WO2023284836A1 - 元素继承方法及装置 - Google Patents

元素继承方法及装置 Download PDF

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Publication number
WO2023284836A1
WO2023284836A1 PCT/CN2022/105783 CN2022105783W WO2023284836A1 WO 2023284836 A1 WO2023284836 A1 WO 2023284836A1 CN 2022105783 W CN2022105783 W CN 2022105783W WO 2023284836 A1 WO2023284836 A1 WO 2023284836A1
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WIPO (PCT)
Prior art keywords
bssid
access point
profile sub
per
transmission
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PCT/CN2022/105783
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English (en)
French (fr)
Inventor
李伊青
淦明
李云波
郭宇宸
黄国刚
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP22841469.4A priority Critical patent/EP4362372A1/en
Publication of WO2023284836A1 publication Critical patent/WO2023284836A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present application relates to the field of communication technologies, and in particular to an element inheritance method and device.
  • the same set of multiple basic service set identifiers includes a transmission BSSID and a non-transmission BSSID.
  • the reporting access point (access point, AP) corresponding to the transmission BSSID can send the element (element) corresponding to the transmission BSSID through a management frame.
  • the management frame may also carry the elements of the reported AP, and the reported AP may include the AP corresponding to the non-transmitting BSSID, and may also include that the AP corresponding to the non-transmitting BSSID belongs to the same AP multi-link device (multi-link device, MLD) other APs.
  • MLD multi-link device
  • the elements carried by the management frame with identifiers (identifier, ID) equal to A, B, C, D, and E are elements corresponding to the transmission BSSID.
  • the multiple BSSID element (Multiple BSSID element) of the management frame may include a non-transmitted BSSID profile (Nontransmitted BSSID Profile) sub-element, corresponding to the AP corresponding to the non-transmitted BSSID profile; the basic variant multi-link element of the non-transmitted BSSID profile sub-element (Basic variant Multi-Link element) may include a per-site profile (Per-STA Profile) sub-element, corresponding to other APs that the AP corresponding to the non-transmission BSSID belongs to the same AP MLD.
  • Per-STA Profile per-site profile
  • the non-transmission BSSID can inherit elements from the transmission BSSID, and the AP corresponding to each site profile sub-element can inherit elements from the non-transmission BSSID.
  • the non-transmit BSSID inherits an element from the transmit BSSID, the element may not appear in the non-transmit BSSID profile child element, and the identity of the element is not listed in the non-inheritance element (Non-Inheritance) of the non-transmit BSSID profile child element out; when a non-transmitting BSSID does not inherit an element from a transmitting BSSID, the element's identity is listed in the non-inheritance (Non-Inheritance) element of the non-transmitting BSSID profile child element, for example, a non-transmitting BSSID does not inherit element A, The identity of element A is then listed in the non-inherited element of the non-transport BSSID profile child element.
  • the embodiment of the present application provides an element inheritance method and device, which are used to solve the problem of setting an element whose non-transmission BSSID is not inherited from the transmission BSSID in the per-site profile sub-element, which can save signaling overhead or explicitly indicate the per-site profile sub-element
  • the AP corresponding to the element does not inherit the element.
  • an element inheritance method includes: generating and sending a management frame by a first access point.
  • the management frame includes a multi-BSSID element and elements corresponding to the transport BSSID, the multi-BSSID element includes a non-transmit BSSID profile sub-element, the non-transmit BSSID profile sub-element includes a basic variant multi-link element, and the basic variant multi-link element includes a A profile sub-element, each site profile sub-element corresponds to the second access point.
  • the non-inherited element of the non-transmission BSSID outline sub-element lists the identifier of the first element: when the second access point does not inherit the first element, each station The non-inherited element of the profile sub-element lists the identifier of the first element; when the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element and the per-site profile sub-element do not appear in the per-site profile sub-element The non-inheriting elements do not list the id of the first element.
  • listing the identity of the first element in the non-inherited element of the per-site profile sub-element can directly and explicitly indicate that the per-site profile sub-element
  • the access point corresponding to the element does not inherit the first element, so that the station can quickly learn that the second access point does not provide the first element, reducing the analysis delay of the management frame.
  • the first element when the second access point provides the first element, and the value of the first element is the same as the value of the first element corresponding to the transmission BSSID, the first element may not appear in the per-site profile sub-element and the per-site profile sub-element
  • the identifier of the first element is not listed in the non-inherited element of the element to indicate that the second access point inherits the first element from the element corresponding to the transmitting BSSID, compared to the second access point can only inherit the element from the non-transmitting BSSID
  • the first element may not appear in the sub-element of each site profile, so that the signaling overhead occupied by the first element can be saved.
  • the element corresponding to the transmitting BSSID includes a second element, the second element appears in the non-transmitting BSSID profile sub-element, and the second element corresponding to the transmitting BSSID and the second element appearing in the non-transmitting BSSID profile sub-element
  • the value of the element is different:
  • the non-transmission BSSID is the BSSID corresponding to the non-transmission BSSID outline sub-element.
  • the second access point can inherit the second element from the non-transmission BSSID, thereby saving the signaling overhead occupied by the second element .
  • a third element appears in a non-transport BSSID profile sub-element:
  • the non-inherited element of the per-site profile sub-element lists the third element ID of ;
  • the non-transmission BSSID is the BSSID corresponding to the non-transmission BSSID outline sub-element.
  • listing the identity of the third element in a non-inherited element of the per-site profile sub-element can directly and explicitly indicate the second The access point does not inherit the third element, so that the station can quickly learn that the second access point does not provide the third element, reducing the analysis delay of the management frame.
  • the third element may not appear in the per-site profile sub-element and the per-site profile sub-element
  • the identifier of the third element is not listed in the non-inherited element of the element, so as to indicate that the second access point inherits the third element from the non-transmission BSSID, thereby saving the signaling overhead occupied by the third element.
  • an element inheritance method includes: a station receives a management frame from a first access point.
  • the management frame includes a multi-BSSID element and elements corresponding to the transport BSSID, the multi-BSSID element includes a non-transmit BSSID profile sub-element, the non-transmit BSSID profile sub-element includes a basic variant multi-link element, and the basic variant multi-link element includes a A profile sub-element, each site profile sub-element corresponds to the second access point.
  • the element corresponding to the transmission BSSID includes the first element
  • the non-inherited element of the non-transmitted BSSID outline sub-element lists the identifier of the first element: when the non-inherited element of each site outline sub-element lists the first element
  • the station determines that the second access point does not inherit the first element; when the first element does not appear in the per-site profile sub-element and the non-inherited element of each site profile sub-element does not list the identity of the first element, the station determines The second access point inherits the first element from the element corresponding to the transport BSSID.
  • the station can quickly determine that the second access point does not provide the first element One element reduces the analysis delay of the management frame.
  • the site can determine that the second access point inherits from the element corresponding to the transmission BSSID For the first element, compared with the solution in which the second access point can only inherit elements from the non-transmitting BSSID, the first element may not appear in the per-site profile sub-element, thereby saving the signaling overhead occupied by the first element.
  • the method further includes: the element corresponding to the transmission BSSID includes a second element, the second element appears in the non-transmission BSSID profile sub-element, and the second element corresponding to the transmission BSSID and the non-transmission BSSID profile sub-element
  • the site determines the second The access point inherits the second element from the non-transmitting BSSID.
  • the non-transmission BSSID is the BSSID corresponding to the non-transmission BSSID outline sub-element.
  • the method further includes: in case a third element appears in the non-transfer BSSID profile sub-element: when the non-inherited element of the per-site profile sub-element lists the identity of the third element, the site determines that the third element The second access point does not inherit the third element; when the third element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the identity of the third element, the site determines the second access point Inherit the third element from the non-transport BSSID.
  • the non-transmission BSSID is the BSSID corresponding to the non-transmission BSSID outline sub-element.
  • the technical effect brought by any possible design of the second aspect can refer to the technical effect brought by the corresponding design in the first aspect above, and will not be repeated here.
  • a first access point in a third aspect, includes: a processing module and a transceiver module.
  • the processing module is used to generate the management frame.
  • the transceiver module is used to send the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes Each site profile sub-element, each site profile sub-element corresponds to the second access point.
  • the element corresponding to the transmit BSSID includes the first element
  • the non-inherited elements of the non-transmit BSSID profile sub-element list the identity of the first element:
  • the non-inherited element of each site profile sub-element lists the identity of the first element
  • the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the identifier of the first element.
  • the first access point provided by the third aspect is used to realize the behavior function of the first access point in the first aspect or any possible design of the first aspect.
  • the description in any possible design of will not be repeated here.
  • a station in a fourth aspect, includes: a processing module and a transceiver module.
  • the transceiver module is configured to receive a management frame from the first access point, the management frame includes a multi-BSSID element and an element corresponding to a transmission BSSID, the multi-BSSID element includes a non-transmission BSSID profile sub-element, and the non-transmission BSSID profile sub-element includes The basic variant multi-link element, the basic variant multi-link element includes a per-site profile sub-element, and each per-site profile sub-element corresponds to the second access point.
  • the processing module is configured to: when the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element:
  • the first element does not appear in the per-site profile sub-element and the non-inherited element of each site-profile sub-element does not list the identifier of the first element, determine that the second access point inherits the first element from the element corresponding to the transmission BSSID.
  • the site provided by the fourth aspect is used to realize the behavior function of the site in the above-mentioned second aspect or any possible design of the second aspect.
  • the above-mentioned second aspect or any possible design of the second aspect description please refer to the above-mentioned second aspect or any possible design of the second aspect description, which will not be repeated here.
  • a first access point includes: a processing circuit and an output interface for internal connection and communication with the processing circuit.
  • the processing circuit is used to generate the management frame; the output interface is used to send the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes Each site profile sub-element, each site profile sub-element corresponds to the second access point.
  • the element corresponding to the transmit BSSID includes the first element
  • the non-inherited elements of the non-transmit BSSID profile sub-element list the identity of the first element:
  • the non-inherited element of each site profile sub-element lists the identity of the first element
  • the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the identifier of the first element.
  • the first access point provided in the fifth aspect is used to realize the behavior function of the first access point in the above first aspect or any possible design of the first aspect.
  • the description in any possible design of will not be repeated here.
  • a station includes: a processing circuit and an input interface for internal connection and communication with the processing circuit.
  • the input interface is used to receive a management frame from the first access point
  • the management frame includes a multi-basic service set identifier BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile includes a basic variant multi-link element
  • the basic variant multi-link element includes a per-site profile sub-element
  • each site-profile sub-element corresponds to the second access point.
  • the processing circuit is configured to: when the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element:
  • the first element does not appear in the per-site profile sub-element and the non-inherited element of each site-profile sub-element does not list the identifier of the first element, determine that the second access point inherits the first element from the element corresponding to the transmission BSSID.
  • the site provided by the sixth aspect is used to realize the behavior function of the site in the above-mentioned second aspect or any possible design of the second aspect.
  • the above-mentioned second aspect or any possible design of the second aspect description please refer to the above-mentioned second aspect or any possible design of the second aspect description, which will not be repeated here.
  • a first access point includes: a processor and a transceiver for internal connection and communication with the processor.
  • the processor is used to generate the management frame; the transceiver is used to send the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes Each site profile sub-element, each site profile sub-element corresponds to the second access point.
  • the element corresponding to the transmit BSSID includes the first element
  • the non-inherited elements of the non-transmit BSSID profile sub-element list the identity of the first element:
  • the non-inherited element of each site profile sub-element lists the identity of the first element
  • the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the identifier of the first element.
  • the first access point provided in the seventh aspect is used to realize the behavior function of the first access point in the above first aspect or any possible design of the first aspect.
  • the description in any possible design of will not be repeated here.
  • a site in an eighth aspect, includes: a processor and a transceiver for communicating with the internal connection of the processor.
  • the transceiver is configured to receive a management frame from the first access point, the management frame includes a multi-basic service set identifier BSSID element and elements corresponding to the transmission BSSID, the multi-BSSID element includes a non-transmission BSSID profile sub-element, and the non-transmission BSSID profile
  • the sub-element includes a basic variant multi-link element, the basic variant multi-link element includes a per-site profile sub-element, and each site-profile sub-element corresponds to the second access point.
  • the processor is configured to: when the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identity of the first element:
  • the first element does not appear in the per-site profile sub-element and the non-inherited element of each site-profile sub-element does not list the identifier of the first element, determine that the second access point inherits the first element from the element corresponding to the transmission BSSID.
  • the site provided by the eighth aspect is used to realize the behavior function of the site in the above-mentioned second aspect or any possible design of the second aspect.
