WO2022017173A1 - 建立直连链路、无线局域网帧发送的方法、装置及系统 - Google Patents

建立直连链路、无线局域网帧发送的方法、装置及系统 Download PDF

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Publication number
WO2022017173A1
WO2022017173A1 PCT/CN2021/104762 CN2021104762W WO2022017173A1 WO 2022017173 A1 WO2022017173 A1 WO 2022017173A1 CN 2021104762 W CN2021104762 W CN 2021104762W WO 2022017173 A1 WO2022017173 A1 WO 2022017173A1
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Prior art keywords
link
direct
direct link
site
request message
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PCT/CN2021/104762
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English (en)
French (fr)
Inventor
桑燃
潘淳
季晨荷
王云贵
江兴烽
Original Assignee
华为技术有限公司
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Priority to EP21846175.4A priority Critical patent/EP4178307A4/en
Publication of WO2022017173A1 publication Critical patent/WO2022017173A1/zh
Priority to US18/154,220 priority patent/US20230180323A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present application relates to the field of communications, and in particular, to a method, device and system for establishing a direct link and sending wireless local area network frames.
  • Wireless local area network (WLAN) system refers to the application of wireless communication technology to connect different stations (station, STA) to form a network system that can communicate with each other.
  • each STA includes a media access control (media access control, MAC) entity and a physical layer (physical, PHY) entity.
  • a STA may be an access point (AP) or a non-AP (non-AP) STA.
  • AP access point
  • non-AP non-AP
  • the two non-APSTAs are referred to as the first STA and the second STA, respectively, through a MAC entity and a PHY entity included in the first STA, and a MAC entity and a PHY included in the second STA.
  • a direct link can be established between the first STA and the second STA.
  • the first STA and the second STA may perform data transmission through the direct link.
  • the present application provides a method, device and system for establishing a direct link and transmitting wireless local area network frames, so as to improve the reliability and throughput of data transmission.
  • the technical solution is as follows:
  • the present application provides a method for establishing a direct link in a wireless local area network.
  • Device information of two multi-link devices establish at least one direct link between the first multi-link device and the second multi-link device, and each direct link in the at least one direct link is connected to One of the multiple sites of the first multilink device and one site belonging to the second multilink device.
  • at least one direct link is established between two multi-link devices, and each of the at least one direct link can be used to transmit data between the two multi-link devices, thereby improving the data transmission rate. Transmission reliability and throughput.
  • the parameters of the multiple sites belonging to the first multi-link device include the identification and capability information of each site in the multiple sites, so that based on the identification and capability information of the multiple sites, the The site of the first multi-link device is paired with the site of the second multi-link device, and a direct link is established between the paired two sites.
  • the capabilities of the sites at both ends of each directly connected link in the at least one directly connected link correspond to each other, so that it can be ensured that the sites at both ends can successfully establish a directly connected link.
  • the first multilink device sends a direct link discovery request message, where the direct link discovery request message includes parameters of multiple sites belonging to the first multilink device and a second multilink discovery request message. The address of the link device.
  • the first multilink device receives the direct link discovery response message sent by the second multilink device. Since the direct-connected link discovery request message includes parameters of multiple sites, it is supported to establish at least one direct-connected link between the first multi-link device and the second multi-link device.
  • the first multilink device sends a direct link configuration request message, and the direct link configuration request message includes parameters of multiple sites belonging to the first multilink device and the second multilink configuration request message. address of the road device.
  • the first multi-link device receives a direct-connected link configuration response message, and the direct-connected link configuration response message includes an indication of agreeing to establish a direct-connected link and an indication of the two ends of each direct-connected link in the at least one direct-connected link. Correspondence.
  • the direct-connected link configuration request message includes parameters of multiple sites belonging to the first multi-link device
  • the direct-connected link configuration response message includes both ends of each direct-connected link in the at least one direct-connected link The corresponding relationship of the sites, thereby supporting the establishment of at least one direct link between the first multi-link device and the second multi-link device.
  • the direct link configuration response message further includes parameters of the site of the second multi-link device.
  • the first multilink device sends a direct link configuration request message, and the direct link configuration request message includes parameters of multiple sites belonging to the first multilink device and the second multilink configuration request message. address of the road device.
  • the first multilink device receives a direct link configuration response message, where the direct link configuration response message includes an indication of agreeing to establish a direct link and parameters of a site of the second multilink device.
  • the first multi-link device sends a direct-connected link confirmation message, where the direct-connected link confirmation message includes a correspondence between sites at both ends of each direct-connected link in the at least one direct-connected link.
  • the direct-connected link configuration request message includes parameters of multiple sites belonging to the first multi-link device
  • the direct-connected link configuration response message includes both ends of each direct-connected link in the at least one direct-connected link The corresponding relationship of the sites, thereby supporting the establishment of at least one direct link between the first multi-link device and the second multi-link device.
  • the first multi-link device sends a direct link confirmation message
  • the direct link confirmation message includes the corresponding relationship between the two ends of each direct link in the at least one direct link, so that the first multi-link confirmation message can be ensured.
  • the establishment of at least one direct link between the link device and the second multi-link device can be successfully established.
  • the first multi-link device sends a direct link discovery request message, and the direct link discovery request message includes parameters of multiple sites belonging to the first multi-link device and the second multi-link address of the road device.
  • the first multilink device receives a direct link discovery response message sent by the second multilink device, where the direct link discovery response message includes parameters of the site of the second multilink device. Since the direct link discovery request message includes parameters of a plurality of sites belonging to the first multi-link device, and the direct link discovery response message includes parameters of the sites of the second multi-link device, the first multi-link device is supported. At least one direct link is established between the multi-link device and the second multi-link device.
  • the first multi-link device sends a direct-connection link configuration request message, and the direct-connection link configuration request message includes at least one direct-connection link. Correspondence and the address of the second multilink device.
  • the first multi-link device receives a direct link configuration response message, where the direct link configuration response message includes an indication of agreeing to establish a direct link. Since the direct-connected link configuration request message includes the corresponding relationship between the two ends of each direct-connected link in the at least one direct-connected link, the establishment between the first multi-link device and the second multi-link device is supported. At least one direct link.
  • the first multi-link device determines, according to parameters of multiple sites of the first multi-link device and parameters of the sites of the second multi-link device, each of the at least one direct link The corresponding relationship between the sites at both ends of a directly connected link.
  • the first multi-link device sends a direct link release request message
  • the direct link release request message includes a link identifier set
  • the link identifier set includes at least one of the directly connected links.
  • the identifier of all or part of the directly connected links, and the direct connected link release request message instructs the second multi-link device to release the direct connected link corresponding to the identifier of each directly connected link in the set of link identifiers.
  • a direct link release request message can be used to release the direct links in batches, which reduces the number of messages sent and reduces the occupation of network resources.
  • the first multi-link device sends a direct link traffic indication message, where the direct link traffic indication information includes an identifier of each direct link in the first direct link set and the The service flow status transmitted by each direct link in the first direct link set at the corresponding site in the first multi-link device, where the first direct link set includes at least one direct link or at least one direct link Part of the direct link in the link.
  • a direct-connected link traffic indication message can be used to notify in batches the service flow status transmitted by the direct-connected link corresponding to the site in the first multi-link device, thereby reducing the number of sent messages and reducing the occupation of network resources.
  • the first multi-link device sends a direct link sleep request message
  • the direct link sleep request message includes an identifier of each direct link in the second set of direct links and Sleep information of the site corresponding to each direct link in the second set of direct links in the first multi-link device, where the second set of direct links includes at least one direct link or at least one direct link Part of the direct link in the road.
  • a direct link sleep request message can be used to notify in batches the sleep information of the stations corresponding to the direct link in the first multi-link device, thereby reducing the number of messages to be sent and reducing the occupation of network resources.
  • the first multi-link device sends a direct link channel switching request message
  • the direct link channel switching request message includes the Identifies the identifier of the target channel corresponding to each direct link in the third direct link set
  • the direct link channel switching request message instructs the second multilink device to switch each direct link in the third direct link set.
  • the channels occupied by the directly connected links are respectively switched to the target channels corresponding to each of the directly connected links in the third set of directly connected links
  • the third set of directly connected links includes at least one directly connected link or at least one directly connected link. Part of the direct link in the link. In this way, one direct link channel switching request message can be used to switch the channels of the direct link in batches, which reduces the number of messages to be sent and reduces the occupation of network resources.
  • the present application provides a method for establishing a direct link in a wireless local area network, in the method: a first multilink device receives a direct link configuration request message from a second multilink device , the direct link configuration request message includes parameters of multiple sites belonging to the second multi-link device, and the first multi-link device includes one site.
  • the first multilink device selects a site from the multiple sites according to the parameters of the multiple sites and the parameters of the one site.
  • the first multi-link device sends a direct-connect link configuration response message to the second multi-link device, where the direct-connect link configuration response message includes a corresponding relationship between sites at both ends of a direct-connect link to be established, and the corresponding relationship is: The corresponding relationship between the one site and the selected site. Since the first multi-link device selects one station from the plurality of stations according to the parameters of the plurality of stations and the parameters of the one station, the first multi-link device including one station can also be connected with the first multi-link device including a plurality of stations. A direct link is established between the second multi-link devices.
  • the first multi-link device selects, from the multiple sites, a site whose capability corresponds to the capability of one site according to the parameters of the multiple sites and the parameters of the one site, so that the Ensure that the sites at the two ends can successfully establish a direct link.
  • the present application provides a method for sending a WLAN frame in a wireless local area network.
  • a first multi-link device uses a first access point AP to receive a first WLAN frame sent by a second multi-link device.
  • the first AP belongs to the first multi-link device
  • the address of the sender of the first WLAN frame is the address of the second multi-link device
  • the destination address of the first WLAN frame is the address of the site
  • the address of the receiver of the first WLAN frame is the address of the first AP
  • the site belongs to the third multi-link device
  • the site is not associated with the first AP
  • the first multi-link device is the access point multi-link device
  • the second multi-link device and the third multi-link device are
  • the three multilink devices are non-access point multilink devices.
  • the first multi-link device uses the second WLAN frame sent by the second AP, the second AP belongs to the third multi-link device, the payload of the second WLAN frame is the same as that of the first WLAN frame, and the site is associated with the second WLAN frame.
  • the sender address of the second WLAN frame is the address of the second AP
  • the receiver address of the second WLAN frame is the address of the site
  • the source address of the second WLAN frame is the address of the second multilink device.
  • the first multi-link device can determine the second AP associated with the station, and use the second AP to send the second AP to the station.
  • Second WLAN since the payload of the second WLAN frame is the same as the payload of the first WLAN frame, the content of the payload part of the first WLAN frame can be sent to the second multi-link device.
  • the first WLAN frame is a direct link configuration request message, a direct link configuration request message for establishing at least one direct link between the second multilink device and the third multilink device A link configuration response message, a direct link confirmation message, a direct link discovery request message, or a direct link discovery response message.
  • the present application provides an apparatus for establishing a direct link in a wireless local area network, for executing the method in the first aspect or any possible implementation manner of the first aspect.
  • the apparatus includes means for performing the method of the first aspect or any one of possible implementations of the first aspect.
  • the present application provides an apparatus for establishing a direct link in a wireless local area network, for executing the method in the second aspect or any possible implementation manner of the second aspect.
  • the apparatus includes means for performing the method of the second aspect or any one of possible implementations of the second aspect.
  • the present application provides an apparatus for sending a wireless local area network WLAN frame, which is used to execute the third aspect or the method in any possible implementation manner of the third aspect.
  • the apparatus includes means for performing the method of the third aspect or any one of possible implementations of the third aspect.
  • the present application provides an apparatus for establishing a direct link in a wireless local area network, the apparatus comprising: a processor, a memory and a transceiver.
  • the processor, the memory and the transceiver may be connected through a bus system.
  • the memory is used to store one or more programs, and the processor is used to execute the one or more programs in the memory to cause the apparatus to perform the method of the first aspect or any possible implementation of the first aspect.
  • the present application provides an apparatus for establishing a direct link in a wireless local area network, the apparatus comprising: a processor, a memory and a transceiver.
  • the processor, the memory and the transceiver may be connected through a bus system.
  • the memory is used to store one or more programs, and the processor is used to execute the one or more programs in the memory to cause the apparatus to perform the method of the second aspect or any possible implementation of the second aspect.
  • the present application provides an apparatus for sending a wireless local area network WLAN frame, the apparatus comprising: a processor, a memory, and a transceiver.
  • the processor, the memory and the transceiver may be connected through a bus system.
  • the memory is used to store one or more programs, and the processor is used to execute the one or more programs in the memory, so that the apparatus performs the method of the third aspect or any possible implementation of the third aspect.
  • the present application provides a computer-readable storage medium, where program codes are stored in the computer-readable storage medium, and when the computer-readable storage medium runs on a multi-link device, the multi-link device enables the multi-link device to perform the above-mentioned first aspect, A method in the second aspect, the third aspect, any possible implementation of the first aspect, any possible implementation of the second aspect, or any possible implementation of the third aspect.
  • the present application provides a computer program product comprising program codes, which, when running on a multi-link device, enables the multi-link device to perform the above-mentioned first, second, third, and third aspects.
  • the present application provides a system for establishing a direct link in a wireless local area network, the system comprising: the device described in the fourth aspect, the device described in the fifth aspect, and the device described in the sixth aspect an apparatus; or, the system includes: the apparatus of the seventh aspect, the apparatus of the eighth aspect, and the apparatus of the ninth aspect.
  • FIG. 1 is a schematic structural diagram of a WLAN provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a multi-link device provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of another multi-link device provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another multi-link device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another multi-link device provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of a method for establishing a direct link in a wireless local area network provided by an embodiment of the present application
  • FIG. 7 is a schematic diagram of a first structure of a direct link configuration request message provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a second structure of a direct link configuration request message provided by an embodiment of the present application.
  • FIG. 9 is a first structural schematic diagram of a direct link discovery request message provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a second structure of a direct link discovery request message provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a direct link discovery response message provided by an embodiment of the present application.
  • FIG. 12 is a first structural schematic diagram of a direct link configuration response message provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a second structure of a direct link configuration response message provided by an embodiment of the present application.
  • FIG. 14 is a first structural schematic diagram of a direct link confirmation message provided by an embodiment of the present application.
  • 15 is a schematic diagram of a second structure of a direct link confirmation message provided by an embodiment of the present application.
  • 16 is a schematic structural diagram of a direct link release request message provided by an embodiment of the present application.
  • 17 is a schematic structural diagram of a direct link traffic indication message provided by an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a direct link channel switching request message provided by an embodiment of the present application.
  • 20 is a schematic structural diagram of an apparatus for establishing a direct link in a wireless local area network provided by an embodiment of the present application;
  • 21 is a schematic structural diagram of another apparatus for establishing a direct link in a wireless local area network provided by an embodiment of the present application.
  • 22 is a schematic structural diagram of another apparatus for establishing a direct link in a wireless local area network provided by an embodiment of the present application.
  • FIG. 23 is a schematic structural diagram of another apparatus for establishing a direct link in a wireless local area network provided by an embodiment of the present application.
  • 24 is a schematic structural diagram of another apparatus for establishing a direct link in a wireless local area network provided by an embodiment of the present application.
  • FIG. 25 is a schematic structural diagram of another apparatus for establishing a direct link in a wireless local area network provided by an embodiment of the present application.
  • the embodiments of the present application are applied to a WLAN.
  • the WLAN includes multiple multi-link devices.
  • the multiple multi-link devices are divided into two types.
  • the first type of multi-link devices is access point multi-link devices.
  • the first type of multi-link devices is an access point multi-link device.
  • the multi-link device includes multiple APs.
  • the second type of multi-link device is a non-access point multi-link device, and the second type of multi-link device includes multiple stations. Any AP in the first type of multilink device may be associated with a site in the second type of multilink device.
  • each link connects an AP on the multi-link device of the first type and the second type of multi-link device.
  • a site on a multilink device is an association.
  • the WLAN includes a multi-link device 1 , a multi-link device 2 and a multi-link device 3 .
  • the multi-link device 1 is an access point multi-link device, that is, the multi-link device 1 is a first-type multi-link device.
  • the multi-link device 2 and the multi-link device 3 are non-access point multi-link devices, that is, the multi-link device 2 and the multi-link device 3 are the second type of multi-link devices.
  • Multilink device 1 includes AP11 , AP12 and AP13
  • multilink device 2 includes site 21 , site 22 and site 23
  • multilink device 3 includes site 31 and site 32 .
  • Link 41 connects AP11 on multilink device 1 and station 21 on multilink device 2
  • link 42 connects AP12 on multilink device 1 and station 22 on multilink device 2
  • link 43 connects AP13 on multilink device 1 and station 23 on multilink device 2. That is to say, AP11 is associated with station 21, AP12 is associated with station 22, and AP13 is associated with station 23.
  • Link 44 connects AP 11 on multi-link device 1 and station 31 on multi-link device 3
  • link 45 connects AP 12 on multi-link device 1 and station 32 on multi-link device 3. That is to say, AP11 is associated with site 31 , and AP12 is associated with site 32 .
  • each AP on the multi-link device of the first type supports a different frequency band
  • each station on the multi-link device of the second type supports a different frequency band
  • the frequency band supported by the AP is the same as the frequency band supported by the station.
  • a link between the AP and the station may be established on a frequency band supported by the AP and the station.
  • the frequency band is a 2.4GHz frequency band, a 3.6GHz frequency band, a 4.9GHz frequency band, a 5GHz frequency band, a 60GHz frequency band, or a 6GHz frequency band.
  • AP11, AP12, and AP13 in the multi-link device 1 correspond to the 2.4GHz frequency band, the 3.6GHz frequency band, and the 4.9GHz frequency band, respectively.
  • Site 21, site 22, and site 23 in the multi-link device 2 correspond to the 2.4GHz frequency band, the 3.6GHz frequency band, and the 4.9GHz frequency band, respectively.
  • the station 31 and the station 32 in the multi-link device 3 correspond to the 2.4GHz frequency band and the 3.6GHz frequency band, respectively.
  • the link 41 between the AP 11 and the station 21 is a link established on the 2.4GHz frequency band.
  • Link 42 between AP 112 and site 22 is a link established on the 3.6 GHz frequency band.
  • Link 43 between AP 13 and site 23 is a link established on the 4.9GHz frequency band.
  • the link 44 between the AP 11 and the station 31 is a link established on the 2.4GHz frequency band.
  • the link 45 between AP 12 and site 32 is a link established on the 3.6GHz frequency band.
  • the PHY entities of each AP in the multi-link device of the first type are independent of each other, and the low MAC entities of each AP are also independent of each other.
  • the high MAC entities of each AP are also independent of each other; or, referring to FIG. 3 , each AP shares the high MAC entities.
  • the PHY entities of each site in the multi-link device of the second type are independent of each other, and the low MAC entities of each site are also independent of each other.
  • the high MAC entities of each site are also independent of each other; or, referring to FIG. 4 , each site shares the high MAC entity.
  • the multi-link device 3 may also include one site, but the multi-link device 3 supports a tunneled direct-link setup (TDLS).
