WO2020211737A1 - 无线通信方法和装置 - Google Patents

无线通信方法和装置 Download PDF

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Publication number
WO2020211737A1
WO2020211737A1 PCT/CN2020/084607 CN2020084607W WO2020211737A1 WO 2020211737 A1 WO2020211737 A1 WO 2020211737A1 CN 2020084607 W CN2020084607 W CN 2020084607W WO 2020211737 A1 WO2020211737 A1 WO 2020211737A1
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WIPO (PCT)
Prior art keywords
transmission
information
time period
channel
station
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PCT/CN2020/084607
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English (en)
French (fr)
Inventor
黄国刚
杨懋
李波
李云波
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华为技术有限公司
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Publication of WO2020211737A1 publication Critical patent/WO2020211737A1/zh
Priority to US17/451,104 priority Critical patent/US12047919B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access

Definitions

  • the embodiments of the present application relate to wireless communication technology, and in particular to a wireless communication method and device.
  • IEEE 802.11 is a common standard for wireless local area networks today. It is a standard for wireless network communication defined by the International Institute of Electrical and Electronic Engineering (IEEE). IEEE 802.11 adopts Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) protocol with collision avoidance to implement distributed channel access.
  • CSMA/CA Carrier Sense Multiple Access/Collision Avoidance
  • CSMA/CA When using CSMA/CA, if the station detects that the channel is busy, it will back off for a random period of time after the channel is idle again. This approach of always backing off for a random period of time after another station occupies the channel avoids collisions between stations. However, as the number of sites increases and the deployment of access points (Access Point, AP) becomes denser, the CSMA/CA mechanism will still cause frequent collisions, leading to very serious performance degradation.
  • AP Access Point
  • the bandwidth supported by the Wi-Fi standard is getting larger and larger, but there is always only one 20MHz main channel, and the main channel is required for management, control, and data frame transmission.
  • the 20MHz primary channel is occupied, other secondary channels cannot be used even if they are free.
  • the heavy dependence on the main channel under large bandwidth transmission makes the channel utilization rate low.
  • the embodiments of the present application provide a wireless communication method and device to improve channel utilization.
  • an embodiment of the present application provides a wireless communication method.
  • the method may include: a station receives a first transmission allocation frame sent by a first access point on a common control channel, where the first transmission allocation frame is used to indicate The station communicates with the first access point in the first time period of the first data channel; the station communicates with the first access point in the first time period of the first data channel.
  • the first transmission allocation frame includes channel information and time information, the channel information is used to indicate the first data channel, and the time information is used to indicate the first time period.
  • the channel information includes an operating class (operating class), a band identifier (band ID), and a primary channel number (Primary channel index).
  • operating class operating class
  • band ID band identifier
  • Primary channel index Primary channel index
  • the channel information may also include bandwidth information and at least one channel center frequency information.
  • the bandwidth information and at least one channel center frequency information are used to indicate the bandwidth and center frequency of a data channel with a bandwidth greater than 20 MHz.
  • the time information may include related information for indicating a time period.
  • the first transmission allocation frame may further include a receiving address and a sending address.
  • the first transmission allocation frame further includes uplink and downlink indication information, and the uplink and downlink indication information is used to indicate the transmission type of communication in the first time period of the first data channel, so The transmission type includes downlink transmission, single-user uplink transmission, or multi-user uplink transmission.
  • the first transmission allocation frame further includes service restriction information, and the service restriction information is used to indicate a service type for communication in the first time period of the first data channel.
  • the service type may include background streaming, normal data, voice, or video.
  • the method further includes: if the station does not successfully access the first data channel during the stay of the station in the first time period or in the first time period, , The station switches to the common control channel.
  • the first transmission allocation frame further includes length of stay indication information, and the length of stay indication information is used to indicate the length of stay.
  • the method further includes: the station sends a transmission demand frame on a common control channel, and the transmission demand frame is used to report an uplink transmission demand of the station.
  • the transmission demand frame includes at least one of aperiodic service indication information and periodic service indication information
  • the aperiodic service indication information includes service type indication information and at least one service type.
  • the size of the data to be transmitted is used to indicate the at least one service type
  • the periodic service information includes communication flow indication information and at least one communication flow attribute information
  • the communication flow indication information is used To indicate the at least one communication flow.
  • the common control channel includes a plurality of time slots, each time slot includes a first phase and a second phase, and the first phase is used by the station to transmit data in the first phase.
  • the transmission demand frame, the second phase is used by the station to receive the first transmission allocation frame, and the first time period of the first transmission allocation frame is the next time slot of the time slot where the second phase is located Time period in.
  • inventions of the present application provide a wireless communication method.
  • the method may include: a first access point sends a first transmission allocation frame to a first station on a common control channel, where the first transmission allocation frame is used for Instruct the first station to communicate with the first access point in at least one first time period of at least one first data channel; the first access point is in at least one of the at least one first data channel Communicate with the first site in the first time period.
  • the method further includes: the first access point receives a transmission demand frame sent by the first station on the common control channel, the transmission demand frame including the first The uplink transmission demand of the station; the first access point determines the first transmission allocation frame according to the transmission demand frame sent by the first station.
  • the first access point sending the first transmission allocation frame to the first station on the common control channel includes: a sending window of the first access point on the common control channel Internally send the first transmission allocation frame to the first station; the duration of the sending window is less than the first preset duration T, and the end point of the sending window is the farthest first time period in the at least one first time period The starting point of a time period; or, the duration of the sending window is less than the second preset duration L, the end point of the sending window is the end point of the allocated time period, and the allocated time period is the first The time period for communication indicated by the second transmission allocation frame sent by the access point before sending the first transmission allocation frame.
  • the common control channel includes a plurality of time slots, each time slot includes a first phase and a second phase, and the first phase is used to receive the transmission demand frame sent by the first station , The second phase is used to send the first transmission allocation frame to the first station, and the at least one first time period indicated by the first transmission allocation frame is included when the second phase is In the next time slot of the slot.
  • the first transmission allocation frame includes at least one channel information and at least one time information, each channel information is used to indicate a first data channel, and each time information is used to indicate a first time. segment.
  • the first transmission allocation frame further includes uplink and downlink indication information, and the uplink and downlink indication information is used to indicate that communication is performed in at least one first time period of the at least one first data channel.
  • Transmission type the transmission type includes downlink transmission, single-user uplink transmission, or multi-user uplink transmission.
  • the first transmission allocation frame further includes service restriction information, and the service restriction information is used to indicate that the first station is in at least one first time period of the at least one first data channel The type of service used to communicate with the first access point.
  • the transmission allocation frame further includes stay duration indication information, and the stay duration indication information is used to indicate the stay of the first station when the at least one first data channel is not successfully accessed. duration.
  • the method further includes: the first access point receives, on the common control channel, a third transmission allocation frame sent by a second access point, and the third transmission allocation frame is used for Instructing the second station to communicate with the second access point in the second time period of the second data channel; the first access point updates the network allocation vector NAV table according to the third transmission allocation frame, the The updated NAV table includes channel information for indicating the second data channel and time information for indicating the second time period.
  • a wireless communication device may be a site or a chip in the site.
  • the device has the function of realizing the sites involved in the above embodiments. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the device when the device is a station, the device may include a processing module and a transceiver module.
  • the processing module may be, for example, a processor
  • the transceiver module may be, for example, a transceiver.
  • the device may further include a storage unit, and the storage unit may be a memory, for example.
  • the storage unit is used to store computer-executable instructions
  • the processing module is connected to the storage unit, and the processing module executes the computer-executed instructions stored in the storage unit, so that the site can perform the above-mentioned site-related functions Wireless communication method.
  • the chip when the device is a chip in a site, the chip includes a processing module and a transceiver module.
  • the processing module may be a processor, for example, and the transceiver module may be a chip on the chip. Input/output interface, pin or circuit, etc.
  • the device may further include a storage unit, and the processing module can execute computer-executable instructions stored in the storage unit, so that the chip in the site executes any one of the foregoing wireless communication methods involving site functions.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit may also be a storage unit located outside the chip in a site, such as a read-only memory (read-only memory).
  • read-only memory read-only memory
  • memory ROM for short
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (Central Processing Unit, CPU for short), microprocessor, application-specific integrated circuit (ASIC for short), or one or A plurality of integrated circuits used to control the program execution of the method for coordinated allocation of channel resources in the above aspects.
  • CPU Central Processing Unit
  • ASIC application-specific integrated circuit
  • the present application provides a wireless communication device, which may be an access point or a chip in the access point.
  • the device has the function of implementing the various embodiments related to the access point in the above aspects. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the device when the device is an access point, the device may include: a processing module and a transceiver module.
  • the processing module may be a processor, for example, the transceiver module may be a transceiver, and the The transceiver includes a radio frequency circuit.
  • the device further includes a storage unit, which may be a memory, for example.
  • the storage unit is used to store computer-executed instructions
  • the processing module is connected to the storage unit, and the processing module executes the computer-executed instructions stored in the storage unit, so that the device executes any of the above-mentioned aspects related to the interface.
  • the wireless communication method of the in-point function when the device includes a storage unit, the storage unit is used to store computer-executed instructions, the processing module is connected to the storage unit, and the processing module executes the computer-executed instructions stored in the storage unit, so that the device executes any of the above-mentioned aspects related to the interface.
  • the chip when the device is a chip in an access point, the chip includes: a processing module and a transceiver module.
  • the processing module may be, for example, a processor, and the transceiver module may be, for example, the chip.
  • the processing module can execute the computer-executable instructions stored in the storage unit, so that the chip in the access point executes the above-mentioned wireless communication methods involving the functions of the access point.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the access point, such as a ROM or Other types of static storage devices, RAM, etc. that store static information and instructions.
  • the processor mentioned in any of the foregoing may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the execution of the programs of the foregoing wireless communication method.
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct the execution of any one of the first aspect to the second aspect or any possible implementation manner thereof Method of instruction.
  • a processor configured to be coupled with a memory, and configured to execute any one of the foregoing first to second aspects or a method in any possible implementation manner thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute any one of the first to second aspects or the method in any possible implementation manner thereof.
  • a communication system including: a station in any possible implementation manner of the foregoing first aspect and an access point in any possible implementation manner of the second aspect.
  • the first access point sends a first transmission allocation frame to the station on the common control channel, and the first transmission allocation frame is used to indicate the first time that the station is on the first data channel.
  • the station communicates with the first access point, and the station communicates with the first access point in the first time period of the first data channel, thereby sending the first transmission allocation frame on the common control channel to instruct the station to communicate with the first access point.
  • Point the data channel and time period for communication realize the separation of control and data transmission on different channels, reduce the serious dependence on the main channel, and improve the channel utilization.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the application
  • FIG. 2 is a flowchart of a wireless communication method according to an embodiment of the application.
  • FIG. 3 is a schematic diagram of a common control channel and a data channel according to an embodiment of the application
  • FIG. 4 is a schematic diagram of a data channel according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of a transmission allocation frame according to an embodiment of the application.
  • FIG. 6 is a flowchart of another wireless communication method according to an embodiment of this application.
  • FIG. 7A is a schematic diagram of a transmission demand frame according to an embodiment of the application.
  • FIG. 7B is a schematic diagram of the service information field of the transmission demand frame shown in FIG. 7A according to an embodiment of the application;
  • FIG. 8 is a flowchart of another wireless communication method according to an embodiment of this application.
  • 9A is a schematic diagram of another transmission allocation frame according to an embodiment of the application.
  • FIG. 9B is a schematic diagram of the channel allocation information field of the transmission allocation frame shown in FIG. 9A according to an embodiment of the application;
  • FIG. 10 is a schematic diagram of the channel allocation information field of the transmission allocation frame shown in FIG. 9A according to an embodiment of the application;
  • FIG. 11 is a flowchart of another wireless communication method according to an embodiment of this application.
  • FIG. 12 is a schematic diagram of channel time slotting according to an embodiment of the application.
  • FIG. 13A is a schematic diagram of a transmission timing of a transmission allocation frame according to an embodiment of the application.
  • 13B is a schematic diagram of another transmission timing of a transmission allocation frame according to an embodiment of the application.
  • FIG. 14 is a schematic structural diagram of a wireless communication device provided by an embodiment of this application.
  • 15 is a schematic structural diagram of another wireless communication device provided by an embodiment of this application.
  • FIG. 16 is a schematic structural diagram of yet another wireless communication device provided by an embodiment of this application.
  • FIG. 17 is a schematic structural diagram of another wireless communication device provided by an embodiment of this application.
  • Access Point Based on the 802.11 protocol, it provides wireless access to the station. It is a bridge between wireless and wired networks. It can also be called a "hot spot.”
  • the access point involved in this application has multi-band and multi-radio capabilities.
  • the access point has multiple sets of independent 802.11 chips, that is, each set of 802.11 chips can include an independent baseband processing module and a radio frequency module, so as to support multi-radio capability.
  • Different radio frequency modules can work on different channels on the same bandwidth (band), or on different bandwidths (band).
  • One radio frequency module of the access point can always work on a public control channel, and other radio frequency modules can switch on different channels with different or the same bandwidth (band).
  • the first access point, the second access point, the third access point, etc. involved in this application, the first, second, and third access points are used to distinguish different access points.
  • the access point adopting the wireless communication method of the present application may be an access point with multi-band and multi-radio capabilities as described above.
  • the terminal equipment may be a personal computer (Personal Computer, PC for short) or a mobile terminal, etc.
  • the mobile terminal may also be called User Equipment (UE), access terminal, user unit, user station, mobile station , Mobile station, user terminal, terminal, wireless communication equipment, user agent or user device.
  • UE User Equipment
  • the mobile terminal can be a smart phone, a cellular phone, a cordless phone, a tablet computer, a personal digital assistant (PDA) device, a handheld device with wireless communication function or other processing devices connected to a wireless modem, a vehicle-mounted device, Wearable devices, etc.
  • PDA personal digital assistant
  • the sites involved in this application may have multi-band single radio capabilities, or, alternatively, may also have multi-band multi-radio capabilities.
  • the first site, second site, third site, etc. involved in this application, the first, second, and third sites are used to distinguish different sites.
  • the station that adopts the wireless communication method of the present application may be the above-mentioned multi-band (multi-band) single radio capability, or the above-mentioned multi-band multi-radio capability.
  • An AP and one or more stations can form a Basic Service Set (BSS).
  • BSS Basic Service Set
  • the 802.11 protocol standard specifies that the smallest component of a wireless LAN is the BSS.
  • the wireless communication method of the present application is applicable to a WLAN scenario of one BSS, and can also be applied to a WLAN scenario composed of multiple BSSs, where each BSS has one AP and at least one STA. Some APs or all APs can communicate directly.
  • this application divides the channel into a common control channel and at least one data channel, where the common control channel is used to transmit control information, and the data channel is used to transmit control information. Transmission of data frames.
  • the common control channel and the at least one data channel may be on one bandwidth (band) or on different bandwidths (band).
  • the specific location of the common control channel can be preset or dynamically allocated.
  • Fig. 1 is a schematic diagram of an application scenario of an embodiment of the application.
  • the application scenario is illustrated by taking two BSSs as an example.
  • AP1, STA1, and STA2 form BSS1
  • AP2 and STA3 forms BSS2.
  • BB1 and BB2 may share one common control channel and at least one data channel. Any one or more of STA1, STA2, or STA3 may receive the transmission allocation frame sent by AP1 or AP2 on the common control channel, so as to communicate with AP1 or AP2 in the corresponding time period of the corresponding data channel.
  • the wireless communication method of this application can be used between AP and AP, between STA and STA, and between AP and STA.
  • the embodiments of the present application take communication between the AP and the STA as an example for description, which does not constitute a limitation.
  • time period specifically refers to the time period determined by the start time and the end time on the time axis.
  • the position of the time period on the time axis can be determined according to the start time and duration, or end time and duration, or start time and end time of the time period.
  • Figure 2 is a flowchart of a wireless communication method according to an embodiment of this application.
  • this embodiment relates to a first access point and a station.
  • the first access point may be as shown in Figure 1.
  • the station may be STA1 as shown in FIG. 1.
  • the method in this embodiment may include:
  • Step 101 The first access point sends the first transmission allocation frame to the station on the common control channel.
  • the station receives the first transmission allocation frame sent by the first access point on the common control channel.
  • the first transmission allocation frame is used to instruct the station to communicate with the first access point in the first time period of the first data channel.
  • the first time period may include one or more time units, which can be set flexibly according to requirements.
  • the station communicates with the first access point in the first time period of the first data channel, which may include the station performing downlink data transmission with the first access point in the first time period of the first data channel, or the station Perform uplink data transmission with the first access point in the first time period of the first data channel.
  • the first access point may determine the position and length of the first data channel and/or the first time period on the time axis according to its own transmission needs, or may determine the first data channel and/or the first data channel and/or the first data channel according to the transmission needs of the first station.
  • the position and length of a time period on the time axis of course, it is understandable that other information can also be combined to determine the position and length of the first data channel and/or the first time period on the time axis, thereby generating the first transmission allocation frame.
  • the first access point may determine the position and length of the first data channel and/or the first time period on the time axis according to the data to be transmitted. For example, the first access point may Information such as data size and transmission priority determines the position and length of the first data channel and/or the first time period on the time axis. In some embodiments, the first access point may also comprehensively determine the position and length of the first data channel and/or the first time period on the time axis in combination with the channel quality of each data channel.
  • the first station may send a transmission request to the first access point, and the first access point may determine that the first data channel and/or the first time period is in time according to the transmission request sent by the first station. Position and length on the shaft.
  • the transmission requirement may include information such as the size of the data to be transmitted and the transmission priority.
  • the first access point may also comprehensively determine the position and length of the first data channel and/or the first time period on the time axis in combination with the channel quality of each data channel.
  • the first access point may carry a common control channel switching element in a beacon, and this element is used to make the station switch to the common control channel to receive the transmission from the first access point.
  • This element is used to make the station switch to the common control channel to receive the transmission from the first access point.
