WO2021185132A1 - 一种上行协调的通信方法和装置 - Google Patents

一种上行协调的通信方法和装置 Download PDF

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Publication number
WO2021185132A1
WO2021185132A1 PCT/CN2021/079962 CN2021079962W WO2021185132A1 WO 2021185132 A1 WO2021185132 A1 WO 2021185132A1 CN 2021079962 W CN2021079962 W CN 2021079962W WO 2021185132 A1 WO2021185132 A1 WO 2021185132A1
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Prior art keywords
field
basic service
trigger frame
subfield
service set
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PCT/CN2021/079962
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English (en)
French (fr)
Inventor
李云波
特所迪克·根纳季
赫赛斯基·奥伦
于健
郭宇宸
淦明
周逸凡
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020227035830A priority Critical patent/KR20220154212A/ko
Priority to EP21771158.9A priority patent/EP4114078A4/en
Priority to AU2021236725A priority patent/AU2021236725A1/en
Priority to BR112022018592A priority patent/BR112022018592A2/pt
Priority to JP2022556280A priority patent/JP2023518277A/ja
Publication of WO2021185132A1 publication Critical patent/WO2021185132A1/zh
Priority to US17/946,685 priority patent/US20230013161A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • H04W74/06—Scheduled access using polling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • This application relates to the field of communication technology, and in particular to an uplink coordinated communication method and device.
  • An area in a mobile communication network can be covered by multiple access points (AP), and coordination between adjacent access points can improve system efficiency and reduce interference.
  • AP access points
  • a system composed of an access point and multiple associated stations (stations, STAs) is a basic service set (BSS).
  • BSS basic service set
  • each site will select one of the access points for association.
  • the stations in the basic service set or between different basic service sets obtain the right to use the channel through competition.
  • multiple access points can establish an uplink coordination relationship through negotiation and exchange associated parameters in the uplink coordination.
  • the associated parameters can include the sites participating in the coordination and the used by each site. The number of spatial streams, the length of uplink transmission, etc.
  • an access point needs to use an association identifier (AID) when scheduling a station by triggering a frame.
  • the association identifier is unique in a basic service set, but when using a trigger frame to schedule a coordinated set of multiple basic services At the site, because multiple basic service sets are involved, the association identifier is no longer unique.
  • all sites in the coordinated basic service set are required to use unique correlation identifiers. This will cause the number of available correlation identifiers for sites in each basic service set to become smaller, resulting in multiple connections.
  • the maximum number of sites that can be supported in the uplink coordination scenario of the entry point becomes smaller, and all the access points in the coordinated basic service concentration need to negotiate a common correlation identifier space, resulting in a complex transmission process and a low efficiency of coordinated communication. .
  • the embodiments of the present application provide a communication method and device for uplink coordination, which are used to implement communication between an access point and a station in an uplink coordination scenario of multiple access points.
  • an embodiment of the present application provides a communication device, the communication device is applied to a station, and the communication device includes: a transceiver, configured to receive a trigger frame sent by a first access point AP, the trigger frame Used to trigger the station to send a physical layer protocol data unit PPDU based on a trigger frame, the station belongs to a basic service set of a plurality of basic service sets, and the trigger frame includes: identification information of the plurality of basic service sets and The identification information of the station; a processor, configured to determine that the physical layer protocol data unit PPDU based on the trigger frame needs to be sent.
  • the trigger frame generated by the first access point may include: identification information of multiple basic service sets and identification information of the station, and the trigger frame may trigger multiple BSSs to perform uplink coordination, and for the first access point
  • the trigger frame can carry the identification of the station that is triggered in a BSS, so the first access point can independently configure the identification information of the station associated with the first access point, and there is no need to ensure that the stations in multiple BSSs
  • the identification is unique, which increases the flexibility of the first access point to configure the identification information of the station that is triggered, and realizes that the access point and the station communicate in the uplink coordination scenario of multiple access points.
  • an embodiment of the present application provides a communication device, the communication device is applied to a first access point AP, the communication device includes: a processor, configured to generate a trigger frame, the trigger frame is used to trigger A station STA in a plurality of basic service sets BSS sends a physical layer protocol data unit PPDU based on a trigger frame, and the trigger frame includes: identification information of the plurality of basic service sets and identification information of the station; To send the trigger frame to the station.
  • the trigger frame generated by the first access point may include: identification information of multiple basic service sets and identification information of the station, and the trigger frame may trigger multiple BSSs to perform uplink coordination, and for the first access point
  • the trigger frame can carry the identification of the station that is triggered in a BSS, so the first access point can independently configure the identification information of the station associated with the first access point, and there is no need to ensure that the stations in multiple BSSs
  • the identification is unique, which increases the flexibility of the first access point to configure the identification information of the station that is triggered, and realizes that the access point and the station communicate in the uplink coordination scenario of multiple access points.
  • the identification information of the plurality of basic service sets includes at least one of the following: basic service set colors corresponding to the plurality of basic service sets, and basic service set colors corresponding to the plurality of basic service sets.
  • the identification information of the station includes: The associated identifier AID of the site.
  • the identification information of the basic service set has multiple implementation methods.
  • the identification information of the basic service set includes at least one of the following: basic service set color, access point identification corresponding to the basic service set, and basic service set identification , The MAC address of the access point corresponding to the basic service set.
  • the identification information of the basic service set may also be part of the basic service set identification, for example, a part of the basic service set identification is intercepted as the identification information of the basic service set.
  • the identification information of the basic service set can be part of the MAC address of the access point corresponding to the basic service set.
  • the identification information of the station can be implemented in multiple ways.
  • the AID of the STA can be used as the identification information of the STA, and the AID of the STA can be determined by The first AP is allocated to the STA, or the MAC address of the STA is used as the identification information of the STA.
  • the trigger frame includes: a first field and at least one first user information field corresponding to the first field, wherein the first field includes: the plurality of basic service sets The identification information of at least one basic service set; a first user information field includes: identification information of a triggered site in the at least one basic service set; the at least one first user information field is in the trigger frame Located after the first field.
