WO2013113288A1 - Procédé d'économie d'énergie et dispositif pour un appareil de point d'accès wifi - Google Patents

Procédé d'économie d'énergie et dispositif pour un appareil de point d'accès wifi Download PDF

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Publication number
WO2013113288A1
WO2013113288A1 PCT/CN2013/071300 CN2013071300W WO2013113288A1 WO 2013113288 A1 WO2013113288 A1 WO 2013113288A1 CN 2013071300 W CN2013071300 W CN 2013071300W WO 2013113288 A1 WO2013113288 A1 WO 2013113288A1
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WIPO (PCT)
Prior art keywords
wireless
access point
point device
wireless access
wireless terminal
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PCT/CN2013/071300
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English (en)
Chinese (zh)
Inventor
树贵明
丁志明
方平
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华为终端有限公司
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Publication of WO2013113288A1 publication Critical patent/WO2013113288A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • 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 invention relates to a method and a device for saving power of a wireless fidelity WiFi access point device.
  • the application claims the priority of the Chinese patent application filed on February 3, 2012, the Chinese Patent Application No. 201210024398. Included in this application.
  • the present invention relates to the field of wireless communications, and in particular, to a method and apparatus for power saving a WiFi access point device. Background technique
  • the wireless access point device can use wireless communication technology to connect the wireless local area network, such as a current WiFi (Wireless Fidelity) access point device, a Bluetooth device, etc., wherein the AP in the WiFi access point device ( Access Point, access point) As an example, most wireless access devices are deployed in a fixed deployment mode and powered by utility power.
  • a current WiFi Wireless Fidelity
  • a Bluetooth device etc.
  • the AP in the WiFi access point device Access Point, access point
  • most wireless access devices are deployed in a fixed deployment mode and powered by utility power.
  • the current power saving methods mainly include the following two types:
  • the wireless access point device can detect its own power supply mode. When it finds that it is powered by a battery, it reduces the transmission power to extend the battery life. If it finds that it is the mains supply, it increases the transmission. Power to increase coverage.
  • the maximum transmission power adjustment device is set on the wireless access point device, and the user can set the maximum transmission power of the AP according to actual needs to save power.
  • the coverage of the wireless access point device is reduced due to the decrease of the transmission power.
  • the user needs to estimate the required transmission power according to the usage scenario, and perform the Manual settings, poor user experience. Summary of the invention
  • a method for power saving a wireless access point device comprising:
  • the preset power saving operation includes:
  • Extending a transmission period of the beacon frame setting to transmit the beacon frame at a first power, stopping responding to any message sent by the unconnected wireless terminal, and according to the wireless terminal connected to the wireless access point device
  • the allocated wireless local area network channel bandwidth determines a sleep time of the wireless local area network communication module of the wireless access point device or determines a wireless local area network of the wireless access point device according to the wide area network communication bandwidth obtained by the wireless access point device Sleep time of the communication module to reduce power consumption;
  • the first power is a maximum transmission power among transmission powers used when the wireless terminal connected to the wireless access point device communicates with the access point device.
  • a device for power saving of a wireless access point device comprising:
  • connection module configured to receive a request message for establishing a connection from the first wireless terminal, to enable the wireless access point device to establish a connection with the first wireless terminal;
  • a power-saving operation execution module configured to: after establishing a connection with the first wireless terminal, if the number of wireless terminals connected to the wireless access point device reaches a preset maximum number of connections, performing preset At least one of power saving operations;
  • the preset power saving operation includes:
  • Extending a transmission period of the beacon frame setting to transmit the beacon frame at a first power, stopping responding to any message sent by the unconnected wireless terminal, and according to the wireless terminal connected to the wireless access point device
  • the allocated wireless local area network channel bandwidth determines a sleep time of the wireless local area network communication module of the wireless access point device or determines a wireless local area network of the wireless access point device according to the wide area network communication bandwidth obtained by the wireless access point device Sleep time of the communication module to reduce power consumption;
  • the first power is a maximum transmission power among transmission powers used when the wireless terminal connected to the wireless access point device communicates with the access point device.