  • Step 102 The station communicates with the first access point in the first time period of the first data channel.
  • the station switches to the first data channel indicated by the first transmission allocation frame to communicate with the first access point in the first time period.
  • This communication may include uplink transmission or downlink transmission.
  • the station receives data sent by the first access point in the first time period of the first data channel.
  • the station For uplink transmission, optionally, the station sends data to the first access point in the first time period of the first data channel.
  • the first access point sends a first transmission allocation frame to the station on the common control channel.
  • the first transmission allocation frame is used to instruct the station to communicate with the first access point in the first time period of the first data channel.
  • the station communicates with the first access point in the first time period of the first data channel, so that the first transmission allocation frame is sent on the common control channel to instruct the station to communicate with the first access point on the data channel and
  • the control and data transmission are separated on different channels, which reduces the heavy dependence on the main channel and can improve the channel utilization.
  • FIG. 3 is a schematic diagram of a common control channel and a data channel in an embodiment of the application.
  • the AP sends transmission allocation frame 1 on the common control channel (Control CH).
  • the transmission allocation frame 1 is used to instruct the STA to communicate with the AP in the data channel 1 (Data CH1) communication time period 12.
  • the AP sends a transmission allocation frame 2 on the common control channel (Control CH), and the transmission allocation frame 2 is used to instruct the STA to communicate with the AP in the data channel 2 (Data CH2) communication time period 23.
  • the STA can also send a transmission demand frame to the AP on the common control channel (Control CH) to request communication with the AP.
  • Control CH common control channel
  • the STA sends the transmission request frame 2 to the AP on the common control channel (Control CH).
  • the common control channel of the present application can be used to transmit allocation frames and/or transmit demand frames.
  • the data channel can be used for data transmission in the corresponding time period according to the instructions of the transmission allocation frame.
  • the first transmission allocation frame may include channel information (Channel information) and time information (Time information), where the channel information is used to indicate the first data channel, and the time information is used to indicate the first time segment.
  • Channel information Channel information
  • Time information time information
  • the channel information may include relevant information for indicating the allocated data channel, for example, may include at least one of an operating class (operating class), a band identifier (band ID), or a primary channel number (Primary channel index).
  • This operating class is used to distinguish the spectrum control of different countries/regions.
  • the band identifier can indicate the working frequency band of 2.4 GHz, 5 GHz, or 6 GHz, and the working frequency band indicated by the band identifier (band ID) can be detailed in Table 1 below.
  • the primary channel index (Primary channel index) may indicate a specific 20 MHz channel, for example, may indicate data channel 1 (Data CH1) as shown in FIG. 3.
  • the channel information may also include bandwidth information and at least one Channel center frequency information.
  • the bandwidth information and at least one channel center frequency information are used to indicate the bandwidth and center frequency of a data channel with a bandwidth greater than 20 MHz.
  • the 20 MHz channel indicated by the primary channel index is a part of the data channel with a bandwidth greater than 20 MHz.
  • the 80 MHz bandwidth can be divided into four sub-channels (Sub-Channel), and the sub-channel indicated by the primary channel index (Primary channel index) is one of the data channels.
  • the bandwidth information may include multiple bits, which are used to indicate the bandwidth of the data channel.
  • a bandwidth indicator of 0 means that the bandwidth of the data channel is 20MHz
  • 1 means the bandwidth of the data channel is 40MHz
  • 2 means the bandwidth of the data channel is 80MHz.
  • the at least one channel center frequency information is used to indicate the center frequency of a data channel greater than 20 MHz.
  • one channel center frequency information is used to indicate the center frequency of a data channel with continuous spectrum.
  • the two channel center frequency information is used to indicate the center frequency of the data channel with discontinuous spectrum.
  • the center frequency of the two channels includes a and b
  • the bandwidth indicator is 2, which means that the data channel consists of two 40MHz channels with discontinuous spectrum. Composition, where one center frequency is a and one center frequency is b.
  • the time information may include related information for indicating a time period. For example, it may include a starting time (starting time) and a duration (Duration). Alternatively, the time information may include the end time and duration. Still alternatively, the time information may include a start time and an end time.
  • the above-mentioned channel information and time information can be used to instruct the station to communicate with the first access point in a time period of a data channel
  • the above-mentioned channel information and The time information can be used to indicate that the station communicates with the first access point in multiple time periods of multiple data channels.
  • the above channel information and time information can be used to indicate the number of stations on a data channel. Communicate with the first access point in a period of time.
  • the first transmission allocation frame may further include uplink and downlink indication information.
  • the uplink and downlink indication information is used to indicate the transmission type of communication in the first time period of the first data channel, and the transmission type includes downlink transmission. , Single user uplink transmission, or multi-user uplink transmission.
  • the uplink and downlink indication information of the first transmission allocation frame is used to indicate that the transmission type of communication in the first time period of the first data channel is downlink transmission, and the station transmits data in the first data according to the first transmission allocation frame. Receive data sent by the first access point in the first time period of the channel.
  • the uplink and downlink indication information of the first transmission allocation frame is used to indicate that the transmission type of communication in the first time period of the first data channel is single-user uplink transmission, and the station is based on the first transmission allocation frame on the first data channel. Send data to the first access point in the first time period.
  • the uplink and downlink indication information of the first transmission allocation frame is used to indicate that the transmission type of communication in the first time period of the first data channel is multi-user uplink transmission, and the station receives the first data channel in the first time period. After a trigger frame sent by an access point, the station sends uplink data to the first access point. The trigger frame is used to trigger the uplink transmission of multiple stations.
  • the first transmission allocation frame further includes traffic limitation information (Traffic limitation information), and the traffic limitation information is used to indicate a service type for communication in the first time period of the first data channel.
  • Traffic limitation information Traffic limitation information
  • the service type can include background streaming, normal data, voice or video.
  • the access category (Access Category, AC) or the communication identifier (Traffic identifier, TID) can be used to indicate the transmission requirements of different service types.
  • AC has four priorities, namely AC0, AC1, AC2, and AC3.
  • the service restriction information may include AC0 to indicate that the service type allowed for communication by the first station in the first time period of the first data channel is AC0.
  • the station For uplink transmission, the station sends data belonging to AC0 to the first access point in the first time period of the first data channel according to the service restriction information.
  • the various information carried in the above transmission allocation frame may be carried in the corresponding fields of the transmission allocation frame.
  • FIG. 5 is a schematic diagram of a transmission allocation frame according to an embodiment of the application.
  • the transmission allocation frame may include a frame control (Frame control) field, a duration (Duration) field, and a receiver address (RA). ) Field, transmission address (Transmiter Address, TA) field, channel information (Channel information) field, time information (Time information) field, traffic restriction information (Traffic limitation information) field, and frame sequence check (FCS) field.
  • the channel information (Channel information) field can carry the aforementioned channel information
  • the time information (Time information) field can carry the aforementioned time information
  • the traffic limitation information (Traffic limitation information) field can carry the aforementioned service restriction information.
  • a channel information (Channel information) field of the transmission allocation frame may be used to indicate a data channel and a time information field may be used to indicate a time period.
  • the duration (Duration) field is used to indicate the length of time occupied by the transmission allocation frame.
  • the Receiver Address (RA) field may include the address of the target receiving node, for example, the MAC address of the target receiving node. Taking the embodiment shown in FIG. 2 as an example, the RA field of the first transmission allocation frame may include the MAC address of the station.
  • the transmitting address (Transmiter Address, TA) field may include the address of the transmitting node, for example, the MAC address of the transmitting node. Taking the embodiment shown in FIG. 2 as an example, the TA of the first transmission allocation frame may include the MAC address of the first access point.
  • the frame sequence check (FCS) field is used by the receiving end to use the frame sequence check (FCS) to determine whether the transmission allocation frame is received correctly.
  • the station may send an acknowledgement (ACK) to the first access point.
  • ACK acknowledgement
  • the station that receives the transmission allocation frame through the common control channel is determined to be in the first time period of the first data channel.
  • An access point communicates data of corresponding service types, thereby meeting the communication requirements of data of different service types.
  • each field information of the foregoing transmission allocation frame is an example, and the sequence is not limited by this.
  • the transmission allocation frame may also include other field information, which can be flexibly set according to requirements.
  • FIG. 5 only takes the transmission allocation frame including a channel information field and a time information field as an example for description.
  • the transmission allocation frame may further include multiple channel information fields and multiple time information fields corresponding to the multiple channel information fields one-to-one.
  • the transmission allocation frame may include channel information field 1 and time information field 1, channel information field 2 and time information field 2, ..., channel information field n and time information field n, channel information fields 1 to n and The time information fields 1 to n have a one-to-one correspondence.
  • the transmission allocation frame may also include a channel information field and a time information field corresponding to a channel information field.
  • the transmission allocation frame may include channel information field 1 and time information field 1, time information field 2, ..., Time information field n.
  • the wireless communication method of the present application may further include the following steps: during the stay of the station in the first time period or in the first time period, if the first data channel is not successfully accessed, the station switches To the common control channel.
  • the station switches to the common control channel.
  • the length of stay is less than or equal to the length of the first time period
  • the start time of the length of stay may be the start time of the first time period or a time after the start time of the first time period.
  • the length of stay may be preset or indicated by the first access point.
  • the first transmission allocation frame may also include length of stay indication information, and the length of stay indication information is used to indicate the length of stay. Similar to the above time information, the length of stay can include the start time and duration.
  • the station switches to the common control channel. That is, in this implementation manner, the first access point does not need to indicate the length of stay to the first station; or, the length of stay indicated by the first access point is equal to the first length of time.
  • the unsuccessful access to the first data channel involved in the foregoing two implementation manners may include that the first data channel is not competed for, or the data sent by the first access point is not received.
  • the station switches to the common control channel, so that the station can promptly communicate when the communication fails. Switch to the common control channel to improve the reliability of communication between the access point and the station, and to avoid the station's unsuccessful communication and long waiting time causing large transmission delay.
  • Fig. 6 is a flowchart of another wireless communication method according to an embodiment of this application. As shown in Fig. 6, the application scenario of this embodiment is uplink transmission.
  • the method of this embodiment may include:
  • Step 201 The station sends a transmission demand frame to the first access point on the common control channel.
  • the first access point receives the transmission demand frame sent by the station on the common control channel.
  • the transmission demand frame is used to report the uplink transmission demand of the station.
  • the uplink transmission requirement may include information such as the size of the data to be transmitted and the transmission priority.
  • the first access point may determine the data channel and time period for communicating with the station according to the transmission demand frame.
  • Step 202 The first access point sends a first transmission allocation frame to the station on the common control channel.
  • the station receives the first transmission allocation frame sent by the first access point on the common control channel.
  • Step 203 The station performs uplink data transmission with the first access point in the first time period of the first data channel.
  • step 202 and step 203 For specific explanations of step 202 and step 203, reference may be made to the explanations of step 101 and step 202 in the embodiment shown in FIG. 2, which will not be repeated here.
  • an achievable way of step 202 is: after receiving the transmission demand frame, the first access point sends the first transmission allocation frame to the station on the common control channel.
  • the first access point sends an acknowledgement (ACK) to the first station after receiving the transmission demand frame, and after a preset time, sends the first access point to the station on the common control channel.
  • ACK acknowledgement
  • the station may also send an acknowledgement (ACK) to the first access point after correctly receiving the first transmission allocation frame.
  • ACK acknowledgement
  • the embodiment of this application describes the uplink transmission scenario.
  • the first access point determines the transmission requirement, for example, according to the first access point needs to send to the station The size or priority of the data determines the transmission requirement; and in step 203, the first access point sends the downlink data to the station in the first time period of the first data channel.
  • the station sends the transmission demand frame to the first access point on the common control channel, and the first access point sends the first transmission allocation frame to the station on the common control channel.
  • the station is in the first time of the first data channel.
  • the segment communicates with the first access point, so that the first access point appropriately allocates the data channel and time period for communication with the station according to the transmission requirements of the station, thereby improving data transmission efficiency and channel utilization.
  • the transmission demand frame may include traffic information, and the business information is used to indicate the information of the business data expected to be transmitted.
  • the service information may include at least one of aperiodic service indication information and periodic service indication information.
  • the aperiodic service indication information is used to indicate that there is data of at least one service type to be sent.
  • the periodic service indication information is used to indicate that at least one communication stream needs to be sent.
  • the non-periodic service indication information may include service type indication information and the size of data to be transmitted of at least one service type, the service type indication information is used to indicate at least one service type, and the periodic service information may include communication flow Indication information and attribute information of at least one communication flow, where the communication flow indication information is used to indicate at least one communication flow.
  • the service type indication information may also be referred to as TID control information (Control field for TID bit map).
  • the service type indication information can be a binary bitmap. Each bit in the bitmap corresponds to a TID. A bit of 1 is used to indicate that there is a corresponding TID data transmission requirement, and a bit of 0 is used to indicate that there is no TID. Corresponding TID data transmission requirements.
  • the size of the to-be-transmitted data of at least one service type includes the size of the to-be-transmitted data of at least one TID, and the at least one TID is the TID corresponding to a bit in the binary bitmap, for example, the to-be-transmitted data of the at least one service type
  • the size of the transmitted data includes the buffer size of TIDn (Buffer size for TIDn) and the buffer size of TIDm (Buffer size for TIDm).
  • n and m are positive integers
  • the buffer size of TIDn (Buffer size for TIDn) is used
  • the buffer size for TIDm of this TIDm is used to indicate the buffer size of the TID corresponding to the mth bit
  • the specific values of n and m Related to the above binary bitmap. For example, if the service type indication information is 10001000, the size of the to-be-transmitted data of the at least one service type includes the buffer size of TID1 and the buffer size of TID5.
  • the communication flow indication information may also be referred to as TS control information (Control field for TS bit map).
  • the communication stream indication information can be a binary bit bitmap. Each bit in the bitmap corresponds to one (Traffic stream, TS). A bit of 1 is used to indicate the transmission requirement of the corresponding TS, and the bit is 0. Used to indicate that there is no corresponding TS transmission requirement.
  • the attribute information of at least one communication stream includes a communication specification (Traffic specification, TSPEC) of at least one TS, and the at least one TS is a TS corresponding to a bit of 1 in the binary bitmap, for example, the attribute of the at least one communication stream
  • TSPEC Transmission specification
  • the information includes the communication specification of TSi (TSPEC for TSi), ...
  • the communication specification of TSj (TSPEC for TSj), i and j are positive integers, and the communication specification of TSi is used to indicate the communication specification of TS corresponding to the i-th bit ,
  • the TSj communication specification is used to indicate the communication specification of the TS corresponding to the jth bit.
  • Communication specifications may include information such as service interval time, minimum rate, packet size, and maximum delay. For example, if the communication flow indication information is 10100, the attribute information of the at least one communication flow includes the communication specification of TS1 and the communication specification of TS3.
  • the various information carried in the above transmission demand frame can be carried in the corresponding field of the transmission demand frame.
  • FIG. 7A is a schematic diagram of a transmission demand frame according to an embodiment of the application.
  • the transmission allocation frame may include a frame control (Frame control) field, a duration (Duration) field, and a receiver address (Receiver Address, RA). ) Field, a transmitting address (Transmiter Address, TA) field, a service information (Traffic information) field, and a frame sequence check (FCS) field.
  • the traffic information (Traffic information) field is used to carry the above-mentioned service information, and its specific explanation can be referred to the above-mentioned embodiment, which will not be repeated here.
  • the duration (Duration) field is used to indicate the length of time occupied by the transmission demand frame.
  • the Receiver Address (RA) field may include the address of the target receiving node, for example, the MAC address of the target receiving node. Taking the embodiment shown in FIG. 6 as an example, the RA field of the transmission request frame may include the MAC address of the first access point.
  • the transmitting address (Transmiter Address, TA) field may include the address of the transmitting node, for example, the MAC address of the transmitting node. Taking the embodiment shown in FIG. 6 as an example, the TA field of the transmission demand frame may include the MAC address of the first station.
  • the frame sequence check (FCS) field is used by the receiving end to use the frame sequence check (FCS) to determine whether the transmission request frame is received correctly
  • FIG. 7B is a schematic diagram of the service information field of the transmission demand frame shown in FIG. 7A according to an embodiment of the application.
  • the service information field may include a TID control subfield (Control field for TID bit map) and TS control Subfield (Control field for TS bit map), TIDn buffer size (Buffer size for TIDn) subfield, ...TIDm buffer size (Buffer size for TIDm) subfield, TSi communication specification (TSPEC for TSi) Sub-field,...TSj's communication specification (TSPEC for TSj) sub-field.
  • TID control subfield Control field for TID bit map
  • TS control subfield Control field for TS bit map
  • TIDn buffer size Buffer size for TIDn
  • ... TIDm buffer size Buffer size for TIDm
  • TSi communication specification TSPEC for TSi
  • TSj communication specification TSPEC for TSj
  • the first access point that receives the transmission demand frame through the common control channel learns the data transmission demand of the station, and then determines the first data channel based on the data transmission demand. In a period of time, corresponding data communication is carried out with the station, so as to meet the transmission demand of the station's uplink data.
  • each field information of the above transmission demand frame is an example, and the sequence is not limited by this.
  • the transmission allocation frame may also include other field information, which can be flexibly set according to requirements.
  • the first transmission allocation frame in the foregoing embodiment is used to instruct a station to communicate with the first access point in the first time period of the first data channel.
  • the first transmission allocation frame is used to Each station allocates the first time period of the multiple first data channels, so that multiple stations communicate with the first access point on the multiple first data channels.
  • FIG. 8 is a flowchart of another wireless communication method according to an embodiment of this application.
  • this embodiment relates to a first access point and multiple stations, and the number of the multiple stations may be two or three. Or more.
  • the first access point may be AP1 as shown in FIG. 1
  • the multiple stations may be STA1 and STA2 as shown in FIG. 1.
  • the method in this embodiment may include:
  • Step 301 The first access point sends a first transmission allocation frame to multiple stations on a common control channel.
