CN113452416B - Method, device and storage medium for associating access point equipment - Google Patents

Method, device and storage medium for associating access point equipment Download PDF

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Publication number
CN113452416B
CN113452416B CN202010215260.6A CN202010215260A CN113452416B CN 113452416 B CN113452416 B CN 113452416B CN 202010215260 A CN202010215260 A CN 202010215260A CN 113452416 B CN113452416 B CN 113452416B
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panel
access point
point device
antenna
frame
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CN113452416A (en
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闫中江
杨懋
狐梦实
于健
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2021/082352 priority patent/WO2021190492A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a method, a device and a storage medium for associating access point equipment, and belongs to the technical field of communication. In the present application, the station device may send an association request frame to the access point device after receiving the beacon frame broadcast by the access point device through the plurality of antenna panels, and the access point device may send an association response frame to the station device to associate the station device. The association request frame carries preference panel information and is used for indicating an antenna panel used when the access point equipment is expected to serve the site equipment, and the association response frame is used for indicating an antenna panel actually used when the access point equipment serves the site equipment. Therefore, in the association process, the station device can propose a suggestion to the access point device, and the access point device can respond to the suggestion, so that the access point device can use a proper antenna panel to serve the station device after association, thereby fully utilizing the capability of the multi-antenna panel, realizing efficient data transmission and improving throughput.

Description

Method, device and storage medium for associating access point equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a storage medium for associating access point devices.
Background
Currently, the 802.11 standard is being discussed for the next generation of extremely high throughput (extremely high throughput, EHT) for 802.11ax, taking into account the introduction of more spatial streams. That is, throughput is improved by increasing spatial streams. However, in order to support more spatial streams, the access point device needs to install more antennas, however, it is difficult to install more antennas on existing access point devices due to the product specifications and size scale of the access point device.
In the related art, a multiple input multiple output (multi input multi output, MIMO) technology based on a multiple antenna panel is proposed, by which a plurality of antenna panels, each equipped with a plurality of antennas, can be assembled on one access point device, thereby forming one access point device with multiple antenna panels. However, after the access point device with the multi-antenna panel is introduced, how to associate the access point device with the multi-antenna panel to make full use of the capability of the multi-antenna panel, so as to realize efficient data transmission, and improving throughput is an important problem to be solved currently.
Disclosure of Invention
The application provides a method, a device and a storage medium for associating access point equipment, which can associate the access point equipment with a multi-antenna panel and fully utilize the capability of the multi-antenna panel to improve throughput. The technical scheme is as follows:
In a first aspect, a method of associating an access point device is provided, the first access point device comprising a plurality of antenna panels, each of the plurality of antenna panels having a plurality of antennas disposed thereon, the method comprising: the first access point device broadcasting a beacon frame through the plurality of antenna panels; the first access point device receives an association request frame sent by the station device, wherein the association request frame carries preference panel information, the preference panel information is used for indicating one or more first antenna panels, the first antenna panels are antenna panels used when the first access point device is expected to serve the station device, and the preference panel information is determined by the station device according to the beacon frame; the first access point device sends an association response frame to the site device to associate the site device with the first access point device, the association response frame is used for indicating one or more second antenna panels, the second antenna panels are antenna panels actually used when the first access point device serves the site device, and the one or more second antenna panels are determined by the first access point device according to preference panel information.
In the present application, the first access point device may broadcast the beacon frame through multiple antenna panels, may broadcast periodically, or may broadcast periodically. After the first access point device broadcasts the beacon frame, the station device nearby may receive the beacon frame, and then the station device may send an association request frame to the first access point device to request to associate with the first access point device, and in the association process, propose an antenna panel suggestion to the first access point device, and then the first access point device may respond to the suggestion through an association response frame, and complete association between the station device and the first access point device.
Since there may be station apparatuses that do not support multi-antenna panel MIMO (MP MIMO) in the application scenario, in order to be able to be compatible with the station apparatuses that do not support MP MIMO and the station apparatuses that support MP MIMO, in the embodiment of the present application, the first station apparatus may be compatible with both station apparatuses through a broadcast beacon frame.
Optionally, the first access point device broadcasts the beacon frame through a plurality of antenna panels, including: the first access point device broadcasts a first beacon frame through one or more third antenna panels at a first moment, broadcasts a second beacon frame through one or more fourth antenna panels at a second moment, wherein the first beacon frame is a beacon frame which does not support MP MIMO, the second beacon frame is a beacon frame which supports MP MIMO, the first moment is the same as or different from the second moment, the third antenna panel is one antenna panel in the plurality of antenna panels, and the one or more fourth antenna panels are antenna panels in the plurality of antenna panels except the one or more third antenna panels; wherein the first beacon frame carries an identity (basic service set identity, BSSID) of the first basic service set, the first BSS is created by the one or more third antenna panels, the second beacon frame carries an identity of the second BSS, the identity of the second BSS being different from the identity of the first BSS, the second BSS being created by the one or more fourth antenna panels.
That is, in order to solve the compatibility problem, two kinds of beacon frames are designed in the present application, where the first beacon frame may be a legacy beacon frame (legacy beacon) for compatibility with a station device that does not support MP MIMO, the second beacon frame is a newly defined beacon frame for compatibility with a station device that supports MP MIMO, and a frame format of the second beacon frame may be different from that of the first beacon frame. In addition, the antenna panels broadcasting the two beacon frames are different, and the broadcasting time can be simultaneous broadcasting or time-division broadcasting.
In the application, after the first access point device broadcasts the beacon frame through the plurality of antenna panels, the station device may determine preference panel information according to the received beacon frame, carry the preference panel information in an association request frame, and send the association request frame to the first access point device, so as to propose to the first access point device an antenna panel that is expected to be used when the first access point device serves the station device. Since the station device may receive the beacon frames broadcast by all the antenna panels, or may receive only some of the beacon frames broadcast by the antenna panels, and the relevant information of the antenna panels carried in the beacon frames broadcast by the respective antenna panels may be different. Based on this, there are various implementations of the station device determining preference panel information from the beacon frame, two of which are described below.
In a first implementation manner, when the first access point device broadcasts a beacon frame through multiple antenna panels, the beacon frame broadcast by one antenna panel carries relevant information of the corresponding antenna panel, such as the identification of the antenna panel, whether other site devices are currently served, and so on. The station device may learn about the information about the antenna panel after receiving the beacon frame broadcast by the antenna panel. However, since the transmission angles, transmission powers, and the like of the respective antenna panels may be different, the station device may only receive the beacon frames broadcast by part of the antenna panels, and even if the station device receives the beacon frames broadcast by all the antenna panels, the station device cannot determine whether to receive the beacon frames broadcast by all the antenna panels of the first access point device, and cannot determine whether all the antenna panels can serve the first access point device. Based on this, the station apparatus can determine the preference panel information only from the information of the corresponding antenna panel carried in each received beacon frame.
In the embodiment of the present application, the station device may evaluate the corresponding antenna panels according to the received signal energy, signal angle, etc. of each beacon frame, and select one or more first antenna panels from the antenna panels corresponding to each beacon frame as the preference panel. The first antenna panel is one of the antenna panels corresponding to the beacon frames, and the first antenna panel is an antenna panel used when the first access point device is expected to serve the station device.
Optionally, the preference panel information includes an identification of one or more first antenna panels. That is, the association request frame carries only the selected individual preference panels.
Optionally, the preference panel information includes a fourth bit sequence, and the identifier of the antenna panel corresponding to each beacon frame received by the station device, where the fourth bit sequence includes a plurality of fourth bits, and the plurality of fourth bits corresponds to the antenna panel corresponding to each beacon frame received by the station device one to one, and a bit value on each fourth bit is used to indicate whether the corresponding antenna panel is the first antenna panel. That is, the association request frame carries the antenna panels corresponding to all the received beacon frames, and indicates whether each antenna panel is a preference panel with different bit values.
Optionally, the association request frame further carries signal energy indication information for indicating that the station apparatus receives signal energy of the beacon frame through each of the one or more first antenna panels.
In a second implementation manner, when the first access point device broadcasts a beacon frame through a plurality of antenna panels, the beacon frame broadcast by one antenna panel carries relevant information of all antenna panels, for example, information such as an identifier of each antenna panel in the plurality of antenna panels, whether other station devices are currently served by each antenna panel, and the like. After receiving the beacon frame broadcast by one antenna panel, the station device can acquire the relevant information of all antenna panels, and can also determine whether each antenna panel can serve the same. Based on this, the station apparatus can determine the preference panel information only from the relevant information of the plurality of antenna panels carried in the received beacon frame.
Optionally, the preference panel information includes a first bit sequence, the first bit sequence includes a plurality of first bits, the plurality of first bits are in one-to-one correspondence with the plurality of antenna panels, and a bit value on each of the first bits is used to indicate whether the corresponding antenna panel is the first antenna panel. That is, the association request frame carries the identities of the plurality of antenna panels on the first access point device and indicates with different bit values whether each antenna panel is a preference panel.
Optionally, in a second implementation, the association request frame may also carry signal energy indication information. The signal energy indication information may include signal energy of a beacon frame received by the station device through each antenna panel of the plurality of antenna panels, and the carrying manner of the signal energy indication information may refer to the first implementation manner.
In the present application, after receiving the association request frame carrying the preference panel information, the first access point device may determine the one or more second antenna panels after evaluating the one or more first antenna panels indicated by the preference panel information. That is, before the first access point device sends the association response frame to the station device, the method further includes: the first access point device determines service panel information according to the preference panel information, wherein the service panel information is used for indicating one or more second antenna panels; in the event that the one or more first antenna panels are different from the one or more second antenna panels, the associated reply frame carries service panel information.
Optionally, the service panel information includes an identification of the one or more second antenna panels; or, the service panel information includes a second bit sequence, where the second bit sequence includes a plurality of second bits, where the plurality of second bits are in one-to-one correspondence with the plurality of antenna panels, and a bit value on each second bit is used to indicate whether the corresponding antenna panel is the second antenna panel.
Optionally, the association reply frame further carries antenna number indication information, where the antenna number indication information is used to indicate the number of antennas on each of the one or more second antenna panels. That is, the first access point device may further carry the number of antennas on each first antenna panel in the associated response frame to inform the station device, so that the station device can more accurately learn the detailed information of each first antenna panel according to the number of antennas, so as to evaluate the transmission capability of each first antenna panel, and then may propose preference suggestions to the first access point device according to the evaluation result, or may request to control the opening or closing of the antenna panel on the first access point device, and so on.
Optionally, in the case that the service panel information includes the second bit sequence, the first access point device may further carry the number of antennas on each antenna panel included in itself in the association response frame.
In the application, after the first access point device sends the association response frame to the station device, the first access point device and the station device are associated. The first access point device may then serve the station device, i.e. the station device may perform data transmission with other devices via the first access point device. The first access point device may forward the data frame to the station device, or receive the data frame sent by the station device and forward the data frame to other devices. Because the first access point device includes a plurality of antenna panels, the mode of transmitting the data frames by the plurality of antenna panels may be a multi-panel joint transmission mode or a single-panel transmission mode, the first access point device may inform the station device of the mode of transmitting the data frames to the station device, and the station device may accurately know which antenna panels on the first access point device transmit the data frames currently received, so as to evaluate the antenna panels according to the signal power of the received data frames.
That is, after the first access point device sends the association response frame to the station device, the method further includes: the first access point device sends a data frame to the station device, wherein the data frame carries transmission mode indication information, the transmission mode indication information is used for indicating whether the transmission mode of the data frame is a multi-panel joint transmission mode or a single-panel transmission mode, and an antenna panel used for transmitting the data frame.
In order to further utilize the capability of the multi-antenna panel, the application also provides a method for declaring the switch state of the multi-panel on the device, so as to inform other devices of the current switch state of the panel, and facilitate panel evaluation, channel measurement and the like. The ap device may declare the switch status of each antenna panel included in the ap device, for example, the first ap device may declare to the ap device, may broadcast the declaration, or when the first ap device is a master ap device in the ap collaboration group, the master ap device may declare to the slave ap device, and the slave ap device may declare to the master ap device. If the station apparatus also includes a plurality of antenna panels, the station apparatus may also declare the switch state of each of the antenna panels included in itself to the first access point apparatus. Next, taking an example that the first access point device declares the switch state of each antenna panel included in the first access point device to the site device, a method for declaring the switch state of the multi-panel on the site device provided by the embodiment of the application is described.
Alternatively, the device may assert the panel switch state with multiple types of assertion information, which may be panel switch state assertion, multi-link panel state assertion, duration-based panel power saving assertion, mode-based panel power saving assertion, or the like.
The precondition for implementing the method for declaring the status of the multi-panel switch on the device provided by the application is that the transceiver has dynamic addition and subtraction multi-panel support (Dass) capability. The station device and the first access point device may interact in the association stage to determine whether the station device has the Dass capability, that is, the station device may carry the indication information about whether the station device has the Dass capability in the association request frame, and the first access point device may carry the indication information about whether the station device has the Dass capability in the association response frame. The master access point device and the slave access point device may interact with each other when joining the collaboration group if it is Dass capable.
Optionally, after the first access point device sends the association response frame to the station device, the method further includes: the first access point device receives a panel state acquisition request frame sent by the station device, wherein the panel state acquisition request frame is used for requesting to acquire the switch states of the plurality of antenna panels; the first access point device sends a panel state response frame to the station device, wherein the panel state response frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels. That is, the first access point device may assert its own multi-panel switch state after the station device requests.
Optionally, after the first access point device sends the association response frame to the station device, the method further includes: the first access point device sends a first panel state declaration frame to the station device, wherein the first panel state declaration frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels. That is, the first access point device may actively assert its own multi-panel switch state to the station device.
Optionally, after the first access point device sends the first panel state assertion frame to the station device, the assertion confirmation frame sent by the station device may also be received, where the assertion confirmation frame is used to instruct the station device to confirm that the first panel state assertion frame is received.
