WO2016095161A1 - 一种获取站点设备请求的方法、接入点设备及站点设备 - Google Patents

一种获取站点设备请求的方法、接入点设备及站点设备 Download PDF

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Publication number
WO2016095161A1
WO2016095161A1 PCT/CN2014/094221 CN2014094221W WO2016095161A1 WO 2016095161 A1 WO2016095161 A1 WO 2016095161A1 CN 2014094221 W CN2014094221 W CN 2014094221W WO 2016095161 A1 WO2016095161 A1 WO 2016095161A1
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WIPO (PCT)
Prior art keywords
channel
scheduling
site
idle
site device
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PCT/CN2014/094221
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English (en)
French (fr)
Inventor
李波
屈桥
李云波
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202010550511.6A priority Critical patent/CN111885738B/zh
Priority to PCT/CN2014/094221 priority patent/WO2016095161A1/zh
Priority to CN201480083189.3A priority patent/CN107079467B/zh
Publication of WO2016095161A1 publication Critical patent/WO2016095161A1/zh
Priority to US15/624,791 priority patent/US10728917B2/en
Priority to US16/918,883 priority patent/US11350435B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access
    • 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
    • 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
    • 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]

Definitions

  • the present invention relates to the field of wireless local area network technologies, and in particular, to a method for acquiring a site device request, an access point device, and a site device.
  • a base station in a wireless local area network (English: Wireless Local Access Network, WLAN for short) is also called an access point device (English: Access Point, abbreviated as AP).
  • OFDM Orthogonal Frequency Division Multiple
  • OFDMA Orthogonal Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • MIMO Multiple-Input Multiple-Output
  • a variety of techniques are available for obtaining an uplink data request of a STA.
  • the first one is to obtain the uplink data request through the random competition mode.
  • the random competition mode does not require the central station device to control the network, so the structure is simple and the networking is flexible, and is widely used in the distributed network, but when When the system load is large and the competition increases, conflict avoidance is difficult and cannot meet the access requirements of specific services.
  • the second method is to obtain an uplink data request by using a polling method, that is, the AP is configured to send, by using an AP, an uplink data request by using an OFDMA on a specified subchannel, which is blindly known because it does not know which STAs have cached data.
  • polling is performed, the system efficiency is reduced because the AP polls a large number of STAs that do not have uplink data.
  • Embodiments of the present invention provide a method for acquiring a site device request, an access point device, and a site design.
  • the backup can meet the access requirements of specific services, and can avoid invalid feedback of a large number of site devices, thereby improving the efficiency of the system.
  • a first aspect of the embodiments of the present invention provides a method for obtaining a site device request, including:
  • the access point device sends a control frame to the site device, where the control frame includes device indication information and allocation information of an available channel, the device indication information is used to indicate a scheduling site device, and the allocation information is included for each of the scheduling site devices.
  • the access point device sends a frame according to the received request, and performs resource scheduling on each of the site devices.
  • the sending further includes:
  • the access point device uses a part of the subchannels of the idle channel as the scheduling channel, and uses the remaining partial subchannels of the idle channel as the random contention channel.
  • the method further includes:
  • the access point device uses a part of the at least two idle channels as the scheduling channel, and uses the remaining idle channel as the random contention channel.
  • the access point device will be the at least two A part of the idle channels is used as the scheduling channel, and the remaining ones are used as the random contention channel:
  • the access point device uses the primary channel as the scheduling channel and the at least one secondary channel as the random contention channel.
  • the method further includes:
  • the access point device uses a part of the subchannels of each of the idle channels as the scheduling channel, and uses the remaining subchannels of each of the idle channels as the random contention channel.
  • the device indication information is further used to indicate a non-scheduled site device.
  • the method before the access point device sends a control frame to the site device, the method also includes:
  • the access point device selects a scheduling site device among each of the site devices according to a priority of a service of each of the site devices.
  • the information of the selectable random contention channel is used to indicate a selectable random A competing channel, the selectable random contention channel obtained by removing the scheduling channel over the available channel.
  • a second aspect of the embodiments of the present invention provides a method for obtaining a site device request, including:
  • the site device receives a control frame sent by the access point device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, and the allocation information is included in each of the scheduling sites.
  • the device allocates information of the scheduling channel and information of the selectable random contention channel allocated for the non-scheduled site device;
  • the site device determines a corresponding scheduling channel according to the allocation information of the available channel, and sends a request to send a frame by using the determined scheduling channel;
  • the station device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, and sends a request to send a frame by using the selected idle channel or idle subchannel.
  • the site device determines, according to the allocation information of the available channel, a corresponding scheduling channel, where The method also includes:
  • the site device determines that the device has cached data.
  • the device indication information is further used to indicate a non-scheduled site device, and if the site device is not the scheduling site device, the site device is allocated according to the available channel.
  • the method before the selecting at least one idle channel or the idle subchannel in the random contention channel, the method further includes:
  • the site device determines, according to the device indication information, that the device is the non-scheduled site device.
  • the method further includes:
  • the station device waits for receiving the control frame until the waiting duration is equal to the preset duration, and the step of transmitting the request sending frame by using the determined scheduling channel is performed.
  • a third aspect of the embodiments of the present invention provides an access point device, including:
  • a sending module configured to send a control frame to the site device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, and the allocation information is included for each of the scheduling sites
  • the device allocates information of the scheduling channel and information of the selectable random contention channel allocated for the non-scheduled site device;
  • a receiving module configured to receive, by each of the site devices, a frame that is sent according to the request sent by the control frame;
  • a scheduling module configured to send a frame according to the received request, and perform resource scheduling on each of the site devices.
  • the device further includes:
  • a first channel allocation module configured to use a part of the subchannels of the idle channel as the scheduling channel, and use a remaining part of the subchannel of the idle channel as the random contention channel.
  • the device further includes:
  • a second channel allocation module configured to use a part of the at least two idle channels as the scheduling channel, and use the remaining idle channel as the random contention channel.
  • the second channel allocation module is specifically configured to:
  • the at least one secondary channel is used as the random contention channel.
  • the device further includes:
  • a third channel allocation module configured to use a part of the subchannels of each of the idle channels as the scheduling channel, and use a remaining subchannel of each of the idle channels as the random contention channel.
  • the device indication information is further used to indicate a non-scheduled site device.
  • the device further includes:
  • a selection module configured to select a scheduling site device among each of the site devices according to a priority of a service of each of the site devices.
  • the information of the selectable random contention channel is used to indicate a selectable random A competing channel, the selectable random contention channel obtained by removing the scheduling channel over the available channel.
  • a fourth aspect of the embodiments of the present invention provides a method for acquiring a site device request, including:
  • a receiving module configured to receive a control frame sent by the access point device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, where the allocation information is included in each Decoding the information of the scheduling channel allocated by the station device and the information of the selectable random contention channel allocated for the non-scheduled site device;
  • a determining module configured to determine, according to the device indication information, whether the site device is the tone Site equipment
  • a processing module configured to determine, according to the allocation information of the available channel, a corresponding scheduling channel, if the determining module determines that the site device is the scheduling site device;
  • a sending module configured to send a request sending frame by using the determined scheduling channel, so that the access point device sends a frame according to the request to perform resource scheduling for the site device;
  • the processing module is further configured to:
  • the determining module determines that the site device is not the scheduling site device, selecting at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel;
  • the sending module is further configured to:
  • the request transmission frame is transmitted through the selected idle channel or idle subchannel.
  • the device further includes:
  • a detecting module if the determining module determines that the site device is the scheduling site device, detecting whether the site device has a data cache, and if detecting that a data cache exists, triggering the processing module to be available according to the The allocation information of the channel determines the corresponding scheduling channel.
  • the device indication information is further used to indicate a non-scheduled site device, and if the site device is not the scheduling site device, the determining module is further configured to:
  • the sending module is further configured to:
  • the control frame starts to wait until the waiting duration is equal to the preset duration, and the request sending frame is sent through the determined scheduling channel.
  • a fifth aspect of the embodiments of the present invention further provides an access point device, where the access point device includes a wireless signal transceiver device, a memory, and a processor, wherein the memory stores a set of program codes, and processes The program is used to call the program code stored in the memory to perform the following operations:
  • control frame includes device indication information and allocation information of an available channel
  • the device indication information is used to indicate a scheduling site device
  • the allocation information includes allocating a scheduling channel for each of the scheduling site devices.
  • a sixth aspect of the embodiments of the present invention further provides a site device, wherein the site device includes a wireless signal transceiver device, a memory, and a processor, wherein the memory stores a set of program codes, and the processor is configured to call the memory for storage.
  • the site device receives a control frame sent by the access point device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, and the allocation information is included in each of the scheduling sites.
  • the device allocates information of the scheduling channel and information of the selectable random contention channel allocated for the non-scheduled site device;
  • the site device determines a corresponding scheduling channel according to the allocation information of the available channel, and sends a request to send a frame by using the determined scheduling channel;
  • the station device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, and sends a request to send a frame by using the selected idle channel or idle subchannel.
  • a seventh aspect of the embodiments of the present invention further provides a computer storage medium, wherein the computer storage medium stores a program, where the program includes some or all of the methods for obtaining a site device request provided by the first aspect. step.
  • the eighth aspect of the embodiments of the present invention further provides a computer storage medium, wherein the computer storage medium stores a program, where the program includes some or all of the methods for obtaining a site device request provided by the second aspect. step.
  • a ninth aspect of the embodiments of the present invention further provides a system for acquiring a site device request, where the system package Including an access point device and at least one site device, where:
  • the access point device is as in the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, or the third The fourth possible implementation manner of the aspect, or the fifth possible implementation manner of the third aspect, or the sixth possible implementation manner of the third aspect, or the access point device in the seventh possible implementation manner of the third aspect ;
  • the site device is as in the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, or the site device in the third possible implementation manner of the fourth aspect.
  • the embodiment of the present invention sends a control frame to the site device, where the control frame includes device indication information and allocation information of available channels, where the device indication information is used to indicate a scheduling site device, and the allocation information is included for each
  • the scheduling site device allocates information of a scheduling channel and information of a selectable random contention channel allocated for the non-scheduled site device, and receives a request for each of the site devices to send a frame according to the request sent by the control frame, which can satisfy a specific service. Access requirements can avoid invalid feedback of a large number of site devices, thereby improving the efficiency of the system.
  • FIG. 1 is a schematic diagram of a method for obtaining a site device request according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a hybrid single channel access mode according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a hybrid multi-channel access mode according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another hybrid multi-channel access method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an access point device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another access point device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a site device according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of another site device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a system for obtaining a site device request according to an embodiment of the present invention.
  • the embodiment of the present invention can be applied to a wireless local area network, and the wireless local area network can be a basic service set including an access point (abbreviation: BSS, English: Basic Service Set).
  • BSS Basic Service Set
  • the network may include multiple basic service sets, and each basic service set may include one access point device (English: Access Point (AP) and multiple site devices (English: Station, referred to as STA) associated with the AP.
  • AP Access Point
  • STA Station
  • the AP is also referred to as a wireless access point or hotspot.
  • the AP is an access point for mobile users to enter the wired network. It is mainly deployed in the home, inside the building, and inside the campus. The typical coverage radius is tens of meters to hundreds of meters, and 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 main standard adopted by AP is IEEE (English: Institute of Electrical and Electronics) Engineers, Chinese: Institute of Electrical and Electronics Engineers) 802.11 series.
  • the AP may be a terminal device or a network device with a WIFI chip.
  • the AP may be a device supporting the 802.11ax standard.
  • the AP may be a device supporting multiple WLANs (Wireless Local Area Network, 802.11n, 802.11g, 802.11b, and 802.11a).
  • the STA may be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
  • a mobile phone supporting WIFI communication function a tablet computer supporting WIFI communication function, a set top box supporting WIFI communication function, and a computer supporting WIFI communication function.
  • 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.
  • bandwidths of 20 MHz, 40 MHz, 80 MHz, and 160 MHz (80+80 MHz) currently used by the WLAN but since the present invention is not necessarily related to the actual bandwidth of a single channel or multiple channels, other bandwidths can also be used in the present invention. Implementation. In the present invention, a channel with a bandwidth of 20 MHz is used as a single channel, and an integer multiple of 20 MHz channels is used as a multi-channel as an example.
  • FIG. 1 is a schematic diagram of a method for obtaining a site device request according to an embodiment of the present invention. Embodiments of the invention are described from the perspective of an access point device.
  • the method for obtaining a site device request in the embodiment of the present invention as shown in FIG. 1 may include:
  • the access point device sends a control frame to the site device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, and the allocation information includes, for each, the scheduling.
  • the site device allocates information of the scheduling channel and information of the selectable random contention channels allocated for the non-scheduled site devices.
  • the available channel may be a continuous channel or a discrete channel, which is not limited in the present invention.
  • the non-scheduled site device may include a basic service set, and the device indication is removed.
  • the information indicating the site device other than the scheduling site device assuming that the basic service set includes STA1, STA2, STA3, STA4, and STA5, and the device indication information indicates that STA1 and STA2 are scheduling site devices, and STA3, STA4, and STA5 are non- Scheduling site devices, that is, STA3, STA4, and STA5 can access the channel through random contention;
  • the device indication information is further used to indicate a non-scheduled site device, and the non-scheduled site device is determined by the device indication information, and the basic service set still includes STA1, STA2, STA3, STA4, and STA5.
  • the device indication information indicates that STA1 and STA2 are scheduling site devices, and STA3 and STA4 are non-scheduled site devices, that is, STA5 cannot access the channel, and by controlling the randomly competitive site device, the probability of data collision can be effectively controlled, thereby Further improve the efficiency of the system.
  • the access point device may select a scheduling site device in each of the site devices according to a priority of a service of each site device, and then allocate a corresponding scheduling channel to each of the scheduling site devices, where the random The contention channel removes the scheduling channel part for the available channel, and selects the scheduling site device by the priority of the service of the station device, ensuring the access requirement of the high priority service.
