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WO2017008303A1 - 一种数据传输方法、接入点及站点 - Google Patents

一种数据传输方法、接入点及站点 Download PDF

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Publication number
WO2017008303A1
WO2017008303A1 PCT/CN2015/084232 CN2015084232W WO2017008303A1 WO 2017008303 A1 WO2017008303 A1 WO 2017008303A1 CN 2015084232 W CN2015084232 W CN 2015084232W WO 2017008303 A1 WO2017008303 A1 WO 2017008303A1
Authority
WO
WIPO (PCT)
Prior art keywords
station
channel
access point
bandwidth
power saving
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/CN2015/084232
Other languages
English (en)
French (fr)
Inventor
李彦淳
蓝洲
李云波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BR112018000842-7A priority Critical patent/BR112018000842B1/pt
Priority to KR1020187004363A priority patent/KR102053068B1/ko
Priority to CN201580078245.9A priority patent/CN107432005B/zh
Priority to EP24176363.0A priority patent/EP4460111A3/en
Priority to JP2018501994A priority patent/JP6534488B2/ja
Priority to MX2018000631A priority patent/MX2018000631A/es
Priority to AU2015401995A priority patent/AU2015401995C1/en
Priority to MYPI2018700159A priority patent/MY203629A/en
Priority to CA3239093A priority patent/CA3239093A1/en
Priority to EP15898030.0A priority patent/EP3310106B1/en
Priority to PCT/CN2015/084232 priority patent/WO2017008303A1/zh
Priority to CN202010981614.8A priority patent/CN112333775B/zh
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to RU2018104832A priority patent/RU2687162C1/ru
Priority to CA2992630A priority patent/CA2992630A1/en
Priority to EP22169422.7A priority patent/EP4096310B1/en
Publication of WO2017008303A1 publication Critical patent/WO2017008303A1/zh
Priority to US15/870,137 priority patent/US20180139696A1/en
Anticipated expiration legal-status Critical
Priority to ZA2018/00862A priority patent/ZA201800862B/en
Priority to US16/862,434 priority patent/US11350359B2/en
Priority to US17/730,990 priority patent/US12114258B2/en
Priority to US18/821,727 priority patent/US20250071675A1/en
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • H04W28/0221—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices power availability or consumption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • 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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/22—Manipulation of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • 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 invention relates to the field of communications in the technical field, and in particular, to a data transmission method, an access point, and a station.
  • the current communication system forces all stations (STAs) to support the 80 MHz transmission bandwidth mode.
  • STAs stations
  • the station can complete the data transmission in a short time, thereby saving data transmission time and reducing the power of data transmission and reception.
  • the large bandwidth used for transmitting data is idle for most of the time.
  • the station continuously listens to the channel, so that when there is data transmission demand on the uplink and downlink, the site is based on The detected channel state determines whether data transmission is possible.
  • the channel state includes channel idleness and channel busy, and the process of continuously listening to a wider channel undoubtedly greatly increases the power consumption of the site, and the site anti-interference ability is also weak.
  • the station switches the 80 MHz transmission bandwidth mode supported by the station to the bandwidth power saving mode ( Bandwidth Power Saving Mode (BW PS mode), and informs the access point of the bandwidth mode currently supported by the access point by transmitting an Operating Mode Notification frame, where the bandwidth power saving mode refers to the available bandwidth of the station is less than A bandwidth mode of 80 MHz (for example, available bandwidth of 20 MHz, 40 MHz, or 60 MHz), and in the bandwidth power saving mode, the channel through which the station transmits data includes a primary channel.
  • BW PS mode Bandwidth Power Saving Mode
  • the bandwidth power saving mode site occupies the primary channel, so during communication with the site occupying the primary channel, the access point can only transmit data with this one site, and the access point can only transmit it using the working channel of the site.
  • the present application provides a data transmission method, an access point, and a station, and aims to solve the problem that the bandwidth power saving mode site occupies the primary channel, so that the access point can only communicate with the site occupying the primary channel during communication with the site.
  • This site transmits data, which leads to a problem of low resource utilization of the access point.
  • a first aspect of the present application provides a data transmission method, including:
  • the access point performs data transmission with the first station by using a working channel of the first station, where the first station enables a bandwidth power saving mode, and the working channel of the first station is an available channel of the first station;
  • the access point performs data transmission with the first station by using the working channel of the first station
  • the access point performs data transmission with the second station by using a working channel of the second station.
  • the working channel of the first station and the working channel of the second station form all or a portion of the available channels of the access point.
  • the method before the access point uses the working channel of the first site to perform data transmission with the first site, the method further includes: the accessing Pointing to indicate that the first station enables the bandwidth power saving mode;
  • the process of the access point indicating that the first site enables the bandwidth power saving mode specifically includes:
  • the access point sends a first signaling, where the first signaling is used to indicate that the bandwidth power saving mode is enabled and a first channel set available to the first station, where the channel in the first channel set is The total bandwidth is less than the bandwidth of the available channels of the access point.
  • the method before the access point uses the working channel of the first site to perform data transmission with the first site, the method further includes:
  • the access point sends a request response to the first station, where the request response carries a third channel set, and a total bandwidth of a channel in the third channel set is smaller than a bandwidth of an available channel of the access point.
  • the method further includes:
  • the The ingress uses the working channel of the first station to perform data transmission with the first station, including:
  • the access point receives, by using the working channel of the first station, data that is sent by the first station by using a preset sending time, where the preset sending time is specified by the access point;
  • the access point uses the working channel of the second site to perform data transmission with the second site, including:
  • the access point receives, by using a working channel of the second station, data sent by the second station by using the preset sending time as a starting time;
  • the working channel of the first station is a subset of the channel set of the first station in the bandwidth power saving mode; when the second station enables the bandwidth power saving mode, the working channel of the second station For a subset of the set of channels of the second station in the bandwidth power saving mode, the working channel of the first station does not overlap with the working channel of the second station.
  • a fifth implementation manner of the first aspect before the access point uses the working channel of the first site to perform data transmission with the first site, :
  • the accessing, by the access point, using the working channel of the first site to perform data transmission with the first site includes:
  • the access point sends a physical layer protocol data unit PPDU to the first station by using a working channel of the first station, where the PPDU includes service data, and an indication letter for indicating a data receiving manner of the first station.
  • a preamble for indicating a working channel of the first station and control signaling for indicating a data transmission resource indication of the first station;
  • the access point uses the working channel of the second site to perform data transmission with the second site, including:
  • the access point sends a PPDU to the second station by using the working channel of the second station, where the PPDU includes service data, indication signaling for indicating a data receiving manner of the second station, and a preamble of the working channel of the second station;
  • the working channel of the first station is a subset of the channel set of the first station in the bandwidth power saving mode; when the second station enables the bandwidth power saving mode, the working channel of the second station For a subset of the channel set of the second station in the bandwidth power saving mode, the subset of the channel set of the second station in the bandwidth power saving mode is the working channel of the second station, the first The working channel of the station does not overlap with the working channel of the second station.
  • the first aspect or the first implementation of the first aspect or the second implementation of the first aspect or the third implementation of the first aspect or the fourth implementation of the first aspect or the first aspect A fifth implementation manner, or a sixth implementation manner of the first aspect, in the seventh implementation manner of the first aspect, the number of the second sites is one or more.
  • a second aspect of the present application provides a data transmission method, including:
  • the site enables the bandwidth power saving mode
  • the station that enables the bandwidth power saving mode utilizes a working channel to perform data transmission with an access point, where the working channel is an available channel of the station in the bandwidth power saving mode,
  • the access point is configured to perform data transmission with the second station by using a working channel of the second station, where the data is transmitted with the station, the working channel of the first station and the second
  • the working channel of the station constitutes all or part of the available channels of the access point.
  • the station enables a bandwidth power saving mode, including:
  • the station Sending, by the station, a request to the access point, where the request carries a fourth channel set, where the fourth channel set is an available channel that the station applies to the access point, and the fourth channel set
  • the total bandwidth of the channel is less than the bandwidth of the available channel of the access point
  • the station receives a request response sent by the access point, where the request response carries a fifth channel set, and a total bandwidth of a channel in the fifth channel set is smaller than a bandwidth of an available channel of the access point.
  • the site enables a bandwidth power saving mode, including:
  • the method includes: the station sending an update request to the access point, where the update request carries a seventh channel set, where a total bandwidth of a channel in the seventh channel set is smaller than a bandwidth of an available channel of the access point, where The seventh channel set is different from the channel set before the station update in the bandwidth power saving mode;
  • the station receives a response of the access point to an instruction of the update request, the response being used to indicate modifying a channel set of the station to the seventh channel set.
  • a third aspect of the present application provides an access point, including:
  • a first data transmission unit configured to perform data transmission with the first station by using a working channel of the first station, where the first station enables a bandwidth power saving mode, and the working channel of the first station is the first station Available channel;
  • a second data transmission unit configured to perform data transmission with the second station by using a working channel of the second station in a case of performing data transmission with the first station by using the working channel of the first station,
  • the working channel of the first station and the working channel of the second station constitute all or part of the available channels of the access point.
  • the method further includes:
  • a signaling sending unit configured to send first signaling to the first station before using the working channel of the first station to perform data transmission with the first station, where the first signaling is used to indicate to enable The bandwidth power saving mode, and the first channel set available to the first station, the total bandwidth of the channels in the first channel set is less than the bandwidth of the available channels of the access point.
  • the method further includes:
  • a receiving unit configured to receive, after the data channel of the first station is used for data transmission with the first station, a request for enabling a bandwidth power saving mode, where the request carries a second channel set, where The second channel set is an available channel in the bandwidth power saving mode applied by the first station to the access point, and a total bandwidth of the channel in the second channel set is smaller than an available channel of the access point.
  • a response unit configured to send a request response to the first station, where the request response carries a third channel set, and a total bandwidth of the channel in the third channel set is smaller than a bandwidth of an available channel of the access point.
  • the method further includes:
  • an update instruction sending unit configured to send, to the station in the bandwidth power saving mode, an update instruction, where the update instruction is used to indicate that the access point allocates an updated channel set for the station in the bandwidth power saving mode, where The total bandwidth of the channels in the updated channel set is less than the bandwidth of the available channels of the access point, the updated channel set and the bandwidth power section The channel set before the site update in the provincial mode is different.
  • a data transmission unit is configured to perform data transmission with the first station by using a working channel of the first station, including:
  • the first data transmission unit is configured to receive, by using a working channel of the first station, data that is sent by the first station by using a preset sending time, where the preset sending time is used by the accessing Point regulation
  • the second data transmission unit is used for a working channel of the second station, and data transmission with the second station includes:
  • the second data transmission unit is configured to: receive, by using a working channel of the second station, data sent by the second station by using the preset sending time as a starting time;
  • the working channel of the first station is a subset of the channel set of the first station in the bandwidth power saving mode; when the second station enables the bandwidth power saving mode, the working channel of the second station For a subset of the set of channels of the second station in the bandwidth power saving mode, the working channel of the first station does not overlap with the working channel of the second station.