  • the above-mentioned second aspect or any possible design of the second aspect description please refer to the above-mentioned second aspect or any possible design of the second aspect description, which will not be repeated here.
  • an embodiment of the present application provides a computer-readable storage medium for storing a computer program, where the computer program includes instructions for executing the above-mentioned first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium for storing a computer program, where the computer program includes instructions for executing the above-mentioned second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a computer program product, where the computer program product includes instructions for executing the first aspect or any possible implementation manner of the first aspect.
  • an embodiment of the present application provides a computer program product, where the computer program product includes instructions for executing the second aspect or any possible implementation manner of the second aspect.
  • an embodiment of the present application provides a communication system, where the communication system includes the first access point provided in the third aspect, or the fifth aspect, or the seventh aspect, and the station.
  • an embodiment of the present application provides a communication system, where the communication system includes the station provided in the fourth aspect, the sixth aspect, or the eighth aspect, and the first access point.
  • FIG. 1 is a first schematic diagram of a frame structure provided by an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a multi-link device provided in an embodiment of the present application.
  • FIG. 3 is a second schematic diagram of a frame structure provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of an element inheritance method provided by an embodiment of the present application.
  • FIG. 6 is a third schematic diagram of a frame structure provided by an embodiment of the present application.
  • Fig. 7a is a schematic diagram 4 of a frame structure provided by the embodiment of the present application.
  • Fig. 7b is a schematic diagram five of a frame structure provided by the embodiment of the present application.
  • FIG. 8 is a sixth schematic diagram of a frame structure provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a frame structure provided by an embodiment of the present application VII.
  • FIG. 10 is a schematic diagram eight of a frame structure provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a frame structure IX provided by the embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • plural means two or more than two.
  • At least one of the following or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • at least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
  • words such as “first” and “second” are used to distinguish the same or similar items with basically the same function and effect.
  • words such as “first” and “second” do not limit the number and execution order, and words such as “first” and “second” do not necessarily limit the difference.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design scheme described as “exemplary” or “for example” in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes.
  • the use of words such as “exemplary” or “such as” is intended to present related concepts in a concrete manner for easy understanding.
  • references to "an embodiment” throughout the specification mean that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Therefore, various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It can be understood that in various embodiments of the present application, the serial numbers of the processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes no limitation.
  • Multi-link device (MLD):
  • the next-generation WLAN standard (802.11be) of the Institute of Electrical and Electronics Engineers (IEEE) takes extremely high throughput (EHT) as a technical goal
  • EHT extremely high throughput
  • One of the existing key technologies is multi-link (multi-link, ML) communication.
  • WLAN devices that support the next-generation IEEE 802.11 standard have the ability to send and receive in multiple frequency bands, so that they can use larger bandwidth for transmission, thereby improving throughput.
  • a WLAN device capable of transmitting and receiving on multiple frequency bands may be called an MLD.
  • the above multiple frequency bands include but not limited to: 2.4GHz frequency band, 5GHz frequency band, and 6GHz frequency band.
  • the MLD includes at least two affiliated (affiliated) stations (stations, STAs), that is, affiliated STAs.
  • the affiliated station may be an access point station (access point station, AP STA) or a non-access point station (non-access point station, non-AP STA).
  • the AP STA is referred to as AP for short, and the non-AP STA is referred to as STA for short.
  • a multi-link device whose affiliated station is an AP can be called an AP multi-link device (AP multi-link device, AP MLD); a multi-link device whose affiliated station is an STA can be called an STA multi-link device (STA multi-link device).
  • STA MLD STA multi-link device
  • each affiliated station in the MLD can establish a link for communication, so the link established by multiple affiliated stations is called a multi-link.
  • AP MLD includes AP 1-AP N
  • STA MLD includes STA 1-STA N as an example, between AP 1 and STA 1 through link 1
  • AP A2 and STA 2 communicate through link 2, and so on, between station AP N and STA N through link N.
  • the non-transmitting BSSID inherits an element from the transmitting BSSID, it means that the AP (or BSS) corresponding to the non-transmitting BSSID provides the element, and the value of the element is the same as that of the element corresponding to the transmitting BSSID.
  • the non-transmitting BSSID does not inherit an element corresponding to the transmitting BSSID, it means that the AP (or BSS) corresponding to the non-transmitting BSSID does not need to provide or cannot provide the element or the information of the element.
  • the AP corresponding to the profile sub-element of each site inherits an element from the non-transmitting BSSID, it means that the AP corresponding to the profile sub-element of each site provides the element, and the value of the element is the same as that provided by the AP corresponding to the non-transmitting BSSID. same value.
  • the AP corresponding to each site profile sub-element does not inherit a certain element of the non-transmission BSSID, it means that the AP corresponding to each site profile sub-element does not need to provide or cannot provide the information of this element.
  • the management frame includes a frame control (frame control) field, a period (duration) field, element A, element B, and multiple BSSIDs Element (Multiple BSSID element), element C, element D, and element E, etc.
  • elements A, B, C, D, and E are the elements corresponding to the transmission BSSID.
  • the transmission BSSID is used to identify the BSS where AP 1 is located.
  • the elements corresponding to the transmission BSSID can be understood as elements provided by AP 1.
  • the multi-BSSID element includes an element ID (element ID) field, a length (length) field, a maximum BSSID indicator (MaxBSSID Indicator) field, and a nontransmitted BSSID profile N (Nontransmitted BSSID profile N) subelement, the nontransmitted BSSID profile N subelement Corresponding to AP N, AP N and AP 1 are in the same multi-BSSID set, and AP N is an AP that belongs to AP MLD A. It can be understood that the AP N is the AP corresponding to the non-transmitting BSSID.
  • Nontransmitted BSSID profile N sub-elements include nontransmitted BSSID capability (Nontransmitted BSSID capability) field, service set identifier (service set identifier, SSID) field, multiple BSSID index (Multiple BSSID-Index) field, element D, element E, element G , Basic variant Multi-Link element, and Non-Inheritance element.
  • nontransmitted BSSID capability Nontransmitted BSSID capability
  • service set identifier service set identifier, SSID
  • Multiple BSSID index Multiple BSSID-Index
  • elements A, B, and C do not appear in the non-transmission BSSID profile N sub-element, and the identifier of element A is listed in the non-inherited element of the non-transmission BSSID profile N sub-element, Indicates that the non-transit BSSID does not inherit element A, that is, AP N does not need to provide or cannot provide element A.
  • the identifiers of element B and element C are not listed in the non-inherited elements of the non-transmission BSSID profile N sub-element, indicating that AP N provides element B and element C, and the values of element B and element C are respectively the same as the elements in the management frame frame body B and element C have the same value.
  • element D and element E appearing in the frame body of the management frame also appear in the sub-element of the non-transmission BSSID profile N, indicating that the values of element D and element E provided by AP N are the same as those of elements D and E in the frame body of the management frame, respectively.
  • the value of element E is different.
  • the element G that does not appear in the management frame body appears in the non-transmission BSSID profile N sub-element, indicating that the AP N can provide the element G that does not appear in the management frame body.
  • the basic variant multi-link element includes element ID (Element ID) field, length (length) field, extended element ID (Element ID Extension), multi-link control field (Multi-Link Control), common information domain (Common Info field) ), and each site profile x (Pre-STA Profile x) sub-element.
  • the x sub-element of each site profile corresponds to AP x, and AP x and AP N belong to the same AP MLD, such as the above-mentioned AP MLD A. That is, AP x is an AP that belongs to the same AP MLD as the AP (AP N) corresponding to the non-transmitting BSSID.
  • Each site profile x subelement includes a subelement ID (Subelement ID) field, a length (length) field, and a data (data) field.
  • the data fields include STA Control (STA Control) field, STA Information (STA Info) field, element B, element G, and non-inherited elements.
  • element C, element D, and element E do not appear in the per-site profile x sub-element, and the identification of element C and element D does not appear in the per-site profile x sub-element Listed in the non-inherited elements of , it means that AP x inherits element C and element D from the non-transmission BSSID, that is, AP x provides the information of element C and element D, and the values of element C and element D provided by AP x are respectively the same as those of AP N Element C and element D are provided with the same value.
  • the identity of element E is listed in the non-inherited element of the N subelement of the non-transport BSSID profile, indicating that AP x does not need to provide or cannot provide information on element E.
  • the element G present in the N sub-element of the non-transport BSSID profile also appears in the per-site profile x sub-element, indicating that the value of element G provided by AP x is different from the value of element G provided by AP N.
  • the presence of element B in the x sub-element of each site profile indicates that the value of element B provided by AP x is different from the value of element B provided by AP N.
  • the present application provides an element inheritance method, which is used to solve the problem of setting an element whose non-transport BSSID is not inherited from the The AP corresponding to the site outline sub-element does not inherit this element.
  • the method provided by the present application may be applicable to wireless fidelity (wireless fidelity, Wi-Fi) scenarios or WLAN scenarios, for example, may be applicable to IEEE 802.11 system standards, such as 802.11a/b/g standards, 802.11n standards, 802.11ac standards, 802.11ax standard, or its next generation (for example, 802.11be standard) or the next generation standard.
  • IEEE 802.11 system standards such as 802.11a/b/g standards, 802.11n standards, 802.11ac standards, 802.11ax standard, or its next generation (for example, 802.11be standard) or the next generation standard.
  • the embodiments of the present application may be applicable to wireless local area network systems such as the Internet of Things (Internet of Things, IoT) or the Internet of Vehicles (vehicle to X, V2X).
  • the embodiment of the present application can also be applicable to other possible communication systems, for example, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division) duplex, TDD), universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, and the fifth generation (5th generation, 5G) communication system, etc.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunications system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • the above-mentioned communication system applicable to the present application is only an example, and the communication system applicable to the present application is not limited thereto, and will be described in a unified manner here, and will not be described in detail below.
  • the present application provides a WLAN communication system to which the embodiment of the present application is applicable, and the WLAN communication system includes a first access point 401 and a station 402 . Further, the WLAN communication system further includes a third access point 403 and a second access point 404 (not shown in FIG. 4 ).
  • the first access point 401 and the third access point 403 are in the first multi-BSSID set, the first access point 401 serves as the AP corresponding to the transmission BSSID in the first multi-BSSID set, and the third access point 403 serves as The AP corresponding to the non-transmitting BSSID in the first multi-BSSID set.
  • the third access point 403 and the second access point 404 belong to the same AP MLD (referred to as the first AP MLD), or in other words, the third access point 403 and the second access point 404 are the same AP MLD The subordinate access point.
  • the first access point 401 may be an AP that belongs to the second AP MLD, and the second AP MLD is not the first AP MLD.
  • the first access point may be an independent AP, that is, the first access point does not belong to any AP MLD.
  • the second access point 404 may be in a second multiple BSSID set, and the second multiple BSSID set is different from the first BSSID set.
  • the second access point 404 may be an AP corresponding to a transmitting BSSID in the second multiple BSSID set, or may be an AP corresponding to a non-transmitting BSSID in the second multiple BSSID set, which is not specifically limited in the present application.
  • the station 402 involved in this application may be a wireless communication chip, a wireless sensor or a wireless communication terminal.
  • a user terminal a user device, an access device, a subscriber station, a subscriber unit, a mobile station, a user agent, and a user equipment that support a Wi-Fi communication function.
  • the user terminal may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, Internet of things (Internet of things, IoT) devices, computing devices or other processing devices connected to wireless modems, and various forms of User equipment (user equipment, UE), mobile station (mobile station, MS), terminal (terminal), terminal equipment (terminal equipment), portable communication equipment, handsets, portable computing equipment, entertainment equipment, gaming equipment or systems, A global positioning system device or any other suitable device or the like configured for network communication via a wireless medium.
  • the STA may support the 802.11be standard or the next-generation WLAN standard of the 802.11be. STA can also support multiple WLAN standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • the access point (for example, the first access point 401, the second access point 404, or the third access point 403) involved in this embodiment of the present application may be deployed in a wireless communication network to provide wireless access to its associated STA.
  • Devices with communication functions are mainly deployed in homes, buildings, and parks, with a typical coverage radius of tens of meters to hundreds of meters. Of course, they can also be deployed outdoors.
  • the access point is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the access point may be a communication device such as a base station with a Wi-Fi chip, a router, a gateway, a repeater, a communication server, a switch or a network bridge, wherein the base station may include various forms of macro base stations, Micro base station, relay station, etc.
  • the access point may support the 802.11be standard or the next-generation WLAN standard of 802.11be.
  • the access point can also support WLAN standards such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
  • the executive body may perform some or all of the steps in the embodiments of the present application, these steps or operations are only examples, and the embodiments of the present application may also perform other operations or variations of various operations.