  • TDLS tunneled direct-link setup
  • an embodiment of the present application provides a method for establishing a direct link in a WLAN, and the method can be applied to the WLAN shown in FIG. 1 for establishing between two second-type multi-link devices At least one direct link, that is, at least one direct link is established between the multi-link device 2 and the multi-link device 3 in the WLAN shown in FIG. 1 .
  • the method includes:
  • Step 101 The multi-link device 2 sends a direct-connected link configuration request message (TDLS Setup Request), and the direct-connected link configuration request message includes the parameters of the multiple sites belonging to the multi-link device 2 and the multi-link device 3 the address of.
  • TDLS Setup Request a direct-connected link configuration request message
  • the parameters of the multiple sites in the multilink device 2 include identification and capability information of each site in the multiple sites. That is, for any one of the multiple sites, the parameters of the site include the identification and capability information of the site.
  • the identifier of the site is the MAC address of the site or the identifier assigned to the site by the WLAN system, or the like.
  • the capability information of the site includes frequency bands supported by the site, and the like.
  • the parameters of the site further include at least one of an identifier of an AP associated with the site, channel information of the site, and the like.
  • the channel information of the site includes the primary channel number and bandwidth size of the site, and the like.
  • the multi-link device 2 sends the direct link configuration request message to the multi-link device 1 through the first site, where the first site is a site in the multi-link device 1 .
  • the sender address of the direct link configuration request message is the address of the first site
  • the destination address is the address of the multi-link device 3
  • the receiver address is the address of the first AP.
  • the first AP is an AP in the multi-link device 1
  • the first AP is associated with the first site, that is, a link exists between the first AP and the first site.
  • the direct link configuration request message is a WLAN frame
  • the sender address, destination address and receiver address are located in the frame header of the direct link configuration request message.
  • the address of the multi-link device 3 may be the device address of the multi-link device 3 or the address of the second site, and the second site is a site in the multi-link device 3 .
  • the device address of the multi-link device 3 is a MAC address or an internet protocol (internet protocol, IP) address or the like of the multi-link device 3 .
  • the address of the first site may be a MAC address or an IP address of the first site, or the like.
  • the address of the second site may be a MAC address or an IP address of the second site.
  • the address of the first AP may be a MAC address or an IP address of the first AP, or the like.
  • parameters belonging to multiple sites of the multi-link device 2 may be located in the payload of the direct link configuration request message.
  • the multi-link device 2 may acquire the address of the multi-link device 3 from the upper-layer application.
  • the multi-link device 2 can obtain the address of the multi-link device 3 input into the input interface through the input interface.
  • the multi-link device 2 can obtain the address of the multi-link device 3 by scanning a graphic code including the address of the multi-link device 3 through a code scanning application.
  • the directly-connected link configuration request message includes the corresponding relationship between the two ends of each direct-connected link in the at least one directly-connected link to be established.
  • the at least one direct link to be established is a direct link to be established between the multi-link device 2 and the multi-link device 3 .
  • the site at one end of the direct link is a site in the multi-link device 2
  • the site at the other end of the direct link is a multi-link A station in road equipment 3.
  • the correspondence between the sites at both ends of the direct link includes the parameters of the site at one end of the direct link and the identifier of the site at the other end of the direct link.
  • the capabilities of both ends of each direct link in the at least one direct link correspond to the capabilities.
  • the so-called capability correspondence of the sites at both ends means that the capabilities of the sites at both ends overlap.
  • the frequency band supported by the site at one end of the direct link is the same as that supported by the site at the other end of the direct link.
  • the supported frequency bands are the same or the supported frequency bands overlap.
  • the direct link to be established includes the direct link 1 between the site 21 in the multilink device 2 and the site 31 in the multilink device 3 and the link in the multilink device 2 Direct link 2 between site 22 and site 32 in multilink device 3.
  • the direct link configuration request message includes the correspondence between the sites at both ends of the direct link 1 and the correspondence between the sites at both ends of the direct link 2 .
  • the correspondence between the sites at both ends of the direct link 1 includes the parameters of the site 21 and the identifier of the site 31
  • the correspondence between the sites at the two ends of the direct link 2 includes the parameters of the site 22 and the identifier of the site 32 .
  • the multi-link device 2 also obtains the multi-link device 3.
  • the parameters of at least one site in the multi-link device 2 and the parameters of at least one site in the multi-link device 3 are used to determine each of the at least one directly-connected link. The correspondence between the stations at both ends of the road.
  • the multi-link device 2 can obtain the parameters of at least one site in the multi-link device 3 through the device discovery process.
  • the detailed implementation of the device discovery process will be described in detail in the subsequent content, and will not be described in detail here. .
  • the following two structures of the direct link configuration request message are provided.
  • the two structures are:
  • the payload of the direct link configuration request message includes a Category field and a TDLS Action field.
  • Dialog Token field Capability field, traffic identifier (TID Mapping) field, extremely high throughput capability (extremely high throughput capability, EHT Capability) field and multiple link elements (multiple) link element, MLE) field, etc.
  • TID Mapping traffic identifier
  • EHT Capability extremely high throughput capability
  • MLE multiple link elements
  • the TID Mapping field and the EHT Capability field are newly added fields.
  • the TID Mapping field and the EHT Capability field include parameters of the first site.
  • the TID Mapping field includes the identifier of the first site
  • the EHT Capability field includes capability information of the first site.
  • the directly connected link configuration request message includes the correspondence between sites at both ends of each of the directly connected links in the at least one directly connected link
  • the first site is a site at one end of a directly connected link
  • the TID The Mapping field also includes the identifier of the other end site of the one direct link.
  • the other end site of the one directly connected link is the site in the multi-link device 3 .
  • the MLE field of the direct link configuration request message includes parameters of each other site in the plurality of sites except the first site.
  • the direct link configuration request message of the first structure shown in FIG. 7 is obtained by adding the MLE field to the current direct link configuration request message.
  • the MLE field of the direct link configuration request message includes an element identification (Element ID) field, a length (Length) field, a common information (Common Info) field, and a link (Link) field corresponding to each other station .
  • the Element ID field includes the identification of the MLE field
  • the Length field includes the length of the MLE field
  • the Common Info field includes the common information in the parameters of each other site.
  • the Link field corresponding to the other site includes other information in the parameters of the other site except the common information.
  • the other site is one end of a direct link.
  • the Link field corresponding to the other site also includes the identifier of the site located at the other end of the one direct link.
  • the Link field corresponding to the other station includes a link identification (Link ID) field, a Capability field, a TID Mapping field and an EHT Capability field.
  • the Link ID field includes the identification of the other site, the Capability field, the TID Mapping field and the EHT Capability field include other parameters of the other site.
  • the TID Mapping field further includes the identifier of the site at the other end of the direct link.
  • the direct link configuration request message includes each of the multiple sites belonging to the multi-link device 2
  • the Link Info field corresponding to the site, the Link Info field corresponding to each site respectively includes the parameters of each site.
  • the direct link configuration request message includes the correspondence between the sites at both ends of each direct link in the at least one direct link, for each site in the multiple sites,
  • the site is one end of a direct link, and the Link Info field corresponding to this site also includes the identifier of the other end of the direct link.
  • the direct link configuration request message also includes a link request (Requested Link) field
  • the Requested Link field includes a link corresponding to a site that needs to establish a direct link in the multi-link device 2 ID of the field.
  • the multi-link device 3 is discovered through a device discovery process.
  • the device discovery process includes the following steps 11 to 15, respectively.
  • Step 11 The multi-link device 2 sends a direct-connected link discovery request message (TDLS Discovery Request) to the multi-link device 1, and the direct-connected link discovery request message includes the parameters of the multiple sites belonging to the multi-link device 2 and Address of multilink device 3.
  • TDLS Discovery Request direct-connected link discovery request message
  • the parameters of the site in the direct link discovery request message may further include auxiliary information.
  • the auxiliary information includes the beacon interval of the station and the like.
  • the multi-link device 2 sends the direct link discovery request message to the multi-link device 1 through the first site, where the first site is a site in the multi-link device 1 .
  • the direct link discovery request message is a WLAN frame
  • the sender address of the direct link discovery request message is the address of the first site
  • the destination address is the address of the multi-link device 3
  • the recipient address is is the address of the first AP.
  • the sender address, destination address and receiver address are all located in the frame header of the direct link discovery request message.
  • the address of the multi-link device 3 may be the device address of the multi-link device 3 or the address of the second site.
  • the multi-link device 2 sends a direct link discovery request message through a site 21, and the site 21 is the first site.
  • the sender address of the direct link discovery request message is the address of site 11
  • the receiver address is the address of AP11
  • the destination address is the address of site 31
  • site 31 is the second site.
  • the following two direct link discovery request message structures are provided.
  • the two structures are:
  • the payload of the direct link discovery request message includes the Category field, the TDLS Action field, the Dialog Token field, the link Identifier (Link Identifier) field and MLE field.
  • the Category field, the TDLS Action field, the Dialog Token field, and the Link Identifier field include parameters of the first site, and the MLE field includes parameters of each other site in the plurality of sites except the first site.
  • the direct link discovery request message of the first structure shown in FIG. 9 is obtained by adding the MLE field to the current direct link discovery request message.
  • the MLE field includes an Element ID field, a Length field, a Common Info field, and a Link field corresponding to each other site.
  • the Element ID field includes the identification of the MLE field
  • the Length field includes the length of the MLE field
  • the Common Info field includes the common information in the parameters of each other site.
  • the Link field corresponding to the other site includes other information in the parameters of the other site except the common information.
  • the Link fields corresponding to the other sites include the Link ID field, the basic service set identification (BSSID) field, the Channel Information (Channel Information) field, the Assisted Information (Assisted Information) field and the site media medium Control (STA MAC) field.
  • the Link ID field includes the identification of the other station
  • the BSSID field includes the identification of the AP associated with the other station
  • the Channel Information field includes the channel information of the other station
  • the Assisted Information field includes the auxiliary information of the other station
  • the STA MAC field includes the MAC addresses of other sites.
  • the payload of the direct link discovery request message includes the Category field, the TDLS Action field, the Dialog Token field, the Link Identifier field and at least one Multi-band field.
  • Category field, TDLS Action field, Dialog Token field, and Link Identifier field include parameters of the first site.
  • the other site corresponds to a Multi-band field
  • the Multi-band field corresponding to the other site includes parameters of the other site.
  • the Multi-band field corresponding to the other site includes a band ID value field, and the Band ID value field includes the primary channel number of the other site, and the primary channel number is used to identify the channel occupied by the other site.
  • the main channel number corresponding to the 6GHz frequency band is defined in the embodiment of the present application.
  • different values of the Band ID value field represent different main channel numbers, and each main channel number is used to identify a channel, wherein the main channel corresponding to the 6GHz frequency band is defined in the embodiment of the present application The number is 6.
  • Band ID value (main channel number) Channel (band) 0 TV white spaces 1 Sub-1GHz 2 2.4GHz 3 3.6GHz 4 4.9 and 5GHz 5 60GHz 6 6GHz
  • Step 12 The multi-link device 1 uses the first AP to receive the direct-connected link discovery request message, and uses the second AP to send the direct-connected link discovery request message to the multi-link device 3.
  • Both the first AP and the second AP are APs in the multi-link device 1 .
  • the first AP is associated with the first site
  • the second AP is associated with a site in the multilink device 3 .
  • the payload of the direct link discovery request message sent by the multi-link device 1 using the second AP is the same as the payload of the direct link discovery request message received by the first AP.
  • the address of the sender of the direct link discovery request message sent by the second AP is the address of the second AP
  • the address of the receiver is the address of the site associated with the second AP
  • the source address is the address of the multi-link device 1 (multi-link device 1). the device address of link device 1 or the address of the first site).
  • the destination address of the direct link discovery request message received by the multi-link device 1 has the following two cases, and the two cases are:
  • the destination address of the direct link discovery request message received by the multi-link device 1 is the address of the second site
  • the second AP may be an AP associated with the second site, or may not be associated with the second site.
  • the first AP and the second AP may be the same AP, or may be different APs.
  • this step may be as follows: the multi-link device 1 uses the first AP associated with the first site to receive the direct link discovery request message, determines the second AP according to the address of the second site, and uses the first AP associated with the first site to receive the direct link discovery request message.
  • the second AP sends a direct link discovery request message to the multi-link device 3 .
  • the multi-link device 1 may determine the second AP in the following three ways.
  • the three ways are:
  • the multi-link device 1 selects an AP associated with the second site as the second AP according to the address of the second site.
  • the multilink device 1 uses the AP11 to receive a direct link discovery request message sent by the multilink device 2 from the first site 21 , and the destination address of the direct link discovery request message is the address of the site 31 , that is, site 31 is the second site.
  • the multi-link device 1 selects the AP11 associated with the second site 31 as the second AP, and uses the second AP11 to send a direct link discovery request message.
  • the multi-link device 1 determines whether the AP associated with the first site and the AP associated with the second site are the same AP, and if they are the same AP, the AP is selected as the second AP. That is, an AP that is simultaneously associated with the first site and the second site is selected as the second AP.
  • the multilink device 1 uses the AP11 to receive a direct link discovery request message sent by the multilink device 2 from the first site 21 , and the destination address of the direct link discovery request message is the address of the site 31 , that is, site 31 is the second site.
  • the multi-link device 1 determines that the AP1 associated with the first site 21 and the AP11 associated with the second site 31 are the same AP, selects the AP11 as the second AP, and uses the second AP11 to send a direct link discovery request message.
  • the multi-link device 1 selects an AP that is simultaneously associated with a site in the multi-link device 2 and a site in the multi-link device 3 as the second AP.
  • the second AP may be the same as or different from the first AP.
  • the multi-link device 1 uses the AP11 to receive the direct-connect link discovery request message sent by the multi-link device 2 using the first site 21, and selects to connect with the site 21 and the multi-link device in the multi-link device 2 at the same time.
  • the AP11 associated with the station 31 in the multilink device 3 is selected as the second AP, or the AP12 associated with the station 22 in the multilink device 2 and the station 32 in the multilink device 3 at the same time is selected as the second AP.
  • the destination address of the direct link discovery request message received by the multilink device 1 is the device address of the multilink device 3, and the first AP and the second AP may be the same AP or different APs.
  • this step may be: the multi-link device 1 determines the AP associated with each site in the multi-link device 3 according to the device address of the multi-link device 3, and selects one AP from the determined APs As the second AP, the AP sends a direct link discovery request message to the multi-link device 3 through the second AP.
  • the determined APs include an AP associated with the first site, and the multi-link device 1 selects an AP associated with the first site from the determined APs as the second AP. If the determined APs do not include an AP associated with the first site, then randomly select an AP from the determined APs, select the AP with the least load, or select the AP with the most idle network resources as the second AP.
  • Step 13 The multilink device 3 receives the direct link discovery request message, and sends a direct link discovery response message (TDLS Discovery Response) to the multilink device 1.
  • TDLS Discovery Response a direct link discovery response message
  • the direct link discovery response message includes parameters belonging to at least one station in the multi-link device 3 .
  • the multi-link device 3 uses the direct link discovery request message received by the second site associated with the second AP to send the direct link discovery response message with the second site.
  • the direct link discovery response message is a WLAN frame
  • the frame header of the direct link discovery response message includes that the sender's address is the address of the second site, and the receiver's address is the second AP associated with the second site. address, and the destination address is the address of the first site.
  • the multi-link device 3 may also directly send a direct link discovery response message to the multi-link device 1, so that step 14 is not required to be performed, and step 15 is directly performed.
  • an MLE field may be added to the direct link discovery response message, and the MLE field includes parameters belonging to Parameters of at least one station in the multilink device 3 .
  • the MLE field includes an Element ID field, a Length field, a Common Info field, and a Link field corresponding to each of the at least one site.
  • the Element ID field includes the identification of the MLE field
  • the Length field includes the length of the MLE field
  • the Common Info field includes the common information in the parameters of each site in the at least one site
  • the Link field corresponding to each site includes the Other information in the parameter except this common information.
  • Step 14 The multilink device 1 receives the direct link discovery response message, and sends the direct link discovery response message to the multilink device 2.
  • Step 15 The multi-link device 2 receives the direct link discovery response message.
  • the multilink device 2 obtains at least one of the multilink devices 3 from the direct link discovery response message Site parameters.
  • Step 102 the multi-link device 1 uses the first AP to receive the direct-connected link configuration request message, and uses the second AP to send the direct-connected link discovery request message to the multi-link device 3 .
  • the payload of the direct link configuration request message sent by the multi-link device 1 using the second AP is the same as the payload of the direct link configuration request message received by the first AP.
  • the address of the sender of the direct link configuration request message sent by the second AP is the address of the second AP
  • the address of the receiver is the address of the second site associated with the second AP
  • the source address is the address of the multi-link device 1 (device address of multilink device 1 or address of the first site).
  • Step 103 The multi-link device 3 receives the direct link configuration request message, and sends a direct link configuration response message, where the direct link configuration response message includes an indication of agreeing to establish a direct link.
  • the multi-link device 3 uses the second site to send a direct link configuration response message
  • the sender address of the direct link configuration response message is the address of the second site
  • the destination address is the address of the first site
  • the recipient address is the second AP address.
  • the direct link configuration request message includes parameters of multiple sites belonging to the multi-link device 2 and the address of the multi-link device 3, the multi-link device 3
  • the parameters of the multiple sites and the parameters of at least one site of the multilink device 3 determine the two parameters of each direct link in the at least one direct link to be established between the multilink device 2 and the multilink device 3.
  • the corresponding relationship between the end sites, and send a direct link configuration response message, the direct link configuration response message includes an indication of agreeing to establish a direct link and the two ends of each direct link in the at least one direct link. corresponding relationship.
  • the multi-link device 3 selects the data from multiple sites in the multi-link device 2 according to the parameters of the site and the parameters of multiple sites in the multi-link device 2 One site is selected from the sites, so as to obtain the corresponding relationship between the sites at both ends of a direct link, and the corresponding relationship is the corresponding relationship between the site and the selected site.
  • the multi-link device 3 selects a capability corresponding to the capability of the site from the multiple sites in the multi-link device 2 according to the parameters of the multiple sites in the multi-link device 2 and the parameters of the site. a site.
  • the direct link response message includes a correspondence between sites at both ends of the direct link.
  • the true-connection link response message includes the correspondence between the sites at both ends of each direct-connection link in the at least one direct-connection link.
  • the direct link configuration response message further includes parameters of the stations in the multi-link device 3 .
  • the indication of agreeing to establish a direct link includes an indication of agreeing to each direct link in the at least one direct link.
  • the following two direct link configuration response message structures are provided.
  • the two structures are:
  • the payload of the direct link configuration response message includes the Category field, the TDLS Action field, and the Status Code (Status Code) field, Dialog Token field, Capability field, TID Mapping field, EHT Capability field and MLE field.
  • Status Code Status Code
  • the Status Code field includes the consent indication of the direct link corresponding to the second site, and the second site is one end site of the direct link.
  • the TID Mapping field and the EHT Capability field include the parameters of the second site and the identity of the site at the other end of the direct link.
  • the MLE field includes parameters of each other site except the second site in at least one site in the multi-link device 3, the consent indication of the direct link corresponding to each other site, and the identity of the other end site.
  • the direct link configuration response message of the first structure shown in FIG. 12 is obtained by adding the MLE field to the current direct link configuration response message.