  • the method further includes:
  • a trigger frame sending unit configured to send, to the first station, a work for indicating the work of the first site before the first data transmission unit performs data transmission with the first station by using the working channel of the first station Transmitting, to the second station, the first triggering frame, and the second data transmission unit, using the working channel of the second station, to send data to the second station to indicate the second site a second trigger frame of the working channel, where the first trigger frame is used to trigger the first station to send data with the preset sending time as a start time, and the second trigger frame is used to trigger the second trigger frame The station sends data with the preset sending time as the starting time.
  • the first data transmission unit is configured to perform data transmission with the first station by using a working channel of the first station, including:
  • the first data transmission unit is configured to send, by using a working channel of the first station, a physical layer protocol data unit (PPDU) to the first station, where the PPDU includes service data, and is used to indicate the first station.
  • PPDU physical layer protocol data unit
  • the second data transmission unit is configured to use the working channel channel of the second station to perform data transmission with the second station, including:
  • the second data transmission unit is configured to send, by using a working channel of the second station, a PPDU to the second station, where the PPDU includes service data, and an indication for indicating a data receiving manner of the second station. Signaling and a preamble for indicating a working channel of the second station;
  • the working channel of the first station is a subset of the channel set of the first station in the bandwidth power saving mode; when the second station enables the bandwidth power saving mode, the working channel of the second station For a subset of the channel set of the second station in the bandwidth power saving mode, the subset of the channel set of the second station in the bandwidth power saving mode is the working channel of the second station, the first The working channel of the station does not overlap with the working channel of the second station.
  • the second data transmission unit is configured to use a working channel of the second station, and the second Site data transfer includes:
  • the second data transmission unit is specifically configured to perform data transmission with the second station by using a working channel of the second station, where the number of the second stations is one or more.
  • a fourth aspect of the present application provides a site comprising:
  • a bandwidth power saving mode enabling unit for enabling a bandwidth power saving mode
  • the station that enables the bandwidth power saving mode utilizes a working channel to perform data transmission with an access point, where the working channel is an available channel of the station in the bandwidth power saving mode, and the access point is used in
  • data transmission is performed with the second station by using a working channel of the second station, and the working channel of the first station is
  • the working channel of the second station constitutes all or a portion of the available channels of the access point.
  • the bandwidth power saving mode enabling unit includes:
  • Requesting a sending subunit sending a request to the access point, the request carrying a fourth channel set, the fourth channel set being an available channel requested by the station to the access point, the fourth channel set
  • the total bandwidth of the channel in the channel is less than the bandwidth of the available channel of the access point
  • a receiving subunit configured to receive a request response sent by the access point, where the request response carries a fifth channel set, where a total bandwidth of the channel in the fifth channel set is smaller than a bandwidth of an available channel of the access point .
  • the bandwidth power saving mode enabling unit is configured to enable a bandwidth power saving mode, including:
  • the bandwidth power saving mode enabling unit is specifically configured to: receive second signaling sent by the access point, where the second signaling is used to indicate that the site enables the bandwidth power saving mode, and indicate the site A sixth set of channels available, the total bandwidth of the channels in the sixth set of channels being less than the bandwidth of the available channels of the access point.
  • the method further includes:
  • An update request sending unit configured to send an update request to the access point after the station enables the bandwidth power saving mode, where the update request carries a seventh channel set, and a total of channels in the seventh channel set
  • the bandwidth is smaller than the bandwidth of the available channel of the access point, and the seventh channel set is different from the channel set before the station update in the bandwidth power saving mode;
  • an update instruction receiving unit configured to receive, by the access point, a response to the update request, where the response is used to indicate that the channel set of the site is modified to the seventh channel set.
  • the update instruction receiving unit is further configured to:
  • the access point performs data transmission with the second station by using the working channel of the second station and the first station in the bandwidth power saving mode. Transmission, even if the primary channel includes the primary channel, the access point can still transmit data with the second station through other channels, and further, for the access point, although the working channel of the first station only occupies Part of its available bandwidth resources, but it can still use other channels for data transmission with the second station, so that the remaining bandwidth resources of the access point except the working channel of the first station can also be used for data transmission at the same time. In order to improve the resource utilization of the access point.
  • FIG. 1 is a schematic diagram of a system of a WLAN deployment scenario
  • FIG. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of still another data transmission method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of physical layer protocol data according to the present application.
  • FIG. 6 is a schematic diagram of still another physical layer protocol data according to the present application.
  • FIG. 7 is a schematic structural diagram of an access point according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a site according to an embodiment of the present application.
  • WLAN Wireless Local Area Network
  • IEEE Institute of Electrical and Electronics Engineers 802.11 series.
  • a WLAN can include multiple Basic Service Sets (BSSs), a network of basic service sets.
  • the network node is the station (Station, STA).
  • the site includes an access point class site, also known as an Access Point (AP) and a non-access point class (None Access Point Station, Non-AP STA).
  • AP Access Point
  • Non-AP STA Non-access point class
  • Each basic service set may contain one AP and multiple Non-AP STAs associated with the AP.
  • the AP is mainly deployed in the home, inside the building, and inside the park.
  • the typical coverage radius is tens of meters to hundreds of meters. Of course, it can also be deployed outdoors.
  • An AP is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect the wireless network clients together and then connect the wireless network to the Ethernet.
  • the AP may be a terminal device or a network device with a Wireless Fidelity (WiFi) chip.
  • the AP may be a device supporting the 802.11ax system.
  • the AP may be a device supporting multiple WLAN technologies such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • the non-access point class site may be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • a wireless communication terminal For example: mobile phone supporting WiFi communication function, tablet computer supporting WiFi communication function, set-top box supporting WiFi communication function, smart TV supporting WiFi communication function, smart wearable device supporting WiFi communication function, and vehicle communication supporting WiFi communication function Devices and computers that support WiFi communication.
  • the site can support the 802.11ax system. Further optionally, the site supports multiple WLAN formats such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • Figure 1 is a system diagram of a typical WLAN deployment scenario, including an AP and three STAs, and the AP communicates with STA1, STA2, and STA3, respectively.
  • the maximum bandwidth supported by the access point is greater than the maximum bandwidth supported by the site in the power saving mode.
  • the maximum bandwidth supported by the site in the power saving mode is 20 MHz, and the maximum bandwidth supported by the access point can be 40MHz, 80MHz or 160MHz, etc.
  • the maximum bandwidth supported is not greater than the maximum bandwidth supported by the access point, but greater than the maximum bandwidth supported by the site in the power saving mode, for example,
  • the maximum bandwidth supported by the power save mode site is 20MHz, and the maximum bandwidth supported by the access point can be 80MHz or 160MHz.
  • the maximum bandwidth supported by the non-power save mode site can be 80MHz or 160MHz.
  • the embodiment of the present application provides a channel transmission method, as shown in FIG. 2, including the following steps:
  • the access point performs data transmission with the first station by using a working channel of the first station, where the first station enables a bandwidth power saving mode, where the working channel is an available channel of the first station.
  • the access point uses the working channel of the first station to perform data transmission with the first station
  • the access point uses the working channel of the second station to perform data transmission with the second station.
  • the working channel of the first station and the working channel of the second station constitute all or part of the available channels of the access point.
  • the data referred to in the present invention includes data from above the MAC layer, a combination (aggregation) of one or more of the management frame and the control frame of the MAC layer.
  • the first station in this embodiment enables the site of the bandwidth power saving mode.
  • the bandwidth power saving mode means that the available maximum transmission bandwidth is smaller than the available transmission bandwidth of the system. For example, if the transmission bandwidth of the system is 80 MHz, the bandwidth power saving mode transmission is performed.
  • the bandwidth can be 20 MHz, 40 MHz or 60 MHz, of course, without being limited thereto. That is, the available transmission bandwidth of the site that initiates the bandwidth power saving mode is less than the available transmission bandwidth of the system.
  • the data transmission in this embodiment includes the sending and receiving of data.
  • the access point uses the working channel to perform data transmission with the first station, and the access point uses the working channel to receive the uplink data sent by the first station and the access point utilization.
  • the working channel sends downlink data to the first station.
  • the access point uses the remaining channel to transmit data with the second station, and the access point uses the remaining channel to receive the uplink data sent by the second station and the access point utilization.
  • the remaining channels send downlink data to the second station.
  • the number of the second sites may be one or more.
  • the number of the second sites is multiple, when the working channel of the first site and the working channel of the second site constitute an access point, When a part of the channel is used, the access point can simultaneously transmit data for the other second station while using the other channel while transmitting data for the first station and the second station.
  • the number of second stations may be based on the size of the system channel and the amount of data that can be transmitted and the access point and station The amount of data transferred by the point is determined jointly.
  • the second station may enable the bandwidth power saving mode or the bandwidth power saving mode.
  • the access point uses the working channel of the first station and the first station in the bandwidth power saving mode to perform data transmission
  • the working channel of the second station and the second station are utilized.
  • the working channel of the second station is other channels than the working channel of the first station, so even if the working channel of the first station includes the primary channel, the access point can still pass other channels and the second channel.
  • the station performs data transmission.
  • the working channel of the first station since the working channel of the first station only occupies a part of its available bandwidth resources, it can still use other channels to perform data transmission with the second station, thereby making The remaining bandwidth resources of the access point except the working channel of the first station can also be used for data transmission at the same time, thereby improving the resource utilization of the access point.
  • the access point sends the first signaling to the first station, where the first signaling is used to indicate that the first station enables the bandwidth power saving mode, and the first channel set that is available to the first station, and the channel in the first channel set.
  • the total bandwidth is less than the bandwidth of the available channels of the access point;
  • the application layer specifies the site to enable the bandwidth power saving mode, the uplink and downlink data volume is reduced, or the interference on multiple channels is large, and only some of the channel conditions are good, the access point can initiate the control site to enable.
  • the bandwidth power saving mode a station that enables the bandwidth power saving mode listens and/or transmits data only on a set of channels (such as a first channel set) that it agrees with the access point.
  • the first signaling may carry the identifier of the first site, and the identifier of the first site is in one-to-one correspondence with the first channel set.
  • the first station receives the first signaling, according to the identifier of the first site, The correspondence between the first channel set and the identity of the first channel determines the first channel set indicated by the first signaling.
  • the access point controls the first station to enable the bandwidth power saving mode
  • the access point does not need to obtain the ACK confirmation of the first station, and the first station can be considered to have enabled the bandwidth.
  • Power saving mode, and data transmission with the access point through the working channel of the first station, because the access point and the first station are successfully enabled even if the first station fails to enable the bandwidth power saving mode according to the indication of the access point Data transfer can also be performed normally.
  • the access point controls the second site to enable the bandwidth power saving mode, specifically, the control mode can be referred to S301;
  • the second site in this embodiment is also a site in the bandwidth power saving mode.
  • the access point simultaneously performs data transmission for two sites in the bandwidth power saving mode.