  • the first field included in the trigger frame and at least one first user information field corresponding to the first field can indicate the identification information of multiple basic service sets and the identification information of the triggered site, so that the receiving The station that arrives at the trigger frame obtains the identification information of the basic service set and the station's identification information included in the trigger frame by parsing the first field and the first user information field, so as to accurately determine whether the station has not been triggered. If it is determined that it is a station triggered (or scheduled) by the trigger frame, the station sends a TB PPDU.
  • the first field is carried in the second user information field in the trigger frame; or, the first field is carried in the common information field in the trigger frame; or, The first field is carried in the coordination field in the trigger frame.
  • the first field is carried in the second user information field.
  • the second user information field may be referred to as a special user info field in subsequent embodiments, or The second user information field may be referred to as the user info field of the AID12 subfield with a special value.
  • the first field may be the last field in the public information field, or the first field may be the middle position in the public information field, for the position of the first field in the second user information field.
  • the coordination field may be deployed at the last position in the public information field in the trigger frame, or the coordination field may be deployed after the public information field in the trigger frame. Further, the coordination field is deployed after the common information field in the trigger frame, and the coordination field is adjacent to the common information field.
  • the at least one basic service set does not include the first basic service set corresponding to the first access point.
  • Service set, and the first field is located after the first user information field corresponding to the first basic service set in the trigger frame.
  • the first basic service set corresponding to the first access point is not indicated through the first field, thereby saving the indication overhead of the trigger frame.
  • the trigger frame includes a plurality of the first fields, and at least one first user information field corresponding to the plurality of the first fields respectively.
  • the length of a first field in the trigger frame is fixed. If a first field cannot indicate the identification information of all basic service sets used for uplink coordination, the trigger frame needs to include multiple first fields. In one field, multiple first fields can indicate the identification information of all basic service sets used for uplink coordination, so that the trigger frame can indicate the identification information of all basic service sets used for uplink coordination.
  • the common information field includes: a trigger type subfield and a common information subfield based on the trigger type;
  • the trigger type subfield is used to indicate the trigger type of the trigger frame;
  • the common information subfield based on the trigger type includes: the first field.
  • the common information field in the trigger frame can be used to carry the first field, so that the common information field in the trigger frame can indicate the identification information of all basic service sets used for uplink coordination.
  • the trigger frame further includes: a public information field, and the public information field is used to indicate the information of the trigger frame Trigger type; the coordination field is located after the common information field in the trigger frame.
  • the coordination field in the trigger frame can be used to carry the first field, so that the coordination field in the trigger frame can indicate the identification information of all basic service sets used for uplink coordination.
  • the first field includes: at least one basic service set identification subfield; a basic service set identification subfield used to indicate the information of a basic service set in the at least one basic service set Identification information.
  • the identification information of one basic service set in at least one basic service set can be indicated through the basic service set identification subfield, so that the site can obtain the identification information of the basic service set by parsing the basic service set identification subfield .
  • one basic service set identification subfield in the at least one basic service set identification subfield has a first value, and the first value is used to indicate that the first field does not include The basic service set identifier subfield after the basic service set identifier subfield that takes the first value.
  • the identification information of all basic service sets indicated by the first field can be indicated.
  • the first value is all 0s or all 1s.
  • a basic service set identifier subfield carries a value of all 0s or all 1 1
  • the basic service set identification subfield after the basic service set identification subfield whose value is the first value.
  • the first field includes: at least one user information number subfield; a user information number subfield, used to indicate the first corresponding to one basic service set in the at least one basic service set.
  • the site can parse the number of user information subfields in the first field, and can obtain the number of first user information fields corresponding to the basic service set, thereby obtaining the number of sites triggered in the basic service set.
  • one user information number subfield in the at least one user information number subfield has a second value, and the second value is used to indicate that the first field does not include a value. It is the number of user information subfields after the number of user information subfields of the second value.
  • the number of user information subfields carrying the second value the number of user information subfields corresponding to all basic service sets indicated by the first field can be indicated.
  • the second value is all 0s or all 1s.
  • the site can determine that the basic service set corresponding to the user information count subfield carrying the second value is the last one in the at least one basic service set The basic service set, and the last basic service set does not include the triggered site, and the first field does not include the user information number subfield after the user information number subfield carrying the second value.
  • the first field includes: an association identification subfield; the association identification subfield is used for Indicates the type of the first field; the value of the association identification subfield is a special AID.
  • the type of the first field can be indicated through the association identification subfield, so that after receiving the trigger frame, the station can parse the association identification subfield included in the first field in the trigger frame to determine the type of the first field type. Then the station obtains the identification information of the basic service set indicated by the first field from the first field.
  • the first field includes: a number of basic service sets subfield; and the number of basic service sets subfield is used to indicate the number of the at least one basic service set.
  • the identification information of all basic service sets indicated by the first field can be indicated.
  • an embodiment of the present application also provides an uplink coordinated communication method, including: a station STA receives a trigger frame sent by a first access point AP, and the trigger frame is used to trigger the station to send a physical trigger frame-based Layer protocol data unit PPDU, the station belongs to a basic service set of a plurality of basic service sets, and the trigger frame includes: identification information of the plurality of basic service sets and identification information of the station; the station determines the need Send the physical layer protocol data unit PPDU based on the trigger frame.
  • the trigger frame generated by the first access point may include: identification information of multiple basic service sets and identification information of the station, and the trigger frame may trigger multiple BSSs to perform uplink coordination, and for the first access point
  • the trigger frame can carry the identification of the station that is triggered in a BSS, so the first access point can independently configure the identification information of the station associated with the first access point, and there is no need to ensure that the stations in multiple BSSs
  • the identification is unique, which increases the flexibility of the first access point to configure the identification information of the station that is triggered, and realizes that the access point and the station communicate in the uplink coordination scenario of multiple access points.