  • the MLE field includes an Element ID field, a Length field, a Common Info field, and a Link field corresponding to each other site.
  • the Element ID field includes the identification of the MLE field
  • the Length field includes the length of the MLE field
  • the Common Info field includes the common information in the parameters of each other site.
  • the other site corresponds to a direct link
  • the other site is one end of the direct link
  • the Link field corresponding to the other site includes the parameters of the other site except the common information.
  • the Link field corresponding to the other site includes a Link ID field, a Status Code field, a Capability field, a TID Mapping field and an EHT Capability field.
  • the Link ID field includes the identification of the other site
  • the Status Code field includes the consent indication of the direct link corresponding to the other site
  • the Capability field, the TID Mapping field and the EHT Capability field include other parameters of the other site and the direct link The ID of the other end site.
  • the direct link configuration response message includes the Status Code field, the at least one site in the multi-link device 3 The corresponding Link Info field and link response (Responded Links) field of each site.
  • the Status Code field includes an indication of agreeing to establish a direct link.
  • the site corresponds to a direct link
  • the site is one end of the direct link
  • the Link Info field corresponding to the site includes the The parameters of the site and the identity of the site at the other end of the direct link.
  • the Responded Links field includes the identification of the Link Info field corresponding to the site that successfully established the direct link.
  • Mode 2 In the case that the direct link configuration request message includes parameters of multiple sites belonging to the multilink device 2 and the address of the multilink device 3, the multilink device 3 sends a direct link configuration response message, the direct link configuration response message includes an indication of agreeing to establish a direct link and parameters of the stations in the multi-link device 3 .
  • the multi-link device 3 in the case that the direct link configuration request message includes the correspondence between the two ends of each direct link in the at least one direct link to be established, the multi-link device 3 according to each direct link.
  • the correspondence between the sites at both ends of the link is determined to agree to establish each direct link, and a direct link configuration response message is sent, where the direct link configuration response message includes an indication of agreeing to establish a direct link.
  • the multi-link device 3 determines that it agrees to establish each direct-connect link according to the corresponding relationship between the sites at both ends of each direct-connect link, and then completes the establishment of the connection between the multi-link device 2 and the multi-link device 3. the at least one directly connected link.
  • Step 104 the multilink device 1 receives the direct link configuration response message, and sends the direct link configuration response message to the multilink device 2 .
  • Step 105 The multi-link device 2 receives the direct link configuration response message and sends a direct link confirmation message.
  • the sending of the direct link confirmation message by the multilink device 2 is an optional operation, that is, the multilink device 2 may send the direct link confirmation message, or may not send the direct link confirmation message. Details are as follows:
  • the direct-connected link configuration response message includes an indication of agreeing to establish a direct-connected link and the at least one direct-connected link.
  • the multi-link device 2 determines each direct link based on the corresponding relationship between the sites at both ends of each direct link, and completes the establishment of each direct link.
  • the multi-link device 2 may also send a direct-connect link confirmation message to the multi-link device 3, where the direct-connect link confirmation message includes an indication of agreeing to establish a direct-connect link and each direct link.
  • the correspondence between the sites at both ends of the link may also be sent to the multi-link device 3, where the direct-connect link confirmation message includes an indication of agreeing to establish a direct-connect link and each direct link.
  • the direct link configuration response message includes an indication of agreeing to establish a direct link and an indication in the multi-link device 3.
  • Site parameters The multi-link device 2 determines, according to the parameters of the multiple sites of the multi-link device 2 and the parameters of the site of the multi-link device 3, that in at least one direct link between the multi-link device 2 and the multi-link device 3
  • the corresponding relationship between the two ends of each directly connected link, and send a direct link confirmation message the direct link confirmation message includes an indication of agreeing to establish a direct link and each direct link in the at least one direct link. The correspondence between the sites at both ends of the link.
  • the direct link configuration response message includes an indication of agreeing to establish the direct link.
  • the multi-link device 2 has saved the correspondence between the two ends of the at least one direct link, and the establishment of each direct link is completed.
  • the multi-link device 2 may also send a direct-connect link confirmation message to the multi-link device 3, where the direct-connect link confirmation message includes an indication of agreeing to establish a direct-connect link and each direct link.
  • the correspondence between the sites at both ends of the link may also be sent to the multi-link device 3, where the direct-connect link confirmation message includes an indication of agreeing to establish a direct-connect link and each direct link.
  • the multi-link device 2 uses the first site to send the direct link confirmation message, the sender address of the direct link confirmation message is the address of the first site, and the destination address is the address of the multi-link device 3 And the address of the receiver is the address of the first AP.
  • the direct link confirmation message is a WLAN frame
  • the sender address, destination address, and receiver address are located in the frame header of the direct link confirmation message, agreeing to establish a direct link indication and each direct link.
  • the correspondence between the sites at both ends of the link is located in the payload of the direct link acknowledgment message.
  • the following two direct link confirmation message structures are provided.
  • the two structures are:
  • the payload of the direct link confirmation message includes the Category field, the TDLS Action field, the Status Code field, and the Dialog Token field, Capability field, TID Mapping field, EHT Operation field and MLE field.
  • the Status Code field includes the consent indication of the direct link corresponding to the first site, and the first site is one end site of the direct link.
  • the TID Mapping field and the EHT Operation field include the parameters of the first site and the identifier of the site at the other end of the direct link.
  • the MLE field includes parameters of each other site except the first site in at least one site in the multi-link device 2, the consent indication of the direct link corresponding to each other site, and the identity of the other end site.
  • Each of the at least one site is one end site of the at least one direct link.
  • the direct link configuration response message of the first structure shown in FIG. 14 is obtained by adding the MLE field to the current direct link configuration response message.
  • the MLE field includes an Element ID field, a Length field, a Common Info field, and a Link field corresponding to each other site.
  • the Element ID field includes the identification of the MLE field
  • the Length field includes the length of the MLE field
  • the Common Info field includes the common information in the parameters of each other site.
  • the other site corresponds to a direct link
  • the other site is one end of the direct link
  • the Link field corresponding to the other site includes the parameters of the other site except the common information.
  • the Link field corresponding to the other station includes a Link ID field, a Status Code field, a TID Mapping field and an extremely high throughput operation (EHT Operation) field.
  • the Link ID field includes the identification of the other site
  • the Status Code field includes the consent indication of the direct link corresponding to the other site
  • the TID Mapping field and the EHT Operation field include other parameters of the other site and the other end of the direct link The identity of the site.
  • the direct link confirmation message includes a Status Code field, each of the multiple sites in the multi-link device 2.
  • the Status Code field includes an indication of agreeing to establish a direct link.
  • the site corresponds to a direct link
  • the site is one end of the direct link
  • the Link Info field corresponding to the site includes the site. parameters and the identity of the site at the other end of the direct link.
  • the Confirm Links field includes the identification of the Link Info field corresponding to the site that needs to be confirmed.
  • the multi-link device 1 uses the first AP to receive the direct-connect link confirmation message, and sends the direct-connect link confirmation message to the multi-link device 3. Road confirmation message.
  • the payload of the direct link confirmation message sent by the multi-link device 1 using the second AP is the same as the payload of the direct link confirmation message received by the first AP.
  • the address of the sender of the direct link confirmation message sent by the second AP is the address of the second AP
  • the address of the receiver is the address of the site associated with the second AP
  • the source address is the address of the multi-link device 1 (multi-link). device address of road device 1 or the address of the first station).
  • WLAN frames such as ordinary data frames
  • the frame header structure of the common data frame is the same as the frame header structure of the above-mentioned transmission direct link configuration request message, direct link configuration response message and direct link discovery request message.
  • the process of transmitting other WLAN frames is the same as the above-mentioned process of transmitting WLAN frames such as the direct link configuration request message, the direct link configuration response message, and the direct link discovery request message.
  • the multilink device 2 and the multilink device 3 can use any direct link to transmit information.
  • the transmitted message can be a direct link release request message (TDLS Setup TearDown), a direct link traffic indication (TDLS Peer Traffic Indication), a direct link sleep request message (TDLS Peer PSM Request) and a direct link At least one of the channel switch request message (TDLS Channel Switch Request) and the like.
  • the multi-link device 2 uses the direct-connected link release request message to release the at least one directly-connected link or a part of the directly-connected link in the at least one directly-connected link.
  • the multi-link device 2 determines a link identifier set, the link identifier set includes the identifiers of all or part of the directly connected links in at least one directly connected link, and each identifier in the link identifier set corresponds to the directly connected link Direct link to be released.
  • the multi-link device 2 uses a direct link to send a direct link release request message, where the direct link release request message includes the link identifier set.
  • the multi-link device 3 releases the direct-connected link corresponding to the identifier of each directly-connected link in the link identifier set.
  • the direct link release request message includes the Category field and the Link Information field corresponding to each mark in the link identification set, and each mark corresponds to the Link Information field.
  • the Link Information field includes each ID separately.
  • the multi-link device 3 can also release the at least one directly-connected link or part of the directly-connected links in the at least one directly-connected link.
  • the implementation process please refer to the implementation process of the multi-link device 2.
  • the multi-link device 2.
  • the multi-link device 2 uses the direct-connected link traffic indication information to notify the multi-link device 3 that each direct-connected link in the first direct-connected link set is in the multi-link device In the service flow state of the corresponding site in 2, the first set of direct links includes at least one direct link or part of the at least one direct link.
  • the multi-link device 2 sends a direct-connected link traffic indication message through a direct-connected link, where the direct-connected link traffic indication information includes the identifier of each direct-connected link in the first direct-connected link set and the first direct-connected link.
  • the multi-link device 3 receives the direct-connected link traffic indication message, and extracts the service flow status transmitted by each direct-connected link in the corresponding site in the multi-link device 2 from the direct-connected link traffic indication information, and then obtains: Know the service flow state of the site corresponding to each direct link in the first direct link set in the multi-link device 2 .
  • the direct link traffic indication message includes a Category field and a Link Information field corresponding to each direct link in the first link set.
  • the Link Information field corresponding to the direct link respectively includes the identifier of the direct link and the site corresponding to the direct link in the multi-link device 2 The traffic flow status of the transport.
  • the Link Information field corresponding to the direct link includes the Link Identify field, the PTI Control field and the TPU Buffer Status field, the Link Identify field includes the identifier of the direct link, and the TPU Buffer Status field includes The state of the service flow transmitted by the station corresponding to the direct link in the multi-link device 2 .
  • the multi-link device 3 may also notify the multi-link device 2 of the service flow status of the site corresponding to each direct-connected link in the first direct-connected link set in the multi-link device 3, and the implementation process Reference may be made to the implementation process of the multi-link device 2, and detailed descriptions are omitted here.
  • the multi-link device 2 uses the direct-connected link sleep request information to notify the multi-link device 3 that each direct-connected link in the second set of direct-connected links is in the multi-link device Dormancy information of the corresponding site in 2, the second set of directly connected links includes at least one directly connected link or part of the at least one directly connected link.
  • the multi-link device 2 sends a direct-connected link dormancy request message through a direct-connected link, where the direct-connected link dormancy request message includes the identifier of each direct-connected link in the second direct-connected link set and the second direct-connected link. Dormancy information of the station corresponding to each directly connected link in the connected link set in the multi-link device 2 .
  • the multi-link device 3 receives the direct link dormancy request message, and according to the identifier of each direct link in the second direct link set and each direct link in the second direct link set, Dormancy information of the corresponding site in the multi-link device 2, determine the dormancy time of the corresponding site in the multi-link device 2 for each directly-connected link in the second set of directly-connected links, so that in each directly-connected link
  • the sleep time of the station corresponding to the channel in the multi-link device 2 stops transmitting data on each directly connected link respectively.
  • the direct link dormancy message includes a Category field and a Link Information field corresponding to each direct link in the second link set.
  • the Link Information field corresponding to the direct link respectively includes the identifier of the direct link and the site corresponding to the direct link in the multi-link device 2 sleep information.
  • the Link Information field corresponding to the direct link includes the Link Identify field and the sleep time (Wake up Schdule) field
  • the Link Identify field includes the identity of the direct link
  • the Wake up Schdule field includes The sleep time of the station corresponding to the direct link in the multi-link device 2 .
  • the multi-link device 3 may also notify the multi-link device 2 of the dormancy information of the site corresponding to each directly-connected link in the second directly-connected link set in the multi-link device 3, and the implementation process may be: Referring to the implementation process of the multi-link device 2, the detailed description is omitted.
  • the multi-link device 2 uses the direct link channel switching request to request information, switches the channel currently occupied by each direct link in the third direct link set, and the third direct link
  • the set of connected links includes at least one directly connected link or a part of the at least one directly connected link.
  • the multi-link device 3 determines the target channel after switching of each direct link in the third set of direct links, and uses a direct link to send a direct link channel switching request message, the direct link channel switching
  • the request message includes an identifier of each directly connected link in the third set of directly connected links and an identifier of a target channel corresponding to each directly connected link in the third set of directly connected links.
  • the multi-link device 3 receives the direct link channel switching request message, and switches the channel occupied by each direct link in the third direct link set to each direct link in the third direct link set. The target channel corresponding to the link.
  • the direct link channel switching request message includes a Category field and a Link Information field corresponding to each direct link in the third link set.
  • the Link Information field corresponding to the directly-connected link respectively includes an identifier of the directly-connected link and an identifier of the target channel corresponding to the directly-connected link.
  • the Link Information field corresponding to the direct link includes the Link Identify field and the Sleep Time (Channel Switch Timing) field
  • the Link Identify field includes the identifier of the direct link
  • the Channel Switch Timing field includes The identifier of the target channel corresponding to the direct link.
  • the multi-link device 3 can also switch the channel currently occupied by each direct-connected link in the third set of direct-connected links.
  • the implementation process can refer to the implementation process of the multi-link device 2, and will not be described in detail. .
  • the direct link configuration request message sent by the multi-link device 2 includes parameters of multiple sites belonging to the multi-link device 2 and the address of the multi-link device 3 .
  • the multilink device 3 receives the direct link configuration request message, and sends a direct link configuration response message to the multilink device 2, so as to establish at least one direct link between the multilink device 2 and the multilink device 3. link.
  • the at least one direct link is used to transmit data between the multi-link device 2 and the multi-link device 3, thereby improving the reliability and throughput of the transmitted data.
  • an embodiment of the present application provides an apparatus 200 for establishing a direct link in a wireless local area network.
  • the apparatus 200 may be deployed on the multi-link device 2 provided in the embodiment shown in FIG. 1 or FIG. 6 , include:
  • a processing unit 201 configured to establish at least one direct link between the apparatus 200 and the second multi-link device according to the parameters of the multiple sites belonging to the apparatus 200 and the device information of the second multi-link device , each of the at least one direct link connects one of the multiple sites belonging to the apparatus 200 and one site belonging to the second multi-link device.
  • the parameters belonging to the multiple sites of the apparatus 200 include identification and capability information of each site in the multiple sites.
  • the capabilities of both ends of each direct link in the at least one direct link correspond to the capabilities.
  • the apparatus 200 further includes:
  • a first sending unit 202 configured to send a direct link discovery request message, where the direct link discovery request message includes parameters of multiple sites belonging to the apparatus and an address of the second multi-link device;
  • the first receiving unit 203 is configured to receive a direct link discovery response message sent by the second multi-link device.
  • the first sending unit 202 please refer to the relevant content in step 11 in the embodiment shown in FIG. 6, and the first receiving unit 203 receives the direct link.
  • the relevant content in step 15 in the embodiment shown in FIG. 6 please refer to the relevant content in step 15 in the embodiment shown in FIG. 6 .
  • the apparatus 200 further includes:
  • a second sending unit 204 configured to send a direct link configuration request message, where the direct link configuration request message includes parameters of multiple sites belonging to the apparatus 200 and addresses of the second multi-link device;
  • the second receiving unit 205 is configured to receive a direct link configuration response message, where the direct link configuration response message includes an indication of agreeing to establish a direct link and two ends of each direct link in the at least one direct link Site correspondence.
  • the second sending unit 204 please refer to the relevant content in step 101 in the embodiment shown in FIG. 6, and the second receiving unit 205 receives the direct link
  • the relevant content in step 105 in the embodiment shown in FIG. 6 please refer to the relevant content in step 105 in the embodiment shown in FIG. 6 .
  • the direct link configuration response message further includes parameters of the site of the second multi-link device.
  • the apparatus 200 further includes:
  • a third sending unit 206 configured to send a direct link configuration request message, where the direct link configuration request message includes parameters of multiple sites belonging to the apparatus 200 and addresses of the second multi-link device;
  • a third receiving unit 207 configured to receive a direct link configuration response message, where the direct link configuration response message includes an indication of agreeing to establish a direct link and a parameter of the site of the second multi-link device;
  • the third sending unit 206 is further configured to send a direct-connected link confirmation message, where the direct-connected link confirmation message includes a correspondence between sites at both ends of each direct-connected link in the at least one direct-connected link.
  • the apparatus 200 further includes:
  • a fourth sending unit 208 configured to send a direct link discovery request message, where the direct link discovery request message includes parameters of multiple sites belonging to the apparatus 200 and addresses of the second multi-link device;
  • the fourth receiving unit 209 is configured to receive a direct link discovery response message sent by the second multilink device, where the direct link discovery response message includes parameters of the site of the second multilink device.
  • the fourth sending unit 208 is further configured to send a direct-connected link configuration request message, where the direct-connected link configuration request message includes the data of the two ends of each direct-connected link in the at least one direct-connected link. correspondence and the address of the second multilink device;
  • the fourth receiving unit 209 is further configured to receive a direct link configuration response message, where the direct link configuration response message includes an indication of agreeing to establish a direct link.
  • the fourth sending unit 208 sending the direct link configuration request message please refer to the relevant content in step 101 in the embodiment shown in FIG. 6
  • the fourth receiving unit 209 receives the direct link
  • the relevant content in step 105 in the embodiment shown in FIG. 6 please refer to the relevant content in step 105 in the embodiment shown in FIG. 6 .
  • processing unit 201 is further configured to:
  • the correspondence between the sites at both ends of each direct link in the at least one direct link is determined.
  • the apparatus 200 further includes:
  • the fifth sending unit 210 is configured to send a direct link release request message, where the direct link release request message includes a link identification set, and the link identification set includes all or part of the direct links in the at least one direct link.
  • the identifier of the connected link, and the direct-connected link release request message instructs the second multi-link device to release the direct-connected link corresponding to the identifier of each directly-connected link in the link identifier set.
  • the apparatus 200 further includes:
  • the sixth sending unit 211 is configured to send a direct link traffic indication message, where the direct link traffic indication information includes the identifier of each direct link in the first direct link set and the first direct link the service flow state transmitted by each direct link in the set at the corresponding station in the apparatus 200, the first direct link set includes the at least one direct link or a part of the at least one direct link Direct link.
  • the apparatus 200 further includes:
  • the seventh sending unit 212 is configured to send a direct link dormancy request message, where the direct link dormancy request message includes the identifier of each direct link in the second set of direct links and the second direct link Dormancy information of the site corresponding to each direct link in the set in the apparatus 200, the second set of direct links includes the at least one direct link or a part of the at least one direct link. link.