  • the first signaling when the access point performs data transmission with other stations through other channels, if the other stations are sites in the bandwidth power saving mode, the first signaling may carry the identifiers of other sites at the same time. If the other sites are multiple sites and the multiple sites belong to the group site, the first signaling may carry the group address of the group site at the same time. Of course, the first signaling may also carry a broadcast address, and the broadcast address corresponds to the access point. All sites below.
  • Step S301 may be performed before step S302, or may be performed after step S302.
  • the access point sends, to the first station, a first trigger frame for indicating a working channel of the first station, and a second trigger frame for indicating a working channel of the second station to the second station.
  • the first triggering frame is used to trigger the first station to send data according to the preset sending time as the starting time
  • the second triggering frame is used to trigger the second station to send data according to the preset sending time as the starting time
  • the first site The working channel is a subset of the first set of channels, and the working channel of the first station and the working channel of the second station constitute part or all of the available bandwidth of the access point.
  • the trigger frame in this embodiment is used to trigger the station to send uplink data, and it realizes the alignment of the uplink data transmission in time by indicating the start time of data transmission to the first station and the second station.
  • the first channel set allocated by the access point for the first station and the channel set allocated by the access point for the second station may be the same or different.
  • the two channel sets are the same, when using the FDMA method (frequency division multiple access, such as the OFDMA method), in order to avoid collision when two stations transmit data, the working channel based on the two channel sets needs to be none. Overlap. When other methods (such as MU-MIMO) are used, the channels of the two can overlap.
  • a subset of the set of channels in this embodiment includes a set of channels or a portion of a set of channels.
  • the first station uses the working channel of the first station to start with a preset sending time. Send data to the access point;
  • the second station uses the working channel of the second station to send data to the access point with a preset sending time as a starting time.
  • step S304 may be performed before step S305, or may be performed after step S305.
  • the access point sends an update command to the station in the bandwidth power saving mode, where the update command is used to indicate the updated channel set allocated by the access point to the station in the bandwidth power saving mode, and the total channel in the updated channel set.
  • the bandwidth of the channel is smaller than the bandwidth of the available channel of the access point, and the updated channel set is different from the channel set before the site update in the bandwidth power saving mode.
  • the update instruction is used to update the power save mode of the station. Regardless of whether it is the first site or the second site, the channel set before the update is different from the updated channel set, specifically, including:
  • the channel in the channel set before the update overlaps with the channel in the updated channel set
  • the channel in the channel set before the update is identical to the channel in the updated channel set.
  • the channel in the channel set before the update overlaps with the channel in the updated channel set.
  • the available bandwidth of the access point is 80 MHz, it can be divided into four channels, namely channel 1, channel 2, channel 3 and channel 4.
  • Channel 1 can be further divided into subchannel 1 and subchannel 2, each channel occupying
  • the bandwidth is 20MHz, and the bandwidth occupied by each subchannel is 10MHz;
  • the updated channel set may be channel 3 and channel 4, which is a case where the channels are completely different;
  • the updated channel set may also be channel 1 and channel 2, in which case the channels belong to overlap, and the overlapping channels are channel 2.
  • the updated channel set may also be subchannel 1 of channel 1, which is the case where the channels are identical (i.e., both are channel 1).
  • the updated channel set may be channel 3 and channel 4; and/or,
  • the updated channel set may be channel 2 and channel 3, and the overlapping channel is channel 2.
  • the first station and the second station are both in a bandwidth power saving mode
  • the access point sends a trigger frame to the first station and the second station, where the trigger frame is used to trigger the first station and the second station to pre- Setting the time as the start time to send data, thereby realizing the alignment of the uplink data of the first station and the second station in time, and since the working channel of the first station does not overlap with the working channel of the second station,
  • the access point can simultaneously control the mixed transmission of the uplink data of the sites in the two bandwidth power saving modes, thereby improving the resource utilization of the access point.
  • the first station may perform multiple data transmissions and multiple data receptions with the access point.
  • the remaining channel can also be used to communicate with other sites, thereby improving the resources of the access point. Utilization rate.
  • the method includes:
  • the first station sends a request to the access point, where the request carries a fourth channel set, where the fourth channel set is an available channel applied by the station that enables the power saving mode to the access point, and the total channel in the fourth channel set.
  • the bandwidth is less than the bandwidth of the available channel of the access point;
  • the available channel can use the number of the channel, or the main channel relative to the current access point The indication of the positional offset, or the center frequency and bandwidth of the channel.
  • the channel set requested by the station to the access point is the same as the channel set carried in the request received by the access point, and the “second channel set” and “third channel set” used in the present application are used.
  • the expression “fourth channel set”, "X" is only for the description clearly, in the scenario where the access point and the station interact, the channel set sent by the sender is the channel set received by the receiver.
  • the access point sends a request response, where the request response carries a fifth channel set, and a total bandwidth of the channel in the fifth channel set is smaller than a bandwidth of an available channel of the access point.
  • the process of enabling the power saving mode in the first station in this embodiment is initiated by the first station itself. At this time, the first station can only follow the channel carried in the response after receiving the response from the access point to return the request. The collection and the access point perform data transmission.
  • the channel set that the access point responds to the first station is not necessarily the fourth channel set, that is, the current
  • the four channel set is different from the fifth channel set. For example, when the load on the channel corresponding to the fourth channel set is too heavy, and the load on the channel corresponding to the fifth channel set is light, the access point responds to the channel set of the first station. It is a fifth channel set.
  • the fifth channel set of the access point response to the first station is the same as the fourth channel set. That is to say, at this time, the access point recognizes the fourth channel set applied by the first station, and the fifth channel set in the request response fed back by the access point is the fourth channel set.
  • the access point sends a physical layer protocol data unit PPDU to the first station by using a working channel of the first station.
  • the PPDU includes service data, indication signaling (signaling A and signaling B) for indicating a data receiving manner of the first station, and is used to indicate the work of the first station.
  • indication signaling for indicating a data receiving manner of the first station
  • a preamble of the channel and control signaling for indicating a data transmission resource indication of the first station.
  • the preamble may be a compatible preamble, and different signaling B information may be transmitted within different 20 MHz messages.
  • the working channel indication information of the first station included by the access point to the first station for indicating the preamble of the working channel of the first station is sent in the first channel set.
  • the partial preamble signal sent by the access point may be outside the first channel set for serving to transmit outside the first channel set User.
  • the access point sends a PPDU to the second station by using a working channel of the second station.
  • the PPDU sent to the second site includes service data, and data for indicating the second site.
  • the indication signaling of the receiving mode and the preamble for indicating the working channel of the second station, wherein the indication information, that is, the beacon frame, may be carried on the working channel of the second station.
  • the working channel of the first station is a subset of the channel set of the first station in the bandwidth power saving mode; when the bandwidth power saving mode is enabled by the second station, the working channel of the second station is the first The subset of the channel set of the second station in the bandwidth power saving mode, the working channel of the first station does not overlap with the working channel of the second station.
  • the first station sends an update request to the access point, where the update request carries a seventh channel set, where the seventh channel set is a channel set applied by the updated bandwidth power saving station to the access point, and the seventh channel set is used.
  • the total bandwidth of the channel is smaller than the bandwidth of the available channel of the access point, and the seventh channel set is different from the channel set before the station update in the bandwidth power saving mode;
  • the second site can also request an update, which will not be described here.
  • the access point sends an instruction in response to the update request, where the instruction is used to indicate that the channel set of the station is modified to the seventh channel set.
  • Step S403 may be performed before step S404, or may be performed after step S404.
  • the update of the bandwidth power saving mode of the first station is initiated by the first station in this embodiment, the relationship between the channel sets before and after the update may be referred to the previous embodiment.
  • the first site is a site in a bandwidth power saving mode
  • the second site is a site in a non-bandwidth power saving mode
  • the access point sends a preamble to the first site and the second site
  • the preamble is used to indicate the first site.
  • the working channel of the downlink and the second station receives the data, and the working channel of the first station does not overlap with the working channel of the second station, so that the access point simultaneously sends data for multiple sites, thereby improving the resources of the node. rate.
  • the access point control station enables the bandwidth power saving mode (S301 and S302), and in FIG. 4, the site is active. It is required to enable the bandwidth power saving mode (S401 and S402).
  • the two modes can be mutually referred to, and the certain manners are not necessarily applied to the uplink or downlink scenario described in the foregoing embodiment.
  • the site bandwidth power saving mode is used.
  • the update may be initiated by the access point (S306), or may be initiated by the site (S405).
  • the two modes may be referred to each other, and the certain manners are not necessarily applied to the uplink or downlink scenario described in the foregoing embodiment.
  • an access point provided by the embodiment of the present application includes:
  • a first data transmission unit 710 configured to perform data transmission with the first station by using a working channel of the first station, where the first station enables a bandwidth power saving mode, where the first station working channel is the first station Available channel;
  • a second data transmission unit 720 configured to perform data transmission with the second station by using a working channel of the second station, where the data is transmitted by using the working channel of the first station and the first station, the first The working channel of the station and the working channel of the second station constitute all or part of the available channels of the access point.
  • the access point in this embodiment may further include:
  • the signaling sending unit 730 is configured to send first signaling to the first station before using the working channel of the first station to perform data transmission with the first station, where the first signaling is used to indicate The bandwidth power saving mode is enabled, and a first set of channels available to the first station, a total bandwidth of channels in the first set of channels being less than a bandwidth of available channels of the access point.
  • the receiving unit 740 is configured to receive, before using the working channel of the first station, data transmission with the first station, requesting, by the first station, a bandwidth power saving mode, where the request carries a second channel set,
  • the second channel set is an available channel in the bandwidth power saving mode applied by the first station to the access point, and a total bandwidth of the channel in the second channel set is smaller than that available in the access point.
  • the response unit 750 is configured to send a request response to the first station, where the request response carries a third channel set, where a total bandwidth of the channel in the third channel set is smaller than the access point The bandwidth of the available channels.
  • the signaling sending unit is configured to: the access point actively controls the site to enable the bandwidth power saving mode, and the receiving unit and the response unit are configured to cooperate with the site to actively trigger the enabled bandwidth power saving mode.
  • the access point in this embodiment may further include: an update instruction sending unit 760, configured to send an update instruction to the site in the bandwidth power saving mode, where the update command is used to indicate the access Point is an updated channel set allocated by the station in the bandwidth power saving mode, the total bandwidth of the channel in the updated channel set is smaller than the bandwidth of the available channel of the access point, the updated channel The set is different from the set of channels before the site update in the bandwidth power saving mode.
  • an update instruction sending unit 760 configured to send an update instruction to the site in the bandwidth power saving mode, where the update command is used to indicate the access Point is an updated channel set allocated by the station in the bandwidth power saving mode, the total bandwidth of the channel in the updated channel set is smaller than the bandwidth of the available channel of the access point, the updated channel The set is different from the set of channels before the site update in the bandwidth power saving mode.
