WO2017036375A1 - 一种数据传输方法、接入点、站点 - Google Patents

一种数据传输方法、接入点、站点 Download PDF

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Publication number
WO2017036375A1
WO2017036375A1 PCT/CN2016/097233 CN2016097233W WO2017036375A1 WO 2017036375 A1 WO2017036375 A1 WO 2017036375A1 CN 2016097233 W CN2016097233 W CN 2016097233W WO 2017036375 A1 WO2017036375 A1 WO 2017036375A1
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WO
WIPO (PCT)
Prior art keywords
radio frame
frame
address
access point
station
Prior art date
Application number
PCT/CN2016/097233
Other languages
English (en)
French (fr)
Inventor
李楠
吕开颖
邢卫民
韩志强
孙波
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201510658707.6A external-priority patent/CN106488575B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP23197654.9A priority Critical patent/EP4311144A3/en
Priority to US15/754,459 priority patent/US10624154B2/en
Priority to ES16840804T priority patent/ES2862196T3/es
Priority to EP16840804.5A priority patent/EP3337269B1/en
Priority to EP21164121.2A priority patent/EP3883324B1/en
Publication of WO2017036375A1 publication Critical patent/WO2017036375A1/zh
Priority to US16/847,162 priority patent/US11457504B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a data transmission method, an access point, and a station in a wireless local area network.
  • WLAN wireless local area network
  • the WLAN network load is also increasing.
  • the efficiency of the WLAN network is significantly reduced due to the dense network scenario.
  • multi-user parallel transmission has become an alternative technology for solving network efficiency, which has attracted extensive attention and research.
  • the multi-user parallel transmission technology includes a multi-user multiple-input multiple-output (MU-MIMO) technology, and orthogonal frequency division multiple access (OFDMA) Technology, etc.
  • MU-MIMO utilizes spatial multiplexing techniques to increase time and frequency utilization.
  • OFDMA orthogonal frequency division multiple access
  • MU-MIMO utilizes spatial multiplexing techniques to increase time and frequency utilization.
  • OFDMA technology enables multiple sites to be frequency-multiplexed over the entire bandwidth, which can more effectively utilize the results of inter-site frequency selection to improve spectrum utilization.
  • multiple non-AP STAs simultaneously send data to an access point (AP, Access Point), which is generally referred to as an uplink multi-user (UL MU, Up Link Multi-User).
  • AP access point
  • UL MU Up Link Multi-User
  • the transmission (the user is equivalent to the site), the AP sends data to multiple non-AP STAs at the same time, which is called downlink multi-user (DL MU, Down Link Multi-User transmission.
  • DL MU Down Link Multi-User transmission.
  • a typical uplink and downlink multi-user transmits a frame exchange sequence as shown in the figure. 1 is shown.
  • the UL MU transmission requires the AP to trigger, for example, it can send a separate trigger frame to trigger, or trigger in a manner that carries the trigger information field in the radio frame.
  • the trigger frame or the trigger information field includes scheduling information of the station, such as identification information of the station, time and frequency resource information used by the station for uplink transmission, and the like.
  • the station receives the trigger frame or the trigger information field. If its own identification information is carried in it, it indicates that it is scheduled to be transmitted in this UL MU transmission. If it needs to send data, it is in the office. Data is sent on the allocated time and frequency resources.
  • a separate trigger frame or a radio frame carrying a trigger information field is collectively referred to as a trigger frame.
  • an AP and a plurality of non-AP STAs associated with the AP form a Basic Service Set (BSS).
  • BSS Basic Service Set
  • an AP can open a BSS, and the BSS ID of the BSS is the Media Access Control (MAC) address of the AP.
  • MAC Media Access Control
  • the WLAN allows one AP to configure multiple BSSs. As shown in FIG. 2, the multiple BSSs together with the BSSs whose APs have the BSSIDs of the BSSIDs constitute the BSS set of the APs, and each BSS in the set can be separately Make service and security policy settings.
  • ISM Industrial Scientific Medical
  • the security policy of the BSS used by the visitor can be set to Wired Equivalent Privacy (WEP), and the security policy of the BSS used by the internal employees of the enterprise can be set as the secure access of the Wi-Fi network. 2 (WPA2, Wi-Fi Protected Access 2), etc.
  • WEP Wired Equivalent Privacy
  • WPA2 Wi-Fi Protected Access 2
  • a plurality of BSSs actually correspond to one physical AP, and the AP broadcasts a parameter set of its own BSS set in a beacon frame.
  • the BSS parameter set includes a BSSID and an SSID of the BSS.
  • Ability information etc.
  • an AP may trigger any station under its own BSS set to perform uplink multi-user transmission.
  • how to use the trigger frame for uplink multi-user transmission, and the uplink multi-user transmission frame exchange sequence How to proceed is a technical problem that needs to be solved urgently.
  • an embodiment of the present invention provides a data transmission method, an access point, and a station.
  • the data transmission method provided by the embodiment of the present invention is applied to an access point, and the method includes:
  • the radio frame carries indication information, where the indication information is used to indicate whether the current radio frame is a multi-basic service set trigger frame.
  • the indication information is carried in a physical layer signaling domain of the radio frame or in a MAC layer signaling domain of the radio frame.
  • the indication information carried in the MAC layer signaling domain is a frame type.
  • the method further includes:
  • the transmission address of the radio frame is set as a public address.
  • the public address is a MAC address of the access point, or a BSSID of an arbitrary BSS in a basic service set of the access point, or a MAC address of the access point. The value obtained by the operation.
  • the operation is to intercept the high n bits of the MAC address of the access point, and set the low m bits to 0, where m and n are integers greater than or equal to zero, and the sum of n and m is 48. .
  • the operation is to reverse the value of the highest i-bit of the MAC address of the access point, that is, set the value of the highest i-bit of the MAC address of the access point to 0. , 0 is set to 1, where i is an integer greater than or equal to 1.
  • the method further includes:
  • the value obtained by the operation of the MAC address of the access point is sent to the station, or parameters required for the operation are sent to the station.
  • the method further includes:
  • the station Sending, to the station, a BSS parameter set of the access point before transmitting the radio frame, the BSS parameter set including at least a BSSID of a BSS in a BSS set of the access point.
  • the method further includes:
  • an acknowledgement frame is sent to the station.
  • the method further includes:
  • the transmission address of the acknowledgement frame is set as a public address.
  • the method further includes:
  • the sending address of the acknowledgment frame is set to the BSS to which the station belongs. BSSID.
  • the method further includes:
  • the transmission address is set to the BSSID of the BSS to which the station belongs.
  • a data transmission method provided by another embodiment of the present invention is applied to a site, and the method includes:
  • the method further includes:
  • the method further includes:
  • the method after the receiving the radio frame sent by the access point, the method further includes:
  • Determining a frame type of the radio frame determining a receiving address of the radio frame, determining a sending address of the radio frame, and determining whether the location information of the station is included in the radio frame.
  • the radio frame when the frame type of the radio frame is a trigger frame, and the sending address of the radio frame is a public address, and the receiving address of the radio frame is a broadcast address, and the radio frame includes the
  • the identification information of the site is described, uplink multi-user transmission is performed in response to the radio frame.
  • the method after the receiving the radio frame sent by the access point, the method further includes:
  • Determining the indication information in the radio frame determining a reception address of the radio frame, determining a transmission address of the radio frame, and determining whether the radio frame includes identification information of the station;
  • the indication information is carried in a physical layer signaling domain of the radio frame and indicates that the radio frame is a multi-base service set trigger frame, and a sending address of the radio frame is a public address, and the radio frame is
  • the receiving address is a broadcast address, and the identifier information of the station is included in the radio frame, the uplink multi-user transmission is performed in response to the radio frame;
  • the indication information is carried in a MAC layer signaling domain of the radio frame and indicates that the radio frame is a multi-base service set trigger frame, and a sending address of the radio frame is a public address, and the radio frame is When the receiving address is a broadcast address, and the radio frame includes the identifier information of the station, the uplink multi-user transmission is performed in response to the radio frame.
  • the method further includes:
  • the reception address of the transmitted response frame is set to the BSSID of the BSS to which the station belongs.
  • the method further includes:
  • the access point provided by the embodiment of the present invention has multiple different basic service sets, and the access point includes:
  • a first sending unit configured to send a radio frame to multiple sites, triggering the station to perform uplink multi-user transmission, and when the station belongs to different basic service sets of the access point, sending a sending address of the radio frame Set to a public address.
  • the radio frame when the station belongs to different basic service sets of the access point, the radio frame carries indication information, where the indication information is used to indicate whether the current radio frame is a multi-base service set trigger frame. .
  • the indication information is carried in a physical layer signaling domain of the radio frame or in a MAC layer signaling domain of the radio frame.
  • the indication information carried in the MAC layer signaling domain is a frame type.
  • the access point further includes:
  • the first setting unit is configured to set the transmission address of the radio frame as a public address when the indication information indicates that the radio frame is a multi-base service set trigger frame.