  • an embodiment of the present application also provides an uplink coordinated communication method, including: a first access point AP generates a trigger frame, and the trigger frame is used to trigger a station STA in a plurality of basic service sets BSS to send a trigger-based
  • the physical layer protocol data unit PPDU of the frame, the trigger frame includes: identification information of the multiple basic service sets and identification information of the station; the first access point sends the trigger frame to the station.
  • the trigger frame generated by the first access point may include: identification information of multiple basic service sets and identification information of the station, and the trigger frame may trigger multiple BSSs to perform uplink coordination, and for the first access point
  • the trigger frame can carry the identification of the station that is triggered in a BSS, so the first access point can independently configure the identification information of the station associated with the first access point, and there is no need to ensure that the stations in multiple BSSs
  • the identification is unique, which increases the flexibility of the first access point to configure the identification information of the station that is triggered, and realizes that the access point and the station communicate in the uplink coordination scenario of multiple access points.
  • an embodiment of the present application also provides an uplink coordinated communication method, including: a first access point AP generates a physical layer protocol data unit PPDU, and the physical layer protocol data unit includes a medium access control MAC frame, so The physical layer protocol data unit includes: coordination indication information, the coordination indication information is used to indicate whether the target receiving station of the MAC frame includes a communication device, and the communication device includes at least one of the following: a second access point and a communication device; The station associated with the second access point, the first access point and the second access point belong to the same cooperating set; the first access point sends the physical layer protocol data to the communication device unit.
  • the cooperative station can distinguish as soon as possible whether the MAC frame carried by the PPDU is related to cooperation, so that the station can perform power saving or spatial multiplexing as soon as possible.
  • an embodiment of the present application also provides an uplink coordinated communication method, including: a communication device receives a physical layer protocol data unit PPDU sent by a first access point AP, where the physical layer protocol data unit includes media access control MAC frame, the physical layer protocol data unit includes: coordination indication information, the coordination indication information is used to indicate whether the target receiving station of the MAC frame includes the communication device, and the communication device includes at least one of the following: Two stations associated with the access point and the second access point, the first access point and the second access point belong to the same cooperating set; the communication device determines whether to parse according to the coordination indication information The MAC frame.
  • the cooperative station can distinguish as soon as possible whether the MAC frame carried by the PPDU is related to cooperation, so that the station can perform power saving or spatial multiplexing as soon as possible.
  • the physical layer protocol data unit includes: a signaling SIG field; the coordination indication information is carried in the signaling field.
  • the coordination indication information occupies 1 bit; if the coordination indication information carries a first value, the coordination indication information is used to indicate that the target receiving station of the MAC frame includes the communication Device; or, if the coordination indication information carries a second value, the coordination indication information is used to indicate that the target receiving station of the MAC frame does not include the communication device.
  • an embodiment of the present application also provides an uplink coordinated communication method, including: a station STA receives a first trigger frame sent by a first access point AP, and receiving a second trigger frame sent by at least one second access point A trigger frame, wherein the station and the first access point belong to the same basic service set BSS, and the station and the at least one second access point belong to different basic service sets; the first trigger frame , And/or the second trigger frame is used to instruct the station to send a physical layer protocol data unit PPDU based on the trigger frame, wherein the first trigger frame includes: the first access point sends the first A first transmission power of a trigger frame, and the first received power of the physical layer protocol data unit based on the trigger frame sent by the station estimated by the first access point to the first access point; The station determines the second received power for receiving the first trigger frame and the second trigger frame; the station obtains a transmission power adjustment factor, where the transmission power adjustment factor is used to adjust the transmission based on the trigger The transmit power of the physical layer protocol
  • the station may receive trigger frames sent by multiple access points, for example, the station receives the first trigger frame sent by the first access point, and receives the second trigger frame sent by at least one second access point.
  • the station determines the second receiving power for receiving the trigger frame and the second trigger frame, and the station may determine to send the physical layer protocol data unit based on the trigger frame according to the first transmission power, the first reception power, the second reception power, and the transmission power adjustment factor
  • the transmission power of the station can accurately calculate the transmission power of the PPDU based on the trigger frame when multiple access points send trigger frames, so that the access point and the station can be coordinated in the uplink of multiple access points. To communicate.
  • the station can use the above formula to calculate the transmission power of the physical layer protocol data unit based on the trigger frame, and the station can use the transmission power adjustment factor to adjust the transmission power of the physical layer protocol data unit based on the trigger frame.
  • the adjusted transmission power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point.
  • the determining the transmit power of the physical layer protocol data unit based on the trigger frame includes: if the first transmit power and the second access point transmit the second The transmission power of the trigger frame is different.
  • the Pt represents the transmission power of the physical layer protocol data unit based on the trigger frame, the Ptar represents the first received power, the P0 represents the first transmission power, and the Pr represents the second reception Power, where a represents the transmission power adjustment factor, and b represents the ratio of the first transmission power to the transmission power of the second access point for sending the second trigger frame, and the x is the multiplication
  • the symbol, the / is the division symbol, and the + is the addition symbol.
  • the station can use the above formula to calculate the transmission power of the physical layer protocol data unit based on the trigger frame, and the station can use the transmission power adjustment factor to adjust the transmission power of the physical layer protocol data unit based on the trigger frame.
  • the adjusted transmission power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point.
  • the determining the transmission power of the physical layer protocol data unit based on the trigger frame includes: the station determines the transmission power of the physical layer protocol data unit based on the trigger frame in the following manner Transmission power: Among them, the Represents the transmit power of the physical layer protocol data unit based on the trigger frame, the Target RSSI represents the first received power, and the Represents the first transmission power, the DL RSSI represents the second received power, the m represents the transmission power adjustment factor, the + is an addition sign, and the – is a subtraction sign.
  • the station can use the above formula to calculate the transmission power of the physical layer protocol data unit based on the trigger frame, and the station can use the transmission power adjustment factor to adjust the transmission power of the physical layer protocol data unit based on the trigger frame.
  • the adjusted transmission power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point.
  • the transmit power adjustment factor is a predetermined value; or, the transmit power adjustment factor is obtained by the station from the first access point.
  • the pre-regulation may be the pre-regulation of the communication protocol, and the station can obtain the transmission power adjustment factor according to the pre-configured communication protocol.