  • the access point device may use a part of the subchannels of the idle channel as a scheduling channel, and use the remaining partial channels of the idle channel as a random competition channel, where the division of the subchannels may be defined by a standard, or may be divided by the access point device, which is not limited by the present invention;
  • the idle channel is divided into 8 subchannels
  • STA1-2 is a scheduling site device
  • STA3-6 is a non-scheduled site device
  • the access point device can use subchannel 1 as a scheduling channel.
  • Assigned to STA1 subchannel 2 is assigned to STA2 as a scheduling channel, and the remaining subchannels 3-8 are selected as a random contention channel.
  • the access point device may use a part of the at least two idle channels as the scheduling channel, and use the remaining ones as the Random competition channel
  • the access point device may use the primary channel as the scheduling channel, and the at least one secondary channel For the random contention channel;
  • each of the at least two idle channels may include multiple subchannels, and the access point device may use all of the subchannels of the idle channel as the scheduling channel, All the remaining subchannels of the idle channel are used as the random competition new track;
  • each idle channel is divided into 8 subchannels, and STA11-18 is a scheduling site device.
  • STA21-27 is a non-scheduled site device, and the access point device may allocate 8 subchannels of the primary channel as scheduling channels to STAs 11-18, respectively, and 8 subchannels of the slave channel as optional random contention channels.
  • the access point device may also use a part of the subchannels of each of the idle channels as the scheduling channel, and use the remaining subchannels of each of the idle channels as The random contention channel;
  • each idle channel is divided into 8 subchannels
  • STA11-12 and STA21-22 are scheduling station devices.
  • STA13-16 and STA23-26 are non-scheduled site devices, and the access point device can allocate a scheduling channel in any of the following two ways:
  • the access point device allocates subchannel 1 and subchannel 2 of the primary channel to the scheduling site device STA11-12, Subchannel 1 and subchannel 2 of the channel are allocated to the scheduling site device STA21-22, and the remaining subchannels are used as random content channels;
  • the access point device allocates subchannel 1 and subchannel 2 of the primary channel to the scheduling site device STA11-12, from the channel Subchannel 3 and subchannel 4 are allocated to the scheduling site equipment STA 21-22, and the remaining subchannels are used as random contention channels.
  • the control frame may be as shown in Table 1, wherein the device indication information may be represented by a Scheduled STAs field, used to indicate a scheduled site device, for example, STA1 and STA2 are scheduling channels, and the Scheduled STAs field may include STA1 and Device identification information of STA2;
  • the Frame control is used to indicate the type of the frame, such as the reserved frame type, and the like;
  • the RA is an address on the wireless medium, that is, the target address of the control frame, that is, the address of each station device;
  • the address of the control frame that is, the address of the access point device;
  • the FCS is an error check code, and the check code of the record frame can be CRC-32 technology.
  • the allocation information of the available channel may be indicated by a Scheduled sub-channels field and a Random access sub-channels field, where the Scheduled sub-channels field includes information for allocating a scheduling channel for each scheduling site device, Taking FIG. 2 as an example, the Scheduled STAs field indicates that STA1 and STA2 are scheduling channels, and the Scheduled sub-channels field may indicate that subchannel 1 is assigned to STA1 and subchannel 2 is assigned to STA2; the Random access sub-channels field includes non- Scheduling information of the selectable random contention channel allocated by the station device, for example, indicating, by using a Random access sub-channels field, the remaining subchannels 3-8 as a random contention channel;
  • the allocation information of the available channel may be indicated by a Scheduled sub-channels field and an Available sub-channels field, as shown in Table 2, that is, the control frame is not explicitly indicated.
  • the random contention channel is obtained by removing the scheduling channel by using the available channel, that is, removing the channel indicated by the Scheduled sub-channels field by using the channel indicated in the Available sub-channels field.
  • the access point device receives, by each of the site devices, a frame according to a request sent by the control frame.
  • the target site device first determines, according to the device indication information, whether the own site device is scheduled. a site device, if the target site device is a scheduling site device, determining a corresponding scheduling channel according to the allocation information of the available channel, and sending a request sending frame by using the determined scheduling channel (English: Request To Send, referred to as: RTS);
  • the target site device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, by using the selected idle channel. Or the idle subchannel sends a request to send a frame.
  • the access point device sends a frame according to the received request, and performs resource scheduling on each of the site devices.
  • the scheduling policy may be flexibly adjusted according to the received request sending frame and the idle condition of the subchannel. It is assumed that the request to send the frame received by the access point device is as shown in FIG. 2, because STA4 The access frame sent by the STA5 collides with the requesting frame. Therefore, the access point device cannot receive the corresponding request sending frame normally. Therefore, if the access point device considers that STA4 and STA5 have no data buffer, the subchannel is allocated to other channels.
  • the access point device may indicate that STA1 transmits Data1 on subchannel 1-2 by allowing a transmit frame (English: Clear To Send, CTS for short), and STA2 transmits Data2 on subchannel 2-3, STA3 is Data3 is transmitted on subchannels 5-6, and STA6 transmits Data6 on subchannels 7-8.
  • STA1 transmits Data1 on subchannel 1-2 by allowing a transmit frame (English: Clear To Send, CTS for short)
  • STA2 transmits Data2 on subchannel 2-3
  • STA3 is Data3 is transmitted on subchannels 5-6
  • STA6 transmits Data6 on subchannels 7-8.
  • the CTS specific transmission format (for example, using the entire bandwidth or the subchannel for transmission) is not limited to the present invention, and any other embodiments are also applicable to the embodiments of the present invention.
  • the access point device may send a control frame to the site device, where the control frame includes device indication information and allocation information of available channels, where the device indication information is used to indicate the scheduling site device.
  • the allocation information includes information for allocating a scheduling channel for each of the scheduling station devices and information of a selectable random contention channel allocated for the non-scheduled site device, and the specific channel can be satisfied by dividing the available channel into a scheduling channel and a random contention channel.
  • the access requirements of the service can avoid invalid feedback of a large number of site devices, thereby improving the efficiency of the system.
  • FIG. 5 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention. Embodiments of the invention are described from the perspective of an access point device. Available letters in the embodiments of the present invention The method includes the following: a method for obtaining a site device request in the embodiment of the present invention, as shown in FIG.
  • the access point device selects a scheduling site device among each of the site devices according to a priority of a service of each site device.
  • the access point device selects the scheduling site device according to the priority of the service of the site device, and in other optional embodiments, the scheduling site device may also be selected in other manners, which may be The actual application is adjusted, and the invention is not limited.
  • the non-scheduled site device may include a basic service set, except for the site device except the scheduling site device, and the basic service set includes STA1, STA2, STA3, STA4, and STA5, and STA1 and STA2 are scheduling site devices.
  • STA3, STA4, and STA5 are non-scheduled site devices;
  • the access point device may also control the number of non-scheduled site devices, that is, not all site devices except the scheduling site device can access the channel, and it is assumed that the basic service set still includes STA1.
  • STA2, STA3, STA4, and STA5, STA1 and STA2 are scheduling site devices, and the number of non-scheduled site devices controlled by the access point device is 2, and one of STA3, STA4, and STA5 cannot access the channel, assuming that STA3 and STA4 is a non-scheduled site device. That is to say, STA5 cannot access the channel.
  • STA3 and STA4 is a non-scheduled site device. That is to say, STA5 cannot access the channel.
  • the access point device divides a single channel into multiple subchannels, allocates a scheduling channel to the scheduling station device, and uses a remaining part of the single channel as a random contention channel.
  • the single channel is divided into 8 subchannels
  • STA1-2 is a scheduling station device
  • STA3-5 is a non-scheduled site device
  • the access point device can use subchannel 1 as a scheduling channel.
  • Assigned to STA1 subchannel 2 is assigned to STA2 as a scheduling channel, and the remaining subchannels 3-8 are selected as a random contention channel.
  • the access point device sends a control frame to each of the site devices, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate the scheduling site device, and the allocation
  • the information includes information for assigning a scheduling channel to each of the scheduling station devices. And information of selectable random contention channels allocated for non-scheduled site devices.
  • the device indication information may be represented by a Scheduled STAs field, and is used to indicate a scheduled site device, for example, STA1 and STA2 are scheduling channels, and the Scheduled STAs field may include device identification information of STA1 and STA2;
  • the allocation information of the available channels may be indicated by a Scheduled sub-channels field and a Random access sub-channels field, as shown in Figure 1, where the Scheduled sub-channels field includes allocation for each scheduling site device.
  • the Scheduled STAs field indicates that STA1 and STA2 are scheduling station devices, and the Scheduled sub-channels field may indicate that subchannel 1 is assigned to STA1 and subchannel 2 is assigned to STA2;
  • Random access sub The -channels field includes information of a selectable random contention channel allocated for the non-scheduled site device, for example, indicating the remaining subchannels 3-8 as random contention channels through a Random access sub-channels field;
  • the allocation information of the available channel may be indicated by a Scheduled sub-channels field and an Available sub-channels field, as shown in Table 2, that is, the control frame is not explicitly indicated.
  • the random contention channel is obtained by removing the scheduling channel by using the available channel, that is, removing the channel indicated by the Scheduled sub-channels field by using the channel indicated in the Available sub-channels field.
  • the access point device receives, by each of the site devices, a frame according to a request sent by the control frame.
  • each of the site devices takes a target site device as an example, and the target site device first determines, according to the device indication information, whether the own site device is a scheduling site device, if the target The station device is a scheduling site device, and determining a corresponding scheduling channel according to the allocation information of the available channel, and sending a request sending frame by using the determined scheduling channel;
  • the target site device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, by using the selected idle channel. Or the idle subchannel sends a request to send a frame.
  • the access point device sends a frame according to the received request, to each of the site devices. Perform resource scheduling.
  • the scheduling policy may be flexibly adjusted according to the received request sending frame and the idle condition of the subchannel. It is assumed that the request to send the frame received by the access point device is as shown in FIG. 2, because STA4 The access frame sent by the STA5 collides with the requesting frame. Therefore, the access point device cannot receive the corresponding request sending frame normally. Therefore, if the access point device considers that STA4 and STA5 have no data buffer, the subchannel is allocated to other channels.
  • the station device as shown in FIG. 2, the access point device instructs STA1 to transmit Data1 on subchannel 1-2 by allowing transmission of a frame, STA2 transmits Data2 on subchannel 2-3, and STA3 is on subchannel 5-5. Data3 is transmitted, and STA5 transmits Data5 on subchannels 7-8.
  • the CTS specific transmission format (for example, using the entire bandwidth or the subchannel for transmission) is not limited to the present invention, and any other embodiments are also applicable to the embodiments of the present invention.
  • the access point device may select a scheduling site device among each of the site devices according to the priority of the service of each site device, and Partial subchannels are allocated to the scheduling station device as the scheduling channel, and the remaining subchannels are used as the optional random contention channels to meet the access requirements of high priority services, and can avoid invalid feedback of a large number of site devices, thereby improving The efficiency of the system.
  • FIG. 6 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention. Embodiments of the invention are described from the perspective of an access point device.
  • the available channel in the embodiment of the present invention includes at least two idle channels.
  • the method for obtaining a site device request in the embodiment of the present invention as shown in FIG.
  • the access point device selects a scheduling site device among each of the site devices according to a priority of a service of each site device.
  • the access point device is based on the service of the site device.
  • the first stage selects the scheduling site device.
  • the scheduling site device may also be selected in other manners, and may be adjusted according to actual applications, which is not limited by the present invention.
  • the access point device uses a part of the at least two idle channels as the scheduling channel, and uses the remaining idle channel as the random contention channel.
  • the access point device may use the primary channel as the scheduling channel, and the at least one secondary channel as the random channel.
  • Competitive channel may be used.
  • each of the at least two idle channels may include multiple subchannels, and the access point device may use all of the subchannels of the idle channel as the scheduling channel, All the remaining subchannels of the idle channel are used as the random competition new track;
  • each idle channel is divided into 8 subchannels, and STA11-18 is a scheduling site device.
  • STA21-26 is a non-scheduled site device, and the access point device may allocate 8 subchannels of the primary channel as scheduling channels to STAs 11-18, respectively, and 8 subchannels of the secondary channel as optional random contention channels.
  • the access point device sends a control frame to each of the site devices, where the control frame includes device indication information and allocation information of available channels, where the device indication information is used to indicate the scheduling site device, the allocation
  • the information includes information for assigning scheduling channels to each of the scheduling station devices and information of selectable random contention channels allocated for non-scheduled site devices.
  • the device indication information may be represented by a Scheduled STAs field, and is used to indicate a scheduled site device.
  • the STA 11-18 is a scheduling site device
  • the Scheduled STAs field may include device identification information of the STA 11-18.
  • the allocation information of the available channels may be indicated by a Scheduled sub-channels field and a Random access sub-channels field, as shown in Figure 1, where the Scheduled sub-channels field includes allocation for each scheduling site device.
  • the Scheduled STAs field indicates that STA11-18 is a scheduling site device
  • the Scheduled sub-channels field may indicate that each subchannel of the primary channel is separately allocated to the scheduling site.
  • the Random access sub-channels field includes information of a selectable random contention channel allocated for the non-scheduled site device, for example, indicating, by using a Random access sub-channels field, each subchannel of the channel as a random contention channel;
  • the allocation information of the available channel may be indicated by a Scheduled sub-channels field and an Available sub-channels field, as shown in Table 2, that is, the control frame is not explicitly indicated.
  • the random contention channel is obtained by removing the scheduling channel by using the available channel, that is, removing the channel indicated by the Scheduled sub-channels field by using the channel indicated in the Available sub-channels field.
  • the access point device receives, by each of the site devices, a frame according to a request sent by the control frame.
  • each of the site devices takes a target site device as an example, and the target site device first determines, according to the device indication information, whether the own site device is a scheduling site device, if the target The station device is a scheduling site device, and determining a corresponding scheduling channel according to the allocation information of the available channel, and sending a request sending frame by using the determined scheduling channel;
  • the target site device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, by using the selected idle channel. Or the idle subchannel sends a request to send a frame.