  • the public address is a MAC address of the access point, or a BSSID of an arbitrary BSS in a basic service set BSS set of the access point, or a MAC address of the access point. The value obtained by the operation.
  • the operation is to intercept the high n bits of the MAC address of the access point, and set the low m bits to 0, where m and n are integers greater than or equal to zero, and the sum of n and m is 48.
  • the operation is to reverse the value of the highest i-bit of the MAC address of the access point, that is, set the value of the highest i-bit of the MAC address of the access point to 0. , 0 is set to 1, where i is an integer greater than or equal to 1.
  • the access point further includes:
  • the second sending unit is configured to send a value obtained by the operation of the MAC address of the access point to the station before sending the radio frame, or send parameters required for the operation to the station.
  • the access point further includes:
  • a third sending unit configured to send, to the station, a BSS parameter set of the access point before transmitting the radio frame, where the BSS parameter set includes at least a BSS in a BSS set of the access point BSSID.
  • the access point further includes:
  • a receiving unit configured to receive a response frame sent by the station to the radio frame
  • a fourth sending unit configured to: when the receiving unit receives the response frame sent by the station to the radio frame, send an acknowledgement frame to the station.
  • the access point further includes:
  • a second setting unit configured to: when the acknowledgement frame is sent to a site under a different BSS of the access point, and the acknowledgement frame is a multi-site acknowledgement frame whose receive address is a broadcast address, send the acknowledgement frame Set to a public address.
  • the access point further includes:
  • a third setting unit configured to send the confirmation when a site under the same BSS of the access point a frame, and when the acknowledgement frame is a multi-site acknowledgment frame whose address is a broadcast address, the transmission address of the acknowledgment frame is set to the BSSID of the BSS to which the station belongs.
  • the access point further includes:
  • the fourth setting unit is configured to set the sending address to the BSSID of the BSS to which the station belongs when the following line multi-user transmission mode sends the confirmation frame to the station.
  • a receiving unit configured to receive a radio frame sent by the access point, where the radio frame is used to trigger the station to perform uplink multi-user transmission;
  • the transmission unit is set to perform uplink multi-user transmission.
  • the site further includes:
  • the first obtaining unit is configured to acquire a BSS parameter set of the access point before receiving the radio frame.
  • the site further includes:
  • the second obtaining unit is configured to acquire a value obtained by the operation of the MAC address of the access point or obtain a parameter required for the operation before receiving the wireless frame.
  • the site further includes:
  • a first determining unit configured to determine a frame type of the radio frame, and determine a receiving address of the radio frame, and determine a sending address of the radio frame, and determine whether the identifier of the station is included in the radio frame information.
  • the site further includes:
  • a first response unit configured to: when a frame type of the radio frame is a trigger frame, and a sending address of the radio frame is a public address, and a receiving address of the radio frame is a broadcast address, and the When the identification information of the station is included in the radio frame, the radio frame is responded to, thereby performing uplink multi-user transmission.
  • the site further includes:
  • a second determining unit configured to determine indication information in the radio frame, and determine a receiving address of the radio frame, and determine a sending address of the radio frame, and determine whether the station is included in the radio frame Identification information;
  • a second response unit configured to: when the indication information is carried in a physical layer signaling domain of the radio frame, and indicating that the radio frame is a multi-base service set trigger frame, and a sending address of the radio frame is a public address And the receiving address of the radio frame is a broadcast address, and when the radio frame includes the identifier information of the station, performing uplink multi-user transmission in response to the radio frame; or setting, when the indication information is carried In a MAC layer signaling domain of the radio frame, and indicating that the radio frame is a multi-base service set trigger frame, and a sending address of the radio frame is a public address, and a receiving address of the radio frame is a broadcast address, And when the radio frame includes the identifier information of the station, performing uplink multi-user transmission in response to the radio frame.
  • the site further includes:
  • the setting unit is configured to set the receiving address of the transmitted response frame to the BSSID of the BSS to which the station belongs when the uplink multi-user transmission is set.
  • the access point sends a radio frame to multiple sites, triggering the site to perform uplink multi-user transmission, and when the site belongs to different basic service sets of the access point,
  • the transmission address of the wireless frame is set to the public address.
  • 1 is a schematic diagram of multi-user parallel transmission frame exchange
  • FIG. 2 is a schematic diagram of multiple BSSs under one AP
  • FIG. 3 is a schematic flowchart 1 of a data transmission method according to an embodiment of the present invention.
  • FIG. 4 is a second schematic flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of address setting according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of address setting according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic diagram of address setting according to Embodiment 4 of the present invention.
  • FIG. 8 is a schematic diagram of address setting according to Embodiment 5 of the present invention.
  • FIG. 9 is a schematic diagram of address setting according to Embodiment 6 of the present invention.
  • FIG. 10 is a schematic structural diagram of an access point according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a station according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart 1 of a data transmission method according to an embodiment of the present invention.
  • the data transmission method in this example is applied to an access point.
  • the data transmission method includes the following steps:
  • Step 301 Send a radio frame to multiple sites, trigger the site to perform uplink multi-user transmission, and set the sending address of the radio frame to a public address when the site belongs to different basic service sets of the access point. .
  • the radio frame carries indication information, where the indication information is used to indicate whether the current radio frame is a multi-basic service set trigger frame.
  • the indication information is carried in a physical layer signaling domain of the radio frame or carried in a MAC layer signaling domain of the radio frame;
  • the indication information carried in the MAC layer signaling domain is a frame type.
  • the method further includes:
  • the indication information indicates that the radio frame is a multi-base service set trigger frame, setting a transmission address of the radio frame as a public address;
  • the public address is a MAC address of the access point, or a BSSID of an arbitrary BSS in a basic service set set of the access point, or a value obtained by an operation of a MAC address of the access point;
  • the operation is to intercept the high n bits of the MAC address of the access point and set the low m bits to 0, where m and n are integers greater than or equal to zero, and the sum of n and m is 48. .
  • the operation is to intercept the w bits at the predefined location of the MAC address of the access point and set the other bits to 0, where w is a positive integer greater than zero.
  • the operation is to reversely set the value of the highest i bit of the MAC address of the access point, that is, set 1 of the highest i bit to 0, and 0 to 1, where i Is an integer greater than or equal to 1.
  • the method further includes:
  • the value obtained by the operation of the MAC address of the access point is sent to the station, or parameters required for the operation are sent to the station.
  • the method further includes:
  • the station Sending, to the station, a BSS parameter set of the access point before transmitting the radio frame, the BSS parameter set including at least a BSSID of a BSS in a BSS set of the access point.
  • the method further includes:
  • an acknowledgement frame is sent to the station.
  • the method further includes:
  • the transmission address of the acknowledgement frame is set as a public address.
  • the method further includes:
  • the sending address of the acknowledgment frame is set to the BSS to which the station belongs. BSSID.
  • the method further includes:
  • the transmission address is set to the BSSID of the BSS to which the station belongs.
  • FIG. 4 is a schematic flowchart 2 of a data transmission method according to an embodiment of the present invention.
  • the data transmission method in this example is applied to a station. As shown in FIG. 4, the data transmission method includes the following steps:
  • Step 401 Receive a radio frame sent by an access point, where the radio frame is used to trigger the station to perform uplink multi-user transmission.
  • the method further includes:
  • the method further includes:
  • the method after the receiving the radio frame sent by the access point, the method further includes:
  • Determining a frame type of the radio frame determining a receiving address of the radio frame, determining a sending address of the radio frame, and determining whether the location information of the station is included in the radio frame.
  • the radio frame type of the radio frame is a trigger frame
  • the sending address of the radio frame is a public address
  • the receiving address of the radio frame is a broadcast address
  • the radio frame includes the identifier information of the station. Responding to the radio frame for uplink multi-user transmission.
  • the method after the receiving the radio frame sent by the access point, the method further includes:
  • Determining the indication information in the radio frame determining a reception address of the radio frame, determining a transmission address of the radio frame, and determining whether the radio frame includes identification information of the station;
  • the indication information is carried in a physical layer signaling domain of the radio frame and indicates that the radio frame is a multi-base service set trigger frame, and a sending address of the radio frame is a public address, and
  • the receiving address of the radio frame is a broadcast address, and the radio frame includes the identifier information of the station, performing uplink multi-user transmission in response to the radio frame;
  • the indication information is carried in a MAC layer signaling domain of the radio frame and indicates that the radio frame is a multi-base service set trigger frame, and a sending address of the radio frame is a public address, and the radio frame is When the receiving address is a broadcast address, and the radio frame includes the identifier information of the station, the uplink multi-user transmission is performed in response to the radio frame.
  • the method further includes:
  • the reception address of the transmitted response frame is set to the BSSID of the BSS to which the station belongs.
  • Step 402 Perform uplink multi-user transmission.
  • the AP notifies itself to support multiple BSS capabilities in the Beacon and Probe Response frames sent by itself, and carries its own BSS parameter set in the Beacon and Probe Response frames.