  • the first access point may determine the transmit power adjustment factor, and then the first access point transmits the transmit power adjustment factor to the station. After the station receives the transmit power adjustment factor, the station may determine the physical layer to send the trigger frame The transmit power of the protocol data unit.
  • the second access point may send the transmission power adjustment factor to the station, and after the station receives the transmission power adjustment factor, the station may determine the transmission power of the physical layer protocol data unit based on the trigger frame.
  • acquiring the transmission power adjustment factor by the station includes: receiving, by the station, a first media access control MAC frame sent by the first access point, wherein the first media access The incoming control frame includes: the second transmission power at which the first access point sends the first media access control frame; the station determines the third reception power at which the first media access control frame is received; the The station obtains the transmission power adjustment factor according to the second transmission power, the third reception power, and the second reception power.
  • acquiring the transmission power adjustment factor by the station includes: receiving, by the station, a first media access control frame sent by the first access point, and receiving the second access A second media access control frame sent by a point, wherein the first media access control frame includes: the second transmission power of the first access point to send the first media access control frame, and the first media access control frame
  • the second media access control frame includes: the third transmission power for the second access point to send the second media access control frame; the station determines the third reception power for receiving the first media access control frame , And, determining the fourth reception power for receiving the second medium access control frame; the station is based on the second transmission power, the third transmission power, the third reception power, and the fourth reception Power to obtain the transmit power adjustment factor.
  • acquiring the transmission power adjustment factor by the station includes: receiving, by the station, a second media access control frame sent by the second access point, where the second media access
  • the control frame includes: the third transmission power at which the second access point sends the second media access control frame; the station determines the fourth reception power at which the second media access control frame is received; the station Acquire the transmission power adjustment factor according to the third transmission power, the fourth reception power, and the second reception power.
  • an embodiment of the present application also provides an uplink coordinated communication method, including: a first access point AP generates a first trigger frame, wherein the first trigger frame is used to instruct a station to send a physical trigger frame-based Layer protocol data unit PPDU, the first trigger frame includes: the first transmission power at which the first access point sends the first trigger frame, and the estimated power sent by the station by the first access point The first received power of the physical layer protocol data unit based on the trigger frame reaching the first access point; the first access point sends the trigger frame to the station.
  • the first access point can send the first trigger frame to the station, so that the station can accurately calculate the effect of sending the PPDU based on the trigger frame when multiple access points send the trigger frame.
  • the access point and the station communicate in the uplink coordination scenario of multiple access points.
  • the method further includes: the first access point sends a first media access control MAC frame to the station, where the first media access control frame includes: The first access point sends the second transmission power of the first media access control frame.
  • the method further includes: the first access point sends a transmit power adjustment factor to the station, where the transmit power adjustment factor is used by the station to determine to send the The transmit power of the physical layer protocol data unit that triggers the frame.
  • an embodiment of the present application also provides a communication device, the communication device is applied to a first access point AP, the communication device includes: a processor configured to generate a physical layer protocol data unit PPDU, the The physical layer protocol data unit includes a media access control MAC frame, the physical layer protocol data unit includes: coordination indication information, the coordination indication information is used to indicate whether the target receiving station of the MAC frame includes a communication device, the communication The device includes at least one of the following: a second access point and a station associated with the second access point; and a transceiver, configured to send the physical layer protocol data unit to the communication device.
  • an embodiment of the present application further provides a communication device, the communication device is applied to a station associated with a second access point and the second access point, and the communication device includes: a transceiver for Receive a physical layer protocol data unit PPDU sent by the first access point AP, the physical layer protocol data unit includes a media access control MAC frame, the physical layer protocol data unit includes: coordination indication information, the coordination indication information is used To indicate whether the target receiving station of the MAC frame includes a communication device, the communication device includes: a second access point and a station associated with the second access point; a processor, configured to determine according to the coordination instruction information Whether the MAC frame is used for coordination between the first access point and the communication device.
  • an embodiment of the present application also provides a communication device.
  • the communication device is applied to a first access point AP.
  • a first trigger frame, and receiving a second trigger frame sent by at least one second access point wherein the station and the first access point belong to the same basic service set BSS, and the station and the at least one A second access point belongs to a different basic service set;
  • the first trigger frame and/or the second trigger frame are used to instruct the station to send a physical layer protocol data unit PPDU based on the trigger frame, where
  • the first trigger frame includes: the first transmission power at which the first access point sends the first trigger frame, and the trigger-based frame sent by the station estimated by the first access point The first receiving power of the physical layer protocol data unit reaching the first access point;
  • a processor configured to determine the second receiving power of receiving the first trigger frame and the second trigger frame;
  • the processor Used to obtain the transmission power adjustment factor, wherein the transmission power adjustment factor is used to adjust the transmission power of the physical layer protocol data unit based on the trigger frame; the
  • an embodiment of the present application further provides a communication device, the communication device is applied to a first access point AP, and the communication device includes: a processor configured to generate a first trigger frame, wherein The first trigger frame is used to instruct the station to send a physical layer protocol data unit PPDU based on the trigger frame, and the first trigger frame includes: the first transmission power at which the first access point sends the first trigger frame, and , The first receiving power of the physical layer protocol data unit based on the trigger frame sent by the station estimated by the first access point to the first access point; a transceiver, configured to send to the station The first trigger frame.
  • the component modules of the communication device can also perform the steps described in the fifth to eighth aspects and various possible implementations.
  • an AP in a thirteenth aspect, includes a processor and a transceiver, and optionally, a memory; wherein the processor, the transceiver, and the memory communicate with each other through an internal connection.
  • the processor is used to execute the method in the second aspect or any possible implementation of the second aspect;
  • the transceiver which receives the control of the processor, is used to execute the method in the second aspect or any possible implementation of the second aspect Signal transmission and reception; memory, used to store instructions, which are called by the processor to execute the method in any possible implementation manner of the fourth aspect or the fifth aspect or the sixth aspect or the eighth aspect.