  • each step may be performed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all operations in the embodiment of the present application.
  • the transmission BSSID refers to the transmission BSSID in the first multi-BSSID set
  • the non-transmission BSSID refers to the non-transmission BSSID in the first multi-BSSID set.
  • FIG. 5 is a schematic flow chart of the element inheritance method provided by the embodiment of the present application.
  • the element inheritance method includes the following steps:
  • the first access point generates a management frame.
  • the management frame includes multiple BSSID elements and elements corresponding to the transmission BSSID.
  • the element corresponding to the transmission BSSID is the element provided by the first access point.
  • the element corresponding to the transmission BSSID may also be referred to as an element carried in a management frame, or an element that is carried in a Management frame (an element that is carried in a Management frame).
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a non-inheritance element.
  • the non-transmission BSSID profile sub-element corresponds to the third access point
  • the third access point corresponds to the non-transmission BSSID
  • the third access point is an AP corresponding to the non-transmission BSSID.
  • elements appearing in the non-transmission BSSID profile sub-element may be understood as elements provided by the third access point.
  • the elements indicated by the identifiers listed in the non-inherited elements of the non-transmission BSSID profile sub-element may be understood as elements that cannot be provided or need not be provided by the third access point.
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes a per-site profile sub-element
  • the per-site profile sub-element includes a non-inherited element.
  • the per-site profile sub-element corresponds to the second access point. As described above in the description related to Figure 4, the second access point and the third access point belong to the same AP MLD.
  • the multi-link element of the basic variant may include multiple per-site profile sub-elements, each profile sub-element corresponds to a second access point, and different per-site profile sub-elements correspond to different second access points. point, the second access point corresponding to each profile sub-element per site may be indicated through the STA control field in the profile sub-element per site.
  • This application uses a per-site profile sub-element as an example for illustration, and the features of the per-site profile sub-element provided in this application are applicable to each per-site profile sub-element included in the basic variant multi-link element.
  • the elements appearing in the sub-elements of each site profile may be understood as elements provided by the second access point.
  • the elements indicated by the identifiers listed in the non-inherited elements of each site profile sub-element may be understood as elements that cannot be provided or need not be provided by the second access point.
  • the setting of the first element in the per-site profile sub-element has the following two types Way:
  • Mode 1 When the second access point does not inherit the first element, the non-inherited element of each site profile sub-element lists the identifier of the first element.
  • the second access point does not inherit the first element, which may be understood as: the second access point cannot or does not need to provide the first element or the information of the first element.
  • the second access point not inheriting the first element may include that the second access point does not inherit the first element from the transmitting BSSID.
  • the management frame in this application may be referred to as layer 1
  • the non-transport BSSID profile sub-element may be referred to as layer 2
  • the per-site profile sub-element may be referred to as layer 3.
  • the first method can also be described as: when the first element that appears in the first layer does not appear in the second layer, and the discontinuing element of the second layer lists the identifier of the first element, if the third layer If the corresponding access point (that is, the second access point) does not need or cannot provide the first element or the information of the first element, then the identifier of the first element is listed in the non-inherited elements of the third layer.
  • the elements corresponding to the transmission BSSID include element A, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of element A, that is, the non-transmission BSSID does not inherit element A from the transmission BSSID, then each The non-inherited element of the site profile sub-element lists the identity of the first element to indicate that the second access point does not inherit element A.
  • the non-inherited element of the site profile sub-element lists the identity of the first element to indicate that the second access point does not inherit element A.
  • the element that is not inherited from the first layer in the second layer is element A
  • the elements that are not inherited in the third layer include element A and element E
  • elements are listed in the non-inherited elements of the third layer Identification of A and element E. That is to say, in this application, when the elements not inherited at the second level and the elements not inherited at the third level are not completely the same or completely different, the non-inherited elements at the third level list the elements not inherited at the third level Identifiers for all elements.
  • the element corresponding to the transmission BSSID includes element A
  • the non-inherited element of the non-transmission BSSID outline sub-element lists the identifier of element A, that is, the non-transmission BSSID does not inherit element A from the transmission BSSID
  • the second access point inherits the element E from the non-transmission BSSID, that is, the element E that appears in the second layer does not appear in the third layer, and the non-inherited element of the third layer does not list the identity of the element E, then each station
  • the non-inherited element of the profile sub-element lists the identity of the first element to indicate that the second access point does not inherit element A.
  • the element that is not inherited from the first layer in the second layer is element A
  • the element that is not inherited in the third layer is also element A
  • the non-inherited elements of the third layer list the elements of element A logo. That is to say, in this application, if the elements not inherited in the second layer and the elements not inherited in the third layer are exactly the same, all the elements not inherited in the third layer still need to be listed in the non-inherited elements of the third layer logo. In this scenario, it can be considered that the non-inherited element does not have inheritance, because when the non-inherited element of the third layer is the same as the non-inherited element of the second layer, the third layer still carries the non-inherited element.
  • Mode 2 When the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element does not appear in the per-site profile sub-element and the non-inherited element of each site-profile sub-element does not list the identifier of the first element .
  • the second access point inherits the first element from the element corresponding to the transmission BSSID, which can also be described as: the second access point inherits the first element from the transmission BSSID, and the two can replace each other.
  • the second access point inherits the first element from the element corresponding to the transmission BSSID, which can be understood as: the second access point provides the first element, and the value of the first element provided by the second access point is the same as the transmission BSSID
  • the value of the corresponding first element is the same, or in other words, the value of the first element provided by the first access point is the same.
  • the first element may be element A
  • the frame structure shown in Figure 3 can be understood as: the AP slave transmission corresponding to each site profile sub-element Element A is inherited from the element corresponding to BSSID.
  • the discontinuing element of the second layer lists the identifier of the first element
  • the access point corresponding to the third layer That is, the second access point
  • the value of the first element provided by the second access point is the same as the value of the first element appearing in the first layer
  • the first element may not be in the third layer appears, and the ID of the first element is not listed in the non-inherited elements of the third level. In this scenario, it can be considered that there is inheritance between the third layer and the first layer.
  • Mode 3 When the value of the first element provided by the second access point is different from the value of the first element corresponding to the transmission BSSID, the first element appears in the per-site profile sub-element.
  • the value of the first element appearing in each site profile sub-element is the value of the first element provided by the second access point.
  • the first element whose non-transmission BSSID is not inherited from the transmission BSSID is element A, if the second access point provides element A, and the value of element A provided by the second access point is transmission BSSID If the values of the corresponding first elements are different, then no element A appears in the sub-element of the site profile.
  • the discontinuing element of the second layer lists the identifier of the first element, if the access point corresponding to the third layer (That is, the second access point) provides the first element, and the value of the first element provided by the second access point is different from the value of the first element appearing in the first layer, then the first element can be in the third layer Appear.
  • the management frame may be a probe response (probe response) frame.
  • the management frame may also be another type of management frame, and this application does not specifically limit the type of the management frame.
  • the first access point sends a management frame to the station.
  • the station receives the management frame from the first access point.
  • the first access point may send the management frame to the station through unicast or multicast, which is not specifically limited in this application.
  • the site parses the management frame.
  • the site resolution management frame may specifically include: the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element: when each site When the non-inherited element of the profile sub-element lists the identity of the first element, the station determines that the second access point does not inherit the first element.
  • the station determines that the access point corresponding to the third layer (that is, the second access point) does not need or cannot provide the first element or the information of the first element.
  • the station may determine that the second access point does not need or cannot provide the first element or the information of the first element.
  • the site resolution management frame may specifically include: when the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element: when each When the first element does not appear in the station profile sub-element and the non-inherited element of each site profile sub-element does not list the identifier of the first element, the station determines that the second access point inherits the first element from the element corresponding to the transmission BSSID.
  • the station can determine that the access point corresponding to the third layer (that is, the second access point) provides the first element, and the second The value of the first element provided by the access point is the same as the value of the first element present in the first layer.
  • the station may determine that the second access point provides the first element, and the value of the first element provided by the second access point is consistent with the value of the first layer.
  • the first element has the same value.
  • listing the identity of the first element in the non-inherited element of the per-site profile sub-element can directly and explicitly indicate that the per-site profile sub-element
  • the access point corresponding to the element does not inherit the first element, so that the station knows that the access point corresponding to each station profile sub-element does not provide the first element.
  • the first element when the access point corresponding to the per-site profile sub-element provides the first element, and the value is the same as the value of the first element corresponding to the transmission BSSID, the first element may not appear in the per-site profile sub-element and the per-site profile sub-element The identity of the first element is not listed in the non-inherited elements of the element to indicate that the access point corresponding to the per-site profile sub-element inherits the first element from the element corresponding to the transport BSSID, compared to the access point corresponding to the per-site profile sub-element In the scheme that the point can only inherit elements from the non-transmission BSSID, the first element may not appear in the sub-element of each site profile, so that the signaling overhead occupied by the first element can be saved.
  • the above-mentioned transmitting BSSID, non-transmitting BSSID, and the second access point may also have at least one of the following inheritance relationships:
  • the element corresponding to the transmitting BSSID includes the second element, the second element appears in the non-transmitting BSSID profile sub-element, and the value of the second element corresponding to the transmitting BSSID and the second element appearing in the non-transmitting BSSID profile sub-element are different Down:
  • the second access point inherits the second element from the non-transmitting BSSID
  • the second element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the identity of the second element.
  • the non-transmission BSSID corresponds to the third access point
  • the third access point corresponds to the non-transmission BSSID profile sub-element.
  • the second element may not appear in the third layer, and the identifier of the second element is not listed in the non-inherited sub-element of the third layer.
  • the second element may be element D, element D appears on both the first layer and the second layer, and when the second access point inherits the second element from the non-transmission BSSID, the third layer does not The second element appears, and the identifier of the second element is not listed in the non-inherited child elements of the third layer.
  • the method may further include: the element corresponding to the transmission BSSID includes the second element, the second element appears in the outline sub-element of the non-transmission BSSID, and the second element corresponding to the transmission BSSID and the non-transmission BSSID In case the value of the second element present in the transmitted BSSID profile sub-element is different:
  • the station determines that the second access point inherits the second element from the non-transmitting BSSID, i.e. It is determined that the second access point provides the second element, and the value of the second element provided by the second access point is the same as the value of the second element provided by the third access point.
  • a third element appears in the non-transmission BSSID profile sub-element: when the second access point does not inherit the third element, the non-inherited element of the per-site profile sub-element lists the identity of the third element; or, When the second access point inherits the third element from the non-transmitting BSSID, the third element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the identity of the third element.
  • the third element when the third element appears in the second layer: when the second access point does not inherit the third element, the non-inherited element of the third layer lists the identifier of the third element; or, when the second access point When the entry point inherits the third element from the non-transport BSSID, the third element may not appear in the third layer and the non-inherited element of the third layer does not list the identifier of the third element.
  • the third element may be element E, element E appears in the second layer, and when the second access point does not inherit element E, the non-inherited element of the third layer lists the identifier of element E .
  • the third element may be element G, and when the second access point inherits the third element from the non-transmission BSSID, element G does not appear in the third layer and the non-inherited elements of the third layer do not list elements G logo.
  • the method may further include: when the third element appears in the non-transmission BSSID profile sub-element: when the non-inherited element of each site profile sub-element lists the identifier of the third element
  • the station determines that the second access point does not inherit the third element, that is, it determines that the second access point does not provide the third element or the information of the third element; or, when the third element does not appear in the sub-element of each site profile and
  • the station determines that the second access point inherits the third element from the non-transmitting BSSID, that is, determines that the second access point provides the third element, and the second access point
  • the value of the third element provided by the second access point is the same as the value of the third element provided by the third access point.
  • the present application also provides an element inheritance rule, which may include: when an element whose non-transport BSSID is not inherited from the transit BSSID is exactly the same as an element not inherited by the second access point, the per-site profile sub-element does not appear non-inherited elements. That is to say, when the elements indicated by the identifiers listed in the non-inherited elements of the second layer are exactly the same as the elements not inherited by the second access point, no non-inherited elements appear in the third layer.
  • non-inherited elements do not appear in the per-site profile sub-elements, which can be understood as: per-site profile sub-elements inherit the non-inherited elements of the non-transfer BSSID, that is, the non-inherited elements of the per-site profile sub-elements and the non-transfer BSSID profile sub-elements The non-inherited elements of the same. In this scenario, non-inherited elements can be considered to be inherited.
  • elements not inherited by the second access point may be understood as elements that the second access point does not need to provide or cannot provide, and may replace each other.