  • the AP supports a maximum of 2 m BSS, and m is an integer greater than or equal to zero. Assuming that the value of m is 2, the AP can support up to 4 BSSs.
  • the AP establishes a BSS:BSS0 with its own MAC address as the BSSID, and configures three BSSs: BSS1, BSS2, and BSS3, respectively, which are configured with BSSID and SSID. , as well as other capability information parameters.
  • the AP broadcasts the BSSID, SSID, and capability information corresponding to the three BSSs configured in the Beacon and Probe Response frames.
  • the AP also needs to notify the value of the site m.
  • the sending address of the Beacon and Probe Response frames themselves is the MAC address of the AP, that is, the BSSID of the BSS0.
  • the AP sends a trigger frame to multiple sites, triggering multiple sites for uplink multi-user transmission.
  • the plurality of stations belong to BSS1, BSS2, and BSS3, respectively, and the transmission address of the trigger frame is set to a public address.
  • the public address may be the MAC address of the AP, that is, BSSID0, or one of BSSID1, BSSID2, and BSSID3, or may be a value obtained by the operation of BSSID0.
  • use m to intercept the MAC address of the AP take the high n bits, and set the low m bits to 0, and the sum of n and m is 48.
  • the station After receiving the trigger frame, the station determines that the frame is a trigger frame, and the sending address is a public address stored locally, for example, a value in BSSID0 to BSSID3, or a high 44 bits + 4 zeros of BSSID0, and the receiving address is Broadcast address, and its own identification information is included in the frame, then the site responds to the trigger frame for uplink multi-user transmission.
  • the receiving address is set to the BSSID of the BSS to which it belongs.
  • the station may multiplex the time period in which other BSSs transmit data, but since all stations in BSS0 to BSS4 are actually associated with the AP, when the station receives a radio frame, and the sending address or receiving address in the frame is AP.
  • the station cannot perform channel multiplexing operation.
  • the AP receives the uplink multi-user data and needs to reply to the acknowledgement frame for confirmation.
  • the stations are respectively from multiple BSSs, and the AP replies with a multi-site acknowledgment frame, and the receiving address of the frame It is a broadcast address, and the AP sets the transmission address of the confirmation frame as a public address. Similar to the receipt of the trigger frame, the station judges and receives the confirmation frame and obtains the confirmation information.
  • the AP sends a trigger frame to multiple sites, triggering multiple sites for uplink multi-user transmission.
  • the plurality of stations belong to BSS1, BSS2, and BSS3, respectively, and the transmission address of the trigger frame is set to a public address.
  • the public address is to reverse the value of the highest bit of the MAC address of the access point, that is, the highest value of the highest bit is 0, indicating that it is the MAC address of the access point, and the highest bit is after the value is inverted.
  • the value changes to 1, indicating that the address is a public address.
  • the station After receiving the trigger frame, the station determines that the frame is a trigger frame, and the highest address of the sending address is opposite to BSSID0, and the other bits are the same, then it is determined that this is the public address of the BSS to which the station belongs, when the receiving address is the broadcast address, and The identification information is included in the frame, and the site responds to the trigger frame for uplink multi-user transmission. If the identification information is not included in the frame, but the trigger frame is a random access resource allocation trigger frame, the station may perform contention access on the random access resource, and if the competition succeeds, the uplink data may be sent. When the station performs uplink transmission, the receiving address is set to the BSSID of the BSS to which it belongs.
  • the AP sends a trigger frame to multiple sites, triggering multiple sites for uplink multi-user transmission.
  • the plurality of stations belong to BSS1, BSS2, and BSS3, respectively, and the transmission address of the trigger frame is set to a public address.
  • the public address is the MAC address of the AP, that is, BSSID0.
  • the trigger frame carries an indication message indicating whether the current trigger frame is a multiple BSS trigger frame.
  • the indication information is located in the physical layer signaling domain, indicated by 1 bit, or located in the MAC layer signaling domain, for example, using a new frame type to indicate whether the current trigger frame is a multiple BSS trigger frame.
  • the station After receiving the trigger frame, the station determines that the frame is a multiple BSS trigger frame, the sending address is a public address stored locally, the receiving address is a broadcast address, and the identifier information of the user is included in the frame, and the site responds to the trigger frame.
  • the receiving address is set to the BSSID of the BSS to which it belongs.
  • the AP sends a trigger frame to multiple sites (STA1, STA2, STA3, and STA4), and triggers multiple sites for uplink multi-user transmission.
  • the plurality of stations belong to BSS1, BSS2, BSS0, and BSS3, respectively, and the transmission address of the trigger frame is set to a public address.
  • the site has obtained the Beacon or Probe Response frame sent by the AP and obtained the BSS parameter set.
  • the station determines that the frame is a trigger frame, and the sending address is a public address stored locally. For example, the high 44 bits + 4 zeros of the BSSID0, the receiving address is a broadcast address, and the own identification information is included in the frame.
  • the station responds to the trigger frame for uplink multi-user transmission.
  • the receiving address of the Application Protocol Data Unit (PPDU) packet is set to the BSSID of the BSS to which it belongs.
  • PPDU Application Protocol Data Unit
  • the AP receives the uplink multi-user data and needs to reply to the acknowledgement frame for confirmation.
  • the stations are respectively from multiple BSSs, and the AP transmits the acknowledgement frame in the downlink multi-user manner, and the acknowledgement frame of each station occupies one subchannel and simultaneously transmits, and the acknowledgement frame (BA) is received.
  • the address is the address of each station, and the sending address is the BSSID of the BSS associated with the station.
  • the AP sends a trigger frame to multiple sites (STA1, STA2, STA3, and STA4), and triggers multiple sites for uplink multi-user transmission.
  • the site has obtained the Beacon or Probe Response frame sent by the AP and obtained the BSS parameter set.
  • the station determines that the frame is a trigger frame, and the sending address is a public address stored locally. For example, the high 44 bits + 4 zeros of the BSSID0, the receiving address is a broadcast address, and the own identification information is included in the frame.
  • the station responds to the trigger frame for uplink multi-user transmission.
  • the receiving address of the PPDU data packet is set to the BSSID of the BSS to which it belongs.
  • the AP receives the uplink multi-user data and needs to reply to the acknowledgement frame for confirmation.
  • the stations are from BSS1 and BSS2, respectively, the AP sends a multi-site acknowledgment frame for the station from BSS1, and sends a multi-site acknowledgment frame for the station from BSS2, and the two multi-site acknowledgment frames adopt downlink multi-user The mode is sent in parallel.
  • Each acknowledgment frame occupies one subchannel, and the receiving address of each acknowledgment frame is the address of each station, and the BSSID of the BSS associated with the address station is sent.
  • the AP sends an empty packet indication (NDPA, Null Data Packet).
  • Announcement frames, NDP frames and trigger frames are sent to multiple stations (STA1, STA2, STA3, STA4).
  • NDPA frames are used to trigger multiple stations for channel measurement.
  • the measured frame is the NPD frame sent immediately after the NDPA frame.
  • the trigger frame is used to trigger multiple sites for uplink multi-user feedback, which may be a trigger frame dedicated to triggering or a Sounding Poll frame. If the multiple sites belong to the same BSS, for example, BSS1, the transmission address of the NDPA frame and the trigger frame is set to BSSID1 of BSS1.
  • the transmission address of the NDPA frame and the trigger frame is set to a public address.
  • the site has obtained the Beacon or Probe Response frame sent by the AP and obtained the BSS parameter set.
  • the station determines that the frame is an NDPA frame, and the sending address is a public address stored locally by itself, for example, BSSID0, or the upper 44 bits + 4 zeros of the BSSID0, the receiving address is a broadcast address, and its own identifier
  • the information is included in the frame and the station performs channel measurements.
  • the station determines that the frame is triggered, and the sending address is the BSSID of the BSS to which the user belongs.
  • the receiving address is a broadcast address, and the own identification information is included in the frame, and the station responds to the trigger frame and reports the channel measurement.
  • the receiving address of the data frame carrying the measurement report is set to the BSSID of the BSS to which it belongs.
  • the AP sends the downlink data
  • the AP sends a Multi-user Block ACK Request (MU-BAR), and the requesting station confirms the received downlink data, and Send an acknowledgement frame.
  • MU-BAR Multi-user Block ACK Request
  • the station After receiving the multi-user acknowledgment request frame, the station determines the frame type, and the sending address is a public address stored locally, for example, BSSID0, or the upper 44 bits + 4 zeros of the BSSID0, the receiving address is a broadcast address, and its own identifier
  • the information is included in the frame, and the station transmits an acknowledgement frame to confirm the received downlink data in response to the frame.
  • FIG. 10 is a schematic structural diagram of an access point according to an embodiment of the present invention.
  • the access point provided by the embodiment of the present invention has multiple different basic service sets. As shown in FIG. 10, the access point includes:
  • the first sending unit 91 is configured to send a radio frame to multiple sites, trigger the station to perform uplink multi-user transmission, and send the radio frame when the station belongs to different basic service sets of the access point.
  • the address is set to a public address.