  • the technical solution provided by the embodiment of the present invention has the beneficial effects of: changing the working mode of the existing wireless access point device and extending the wireless access when the maximum number of connections of the preset wireless access point device is reached.
  • the transmission period of the beacon frame of the point device is set to be used when communicating with the wireless terminal that has been connected to the wireless access point device.
  • the wide area network communication bandwidth obtained by the point device determines the sleep time of the wireless local area network communication module of the wireless access point device to reduce power consumption, and can extend the use time of the portable wireless access point device.
  • FIG. 1 is a schematic flowchart of a method for saving power of a wireless access point device according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for saving power of a WiFi access point device according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of power consumption of an AP after channel allocation according to Embodiment 2 of the present invention
  • FIG. 1 is a schematic flowchart of a method for saving power of a wireless access point device according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for saving power of a WiFi access point device according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of power consumption of an AP after channel allocation according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic diagram of a second power consumption of an AP after performing channel allocation according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic structural diagram of an apparatus for power saving of a wireless access point device according to Embodiment 3 of the present invention
  • FIG. 6 is a second schematic structural diagram of an apparatus for power saving of a wireless access point device according to Embodiment 3 of the present invention
  • FIG. 4 is a schematic diagram of a second power consumption of an AP after performing channel allocation according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic structural diagram of an apparatus for power saving of a wireless access point device according to Embodiment 3 of the present invention
  • FIG. 6 is a second schematic structural diagram of an apparatus for power saving of a wireless access point device according to Embodiment 3 of the present invention
  • FIG. 7 is a third structural diagram of an apparatus for power saving of a wireless access point device according to Embodiment 3 of the present invention. detailed description
  • the first embodiment provides a method for saving power of a wireless access point device, and the method includes the following steps:
  • Step 102 Perform at least one of a preset reduced power consumption operation when the number of wireless terminals that have been connected to the wireless access point device after the connection with the first wireless terminal reaches a preset maximum number of connections;
  • the foregoing preset power consumption reduction operations include:
  • Extending the transmission period of the beacon frame setting the beacon frame to transmit the first power, and stopping responding to the unconnected wireless terminal Determining a sleep time of the wireless local area network communication module of the wireless access point device or according to the wireless access point device according to any message sent, and according to a wireless local area network channel bandwidth allocated to the wireless terminal connected to the wireless access point device
  • the obtained wide area network communication bandwidth determines a sleep time of the wireless local area network communication module of the wireless access point device to reduce power consumption
  • the first power is the maximum transmission power among the transmission powers used when the wireless terminal connected to the wireless access point device communicates with the access point device.
  • the embodiment provides a method for saving power of a wireless access point device. When the maximum number of connections of the preset wireless access point device is reached, the working mode of the existing wireless access point device is changed, and the wireless device is extended. The transmission period of the beacon frame of the access point device is set to transmit the beacon frame with the largest power among the communication powers used for communication with the wireless terminal connected to the wireless access point device, and the wireless terminal that stops responding is not connected.
  • any of the messages, and determining the wireless of the wireless access point device based on a wireless local area network channel bandwidth allocated to the wireless terminal that has been connected to the wireless access point device or a wide area network communication bandwidth obtained by the wireless access point device The sleep time of the LAN communication module to reduce power consumption can extend the usage time of the portable wireless access point device.
  • the embodiment 2 provides a method for power saving of the wireless access point device, which is improved on the basis of the embodiment 1.
  • the wireless access point device corresponding to the WiFi wireless local area network is used as the WiFi.
  • An access point device (AP) is used as an example.
  • the wireless terminal connected to the AP is called STA (Station).