  • the identifier of element A is listed in the non-inherited element of the second layer, indicating that the non-transmission BSSID does not inherit element A from the transmission BSSID, and the element not inherited by the second access point is also an element A, per-site profile child elements do not include non-inherited elements. It can be understood that, in the example shown in FIG. 9 , the second access point inherits the element E from the non-transmitting BSSID.
  • the rule may further include: when the element whose non-transport BSSID is not inherited from the transit BSSID is not exactly the same or completely different from the element not inherited by the second access point, list IDs of all elements not inherited by the second access point.
  • the non-inherited element listed in the third layer is not completely the same as or completely different from the element not inherited by the second access point, the non-inherited element listed in the third layer The id of all elements not inherited by the second access point.
  • the identifier of element A is listed in the non-inherited element of the second layer, indicating that the non-transmission BSSID does not inherit element A from the transmission BSSID.
  • the second access point does not inherit the element A , element E, and element G
  • the identifiers of element A, element E, and element G are listed in the non-inherited elements of each site profile child element.
  • the rule may further include: an element whose non-transmitting BSSID is not inherited from the transmitting BSSID is the same as the element required to be provided by the second access point, the element appears in the sub-element of each site profile.
  • the order of element inheritance is from the transmission BSSID to the non-transmission BSSID, and from the non-transmission BSSID to the access point corresponding to each site profile sub-element, and between the transmission BSSID and each site profile sub-element corresponding to the access point There is no inheritance relationship.
  • the third layer This element appears in .
  • the value of the element provided by the second access point may be the same as or different from the value of the element corresponding to the transmission BSSID, which is not specifically limited in the present application.
  • the identifier of element A is listed in the non-inherited element of the second layer, indicating that the non-transmission BSSID does not inherit element A from the transmission BSSID.
  • the element A appears on the third layer. It can be understood that, in the example shown in FIG. 11 , the second access point does not inherit the element E.
  • the element inheritance method of the embodiment of the present application is introduced above, and the communication device of the embodiment of the present application is introduced below.
  • the communication device of the embodiment of the present application includes a communication device applied to the sending end and a communication device applied to the receiving end. It should be understood that the application The communication device at the sending end is the first access point in the above method, which has any function of the first access point in the above method, and the communication device applied to the receiving end is the station in the above method, which has the above Arbitrary functions of the site in the method.
  • the communication device applied to the sending end includes: a processing module and a transceiver module.
  • the processing module is used to generate the management frame; the transceiver module is used to send the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transport BSSID, the multi-BSSID element includes a non-transmit BSSID profile sub-element, the non-transmit BSSID profile sub-element includes a basic variant multi-link element, and the basic variant multi-link element includes a Outline sub-element, each station outline sub-element corresponds to the second access point;
  • the element corresponding to the transmission BSSID includes the first element
  • the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element: when the second access point does not inherit the first element, the per-site profile The non-inherited element of the sub-element lists the identifier of the first element; when the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element and the per-site profile sub-element do not appear in the per-site profile sub-element
  • Non-inheriting elements do not list the ID of the first element.
  • the communication device applied to the sending end provided by the embodiment of the present application is the first access point in the above method, which has any function of the first access point in the above method.
  • the above method please refer to the above method. Here No longer.
  • the communication device applied to the receiving end includes: a processing module and a transceiver module.
  • a transceiver module configured to receive a management frame from the first access point, the management frame includes a multi-BSSID element and an element corresponding to a transmission BSSID, the multi-BSSID element includes a non-transmission BSSID profile sub-element, and the non-transmission BSSID profile sub-element includes a basic variant Multi-link element, basic variant
  • the multi-link element includes a per-site profile sub-element, and each site-profile sub-element corresponds to the second access point.
  • the processing module is used to: when the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmitted BSSID profile sub-element lists the identification of the first element: when the non-inherited element of the profile sub-element of each site lists When identifying the first element, it is determined that the second access point does not inherit the first element; when the first element does not appear in the per-site profile sub-element and the non-inherited element of each site profile sub-element does not list the first element's identification , to determine that the second access point inherits the first element from the element corresponding to the transmission BSSID.
  • the communication device applied to the sending end is the station in the above method, which has any function of the station in the above method.
  • the communication device applied to the sending end is the station in the above method, which has any function of the station in the above method.
  • the communication device applied to the sending end and the communication device applied to the receiving end are introduced above.
  • the following describes the possible product forms of the communication device applied to the sending end and the communication device applied to the receiving end. It should be understood that any product of any form having the characteristics of the communication device applied to the sending end described in FIG. 12 above, and any product of any form having the characteristics of the communication device applied to the receiving end described in FIG. protection scope of this application. It should also be understood that the following introduction is only an example, and does not limit the product form of the communication device applied to the sending end and the product form of the communication device applied to the receiving end in the embodiments of the present application.
  • the communication device applied to the sending end and the communication device applied to the receiving end described in the embodiments of the present application may be implemented by a general bus architecture.
  • the communication device applied to the sending end includes a processor and a transceiver internally connected to communicate with the processor; the processor is used to generate a management frame; and the transceiver is used to send the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes Each site profile sub-element, each site profile sub-element corresponds to the second access point.