  • the multiple stations receive the first transmission allocation frame sent by the first access point on the common control channel.
  • the first transmission allocation frame is used to instruct multiple stations to communicate with the first access point in at least one first time period of at least one first data channel.
  • the first access point may allocate a data channel to communicate with the multiple stations and a time period on the data channel through the first transmission allocation frame.
  • At least one first data channel is explained.
  • the number of the at least one first data channel is two or more, that is, at least two first data channels, and any two of the at least two first data channels
  • the first data channels can be the same or different.
  • the first time periods can be the same or different.
  • AP1 sends a first transmission allocation frame to STA1 and STA2 on the common control channel as shown in FIG. 3.
  • the first transmission allocation frame may be used to indicate that STA1 is in the data channel 1 (Data CH1) communication time period 12.
  • the communication may include uplink communication or downlink communication.
  • the first access point can determine the position and length of at least one data channel and/or at least one time period on the time axis according to its own transmission needs, or can determine at least one data channel and/or at least one data channel according to the transmission needs of each station
  • the position and length of the time period on the time axis of course, it is understandable that other information can also be combined to determine the position and length of at least one data channel and/or at least one time period on the time axis, thereby generating the first transmission allocation frame .
  • the first access point may determine the first transmission allocation frame according to the data to be transmitted and the target receiving end. For example, the first access point may determine the size of the data to be transmitted, the transmission priority, the target receiving end and other information, Determine the position and length of at least one data channel and/or at least one time period on the time axis. For example, two first data channels (data channel 1 and data channel 2 as described above) and two first time periods (a communication time period 12 and communication time period 22 as described above) are determined, that is, it is determined that STA1 is on data channel 1.
  • the communication period 12 of the (Data CH1) communicates with AP1, and the STA2 communicates with the AP1 in the communication period 22 of the data channel 2 (Data CH2).
  • the first access point may also determine the communication time period of STA1 and the communication time period of STA2 in combination with the channel quality of each data channel.
  • each station may send transmission requirements to the first access point, and the first access point may determine the position of at least one data channel and/or at least one time period on the time axis according to the transmission requirements sent by each station. length.
  • the transmission requirement may include information such as the size of the data to be transmitted and the transmission priority.
  • two first data channels data channel 1 and data channel 2 as described above
  • two first time periods a communication time period 12 and communication time period 22 as described above
  • the communication period 12 of the (Data CH1) communicates with AP1
  • the STA2 communicates with the AP1 in the communication period 22 of the data channel 2 (Data CH2).
  • the first access point may also determine the communication time period of STA1 and the communication time period of STA2 in combination with the channel quality of each data channel.
  • the principle used by the first access point to determine the communication time period of the data channel of STA1 may be the same as or different from the principle used to determine the communication time period of the data channel of STA2.
  • Step 302 The first access point communicates with multiple stations in at least one first time period of at least one first data channel.
  • the first access point may communicate with STA1 in the data channel 1 (Data CH1) communication time period 12, and communicate with the STA2 in the data channel 2 (Data CH2) communication time period 22.
  • Data CH1 data channel 1
  • Data CH2 data channel 2
  • the first access point sends a first transmission allocation frame to multiple stations on a common control channel, and the first transmission allocation frame is used to indicate that the multiple stations are in at least one first data channel of at least one first data channel.
  • Communicate with the first access point in the time period and each station communicates with the first access point in the first time period of the corresponding first data channel, thereby sending the first transmission allocation frame on the common control channel to indicate multiple
  • the data channel and time period for communication between the station and the first access point realizes the separation of control and data transmission on different channels, reduces the heavy dependence on the main channel, and can improve channel utilization.
  • the first transmission allocation frame may include at least one channel allocation information, and the at least one channel allocation information may include channel allocation information 1 (Allocation 1), ... , Channel allocation information n (Allocation n), n takes any positive integer.
  • each channel allocation information corresponds to a first time period of a first data channel
  • each channel allocation information includes channel information (Channel information), time information (Time information), and site information.
  • the channel information Used to indicate a first data channel the time information is used to indicate a first time period
  • the station information is used to indicate at least one station that communicates with the first access point in the first time period of the first data channel.
  • the first transmission allocation frame may include two channel allocation information, namely channel allocation information 1 (Allocation 1) and channel allocation information 2 (Allocation 2).
  • Channel allocation information 1 (Allocation 1) corresponds to the communication time period 12 of the data channel (Data CH1).
  • the channel information in the channel allocation information 1 (Allocation 1) is used to indicate the data channel (Data CH1), and the channel allocation information 1
  • the time information in (Allocation 1) is used to indicate the communication time period 12, and the station information in the channel allocation information 1 (Allocation 1) is used to indicate STA1.
  • Channel allocation information 2 corresponds to the communication time period 22 of the data channel (Data CH2)
  • the channel information in the channel allocation information 2 is used to indicate the data channel (Data CH2)
  • the channel allocation information 2 The time information in (Allocation 2) is used to indicate the communication time period 22, and the station information in the channel allocation information 2 (Allocation 2) is used to indicate STA2.
  • Each channel information can include at least one of an operating class (operating class), a band identifier (band ID), or a channel number (channel index), and each time information (Time information) can include a start time
  • operating class operating class
  • band ID band identifier
  • channel index channel index
  • time information time information
  • start time start time
  • duration duration
  • the first transmission allocation frame may further include uplink and downlink indication information and traffic limitation information (Traffic Limitation Information).
  • the station information in each channel allocation information may include the number of STAs (Number of STAs) and the STA's association ID (Association ID, AID) list (AID list of STAs).
  • the number of STAs is used to indicate the number of STAs communicating with the first access point in the first time period of the corresponding first data channel
  • the AID list of the STA is used to indicate the number of STAs in the first time period of the corresponding first data channel.
  • FIG. 9A is a schematic diagram of another transmission allocation frame according to an embodiment of the application.
  • the transmission allocation frame may include a frame control (Frame control) field, a duration (Duration) field, and a receiver address (Receiver Address, RA) field, Transmiter Address (TA) field, Channel information (Channel information) field, Number of Allocation (Number of Allocation) field, Channel Allocation Information 1 (Allocation 1) field, ..., Channel Allocation Information n (Allocation) n) field and frame sequence check (FCS) field.
  • Frame control Frame control
  • RA Receiveiver Address
  • TA Receiver Address
  • Channel information Channel information
  • Number of Allocation Number of Allocation
  • Channel Allocation Information 1 Allocation 1
  • n Channel Allocation Information n
  • FCS frame sequence check
  • the channel allocation information 1 (Allocation 1) field is used to carry the corresponding channel allocation information
  • the channel allocation information n (Allocation) field is used to carry the corresponding channel allocation information
  • the allocation number field is used to indicate the number n of channel allocation information.
  • the duration (Duration) field is used to indicate the length of time occupied by the transmission allocation frame.
  • the Receiver Address (RA) field may include a broadcast address.
  • the transmitting address (Transmiter Address, TA) field may include the address of the transmitting node, for example, the MAC address of the transmitting node. Taking the embodiment shown in FIG. 8 as an example, the TA of the first transmission allocation frame may include the MAC address of the first access point.
  • the frame sequence check (FCS) field is used by the receiving end to use the frame sequence check (FCS) to determine whether the transmission allocation frame is received correctly.
  • each station may send an acknowledgement (ACK) to the first access point after correctly receiving the transmission allocation frame.
  • ACK acknowledgement
  • transmission allocation frame shown in FIG. 9A can also be applied to one station.
  • the channel allocation information field may include a channel information (Channel information) subfield and a time information subfield , Service restriction information (Traffic limitation information) subfield, STA number (Number of STAs) subfield, and STA AID list (AID list of STAs) subfield. That is, multiple STAs can be allocated the same time period of the same data channel, or multiple STAs can be allocated multiple time periods of multiple data channels.
  • each of the foregoing subfields is used to carry corresponding information, for example, the foregoing channel information (Channel information), time information, traffic limitation information (Traffic limitation information), the number of STAs (Number of STAs), and the STA's AID list (AID). list of STAs), for specific explanations, please refer to the above-mentioned embodiments, which will not be repeated here.
  • the transmission allocation frame is set to carry at least one channel allocation information, so that multiple stations that have received the transmission allocation frame through the common control channel are determined to be in at least one first time period of the at least one first data channel.
  • An access point communicates data of corresponding service types, thereby meeting the communication requirements of data of different service types.
  • each field information of the foregoing transmission allocation frame is an example, and the sequence is not limited by this.
  • the transmission allocation frame may also include other field information, which can be flexibly set according to requirements.
  • each channel allocation information corresponds to a first time period of the first data channel for a station to communicate with the first access point
  • each channel allocation information includes station information and channel information (Channel information) And time information (Time information)
  • site information is used to indicate a site that communicates with the first access point
  • channel information is used to indicate a first data channel corresponding to the site
  • time information is used to indicate a site corresponding to the site
  • the first transmission allocation frame may include two channel allocation information, namely channel allocation information 1 (Allocation 1) and channel allocation information 2 (Allocation 2).
  • Channel allocation information 1 (Allocation 1) corresponds to the communication time period 12 of the data channel (Data CH1) through which STA1 communicates with the first access point.
  • the channel allocation information 1 (Allocation 1) may include site information, channel information, and time information
  • the station information is used to indicate the STA1, the channel information is used to indicate the data channel (Data CH1), and the time information is used to indicate the communication time period 12.
  • Channel allocation information 2 (Allocation 2) corresponds to the communication time period 22 of the data channel (Data CH2) through which STA2 communicates with the first access point.
  • This channel allocation information 2 (Allocation 2) may include site information, channel information, and time information
  • the station information is used to indicate the STA2, the channel information is used to indicate the data channel (Data CH2), and the time information is used to indicate the communication time period 22.
  • Each channel information can include at least one of an operating class (operating class), a band identifier (band ID), or a channel number (channel index), and each time information (Time information) can include a start time
  • operating class operating class
  • band ID band identifier
  • channel index channel index
  • time information time information
  • start time start time
  • duration duration
  • the first transmission allocation frame may also include uplink and downlink indication information, and traffic limitation information (Traffic limitation information)
  • the station information in each channel allocation information may include the AID (AID of STA) of the STA.
  • the AID of the STA is used to indicate the corresponding STA.
  • FIG. 10 is a schematic diagram of the channel allocation information field of the transmission allocation frame shown in FIG. 9A according to an embodiment of the application.
  • the channel allocation information field can be the AID (AID of STA) subfield and channel information ( Channel information subfield, time information subfield, and traffic limitation information (Traffic limitation information) subfield.
  • each field is used to carry corresponding information, such as channel information (Channel information), time information, traffic limitation information (Traffic limitation information), and STA AID (AID of STA).
  • channel information Channel information
  • time information time information
  • traffic limitation information Traffic limitation information
  • STA AID AID of STA
  • each field information of the above channel allocation information is an example, and the sequence is not limited by this.
  • the channel allocation information may also include other field information, which can be flexibly set according to requirements.
  • the wireless communication method of the embodiment of the present application may further include the following steps: multiple first stations send transmission request frames to the first access point on the common control channel, The first access point receives transmission demand frames sent by multiple stations on the common control channel, and one transmission demand frame is used to report the uplink transmission demand of one station. The first access point generates the first transmission allocation frame according to the transmission demand frames sent by the multiple stations.
  • the transmission demand frame sent by each station may use the transmission demand frame described in FIG. 6 to FIG. 7A, and the specific explanation and description are omitted here.
  • the wireless communication method of the embodiment of the present application may further include the following steps: the first access point determines the data channel and time period for communicating with multiple stations according to its own transmission requirements, and then generates the first Transmission allocation frame.
  • FIG. 11 is a flowchart of another wireless communication method according to an embodiment of this application.
  • this embodiment relates to a first access point and a second access point.
  • the first access point may It is AP1 as shown in FIG. 1
  • the second access point may be AP2 as shown in FIG. 1.
  • the method in this embodiment may include:
  • Step 401 The first access point receives the third transmission allocation frame sent by the second access point on the common control channel.
  • the second access point sends the third transmission allocation frame on the common control channel. Since the first access point and the second access point share the common control channel, the first access point can receive the third transmission allocation The third transmission allocation frame is used to instruct the second station to communicate with the second access point in the second time period of the second data channel.
  • the third transmission allocation frame may use the transmission allocation frame described in FIG. 5 and FIG. 9A to FIG. 10, and the specific explanation and description thereof will not be repeated here.
  • Step 402 The first access point updates the network allocation vector (NAV) table according to the third transmission allocation frame.
  • NAV network allocation vector
  • the NAV table includes the correspondence between multiple sets of data channels and time periods.
  • a set of data channels and time periods is used to indicate that a time period of a data channel is occupied.
  • the NAV table may also include station information, which corresponds to a set of data channels and time periods, and is used to indicate stations occupying a data channel for a time period.
  • the updated NAV table includes channel information for indicating the second data channel and time information for indicating the second time period.
  • An implementable way of updating the NAV table according to the third transmission allocation frame is to add the data channel and time period indicated by the third transmission allocation frame to the original NAV table.
  • a row in the NAV table represents the correspondence between a set of data channels and time periods, and a row in the NAV table includes channel information, the start time and the duration of the time period.
  • a row in the NAV table includes: channel information, start time and end time of the time period.
  • a row in the NAV table includes: channel information, end time and duration of the time period.
  • One row of the NAV table in any of the foregoing examples may also include site information, which indicates a site that is allocated to be able to communicate on the data channel, for example, the holder.
  • the site information may be the MAC address of the site, and when broadcast data is transmitted in the time period of the data channel, the site information may be the broadcast address.
  • a schematic of a NAV table is shown in Table 2 below.
  • the NAV table includes multiple rows, and each row records that a time period of a data channel is occupied by at least one station.
  • data channel 1 (CH1) is occupied by STA1 from t1 to t1+T1
  • data channel 2 (CH1) is occupied by STA2 from t2 to t2+T2.
  • the first access point receives the third transmission allocation frame.
  • the third transmission allocation frame is used to instruct STA3 to communicate with the first access point from time t3 to t3+T3 on data channel 1 (CH1).
  • CH1 data channel 1
  • the access point communicates.
  • the first access point updates the NAV table shown in Table 2 to obtain the NAV table shown in Table 3 below.
  • the foregoing embodiment uses the first access point as an example for description. It is understandable that the second access point can also maintain its own NAV table in the same manner.
  • Table 2 and Table 3 may also be a broadcast address, and the above MAC address is only an example.
  • the wireless communication method of this application only performs CCA listening, and does not perform backoff during initial access. At the beginning of the scheduling period (the first time period as described above) or later, if the CCA is satisfied, the result is idle. Then the sender (access point or station) directly sends. However, when transmission errors occur, back-off operations are performed according to existing standards.
  • Table 3 shows the comparison between the channel access method of this solution and the existing PSMP and RAW access methods introduced by IEEE 802.11ah.
  • the access point can receive the transmission demand frame sent by the station in the first phase of the common control channel, and send the transmission allocation frame to the station in the second phase of the common control channel to instruct the station Communicate with the access point in the time slot next to the time slot in the second phase.
  • FIG. 12 is a schematic diagram of channel time slotting according to an embodiment of the application. As shown in FIG. 12, the common control channel includes multiple time slots, and each time slot includes the first phase (Phase I) and Phase II (Phase II).
  • the first stage is used to receive a transmission demand frame sent by at least one station, and the second stage is used to send a first transmission allocation frame to at least one station.
  • At least one first time period indicated by the first transmission allocation frame is the first The time period in the next time slot of the time slot where the second phase is located.
  • the first transmission allocation frame may allocate a data channel and time period for communication to a station, and its frame structure may adopt the frame structure shown in FIG. 5 above.
  • the first transmission allocation frame may also allocate data channels and time for communication to multiple stations, and its frame structure may adopt the frame structure shown in FIG. 9A-FIG. 9B and FIG. 10 above.
  • time synchronization and time slot division can be realized through a beacon (Becon) frame.
  • Becon Becon
  • the access point in the first stage 2 shown in Figure 12, in the first stage 2, on the one hand, can collect transmission demand frames sent by each station; on the other hand, the access point and the station follow the previous time.
  • the first transmission allocation frame sent in the second phase 1 of the slot communicates on the data channel.
  • communication can be performed in the first phase 2 and the second phase 2 of the data channel 1 (Data CH1).
  • the station is prohibited from performing uplink EDCA, and the access point sends the first transmission allocation frame to the station on the common control channel in the second stage 2 to realize data Channel transmission resource allocation.
  • each time slot is set to include the first phase (PhaseI) and the second phase (PhaseII).
  • the first stage is used to receive a transmission demand frame sent by at least one station, and the second stage is used to send a first transmission allocation frame to at least one station.
  • At least one first time period indicated by the first transmission allocation frame is the first The time period in the next time slot of the time slot where the second stage is located, divides the time of the common control channel into each time slot, the time granularity is smaller, and the flexibility is higher, avoiding a transmission occupying the common control channel for a long time , Resulting in high-priority services cannot be transmitted in time, reducing the delay of service transmission.
  • FIG. 13A is a schematic diagram of a transmission timing of a transmission allocation frame according to an embodiment of the application.
  • the first access point transmits a transmission allocation frame in a transmission window on a common control channel, and the transmission allocation frame may be The transmission allocation frame involved in any of the above embodiments.
  • the duration of the sending window is less than the first preset duration T, and the end point of the sending window is the starting point of the first time period allocated for transmitting the allocation frame.
  • the end point of the sending window is the start point of the time period.
  • the end point of the sending window is the start point of the time period with the farthest starting point among the multiple time periods.
  • the first preset duration T can be preset, and T is a positive number, and its size can be flexibly set according to requirements.
  • FIG. 13B is a schematic diagram of another transmission timing of a transmission allocation frame according to an embodiment of the application. As shown in FIG. 13B, the first access point transmits the first transmission allocation frame within the transmission window on the common control channel.