  • the method may further include:
  • the trigger frame sending unit 770 is configured to send, to the first station, the first station, before the first data transmission unit performs data transmission with the first station by using the working channel of the first station. a first trigger frame of the working channel, and before the second data transmission unit uses the working channel of the second station to transmit data to the second station, to send the second station to indicate the second station a second trigger frame of the working channel, where the first trigger frame is used to trigger the first station to send data with the preset sending time as a starting time, and the second trigger frame is used to trigger the second station The data is sent at the start time of the preset transmission time.
  • the first data transmission unit may use the working channel of the first station to perform data transmission with the first station, where the first station may receive the first station by using the working channel of the first station.
  • the preset transmission time is the data sent at the start time, and the preset transmission time is specified by the access point.
  • the specific implementation manner of the data transmission by the second data transmission unit and the second station may be: receiving, by using the working channel of the second station, data sent by the second station by using the preset sending time as a starting time.
  • the working channel of the first station is a subset of the channel set of the first station in the bandwidth power saving mode; when the second station enables the bandwidth power saving mode, the working channel of the second station For a subset of the set of channels of the second station in the bandwidth power saving mode, the working channel of the first station does not overlap with the working channel of the second station.
  • the specific implementation manner of the first data transmission unit using the working channel of the first station to perform data transmission with the first station may be: sending, by using the working channel of the first station, to the first station.
  • PPDU the PPDU includes service data, and is used to indicate Instructing signaling of a data receiving manner of the first station, a preamble for indicating a working channel of the first station, and control signaling for indicating a data transmission resource indication of the first station; the second data transmission unit utilizing the remaining
  • the specific implementation manner of the data transmission with the second station may be: sending, by using the working channel of the second station, a PPDU to the second station, where the PPDU includes service data, and is used to indicate the second site. Indicating signaling of a data receiving manner and a preamble for indicating a working channel of the second station;
  • the working channel of the first station is a subset of the channel set of the first station in the bandwidth power saving mode; when the second station enables the bandwidth power saving mode, the working channel of the second station For a subset of the set of channels of the second station in the bandwidth power saving mode, the working channel of the first station does not overlap with the working channel of the second station.
  • the number of second sites that perform data transmission with the access point may be one or more.
  • the access point provided by the embodiment of the present invention can still use the remaining channel to perform data transmission with other stations in the case of communicating with the station in the bandwidth power saving mode, so that the access point is in addition to the bandwidth power saving mode site.
  • the remaining bandwidth resources outside the working channel can also be used for data transmission at the same time, thereby improving the resource utilization of the access point.
  • the embodiment of the present application further provides a site, including:
  • a bandwidth power saving mode enabling unit for enabling a bandwidth power saving mode
  • the station that enables the bandwidth power saving mode uses a working channel to perform data transmission with an access point, where the working channel is an available channel of the station in the bandwidth power saving mode, and the access point is used by the station. And performing data transmission with the second station by using the working channel of the second station, where the working channel of the first station and the working channel of the second station form the connection All or part of the available channels of the ingress. .
  • the bandwidth power saving mode enabling unit may specifically include:
  • a request sending subunit 810 configured to send a request to the access point, where the request carries a fourth channel set, where the fourth channel set is available to the access point application by the site that enables power saving mode Channel, the total bandwidth of the channels in the fourth channel set is less than the bandwidth of the available channels of the access point;
  • a receiving sub-unit 820 configured to receive a request response sent by the access point, where the request response carries a fifth channel set, where a total bandwidth of the channel in the fifth channel set is smaller than an available channel of the access point bandwidth;
  • the specific implementation manner of the bandwidth power saving mode enabling unit to enable the bandwidth power saving mode may be: receiving the second signaling sent by the access point, where the second signaling is used to indicate that the site enables the bandwidth power A mode of saving, and a sixth set of channels indicating the availability of the station, the total bandwidth of the channels in the sixth set of channels being less than the bandwidth of the available channels of the access point.
  • the site in this embodiment may further include:
  • An update request sending unit 830 configured to send an update request to the access point after the site enables the bandwidth power saving mode, where the update request carries a seventh channel set, where the channel in the seventh channel set The total bandwidth is less than the bandwidth of the available channel of the access point, the seventh channel set being different from the channel set before the station update in the bandwidth power saving mode;
  • the update instruction receiving unit 840 is configured to receive a response of the access point to the update request, where the response is used to indicate that the channel set of the site is modified to a seventh channel set.