  • an STA in a fourteenth aspect, includes a processor and a transceiver, and optionally, a memory; wherein the processor, the transceiver, and the memory communicate with each other through internal connections.
  • the processor is used to execute the method in the third aspect or any possible implementation manner of the third aspect;
  • the transceiver which receives the control of the processor, is used to execute the method in the third aspect or any possible implementation manner of the third aspect Signal transmission and reception; memory, used to store instructions, which are called by the processor to execute the method in any possible implementation manner of the third aspect or the sixth aspect or the seventh aspect.
  • a computer-readable storage medium for storing a computer program, and the computer program includes instructions for executing a method in any possible implementation manner of any of the foregoing aspects.
  • a computer program includes instructions for executing a method in any possible implementation manner of any of the foregoing aspects.
  • a chip in a seventeenth aspect, includes a processing circuit and a transceiver pin, and optionally, a memory; wherein the processing circuit, the transceiver pin, and the memory communicate with each other through internal connections.
  • the processing circuit is used to execute the method in the first aspect or any possible implementation of the first aspect; the transceiver pins, and the control of the receiving processing circuit is used to execute the method in the first aspect or any possible implementation of the first aspect In signal transmission and reception; memory, used to store instructions, which are called by the processing circuit to execute the method in any possible implementation manner of any of the above aspects.
  • FIG. 1 is a schematic diagram of the composition structure of a communication system provided by an embodiment of this application.
  • FIG. 2 is a schematic structural diagram of another communication system according to an embodiment of the application.
  • FIG. 3 is a schematic block diagram of the flow of an uplink coordinated communication method provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a frame structure of a trigger frame provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of the composition structure of a public information field provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of a frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 9 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 10 is a schematic diagram of a frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 11 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 12 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of this application.
  • FIG. 14 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • 15 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • 16 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • FIG. 17 is a schematic diagram of the frame structure of another trigger frame provided by an embodiment of the application.
  • 19 is a schematic block diagram of the flow of another uplink coordinated communication method provided by an embodiment of this application.
  • FIG. 20 is a schematic diagram of a composition structure of a collaboration set provided by an embodiment of this application.
  • FIG. 21 is a schematic diagram of the composition structure of a first access point according to an embodiment of this application.
  • FIG. 22 is a schematic diagram of the composition structure of a site provided by an embodiment of the application.
  • the embodiments of the present application provide a communication method and communication device for uplink coordination, which are used to implement communication between an access point and a station in an uplink coordination scenario of multiple access points.
  • the technical solutions of the embodiments of the present application may be applied to a communication system, and the communication system may be applicable to scenarios where multiple APs coordinate transmission.
  • the coordinated transmission of multiple APs can refer to the multiple antennas of multiple APs for coordinated transmission, and the coordinated transmission of multiple APs can also refer to the coordinated transmission of multiple distributed antennas of one AP.
  • the coordinated transmission can be It is called cooperative transmission.
  • a specific implementation scenario for coordinated transmission of multiple APs may be D-MIMO transmission.
  • D-MIMO is MIMO in which the antenna at the transmitting end is a distributed antenna, which is usually referred to as coordinated MIMO, AP joint transmission, and D-MIMO is an implementation of AP coordinated transmission.
  • D-MIMO technology can make full use of more antennas combined by multiple nodes to provide a higher rate through more spatial streams, or to provide a longer transmission distance through the diversity of channels.
  • Antennas distributed in different nodes can provide better antenna isolation, and the channels are more independent, and can support more spatial streams.
  • D-MIMO is communication between an AP group and one or more STAs, where multiple APs can be wired or wirelessly connected.
  • one access controller (AC) can be unified to control multiple APs for transmission.
  • an exemplary communication system may include: AP1, AP2, STA1, and STA2.
  • AP1 may be the first access point (access point, AP) in the embodiment of the present application
  • AP2 may be the second AP in the embodiment of the present application.
  • the first AP and the second AP can implement multi-AP coordinated transmission or multi-AP joint transmission.
  • the first AP and the second AP include at least one antenna, and the coordinated transmission of at least one antenna of the first AP and at least one antenna of the second AP may also be referred to as distributed multiple input multiple output (D-MIMO) transmission or coordinated MIMO transmission .
  • D-MIMO distributed multiple input multiple output
  • the first AP can be the master AP, that is, AP1 in Figure 1
  • the second AP can be the slave AP, that is, AP2 in Figure 1
  • the first STA can be STA1 in Figure 1
  • the second STA can be Figure 1.
  • the first AP can communicate with the second AP, for example, in a wired or wireless manner.
  • the first AP is the master AP and the second AP is the slave AP as an example for description.
  • the first AP and the master AP can be used alternately, and the second AP and the slave AP can be used alternately. It can be understood that the number of APs and STAs in the communication system is only exemplary.
  • An access point is a device in a communication system that connects a site to a communication network.
  • the access point may be a device that supports the 802.11 series of protocols or a chip that supports the 802.11 series of protocols, and may support the access point to provide services for stations in a wireless local area network, such as devices or chips that support 802.11be, or, support 802.11 Be's next-generation protocol equipment or chip.
  • an access point may be called a radio access network (RAN) node (or device), base station, and so on.
  • RAN radio access network
  • access points are: transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) , NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home NodeB, HNB), baseband unit (baseband unit, BBU), or Wi-Fi access point, and other interface devices that can work in a wireless environment.
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or home NodeB, HNB
  • baseband unit baseband unit
  • Wi-Fi access point and other interface devices that can work in a wireless environment.
  • the devices on the access point side in the embodiments of the present application may also be chips installed in the aforementioned devices.
  • a site is a device with a wireless connection function that can provide users with information, voice and/or data connectivity.
  • the site can be a device that supports the 802.11 series of protocols or a chip that supports the 802.11 series of protocols, which can support the site in Communication in a wireless local area network, such as a device or chip that supports the 802.11be protocol, or a device or chip that supports the next-generation protocol of the 802.11be protocol.
  • Stations can also be called terminal equipment, user equipment (UE), mobile station (MS), mobile terminal (MT), and so on.