  • the access point device sends a frame according to the received request, and performs resource scheduling on each of the site devices.
  • the scheduling policy may be flexibly adjusted according to the received request sending frame and the idle condition of the subchannel; if the request is received by the access point device, the situation is as shown in FIG.
  • the request transmission frame fed back by the subchannel 3 and the subchannel 6 of the channel indicates that the corresponding station device does not buffer data, and the data of the subchannel 2 and the subchannel 6 of the channel collide, and the access point device cannot receive the corresponding request transmission frame normally. Therefore, the access point device can allocate the subchannel 3 and the subchannel 6 of the primary channel from the subchannel 2 and the subchannel 6 of the channel to other site devices. For specific allocation, refer to FIG. 3, and details are not described herein again.
  • the specific transmission format of the CTS (for example, whether the entire bandwidth or the subchannel is used for transmission)
  • the present invention is not limited to the present invention, and any other embodiment is also applicable to the embodiment of the present invention.
  • the embodiment only lists 14 STAs and 2 idle channels. In actual situations, there may be a larger number of STAs and idle channels, and the scheduling algorithm used by the access point device may be multiple. You can make choices based on actual needs.
  • the access point device may select a scheduling station among each of the site devices according to the priority of the service of each site device. And the device, and using a part of the at least two idle channels as the scheduling channel, and using the remaining idle channel as the random contention channel, to meet the access requirement of the high priority service, The efficiency of the system can be improved by avoiding invalid feedback from a large number of site devices.
  • FIG. 7 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention. Embodiments of the invention are described from the perspective of an access point device.
  • the available channel in the embodiment of the present invention includes at least two idle channels.
  • the method for obtaining a site device request in the embodiment of the present invention as shown in FIG.
  • the access point device selects a scheduling site device among each of the site devices according to a priority of a service of each site device.
  • the access point device selects the scheduling site device according to the priority of the service of the site device, and in other optional embodiments, the scheduling site device may also be selected in other manners, which may be The actual application is adjusted, and the invention is not limited.
  • the access point device uses a part of the subchannels of each of the idle channels as the scheduling channel, and uses a remaining subchannel of each of the idle channels as the random contention channel.
  • STA11-12 and STA21-22 are scheduling station devices.
  • STA13-16 and STA23-26 are non-scheduled site devices, and the access point device can allocate a scheduling channel in any of the following two ways:
  • the access point device allocates subchannel 1 and subchannel 2 of the primary channel to the scheduling site device STA11-12, and similarly, allocates subchannel 1 and subchannel 2 of the channel to the scheduling site device STA21-22, and the remaining subchannels serve as random competition. channel;
  • the access point device allocates subchannel 1 and subchannel 2 of the primary channel to the scheduling site device STA11-12, from the channel Subchannel 3 and subchannel 4 are allocated to the scheduling site equipment STA 21-22, and the remaining subchannels are used as random contention channels.
  • the access point device sends a control frame to each of the site devices, where the control frame includes device indication information and allocation information of available channels, where the device indication information is used to indicate the scheduling site device, where the allocation is performed.
  • the information includes information for assigning scheduling channels to each of the scheduling station devices and information of selectable random contention channels allocated for non-scheduled site devices.
  • the device indication information may be represented by a Scheduled STAs field, and is used to indicate a scheduled site device.
  • STA11-12 and STA21-22 are scheduling site devices, and the scheduled STAs field may include devices of S STA11-12 and STA21-22.
  • the location of the subchannels for scheduling on each idle channel is the same, and the allocation information of the available channels may be represented by an Available sub-channels field and a Position of Scheduled sub-channels field, as shown in Table 3.
  • the Available sub-channels field is used to indicate all idle channels of the available channels
  • the Position of Scheduled sub-channels field is used to indicate the location of the subchannels for scheduling on each of the idle channels, as shown in FIG.
  • the Position of Scheduled sub-channels field indicates that subchannel 1 and subchannel 2 of each idle channel are allocated to the scheduling site device;
  • the location of the subchannels for scheduling on each idle channel is different, and the allocation information of the available channels may be through multiple Available sub-channels fields and a Position of Scheduled sub-channels field.
  • Combined indication as shown in Table 4, for example Available Channel 1, Scheduled sub-channels in channel 1 and Scheduled STAs in channel1 indicate that subchannel 1 of the primary channel is assigned to STA1.
  • the access point device receives, by each of the site devices, a frame according to a request sent by the control frame.
  • each of the site devices takes a target site device as an example, and the target site device first determines, according to the device indication information, whether the own site device is a scheduling site device, if the target The station device is a scheduling site device, and determining a corresponding scheduling channel according to the allocation information of the available channel, and sending a request sending frame by using the determined scheduling channel;
  • the target site device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, by using the selected idle channel. Or the idle subchannel sends a request to send a frame.
  • the access point device sends a frame according to the received request, and performs resource scheduling on each of the site devices.
  • the scheduling policy may be flexibly adjusted according to the received request sending frame and the idle condition of the subchannel. It is assumed that the request to send the frame received by the access point device is as shown in FIG. 4, because STA14 The request sending frame sent by the STA 15 , the STA 25 , and the STA 26 collides. Therefore, the access point device cannot receive the corresponding request sending frame normally. Therefore, the access point device considers that STA 14 , STA 15 , STA 25 , and STA 26 have no data buffer.
  • the sub-channels are allocated to other site devices. For details, refer to FIG. 4, and details are not described herein again.
  • the CTS specific transmission format (for example, using the entire bandwidth or the subchannel for transmission) is not limited to the present invention, and any other embodiments are also applicable to the embodiments of the present invention.
  • the access point device may set each of the sites according to the priority of the service of each site device. Selecting a scheduling site device, and assigning a part of the subchannels of each of the idle channels to the scheduling station device as the scheduling channel, and using the remaining subchannels of each of the idle channels as the random contention channel, that is, Meeting the access requirements of high-priority services can avoid invalid feedback of a large number of site devices, thereby improving the efficiency of the system.
  • FIG. 8 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention. Embodiments of the invention are described from the perspective of a site device.
  • the method for obtaining a site device request in the embodiment of the present invention as shown in FIG. 8 may include:
  • the site device receives a control frame sent by the access point device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, and the allocation information is included in each
  • the scheduling site device allocates information of the scheduling channel and information of the selectable random contention channels allocated for the non-scheduled site devices.
  • the station device acquires a control frame sent by the access point device by intercepting, the information of the selectable random contention channel is used to indicate a selectable random contention channel, and the selectable random contention channel can be removed by using the available channel. Obtained by scheduling the channel.
  • the site device determines, according to the device indication information, whether the device is the scheduling site device.
  • control frame received by the site device is as shown in Table 1, and the site device may determine, according to the Scheduled STAs field, whether the device is the scheduling site device.
  • the scheduled STAs field may include the identifier information of the scheduling site device. If the identifier information includes the identifier information of the device, the site device may determine that the device is the scheduling site device.
  • the site device determines a corresponding scheduling channel according to the allocation information of the available channel, and sends a request to send a frame by using the determined scheduling channel.
  • the site device determines that the device is a scheduling site device according to the Scheduled STAs
  • the access point device may be determined according to the Scheduled sub-channels field.
  • the scheduling channel allocated by the own device, and then determined The scheduling channel sends a request to send a frame.
  • the site device may further detect whether the device has cached data, and if the device has cached data, the access point device passes the determined scheduling channel. Send a request to send a frame.
  • the station device starts to wait when receiving the control frame, and sends a request to send frame until the waiting time is equal to the preset duration.
  • the waiting time is t
  • the station device may start timing when the control frame is received, and when the station device determines the corresponding scheduling channel, the station device may further detect whether the waiting time is reached. t, if not, the station device sends a request to send frame until the waiting time is equal to t.
  • the waiting duration may be a duration specified by the access point device.
  • the site device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, and sends a request to send by using the selected idle channel or idle subchannel. frame.
  • the site device may select at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, and the site device selects The idle channel or idle subchannel transmits a request to transmit a frame.
  • the allocation information of the available channel is indicated by a Scheduled sub-channels field and a Random access sub-channels field, and the site device can pass The random access sub-channels field acquires a selectable random contention channel, thereby selecting at least one idle channel or idle subchannel in the random contention channel;
  • the site device may be available according to Available
  • the channel indicated by the sub-channels field removes an optional random contention channel from the channel indicated by the Scheduled sub-channels field, thereby selecting at least one idle channel or idle subchannel in the random contention channel;
  • the allocated channel of the available channel is represented by an Available sub-channels field and a Position of Scheduled sub-channels field, and the station device can determine the location of the scheduling channel in each idle channel according to the Position of Scheduled sub-channels field, and then remove each The idle channel corresponds to the calling channel of the location, thereby acquiring an optional random contention channel, thereby selecting at least one idle channel or idle subchannel in the random contention channel.
  • the device indication information is further used to indicate a non-scheduled site device, and if the site device is not the scheduling site device, the site device may further determine, by using the device indication information, whether the device is a non-scheduled site. The device, if yes, the site device selects at least one idle channel or idle subchannel in the random contention channel; otherwise, the station device does not send a request to send frame.
  • the site device may receive a control frame sent by the access point device, determine, according to the device indication information in the control frame, whether the device is the scheduling site device, and if yes, determine the scheduling.
  • Channel otherwise, selecting at least one idle channel or idle subchannel in the random contention channel can meet the access requirement of high priority service, and can avoid invalid feedback of a large number of site devices, thereby improving system efficiency .
  • FIG. 9 is a schematic diagram of another method for obtaining a site device request according to an embodiment of the present invention. Embodiments of the invention are described from the perspective of a site device.
  • the method for obtaining a site device request in the embodiment of the present invention as shown in FIG. 9 may include:
  • the site device receives a control frame sent by the access point device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate the scheduling site device and the non-scheduled site device, where the allocation information is Information including a scheduling channel for each of the scheduling station devices and a selectable random contention channel allocated for the non-scheduled site devices is included.
  • the station device acquires a control frame sent by the access point device by intercepting, the information of the selectable random contention channel is used to indicate a selectable random contention channel, and the selectable random contention channel can be removed by using the available channel. Obtained by scheduling the channel.
  • the site device determines, according to the device indication information, whether the device is the tone. Site equipment.
  • control frame received by the site device is as shown in Table 1, and the site device may determine, according to the Scheduled STAs field, whether the device is the scheduling site device.
  • the scheduled STAs field may include the identifier information of the scheduling site device. If the identifier information includes the identifier information of the device, the site device may determine that the device is the scheduling site device.
  • the site device detects whether the device has cached data.
  • the site device determines a corresponding scheduling channel according to the allocated information of the available channel, and sends a request to send a frame by using the determined scheduling channel.
  • control frame received by the site device is still in the example of Table 1. If the site device detects that there is cached data, the site device may determine that the access point device is its own device according to the Scheduled sub-channels field. The allocated scheduling channel is further sent by the determined scheduling channel to send a request to send a frame.
  • the station device starts to wait when receiving the control frame, and sends a request to send frame until the waiting time is equal to the preset duration.
  • the waiting time is t
  • the station device may start timing when the control frame is received, and when the station device determines the corresponding scheduling channel, the station device may further detect whether the waiting time is reached. t, if not, the station device sends a request to send frame until the waiting time is equal to t.
  • the site device determines, according to the device indication information, whether the device is the non-scheduled site device.
  • the format of the control frame may be as shown in Table 5.
  • the device indication information may include a Scheduled STAs field and a Non-Scheduled STAs field, where the Non-Scheduled STAs field is used to indicate a non-scheduled site device, and the site device passes the When the scheduled device determines that the device is not a scheduling site device, the scheduled STAs can determine whether the device is a non-scheduled site device through the Non-Scheduled STAs.
  • the site device selects at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel, and selects the selected device.
  • the idle channel or the idle subchannel transmits a request to send a frame.
  • the allocation information of the available channel is indicated by a Scheduled sub-channels field and a Random access sub-channels field, and the site device can pass The random access sub-channels field acquires a selectable random contention channel, thereby selecting at least one idle channel or idle subchannel in the random contention channel;
  • the site device may be available according to Available
  • the channel indicated by the sub-channels field removes an optional random contention channel from the channel indicated by the Scheduled sub-channels field, thereby selecting at least one idle channel or idle subchannel in the random contention channel;
  • the station device may determine the location of the scheduling channel in each idle channel according to the Position of Scheduled sub-channels field, and then remove the calling channel corresponding to the location of each idle channel, thereby acquiring an optional random contention channel, so that the random At least one idle channel or idle subchannel is selected in the contention channel.
  • the station device starts to wait when receiving the control frame, and sends a request to send frame until the waiting time is equal to the preset duration.
  • the waiting time is t
  • the site is set
  • the device may start timing when the control frame is received.
  • the station device may further detect whether the waiting time reaches t, and if not The site device sends a request to send frame until the waiting time is equal to t.
  • the site device does not have cached data or the site device is not the non-scheduled site device, the site device does not send a request to send a frame.
  • the site device may determine, according to the device indication information in the control frame, whether the device is a scheduling site device, and if yes, determine a scheduling channel, and if not, further determine whether the device is unscheduled.
  • the station device if yes, selects at least one idle channel or idle subchannel in the random contention channel, and the access point device controls data of the site device of the access channel, thereby controlling the probability of data collision, thereby improving The efficiency of the system.
  • FIG. 10 is a schematic structural diagram of an access point device according to an embodiment of the present invention.
  • the access point device 10 in the embodiment of the present invention, as shown in FIG. 10, may include at least a sending module 101, a receiving module 102, and a scheduling module 103, where:
  • the sending module 101 is configured to send, to the site device, a control frame, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, and the allocation information is included in each of the scheduling
  • the site device allocates information of the scheduling channel and information of the selectable random contention channels allocated for the non-scheduled site devices.