  • the radio frame carries indication information, where the indication information is used to indicate whether the current radio frame is a multi-basic service set trigger frame.
  • the indication information is carried in a physical layer signaling domain of the radio frame or in a MAC layer signaling domain of the radio frame.
  • the indication information carried in the MAC layer signaling domain is a frame type.
  • the access point further includes:
  • the first setting unit 92 is configured to set the sending address of the radio frame as a public address when the indication information indicates that the radio frame is a multi-base service set trigger frame.
  • the public address is a MAC address of the access point, or a BSSID of an arbitrary BSS in a basic service set BSS set of the access point, or a value obtained by an operation of a MAC address of the access point.
  • the operation is to intercept the high n bits of the MAC address of the access point, and set the low m bits to 0, where m and n are integers greater than or equal to zero, and the sum of n and m is 48. .
  • the operation is to reversely set the value of the highest i-bit of the MAC address of the access point, where i is an integer greater than or equal to 1.
  • the access point further includes:
  • the second sending unit 93 is configured to send, after sending the radio frame, a value obtained by calculating the MAC address of the access point to the station, or send parameters required for the operation to the site .
  • the access point further includes:
  • the third sending unit 94 is configured to send, to the station, a BSS parameter set of the access point before transmitting the radio frame, where the BSS parameter set includes at least a BSS in a BSS set of the access point. BSSID.
  • the access point further includes:
  • the receiving unit 95 is configured to receive a response frame sent by the station to the radio frame.
  • the fourth sending unit 96 is configured to send an acknowledgement frame to the station when the receiving unit 95 receives the response frame sent by the station to the radio frame.
  • the access point further includes:
  • the second setting unit 97 is configured to send the acknowledgement frame when the acknowledgement frame is sent to a site under a different BSS of the access point, and the acknowledgement frame is a multi-site acknowledgement frame whose address is a broadcast address.
  • the address is set to a public address.
  • the access point further includes:
  • the third setting unit 98 is configured to send the acknowledgement frame when the acknowledgement frame is sent to a site under the same BSS of the access point, and the acknowledgement frame is a multi-site acknowledgement frame whose receive address is a broadcast address.
  • the address is set to the BSSID of the BSS to which the site belongs.
  • the access point further includes:
  • the fourth setting unit 99 is configured to set the sending address to the BSSID of the BSS to which the station belongs when the following multi-user transmission mode transmits the confirmation frame to the station.
  • each unit in the access point shown in FIG. 10 can be implemented by a program running on a processor, or can be implemented by a specific logic circuit.
  • FIG. 11 is a schematic structural diagram of a site according to an embodiment of the present invention. As shown in FIG. 11, the site includes:
  • the receiving unit 11 is configured to receive a radio frame sent by the access point, where the radio frame is used to trigger the station to perform uplink multi-user transmission;
  • the transmission unit 12 is configured to perform uplink multi-user transmission.
  • the site further includes:
  • the first obtaining unit 13 is configured to acquire the access point before receiving the radio frame BSS parameter set.
  • the site further includes:
  • the second obtaining unit 14 is configured to acquire a value obtained by the operation of the MAC address of the access point or obtain a parameter required for the operation before receiving the radio frame.
  • the site further includes:
  • the first determining unit 15 is configured to determine a frame type of the radio frame, and determine a receiving address of the radio frame, and determine a sending address of the radio frame, and determine whether the station is included in the radio frame. Identification information;
  • the first response unit 16 is configured to: when the frame type of the radio frame is a trigger frame, and the sending address of the radio frame is a public address, and the receiving address of the radio frame is a broadcast address, and the radio frame is in the radio frame When the identification information of the station is included, the wireless frame is responded to, thereby performing uplink multi-user transmission.
  • the site further includes:
  • the second determining unit 17 is configured to determine indication information in the radio frame, and determine a receiving address of the radio frame, and determine a sending address of the radio frame, and determine whether the station is included in the radio frame Identification information.
  • the site further includes:
  • the second response unit 18 is configured to: when the indication information is carried in a physical layer signaling domain of the radio frame and indicate that the radio frame is a multi-base service set trigger frame, and the sending address of the radio frame is a public An address, and the receiving address of the radio frame is a broadcast address, and when the radio frame includes the identifier information of the station, performing uplink multi-user transmission in response to the radio frame; or setting, when the indication information is Carrying in the MAC layer signaling domain of the radio frame and indicating The radio frame is a multi-base service set triggering frame, and the sending address of the radio frame is a public address, and the receiving address of the radio frame is a broadcast address, and the radio frame includes the identifier information of the station. And performing uplink multi-user transmission in response to the radio frame.
  • the site further includes:
  • the setting unit 19 is configured to set the receiving address of the transmitted response frame to the BSSID of the BSS to which the station belongs when the uplink multi-user transmission is performed.
  • the implementation functions of the units in the station shown in FIG. 11 can be understood by referring to the related description of the foregoing data transmission method.
  • the functions of the units in the station shown in FIG. 11 can be implemented by a program running on a processor, or can be realized by a specific logic circuit.
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated.
  • the components displayed as the unit may be, or may not be, physical units, that is, may be located in one place, or may be distributed to multiple network units; some or all of the units may be selected according to actual needs to implement the solution of the embodiment. purpose.
  • each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • a data transmission method, an access point, and a station provided by the embodiments of the present invention have the following beneficial effects: an access point sends a radio frame to multiple sites, and triggers the site to perform uplink multi-user transmission, when When the station belongs to different basic service sets of the access point, the sending address of the radio frame is set as a public address. Therefore, the access point can trigger the uplink multi-user transmission of each site under the multiple multiple BSSs, thereby improving the air interface usage efficiency and reducing the bandwidth waste.

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Abstract

本发明公开了一种数据传输方法、接入点、站点，所述方法包括：发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。

Description

一种数据传输方法、接入点、站点 技术领域
本发明涉及无线通信技术，尤其涉及无线局域网中的一种数据传输方法、接入点、站点。
背景技术
随着无线局域网络(WLAN，Wireless Local Area Networks)产业的不断扩大，WLAN网络负载也在不断加重，且随着用户数目的增多，密集网络场景造成WLAN网络效率明显下降，单纯提高传输速率并不能解决该问题，多用户并行传输作为解决网络效率的一种备选技术，引起了广泛关注和研究。
现有技术中，多用户并行传输技术包括多用户多入多出技术(MU-MIMO，Multi-User Multiple-Input Multiple-Output)技术，正交频分多址(OFDMA，Orthogonal Frequency Division Multiple Access)技术等。MU-MIMO利用空间复用技术提高了时间和频率的利用率。OFDMA技术的引入使得多个站点在整个带宽上频分复用，能更有效地利用站点间频率选择的结果提高频谱利用率。
在WLAN中，多个非接入点站点(non-AP STA)同时向接入点(AP，Access Point)发送数据，一般称为上行多用户(UL MU，Up Link Multi-User) 传输(用户等同于站点)，AP同时给多个non-AP STA发送数据，称之为下行多用户(DL MU，Down Link Multi-User传输。典型的上下行多用户传输一个帧交换序列如图1所示。
UL MU传输需要AP进行触发，例如可以发送单独的触发帧来触发，或者采用在无线帧中携带触发信息域的方式触发。触发帧或者触发信息域中包括站点的调度信息，如站点的标识信息、站点进行上行传输所使用的时间和频率资源信息等。AP发送触发帧或触发信息域之后，站点接收触发帧或触发信息域，如果自己的标识信息携带在其中，则表示自己被调度在本次UL MU传输中，若自己有待发送数据，则在所分配的时间和频率资源上进行数据发送。以下将单独的触发帧或者携带触发信息域的无线帧统称为触发帧。
WLAN中，一个AP以及与该AP相关联的多个non-AP STA组成一个基本服务集(BSS，Basic Service Set)。一般情况下，一个AP可以开启一个BSS，该BSS的标识BSSID就是这个AP的介质访问控制(MAC，Media Access Control)地址。出于应用的需要，WLAN允许一个AP配置多个BSS，如图2所示，这多个BSS连同以AP的MAC地址为BSSID的BSS组成AP的BSS集合，该集合中的每个BSS可以分别进行服务和安全策略设置。由于在工业科学医疗(ISM，Industrial Scientific Medical)免许可频段完全不交叠的信道数量较少，每个AP如果单独建立BSS，根据尽量不与其他AP信道重叠的原则，可用信道少，AP之间会形成较大同频及邻频干扰。当允许一个AP配置多个BSS时，相当于相同的信道可以被多个BSS使用，减少了干扰。另外，BSS集合中的多个BSS分别进行服务和安全策略设置，能够 满足企业级布网需求，例如可以将访客使用的BSS的安全策略设置为有线等效保密(WEP，Wired Equivalent Privacy)，将企业内部员工使用的BSS的安全策略设置为Wi-Fi网络安全接入2(WPA2，Wi-Fi Protected Access2)等。多个BSS实际对应的是一个物理AP，该AP在信标帧(Beacon)中广播自己的BSS集合的参数集，对于BSS集合中的每个BSS，BSS参数集包括该BSS的BSSID，SSID，能力信息等。
在多用户并行传输场景下，AP可以触发自己的BSS集合下的任意站点进行上行多用户传输，然而这种情况下，如何利用触发帧进行上行多用户传输，且上行多用户传输的帧交换序列如何进行，是亟待解决的技术问题。
发明内容
为解决上述技术问题，本发明实施例提供了一种数据传输方法、接入点、站点。
本发明实施例提供的数据传输方法应用于接入点，所述方法包括：
发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。
本发明实施例中，所述无线帧中携带指示信息，所述指示信息用于指示当前无线帧是否是多基本服务集触发帧。
本发明实施例中，所述指示信息携带在所述无线帧的物理层信令域中、或者携带在所述无线帧的MAC层信令域中。
本发明实施例中，所述携带在MAC层信令域中的指示信息是帧类型。
本发明实施例中，所述方法还包括：
当所述指示信息指示所述无线帧是多基本服务集触发帧时，将所述无线帧的发送地址设置为公共地址。
本发明实施例中，所述公共地址是所述接入点的MAC地址、或者是所述接入点的基本服务集集合内的任意BSS的BSSID、或者是所述接入点的MAC地址经过运算获得的值。
本发明实施例中，所述运算是截取所述接入点的MAC地址的高n位，并将低m位设置为0，其中m和n为大于等于零的整数，n与m之和为48。
本发明实施例中，所述运算是将所述接入点的MAC地址的最高i位的取值进行反转设置，即将所述接入点的MAC地址的最高i位中的1设置为0，0设置为1，其中i为大于等于1的整数。
本发明实施例中，所述方法还包括：
在发送所述无线帧之前，将所述接入点的MAC地址经过运算获得的值发送给所述站点、或者将所述运算所需的参数发送给所述站点。
本发明实施例中，所述方法还包括：
在发送所述无线帧之前，将所述接入点的BSS参数集发送给所述站点，所述BSS参数集至少包括所述接入点的BSS集合中的BSS的BSSID。
本发明实施例中，所述方法还包括：
接收到所述站点发送的对所述无线帧的响应帧时，向所述站点发送确认帧。
本发明实施例中，所述方法还包括：
当对接入点的不同BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为公共地址。
本发明实施例中，所述方法还包括：
当对接入点的同一BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为所述站点所属BSS的BSSID。
本发明实施例中，所述方法还包括：
当以下行多用户传输方式发送所述确认帧给所述站点时，将发送地址设置为所述站点所属BSS的BSSID。
本发明另一实施例提供的数据传输方法应用于站点，所述方法包括：
接收接入点发送的无线帧，所述无线帧用于触发所述站点进行上行多用户传输；
进行上行多用户传输。
本发明实施例中，所述方法还包括：
在接收所述无线帧之前，获取所述接入点的BSS参数集。
本发明实施例中，所述方法还包括：
在接收所述无线帧之前，获取所述接入点的MAC地址经过运算获得的值、或者获取所述运算需要的参数。
本发明实施例中，所述接收接入点发送的无线帧之后，所述方法还包括：
判断所述无线帧的帧类型，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息。
本发明实施例中，当所述无线帧的帧类型是触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
本发明实施例中，所述接收接入点发送的无线帧之后，所述方法还包括：