  • sites include: mobile phones, tablets, laptops, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids
  • the device on the site side in the embodiment of the present application may also be a chip installed in the above-mentioned devices.
  • the access points and sites are sensor nodes in smart cities (for example, smart Water meters, smart meters, smart air detection nodes), smart devices in smart homes (such as smart cameras, projectors, display screens, TVs, stereos, refrigerators, washing machines, etc.), nodes in the Internet of Things, entertainment terminals (such as Wearable devices such as AR, VR, etc.), smart devices in smart offices (such as printers, projectors, etc.), connected vehicles in the Internet of Vehicles, and some infrastructure in daily life scenarios (such as vending machines, self-service in supermarkets) Navigation station, self-service cash register equipment, self-service ordering machine, etc.).
  • smart devices in smart homes such as smart cameras, projectors, display screens, TVs, stereos, refrigerators, washing machines, etc.
  • nodes in the Internet of Things such as Wearable devices such as AR, VR, etc.
  • smart devices in smart offices such as printers, projectors, etc.
  • connected vehicles in the Internet of Vehicles and some infrastructure in daily life scenarios (such as vending machines, self-
  • access points and stations in the embodiments of the present application are not particularly limited, which are only exemplary descriptions here.
  • the access points and stations in the embodiments of the present application also support 802.11ax/ac/n/g/b/a and other protocols compatible.
  • the technical solutions of the embodiments of the present application can be applied to various data processing communication systems, such as wireless local area network communication (wireless local area network) systems or cellular systems.
  • the communication system may also be suitable for future-oriented communication technologies, all of which are applicable to the technical solutions provided in the embodiments of the present application.
  • the system architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.
  • Fig. 2 shows a schematic structural diagram of another communication system according to an embodiment of the present application.
  • the communication system shown in FIG. 2 includes: a master AP, a slave AP1, a slave AP2, a slave AP3, a slave AP4, and STA1-6.
  • the first AP provided in the embodiment of the present application may be the aforementioned master AP, and the second AP may be the aforementioned slave AP1, slave AP2, slave AP3, and slave AP4.
  • the master AP in Figure 2 can form D-MIMO with the slave AP1, the slave AP2, the slave AP3, and the slave AP4, or the master AP can form D-MIMO with the slave AP1, the slave AP2, and the slave AP3.
  • AP1 and subordinate AP2 form D-MIMO
  • the main AP and subordinate AP1 can form D-MIMO.
  • the communication system provided by the embodiments of the present application may use multiple Wi-Fi standards for communication.
  • the multiple Wi-Fi standards may include existing high-throughput (HT) or very high throughput (very high throughput). , VHT), or high efficiency (HE) wifi standard, or the next generation of Wi-Fi standard (also known as 802.11ax or Wi-Fi 6), for example, extremely high throughput (EHT) Or use very high efficiency (VHE).
  • the next-generation Wi-Fi standard is EHT (also referred to as 802.11be or Wi-Fi 7) as an example to illustrate the solution of the embodiment of the present application.
  • FIG. 3 is a schematic flowchart of an uplink coordinated communication method provided by an embodiment of this application.
  • the uplink coordinated communication method provided by the embodiment of the present application mainly includes the following steps:
  • the first access point AP generates a trigger frame, which is used to trigger stations STAs in multiple BSSs to send a phy protocol data unit (PPDU) based on a trigger frame (trigger-based, TB) to trigger
  • the frame includes: the identification information of multiple basic service sets and the identification information of the site.
  • the first access point belongs to the first BSS, and the first access point is associated with one or more station STAs in the first BSS.
  • the first BSS is one of the multiple BSSs.
  • the access point can independently configure site identification information for the triggered site in the first BSS, and the first access point does not need to be affected by the identification information of other access point configuration sites.
  • the trigger frame may be an uplink coordinated (UL coordinated) trigger frame, or the trigger frame may also be a type of frame newly defined by the first access point, and the implementation manner of the trigger frame is not limited.
  • the trigger frame includes identification information of multiple basic service sets, where the identification information of the basic service set is used to uniquely identify a basic service set, and the trigger frame needs to include all basic service sets used for uplink coordination.
  • the identification information for example, if there are N basic service sets for uplink coordination, the trigger frame includes identification information of the N basic service sets, and N may be equal to 1 or 2 or a larger positive integer.
  • the trigger frame may also include the identification information of the triggered station in each basic service set of the multiple basic service sets.
  • the first access point belongs to the first BSS, and the trigger frame M stations in the first BSS can be triggered, the trigger frame needs to include the identification information of the M stations in the first BSS, and the first access point can configure the identity of each station for the M stations in the first BSS Information, the identification information of the station included in the trigger frame is used to indicate the triggered station.
  • the trigger frame since the trigger frame includes the identification information of multiple basic service sets and the identification information of the triggered sites included in each basic service set, a basic service set includes a part of the triggered sites, based on the basic service set. The identity and the identity of the site in the basic service set can be distinguished from each triggered site.
  • the first access point can independently configure the site
  • the identification information of the site only needs to be unique within the associated basic service set, and does not need to be unique in multiple basic service sets, thereby increasing the access point configuration site identification information flexibility.
  • the trigger frame can be used to trigger the station to send a physical layer protocol data unit (TB PPDU) based on the trigger frame, where the physical layer protocol data unit can also be referred to as a data packet.
  • a PPDU based on a trigger frame refers to a PPDU that is scheduled by a trigger frame and carries uplink data. It is understandable that the trigger frame can be generated by any AP among multiple APs.
  • the first AP is the AP that generates the trigger frame as an example for description.
  • the first AP can be called the master AP, and the other APs, For example, the second AP is called a slave AP or a slave AP.
  • the identification information of the multiple basic service sets includes at least one of the following: basic service set color (basic service set color, BSS Color) corresponding to the multiple basic service sets, and multiple basic service sets
  • basic service set color basic service set color, BSS Color
  • BSS Color basic service set color
  • MAC media access control
  • the identification information of the site includes: the associated identification AID of the site.