In this application, the first access point device may serve multiple links, where the target link is one link where the station device served by the first access point device is located, and the first access point device may inform the station device of information of an antenna panel used when serving the target link. That is, after the first access point device sends the association response frame to the station device, the method further includes: the first access point device sends a second panel state declaration frame to the site device, wherein the second panel state declaration frame carries first link state information; the first link state information includes an identifier of a target link, and an identifier of an antenna panel used when the first access point device serves the target link, where the target link is a link where the station device is located.
Optionally, after the first access point device sends the second panel state declaration frame to the station device, the first access point device may further receive a declaration confirmation frame sent by the station device, where the declaration confirmation frame is used to instruct the station device to confirm that the second panel state declaration frame is received.
Alternatively, the first access point device may also broadcast panel status information corresponding to each link served. That is, after the first access point device sends the association response frame to the station device, the method further includes: the first access point device broadcasts a third panel state declaration frame through the plurality of antenna panels, wherein the third panel state declaration frame carries second link state information; the second link state information includes an identifier of one or more links, and an identifier of an antenna panel used when the first access point device serves each of the one or more links, where the one or more links include a target link, and the target link is a link where the station device is located.
Optionally, the first link state information may further include a transmission power and/or a transmission angle of an antenna panel used when the first access point device serves the target link, and the second link state information may also include a transmission power and/or a transmission angle of an antenna panel used when the first access point device serves each link.
In this application, the first access point device may also notify the station device of information about the antenna panel to be used when changing the status of each antenna panel to save panel power. That is, after the first access point device sends the association response frame to the station device, the method further includes: the first access point device sends a fourth panel state statement frame to the station device, wherein the fourth panel state statement frame carries panel increase and decrease information; the panel increasing and decreasing information comprises a starting time, a duration and second panel state information, wherein the panel increasing and decreasing information is used for indicating a combination mode of the first access point equipment according to the second panel state information service station equipment in the duration from the starting time, and the second panel state information is used for indicating the switching states of the plurality of antenna panels; alternatively, the panel increase/decrease information includes third panel information indicating one of various combinations of the switch states of the plurality of antenna panels, the panel increase/decrease information indicating that the first access point device switches to serve the station device according to the third panel information. That is, a duration-based panel power saving declaration, or a mode-based panel power saving declaration.
In order to further improve the capability of the multi-antenna panel, the application also provides a method for controlling the antenna panel state of other equipment so as to control the panel switch state, the transmission power, the transmission angle and the like of the other equipment, thereby facilitating better utilization of the multi-antenna panel. The first access point device may control the switch states of the antenna panels included in the station device, and the station device may also request to control the switch states of the antenna panels included in the first access point device. When the first access point device is a master access point device in the access point cooperation group, the master access point device may also control the switch states of the antenna panels included in the slave access point device, and the slave access point device may also request to control the switch states of the antenna panels included in the master access point device. Next, taking a case that the master access point device controls the switch states of the antenna panels included in the slave access point device as an example, a method for controlling the states of the antenna panels of other devices provided in the embodiments of the present application will be described.
Optionally, the first access point device is a master access point device in an access point cooperation group, and the access point cooperation group further includes one or more slave access point devices; the method further comprises the steps of: the first access point device sends a first panel-like control frame to the second access point device, wherein the first panel-like control frame carries panel switch indication information, panel transmission power information and/or panel transmission angle information, the panel switch indication information is used for indicating that the first access point device desires to control on or off of each antenna panel in a plurality of antenna panels on the second access point device, the panel transmission power information and the panel transmission angle information are respectively used for indicating that the first access point device desires to control the transmission power and the transmission angle corresponding to each antenna panel in the plurality of antenna panels on the second access point device, and the second access point device is one of the one or more slave access point devices; the first access point device receives a control response frame sent by the second access point device, wherein the control response frame is used for indicating the second access point device to accept or reject the control of the first access point device.
Optionally, the panel switch indication information includes a third bit sequence, where the third bit sequence includes a plurality of third bits, where the plurality of third bits correspond to a plurality of antenna panels on the second access point device one-to-one, and a bit value on each third bit is used to indicate that the first access point device desires to control the corresponding antenna panel on the second access point device to be turned on or off.
In addition to the above description, the present application further provides a method for declaring the panel plug information or panel state change on the device, so that when the antenna panel state of the device changes, the change message is timely notified to other devices, so that the other devices can timely know the transmission capability of the current opposite terminal device, and better change the panel state of the device or control the panel state of the other devices, so as to ensure the communication quality. The declaration may be a declaration between the access point device and the station device, or a declaration between the master access point device and the slave access point device. This is described next in terms of a declaration between the master access point device and the slave access point device.
Optionally, the first access point device is a master access point device in an access point cooperation group, and the access point cooperation group further includes one or more slave access point devices; the method further comprises the steps of: the first access point device receives a panel state change frame sent by the second access point device, wherein the panel state change frame is used for indicating an antenna panel with a panel state change in the second access point device, the panel state change refers to the opening or closing of the antenna panel, and the second access point device is one of the one or more slave access point devices; if it is determined that an antenna panel is inserted into the second access point device through the panel state change frame, the first access point device transmits a panel state command frame to the second access point device, the panel state command frame being used to instruct the second access point device to turn on or off the inserted antenna panel.
Optionally, if it is determined by the panel state change frame that one antenna panel is unplugged from the second access point device, the first access point device sends a panel state response frame to the second access point device, where the panel state response frame is used to indicate that the first access point device has accepted the antenna panel unplugged from the second access point device.
Optionally, in the case that it is determined by the panel state change frame that an antenna panel is inserted into the second access point device, before the first access point device sends the panel state command frame to the second access point device, the method further includes: the first access point device sends an acknowledgement frame to the second access point device; the first access point device sends a channel measurement frame to the second access point device to instruct the second access point device to perform channel measurement on the inserted antenna panel; the first access point device receives a channel measurement result sent by the second access point device; the first access point device performs the step of transmitting a panel status command frame to the second access point device according to the channel measurement result. That is, in the present application, the first access point device may instruct the second access point device to evaluate the inserted antenna panel, for example, initiate a channel measurement procedure to instruct the station device to perform channel measurement, and send a panel status command frame to the second access point device according to the evaluation result after the evaluation, so as to instruct the second access point device to open or close the inserted antenna panel.
In a second aspect, there is provided an apparatus for associating an access point device, where the apparatus for associating an access point device has a function of implementing the method behavior of the associated access point device in the first aspect. The means for associating access point devices comprises one or more modules for implementing the method for associating access point devices provided in the first aspect.
That is, the present application provides an apparatus for associating an access point device, applied to a first access point device, where the first access point device includes a plurality of antenna panels, each antenna panel of the plurality of antenna panels is provided with a plurality of antennas, and the apparatus includes:
a broadcasting module for broadcasting beacon frames through the plurality of antenna panels;
the first receiving module is used for receiving an association request frame sent by the station equipment, the association request frame carries preference panel information, the preference panel information is used for indicating one or more first antenna panels, the first antenna panels are antenna panels used when the first access point equipment is expected to serve the station equipment, and the preference panel information is determined by the station equipment according to the beacon frame;
the first sending module is configured to send an association response frame to the station device to associate the station device with the first access point device, where the association response frame is used to indicate one or more second antenna panels, the second antenna panels are antenna panels actually used when the first access point device serves the station device, and the one or more second antenna panels are determined by the first access point device according to the preference panel information.
Optionally, the preference panel information includes an identification of the one or more first antenna panels; or alternatively, the process may be performed,
the preference panel information includes a first bit sequence including a plurality of first bits corresponding one-to-one to the plurality of antenna panels, a bit value on each first bit indicating whether the corresponding antenna panel is a first antenna panel.
Optionally, the apparatus further comprises:
a determining module for determining service panel information according to the preference panel information, the service panel information being for indicating the one or more second antenna panels;
in the event that the one or more first antenna panels are different from the one or more second antenna panels, the associated reply frame carries service panel information.
Optionally, the service panel information includes an identification of the one or more second antenna panels; or alternatively, the process may be performed,
the service panel information includes a second bit sequence including a plurality of second bits, the plurality of second bits corresponding to the plurality of antenna panels one-to-one, and a bit value on each second bit is used to indicate whether the corresponding antenna panel is the second antenna panel.
Optionally, the association request frame further carries signal energy indication information for indicating that the station apparatus receives signal energy of the beacon frame through each of the one or more first antenna panels.
Optionally, the association reply frame further carries antenna number indication information, where the antenna number indication information is used to indicate the number of antennas on each of the one or more second antenna panels.
Optionally, the apparatus further comprises:
the second sending module is used for sending a data frame to the station equipment, the data frame carries transmission mode indication information, the transmission mode indication information is used for indicating whether the transmission mode of the data frame is a multi-panel joint transmission mode or a single-panel transmission mode, and an antenna panel used for transmitting the data frame.
Optionally, the broadcasting module is specifically configured to:
broadcasting a first beacon frame through one or more third antenna panels at a first moment, broadcasting a second beacon frame through one or more fourth antenna panels at a second moment, wherein the first beacon frame is a beacon frame which does not support MP MIMO, the second beacon frame is a beacon frame which supports MP MIMO, the first moment is the same as or different from the second moment, the third antenna panel is one antenna panel of the plurality of antenna panels, and the one or more fourth antenna panels are antenna panels of the plurality of antenna panels except for the one or more third antenna panels;
Wherein the first beacon frame carries an identity of a first BSS created through the one or more third antenna panels, and the second beacon frame carries an identity of a second BSS, different from the identity of the first BSS, created through the one or more fourth antenna panels.
Optionally, the apparatus further comprises:
the second receiving module is used for receiving a panel state acquisition request frame sent by the station equipment, wherein the panel state acquisition request frame is used for requesting to acquire the switch states of the plurality of antenna panels;
and the third sending module is used for sending a panel state response frame to the station equipment, wherein the panel state response frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
Optionally, the apparatus further comprises:
and the fourth sending module is used for sending a first panel state statement frame to the station equipment, wherein the first panel state statement frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
Optionally, the apparatus further comprises:
a fifth sending module, configured to send a second plane state declaration frame to the station device, where the second plane state declaration frame carries the first link state information;
The first link state information includes an identifier of a target link, and an identifier of an antenna panel used when the first access point device serves the target link, where the target link refers to a link where the station device is located.
Optionally, the broadcasting module is further configured to:
broadcasting a third panel state declaration frame through the plurality of antenna panels, wherein the third panel state declaration frame carries second link state information;
the second link state information includes an identifier of one or more links, and an identifier of an antenna panel used when the first access point device serves each of the one or more links, where the one or more links include a target link, and the target link is a link where the station device is located.
Optionally, the apparatus further comprises:
a sixth sending module, configured to send a fourth panel state declaration frame to the station device, where the fourth panel state declaration frame carries panel increase and decrease information;
the panel increasing and decreasing information comprises a starting time, a duration and second panel state information, wherein the panel increasing and decreasing information is used for indicating the first access point equipment to serve the station equipment according to the second panel state information in the duration from the starting time, and the second panel state information is used for indicating a combination mode of the switch states of the plurality of antenna panels; or alternatively, the process may be performed,
The panel increase/decrease information includes third panel information indicating one of various combinations of the switch states of the plurality of antenna panels, the panel increase/decrease information indicating that the first access point device switches to serve the station device according to the third panel information.
Optionally, the first access point device is a master access point device in an access point cooperation group, and the access point cooperation group further includes one or more slave access point devices;
the apparatus further comprises:
a seventh transmitting module, configured to transmit a first panel-like control frame to a second access point device, where the first panel-like control frame carries panel switch indication information, panel transmission power information, and/or panel transmission angle information, where the panel switch indication information is used to indicate that the first access point device desires to control on or off of each of a plurality of antenna panels on the second access point device, and the panel transmission power information and the panel transmission angle information are respectively used to indicate that the first access point device desires to control on or off of each of a plurality of antenna panels on the second access point device, where the second access point device is one of the one or more slave access point devices;
And the third receiving module is used for receiving a control response frame sent by the second access point device, and the control response frame is used for indicating the second access point device to accept or reject the control of the first access point device.
Optionally, the panel switch indication information includes a third bit sequence, where the third bit sequence includes a plurality of third bits, where the plurality of third bits correspond to a plurality of antenna panels on the second access point device one-to-one, and a bit value on each third bit is used to indicate that the first access point device desires to control the corresponding antenna panel on the second access point device to be turned on or off.
Optionally, the first access point device is a master access point device in an access point cooperation group, and the access point cooperation group further includes one or more slave access point devices;
the apparatus further comprises:
a fourth receiving module, configured to receive a panel state change frame sent by the second access point device, where the panel state change frame is used to indicate an antenna panel with a changed panel state in the second access point device, where the panel state change refers to plugging the antenna panel, or opening or closing the antenna panel, and the second access point device is one of the one or more slave access point devices;
And an eighth transmitting module, configured to, if it is determined by the panel state change frame that one antenna panel is inserted into the second access point device, transmit a panel state command frame to the second access point device, where the panel state command frame is used to instruct the second access point device to turn on or off the inserted antenna panel.
Optionally, the eighth sending module is specifically configured to:
transmitting an acknowledgement frame to the second access point device;
transmitting a channel measurement frame to the second access point device to instruct the second access point device to perform channel measurement on the inserted antenna panel;
receiving a channel measurement result sent by second access point equipment;
and sending a panel state command frame to the second access point device according to the channel measurement result.
In a third aspect, an access point device is provided, the access point device comprising a processor and a memory for storing a program for performing the method of associating an access point device provided in the first aspect above, and for storing data involved in implementing the method of associating an access point device provided in the first aspect above. The processor is configured to execute a program stored in the memory. The operating means of the memory device may further comprise a communication bus for establishing a connection between the processor and the memory.
In a fourth aspect, there is provided a computer readable storage medium having instructions stored therein which, when run on a computer, cause the computer to perform the method of associating an access point device according to the first aspect described above.