  • the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element: when the second access point does not inherit the first element, the per-site profile sub-element The non-inherited element of the element lists the identification of the first element; when the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element does not appear in the per-site profile sub-element and the non- Inherited elements do not list the ID of the first element.
  • the communication device applied to the sending end may further include a memory, where the memory is used to store instructions executed by the processor.
  • the communication device applied to the receiving end includes a processor and a transceiver internally connected and communicating with the processor; the transceiver is used for receiving a management frame; and the processor is used for parsing the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes Each site profile sub-element, each site profile sub-element corresponds to the second access point.
  • the processor is specifically configured to: when the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element: when the non-inheritance of the per-site profile sub-element When the element lists the identity of the first element, it is determined that the second access point does not inherit the first element; when the first element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the first element When the identifier of , it is determined that the second access point inherits the first element from the element corresponding to the transmission BSSID.
  • the communication device applied to the receiving end may further include a memory, where the memory is used to store instructions executed by the processor.
  • the communication device applied to the sending end and the communication device applied to the receiving end described in the embodiments of the present application may be implemented by a general-purpose processor.
  • the general-purpose processor implementing the communication device applied to the sending end includes a processing circuit and an output interface internally connected and communicating with the processing circuit.
  • the processing circuit is used to generate a management frame; the output interface is used to send the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes Each site profile sub-element, each site profile sub-element corresponds to the second access point.
  • the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element: when the second access point does not inherit the first element, the per-site profile sub-element The non-inherited element of the element lists the identification of the first element; when the second access point inherits the first element from the element corresponding to the transmission BSSID, the first element does not appear in the per-site profile sub-element and the non- Inherited elements do not list the ID of the first element.
  • the general-purpose processor may further include a storage medium for storing instructions executed by the processing circuit.
  • the general-purpose processor implementing the communication device applied to the receiving end includes a processing circuit and an input interface internally connected and communicating with the processing circuit.
  • the input interface is used for receiving the management frame; the processing circuit is used for parsing the management frame.
  • the management frame includes a multi-BSSID element and elements corresponding to the transmission BSSID
  • the multi-BSSID element includes a non-transmission BSSID profile sub-element
  • the non-transmission BSSID profile sub-element includes a basic variant multi-link element
  • the basic variant multi-link element includes Each site profile sub-element, each site profile sub-element corresponds to the second access point.
  • the processing circuit is specifically used to: when the element corresponding to the transmission BSSID includes the first element, and the non-inherited element of the non-transmission BSSID profile sub-element lists the identifier of the first element: when the non-inheritance of the per-site profile sub-element When the element lists the identity of the first element, it is determined that the second access point does not inherit the first element; when the first element does not appear in the per-site profile sub-element and the non-inherited element of the per-site profile sub-element does not list the first element When the identifier of , it is determined that the second access point inherits the first element from the element corresponding to the transmission BSSID.
  • the general-purpose processor may further include a storage medium for storing instructions executed by the processing circuit.
  • the communication device applied to the sending end and the communication device applied to the receiving end described in the embodiment of this application can also be implemented by using the following: one or more field-programmable gate arrays (field-programmable gate array (FPGA), programmable logic device (programmable logic device, PLD), controller, state machine, gate logic, discrete hardware components, any other suitable circuit, or capable of performing the various functions described throughout this application Any combination of circuits.
  • FPGA field-programmable gate array
  • PLD programmable logic device
  • controller state machine
  • gate logic discrete hardware components
  • the communication device applied to the sending end and the communication device applied to the receiving end in the above various product forms respectively have any function of the first access point and the station in the above method embodiment, which will not be repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of software products, and the computer software products are stored in a storage medium
  • several instructions are included to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

本申请提供一种元素继承方法及装置，用于解决非传输BSSID未从传输BSSID继承的某个元素在每站点轮廓子元素中的设置问题。该方法包括：第一接入点生成并发送管理帧，站点接收并解析该管理帧。该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素中的非传输BSSID轮廓子元素包括基本变体多链路元素，其包括的每站点轮廓子元素对应第二接入点。传输BSSID对应的元素包括第一元素，非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素且每站点轮廓子元素的非继承元素不列出第一元素的标识。

Description

元素继承方法及装置
本申请要求于2021年07月15日提交国家知识产权局、申请号为202110802036.1、申请名称为“元素继承方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及元素继承方法及装置。
背景技术
在无线局域网(wireless local area network，WLAN)中，同一多基本服务集标识(basic service set identifier，BSSID)集合包括传输BSSID和非传输BSSID。通常，传输BSSID对应的报告(reporting)接入点(access point，AP)可以通过管理帧发送传输BSSID对应的元素(element)。此外，该管理帧还可以携带被报告(reported)AP的元素，reported AP可以包括非传输BSSID对应的AP，还可以包括与非传输BSSID对应的AP隶属于同一AP多链路设备(multi-link device，MLD)的其他AP。
示例性的，如图1所示，管理帧携带的标识(identifier，ID)等于A、B、C、D、E的元素为传输BSSID对应的元素。管理帧的多BSSID元素(Multiple BSSID element)可以包括非传输BSSID轮廓(Nontransmitted BSSID Profile)子元素，对应非传输BSSID对应的AP；非传输BSSID轮廓子元素的基本变体多链路元素(Basic variant Multi-Link element)可以包括每站点轮廓(Per-STA Profile)子元素，对应与非传输BSSID对应的AP隶属于同一AP MLD的其他AP。
现有的元素继承性规则中，非传输BSSID可以从传输BSSID继承元素，每站点轮廓子元素对应的AP可以从非传输BSSID继承元素。当非传输BSSID从传输BSSID继承某个元素时，该元素可以不在非传输BSSID轮廓子元素中出现，且该元素的标识没有在非传输BSSID轮廓子元素的非继承元素(Non-Inheritance)中列出；当非传输BSSID不从传输BSSID继承某个元素时，该元素的标识在非传输BSSID轮廓子元素的不继承(Non-Inheritance)元素中列出，例如，非传输BSSID不继承元素A，则元素A的标识在非传输BSSID轮廓子元素的非继承元素中列出。每站点轮廓子元素对应的AP与非传输BSSID之间的继承性类似。
在上述元素继承性讨论中，非传输BSSID未从传输BSSID继承的某个元素(例如元素A)，在每站点轮廓子元素中的设置形式是目前亟待解决的问题。
发明内容
本申请实施例提供元素继承方法及装置，用于解决非传输BSSID未从传输BSSID继承的某个元素在每站点轮廓子元素中的设置问题，能够节省信令开销或显式指示每站点轮廓子元素对应的AP不继承该元素。
第一方面，提供一种元素继承方法，该方法包括：第一接入点生成并发送管理帧。该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。其中，在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；当第二接入 点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
基于该方案，对于非传输BSSID未从传输BSSID继承的第一元素，在每站点轮廓子元素的非继承元素中列出该第一元素的标识，能够直接地、显式地指示每站点轮廓子元素对应的接入点不继承该第一元素，从而使得站点能够快速获知第二接入点不提供第一元素，降低管理帧的解析时延。或者，在第二接入点提供第一元素，且该第一元素的值与传输BSSID对应的第一元素的值相同时，每站点轮廓子元素中可以不出现第一元素且每站点轮廓子元素的非继承元素中不列出第一元素的标识，以指示第二接入点从传输BSSID对应的元素继承第一元素，相比于第二接入点只能从非传输BSSID继承元素的方案，可以不在每站点轮廓子元素中出现第一元素，从而可以节省该第一元素占用的信令开销。
在一些可能的设计中，在传输BSSID对应的元素包括第二元素，非传输BSSID轮廓子元素中出现第二元素，且传输BSSID对应的第二元素和非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：当第二接入点从非传输BSSID继承第二元素时，每站点轮廓子元素中不出现第二元素以及每站点轮廓子元素的非继承元素不列出第二元素的标识。其中，非传输BSSID为非传输BSSID轮廓子元素对应的BSSID。
基于该可能的设计，对于管理帧和非传输BSSID轮廓子元素中均出现的第二元素，第二接入点能够从非传输BSSID继承该第二元素，从而节省第二元素占用的信令开销。
在一些可能的设计中，在非传输BSSID轮廓子元素中出现第三元素的情况下：当第二接入点不继承第三元素时，每站点轮廓子元素的非继承元素列出第三元素的标识；当第二接入点从非传输BSSID继承第三元素时，每站点轮廓子元素中不出现第三元素以及每站点轮廓子元素的非继承元素不列出第三元素的标识。其中，非传输BSSID为非传输BSSID轮廓子元素对应的BSSID。