  • the apparatus 200 further includes:
  • the eighth sending unit 213 is configured to send a direct link channel switching request message, where the direct link channel switching request message includes the identifier of each direct link in the third direct link set and the third direct link The identifier of the target channel corresponding to each direct link in the link set, the direct link channel switching request message instructs the second multi-link device to switch each direct link in the third direct link set The occupied channels are respectively switched to the target channel corresponding to each direct link in the third set of direct links, and the third set of direct links includes at least one direct link or at least one directly linked link. Partial direct link.
  • the processing unit since the sent direct link configuration request message includes parameters of multiple sites in the apparatus, the processing unit establishes at least one direct connection between the apparatus and the second multi-link device links, each of the at least one directly connected link connects one of the multiple sites belonging to the apparatus and one site belonging to the second multi-link device.
  • at least one direct link is established between two multi-link devices, and each of the at least one direct link can be used to transmit data between the two multi-link devices, thereby improving the data transmission rate. Transmission reliability and throughput.
  • an embodiment of the present application provides an apparatus 300 for establishing a direct link in a wireless local area network, and the apparatus 300 may be deployed in the multi-link device 3 in the embodiment shown in FIG. 1 or FIG. 6 , include:
  • a receiving unit 301 configured to receive a direct link configuration request message from the second multi-link device, where the direct link configuration request message includes parameters of multiple sites belonging to the second multi-link device, the apparatus 300 include a site;
  • a processing unit 302 configured to select a site from the multiple sites according to the parameters of the multiple sites and the parameters of the one site;
  • the sending unit 303 is configured to send a direct link configuration response message to the second multi-link device, where the direct link configuration response message includes a corresponding relationship between sites at both ends of a direct link to be established, and the corresponding relationship is The corresponding relationship between the one site and the selected site.
  • step 103 for the detailed implementation process of the site selection by the processing unit 302, reference may be made to the relevant content in step 103 in the embodiment shown in FIG. 6 .
  • the processing unit 302 is configured to select, from the multiple sites, a site whose capability corresponds to the capability of the one site according to the parameters of the multiple sites and the parameters of the one site.
  • the receiving unit receives a direct link configuration request message from the second multi-link device, where the direct link configuration request message includes parameters of multiple sites belonging to the second multi-link device, the The device includes a site.
  • the processing unit selects one station from the plurality of stations according to the parameters of the plurality of stations and the parameter of the one station.
  • the sending unit sends a direct-connected link configuration response message to the second multi-link device, where the direct-connected link configuration response message includes a corresponding relationship between the sites at both ends of a direct-connected link to be established, and the corresponding relationship is the one site and the Correspondence to the selected site. Since the processing unit selects one station from the plurality of stations according to the parameters of the plurality of stations and the parameters of the one station, the apparatus including one station can also communicate with the second multi-link device including the plurality of stations. establish a direct link between them.
  • an embodiment of the present application provides an apparatus 400 for sending a wireless local area network WLAN frame.
  • the apparatus 400 may be deployed in the multilink device 1 in the embodiment shown in FIG. 1 or FIG. 6, including:
  • the receiving unit 401 is configured to use the first access point AP to receive the first WLAN frame sent by the second multi-link device, the first AP belongs to the apparatus 400, and the sender address of the first WLAN frame is the second multi-link device
  • the address of the device, the destination address of the first WLAN frame is the address of the site, the receiver address of the first WLAN frame is the address of the first AP, the site belongs to the third multi-link device, the site is not associated with the first AP, so
  • the apparatus 400 is an access point multi-link device, and the second multi-link device and the third multi-link device are non-access point multi-link devices;
  • the sending unit 402 is used for sending a second WLAN frame by a second AP, the second AP belongs to the third multi-link device, the payload of the second WLAN frame is the same as that of the first WLAN frame, and the station is associated with the second WLAN frame.
  • the sender address of the second WLAN frame is the address of the second AP
  • the receiver address of the second WLAN frame is the address of the site
  • the source address of the second WLAN frame is the address of the second multilink device.
  • the apparatus 400 further includes a processing unit 403, where the processing unit 403 is configured to determine the second AP associated with the site.
  • the first WLAN frame is a direct link configuration request message for establishing at least one direct link between the second multi-link device and the third multi-link device, a direct link A channel configuration response message, a direct link confirmation message, a direct link discovery request message, or a direct link discovery response message.
  • the processing unit may determine the second AP associated with the site, and the sending unit uses the first AP associated with the site.
  • the second AP sends the second WLAN, and because the payload of the second WLAN frame is the same as the payload of the first WLAN frame, the content of the payload part of the first WLAN frame can be sent to the second multi-link device.
  • an embodiment of the present application provides a schematic diagram of an apparatus 500 for establishing a direct link in a wireless local area network.
  • the apparatus 500 may be the multi-link device 2 in any of the above embodiments.
  • the apparatus 500 includes at least one processor 501 , internal connections 502 , memory 503 and at least one transceiver 504 .
  • the apparatus 500 is an apparatus with a hardware structure, and can be used to implement the functional modules in the apparatus 200 described in FIG. 20 .
  • the processing unit 201 in the apparatus 200 shown in FIG. 20 can be implemented by calling the code in the memory 503 by the at least one processor 501, and the first sending unit in the apparatus 200 shown in FIG. 20 can be implemented.
  • the sixth sending unit 211 , the seventh sending unit 212 and the eighth sending unit 213 are implemented by the transceiver 504 .
  • the apparatus 500 may also be used to implement the functions of the multi-link device 2 in any of the foregoing embodiments.
  • processor 501 may be a general-purpose central processing unit (central processing unit, CPU), network processor (network processor, NP), microprocessor, application-specific integrated circuit (application-specific integrated circuit, ASIC) , or one or more integrated circuits used to control the execution of the program of this application.
  • CPU central processing unit
  • NP network processor
  • ASIC application-specific integrated circuit
  • the internal connection 502 described above may include a path for transferring information between the aforementioned components.
  • the internal connection 502 is a single board or a bus or the like.
  • the above transceiver 504 is used to communicate with other devices or communication networks.
  • the above-mentioned memory 503 can be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, a random access memory (random access memory, RAM) or other types of storage devices that can store information and instructions.
  • ROM read-only memory
  • RAM random access memory
  • Types of dynamic storage devices which can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical storage, CD-ROM storage (including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by Any other medium accessed by the computer, but not limited to this.
  • the memory can exist independently and be connected to the processor through a bus.
  • the memory can also be integrated with the processor.
  • the memory 503 is used for storing the application code for executing the solution of the present application, and the execution is controlled by the processor 501 .
  • the processor 501 is configured to execute the application program code stored in the memory 503 and cooperate with at least one transceiver 504, so that the apparatus 500 can realize the functions in the method of the present patent.
  • the processor 501 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 23 .
  • the apparatus 500 may include multiple processors, such as the processor 501 and the processor 507 in FIG. 23 .
  • processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • an embodiment of the present application provides a schematic diagram of an apparatus 600 for establishing a direct link in a wireless local area network.
  • the apparatus 600 may be the multi-link device 3 in any of the above embodiments.
  • the apparatus 600 includes at least one processor 601 , internal connections 602 , memory 603 and at least one transceiver 604 .
  • the apparatus 600 is an apparatus with a hardware structure, and can be used to implement the functional modules in the apparatus 300 described in FIG. 21 .
  • the processing unit 302 in the apparatus 300 shown in FIG. 21 can be implemented by calling the code in the memory 603 by the at least one processor 601, and the receiving unit 301 and the receiving unit 301 in the apparatus 300 shown in FIG.
  • the sending unit 303 can be implemented by the transceiver 604 .
  • the apparatus 600 can also be used to implement the functions of the multi-link device 3 in any of the foregoing embodiments.
  • processor 601 may be a general-purpose central processing unit (central processing unit, CPU), network processor (network processor, NP), microprocessor, application-specific integrated circuit (application-specific integrated circuit, ASIC) , or one or more integrated circuits used to control the execution of the program of this application.