  • the duration of the sending window is less than the second preset duration L
  • the end point of the sending window is the end point of the allocated time period
  • the allocated time period is the first time that the first access point sends before sending the first transmission allocation frame 2. The time period for communication indicated by the transmission allocation frame.
  • An implementation manner, as shown in FIG. 13B, is to set different sending windows for different data channels, for example, the allocation window of data channel 1 and the allocation window of data channel 2, and the time length of the allocation window of data channel 1 is less than that of the first data channel. 2.
  • the preset duration L, the end point of the allocation window of the data channel 1 is the end point of the allocated time period of the data channel 1.
  • the duration of the allocation window of the data channel 2 is less than the second preset duration L, and the end point of the allocation window of the data channel 2 is the end point of the allocated time period of the data channel 2.
  • the time period allocated by the first transmission allocation frame for communication and the transmission time interval of the first transmission allocation frame can be within a preset time length, making communication more flexible , Avoiding a certain transmission occupying the common control channel for a long time, causing high priority services to be unable to be transmitted in time, reducing the delay of service transmission.
  • the wireless communication method according to the embodiment of the present application is described in detail above, and the wireless communication device according to the embodiment of the present application will be described below.
  • the embodiments of the present application describe in detail the schematic structure of the wireless communication device.
  • FIG. 14 shows a schematic block diagram of a wireless communication device 1400 according to an embodiment of the present application.
  • the apparatus 1400 in the embodiment of the present application may be the site in the foregoing method embodiment, or may be one or more chips in the site.
  • the apparatus 1400 may be used to perform part or all of the functions of the station in the foregoing method embodiment.
  • the device 1400 may include a transceiver module 1410 and a processing module 1420.
  • the device 1400 may further include a storage module 1430.
  • the transceiver module 1410 can be used to receive the first transmission allocation frame from the first access point in step S101 in the foregoing method embodiment, or to perform step S201 and receive the first access point from the first access point in step S201. Or is used to receive the first transmission allocation frame from the first access point in step S301.
  • the processing module 1420 may be used to perform step S102 in the foregoing method embodiment, or used to perform step S203, or used to perform step S302.
  • the device 1400 may also be configured as a general-purpose processing system, for example, commonly referred to as a chip.
  • the processing module 1420 may include: one or more processors that provide processing functions; the transceiver module 1410 may be, for example, an input/output interface, Pins or circuits, etc., the input/output interface can be used for information interaction between the chip system and the outside world. For example, the input/output interface can output the transmission demand frame of the site to other modules outside the chip for processing.
  • the processing module can execute the computer-executable instructions stored in the storage module to implement the functions of the site in the foregoing method embodiment.
  • the storage module 1430 optionally included in the device 1400 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 1430 may also be a storage unit located outside the chip in the site.
  • ROM read-only memory
  • RAM random access memory
  • FIG. 15 shows a schematic block diagram of another wireless communication device 1500 according to an embodiment of the present application.
  • the apparatus 1500 in this embodiment of the present application may be a station in the foregoing method embodiment, and the apparatus 1500 may be used to perform part or all of the functions of the station in the foregoing method embodiment.
  • the device 1500 may include a processor 1510, a baseband circuit 1530, a radio frequency circuit 1540, and an antenna 1550.
  • the device 1500 may further include a memory 1520.
  • the components of the device 1500 are coupled together via a bus 1560, where the bus system 1560 includes a power bus, a control bus, and a status signal bus in addition to a data bus.
  • various buses are marked as the bus system 1560 in the figure.
  • the processor 1510 may be used to control the site, to perform the processing performed by the site in the foregoing embodiment, and may perform the processing procedure related to the site in the foregoing method embodiment and/or other procedures used in the technology described in this application. It can also run the operating system, manage the bus, and execute the programs or instructions stored in the memory.
  • the baseband circuit 1530, the radio frequency circuit 1540, and the antenna 1550 may be used to support the sending and receiving of information between the station and the access point involved in the foregoing embodiment, so as to support wireless communication between the station and the access point.
  • the first transmission allocation frame sent from the access point is received via the antenna 1550, filtered, amplified, down-converted, and digitized by the radio frequency circuit 1540, and then decoded by the baseband circuit 1530, and the data is unpacked according to the protocol.
  • the processor 1510 After the baseband processing, the processor 1510 performs processing to restore the service data and signaling information sent by the access point; in another example, the transmission demand frame used to indicate the transmission demand of the station in the station can be processed by the processor 1510,
  • the radio frequency circuit 1540 After the baseband circuit 1530 performs baseband processing such as encapsulation according to the protocol and encoding, the radio frequency circuit 1540 further performs radio frequency processing such as analog conversion, filtering, amplification, and upconversion, and transmits it through the antenna 1550.
  • the memory 1520 may be used to store program codes and data of the site, and the memory 1520 may be the storage module 1430 in FIG. 14. It is understandable that the baseband circuit 1530, the radio frequency circuit 1540, and the antenna 1550 can also be used to support the site to communicate with other network entities, for example, to support the site to communicate with the network element on the core network side.
  • the memory 1520 in FIG. 15 is shown as being separated from the processor 1510. However, those skilled in the art can easily understand that the memory 1520 or any part thereof may be located outside the wireless communication device 1500.
  • the memory 1520 may include a transmission line and/or a computer product separated from the wireless node, and these media may be accessed by the processor 1510 through the bus interface 1560.
  • the memory 1520 or any part thereof may be integrated into the processor 1510, for example, may be a cache and/or a general register.
  • Figure 15 only shows a simplified design of the site.
  • a site can include any number of transmitters, receivers, processors, memories, etc., and all sites that can implement the application are within the protection scope of the application.
  • the wireless communication device can also be implemented using one or more field-programmable gate arrays (FPGA), programmable logic devices (PLD), Controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.
  • FPGA field-programmable gate arrays
  • PLD programmable logic devices
  • Controllers state machines
  • gate logic discrete hardware components
  • any other suitable circuits any combination of circuits capable of performing the various functions described throughout this application.
  • an embodiment of the present application further provides a computer storage medium, which can store a program instruction for indicating any of the above methods, so that the processor executes the program instruction to implement the above method embodiment Involving the methods and functions of the site.
  • FIG. 16 shows a schematic block diagram of a wireless communication device 1600 according to an embodiment of the present application.
  • the apparatus 1600 in the embodiment of the present application may be the access point in the foregoing method embodiment, or may be one or more chips in the access point.
  • the apparatus 1600 may be used to perform part or all of the functions of the access point in the foregoing method embodiments.
  • the apparatus 1600 may include a processing module 1610 and a transceiver module 1620.
  • the apparatus 1600 may also include a storage module 1630.
  • the transceiver module 1620 can be used for the access point to send the first transmission allocation frame of step S101 in the foregoing method embodiment, or for receiving the transmission request frame from the station in step S201 and sending the first transmission of step S202.
  • the allocation frame is either used to send the first transmission allocation frame in step S301, or used to receive the third transmission allocation frame from the second access point in step S401;
  • the processing module 1610 may be used to perform step S102 in the foregoing method embodiment, or to perform step S203, or to perform step S302, or to perform step S402;
  • the device 1600 may also be configured as a general-purpose processing system, for example, commonly referred to as a chip.
  • the processing module 1610 may include: one or more processors that provide processing functions; the transceiver module may be, for example, an input/output interface, a tube
  • the input/output interface can be used to exchange information between the chip system and the outside world.
  • the input/output interface can output the first transmission allocation frame to other modules outside the chip for processing.