  • the identification information of the basic service set can be implemented in multiple ways.
  • the identification information of the basic service set includes at least one of the following: basic service set color, access point identification corresponding to the basic service set, basic service set identification, and basic service set identification.
  • the identification information of the basic service set may also be part of the basic service set identification, for example, a part of the basic service set identification is intercepted as the identification information of the basic service set.
  • the identification information of the basic service set may be a part of the MAC address of the access point corresponding to the basic service set. In the following embodiments, description is made by taking the identification information of the basic service set as the color of the basic service set as an example.
  • a set composed of multiple APs can be called an AP group or a cooperative set.
  • Each AP and its associated stations constitute a BSS.
  • the basic service set can be The color of the basic service set can be used as the identification information of each basic service set.
  • the specific implementation form adopted by the identification information of multiple basic service sets is not specifically limited in the embodiment of the present application.
  • the identification information of the station can be implemented in many ways.
  • the AID of the STA can be used as the identification information of the STA.
  • the AID of the STA can be assigned to the STA by the first AP, or the MAC address of the STA can be used as the identification information of the STA.
  • the specific implementation form adopted is not specifically limited in the embodiment of the present application.
  • the trigger frame includes: a first field and at least one first user information field corresponding to the first field, where the first field includes: an identifier of at least one basic service set in a plurality of basic service sets Information; a first user information field includes: identification information of a triggered site in at least one basic service set; at least one first user information field is located after the first field in the trigger frame.
  • the trigger frame needs to use corresponding fields to carry the identification information of multiple basic service sets and the identification information of the station.
  • the fields included in the trigger frame can also be called domains or units, which are only described here.
  • the trigger frame includes: the first field and at least one first user information (user info) field corresponding to the first field.
  • the trigger frame includes multiple first user information fields as an example for illustration.
  • One or more fields in the trigger frame, and the first user information field is one or more user information fields in the trigger frame.
  • the first field includes: identification information of at least one basic service set in a plurality of basic service sets. For example, there are T basic service sets used for uplink coordination, and the first field may include (T-1) basic services Centralized identification information.
  • a first user information field includes: identification information of a triggered site in a basic service set.
  • the first field included in the trigger frame and at least one first user information field corresponding to the first field can indicate the identification information of multiple basic service sets and the identification information of the triggered site, so that the receiving The site that arrives at the trigger frame obtains the identification information of the basic service set and the site’s identification information included in the trigger frame by parsing the first field and the first user information field, so as to accurately determine whether the site has not been triggered. If it is determined that it is a station triggered (or scheduled) by the trigger frame, the station sends a TB PPDU.
  • At least one first user information field corresponding to the first field is located after the first field in the trigger frame, that is, the first field in the trigger frame is parsed by the station first. Only after the first field is parsed, the station can continue to parse the at least one first user information field corresponding to the first field from the trigger frame according to the instruction of the first field.
  • the trigger frame may include a first field and multiple first user information fields corresponding to the first field.
  • the first field may be used to carry identification information of at least one basic service set in the multiple basic service sets.
  • the field also corresponds to at least one first user information field.
  • Each of all stations triggered by the trigger frame can use a first user information field, and the first access point can carry the triggered user information in a first user information field.
  • the identity of a site may be used to carry identification information of at least one basic service set in the multiple basic service sets.
  • the field also corresponds to at least one first user information field.
  • Each of all stations triggered by the trigger frame can use a first user information field, and the first access point can carry the triggered user information in a first user information field.
  • the identity of a site may be used to carry identification information of at least one basic service set in the multiple basic service sets.
  • Each of all stations triggered by the trigger frame can use a first user information field, and the first access point can carry the triggered user information in
  • the trigger frame includes a first field
  • the first field can be implemented in multiple ways.
  • the first field is carried in the second user information field in the trigger frame; or, the first field is carried in the common information field in the trigger frame; or, the first field is carried in the trigger frame. Coordination field.
  • the first field may be carried in the second user information field in the trigger frame
  • the second user information field is one or more user information fields in the trigger frame
  • the second user information field is the same as the aforementioned first user information field.
  • the user information field belongs to different user information fields, and the second user information field and the aforementioned first user information field are based on the difference in the information content carried and adopt different naming methods.
  • the first field is carried in the second user information field, and the position of the first field in the second user information field is not limited here.
  • the second user information field may be referred to as a special user info field, or the second user information field may be referred to as a user info field of the AID12 subfield with a special value.
  • the trigger frame includes a common information (common info) field
  • the first field may be carried in the common information field in the trigger frame.
  • the first field may be the last field in the common information field, or the first field.
  • the field is the middle position in the public information field, and the position of the first field in the second user information field is not limited here.
  • the trigger frame includes a coordinated field
  • the first field may be carried in a coordinated field in the trigger frame.
  • the coordinated field may be a newly added field in the trigger frame.
  • the coordinated field may be deployed in the trigger frame. The last position in the public information field in the or coordination field is deployed after the public information field in the trigger frame. Further, the coordination field is deployed after the common information field in the trigger frame, and the coordination field is adjacent to the common information field. There is no restriction on the implementation of the coordination field, and no restriction on the deployment position of the first field in the coordination field.
  • the first field has multiple specific implementations in the trigger frame, and a detailed example will be given below.
  • at least one basic service set does not include the first basic service set corresponding to the first access point, and the first field is located in the first basic service set corresponding to the first basic service set in the trigger frame. After the user information field.
  • the basic service set corresponding to the first access point is the first basic service set
  • the first field includes at least one basic service set from the multiple basic service sets.
  • the identification information of the service set at least one basic service set does not include the first basic service set, that is, the identification information of the first basic service set is not carried in the first field.
  • the first basic service set may be referred to as the transmitting BSS, and the transmitting basic service set may also be referred to as the main BSS.
  • the transmitting basic service set refers to the BSS corresponding to the AP that initiates the cooperation, or the AP corresponding to the establishment of the cooperation group. BSS.