  • the wide area network may be GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), LTE (Long Term Evolution), WiMAX ( Worldwide Interoperability for Microwave) Access, global microwave interconnection access)
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • WiMAX Worldwide Interoperability for Microwave
  • the macro cellular mobile communication network of wireless communication technology can also be a fixed communication network or a fiber-optic communication network using IP communication technology.
  • the AP in the WiFi network is used as an example.
  • the AP in the WiFi network is only one type of the wireless access point device.
  • the wireless access point device may also be a Bluetooth.
  • a device, a Zigbee-based wireless access point device, etc., and the above devices are applicable to the methods provided by the embodiments of the present invention.
  • the AP used in this embodiment has the function of setting the maximum number of connections of the user. By setting the maximum number of connections, the AP can only provide services to the STAs of the maximum number of connections supported by the AP.
  • the AP can provide two ways for the user to set the maximum number of connections:
  • the AP is provided with a sliding or rotary switch with a digital sign, so that the user can set the maximum number of connections by sliding or rotating the switch;
  • the AP is provided with a display screen, and the user is provided with a management interface for setting the maximum number of connections through the display screen.
  • the AP can also set the maximum number of connections by the user in other manners, which is not limited in this embodiment of the present invention.
  • the foregoing network access request message includes:
  • step 203 determining whether the number of connected STAs has reached the maximum number of connections set by the user, and if so, executing step 206, if not, performing step 204;
  • step 204 in response to the network access request message, perform the operation of the first STA normal network access, and perform step 205;
  • step 205 Determine whether the maximum number of connections set by the user is reached. If yes, go to step 206. If not, end the process.
  • step 207 determining whether the AP has entered the power saving mode, and if so, ending the process, if not, executing step 207;
  • the AP enters the power saving mode, that is, performs a preset power saving operation.
  • the AP enters a power saving mode, and performs a preset power saving operation, and ends the process.
  • the preset power saving operation includes at least one of the following four operations:
  • beacon frame (Beacon frame)
  • the AP extends the frame transmission period by specifying a new beacon frame period parameter by a BSS Parameter Change element in the beacon frame.
  • the first power is the maximum power of the communication power used when the STA connected to the AP communicates.
  • any message sent by the unconnected STA includes at least one of the following messages.
  • Proactive Request Proactive Request
  • STA Session Initiation Protocol
  • Association Request Proactive Request
  • the AP-side communicates with the STA through the WiFi wireless technology to form a wireless local area network.
  • the AP needs to allocate communication bandwidth according to the QOS (Quality of Service) of the STA to meet the service requirements of the STA.
  • QOS Quality of Service
  • the AP itself passes Wide area network (such as macro cell wireless technology)
  • Wide area network such as macro cell wireless technology
  • the AP itself also needs to obtain a certain communication bandwidth from the base station of the wide area network.
  • the AP periodically divides the channel media into a CP (Contention Period) and a CFP (Contention Free Period), and the competition period is used for the STA.
  • the channel is equally occupied in a competitive manner.
  • the AP uses the AP to control and coordinate the use of the channel media by the AP.
  • the competition period and the non-competition period are alternately allocated.
  • the allocation information is indicated by the beacon frame containing the DTIM, and the DTIM is included. When the beacon frame is sent, all connected STAs will exit sleep to listen to the beacon frame.
  • the AP alternately operates in the state of listen or sending.
  • the transmission period BI of multiple beacon frames can be hibernated during the competition period to save power. If the AP does not have a STA that schedules a service period during the non-competition period, it can continuously sleep multiple BIs throughout the CFP to save more power. As can be seen from the above description, in the current channel allocation mechanism, the STA can save power by sleeping, but the AP cannot enter sleep to save power. In this embodiment, two methods are provided for channel allocation by the channel access mechanism supported by the connected STA to determine the sleep time of the AP to reduce power consumption:
  • the communication rate used by the STA and the channel access mechanism used by the STA connected to the AP determine the size of the CP and/or CFP allocated by the channel to determine the sleep time of the WiFi communication module of the AP according to the size of the CP and/or CFP, and Broadcasting the CP and/or CFP in the beacon frame, and the sleep time information of the AP; or,
  • the communication bandwidth obtained by the AP in the wide area network is used to determine the upper limit of the sleep time of the AP's WiFi communication module.