判断所述无线帧中的指示信息，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息；
当所述指示信息携带在所述无线帧的物理层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输；或者，
当所述指示信息携带在所述无线帧的MAC层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
本发明实施例中，所述方法还包括：
进行上行多用户传输时，将所传输的响应帧的接收地址设置为所述站点所属的BSS的BSSID。
本发明实施例中，所述方法还包括：
接收到无线帧且当所述无线帧中的BSSID是BSS参数集中的BSSID时，不进行复用传输。
本发明实施例提供的接入点具有多个不同基本服务集，所述接入点包括：
第一发送单元，设置为发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。
本发明实施例中，当所述站点属于所述接入点的不同基本服务集时，所述无线帧中携带指示信息，所述指示信息用于指示当前无线帧是否是多基本服务集触发帧。
本发明实施例中，所述指示信息携带在所述无线帧的物理层信令域中、或者携带在所述无线帧的MAC层信令域中。
本发明实施例中，所述携带在MAC层信令域中的指示信息是帧类型。
本发明实施例中，所述接入点还包括：
第一设置单元，设置为当所述指示信息指示所述无线帧是多基本服务集触发帧时，将所述无线帧的发送地址设置为公共地址。
本发明实施例中，所述公共地址是所述接入点的MAC地址、或者是所述接入点的基本服务集BSS集合内的任意BSS的BSSID、或者是所述接入点的MAC地址经过运算获得的值。
本发明实施例中，所述运算是截取所述接入点的MAC地址的高n位，并将低m位设置为0，其中m和n为大于等于零的整数，n与m之和为 48。
本发明实施例中，所述运算是将所述接入点的MAC地址的最高i位的取值进行反转设置，即将所述接入点的MAC地址的最高i位中的1设置为0，0设置为1，其中i为大于等于1的整数。
本发明实施例中，所述接入点还包括：
第二发送单元，设置为在发送所述无线帧之前，将所述接入点的MAC地址经过运算获得的值发送给所述站点、或者将所述运算所需的参数发送给所述站点。
本发明实施例中，所述接入点还包括：
第三发送单元，设置为在发送所述无线帧之前，将所述接入点的BSS参数集发送给所述站点，所述BSS参数集至少包括所述接入点的BSS集合中的BSS的BSSID。
本发明实施例中，所述接入点还包括：
接收单元，设置为接收所述站点发送的对所述无线帧的响应帧；
第四发送单元，设置为当所述接收单元接收到所述站点发送的对所述无线帧的响应帧时，向所述站点发送确认帧。
本发明实施例中，所述接入点还包括：
第二设置单元，设置为当对接入点的不同BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为公共地址。
本发明实施例中，所述接入点还包括：
第三设置单元，设置为当对接入点的同一BSS下的站点发送所述确认 帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为所述站点所属BSS的BSSID。
本发明实施例中，所述接入点还包括：
第四设置单元，设置为当以下行多用户传输方式发送所述确认帧给所述站点时，将发送地址设置为所述站点所属BSS的BSSID。
本发明实施例提供的站点包括：
接收单元，设置为接收接入点发送的无线帧，所述无线帧用于触发所述站点进行上行多用户传输；
传输单元，设置为进行上行多用户传输。
本发明实施例中，所述站点还包括：
第一获取单元，设置为在接收所述无线帧之前，获取所述接入点的BSS参数集。
本发明实施例中，所述站点还包括：
第二获取单元，设置为在接收所述无线帧之前，获取所述接入点的MAC地址经过运算获得的值、或者获取所述运算需要的参数。
本发明实施例中，所述站点还包括：
第一判断单元，设置为判断所述无线帧的帧类型，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息。
本发明实施例中，所述站点还包括：
第一响应单元，设置为当所述无线帧的帧类型是触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述 无线帧中包括所述站点的标识信息时，响应所述无线帧，从而进行上行多用户传输。
本发明实施例中，所述站点还包括：
第二判断单元，设置为判断所述无线帧中的指示信息，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息；
第二响应单元，设置为当所述指示信息携带在所述无线帧的物理层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输；或者设置为，当所述指示信息携带在所述无线帧的MAC层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
本发明实施例中，所述站点还包括：
设置单元，设置为进行上行多用户传输时，将所传输的响应帧的接收地址设置为所述站点所属的BSS的BSSID。
本发明实施例中，接收到无线帧且当所述无线帧中的BSSID是BSS参数集中的BSSID时，不进行复用传输。
本发明实施例的技术方案中，接入点发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。从而使得接入点能够触 发自己的多BSS下的各个站点进行上行多用户传输，提高了空口使用效率，减少了带宽浪费。
附图说明
图1为多用户并行传输帧交换示意图；
图2为一个AP下的多个BSS的示意图；
图3为本发明实施例的数据传输方法的流程示意图一；
图4为本发明实施例的数据传输方法的流程示意图二；
图5为本发明实施例一的地址设置示意图；
图6为本发明实施例三的地址设置示意图；
图7为本发明实施例四的地址设置示意图；
图8为本发明实施例五的地址设置示意图；
图9为本发明实施例六的地址设置示意图；
图10为本发明实施例的接入点的结构组成示意图；
图11为本发明实施例的站点的结构组成示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
图3为本发明实施例的数据传输方法的流程示意图一，本示例中的数据传输方法应用于接入点，如图3所示，所述数据传输方法包括以下步骤：
步骤301：发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。
本发明实施例中，所述无线帧中携带指示信息，所述指示信息用于指示当前无线帧是否是多基本服务集触发帧。
本发明实施例中，所述指示信息携带在所述无线帧的物理层信令域中、或者携带在所述无线帧的MAC层信令域中；
其中，所述携带在MAC层信令域中的指示信息是帧类型。
本发明实施例中，所述方法还包括：
当所述指示信息指示所述无线帧是多基本服务集触发帧时，将所述无线帧的发送地址设置为公共地址；
所述公共地址是所述接入点的MAC地址、或者是所述接入点的基本服务集集合内的任意BSS的BSSID、或者是所述接入点的MAC地址经过运算获得的值；
在一实施方式中，所述运算是截取所述接入点的MAC地址的高n位，并将低m位设置为0，其中m和n为大于等于零的整数，n与m之和为48。
在另一实施方式中，所述运算是截取所述接入点的MAC地址预定义位置处的其中w位，并将其他位设置为0，其中w为大于零的正整数。
在另一实施方式中，所述运算是将所述接入点的MAC地址的最高i位的取值进行反转设置，即将最高i位中的1设置为0，0设置为1，其中i为大于等于1的整数。
本发明实施例中，所述方法还包括：
在发送所述无线帧之前，将所述接入点的MAC地址经过运算获得的值发送给所述站点、或者将所述运算所需的参数发送给所述站点。
本发明实施例中，所述方法还包括：
在发送所述无线帧之前，将所述接入点的BSS参数集发送给所述站点，所述BSS参数集至少包括所述接入点的BSS集合中的BSS的BSSID。
本发明实施例中，所述方法还包括：
接收到所述站点发送的对所述无线帧的响应帧时，向所述站点发送确认帧。
本发明实施例中，所述方法还包括：
当对接入点的不同BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为公共地址。
本发明实施例中，所述方法还包括：
当对接入点的同一BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为所述站点所属BSS的BSSID。
本发明实施例中，所述方法还包括：
当以下行多用户传输方式发送所述确认帧给所述站点时，将发送地址设置为所述站点所属BSS的BSSID。
图4为本发明实施例的数据传输方法的流程示意图二，本示例中的数据传输方法应用于站点，如图4所示，所述数据传输方法包括以下步骤：
步骤401：接收接入点发送的无线帧，所述无线帧用于触发所述站点进行上行多用户传输。
本发明实施例中，所述方法还包括：
在接收所述无线帧之前，获取所述接入点的BSS参数集。
本发明实施例中，所述方法还包括：
在接收所述无线帧之前，获取所述接入点的MAC地址经过运算获得的值、或者获取所述运算需要的参数。
本发明实施例中，所述接收接入点发送的无线帧之后，所述方法还包括：
判断所述无线帧的帧类型，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息。
当所述无线帧的帧类型是触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，从而进行上行多用户传输。
本发明实施例中，所述接收接入点发送的无线帧之后，所述方法还包括：
判断所述无线帧中的指示信息，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息；
当所述指示信息携带在所述无线帧的物理层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所 述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输；或者，
当所述指示信息携带在所述无线帧的MAC层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
本发明实施例中，所述方法还包括：
进行上行多用户传输时，将所传输的响应帧的接收地址设置为所述站点所属的BSS的BSSID。
步骤402：进行上行多用户传输。
本发明实施例中，接收到无线帧且当所述无线帧中的BSSID是BSS参数集中的BSSID时，不进行复用传输。
以下结合具体应用场景对本发明实施例做进一步说明，应当理解，此处所描述的实施例仅用于说明和解释本发明，并不用于限定本发明。在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
实施例一
参照图5，AP在自己发送的Beacon和探测响应(Probe Response)帧中通知自己支持多BSS能力，并且在Beacon和Probe Response帧中携带自己的BSS参数集。
该AP支持的BSS个数最多为2m个，m为大于等于零的整数。假设m的取值为2，则AP能够支持最多4个BSS，AP以自己的MAC地址为BSSID 建立一个BSS：BSS0，另外配置三个BSS：BSS1，BSS2和BSS3，分别为其配置BSSID和SSID，以及其他能力信息参数。AP要在Beacon和Probe Response帧中将配置的三个BSS对应的BSSID，SSID，能力信息等参数都广播出来，AP还需要通知站点m的取值。而Beacon和Probe Response帧本身的发送地址是AP的MAC地址，即BSS0的BSSID。
AP发送触发帧给多个站点，触发多个站点进行上行多用户传输。这多个站点分别属于BSS1，BSS2和BSS3，触发帧的发送地址设置为公共地址。这个公共地址可以是AP的MAC地址，即BSSID0，或者是BSSID1，BSSID2，BSSID3之一，也可以是BSSID0经过运算获得的值。例如，使用m对AP的MAC地址进行截取，取高n位，并且将低m位设置为0，n与m之和为48。
站点收到触发帧之后，判断该帧为触发帧，发送地址是自己本地存储的公共地址，例如是BSSID0～BSSID3中的某个值，或者是BSSID0的高44位+4个零，接收地址是广播地址，并且自己的标识信息包含在该帧内，则站点响应触发帧，进行上行多用户传输。站点进行上行传输时，接收地址设置为自己所属的BSS的BSSID。
站点可以复用其他BSS发送数据的时间段进行传输，但由于BSS0～BSS4中的所有站点实际上都关联在AP下，当站点接收到一个无线帧，且帧中的发送地址或接收地址是AP的BSS集合中的BSS的BSSID时，站点不能进行信道复用操作。