  • the update instruction receiving unit may be further configured to: after the station enables the bandwidth power saving mode, receive an update instruction sent by the access point, where the update instruction is used to indicate that the access point is An updated channel set allocated by the station, a total bandwidth of the channel in the updated channel set is smaller than a bandwidth of an available channel of the access point, and the updated channel set and the bandwidth power saving before the update The channel set of the mode site is different.
  • the access point uses the working channel of the station to perform data transmission with other stations in the case of data transmission with the station in the bandwidth power saving mode, that is, the access point can be used in the solution of the present application.
  • data transmission is performed for other stations and stations in the bandwidth power saving mode, that is, for the access point, although the working channel of the station only occupies a part of its available bandwidth resources, it can still utilize the remaining channels.
  • the data transmission is performed with other stations, so that the remaining bandwidth resources of the access point except the working channel of the station can also be used for data transmission at the same time, thereby improving resource utilization on the access point side.
  • the access point since the channel through which the access point performs data transmission with other stations, the remaining channels other than the working channel for data transmission of the access point and the station, even if the working channel of the station includes the primary channel, the access point is still Data can be transmitted to other stations through the remaining channels.
  • the functions described in the method of the present embodiment can be stored in a computing device readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, a portion of the embodiments of the present invention that contributes to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a
  • the computing device (which may be a personal computer, server, mobile computing device, or network device, etc.) performs all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请所提供的数据传输方法，接入点在利用第一站点的工作信道与处于带宽功率节省模式的第一站点进行数据传输的情况下，利用第二站点的工作信道与第二站点进行数据传输，所以，即使第一站点的工作信道中包括主信道，接入点也还是能通过其它信道与第二站点进行数据传输，进一步地，对于接入点而言，虽然第一站点的工作信道只占用了其可用带宽资源的一部分，但是，其仍然能够利用剩余信道与第二站点进行数据传输，从而使得接入点除第一站点的工作信道之外的剩余带宽资源也能同时被用于数据传输，以此提高了接入点的资源利用率。

Description

一种数据传输方法、接入点及站点 技术领域
本发明涉及技术领域通信领域，特别是涉及一种数据传输方法、接入点及站点。
背景技术
为了满足大系统吞吐量的要求，当前通信系统强制所有站点(station，STA)支持80MHz传输带宽模式。通过使用大带宽，站点可以在较短时间内完成数据的传输，以此节省数据传输时间，降低数据收发的功率。然而，当上下行数据传输需求较低时，用于传输数据的大带宽在绝大多数时间都处于空闲状态，此时，站点持续侦听信道，以便当上下行有数据传输需求时，站点根据侦听到的信道状态确定是否能够进行数据传输，其中信道状态包括信道空闲和信道繁忙，而持续侦听较宽信道的过程无疑会大大提高站点的功耗，同时，站点抗干扰能力也弱。
基于此，现有技术中引入了一种站点在工作中动态调节带宽的方法，具体的，当上下行数据传输需求较低时，站点将自身支持的80MHz传输带宽模式切换为带宽功率节省模式(Bandwidth Power Saving Mode，BW PS mode)，并通过发送运行模式告知帧(Operating Mode Notification frame)，告知接入点自身当前所支持的带宽模式，其中，带宽功率节省模式指的是站点的可用带宽小于80MHz(例如可用带宽为20MHz、40MHz或60MHz)的带宽模式，且带宽功率节省模式下，站点传输数据的信道包括主信道。
虽然上述方法能够在上下行数据传输需求较低时，在一定程度上降低站点对信道的侦听功耗，但是，当处于带宽功率节省模式的接入点与站点之间需要传输数据时，由于带宽功率节省模式的站点占用了主信道，所以在与占用主信道的站点通信期间，接入点仅能与这一个站点传输数据，并且，接入点只能使用此站点的工作信道为其传输数据，因为此站点为带宽功率节省模式，所以，对于接入点而言，此站点的工作信道只占用了接入 点可用带宽资源的一部分，此站点的工作信道之外的剩余的带宽资源将被浪费，从而降低了接入点的资源利用率。
发明内容
本申请提供了一种数据传输方法、接入点及站点，目的在于解决带宽功率节省模式的站点占用了主信道，使得接入点在与占用主信道的站点通信期间，接入点仅能与这一个站点传输数据，从而导致接入点的资源利用率低的问题。
为了实现上述目的，本申请提供了以下技术方案：
本申请的第一方面提供了一种数据传输方法，包括：
接入点利用第一站点的工作信道与所述第一站点进行数据传输，所述第一站点启用带宽功率节省模式，所述第一站点的工作信道为所述第一站点的可用信道；
在所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输的情况下，所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
结合第一方面，在第一方面的第一种实现方式中，在所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输之前，还包括：所述接入点指示所述第一站点启用所述带宽功率节省模式；
所述接入点指示所述第一站点启用所述带宽功率节省模式的过程具体包括：
所述接入点发送第一信令，所述第一信令用于指示启用所述带宽功率节省模式以及所述第一站点可用的第一信道集合，所述第一信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第一方面，在第一方面的第二种实现方式中，在所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输之前，还包括：
所述接入点接收所述第一站点启用带宽功率节省模式的请求，所述请求携带第二信道集合，所述第二信道集合为所述第一站点向所述接入点申请的在带宽功率节省模式下的可用信道，所述第二信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
所述接入点向所述第一站点发送请求响应，所述请求响应中携带第三信道集合，所述第三信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第一方面或第一方面的第一种实现方式或第一方面的第二种实现方式，在第一方面的第三种实现方式中，还包括：
所述接入点向所述带宽功率节省模式的站点发送更新指令，所述更新指令用于指示所述接入点为所述带宽功率节省模式的站点分配的更新后的信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
结合第一方面或第一方面的第一种实现方式或第一方面的第二种实现方式或第一方面的第三种实现方式，在第一方面的第四种实现方式中，所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输包括：
所述接入点利用所述第一站点的工作信道接收所述第一站点以预设发送时刻为起始时间发送的数据，所述预设发送时刻由所述接入点规定；
所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输包括：
所述接入点利用第二站点的工作信道接收所述第二站点以所述预设发送时刻为起始时间发送的数据；
其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
结合第一方面的第四种实现方式，在第一方面的第五种实现方式中，所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输之前，还包括：
所述接入点向所述第一站点发送用于指示所述第一站点的工作信道的第一触发帧、及在所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输之前，向所述第二站点发送用于指示所述第二站点的工作信 道的第二触发帧，所述第一触发帧用于触发所述第一站点以所述预设发送时刻为起始时间发送数据，所述第二触发帧用于触发所述第二站点以所述预设发送时刻为起始时间发送数据。
结合第一方面或第一方面的第一种实现方式或第一方面的第二种实现方式或第一方面的第三种实现方式或第一方面的第四种实现方式或第一方面的第五种实现方式，在第一方面的第六种实现方式中，所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输包括：
所述接入点利用所述第一站点的工作信道向所述第一站点发送物理层协议数据单元PPDU，所述PPDU包括业务数据、用于指示所述第一站点的数据接收方式的指示信令、用于指示所述第一站点的工作信道的前导以及用于指示所述第一站点的数据发送资源指示的控制信令；
所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输包括：
所述接入点利用所述第二站点的工作信道向所述第二站点发送PPDU，所述PPDU包括业务数据、用于指示所述第二站点的数据接收方式的指示信令以及用于指示所述第二站点的工作信道的前导；
其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第二站点在带宽功率节省模式下的信道集合的子集为所述第二站点的工作信道，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
结合第一方面或第一方面的第一种实现方式或第一方面的第二种实现方式或第一方面的第三种实现方式或第一方面的第四种实现方式或第一方面的第五种实现方式或第一方面的第六种实现方式，在第一方面的第七种实现方式中，所述第二站点的数量为一个或者多个。
本申请的第二方面提供了一种数据传输方法，包括：
站点启用带宽功率节省模式；
启用所述带宽功率节省模式的所述站点利用工作信道，与接入点进行数据传输，所述工作信道为所述带宽功率节省模式下所述站点的可用信道， 所述接入点用于在与所述站点进行数据传输的情况下，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
结合第二方面，在第二方面的第一种实现方式中，所述站点启用带宽功率节省模式，包括：
所述站点向所述接入点发送请求，所述请求携带第四信道集合，所述第四信道集合为所述站点向所述接入点申请的可用信道，所述第四信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
所述站点接收所述接入点发送的请求响应，所述请求响应携带第五信道集合，所述第五信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第二方面，在第二方面的第二种实现方式中，所述站点启用带宽功率节省模式，包括：
所述站点接收所述接入点发送的第二信令，所述第二信令用于指示所述站点启用所述带宽功率节省模式，以及指示所述站点可用的第六信道集合，所述第六信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第二方面或第二方面的第一种实现方式或第二方面的第二种实现方式，在第二方面的第三种实现方式中，所述站点启用所述带宽功率节省模式后，还包括：所述站点向所述接入点发送更新请求，所述更新请求携带第七信道集合，所述第七信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述第七信道集合与在带宽功率节省模式下的所述站点更新前的信道集合不同；
所述站点接收所述接入点对所述更新请求的指令的响应，所述响应用于指示将所述站点的信道集合修改为所述第七信道集合。
结合第二方面或第二方面的第一种实现方式或第二方面的第二种实现方式，在第二方面的第四种实现方式中，所述站点启用所述带宽功率节省模式后，还包括：
所述站点接收所述接入点发送的更新指令，所述更新指令用于指示所述接入点为所述站点分配的更新后的信道集合，所述更新后的信道中的信 道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
本申请的第三方面提供了一种接入点，包括：
第一数据传输单元，用于利用第一站点的工作信道与所述第一站点进行数据传输，所述第一站点启用带宽功率节省模式，所述第一站点的工作信道为所述第一站点的可用信道；
第二数据传输单元，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输的情况下，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