  • the method 1 is as follows:
  • the AP connects to one STA in the STA, and performs the following operations according to the channel access mechanism supported by the second STA. Make:
  • the transmission of the beacon frame is determined.
  • the size of the CP and the CFP in the period BI and allocates an SP (Service Period) (for example, CF-Poll) to the second STA in the CFP, so that the AP's WiFi communication module removes the SP in the CFP. Enter sleep to save power during the time;
  • SP Service Period
  • the size of the CP is determined by the sum of the service bandwidths of the STAs that use the DCF in the connected STAs, but the upper limit of the sum of the service bandwidths of the STAs using the DCFs in the connected STAs for calculating the CP cannot exceed the AP.
  • the communication bandwidth obtained in the wide area network, and the remaining time period in the BI is taken as the CFP.
  • T w ( W c *T b ) / ⁇ ;
  • Wc is the sum of the service bandwidth of the STAs that use the DCF channel access mechanism in the connected STAs, and is not greater than the uplink bandwidth of the AP and the wide area network
  • T b is the transmission period of the beacon frame
  • ⁇ « is the connected AP.
  • the STA provides the bandwidth of the WiFi air interface.
  • the bandwidth of the WiFi air interface provided by the AP for the connected STAs is specifically the sum of the applications that the STAs connected to the AP apply to the AP according to their current service requirements (such as voice service or video service). .
  • the size of the CP is T w
  • ⁇ « is the bandwidth of the WiFi air interface provided by the AP for the connected STA
  • Sw is the communication rate used by the AP and the connected STA.
  • the communication rate used by the AP and the connected STA is negotiated between the connected STA and the AP, and is determined by the physical layer capability and communication environment factor of the connected STA and the AP.
  • the second STA When the second STA only supports the DCF channel access mechanism, determine the size of the CP in the beacon frame transmission period according to the uplink bandwidth of the AP and the wide area network, so that the WiFi communication module of the AP transmits the beacon frame. Entering sleep during the period other than CP to save power;
  • the second STA When the second STA only supports the PCF channel access mechanism, determine the size of the CFP in the beacon frame transmission period according to the communication bandwidth of the AP and the wide area network, so that the AP's WiFi communication module transmits the beacon frame. During the period, the system enters sleep to save power in addition to the CFP.
  • the second STA may be any STA connected to the AP, including the foregoing first STA.
  • the channel is available according to the WLAN channel bandwidth allocated by the AP to the connected STA or the communication bandwidth obtained by the AP in the wide area network, and the communication rate used by the connected STA and the channel access mechanism supported by the connected STA.
  • the time period and the unavailable time period, and the unavailable time period information is broadcasted through the beacon frame, so that the AP's WiFi communication module enters a sleep state during the unavailable period to reduce power consumption.
  • the method 2 is specifically: determining a channel access mechanism supported by the second STA that is connected to the AP in the AP, where the second STA is one STA connected to the AP, and according to the second STA
  • the supported channel access mechanisms perform the following operations:
  • the sum of the service bandwidths of the STAs using the DCF channel access mechanism in the connected STAs determines the CP size in the transmission period BI of the beacon frame, allocates the service time period SP to the connected STA, uses the SP as the CFP, adds the CP and the CFP as the available time period 1, and sets the beacon frame.