In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of associating an access point device as described in the first aspect above.
The technical effects obtained in the second, third, fourth and fifth aspects are similar to the technical effects obtained in the corresponding technical means in the first aspect, and are not described in detail herein.
The technical scheme that this application provided can bring following beneficial effect at least:
in the present application, an access point device includes a plurality of antenna panels, a station device may send an association request frame to the access point device after receiving beacon frames broadcast by the access point device through the plurality of antenna panels, and the access point device may send an association response frame to the station device to associate the station device. The association request frame carries preference panel information, the preference panel information is determined according to the beacon frame and is used for indicating an antenna panel used when the access point device is expected to serve the station device, and the association response frame is used for indicating an antenna panel actually used when the access point device serves the station device. Therefore, in the process of associating the site equipment with the access point equipment, the site equipment can propose advice to the access point equipment, and the access point equipment can respond to the advice to the site equipment, so that the access point equipment can use the most suitable antenna panel to serve the site equipment after association, the capacity of the multi-antenna panel is fully utilized, and therefore efficient data transmission is achieved, and throughput is improved.
Drawings
Fig. 1 is a system architecture diagram related to a method for associating access point devices according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a computer device according to an embodiment of the present application;
fig. 3 is a flowchart of a method for associating access point devices provided in an embodiment of the present application;
fig. 4 is a schematic diagram of an access point device broadcasting a beacon frame according to an embodiment of the present application;
fig. 5 is a schematic diagram of another access point device broadcasting a beacon frame according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a configuration of preference panel information provided in an embodiment of the present application;
FIG. 7 is a schematic diagram of a configuration of another preference panel information provided by an embodiment of the present application;
FIG. 8 is a schematic diagram of another configuration of preference panel information provided by an embodiment of the present application;
FIG. 9 is a schematic diagram of a structure of further preference panel information provided by an embodiment of the present application;
FIG. 10 is a schematic diagram of a structure of further preference panel information provided by an embodiment of the present application;
FIG. 11 is a schematic diagram of the structure of yet another preference panel information provided by an embodiment of the present application;
fig. 12 is a flowchart of an associated access point device provided in an embodiment of the present application;
Fig. 13 is a schematic structural diagram of service panel information according to an embodiment of the present application;
fig. 14 is a schematic structural diagram of another service panel information provided in an embodiment of the present application;
fig. 15 is a schematic structural diagram of antenna number indication information according to an embodiment of the present application;
fig. 16 is a schematic structural diagram of a data frame carrying transmission mode indication information according to an embodiment of the present application;
fig. 17 is a schematic structural diagram of another data frame carrying transmission mode indication information according to an embodiment of the present application;
fig. 18 is a schematic structural diagram of another data frame carrying transmission mode indication information according to an embodiment of the present application;
fig. 19 is a flowchart of an access point device declaring a multi-panel switch state according to an embodiment of the present application;
FIG. 20 is a schematic diagram of a frame structure carrying a dynamic add-drop multi-panel support capability according to an embodiment of the present application;
FIG. 21 is a schematic diagram of defining sub-elements in an element provided by an embodiment of the present application;
fig. 22 is a schematic structural diagram of first panel information according to an embodiment of the present application;
FIG. 23 is a schematic diagram of a structure of reply acknowledge information of a claim included in a claim acknowledge frame according to an embodiment of the present application;
Fig. 24 is a schematic structural diagram of first link state information according to an embodiment of the present application;
fig. 25 is a schematic structural diagram of panel increasing/decreasing information according to an embodiment of the present disclosure;
FIG. 26 is a schematic diagram of another panel increase/decrease information according to an embodiment of the present disclosure;
FIG. 27 is a schematic diagram of a declaration frame structure carrying panel increase/decrease information according to an embodiment of the present application;
fig. 28 is a flowchart of a method for controlling the antenna panel status of other devices according to an embodiment of the present application;
fig. 29 is a schematic structural diagram of a first panel control frame according to an embodiment of the present application;
FIG. 30 is a schematic diagram of a panel state change frame according to an embodiment of the present disclosure;
FIG. 31 is a flow chart of a method for declaring a change in status of a panel on a device provided by an embodiment of the present application;
FIG. 32 is a schematic diagram of a configuration of a panel status command frame according to an embodiment of the present application;
fig. 33 is a schematic structural diagram of an apparatus for associating access point devices according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.
It should be understood that references herein to "at least one" mean one or more, and "a plurality" means two or more. In the description of the present application, "/" means or, unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.
Fig. 1 is a system architecture diagram related to a method for associating access point devices according to an embodiment of the present application. Referring to fig. 1, the system architecture includes one or more access point devices 101, station devices 102. The station device 102 may communicate with the respective access point devices 101 through a wired or wireless connection, each access point device 101 may include a plurality of antenna panels, and the station device 102 may include one or more antenna panels, where each antenna panel is provided with a plurality of antennas.
When the system architecture includes multiple access point devices 101, the multiple access point devices 101 may form one or more access point cooperative groups, i.e., form a multi-access point device cooperative scenario. For example, one access point device 101 of the plurality of access point devices 101 serves as a master access point device, and the remaining access point devices 101 serve as slave access point devices, thereby forming one access point cooperation group. As another example, each access point device 101 may be configured as a master access point device, and the remaining one or more access point devices 101 may be configured as slave access point devices, that is, the access point devices 101 may be in a parallel relationship with each other, so as to form a plurality of access point cooperation groups.
When the system architecture includes an access point device 101, a single access point device scenario is formed, with the access point device 101 servicing the station device 102 independently.
The access point device 101 is configured to broadcast a beacon frame to instruct the station device 102 to associate with the access point device 101 and to serve the station device 102 after association. In a scenario where a plurality of access point devices 101 form an access point cooperative group, the master access point device 101 is also configured to control the slave access point device 101 to serve the station device 102 in cooperation with the slave access point device 101.
The station device 102 is configured to receive a beacon frame broadcast by the access point device 101, and send an association request frame to the access point device 101, so as to associate the access point device 101, and perform data transmission with other devices through the access point device 101 after association.
It should be noted that, the system architecture may also include a plurality of station devices 102, where each station device 102 may implement the method for associating with the access point device 101 provided in the embodiment of the present application, and the following embodiment describes the method with one of the station devices 102.
In this embodiment of the present application, the access point device 101 may be a communication server, a router, a switch, a bridge, and the like, and the site device 102 may be a computer, a mobile phone, a communication server, a router, a switch, a bridge, and the like.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a computer device according to an embodiment of the present application. Optionally, the computer device is an access point device or a station device as shown in fig. 1, the computer device comprising one or more processors 201, a communication bus 202, a memory 203, one or more communication interfaces 204, and one or more antenna panels 205.
The processor 201 is a general purpose central processing unit (central processing unit, CPU), network processor (network processing, NP), microprocessor, or one or more integrated circuits for implementing aspects of the present application, such as application-specific integrated circuits (ASIC), programmable logic devices (programmable logic device, PLD), or a combination thereof. Alternatively, the PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field-programmable gate array (field-programmable gate array, FPGA), generic array logic (generic array logic, GAL), or any combination thereof.
Communication bus 202 is used to transfer information between the above-described components. Optionally, the communication bus 202 is divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
Optionally, the memory 203 is a read-only memory (ROM), a random-access memory (random access memory, RAM), an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), an optical disk (including, but not limited to, a compact disk (compact disc read-only memory, CD-ROM), a compact disk, a laser disk, a digital versatile disk, a blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by a computer. The memory 203 is independent and is connected to the processor 201 via the communication bus 202 or the memory 203 is integrated with the processor 201.
The communication interface 204 uses any transceiver-like device for communicating with other devices or communication networks. The communication interface 204 comprises a wired communication interface and optionally a wireless communication interface. Wherein the wired communication interface is for example an ethernet interface or the like. Optionally, the ethernet interface is an optical interface, an electrical interface, or a combination thereof. The wireless communication interface is a wireless local area network (wireless local area networks, WLAN) interface, a cellular network communication interface, a combination thereof, or the like.
The antenna panel 205 is provided with a plurality of antennas, and the antenna panel 205 is used for transmitting and receiving data and transmitting data to other devices.
Optionally, in some embodiments, the computer device includes a plurality of processors, such as processor 201 and processor 206 shown in fig. 2. Each of these processors is a single-core processor, or a multi-core processor. A processor herein may optionally refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
In a specific implementation, as an embodiment, the computer device further includes an output device 207 and an input device 208. The output device 207 is in communication with the processor 201 and can display information in a variety of ways. For example, the output device 207 is a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 208 is in communication with the processor 201 and is capable of receiving user input in a variety of ways. For example, the input device 208 is a mouse, keyboard, touch screen device, or sensing device, among others.
In some embodiments, the memory 203 is configured to store program code 210 for executing aspects of the present application, and the processor 201 is capable of executing the program code 210 stored in the memory 203. Included in the program code are one or more software modules that enable the computer device to implement the method of associating access point devices provided by the embodiment of fig. 3 below, through the processor 201 and the program code 210 in the memory 203.
Fig. 3 is a flowchart of a method for associating an access point device according to an embodiment of the present application, where the method may be applied to a first access point device, and the first access point device includes a plurality of antenna panels, where each antenna panel of the plurality of antenna panels is provided with a plurality of antennas. Referring to fig. 3, the method includes the following steps.
Step 301: the first access point device broadcasts beacon frames over a plurality of antenna panels.
In the embodiment of the present application, the system architecture shown in fig. 1 includes one or more access point devices, where the first access point device is one of the access point devices. The first access point device may broadcast a beacon frame through a plurality of antenna panels, may broadcast periodically, or may broadcast periodically.
After the first access point device broadcasts the beacon frame, nearby station devices may receive the beacon frame, after which the station device may send an association request frame to the first access point device to request association of the first access point device.
Illustratively, assuming that the first access point device is a wireless Access Point (AP) device and the station device is a handset, the wireless AP may broadcast a beacon frame to the surrounding environment to inform of its presence, and the handset may send an association request frame to the wireless AP by scanning for the beacon frame, i.e., discovering the presence of the wireless AP, to request access to the wireless network.
Since there may be station apparatuses that do not support MP MIMO in the application scenario, in order to be able to be compatible with the station apparatuses that do not support MP MIMO and the station apparatuses that support MP MIMO, in the embodiment of the present application, the first station apparatus may be compatible with both station apparatuses through a broadcast beacon frame.
Optionally, the first access point device may broadcast a first beacon frame through one or more third antenna panels at a first time, broadcast a second beacon frame through one or more fourth antenna panels at a second time, where the first beacon frame is a beacon frame that does not support MP MIMO, the second beacon frame is a beacon frame that supports MP MIMO, the first time is the same as or different from the second time, the third antenna panel is one of the plurality of antenna panels, and the one or more fourth antenna panels are antenna panels of the plurality of antenna panels other than the one or more third antenna panels. Wherein the first beacon frame carries an identity of a first BSS created through the one or more third antenna panels, and the second beacon frame carries an identity of a second BSS created through the one or more fourth antenna panels, the identity of the second BSS being different from the identity of the first BSS.
In the embodiment of the present application, the first access point device may be compatible with different station devices by sending different beacon frames, where the first beacon frame is a beacon frame that does not support MP MIMO and is used for being compatible with a station device that does not support MP MIMO, and the second beacon frame is a beacon frame that supports MP MIMO and is used for being compatible with a station device that supports MP MIMO.
It should be noted that, the first BSS and the second BSS are two virtual cells created by the first access point device through different antenna panels, the first BSSID and the second BSSID are different two media access control (media access control, MAC) addresses, and the two virtual cells form two virtual APs from outside. Since the MAC addresses of the plurality of antenna panels of the first access point device may be the same or different, if the MAC addresses of the plurality of antenna panels are the same, the first BSSID may be the MAC address, that is, the first BSSID is the MAC address of the antenna panel, and the second BSSID is a virtual identifier different from the MAC address. If the MAC addresses of the plurality of antenna panels are different, the first BSSID may be a virtual one MAC address, and the second BSSID may be another virtual one, or the MAC address of a third antenna panel may be selected as the first BSSID, and the MAC address of a fourth antenna panel may be selected as the second BSSID. That is, the determined BSSID may be with a real MAC address or with a newly generated MAC address.
In addition, the access point device itself is typically equipped with a built-in antenna, and the access point device itself corresponds to a MAC address as a separate device, and when creating a BSS, it may be created by the access point device itself and the antenna panel, and the identity of the BSS may be generated based on the MAC address of the access point device itself and the MAC address of the antenna panel if it is a virtual MAC address.
The first beacon frame may be a legacy beacon frame, the second beacon frame is a newly defined beacon frame, and a frame format of the second beacon frame may be different from a frame format of the first beacon frame.
In addition, if the first time is the same as the second time, the station apparatus can determine whether the received beacon frame is the first beacon frame or the second beacon frame by parsing the received beacon frame according to the frame format of the two beacon frames being different. The station device that does not support MP MIMO may correctly parse the first beacon frame, but may not parse the second beacon frame, or may not correctly parse the second beacon frame, and even if such station device requests to associate with the first access point device according to the incorrectly parsed second beacon frame, the first access point device may reject the association request after receiving the association request frame. MP MIMO enabled station devices may correctly parse the second beacon frame as well as the first beacon frame, but such station devices may distinguish between the first beacon frame and the second beacon frame based on frame format, requesting association of the first access point device only through the second beacon frame.
If the first time is different from the second time, the station device may parse the beacon frame after the first time of receiving the beacon frame, record the receiving time, and learn the broadcast period of the beacon frame after the first access point device is successfully associated with the beacon frame through the beacon frame, and receive the same beacon frame for the second time, and then the station device may synchronously receive and parse the beacon frame according to the broadcast period, and ignore other beacon frames not synchronized with the broadcast period.