  • CPU central processing unit
  • NP network processor
  • ASIC application-specific integrated circuit
  • the internal connection 602 described above may include a path to transfer information between the above described components.
  • the internal connection 602 is a single board or a bus or the like.
  • the above transceiver 604 is used to communicate with other devices or communication networks.
  • the above-mentioned memory 603 can be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, a random access memory (random access memory, RAM) or other types of storage devices that can store information and instructions.
  • ROM read-only memory
  • RAM random access memory
  • Types of dynamic storage devices which can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical storage, CD-ROM storage (including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by Any other medium accessed by the computer, but not limited to this.
  • the memory can exist independently and be connected to the processor through a bus.
  • the memory can also be integrated with the processor.
  • the memory 603 is used for storing the application code for executing the solution of the present application, and the execution is controlled by the processor 601 .
  • the processor 601 is used to execute the application program code stored in the memory 603 and cooperate with at least one transceiver 604, so that the device 600 can realize the functions in the method of the present patent.
  • the processor 601 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 24 .
  • the apparatus 600 may include multiple processors, for example, the processor 601 and the processor 607 in FIG. 24 .
  • processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • an embodiment of the present application provides a schematic diagram of an apparatus 700 for sending a wireless local area network WLAN frame.
  • the apparatus 700 may be the multi-link device 1 in any of the foregoing embodiments.
  • the apparatus 700 includes at least one processor 701 , internal connections 702 , memory 703 and at least one transceiver 704 .
  • the apparatus 700 is an apparatus with a hardware structure, and can be used to implement the functional modules in the apparatus 400 described in FIG. 22 .
  • the processing unit 403 in the apparatus 400 shown in FIG. 22 can be implemented by calling the code in the memory 703 by the at least one processor 701, and the receiving unit 401 and the receiving unit 401 in the apparatus 400 shown in FIG.
  • the sending unit 402 can be implemented by the transceiver 704 .
  • the apparatus 700 can also be used to implement the functions of the multi-link device 1 in any of the foregoing embodiments.
  • processor 701 may be a general-purpose central processing unit (central processing unit, CPU), network processor (network processor, NP), microprocessor, application-specific integrated circuit (application-specific integrated circuit, ASIC) , or one or more integrated circuits used to control the execution of the program of this application.
  • CPU central processing unit
  • NP network processor
  • ASIC application-specific integrated circuit
  • the internal connection 702 described above may include a path to transfer information between the aforementioned components.
  • the internal connection 702 is a single board or a bus or the like.
  • the above transceiver 704 is used to communicate with other devices or communication networks.
  • the above-mentioned memory 703 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, a random access memory (random access memory, RAM) or other types of storage devices that can store information and instructions.
  • ROM read-only memory
  • RAM random access memory
  • Types of dynamic storage devices which can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical storage, CD-ROM storage (including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by Any other medium accessed by the computer, but not limited to this.
  • the memory can exist independently and be connected to the processor through a bus.
  • the memory can also be integrated with the processor.
  • the memory 703 is used for storing the application program code for executing the solution of the present application, and the execution is controlled by the processor 701 .
  • the processor 701 is configured to execute the application program code stored in the memory 703, and cooperate with at least one transceiver 704, so that the apparatus 700 realizes the functions in the method of the present patent.
  • the processor 701 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 25 .
  • the apparatus 700 may include multiple processors, for example, the processor 701 and the processor 707 in FIG. 25 .
  • processors can be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • an embodiment of the present application is a system for establishing a direct link in a wireless local area network.
  • the system includes: the apparatus 200 shown in FIG. 19 , the apparatus 300 shown in FIG. 20 , and the apparatus shown in FIG. 21 Alternatively, the system includes: the device 500 described in FIG. 22 , the device 600 described in FIG. 23 , and the device 700 described in FIG. 24 .
  • the apparatus 200 described in FIG. 19 or the apparatus 500 described in FIG. 22 may be the multi-link device 2
  • the apparatus 300 described in FIG. 20 or the apparatus 600 described in FIG. 23 may be the multi-link device 3
  • the apparatus 400 described in FIG. 21 or the apparatus 700 described in FIG. 24 may be the multi-link device 1 .

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Abstract

公开了一种建立直连链路、无线局域网帧发送的方法、装置及系统。所述方法包括:第一多链路设备根据属于所述第一多链路设备的多个站点的参数和第二多链路设备的设备信息,建立所述第一多链路设备和所述第二多链路设备之间的至少一条直连链路,所述至少一条直连链路中的每条直连链路连接属于所述第一多链路设备的多个站点中的一个站点和属于所述第二多链路设备的一个站点。本申请能够提高数据传输的可靠性和吞吐量。

Description

建立直连链路、无线局域网帧发送的方法、装置及系统
本申请要求于2020年7月24日提交的申请号为202010725967.1、发明名称为“建立直连链路、无线局域网帧发送的方法、装置及系统”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
本申请涉及通信领域,特别涉及一种建立直连链路、无线局域网帧发送的方法、装置及系统。
背景技术
无线局域网(wireless local area network,WLAN)系统指应用无线通信技术将不同站点(station,STA)连接起来,构成可以互相通信的网络体系。
在WLAN系统中,各STA包括一个媒体接入控制(media access control,MAC)实体和物理层(physical,PHY)实体。STA可以是接入点(AP)或非AP(non-AP)STA。对于任意两个非APSTA,为了便于说明称该两个非APSTA分别为第一STA和第二STA,通过第一STA包括的一个MAC实体和PHY实体,以及第二STA包括的一个MAC实体和PHY实体,可以在第一STA和第二STA之间建立一条直连链路。第一STA和第二STA可以通过该直连链路进行数据传输。
在实现本申请的过程中,发明人发现现有技术至少存在以下问题:
随着WLAN系统需要传输的数据量大幅增加,第一STA和第二STA之间的一条直连链路,已无法满足传输数据的高可靠性和高吞吐量的需求。
发明内容
本申请提供了一种建立直连链路、无线局域网帧发送的方法、装置及系统,以提高数据传输的可靠性和吞吐量。所述技术方案如下:
第一方面,本申请提供了一种在无线局域网中建立直连链路的方法,在所述方法中,第一多链路设备根据属于第一多链路设备的多个站点的参数和第二多链路设备的设备信息,建立第一多链路设备和第二多链路设备之间的至少一条直连链路,该至少一条直连链路中的每条直连链路连接属于第一多链路设备的多个站点中的一个站点和属于第二多链路设备的一个站点。如此实现在两个多链路设备之间建立至少一条直连链路,两个多链路设备之间可使用该至少一条直连链路中的每条直连链路传输数据,从而提高数据传输的可靠性和吞吐量。
在一种可能的实现方式,属于第一多链路设备的多个站点的参数包括该多个站点中每个站点的标识和能力信息,从而可以基于该多个站点的标识和能力信息,可以将第一多链路设备的站点与第二多链路设备的站点进行配对,在配对的两个站点之间建立直连链路。
在另一种可能的实现方式,至少一条直连链路中的每条直连链路两端站点的能力相对应,这样可以保证该两端站点能够成功建立一条直连链路。
在另一种可能的实现方式,第一多链路设备发送直连链路发现请求消息,该直连链路发现请求消息包括属于第一多链路设备的多个站点的参数和第二多链路设备的地址。第一多链路设备接收第二多链路设备发送的直连链路发现响应消息。由于直连链路发现请求消息包括多个站点的参数,从而支持了在第一多链路设备和第二多链路设备之间建立至少一条直连链路。
在另一种可能的实现方式,第一多链路设备发送直连链路配置请求消息,直连链路配置请求消息包括属于第一多链路设备的多个站点的参数和第二多链路设备的地址。第一多链路设备接收直连链路配置响应消息,直连链路配置响应消息包括同意建立直连链路指示和该至少一条直连链路中的每条直连链路两端站点的对应关系。由于直连链路配置请求消息包括属于第一多链路设备的多个站点的参数,以及,直连链路配置响应消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系,从而支持了在第一多链路设备和第二多链路设备之间建立至少一条直连链路。
在另一种可能的实现方式,直连链路配置响应消息还包括第二多链路设备的站点的参数。
在另一种可能的实现方式,第一多链路设备发送直连链路配置请求消息,直连链路配置请求消息包括属于第一多链路设备的多个站点的参数和第二多链路设备的地址。第一多链路设备接收直连链路配置响应消息,直连链路配置响应消息包括同意建立直连链路指示和第二多链路设备的站点的参数。第一多链路设备发送直连链路确认消息,直连链路确认消息包括至少一条直连链路中的每条直连链路两端站点的对应关系。由于直连链路配置请求消息包括属于第一多链路设备的多个站点的参数,以及,直连链路配置响应消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系,从而支持了在第一多链路设备和第二多链路设备之间建立至少一条直连链路。另外,第一多链路设备发送直连链路确认消息,直连链路确认消息包括至少一条直连链路中的每条直连链路两端站点的对应关系,这样可以确保第一多链路设备和第二多链路设备之间建立至少一条直连链路能够被成功建立。
在另一种可能的实现方式,第一多链路设备发送直连链路发现请求消息,直连链路发现请求消息包括属于第一多链路设备的多个站点的参数和第二多链路设备的地址。第一多链路设备接收第二多链路设备发送的直连链路发现响应消息,直连链路发现响应消息包括第二多链路设备的站点的参数。由于直连链路发现请求消息包括属于第一多链路设备的多个站点的参数,以及,直连链路发现响应消息包括第二多链路设备的站点的参数,从而支持了在第一多链路设备和第二多链路设备之间建立至少一条直连链路。
在另一种可能的实现方式,第一多链路设备发送直连链路配置请求消息,直连链路配置请求消息包括至少一条直连链路中的每条直连链路两端站点的对应关系和第二多链路设备的 地址。第一多链路设备接收直连链路配置响应消息,直连链路配置响应消息包括同意建立直连链路指示。由于直连链路配置请求消息包括至少一条直连链路中的每条直连链路两端站点的对应关系,从而支持了在第一多链路设备和第二多链路设备之间建立至少一条直连链路。
在另一种可能的实现方式,第一多链路设备根据第一多链路设备的多个站点的参数和第二多链路设备的站点的参数,确定至少一条直连链路中的每条直连链路两端站点的对应关系。
在另一种可能的实现方式,第一多链路设备发送直连链路释放请求消息,直连链路释放请求消息包括链路标识集合,链路标识集合包括至少一条直连链路中的全部或部分直连链路的标识,直连链路释放请求消息指示第二多链路设备释放所述链路标识集合中的每条直连链路的标识对应的直连链路。如此,可以使用一条直连链路释放请求消息批量释放直连链路,减少了发送消息的数目,以减小对网络资源的占用。
在另一种可能的实现方式,第一多链路设备发送直连链路流量指示消息,直连链路流量指示信息包括第一直连链路集合中的每条直连链路的标识和第一直连链路集合中的每条直连链路在第一多链路设备中对应的站点传输的业务流状态,第一直连链路集合包括至少一条直连链路或至少一条直连链路中的部分直连链路。如此,可以使用一条直连链路流量指示消息批量通知直连链路在第一多链路设备中对应的站点传输的业务流状态,减少了发送消息的数目,以减小对网络资源的占用。
在另一种可能的实现方式,第一多链路设备发送直连链路休眠请求消息,直连链路休眠请求消息包括第二直连链路集合中的每条直连链路的标识和第二直连链路集合中的每条直连链路在第一多链路设备中对应的站点的休眠信息,第二直连链路集合包括至少一条直连链路或至少一条直连链路中的部分直连链路。如此,可以使用一条直连链路休眠请求消息批量通知直连链路在第一多链路设备中对应的站点的休眠信息,减少了发送消息的数目,以减小对网络资源的占用。
在另一种可能的实现方式,第一多链路设备发送直连链路信道切换请求消息,直连链路信道切换请求消息包括第三直连链路集合中的每条直连链路的标识和第三直连链路集合中的每条直连链路对应的目标信道的标识,直连链路信道切换请求消息指示第二多链路设备将第三直连链路集合中的每条直连链路所占用的信道分别切换为第三直连链路集合中的每条直连链路对应的目标信道,第三直连链路集合包括至少一条直连链路或至少一条直连链路中的部分直连链路。如此,可以使用一条直连链路信道切换请求消息批量地切换直连链路的信道,减少了发送消息的数目,以减小对网络资源的占用。
第二方面,本申请提供了一种在无线局域网中建立直连链路的方法,在所述方法中:第一多链路设备接收来自第二多链路设备的直连链路配置请求消息,直连链路配置请求消息包括属于第二多链路设备的多个站点的参数,第一多链路设备包括一个站点。第一多链路设备根据该多个站点的参数和该一个站点的参数,从该多个站点中选择一个站点。第一多链路设 备向第二多链路设备发送直连链路配置响应消息,该直连链路配置响应消息包括待建立的一条直连链路两端的站点的对应关系,该对应关系为该一个站点和选择的站点的对应关系。由于第一多链路设备根据该多个站点的参数和该一个站点的参数从该多个站点中选择一个站点,从而使得包括一个站点的第一多链路设备也可以与包括多个站点的第二多链路设备之间建立直连链路。
在一种可能的实现方式中,第一多链路设备根据该多个站点的参数和该一个站点的参数,从该多个站点中选择能力与一个站点的能力相对应的一个站点,这样可以保证该两端的站点能够成功建立一条直连链路。
第三方面,本申请提供了一种无线局域网WLAN帧发送的方法,在所述方法中:第一多链路设备用第一接入点AP接收第二多链路设备发送的第一WLAN帧,第一AP属于第一多链路设备,第一WLAN帧的发送方地址为第二多链路设备的地址,第一WLAN帧的目的地址为站点的地址,第一WLAN帧的接收方地址为第一AP的地址,该站点属于第三多链路设备,该站点不关联所述第一AP,第一多链路设备为接入点多链路设备,第二多链路设备和第三多链路设备为非接入点多链路设备。第一多链路设备用第二AP发送的第二WLAN帧,第二AP属于第三多链路设备,第二WLAN帧的净荷和第一WLAN帧的净荷相同,该站点关联第二AP,第二WLAN帧的发送方地址为第二AP的地址,第二WLAN帧的接收方地址为该站点的地址,第二WLAN帧的源地址为第二多链路设备的地址。
由于用于接收第一WLAN帧的第一AP和与目的地址对应的站点关联的第二AP不同,第一多链路设备可以确定与该站点关联的第二AP,用第二AP向发送第二WLAN,又由于第二WLAN帧的净荷和第一WLAN帧的净荷相同,从而能够将第一WLAN帧的净荷部分的内容发送给第二多链路设备。
在另一种可能的实现方式中,第一WLAN帧为用于建立第二多链路设备和第三多链路设备之间的至少一条直连链路的直连链路配置请求消息、直连链路配置响应消息、直连链路确认消息、直连链路发现请求消息或直连链路发现响应消息。
第四方面,本申请提供了一种在无线局域网中建立直连链路的装置,用于执行第一方面或第一方面的任意一种可能实现方式中的方法。具体地,所述装置包括用于执行第一方面或第一方面的任意一种可能实现方式的方法的单元。
第五方面,本申请提供了一种在无线局域网中建立直连链路的装置,用于执行第二方面或第二方面的任意一种可能实现方式中的方法。具体地,所述装置包括用于执行第二方面或第二方面的任意一种可能实现方式的方法的单元。
第六方面,本申请提供了一种无线局域网WLAN帧发送的装置,用于执行第三方面或第三方面的任意一种可能实现方式中的方法。具体地,所述装置包括用于执行第三方面或第三方面的任意一种可能实现方式的方法的单元。
第七方面,本申请提供了一种在无线局域网中建立直连链路的装置,所述装置包括:处理器、存储器和收发器。其中,所述处理器、所述存储器和所述收发器之间可以通过总线系统相连。所述存储器用于存储一个或多个程序,所述处理器用于执行所述存储器中的一个或多个程序,使得所述装置完成第一方面或第一方面的任意可能实现方式中的方法。
第八方面,本申请提供了一种在无线局域网中建立直连链路的装置,所述装置包括:处理器、存储器和收发器。其中,所述处理器、所述存储器和所述收发器之间可以通过总线系统相连。所述存储器用于存储一个或多个程序,所述处理器用于执行所述存储器中的一个或多个程序,使得所述装置完成第二方面或第二方面的任意可能实现方式中的方法。
