a BSSID of the target access point At least one of an SSID and a BSSID of the target access point
  • At least one of a wildcard SSID and a wildcard BSSID At least one of a wildcard SSID and a wildcard BSSID.
  • the receiving address is a unicast address, and carries one or a combination of two or more of the following identifiers of the AP that is desired to be accessed: the SSID, the BSSID, the value obtained by calculating the SSID, and the calculated value obtained by the BSSID;
  • the receiving address is a multicast address or a broadcast address, and carries one or a combination of two or more of the following identifiers of the APs that are desired to be accessed: the SSID, the BSSID, the value obtained by calculating the SSID, and the calculated value obtained by the BSSID. ;
  • the station may send one or more wake-up signals on one channel, or send one or more wake-up signals on each channel in turn, or use parallel transmission.
  • multiple wake-up signals are sent on multiple channels, and the wake-up identifiers carried in each wake-up signal may be the same or different.
  • the configuration of the channel for listening to the wake-up signal, the value of the wake-up identifier, and the sending method of the wake-up message are the same as those of the application example 1.
  • the scan type of the site is active scanning.
  • the station After the station sends the wake-up signal, it goes to the working channel set of the AP and performs active scanning for each channel.
  • the probe request frame or the NDP (Null Data Packet) probe request frame is sent on one channel. If no response frame is received within the T3 time, the jump to the next channel starts to send the probe request frame. If any response frame is received, the T1 duration is always monitored. When the T1 duration arrives, the next channel is transmitted and the probe request frame is started.
  • NDP Null Data Packet
  • the jump to the next channel starts to send the probe request frame, and if any response frame is received, the T1 is always monitored.
  • the duration when the T1 duration arrives, moves to the next channel and starts transmitting the probe request frame.
  • the scan result is processed. If the AP that you want to access or the AP that is suitable for access is found, the subsequent access operations are performed.
  • the configuration of the channel on which the AP listens for the wake-up signal, the value of the wake-up identifier, and the method of transmitting the wake-up message are the same as in the application example 1.
  • the site does not carry the channel information in the wake-up message.
  • the AP sends a response frame to the site by default on the predefined channel, and the response frame carries the working channel of the AP itself.
  • the predefined channel here may be a channel that receives a wake-up message, or a channel in a second set of channels pre-defined by the system.
  • the station will listen to the T2 duration on the channel to receive response frames from one or more APs.
  • the AP may contend to send the response frame one or more times in T2, switch to the working channel when T2 arrives, or switch to the working channel only once.
  • the station sends a probe request frame or an NDP probe request frame to each channel on the working channel indicated by the response frame. If no response frame is received within time T3, the station jumps to the next channel. Send a probe request frame, if it receives any response frame, it will always listen The T1 duration, when the T1 duration arrives, moves to the next channel and starts transmitting the probe request frame.
  • the station may perform AP selection according to at least one of information content and signal reception strength of the response frame, and pre-screen out a plurality of APs that may be further scanned or accessed, and Sending a radio frame, such as a management frame, or a control frame, to the selected one or more APs on the designated channel.
  • a radio frame such as a management frame, or a control frame
  • the site goes to the working channel of the selected one or more APs. If only one AP is selected, the AP can be directly associated with the AP. If multiple APs are selected, active scanning or passive scanning can be performed on the channels on which the APs work, and then the system parameters of the APs are obtained. The selected target accesses the AP and completes network access.
  • the implementation manner is the same as that of the application example 4.
  • Computer storage medium is included for storing information (such as computer readable instructions, data structures, program modules). Volatile and non-volatile, removable and non-removable media implemented in any method or technology, or other data.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer.
  • communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

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

Abstract

Un procédé d'accès au réseau comprend les étapes suivantes : une station transmet, sur des canaux dans un premier ensemble de canaux, un ou plusieurs messages de réveil, les messages de réveil étant utilisés pour réveiller un ou plusieurs points d'accès, les messages de réveil transportant des informations d'indication, les informations d'indication indiquant un besoin de la station d'exécuter un accès au réseau ; la station reçoit des informations renvoyées par les points d'accès en fonction des informations d'indication ; et la station exécute un accès au réseau en fonction des informations renvoyées.
PCT/CN2017/100229 2016-12-29 2017-09-01 Procédé et dispositif d'accès au réseau, et système Ceased WO2018120900A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201611256150.4 2016-12-29
CN201611256150 2016-12-29
CN201710030440.5A CN108260186B (zh) 2016-12-29 2017-01-16 一种网络接入方法及装置、系统
CN201710030440.5 2017-01-16

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WO2018120900A1 true WO2018120900A1 (fr) 2018-07-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113452568A (zh) * 2020-03-25 2021-09-28 上汽通用汽车有限公司 车辆通信方法、通信系统、车辆以及存储介质
CN115379514A (zh) * 2021-05-19 2022-11-22 Oppo广东移动通信有限公司 无线终端设备及其投屏方法、装置及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120178383A1 (en) * 2009-06-26 2012-07-12 Martin Dottling Wake Up Procedure for a Base Station in a Communications Network
CN102685860A (zh) * 2012-05-04 2012-09-19 华为终端有限公司 数据发送、接收的方法与装置
CN104125628A (zh) * 2013-04-27 2014-10-29 华为技术有限公司 一种小小区睡眠控制方法和网络设备
CN105101343A (zh) * 2015-08-11 2015-11-25 北京邮电大学 一种移动终端与无线接入点进行关联的节能方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120178383A1 (en) * 2009-06-26 2012-07-12 Martin Dottling Wake Up Procedure for a Base Station in a Communications Network
CN102685860A (zh) * 2012-05-04 2012-09-19 华为终端有限公司 数据发送、接收的方法与装置
CN104125628A (zh) * 2013-04-27 2014-10-29 华为技术有限公司 一种小小区睡眠控制方法和网络设备
CN105101343A (zh) * 2015-08-11 2015-11-25 北京邮电大学 一种移动终端与无线接入点进行关联的节能方法及装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113452568A (zh) * 2020-03-25 2021-09-28 上汽通用汽车有限公司 车辆通信方法、通信系统、车辆以及存储介质
CN113452568B (zh) * 2020-03-25 2023-05-26 上汽通用汽车有限公司 车辆通信方法、通信系统、车辆以及存储介质
CN115379514A (zh) * 2021-05-19 2022-11-22 Oppo广东移动通信有限公司 无线终端设备及其投屏方法、装置及存储介质

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