  • the time other than 1 in the transmission period is used as the unavailable time period T 2 , so that the WiFi communication module of the UI enters sleep in T 2 to save power;
  • the second STA when the second STA only supports the DCF channel access mechanism, determining the size of the CP in the transmission period of the beacon frame according to the communication bandwidth obtained in the wide area network, and using the CP as the available time period 1, the letter The time other than 1 in the transmission period of the frame is regarded as the unavailable time period T 2 , so that the WiFi communication module of the UI enters sleep in T 2 to save power;
  • the second STA When the second STA only supports the PCF channel access mechanism, determine the size of the CFP in the transmission period of the beacon frame according to the communication bandwidth obtained in the wide area network, and use the CFP as the available time period 1, and the beacon The time other than 1 in the transmission period of the frame is used as the unavailable time period T 2 , so that the AP's WiFi communication module enters sleep in ⁇ 2 to save power.
  • the available time period of the channel further includes a CP and/or a CFP, and the unavailable time period of the channel includes a sleep time of the WiFi communication module of the AP.
  • the second STA may be any STA connected to the AP, including the foregoing first STA.
  • the method may further include:
  • the AP exits the power saving mode and resumes providing network discovery services to the non-connected STAs. It should be noted that the above method is for explaining the implementation scheme by dividing one BI into an available time period and an unavailable time period, and further including CP and CFP in the available time period.
  • the AP may first divide the channel usage time into a larger available time period and an unavailable time period, wherein the calculation method of the available time period is the same as the calculation method of the CP and the CFP described above, for example, the AP may be used for each
  • the bandwidth of the WLAN channel allocated by the connected STA is divided by the corresponding communication rate to obtain the available time period of the AP within 1 second, or the communication bandwidth obtained by the AP in the wide area network is divided by the rate at which the AP communicates with the connected STA.
  • Channel bandwidth and the communication rate used by the connected STAs, the channel access mechanism used by the connected STAs, the CP and/or CFP of the channel assignment, etc.; and each CP, CFP may further include one or more BIs
  • the certain BI determined in this way may all be a CP or a CFP, and the AP broadcasts the allocation information of the available time period, the unavailable time period, the CP, and the CFP through the beacon frame.
  • the WiFi access point device includes a WiFi communication module and a wide area network communication module, wherein the WiFi access point device is used for communication between the WiFi access point device and the connected STA, and the WAN communication module is used.
  • the WiFi access point device communicates with the wide area network.
  • the method may further include:
  • the method includes:
  • the method includes:
  • the embodiment provides a method for saving power of a WiFi access point device.
  • the maximum number of connected WiFi access point devices is reached, the working mode of the existing WiFi access point device is changed, and the WiFi is extended.
  • the transmission period of the beacon frame of the access point device is set to transmit the beacon frame with the largest power among the communication powers used when communicating with the STA connected to the wireless access point device, and stop transmitting the unsent STA.
  • the embodiment provides a device for saving power of a wireless access point device, where the device includes: a connection module 301, configured to receive a request message for establishing a connection from a first wireless terminal, to enable wireless access. Establishing a connection between the point device and the first wireless terminal;
  • the power-saving operation execution module 302 is configured to perform a preset power-saving operation when the number of wireless terminals that have been connected to the wireless access point device reaches a preset maximum connection number after establishing a connection with the first wireless terminal. At least one item;
  • the preset power saving operation includes:
  • Extending the transmission period of the beacon frame setting the transmission of the beacon frame with the first power, stopping any message sent by the unconnected wireless terminal, and according to the wireless local area network channel allocated to the wireless terminal connected to the wireless access point device
  • the bandwidth determines a sleep time of the wireless local area network communication module of the wireless access point device or determines a sleep time of the wireless local area network communication module of the wireless access point device according to the wide area network communication bandwidth obtained by the wireless access point device to reduce power consumption;
  • the first power is the maximum transmission power among the transmission powers used when the wireless terminal connected to the wireless access point device communicates with the access point device. Further, as shown in FIG. 6, the foregoing apparatus further includes:
  • the first determining module 303 is configured to determine whether the number of connected wireless terminals reaches a preset maximum number of connections before the power saving operation executing module 302 performs at least one of the preset power saving operations.