Fig. 4 is a schematic diagram of an access point device broadcasting a beacon frame according to an embodiment of the present application. Referring to fig. 4, assuming that the first time is different from the second time, the first access point device may broadcast a first beacon frame through the antenna panel 1 at the first time and broadcast a second beacon frame through the antenna panel 2 and the antenna panel 3 at the second time.
Fig. 5 is a schematic diagram of another access point device broadcasting a beacon frame according to an embodiment of the present application. Referring to fig. 5, assuming that the first time is identical to the second time, the first access point device may broadcast a first beacon frame through the antenna panel 1 and a second beacon frame through the antenna panel 2 and the antenna panel 3 at the same time.
Step 302: the first access point device receives an association request frame sent by the station device, wherein the association request frame carries preference panel information, the preference panel information is used for indicating one or more first antenna panels, and the first antenna panels are antenna panels used when the first access point device is expected to serve the station device.
In the embodiment of the present application, after the first access point device broadcasts the beacon frame through the multiple antenna panels, the station device may determine preference panel information according to the received beacon frame, and carry the preference panel information in the association request frame, and send the association request frame to the first access point device, so as to propose, to the first access point device, the antenna panel that is expected to be used when the first access point device serves the station device. Since the station device may receive the beacon frames broadcast by all the antenna panels, or may receive only some of the beacon frames broadcast by the antenna panels, and the relevant information of the antenna panels carried in the beacon frames broadcast by the respective antenna panels may be different. Based on this, there are various implementations of the station device determining preference panel information from the beacon frame, two of which are described below.
In a first implementation manner, when the first access point device broadcasts a beacon frame through multiple antenna panels, the beacon frame broadcast by one antenna panel carries relevant information of the corresponding antenna panel, such as the identification of the antenna panel, whether other site devices are currently served, and so on. The station device may learn about the information about the antenna panel after receiving the beacon frame broadcast by the antenna panel. However, since the transmission angles, transmission powers, and the like of the respective antenna panels may be different, the station device may only receive the beacon frames broadcast by part of the antenna panels, and even if the station device receives the beacon frames broadcast by all the antenna panels, the station device cannot determine whether to receive the beacon frames broadcast by all the antenna panels of the first access point device, and cannot determine whether all the antenna panels can serve the first access point device. Based on this, the station apparatus can determine the preference panel information only from the information of the corresponding antenna panel carried in each received beacon frame.
In the embodiment of the present application, the station device may evaluate the corresponding antenna panels according to the received signal energy, signal angle, etc. of each beacon frame, and select one or more first antenna panels from the antenna panels corresponding to each beacon frame as the preference panel. The first antenna panel is one of the antenna panels corresponding to the beacon frames, and the first antenna panel is an antenna panel used when the first access point device is expected to serve the station device. It should be noted that, the specific evaluation method may be set according to actual requirements, which is not limited in this embodiment of the present application.
Optionally, in an embodiment of the present application, the preference panel information includes identifiers of the one or more first antenna panels, and an order of the identifiers of the one or more antenna panels in the preference panel information may be any order.
Illustratively, since the frame body of the association request (association request) frame is defined in Table 8-22-Association Request frame body of IEEE Std 802.11TM-2012, in which 256 elements are defined, in the embodiment of the present application, the structure of the preference panel information can be designed with the frame structure of the elements.
Fig. 6 is a schematic structural diagram of preference panel information according to an embodiment of the present application. Referring to fig. 6, one Octet (internet standard use Octet) is 8 bits, the first Octet carries an identification (element ID) of a corresponding element, the second Octet carries a length (length, L) of the corresponding element, the third Octet carries identifications of one or more first antenna panels included in the preference panel information, the length occupied by each of the identifications of the first antenna panels may be one Qctet, and one of the first antenna panels may be referred to as one preference panel (Pref P), and the number of identifications of the preference panels included in the preference panel information is equal to the number of preference panels selected after evaluation.
Optionally, in the embodiment of the present application, the preference panel information includes a fourth bit sequence, and an identifier of an antenna panel corresponding to each beacon frame received by the station device, where the fourth bit sequence includes a plurality of fourth bits, and the plurality of fourth bits corresponds to the antenna panel corresponding to each beacon frame received by the station device one to one, and a bit value on each fourth bit is used to indicate whether the corresponding antenna panel is the first antenna panel.
Illustratively, the preference panel information is an element, and fig. 7 is a schematic structural diagram of another preference panel information provided in an embodiment of the present application. Referring to fig. 7, the third Octet carries a fourth bit sequence, which may be referred to as a Multi-panel capability (MP capability) field, and from the fourth Octet, the identification of the antenna panel corresponding to each beacon frame received by the station device is carried, and the length occupied by the identification of each antenna panel may be one Qctet, and the number of the identifications of the antenna panels included in the preference panel information is equal to the number of beacon frames received by the station device after the evaluation.
Optionally, the association request frame may further carry signal energy indication information for indicating signal energy of a beacon frame received by the station apparatus through each of the one or more first antenna panels.
In the embodiment of the present application, the signal energy indication information includes signal energy of a beacon frame received by each of the one or more first antenna panels, where the preference panel information includes an identification of the one or more first antenna panels, the identification of each first antenna panel may be immediately followed by the corresponding signal energy, or the identification of the last antenna panel may be followed by the corresponding signal energy of each antenna panel sequentially in order of each first antenna panel.
Illustratively, the preference panel information and the signal energy indication information are carried in one element, and fig. 8 is a schematic structural diagram of another preference panel information provided in an embodiment of the present application. Referring to fig. 8, the identification (prid) of one or more first antenna panels included in the preference panel information is carried from the third Octet, and each first antenna panel identification may be immediately followed by a corresponding signal energy (receive signal strength indicator, RSSI), i.e., on the basis of fig. 6, the identification of each preference panel is immediately followed by a corresponding signal energy.
Optionally, the signal energy indication information includes signal energy of an antenna panel corresponding to each beacon frame received by the station device, and in the case where the preference panel information includes the fourth bit sequence, the identification of the antenna panel corresponding to each beacon frame received by the station device may immediately follow the corresponding signal energy, or sequentially include the corresponding signal energy in order of the antenna panel corresponding to each fourth bit sequence after the identification of the last antenna panel.
Illustratively, as shown in fig. 9, preference panel information may be derived based on fig. 7, following the identification of each antenna panel with a corresponding signal energy.
In a second implementation manner, when the first access point device broadcasts a beacon frame through a plurality of antenna panels, the beacon frame broadcast by one antenna panel carries relevant information of all antenna panels, for example, information such as an identifier of each antenna panel in the plurality of antenna panels, whether other station devices are currently served by each antenna panel, and the like. After receiving the beacon frame broadcast by one antenna panel, the station device can acquire the relevant information of all antenna panels, and can also determine whether each antenna panel can serve the same. Based on this, the station apparatus can determine the preference panel information only from the relevant information of the plurality of antenna panels carried in the received beacon frame.
Optionally, the preference panel information includes a first bit sequence, the first bit sequence includes a plurality of first bits, the plurality of first bits are in one-to-one correspondence with the plurality of antenna panels, and a bit value on each first bit is used to indicate whether the corresponding antenna panel is the first antenna panel.
Illustratively, the preference panel information is an element, and fig. 10 is a schematic structural diagram of still another preference panel information provided in the embodiment of the present application. Referring to fig. 10, the third Octet carries a first bit sequence, which may be referred to as a multi-panel capability field, and the order of the respective antenna panels corresponding to the first bit sequence may be the same as the order of the respective antenna panels in the beacon frame. Alternatively, the beacon frame carries panel sequence information for indicating the sequence of the plurality of antenna panels, and the sequence of each antenna panel corresponding to the first bit sequence may be determined according to the panel sequence information.
Assuming that the first access point device includes three antenna panels, namely, an antenna panel 1, an antenna panel 2 and an antenna panel 3 in order, the first antenna panel determined by the station device is the antenna panel 1 and the antenna panel 3, the first bit sequence may be 00000101, where the last three bit sequences sequentially correspond to the antenna panel 1, the antenna panel 2 and the antenna panel 3, a bit value of '1' may indicate that the corresponding antenna panel is the first antenna panel, that is, the preference panel, and a bit value of '0' may indicate that the corresponding antenna panel is not the first antenna panel, that is, the preference panel.
Optionally, in a second implementation, the association request frame may also carry signal energy indication information. The signal energy indication information may include signal energy of a beacon frame received by the station device through each antenna panel of the plurality of antenna panels, and the carrying manner of the signal energy indication information may refer to the first implementation manner.
Fig. 11 is a schematic structural diagram of still another preference panel information provided in the embodiment of the present application, referring to fig. 11, after a first bit sequence, that is, a multi-panel capability field, signal energy corresponding to each antenna panel may be sequentially included in the order of each antenna panel in the first bit sequence on the basis of fig. 10.
Step 303: the first access point device sends an association response frame to the station device to associate the station device with the first access point device, where the association response frame is used to indicate one or more second antenna panels, and the second antenna panels are antenna panels actually used when the station device is served by the first access point device.
In this embodiment of the present application, after receiving the association request frame carrying the preference panel information, the first access point device may determine one or more second antenna panels according to the preference panel information, where the second antenna panels are antenna panels actually to be used when the first access point device serves the station device, and send an association response frame to the station device, so as to indicate the one or more second antenna panels to the station device. That is, after the station device makes a preference panel suggestion to the first access point device, the first access point device may respond to the suggestion to the station device.
It should be noted that, after evaluating the one or more first antenna panels indicated by the preference panel information, the first access point device may determine the one or more second antenna panels.
Fig. 12 is a flowchart of an associated access point device provided in an embodiment of the present application. Referring to fig. 12, a Station (STA) device may send an association request frame to a first Access Point (AP) device in an association phase, the association request frame carrying preference panel information, the first access point device may send an association reply frame to the station device after receiving the association request frame, and the association reply frame is used to indicate the one or more second antenna panels.
Optionally, before sending the association response frame to the station device, the first access point device may determine service panel information according to preference panel information, where the service panel information is used to indicate one or more second antenna panels, and in a case where one or more first antenna panels indicated by the preference panel information are different from the one or more second antenna panels, the service panel information is carried in the association response frame. Alternatively, the first access point device may not carry service panel information in the associated reply frame in the case where the one or more first antenna panels are identical to the one or more second antenna panels.
In this embodiment of the present application, the first access point device may evaluate one or more first antenna panels indicated by the preference panel information according to the transmission power and the transmission angle of each antenna panel assembled by itself, the interference relationship between the antenna panels of other devices, and the like, and then select one or more second antenna panels from the multiple antenna panels, so as to determine service panel information. It should be noted that, the specific evaluation method may also be set according to actual requirements, which is not limited in this embodiment of the present application.
Optionally, the service panel information includes an identification of one or more second antenna panels. Or, the service panel information includes a second bit sequence, where the second bit sequence includes a plurality of second bits, where the plurality of second bits are in one-to-one correspondence with a plurality of antenna panels included in the first access point device, and a bit value on each second bit is used to indicate whether the corresponding antenna panel is a second antenna panel.
Illustratively, the service panel information is an element, and fig. 13 is a schematic structural diagram of the service panel information provided in the embodiment of the present application. Referring to fig. 13, in the case where the service panel information includes identifiers of one or more second antenna panels, the identifiers (panel IDs) of the one or more second antenna panels included in the service panel information may be carried from the third Octet, and the length occupied by the identifier of each second antenna panel may be one Qctet, and one second antenna panel may be referred to as one service panel (Serv P), and the number of identifiers of the service panels included in the service panel information is equal to the number of service panels selected after the evaluation.
Illustratively, the service panel information is an element, and fig. 14 is a schematic structural diagram of another service panel information provided in the embodiment of the present application. Referring to fig. 14, in the case where the service panel information includes the second bit sequence, the third Octet carries the second bit sequence, which may be referred to as a service panel bit map (bitmap), and the order of the respective antenna panels corresponding to the second bit sequence may be the same as the order of the respective antenna panels in the beacon frame.
Optionally, the association reply frame may further carry antenna number indication information, where the antenna number indication information is used to indicate the number of antennas on each of the one or more second antenna panels. That is, the first access point device may further carry the number of antennas on each first antenna panel in the associated response frame to inform the station device, so that the station device can more accurately learn the detailed information of each first antenna panel according to the number of antennas, so as to evaluate the transmission capability of each first antenna panel, and then may propose preference suggestions to the first access point device according to the evaluation result, or may request to control the opening or closing of the antenna panel on the first access point device, and so on.
Illustratively, the antenna number indication information is an element, and fig. 15 is a schematic structural diagram of the antenna number indication information provided in the embodiment of the present application. Referring to fig. 15, the third Octet carries the total number (number, num) of the second antenna panels, and sequentially carries the number of antennas (antenna number) on each antenna panel in the order of each second antenna panel included in the service panel information, starting from the fourth Octet.
Alternatively, the number of antennas on each second antenna panel may be immediately following the identity of the corresponding second antenna panel on the basis of fig. 13. Alternatively, the number of antennas on each second antenna panel may be carried after the identification of the last second antenna panel in the order of each second antenna panel included in the service panel information based on fig. 13.
Optionally, in the case that the service panel information includes the second bit sequence, the first access point device may further carry the number of antennas on each antenna panel included in itself in the association response frame.
For example, the number of antennas on each antenna panel may be sequentially carried after the second bit sequence in the order of each antenna panel included in the second bit sequence on the basis of fig. 14.
In this embodiment of the present application, after the first access point device sends the association response frame to the station device, the first access point device completes association with the station device. The first access point device may then serve the station device, i.e. the station device may perform data transmission with other devices via the first access point device. The first access point device may forward the data frame to the station device, or receive the data frame sent by the station device and forward the data frame to other devices.