  • the available channel may be a continuous channel or a discrete channel, which is not limited in the present invention.
  • the non-scheduled site device may include a basic service set, except for a site device other than the scheduling site device indicated by the device indication information, and the basic service set includes STA1, STA2, STA3, STA4, and STA5.
  • the device indication information indicates that STA1 and STA2 are scheduling site devices, and STA3, STA4, and STA5 are non-scheduled site devices, that is, STA3, STA4, and STA5 can access the channel through random competition;
  • the device indication information is further used to indicate a non-scheduled site device, and the non-scheduled site device is determined by the device indication information, and it is assumed that the basic service set still includes STA1.
  • the device indication information indicates that STA1 and STA2 are scheduling site devices, and STA3 and STA4 are non-scheduled site devices, that is, STA5 cannot access the channel, and by controlling the randomly competitive site device, Effectively control the probability of data collisions, thereby further improving the efficiency of the system.
  • the access point device 10 may further include a selection module 104, configured to select a scheduling site device among each of the site devices according to a priority of a service of each of the site devices.
  • a selection module 104 configured to select a scheduling site device among each of the site devices according to a priority of a service of each of the site devices.
  • the information of the selectable random contention channel is used to indicate a selectable random contention channel, and the selectable random contention channel is obtained by removing the scheduling channel by using the available channel.
  • the access point device 10 may further include:
  • the first channel allocation module 105 is configured to use a part of the subchannels of the idle channel as the scheduling channel, and use a remaining part of the subchannel of the idle channel as the random contention channel.
  • the idle channel is divided into 8 subchannels
  • STA1-2 is a scheduling station device
  • STA3-6 is a non-scheduled site device
  • the first channel allocation module 105 can use subchannel 1 as a scheduling channel.
  • Assigned to STA1 subchannel 2 is assigned to STA2 as a scheduling channel, and the remaining subchannels 3-8 are selected as a random contention channel.
  • the access point device 10 may further include:
  • the second channel allocation module 106 is configured to use a part of the at least two idle channels as the scheduling channel, and use the remaining idle channel as the random contention channel.
  • the second channel allocation module 106 may specifically be used to:
  • the at least one secondary channel is used as the random contention channel.
  • each of the at least two idle channels may include multiple subchannels, and the second channel allocation module 106 may use all of the subchannels of the idle channel as the scheduling channel, All the remaining subchannels of the idle channel are used as the random competition new track;
  • each idle channel is divided into 8 subchannels, and STA11-18 is a scheduling site device.
  • STA21-27 is a non-scheduled site device, and the second channel allocation module 106 can allocate 8 subchannels of the primary channel as scheduling channels to STAs 11-18, respectively, and select 8 subchannels of the channel as optional random contention channels.
  • the access point device 10 may further include:
  • the third channel allocation module 107 is configured to use a part of the subchannels of each of the idle channels as the scheduling channel, and use the remaining subchannels of each of the idle channels as the random contention channel.
  • the third channel allocating module 107 can allocate the scheduling channel in any of the following two manners:
  • the third channel allocation module 107 allocates the subchannel 1 and the subchannel 2 of the primary channel to the scheduling site device STA11-12, again. Subchannel 1 and subchannel 2 of the channel are allocated to the scheduling site device STA21-22, and the remaining subchannels are used as random content channels;
  • the location of the subchannels for scheduling on each of the idle channels is different.
  • the third channel allocation module 107 assigns the subchannel 1 and the subchannel 2 of the primary channel to the scheduling site device STA11-12, from the channel.
  • Subchannel 3 and subchannel 4 are allocated to the scheduling site equipment STA 21-22, and the remaining subchannels are used as random contention channels.
  • the receiving module 102 is configured to receive a frame that is sent by each of the site devices according to the request sent by the control frame.
  • the scheduling module 103 is configured to send a frame according to the received request, and perform resource scheduling on each of the site devices.
  • FIG. 11 is a schematic structural diagram of another access point device according to an embodiment of the present invention.
  • the access point device 11 may include: at least one processor 111, such as a CPU, at least A communication bus 112, a wireless signal transceiving device 113, and a memory 114.
  • the wireless signal transceiving device 113 is configured to transmit and receive signals, such as control frames, allow transmission of frames, etc., and the communication bus 112 is used to implement connection communication between these components.
  • the memory 114 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • a set of program codes is stored in the memory 114, and the processor 111 is configured to call program code stored in the memory 114 for performing the following operations:
  • the wireless signal transceiving device 113 Transmitting, by the wireless signal transceiving device 113, a control frame to the station device, where the control frame includes device indication information and allocation information of an available channel, the device indication information is used to indicate a scheduling site device, and the allocation information is included for each of the scheduling
  • the site device allocates information of the scheduling channel and information of the selectable random contention channel allocated for the non-scheduled site device;
  • the processor 111 may also perform the following operations before the control signal is sent to the station device by the wireless signal transceiver 113:
  • a part of the subchannels of the idle channel is used as the scheduling channel, and a remaining part of the subchannel of the idle channel is used as the random contention channel.
  • the processor 111 sends the control frame to the station device by using the wireless signal transceiver 113, the following operations may also be performed:
  • a part of the at least two idle channels is used as the scheduling channel, and the remaining ones are used as the random contention channel.
  • the processor 111 uses a part of the at least two idle channels as the scheduling channel, and uses the remaining idle channel as The random contention channel may specifically be:
  • the at least one secondary channel is used as the random contention channel.
  • the processor 111 sends the control frame to the station device by using the wireless signal transceiver 113, the following operations may also be performed:
  • a part of the subchannels of each of the idle channels is used as the scheduling channel, and the remaining subchannels of each of the idle channels are used as the random contention channel.
  • the device indication information is further used to indicate a non-scheduled site device.
  • the processor 111 sends the control frame to the station device by using the wireless signal transceiver 113, the following operations may also be performed:
  • a scheduling site device is selected among each of the site devices according to a priority of a service of each of the site devices.
  • the information of the selectable random contention channel is used to indicate a selectable random contention channel, and the selectable random contention channel is obtained by removing the scheduling channel by using the available channel.
  • FIG. 12 is a schematic structural diagram of a site device according to an embodiment of the present invention.
  • the site device 12 in the embodiment of the present invention may include at least a receiving module 121, a determining module 122, a processing module 123, and a sending module 124, where:
  • the receiving module 121 is configured to receive a control frame sent by the access point device, where the control frame includes device indication information and allocation information of an available channel, where the device indication information is used to indicate a scheduling site device, and the allocation information is included in each
  • the scheduling site device allocates information of the scheduling channel and information of the selectable random contention channel allocated for the non-scheduled site device.
  • the determining module 122 is configured to determine, according to the device indication information, whether the site device is the scheduling site device.
  • the processing module 123 is configured to determine, according to the allocation information of the available channel, a corresponding scheduling channel, if the determining module 122 determines that the site device is the scheduling site device.
  • the sending module 124 is configured to send a request sending frame by using the determined scheduling channel, so that the access point device sends a frame according to the request to perform resource scheduling for the site device.
  • the processing module 123 is further configured to:
  • the determining module 122 determines that the station device is not the scheduling station device, selecting at least one idle channel or idle subchannel in the random contention channel according to the allocation information of the available channel.
  • the sending module 124 is further configured to:
  • the request transmission frame is transmitted through the selected idle channel or idle subchannel.
  • site device 12 may further include:
  • the detecting module 125 is configured to detect whether the site device has a data cache when the determining device 122 determines that the site device is the scheduling site device, and if the data cache is detected, triggering the processing module 123 to The allocation information of the available channels determines a corresponding scheduling channel.
  • the device indication information is further used to indicate a non-scheduled site device, and if the site device is not the scheduling site device, the determining module 122 is further configured to:
  • the sending module 124 is further configured to:
  • the request sending frame is sent through the determined scheduling channel.
  • FIG. 13 is a schematic structural diagram of another site device according to an embodiment of the present invention.
  • the site device 13 may include at least one processor 131, such as a CPU, at least one communication bus 132, a wireless signal transceiver 133, and a memory 134.
  • the wireless signal transceiving device 133 is configured to transmit and receive signals, such as control frames, request transmission frames, and the like; the communication bus 132 is used to implement connection communication between these components.
  • the memory 134 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • a set of program codes is stored in the memory 134, and the processor 131 is configured to call the program code stored in the memory 134 for performing the following operations:
  • the scheduling site device allocates information of a scheduling channel and information of a selectable random contention channel allocated for the non-scheduled site device;
  • the site device determines a corresponding scheduling channel according to the allocation information of the available channel, and sends a request to send a frame by using the determined scheduling channel;
  • the site device is the scheduling site device, before the processor 131 determines the corresponding scheduling channel according to the allocation information of the available channel, the following operations may also be performed:
  • the device indication information is further used to indicate a non-scheduled site device, and if the site device is not the scheduling site device, the processor 131 selects the random contention channel according to the allocation information of the available channel. Before at least one idle channel or idle subchannel, you can also perform the following operations:
  • processor 131 can also perform the following operations:
  • the request sends a frame.
  • FIG. 14 is a schematic structural diagram of a system for obtaining a request for a site device according to an embodiment of the present invention.
  • the system for obtaining a site device request according to an embodiment of the present invention includes an access point device and at least one site device, where N in FIG. 14 represents the number of site devices, and N is an integer.
  • N in FIG. 14 represents the number of site devices, and N is an integer.
  • For the access point device refer to the corresponding embodiment in FIG. 10 and FIG. 11.
  • the site device refer to the corresponding embodiment in FIG. 12 and FIG. 13 , and details are not described herein again.
  • the embodiment of the present invention further provides a computer storage medium.
  • the computer storage medium stores a program, and the program includes some or all of the steps in the method described in connection with the embodiment of the present invention.
  • the embodiment of the present invention further provides a computer storage medium storing a program, the program including some or all of the steps in the method described in connection with FIG. 8 and FIG. 9 in the embodiment of the present invention.
  • the modules in the apparatus of the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device.
  • computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明实施例公开了一种获取站点设备请求的方法、接入点设备及站点设备，其中一种方法包括：接入点设备向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竟争信道的信息；所述接入点设备接收各个所述站点设备根据所述控制帧发送的请求发送帧；所述接入点设备根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。釆用本发明，既可以满足特定业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高系统的效率。

Description

一种获取站点设备请求的方法、接入点设备及站点设备 技术领域
本发明涉及无线局域网技术领域，尤其涉及一种获取站点设备请求的方法、接入点设备及站点设备。
背景技术
无线局域网(英文：Wireless Local Access Network，简称：WLAN)中的基站也被称为接入点设备(英文：Access Point，简称：AP)，目前WLAN系统中通常采用正交频分复用技术(英文：Orthogonal Frequency Division Multiple，简称：OFDM)传输。但为了提高系统的效率，正在考虑将上行正交频分复用接入技术OFDMA(英文：Orthogonal Frequency Division MultipleAccess，简称：OFDMA)和上行多用户MIMO(Multiple-Input Multiple-Output，多输入多输出)等上行多用户技术纳入标准中。而在上行多用户技术中一个需要解决的问题是，AP如何获取站点设备(英文：Station，简称：STA)的上行数据请求。
现有多种技术用于获取STA的上行数据请求。
第一种，通过随机竞争方式以获取上行数据请求，随机竞争方式由于不需要中心站点设备对网络进行控制，所以结构简单，组网灵活，被广泛的应用于分布式方式的网络中，但当系统负载很大，竞争增多时，冲突避免比较困难，无法满足特定业务的接入需求；
第二种，通过轮询方式以获取上行数据请求，即通过AP来指定多个STA在指定的子信道上通过OFDMA的方式发送上行数据请求，这种由于不知道哪些STA有缓存数据而盲目地进行轮询，就会由于AP轮询大量没有上行数据的STA而降低系统效率。
发明内容
本发明实施例提供了一种获取站点设备请求的方法、接入点设备及站点设 备，既可以满足特定业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高系统的效率。
本发明实施例第一方面提供了一种获取站点设备请求的方法，包括：
接入点设备向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
所述接入点设备接收各个所述站点设备根据所述控制帧发送的请求发送帧；
所述接入点设备根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
在第一方面的第一种可能实现方式中，若所述可用信道包括一个空闲信道，所述接入点设备向站点设备发送控制帧之前，所述发送还包括：
所述接入点设备将所述空闲信道的一部分子信道作为所述调度信道，将所述空闲信道的剩余部分子信道作为所述随机竞争信道。
在第一方面的第二种可能实现方式中，若所述可用信道包括至少两个空闲信道，所述接入点设备向站点设备发送控制帧之前，所述方法还包括：
所述接入点设备将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道。
结合第一方面的第二种可能实现方式，在第三种可能实现方式中，若所述可用信道包括一个预设的主信道和至少一个从信道，所述接入点设备将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道包括：
所述接入点设备将所述主信道作为所述调度信道，将所述至少一个从信道作为所述随机竞争信道。
在第一方面的第四种可能实现方式中，若所述可用信道包括至少两个空闲信道，所述接入点设备向站点设备发送控制帧之前，所述方法还包括：
所述接入点设备将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道。
结合第一方面或第一方面的第一种至第四种中任一种可能实现方式，在第五种可能实现方式中，所述设备指示信息还用于指示非调度站点设备。
结合第一方面或第一方面的第一种至第四种中任一种可能实现方式，在第六种可能实现方式中，所述接入点设备向站点设备发送控制帧之前，所述方法还包括：
所述接入点设备根据各个所述站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
结合第一方面或第一方面的第一种至第六种中任一种可能实现方式，在第七种可能实现方式中，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得。
本发明实施例第二方面提供一种获取站点设备请求的方法，包括：
站点设备接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
所述站点设备根据所述设备指示信息，判断自身设备是否为所述调度站点设备；
若是，所述站点设备根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
若否，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，并通过选择的所述空闲信道或空闲子信道发送请求发送帧。
在第二方面的第一种可能实现方式中，若所述站点设备为所述调度站点设备，所述站点设备根据所述可用信道的分配信息确定对应的调度信道之前，所 述方法还包括：
所述站点设备确定自身设备存在缓存数据。
在第二方面的第二种可能实现方式中，所述设备指示信息还用于指示非调度站点设备，若所述站点设备不是所述调度站点设备，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道之前，所述方法还包括：
所述站点设备根据所述设备指示信息，确定自身设备为所述非调度站点设备。
结合第二方面或第二方面的第一种或第二种中任一种可能实现方式，在第三种可能实现方式中，所述方法还包括：
所述站点设备从接收到所述控制帧开始等待，直到等待时长等于预设时长时，才执行所述通过确定的所述调度信道发送请求发送帧的步骤。
本发明实施例第三方面提供了一种接入点设备，包括：
发送模块，用于向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
接收模块，用于接收各个所述站点设备根据所述控制帧发送的请求发送帧；
调度模块，用于根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
在第三方面的第一种可能实现方式中，若所述可用信道包括一个空闲信道，所述设备还包括：
第一信道分配模块，用于将所述空闲信道的一部分子信道作为所述调度信道，将所述空闲信道的剩余部分子信道作为所述随机竞争信道。
在第三方面的第二种可能实现方式中，若所述可用信道包括至少两个空闲信道，所述设备还包括：
第二信道分配模块，用于将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道。
结合第三方面的第二种可能实现方式，在第三种可能实现方式中，若所述可用信道包括一个预设的主信道和至少一个从信道，所述第二信道分配模块具体用于：
将所述主信道作为所述调度信道，将所述至少一个从信道作为所述随机竞争信道。
在第三方面的第四种可能实现方式中，若所述可用信道包括至少两个空闲信道，所述设备还包括：
第三信道分配模块，用于将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道。
结合第三方面或第三方面的第一种至第四种中任一种可能实现方式，在第五种可能实现方式中，所述设备指示信息还用于指示非调度站点设备。
结合第三方面或第三方面的第一种至第四种中任一种可能实现方式，在第六种可能实现方式中，所述设备还包括：
选择模块，用于根据各个所述站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
结合第三方面或第三方面的第一种至第六种中任一种可能实现方式，在第七种可能实现方式中，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得。
本发明实施例第四方面提供一种获取站点设备请求的方法，包括：
接收模块，用于接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
判断模块，用于根据所述设备指示信息，判断所述站点设备是否为所述调 度站点设备；
处理模块，用于若所述判断模块判定所述站点设备为所述调度站点设备，根据所述可用信道的分配信息确定对应的调度信道；
发送模块，用于通过确定的所述调度信道发送请求发送帧，以使所述接入点设备根据所述请求发送帧为所述站点设备进行资源调度；
所述处理模块还用于：
若所述判断模块判定所述站点设备不是所述调度站点设备，则根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道；
所述发送模块还用于：
通过选择的所述空闲信道或空闲子信道发送请求发送帧。
在第四方面的第一种可能实现方式中，所述设备还包括：
检测模块，用于若所述判断模块判定所述站点设备为所述调度站点设备时，检测所述站点设备是否存在数据缓存，若检测到存在数据缓存，则触发所述处理模块根据所述可用信道的分配信息确定对应的调度信道。
在第四方面的第二种可能实现方式中，所述设备指示信息还用于指示非调度站点设备，若所述站点设备不是所述调度站点设备，所述判断模块还用于：
根据所述设备指示信息，判断所述站点设备是否为所述非调度站点设备，若判定所述站点设备为所述非调度站点设备，则触发所述处理模块在所述随机竞争信道中选择至少一个空闲信道或空闲子信道。
结合第四方面或第四方面的第一种或第二种中任一种可能实现方式，在第三种可能实现方式中，所述发送模块还用于：
从所述接收模块接收到所述控制帧开始等待，直到等待时长等于预设时长时，才通过确定的所述调度信道发送请求发送帧。
本发明实施例第五方面还提供了一种接入点设备，其特征在于，所述接入点设备包括无线信号收发装置、存储器以及处理器，其中，存储器中存储一组程序代码，且处理器用于调用存储器中存储的程序代码，用于执行以下操作：
向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
接收各个所述站点设备根据所述控制帧发送的请求发送帧；
根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
本发明实施例第六方面还一种站点设备，其特征在于，所述站点设备包括无线信号收发装置、存储器以及处理器，其中，存储器中存储一组程序代码，且处理器用于调用存储器中存储的程序代码，用于执行以下操作：
站点设备接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
所述站点设备根据所述设备指示信息，判断自身设备是否为所述调度站点设备；
若是，所述站点设备根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
若否，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，并通过选择的所述空闲信道或空闲子信道发送请求发送帧。
本发明实施例第七方面还提供了一种计算机存储介质，其特征在于，所述计算机存储介质存储有程序，所述程序执行时包括第一方面提供的获取站点设备请求的方法的部分或全部步骤。
本发明实施例第八方面还提供了一种计算机存储介质，其特征在于，所述计算机存储介质存储有程序，所述程序执行时包括第二方面提供的获取站点设备请求的方法的部分或全部步骤。
本发明实施例第九方面还提供一种获取站点设备请求的系统，所述系统包 括接入点设备和至少一个站点设备，其中：
所述接入点设备如第三方面，或者第三方面的第一种可能实现方式，或者第三方面的第二种可能实现方式，或者第三方面的第三种可能实现方式，或者第三方面的第四种可能实现方式，或者第三方面的第五种可能实现方式，或者第三方面的第六种可能实现方式，或者第三方面的第七种可能实现方式中的接入点设备；
所述站点设备如第四方面，或者第四方面的第一种可能实现方式，或者第四方面的第二种可能实现方式，或者第四方面的第三种可能实现方式中的站点设备。
由上可见，本发明实施例通过向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息，接收各个所述站点设备根据所述控制帧发送的请求发送帧，既可以满足特定业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高了系统的效率。
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是本发明实施例提供的一种获取站点设备请求的方法示意图；
图2是本发明实施例提供的一种混合式单信道接入方式的示意图；
图3是本发明实施例提供的一种混合式多信道接入方式的示意图；
图4是本发明实施例提供的另一种混合式多信道接入方式的示意图；
图5是本发明实施例提供的另一种获取站点设备请求的方法示意图；
图6是本发明实施例提供的又一种获取站点设备请求的方法示意图；
图7是本发明实施例提供的又一种获取站点设备请求的方法示意图；
图8是本发明实施例提供的又一种获取站点设备请求的方法示意图；
图9是本发明实施例提供的又一种获取站点设备请求的方法示意图；
图10是本发明实施例提供的一种接入点设备的结构示意图；
图11是本发明实施例提供的另一种接入点设备的结构示意图；
图12是本发明实施例提供的一种站点设备的结构示意图；
图13是本发明实施例提供的另一种站点设备的结构示意图；
图14是本发明实施例提供的一种获取站点设备请求的系统结构示意图。
具体实施方式
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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例可以应用于无线局域网，所述无线局域网可以为包含接入点的基本服务集(简称：BSS，英文：Basic Service Set)。应理解地，在WIFI(英文：Wireless Fidelity，中文：无线保真)系统的基础网络结构下，网络中可以包括多个基本服务集，每个基本服务集可以包含一个接入点设备(英文：Access Point，简称AP)和多个关联于该AP的站点设备(英文：Station，简称STA)。
所述AP也称之为无线访问接入点或热点等。AP是移动用户进入有线网络的接入点，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，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。
AP主要采用的标准为IEEE(英文：Institute of Electrical and Electronics  Engineers，中文：电气和电子工程师协会)802.11系列。具体地，AP可以是带有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(英文：Wireless Local Area Network，中文：无线局域网)制式的设备。
所述STA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。
目前WLAN使用的20MHz、40MHz、80MHz、160MHz(80+80MHz)其中的一种带宽，但由于本发明与单个信道或者多个信道的实际带宽没有必然关系，因此对于其它的带宽也可用于本发明的实施方式。本发明中以带宽为20MHZ的信道作为单信道、多于20MHz整数倍信道作为多信道为例阐述。
下面结合具体实施例，进一步阐明本发明，应理解为这些实施例仅用于说明本发明而不用于限制本发明的范围，在阅读了本发明之后，本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定的范围。
请参阅图1，图1是本发明实施例提供的一种获取站点设备请求的方法示意图。本发明实施例是从接入点设备角度描述的。如图1所示本发明实施例中的获取站点设备请求的方法可以包括：
S11，接入点设备向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息。
所述可用信道可以是连续的信道，也可以是离散的信道，本发明不做限定。
可选地，所述非调度站点设备可以包括基本服务集中，除去所述设备指示 信息指示的调度站点设备以外的站点设备，假设，基本服务集中包括STA1、STA2、STA3、STA4以及STA5，所述设备指示信息指示STA1和STA2为调度站点设备，则STA3、STA4以及STA5则为非调度站点设备，也就是说，STA3、STA4以及STA5可以通过随机竞争接入信道；
进一步地，所述设备指示信息还用于指示非调度站点设备，则所述非调度站点设备通过所述设备指示信息确定，假设，基本服务集中仍包括STA1、STA2、STA3、STA4以及STA5，所述设备指示信息指示STA1和STA2为调度站点设备，STA3和STA4为非调度站点设备，也就是说，STA5不能接入信道，通过控制随机竞争的站点设备，可以有效控制数据碰撞的概率，从而，进一步提高系统的效率。
可选地，所述接入点设备可以根据各个站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备，再为各个所述调度站点设备分配对应的调度信道，所述随机竞争信道为所述可用信道除去所述调度信道部分，通过站点设备的业务的优先级选择调度站点设备，确保了高优先级业务的接入需求。
如果，所述可用信道包括一个空闲信道，即一个20MHz的空闲信道，所述接入点设备可以将所述空闲信道的一部分子信道作为调度信道，将所述空闲信道的剩余部分子信道作为所述随机竞争信道，其中，所述子信道的划分可以是标准定义的，也可以是所述接入点设备划分的，本发明不做限定；
如图2所示，假设，所述空闲信道被划分为8个子信道，STA1-2为调度站点设备，STA3-6为非调度站点设备，所述接入点设备可以将子信道1作为调度信道分配给STA1，将子信道2作为调度信道分配给STA2，剩余的子信道3-8作为可选择的随机竞争信道。
如果，所述可用信道包括至少两个空闲信道，所述接入点设备可以将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道；
进一步地，若所述可用信道包括一个预设的主信道和至少一个从信道，所述接入点设备可以将所述主信道作为所述调度信道，将所述至少一个从信道作 为所述随机竞争信道；