基于该可能的设计，对于非传输BSSID轮廓子元素中出现的第三元素，在每站点轮廓子元素的非继承元素中列出该第三元素的标识，能够直接地、显式地指示第二接入点不继承第三元素，从而使得站点能够快速获知第二接入点不提供第三元素，降低管理帧的解析时延。或者，在第二接入点提供第三元素，且该第三元素的值与传输BSSID对应的第三元素的值相同时，每站点轮廓子元素中可以不出现第三元素且每站点轮廓子元素的非继承元素中不列出第三元素的标识，以指示第二接入点从非传输BSSID继承第三元素，从而节省该第三元素占用的信令开销。
第二方面，提供一种元素继承方法，该方法包括：站点接收来自第一接入点的管理帧。该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。其中，传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当每站点轮廓子元素的非继承元素列出第一元素的标识时，站点确定第二接入点不继承第一元素；当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，站点确定第二接入点从传输BSSID对应的元素继承第一元素。
基于该方案，对于非传输BSSID未从传输BSSID继承的第一元素，每站点轮廓子元素的非继承元素中列出该第一元素的标识时，站点能够快速确定第二接入点不提供第一元素，降低管理帧的解析时延。或者，每站点轮廓子元素中可以不出现第一元素且每站 点轮廓子元素的非继承元素中不列出第一元素的标识时，站点能够确定第二接入点从传输BSSID对应的元素继承第一元素，相比于第二接入点只能从非传输BSSID继承元素的方案，可以不在每站点轮廓子元素中出现第一元素，从而可以节省该第一元素占用的信令开销。
在一些可能的设计中，该方法还包括：在传输BSSID对应的元素包括第二元素，非传输BSSID轮廓子元素中出现第二元素，且传输BSSID对应的第二元素和非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：当每站点轮廓子元素中不出现第二元素以及每站点轮廓子元素的非继承元素不列出第二元素的标识时，该站点确定第二接入点从非传输BSSID继承第二元素。其中，非传输BSSID为非传输BSSID轮廓子元素对应的BSSID。
在一些可能的设计中，该方法还包括：非传输BSSID轮廓子元素中出现第三元素的情况下：当每站点轮廓子元素的非继承元素列出第三元素的标识时，该站点确定第二接入点不继承第三元素；当每站点轮廓子元素中不出现第三元素以及每站点轮廓子元素的非继承元素不列出第三元素的标识时，该站点确定第二接入点从非传输BSSID继承第三元素。其中，非传输BSSID为非传输BSSID轮廓子元素对应的BSSID。
其中，第二方面的任一可能的设计所带来的技术效果，可参考上述第一方面中相应设计所带来的技术效果，在此不再赘述。
第三方面，提供一种第一接入点，该第一接入点包括：处理模块和收发模块。处理模块，用于生成管理帧。收发模块，用于发送管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：
当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；
当第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
第三方面提供的第一接入点用于实现上述第一方面或第一方面的任一种可能的设计中第一接入点的行为功能，具体细节可参见上述第一方面或第一方面的任一种可能的设计中的描述，此处不再赘述。
第四方面，提供一种站点，该站点包括：处理模块和收发模块。其中，收发模块，用于接收来自第一接入点的管理帧，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。
处理模块，用于在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：
当每站点轮廓子元素的非继承元素列出第一元素的标识时，确定第二接入点不继承第一元素；
当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，确定第二接入点从传输BSSID对应的元素继承第一元素。
第四方面提供的站点用于实现上述第二方面或第二方面的任一种可能的设计中站点的行为功能，具体细节可参见上述第二方面或第二方面的任一种可能的设计中的描述，此处不再赘述。
第五方面，提供一种第一接入点，该第一接入点包括：处理电路以及与处理电路内部连接通信的输出接口。处理电路，用于生成管理帧；输出接口，用于发送管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：
当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；
当第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
第五方面提供的第一接入点用于实现上述第一方面或第一方面的任一种可能的设计中第一接入点的行为功能，具体细节可参见上述第一方面或第一方面的任一种可能的设计中的描述，此处不再赘述。
第六方面，提供一种站点，该站点包括：处理电路以及与处理电路内部连接通信的输入接口。其中，输入接口，用于接收来自第一接入点的管理帧，管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。
处理电路，用于在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：
当每站点轮廓子元素的非继承元素列出第一元素的标识时，确定第二接入点不继承第一元素；
当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，确定第二接入点从传输BSSID对应的元素继承第一元素。
第六方面提供的站点用于实现上述第二方面或第二方面的任一种可能的设计中站点的行为功能，具体细节可参见上述第二方面或第二方面的任一种可能的设计中的描述，此处不再赘述。
第七方面，提供一种第一接入点，该第一接入点包括：处理器以及与处理器内部连接通信的收发器。处理器，用于生成管理帧；收发器，用于发送管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：
当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；
当第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
第七方面提供的第一接入点用于实现上述第一方面或第一方面的任一种可能的设计中第一接入点的行为功能，具体细节可参见上述第一方面或第一方面的任一种可能的设计中的描述，此处不再赘述。
第八方面，提供一种站点，该站点包括：处理器以及与处理器内部连接通信的收发器。其中，收发器，用于接收来自第一接入点的管理帧，管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID 轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。
处理器，用于在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：
当每站点轮廓子元素的非继承元素列出第一元素的标识时，确定第二接入点不继承第一元素；
当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，确定第二接入点从传输BSSID对应的元素继承第一元素。
第八方面提供的站点用于实现上述第二方面或第二方面的任一种可能的设计中站点的行为功能，具体细节可参见上述第二方面或第二方面的任一种可能的设计中的描述，此处不再赘述。
第九方面，本申请实施例提供一种计算机可读存储介质，用于存储计算机程序，所述计算机程序包括用于执行上述第一方面或第一方面任意可能的实现方式的指令。
第十方面，本申请实施例提供一种计算机可读存储介质，用于存储计算机程序，所述计算机程序包括用于执行上述第二方面或第二方面任意可能的实现方式的指令。
第十一方面，本申请实施例提供一种计算机程序产品，所述计算机程序产品包括用于执行上述第一方面或第一方面任意可能的实现方式的指令。
第十二方面，本申请实施例提供一种计算机程序产品，所述计算机程序产品包括用于执行上述第二方面或第二方面任意可能的实现方式的指令。
第十三方面，本申请实施例提供一种通信系统，所述通信系统包括上述第三方面或第五方面或第七方面所提供的第一接入点，和，站点。
第十四方面，本申请实施例提供一种通信系统，所述通信系统包括上述第四方面或第六方面或第八方面所提供的站点，和，第一接入点。
附图说明
图1为本申请实施例提供的一种帧结构示意图一；
图2为本申请实施例提供的一种多链路设备的结构示意图；
图3为本申请实施例提供的一种帧结构示意图二；
图4为本申请实施例提供的一种通信系统的结构示意图；
图5为本申请实施例提供的一种元素继承方法的流程示意图；
图6为本申请实施例提供的一种帧结构示意图三；
图7a为本申请实施例提供的一种帧结构示意图四；
图7b为本申请实施例提供的一种帧结构示意图五；
图8为本申请实施例提供的一种帧结构示意图六；
图9为本申请实施例提供的一种帧结构示意图七；
图10为本申请实施例提供的一种帧结构示意图八；
图11为本申请实施例提供的一种帧结构示意图九；
图12为本申请实施例提供的一种通信装置的结构示意图；
图13为本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
在本申请的描述中，除非另有说明，“/”表示前后关联的对象是一种“或”的关系，例如，A/B可以表示A或B；本申请中的“和/或”仅仅是一种描述关联对象的关 联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况，其中A，B可以是单数或者复数。
在本申请的描述中，除非另有说明，“多个”是指两个或多于两个。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。同时，在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念，便于理解。
可以理解，说明书通篇中提到的“实施例”意味着与实施例有关的特定特征、结构或特性包括在本申请的至少一个实施例中。因此，在整个说明书各个实施例未必指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。可以理解，在本申请的各种实施例中，各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
可以理解，在本申请中，“当…时”以及“若”均指在某种客观情况下会做出相应的处理，并非是限定时间，且也不要求实现时要有判断的动作，也不意味着存在其它限定。
可以理解，本申请实施例中的一些可选的特征，在某些场景下，可以不依赖于其他特征，比如其当前所基于的方案，而独立实施，解决相应的技术问题，达到相应的效果，也可以在某些场景下，依据需求与其他特征进行结合。相应的，本申请实施例中给出的装置也可以相应的实现这些特征或功能，在此不予赘述。
本申请中，除特殊说明外，各个实施例之间相同或相似的部分可以互相参考。在本申请中各个实施例、以及各实施例中的各个实施方式/实施方法/实现方法中，如果没有特殊说明以及逻辑冲突，不同的实施例之间、以及各实施例中的各个实施方式/实施方法/实现方法之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例、以及各实施例中的各个实施方式/实施方法/实现方法中的技术特征根据其内在的逻辑关系可以组合形成新的实施例、实施方式、实施方法、或实现方法。以下所述的本申请实施方式并不构成对本申请保护范围的限定。
为了方便理解本申请实施例的技术方案，首先给出本申请相关技术的简要介绍如下。
1、多链路设备(multi-link device，MLD)：
为了达到极高吞吐率的技术目标，电气和电子工程师协会(institute of electrical and electronics engineers，IEEE)的下一代WLAN标准(802.11be)将极高吞吐率(extremely high throughput，EHT)作为技术目标，其中一个已有的关键技术即为多链路(multi-link，ML)通信。
多链路通信的核心思想是支持下一代IEEE 802.11标准的WLAN设备拥有在多个频 段上发送和接收的能力，从而可以使用更大的带宽进行传输，进而提升吞吐率。其中，拥有在多个频段上发送和接收的能力的WLAN设备可以称为MLD。示例性的，上述多个频段包括但不限于：2.4GHz频段、5GHz频段、以及6GHz频段。
本申请中，MLD包括至少两个隶属的(affiliated)站点(station，STA)，即affiliated STA。其中，该隶属的站点可以为接入点站点(access point station，AP STA)或非接入点站点(non-access point station，non-AP STA)。
为描述方便，本申请下述实施例将AP STA简称为AP，将non-AP STA简称为STA。隶属的站点为AP的多链路设备可以称为AP多链路设备(AP multi-link device，AP MLD)；隶属的站点为STA的多链路设备可以称为STA多链路设备(STA multi-link device，STA MLD)。
本申请中，MLD中的每一个隶属的站点可以建立一个链路进行通信，从而多个隶属的站点建立的链路便称为多链路。
示例性的，如图2所示，以AP MLD和STA MLD进行通信，AP MLD包含AP 1-AP N，STA MLD包含STA 1-STA N为例，AP 1和STA 1之间通过链路1进行通信，AP A2和STA 2之间通过链路2进行通信，以此类推，站点AP N和STA N之间通过链路N进行通信。
2、继承与不继承：
非传输BSSID从传输BSSID继承某个元素时，表示非传输BSSID对应的AP(或BSS)提供该元素，且该元素的值与传输BSSID对应的该元素的值相同。非传输BSSID不继承传输BSSID对应的某个元素时，表示非传输BSSID对应的AP(或BSS)无需提供或无法提供该元素或该元素的信息。
类似的，每站点轮廓子元素对应的AP从非传输BSSID继承某个元素时，表示每站点轮廓子元素对应的AP提供该元素，且该元素的值与非传输BSSID对应AP提供的该元素的值相同。每站点轮廓子元素对应的AP不继承非传输BSSID的某个元素时，表示每站点轮廓子元素对应的AP无需提供或无法提供该元素的信息。
示例性的，如图3所示，以生成并发送管理帧的reporting AP为AP 1例，该管理帧包括帧控制(frame control)字段、期间(duration)字段、元素A、元素B、多BSSID元素(Multiple BSSID element)、元素C、元素D、以及元素E等。其中，元素A、B、C、D、E即为传输BSSID对应的元素，该传输BSSID用于标识AP 1所在的BSS，传输BSSID对应的元素可以理解为AP 1提供的元素。
多BSSID元素包括元素标识(element ID)字段、长度(length)字段、最大BSSID指示(MaxBSSID Indicatior)字段、以及非传输BSSID轮廓N(Nontransmitted BSSID profile N)子元素，该非传输BSSID轮廓N子元素对应AP N，AP N与AP 1处于同一多BSSID集合中，且AP N为隶属于AP MLD A的AP。可以理解的，该AP N为非传输BSSID对应的AP。
非传输BSSID轮廓N子元素包括非传输BSSID能力(Nontransmitted BSSID capability)字段、服务集标识(service set identifier，SSID)字段、多BSSID索引(Multiple BSSID-Index)字段、元素D、元素E、元素G、基本变体多链路元素(Basic variant Multi-Link element)、以及不继承(Non-Inheritance)元素。
其中，相比于管理帧帧体，元素A、B、C均没有出现在非传输BSSID轮廓N子元素中，且元素A的标识在非传输BSSID轮廓N子元素的非继承元素中列出，表示非传 输BSSID不继承元素A，即AP N无需提供或无法提供元素A。元素B和元素C的标识未在非传输BSSID轮廓N子元素的非继承元素中列出，表示AP N提供元素B和元素C，且元素B和元素C的值分别与管理帧帧体中元素B和元素C的值相同。
此外，出现在管理帧帧体中的元素D和元素E也出现在了非传输BSSID轮廓N子元素中，表示AP N提供的元素D和元素E的值分别与管理帧帧体中元素D和元素E的值不同。未出现在管理帧帧体中的元素G出现在非传输BSSID轮廓N子元素中，表示AP N可以提供管理帧帧体中不出现的元素G。
基本变体多链路元素包括元素ID(Element ID)字段、长度(length)字段、扩展元素ID(Element ID Extension)、多链路控制字段(Multi-Link Control)、通用信息域(Common Info field)、以及每站点轮廓x(Pre-STA Profile x)子元素。该每站点轮廓x子元素对应AP x，AP x与AP N隶属于同一AP MLD，例如上述AP MLD A。即，AP x为与非传输BSSID对应的AP(AP N)隶属于同一AP MLD的AP。
每站点轮廓x子元素包括子元素ID(Subelement ID)字段、长度(length)字段、以及数据(data)字段。数据字段包括STA控制(STA Control)字段、STA信息(STA Info)字段、元素B、元素G、非继承元素。
其中，相比于非传输BSSID轮廓N子元素，元素C、元素D、和元素E均没有出现在每站点轮廓x子元素中，且元素C和元素D的标识没有在每站点轮廓x子元素的非继承元素中列出，表示AP x从非传输BSSID继承元素C和元素D，即AP x提供元素C和元素D的信息，且AP x提供的元素C和元素D的值分别与AP N提供的元素C和元素D的值相同。元素E的标识在非传输BSSID轮廓N子元素的非继承元素中列出，表示AP x无需提供或无法提供元素E的信息。
此外，出现在非传输BSSID轮廓N子元素中的元素G也出现在了每站点轮廓x子元素中，表示AP x提供的元素G的值与AP N提供的元素G的值不同。每站点轮廓x子元素中出现元素B表示AP x提供的元素B的值与AP N提供的元素B的值不同。
其中，图3所示相关字段的含义可参考802.11be标准中的相关说明，在此不再赘述。
如背景技术所述，在上述继承性规则中，非传输BSSID未从传输BSSID继承的某个元素，例如图3所示的元素A，在每站点轮廓子元素中的设置形式是目前亟待解决的问题。基于此，本申请提供一种元素继承方法，该方法用于解决非传输BSSID未从传输BSSID继承的某个元素在每站点轮廓子元素中的设置问题，能够节省信令开销或显式指示每站点轮廓子元素对应的AP不继承该元素。