In this embodiment of the present application, since the first access point device includes a plurality of antenna panels, a manner of transmitting data frames by the plurality of antenna panels may be a multi-panel joint transmission manner or a single-panel transmission manner, the first access point device may inform the station device of a manner of transmitting data frames to the station device, and the station device may accurately learn which antenna panels on the first access point device transmit the currently received data frames, and further evaluate the antenna panels according to signal power of the received data frames, and may also propose preference suggestions to the first access point device according to an evaluation result, or may also request to control on or off the antenna panels on the first access point device. It should be noted that, the specific evaluation method may also be set according to actual requirements, which is not limited in this embodiment of the present application.
In some embodiments, the first access point device may send a data frame to the station device, where the data frame carries transmission mode indication information, where the transmission mode indication information indicates whether a transmission mode of the data frame is a multi-panel joint transmission mode or a single-panel transmission mode, and indicates an antenna panel for transmitting the data frame.
Optionally, the transmission mode indication information includes a fifth bit sequence, and a length of the fifth bit sequence may be determined according to the number of antenna panels that may be assembled at most in the first access point device. The length of the fifth bit sequence may be 2 if at most 3 antenna panels can be assembled in the first access point device, and 3 if at most 6 antenna panels can be assembled in the first access point device.
Assuming that at most 3 antenna panels, namely, an antenna panel 1, an antenna panel 2 and an antenna panel 3, can be assembled in the first access point device, the length of the fifth bit sequence is 2, if the value of the fifth bit sequence is 0, the transmission mode of the corresponding data frame can be represented as a multi-panel joint transmission mode, and if the value of the fifth bit sequence is not 0, the transmission mode of the corresponding data frame can be represented as a single-panel transmission mode. Wherein if the value of the fifth bit sequence is 0, it may indicate that the multi-panel joint transmission is performed using the antenna panel 1, the antenna panel 2, and the antenna panel 3, and if the value of the fifth bit sequence is 1, 2, or 3, it may indicate that the single-panel transmission is performed using the antenna panel 1, the antenna panel 2, or the antenna panel 3, respectively. In other embodiments, if the value of the fifth bit sequence is not 0, it may also indicate that the transmission mode of the corresponding data frame is a multi-panel joint transmission mode, for example, when the value of the fifth bit sequence is defined to be 1, it indicates that the transmission mode of the corresponding data frame is joint transmission of the antenna panel 1 and the antenna panel 2, when the value of the fifth bit sequence is defined to be 2, it indicates that the transmission mode of the corresponding data frame is joint transmission of the antenna panel 1 and the antenna panel 3, and when the value of the fifth bit sequence is defined to be 3, it indicates that the transmission mode of the corresponding data frame is joint transmission of the antenna panel 2 and the antenna panel 3. That is, 3 different combinations of the antenna panel 1, the antenna panel 2, and the antenna panel 3 may form 3 panel combination modes, and if the value of the fifth bit sequence is 1, 2, or 3, it may represent that the multi-panel joint transmission is performed using the corresponding panel combination modes, respectively.
For example, assuming that the length of the fifth bit sequence may be 2, that is, include two bits of data, the first access point device may carry the transmission mode indication information in a physical protocol data unit (physical protocol data unit, PPDU) frame, that is, carry the fifth bit sequence of two bits, fig. 16, 17 and 18 are schematic structural diagrams of three data frames carrying the transmission mode indication information provided in the embodiments of the present application. Ext> referringext> toext> fig.ext> 16ext>,ext> transmissionext> modeext> indicationext> informationext> mayext> beext> representedext> byext> twoext> bitsext> inext> anext> EHText> -ext> SIGext> -ext> aext> inext> aext> PPDUext> frameext>.ext> Ext> referringext> toext> fig.ext> 17ext>,ext> onext> theext> basisext> ofext> fig.ext> 16ext>,ext> theext> transmissionext> modeext> indicationext> informationext> mayext> beext> carriedext> withext> twoext> bitsext> inext> theext> lsbext> inext> theext> bssext> colorext> (ext> bssext> colext>,ext> cellext> colorext>)ext> fieldext> inext> theext> EHText> -ext> SIGext> -ext> aext>.ext> Referring to fig. 18, the transmission mode indication information may be carried in two bits in a version-related field (version dependent fields, ver D F) of a general information field in the PPDU frame. Alternatively, the transmission mode indication information may be carried in two bits in an MPDU (MAC PDU) frame, that is, in a Data field in a PPDU frame, for example, two bits may be added before the initial position of the MPDU frame body for carrying the transmission mode indication information, and for example, two bits (e.g., third and fourth bits) may be used in the frame control field for carrying the transmission mode indication information.
In addition, it should be noted that, in the implementation manner of transmitting, by the station device, a data frame through the first access point device in the foregoing embodiment, the description is provided on the premise that the station device is a device supporting MP MIMO, that is, there is no compatibility problem, in this case, if the MAC addresses of the multiple antenna panels on the first access point device are different, the first access point device may virtually form a BSS through the multiple antenna panels, an identifier (BSSID) of the BSS is a virtual MAC address, and the multiple antenna panels commonly use the BSSID, so as to externally embody an access point device, that is, after the station device receives the data frame, it is known that the current opposite communication end is an access point device through the BSSID. Each antenna panel has a unique identifier, that is, the identifiers (pin IDs) of the antenna panels are different, and the antenna panel indicated by the transmission mode indication information carried by the data frame is used for indicating the station device to know the antenna panel used by the associated access point device to actually transmit the corresponding data frame. In addition, if the above compatibility problem is considered, in the implementation manner of transmitting, by the station device, the data frame through the first access point device, where the station device is a device supporting MP MIMO, the first access point device may virtual one BSS through one or more fourth antenna panels, that is, create a second BSS, to serve the station device supporting MP MIMO.
In order to further utilize the capability of the multi-antenna panel, the embodiment of the application also provides a method for declaring the switch state of the multi-panel on the device, so as to inform other devices of the current switch state of the panel, and facilitate panel evaluation, channel measurement and the like. The ap device may declare the switch status of each antenna panel included in the ap device, for example, the first ap device may declare to the ap device, may broadcast the declaration, or when the first ap device is a master ap device in the ap collaboration group, the master ap device may declare to the slave ap device, and the slave ap device may declare to the master ap device. If the station apparatus also includes a plurality of antenna panels, the station apparatus may also declare the switch state of each of the antenna panels included in itself to the first access point apparatus.
Next, taking an example that the first access point device declares the switch state of each antenna panel included in the first access point device to the site device, a method for declaring the switch state of the multi-panel on the site device provided by the embodiment of the application is described.
In this embodiment of the present application, after the first access point device sends the association response frame to the station device, the panel state acquisition request frame sent by the station device may also be received, where the panel state acquisition request frame is used to request to acquire switch states of multiple antenna panels included in the first access point device. The first access point device may send a panel status reply frame to the station device, where the panel status reply frame carries first panel status information, and the first panel status information is used to indicate a switch status of each antenna panel of the plurality of antenna panels.
Illustratively, fig. 19 is a flowchart of an access point device declaring a multi-panel switch state according to an embodiment of the present application. Referring to fig. 19, a station apparatus (STA) may transmit a panel state acquisition request frame to a first access point apparatus, and the first access point Apparatus (AP) may transmit a panel state response frame to the station apparatus to inform the station apparatus of a switching state of each antenna panel included in itself.
Alternatively, the device may assert the panel switch state with multiple types of assertion information, which may be panel switch state assertion, multi-link panel state assertion, duration-based panel power saving assertion, mode-based panel power saving assertion, or the like.
It should be noted that, the implementation precondition of the method for declaring the status of a multi-panel switch on a device provided in the embodiment of the present application is that the transceiver has a capability of dynamically increasing and decreasing the number of multi-panel supports (Dass). The station device and the first access point device may interact in the association stage to determine whether the station device has the Dass capability, that is, the station device may carry the indication information about whether the station device has the Dass capability in the association request frame, and the first access point device may carry the indication information about whether the station device has the Dass capability in the association response frame. The master access point device and the slave access point device may interact with each other when joining the collaboration group if it is Dass capable.
Illustratively, referring to fig. 20, the indication information of whether the device is das-capable is an element, an EHT-capable element may be defined, and one bit may be used therein to indicate whether the device is das-capable, for example, bit 1 may indicate having, and 0 indicates not having.
Optionally, after the first access point device sends the association response frame to the station device, the first access point device may also actively send a first panel state declaration frame to the station device, where the first panel state declaration frame carries first panel state information, where the first panel state information is used to indicate a switch state of each antenna panel in the multiple antenna panels.
Optionally, after the first access point device sends the first panel state assertion frame to the station device, the assertion confirmation frame sent by the station device may also be received, where the assertion confirmation frame is used to instruct the station device to acknowledge receiving the first panel state assertion frame.
Illustratively, the first panel information may be one element. Alternatively, in the case where all the elements defined by the IEEE Std 802.11TM-2012 standard have been used, as shown in fig. 21, a sub-element (sub) may be defined in one of the elements, where the length represents the total length of the element, including the length of the sub-element, and the length of the sub-element is a variable length, the sub-element portion may be extended according to the identity of the sub-element, that is, one or more sub-elements may be extended in one element, each of the sub-elements having different identities, and in the case where the element is insufficient, one sub-element may be defined to represent the first panel information.
As can be seen from the foregoing, the device declares the declaration information types of the panel switch state, and several sub-elements defined and the declaration information types corresponding to each sub-element are shown in table 1, and table 1 also shows a sub-element defining an information type as the reply acknowledge information of the declaration, which is used to represent a declaration acknowledge frame, and the declaration acknowledge frame includes the reply acknowledge information of the declaration.
TABLE 1
Child element ID Type(s)
0 xxx
1 xxx
xx Panel on/off state statement
…… Reply acknowledge information of declaration
…… Multilink panel state declaration
…… Duration-based panel power saving declaration
…… Pattern-based panel power saving declaration
255 xxx
Illustratively, the first panel information may be a subelement, and fig. 22 is a schematic structural diagram of the first panel information provided in the embodiment of the present application. Referring to fig. 22, the frame structure of the first panel information is defined as follows:
1. sub-element ID: representing the order of the sub-elements in the dynamic increase and decrease support element, as shown in table 1;
2. length L: representing the total length (unit: byte) of the subelement;
3. switch state (On-off status ): using a bit map form to represent the switch states of the panels, wherein the first x bits represent the switch states of all the antenna panels equipped on the equipment, and the back is 0;
4. Maximum supported number (maximum mquipped panel number, max Equ P Num): the number of antenna panels representing the maximum support of the device is generally considered to be the device itself with the transceiving capability of the antenna, and therefore the value of this maximum support number is equal to the number of antenna panels that can be assembled at most plus 1 (optionally);
5. number of equipped panels (equipped panel number): representing the number of panels currently equipped by the device sending the child element, which is equal to the number of panels currently equipped by the device plus 1 (where the default device should be equipped with at least one panel, but could also represent 0 panels);
6. panel List presence indication (P ID list exist), P ID List Exi: indicating whether a panel ID list exists behind (optionally);
7. request or response (request or response, req or Resp): indicating whether the sub-element is present in the request frame or the response frame (optionally);
8. panel ID list: identifying the number of the specific panel; the ID length of each panel may be 8 bits, or may be set to 3 bits or other numbers of bits (optionally) depending on other requirements.
Illustratively, fig. 23 is a schematic structural diagram of reply acknowledge information of a claim included in a claim acknowledge frame according to an embodiment of the present application. Referring to fig. 23, the frame structure of the first panel information is defined as follows:
1. Sub-element ID: representing the order of the sub-elements in the dynamic increase and decrease support element;
2. length L: representing the total length (unit: byte) of the subelement;
3. acknowledgement (Ack): a value of 1 indicates that receipt of the first panel status information is confirmed, or that a change in the multi-panel status is accepted; a value of 0 indicates rejection of the multi-panel state change.
In this embodiment of the present application, the first access point device may serve multiple links, where the target link is one link where the station device served by the first access point device is located, and the first access point device may inform the station device of information of an antenna panel used when serving the target link.
Optionally, after the first access point device sends the association response frame to the station device, the second panel state declaration frame may also be sent to the station device, where the second panel state declaration frame carries the first link state information. The first link state information includes an identifier of a target link, and an identifier of an antenna panel used when the first access point device serves the target link, where the target link is a link where the station device is located.
Optionally, after the first access point device sends the second plane state declaration frame to the station device, the declaration confirmation frame sent by the station device may also be received, where the declaration confirmation frame is used to instruct the station device to confirm that the second plane state declaration frame is received.
Fig. 24 is a schematic structural diagram of first link state information according to an embodiment of the present application. Referring to fig. 24, the first link state information is a subelement, and the frame structure of the first panel state information is defined as follows:
1. sub-element ID: representing the order of the sub-elements in the dynamic increase and decrease support element;
2. length L: representing the total length (unit: byte) of the subelement;
3. multilink ID (ML ID): representing the link ID using the following antenna panel, i.e. the identity of the target link;
4. antenna panel ID: the ID length of each antenna panel may be 8 bits, or may be set to 3 bits or other numbers of bits according to other requirements.
Optionally, the first access point device may broadcast panel state information corresponding to each link served by the first access point device, that is, the first access point device may broadcast a third panel state declaration frame through multiple antenna panels, where the third panel state declaration frame carries the second link state information. The second link state information includes an identifier of one or more links, and an identifier of an antenna panel used when the first access point device serves each of the one or more links, where the one or more links include a target link, and the target link is a link where the station device is located.
The second link state information is illustratively a subelement, and the second link state information includes an identification of the antenna panel used for each link, which may be immediately subsequent to the identification of the corresponding link.
Optionally, the first link state information may further include a transmission power and/or a transmission angle of an antenna panel used when the first access point device serves the target link, and the second link state information may also include a transmission power and/or a transmission angle of an antenna panel used when the first access point device serves each link.
In this embodiment of the present application, the first access point device may also notify the station device of information about the antenna panel to be used when changing the status of each antenna panel to save panel power. That is, after the first access point device sends the association response frame to the station device, the fourth panel state declaration frame may also be sent to the station device, where the fourth panel state declaration frame carries panel increase and decrease information.