第九方面,本申请提供了一种无线局域网WLAN帧发送的装置,所述装置包括:处理器、存储器和收发器。其中,所述处理器、所述存储器和所述收发器之间可以通过总线系统相连。所述存储器用于存储一个或多个程序,所述处理器用于执行所述存储器中的一个或多个程序,使得所述装置完成第三方面或第三方面的任意可能实现方式中的方法。
第十方面,本申请提供了一种计算机可读存储介质,计算机可读存储介质中存储有程序代码,当其在多链路设备上运行时,使得多链路设备执行上述第一方面、第二方面、第三方面、第一方面的任意可能实现方式、第二方面的任意可能实现方式或第三方面的任意可能实现方式中的方法。
第十一方面,本申请提供了一种包含程序代码的计算机程序产品,当其在多链路设备上运行时,使得多链路设备执行上述第一方面、第二方面、第三方面、第一方面的任意可能实现方式、第二方面的任意可能实现方式或第三方面的任意可能实现方式中的方法。
第十二方面,本申请提供了一种在无线局域网中建立直连链路的系统,所述系统包括:第四方面所述的装置、第五方面所述的装置和第六方面所述的装置;或者,所述系统包括:第七方面所述的装置、第八方面所述的装置和第九方面所述的装置。
附图说明
图1是本申请实施例提供的一种WLAN的结构示意图;
图2是本申请实施例提供的一种多链路设备的结构示意图;
图3是本申请实施例提供的另一种多链路设备的结构示意图;
图4是本申请实施例提供的另一种多链路设备的结构示意图;
图5是本申请实施例提供的另一种多链路设备的结构示意图;
图6是本申请实施例提供的一种在无线局域网中建立直连链路的方法流程图;
图7是本申请实施例提供的一种直连链路配置请求消息的第一种结构示意图;
图8是本申请实施例提供的一种直连链路配置请求消息的第二种结构示意图;
图9是本申请实施例提供的一种直连链路发现请求消息的第一种结构示意图;
图10是本申请实施例提供的一种直连链路发现请求消息的第二种结构示意图;
图11是本申请实施例提供的一种直连链路发现响应消息的结构示意图;
图12是本申请实施例提供的一种直连链路配置响应消息的第一种结构示意图;
图13是本申请实施例提供的一种直连链路配置响应消息的第二种结构示意图;
图14是本申请实施例提供的一种直连链路确认消息的第一种结构示意图;
图15是本申请实施例提供的一种直连链路确认消息的第二种结构示意图;
图16是本申请实施例提供的一种直连链路释放请求消息的结构示意图;
图17是本申请实施例提供的一种直连链路流量指示消息的结构示意图;
图18是本申请实施例提供的一种直连链路休眠消息的结构示意图;
图19是本申请实施例提供的一种直连链路信道切换请求消息的结构示意图;
图20是本申请实施例提供的一种在无线局域网中建立直连链路的装置结构示意图;
图21是本申请实施例提供的另一种在无线局域网中建立直连链路的装置结构示意图;
图22是本申请实施例提供的另一种在无线局域网中建立直连链路的装置结构示意图;
图23是本申请实施例提供的另一种在无线局域网中建立直连链路的装置结构示意图;
图24是本申请实施例提供的另一种在无线局域网中建立直连链路的装置结构示意图;
图25是本申请实施例提供的另一种在无线局域网中建立直连链路的装置结构示意图。
具体实施方式
下面将结合附图对本申请实施方式作进一步地详细描述。
本申请实施例应用于WLAN,该WLAN包括多个多链路设备,该多个多链路设备分为两类,第一类的多链路设备为接入点多链路设备,第一类的多链路设备中包括多个AP。第二类的多链路设备为非接入点多链路设备,第二类的多链路设备中包括多个站点。第一类的多链路设备中的任一个AP可以与第二类的多链路设备中的一个站点关联。
可选的,第一类的多链路设备与第二类的多链路设备之间存在至少一条链路,每条链路连接第一类的多链路设备上的一个AP和第二类的多链路设备上的一个站点。每条链路两端的AP和站点之间的关系即为关联。
例如,参见图1,该WLAN包括多链路设备1、多链路设备2和多链路设备3。多链路设备1为接入点多链路设备,即多链路设备1为第一类的多链路设备。多链路设备2和多链路设备3为非接入点多链路设备,即多链路设备2和多链路设备3为第二类的多链路设备。多链路设备1包括AP11、AP12和AP13,多链路设备2包括站点21、站点22和站点23,多链路设备3包括站点31和站点32。
多链路设备1与多链路设备2之间存在三条链路,该三条链路分别为链路41、链路42和链路43。链路41连接多链路设备1上的AP11和多链路设备2上的站点21,链路42连接多链路设备1上的AP12和多链路设备2上的站点22,链路43连接多链路设备1上的AP13和多链路设备2上的站点23。也就是说,AP11与站点21之间关联,AP12与站点22之间关联,AP13与站点23之间关联。
多链路设备1与多链路设备3之间存在两条链路,该两条链路分别为链路44和链路45。链路44连接多链路设备1上的AP11和多链路设备3上的站点31,链路45连接多链路设备 1上的AP12和多链路设备3上的站点32。也就是说,AP11与站点31之间关联,AP12与站点32之间关联。
可选的,第一类的多链路设备上的每个AP支持不同的频段,第二类的多链路设备上的每个站点支持不同的频段。
可选的,对于关联的AP和站点,该AP支持的频段和该站点支持的频段相同。
可选的,对于关联的AP和站点,该AP和该站点之间的链路可以在该AP和该站点支持的频段上建立的。
可选的,频段为2.4GHz频段、3.6GHz频段、4.9GHz频段、5GHz频段、60GHz频段或6GHz频段等。
例如,仍以图1为例,多链路设备1中的AP11、AP12和AP13分别对应2.4GHz频段、3.6GHz频段和4.9GHz频段。多链路设备2中的站点21、站点22和站点23分别对应2.4GHz频段、3.6GHz频段和4.9GHz频段。多链路设备3中的站点31和站点32分别对应2.4GHz频段和3.6GHz频段。
AP11和站点21之间的链路41是在2.4GHz频段上建立的链路。AP112和站点22之间的链路42是在3.6GHz频段上建立的链路。AP13和站点23之间的链路43是在4.9GHz频段上建立的链路。AP11和站点31之间的链路44是在2.4GHz频段上建立的链路。AP12和站点32之间的链路45是在3.6GHz频段上建立的链路。
可选的,参见图2或图3,第一类的多链路设备中的每个AP的PHY实体相互独立,以及该每个AP的低MAC实体也相互独立。可选的,参见图2,该每个AP的高MAC实体也相互独立;或者,参见图3,该每个AP共享高MAC实体。
可选的,参见图4或图5,第二类的多链路设备中的每个站点的PHY实体相互独立,以及该每个站点的低MAC实体也相互独立。可选的,参见图5,该每个站点的高MAC实体也相互独立;或者,参见图4,该每个站点共享高MAC实体。
可选的,多链路设备3也可包括一个站点,但多链路设备3支持隧道直连链路机制(tunneled direct-link setup,TDLS)。
参见图6,本申请实施例提供了一种WLAN中建立直连链路的方法,该方法可以应用于图1所示的WLAN,用于在两个第二类的多链路设备之间建立至少一条直连链路,即在图1所示WLAN中的多链路设备2和多链路设备3之间建立至少一条直连链路。该方法包括:
步骤101:多链路设备2发送直连链路配置请求消息(TDLS Setup Request),该直连链路配置请求消息包括属于该多链路设备2的多个站点的参数和多链路设备3的地址。
多链路设备2中的多个站点的参数包括该多个站点中的每个站点的标识和能力信息。即对于该多个站点中的任一个站点,该站点的参数包括该站点的标识和能力信息。
可选的,该站点的标识为该站点的MAC地址或WLAN系统为该站点分配的标识等。
可选的,该站点的能力信息包括该站点支持的频段等。
可选的,该站点的参数还包括与该站点关联的AP的标识,该站点的信道信息等中的至少一个。
可选的,该站点的信道信息包括该站点的主信道号和带宽大小等。
在本步骤中,多链路设备2通过第一站点向多链路设备1发送该直连链路配置请求消息, 第一站点为多链路设备1中的一个站点。
可选的,直连链路配置请求消息的发送方地址为第一站点的地址,目的地址为多链路设备3的地址,以及,接收方地址为第一AP的地址。第一AP为多链路设备1中的一个AP,第一AP与第一站点关联,即第一AP与第一站点之间存在链路。
可选的,该直连链路配置请求消息是一个WLAN帧,该发送方地址、目的地址和接收方地址位于该直连链路配置请求消息的帧头中。
可选的,多链路设备3的地址可以为多链路设备3的设备地址或第二站点的地址,第二站点为多链路设备3中的一个站点。
可选的,多链路设备3的设备地址为多链路设备3的MAC地址或网际互连协议(internet protocol,IP)地址等。第一站点的地址可以为第一站点的MAC地址或IP地址等。第二站点的地址可以为第二站点的MAC地址或IP地址。第一AP的地址可以为第一AP的MAC地址或IP地址等。
可选的,属于多链路设备2的多个站点的参数可以位于该直连链路配置请求消息的净荷中。
可选的,在发送该直连链路配置请求消息之前,多链路设备2可以从上层应用中获取多链路设备3的地址。例如,该多链路设备2可以通过输入界面,获取被输入到该输入界面的多链路设备3的地址。再如,该多链路设备2可以通过扫码应用,扫描包括多链路设备3的地址的图形码,得到多链路设备3的地址。
可选的,该直连链路配置请求消息包括待建立的至少一条直连链路中的每条直连链路两端站点的对应关系。待建立的至少一条直连链路是多链路设备2和多链路设备3之间待建立的直连链路。对于该至少一条直连链路中的任一个直连链路,位于该直连链路一端的站点为多链路设备2中的一个站点,位于该直连链路另一端的站点为多链路设备3中的一个站点。该直连链路两端站点的对应关系包括位于该直连链路一端站点的参数和位于该直连链路另一端站点的标识。
可选的,该至少一条直连链路中的每条直连链路两端站点的能力相对应。所谓两端站点的能力相对应是指两端站点的能力重叠,例如,对于任一条直连链路,该一条直连链路的一端站点支持的频段与该一条直连链路的另一端站点支持的频段相同或支持的频段存在重叠。或者,该一条直连链路的一端站点支持的协议号与该一条直连链路的另一端站点支持的协议号存在交集。
例如,参见图1,假设待建立的直连链路包括多链路设备2中的站点21和多链路设备3中的站点31之间的直连链路1和多链路设备2中的站点22和多链路设备3中的站点32之间的直连链路2。该直连链路配置请求消息包括直连链路1两端站点的对应关系和直连链路2两端站点的对应关系。直连链路1两端站点的对应关系包括站点21的参数和站点31的标识,直连链路2两端站点的对应关系包括站点22的参数和站点32的标识。
可选的,该直连链路配置请求消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系的情况下,多链路设备2还获取多链路设备3中的至少一个站点的参数,根据多链路设备2中的多个站点的参数和多链路设备3中的至少一个站点的参数,确定该至少一条直连链路中的每条直连链路两端站点的对应关系。
可选的,多链路设备2可以通过设备发现过程,获取多链路设备3中的至少一个站点的 参数,设备发现过程的详细实现,将在后续内容进行详细说明,在此先不详细介绍。
可选的,在本步骤中,提供了如下两种直连链路配置请求消息的结构。该两种结构分别为:
参见图7所示的直连链路配置请求消息的第一种结构,在第一种结构中,直连链路配置请求消息的净荷包括类别(Category)字段、TDLS行为(TDLS Action)字段、会话令牌(Dialog Token)字段、能力(Capability)字段,业务标识映射(traffic identifier,TID Mapping)字段,极高吞吐量能力(extremely high throughput capability,EHT Capability)字段和多链路元素(multiple link element,MLE)字段等。
TID Mapping字段,EHT Capability字段为新增字段。
TID Mapping字段和EHT Capability字段包括第一站点的参数。可选的,TID Mapping字段包括第一站点的标识,EHT Capability字段包括第一站点的能力信息。
在该直连链路配置请求消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系的情况下,第一站点是一条直连链路的一端站点,该TID Mapping字段还包括该一条直连链路的另一端站点的标识。该一条直连链路的另一端站点为多链路设备3中的站点。
直连链路配置请求消息的MLE字段包括该多个站点中除第一站点之外的每个其他站点的参数。
图7所示的第一种结构的直连链路配置请求消息是在目前的直连链路配置请求消息的基础上增加MLE字段得到的。
仍参见图7,直连链路配置请求消息的MLE字段包括元素标识(Element ID)字段、长度(Length)字段、共同信息(Common Info)字段和每个其他站点对应的链路(Link)字段。其中,Element ID字段包括该MLE字段的标识,Length字段包括该MLE字段的长度,Common Info字段包括每个其他站点的参数中的共同信息。对于每个其他站点,该其他站点对应的Link字段包括该其他站点的参数中除该共同信息之外的其他信息。
可选的,在该直连链路配置请求消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系的情况下,该其他站点是一条直连链路的一端站点,该其他站点对应的Link字段还包括位于该一条直连链路的另一端站点的标识。
仍参见图7,该其他站点对应的Link字段包括链路标识(Link ID)字段,Capability字段,TID Mapping字段和EHT Capability字段。Link ID字段包括该其他站点的标识,Capability字段,TID Mapping字段和EHT Capability字段包括该其他站点的其他参数。可选的,TID Mapping字段还包括该一条直连链路的另一端站点的标识。
参见图8所示的直连链路配置请求消息的第二种结构,在第二种结构中,直连链路配置请求消息包括属于多链路设备2中的该多个站点中的每个站点对应的链路信息(Link Info)字段,每个站点对应的Link Info字段分别包括每个站点的参数。
可选的,在该直连链路配置请求消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系的情况下,对于该多个站点中的每个站点,该站点为一条直连链路的一端站点,该站点对应的Link Info字段还包括该条直连链路的另一端站点的标识。
可选的,参见图8,该直连链路配置请求消息还包括链路请求(Requested Link)字段,该Requested Link字段包括多链路设备2中的需要建立直连链路的站点对应的link字段的标识。
可选的,多链路设备2执行本步骤之前,通过设备发现过程发现多链路设备3。该设备发现过程包括如下11至15的步骤,分别为。
步骤11:多链路设备2向多链路设备1发送直连链路发现请求消息(TDLS Discovery Request),该直连链路发现请求消息包括属于多链路设备2的多个站点的参数和多链路设备3的地址。
可选的,对于多链路设备2的多个站点中的每个站点,在直连链路发现请求消息中该站点的参数还可以包括辅助信息。该辅助信息包括该站点的信标间隔等。
在本步骤中,多链路设备2通过第一站点向多链路设备1发送该直连链路发现请求消息,第一站点为多链路设备1中的一个站点。
可选的,该直连链路发现请求消息是一个WLAN帧,该直连链路发现请求消息的发送方地址为第一站点的地址,目的地址为多链路设备3的地址,接收方地址为第一AP的地址。
发送方地址、目的地址和接收方地址均位于该直连链路发现请求消息的帧头中。
可选的,多链路设备3的地址可以为多链路设备3的设备地址或第二站点的地址。
例如,参见图1,多链路设备2通过站点21发送直连链路发现请求消息,站点21即为第一站点。该直连链路发现请求消息的发送方地址为站点11的地址,接收方地址为AP11的地址,目的地址为站点31的地址,站点31为第二站点。
可选的,在本步骤中,提供了如下两种直连链路发现请求消息的结构。该两种结构分别为:
参见图9所示的直连链路发现请求消息的第一种结构,在第一种结构中,直连链路发现请求消息的净荷包括Category字段、TDLS Action字段、Dialog Token字段、链路标识(Link Identifier)字段和MLE字段。
Category字段、TDLS Action字段、Dialog Token字段和Link Identifier字段包括第一站点的参数,MLE字段包括该多个站点中除第一站点之外的每个其他站点的参数。
图9所示的第一种结构的直连链路发现请求消息是在目前的直连链路发现请求消息的基础上增加MLE字段得到的。
仍参见图9,MLE字段包括Element ID字段、Length字段、Common Info字段和每个其他站点对应的Link字段。其中,Element ID字段包括MLE字段的标识、Length字段包括MLE字段的长度,Common Info字段包括每个其他站点的参数中的共同信息。对于每个其他站点,该其他站点对应的Link字段包括该其他站点的参数中除该共同信息之外的其他信息。
仍参见图9,该其他站点对应的Link字段包括Link ID字段,基本服务集标识(basic service set identify,BSSID)字段,信道信息(Channel Information)字段,辅助信息(Assisted Information)字段和站点媒体介质控制(STA MAC)字段。Link ID字段包括该其他站点的标识,BSSID字段包括与该其他站点关联的AP的标识,Channel Information字段包括该其他站点的信道信息,Assisted Information字段包括该其他站点的辅助信息,STA MAC字段包括该其他站点的MAC地址。
参见图10所示的直连链路发现请求消息的第二种结构,在第二种结构中,直连链路发现请求消息的净荷包括Category字段、TDLS Action字段、Dialog Token字段、Link Identifier字段和至少一个多频段(Multi-band)字段。
Category字段、TDLS Action字段、Dialog Token字段和Link Identifier字段包括第一站点 的参数。对于该多个站点中除第一站点之外的每个其他站点,该其他站点对应一个Multi-band字段,该其他站点对应的Multi-band字段包括该其他站点的参数。
该其他站点对应的Multi-band字段中包括频段标识值(Band ID value)字段,该Band ID value字段包括该其他站点的主信道号,该主信道号用于标识该其他站点占用的信道。其中,目前还没有6GHz频段对应的主信道号。在本申请实施例定义了6GHz频段对应的主信道号。
例如,参见下表1,Band ID value字段的不同取值代表不同的主信道号,每个主信道号用于标识一种信道,其中,在本申请实施例中定义了6GHz频段对应的主信道号为6。
表1
Band ID value(主信道号) 信道(频段)
0 TV white spaces
1 Sub-1GHz
2 2.4GHz
3 3.6GHz
4 4.9和5GHz
5 60GHz
6 6GHz
步骤12:多链路设备1用第一AP接收直连链路发现请求消息,用第二AP向多链路设备3发送直连链路发现请求消息。
第一AP和第二AP均为多链路设备1中的AP。第一AP与第一站点关联,第二AP与多链路设备3中的一个站点关联。
多链路设备1用第二AP发送的直连链路发现请求消息的净荷和用第一AP接收的直连链路发现请求消息的净荷相同。用第二AP发送的直连链路发现请求消息的发送方地址为第二AP的地址、接收方地址为与第二AP关联的站点的地址,源地址为多链路设备1的地址(多链路设备1的设备地址或第一站点的地址)。
可选的,多链路设备1接收的直连链路发现请求消息的目的地址有如下两种情况,该两种情况分别为:
第一种情况,多链路设备1接收的直连链路发现请求消息的目的地址为第二站点的地址,第二AP可能是与第二站点关联的AP,也可能不是与第二站点关联的AP。第一AP和第二AP可能为同一AP,也可能为不同AP。
在第一种情况下,本步骤可以为:多链路设备1用与第一站点关联的第一AP接收该直连链路发现请求消息,根据第二站点的地址确定第二AP,用第二AP向多链路设备3发送直连链路发现请求消息。
可选的,多链路设备1可以通过如下三种方式,确定第二AP。该三种方式分别为:
第一种方式,多链路设备1根据第二站点的地址选择与第二站点关联的一个AP作为第二AP。
例如,参见图1,多链路设备1用AP11接收多链路设备2用第一站点21发送的直连链路发现请求消息,该直连链路发现请求消息的目的地址为站点31的地址,即站点31为第二站点。多链路设备1选择与第二站点31关联的AP11作为第二AP,用第二AP11发送直连链 路发现请求消息。
第二种方式,多链路设备1确定与第一站点关联的AP和与第二站点关联的AP是否为同一AP,如果是同一个AP,则选择该AP为作为第二AP。即选择同时与第一站点和第二站点关联的AP作为第二AP。
例如,参见图1,多链路设备1用AP11接收多链路设备2用第一站点21发送的直连链路发现请求消息,该直连链路发现请求消息的目的地址为站点31的地址,即站点31为第二站点。多链路设备1确定与第一站点21关联的AP1和与第二站点31关联的AP11为同一AP,选择AP11作为第二AP,用第二AP11发送直连链路发现请求消息。
第三种方式,多链路设备1选择同时与多链路设备2中的一个站点和与多链路设备3中的一个站点关联的AP作为第二AP。
在第三种方式中,第二AP可能与第一AP相同或不同。例如,仍参见图1,多链路设备1用AP11接收多链路设备2用第一站点21发送的直连链路发现请求消息,选择同时与多链路设备2中的站点21和多链路设备3中的站点31关联的AP11作为第二AP,或者,选择同时与多链路设备2中的站点22和多链路设备3中的站点32关联的AP12作为第二AP。
第二种情况,多链路设备1接收的直连链路发现请求消息的目的地址为多链路设备3的设备地址,第一AP和第二AP可能为同一AP,也可能为不同AP。
在第二种情况下,本步骤可以为:多链路设备1根据多链路设备3的设备地址,确定与多链路设备3中的每个站点关联的AP,从确定的AP中选择一个AP作为第二AP,通过第二AP向多链路设备3发送直连链路发现请求消息。
可选的,在确定的AP中包括与第一站点关联的AP,多链路设备1从确定的AP中选择与第一站点关联的AP作为第二AP。在确定的AP中不包括与第一站点关联的AP,则从确定的AP中随机选择一个AP、选择负载最小的AP或选择空闲网络资源最多的AP作为第二AP。
步骤13:多链路设备3接收直连链路发现请求消息,向多链路设备1发送直连链路发现响应消息(TDLS Discovery Response)。
可选的,该直连链路发现响应消息包括属于多链路设备3中的至少一个站点的参数。
在本步骤中,多链路设备3用与第二AP关联的第二站点接收的直连链路发现请求消息,用第二站点发送直连链路发现响应消息。
可选的,直连链路发现响应消息为一个WLAN帧,直连链路发现响应消息的帧头包括发送方地址为第二站点的地址,接收方地址为与第二站点关联的第二AP的地址,目的地址为第一站点的地址。
可选的,多链路设备3也可以直接向多链路设备1发送直连链路发现响应消息,这样不需要执行步骤14,直接执行步骤15。
可选的,在该直连链路发现响应消息包括属于多链路设备3中的至少一个站点的参数的情况下,可以在直连链路发现响应消息中增加MLE字段,该MLE字段包括属于多链路设备3中的至少一个站点的参数。
参见图11所示的直连链路发现响应消息的结构,该MLE字段包括Element ID字段、Length字段、Common Info字段和该至少一个站点中的每个站点对应的Link字段。
Element ID字段包括MLE字段的标识,Length字段包括MLE字段的长度,Common Info字段包括该至少一个站点中的每个站点的参数中的共同信息,每个站点对应的Link字段分别 包括每个站点的参数中除该共同信息之外的其他信息。
步骤14:多链路设备1接收直连链路发现响应消息,向多链路设备2发送直连链路发现响应消息。
可选的,多链路设备1向多链路设备2发送直连链路发现响应消息的详细实现过程,可以参见上述步骤12中,多链路设备1向多链路设备3发送直连链路发现请求消息的详细实现过程,在此不再详细说明。
步骤15:多链路设备2接收直连链路发现响应消息。
在直连链路发现响应消息包括多链路设备3中的至少一个站点的参数的情况下,多链路设备2从该直连链路发现响应消息中获取多链路设备3中的至少一个站点的参数。
步骤102:多链路设备1用第一AP接收直连链路配置请求消息,用第二AP向多链路设备3发送直连链路发现请求消息。
多链路设备1用第二AP发送的直连链路配置请求消息的净荷和用第一AP接收的直连链路配置请求消息的净荷相同。用第二AP发送的直连链路配置请求消息的发送方地址为第二AP的地址、接收方地址为与第二AP关联的第二站点的地址,源地址为多链路设备1的地址(多链路设备1的设备地址或第一站点的地址)。
可选的,多链路设备1向多链路设备3发送直连链路配置请求消息的详细实现过程,可以参见上述步骤12中,多链路设备1向多链路设备3发送直连链路配置请求消息的详细实现过程,在此不再详细说明。
步骤103:多链路设备3接收直连链路配置请求消息,发送直连链路配置响应消息,该直连链路配置响应消息包括同意建立直连链路指示。
可选的,多链路设备3用第二站点发送直连链路配置响应消息,该直连链路配置响应消息的发送方地址为第二站点的地址,目的地址为第一站点的地址,接收方地址为第二AP地址。