  • the one or more processors can execute computer-executable instructions stored in the storage module to implement the function of the access point in the foregoing method embodiment.
  • the storage module 1630 optionally included in the apparatus 1600 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 1630 may also be a storage unit located outside the chip in the access point. Units, such as read-only memory (read-only memory, ROM for short) or other types of static storage devices that can store static information and instructions, random access memory (RAM for short), etc.
  • read-only memory read-only memory
  • ROM read-only memory
  • RAM random access memory
  • FIG. 17 shows a schematic block diagram of another wireless communication device 1700 according to an embodiment of the present application.
  • the apparatus 1700 in the embodiment of the present application may be the access point in the foregoing method embodiment, and the apparatus 1700 may be configured to perform part or all of the functions of the access point in the foregoing method embodiment.
  • the device 1700 may include a processor 1710, a baseband circuit 1730, a radio frequency circuit 1740, and an antenna 1750.
  • the device 1700 may further include a memory 1720.
  • the various components of the device 7800 are coupled together via a bus 1760.
  • the bus system 1760 also includes a power bus, a control bus, and a status signal bus. However, for clear description, various buses are marked as the bus system 1760 in the figure.
  • the processor 1710 may be used to control the access point, to execute the processing performed by the access point in the above-mentioned embodiment, to execute the processing procedure involving the access point in the above-mentioned method embodiment and/or to be used in this application.
  • Other processes of the described technology can also run an operating system, manage the bus, and can execute programs or instructions stored in the memory.
  • the baseband circuit 1730, the radio frequency circuit 1740, and the antenna 1750 may be used to support the sending and receiving of information between the access point and the stations involved in the foregoing embodiments, so as to support wireless communication between the access point and the stations.
  • the transmission demand frame sent from the station is received via the antenna 1750, filtered, amplified, down-converted, and digitized by the radio frequency circuit, and then decoded by the baseband circuit, and then decapsulated data according to the protocol.
  • the processor 1710 performs processing to restore the service data and signaling information sent by the station; in another example, the first transmission allocation frame of the access point can be processed by the processor 1710, and the baseband circuit 1730 performs encapsulation according to the protocol, encoding, etc.
  • the radio frequency circuit 1740 After the radio frequency circuit 1740 performs analog conversion, filtering, amplification, and up-conversion, the radio frequency circuit 1740 transmits it through the antenna 1750.
  • the memory 1720 can be used to store the program code and data of the access point.
  • the memory 1720 can be shown in Figure 16.
  • the storage module 1630 It can be understood that the baseband circuit 1730, the radio frequency circuit 1740, and the antenna 1750 may also be used to support the access point to communicate with other network entities, for example, to support the access point to communicate with other access points.
  • Figure 17 only shows the simplified design of the access point.
  • the access point can include any number of transmitters, receivers, processors, memories, etc., and all access points that can implement the present application are within the protection scope of the present invention.
  • the wireless communication device can also be implemented using one or more field-programmable gate arrays (FPGA), programmable logic devices (PLD), Controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.
  • FPGA field-programmable gate arrays
  • PLD programmable logic devices
  • Controllers state machines
  • gate logic discrete hardware components
  • any other suitable circuits any combination of circuits capable of performing the various functions described throughout this application.
  • an embodiment of the present application also provides a computer storage medium, which can store program instructions for indicating any of the above methods, so that the processor executes the program instructions to implement the above method embodiments.
  • the method and function of the access point are involved in.
  • the processor involved in the foregoing apparatus 1500 and apparatus 1700 may be a general-purpose processor, such as a general-purpose central processing unit (CPU), a network processor (NP for short), a microprocessor, etc., or may be a specific application integrated circuit ( application-specific integrated circBIt, ASIC for short), or one or more integrated circuits used to control the execution of the program of this application. It can also be a digital signal processor (Digital Signal Processor, DSP for short), a Field-Programmable Gate Array (FPGA for short), or other programmable logic devices, discrete gates or transistor logic devices, or discrete hardware components.
  • DSP Digital Signal Processor
  • FPGA Field-Programmable Gate Array
  • the controller/processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of DSP and microprocessor, and so on.
  • the processor usually executes logic and arithmetic operations based on program instructions stored in the memory.
  • the storage involved in the foregoing apparatus 1500 and apparatus 1700 may also store an operating system and other application programs.
  • the program may include program code, and the program code includes computer operation instructions.
  • the foregoing memory may be a read-only memory (read-only memory, ROM for short), other types of static storage devices that can store static information and instructions, random access memory (RAM for short), and storage Other types of dynamic storage devices for information and instructions, disk storage, etc.
  • the memory can be a combination of the storage types described above.
  • the foregoing computer-readable storage medium/memory may be in the processor, or external to the processor, or distributed on multiple entities including the processor or processing circuit.
  • the foregoing computer-readable storage medium/memory may be embodied in a computer program product.
  • the computer program product may include a computer-readable medium in packaging materials.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk).

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Abstract

本申请实施例提供一种无线通信方法和装置。本申请的无线通信方法，包括：第一接入点在公共控制信道上向站点发送第一传输分配帧，该第一传输分配帧用于指示该站点在第一数据信道的第一时间段与第一接入点进行通信，站点在第一数据信道的第一时间段与第一接入点进行通信。本申请实施例可以提升信道利用率。

Description

无线通信方法和装置
本申请要求于2019年4月17日提交中国专利局、申请号为201910310176.X、申请名称为无线通信方法和装置的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及无线通信技术，尤其涉及一种无线通信方法和装置。
背景技术
IEEE 802.11是现今无线局域网通用的标准，它是由国际电机电子工程学会(IEEE)所定义的无线网络通信的标准。IEEE 802.11采用带碰撞避免的载波侦听多址访问/冲突避免(Carrier Sense multiple Access/Collision Avoidance，CSMA/CA)协议来实现分布式信道接入。
在使用CSMA/CA时，如果站点侦听到信道处于繁忙状态，就会在信道再次处于空闲后，退避一段随机时长。这种在另一个站点占据信道后总是回退一段随机时长的做法避免了站点间的碰撞。但是随着站点数量越来越多和接入点(Access Point，AP)部署的越来越密集，CSMA/CA机制仍然会导致频繁的碰撞，导致非常严重的性能衰退。
与此同时，Wi-Fi标准中支持的带宽越来越大，但是始终只有一个20MHz主信道，管理、控制与数据帧传输均需要使用主信道。当20MHz主信道被占用时，其他次信道即使空闲也无法使用。大带宽传输下对主信道的严重依赖，使得信道利用率不高。
发明内容
本申请实施例提供一种无线通信方法和装置，以提升信道利用率。
第一方面，本申请实施例提供一种无线通信方法，该方法可以包括：站点在公共控制信道上接收第一接入点发送的第一传输分配帧，所述第一传输分配帧用于指示所述站点在第一数据信道的第一时间段与所述第一接入点进行通信；所述站点在所述第一数据信道的第一时间段与所述第一接入点进行通信。
在一些可能的实现方式中，所述第一传输分配帧包括信道信息和时间信息，所述信道信息用于指示所述第一数据信道，所述时间信息用于指示所述第一时间段。
在一些可能的实现方式中，该信道信息包括操作类别(operating class)、频段标识符(band ID)和主信道编号(Primary channel index)。
在一些可能的实现方式中，该信道信息还可以包括带宽信息和至少一个信道中心频率信息。该带宽信息和至少一个信道中心频率信息用于指示带宽大于20MHz的数据信道的带宽和中心频率。
在一些可能的实现方式中，该时间信息可以包括用于指示时间段的相关信息。
在一些可能的实现方式中，该第一传输分配帧还可以包括接收地址和发送地址。
在一些可能的实现方式中，所述第一传输分配帧还包括上下行指示信息，所述上下行指示信 息用于指示所述第一数据信道的第一时间段上进行通信的传输类型，所述传输类型包括下行传输、单用户上行传输、或者多用户上行传输。
在一些可能的实现方式中，所述第一传输分配帧还包括业务限制信息，所述业务限制信息用于指示所述第一数据信道的第一时间段上进行通信的业务类型。
在一些可能的实现方式中，该业务类型可以包括背景流、普通数据、语音或者视频。
在一些可能的实现方式中，所述方法还包括：所述站点在所述第一时间段内的逗留时长内或在所述第一时间段内，若未成功接入所述第一数据信道，则所述站点切换至所述公共控制信道。
在一些可能的实现方式中，所述第一传输分配帧还包括逗留时长指示信息，所述逗留时长指示信息用于指示所述逗留时长。
在一些可能的实现方式中，所述方法还包括：所述站点在公共控制信道上发送传输需求帧，所述传输需求帧用于上报所述站点的上行传输需求。
在一些可能的实现方式中，所述传输需求帧包括非周期性业务指示信息和周期性业务指示信息中至少一项，所述非周期性业务指示信息包括业务类型指示信息和至少一个业务类型的待传输数据的大小，所述业务类型指示信息用于指示所述至少一个业务类型，所述周期性业务的信息包括通信流指示信息和至少一个通信流的属性信息，所述通信流指示信息用于指示所述至少一个通信流。
在一些可能的实现方式中，所述公共控制信道包括多个时隙，每个时隙包括第一阶段和第二阶段，所述第一阶段用于所述站点在所述第一阶段发送所述传输需求帧，所述第二阶段用于所述站点接收所述第一传输分配帧，所述第一传输分配帧的第一时间段为所述第二阶段所在时隙的下一个时隙中的时间段。
第二方面，本申请实施例提供一种无线通信方法，该方法可以包括：第一接入点在公共控制信道上向第一站点发送第一传输分配帧，所述第一传输分配帧用于指示所述第一站点在至少一个第一数据信道的至少一个第一时间段与所述第一接入点进行通信；所述第一接入点在所述至少一个第一数据信道的至少一个第一时间段与所述第一站点进行通信。
在一些可能的实现方式中，所述方法还包括：所述第一接入点在所述公共控制信道上接收所述第一站点发送的传输需求帧，所述传输需求帧包括所述第一站点的上行传输需求；所述第一接入点根据所述第一站点发送的传输需求帧确定所述第一传输分配帧。
在一些可能的实现方式中，所述第一接入点在公共控制信道上向第一站点发送第一传输分配帧，包括：所述第一接入点在所述公共控制信道上的发送窗口内向所述第一站点发送所述第一传输分配帧；所述发送窗口的时长小于第一预设时长T，所述发送窗口的结束点为所述至少一个第一时间段中最远的第一时间段的起始点；或者，所述发送窗口的时长小于第二预设时长L，所述发送窗口的结束点为已分配时间段的结束点，所述已分配时间段为所述第一接入点在发送所述第一传输分配帧之前发送的第二传输分配帧所指示的进行通信的时间段。
在一些可能的实现方式中，所述公共控制信道包括多个时隙，每个时隙包括第一阶段和第二阶段，所述第一阶段用于接收所述第一站点发送的传输需求帧，所述第二阶段用于向所述第一站点发送所述第一传输分配帧，所述第一传输分配帧所指示的所述至少一个第一时间段包含于所述第二阶段所在时隙的下一个时隙中。
在一些可能的实现方式中，所述第一传输分配帧包括至少一个信道信息和至少一个时间信息，每个信道信息用于指示一个第一数据信道，每个时间信息用于指示一个第一时间段。
在一些可能的实现方式中，所述第一传输分配帧还包括上下行指示信息，所述上下行指示信息用于指示所述至少一个第一数据信道的至少一个第一时间段上进行通信的传输类型，所述传输类型包括下行传输、单用户上行传输、或者多用户上行传输。
在一些可能的实现方式中，所述第一传输分配帧还包括业务限制信息，所述业务限制信息用于指示所述第一站点在所述至少一个第一数据信道的至少一个第一时间段上与所述第一接入点进行通信的业务类型。
在一些可能的实现方式中，所述传输分配帧还包括逗留时长指示信息，所述逗留时长指示信息用于指示所述第一站点在未成功接入所述至少一个第一数据信道时的逗留时长。
在一些可能的实现方式中，所述方法还包括：所述第一接入点在所述公共控制信道上接收第二接入点发送的第三传输分配帧，所述第三传输分配帧用于指示第二站点在第二数据信道的第二时间段与所述第二接入点进行通信；所述第一接入点根据所述第三传输分配帧更新网络分配矢量NAV表格，所述更新后的NAV表格包括用于指示所述第二数据信道的信道信息，以及用于指示所述第二时间段的时间信息。
第三方面，提供了一种无线通信装置，该装置可以是站点，也可以是站点内的芯片。该装置具有实现上述各实施例涉及站点的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元。
在一种可能的设计中，当该装置为站点时，该装置可以包括：处理模块和收发模块，所述处理模块例如可以是处理器，所述收发模块例如可以是收发器，所述收发器可以包括射频电路和基带电路。
可选地，所述装置还可以包括存储单元，该存储单元例如可以是存储器。当该装置包括存储单元时，该存储单元用于存储计算机执行指令，该处理模块与该存储单元连接，该处理模块执行该存储单元存储的计算机执行指令，以使该站点执行上述涉及站点功能的无线通信方法。
在另一种可能的设计中，当该装置为站点内的芯片时，该芯片包括：处理模块和收发模块，所述处理模块例如可以是处理器，所述收发模块例如可以是该芯片上的输入/输出接口、管脚或电路等。可选的，该装置还可以包括存储单元，该处理模块可执行存储单元存储的计算机执行指令，以使该站点内的芯片执行上述任一方面涉及站点功能的无线通信方法。