The panel increasing and decreasing information comprises a starting time, a duration and second panel state information, wherein the panel increasing and decreasing information is used for indicating the first access point equipment to serve the station equipment according to the second panel state information in the duration from the starting time, and the second panel state information is used for indicating a combination mode of the switch states of the plurality of antenna panels; alternatively, the panel increase/decrease information includes third panel information indicating one of various combinations of the switch states of the plurality of antenna panels, the panel increase/decrease information indicating that the first access point device switches to serve the station device according to the third panel information.
From the foregoing, it can be appreciated that the declaration information type of the device may be a duration-based panel power saving declaration or a mode-based panel power saving declaration, and based on this, the embodiment of the application defines two sub-elements to represent panel increase and decrease information carried by the two declarations respectively. Wherein the panel increase/decrease information represented by the sub-element defining the duration-based panel power saving declaration includes a start time, a duration, and second panel state information, and the panel increase/decrease information represented by the sub-element defining the pattern-based panel power saving declaration includes third panel state information.
Fig. 25 is a schematic structural diagram of panel increasing/decreasing information according to an embodiment of the present application. Referring to fig. 25, the panel increase/decrease information is a sub-element, and the frame structure of the panel increase/decrease information is defined as follows:
1. sub-element ID: representing the order of the sub-elements in the dynamic increase and decrease support element;
2. length L: representing the total length (unit: byte) of the subelement;
3. start Time (ST): the time unit of the change of the switch state of the panel of the equipment can be contracted into a second, a millisecond, a microsecond or other constant time unit;
4. Duration (KT): the length of time the device is to maintain the panel switch state after modification may be agreed to be seconds, milliseconds, microseconds, or other constant units of time;
5. panel switch state: the second panel state information indicates the on-off state of the panel using a bit map format, and the first x bits indicate the on-off state of each antenna panel currently equipped on the device, followed by 0.
Fig. 26 is a schematic structural diagram of another panel increasing/decreasing information according to an embodiment of the present application. Referring to fig. 26, the panel increase/decrease information is one sub-element, and the frame structure of the panel increase/decrease information is defined as follows:
1. sub-element ID: representing the order of the sub-elements in the dynamic increase and decrease support element;
2. length L: representing the total length (unit: byte) of the subelement;
3. old Mode (OM): the multi-panel of the device originally adopts a power saving mode (optionally);
4. new Mode (NM): and third panel information, a power saving mode to be adopted by a multi-panel of the device, and the mode takes effect immediately after the information is broadcast by default.
In addition to the information declaration method using elements, the embodiment of the present application may also use the a-control field located in HE variant HT Control field to declare information. Table 2 shows the Control ID value of the a-Control field, table 3 shows the type value of the panel energy saving increase/decrease declaration frame structure based on the a-Control field, and fig. 27 shows the declaration frame structure of the panel increase/decrease information based on the a-Control field.
TABLE 2
Figure BDA0002424176750000231
TABLE 3 Table 3
Type value Type(s)
00 Duration mode
01 New and old change mode
10 Reservation of
11 Reservation of
The definition of the declaration frame structure of the panel increase/decrease information shown in fig. 27 is as follows:
1. type (T): as shown in Table 3, the duration mode is indicated when the type is 00, where B3-B18 is active and B19-B26 are not meaningful; when the type is 01, the new and old change modes are represented, B3-B18 has no meaning, and B19-B26 are valid, and when the field is other value, the new and old change modes are reserved;
2. starting time: the notification validation time is a time period from the receipt of the information, the specific time value is the display value of the domain, and the time unit can be contracted into seconds, milliseconds, microseconds or other constant time units;
3. duration of time: the time unit of the change of the switch state of the panel of the equipment can be contracted into a second, a millisecond, a microsecond or other constant time unit;
4. panel switch state: second panel state information, representing the switch state of the panel by using a bit map form, wherein the first x bits represent the switch state of each antenna panel currently equipped on the device, and the back is set with 0;
5. new mode: a third panel status information, a power saving mode to be employed by the multi-antenna panel of the device, the mode being effective upon default broadcasting the information;
6. Old mode: the multi-antenna panel of the device originally employed a power saving mode (optionally).
In order to further improve the capability of the multi-antenna panel, the embodiments of the present application further provide a method for controlling the antenna panel status of other devices, so as to control the panel switch status, the transmission power, the transmission angle, etc. of the other devices, so as to better utilize the multi-antenna panel. The first access point device may control the switch states of the antenna panels included in the station device, and the station device may also request to control the switch states of the antenna panels included in the first access point device. When the first access point device is a master access point device in the access point cooperation group, the master access point device may also control the switch states of the antenna panels included in the slave access point device, and the slave access point device may also request to control the switch states of the antenna panels included in the master access point device.
Next, taking a case that the master access point device controls the switch states of the antenna panels included in the slave access point device as an example, a method for controlling the states of the antenna panels of other devices provided in the embodiments of the present application will be described.
In this embodiment of the present application, the first access point device is a master access point device in the access point cooperative group, where the access point cooperative group further includes one or more slave access point devices, the first access point device may send a first panel state control frame to the second access point device, where the first panel state control frame carries panel switch indication information, panel sending power information, and/or panel sending angle information, where the panel switch indication information is used to indicate that the first access point device desires to control opening or closing of each of multiple antenna panels on the second access point device, and the panel sending power information and the panel sending angle information are respectively used to indicate that the first access point device desires to control sending power and sending angle corresponding to each of multiple antenna panels on the second access point device, where the second access point device is one of the one or more slave access point devices. The first access point device may receive a control response frame sent by the second access point device, where the control response frame is used to instruct the second access point device to accept or reject control of the first access point device.
Fig. 28 is a flowchart of a method for controlling the antenna panel status of other devices according to an embodiment of the present application. The first access point device is a master access point device (master AP) in the access point cooperative group and the second access point device is one of one or more slave access point devices (slave APs). Referring to fig. 28, the first access point device may transmit a first panel control frame to the second access point device in hope of controlling the respective antenna panels of the second access point device, and the second access point device may transmit a control response frame to the first access point device to instruct the second access point device to accept or reject the control of the first access point device.
It should be noted that, in this embodiment of the present application, the first access point device may obtain an interference management result through processes such as channel measurement, or interference relationships between each second access point device and station devices in the network, and between each antenna panel on each second access point device, through centralized computation and interference management optimization, and determine panel switch indication information, panel transmit power information, and/or panel transmit angle information according to the interference management result, so as to expect to control on or off of each antenna panel in multiple antenna panels on the second access point device, and transmit power and transmit angle corresponding to each antenna panel. The specific channel measurement method may be set according to actual requirements, which is not limited in the embodiment of the present application.
Optionally, the panel switch indication information includes a third bit sequence, where the third bit sequence includes a plurality of third bits, where the plurality of third bits correspond to a plurality of antenna panels on the second access point device one-to-one, and a bit value on each third bit is used to indicate that the first access point device desires to control the corresponding antenna panel on the second access point device to be turned on or off.
In this embodiment of the present application, the first panel state control frame and the control response frame may be newly defined frames, or panel switch indication information, panel transmission power information and/or panel transmission angle information may be defined in control frames and management frames defined in IEEE Std 802.11TM-2012, that is, the panel switch indication information, the panel transmission power information and/or the panel transmission angle information may be an element or a sub-element.
Table 4 shows several sub-elements and corresponding information types as defined in the embodiments of the present application. Referring to table 4, the types of several sub-elements newly defined are panel switch state control, panel transmit power control, and panel transmit angle control, respectively.
TABLE 4 Table 4
Child element ID Type(s)
0 xxx
1 xxx
xx Panel on-off state control
…… Panel transmit power control
…… Panel sending angle control
255 xxx
Fig. 29 is a schematic structural diagram of a first panel control frame according to an embodiment of the present application, where the frame structure is defined as follows:
1. sub-element ID: representing the order of the sub-elements in the dynamic increase and decrease support element;
2. length L: representing the total length (unit: byte) of the subelement;
3. command type (T): as shown in table 5, using 2 bits, a type value of 00 indicates a command issued by the master AP, a type value of 01 indicates a command issued by the AP, a type value of 10 indicates a request issued by the STA, and a type value of 00 is a reserved value;
4. information type (information type, info T): as shown in table 6, the type of the subsequent information is represented using 3 bits, wherein: the 1 st bit value is 1, which means that the panel identifier is contained, the 2 nd bit value is 1, which means that the transmission power is contained, and the 3 rd bit value is 1, which means that the transmission angle is contained; accordingly, a value of 0 indicates no inclusion;
5. link identification ID: indicating that the panel switch status used by the link will be required to be set in a subsequent manner;
6. switch indication (on-off bit): panel switch indication information, namely a third bit sequence, and a switch state indication of multiple panels, wherein a 1 st bit value is 1, and the 1 st antenna panel in the panel list is opened (a value of 0 represents closed), and so on, and an n th bit value is 1, and the n th panel in the panel list is opened (a value of 0 represents closed); when the 1 st bit value of the information type is 1, the panel list is a list formed by a plurality of panel IDs in the subsequent information, and when the value is 0, the panel list is a default panel list of the receiving end;
7. Panel list: the identification of each antenna panel on the device which is expected to be controlled, the length of each panel identification can be 8 bits, and can be set to 3 bits or other bit numbers according to other requirements;
8. transmit power (TX Po): the panel transmitting power information, the transmitting power of the corresponding antenna panel, the unit is dBm, the corresponding bit number can be set according to the precision requirement;
9. transmission angle (TX Ang): the panel sends angle information, the maximum range of the sending angle of the corresponding antenna panel is radian, and the corresponding bit number can be set according to the precision requirement.
TABLE 5
Figure BDA0002424176750000251
Figure BDA0002424176750000261
TABLE 6
Information type value Type(s)
1xx Comprising panel identification
x1x Comprising transmission power
xx1 Including the angle of transmission
According to the method for controlling the antenna panel states of other devices, the panel switch control, the transmission power control and/or the transmission angle control of the multi-antenna panel of the slave access point device by the master access point device can be achieved, and therefore interference control and management in the access point cooperative group are achieved. The method can also realize panel switch control, transmission power control and/or transmission angle control between the antenna panels of the access point equipment and the station equipment, thereby realizing interference control and management.
It should be noted that, the method for controlling the switch state of the antenna panel on other devices may use multiple links as dimensions to control, that is, in the implementation manner, each link in the multiple links may be used as a unit to control or request to control, or all links may be used as a unit to control or request to control. For example, the station device may request control of the switch state of an antenna panel used when a target link is serviced on the access point device, and for example, the master access point device may control the switch state of an antenna panel used when a link is serviced on the slave access point device.
In addition to the above description, the embodiment of the present application further provides a method for declaring panel plug information or panel state change on a device, so that when the antenna panel state of the device changes, a change message is timely notified to other devices, so that the other devices can timely know the transmission capability of the current peer device, and change the panel state of the device or control the panel state of the other devices better, so as to ensure the communication quality. The declaration may be a declaration between the access point device and the station device, or a declaration between the master access point device and the slave access point device. This is described next in terms of a declaration between the master access point device and the slave access point device.
In the embodiment of the present application, the first access point device is a master access point device in the access point cooperative group, and the second access point device is a slave access point device. In the case that the pluggable antenna panel or the assembled antenna panel in the second access point device is turned on or off, the second access point device may send a panel state change frame to the first access point device, and the first access point device may receive the panel state change frame sent by the second access point device, where the panel state change frame is used to indicate the antenna panel with the panel state changed in the second access point device, and the panel state change refers to the opening or closing of the pluggable antenna panel, or the antenna panel.
If it is determined that one antenna panel is inserted into the second access point device through the panel state change frame, the first access point device may transmit a panel state command frame to the second access point device, the panel state command frame being used to instruct the second access point device to turn on or off the inserted antenna panel.
Optionally, if it is determined by the panel state change frame that one antenna panel is unplugged from the second access point device, the first access point device sends a panel state response frame to the second access point device, where the panel state response frame is used to indicate that the first access point device has accepted the antenna panel unplugged from the second access point device.
In this embodiment of the present application, if one antenna panel is inserted or removed from the second access point device, or an assembled antenna panel is turned on or off, the second access point device may send a panel state change frame to the first access point device, where the panel state change frame may carry the number of panels with changed states and the identification of the antenna panel with changed states.
Illustratively, fig. 30 is a schematic structural diagram of a panel state change frame according to an embodiment of the present application. The panel state change frame is one subelement, and the frame structure of the panel state change frame is defined as follows:
1. sub-element ID: representing the order of the sub-elements in the dynamically increasing and decreasing support element.
2. Length L: representing the total length (unit: byte) of the subelement;
3. change type T: as shown in table 7, including panel addition, panel removal, panel opening, panel closing;
4. number of changes Num: the number of panel state changes at this time, namely the number of inserted panels, the number of pulled out panels or the number of panels with the antenna panel changed in the opening or closing state;
5. panel ID: the ID length of each panel may be 8 bits, or may be set to 3 bits or other numbers of bits, depending on other requirements.
TABLE 7
Changing type values Type(s)
00 Panel addition
01 Panel removal
10 Panel opening
11 Panel closing
Optionally, in the case that it is determined by the panel state change frame that one antenna panel is inserted into the second access point device, before the first access point device sends the panel state command frame to the second access point device, the first access point device may send an acknowledgement frame to the second access point device, where the acknowledgement frame is used to indicate that the first access point device has received a message that the antenna panel is inserted into the second station device, and then send a channel measurement frame to the second access point device to instruct the second access point device to perform channel measurement on the inserted antenna panel. Then, the first access point device may receive the channel measurement result sent by the second access point device, and send a panel status command frame to the second access point device according to the channel measurement result.