结合第三方面，在第三方面的第一种实现方式中，还包括：
信令发送单元，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输之前，向所述第一站点发送第一信令，所述第一信令用于指示启用所述带宽功率节省模式、以及所述第一站点可用的第一信道集合，所述第一信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第三方面，在第三方面的第二种实现方式中，还包括：
接收单元，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输之前，接收所述第一站点启用带宽功率节省模式的请求，所述请求携带第二信道集合，所述第二信道集合为所述第一站点向所述接入点申请的在带宽功率节省模式下的可用信道，所述第二信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
响应单元，用于向所述第一站点发送请求响应，所述请求响应中携带第三信道集合，所述第三信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第三方面或第三方面的第一种实现方式或第三方面的第二种实现方式，在第三方面的第三种实现方式中，还包括：
更新指令发送单元，用于向所述带宽功率节省模式的站点发送更新指令，所述更新指令用于指示所述接入点为所述带宽功率节省模式的站点分配的更新后的信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节 省模式下的站点更新前的信道集合不同。
结合第三方面或第三方面的第一种实现方式或第三方面的第二种实现方式或第三方面的第三种实现方式，在第三方面的第四种实现方式中，所述第一数据传输单元用于利用第一站点的工作信道与所述第一站点进行数据传输包括：
所述第一数据传输单元具体用于，利用所述第一站点的工作信道接收所述第一站点以预设发送时刻为起始时间发送的数据，所述预设发送时刻由所述接入点规定；
所述第二数据传输单元用于第二站点的工作信道，与所述第二站点进行数据传输包括：
所述第二数据传输单元具体用于，利用第二站点的工作信道接收所述第二站点以所述预设发送时刻为起始时间发送的数据；
其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
结合第三方面的第四种实现方式，在第三方面的第五种实现方式中，还包括：
触发帧发送单元，用于在所述第一数据传输单元利用所述第一站点的工作信道与第一站点进行数据传输之前，向所述第一站点发送用于指示所述第一站点的工作信道的第一触发帧、及在所述第二数据传输单元利用第二站点的工作信道，与所述第二站点进行数据传输之前，向所述第二站点发送用于指示所述第二站点的工作信道的第二触发帧，所述第一触发帧用于触发所述第一站点以所述预设发送时刻为起始时间发送数据，所述第二触发帧用于触发所述第二站点以所述预设发送时刻为起始时间发送数据。
结合第三方面或第三方面的第一种实现方式或的第三方面的第二种实现方式或第三方面的第三种实现方式或第三方面的第四种实现方式或第三方面的第五种实现方式，在第三方面的第六种实现方式中，所述第一数据传输单元用于利用第一站点的工作信道与所述第一站点进行数据传输包括：
所述第一数据传输单元具体用于，利用所述第一站点的工作信道向所述第一站点发送物理层协议数据单元PPDU，所述PPDU包括业务数据、用于指示所述第一站点的数据接收方式的指示信令、用于指示所述第一站点的工作信道的前导以及用于指示所述第一站点的数据发送资源指示的控制信令；
第二数据传输单元用于利用第二站点的工作信道信道，与所述第二站点进行数据传输包括：
所述第二数据传输单元具体用于，利用所述第二站点的工作信道向所述第二站点发送PPDU，所述PPDU包括业务数据、用于指示所述第二站点的数据接收方式的指示信令以及用于指示所述第二站点的工作信道的前导；
其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第二站点在带宽功率节省模式下的信道集合的子集为所述第二站点的工作信道，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
结合第三方面或第三方面的第一种实现方式或的第三方面的第二种实现方式或第三方面的第三种实现方式或第三方面的第四种实现方式或第三方面的第五种实现方式或第三方面的第六种实现方式，在第三方面的第七种实现方式中，所述第二数据传输单元用于利用第二站点的工作信道，与所述第二站点进行数据传输包括：
所述第二数据传输单元具体用于，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第二站点的数量为一个或者多个。
本申请的第四方面提供了一种站点，包括：
带宽功率节省模式启用单元，用于启用带宽功率节省模式；
启用所述带宽功率节省模式的所述站点利用工作信道，与接入点进行数据传输，所述工作信道为所述带宽功率节省模式下所述站点的可用信道，所述接入点用于在与所述站点进行数据传输的情况下，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述 第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
结合第四方面，在第四方面的第一种实现方式中，所述带宽功率节省模式启用单元，包括：
请求发送子单元，向所述接入点发送请求，所述请求携带第四信道集合，所述第四信道集合为所述站点向所述接入点申请的可用信道，所述第四信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
接收子单元，用于接收所述接入点发送的请求响应，所述请求响应携带第五信道集合，所述第五信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第四方面，在第四方面的第二种实现方式中，所述带宽功率节省模式启用单元用于启用带宽功率节省模式，包括：
所述带宽功率节省模式启用单元具体用于，接收所述接入点发送的第二信令，所述第二信令用于指示所述站点启用所述带宽功率节省模式，以及指示所述站点可用的第六信道集合，所述第六信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
结合第四方面或第四方面的第一种实现方式或第四方面的第二种实现方式，在第四方面的第三种实现方式中，还包括：
更新请求发送单元，用于所述站点启用所述带宽功率节省模式后，向所述接入点发送更新请求，所述更新请求携带第七信道集合，所述第七信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述第七信道集合与在带宽功率节省模式下的所述站点更新前的信道集合不同；
更新指令接收单元，用于接收所述接入点对所述更新请求的响应，所述响应用于指示将所述站点的信道集合修改为所述第七信道集合。
结合第四方面或第四方面的第一种实现方式或第四方面的第二种实现方式，在第四方面的第四种实现方式中，所述更新指令接收单元还用于：
在所述站点启用所述带宽功率节省模式后，接收所述接入点发送的更新指令，所述更新指令用于指示所述接入点为所述站点分配的更新后的信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
本申请所提供的数据传输方法，接入点在利用第一站点的工作信道与处于带宽功率节省模式的第一站点进行数据传输的情况下，利用第二站点的工作信道与第二站点进行数据传输，即使第一站点的工作信道中包括主信道，接入点也还是能通过其它信道与第二站点进行数据传输，进一步地，对于接入点而言，虽然第一站点的工作信道只占用了其可用带宽资源的一部分，但是，其仍然能够利用其它信道与第二站点进行数据传输，从而使得接入点除第一站点的工作信道之外的剩余带宽资源也能同时被用于数据传输，以此提高了接入点的资源利用率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一种WLAN部署场景的系统示意图；
图2为本申请实施例提供的一种数据传输方法的流程示意图；
图3为本申请实施例提供的又一种数据传输方法的流程示意图；
图4为本申请实施例提供的又一种数据传输方法的流程示意图；
图5为本申请为一种物理层协议数据的示意图；
图6为本申请为又一种物理层协议数据的示意图；
图7为本申请实施例提供的一种接入点的结构示意图；
图8为本申请实施例提供的一种站点的结构示意图。
具体实施方式
本申请的方案可以应用于无线局域网(Wireless Local Area Network，WLAN)，目前WLAN采用的标准为电气和电子工程师协会(Institute of Electrical and Electronics Engineers，IEEE)802.11系列。WLAN可以包括多个基本服务集(Basic Service Set，BSS)，基本服务集中的网 络节点为站点(Station，STA)。
站点包括接入点类的站点，也称之为接入点(Access Point，AP)和非接入点类的站点(None Access Point Station，Non-AP STA)。每个基本服务集可以包含一个AP和多个关联于该AP的Non-AP STA。
AP主要部署于家庭、大楼内部以及园区内部，典型覆盖半径为几十米至上百米，当然，也可以部署于户外。AP相当于一个连接有线网和无线网的桥梁，其主要作用是将各个无线网络客户端连接到一起，然后将无线网络接入以太网。具体地，AP可以是带有无线保真(Wireless Fidelity，WiFi)芯片的终端设备或者网络设备。可选地，AP可以为支持802.11ax制式的设备，进一步可选地，该AP可以为支持802.11ac、802.11n、802.11g、802.11b及802.11a等多种WLAN制式的设备。
非接入点类的站点可以是无线通讯芯片、无线传感器或无线通信终端。例如：支持WiFi通讯功能的移动电话、支持WiFi通讯功能的平板电脑、支持WiFi通讯功能的机顶盒、支持WiFi通讯功能的智能电视、支持WiFi通讯功能的智能可穿戴设备、支持WiFi通讯功能的车载通信设备和支持WiFi通讯功能的计算机。可选地，站点可以支持802.11ax制式，进一步可选地，该站点支持802.11ac、802.11n、802.11g、802.11b及802.11a等多种WLAN制式。
图1为一个典型的WLAN部署场景的系统示意图，包括一个AP和3个STA，AP分别与STA1、STA2和STA3进行通信。在该系统中，接入点所支持的最大带宽大于功率节省模式的站点所支持的最大带宽，如，功率节省模式的站点所支持的最大带宽为20MHz，则接入点所支持的最大带宽可以为40MHz、80MHz或160MHz等，而对于非功率节省模式的站点，其所支持的最大带宽不大于接入点所支持的最大带宽，但却大于功率节省模式的站点所支持的最大带宽，如，功率节省模式的站点所支持的最大带宽为20MHz，接入点所支持的最大带宽可以为80MHz或160MHz，则非功率节省模式的站点所支持的最大带宽可以为80MHz或160MHz等。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
实施例1
本申请实施例提供一种信道传输方法，如图2所示，包括以下步骤：
S201、接入点利用第一站点的工作信道与所述第一站点进行数据传输，所述第一站点启用带宽功率节省模式，所述工作信道为所述第一站点的可用信道；
S202、在所述接入点利用第一站点的工作信道与所述第一站点进行数据传输的情况下，所述接入点利用第二站点的工作信道，与第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。本发明中所指的数据包括来自MAC层以上的数据，MAC层的管理帧和控制帧中的一个或多个的组合(汇聚)。
本实施例中的第一站点启用带宽功率节省模式的站点，所述带宽功率节省模式是指可用最大传输带宽小于系统的可用传输带宽，例如，系统的传输带宽为80MHz，则带宽功率节省模式传输带宽可以为20MHz、40MHz或60MHz，当然，并不限于此。也就是说，启动带宽功率节省模式的站点的可用传输带宽小于系统的可用传输带宽。
本实施例中的数据传输包括数据的发送与接收，相应的，接入点利用工作信道与第一站点进行数据传输包括接入点利用工作信道接收第一站点发送的上行数据及接入点利用工作信道向第一站点发送下行数据两种情况，同理，接入点利用剩余信道与第二站点进行数据传输也包括接入点利用剩余信道接收第二站点发送的上行数据及接入点利用剩余信道向第二站点发送下行数据这两种情况，具体的上行或下行传输过程将在下面的实施例中进行说明。
本实施例中，第二站点的数量可以为一个或多个，在第二站点的数量为多个的情况下，当第一站点的工作信道与第二站点的工作信道构成接入点的可用信道的一部分时，接入点在为第一站点和一个第二站点传输数据的同时，还能同时利用其它信道为其它第二站点进行数据传输。第二站点的个数可以根据所述系统信道的带宽所能传输数据量的大小和接入点与站 点进行传输的数据量的大小共同决定。
本实施例中，第二站点既可以启用带宽功率节省模式，也可以不启用带宽功率节省模式。
本发明实施例所提供的数据传输方法，接入点在利用第一站点的工作信道与处于带宽功率节省模式的第一站点进行数据传输的情况下，利用第二站点的工作信道与第二站点进行数据传输，即第二站点的工作信道为第一站点的工作信道之外的其它信道，所以，即使第一站点的工作信道中包括主信道，接入点也还是能通过其它信道与第二站点进行数据传输，进一步地，对于接入点而言，虽然第一站点的工作信道只占用了其可用带宽资源的一部分，但是，其仍然能够利用其它信道与第二站点进行数据传输，从而使得接入点除第一站点的工作信道之外的剩余带宽资源也能同时被用于数据传输，以此提高了接入点的资源利用率。
实施例2
本申请实施例提供的又一种信道传输方法，在该实施例中，重点从上行传输的角度继续说明，具体的，如图3所示，包括以下步骤：
S301、接入点向第一站点发送第一信令，第一信令用于指示第一站点启用带宽功率节省模式、以及第一站点可用的第一信道集合，第一信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
当站点的电池电量较低、应用层指定站点启用带宽功率节省模式、上下行数据量减小或多个信道上干扰较大，仅有部分信道条件较好时，接入点可以发起控制站点启用带宽功率节省模式，启用带宽功率节省模式的站点只在其与接入点约定的信道集合(如第一信道集合)上侦听和\或传输数据。
本实施例中，第一信令可以携带第一站点的标识，第一站点的标识与第一信道集合一一对应，当第一站点接收到第一信令后，根据第一站点的标识与第一信道集合的对应关系及自身的标识，确定第一信令指示的第一信道集合。
需要指出的是，当由接入点控制第一站点启用带宽功率节省模式时，接入点无需得到第一站点的ACK确认，就可以认为第一站点已经启用带宽 功率节省模式，并通过第一站点的工作信道与接入点进行数据传输，这是因为，即使第一站点未按照接入点的指示成功启用带宽功率节省模式，那么接入点与第一站点之间也能正常进行数据传输。
S302、接入点控制第二站点启用带宽功率节省模式，具体地，控制方式可以参见S301；
也就是说，本实施例中的第二站点也为带宽功率节省模式下的站点，本实施例中，接入点同时为带宽功率节省模式下的两个站点进行数据传输。
如上一实施例所述，当接入点通过其它信道同时与其它站点进行数据传输时，若其它站点为带宽功率节省模式下的站点，则此时第一信令可以同时携带其它站点的标识，若其它站点为多个站点且多个站点属于组站点，则此时第一信令可以同时携带组站点的组地址，当然，第一信令还可以携广播地址，该广播地址对应接入点下所有的站点。
需要说明的是，步骤S301与步骤S302之间并不限定先后执行顺序，即步骤S301可以在步骤S302之前进行，也可以在步骤S302之后进行。