再进一步地，所述至少两个空闲信道中的每个所述空闲信道可以包括多个子信道，所述接入点设备可以将其中一部分所述空闲信道的全部子信道作为所述调度信道，将剩余的所述空闲信道的全部子信道作为所述随机竞争新道；
以两个空闲信道为例，假设，其中一个空闲信道为主信道，另一个空闲信道为从信道，如图3所示，每个空闲信道被划分为8个子信道，STA11-18为调度站点设备，STA21-27为非调度站点设备，所述接入点设备可以将主信道的8个子信道作为调度信道分别分配给STA11-18，将从信道的8个子信道作为可选择的随机竞争信道。
如果，所述可用信道包括至少两个空闲信道，所述接入点设备还可以将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道；
仍以两个空闲信道为例，假设，其中一个空闲信道为主信道，另一个空闲信道为从信道，且每个空闲信道被划分为8个子信道，STA11-12、STA21-22为调度站点设备，STA13-16、STA23-26为非调度站点设备，所述接入点设备可以以以下两种方式中的任一种方式分配调度信道：
第一，每个空闲信道上用于调度的子信道的位置相同，如图4所示，所述接入点设备将主信道的子信道1和子信道2分配给调度站点设备STA11-12，同样，将从信道的子信道1和子信道2分配给调度站点设备STA21-22，剩余子信道作为随机竞争信道；
第二，每个空闲信道上用于调度的子信道的位置不相同，例如，所述接入点设备将主信道的子信道1和子信道2分配给调度站点设备STA11-12，将从信道的子信道3和子信道4分配给调度站点设备STA21-22，剩余子信道作为随机竞争信道。
所述控制帧可以如表1所示，其中，所述设备指示信息可以通过Scheduled STAs字段表示，用于指示调度的站点设备，例如，STA1和STA2为调度信道，Scheduled STAs字段中可以包括STA1和STA2的设备标识信息；
所述Frame control用于指示帧的类型，如预留帧类型等；RA是无线媒介上的一个地址，也就是接收所述控制帧的目标地址，即各个站点设备的地址；TA是发送所述控制帧的地址，也就是所述接入点设备的地址；FCS是错误检查码，记录帧的检查码，可以采用CRC-32技术。
一种可选的实施方式，所述可用信道的分配信息可以通过Scheduled sub-channels字段和Random access sub-channels字段指示，其中，Scheduled sub-channels字段包括为各个调度站点设备分配调度信道的信息，以图2为例，Scheduled STAs字段指示STA1和STA2为调度信道，Scheduled sub-channels字段中可以指示将子信道1分配给STA1，将子信道2分配给STA2；Random access sub-channels字段包括为非调度站点设备分配的可选择的随机竞争信道的信息，例如，通过Random access sub-channels字段指示将剩余的子信道3-8作为随机竞争信道；
表1
Figure PCTCN2014094221-appb-000001
另一种可选的实施方式，所述可用信道的分配信息可以通过Scheduled sub-channels字段和Available sub-channels字段指示，如表2所示，也就是说，所述控制帧中没有明确指示出随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得，即通过Available sub-channels字段中指示的信道除去Scheduled sub-channels字段指示的信道获得。
表2
Figure PCTCN2014094221-appb-000002
S12，所述接入点设备接收各个所述站点设备根据所述控制帧发送的请求发送帧。
具体地，各个所述站点设备接收到所述控制帧之后，以目标站点设备为例，所述目标站点设备首先根据所述设备指示信息，判断自身站点设备是否为调度 站点设备，若所述目标站点设备为调度站点设备，则根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧(英文：Request To Send，简称：RTS)；
若所述目标站点设备不是调度站点设备，所述目标站点设备则根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，通过选择的所述空闲信道或空闲子信道发送请求发送帧。
S13，所述接入点设备根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
具体地，所述调度策略可以根据接收的所述请求发送帧的情况以及子信道的空闲情况灵活调整；假设，所述接入点设备接收的请求发送帧的情况如图2所示，由于STA4和STA5发送的请求发送帧发生了碰撞，所以，所述接入点设备无法正常接收对应的请求发送帧，因此，接入点设备认为STA4和STA5没有数据缓存，则将该子信道分配给其他站点设备，所述接入点设备可以通过允许发送帧(英文：Clear To Send，简称：CTS)指示STA1在子信道1-2上传输Data1，STA2在子信道2-3上传输Data2，STA3在子信道5-6上传输Data3，STA6在子信道7-8上传输Data6。
需要说明的是，CTS具体发送格式(例如采用整个带宽还是子信道进行发送)不属于本发明不做限定，任何其它实施方式也都适用与本发明实施例。
在图2所示的实施例中，接入点设备可以向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息，通过将可用信道划分为调度信道和随机竞争信道，既可以满足特定业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高了系统的效率。
请参阅图5，图5是本发明实施例提供的另一种获取站点设备请求的方法示意图。本发明实施例是从接入点设备角度描述的。本发明实施例中的可用信 道包括一个空闲信道，即20MHZ的空闲信道；如图5所示本发明实施例中的获取站点设备请求的方法可以包括：
S51，接入点设备根据各个站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
需要说明的是，本发明实施例中，接入点设备是根据站点设备的业务的优先级选择调度站点设备，在其他可选实施例中，还可以以其他的方式选择调度站点设备，可以根据实际应用作调整，本发明不做限定。
可选地，所述非调度站点设备可以包括基本服务集中，除去所述调度站点设备以外的站点设备，假设，基本服务集中包括STA1、STA2、STA3、STA4以及STA5，STA1和STA2为调度站点设备，则STA3、STA4以及STA5则为非调度站点设备；
进一步地，所述接入点设备还可以控制非调度站点设备的数量，也就是说，并不是所有的除调度站点设备以外的站点设备都可以接入信道，假设，基本服务集中仍包括STA1、STA2、STA3、STA4以及STA5，STA1和STA2为调度站点设备，接入点设备控制非调度站点设备的数量为2，则STA3、STA4和STA5中有一个站点设备不能接入信道，假设，STA3和STA4为非调度站点设备，也就是说，STA5不能接入信道，通过控制随机竞争的设备，可以有效控制数据碰撞的概率，从而，进一步提高系统的效率。
S52，所述接入点设备将单信道划分为多个子信道，为所述调度站点设备分配调度信道，并将所述单信道的剩余部分子信道作为随机竞争信道。
如图2所示，假设，所述单信道被划分为8个子信道，STA1-2为调度站点设备，STA3-5为非调度站点设备，所述接入点设备可以将子信道1作为调度信道分配给STA1，将子信道2作为调度信道分配给STA2，剩余的子信道3-8作为可选择的随机竞争信道。
S53，所述接入点设备向各个所述站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示所述调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以 及为非调度站点设备分配的可选择的随机竞争信道的信息。
所述设备指示信息可以通过Scheduled STAs字段表示，用于指示调度的站点设备，例如，STA1和STA2为调度信道，Scheduled STAs字段中可以包括STA1和STA2的设备标识信息；
一种可选的实施方式，所述可用信道的分配信息可以通过Scheduled sub-channels字段和Random access sub-channels字段指示，图表1所示，其中，Scheduled sub-channels字段包括为各个调度站点设备分配调度信道的信息，以图2为例，Scheduled STAs字段指示STA1和STA2为调度站点设备，Scheduled sub-channels字段中可以指示将子信道1分配给STA1，将子信道2分配给STA2；Random access sub-channels字段包括为非调度站点设备分配的可选择的随机竞争信道的信息，例如，通过Random access sub-channels字段指示将剩余的子信道3-8作为随机竞争信道；
另一种可选的实施方式，所述可用信道的分配信息可以通过Scheduled sub-channels字段和Available sub-channels字段指示，如表2所示，也就是说，所述控制帧中没有明确指示出随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得，即通过Available sub-channels字段中指示的信道除去Scheduled sub-channels字段指示的信道获得。
S54，所述接入点设备接收各个所述站点设备根据所述控制帧发送的请求发送帧。
具体地，各个所述站点设备接收到所述控制帧之后，以目标站点设备为例，所述目标站点设备首先根据所述设备指示信息，判断自身站点设备是否为调度站点设备，若所述目标站点设备为调度站点设备，则根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
若所述目标站点设备不是调度站点设备，所述目标站点设备则根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，通过选择的所述空闲信道或空闲子信道发送请求发送帧。
S55，所述接入点设备根据接收的所述请求发送帧，对各个所述站点设备 进行资源调度。
具体地，所述调度策略可以根据接收的所述请求发送帧的情况以及子信道的空闲情况灵活调整；假设，所述接入点设备接收的请求发送帧的情况如图2所示，由于STA4和STA5发送的请求发送帧发生了碰撞，所以，所述接入点设备无法正常接收对应的请求发送帧，因此，接入点设备认为STA4和STA5没有数据缓存，则将该子信道分配给其他站点设备，如图2所示，所述接入点设备通过允许发送帧指示STA1在子信道1-2上传输Data1，STA2在子信道2-3上传输Data2，STA3在子信道5-5上传输Data3，STA5在子信道7-8上传输Data5。
需要说明的是，CTS具体发送格式(例如采用整个带宽还是子信道进行发送)不属于本发明不做限定，任何其它实施方式也都适用与本发明实施例。
可理解的，本实施例只列出了5个STA、8个子信道的情况，实际情况中还可能有更多数目的STA与子信道，接入点设备采用的调度算法可以有多种，可以根据实际需求做选择。
在图5所示的实施例中，针对于获取的可用信道为单信道的情况，接入点设备可以根据各个站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备，并为部分子信道分配给调度站点设备作为调度信道，剩余部分子信道作为可选择的随机竞争信道，即可以满足高优先级的业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高了系统的效率。
请参阅图6，图6是本发明实施例提供的又一种获取站点设备请求的方法示意图。本发明实施例是从接入点设备角度描述的。本发明实施例中的可用信道包括至少两个空闲信道；如图6所示本发明实施例中的获取站点设备请求的方法可以包括：
S61，接入点设备根据各个站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
需要说明的是，本发明实施例中，接入点设备是根据站点设备的业务的优 先级选择调度站点设备，在其他可选实施例中，还可以以其他的方式选择调度站点设备，可以根据实际应用作调整，本发明不做限定。
S62，所述接入点设备将至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道。
进一步地，若所述可用信道包括一个预设的主信道和至少一个从信道，所述接入点设备可以将所述主信道作为所述调度信道，将所述至少一个从信道作为所述随机竞争信道。
再进一步地，所述至少两个空闲信道中的每个所述空闲信道可以包括多个子信道，所述接入点设备可以将其中一部分所述空闲信道的全部子信道作为所述调度信道，将剩余的所述空闲信道的全部子信道作为所述随机竞争新道；
以两个空闲信道为例，假设，其中一个空闲信道为主信道，另一个空闲信道为从信道，如图3所示，每个空闲信道被划分为8个子信道，STA11-18为调度站点设备，STA21-26为非调度站点设备，所述接入点设备可以将主信道的8个子信道作为调度信道分别分配给STA11-18，将从信道的8个子信道作为可选择的随机竞争信道。
S63，所述接入点设备向各个所述站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示所述调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息。
所述设备指示信息可以通过Scheduled STAs字段表示，用于指示调度的站点设备，例如，STA11-18为调度站点设备，Scheduled STAs字段中可以包括STA11-18的设备标识信息；
一种可选的实施方式，所述可用信道的分配信息可以通过Scheduled sub-channels字段和Random access sub-channels字段指示，图表1所示，其中，Scheduled sub-channels字段包括为各个调度站点设备分配调度信道的信息，以图3为例，Scheduled STAs字段指示STA11-18为调度站点设备，Scheduled sub-channels字段中可以指示将主信道的各个子信道分别分配给调度站点设 备；Random access sub-channels字段包括为非调度站点设备分配的可选择的随机竞争信道的信息，例如，通过Random access sub-channels字段指示将从信道的各个子信道作为随机竞争信道；
另一种可选的实施方式，所述可用信道的分配信息可以通过Scheduled sub-channels字段和Available sub-channels字段指示，如表2所示，也就是说，所述控制帧中没有明确指示出随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得，即通过Available sub-channels字段中指示的信道除去Scheduled sub-channels字段指示的信道获得。
S64，所述接入点设备接收各个所述站点设备根据所述控制帧发送的请求发送帧。
具体地，各个所述站点设备接收到所述控制帧之后，以目标站点设备为例，所述目标站点设备首先根据所述设备指示信息，判断自身站点设备是否为调度站点设备，若所述目标站点设备为调度站点设备，则根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
若所述目标站点设备不是调度站点设备，所述目标站点设备则根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，通过选择的所述空闲信道或空闲子信道发送请求发送帧。
S65，所述接入点设备根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
具体地，所述调度策略可以根据接收的所述请求发送帧的情况以及子信道的空闲情况灵活调整；假设，所述接入点设备接收的请求发送帧的情况如图3所示，由于主信道的子信道3和子信道6反馈的请求发送帧指示对应的站点设备没有缓存数据，并且，从信道的子信道2和子信道6的数据发生碰撞，接入点设备无法正常接收对应的请求发送帧，因此，接入点设备可以将主信道的子信道3和子信道6，从信道的子信道2和子信道6分配给其他站点设备，具体分配可以参阅图3，在此不再赘述。
需要说明的是，CTS具体发送格式(例如采用整个带宽还是子信道进行发 送)不属于本发明不做限定，任何其它实施方式也都适用与本发明实施例。
可理解的，本实施例只列出了14个STA、2个空闲信道的情况，实际情况中还可能有更多数目的STA与空闲信道，接入点设备采用的调度算法可以有多种，可以根据实际需求做选择。
在图6所示的实施例中，针对于获取的可用信道包括至少两个空闲信道的情况，接入点设备可以根据各个站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备，并将至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道，即可以满足高优先级的业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高了系统的效率。
请参阅图7，图7是本发明实施例提供的又一种获取站点设备请求的方法示意图。本发明实施例是从接入点设备角度描述的。本发明实施例中的可用信道包括至少两个空闲信道；如图7所示本发明实施例中的获取站点设备请求的方法可以包括：
S71，接入点设备根据各个站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
需要说明的是，本发明实施例中，接入点设备是根据站点设备的业务的优先级选择调度站点设备，在其他可选实施例中，还可以以其他的方式选择调度站点设备，可以根据实际应用作调整，本发明不做限定。
S72，所述接入点设备将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道。
以两个空闲信道为例，假设，其中一个空闲信道为主信道，另一个空闲信道为从信道，且每个空闲信道被划分为7个子信道，STA11-12、STA21-22为调度站点设备，STA13-16、STA23-26为非调度站点设备，所述接入点设备可以以以下两种方式中的任一种方式分配调度信道：
第一，每个空闲信道上用于调度的子信道的位置相同，如图4所示，所述 接入点设备将主信道的子信道1和子信道2分配给调度站点设备STA11-12，同样，将从信道的子信道1和子信道2分配给调度站点设备STA21-22，剩余子信道作为随机竞争信道；
第二，每个空闲信道上用于调度的子信道的位置不相同，例如，所述接入点设备将主信道的子信道1和子信道2分配给调度站点设备STA11-12，将从信道的子信道3和子信道4分配给调度站点设备STA21-22，剩余子信道作为随机竞争信道。