In this embodiment of the present application, the first access point device may instruct the second access point device to perform evaluation on the inserted antenna panel, for example, perform channel measurement, and send a panel status command frame to the second access point device according to the evaluation result after the evaluation, so as to instruct the second access point device to open or close the inserted antenna panel.
Fig. 31 is a flowchart of a method for declaring a status change of a panel on a device according to an embodiment of the present application. Referring to fig. 31, a first access point device is a master access point device (master AP) in an access point cooperative group, a second access point device is a slave access point device (slave AP) in the access point cooperative group, after inserting an antenna panel from the access point device, the master access point device sends a panel state change frame to the master access point device, and the master access point device may send an acknowledgement frame to the slave access point device and then send a channel measurement frame to the slave access point device to instruct the slave access point device to perform channel measurement on the inserted antenna panel, that is, the master access point device initiates a channel measurement procedure (sounding). The slave access point device may obtain a channel measurement result after measuring the channel quality between the inserted antenna panel and the master access point device and the interference relationship between its own antenna panel, and transmit the channel measurement result to the master access point device. The master access point device may determine that the second access point device is expected to turn on or off the inserted antenna panel according to the channel measurement result, and send a panel status command frame to the slave access point device to instruct the second access point device to turn on or off the inserted antenna panel. Optionally, the slave access point device may also send a command reply frame to the master access point device after receiving the panel status command frame, in response to the command of the master access point device. The specific channel measurement method may be set according to actual requirements, which is not limited in the embodiment of the present application.
Alternatively, the frame structure of the panel status command frame may be the same as that of the aforementioned control response frame. Alternatively, the frame structure of the panel state command frame may also be redefined.
Illustratively, the panel status command frame is a subelement, and fig. 32 is a schematic structural diagram of a panel status command frame according to an embodiment of the present application. Referring to fig. 32, the frame structure of the panel status command frame is defined as follows:
1. sub-element ID: representing the order of the sub-elements in the dynamically increasing and decreasing support element.
2. Length L: representing the total length (unit: byte) of the subelement;
3. removal confirmation: acknowledgement bit for removed antenna panel, 1: represents confirmation, 0: indicating no confirmation;
4. insertion confirmation: acknowledgement bits for inserted antenna panel, 1: represents confirmation, 0: indicating no confirmation;
5. immediately or with a delay of opening: indicating whether the inserted antenna panel is controlled to be opened immediately or delayed, 1: indicating immediate open, 0: indicating a delayed opening.
It should be noted that, the method for declaring panel plug information or panel state change on the device provided by the embodiment of the present application is applied between the master access point device and the slave access point device, which is helpful for the master access point device to uniformly schedule multiple antenna panels of all the slave access point devices, so as to achieve the purpose of interference management.
In summary, in the embodiment of the present application, the access point device includes a plurality of antenna panels, the station device may send an association request frame to the access point device after receiving the beacon frames broadcast by the access point device through the plurality of antenna panels, and the access point device may send an association response frame to the station device to associate the station device. The association request frame carries preference panel information, the preference panel information is determined according to the beacon frame and is used for indicating an antenna panel used when the access point device is expected to serve the station device, and the association response frame is used for indicating an antenna panel actually used when the access point device serves the station device. Therefore, in the process of associating the site equipment with the access point equipment, the site equipment can propose advice to the access point equipment, and the access point equipment can respond to the advice to the site equipment, so that the access point equipment can use the most suitable antenna panel to serve the site equipment after association, the capacity of the multi-antenna panel is fully utilized, and therefore efficient data transmission is achieved, and throughput is improved.
Fig. 33 is a schematic structural diagram of an apparatus 3300 associated with an access point device according to an embodiment of the present application, where the apparatus 3300 associated with an access point device may be implemented by software, hardware, or a combination of both as part or all of the access point device, and the access point device may be the access point device shown in fig. 1. The description will be made with the apparatus of the access point device applied to the first access point device, which includes a plurality of antenna panels, each of which is provided with a plurality of antennas. Referring to fig. 33, the apparatus 3300 includes: a broadcasting module 3301, a first receiving module 3302, and a first transmitting module 3303.
A broadcasting module 3301 for broadcasting beacon frames through the plurality of antenna panels;
the first receiving module 3302 is configured to receive an association request frame sent by a station device, where the association request frame carries preference panel information, the preference panel information is used to indicate one or more first antenna panels, the first antenna panel is an antenna panel used when the first access point device is expected to serve the station device, and the preference panel information is determined by the station device according to the beacon frame;
the first sending module 3303 is configured to send an association response frame to the station device to associate the station device with the first access point device, where the association response frame is used to indicate one or more second antenna panels, the second antenna panels are antenna panels actually used when the first access point device serves the station device, and the one or more second antenna panels are determined by the first access point device according to the preference panel information.
Optionally, the preference panel information includes an identification of the one or more first antenna panels; or alternatively, the process may be performed,
the preference panel information includes a first bit sequence including a plurality of first bits corresponding one-to-one to the plurality of antenna panels, a bit value on each first bit indicating whether the corresponding antenna panel is a first antenna panel.
Optionally, the apparatus 3300 further comprises:
a determining module for determining service panel information according to the preference panel information, the service panel information being for indicating the one or more second antenna panels;
in the event that the one or more first antenna panels are different from the one or more second antenna panels, the associated reply frame carries service panel information.
Optionally, the service panel information includes an identification of the one or more second antenna panels; or alternatively, the process may be performed,
the service panel information includes a second bit sequence including a plurality of second bits, the plurality of second bits corresponding to the plurality of antenna panels one-to-one, and a bit value on each second bit is used to indicate whether the corresponding antenna panel is the second antenna panel.
Optionally, the association request frame further carries signal energy indication information for indicating that the station apparatus receives signal energy of the beacon frame through each of the one or more first antenna panels.
Optionally, the association reply frame further carries antenna number indication information, where the antenna number indication information is used to indicate the number of antennas on each of the one or more second antenna panels.
Optionally, the apparatus 3300 further comprises:
the second sending module is used for sending a data frame to the station equipment, the data frame carries transmission mode indication information, the transmission mode indication information is used for indicating whether the transmission mode of the data frame is a multi-panel joint transmission mode or a single-panel transmission mode, and an antenna panel used for transmitting the data frame.
Optionally, the broadcasting module 3301 is specifically configured to:
broadcasting a first beacon frame through one or more third antenna panels at a first moment, broadcasting a second beacon frame through one or more fourth antenna panels at a second moment, wherein the first beacon frame is a beacon frame which does not support MP MIMO, the second beacon frame is a beacon frame which supports MP MIMO, the first moment is the same as or different from the second moment, the third antenna panel is one antenna panel of the plurality of antenna panels, and the one or more fourth antenna panels are antenna panels of the plurality of antenna panels except for the one or more third antenna panels;
wherein the first beacon frame carries an identity of a first BSS created through the one or more third antenna panels, and the second beacon frame carries an identity of a second BSS, different from the identity of the first BSS, created through the one or more fourth antenna panels.
Optionally, the apparatus 3300 further comprises:
the second receiving module is used for receiving a panel state acquisition request frame sent by the station equipment, wherein the panel state acquisition request frame is used for requesting to acquire the switch states of the plurality of antenna panels;
and the third sending module is used for sending a panel state response frame to the station equipment, wherein the panel state response frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
Optionally, the apparatus 3300 further comprises:
and the fourth sending module is used for sending a first panel state statement frame to the station equipment, wherein the first panel state statement frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
Optionally, the apparatus 3300 further comprises:
a fifth sending module, configured to send a second plane state declaration frame to the station device, where the second plane state declaration frame carries the first link state information;
the first link state information includes an identifier of a target link, and an identifier of an antenna panel used when the first access point device serves the target link, where the target link refers to a link where the station device is located.
Optionally, the broadcasting module 3301 is further configured to:
broadcasting a third panel state declaration frame through the plurality of antenna panels, wherein the third panel state declaration frame carries second link state information;
the second link state information includes an identifier of one or more links, and an identifier of an antenna panel used when the first access point device serves each of the one or more links, where the one or more links include a target link, and the target link is a link where the station device is located.
Optionally, the apparatus 3300 further comprises:
a sixth sending module, configured to send a fourth panel state declaration frame to the station device, where the fourth panel state declaration frame carries panel increase and decrease information;
the panel increasing and decreasing information comprises a starting time, a duration and second panel state information, wherein the panel increasing and decreasing information is used for indicating the first access point equipment to serve the station equipment according to the second panel state information in the duration from the starting time, and the second panel state information is used for indicating a combination mode of the switch states of the plurality of antenna panels; or alternatively, the process may be performed,
the panel increase/decrease information includes third panel information indicating one of various combinations of the switch states of the plurality of antenna panels, the panel increase/decrease information indicating that the first access point device switches to serve the station device according to the third panel information.
Optionally, the first access point device is a master access point device in an access point cooperation group, and the access point cooperation group further includes one or more slave access point devices;
the apparatus 3300 further comprises:
a seventh transmitting module, configured to transmit a first panel-like control frame to a second access point device, where the first panel-like control frame carries panel switch indication information, panel transmission power information, and/or panel transmission angle information, where the panel switch indication information is used to indicate that the first access point device desires to control on or off of each of a plurality of antenna panels on the second access point device, and the panel transmission power information and the panel transmission angle information are respectively used to indicate that the first access point device desires to control on or off of each of a plurality of antenna panels on the second access point device, where the second access point device is one of the one or more slave access point devices;
and the third receiving module is used for receiving a control response frame sent by the second access point device, and the control response frame is used for indicating the second access point device to accept or reject the control of the first access point device.
Optionally, the panel switch indication information includes a third bit sequence, where the third bit sequence includes a plurality of third bits, where the plurality of third bits correspond to a plurality of antenna panels on the second access point device one-to-one, and a bit value on each third bit is used to indicate that the first access point device desires to control the corresponding antenna panel on the second access point device to be turned on or off.
Optionally, the first access point device is a master access point device in an access point cooperation group, and the access point cooperation group further includes one or more slave access point devices;
the apparatus 3300 further comprises:
a fourth receiving module, configured to receive a panel state change frame sent by the second access point device, where the panel state change frame is used to indicate an antenna panel with a changed panel state in the second access point device, where the panel state change refers to plugging the antenna panel, or opening or closing the antenna panel, and the second access point device is one of the one or more slave access point devices;
and an eighth transmitting module, configured to, if it is determined by the panel state change frame that one antenna panel is inserted into the second access point device, transmit a panel state command frame to the second access point device, where the panel state command frame is used to instruct the second access point device to turn on or off the inserted antenna panel.
Optionally, the eighth sending module is specifically configured to:
transmitting an acknowledgement frame to the second access point device;
transmitting a channel measurement frame to the second access point device to instruct the second access point device to perform channel measurement on the inserted antenna panel;
receiving a channel measurement result sent by second access point equipment;
And sending a panel state command frame to the second access point device according to the channel measurement result.
In the embodiment of the application, the access point device includes a plurality of antenna panels, the station device may send an association request frame to the access point device after receiving the beacon frames broadcast by the access point device through the plurality of antenna panels, and the access point device may send an association response frame to the station device to associate the station device. The association request frame carries preference panel information, the preference panel information is determined according to the beacon frame and is used for indicating an antenna panel used when the access point device is expected to serve the station device, and the association response frame is used for indicating an antenna panel actually used when the access point device serves the station device. Therefore, in the process of associating the site equipment with the access point equipment, the site equipment can propose advice to the access point equipment, and the access point equipment can respond to the advice to the site equipment, so that the access point equipment can use the most suitable antenna panel to serve the site equipment after association, the capacity of the multi-antenna panel is fully utilized, and therefore efficient data transmission is achieved, and throughput is improved.
It should be noted that: in the apparatus for associating an access point device according to the above embodiment, only the division of the above functional modules is used for illustration, and in practical application, the above functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the apparatus is divided into different functional modules, so as to perform all or part of the functions described above. In addition, the related access point device and the related access point device method embodiment provided in the foregoing embodiments belong to the same concept, and detailed implementation processes of the related access point device and the related access point device method embodiment are detailed in the method embodiment, which is not repeated herein.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, data subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital versatile disk (digital versatile disc, DVD)), or a semiconductor medium (e.g., solid State Disk (SSD)), etc. It is noted that the computer readable storage medium mentioned in the present application may be a non-volatile storage medium, in other words, may be a non-transitory storage medium.
The above embodiments are provided for the purpose of not limiting the present application, but rather, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims (33)

1. A method of associating access point devices, wherein a first access point device comprises a plurality of antenna panels, each of the plurality of antenna panels having a plurality of antennas disposed thereon, the method comprising:
the first access point device broadcasting a beacon frame through the plurality of antenna panels;
the first access point device receives an association request frame sent by a station device, wherein the association request frame carries preference panel information, the preference panel information is used for indicating one or more first antenna panels, the first antenna panels are antenna panels used when the first access point device is expected to serve the station device, and the preference panel information is determined by the station device according to the beacon frame;
the first access point device evaluates one or more first antenna panels indicated by the preference panel information according to the transmitting power and transmitting angle of each antenna panel assembled by the first access point device, the interference relation between the antenna panels of the first access point device and the interference relation between the antenna panels of other devices to obtain service panel information, wherein the service panel information is used for indicating one or more second antenna panels, and the second antenna panels are actually used when the first access point device serves the station device;
The first access point device sends an association response frame to the station device to associate the station device with the first access point device, wherein the association response frame is used for indicating the one or more second antenna panels; the association response frame carries the service panel information in case the one or more first antenna panels are different from the one or more second antenna panels.
2. The method of claim 1, wherein the preference panel information includes an identification of the one or more first antenna panels; or alternatively, the process may be performed,
the preference panel information includes a first bit sequence including a plurality of first bits, the plurality of first bits corresponding to the plurality of antenna panels one-to-one, a bit value on each first bit being used to indicate whether a corresponding antenna panel is the first antenna panel.