可选地，所述存储单元为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是站点内的位于所述芯片外部的存储单元，如只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)等。
其中，上述任一处提到的处理器，可以是一个通用中央处理器(Central Processing Unit，简称CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，简称ASIC)，或一个或多个用于控制上述各方面信道资源协调分配的方法的程序执行的集成电路。
第四方面，本申请提供一种无线通信装置，该装置可以是接入点，也可以是接入点内的芯片。该装置具有实现上述各方面涉及接入点的各实施例的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元。
在一种可能的设计中，当该装置为接入点时，该装置可以包括：处理模块和收发模块，所述处理模块例如可以是处理器，所述收发模块例如可以是收发器，所述收发器包括射频电路，可选地，所述装置还包括存储单元，该存储单元例如可以是存储器。当装置包括存储单元时，该存储 单元用于存储计算机执行指令，该处理模块与该存储单元连接，该处理模块执行该存储单元存储的计算机执行指令，以使该装置执行上述任意一方面涉及接入点功能的无线通信方法。
在另一种可能的设计中，当该装置为接入点内的芯片时，该芯片包括：处理模块和收发模块，所述处理模块例如可以是处理器，所述收发模块例如可以是该芯片上的输入/输出接口、管脚或电路等。该处理模块可执行存储单元存储的计算机执行指令，以使该接入点内的芯片执行上述各方面涉及接入点功能的无线通信方法。可选地，所述存储单元为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是所述接入点内的位于所述芯片外部的存储单元，如ROM或可存储静态信息和指令的其他类型的静态存储设备，RAM等。
其中，上述任一处提到的处理器，可以是一个CPU，微处理器，ASIC，或一个或多个用于控制上述无线通信方法的程序执行的集成电路。
第五方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示执行上述第一方面至第二方面中的任一方面或其任意可能的实现方式中的方法的指令。
第六方面，提供了一种处理器，用于与存储器耦合，用于执行上述第一方面至第二方面中的任一方面或其任意可能的实现方式中的方法。
第七方面，提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面或其任意可能的实现方式中的方法。
第八方面，提供了一种通信系统，该系统包括：上述第一方面任一种可能的实现方式的站点和第二方面中任一种可能的实现方式的接入点。
本申请实施例的无线通信方法和装置，第一接入点在公共控制信道上向站点发送第一传输分配帧，该第一传输分配帧用于指示该站点在第一数据信道的第一时间段与第一接入点进行通信，站点在第一数据信道的第一时间段与第一接入点进行通信，从而在公共控制信道发送第一传输分配帧，以指示站点与第一接入点进行通信的数据信道和时间段，实现控制与数据传输分离在不同信道上，降低了对主信道的严重依赖，可以提升信道利用率。
附图说明
图1为本申请实施例的一种应用场景的示意图；
图2为本申请实施例一种无线通信方法的流程图；
图3为本申请实施例的公共控制信道和数据信道的示意图；
图4为本申请实施例的数据信道的示意图；
图5为本申请实施例的一种传输分配帧的示意图；
图6为本申请实施例另一种无线通信方法的流程图；
图7A为本申请实施例的一种传输需求帧的示意图；
图7B为本申请实施例的图7A所示的传输需求帧的业务信息字段的示意图；
图8为本申请实施例另一种无线通信方法的流程图；
图9A为本申请实施例的另一种传输分配帧的示意图；
图9B为本申请实施例的图9A所示的传输分配帧的信道分配信息字段的示意图；
图10为本申请实施例的图9A所示的传输分配帧的信道分配信息字段的示意图；
图11为本申请实施例另一种无线通信方法的流程图；
图12为本申请实施例的一种信道时隙化的示意图；
图13A为本申请实施例的一种传输分配帧的发送时机的示意图；
图13B为本申请实施例的另一种传输分配帧的发送时机的示意图；
图14为本申请实施例提供的一种无线通信装置的结构示意图；
图15为本申请实施例提供的另一种无线通信装置的结构示意图；
图16为本申请实施例提供的又一种无线通信装置的结构示意图；
图17为本申请实施例提供的又一种无线通信装置的结构示意图。
具体实施方式
本申请实施例涉及的“第一”、“第二”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
接入点(Access Point，AP)：基于802.11协议为站点(Station)提供无线接入功能，是无线和有线网络的桥接器，其也可以称之为“热点”。
本申请所涉及的接入点具有多带宽(Multi-band)多射频(Multi-radio)能力。接入点具有多套独立的802.11芯片，即每套802.11芯片可以包括独立的基带处理模块和射频模块，从而支持多射频(Multi-radio)能力。不同的射频模块可以工作在相同的带宽(band)上的不同信道上，也可以工作在不同的带宽(band)上。接入点的一个射频模块可以始终工作在一个公开控制信道上，其他射频模块可以在不同或者相同的带宽(band)上的不同信道上进行切换。
本申请所涉及的第一接入点、第二接入点、第三接入点等，第一、第二以及第三等用于区分不同的接入点。采用本申请的无线通信方法的接入点可以为如上所述的具有多带宽(Multi-band)多射频(Multi-radio)能力的接入点。
站点(Station，STA)：为具有无线通信功能的通信装置，例如为支持802.11协议的终端设备，可以通过接入点(Access Point，AP)接入互联网。该终端设备可以是个人电脑(Personal Computer，简称：PC)或者移动终端等，该移动终端也可以称为用户设备(User Equipment，简称：UE)、接入终端、用户单元、用户站、移动站、移动台、用户终端、终端、无线通信设备、用户代理或用户装置。移动终端可以是智能手机、蜂窝电话、无绳电话、平板电脑、个人数字处理(Personal Digital Assistant，简称：PDA)设备、具有无线通信功能的手持设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备等。
本申请所涉及的站点可以具有多带宽(Multi-band)单射频(single Radio)能力，或者是，也可以具有多带宽多射频的能力。
本申请所涉及的第一站点、第二站点、第三站点等，第一、第二以及第三等用于区分不同的站点。采用本申请的无线通信方法的站点可以为如上所述的具有多带宽(Multi-band)单射频(single Radio)能力的站点，或者为如上所述的具有多带宽多射频的能力的站点。
一个AP和一个或多个站点可以构成一个基本服务集(Basic Service Set，BSS)。基本服务集(Basic Service Set，BSS)：802.11协议标准规定无线局域网的最小构件就是BSS。
本申请的无线通信方法适用于一个BSS的WLAN场景中，还可以应用于由多个BSS所构成的WLAN场景，其中每一个BSS存在一个AP和至少一个STA。部分AP或者全部AP之间可以直接通信。
与背景技术部分所记载的控制与数据帧传输均使用主信道的方式不同，本申请将信道分为公共控制信道和至少一个数据信道，其中，公共控制信道用于传输控制信息，数据信道用于传输数据帧。其中，公共控制信道和至少一个数据信道可以在一个带宽(band)上，也可以在不同的带宽(band)上。公共 控制信道的具体位置可以是预设的，也可以是动态分配的。
示例性的，图1为本申请实施例的一种应用场景的示意图，如图1所示，该应用场景以两个BSS为例进行举例说明，其中，AP1和STA1、STA2组成BSS1，AP2和STA3组成BSS2。一个示例中，BB1和BB2可以共用一个公共控制信道、以及至少一个数据信道。STA1、STA2或STA3中任意一个或多个可以在公共控制信道上接收AP1或AP2发送的传输分配帧，从而在相应的数据信道的相应时间段与AP1或AP2进行通信。
本申请的无线通信方法的具体实现方式可以参见下述实施例的解释说明。
需要说明的是，本申请的无线通信方法既可以用于AP与AP之间，STA与STA之间，还可以用于AP和STA之间。本申请实施例以AP和STA之间通信为例进行说明，不构成限定。
还需要说明的是，本申请所涉及的“时间段”具体指时间轴上起始时间和结束时间确定的时间段。可以根据该时间段的起始时间和时长、或者结束时间和时长、或者起始时间和结束时间确定该时间段在时间轴的位置。
图2为本申请实施例一种无线通信方法的流程图，如图2所示，本实施例涉及第一接入点和站点，举例而言，该第一接入点可以是如图1所示的AP1，该站点可以是如图1所示的STA1，本实施例的方法可以包括：
步骤101、第一接入点在公共控制信道上向站点发送第一传输分配帧。
站点在公共控制信道上接收第一接入点发送的第一传输分配帧。
该第一传输分配帧用于指示该站点在第一数据信道的第一时间段与第一接入点进行通信。该第一时间段可以包括一个或多个时间单元(time unit)，其具体可以根据需求进行灵活设置。
该站点在第一数据信道的第一时间段与第一接入点进行通信，可以包括该站点在第一数据信道的第一时间段与第一接入点进行下行数据传输，或者，该站点在第一数据信道的第一时间段与第一接入点进行上行数据传输。
第一接入点可以根据自身的传输需要确定第一数据信道和/或第一时间段在时间轴上的位置、长度，也可以根据第一站点的传输需求确定第一数据信道和/或第一时间段在时间轴上的位置、长度，当然可以理解的，还可以结合其他信息确定第一数据信道和/或第一时间段在时间轴上的位置、长度，进而生成该第一传输分配帧。
一个示例中，对于下行传输，第一接入点可以根据待传输数据确定第一数据信道和/或第一时间段在时间轴上的位置、长度，例如，第一接入点可以根据待传输数据的大小、传输优先级等信息确定第一数据信道和/或第一时间段在时间轴上的位置、长度。在一些实施例中，第一接入点还可以结合各个数据信道的信道质量综合确定第一数据信道和/或第一时间段在时间轴上的位置、长度。
一个示例中，对于上行传输，第一站点可以向第一接入点发送传输需求，第一接入点可以根据第一站点发送的传输需求确定第一数据信道和/或第一时间段在时间轴上的位置、长度。例如，该传输需求可以包括待传输数据的大小、传输优先级等信息。在一些实施例中，第一接入点还可以结合各个数据信道的信道质量综合确定第一数据信道和/或第一时间段在时间轴上的位置、长度。
示例性的，第一接入点可以在信标(Beacon)中携带一个公共控制信道切换的元素(element)，该元素用于使得站点切换至公共控制信道上，以接收第一接入点发送的上述第一传输分配帧。
步骤102、站点在第一数据信道的第一时间段与第一接入点进行通信。
站点在该第一时间段切换至该第一传输分配帧所指示的第一数据信道上与第一接入点进行通信。该 通信可以包括上行传输或下行传输。
对于下行传输，可选的，站点在第一数据信道的第一时间段接收第一接入点发送的数据。
对于上行传输，可选的，站点在第一数据信道的第一时间段向第一接入点发送数据。
本实施例，第一接入点在公共控制信道上向站点发送第一传输分配帧，该第一传输分配帧用于指示该站点在第一数据信道的第一时间段与第一接入点进行通信，站点在第一数据信道的第一时间段与第一接入点进行通信，从而在公共控制信道发送第一传输分配帧，以指示站点与第一接入点进行通信的数据信道和时间段，实现控制与数据传输分离在不同信道上，降低了对主信道的严重依赖，可以提升信道利用率。
以一个具体的示例对图2所示实施例进行举例说明，图3为本申请实施例的公共控制信道和数据信道的示意图，如图3所示，示例性的，一个公共控制信道和两个数据信道分别为不同的信道，AP在公共控制信道(Control CH)上发送传输分配帧1，该传输分配帧1用于指示STA在数据信道1(Data CH1)通信时间段12与AP进行通信，AP在公共控制信道(Control CH)上发送传输分配帧2，该传输分配帧2用于指示STA在数据信道2(Data CH2)通信时间段23与AP进行通信。
在进行上行传输时，STA还可以在公共控制信道(Control CH)向AP发送传输需求帧，以请求与AP进行通信，例如，如图3所示，在AP向STA发送信道分配帧2之前，STA在公共控制信道(Control CH)上向AP发送传输需求帧2。
由此可见，本申请的公共控制信道可以用于传输分配帧和/或传输需求帧。而数据信道可以用于按照传输分配帧的指示在相应时间段进行数据传输。
一种可实现方式，该第一传输分配帧可以包括信道信息(Channel information)和时间信息(Time information)，该信道信息用于指示上述第一数据信道，该时间信息用于指示上述第一时间段。
该信道信息可以包括用于指示所分配的数据信道的相关信息，例如，可以包括操作类别(operating class)、频段标识符(band ID)、或者主信道编号(Primary channel index)中至少一项。该操作类别(operating class)用于区分不同国家/地区的频谱管制。该频段标识符(band ID)可以指示2.4GHz、5GHz、或者6GHz的工作频段，频段标识符(band ID)所指示的工作频段具体可以参见下表1。该主信道编号(Primary channel index)可以指示具体的20MHz信道，例如，可以指示如图3所示的数据信道1(Data CH1)。
表1频段标识符(band ID)对照表
Figure PCTCN2020084607-appb-000001
另一种可实现方式，在该信道信息包括操作类别(operating class)、频段标识符(band ID)和主信道编号(Primary channel index)的基础上，该信道信息还可以包括带宽信息和至少一个信道中心频率信息。该带宽信息和至少一个信道中心频率信息用于指示带宽大于20MHz的数据信道的带宽和中心频率。该主信道编号(Primary channel index)所指示的20MHz信道为该带宽大于20MHz的数据信道的一部分。参照图4所示，80MHz带宽可以被分为四个子信道(Sub-Channel)，该主信道编号(Primary channel index)所指示子信道中为数据信道的其中一个子信道。
该带宽信息可以包括多个比特，分别用于指示数据信道的带宽，例如，带宽指示为0代表数据信道的带宽为20MHz，为1代表数据信道的带宽为40MHz，2代表数据信道的带宽为80MHz等。该至少一个信道中心频率信息用于指示大于20MHz的数据信道的中心频率。举例而言，一个信道中心频率信息用于指示频谱连续的数据信道的中心频率。两个信道中心频率信息用于指示频谱不连续的数据信道的中心频率，例如，两个信道中心频率包括a和b，带宽指示为2，则表示数据信道由两个频谱不连续的40MHz的信道构成，其中，一个中心频率为a，一个中心频率为b。
该时间信息可以包括用于指示时间段的相关信息。例如，可以包括起始时间(starting time)和时长(Duration)。或者，该时间信息可以包括结束时间和时长。再或者，该时间信息可以包括开始时间和结束时间。
需要说明的是，一种可实现方式，上述信道信息和时间信息可以用于指示站点在一个数据信道的一个时间段与第一接入点进行通信，另一种可实现方式，上述信道信息和时间信息可以用于指示站点在多个数据信道的多个时间段与第一接入点进行通信，再一种可实现方式，上述信道信息和时间信息可以用于指示站点在一个数据信道的多个时间段与第一接入点进行通信。
在一些实施例中，该第一传输分配帧还可以包括上下行指示信息，该上下行指示信息用于指示第一数据信道的第一时间段上进行通信的传输类型，该传输类型包括下行传输、单用户上行传输、或者多用户上行传输。
举例而言，该第一传输分配帧的上下行指示信息用于指示第一数据信道的第一时间段上进行通信的传输类型为下行传输，站点根据该第一传输分配帧在该第一数据信道的第一时间段上接收第一接入点发送的数据。
该第一传输分配帧的上下行指示信息用于指示第一数据信道的第一时间段上进行通信的传输类型为单用户上行传输，站点根据该第一传输分配帧在该第一数据信道的第一时间段上向第一接入点发送数据。
该第一传输分配帧的上下行指示信息用于指示第一数据信道的第一时间段上进行通信的传输类型为多用户上行传输，站点在第一数据信道的第一时间段上接收到第一接入点发送的触发(trigger)帧后，站点向第一接入点发送上行数据。该触发(trigger)帧用于触发多个站点上行传输。
在一些实施例中，所述第一传输分配帧还包括业务限制信息(Traffic limitation information)，该业务限制信息用于指示第一数据信道的第一时间段上进行通信的业务类型。
该业务类型可以包括背景流、普通数据、语音或者视频。可以使用访问类别(Access Category，AC)或者通信标识符(Traffic identifier，TID)指示不同的业务类型的传输需求。其中，AC有四个优先级，分别为AC0、AC1、AC2和AC3。
例如，该业务限制信息可以包括AC0，以指示第一站点在第一数据信道的第一时间段上允许进行通 信的业务类型为AC0。对于上行传输，站点根据该业务限制信息，在第一数据信道的第一时间段上向第一接入点发送属于AC0的数据。
上述传输分配帧所携带的各项信息可以承载在传输分配帧的相应字段。
图5为本申请实施例的一种传输分配帧的示意图，如图5所示，该传输分配帧可以包括帧控制(Frame control)字段、时长(Duration)字段、接收端地址(Receiver Address，RA)字段、发送地址(Transmiter Address，TA)字段、信道信息(Channel information)字段、时间信息(Time information)字段、业务限制信息(Traffic limitation information)字段以及帧序列校验(FCS)字段。
其中，信道信息(Channel information)字段可以承载上述信道信息、时间信息(Time information)字段可以承载上述时间信息、业务限制信息(Traffic limitation information)字段可以承载上述业务限制信息，其具体解释说明可以参见上述实施例，此处不再赘述。
需要说明的是，如图5所示传输分配帧的一个信道信息(Channel information)字段可以用于指示一个数据信道和一个时间信息字段用于指示一个时间段。
该时长(Duration)字段用于指示该传输分配帧所占用的时间长度。该接收端地址(Receiver Address，RA)字段可以包括目标接收节点的地址，例如，目标接收节点的MAC地址。以图2所示实施例为例，第一传输分配帧的RA字段可以包括站点的MAC地址。该发送地址(Transmiter Address，TA)字段可以包括发送节点的地址，例如，发送节点的MAC地址。以图2所示实施例为例，第一传输分配帧的TA可以包括第一接入点的MAC地址。该帧序列校验(FCS)字段用于接收端使用该帧序列校验(FCS)确定该传输分配帧是否正确接收。
可选的，站点在正确接收到该传输分配帧后，可以向第一接入点发送确认(ACK)。
本实施例，通过设置传输分配帧携带信道信息、时间信息和业务限制信息等信息，使得通过公共控制信道接收到该传输分配帧的站点确定在第一数据信道的第一时间段上，与第一接入点进行相应业务类型的数据的通信，从而满足不同业务类型的数据的通信需求。
需要说明是，上述传输分配帧的各个字段信息为一种举例说明，其先后顺序不以此作为限制，传输分配帧还可以包括其他字段信息，其可以根据需求进行灵活设置。且图5仅以传输分配帧包括一个信道信息字段和一个时间信息字段为例进行说明。可以理解的，传输分配帧还可以包括多个信道信息字段和与该多个信道信息字段一一对应的多个时间信息字段。举例而言，该传输分配帧可以包括信道信息字段1和时间信息字段1、信道信息字段2和时间信息字段2，……，信道信息字段n和时间信息字段n，信道信息字段1至n与时间信息字段1至n一一对应。
传输分配帧还可以包括一个信道信息字段和与一个信道信息字段对应的时间信息字段，举例而言，该传输分配帧可以包括信道信息字段1和时间信息字段1、时间信息字段2，……，时间信息字段n。
在一些实施例中，本申请的无线通信方法还可以包括如下步骤：站点在第一时间段内的逗留时长内或在第一时间段内，若未成功接入第一数据信道，则站点切换至公共控制信道。
一种可实现方式，站点在第一时间段的逗留时长内，若未成功接入第一数据信道，则站点切换至公共控制信道。其中，该逗留时长小于或等于第一时间段的时长，该逗留时长的起始时间可以是第一时间段的起始时间，也可以是第一时间段的起始时间之后的时间。该逗留时长可以是预设的，也可以是由第一接入点指示的。当该逗留时长由第一接入点指示时，上述第一传输分配帧还可以包括逗留时长指示信息，该逗留时长指示信息用于指示该逗留时长。与上述时间信息类似，该逗留时长可以包括起始时间和 时长。
另一种可实现方式，站点在第一时间段内，若未成功接入第一数据信道，则站点切换至公共控制信道。即本实现方式无需第一接入点向第一站点指示逗留时长；或，第一接入点指示的逗留时长等于第一时长。
上述两种实现方式中所涉及的未成功接入第一数据信道，可以包括，未竞争到该第一数据信道，或者，没有接收到第一接入点发送的数据。
本实施例，站点在第一时间段内的逗留时长内或在第一时间段内，若未成功接入第一数据信道，则站点切换至公共控制信道，从而使得站点在通信失败时，及时切换至公共控制信道，以提升接入点与站点之间通信的可靠性，且可避免站点未通信成功而长时间等待造成较大的传输时延。
图6为本申请实施例另一种无线通信方法的流程图，如图6所示，本实施例的应用场景为上行传输，本实施例的方法可以包括：
步骤201、站点在公共控制信道上向第一接入点发送传输需求帧。
第一接入点在公共控制信道上接收站点发送的传输需求帧。
该传输需求帧用于上报站点的上行传输需求。例如，该上行传输需求可以包括待传输数据的大小、传输优先级等信息。
第一接入点可以根据传输需求帧确定与站点进行通信的数据信道和时间段。
步骤202、第一接入点在公共控制信道上向站点发送第一传输分配帧。
站点在公共控制信道上接收第一接入点发送的第一传输分配帧。
步骤203、站点在第一数据信道的第一时间段与第一接入点进行上行数据传输。
其中，步骤202和步骤203的具体解释说明可以参见图2所示实施例的步骤101和步骤202的解释说明，此处不再赘述。
在一些实施例中，上述步骤202的一种可实现方式为：第一接入点在接收到该传输需求帧后，在公共控制信道上向站点发送第一传输分配帧。
上述步骤202的另一种可实现方式，第一接入点在接收到该传输需求帧后，向第一站点发送确认(ACK)，在预设时间后，在公共控制信道上向站点发送第一传输分配帧。
可选的，站点还可以在正确接收到第一传输分配帧后，向第一接入点发送确认(ACK)。
本申请实施例介绍的是上行传输的场景，对于下行应用场景中，可选的，在步骤202之前，由第一接入点确定传输需求，例如，根据第一接入点需要向站点发送的数据的大小或优先级等确定传输需求；且在步骤203中，由第一接入点在第一数据信道的第一时间段内向站点发送下行数据。
本实施例，站点在公共控制信道上向第一接入点发送传输需求帧，第一接入点在公共控制信道上向站点发送第一传输分配帧，站点在第一数据信道的第一时间段与第一接入点进行通信，从而使得第一接入点根据站点的传输需求，恰当地向站点分配与其进行通信的数据信道和时间段，提升数据传输效率和信道利用率。
对传输需求帧的解释说明，一种可实现方式，该传输需求帧可以包括业务信息(Traffic information)，该业务信息用于指示期望传输的业务数据的信息。
一种可实现方式，该业务信息可以包括非周期性业务指示信息和周期性业务指示信息中至少一项。该非周期业务指示信息用于指示有至少一个业务类型的数据需要发送。该周期性业务指示信息用于指示 有至少一个通信流需要发送。
其中，该非周期性业务指示信息可以包括业务类型指示信息和至少一个业务类型的待传输数据的大小，该业务类型指示信息用于指示至少一个业务类型，该周期性业务的信息可以包括通信流指示信息和至少一个通信流的属性信息，该通信流指示信息用于指示至少一个通信流。