S73，所述接入点设备向各个所述站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示所述调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息。
所述设备指示信息可以通过Scheduled STAs字段表示，用于指示调度的站点设备，例如，STA11-12、STA21-22为调度站点设备，Scheduled STAs字段中可以包括S STA11-12、STA21-22的设备标识信息；
一种可选的实施方式，每个空闲信道上用于调度的子信道的位置相同，所述可用信道的分配信息可以通过Available sub-channels字段和Position of Scheduled sub-channels字段表示，如表3所示，其中，Available sub-channels字段用于指示所述可用信道的全部空闲信道，Position of Scheduled sub-channels字段用于指示每个空闲信道上用于调度的子信道的位置，如图4所示，Position of Scheduled sub-channels字段指示每个空闲信道的子信道1和子信道2分配给调度站点设备；
表3
Figure PCTCN2014094221-appb-000003
另一种可选的实施方式，每个空闲信道上用于调度的子信道的位置不相同，所述可用信道的分配信息可以通过多个Available sub-channels字段和Position of Scheduled sub-channels字段的组合指示，如表4所示，例如通过 Available Channel 1、Scheduled sub-channels in channel 1和Scheduled STAs in channel1指示将主信道的子信道1分配给STA1。
表4
Figure PCTCN2014094221-appb-000004
S74，所述接入点设备接收各个所述站点设备根据所述控制帧发送的请求发送帧。
具体地，各个所述站点设备接收到所述控制帧之后，以目标站点设备为例，所述目标站点设备首先根据所述设备指示信息，判断自身站点设备是否为调度站点设备，若所述目标站点设备为调度站点设备，则根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
若所述目标站点设备不是调度站点设备，所述目标站点设备则根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，通过选择的所述空闲信道或空闲子信道发送请求发送帧。
S75，所述接入点设备根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
具体地，所述调度策略可以根据接收的所述请求发送帧的情况以及子信道的空闲情况灵活调整；假设，所述接入点设备接收的请求发送帧的情况如图4所示，由于STA14、STA15、STA25和STA26发送的请求发送帧发生了碰撞，所以，所述接入点设备无法正常接收对应的请求发送帧，因此，接入点设备认为STA14、STA15、STA25和STA26没有数据缓存，则将该子信道分配给其他站点设备，具体分配可以参阅图4，在此不再赘述。
需要说明的是，CTS具体发送格式(例如采用整个带宽还是子信道进行发送)不属于本发明不做限定，任何其它实施方式也都适用与本发明实施例。
在图7所示的实施例中，针对于获取的可用信道包括至少两个空闲信道的情况，接入点设备可以根据各个站点设备的业务的优先级，在各个所述站点设 备中选择调度站点设备，并将每个所述空闲信道的一部分子信道作为所述调度信道分配给调度站点设备，将每个所述空闲信道剩余的子信道作为所述随机竞争信道，即可以满足高优先级的业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高了系统的效率。
请参阅图8，图8是本发明实施例提供的又一种获取站点设备请求的方法示意图。本发明实施例是从站点设备角度描述的。如图8所示本发明实施例中的获取站点设备请求的方法可以包括：
S81，站点设备接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息。
站点设备通过侦听获取接入点设备发送的控制帧，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道可以通过所述可用信道除去所述调度信道而获得。
S82，所述站点设备根据所述设备指示信息，判断自身设备是否为所述调度站点设备。
假设，所述站点设备接收到的所述控制帧如表1所示，所述站点设备可以根据Scheduled STAs字段，判断自身设备是否为所述调度站点设备。
具体地，所述Scheduled STAs字段中可以包括调度站点设备的标识信息，若所述标识信息中包括自身设备的标识信息，所述站点设备则可以判定自身设备为所述调度站点设备。
S83，若是，所述站点设备根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧。
假设，所述站点设备接收到的所述控制帧仍以表1为例，当所述站点设备根据Scheduled STAs判定自身设备为调度站点设备时，可以根据Scheduled sub-channels字段确定接入点设备为自身设备分配的调度信道，再通过确定的 所述调度信道发送请求发送帧。
进一步地，若所述站点设备为所述调度站点设备，所述站点设备还可以检测自身设备是否存在缓存数据，若自身设备存在缓存数据，所述接入点设备才通过确定的所述调度信道发送请求发送帧。
再进一步地，所述站点设备在接收到所述控制帧时开始等待，直到等待时长等于预设时长时，才发送请求发送帧。例如，所述等待时长为t，所述站点设备可以在接收到所述控制帧时就开始计时，当所述站点设备确定了对应的调度信道时，所述站点设备可以进一步检测等待时长是否达到t，若否，所述站点设备直到等待时长等于t时，才发送请求发送帧。
其中，所述等待时长可以是所述接入点设备指定的时长。
S84，若否，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，并通过选择的所述空闲信道或空闲子信道发送请求发送帧。
若所述站点设备不是所述调度站点设备，所述站点设备可以根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，所述站点设备通过选择的所述空闲信道或空闲子信道发送请求发送帧。
如果，所述站点设备接收到的所述控制帧的格式如表1所示，即所述可用信道的分配信息通过Scheduled sub-channels字段和Random access sub-channels字段指示，所述站点设备可以通过Random access sub-channels字段获取可选择的随机竞争信道，从而在所述随机竞争信道中选择至少一个空闲信道或空闲子信道；
如果，所述站点设备接收到的所述控制帧的格式如表2所示，即所述可用信道的分配信道通过Scheduled sub-channels字段和Available sub-channels字段指示，所述站点设备可以根据Available sub-channels字段指示的信道除去Scheduled sub-channels字段指示的信道获取可选的的随机竞争信道，从而在所述随机竞争信道中选择至少一个空闲信道或空闲子信道；
如果，所述站点设备接收到的所述控制帧的格式如表3或表4所示，即所 述可用信道的分配信道通过Available sub-channels字段和Position of Scheduled sub-channels字段表示，所述站点设备可以根据Position of Scheduled sub-channels字段确定每个空闲信道中的调度信道的位置，再除去每个空闲信道对应位置的调用信道，进而获取可选的的随机竞争信道，从而在所述随机竞争信道中选择至少一个空闲信道或空闲子信道。
进一步地，所述设备指示信息还用于指示非调度站点设备，若所述站点设备不是所述调度站点设备，所述站点设备进一步还可以通过所述设备指示信息判断自身设备是否为非调度站点设备，若是，所述站点设备才在所述随机竞争信道中选择至少一个空闲信道或空闲子信道；否则，所述站点设备不发送请求发送帧。
在图8所示的实施例中，站点设备可以接收接入点设备发送的控制帧，根据所述控制帧中的设备指示信息，判断自身设备是否为所述调度站点设备，若是，则确定调度信道，否则，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，即可以满足高优先级的业务的接入需求，又可以避免大量站点设备的无效反馈，从而提高了系统的效率。
请参阅图9，图9是本发明实施例提供的又一种获取站点设备请求的方法示意图。本发明实施例是从站点设备角度描述的。如图9所示本发明实施例中的获取站点设备请求的方法可以包括：
S91，站点设备接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备和非调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息。
站点设备通过侦听获取接入点设备发送的控制帧，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道可以通过所述可用信道除去所述调度信道而获得。
S92，所述站点设备根据所述设备指示信息，判断自身设备是否为所述调 度站点设备。
假设，所述站点设备接收到的所述控制帧如表1所示，所述站点设备可以根据Scheduled STAs字段，判断自身设备是否为所述调度站点设备。
具体地，所述Scheduled STAs字段中可以包括调度站点设备的标识信息，若所述标识信息中包括自身设备的标识信息，所述站点设备则可以判定自身设备为所述调度站点设备。
S93，若所述站点设备是所述调度站点设备，所述站点设备检测自身设备是否存在缓存数据。
S94，若所述站点设备存在缓存数据，所述站点设备则根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧。
假设，所述站点设备接收到的所述控制帧仍以表1为例，若所述站点设备检测到存在缓存数据，所述站点设备可以根据Scheduled sub-channels字段确定接入点设备为自身设备分配的调度信道，再通过确定的所述调度信道发送请求发送帧。
进一步地，所述站点设备在接收到所述控制帧时开始等待，直到等待时长等于预设时长时，才发送请求发送帧。例如，所述等待时长为t，所述站点设备可以在接收到所述控制帧时就开始计时，当所述站点设备确定了对应的调度信道时，所述站点设备可以进一步检测等待时长是否达到t，若否，所述站点设备直到等待时长等于t时，才发送请求发送帧。
S95，若所述站点设备不是所述调度站点设备，所述站点设备根据所述设备指示信息，判断自身设备是否为所述非调度站点设备。
所述控制帧的格式可以如表5所示，设备指示信息可以包括Scheduled STAs字段和Non-Scheduled STAs字段，所述Non-Scheduled STAs字段用于指示非调度站点设备，所述站点设备通过所述Scheduled STAs判定自身设备不是调度站点设备时，可以通过Non-Scheduled STAs判断自身设备是否为非调度站点设备。
表5
Figure PCTCN2014094221-appb-000005
S96，若所述站点设备是所述非调度站点设备，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，并通过选择的所述空闲信道或空闲子信道发送请求发送帧。
如果，所述站点设备接收到的所述控制帧的格式如表1所示，即所述可用信道的分配信息通过Scheduled sub-channels字段和Random access sub-channels字段指示，所述站点设备可以通过Random access sub-channels字段获取可选择的随机竞争信道，从而在所述随机竞争信道中选择至少一个空闲信道或空闲子信道；
如果，所述站点设备接收到的所述控制帧的格式如表2所示，即所述可用信道的分配信道通过Scheduled sub-channels字段和Available sub-channels字段指示，所述站点设备可以根据Available sub-channels字段指示的信道除去Scheduled sub-channels字段指示的信道获取可选的的随机竞争信道，从而在所述随机竞争信道中选择至少一个空闲信道或空闲子信道；
如果，所述站点设备接收到的所述控制帧的格式如表3或表4所示，即所述可用信道的分配信道通过Available sub-channels字段和Position of Scheduled sub-channels字段表示，所述站点设备可以根据Position of Scheduled sub-channels字段确定每个空闲信道中的调度信道的位置，再除去每个空闲信道对应位置的调用信道，进而获取可选的的随机竞争信道，从而在所述随机竞争信道中选择至少一个空闲信道或空闲子信道。
进一步地，所述站点设备在接收到所述控制帧时开始等待，直到等待时长等于预设时长时，才发送请求发送帧。例如，所述等待时长为t，所述站点设 备可以在接收到所述控制帧时就开始计时，当所述站点设备在随机竞争信道中选择了至少一个空闲信道或空闲子信道，所述站点设备可以进一步检测等待时长是否达到t，若否，所述站点设备直到等待时长等于t时，才发送请求发送帧。
S97，若所述站点设备不存在缓存数据或所述站点设备不是所述非调度站点设备，所述站点设备则不发送请求发送帧。
在图9所示的实施例中，站点设备可以根据控制帧中的设备指示信息，判断自身设备是否为调度站点设备，若是，则确定调度信道，若否，则进一步判断自身设备是否为非调度站点设备，若是，才在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，接入点设备控制了接入信道的站点设备的数据，进而，控制了数据碰撞的概率，从而提高了系统的效率。
请参与图10，图10是本发明实施例提供的一种接入点设备的结构示意图。如图10所示本发明实施例中的接入点设备10至少可以包括发送模块101、接收模块102以及调度模块103，其中：
发送模块101，用于向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息。
所述可用信道可以是连续的信道，也可以是离散的信道，本发明不做限定。
可选地，所述非调度站点设备可以包括基本服务集中，除去所述设备指示信息指示的调度站点设备以外的站点设备，假设，基本服务集中包括STA1、STA2、STA3、STA4以及STA5，所述设备指示信息指示STA1和STA2为调度站点设备，则STA3、STA4以及STA5则为非调度站点设备，也就是说，STA3、STA4以及STA5可以通过随机竞争接入信道；
进一步地，所述设备指示信息还用于指示非调度站点设备，则所述非调度站点设备通过所述设备指示信息确定，假设，基本服务集中仍包括STA1、 STA2、STA3、STA4以及STA5，所述设备指示信息指示STA1和STA2为调度站点设备，STA3和STA4为非调度站点设备，也就是说，STA5不能接入信道，通过控制随机竞争的站点设备，可以有效控制数据碰撞的概率，从而，进一步提高系统的效率。
可选地，所述接入点设备10还可以包括选择模块104，用于根据各个所述站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
进一步地，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得。
若所述可用信道包括一个空闲信道，所述接入点设备10还可以包括：
第一信道分配模块105，用于将所述空闲信道的一部分子信道作为所述调度信道，将所述空闲信道的剩余部分子信道作为所述随机竞争信道。
如图2所示，假设，所述空闲信道被划分为8个子信道，STA1-2为调度站点设备，STA3-6为非调度站点设备，第一信道分配模块105可以将子信道1作为调度信道分配给STA1，将子信道2作为调度信道分配给STA2，剩余的子信道3-8作为可选择的随机竞争信道。
若所述可用信道包括至少两个空闲信道，所述接入点设备10还可以包括：
第二信道分配模块106，用于将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道。
进一步地，若所述可用信道包括一个预设的主信道和至少一个从信道，所述第二信道分配模块106具体可以用于：
将所述主信道作为所述调度信道，将所述至少一个从信道作为所述随机竞争信道。
再进一步地，所述至少两个空闲信道中的每个所述空闲信道可以包括多个子信道，第二信道分配模块106可以将其中一部分所述空闲信道的全部子信道作为所述调度信道，将剩余的所述空闲信道的全部子信道作为所述随机竞争新道；
以两个空闲信道为例，假设，其中一个空闲信道为主信道，另一个空闲信道为从信道，如图3所示，每个空闲信道被划分为8个子信道，STA11-18为调度站点设备，STA21-27为非调度站点设备，第二信道分配模块106可以将主信道的8个子信道作为调度信道分别分配给STA11-18，将从信道的8个子信道作为可选择的随机竞争信道。
若所述可用信道包括至少两个空闲信道，所述接入点设备10还可以包括：
第三信道分配模块107，用于将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道。
仍以两个空闲信道为例，假设，其中一个空闲信道为主信道，另一个空闲信道为从信道，且每个空闲信道被划分为8个子信道，STA11-12、STA21-22为调度站点设备，STA13-16、STA23-26为非调度站点设备，第三信道分配模块107可以以以下两种方式中的任一种方式分配调度信道：
第一，每个空闲信道上用于调度的子信道的位置相同，如图4所示，第三信道分配模块107将主信道的子信道1和子信道2分配给调度站点设备STA11-12，同样，将从信道的子信道1和子信道2分配给调度站点设备STA21-22，剩余子信道作为随机竞争信道；
第二，每个空闲信道上用于调度的子信道的位置不相同，例如，第三信道分配模块107将主信道的子信道1和子信道2分配给调度站点设备STA11-12，将从信道的子信道3和子信道4分配给调度站点设备STA21-22，剩余子信道作为随机竞争信道。
接收模块102，用于接收各个所述站点设备根据所述控制帧发送的请求发送帧。
调度模块103，用于根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
可理解的是，本实施例的接入点设备10的各功能模块的功能可根据上述方法实施例中的方法具体实现，可以具体对应参考图1至图7方法实施例的相关描述，此处不再赘述。
请参阅图11，图11是本发明实施例提供的另一种接入点设备的结构示意图，如图11所示，该接入点设备11可以包括：至少一个处理器111，例如CPU，至少一个通信总线112，无线信号收发装置113以及存储器114。其中，无线信号收发装置113用于收发信号，例如控制帧、允许发送帧等；通信总线112用于实现这些组件之间的连接通信。存储器114可以是高速RAM存储器，也可以是非非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器114中存储一组程序代码，且处理器111用于调用存储器114中存储的程序代码，用于执行以下操作：