3. The method of claim 1, wherein the service panel information includes an identification of the one or more second antenna panels; or alternatively, the process may be performed,
the service panel information comprises a second bit sequence, the second bit sequence comprises a plurality of second bits, the second bits are in one-to-one correspondence with the antenna panels, and a bit value on each second bit is used for indicating whether the corresponding antenna panel is the second antenna panel.
4. A method as recited in any of claims 1-3, wherein the association request frame further carries signal energy indication information for indicating signal energy of the beacon frame received by the station device through each of the one or more first antenna panels.
5. The method of any of claims 1-4, wherein the association response frame further carries antenna number indication information indicating a number of antennas on each of the one or more second antenna panels.
6. The method of claim 1, wherein after the first access point device sends an association reply frame to the station device, further comprising:
the first access point device sends a data frame to the station device, wherein the data frame carries transmission mode indication information, and the transmission mode indication information is used for indicating whether the transmission mode of the data frame is a multi-panel joint transmission mode or a single-panel transmission mode and indicating an antenna panel for transmitting the data frame.
7. The method of claim 1, wherein the first access point device broadcasts a beacon frame through the plurality of antenna panels, comprising:
The first access point device broadcasts a first beacon frame through one or more third antenna panels at a first moment, broadcasts a second beacon frame through one or more fourth antenna panels at a second moment, wherein the first beacon frame is a beacon frame which does not support MP MIMO, the second beacon frame is a beacon frame which supports MP MIMO, the first moment is the same as or different from the second moment, the third antenna panel is one antenna panel in the plurality of antenna panels, and the one or more fourth antenna panels are antenna panels in the plurality of antenna panels except the one or more third antenna panels;
wherein the first beacon frame carries an identity of a first basic service set, BSS, the first BSS being created by the one or more third antenna panels, the second beacon frame carries an identity of a second BSS, the identity of the second BSS being different from the identity of the first BSS, the second BSS being created by the one or more fourth antenna panels.
8. The method of claim 1, wherein after the first access point device sends an association reply frame to the station device, further comprising:
The first access point device receives a panel state acquisition request frame sent by the station device, where the panel state acquisition request frame is used to request acquisition of switch states of the multiple antenna panels;
the first access point device sends a panel state response frame to the station device, wherein the panel state response frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
9. The method of claim 1, wherein after the first access point device sends an association reply frame to the station device, further comprising:
the first access point device sends a first panel state declaration frame to the station device, wherein the first panel state declaration frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
10. The method of claim 1, wherein after the first access point device sends an association reply frame to the station device, further comprising:
the first access point device sends a second panel state declaration frame to the site device, wherein the second panel state declaration frame carries first link state information;
The first link state information includes an identifier of a target link, and an identifier of an antenna panel used when the first access point device serves the target link, where the target link refers to a link where the station device is located.
11. The method of claim 1, wherein after the first access point device sends an association reply frame to the station device, further comprising:
the first access point device broadcasts a third panel state declaration frame through the plurality of antenna panels, wherein the third panel state declaration frame carries second link state information;
the second link state information includes an identifier of one or more links, and an identifier of an antenna panel used when the first access point device serves each of the one or more links, where the one or more links include a target link, and the target link refers to one link where the station device is located.
12. The method of claim 1, wherein after the first access point device sends an association reply frame to the station device, further comprising:
the first access point device sends a fourth panel state declaration frame to the site device, wherein the fourth panel state declaration frame carries panel increase and decrease information;
The panel increasing and decreasing information comprises a starting time, a duration and second panel state information, wherein the panel increasing and decreasing information is used for indicating a combination mode of the switching states of the plurality of antenna panels, and the first access point equipment serves the station equipment according to the second panel state information in the duration from the starting time; or alternatively, the process may be performed,
the panel increase/decrease information includes third panel information indicating one of various combinations of on/off states of the plurality of antenna panels, the panel increase/decrease information indicating that the first access point device switches to serve the station device according to the third panel information.
13. The method of claim 1, wherein the first access point device is a master access point device in an access point coordination set, the access point coordination set further comprising one or more slave access point devices;
the method further comprises the steps of:
the first access point device sends a first panel-like control frame to a second access point device, wherein the first panel-like control frame carries panel switch indication information, panel sending power information and/or panel sending angle information, the panel switch indication information is used for indicating that the first access point device desires to control on or off of each antenna panel in a plurality of antenna panels on the second access point device, the panel sending power information and the panel sending angle information are respectively used for indicating that the first access point device desires to control sending power and sending angle corresponding to each antenna panel in a plurality of antenna panels on the second access point device, and the second access point device is one of the one or more slave access point devices;
The first access point device receives a control response frame sent by the second access point device, where the control response frame is used to instruct the second access point device to accept or reject control of the first access point device.
14. The method of claim 13, wherein the panel switch indication information comprises a third bit sequence comprising a plurality of third bits that are in one-to-one correspondence with a plurality of antenna panels on the second access point device, a bit value on each third bit being used to indicate that the first access point device desires to control a corresponding antenna panel on the second access point device to be turned on or off.
15. The method of claim 1, wherein the first access point device is a master access point device in an access point coordination set, the access point coordination set further comprising one or more slave access point devices;
the method further comprises the steps of:
the first access point device receives a panel state change frame sent by a second access point device, wherein the panel state change frame is used for indicating an antenna panel with a panel state change in the second access point device, the panel state change refers to the opening or closing of the antenna panel, and the second access point device is one of the one or more slave access point devices;
And if the panel state change frame determines that one antenna panel is inserted into the second access point device, the first access point device sends a panel state command frame to the second access point device, wherein the panel state command frame is used for indicating the second access point device to open or close the inserted antenna panel.
16. The method of claim 15, wherein in the event that it is determined by the panel state change frame that an antenna panel is inserted in the second access point device, the first access point device further comprises, prior to transmitting a panel state command frame to the second access point device:
the first access point device sends an acknowledgement frame to the second access point device;
the first access point device sends a channel measurement frame to the second access point device to instruct the second access point device to perform channel measurement on the inserted antenna panel;
the first access point device receives a channel measurement result sent by the second access point device;
and the first access point device executes the step of sending a panel state command frame to the second access point device according to the channel measurement result.
17. An apparatus for associating an access point device, the apparatus being adapted for use with a first access point device, the first access point device comprising a plurality of antenna panels, each of the plurality of antenna panels having a plurality of antennas disposed thereon, the apparatus comprising:
a broadcasting module for broadcasting beacon frames through the plurality of antenna panels;
the first receiving module is used for receiving an association request frame sent by a station device, wherein the association request frame carries preference panel information, the preference panel information is used for indicating one or more first antenna panels, the first antenna panels are antenna panels used when the first access point device is expected to serve the station device, and the preference panel information is determined by the station device according to the beacon frame;
the determining module is used for evaluating one or more first antenna panels indicated by the preference panel information according to the transmitting power and transmitting angle of each antenna panel assembled by the determining module, the interference relation between the antenna panels of the determining module and the interference relation between the antenna panels of other equipment to obtain service panel information, wherein the service panel information is used for indicating one or more second antenna panels, and the second antenna panels are antenna panels actually used when the first access point equipment serves the station equipment;
A first sending module, configured to send an association response frame to the station device, to associate the station device with the first access point device, where the association response frame is used to indicate the one or more second antenna panels; the association response frame carries the service panel information in case the one or more first antenna panels are different from the one or more second antenna panels.
18. The apparatus of claim 17, wherein the preference panel information includes an identification of the one or more first antenna panels; or alternatively, the process may be performed,
the preference panel information includes a first bit sequence including a plurality of first bits, the plurality of first bits corresponding to the plurality of antenna panels one-to-one, a bit value on each first bit being used to indicate whether a corresponding antenna panel is the first antenna panel.
19. The apparatus of claim 17, wherein the service panel information includes an identification of the one or more second antenna panels; or alternatively, the process may be performed,
the service panel information comprises a second bit sequence, the second bit sequence comprises a plurality of second bits, the second bits are in one-to-one correspondence with the antenna panels, and a bit value on each second bit is used for indicating whether the corresponding antenna panel is the second antenna panel.
20. The apparatus of any of claims 17-19, wherein the association request frame further carries signal energy indication information for indicating signal energy of the beacon frame received by the station device through each of the one or more first antenna panels.
21. The apparatus of any of claims 17-20, wherein the association response frame further carries antenna number indication information indicating a number of antennas on each of the one or more second antenna panels.
22. The apparatus of claim 17, wherein the apparatus further comprises:
the second sending module is used for sending a data frame to the station equipment, the data frame carries transmission mode indication information, and the transmission mode indication information is used for indicating whether the transmission mode of the data frame is a multi-panel joint transmission mode or a single-panel transmission mode and indicating an antenna panel used for transmitting the data frame.
23. The apparatus of claim 17, wherein the broadcast module is specifically configured to:
broadcasting a first beacon frame through one or more third antenna panels at a first moment, broadcasting a second beacon frame through one or more fourth antenna panels at a second moment, wherein the first beacon frame is a beacon frame which does not support MP MIMO, the second beacon frame is a beacon frame which supports MP MIMO, the first moment is the same as or different from the second moment, the third antenna panel is one antenna panel of the plurality of antenna panels, and the one or more fourth antenna panels are antenna panels of the plurality of antenna panels except the one or more third antenna panels;
Wherein the first beacon frame carries an identity of a first basic service set, BSS, the first BSS being created by the one or more third antenna panels, the second beacon frame carries an identity of a second BSS, the identity of the second BSS being different from the identity of the first BSS, the second BSS being created by the one or more fourth antenna panels.
24. The apparatus of claim 17, wherein the apparatus further comprises:
the second receiving module is used for receiving a panel state acquisition request frame sent by the station equipment, wherein the panel state acquisition request frame is used for requesting to acquire the switch states of the plurality of antenna panels;
and the third sending module is used for sending a panel state response frame to the station equipment, wherein the panel state response frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
25. The apparatus of claim 17, wherein the apparatus further comprises:
and the fourth sending module is used for sending a first panel state statement frame to the station equipment, wherein the first panel state statement frame carries first panel state information, and the first panel state information is used for indicating the switch state of each antenna panel in the plurality of antenna panels.
26. The apparatus of claim 17, wherein the apparatus further comprises:
a fifth sending module, configured to send a second plane state declaration frame to the station device, where the second plane state declaration frame carries first link state information;
the first link state information includes an identifier of a target link, and an identifier of an antenna panel used when the first access point device serves the target link, where the target link refers to a link where the station device is located.
27. The apparatus of claim 17, wherein the broadcast module is further to:
broadcasting a third panel state declaration frame through the plurality of antenna panels, wherein the third panel state declaration frame carries second link state information;
the second link state information includes an identifier of one or more links, and an identifier of an antenna panel used when the first access point device serves each of the one or more links, where the one or more links include a target link, and the target link refers to one link where the station device is located.
28. The apparatus of claim 17, wherein the apparatus further comprises:
A sixth sending module, configured to send a fourth panel state declaration frame to the station device, where the fourth panel state declaration frame carries panel increase and decrease information;
the panel increasing and decreasing information comprises a starting time, a duration and second panel state information, wherein the panel increasing and decreasing information is used for indicating a combination mode of the switching states of the plurality of antenna panels, and the first access point equipment serves the station equipment according to the second panel state information in the duration from the starting time; or alternatively, the process may be performed,
the panel increase/decrease information includes third panel information indicating one of various combinations of on/off states of the plurality of antenna panels, the panel increase/decrease information indicating that the first access point device switches to serve the station device according to the third panel information.
29. The apparatus of claim 17, wherein the first access point device is a master access point device in an access point coordination set, the access point coordination set further comprising one or more slave access point devices;
The apparatus further comprises:
a seventh transmitting module, configured to transmit a first panel-like control frame to a second access point device, where the first panel-like control frame carries panel switch indication information, panel transmission power information and/or panel transmission angle information, where the panel switch indication information is used to indicate that the first access point device desires to control on or off of each of a plurality of antenna panels on the second access point device, and the panel transmission power information and the panel transmission angle information are respectively used to indicate that the first access point device desires to control on or off of each of a plurality of antenna panels on the second access point device, where the second access point device is one of the one or more slave access point devices;
and the third receiving module is used for receiving a control response frame sent by the second access point equipment, and the control response frame is used for indicating the second access point equipment to accept or reject the control of the first access point equipment.
30. The apparatus of claim 29, wherein the panel switch indication information comprises a third sequence of bits comprising a plurality of third bits that are in one-to-one correspondence with a plurality of antenna panels on the second access point device, a bit value on each third bit to indicate that the first access point device desires to control a corresponding antenna panel on the second access point device to be turned on or off.
31. The apparatus of claim 17, wherein the first access point device is a master access point device in an access point coordination set, the access point coordination set further comprising one or more slave access point devices;
the apparatus further comprises:
a fourth receiving module, configured to receive a panel state change frame sent by a second access point device, where the panel state change frame is used to indicate an antenna panel with a panel state change in the second access point device, where the panel state change refers to plugging the antenna panel, or opening or closing the antenna panel, and the second access point device is one of the one or more slave access point devices;
and an eighth transmitting module, configured to, if it is determined by the panel state change frame that an antenna panel is inserted into the second access point device, transmit a panel state command frame to the second access point device, where the panel state command frame is used to instruct the second access point device to open or close the inserted antenna panel.
32. The apparatus of claim 31, wherein the eighth transmitting module is specifically configured to:
transmitting an acknowledgement frame to the second access point device;
Transmitting a channel measurement frame to the second access point device to instruct the second access point device to perform channel measurement on the inserted antenna panel;
receiving a channel measurement result sent by the second access point device;
and sending a panel state command frame to the second access point equipment according to the channel measurement result.
33. A computer-readable storage medium, characterized in that the storage medium has stored therein a computer program which, when executed by a processor, implements the steps of the method of any of claims 1-16.
CN202010215260.6A 2020-03-24 2020-03-24 Method, device and storage medium for associating access point equipment Active CN113452416B (en)

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