该业务类型指示信息也可以称之为TID控制信息(Control field for TID bit map)。该业务类型指示信息可以是二进制比特位图，该比特位图中的每一个比特位对应一个TID，比特位为1用于指示有相应的TID的数据传输需求，比特位为0用于指示没有相应的TID的数据传输需求。至少一个业务类型的待传输数据的大小包括至少一个TID的待传输数据的大小，该至少一个TID为上述二进制比特位图中为1的比特位对应的TID，例如，该至少一个业务类型的待传输数据的大小包括TIDn的缓冲区大小(Buffer size for TIDn)、和TIDm的缓冲区大小(Buffer size for TIDm)，n和m为正整数，该TIDn的缓冲区大小(Buffer size for TIDn)用于指示第n个比特位对应的TID的缓冲区大小，该TIDm的缓冲区大小(Buffer size for TIDm)用于指示第m个比特位对应的TID的缓冲区大小，n、m的具体取值与上述二进制比特位图有关。举例而言，该业务类型指示信息为10001000，则该至少一个业务类型的待传输数据的大小包括TID1的缓冲区大小和TID5的缓冲区大小。
该通信流指示信息也可以称之为TS控制信息(Control field for TS bit map)。该通信流指示信息可以是二进制比特位位图，比特位图中的每一个比特位对应一个(Traffic stream，TS)，比特位为1用于指示有相应的TS的传输需求，比特位为0用于指示没有相应的TS的传输需求。至少一个通信流的属性信息包括至少一个TS的通信规范(Traffic specification，TSPEC)，该至少一个TS为上述二进制比特位图中为1的比特位对应的TS，例如，该至少一个通信流的属性信息包括TSi的通信规范(TSPEC for TSi)、……TSj的通信规范(TSPEC for TSj)，i和j为正整数，该TSi的通信规范用于指示第i个比特位对应的TS的通信规范，该TSj的通信规范用于指示第j个比特位对应的TS的通信规范。通信规范可以包括服务间隔时间、最小速率、包大小、最大延时等信息。举例而言，该通信流指示信息为10100，则该至少一个通信流的属性信息包括TS1的通信规范和TS3的通信规范。
上述传输需求帧所携带的各项信息可以承载在传输需求帧的相应字段。
图7A为本申请实施例的一种传输需求帧的示意图，如图7A所示，该传输分配帧可以包括帧控制(Frame control)字段、时长(Duration)字段、接收端地址(Receiver Address，RA)字段、发送地址(Transmiter Address，TA)字段、业务信息(Traffic information)字段以及帧序列校验(FCS)字段。
其中，业务信息(Traffic information)字段用于承载上述业务信息，其具体解释说明可以参见上述实施例，此处不再赘述。该时长(Duration)字段用于指示该传输需求帧所占用的时间长度。该接收端地址(Receiver Address，RA)字段可以包括目标接收节点的地址，例如，目标接收节点的MAC地址。以图6所示实施例为例，传输需求帧的RA字段可以包括第一接入点的MAC地址。该发送地址(Transmiter Address，TA)字段可以包括发送节点的地址，例如，发送节点的MAC地址。以图6所示实施例为例，传输需求帧的TA字段可以包括第一站点的MAC地址。该帧序列校验(FCS)字段用于接收端使用该帧序列校验(FCS)确定该传输需求帧是否正确接收。
图7B为本申请实施例的图7A所示的传输需求帧的业务信息字段的示意图，如图7B所示，该业务信息字段可以包括TID控制子字段(Control field for TID bit map)、TS控制子字段(Control field for TS bit map)、TIDn的缓冲区大小(Buffer size for TIDn)子字段、……TIDm的缓冲区大小(Buffer size for TIDm)子字段、TSi的通信规范(TSPEC for TSi)子字段、……TSj的通信规范(TSPEC for TSj)子字段。
其中，TID控制子字段(Control field for TID bit map)、TS控制子字段(Control field for TS bit map)、TIDn的缓冲区大小(Buffer size for TIDn)子字段、……TIDm的缓冲区大小(Buffer size for TIDm)子字段、TSi的通信规范(TSPEC for TSi)子字段、……TSj的通信规范(TSPEC for TSj)子字段所承载的相应信息的具体解释说明可以参见上述实施例，此处不再赘述。
本实施例，通过设置传输需求帧携带业务信息，使得通过公共控制信道接收到该传输需求帧的第一接入点获知站点的数据传输需求，进而基于数据传输需求确定在第一数据信道的第一时间段上，与站点进行相应的数据的通信，从而满足站点的上行数据的传输需求。
需要说明是，上述传输需求帧的各个字段信息为一种举例说明，其先后顺序不以此作为限制，传输分配帧还可以包括其他字段信息，其可以根据需求进行灵活设置。
上述实施例的第一传输分配帧用于指示一个站点在第一数据信道的第一时间段与第一接入点进行通信，在本申请实施例中，该第一传输分配帧用于为多个站点分配多个第一数据信道的第一时间段，实现多个站点在多个第一数据信道上与第一接入点进行通信，其具体实施方式可以参见下述实施例的解释说明。
图8为本申请实施例另一种无线通信方法的流程图，如图8所示，本实施例涉及第一接入点和多个站点，该多个站点的个数可以两个、三个或者更多，举例而言，该第一接入点可以是如图1所示的AP1，该多个站点可以是如图1所示的STA1和STA2，本实施例的方法可以包括：
步骤301、第一接入点在公共控制信道上向多个站点发送第一传输分配帧。
多个站点在公共控制信道上接收第一接入点发送的第一传输分配帧。
第一传输分配帧用于指示多个站点在至少一个第一数据信道的至少一个第一时间段与第一接入点进行通信。
第一接入点可以通过该第一传输分配帧为多个站点分配与其进行通信的数据信道和该数据信道上的时间段。
对至少一个第一数据信道进行解释说明，当该至少一个第一数据信道的个数为两个或两个以上时，即至少两个第一数据信道，至少两个第一数据信道中任意两个第一数据信道可以相同也可以不同。
对至少一个第一时间段进行解释说明，当该至少一个第一时间段的个数为两个或两个以上时，即至少两个第一时间段，至少两个第一时间段中任意两个第一时间段可以相同也可以不同。
举例而言，AP1在如图3所示的公共控制信道上向STA1和STA2发送第一传输分配帧，该第一传输分配帧可以用于指示STA1在数据信道1(Data CH1)通信时间段12与AP1进行通信，指示STA2在数据信道2(Data CH2)通信时间段22与AP1进行通信。该通信可以包括上行通信或者下行通信。
第一接入点可以根据自身的传输需要确定至少一个数据信道和/或至少一个时间段在时间轴上的位置、长度，也可以根据各个站点的传输需求确定至少一个数据信道和/或至少一个时间段在时间轴上的位置、长度，当然可以理解的，还可以结合其他信息确定至少一个数据信道和/或至少一个时间段在时间轴上的位置、长度，进而生成该第一传输分配帧。
对于下行传输，第一接入点可以根据待传输数据和目标接收端确定第一传输分配帧，例如，第一接入点可以根据待传输数据的大小、传输优先级、目标接收端等信息，确定至少一个数据信道和/或至少一个时间段在时间轴上的位置、长度。例如，确定两个第一数据信道(如上所述数据信道1和数据信道2)和两个第一时间段(如上所述通信时间段12和通信时间段22)，即确定STA1在数据信道1(Data CH1)的通信时间段12与AP1进行通信，STA2在数据信道2(Data CH2)通信时间段22与AP1进行通信。在一 些实施例中，第一接入点还可以结合各个数据信道的信道质量综合确定STA1的通信时间段和STA2的通信时间段。
对于上行传输，各个站点可以分别向第一接入点发送传输需求，第一接入点可以根据各个站点发送的传输需求确定至少一个数据信道和/或至少一个时间段在时间轴上的位置、长度。例如，该传输需求可以包括待传输数据的大小、传输优先级等信息。例如，确定两个第一数据信道(如上所述数据信道1和数据信道2)和两个第一时间段(如上所述通信时间段12和通信时间段22)，即确定STA1在数据信道1(Data CH1)的通信时间段12与AP1进行通信，STA2在数据信道2(Data CH2)通信时间段22与AP1进行通信。在一些实施例中，第一接入点还可以结合各个数据信道的信道质量综合确定STA1的通信时间段和STA2的通信时间段。
需要说明的是，第一接入点确定STA1的数据信道的通信时间段的所使用的原则，可以与确定STA2的数据信道的通信时间段的所使用的原则相同或不同。
步骤302、第一接入点在至少一个第一数据信道的至少一个第一时间段与多个站点进行通信。
以上述举例做进一步解释说明，第一接入点可以在数据信道1(Data CH1)通信时间段12与STA1进行通信，在数据信道2(Data CH2)通信时间段22与STA2进行通信。
本实施例，第一接入点在公共控制信道上向多个站点发送第一传输分配帧，该第一传输分配帧用于指示该多个站点在至少一个第一数据信道的至少一个第一时间段与第一接入点进行通信，各个站点在相应的第一数据信道的第一时间段与第一接入点进行通信，从而在公共控制信道发送第一传输分配帧，以指示多个站点与第一接入点进行通信的数据信道和时间段，实现控制与数据传输分离在不同信道上，降低了对主信道的严重依赖，可以提升信道利用率。
对第一传输分配帧的解释说明，另一种可实现方式，该第一传输分配帧可以包括至少一个信道分配信息，该至少一个信道分配信息可以包括信道分配信息1(Allocation 1)、……、信道分配信息n(Allocation n)，n取任意正整数。
一种可实现方式，每个信道分配信息对应一个第一数据信道的一个第一时间段，每个信道分配信息包括信道信息(Channel information)、时间信息(Time information)和站点信息，该信道信息用于指示一个第一数据信道，该时间信息用于指示一个第一时间段，该站点信息用于指示在第一数据信道的第一时间段与第一接入点进行通信的至少一个站点。
举例而言，第一传输分配帧可以包括两个信道分配信息，分别为信道分配信息1(Allocation 1)和信道分配信息2(Allocation 2)。信道分配信息1(Allocation 1)对应数据信道(Data CH1)的通信时间段12，该信道分配信息1(Allocation 1)中的信道信息用于指示该数据信道(Data CH1)，该信道分配信息1(Allocation 1)中的时间信息用于指示该通信时间段12，该信道分配信息1(Allocation 1)中的站点信息用于指示STA1。信道分配信息2(Allocation 2)对应数据信道(Data CH2)的通信时间段22，该信道分配信息2(Allocation 2)中的信道信息用于指示该数据信道(Data CH2)，该信道分配信息2(Allocation 2)中的时间信息用于指示该通信时间段22，该信道分配信息2(Allocation 2)中的站点信息用于指示STA2。
每个信道信息(Channel information)可以包括操作类别(operating class)、频段标识符(band ID)、或者信道编号(channel index)中至少一项，每个时间信息(Time information)可以包括起始时间(starting time)和时长(Duration)，其具体解释说明可以参见上述实施例，此处不再赘述。
在一些实施例中，该第一传输分配帧还可以包括上下行指示信息和业务限制信息(Traffic limitation  information)。
上下行指示信息和该业务类型的解释说明可以参见上述实施例的解释说明，此处不再赘述。
在一些实施例中，每个信道分配信息中的站点信息可以包括STA个数(Number of STAs)和STA的关联标识(Association ID，AID)列表(AID list of STAs)。该STA个数用于指示在相应的第一数据信道的第一时间段与第一接入点进行通信的STA的个数，该STA的AID列表用于指示在相应的第一数据信道的第一时间段与第一接入点进行通信的各个STA。
图9A为本申请实施例的另一种传输分配帧的示意图，如图9A所示，该传输分配帧可以包括帧控制(Frame control)字段、时长(Duration)字段、接收端地址(Receiver Address，RA)字段、发送地址(Transmiter Address，TA)字段、信道信息(Channel information)字段、分配数(Number of Allocation)字段、信道分配信息1(Allocation 1)字段、……、信道分配信息n(Allocation n)字段以及帧序列校验(FCS)字段。
其中，信道分配信息1(Allocation 1)字段用于承载相应的信道分配信息、……、信道分配信息n(Allocation n)字段用于承载相应的信道分配信息，信道分配信息的具体解释说明可以参见上述实施例，此处不再赘述。
该分配数字段用于指示信道分配信息的个数n。
该时长(Duration)字段用于指示该传输分配帧所占用的时间长度。该接收端地址(Receiver Address，RA)字段可以包括广播地址。该发送地址(Transmiter Address，TA)字段可以包括发送节点的地址，例如，发送节点的MAC地址。以图8所示实施例为例，第一传输分配帧的TA可以包括第一接入点的MAC地址。该帧序列校验(FCS)字段用于接收端使用该帧序列校验(FCS)确定该传输分配帧是否正确接收。
可选的，各个站点在正确接收到该传输分配帧后，可以向第一接入点发送确认(ACK)。
需要说明的是，图9A所示的传输分配帧也可以适用于一个站点。
图9B为本申请实施例的图9A所示的传输分配帧的信道分配信息字段的示意图，如图9B所示，该信道分配信息字段可以包括信道信息(Channel information)子字段、时间信息子字段、业务限制信息(Traffic limitation information)子字段、STA个数(Number of STAs)子字段和STA的AID列表(AID list of STAs)子字段。即可以向多个STA分配同一个数据信道的同一个时间段，也可以向多个STA分配多个数据信道的多个时间段。
其中，上述各个子字段用于携带相应的信息，例如，上述信道信息(Channel information)、时间信息、业务限制信息(Traffic limitation information)、STA个数(Number of STAs)和STA的AID列表(AID list of STAs)，其具体解释说明可以参见上述实施例，此处不再赘述。
本实施例，通过设置传输分配帧携带至少一个信道分配信息，使得通过公共控制信道接收到该传输分配帧的多个站点确定在至少一个第一数据信道的至少一个第一时间段上，与第一接入点进行相应业务类型的数据的通信，从而满足不同业务类型的数据的通信需求。
需要说明是，上述传输分配帧的各个字段信息为一种举例说明，其先后顺序不以此作为限制，传输分配帧还可以包括其他字段信息，其可以根据需求进行灵活设置。
另一种可实现方式，每个信道分配信息对应一个站点与第一接入点进行通信的第一数据信道的一个 第一时间段，每个信道分配信息包括站点信息、信道信息(Channel information)和时间信息(Time information)，站点信息用于指示一个与第一接入点进行通信的站点，信道信息用于指示与站点对应的一个第一数据信道，时间信息用于指示与站点对应的一个第一时间段
举例而言，第一传输分配帧可以包括两个信道分配信息，分别为信道分配信息1(Allocation 1)和信道分配信息2(Allocation 2)。信道分配信息1(Allocation 1)对应STA1与第一接入点进行通信的数据信道(Data CH1)的通信时间段12，该信道分配信息1(Allocation 1)可以包括站点信息、信道信息和时间信息，该站点信息用于指示STA1，该信道信息用于指示该数据信道(Data CH1)，该时间信息用于指示该通信时间段12。信道分配信息2(Allocation 2)对应STA2与第一接入点进行通信的数据信道(Data CH2)的通信时间段22，该信道分配信息2(Allocation 2)可以包括站点信息、信道信息和时间信息，该站点信息用于指示STA2，该信道信息用于指示该数据信道(Data CH2)，该时间信息用于指示该通信时间段22。
每个信道信息(Channel information)可以包括操作类别(operating class)、频段标识符(band ID)、或者信道编号(channel index)中至少一项，每个时间信息(Time information)可以包括起始时间(starting time)和时长(Duration)，其具体解释说明可以参见上述实施例，此处不再赘述。
在一些实施例中，该第一传输分配帧还可以包括上下行指示信息，业务限制信息(Traffic limitation information)
上下行指示信息和业务类型的解释说明可以参见上述实施例的解释说明，此处不再赘述。
在一些实施例中，每个信道分配信息中的站点信息可以包括STA的AID(AID of STA)。该STA的AID用于指示相应的STA。
图10为本申请实施例的图9A所示的传输分配帧的信道分配信息字段的示意图，如图9所示，该信道分配信息字段可以STA的AID(AID of STA)子字段、信道信息(Channel information)子字段、时间信息子字段和业务限制信息(Traffic limitation information)子字段。
其中，各个字段用于承载相应的信息，如，信道信息(Channel information)、时间信息、业务限制信息(Traffic limitation information)和STA的AID(AID of STA)，其具体解释说明可以参见上述实施例，此处不再赘述。
需要说明是，上述信道分配信息的各个字段信息为一种举例说明，其先后顺序不以此作为限制，信道分配信息还可以包括其他字段信息，其可以根据需求进行灵活设置。
对于上行传输，结合图8虚线所示，本申请实施例的无线通信方法在步骤301之前还可以包括如下步骤：多个第一站点向公共控制信道上向第一接入点发送传输需求帧，第一接入点在公共控制信道上接收多个站点发送的传输需求帧，一个传输需求帧用于上报一个站点的上行传输需求。第一接入点根据多个站点发送的传输需求帧生成该第一传输分配帧。
其中，每个站点发送的传输需求帧可以采用与图6至图7A所述的传输需求帧，其具体解释说明，此处不再赘述。
对于下行传输，本申请实施例的无线通信方法在步骤301之前还可以包括如下步骤：第一接入点根据自身传输需求确定与多个站点进行通信的数据信道和时间段，进而生成该第一传输分配帧。
图11为本申请实施例另一种无线通信方法的流程图，如图11所示，本实施例涉及第一接入点和第二 接入点，举例而言，该第一接入点可以是如图1所示的AP1，该第二接入点可以是如图1所示的AP2，本实施例的方法可以包括：
步骤401、第一接入点在公共控制信道上接收第二接入点发送的第三传输分配帧。
第二接入点在公共控制信道上发送第三传输分配帧，由于第一接入点和第二接入点公用该公共控制信道，所以，第一接入点可以接收到该第三传输分配帧，该第三传输分配帧用于指示第二站点在第二数据信道的第二时间段与第二接入点进行通信。
该第三传输分配帧可以采用与图5、图9A至图10所述的传输分配帧，其具体解释说明，此处不再赘述。
步骤402、第一接入点根据第三传输分配帧更新网络分配矢量(NAV)表格。
该NAV表格包括多组数据信道和时间段的对应关系。一组数据信道和时间段用于表示一个数据信道的一个时间段被占用。在一些实施例中，该NAV表格还可以包括站点信息，站点信息与一组数据信道和时间段对应，用于表示占用一个数据信道的一个时间段的站点。更新后的NAV表格包括用于指示第二数据信道的信道信息，以及用于指示第二时间段的时间信息。
根据第三传输分配帧更新NAV表格的一种可实现方式，将第三传输分配帧所指示的数据信道、时间段添加至原有的NAV表格中。一个示例中，NAV表格中的一行表示一组数据信道和时间段的对应关系，NAV表格中的一行包括：信道信息，时间段的起始时间和持续时长。另一种示例，NAV表格中的一行包括：信道信息，时间段的起始时间和结束时间。再一种示例，NAV表格中的一行包括：信道信息，时间段的结束时间和持续时长。
上述任一示例的NAV表格的一行还可以包括站点信息，该站点信息指示被分配到可以在该数据信道的时间段上进行通信的站点，例如：持有者。该站点信息可以是该站点的MAC地址，对于在该数据信道的时间段上传输的是广播数据时，该站点信息可以是广播地址。
例如，一种NAV表格的示意如下表2，如表2所示，该NAV表格包括多行，每一行记载一个数据信道的一个时间段被至少一个站点占用。如表1所示，数据信道1(CH1)在t1至t1+T1时刻被STA1占用，数据信道2(CH1)在t2至t2+T2时刻被STA2占用。
表2 NAV表格示例
信道信息 起始时间 持续时间 持有者
CH1 t1 T1 STA1的MAC地址(MAC Address of STA 1)
CH2 t2 T2 STA2的MAC地址(MAC Address of STA 2)
上述步骤401，第一接入点接收到第三传输分配帧，一个示例中，若该第三传输分配帧用于指示STA3在数据信道1(CH1)的t3至t3+T3时刻与第一接入点进行通信，通过上述步骤402，第一接入点对表2所示的NAV表格进行更新，得到如下表3所示的NAV表格。
表3 NAV表格示例
信道信息 起始时间 持续时间 持有者
CH1 t1 T1 STA1的MAC地址(MAC Address of STA 1)
CH2 t2 T2 STA2的MAC地址(MAC Address of STA 2)
CH1 t3 T3 STA3的MAC地址(MAC Address of STA 3)
… … … …
上述实施例以第一接入点为例进行说明，可以理解的，第二接入点也可以采用相同的方式维护自身的NAV表格。
需要说明的是，表2和表3中的持有者也可以是广播地址，上述MAC地址仅为一种举例说明。
本实施例，通过接收相邻接入点的传输分配帧，维护自身的NAV表格，以在多接入点的应用场景中，实现信道资源的合理协调分配，减少多接入点的传输碰撞，提升通信效率和可靠性。相邻的接入点可以使用相同的公共控制信道来减少或者避免多个BSS之间的碰撞。
本申请的无线通信方式只进行CCA侦听，不进行初始接入时的退避，在调度时段(如上所述的第一时间段)开始点或者更晚的时间点，如果满足CCA结果为空闲，则发送端(接入点或站点)直接进行发送。但在传输出错时，按照现有标准进行退避操作。
表3给出了本方案信道接入方式与现有的PSMP以及IEEE 802.11ah引入的RAW接入方式的对比。
表3在调度时段内接入方式的对比
  CCA Backoff
RAW Yes Yes
PSMP No No
本方案 Yes No
本实施例，通过采用上述接入方式，可以提升信道利用率和数据传输效率。
对于上述任一实施例的公共控制信道，接入点可以在公共控制信道上的第一阶段接收站点发送的传输需求帧，在公共控制信道的第二阶段向站点发送传输分配帧，以指示站点在第二阶段所在时隙的下一个时隙中的时间段与接入点进行通信。作为一种示例，图12为本申请实施例的一种信道时隙化的示意图，如图12所示，公共控制信道包括多个时隙，每个时隙包括第一阶段(Phase I)和第二阶段(Phase II)。
该第一阶段用于接收至少一个站点发送的传输需求帧，该第二阶段用于向至少一个站点发送第一传输分配帧，该第一传输分配帧所指示的至少一个第一时间段为第二阶段所在时隙的下一个时隙中的时间段。该第一传输分配帧可以向一个站点分配进行通信的数据信道和时间段，其帧结构可以采用如上图5所示的帧结构。该第一传输分配帧也可以向多个站点分配进行通信的数据信道和时间，其帧结构可以采用如上图9A-图9B、图10所示的帧结构。
本实施例可以通过信标(Becon)帧实现时间同步和时隙划分。