在本步骤中,可以通过如下三种方式来实现,该三种方式分别为:
方式一,在该直连链路配置请求消息包括属于该多链路设备2的多个站点的参数和多链路设备3的地址的情况下,多链路设备3根据多链路设备2的多个站点的参数和多链路设备3的至少一个站点的参数,确定多链路设备2和多链路设备3之间待建立的至少一条直连链路中的每条直连链路两端站点的对应关系,发送直连链路配置响应消息,该直连链路配置响应消息包括同意建立直连链路指示和该至少一条直连链路中的每条直连链路两端站点的对应关系。
可选的,对于多链路设备3中的每个站点,多链路设备3根据该站点的参数和多链路设备2中的多个站点的参数,从多链路设备2中的多个站点中选择一个站点,从而得到一条直连链路两端站点的对应关系,该对应关系为该站点和选择的站点的对应关系。
可选的,多链路设备3根据多链路设备2中的多个站点的参数和该站点的参数,从多链路设备2中的多个站点中选择能力与该站点的能力相对应的一个站点。
可选的,在本步骤中,多链路设备3中可能只有一个站点,该直连链路响应消息包括一条直连链路两端站点的对应关系。或者,多链路设备3中可能有多个站点,该真连链路响应消息包括至少一条直连链路中的每条直连链路两端站点的对应关系。
可选的,该直连链路配置响应消息还包括多链路设备3中的站点的参数。
可选的,该同意建立直连链路指示包括该至少一条直连链路中的每条直连链路的同意指示。
可选的,在本步骤中,提供了如下两种直连链路配置响应消息的结构。该两种结构分别为:
参见图12所示的直连链路配置响应消息的第一种结构,在第一种结构中,直连链路配置响应消息的净荷包括Category字段、TDLS Action字段、状态码(Status Code)字段、Dialog Token字段,Capability字段,TID Mapping字段,EHT Capability字段和MLE字段。
Status Code字段包括第二站点对应的直连链路的同意指示,第二站点是该直连链路的一端站点。TID Mapping字段,EHT Capability字段包括第二站点的参数和该直连链路的另一端站点的标识。
MLE字段包括多链路设备3中的至少一个站点中除第二站点之外的每个其他站点的参数,每个其他站点对应的直连链路的同意指示和另一端站点的标识。
图12所示的第一种结构的直连链路配置响应消息是在目前的直连链路配置响应消息的基础上增加MLE字段得到的。
仍参见图12,MLE字段包括Element ID字段、Length字段、Common Info字段和每个其他站点对应的Link字段。其中,Element ID字段包括该MLE字段的标识,Length字段包括该MLE字段的长度,Common Info字段包括每个其他站点的参数中的共同信息。对于每个其他站点,该其他站点对应一条直连链路,该其他站点是该直连链路的一端站点,该其他站点对应的Link字段包括该其他站点的参数中除该共同信息之外的其他信息,该直连链路的同意指示和该直连链路的另一端站点的标识。
仍参见图12,该其他站点对应的Link字段包括Link ID字段,Status Code字段,Capability字段,TID Mapping字段和EHT Capability字段。Link ID字段包括该其他站点的标识,Status Code字段包括该其他站点对应的直连链路的同意指示,Capability字段,TID Mapping字段和EHT Capability字段包括该其他站点的其他参数和该直连链路的另一端站点的标识。
参见图13所示的直连链路配置响应消息的第二种结构,在第二种结构中,直连链路配置响应消息包括Status Code字段、多链路设备3中的该至少一个站点中的每个站点对应的Link Info字段和链路响应(Responded Links)字段。该Status Code字段包括同意建立直连链路指示,该对于每个站点,该站点对应一条直连链路,该站点为该直连链路的一端站点,该站点对应的Link Info字段分别包括该站点的参数和该直连链路的另一端站点的标识。Responded Links字段包括成功建立直连链路的站点对应的Link Info字段的标识。
方式二,在该直连链路配置请求消息包括属于该多链路设备2的多个站点的参数和多链路设备3的地址的情况下,多链路设备3发送直连链路配置响应消息,该直连链路配置响应消息包括同意建立直连链路指示和多链路设备3中的站点的参数。
方式三,在该直连链路配置请求消息包括待建立的至少一条直连链路中的每条直连链路两端站点的对应关系的情况下,多链路设备3根据该每条直连链路两端站点的对应关系确定同意建立每条直连链路,发送直连链路配置响应消息,该直连链路配置响应消息包括同意建立直连链路指示。
在方式三中,多链路设备3根据该每条直连链路两端站点的对应关系确定同意建立每条直连链路后,完成建立多链路设备2和多链路设备3之间的该至少一条直连链路。
步骤104:多链路设备1接收直连链路配置响应消息,向多链路设备2发送直连链路配置响应消息。
可选的,多链路设备1向多链路设备2发送直连链路配置响应消息的详细实现过程,可以参见上述步骤12中,多链路设备1向多链路设备3发送直连链路发现请求消息的详细实现过程,在此不再详细说明。
步骤105:多链路设备2接收直连链路配置响应消息,发送直连链路确认消息。
多链路设备2发送直连链路确认消息是可选的操作,即多链路设备2可以发送直连链路确认消息,也可以不发送直连链路确认消息。详细说明如下:
可选的,在直连链路配置响应消息是多链路设备3采用上述方式一发送的情况,该直连链路配置响应消息包括同意建立直连链路指示和该至少一条直连链路中的每条直连链路两端站点的对应关系。多链路设备2基于该每条直连链路两端站点的对应关系,确定该每条直连链路,完成建立该每条直连链路。
可选的,在此情况下,多链路设备2还可向多链路设备3发送直连链路确认消息,该直连链路确认消息包括同意建立直连链路指示和该每条直连链路两端站点的对应关系。
可选的,在直连链路配置响应消息是多链路设备3采用上述方式二发送的情况,该直连链路配置响应消息包括同意建立直连链路指示和多链路设备3中的站点的参数。多链路设备2根据多链路设备2的多个站点的参数和多链路设备3的站点的参数,确定多链路设备2和多链路设备3之间的至少一条直连链路中的每条直连链路两端站点的对应关系,发送直连链路确认消息,该直连链路确认消息包括同意建立直连链路指示和该至少一条直连链路中的每条直连链路两端站点的对应关系。
可选的,在直连链路配置响应消息是多链路设备3采用上述方式三发送的情况,该直连链路配置响应消息包括同意建立直连链路指示。在此情况下,多链路设备2中已保存有该至少一条直连链路两端站点的对应关系,完成建立该每条直连链路。
可选的,在此情况下,多链路设备2还可向多链路设备3发送直连链路确认消息,该直连链路确认消息包括同意建立直连链路指示和该每条直连链路两端站点的对应关系。
可选的,多链路设备2用第一站点发送该直连链路确认消息,该直连链路确认消息的发送方地址为第一站点的地址,目的地址为多链路设备3的地址以及接收方地址为第一AP的地址。
可选的,该直连链路确认消息为一个WLAN帧,发送方地址、目的地址和接收方地址位于直连链路确认消息的帧头,同意建立直连链路指示和该每条直连链路两端站点的对应关系位于直连链路确认消息的净荷。
可选的,在本步骤中,提供了如下两种直连链路确认消息的结构。该两种结构分别为:
参见图14所示的直连链路确认消息的第一种结构,在第一种结构中,直连链路确认消息的净荷包括Category字段、TDLS Action字段、Status Code字段、Dialog Token字段,Capability字段,TID Mapping字段,EHT Operation字段和MLE字段。
Status Code字段包括第一站点对应的直连链路的同意指示,第一站点是该直连链路的一端站点。TID Mapping字段,EHT Operation字段包括第一站点的参数和该直连链路的另一端站点的标识。
MLE字段包括多链路设备2中的至少一个站点中除第一站点之外的每个其他站点的参数, 每个其他站点对应的直连链路的同意指示和另一端站点的标识。该至少一个站点均是该至少一条直连链路一端站点。
图14所示的第一种结构的直连链路配置响应消息是在目前的直连链路配置响应消息的基础上增加MLE字段得到的。
仍参见图14,MLE字段包括Element ID字段、Length字段、Common Info字段和每个其他站点对应的Link字段。其中,Element ID字段包括该MLE字段的标识,Length字段包括该MLE字段的长度,Common Info字段包括每个其他站点的参数中的共同信息。对于每个其他站点,该其他站点对应一条直连链路,该其他站点是该直连链路的一端站点,该其他站点对应的Link字段包括该其他站点的参数中除该共同信息之外的其他信息,该直连链路的同意指示和该直连链路的另一端站点的标识。
仍参见图14,该其他站点对应的Link字段包括Link ID字段,Status Code字段,TID Mapping字段和极高吞吐量操作(EHT Operation)字段。Link ID字段包括该其他站点的标识,Status Code字段包括该其他站点对应的直连链路的同意指示,TID Mapping字段和EHT Operation字段包括该其他站点的其他参数和该直连链路的另一端站点的标识。
参见图15所示的直连链路确认消息的第二种结构,在第二种结构中,直连链路确认消息包括Status Code字段、多链路设备2中的该多个站点中的每个站点对应的Link Info字段和链路确认(Confirm Links)字段。该Status Code字段包括同意建立直连链路指示,对于每个站点,该站点对应一条直连链路,该站点为该直连链路的一端站点,该站点对应的Link Info字段分别包括该站点的参数和该直连链路的另一端站点的标识。Confirm Links字段包括需要确认的站点对应的Link Info字段的标识。
可选的,在多链路设备2用第一站点发送直连链路确认消息后,多链路设备1用第一AP接收直连链路确认消息,向多链路设备3发送直连链路确认消息。
可选的,多链路设备1用第二AP发送的直连链路确认消息的净荷和用第一AP接收的直连链路确认消息的净荷相同。用第二AP发送的直连链路确认消息的发送方地址为第二AP的地址、接收方地址为与第二AP关联的站点的地址,源地址为多链路设备1的地址(多链路设备1的设备地址或第一站点的地址)。多链路设备3接收到直连链路确认消息后,完成多链路设备2与多链路设备3之间的至少一条直连链路的建立过程。
其中,多链路设备2和多链路设备3之间还可能传输其他WLAN帧,例如普通数据帧。普通数据帧的帧头结构和上述传输直连链路配置请求消息、直连链路配置响应消息和直连链路发现请求消息的帧头结构相同。传输其他WLAN帧的过程与上述传输直连链路配置请求消息、直连链路配置响应消息和直连链路发现请求消息等WLAN帧的过程相同。
可选的,在建立完多链路设备2和多链路设备3之间的至少一条直连链路后,多链路设备2和多链路设备3可以使用任一条直连链路来传输消息。传输的消息可以为直连链路释放请求消息(TDLS Setup TearDown),直连链路流量指示信息(TDLS Peer Traffic Indication)、直连链路休眠请求消息(TDLS Peer PSM Request)和直连链路信道切换请求消息(TDLS Channel Switch Request)等中的至少一个。接下来对该几个消息分别一一说明。
对于直连链路释放请求消息,多链路设备2使用直连链路释放请求消息释放该至少一条直连链路或该至少一条直连链路中的部分直连链路。在实现时:
多链路设备2确定链路标识集合,该链路标识集合包括至少一条直连链路中的全部或部 分直连链路的标识,链路标识集合中的每个标识对应的直连链路为待释放的直连链路。多链路设备2使用一条直连链路发送直连链路释放请求消息,该直连链路释放请求消息包括该链路标识集合。多链路设备3释放该链路标识集合中的每条直连链路的标识对应的直连链路。
可选的,参见图16所示的直连链路释放请求消息的结构,直连链路释放请求消息包括Category字段和链路标识集合中的每个标识对应的Link Information字段,每个标识对应的Link Information字段分别包括每个标识。
可选的,多链路设备3也可以释放该至少一条直连链路或该至少一条直连链路中的部分直连链路,实现过程可以参见多链路设备2的实现过程,就不再详细说明。
对于直连链路流量指示消息,多链路设备2使用直连链路流量指示信息,向多链路设备3通知第一直连链路集合中的每条直连链路在多链路设备2中对应的站点的业务流状态,第一直连链路集合包括至少一条直连链路或至少一条直连链路中的部分直连链路。在实现时:
多链路设备2通过一条直连链路发送直连链路流量指示消息,该直连链路流量指示信息包括第一直连链路集合中的每条直连链路的标识和第一直连链路集合中的每条直连链路在多链路设备2中对应的站点传输的业务流状态。多链路设备3接收直连链路流量指示消息,从该直连链路流量指示信息中提取每条直连链路在多链路设备2中对应的站点传输的业务流状态,便可得知第一直连链路集合中的每条直连链路在多链路设备2中对应的站点的业务流状态。
可选的,参见图17所示的直连链路流量指示消息的结构,直连链路流量指示消息包括Category字段和第一链路集合中的每条直连链路对应的Link Information字段。对于第一链路集合中的每条直连链路,该直连链路对应的Link Information字段分别包括该直连链路的标识和该直连链路在多链路设备2中对应的站点传输的业务流状态。
可选的,仍参数图17,该直连链路对应的Link Information字段包括Link Identify字段、PTI Control字段和TPU Buffer Status字段,Link Identify字段包括该直连链路的标识,TPU Buffer Status字段包括该直连链路在多链路设备2中对应的站点传输的业务流状态。
可选的,多链路设备3也可以向多链路设备2通知第一直连链路集合中的每条直连链路在多链路设备3中对应的站点的业务流状态,实现过程可以参见多链路设备2的实现过程,就不再详细说明。
对于直连链路休眠请求消息,多链路设备2使用直连链路休眠请求信息,向多链路设备3通知第二直连链路集合中的每条直连链路在多链路设备2中对应的站点的休眠信息,第二直连链路集合包括至少一条直连链路或至少一条直连链路中的部分直连链路。在实现时:
多链路设备2通过一条直连链路发送直连链路休眠请求消息,该直连链路休眠请求消息包括第二直连链路集合中的每条直连链路的标识和第二直连链路集合中的每条直连链路在多链路设备2中对应的站点的休眠信息。多链路设备3接收该直连链路休眠请求消息,根据第二直连链路集合中的每条直连链路的标识和第二直连链路集合中的每条直连链路在多链路设备2中对应的站点的休眠信息,确定第二直连链路集合中的每条直连链路在多链路设备2中对应的站点的休眠时间,如此在每条直连链路在多链路设备2中对应的站点的休眠时间,分别停止在每条直连链路上传输数据。
可选的,参见图18所示的直连链路休眠消息的结构,直连链路休眠消息包括Category字段和第二链路集合中的每条直连链路对应的Link Information字段。对于第二链路集合中的 每条直连链路,该直连链路对应的Link Information字段分别包括该直连链路的标识和该直连链路在多链路设备2中对应的站点的休眠信息。
可选的,仍参数图18,该直连链路对应的Link Information字段包括Link Identify字段和休眠时间(Wake up Schdule)字段,Link Identify字段包括该直连链路的标识,Wake up Schdule字段包括该直连链路在多链路设备2中对应的站点的休眠时间。
可选的,多链路设备3也可以向多链路设备2通知第二直连链路集合中的每条直连链路在多链路设备3中对应的站点的休眠信息,实现过程可以参见多链路设备2的实现过程,就不再详细说明。
对于直连链路信道切换请求消息,多链路设备2使用直连链路信道切换请求求信息,切换第三直连链路集合中的每条直连链路当前占用的信道,第三直连链路集合包括至少一条直连链路或至少一条直连链路中的部分直连链路。在实现时:
多链路设备3确定第三直连链路集合中的每条直连链路切换后的目标信道,使用一条直连链路发送直连链路信道切换请求消息,该直连链路信道切换请求消息包括第三直连链路集合中的每条直连链路的标识和第三直连链路集合中的每条直连链路对应的目标信道的标识。多链路设备3接收直连链路信道切换请求消息,将第三直连链路集合中的每条直连链路所占用的信道分别切换为第三直连链路集合中的每条直连链路对应的目标信道。
可选的,参见图19所示的直连链路切换请求消息的结构,直连链路信道切换请求消息包括Category字段和第三链路集合中的每条直连链路对应的Link Information字段。对于第三链路集合中的每条直连链路,该直连链路对应的Link Information字段分别包括该直连链路的标识和该直连链路对应的目标信道的标识。
可选的,仍参数图19,该直连链路对应的Link Information字段包括Link Identify字段和休眠时间(Channel Switch Timing)字段,Link Identify字段包括该直连链路的标识,Channel Switch Timing字段包括该直连链路对应的目标信道的标识。
可选的,多链路设备3也可以切换第三直连链路集合中的每条直连链路当前占用的信道,实现过程可以参见多链路设备2的实现过程,就不再详细说明。
在本申请实施例中,多链路设备2发送的直连链路配置请求消息包括属于该多链路设备2的多个站点的参数和多链路设备3的地址。多链路设备3接收该直连链路配置请求消息,向多链路设备2发送直连链路配置响应消息,以实现在多链路设备2和多链路设备3之间建立至少一条直连链路。这样,多链路设备2和多链路设备3之间使用该至少一条直连链路来传输数据,从而提高了传输数据的可靠性和吞吐量。
参见图20,本申请实施例提供了一种在无线局域网中建立直连链路的装置200,所述装置200可以部署在上述图1或图6所示实施例提供的多链路设备2,包括:
处理单元201,用于根据属于所述装置200的多个站点的参数和第二多链路设备的设备信息,建立所述装置200和第二多链路设备之间的至少一条直连链路,至少一条直连链路中的每条直连链路连接属于所述装置200的多个站点中的一个站点和属于第二多链路设备的一个站点。
可选的,属于所述装置200的该多个站点的参数包括该多个站点中每个站点的标识和能力信息。
可选的,该至少一条直连链路中的每条直连链路两端站点的能力相对应。
可选的,所述装置200还包括:
第一发送单元202,用于发送直连链路发现请求消息,所述直连链路发现请求消息包括属于所述装置的多个站点的参数和所述第二多链路设备的地址;
第一接收单元203,用于接收第二多链路设备发送的直连链路发现响应消息。
可选的,第一发送单元202发送直连链路发现请求消息的详细实现过程,可以参见图6所示的实施例中的步骤11中的相关内容,以及第一接收单元203接收直连链路发现响应消息的详细实现过程,可以参见图6所示的实施例中的步骤15中的相关内容。
可选的,所述装置200还包括:
第二发送单元204,用于发送直连链路配置请求消息,该直连链路配置请求消息包括属于所述装置200的多个站点的参数和第二多链路设备的地址;
第二接收单元205,用于接收直连链路配置响应消息,该直连链路配置响应消息包括同意建立直连链路指示和至少一条直连链路中的每条直连链路两端站点的对应关系。
可选的,第二发送单元204发送直连链路配置请求消息的详细实现过程,可以参见图6所示的实施例中的步骤101中的相关内容,以及第二接收单元205接收直连链路配置响应消息的详细实现过程,可以参见图6所示的实施例中的步骤105中的相关内容。
可选的,直连链路配置响应消息还包括第二多链路设备的站点的参数。
可选的,所述装置200还包括:
第三发送单元206,用于发送直连链路配置请求消息,该直连链路配置请求消息包括属于所述装置200的多个站点的参数和第二多链路设备的地址;
第三接收单元207,用于接收直连链路配置响应消息,该直连链路配置响应消息包括同意建立直连链路指示和第二多链路设备的站点的参数;
第三发送单元206,还用于发送直连链路确认消息,该直连链路确认消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系。
可选的,所述装置200还包括:
第四发送单元208,用于发送直连链路发现请求消息,该直连链路发现请求消息包括属于所述装置200的多个站点的参数和第二多链路设备的地址;
第四接收单元209,用于接收第二多链路设备发送的直连链路发现响应消息,该直连链路发现响应消息包括第二多链路设备的站点的参数。
可选的,第四发送单元208,还用于发送直连链路配置请求消息,该直连链路配置请求消息包括该至少一条直连链路中的每条直连链路两端站点的对应关系和所述第二多链路设备的地址;
第四接收单元209,还用于接收直连链路配置响应消息,该直连链路配置响应消息包括同意建立直连链路指示。
可选的,第四发送单元208发送直连链路配置请求消息的详细实现过程,可以参见图6所示的实施例中的步骤101中的相关内容,以及第四接收单元209接收直连链路配置响应消息的详细实现过程,可以参见图6所示的实施例中的步骤105中的相关内容。
可选的,处理单元201,还用于:
根据所述装置200的多个站点的参数和第二多链路设备的站点的参数,确定至少一条直 连链路中的每条直连链路两端站点的对应关系。
可选的,所述装置200还包括:
第五发送单元210,用于发送直连链路释放请求消息,该直连链路释放请求消息包括链路标识集合,该链路标识集合包括该至少一条直连链路中的全部或部分直连链路的标识,该直连链路释放请求消息指示第二多链路设备释放该链路标识集合中的每条直连链路的标识对应的直连链路。
可选的,所述装置200还包括:
第六发送单元211,用于发送直连链路流量指示消息,该直连链路流量指示信息包括第一直连链路集合中的每条直连链路的标识和第一直连链路集合中的每条直连链路在所述装置200中对应的站点传输的业务流状态,第一直连链路集合包括该至少一条直连链路或该至少一条直连链路中的部分直连链路。
可选的,所述装置200还包括:
第七发送单元212,用于发送直连链路休眠请求消息,该直连链路休眠请求消息包括第二直连链路集合中的每条直连链路的标识和第二直连链路集合中的每条直连链路在所述装置200中对应的站点的休眠信息,第二直连链路集合包括该至少一条直连链路或该至少一条直连链路中的部分直连链路。
可选的,所述装置200还包括:
第八发送单元213,用于发送直连链路信道切换请求消息,该直连链路信道切换请求消息包括第三直连链路集合中的每条直连链路的标识和第三直连链路集合中的每条直连链路对应的目标信道的标识,该直连链路信道切换请求消息指示第二多链路设备将第三直连链路集合中的每条直连链路所占用的信道分别切换为第三直连链路集合中的每条直连链路对应的目标信道,第三直连链路集合包括至少一条直连链路或至少一条直连链路中的部分直连链路。
在本申请实施例中,由于发送的直连链路配置请求消息包括所述装置中的多个站点的参数,使得处理单元建立所述装置和第二多链路设备之间的至少一条直连链路,该至少一条直连链路中的每条直连链路连接属于所述装置的多个站点中的一个站点和属于第二多链路设备的一个站点。如此实现在两个多链路设备之间建立至少一条直连链路,两个多链路设备之间可使用该至少一条直连链路中的每条直连链路传输数据,从而提高数据传输的可靠性和吞吐量。
参见图21,本申请实施例提供了一种在无线局域网中建立直连链路的装置300,所述装置300可以部署在图1或图6所示实施例中的多链路设备3中,包括:
接收单元301,用于接收来自第二多链路设备的直连链路配置请求消息,该直连链路配置请求消息包括属于第二多链路设备的多个站点的参数,所述装置300包括一个站点;
处理单元302,用于根据该多个站点的参数和该一个站点的参数,从该多个站点中选择一个站点;
发送单元303,用于向第二多链路设备发送直连链路配置响应消息,该直连链路配置响应消息包括待建立的一条直连链路两端的站点的对应关系,该对应关系为该一个站点和选择的站点的对应关系。
可选的,处理单元302选择站点的详细实现过程,可以参见图6所示的实施例中的步骤 103中的相关内容。
可选的,处理单元302,用于根据该多个站点的参数和该一个站点的参数,从该多个站点中选择能力与该一个站点的能力相对应的一个站点。
在本申请实施例中,接收单元接收来自第二多链路设备的直连链路配置请求消息,直连链路配置请求消息包括属于第二多链路设备的多个站点的参数,所述装置包括一个站点。处理单元根据该多个站点的参数和该一个站点的参数,从该多个站点中选择一个站点。发送单元向第二多链路设备发送直连链路配置响应消息,该直连链路配置响应消息包括待建立的一条直连链路两端的站点的对应关系,该对应关系为该一个站点和选择的站点的对应关系。由于处理单元根据该多个站点的参数和该一个站点的参数从该多个站点中选择一个站点,从而使得包括一个站点的所述装置也可以与包括多个站点的第二多链路设备之间建立直连链路。
参见图22,本申请实施例提供了一种无线局域网WLAN帧发送的装置400,所述装置400可以部署在图1或图6所示实施例中的多链路设备1中,包括:
接收单元401,用于用第一接入点AP接收第二多链路设备发送的第一WLAN帧,第一AP属于所述装置400,第一WLAN帧的发送方地址为第二多链路设备的地址,第一WLAN帧的目的地址为站点的地址,第一WLAN帧的接收方地址为第一AP的地址,该站点属于第三多链路设备,该站点不关联第一AP,所述装置400为接入点多链路设备,第二多链路设备和第三多链路设备为非接入点多链路设备;