  • the foregoing apparatus further includes:
  • the quantity setting module 304 is configured to receive the maximum number of connections set by the user for the WiFi access point device before the connection module 301 responds to the network access request message from the first wireless terminal.
  • any message sent by the unconnected wireless terminal includes at least one of the following: an active scan request Probe Request message, an authentication Authentication message, or a connection request Association Request message sent by the unconnected wireless terminal.
  • the power saving operation execution module 304 includes:
  • the first channel allocating unit is specifically configured to use the wireless local area network channel bandwidth allocated to the wireless terminal connected to the wireless access point device and the communication rate used by the wireless terminal connected to the wireless access point device, and the wireless The channel access mechanism used by the wireless terminal connected to the access point device determines the contention period of the channel allocation CP and / Or the size of the non-competition CFP, in order to determine the sleep time of the wireless LAN communication module of the wireless access point device according to the size of the CP and/or CFP, and broadcast the CP and/or CFP in the beacon frame, and the wireless access point Sleep time information of the wireless LAN communication module of the device.
  • the first channel allocation unit is specifically configured to determine a channel access mechanism supported by each of the second wireless terminals that are connected to the wireless access point device;
  • the second wireless terminal supports both the point coordination function PCF and the distributed coordination function DCF, determining the size of the CP according to the allocated wireless local area network channel bandwidth of the second wireless terminal and the communication rate used by the second wireless terminal, and The time period other than the CP in the transmission period of the beacon frame is used as the CFP, and the service time period SP is allocated in the CFP, so that the wireless access point device sleeps in the time other than the SP in the CFP to save power;
  • the second wireless terminal When the second wireless terminal only supports the DCF, determining the size of the CP according to the allocated wireless local area network channel bandwidth of the second wireless terminal, so that the wireless access point device removes the time other than the CP in the transmission period of the beacon frame. Dormant to save power;
  • the wireless access point device When the second wireless terminal only supports the PCF, determining the size of the CFP according to the allocated wireless local area network channel bandwidth of the second wireless terminal, so that the wireless access point device removes the time other than the CFP in the transmission period of the beacon frame. Sleep to save power.
  • the power saving operation execution module 304 includes:
  • the second channel allocating unit is specifically configured to use the wide area network communication bandwidth obtained by the wireless access point device, and the communication rate used by the wireless terminal connected to the wireless access point device in the wireless local area network, and the wireless access
  • the channel access mechanism used by the wireless terminal connected to the device determines the size of the CP and/or CFP allocated by the channel, so as to determine the sleep time of the wireless LAN communication module of the wireless access point device according to the size of the CP and/or the CFP, and
  • the CP and/or CFP are broadcast in the beacon frame, and the sleep time information of the wireless communication module of the wireless access point device.
  • the second channel allocating unit is specifically configured to determine a channel access mechanism supported by each of the second wireless terminals that have been connected to the wireless access point device;
  • the second wireless terminal supports the point coordination function PCF and the distributed coordination function DCF, determining the size of the CP according to the wide area network communication bandwidth obtained by the second wireless terminal and the communication rate used by the second wireless terminal in the wireless local area network, And the time period other than the CP in the sending period of the beacon frame is used as the CFP, and the service time period SP is allocated in the CFP, so that the wireless access point device sleeps in the CFP time other than the SP to save power.
  • the second wireless terminal only supports the DCF, determining the size of the CP according to the wide area network communication bandwidth obtained by the second wireless terminal, so that the wireless access point device performs the time other than the CP in the sending period of the beacon frame. Sleep to save power;
  • the second wireless terminal When the second wireless terminal only supports the PCF, determining according to the wide area network communication bandwidth obtained by the second wireless terminal The size of the CFP causes the wireless access point device to sleep during the transmission period of the beacon frame in addition to the CFP to save power.