举例说明，如图12所示的第一阶段2，在该第一阶段2，一方面，接入点可以收集各个站点发送的传输需求帧，另一方面，接入点与站点按照上一个时隙的第二阶段1所发送的第一传输分配帧，在数据信道上进行通信。例如，可以在数据信道1(Data CH1)的第一阶段2和第二阶段2进行通信。
如图12所示的第二阶段2，在该第二阶段2，禁止站点执行上行EDCA，接入点在该第二阶段2在公共控制信道上向站点发送第一传输分配帧，以实现数据信道的传输资源分配。
本实施例，通过设置每个时隙包括第一阶段(PhaseI)和第二阶段(PhaseII)。该第一阶段用于接收至少一个站点发送的传输需求帧，该第二阶段用于向至少一个站点发送第一传输分配帧，该第一传输分配帧所指示的至少一个第一时间段为第二阶段所在时隙的下一个时隙中的时间段，将公共控制信道的时间划分成各个时隙，时间粒度更小，灵活度更高，避免了某个传输占据公共控制信道较长的时间，导致高优先级业务无法及时传输，降低了业务传输的时延。
图13A为本申请实施例的一种传输分配帧的发送时机的示意图，如图13A所示，第一接入点在公共 控制信道上的发送窗口内发送传输分配帧，该传输分配帧可以是上述任一实施例所涉及的传输分配帧。
该发送窗口的时长小于第一预设时长T，该发送窗口的结束点为传输分配帧所分配的第一时间段的起始点。当传输分配帧指示一个数据信道的一个时间段时，该发送窗口的结束点为该时间段的起始点。当传输分配帧指示一个数据信道的多个时间段时，该发送窗口的结束点为该多个时间段中起始点最远的时间段的起始点。
该第一预设时长T可以是预设的，T为正数，其大小可以根据需求进行灵活设置。
图13B为本申请实施例的另一种传输分配帧的发送时机的示意图，如图13B所示，第一接入点在公共控制信道上的发送窗口内发送第一传输分配帧。
该发送窗口的时长小于第二预设时长L，该发送窗口的结束点为已分配时间段的结束点，该已分配时间段为第一接入点在发送第一传输分配帧之前发送的第二传输分配帧所指示的进行通信的时间段。
一种可实现方式，如图13B所示，对不同的数据信道设置不同的发送窗口，例如，数据信道1的分配窗口和数据信道2的分配窗口，该数据信道1的分配窗口的时长小于第二预设时长L，该数据信道1的分配窗口的结束点为数据信道1已分配时间段的结束点。该数据信道2的分配窗口的时长小于第二预设时长L，该数据信道2的分配窗口的结束点为数据信道2已分配时间段的结束点。
本实施例，无需接入点之间时间同步，可以使得第一传输分配帧所分配的进行通信的时间段与第一传输分配帧的发送时间间隔在预设时长内，使得通信灵活度更高，避免了某个传输占据公共控制信道较长的时间，导致高优先级业务无法及时传输，降低了业务传输的时延。
上文中详细描述了根据本申请实施例的无线通信方法，下面将描述本申请实施例的无线通信装置。
本申请实施例详细描述了无线通信装置的示意性结构。
在一个示例中，图14示出了本申请实施例的一种无线通信装置1400的示意性框图。本申请实施例的装置1400可以是上述方法实施例中的站点，也可以是站点内的一个或多个芯片。装置1400可以用于执行上述方法实施例中的站点的部分或全部功能。该装置1400可以包括收发模块1410和处理模块1420，可选的，该装置1400还可以包括存储模块1430。
例如，该收发模块1410，可以用于接收前述方法实施例中的步骤S101中来自第一接入点的第一传输分配帧，或者用于执行步骤S201和接收步骤202中来自第一接入点的第一传输分配帧，或者用于接收步骤S301中来自第一接入点的第一传输分配帧。
该处理模块1420可以用于执行前述方法实施例中步骤S102，或者用于执行步骤S203，或者用于执行步骤S302。
可以替换的，装置1400也可配置成通用处理系统，例如通称为芯片，该处理模块1420可以包括：提供处理功能的一个或多个处理器；所述收发模块1410例如可以是输入/输出接口、管脚或电路等，输入/输出接口可用于负责此芯片系统与外界的信息交互，例如，此输入/输出接口可将站点的传输需求帧输出给此芯片外的其他模块进行处理。该处理模块可执行存储模块中存储的计算机执行指令以实现上述方法实施例中站点的功能。在一个示例中，装置1400中可选的包括的存储模块1430可以为芯片内的存储单元，如寄存器、缓存等，所述存储模块1430还可以是所述站点内的位于芯片外部的存储单元，如只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)等。
在另一个示例中，图15示出了本申请实施例的另一种无线通信装置1500的示意性框图。本申请实施例的装置1500可以是上述方法实施例中的站点，装置1500可以用于执行上述方法实施例中的站点的部分 或全部功能。该装置1500可以包括：处理器1510，基带电路1530，射频电路1540以及天线1550，可选的，该装置1500还可以包括存储器1520。装置1500的各个组件通过总线1560耦合在一起，其中总线系统1560除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统1560。
处理器1510可用于实现对站点的控制，用于执行上述实施例中由站点进行的处理，可以执行上述方法实施例中涉及站点的处理过程和/或用于本申请所描述的技术的其他过程，还可以运行操作系统，负责管理总线以及可以执行存储在存储器中的程序或指令。
基带电路1530、射频电路1540以及天线1550可以用于支持站点和上述实施例中涉及的接入点之间收发信息，以支持站点与接入点之间进行无线通信。一个示例中，来自接入点发送的第一传输分配帧经由天线1550接收，由射频电路1540进行滤波、放大、下变频以及数字化等处理后，再经由基带电路1530解码、按协议解封装数据等基带处理后，由处理器1510进行处理来恢复接入点所发送的业务数据和信令信息；又一个示例中，站点中用于指示站点的传输需求的传输需求帧可由处理器1510进行处理，经由基带电路1530进行按协议封装，编码等基带处理，进一步由射频电路1540进行模拟转换、滤波、放大和上变频等射频处理后，经由天线1550发射出去。
存储器1520可以用于存储站点的程序代码和数据，存储器1520可以是图14中的存储模块1430。可以理解的，基带电路1530、射频电路1540以及天线1550还可以用于支持站点与其他网络实体进行通信，例如,用于支持站点与核心网侧的网元进行通信。图15中存储器1520被示为与处理器1510分离，然而，本领域技术人员很容易明白，存储器1520或其任意部分可位于无线通信装置1500之外。举例来说，存储器1520可以包括传输线、和/或与无线节点分离开的计算机制品，这些介质均可以由处理器1510通过总线接口1560来访问。可替换地，存储器1520或其任意部分可以集成到处理器1510中，例如，可以是高速缓存和/或通用寄存器。
可以理解的是，图15仅仅示出了站点的简化设计。例如，在实际应用中，站点可以包含任意数量的发射器，接收器，处理器，存储器等，而所有可以实现本申请的站点都在本申请的保护范围之内。
一种可能的实现方式中，无线通信装置也可以使用下述来实现：一个或多个现场可编程门阵列(field-programmable gate array，FPGA)、可编程逻辑器件(programmable logic device，PLD)、控制器、状态机、门逻辑、分立硬件部件、任何其它适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。在又一个示例中，本申请实施例还提供一种计算机存储介质，该计算机存储介质可以存储用于指示上述任一种方法的程序指令，以使得处理器执行此程序指令实现上述方法实施例中涉及站点的方法和功能。
本申请实施例详细描述无线通信装置的示意性结构。在一个示例中，图16示出了本申请实施例的一种无线通信装置1600的示意性框图。本申请实施例的装置1600可以是上述方法实施例中的接入点，也可以是接入点内的一个或多个芯片。装置1600可以用于执行上述方法实施例中的接入点的部分或全部功能。该装置1600可以包括处理模块1610和收发模块1620，可选的，该装置1600还可以包括存储模块1630。
例如，该收发模块1620，可以用于接入点发送前述方法实施例中的步骤S101的第一传输分配帧，或者用于接收步骤S201中来自站点的传输需求帧和发送步骤S202的第一传输分配帧，或者用于发送步骤S301的第一传输分配帧，或者用于接收步骤S401中来自第二接入点的第三传输分配帧；
该处理模块1610，可以用于执行前述方法实施例中的步骤S102，或者用于执行步骤S203，或者用 于执行步骤S302，或者用于执行步骤S402；
可以替换的，装置1600也可配置成通用处理系统，例如通称为芯片，该处理模块1610可以包括：提供处理功能的一个或多个处理器；所述收发模块例如可以是输入/输出接口、管脚或电路等，输入/输出接口可用于负责此芯片系统与外界的信息交互，例如，此输入/输出接口可将第一传输分配帧输出给此芯片外的其他模块进行处理。该一个或多个处理器可执行存储模块中存储的计算机执行指令以实现上述方法实施例中接入点的功能。在一个示例中，装置1600中可选的包括的存储模块1630可以为芯片内的存储单元，如寄存器、缓存等，所述存储模块1630还可以是所述接入点内的位于芯片外部的存储单元，如只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)等。
在另一个示例中，图17示出了本申请实施例的另一种无线通信装置1700的示意性框图。本申请实施例的装置1700可以是上述方法实施例中的接入点，装置1700可以用于执行上述方法实施例中的接入点的部分或全部功能。该装置1700可以包括：处理器1710，基带电路1730，射频电路1740以及天线1750，可选的，该装置1700还可以包括存储器1720。装置7800的各个组件通过总线1760耦合在一起，其中总线系统1760除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统1760。
处理器1710可用于实现对接入点的控制，用于执行上述实施例中由接入点进行的处理，可以执行上述方法实施例中涉及接入点的处理过程和/或用于本申请所描述的技术的其他过程，还可以运行操作系统，负责管理总线以及可以执行存储在存储器中的程序或指令。
基带电路1730、射频电路1740以及天线1750可以用于支持接入点和上述实施例中涉及的站点之间收发信息，以支持接入点与站点之间进行无线通信。一个示例中，来自站点发送的传输需求帧经由天线1750接收，由射频电路进行滤波、放大、下变频以及数字化等处理后，再经由基带电路解码、按协议解封装数据等基带处理后，由处理器1710进行处理来恢复站点所发送的业务数据和信令信息；又一个示例中，接入点的第一传输分配帧可由处理器1710进行处理，经由基带电路1730进行按协议封装，编码等基带处理，进一步由射频电路1740进行模拟转换、滤波、放大和上变频等射频处理后，经由天线1750发射出去，存储器1720可以用于存储接入点的程序代码和数据，存储器1720可以是图16中的存储模块1630。可以理解的，基带电路1730、射频电路1740以及天线1750还可以用于支持接入点与其他网络实体进行通信，例如,用于支持接入点与其他接入点进行通信。
可以理解的是，图17仅仅示出了接入点的简化设计。例如，在实际应用中，接入点可以包含任意数量的发射器，接收器，处理器，存储器等，而所有可以实现本申请的接入点都在本发明的保护范围之内。
一种可能的实现方式中，无线通信装置也可以使用下述来实现：一个或多个现场可编程门阵列(field-programmable gate array，FPGA)、可编程逻辑器件(programmable logic device，PLD)、控制器、状态机、门逻辑、分立硬件部件、任何其它适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。
在又一个示例中，本申请实施例还提供一种计算机存储介质，该计算机存储介质可以存储用于指示上述任一种方法的程序指令，以使得处理器执所述程序指令实现上述方法实施例中涉及接入点的方法和功能。
上述装置1500和装置1700中涉及的处理器可以是通用处理器，例如通用中央处理器(CPU)、网络处理器(Network Processor，简称NP)、微处理器等，也可以是特定应用集成电路(application-specific integrated circBIt，简称ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。还可以是数 字信号处理器(Digital Signal Processor，简称DSP)、现场可编程门阵列(Field-Programmable Gate Array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。控制器/处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。处理器通常是基于存储器内存储的程序指令来执行逻辑和算术运算。
上述装置1500和装置1700中涉及的存储器还可以保存有操作系统和其他应用程序。具体地，程序可以包括程序代码，程序代码包括计算机操作指令。更具体的，上述存储器可以是只读存储器(read-only memory，简称ROM)、可存储静态信息和指令的其他类型的静态存储设备、随机存取存储器(random access memory，简称RAM)、可存储信息和指令的其他类型的动态存储设备、磁盘存储器等等。存储器可以是上述存储类型的组合。并且上述计算机可读存储介质/存储器可以在处理器中，还可以在处理器的外部，或在包括处理器或处理电路的多个实体上分布。上述计算机可读存储介质/存储器可以具体体现在计算机程序产品中。举例而言，计算机程序产品可以包括封装材料中的计算机可读介质。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，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单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk)等。

Claims (27)

  1. 一种无线通信方法，其特征在于，包括：
    站点在公共控制信道上接收第一接入点发送的第一传输分配帧，所述第一传输分配帧用于指示所述站点在第一数据信道的第一时间段与所述第一接入点进行通信；
    所述站点在所述第一数据信道的第一时间段与所述第一接入点进行通信；
    所述第一传输分配帧包括信道信息和时间信息，所述信道信息用于指示所述第一数据信道，所述时间信息用于指示所述第一时间段。
  2. 根据权利要求1所述的方法，其特征在于，所述第一传输分配帧还包括上下行指示信息和业务限制信息中至少一项，所述上下行指示信息用于指示所述第一数据信道的第一时间段上进行通信的传输类型，所述传输类型包括下行传输、单用户上行传输、或者多用户上行传输；
    所述业务限制信息用于指示所述第一数据信道的第一时间段上进行通信的业务类型。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述站点在所述第一时间段内的逗留时长内或在所述第一时间段内，若未成功接入所述第一数据信道，则所述站点切换至所述公共控制信道。
  4. 根据权利要求3所述的方法，其特征在于，所述第一传输分配帧还包括逗留时长指示信息，所述逗留时长指示信息用于指示所述逗留时长。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，传输需求帧包括非周期性业务指示信息和周期性业务指示信息中至少一项，所述非周期性业务指示信息包括业务类型指示信息和至少一个业务类型的待传输数据的大小，所述业务类型指示信息用于指示所述至少一个业务类型，所述周期性业务的信息包括通信流指示信息和至少一个通信流的属性信息，所述通信流指示信息用于指示所述至少一个通信流；
    所述传输需求帧为所述站点在公共控制信道上发送的。
  6. 根据权利要求5所述的方法，其特征在于，所述公共控制信道包括多个时隙，每个时隙包括第一阶段和第二阶段，所述第一阶段用于所述站点在所述第一阶段发送所述传输需求帧，所述第二阶段用于所述站点接收所述第一传输分配帧，所述第一传输分配帧的第一时间段为所述第二阶段所在时隙的下一个时隙中的时间段。
  7. 一种无线通信方法，其特征在于，包括：
    第一接入点在公共控制信道上向第一站点发送第一传输分配帧，所述第一传输分配帧用于指示所述第一站点在至少一个第一数据信道的至少一个第一时间段与所述第一接入点进行通信；
    所述第一接入点在所述至少一个第一数据信道的至少一个第一时间段与所述第一站点进行通信；
    所述第一传输分配帧包括至少一个信道信息和至少一个时间信息，每个信道信息用于指示一个第一数据信道，每个时间信息用于指示一个第一时间段。
  8. 根据权利要求7所述的方法，其特征在于，所述第一接入点在公共控制信道上向第一站点发送第一传输分配帧，包括：
    所述第一接入点在所述公共控制信道上的发送窗口内向所述第一站点发送所述第一传输分配帧；
    所述发送窗口的时长小于第一预设时长T，所述发送窗口的结束点为所述至少一个第一时间段中最远的第一时间段的起始点；或者，所述发送窗口的时长小于第二预设时长L，所述发送窗口的结束点为已分配时间段的结束点，所述已分配时间段为所述第一接入点在发送所述第一传输分配帧之前发送的第 二传输分配帧所指示的进行通信的时间段。
  9. 根据权利要求7或8所述的方法，其特征在于，所述公共控制信道包括多个时隙，每个时隙包括第一阶段和第二阶段，所述第一阶段用于接收所述第一站点发送的传输需求帧，所述第二阶段用于向所述第一站点发送所述第一传输分配帧，所述第一传输分配帧所指示的所述至少一个第一时间段包含于所述第二阶段所在时隙的下一个时隙中。
  10. 根据权利要求7至9任一项所述的方法，其特征在于，所述第一传输分配帧还包括上下行指示信息和业务限制信息中至少一项，所述上下行指示信息用于指示所述至少一个第一数据信道的至少一个第一时间段上进行通信的传输类型，所述传输类型包括下行传输、单用户上行传输、或者多用户上行传输；
    所述业务限制信息用于指示所述第一站点在所述至少一个第一数据信道的至少一个第一时间段上与所述第一接入点进行通信的业务类型。
  11. 根据权利要求7至10任一项所述的方法，所述第一传输分配帧还包括逗留时长指示信息，所述逗留时长指示信息用于指示所述第一站点在未成功接入所述至少一个第一数据信道时的逗留时长。
  12. 根据权利要求7至11任一项所述的方法，其特征在于，所述方法还包括：
    所述第一接入点在所述公共控制信道上接收第二接入点发送的第三传输分配帧，所述第三传输分配帧用于指示第二站点在第二数据信道的第二时间段与所述第二接入点进行通信；
    所述第一接入点根据所述第三传输分配帧更新网络分配矢量NAV表格，所述更新后的NAV表格包括用于指示所述第二数据信道的信道信息，以及用于指示所述第二时间段的时间信息。
  13. 一种无线通信装置，其特征在于，包括：
    收发模块，用于在公共控制信道上接收第一接入点发送的第一传输分配帧，所述第一传输分配帧用于指示站点在第一数据信道的第一时间段与所述第一接入点进行通信；
    处理模块，用于通过所述收发模块在所述第一数据信道的第一时间段与所述第一接入点进行通信；
    所述第一传输分配帧包括信道信息和时间信息，所述信道信息用于指示所述第一数据信道，所述时间信息用于指示所述第一时间段。
  14. 根据权利要求13所述的装置，其特征在于，所述第一传输分配帧还包括上下行指示信息和业务限制信息中至少一项，所述上下行指示信息用于指示所述第一数据信道的第一时间段上进行通信的传输类型，所述传输类型包括下行传输、单用户上行传输、或者多用户上行传输；
    所述业务限制信息用于指示所述第一数据信道的第一时间段上进行通信的业务类型。
  15. 根据权利要求13或14所述的装置，其特征在于，所述处理模块还用于：在所述第一时间段内的逗留时长内或在所述第一时间段内，若未成功接入所述第一数据信道，则切换至所述公共控制信道。
  16. 根据权利要求15所述的装置，其特征在于，所述第一传输分配帧还包括逗留时长指示信息，所述逗留时长指示信息用于指示所述逗留时长。
  17. 根据权利要求13至16任一项所述的装置，其特征在于，传输需求帧包括非周期性业务指示信息和周期性业务指示信息中至少一项，所述非周期性业务指示信息包括业务类型指示信息和至少一个业务类型的待传输数据的大小，所述业务类型指示信息用于指示所述至少一个业务类型，所述周期性业务的信息包括通信流指示信息和至少一个通信流的属性信息，所述通信流指示信息用于指示所述至少一个通信流；
    所述传输需求帧为所述站点在公共控制信道上发送的。
  18. 根据权利要求17所述的装置，其特征在于，所述公共控制信道包括多个时隙，每个时隙包括第一阶段和第二阶段，所述第一阶段用于所述站点在所述第一阶段发送所述传输需求帧，所述第二阶段用于所述站点接收所述第一传输分配帧，所述第一传输分配帧的第一时间段为所述第二阶段所在时隙的下一个时隙中的时间段。
  19. 一种无线通信装置，其特征在于，包括：
    收发模块，用于在公共控制信道上向第一站点发送第一传输分配帧，所述第一传输分配帧用于指示所述第一站点在至少一个第一数据信道的至少一个第一时间段与所述无线通信装置进行通信；
    处理模块，用于通过收发模块在所述至少一个第一数据信道的至少一个第一时间段与所述第一站点进行通信；
    所述第一传输分配帧包括至少一个信道信息和至少一个时间信息，每个信道信息用于指示一个第一数据信道，每个时间信息用于指示一个第一时间段。
  20. 根据权利要求19所述的装置，其特征在于，所述收发模块用于在所述公共控制信道上的发送窗口内向所述第一站点发送所述第一传输分配帧；
    所述发送窗口的时长小于第一预设时长T，所述发送窗口的结束点为所述至少一个第一时间段中最远的第一时间段的起始点；或者，所述发送窗口的时长小于第二预设时长L，所述发送窗口的结束点为已分配时间段的结束点，所述已分配时间段为所述无线通信装置在发送所述第一传输分配帧之前发送的第二传输分配帧所指示的进行通信的时间段。
  21. 根据权利要求19或20所述的装置，其特征在于，所述公共控制信道包括多个时隙，每个时隙包括第一阶段和第二阶段，所述第一阶段用于接收所述第一站点发送的传输需求帧，所述第二阶段用于向所述第一站点发送所述第一传输分配帧，所述第一传输分配帧所指示的所述至少一个第一时间段包含于所述第二阶段所在时隙的下一个时隙中。
  22. 根据权利要求19至21任一项所述的装置，其特征在于，所述第一传输分配帧还包括上下行指示信息和业务限制信息中至少一项，所述上下行指示信息用于指示所述至少一个第一数据信道的至少一个第一时间段上进行通信的传输类型，所述传输类型包括下行传输、单用户上行传输、或者多用户上行传输；
    所述业务限制信息用于指示所述第一站点在所述至少一个第一数据信道的至少一个第一时间段上与所述无线通信装置进行通信的业务类型。
  23. 根据权利要求19至22任一项所述的装置，所述传输分配帧还包括逗留时长指示信息，所述逗留时长指示信息用于指示所述第一站点在未成功接入所述至少一个第一数据信道时的逗留时长。
  24. 根据权利要求19至23任一项所述的装置，其特征在于，所述收发模块还用于：在所述公共控制信道上接收第二接入点发送的第三传输分配帧，所述第三传输分配帧用于指示第二站点在第二数据信道的第二时间段与所述第二接入点进行通信；
    所述处理模块还用于根据所述第三传输分配帧更新网络分配矢量NAV表格，所述更新后的NAV表格包括用于指示所述第二数据信道的信道信息，以及用于指示所述第二时间段的时间信息。
  25. 一种装置，包括处理器，所述处理器与存储器耦合，所述处理器用于执行所述存储器中的指令以使得所述装置实现权利要求1至12中任一项所述的方法。
  26. 一种计算机可读存储介质，包括用于实现所述权利要求1至12中任一项所述的方法的计算机程序。
  27. 一种装置，包括处理器和存储器，所述存储器用于存储指令，所述处理器用于执行所述指令，以使得所述装置实现权利要求1至12中任一项所述的方法。
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