本申请提供的方法可以适用于无线保真(wireless fidelity，Wi-Fi)场景或WLAN场景，例如可以适用于IEEE 802.11系统标准，例如802.11a/b/g标准、802.11n标准、802.11ac标准、802.11ax标准，或其下一代(例如802.11be标准)或更下一代的标准中。或者，本申请实施例可以适用于物联网(internet of things，IoT)或车联网(vehicle to X，V2X)等无线局域网系统中。当然，本申请实施例还可以适用于其他可能的通信系统，例如，长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、以及第五代(5th generation，5G)通信系统等。
其中，上述适用本申请的通信系统仅是举例说明，适用本申请的通信系统不限于此，在此统一说明，以下不再赘述。
参见图4，为本申请提供一种本申请实施例适用的WLAN通信系统，该WLAN通信系统包括第一接入点401和站点402。进一步的，该WLAN通信系统还包括第三接入点403和第二接入点404(图4中未示出)。
其中，第一接入点401和第三接入点403处于第一多BSSID集合中，第一接入点401作为第一多BSSID集合中的传输BSSID对应的AP，第三接入点403作为第一多BSSID集合中的非传输BSSID对应的AP。
此外，第三接入点403和第二接入点404隶属于同一AP MLD(记为第一AP MLD)，或者说，第三接入点403和第二接入点404是同一个AP MLD的隶属接入点。
可选的，第一接入点401可以是隶属于第二AP MLD的AP，该第二AP MLD不是所述第一AP MLD。或者，第一接入点可以是独立的AP，即第一接入点不隶属于任何AP MLD。
可选的，第二接入点404可以处于第二多BSSID集合中，第二多BSSID集合与第一BSSID集合不同。第二接入点404可以是第二多BSSID集合中的传输BSSID对应的AP，或者，可以是第二多BSSID集合中的非传输BSSID对应的AP，本申请对此不作具体限定。
本申请涉及的站点402可以为无线通讯芯片、无线传感器或无线通信终端。例如支持Wi-Fi通讯功能的用户终端、用户装置，接入装置，订户站，订户单元，移动站，用户代理，用户装备。其中，用户终端可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、物联网(internet of things，IoT)设备、计算设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(user equipment，UE)，移动台(mobile station，MS)，终端(terminal)，终端设备(terminal equipment)，便携式通信设备，手持机，便携式计算设备，娱乐设备，游戏设备或系统，全球定位系统设备或被配置为经由无线介质进行网络通信的任何其他合适的设备等。此外，STA可以支持802.11be制式或者802.11be的下一代WLAN制式。STA也可以支持802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a等多种WLAN制式。
本申请实施例涉及的接入点(例如第一接入点401、第二接入点404、或第三接入点403)可以为一种部署在无线通信网络中为其关联的STA提供无线通信功能的装置，主要部署于家庭、大楼内部以及园区内部，典型覆盖半径为几十米至上百米，当然，也可以部署于户外。接入点相当于一个连接有线网和无线网的桥梁，主要作用是将各个无线网络客户端连接到一起，然后将无线网络接入以太网。具体的，接入点可以是带有Wi-Fi芯片的基站、路由器、网关、中继器，通信服务器，交换机或网桥等通信设备，其中，所述基站可以包括各种形式的宏基站，微基站，中继站等。此外，接入点可以支持802.11be制式或者802.11be的下一代WLAN制式。接入点也可以支持802.11ax、802.11ac、802.11n、802.11g、802.11b及802.11a等WLAN制式。
下面将结合说明书附图，以图4所示的第一接入点401与站点402进行交互为例，对本申请实施例提供的元素继承方法进行展开说明。
可以理解的，本申请实施例中，执行主体可以执行本申请实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请实施例还可以执行其它操作或者各种操作的变 形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部操作。
需要说明的是，本申请下述实施例中，除特殊说明外，传输BSSID指第一多BSSID集合中的传输BSSID，非传输BSSID指该第一多BSSID集合中的非传输BSSID。
请参见图5，为本申请实施例提供的元素继承方法的流程示意图，该元素继承方法包括如下步骤：
S501、第一接入点生成管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素。如上图4相关的说明所述，传输BSSID对应的元素即为第一接入点提供的元素。
可选的，该传输BSSID对应的元素也可以称为管理帧携带的元素，或携带在管理帧中的元素(an element that is carried in a Management frame)。
其中，多BSSID元素包括非传输BSSID轮廓子元素，该非传输BSSID轮廓子元素包括非继承元素。该非传输BSSID轮廓子元素对应第三接入点，第三接入点对应非传输BSSID，或者说第三接入点为非传输BSSID对应的AP。
可选的，非传输BSSID轮廓子元素中出现的元素可以理解为第三接入点提供的元素。非传输BSSID轮廓子元素的非继承元素中列出的标识所指示的元素可以理解为第三接入点无法提供或无需提供的元素。
其中，非传输BSSID轮廓子元素包括基本变体多链路元素，该基本变体多链路元素包括每站点轮廓子元素，该每站点轮廓子元素包括非继承元素。该每站点轮廓子元素对应第二接入点。如上图4相关的说明所述，第二接入点和第三接入点隶属于同一个AP MLD。
需要说明的是，该基本变体多链路元素可以包括多个每站点轮廓子元素，每个轮廓子元素对应一个第二接入点，且不同每站点轮廓子元素对应不同的第二接入点，各个每站点轮廓子元素对应的第二接入点可以通过该每站点轮廓子元素中的STA控制字段指示。本申请以一个每站点轮廓子元素为例进行说明，且本申请提供的该每站点轮廓子元素的特征适用于基本变体多链路元素包括的各个每站点轮廓子元素。
可选的，每站点轮廓子元素中出现的元素可以理解为第二接入点提供的元素。每站点轮廓子元素的非继承元素中列出的标识所指示的元素可以理解为第二接入点无法提供或无需提供的元素。
其中，传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下，第一元素在每站点轮廓子元素中的设置存在如下两种方式：
方式一、当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识。
可选的，第二接入点不继承第一元素，可以理解为：第二接入点无法提供或无需提供第一元素或第一元素的信息。
可选的，第二接入点不继承第一元素可以包括第二接入点不从传输BSSID继承第一元素。
在一些实施例中，本申请中的管理帧可以称为第一层，非传输BSSID轮廓子元素可以称为第二层，每站点轮廓子元素可以称为第三层。
换言之，该方式一也可以描述为：出现在第一层的第一元素未出现在第二层，且第二层的不继续元素列出该第一元素的标识的情况下，若第三层对应的接入点(即第二接入点)无需或无法提供第一元素或第一元素的信息，那么第三层的非继承元素中列出第一元素的标识。
示例性的，如图6所示，传输BSSID对应的元素包括元素A，非传输BSSID轮廓子元素的非继承元素列出元素A的标识，即非传输BSSID未从传输BSSID继承元素A，则每站点轮廓子元素的非继承元素列出第一元素的标识，以指示第二接入点不继承元素A。其中，图6中其他元素的继承性可参考上述图3所示的相关说明，在此不再赘述。
图6所示的示例中，第二层未从第一层继承的元素为元素A，第三层未继承的元素包括元素A和元素E，在第三层的非继承元素中列出了元素A和元素E的标识。也就是说，本申请中，在第二层未继承的元素和第三层未继承的元素不完全相同或完全不同的情况下，第三层的非继承元素中列出第三层未继承的所有元素的标识。
或者，示例性的，如图7a所示，传输BSSID对应的元素包括元素A，非传输BSSID轮廓子元素的非继承元素列出元素A的标识，即非传输BSSID未从传输BSSID继承元素A，并且第二接入点从非传输BSSID继承元素E，即出现在第二层的元素E未在第三层出现，且第三层的非继承元素未列出该元素E的标识，则每站点轮廓子元素的非继承元素列出第一元素的标识，以指示第二接入点不继承元素A。
图7a所示的示例中，第二层未从第一层继承的元素为元素A，第三层未继承的元素也为元素A，在第三层的非继承元素中列出了元素A的标识。也就是说，本申请中，在第二层未继承的元素和第三层未继承的元素完全相同的情况下，第三层的非继承元素中仍需列出第三层未继承的所有元素的标识。该场景下，可以认为非继承元素不具有继承性，因为在第三层的非继承元素和第二层的非继承元素相同时，第三层仍然携带非继承元素。
方式二、当第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
本申请中，第二接入点从传输BSSID对应的元素继承第一元素，也可以描述为：第二接入点从传输BSSID继承第一元素，二者可以相互替换。
可选的，第二接入点从传输BSSID对应的元素继承第一元素，可以理解为：第二接入点提供第一元素，且第二接入点提供的第一元素的值与传输BSSID对应的第一元素的值相同，或者说与第一接入点提供的第一元素的值相同。
示例性的，在该方式二下，如图3所示的示例性中，第一元素可以为元素A，则图3所示的帧结构可以理解为：每站点轮廓子元素对应的AP从传输BSSID对应的元素中继承元素A。
也就是说，出现在第一层的第一元素未出现在第二层，且第二层的不继续元素列出该第一元素的标识的情况下，若第三层对应的接入点(即第二接入点)提供该第一元素，且第二接入点提供的第一元素的值与第一层出现的第一元素的值相同，那么该第一元素可以不在第三层中出现，且第三层的非继承元素中不列出第一元素的标识。该场景下，可以认为第三层和第一层之间存在继承性。
方式三、第二接入点提供的第一元素的值与传输BSSID对应的第一元素的值不同时，每站点轮廓子元素中出现第一元素。
可以理解的，每站点轮廓子元素中出现的第一元素的值为第二接入点提供的第一元素的值。
示例性的，如图7b所示，非传输BSSID未从传输BSSID继承的第一元素为元素A，若第二接入点提供元素A，且第二接入点提供的元素A的值传输BSSID对应的第一元素的值不同，那么没站点轮廓子元素中出现元素A。
也就是说，出现在第一层的第一元素未出现在第二层，且第二层的不继续元素列出该第一元素的标识的情况下，若第三层对应的接入点(即第二接入点)提供该第一元素，且第二接入点提供的第一元素的值与第一层出现的第一元素的值不同，那么该第一元素可以在第三层中出现。
可选的，该管理帧可以为探测响应(probe response)帧。当然，该管理帧也可以为其他类型的管理帧，本申请对管理帧的类型不作具体限定。
S502、第一接入点向站点发送管理帧。相应的，站点接收来自第一接入点的管理帧。
可选的，第一接入点可以通过单播或组播的方向站点发送该管理帧，本申请对此不作具体限定。
S503、站点解析管理帧。
作为一种可能的实现，站点解析管理帧具体可以包括：传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当每站点轮廓子元素的非继承元素列出第一元素的标识时，该站点确定第二接入点不继承第一元素。
也就是说，出现在第一层的元素未出现在第二层，且第二层的非继承元素列出该第一元素的标识的情况下，若第三层的非继承元素中列出第一元素的标识，那么站点确定第三层对应的接入点(即第二接入点)无需或无法提供第一元素或第一元素的信息。
示例性的，若该管理帧的结构如图6所示，则该站点可以确定第二接入点无需或无法提供第一元素或第一元素的信息。
作为另一种可能的实现，站点解析管理帧具体可以包括：传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，该站点确定第二接入点从传输BSSID对应的元素继承第一元素。
也就是说，出现在第一层的第一元素未出现在第二层，且第二层的不继续元素列出该第一元素的标识的情况下，若该第一元素不在第三层中出现，且第三层的非继承元素中未列出第一元素的标识，那么该站点可以确定第三层对应的接入点(即第二接入点)提供该第一元素，且第二接入点提供的第一元素的值与第一层出现的第一元素的值相同。
示例性的，若该管理帧的结构如图3所示，则该站点可以确定第二接入点提供第一元素，且第二接入点提供的第一元素的值与第一层出现的第一元素的值相同。
基于该方案，对于非传输BSSID未从传输BSSID继承的第一元素，在每站点轮廓子元素的非继承元素中列出该第一元素的标识，能够直接地、显式地指示每站点轮廓子元素对应的接入点不继承该第一元素，从而使得站点获知每站点轮廓子元素对应的接入点不提供第一元素。
或者，在每站点轮廓子元素对应的接入点提供第一元素，且值与传输BSSID对应的第一元素的值相同时，每站点轮廓子元素中可以不出现第一元素且每站点轮廓子元素 的非继承元素中不列出第一元素的标识，以指示每站点轮廓子元素对应的接入点从传输BSSID对应的元素继承第一元素，相比于每站点轮廓子元素对应的接入点只能从非传输BSSID继承元素的方案，可以不在每站点轮廓子元素中出现第一元素，从而可以节省该第一元素占用的信令开销。
在一些实施例中，上述传输BSSID、非传输BSSID、第二接入点之间还可以具有以下至少一项继承性关系：
1、传输BSSID对应的元素包括第二元素，非传输BSSID轮廓子元素中出现第二元素，且传输BSSID对应的第二元素和非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：
当第二接入点从非传输BSSID继承第二元素时，每站点轮廓子元素中不出现第二元素以及每站点轮廓子元素的非继承元素不列出所述第二元素的标识。其中，该非传输BSSID对应第三接入点，第三接入点对应非传输BSSID轮廓子元素。
也就是说，第一层和第二层均出现第二元素，且第一层出现的第二元素和第二层出现的第二元素的值不同的情况下，当第二接入点从非传输BSSID继承第二元素时，第三层可以不出现第二元素，且第三层的不继承子元素中不列出第二元素的标识。
示例性的，如图6所示，第二元素可以为元素D，在第一层和第二层均出现元素D，第二接入点从非传输BSSID继承第二元素时，第三层不出现第二元素，且第三层的不继承子元素中不列出第二元素的标识。相应的，在场景下，对于站点来说，该方法还可以包括：传输BSSID对应的元素包括第二元素，非传输BSSID轮廓子元素中出现第二元素，且传输BSSID对应的第二元素和非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：
当每站点轮廓子元素中不出现第二元素以及每站点轮廓子元素的非继承元素不列出第二元素的标识时，该站点确定第二接入点从非传输BSSID继承第二元素，即确定第二接入点提供第二元素，且第二接入点提供的第二元素的值与第三接入点提供的第二元素的值相同。
2、在非传输BSSID轮廓子元素中出现第三元素的情况下：当第二接入点不继承第三元素时，每站点轮廓子元素的非继承元素列出第三元素的标识；或者，当第二接入点从非传输BSSID继承第三元素时，每站点轮廓子元素中不出现第三元素以及每站点轮廓子元素的非继承元素不列出第三元素的标识。
也就是说，第二层出现第三元素的情况下：当第二接入点不继承第三元素时，第三层的非继承元素列出该第三元素的标识；或者，当第二接入点从非传输BSSID继承第三元素时，第三层中可以不出现第三元素以及第三层的非继承元素不列出第三元素的标识。
示例性的，如图6所示，第三元素可以为元素E，第二层出现元素E，第二接入点不继承元素E时，第三层的非继承元素列出了元素E的标识。或者，如图8所示，第三元素可以为元素G，第二接入点从非传输BSSID继承第三元素时，第三层不出现元素G以及第三层的非继承元素不列出元素G的标识。
相应的，在场景下，对于站点来说，该方法还可以包括：非传输BSSID轮廓子元素中出现第三元素的情况下：当每站点轮廓子元素的非继承元素列出第三元素的标识时，该站点确定第二接入点不继承第三元素，即确定第二接入点不提供第三元素或第三元素的信息；或者，当每站点轮廓子元素中不出现第三元素以及每站点轮廓子元素的非继承元素不列出第三元素的标识时，该站点确定第二接入点从非传输BSSID继承第三元素，即确定第二接入点提供第三元素，且第二接入点提供的第三元素的值与第三接入点提供的第三元素的值相同。
可以理解的是，对于该关系2，每站点轮廓子元素中是否出现第三元素与传输BSSID对 应的元素是否包括第三元素无关，即无论传输BSSID对应的元素是否包括第三元素，该关系2均适用。
此外，本申请还提供一种元素继承性规则，该规则可以包括：非传输BSSID未从传输BSSID继承的元素，与第二接入点未继承的元素完全相同时，每站点轮廓子元素不出现非继承元素。也就是说，第二层的非继承元素中列出的标识所指示的元素，与第二接入点未继承的元素完全相同时，第三层不出现非继承元素。
可选的，每站点轮廓子元素不出现非继承元素，可以理解为：每站点轮廓子元素继承非传输BSSID的非继承元素，即每站点轮廓子元素的非继承元素和非传输BSSID轮廓子元素的非继承元素相同。该场景下，可以认为非继承元素具有继承性。
可选的，第二接入点未继承的元素可以理解为第二接入点无需提供或无法提供的元素，可以相互替换。
示例性的，如图9所示，第二层的非继承元素中列出元素A的标识，表示非传输BSSID未从传输BSSID继承元素A，当第二接入点未继承的元素也为元素A时，每站点轮廓子元素不包括非继承元素。可以理解的是，图9所示的示例中，第二接入点从非传输BSSID继承元素E。
可选的，该规则还可以包括：非传输BSSID未从传输BSSID继承的元素，与第二接入点未继承的元素不完全相同或完全不同时，每站点轮廓子元素的非继承元素中列出第二接入点未继承的所有元素的标识。
也就是说，第二层的非继承元素中列出的标识所指示的元素，与第二接入点未继承的元素不完全相同或完全不同时，第三层的非继承元素中列出第二接入点未继承的所有元素的标识。
示例性的，如图10所示，第二层的非继承元素中列出元素A的标识，标识非传输BSSID未从传输BSSID继承元素A，当第二接入点未继承的元素包括元素A、元素E、以及元素G时，每站点轮廓子元素的非继承元素中列出元素A、元素E、以及元素G的标识。
可选的，该规则还可以包括：非传输BSSID未从传输BSSID继承的元素，与第二接入点需要提供的元素相同时，每站点轮廓子元素中出现该元素。该场景下可以认为元素继承的顺序为从传输BSSID到非传输BSSID，且从非传输BSSID到每站点轮廓子元素对应的接入点，传输BSSID到每站点轮廓子元素对应的接入点之间不存在继承关系。