发送单元402,用于用第二AP发送的第二WLAN帧,第二AP属于第三多链路设备,第二WLAN帧的净荷和第一WLAN帧的净荷相同,该站点关联第二AP,第二WLAN帧的发送方地址为第二AP的地址,第二WLAN帧的接收方地址为该站点的地址,第二WLAN帧的源地址为第二多链路设备的地址。
可选的,所述装置400还包括处理单元403,处理单元403用于确定与该站点关联的第二AP。
可选的,第一WLAN帧为用于建立所述第二多链路设备和所述第三多链路设备之间的至少一条直连链路的直连链路配置请求消息、直连链路配置响应消息、直连链路确认消息、直连链路发现请求消息或直连链路发现响应消息。
在本申请实施例中,由于用于接收第一WLAN帧的第一AP和与目的地址对应的站点关联的第二AP不同,处理单元可以确定与该站点关联的第二AP,发送单元用第二AP向发送第二WLAN,又由于第二WLAN帧的净荷和第一WLAN帧的净荷相同,从而能够将第一WLAN帧的净荷部分的内容发送给第二多链路设备。
参见图23,本申请实施例提供了一种在无线局域网中建立直连链路的装置500示意图。该装置500可以是上述任一实施例中的多链路设备2。该装置500包括至少一个处理器501,内部连接502,存储器503以及至少一个收发器504。
该装置500是一种硬件结构的装置,可以用于实现图20所述的装置200中的功能模块。例如,本领域技术人员可以想到图20所示的装置200中的处理单元201可以通过该至少一个处理器501调用存储器503中的代码来实现,图20所示的装置200中的第一发送单元202、第一接收单元203、第二发送单元204、第二接收单元205、第三发送单元906、第三接收单 元207、第四发送单元208、第四接收单元209、第五发送单元210、第六发送单元211、第七发送单元212和第八发送单元213通过该收发器504来实现。
可选的,该装置500还可用于实现上述任一实施例中多链路设备2的功能。
可选的,上述处理器501可以是一个通用中央处理器(central processing unit,CPU),网络处理器(network processor,NP),微处理器,特定应用集成电路(application-specific integrated circuit,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。
上述内部连接502可包括一通路,在上述组件之间传送信息。可选的,内部连接502为单板或总线等。
上述收发器504,用于与其他设备或通信网络通信。
上述存储器503可以是只读存储器(read-only memory,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,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compact disc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器可以是独立存在,通过总线与处理器相连接。存储器也可以和处理器集成在一起。
其中,存储器503用于存储执行本申请方案的应用程序代码,并由处理器501来控制执行。处理器501用于执行存储器503中存储的应用程序代码,以及配合至少一个收发器504,从而使得该装置500实现本专利方法中的功能。
在具体实现中,作为一种实施例,处理器501可以包括一个或多个CPU,例如图23中的CPU0和CPU1。
在具体实现中,作为一种实施例,该装置500可以包括多个处理器,例如图23中的处理器501和处理器507。这些处理器中的每一个可以是一个单核(single-CPU)处理器,也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
参见图24,本申请实施例提供了一种在无线局域网中建立直连链路的装置600示意图。该装置600可以是上述任一实施例中的多链路设备3。该装置600包括至少一个处理器601,内部连接602,存储器603以及至少一个收发器604。
该装置600是一种硬件结构的装置,可以用于实现图21所述的装置300中的功能模块。例如,本领域技术人员可以想到图21所示的装置300中的处理单元302可以通过该至少一个处理器601调用存储器603中的代码来实现,图21所示的装置300中的接收单元301和发送单元303可以通过该收发器604来实现。
可选的,该装置600还可用于实现上述任一实施例中多链路设备3的功能。
可选的,上述处理器601可以是一个通用中央处理器(central processing unit,CPU),网络处理器(network processor,NP),微处理器,特定应用集成电路(application-specific integrated circuit,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。
上述内部连接602可包括一通路,在上述组件之间传送信息。可选的,内部连接602为 单板或总线等。
上述收发器604,用于与其他设备或通信网络通信。
上述存储器603可以是只读存储器(read-only memory,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,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compact disc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器可以是独立存在,通过总线与处理器相连接。存储器也可以和处理器集成在一起。
其中,存储器603用于存储执行本申请方案的应用程序代码,并由处理器601来控制执行。处理器601用于执行存储器603中存储的应用程序代码,以及配合至少一个收发器604,从而使得该装置600实现本专利方法中的功能。
在具体实现中,作为一种实施例,处理器601可以包括一个或多个CPU,例如图24中的CPU0和CPU1。
在具体实现中,作为一种实施例,该装置600可以包括多个处理器,例如图24中的处理器601和处理器607。这些处理器中的每一个可以是一个单核(single-CPU)处理器,也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
参见图25,本申请实施例提供了一种无线局域网WLAN帧发送的装置700示意图。该装置700可以是上述任一实施例中的多链路设备1。该装置700包括至少一个处理器701,内部连接702,存储器703以及至少一个收发器704。
该装置700是一种硬件结构的装置,可以用于实现图22所述的装置400中的功能模块。例如,本领域技术人员可以想到图22所示的装置400中的处理单元403可以通过该至少一个处理器701调用存储器703中的代码来实现,图22所示的装置400中的接收单元401和发送单元402可以通过该收发器704来实现。
可选的,该装置700还可用于实现上述任一实施例中多链路设备1的功能。
可选的,上述处理器701可以是一个通用中央处理器(central processing unit,CPU),网络处理器(network processor,NP),微处理器,特定应用集成电路(application-specific integrated circuit,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。
上述内部连接702可包括一通路,在上述组件之间传送信息。可选的,内部连接702为单板或总线等。
上述收发器704,用于与其他设备或通信网络通信。
上述存储器703可以是只读存储器(read-only memory,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,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compact disc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝 光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器可以是独立存在,通过总线与处理器相连接。存储器也可以和处理器集成在一起。
其中,存储器703用于存储执行本申请方案的应用程序代码,并由处理器701来控制执行。处理器701用于执行存储器703中存储的应用程序代码,以及配合至少一个收发器704,从而使得该装置700实现本专利方法中的功能。
在具体实现中,作为一种实施例,处理器701可以包括一个或多个CPU,例如图25中的CPU0和CPU1。
在具体实现中,作为一种实施例,该装置700可以包括多个处理器,例如图25中的处理器701和处理器707。这些处理器中的每一个可以是一个单核(single-CPU)处理器,也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
参见图1,本申请实施例一种在无线局域网中建立直连链路的系统,所述系统包括:如图19所述的装置200、如图20所述的装置300和如图21所述的装置400;或者,所述系统包括:如图22所述的装置500、如图23所述的装置600和如图24所述的装置700。
如图19所述的装置200或如图22所述的装置500可以为多链路设备2,如图20所述的装置300或如图23所述的装置600可以为多链路设备3,如图21所述的装置400或如图24所述的装置700可以为多链路设备1。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。

Claims (39)

  1. 一种在无线局域网中建立直连链路的方法,其特征在于,所述方法包括:
    第一多链路设备根据属于所述第一多链路设备的多个站点的参数和第二多链路设备的设备信息,建立所述第一多链路设备和所述第二多链路设备之间的至少一条直连链路,所述至少一条直连链路中的每条直连链路连接属于所述第一多链路设备的多个站点中的一个站点和属于所述第二多链路设备的一个站点。
  2. 如权利要求1所述的方法,其特征在于,属于所述第一多链路设备的所述多个站点的参数包括所述多个站点中每个站点的标识和能力信息。
  3. 如权利要求1或2所述的方法,其特征在于,所述至少一条直连链路中的每条直连链路两端站点的能力相对应。
  4. 如权利要求1至3任一项所述的方法,其特征在于,所述方法还包括:
    所述第一多链路设备发送直连链路发现请求消息,所述直连链路发现请求消息包括属于所述第一多链路设备的多个站点的参数和所述第二多链路设备的地址;
    所述第一多链路设备接收所述第二多链路设备发送的直连链路发现响应消息。
  5. 如权利要求1至4任一项所述的方法,其特征在于,所述第一多链路设备根据属于所述第一多链路设备的多个站点的参数和第二多链路设备的设备信息,建立所述第一多链路设备和所述第二多链路设备之间的至少一条直连链路,包括:
    所述第一多链路设备发送直连链路配置请求消息,所述直连链路配置请求消息包括属于所述第一多链路设备的多个站点的参数和所述第二多链路设备的地址;
    所述第一多链路设备接收直连链路配置响应消息,所述直连链路配置响应消息包括同意建立直连链路指示和所述至少一条直连链路中的每条直连链路两端站点的对应关系。
  6. 如权利要求5所述的方法,其特征在于,所述直连链路配置响应消息还包括所述第二多链路设备的站点的参数。
  7. 如权利要求1至4任一项所述的方法,其特征在于,所述第一多链路设备根据属于所述第一多链路设备的多个站点的参数和第二多链路设备的设备信息,建立所述第一多链路设备和所述第二多链路设备之间的至少一条直连链路,包括:
    所述第一多链路设备发送直连链路配置请求消息,所述直连链路配置请求消息包括属于所述第一多链路设备的多个站点的参数和所述第二多链路设备的地址;
    所述第一多链路设备接收直连链路配置响应消息,所述直连链路配置响应消息包括同意建立直连链路指示和所述第二多链路设备的站点的参数;
    所述第一多链路设备发送直连链路确认消息,所述直连链路确认消息包括所述至少一条直连链路中的每条直连链路两端站点的对应关系。
  8. 如权利要求1至3任一项所述的方法,其特征在于,所述方法还包括:
    所述第一多链路设备发送直连链路发现请求消息,所述直连链路发现请求消息包括属于所述第一多链路设备的多个站点的参数和所述第二多链路设备的地址;
    所述第一多链路设备接收所述第二多链路设备发送的直连链路发现响应消息,所述直连链路发现响应消息包括所述第二多链路设备的站点的参数。
  9. 如权利要求8所述的方法,其特征在于,所述第一多链路设备根据属于所述第一多链路设备的多个站点的参数和第二多链路设备的设备信息,建立所述第一多链路设备和所述第二多链路设备之间的至少一条直连链路,包括:
    所述第一多链路设备发送直连链路配置请求消息,所述直连链路配置请求消息包括所述至少一条直连链路中的每条直连链路两端站点的对应关系和所述第二多链路设备的地址;
    所述第一多链路设备接收直连链路配置响应消息,所述直连链路配置响应消息包括同意建立直连链路指示。
  10. 如权利要求9所述的方法,其特征在于,所述方法还包括:
    所述第一多链路设备根据所述第一多链路设备的多个站点的参数和所述第二多链路设备的站点的参数,确定所述至少一条直连链路中的每条直连链路两端站点的对应关系。
  11. 如权利要求1至10任一项所述的方法,其特征在于,所述方法还包括:
    所述第一多链路设备发送直连链路释放请求消息,所述直连链路释放请求消息包括链路标识集合,所述链路标识集合包括所述至少一条直连链路中的全部或部分直连链路的标识,所述直连链路释放请求消息指示所述第二多链路设备释放所述链路标识集合中的每条直连链路的标识对应的直连链路。
  12. 如权利要求1至11任一项所述的方法,其特征在于,所述方法还包括:
    所述第一多链路设备发送直连链路流量指示消息,所述直连链路流量指示信息包括第一直连链路集合中的每条直连链路的标识和所述第一直连链路集合中的每条直连链路在所述第一多链路设备中对应的站点传输的业务流状态,所述第一直连链路集合包括所述至少一条直连链路或所述至少一条直连链路中的部分直连链路。
  13. 如权利要求1至12任一项所述的方法,其特征在于,所述方法还包括:
    所述第一多链路设备发送直连链路休眠请求消息,所述直连链路休眠请求消息包括第二直连链路集合中的每条直连链路的标识和所述第二直连链路集合中的每条直连链路在所述第一多链路设备中对应的站点的休眠信息,所述第二直连链路集合包括所述至少一条直连链路或所述至少一条直连链路中的部分直连链路。
  14. 如权利要求1至13任一项所述的方法,其特征在于,所述方法还包括:
    所述第一多链路设备发送直连链路信道切换请求消息,所述直连链路信道切换请求消息 包括第三直连链路集合中的每条直连链路的标识和所述第三直连链路集合中的每条直连链路对应的目标信道的标识,所述直连链路信道切换请求消息指示所述第二多链路设备将所述第三直连链路集合中的每条直连链路所占用的信道分别切换为所述第三直连链路集合中的每条直连链路对应的目标信道,所述第三直连链路集合包括所述至少一条直连链路或所述至少一条直连链路中的部分直连链路。
  15. 一种在无线局域网中建立直连链路的方法,其特征在于,所述方法包括:
    第一多链路设备接收来自第二多链路设备的直连链路配置请求消息,所述直连链路配置请求消息包括属于所述第二多链路设备的多个站点的参数,所述第一多链路设备包括一个站点;
    所述第一多链路设备根据所述多个站点的参数和所述一个站点的参数,从所述多个站点中选择一个站点;
    所述第一多链路设备向所述第二多链路设备发送直连链路配置响应消息,所述直连链路配置响应消息包括待建立的一条直连链路两端的站点的对应关系,所述对应关系为所述一个站点和所述选择的站点的对应关系。
  16. 如权利要求15所述的方法,其特征在于,所述第二多链路设备根据所述多个站点的参数和所述一个站点的参数,从所述多个站点中选择一个站点,包括:
    所述第一多链路设备根据所述多个站点的参数和所述一个站点的参数,从所述多个站点中选择能力与所述一个站点的能力相对应的一个站点。
  17. 一种无线局域网(WLAN)帧发送的方法,其特征在于,所述方法包括:
    第一多链路设备用第一接入点(AP)接收第二多链路设备发送的第一WLAN帧,所述第一AP属于所述第一多链路设备,所述第一WLAN帧的发送方地址为所述第二多链路设备的地址,所述第一WLAN帧的目的地址为站点的地址,所述第一WLAN帧的接收方地址为所述第一AP的地址,所述站点属于第三多链路设备,所述站点不关联所述第一AP,所述第一多链路设备为接入点多链路设备,所述第二多链路设备和所述第三多链路设备为非接入点多链路设备;
    所述第一多链路设备用第二AP发送的第二WLAN帧,所述第二AP属于所述第三多链路设备,所述第二WLAN帧的净荷和所述第一WLAN帧的净荷相同,所述站点关联所述第二AP,所述第二WLAN帧的发送方地址为所述第二AP的地址,所述第二WLAN帧的接收方地址为所述站点的地址,所述第二WLAN帧的源地址为所述第二多链路设备的地址。
  18. 如权利要求17所述的方法,其特征在于,所述第一WLAN帧为用于建立所述第二多链路设备和所述第三多链路设备之间的至少一条直连链路的直连链路配置请求消息、直连链路配置响应消息、直连链路确认消息、直连链路发现请求消息或直连链路发现响应消息。
  19. 一种在无线局域网中建立直连链路的装置,其特征在于,所述装置包括:
    处理单元,用于根据属于所述装置的多个站点的参数和第二多链路设备的设备信息,建 立所述装置和所述第二多链路设备之间的至少一条直连链路,所述至少一条直连链路中的每条直连链路连接属于所述装置的多个站点中的一个站点和属于所述第二多链路设备的一个站点。
  20. 如权利要求19所述的装置,其特征在于,属于所述装置的所述多个站点的参数包括所述多个站点中每个站点的标识和能力信息。
  21. 如权利要求19或20所述的装置,其特征在于,所述至少一条直连链路中的每条直连链路两端站点的能力相对应。
  22. 如权利要求19至21任一项所述的装置,其特征在于,所述装置还包括:
    第一发送单元,用于发送直连链路发现请求消息,所述直连链路发现请求消息包括属于所述装置的多个站点的参数和所述第二多链路设备的地址;
    第一接收单元,用于接收所述第二多链路设备发送的直连链路发现响应消息。
  23. 如权利要求19至22任一项所述的装置,其特征在于,所述装置还包括:
    所述第二发送单元,用于发送直连链路配置请求消息,所述直连链路配置请求消息包括属于所述装置的多个站点的参数和所述第二多链路设备的地址;
    所述第二接收单元,用于接收直连链路配置响应消息,所述直连链路配置响应消息包括同意建立直连链路指示和所述至少一条直连链路中的每条直连链路两端站点的对应关系。
  24. 如权利要求23所述的装置,其特征在于,所述直连链路配置响应消息还包括所述第二多链路设备的站点的参数。
  25. 如权利要求19至22任一项所述的装置,其特征在于,所述装置还包括:
    第三发送单元,用于发送直连链路配置请求消息,所述直连链路配置请求消息包括属于所述装置的多个站点的参数和所述第二多链路设备的地址;
    第三接收单元,用于接收直连链路配置响应消息,所述直连链路配置响应消息包括同意建立直连链路指示和所述第二多链路设备的站点的参数;
    所述第三发送单元,还用于发送直连链路确认消息,所述直连链路确认消息包括所述至少一条直连链路中的每条直连链路两端站点的对应关系。
  26. 如权利要求19至21任一项所述的装置,其特征在于,所述装置还包括:
    第四发送单元,用于发送直连链路发现请求消息,所述直连链路发现请求消息包括属于所述装置的多个站点的参数和所述第二多链路设备的地址;
    第四接收单元,用于接收所述第二多链路设备发送的直连链路发现响应消息,所述直连链路发现响应消息包括所述第二多链路设备的站点的参数。
  27. 如权利要求26所述的装置,其特征在于,所述第四发送单元,还用于发送直连链路 配置请求消息,所述直连链路配置请求消息包括所述至少一条直连链路中的每条直连链路两端站点的对应关系和所述第二多链路设备的地址;
    所述第四接收单元,还用于接收直连链路配置响应消息,所述直连链路配置响应消息包括同意建立直连链路指示。
  28. 如权利要求27所述的装置,其特征在于,所述处理单元,还用于:
    根据所述装置的多个站点的参数和所述第二多链路设备的站点的参数,确定所述至少一条直连链路中的每条直连链路两端站点的对应关系。
  29. 如权利要求19至28任一项所述的装置,其特征在于,所述装置还包括:
    第五发送单元,用于发送直连链路释放请求消息,所述直连链路释放请求消息包括链路标识集合,所述链路标识集合包括所述至少一条直连链路中的全部或部分直连链路的标识,所述直连链路释放请求消息指示所述第二多链路设备释放所述链路标识集合中的每条直连链路的标识对应的直连链路。
  30. 如权利要求19至29任一项所述的装置,其特征在于,所述装置还包括:
    第六发送单元,用于发送直连链路流量指示消息,所述直连链路流量指示信息包括第一直连链路集合中的每条直连链路的标识和所述第一直连链路集合中的每条直连链路在所述装置中对应的站点传输的业务流状态,所述第一直连链路集合包括所述至少一条直连链路或所述至少一条直连链路中的部分直连链路。
  31. 如权利要求19至30任一项所述的装置,其特征在于,所述装置还包括:
    第七发送单元,用于发送直连链路休眠请求消息,所述直连链路休眠请求消息包括第二直连链路集合中的每条直连链路的标识和所述第二直连链路集合中的每条直连链路在所述装置中对应的站点的休眠信息,所述第二直连链路集合包括所述至少一条直连链路或所述至少一条直连链路中的部分直连链路。
  32. 如权利要求19至31任一项所述的装置,其特征在于,所述装置还包括:
    第八发送单元,用于发送直连链路信道切换请求消息,所述直连链路信道切换请求消息包括第三直连链路集合中的每条直连链路的标识和所述第三直连链路集合中的每条直连链路对应的目标信道的标识,所述直连链路信道切换请求消息指示所述第二多链路设备将所述第三直连链路集合中的每条直连链路所占用的信道分别切换为所述第三直连链路集合中的每条直连链路对应的目标信道,所述第三直连链路集合包括所述至少一条直连链路或所述至少一条直连链路中的部分直连链路。
  33. 一种在无线局域网中建立直连链路的装置,其特征在于,所述装置包括:
    接收单元,用于接收来自第二多链路设备的直连链路配置请求消息,所述直连链路配置请求消息包括属于所述第二多链路设备的多个站点的参数,所述装置包括一个站点;
    处理单元,用于根据所述多个站点的参数和所述一个站点的参数,从所述多个站点中选 择一个站点;
    发送单元,用于向所述第二多链路设备发送直连链路配置响应消息,所述直连链路配置响应消息包括待建立的一条直连链路两端的站点的对应关系,所述对应关系为所述一个站点和所述选择的站点的对应关系。
  34. 如权利要求33所述的装置,其特征在于,所述处理单元,用于根据所述多个站点的参数和所述一个站点的参数,从所述多个站点中选择能力与所述一个站点的能力相对应的一个站点。
  35. 一种无线局域网(WLAN)帧发送的装置,其特征在于,所述装置包括:
    接收单元,用于用第一接入点(AP)接收第二多链路设备发送的第一WLAN帧,所述第一AP属于所述装置,所述第一WLAN帧的发送方地址为所述第二多链路设备的地址,所述第一WLAN帧的目的地址为站点的地址,所述第一WLAN帧的接收方地址为所述第一AP的地址,所述站点属于第三多链路设备,所述站点不关联所述第一AP,所述装置为接入点多链路设备,所述第二多链路设备和所述第三多链路设备为非接入点多链路设备;
    发送单元,用于用第二AP发送的第二WLAN帧,所述第二AP属于所述第三多链路设备,所述第二WLAN帧的净荷和所述第一WLAN帧的净荷相同,所述站点关联所述第二AP,所述第二WLAN帧的发送方地址为所述第二AP的地址,所述第二WLAN帧的接收方地址为所述站点的地址,所述第二WLAN帧的源地址为所述第二多链路设备的地址。
  36. 如权利要求35所述的装置,其特征在于,所述第一WLAN帧为用于建立所述第二多链路设备和所述第三多链路设备之间的至少一条直连链路的直连链路配置请求消息、直连链路配置响应消息、直连链路确认消息、直连链路发现请求消息或直连链路发现响应消息。
  37. 一种在无线局域网中建立直连链路的系统,其特征在于,所述系统包括:
    如权利要求19至32任一项所述的装置、如权利要求33或34所述的装置和如权利要求35或36所述的装置。
  38. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储程序,当执行所述程序时,使得计算机执行权利要求1至18任一项所述的方法。
  39. 一种计算机程序产品,其特征在于,所述计算机程序产品包括在计算机可读存储介质中存储的计算机程序,并且所述计算程序通过处理器进行加载来实现如权利要求1-18任一项所述的方法。
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