  • the power saving operation execution module 302 may include:
  • a third channel allocation unit specifically configured to: according to a wireless local area network channel bandwidth allocated by the wireless terminal connected to the wireless access point device or a wide area network communication bandwidth obtained by the wireless access point device, and with the wireless access
  • the communication rate used by the wireless terminal connected to the point device, the channel access mechanism used by the wireless terminal connected to the wireless access point device determines the available time period and the unavailable time period of the channel, and broadcasts the unavailable time period information through the beacon frame. , so that the wireless access point device enters a sleep state during the unavailable period to reduce power consumption.
  • the available time period of the foregoing channel further includes a CP and/or a CFP
  • the unavailable time period of the channel includes a sleep time of the wireless local area network communication module of the wireless access point device.
  • the above apparatus may further include:
  • a modification module configured to receive indication information that the user modifies the maximum number of connections of the wireless access point device, and determine the maximum number of connections after modification;
  • the second determining module is configured to determine whether the number of wireless terminals currently connected to the wireless access point device has reached the modified maximum number of connections.
  • the above apparatus may further include:
  • the third judging module is configured to determine, when the second judging module determines that the number of wireless terminals that the wireless access point device currently connects with the wireless access point device reaches the modified maximum number of connections, determine whether the preset has been executed currently Power saving operation;
  • the notification module is configured to notify the power saving operation execution module to perform at least one of the preset power saving operations when the third determining module determines that the preset power saving operation has been performed.
  • the above apparatus may further include:
  • the fourth judging module is configured to: when the second judging module determines that the number of wireless terminals that the wireless access point device currently connects with the wireless access point device does not reach the modified maximum number of connections, determine whether the preset has been executed currently Power saving operation;
  • the stopping module is configured to notify the power saving operation execution module to stop the preset power saving operation when the fourth determining module determines that the preset power saving operation has been performed.
  • the embodiment provides a device for power saving of a wireless access point device. When the maximum number of connections of the preset wireless access point device is reached, the working mode of the existing wireless access point device is changed, and the wireless device is extended. The transmission period of the beacon frame of the access point device is set to be used when communicating with the wireless terminal connected to the wireless access point device.
  • the wide area network communication bandwidth obtained by the point device determines the sleep time of the wireless local area network communication module of the wireless access point device to reduce power consumption, and can extend the use time of the portable wireless access point device.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé d'économie d'énergie et un dispositif pour un appareil de point d'accès WiFi appartenant au domaine technique des communications sans fil. Le procédé de la présente invention consiste à : lorsqu'on atteint un nombre maximal de connexions prédéfinie de l'appareil de point d'accès sans fil, changer le mode de fonctionnement du présent appareil de point d'accès sans fil, étendre la période de transmission de trame de balise de l'appareil de point d'accès sans fil, transmettre la trame balise comportant une puissance maximale utilisée par des terminaux sans fil pendant les communications, les terminaux sans fil étant connectés à l'appareil de point d'accès sans fil, arrêter de répondre à l'un quelconque des messages émis à partir de terminaux sans fil déconnectés et sur la base de la largeur de bande de canal de réseau local sans fil distribué pour les terminaux sans fil connectés avec le point d'accès sans fil ou une largeur de bande de communication de réseau longue portée obtenue par l'appareil de point d'accès sans fil, déterminer le temps de veille du module de communication de réseau local sans fil de l'appareil de point d'accès sans fil, de manière à réduire la consommation d'énergie et étendre le temps d'utilisation d'appareil de point d'accès sans fil portable.
PCT/CN2013/071300 2012-02-03 2013-02-02 Procédé d'économie d'énergie et dispositif pour un appareil de point d'accès wifi WO2013113288A1 (fr)

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CN201210024398.3A CN103249120B (zh) 2012-02-03 2012-02-03 一种无线保真WiFi接入点设备省电的方法及装置

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