S303、接入点向第一站点发送用于指示第一站点的工作信道的第一触发帧、及向第二站点发送用于指示所述第二站点的工作信道的第二触发帧；
第一触发帧用于触发第一站点以预设发送时刻为起始时间发送数据，第二触发帧用于触发所述第二站点以预设发送时刻为起始时间发送数据，第一站点的工作信道为第一信道集合的子集，第一站点的工作信道与第二站点的工作信道构成接入点可用带宽的一部分或全部。
本实施例中的触发帧用于触发站点发送上行数据，且其通过向第一站点和第二站点指示数据发送的起始时间，实现了上行数据的发送在时间上的对齐。
本实施例中，接入点为第一站点分配的第一信道集合和接入点为第二站点分配的信道集合可以相同，也可以不同。然而，无论两个信道集合是否相同，在使用FDMA方式(频分多址接入，例如OFDMA方式)时，为了避免两个站点发送数据时发生碰撞，基于两个信道集合的工作信道需要是无重叠的。在使用其他方式(例如MU-MIMO)时，两者的信道可以重叠。
本实施例中信道集合的子集包括信道集合或信道集合的一部分。
S304、第一站点利用第一站点的工作信道以预设发送时刻为起始时间 向接入点发送数据；
S305、第二站点利用第二站点的工作信道以预设发送时刻为起始时间向接入点发送数据；
需要说明的是，步骤S304与步骤S305之间并不限定先后执行顺序，即步骤S304可以在步骤S305之前进行，也可以在步骤S305之后进行。
S306、接入点向带宽功率节省模式的站点发送更新指令，更新指令用于指示接入点为带宽功率节省模式下的站点分配的更新后的信道集合，更新后的信道集合中的信道的总的带宽小于接入点的可用信道的带宽，更新后的信道集合与带宽功率节省模式下的站点更新前的信道集合不同。
本实施例中，更新指令用于更新站点的功率节省模式。无论是第一站点还是第二站点，更新前的信道集合与更新后的信道集合不同，具体的，包括：
当更新前的信道集合中的信道的总带宽与更新后的信道集合中的信道的总带宽不同时，更新前的信道集合中的信道与更新后的信道集合中的信道完全不同；
和/或，更新前的信道集合中的信道与更新后的信道集合中的信道有重叠；
和/或，更新前的信道集合中的信道与更新后的信道集合中的信道完全相同。
当更新前的信道集合中的信道的总带宽与更新后的信道集合中的信道的总带宽相同时，更新前的信道集合中的信道与更新后的信道集合中的信道完全不同；
和/或，更新前的信道集合中的信道与更新后的信道集合中的信道有重叠。
需要说明的是，本实施例中的A与B有重叠仅指A与B有交集。
对于上述更新前后信道集合的情况，举例说明：
假设接入点的可用带宽为80MHz，共可分为四个信道，分别为信道1、信道2、信道3和信道4，信道1又可分为子信道1及子信道2，每个信道占用的带宽为20MHz，每个子信道占用的带宽为10MHz；
若更新前的信道集合中的信道为信道1，当更新前的信道集合对应的 信道带宽与更新后的信道集合对应的信道带宽不同时，更新后的信道集合可以为信道3和信道4，此为信道完全不同的情况；
更新后的信道集合也可以为信道1和信道2，此时属于信道有重叠，重叠信道为信道2；
更新后的信道集合也可以为信道1的子信道1，此为信道完全相同(即都是信道1)的情况。
假设更新前的信道集合为信道1和信道2；
当更新前的信道集合对应的信道带宽与更新后的信道集合对应的信道带宽相同时，更新后的信道集合可以为信道3和信道4；和/或，
更新后的信道集合可以为信道2和信道3，重叠信道为信道2。
本实施例中，第一站点和第二站点均为带宽功率节省模式的站点，接入点向第一站点和第二站点发送触发帧，触发帧用于触发第一站点和第二站点以预设时间为起始时间发送数据，以此实现了第一站点和第二站点上行发送数据在时间上的对齐，并且，由于第一站点的工作信道与第二站点的工作信道不重叠，所以，本实施例中接入点能够同时控制两个带宽功率节省模式的站点的上行数据的混合发送，提高了接入点的资源利用率。
在预定第一信道集合后，第一站点可与接入点间进行多次数据发送和多次数据接收。
从上述步骤可以看出，本实施例中，接入点在与带宽功率节省模式的站点进行通信的情况下，还可以利用剩余信道，与其它站点进行通信，因此，能够提高接入点的资源利用率。
实施例3
本申请实施例提供的又一种信道传输方法，在该实施例中，重点从下行传输的角度进行说明，具体的，如图4所示，该方法包括：
S401、第一站点向接入点发送请求，所述请求携带第四信道集合，第四信道集合为启用功率节省模式的站点向接入点申请的可用信道，第四信道集合中的信道的总带宽小于接入点的可用信道的带宽；
其中，可用信道可以使用信道的编号，或者相对当前接入点的主信道 的位置偏移的指示来，或者信道的中心频率和带宽来表示。
这里，需要说明的是，站点向接入点请求的信道集合与接入点接收到的请求中携带的信道集合相同，关于本申请中使用的“第二信道集合”、“第三信道集合”及“第四信道集合”的表述，“第X”仅为描述清楚表示，在接入点和站点进行交互的场景下，发送方发送的信道集合即为接收方接收到的信道集合。
S402、接入点发送请求响应，请求响应中携带第五信道集合，第五信道集合中的信道的总带宽小于接入点的可用信道的带宽；
本实施例中第一站点启用功率节省模式的过程由第一站点自身发起，此时，第一站点只有接收到接入点返回对所述请求的响应后，才能按照所述响应中携带的信道集合与接入点进行数据传输。
本实施例中，虽然第一站点在请求中请求的是第四信道集合，基于负载均衡的考虑，接入点响应给第一站点的信道集合却不一定是第四信道集合，即此时第四信道集合与第五信道集合不同，如，当第四信道集合对应的信道上负荷太重，同时第五信道集合对应的信道上负荷较轻时，接入点响应给第一站点的信道集合为第五信道集合。
当然，第一站点请求的第四信道集合满足接入点对负载均衡的考虑时，接入点响应给第一站点的第五信道集合与第四信道集合相同。也就是说，此时接入点认可第一站点申请的第四信道集合，接入点反馈的请求响应中的第五信道集合即为第四信道集合。
S403、接入点利用第一站点的工作信道向第一站点发送物理层协议数据单元PPDU；
本实施例中，如图5所示，所述PPDU包括业务数据、用于指示第一站点的数据接收方式的指示信令(信令A和信令B)、用于指示第一站点的工作信道的前导，以及用于指示第一站点的数据发送资源指示的控制信令。其中，具体地，前导可以为兼容前导，在不同的20MHz信到内，可以传不同的信令B信息。
接入点向第一站点发送的、用于指示第一站点的工作信道的前导所包含的第一站点的工作信道指示信息在第一信道集合内发送。接入点所发送的部分前导信号可以在第一信道集合外，用以服务在第一信道集合外传输 的用户。
S404、接入点利用第二站点的工作信道向第二站点发送PPDU；
在第一站点占用主信道的情况下，为了使得第二站点能够接收到控制信息，具体地，如图6所示，发送给第二站点的PPDU包括业务数据、用于指示第二站点的数据接收方式的指示信令以及用于指示第二站点的工作信道的前导，其中，指示信息即信标帧可以携带在第二站点的工作信道。
具体地，本实施例中，第一站点的工作信道为第一站点在带宽功率节省模式下的信道集合的子集；当第二站点启用带宽功率节省模式时，第二站点的工作信道为第二站点在带宽功率节省模式下的信道集合的子集，第一站点的工作信道与第二站点的工作信道不重叠。
S405、第一站点向接入点发送更新请求，更新请求携带第七信道集合，第七信道集合为更新后的所述带宽功率节省的站点向接入点申请的信道集合，第七信道集合中的信道的总带宽小于接入点的可用信道的带宽，第七信道集合与带宽功率节省模式下的站点更新之前的信道集合不同；
当然，第二站点也可以请求更新，这里不再赘述。
S406、接入点发送响应于更新请求的指令，指令用于指示将站点的信道集合修改为第七信道集合。
需要说明的是，步骤S403与步骤S404之间并不限定先后执行顺序，即步骤S403可以在步骤S404之前进行，也可以在步骤S404之后进行。
另外，虽然本实施例中，对第一站点的带宽功率节省模式的更新是由第一站点发起的，但是对于更新前后信道集合之间的关系可以参照上一实施例。
本实施例中，第一站点为带宽功率节省模式下的站点，第二站点为非带宽功率节省模式下的站点，接入点向第一站点和第二站点发送前导，前导用于指示第一站点及第二站点下行接收数据的工作信道，且第一站点的工作信道与第二站点的工作信道不重叠，以此实现了接入点同时为多个站点下行发送数据，提高了节点的资源率。
需要说明的是，对于图3和图4所示的数据传输方法，图3中，接入点控制站点启用带宽功率节省模式(S301及S302)，而图4中，站点主动 要求启用带宽功率节省模式(S401及S402)，这两种方式可以互相参见，并不限定某种方式一定应用在上述实施例所述的上行或下行场景中；同样地，站点带宽功率节省模式的更新可以由接入点发起(S306)，也可以由站点主动发起(S405)，这两种方式可以互相参见，并不限定某种方式一定应用在上述实施例所述的上行或下行场景中。
实施例4
与数据传输的方法实施例相对应，如图7所示，本申请实施例提供的一种接入点包括：
第一数据传输单元710，用于利用第一站点的工作信道与所述第一站点进行数据传输，所述第一站点启用带宽功率节省模式，所述第一站点工作信道为所述第一站点的可用信道；
第二数据传输单元720，用于在利用第一站点的工作信道与所述第一站点进行数据传输的情况下，利用第二站点的工作信道，与第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
可选地，本实施例中所述的接入点还可以包括：
信令发送单元730，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输之前，向所述第一站点发送第一信令，所述第一信令用于指示启用所述带宽功率节省模式、以及所述第一站点可用的第一信道集合，所述第一信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
接收单元740，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输之前，接收所述第一站点启用带宽功率节省模式的请求，所述请求携带第二信道集合，所述第二信道集合为所述第一站点向所述接入点申请的在带宽功率节省模式下的可用信道，所述第二信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
响应单元750，用于向所述第一站点发送请求响应，所述请求响应中携带第三信道集合，所述第三信道集合中的信道的总带宽小于所述接入点 的可用信道的带宽。
其中，信令发送单元用于接入点主动控制站点启用带宽功率节省模式，而接收单元和响应单元用于配合站点主动触发启用带宽功率节省模式。
可选地，本实施例中所述的接入点还可以包括：更新指令发送单元760，用于向所述带宽功率节省模式的站点发送更新指令，所述更新指令用于指示所述接入点为所述带宽功率节省模式下的站点分配的更新后的信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
可选地，为了适用于上行数据的传输，本实施例中，还可以包括：
触发帧发送单元770，用于在所述第一数据传输单元利用所述第一站点的工作信道与第一站点进行数据传输之前，向所述第一站点发送用于指示所述第一站点的工作信道的第一触发帧、及在所述第二数据传输单元利用第二站点的工作信道，与第二站点进行数据传输之前，向所述第二站点发送用于指示所述第二站点的工作信道的第二触发帧，所述第一触发帧用于触发所述第一站点以所述预设发送时刻为起始时间发送数据，所述第二触发帧用于触发所述第二站点以所述预设发送时刻为起始时间发送数据。
在上行传输过程中，第一数据传输单元利用第一站点的工作信道与所述第一站点进行数据传输的具体实现方式可以为：利用所述第一站点的工作信道接收所述第一站点以预设发送时刻为起始时间发送的数据，所述预设发送时刻由所述接入点规定。第二数据传输单元与第二站点进行数据传输的具体实现方式可以为：利用所述第二站点的工作信道接收所述第二站点以所述预设发送时刻为起始时间发送的数据。
其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
在下行传输过程中，第一数据传输单元利用第一站点的工作信道与所述第一站点进行数据传输的具体实现方式可以为：利用所述第一站点的工作信道向所述第一站点发送PPDU，所述PPDU包括业务数据、用于指示所 述第一站点的数据接收方式的指示信令、用于指示所述第一站点的工作信道的前导以及用于指示第一站点的数据发送资源指示的控制信令；第二数据传输单元利用剩余信道，与第二站点进行数据传输的具体实现方式可以为：利用所述第二站点的工作信道向所述第二站点发送PPDU，所述PPDU包括业务数据、用于指示所述第二站点的数据接收方式的指示信令以及用于指示所述第二站点的工作信道的前导；
其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第一站点的工作信道与所述第二站点的工作信道不重叠。可选地，本实施例中，与接入点进行数据传输的第二站点的数量可以为一个或者多个。
本发明实施例所提供的接入点，在与带宽功率节省模式的站点进行通信的情况下，其仍然能够利用剩余信道与其它站点进行数据传输，从而使得接入点除带宽功率节省模式的站点的工作信道之外的剩余带宽资源也能同时被用于数据传输，以此提高了接入点的资源利用率。
实施例5
本申请实施例还提供了一种站点，包括：
带宽功率节省模式启用单元，用于启用带宽功率节省模式；
其中，启用所述带宽功率节省模式的所述站点利用工作信道，与接入点进行数据传输，所述工作信道为所述带宽功率节省模式下所述站点的可用信道，所述接入点用于在与所述站点进行数据传输的情况下，利用第二站点的工作信道，与第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。。
如图8所示，带宽功率节省模式启用单元可以具体包括：
请求发送子单元810，用于向所述接入点发送请求，所述请求携带第四信道集合，所述第四信道集合为启用功率节省模式的所述站点向所述接入点申请的可用信道，所述第四信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
接收子单元820，用于接收所述接入点发送的请求响应，所述请求响应携带第五信道集合，所述第五信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
或者，带宽功率节省模式启用单元启用带宽功率节省模式的具体实现方式可以为：接收所述接入点发送的第二信令，所述第二信令用于指示所述站点启用所述带宽功率节省模式，以及指示所述站点可用的第六信道集合，所述第六信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
可选地，本实施例所述的站点还可以包括：
更新请求发送单元830，用于所述站点启用所述带宽功率节省模式后，向所述接入点发送更新请求，所述更新请求携带第七信道集合，所述第七信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述第七信道集合与在带宽功率节省模式下的所述站点更新之前的信道集合不同；
更新指令接收单元840，用于接收所述接入点对所述更新请求的响应，所述响应用于指示将所述站点的信道集合修改为第七信道集合。
进一步地，更新指令接收单元还可以用于：在所述站点启用所述带宽功率节省模式后，接收所述接入点发送的更新指令，所述更新指令用于指示所述接入点为所述站点分配的更新后的信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与更新前所述带宽功率节省模式的站点的信道集合不同。