AP收到上行多用户数据，需要回复确认帧进行确认。在本实施例中，站点分别来自多个BSS，则AP回复一个多站点确认帧，该帧的接收地址 是广播地址，AP将确认帧的发送地址设置为公共地址。类似收到触发帧，站点对确认帧进行判断和接收，获取确认信息。
实施例二
AP发送触发帧给多个站点，触发多个站点进行上行多用户传输。这多个站点分别属于BSS1，BSS2和BSS3，触发帧的发送地址设置为公共地址。本实施例中，公共地址是将接入点的MAC地址的最高位的取值进行反转，即最高位原值为0，表示是接入点的MAC地址，取值反转后，最高位的取值变为1，表示该地址是一个公共地址。
站点收到触发帧之后，判断该帧为触发帧，发送地址最高位与BSSID0相反，而其他位均相同，则判断这是一个站点所属BSS的公共地址，当接收地址为广播地址时，并且自己的标识信息包含在该帧内，则站点响应触发帧，进行上行多用户传输。若自己的标识信息未包含在该帧内，但该触发帧为随机接入资源分配触发帧时，站点可以在随机接入资源上进行竞争接入，竞争成功则可以发送自己的上行数据。站点进行上行传输时，接收地址设置为自己所属的BSS的BSSID。
实施例三
AP发送触发帧给多个站点，触发多个站点进行上行多用户传输。这多个站点分别属于BSS1，BSS2和BSS3，触发帧的发送地址设置为公共地址。本实施例中，公共地址是AP的MAC地址，即BSSID0。
触发帧中携带一个指示信息，指示当前触发帧是否是多BSS触发帧。 该指示信息位于物理层信令域，采用1比特进行指示，或者位于MAC层信令域，例如使用一个新的帧类型指示当前触发帧是否是多BSS触发帧。
站点收到触发帧之后，判断该帧为多BSS触发帧，发送地址是自己本地存储的公共地址，接收地址是广播地址，并且自己的标识信息包含在该帧内，则站点响应触发帧，进行上行多用户传输。站点进行上行传输时，接收地址设置为自己所属的BSS的BSSID。
实施例四
参照图6，AP发送触发帧给多个站点(STA1、STA2、STA3、STA4)，触发多个站点进行上行多用户传输。这多个站点分别属于BSS1，BSS2、BSS0和BSS3，触发帧的发送地址设置为公共地址。本实施例中，公共地址是BSSID0经过运算获得的值。例如，使用m＝4对AP的MAC地址进行截取，取高44位，并且将低4位设置为0。
站点已经获取AP发送的Beacon或者Probe Response帧，获取了BSS参数集。站点收到触发帧之后，判断该帧为触发帧，发送地址是自己本地存储的公共地址，例如是BSSID0的高44位+4个零，接收地址是广播地址，并且自己的标识信息包含在该帧内，则站点响应触发帧，进行上行多用户传输。站点进行上行传输时，应用协议数据单元(PPDU，Application Protocol Data Unit)数据包的接收地址设置为自己所属的BSS的BSSID。
AP收到上行多用户数据，需要回复确认帧进行确认。在本实施例中，站点分别来自多个BSS，AP采用下行多用户方式发送确认帧，则对每个站点的确认帧占用一个子信道，同时进行发送，每个确认帧(BA)的接收地 址是各站点的地址，发送地址是站点关联的BSS的BSSID。
实施例五
参照图7，AP发送触发帧给多个站点(STA1、STA2、STA3、STA4)，触发多个站点进行上行多用户传输。这多个站点分别属于BSS1和BSS2，触发帧的发送地址设置为公共地址。本实施例中，是BSSID0经过运算获得的值。例如，使用m＝4对AP的MAC地址进行截取，取高44位，并且将低4位设置为0。
站点已经获取AP发送的Beacon或者Probe Response帧，获取了BSS参数集。站点收到触发帧之后，判断该帧为触发帧，发送地址是自己本地存储的公共地址，例如是BSSID0的高44位+4个零，接收地址是广播地址，并且自己的标识信息包含在该帧内，则站点响应触发帧，进行上行多用户传输。站点进行上行传输时，PPDU数据包的接收地址设置为自己所属的BSS的BSSID。
AP收到上行多用户数据，需要回复确认帧进行确认。在本实施例中，站点分别来自BSS1和BSS2，AP对于来自BSS1的站点发送一个多站点确认帧，对于来自BSS2的站点发送一个多站点确认帧，且这两个多站点确认帧采用下行多用户方式并行发送，每个确认帧占用一个子信道，则每个确认帧的接收地址是各站点的地址，发送地址站点关联的BSS的BSSID。
实施例六
参照图8，AP发送空数据包指示(NDPA，Null Data Packet  Announcement)帧，NDP帧和触发帧给多个站点(STA1、STA2、STA3、STA4)，NDPA帧用于触发多个站点进行信道测量，被测量的帧是紧接着NDPA帧发送的NPD帧。触发帧用于触发多个站点进行上行多用户反馈，可以是一个专用于触发的trigger帧，或者是Sounding Poll帧。若这多个站点均属于同一BSS，例如是BSS1，则NDPA帧和触发帧的发送地址设置为BSS1的BSSID1。若这多个站点分别属于BSS1，BSS2和BSS3，NDPA帧和触发帧的发送地址设置为公共地址。这个公共地址可以是AP的MAC地址，即BSSID0，也可以是BSSID0经过运算获得的值。例如，使用m＝4对AP的MAC地址进行截取，取高44位，并且将低4位设置为0。
站点已经获取AP发送的Beacon或者Probe Response帧，获取了BSS参数集。站点收到NDPA帧之后，判断该帧为NDPA帧，发送地址是自己本地存储的公共地址，例如是BSSID0，或者是BSSID0的高44位+4个零，接收地址是广播地址，并且自己的标识信息包含在该帧内，则站点进行信道测量。站点收到触发帧之后，判断为触发帧，且发送地址是自己所属的BSS的BSSID，接收地址是广播地址，并且自己的标识信息包含在该帧内，则站点响应触发帧，将信道测量报告使用上行多用户传输方式进行发送。站点进行上行传输时，携带有测量报告的数据帧的接收地址设置为自己所属的BSS的BSSID。
实施例七
参照图9，AP发送完下行数据之后，发送多用户确认请求帧(MU-BAR，Multi-user Block ACK Request)，请求站点对收到的下行数据进行确认，并 发送确认帧。
站点属于AP的BSS集合内的不同BSS，例如是BSS1，BSS2和BSS3，则AP将多用户确认请求帧的发送地址设置为公共地址，这个公共地址可以是AP的MAC地址，即BSSID0，也可以是BSSID0经过运算获得的值。例如，使用m＝4对AP的MAC地址进行截取，取高44位，并且将低4位设置为0。
站点收到多用户确认请求帧之后，判断帧类型，发送地址是自己本地存储的公共地址，例如是BSSID0，或者是BSSID0的高44位+4个零，接收地址是广播地址，并且自己的标识信息包含在该帧内，则站点响应于该帧，发送确认帧对接收到的下行数据进行确认。
图10为本发明实施例的接入点的结构组成示意图，本发明实施例提供的接入点具有多个不同基本服务集，如图10所示，所述接入点包括：
第一发送单元91，设置为发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。
本发明实施例中，所述无线帧中携带指示信息，所述指示信息用于指示当前无线帧是否是多基本服务集触发帧。
本发明实施例中，所述指示信息携带在所述无线帧的物理层信令域中、或者携带在所述无线帧的MAC层信令域中。
本发明实施例中，所述携带在MAC层信令域中的指示信息是帧类型。
本发明实施例中，所述接入点还包括：
第一设置单元92，设置为当所述指示信息指示所述无线帧是多基本服务集触发帧时，将所述无线帧的发送地址设置为公共地址。
所述公共地址是所述接入点的MAC地址、或者是所述接入点的基本服务集BSS集合内的任意BSS的BSSID、或者是所述接入点的MAC地址经过运算获得的值。
本发明实施例中，所述运算是截取所述接入点的MAC地址的高n位，并将低m位设置为0，其中m和n为大于等于零的整数，n与m之和为48。
本发明实施例中，所述运算是将所述接入点的MAC地址的最高i位的取值进行反转设置，其中i为大于等于1的整数。
本发明实施例中，所述接入点还包括：
第二发送单元93，设置为在发送所述无线帧之前，将所述接入点的MAC地址经过运算获得的值发送给所述站点、或者将所述运算所需的参数发送给所述站点。
本发明实施例中，所述接入点还包括：
第三发送单元94，设置为在发送所述无线帧之前，将所述接入点的BSS参数集发送给所述站点，所述BSS参数集至少包括所述接入点的BSS集合中的BSS的BSSID。
本发明实施例中，所述接入点还包括：
接收单元95，设置为接收所述站点发送的对所述无线帧的响应帧；
第四发送单元96，设置为当所述接收单元95接收到所述站点发送的对所述无线帧的响应帧时，向所述站点发送确认帧。
本发明实施例中，所述接入点还包括：
第二设置单元97，设置为当对接入点的不同BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为公共地址。
本发明实施例中，所述接入点还包括：
第三设置单元98，设置为当对接入点的同一BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为所述站点所属BSS的BSSID。
本发明实施例中，所述接入点还包括：
第四设置单元99，设置为当以下行多用户传输方式发送所述确认帧给所述站点时，将发送地址设置为所述站点所属BSS的BSSID。
本领域技术人员应当理解，图10所示的接入点中的各单元的实现功能可参照前述数据传输方法的相关描述而理解。图10所示的接入点中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
图11为本发明实施例的站点的结构组成示意图，如图11所示，所述站点包括：
接收单元11，设置为接收接入点发送的无线帧，所述无线帧用于触发所述站点进行上行多用户传输；
传输单元12，设置为进行上行多用户传输。
本发明实施例中，所述站点还包括：
第一获取单元13，设置为在接收所述无线帧之前，获取所述接入点的 BSS参数集。
本发明实施例中，所述站点还包括：
第二获取单元14，设置为在接收所述无线帧之前，获取所述接入点的MAC地址经过运算获得的值、或者获取所述运算需要的参数。
本发明实施例中，所述站点还包括：
第一判断单元15，设置为判断所述无线帧的帧类型，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息；
第一响应单元16，设置为当所述无线帧的帧类型是触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，从而进行上行多用户传输。
本发明实施例中，所述站点还包括：
第二判断单元17，设置为判断所述无线帧中的指示信息，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息。
本发明实施例中，所述站点还包括：
第二响应单元18，设置为当所述指示信息携带在所述无线帧的物理层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输；或者设置为，当所述指示信息携带在所述无线帧的MAC层信令域中且指示 所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
本发明实施例中，所述站点还包括：
设置单元19，设置为进行上行多用户传输时，将所传输的响应帧的接收地址设置为所述站点所属的BSS的BSSID。
本发明实施例中，接收到无线帧且当所述无线帧中的BSSID是BSS参数集中的BSSID时，不进行复用传输。
本领域技术人员应当理解，图11所示的站点中的各单元的实现功能可参照前述数据传输方法的相关描述而理解。图11所示的站点中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备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，如：多个单元或组件可以结合，或可以集成到另一个***，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的， 作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，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全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，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，也可以采用硬件加软件功能单元的形式实现。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种数据传输方法、接入点、站点具有以下有益效果：接入点发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。从而使得接入点能够触发自己的多BSS下的各个站点进行上行多用户传输，提高了空口使用效率，减少了带宽浪费。