也就是说，第一层出现的元素未在第二层出现，且第二层的非继承元素列出该元素的标识的情况下，若第二接入点需要提供该元素，那么第三层中出现该元素。
可选的，第二接入点提供的该元素的值与传输BSSID对应的该元素的值可以相同或不同，本申请对此不作具体限定。
示例性的，如图11所示，第二层的非继承元素中列出元素A的标识，标识非传输BSSID未从传输BSSID继承元素A，当第二接入点需要提供该元素A时，第三层出现该元素A。可以理解的是，图11所示的示例中，第二接入点不继承元素E。
以上介绍了本申请实施例的元素继承方法，以下介绍本申请实施例的通信装置，本申请实施例的通信装置包括应用于发送端的通信装置和应用于接收端的通信装置，应理解，所述应用于发送端的通信装置即为上述方法中的第一接入点，其具有上述方法中第一接入点的任意功能，所述应用于接收端的通信装置即为上述方法中的站点，其具有上述方法中站点的任意功能。
如图12所示，应用于发送端的通信装置，包括：处理模块和收发模块。
处理模块，用于生成管理帧；收发模块，用于发送管理帧。该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点；
其中，传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；当第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
应理解，本申请实施例提供的应用于发送端的通信装置即为上述方法中的第一接入点，其具有上述方法中第一接入点的任意功能，具体细节可参见上述方法，此处不再赘述。
如图13所示，应用于接收端的通信装置，包括：处理模块和收发模块。
收发模块，用于接收来自第一接入点的管理帧，管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。
处理模块，用于在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当每站点轮廓子元素的非继承元素列出第一元素的标识时，确定第二接入点不继承第一元素；当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，确定第二接入点从传输BSSID对应的元素继承第一元素。
应理解，本申请实施例提供的应用于发送端的通信装置即为上述方法中的站点，其具有上述方法中站点的任意功能，具体细节可参见上述方法，此处不再赘述。
以上介绍了本申请实施例的应用于发送端的通信装置和应用于接收端的通信装置，以下介绍所述应用于发送端的通信装置和所述应用于接收端的通信装置可能的产品形态。应理解，但凡具备上述图12所述的应用于发送端的通信装置的特征的任何形态的产品，和但凡具备上述图13所述应用于接收端的通信装置的特征的任何形态的产品，都落入本申请的保护范围。还应理解，以下介绍仅为举例，不限制本申请实施例的应用于发送端的通信装置的产品形态和应用于接收端的通信装置的产品形态仅限于此。
作为一种可能的产品形态，本申请实施例所述的应用于发送端的通信装置和应用于接收端的通信装置，可以由一般性的总线体系结构来实现。
所述应用于发送端的通信装置，包括处理器和与所述处理器内部连接通信的收发器；所述处理器用于生成管理帧；所述收发器用于发送该管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；当第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
可选地，所述应用于发送端的通信装置还可以包括存储器，所述存储器用于存储处理器执行的指令。
所述应用于接收端的通信装置，包括处理器和与所述处理器内部连接通信的收发器；所述收发器用于接收管理帧；所述处理器用于解析该管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。所述处理器，具体用于在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当每站点轮廓子元素的非继承元素列出第一元素的标识时，确定第二接入点不继承第一元素；当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，确定第二接入点从传输BSSID对应的元素继承第一元素。
可选地，所述应用于接收端的通信装置还可以包括存储器，所述存储器用于存储处理器执行的指令。
作为一种可能的产品形态，本申请实施例所述的应用于发送端的通信装置和应用于接收端的通信装置，可以由通用处理器来实现。
实现所述应用于发送端的通信装置的通用处理器包括处理电路和与所述处理电路内部连接通信的输出接口。所述处理电路用于生成管理帧；所述输出接口用于发送该管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当第二接入点不继承第一元素时，每站点轮廓子元素的非继承元素列出第一元素的标识；当第二接入点从传输BSSID对应的元素继承第一元素时，每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识。
可选地，该通用处理器还可以包括存储介质，所述存储介质用于存储处理电路执行的指令。
实现所述应用于接收端的通信装置的通用处理器包括处理电路和与所述处理电路内部连接通信的输入接口。所述输入接口用于接收管理帧；所述处理电路用于解析该管理帧。
其中，该管理帧包括多BSSID元素和传输BSSID对应的元素，多BSSID元素包括非传输BSSID轮廓子元素，非传输BSSID轮廓子元素包括基本变体多链路元素，基本变体多链路元素包括每站点轮廓子元素，每站点轮廓子元素对应第二接入点。所述处理电路，具体用于在传输BSSID对应的元素包括第一元素，且非传输BSSID轮廓子元素的非继承元素列出第一元素的标识的情况下：当每站点轮廓子元素的非继承元素列出第一元素的标识时，确定第二接入点不继承第一元素；当每站点轮廓子元素中不出现第一元素以及每站点轮廓子元素的非继承元素不列出第一元素的标识时，确定第二接入点从传输BSSID对应的元素继承第一元素。
可选地，该通用处理器还可以包括存储介质，所述存储介质用于存储处理电路执行的指令。
作为一种可能的产品形态，本申请实施例所述的应用于发送端的通信装置和应用于接收端的通信装置，还可以使用下述来实现：一个或多个现场可编程门阵列(field- programmable gate array，FPGA)、可编程逻辑器件(programmable logic device，PLD)、控制器、状态机、门逻辑、分立硬件部件、任何其它适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。
应理解，上述各种产品形态的应用于发送端的通信装置和应用于接收端的通信装置，分别具有上述方法实施例中第一接入点和站点的任意功能，此处不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例中描述的各方法步骤和单元，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各实施例的步骤及组成。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。本领域普通技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参见前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (18)

  1. 一种元素继承方法，其特征在于，所述方法包括：
    第一接入点生成管理帧，所述管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，所述多BSSID元素包括非传输BSSID轮廓子元素，所述非传输BSSID轮廓子元素包括基本变体多链路元素，所述基本变体多链路元素包括每站点轮廓子元素，所述每站点轮廓子元素对应第二接入点；其中，所述传输BSSID对应的元素包括第一元素，且所述非传输BSSID轮廓子元素的非继承元素列出所述第一元素的标识的情况下：
    当所述第二接入点不继承所述第一元素时，所述每站点轮廓子元素的非继承元素列出所述第一元素的标识；
    当所述第二接入点从所述传输BSSID对应的元素继承所述第一元素时，所述每站点轮廓子元素中不出现所述第一元素以及所述每站点轮廓子元素的非继承元素不列出所述第一元素的标识；
    所述第一接入点发送所述管理帧。
  2. 根据权利要求1所述的方法，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；所述传输BSSID对应的元素包括第二元素，所述非传输BSSID轮廓子元素中出现第二元素，且所述传输BSSID对应的第二元素和所述非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：
    当所述第二接入点从所述非传输BSSID继承所述第二元素时，所述每站点轮廓子元素中不出现所述第二元素以及所述每站点轮廓子元素的非继承元素不列出所述第二元素的标识。
  3. 根据权利要求1或2所述的方法，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；所述非传输BSSID轮廓子元素中出现第三元素的情况下：
    当所述第二接入点不继承所述第三元素时，所述每站点轮廓子元素的非继承元素列出所述第三元素的标识；
    当所述第二接入点从所述非传输BSSID继承所述第三元素时，所述每站点轮廓子元素中不出现所述第三元素以及所述每站点轮廓子元素的非继承元素不列出所述第三元素的标识。
  4. 一种元素继承方法，其特征在于，所述方法包括：
    站点接收来自第一接入点的管理帧，所述管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，所述多BSSID元素包括非传输BSSID轮廓子元素，所述非传输BSSID轮廓子元素包括基本变体多链路元素，所述基本变体多链路元素包括每站点轮廓子元素，所述每站点轮廓子元素对应第二接入点；其中，所述传输BSSID对应的元素包括第一元素，且所述非传输BSSID轮廓子元素的非继承元素列出所述第一元素的标识的情况下：
    当所述每站点轮廓子元素的非继承元素列出所述第一元素的标识时，所述站点确定所述第二接入点不继承所述第一元素；
    当所述每站点轮廓子元素中不出现所述第一元素以及所述每站点轮廓子元素的非继承元素不列出所述第一元素的标识时，所述站点确定所述第二接入点从所述传输BSSID对应的元素继承所述第一元素。
  5. 根据权利要求4所述的方法，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；所述方法还包括：所述传输BSSID对应的元素包括第二元素，所述非传输BSSID轮廓子元素中出现第二元素，且所述传输BSSID对应的第二元素和所述非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：
    当所述每站点轮廓子元素中不出现所述第二元素以及所述每站点轮廓子元素的非继承元素不列出所述第二元素的标识时，所述站点确定所述第二接入点从所述非传输BSSID继承所述第二元素。
  6. 根据权利要求4或5所述的方法，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；所述方法还包括：所述非传输BSSID轮廓子元素中出现第三元素的情况下：
    当所述每站点轮廓子元素的非继承元素列出所述第三元素的标识时，所述站点确定所述第二接入点不继承所述第三元素；
    当所述每站点轮廓子元素中不出现所述第三元素以及所述每站点轮廓子元素的非继承元素不列出所述第三元素的标识时，所述站点确定所述第二接入点从所述非传输BSSID继承所述第三元素。
  7. 一种第一接入点，其特征在于，所述第一接入点包括：处理模块和收发模块；
    所述处理模块，用于生成管理帧，所述管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，所述多BSSID元素包括非传输BSSID轮廓子元素，所述非传输BSSID轮廓子元素包括基本变体多链路元素，所述基本变体多链路元素包括每站点轮廓子元素，所述每站点轮廓子元素对应第二接入点；其中，所述传输BSSID对应的元素包括第一元素，且所述非传输BSSID轮廓子元素的非继承元素列出所述第一元素的标识的情况下：
    当所述第二接入点不继承所述第一元素时，所述每站点轮廓子元素的非继承元素列出所述第一元素的标识；
    当所述第二接入点从所述传输BSSID对应的元素继承所述第一元素时，所述每站点轮廓子元素中不出现所述第一元素以及所述每站点轮廓子元素的非继承元素不列出所述第一元素的标识；
    所述收发模块，用于发送所述管理帧。
  8. 根据权利要求7所述的第一接入点，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；所述传输BSSID对应的元素包括第二元素，所述非传输BSSID轮廓子元素中出现第二元素，且所述传输BSSID对应的第二元素和所述非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：
    当所述第二接入点从所述非传输BSSID继承所述第二元素时，所述每站点轮廓子元素中不出现所述第二元素以及所述每站点轮廓子元素的非继承元素不列出所述第二元素的标识。
  9. 根据权利要求7或8所述的第一接入点，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；所述非传输BSSID轮廓子元素中出现第三元素的情况下：
    当所述第二接入点不继承所述第三元素时，所述每站点轮廓子元素的非继承元素列出所述第三元素的标识；
    当所述第二接入点从所述非传输BSSID继承所述第三元素时，所述每站点轮廓子元素中不出现所述第三元素以及所述每站点轮廓子元素的非继承元素不列出所述第三元素的标识。
  10. 一种站点，其特征在于，所述站点包括：处理模块和收发模块；
    所述收发模块，用于接收来自第一接入点的管理帧，所述管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，所述多BSSID元素包括非传输BSSID轮廓子元素，所述非传输BSSID轮廓子元素包括基本变体多链路元素，所述基本变体多链路元素包括每站点轮廓子元素，所述每站点轮廓子元素对应第二接入点；
    所述处理模块，用于在所述传输BSSID对应的元素包括第一元素，且所述非传输BSSID轮廓子元素的非继承元素列出所述第一元素的标识的情况下：
    当所述每站点轮廓子元素的非继承元素列出所述第一元素的标识时，确定所述第二接入点不继承所述第一元素；
    当所述每站点轮廓子元素中不出现所述第一元素以及所述每站点轮廓子元素的非继承元素不列出所述第一元素的标识时，确定所述第二接入点从所述传输BSSID对应的元素继承所述第一元素。
  11. 根据权利要求10所述的站点，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；
    所述处理模块，还用于在所述传输BSSID对应的元素包括第二元素，所述非传输BSSID轮廓子元素中出现第二元素，且所述传输BSSID对应的第二元素和所述非传输BSSID轮廓子元素中出现的第二元素的值不同的情况下：
    当所述每站点轮廓子元素中不出现所述第二元素以及所述每站点轮廓子元素的非继承元素不列出所述第二元素的标识时，确定所述第二接入点从所述非传输BSSID继承所述第二元素。
  12. 根据权利要求10或11所述的站点，其特征在于，所述非传输BSSID轮廓子元素对应第三接入点，所述第三接入点对应非传输BSSID；所述处理模块，还用于在所述非传输BSSID轮廓子元素中出现第三元素的情况下：
    当所述每站点轮廓子元素的非继承元素列出所述第三元素的标识时，确定所述第二接入点不继承所述第三元素；
    当所述每站点轮廓子元素中不出现所述第三元素以及所述每站点轮廓子元素的非继承元素不列出所述第三元素的标识时，确定所述第二接入点从所述非传输BSSID继承所述第三元素。
  13. 一种第一接入点，其特征在于，所述第一接入点包括：处理电路以及与所述处理电路内部连接通信的输出接口；
    所述处理电路，用于生成管理帧，所述管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，所述多BSSID元素包括非传输BSSID轮廓子元素，所述非传输BSSID轮廓子元素包括基本变体多链路元素，所述基本变体多链路元素包括每站点轮廓子元素，所述每站点轮廓子元素对应第二接入点；其中，所述传输BSSID对应的元素包括第一元素，且所述非传输BSSID轮廓子元素的非继承元素列出所述第一元素的标识的情况下：
    当所述第二接入点不继承所述第一元素时，所述每站点轮廓子元素的非继承元素列出所述第一元素的标识；
    当所述第二接入点从所述传输BSSID对应的元素继承所述第一元素时，所述每站点轮廓子元素中不出现所述第一元素以及所述每站点轮廓子元素的非继承元素不列出所述第一元素的标识；
    所述输出接口，用于发送所述管理帧。
  14. 一种站点，其特征在于，所述站点包括：处理电路以及与所述处理电路内部连接通信的输入接口；
    所述输入接口，用于接收来自第一接入点的管理帧，所述管理帧包括多基本服务集标识BSSID元素和传输BSSID对应的元素，所述多BSSID元素包括非传输BSSID轮廓子元素，所述非传输BSSID轮廓子元素包括基本变体多链路元素，所述基本变体多链路元素包括每站 点轮廓子元素，所述每站点轮廓子元素对应第二接入点；
    所述处理电路，用于在所述传输BSSID对应的元素包括第一元素，且所述非传输BSSID轮廓子元素的非继承元素列出所述第一元素的标识的情况下：
    当所述每站点轮廓子元素的非继承元素列出所述第一元素的标识时，确定所述第二接入点不继承所述第一元素；
    当所述每站点轮廓子元素中不出现所述第一元素以及所述每站点轮廓子元素的非继承元素不列出所述第一元素的标识时，确定所述第二接入点从所述传输BSSID对应的元素继承所述第一元素。
  15. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序包括用于执行权利要求1-3任一项方法的指令。
  16. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序包括用于执行权利要求4-6任一项方法的指令。
  17. 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用于执行权利要求1-3任一项方法的指令。
  18. 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用于执行权利要求4-6任一项方法的指令。
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