本实施例中，接入点利用站点的工作信道在与处于带宽功率节省模式的站点进行数据传输的情况下，利用其它信道与其它站点进行数据传输，即本申请的方案中，接入点能同时为其它站点及带宽功率节省模式下的站点进行数据传输，也就是说，对于接入点而言，虽然站点的工作信道只占用了其可用带宽资源的一部分，但是，其仍然能够利用剩余信道与其它站点进行数据传输，从而使得接入点除站点的工作信道之外的剩余带宽资源也能同时被用于数据传输，以此提高了接入点侧的资源利用率。另外，由于接入点与其它站点进行数据传输的信道，为接入点与站点进行数据传输的工作信道之外的剩余信道，所以，即使站点的工作信道中包括主信道，接入点也还是能通过剩余信道与其它站点进行数据传输。
本实施例方法所述的功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算设备可读取存储介质中。基于这样的理解，本发明实施例对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一台计算设备(可以是个人计算机，服务器，移动计算设备或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同或相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (26)

  1. 一种数据传输方法，其特征在于，包括：
    接入点利用第一站点的工作信道与所述第一站点进行数据传输，所述第一站点启用带宽功率节省模式，所述第一站点的工作信道为所述第一站点的可用信道；
    在所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输的情况下，所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
  2. 根据权利要求1所述的方法，其特征在于，在所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输之前，还包括：所述接入点指示所述第一站点启用所述带宽功率节省模式；
    所述接入点指示所述第一站点启用所述带宽功率节省模式的过程具体包括：
    所述接入点发送第一信令，所述第一信令用于指示启用所述带宽功率节省模式以及所述第一站点可用的第一信道集合，所述第一信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  3. 根据权利要求1所述的方法，其特征在于，在所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输之前，还包括：
    所述接入点接收所述第一站点启用带宽功率节省模式的请求，所述请求携带第二信道集合，所述第二信道集合为所述第一站点向所述接入点申请的在带宽功率节省模式下的可用信道，所述第二信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
    所述接入点向所述第一站点发送请求响应，所述请求响应中携带第三信道集合，所述第三信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，还包括：
    所述接入点向所述带宽功率节省模式的站点发送更新指令，所述更新指令用于指示所述接入点为所述带宽功率节省模式的站点分配的更新后的 信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输包括：
    所述接入点利用所述第一站点的工作信道接收所述第一站点以预设发送时刻为起始时间发送的数据，所述预设发送时刻由所述接入点规定；
    所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输包括：
    所述接入点利用第二站点的工作信道接收所述第二站点以所述预设发送时刻为起始时间发送的数据；
    其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
  6. 根据权利要求5所述的方法，其特征在于，所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输之前，还包括：
    所述接入点向所述第一站点发送用于指示所述第一站点的工作信道的第一触发帧、及在所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输之前，向所述第二站点发送用于指示所述第二站点的工作信道的第二触发帧，所述第一触发帧用于触发所述第一站点以所述预设发送时刻为起始时间发送数据，所述第二触发帧用于触发所述第二站点以所述预设发送时刻为起始时间发送数据。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述接入点利用所述第一站点的工作信道与所述第一站点进行数据传输包括：
    所述接入点利用所述第一站点的工作信道向所述第一站点发送物理层协议数据单元PPDU，所述PPDU包括业务数据、用于指示所述第一站点的数据接收方式的指示信令、用于指示所述第一站点的工作信道的前导以及用于指示所述第一站点的数据发送资源指示的控制信令；
    所述接入点利用第二站点的工作信道，与所述第二站点进行数据传输包括：
    所述接入点利用所述第二站点的工作信道向所述第二站点发送PPDU，所述PPDU包括业务数据、用于指示所述第二站点的数据接收方式的指示信令以及用于指示所述第二站点的工作信道的前导；
    其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第二站点在带宽功率节省模式下的信道集合的子集为所述第二站点的工作信道，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，所述第二站点的数量为一个或者多个。
  9. 一种数据传输方法，其特征在于，包括：
    站点启用带宽功率节省模式；
    启用所述带宽功率节省模式的所述站点利用工作信道，与接入点进行数据传输，所述工作信道为所述带宽功率节省模式下所述站点的可用信道，所述接入点用于在与所述站点进行数据传输的情况下，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
  10. 根据权利要求9所述的方法，其特征在于，所述站点启用带宽功率节省模式，包括：
    所述站点向所述接入点发送请求，所述请求携带第四信道集合，所述第四信道集合为所述站点向所述接入点申请的可用信道，所述第四信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
    所述站点接收所述接入点发送的请求响应，所述请求响应携带第五信道集合，所述第五信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  11. 根据权利要求9所述的方法，其特征在于，所述站点启用带宽功 率节省模式，包括：
    所述站点接收所述接入点发送的第二信令，所述第二信令用于指示所述站点启用所述带宽功率节省模式，以及指示所述站点可用的第六信道集合，所述第六信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  12. 根据权利要求9-11任一项所述的方法，其特征在于，所述站点启用所述带宽功率节省模式后，还包括：所述站点向所述接入点发送更新请求，所述更新请求携带第七信道集合，所述第七信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述第七信道集合与在带宽功率节省模式下的所述站点更新前的信道集合不同；
    所述站点接收所述接入点对所述更新请求的指令的响应，所述响应用于指示将所述站点的信道集合修改为所述第七信道集合。
  13. 根据权利要求9-11任一项所述的方法，其特征在于，所述站点启用所述带宽功率节省模式后，还包括：
    所述站点接收所述接入点发送的更新指令，所述更新指令用于指示所述接入点为所述站点分配的更新后的信道集合，所述更新后的信道中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
  14. 一种接入点，其特征在于，包括：
    第一数据传输单元，用于利用第一站点的工作信道与所述第一站点进行数据传输，所述第一站点启用带宽功率节省模式，所述第一站点的工作信道为所述第一站点的可用信道；
    第二数据传输单元，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输的情况下，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
  15. 根据权利要求14所述的接入点，其特征在于，还包括：
    信令发送单元，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输之前，向所述第一站点发送第一信令，所述第一信令用于指 示启用所述带宽功率节省模式、以及所述第一站点可用的第一信道集合，所述第一信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  16. 根据权利要求14所述的接入点，其特征在于，还包括：
    接收单元，用于在利用所述第一站点的工作信道与所述第一站点进行数据传输之前，接收所述第一站点启用带宽功率节省模式的请求，所述请求携带第二信道集合，所述第二信道集合为所述第一站点向所述接入点申请的在带宽功率节省模式下的可用信道，所述第二信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
    响应单元，用于向所述第一站点发送请求响应，所述请求响应中携带第三信道集合，所述第三信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  17. 根据权利要求14-16任一项所述的接入点，其特征在于，还包括：
    更新指令发送单元，用于向所述带宽功率节省模式的站点发送更新指令，所述更新指令用于指示所述接入点为所述带宽功率节省模式的站点分配的更新后的信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
  18. 根据权利要求14-17所述的接入点，其特征在于，所述第一数据传输单元用于利用第一站点的工作信道与所述第一站点进行数据传输包括：
    所述第一数据传输单元具体用于，利用所述第一站点的工作信道接收所述第一站点以预设发送时刻为起始时间发送的数据，所述预设发送时刻由所述接入点规定；
    所述第二数据传输单元用于第二站点的工作信道，与所述第二站点进行数据传输包括：
    所述第二数据传输单元具体用于，利用第二站点的工作信道接收所述第二站点以所述预设发送时刻为起始时间发送的数据；
    其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第 二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第一站点的工作信道与所述第二站点的工作信道不重叠。
  19. 根据权利要求18所述的接入点，其特征在于，还包括：
    触发帧发送单元，用于在所述第一数据传输单元利用所述第一站点的工作信道与第一站点进行数据传输之前，向所述第一站点发送用于指示所述第一站点的工作信道的第一触发帧、及在所述第二数据传输单元利用第二站点的工作信道，与所述第二站点进行数据传输之前，向所述第二站点发送用于指示所述第二站点的工作信道的第二触发帧，所述第一触发帧用于触发所述第一站点以所述预设发送时刻为起始时间发送数据，所述第二触发帧用于触发所述第二站点以所述预设发送时刻为起始时间发送数据。
  20. 根据权利要求14-19所述的接入点，其特征在于，所述第一数据传输单元用于利用第一站点的工作信道与所述第一站点进行数据传输包括：
    所述第一数据传输单元具体用于，利用所述第一站点的工作信道向所述第一站点发送物理层协议数据单元PPDU，所述PPDU包括业务数据、用于指示所述第一站点的数据接收方式的指示信令、用于指示所述第一站点的工作信道的前导以及用于指示所述第一站点的数据发送资源指示的控制信令；
    第二数据传输单元用于利用第二站点的工作信道信道，与所述第二站点进行数据传输包括：
    所述第二数据传输单元具体用于，利用所述第二站点的工作信道向所述第二站点发送PPDU，所述PPDU包括业务数据、用于指示所述第二站点的数据接收方式的指示信令以及用于指示所述第二站点的工作信道的前导；
    其中，所述第一站点的工作信道为所述第一站点在带宽功率节省模式下的信道集合的子集；当所述第二站点启用带宽功率节省模式时，所述第二站点的工作信道为所述第二站点在带宽功率节省模式下的信道集合的子集，所述第二站点在带宽功率节省模式下的信道集合的子集为所述第二站点的工作信道，所述第一站点的工作信道与所述第二站点的工作信道不重 叠。
  21. 根据权利要求14至20任一项所述的接入点，其特征在于，所述第二数据传输单元用于利用第二站点的工作信道，与所述第二站点进行数据传输包括：
    所述第二数据传输单元具体用于，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第二站点的数量为一个或者多个。
  22. 一种站点，其特征在于，包括：
    带宽功率节省模式启用单元，用于启用带宽功率节省模式；
    启用所述带宽功率节省模式的所述站点利用工作信道，与接入点进行数据传输，所述工作信道为所述带宽功率节省模式下所述站点的可用信道，所述接入点用于在与所述站点进行数据传输的情况下，利用第二站点的工作信道，与所述第二站点进行数据传输，所述第一站点的工作信道与所述第二站点的工作信道构成所述接入点的可用信道的全部或一部分。
  23. 根据权利要求22所述的站点，其特征在于，所述带宽功率节省模式启用单元，包括：
    请求发送子单元，向所述接入点发送请求，所述请求携带第四信道集合，所述第四信道集合为所述站点向所述接入点申请的可用信道，所述第四信道集合中的信道的总带宽小于所述接入点的可用信道的带宽；
    接收子单元，用于接收所述接入点发送的请求响应，所述请求响应携带第五信道集合，所述第五信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  24. 根据权利要求22所述的站点，其特征在于，所述带宽功率节省模式启用单元用于启用带宽功率节省模式，包括：
    所述带宽功率节省模式启用单元具体用于，接收所述接入点发送的第二信令，所述第二信令用于指示所述站点启用所述带宽功率节省模式，以及指示所述站点可用的第六信道集合，所述第六信道集合中的信道的总带宽小于所述接入点的可用信道的带宽。
  25. 根据权利要求22-24任一项所述的站点，其特征在于，还包括：
    更新请求发送单元，用于所述站点启用所述带宽功率节省模式后，向 所述接入点发送更新请求，所述更新请求携带第七信道集合，所述第七信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述第七信道集合与在带宽功率节省模式下的所述站点更新前的信道集合不同；
    更新指令接收单元，用于接收所述接入点对所述更新请求的响应，所述响应用于指示将所述站点的信道集合修改为所述第七信道集合。
  26. 根据权利要求22-24任一项所述的站点，其特征在于，所述更新指令接收单元还用于：
    在所述站点启用所述带宽功率节省模式后，接收所述接入点发送的更新指令，所述更新指令用于指示所述接入点为所述站点分配的更新后的信道集合，所述更新后的信道集合中的信道的总带宽小于所述接入点的可用信道的带宽，所述更新后的信道集合与在所述带宽功率节省模式下的站点更新前的信道集合不同。
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