Claims (44)

  1. 一种数据传输方法，应用于接入点，所述方法包括：
    发送无线帧给多个站点，触发所述站点进行上行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。
  2. 根据权利要求1所述的数据传输方法，其中，所述无线帧中携带指示信息，所述指示信息用于指示当前无线帧是否是多基本服务集触发帧。
  3. 根据权利要求2所述的数据传输方法，其中，所述指示信息携带在所述无线帧的物理层信令域中、或者携带在所述无线帧的介质访问控制层MAC层信令域中。
  4. 根据权利要求3所述的数据传输方法，其中，所述携带在MAC层信令域中的指示信息是帧类型。
  5. 根据权利要求2所述的数据传输方法，其中，所述方法还包括：
    当所述指示信息指示所述无线帧是多基本服务集触发帧时，将所述无线帧的发送地址设置为公共地址。
  6. 根据权利要求1所述的数据传输方法，其中，所述公共地址是所述接入点的MAC地址、或者是所述接入点的基本服务集集合内的任意BSS的BSSID、或者是所述接入点的MAC地址经过运算获得的值。
  7. 根据权利要求6所述的数据传输方法，其中，所述运算是截取所述接入点的MAC地址的高n位，并将低m位设置为0，其中m和n为大 于等于零的整数，n与m之和为48。
  8. 根据权利要求6所述的数据传输方法，其中，所述运算是将所述接入点的MAC地址的最高i位的取值进行反转设置，其中i为大于等于1的整数。
  9. 根据权利要求7所述的数据传输方法，其中，所述方法还包括：
    在发送所述无线帧之前，将所述接入点的MAC地址经过运算获得的值发送给所述站点、或者将所述运算所需的参数发送给所述站点。
  10. 根据权利要求1所述的数据传输方法，其中，所述方法还包括：
    在发送所述无线帧之前，将所述接入点的BSS参数集发送给所述站点，所述BSS参数集至少包括所述接入点的BSS集合中的BSS的BSSID。
  11. 根据权利要求1所述的数据传输方法，其中，所述方法还包括：接收到所述站点发送的对所述无线帧的响应帧时，向所述站点发送确认帧。
  12. 根据权利要求11所述的数据传输方法，其中，所述方法还包括：
    当对接入点的不同BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为公共地址。
  13. 根据权利要求11所述的数据传输方法，其中，所述方法还包括：
    当对接入点的同一BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为所述站点所属BSS的BSSID。
  14. 根据权利要求1至13任一项所述的数据传输方法，其中，所述 方法还包括：
    当以下行多用户传输方式发送所述确认帧给所述站点时，将发送地址设置为所述站点所属BSS的BSSID。
  15. 一种数据传输方法，应用于站点，所述方法包括：
    接收接入点发送的无线帧，所述无线帧用于触发所述站点进行上行多用户传输；
    进行上行多用户传输。
  16. 根据权利要求15所述的数据传输方法，其中，所述方法还包括：
    在接收所述无线帧之前，获取所述接入点的BSS参数集。
  17. 根据权利要求15所述的数据传输方法，其中，所述方法还包括：
    在接收所述无线帧之前，获取所述接入点的MAC地址经过运算获得的值、或者获取所述运算需要的参数。
  18. 根据权利要求15所述的数据传输方法，其中，所述接收接入点发送的无线帧之后，所述方法还包括：
    判断所述无线帧的帧类型，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息。
  19. 根据权利要求18所述的数据传输方法，其中，所述方法还包括：
    当所述无线帧的帧类型是触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
  20. 根据权利要求15所述的数据传输方法，其中，所述接收接入点 发送的无线帧之后，所述方法还包括：
    判断所述无线帧中的指示信息，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息；
    当所述指示信息携带在所述无线帧的物理层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输；或者，
    当所述指示信息携带在所述无线帧的MAC层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
  21. 根据权利要求15所述的数据传输方法，其中，所述方法还包括：
    进行上行多用户传输时，将所传输的响应帧的接收地址设置为所述站点所属的BSS的BSSID。
  22. 根据权利要求15至21任一项所述的数据传输方法，其中，所述方法还包括：
    接收到无线帧且当所述无线帧中的BSSID是BSS参数集中的BSSID时，不进行复用传输。
  23. 一种接入点，所述接入点具有多个不同基本服务集，所述接入点包括：
    第一发送单元，设置为发送无线帧给多个站点，触发所述站点进行上 行多用户传输，当所述站点属于所述接入点的不同基本服务集时，将所述无线帧的发送地址设置为公共地址。
  24. 根据权利要求23所述的接入点，其中，所述无线帧中携带指示信息，所述指示信息用于指示当前无线帧是否是多基本服务集触发帧。
  25. 根据权利要求24所述的接入点，其中，所述指示信息携带在所述无线帧的物理层信令域中、或者携带在所述无线帧的介质访问控制层MAC层信令域中。
  26. 根据权利要求25所述的接入点，其中，所述携带在MAC层信令域中的指示信息是帧类型。
  27. 根据权利要求24所述的接入点，其中，所述接入点还包括：
    第一设置单元，设置为当所述指示信息指示所述无线帧是多基本服务集触发帧时，将所述无线帧的发送地址设置为公共地址。
  28. 根据权利要求23所述的接入点，其中，所述公共地址是所述接入点的MAC地址、或者是所述接入点的基本服务集集合内的任意BSS的BSSID、或者是所述接入点的MAC地址经过运算获得的值。
  29. 根据权利要求28所述的接入点，其中，所述运算是截取所述接入点的MAC地址的高n位，并将低m位设置为0，其中m和n为大于等于零的整数，n与m之和为48。
  30. 根据权利要求28所述的接入点，其中，所述运算是将所述接入点的MAC地址的最高i位的取值进行反转设置，其中i为大于等于1的整数。
  31. 根据权利要求28所述的接入点，其中，所述接入点还包括：
    第二发送单元，设置为在发送所述无线帧之前，将所述接入点的MAC地址经过运算获得的值发送给所述站点、或者将所述运算所需的参数发送给所述站点。
  32. 根据权利要求23所述的接入点，其中，所述接入点还包括：
    第三发送单元，设置为在发送所述无线帧之前，将所述接入点的BSS参数集发送给所述站点，所述BSS参数集至少包括所述接入点的BSS集合中的BSS的BSSID。
  33. 根据权利要求23所述的接入点，其中，所述接入点还包括：
    接收单元，设置为接收所述站点发送的对所述无线帧的响应帧；
    第四发送单元，设置为当所述接收单元接收到所述站点发送的对所述无线帧的响应帧时，向所述站点发送确认帧。
  34. 根据权利要求33所述的接入点，其中，所述接入点还包括：
    第二设置单元，设置为当对接入点的不同BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为公共地址。
  35. 根据权利要求33所述的接入点，其中，所述接入点还包括：
    第三设置单元，设置为当对接入点的同一BSS下的站点发送所述确认帧，且所述确认帧是接收地址为广播地址的多站点确认帧时，将所述确认帧的发送地址设置为所述站点所属BSS的BSSID。
  36. 根据权利要求23至35任一项所述的接入点，其中，所述接入点还包括：
    第四设置单元，设置为当以下行多用户传输方式发送所述确认帧给所 述站点时，将发送地址设置为所述站点所属BSS的BSSID。
  37. 一种站点，所述站点包括：
    接收单元，设置为接收接入点发送的无线帧，所述无线帧用于触发所述站点进行上行多用户传输；
    传输单元，设置为进行上行多用户传输。
  38. 根据权利要求37所述的站点，其中，所述站点还包括：
    第一获取单元，设置为在接收所述无线帧之前，获取所述接入点的BSS参数集。
  39. 根据权利要求37所述的站点，其中，所述站点还包括：
    第二获取单元，设置为在接收所述无线帧之前，获取所述接入点的MAC地址经过运算获得的值、或者获取所述运算需要的参数。
  40. 根据权利要求37所述的站点，其中，所述站点还包括：
    第一判断单元，设置为判断所述无线帧的帧类型，以及判断所述无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息。
  41. 根据权利要求39所述的站点，其中，所述站点还包括：
    第一响应单元，设置为当所述无线帧的帧类型是触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
  42. 根据权利要求37所述的站点，其中，所述站点还包括：
    第二判断单元，设置为判断所述无线帧中的指示信息，以及判断所述 无线帧的接收地址，以及判断所述无线帧的发送地址，以及判断所述无线帧中是否包括所述站点的标识信息；
    第二响应单元，设置为当所述指示信息携带在所述无线帧的物理层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输；或者设置为，当所述指示信息携带在所述无线帧的MAC层信令域中且指示所述无线帧是多基本服务集触发帧，且所述无线帧的发送地址是公共地址，且所述无线帧的接收地址是广播地址，且所述无线帧中包括所述站点的标识信息时，响应所述无线帧，进行上行多用户传输。
  43. 根据权利要求37所述的站点，其中，所述站点还包括：
    设置单元，设置为进行上行多用户传输时，将所传输的响应帧的接收地址设置为所述站点所属的BSS的BSSID。
  44. 根据权利要求37至43任一项所述的站点，其中，接收到无线帧且当所述无线帧中的BSSID是BSS参数集中的BSSID时，不进行复用传输。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2538599A1 (en) * 2010-02-18 2012-12-26 LG Electronics Inc. Method and apparatus for ack transmission in a wlan
CN103533653A (zh) * 2012-07-06 2014-01-22 杭州华三通信技术有限公司 一种解决局域网中隐藏节点的方法及装置
CN104253673A (zh) * 2013-06-25 2014-12-31 华为技术有限公司 上行多用户数据传输方法及上行多用户输入输出***

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9380578B2 (en) * 2011-05-06 2016-06-28 Thomson Licensing Method of establishing a first and a second association which are decoupled
US10516614B2 (en) * 2013-08-28 2019-12-24 Qualcomm Incorporated Methods and apparatus for multiple user uplink

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2538599A1 (en) * 2010-02-18 2012-12-26 LG Electronics Inc. Method and apparatus for ack transmission in a wlan
CN103533653A (zh) * 2012-07-06 2014-01-22 杭州华三通信技术有限公司 一种解决局域网中隐藏节点的方法及装置
CN104253673A (zh) * 2013-06-25 2014-12-31 华为技术有限公司 上行多用户数据传输方法及上行多用户输入输出***

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