通过无线信号收发装置113向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
通过无线信号收发装置113接收各个所述站点设备根据所述控制帧发送的请求发送帧；
根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
如果，所述可用信道包括一个空闲信道，处理器111通过无线信号收发装置113向站点设备发送控制帧之前，还可以执行以下操作：
将所述空闲信道的一部分子信道作为所述调度信道，将所述空闲信道的剩余部分子信道作为所述随机竞争信道。
如果，所述可用信道包括至少两个空闲信道，处理器111通过无线信号收发装置113向站点设备发送控制帧之前，还可以执行以下操作：
将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道。
若所述可用信道包括一个预设的主信道和至少一个从信道，处理器111将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道具体可以为：
将所述主信道作为所述调度信道，将所述至少一个从信道作为所述随机竞争信道。
如果，所述可用信道包括至少两个空闲信道，处理器111通过无线信号收发装置113向站点设备发送控制帧之前，还可以执行以下操作：
将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道。
可选地，所述设备指示信息还用于指示非调度站点设备。
可选地，处理器111通过无线信号收发装置113向站点设备发送控制帧之前，还可以执行以下操作：
根据各个所述站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
进一步地，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得。
可理解的是，本实施例的接入点设备11的各功能模块的功能可根据上述方法实施例中的方法具体实现，可以具体对应参考图1至图7方法实施例的相关描述，此处不再赘述。
请参阅图12，图12是本发明实施例提供一种站点设备的结构示意图。如图12所示，本发明实施例中的站点设备12至少可以包括：接收模块121、判断模块122、处理模块123以及发送模块124，其中：
接收模块121，用于接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息。
判断模块122，用于根据所述设备指示信息，判断所述站点设备是否为所述调度站点设备。
处理模块123，用于若所述判断模块122判定所述站点设备为所述调度站点设备，根据所述可用信道的分配信息确定对应的调度信道。
发送模块124，用于通过确定的所述调度信道发送请求发送帧，以使所述接入点设备根据所述请求发送帧为所述站点设备进行资源调度。
所述处理模块123还用于：
若所述判断模块122判定所述站点设备不是所述调度站点设备，则根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道。
所述发送模块124还用于：
通过选择的所述空闲信道或空闲子信道发送请求发送帧。
进一步地，所述站点设备12还可以包括：
检测模块125，用于若所述判断模块122判定所述站点设备为所述调度站点设备时，检测所述站点设备是否存在数据缓存，若检测到存在数据缓存，则触发所述处理模块123根据所述可用信道的分配信息确定对应的调度信道。
再进一步地，所述设备指示信息还用于指示非调度站点设备，若所述站点设备不是所述调度站点设备，所述判断模块122还用于：
根据所述设备指示信息，判断所述站点设备是否为所述非调度站点设备，若判定所述站点设备为所述非调度站点设备，则触发所述处理模块123在所述随机竞争信道中选择至少一个空闲信道或空闲子信道。
再进一步地，所述发送模块124还用于：
从所述接收模块121接收到所述控制帧开始等待，直到等待时长等于预设时长时，才通过确定的所述调度信道发送请求发送帧。
可理解的是，本实施例的接入点设备12的各功能模块的功能可根据上述方法实施例中的方法具体实现，可以具体对应参考图8至图9方法实施例的相关描述，此处不再赘述。
请参阅图13，图13是本发明实施例提供的另一种站点设备的结构示意图， 如图13所示，该站点设备13可以包括：至少一个处理器131，例如CPU，至少一个通信总线132，无线信号收发装置133以及存储器134。其中，无线信号收发装置133用于收发信号，例如控制帧、请求发送帧等；通信总线132用于实现这些组件之间的连接通信。存储器134可以是高速RAM存储器，也可以是非非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器134中存储一组程序代码，且处理器131用于调用存储器134中存储的程序代码，用于执行以下操作：
通过无线信号收发装置133接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
根据所述设备指示信息，判断自身设备是否为所述调度站点设备；
若是，所述站点设备根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
若否，根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，并通过选择的所述空闲信道或空闲子信道发送请求发送帧。
进一步地，若所述站点设备为所述调度站点设备，处理器131根据所述可用信道的分配信息确定对应的调度信道之前，还可以执行以下操作：
确定自身设备存在缓存数据。
再进一步地，所述设备指示信息还用于指示非调度站点设备，若所述站点设备不是所述调度站点设备，处理器131根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道之前，还可以执行以下操作：
根据所述设备指示信息，确定自身设备为所述非调度站点设备。
再进一步地，处理器131还可以执行以下操作：
从接收到所述控制帧开始等待，直到等待时长等于预设时长时，才发送所 述请求发送帧。
可理解的是，本实施例的接入点设备13的各功能模块的功能可根据上述方法实施例中的方法具体实现，可以具体对应参考图8至图9方法实施例的相关描述，此处不再赘述。
请参阅图14，图14是本发明实施例提供的一种获取站点设备请求的系统结构示意图。本发明实施例提供的获取站点设备请求的系统包括接入点设备和至少一个站点设备，其中图14中的N表示站点设备的个数，N取整数。其中，所述接入点设备请参阅图10和图11对应的实施例，所述站点设备请参阅图12和图13对应的实施例，在此不再赘述。
本发明实施例还提出了一种计算机存储介质，所述计算机存储介质存储有程序，所述程序执行时包括本发明实施例结合图1～图7所描述的方法中的部分或全部的步骤。
本发明实施例还提出了一种计算机存储介质，所述计算机存储介质存储有程序，所述程序执行时包括本发明实施例结合图8和图9所描述的方法中的部分或全部的步骤。
本发明实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本发明实施例装置中的模块可以根据实际需要进行合并、划分和删减。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不是必须针对相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组 合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本发明的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本发明的实施例所属技术领域的技术人员所理解。
在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的程序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用，或结合这些指令执行系统、装置或设备而使用。就本说明书而言，"计算机可读介质"可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(电子装置)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序，然后将其存储在计算机存储器中。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或 部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本发明各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (29)

  1. 一种获取站点设备请求的方法，其特征在于，所述方法包括：
    接入点设备向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
    所述接入点设备接收各个所述站点设备根据所述控制帧发送的请求发送帧；
    所述接入点设备根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
  2. 如权利要求1所述的方法，其特征在于，若所述可用信道包括一个空闲信道，所述接入点设备向站点设备发送控制帧之前，所述发送还包括：
    所述接入点设备将所述空闲信道的一部分子信道作为所述调度信道，将所述空闲信道的剩余部分子信道作为所述随机竞争信道。
  3. 如权利要求1所述的方法，其特征在于，若所述可用信道包括至少两个空闲信道，所述接入点设备向站点设备发送控制帧之前，所述方法还包括：
    所述接入点设备将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道。
  4. 如权利要求3所述的方法，其特征在于，若所述可用信道包括一个预设的主信道和至少一个从信道，所述接入点设备将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道包括：
    所述接入点设备将所述主信道作为所述调度信道，将所述至少一个从信道作为所述随机竞争信道。
  5. 如权利要求1所述的方法，其特征在于，若所述可用信道包括至少两个空闲信道，所述接入点设备向站点设备发送控制帧之前，所述方法还包括：
    所述接入点设备将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道。
  6. 如权利要求1-5任一项所述的方法，其特征在于，所述设备指示信息还用于指示非调度站点设备。
  7. 如权利要求1-5任一项所述的方法，其特征在于，所述接入点设备向站点设备发送控制帧之前，所述方法还包括：
    所述接入点设备根据各个所述站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
  8. 如权利要求1-7任一项所述的方法，其特征在于，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得。
  9. 一种获取站点设备请求的方法，其特征在于，所述方法包括：
    站点设备接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
    所述站点设备根据所述设备指示信息，判断自身设备是否为所述调度站点设备；
    若是，所述站点设备根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
    若否，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，并通过选择的所述空闲信道或空闲子信道发送请求发送帧。
  10. 如权利要求9所述的方法，其特征在于，若所述站点设备为所述调度站点设备，所述站点设备根据所述可用信道的分配信息确定对应的调度信道之前，所述方法还包括：
    所述站点设备确定自身设备存在缓存数据。
  11. 如权利要求9所述的方法，其特征在于，所述设备指示信息还用于指示非调度站点设备，若所述站点设备不是所述调度站点设备，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道之前，所述方法还包括：
    所述站点设备根据所述设备指示信息，确定自身设备为所述非调度站点设备。
  12. 如权利要求9-11任一项所述的方法，其特征在于，所述方法还包括：
    所述站点设备从接收到所述控制帧开始等待，直到等待时长等于预设时长时，才发送所述请求发送帧。
  13. 一种接入点设备，其特征在于，所述接入点设备包括：
    发送模块，用于向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
    接收模块，用于接收各个所述站点设备根据所述控制帧发送的请求发送帧；
    调度模块，用于根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
  14. 如权利要求13所述的设备，其特征在于，若所述可用信道包括一个空闲信道，所述设备还包括：
    第一信道分配模块，用于将所述空闲信道的一部分子信道作为所述调度信道，将所述空闲信道的剩余部分子信道作为所述随机竞争信道。
  15. 如权利要求13所述的设备，其特征在于，若所述可用信道包括至少两个空闲信道，所述设备还包括：
    第二信道分配模块，用于将所述至少两个空闲信道中的一部分所述空闲信道作为所述调度信道，将剩余的所述空闲信道作为所述随机竞争信道。
  16. 如权利要求15所述的设备，其特征在于，若所述可用信道包括一个预设的主信道和至少一个从信道，所述第二信道分配模块具体用于：
    将所述主信道作为所述调度信道，将所述至少一个从信道作为所述随机竞争信道。
  17. 如权利要求13所述的设备，其特征在于，若所述可用信道包括至少两个空闲信道，所述设备还包括：
    第三信道分配模块，用于将每个所述空闲信道的一部分子信道作为所述调度信道，将每个所述空闲信道剩余的子信道作为所述随机竞争信道。
  18. 如权利要求13-17任一项所述的设备，其特征在于，所述设备指示信息还用于指示非调度站点设备。
  19. 如权利要求13-17任一项所述的设备，其特征在于，所述设备还包括：
    选择模块，用于根据各个所述站点设备的业务的优先级，在各个所述站点设备中选择调度站点设备。
  20. 如权利要求13-19任一项所述的设备，其特征在于，所述可选择的随机竞争信道的信息用于指示可选择的随机竞争信道，所述可选择的随机竞争信道通过所述可用信道除去所述调度信道而获得。
  21. 一种站点设备，其特征在于，所述站点设备包括：
    接收模块，用于接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
    判断模块，用于根据所述设备指示信息，判断所述站点设备是否为所述调度站点设备；
    处理模块，用于若所述判断模块判定所述站点设备为所述调度站点设备，根据所述可用信道的分配信息确定对应的调度信道；
    发送模块，用于通过确定的所述调度信道发送请求发送帧，以使所述接入点设备根据所述请求发送帧为所述站点设备进行资源调度；
    所述处理模块还用于：
    若所述判断模块判定所述站点设备不是所述调度站点设备，则根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道；
    所述发送模块还用于：
    通过选择的所述空闲信道或空闲子信道发送请求发送帧。
  22. 如权利要求21所述的设备，其特征在于，所述设备还包括：
    检测模块，用于若所述判断模块判定所述站点设备为所述调度站点设备时，检测所述站点设备是否存在数据缓存，若检测到存在数据缓存，则触发所述处理模块根据所述可用信道的分配信息确定对应的调度信道。
  23. 如权利要求21所述的设备，其特征在于，所述设备指示信息还用于指示非调度站点设备，若所述站点设备不是所述调度站点设备，所述判断模块还用于：
    根据所述设备指示信息，判断所述站点设备是否为所述非调度站点设备，若判定所述站点设备为所述非调度站点设备，则触发所述处理模块在所述随机竞争信道中选择至少一个空闲信道或空闲子信道。
  24. 如权利要求21-23任一项所述的设备，其特征在于，所述发送模块还用于：
    从所述接收模块接收到所述控制帧开始等待，直到等待时长等于预设时长时，才通过确定的所述调度信道发送请求发送帧。
  25. 一种接入点设备，其特征在于，所述接入点设备包括无线信号收发装置、存储器以及处理器，其中，存储器中存储一组程序代码，且处理器用于调用存储器中存储的程序代码，用于执行以下操作：
    向站点设备发送控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
    接收各个所述站点设备根据所述控制帧发送的请求发送帧；
    根据接收的所述请求发送帧，对各个所述站点设备进行资源调度。
  26. 一种站点设备，其特征在于，所述站点设备包括无线信号收发装置、存储器以及处理器，其中，存储器中存储一组程序代码，且处理器用于调用存储器中存储的程序代码，用于执行以下操作：
    站点设备接收接入点设备发送的控制帧，所述控制帧包含设备指示信息以及可用信道的分配信息，所述设备指示信息用于指示调度站点设备，所述分配信息包括为各个所述调度站点设备分配调度信道的信息以及为非调度站点设备分配的可选择的随机竞争信道的信息；
    所述站点设备根据所述设备指示信息，判断自身设备是否为所述调度站点设备；
    若是，所述站点设备根据所述可用信道的分配信息确定对应的调度信道，并通过确定的所述调度信道发送请求发送帧；
    若否，所述站点设备根据所述可用信道的分配信息，在所述随机竞争信道中选择至少一个空闲信道或空闲子信道，并通过选择的所述空闲信道或空闲子 信道发送请求发送帧。
  27. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有程序，所述程序执行时包括权利要求1-8任一项所述的步骤。
  28. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有程序，所述程序执行时包括权利要求9-12任一项所述的步骤。
  29. 一种获取站点设备请求的系统，其特征在于，所述系统包括接入点设备和至少一个站点设备，其中：
    所述接入点设备为如权利要求13-20任一项所述的接入点设备；
    所述站点设备为如权利要求21-24任一项所述的站点设备。
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