  • the first basic service set may be indicated by the sending address in the MAC frame header, or the basic service set color (BSS color) in the signaling (signal, SIG) field in the physical layer protocol data unit.
  • BSS color basic service set color
  • SIG signaling
  • the first field is located after the first user information field corresponding to the first basic service set in the trigger frame, for example, the first field
  • P first user information fields corresponding to the basic service set and the first field may be located after the P first user information fields, so that after the site has parsed the P first user information fields corresponding to the first basic service set, The first field can be determined after the P first user information fields.
  • the first field is adjacent to the P first user information fields, and the value of P can be greater than or equal to 1, which is not limited here.
  • the first basic service set corresponding to the first access point is not indicated through the first field, thereby saving the indication overhead of the trigger frame.
  • the first basic service set corresponding to the first access point can also be indicated through the first field, so that the station can determine by parsing the first field in the trigger frame
  • the first basic service set corresponding to the first access point, and at least one first user information field corresponding to the first field in the trigger frame is analyzed to determine the triggered station in the first basic service set.
  • the trigger frame includes a plurality of first fields, and at least one first user information field corresponding to the plurality of first fields respectively.
  • the length of a first field in the trigger frame is fixed. If a first field cannot indicate the identification information of all basic service sets used for uplink coordination, multiple first fields need to be included in the trigger frame , The identification information of all basic service sets used for uplink coordination can be indicated through multiple first fields, so that the trigger frame can indicate the identification information of all basic service sets used for uplink coordination.
  • the trigger frame includes 2 first fields, and there are 6 basic service sets used for uplink coordination, so one first field can indicate the identification information of the 4 basic service sets used for uplink coordination , The other first field may indicate the identification information of the two basic service sets used for uplink coordination.
  • the trigger frame also includes at least one first user information field corresponding to the two first fields, for example, one first field corresponds to T first user information fields ,
  • the trigger frame includes 2T first user information fields.
  • the first field can be the second user information field in the trigger frame. Since the length of the second user information field is fixed, when one second user information field is not enough to carry the indication information of all cooperative BSSs, It is also possible to carry multiple special AID second user information fields in one trigger frame. After a second user information field carrying a special AID and the first user information field indicated by the second user information field, a second user information field carrying another special AID is carried, and the first user information field carrying another special AID is carried. The second user information field is used to indicate a batch of first user information fields after the second user information field carrying another special AID.
  • the trigger frame may indicate the identification information of all basic service sets used for uplink coordination.
  • the common information field includes: Trigger Type subfield and common information based on the trigger type ( Trigger Dependent Common Info) subfield; the trigger type subfield is used to indicate the trigger type of the trigger frame; the common information subfield based on the trigger type includes: the first field.
  • the trigger frame includes a common information field
  • the first field can be carried by the common information field.
  • the common information field includes: a trigger type subfield and a common information subfield based on a trigger type.
  • the trigger type subfield can be used for Indicate the trigger frame type, for example, the trigger type subfield may indicate that the trigger frame is an uplink coordinated (UL coordinated) trigger frame.
  • the first field may be carried in the common information subfield based on the trigger type.
  • the first field may be a component of the common information subfield based on the trigger type, or the first field may be the common information subfield based on the trigger type.
  • the common information field in the trigger frame in the embodiment of the present application can be used to carry the first field, so that the common information field in the trigger frame can indicate the identification information of all basic service sets used for uplink coordination.
  • the trigger frame further includes: a public information field, which is used to indicate the trigger type of the trigger frame; the coordination field is located in the trigger frame After the public information field.
  • the first field may be a coordination field in the trigger frame, the coordination field may be a field added to the trigger frame, and the first field may be carried in the coordination field.
  • the first field may be a component of the coordination field, or
  • the first field can be a coordination field, which is not limited here.
  • the coordination field may be located after the common information field in the trigger frame, for example, the coordination field is adjacent to the common information field.
  • the coordination field in the trigger frame in the embodiment of the present application can be used to carry the first field, so that the coordination field in the trigger frame can indicate the identification information of all basic service sets used for uplink coordination.
  • the first field includes: at least one basic service set identification subfield; wherein, one basic service set identification subfield is used to indicate one of the at least one basic service set The identification information of the basic service set.
  • the first field may include a basic service set identification subfield, and the basic service set identification subfield may indicate identification information of a basic service set.
  • the first field may include two basic service set identification subfields, one basic service set identification subfield may indicate identification information of one basic service set, and the other basic service set identification subfield may indicate another basic service The identification information of the set.
  • the basic service set identification subfield can indicate the identification information of one basic service set in at least one basic service set, so that the site can obtain the identification information of the basic service set by parsing the basic service set identification subfield .
  • the first field includes: at least one basic service set identification subfield, and a special value may be set in the at least one basic service set identification subfield, for example, set to the first Value, the first value is used to indicate that the first field does not include the basic service set identification subfield after the basic service set identification subfield that takes the first value, that is, the basic service set that takes the first value
  • the identification subfield is the last basic service set identification subfield in the first field.
  • the basic service set indicated by the one-value basic service set identification subfield does not include the triggered station, and the first field does not include the basic service set identification subfield after the basic service set identification subfield carrying the first value.
  • the identification information of all basic service sets indicated by the first field can be indicated.
  • the first value may be selected in multiple ways, for example, the first value is all 0s or all 1s. That is, when a basic service set identifier subfield carries a value of all 0s or all 1, it can be determined that the basic service set identifier subfield is the last basic service set identifier subfield, and the first field does not include the first value.
  • the basic service set identification subfield after the value of the basic service set identification subfield.
  • the value of the first value in the embodiment of the present application is not limited to the above example.
  • the first field includes: at least one user information number (number of user info for BSS color) subfield;
  • One user information number subfield is used to indicate the number of first user information fields corresponding to one basic service set in at least one basic service set.
  • the trigger frame can also indicate the number of first user information fields corresponding to the basic service set used for uplink coordination. It can be understood that the number of first user information fields corresponding to a basic service set is equal to the number of first user information fields in the basic service set.
  • the first field may include a user information count subfield, thereby indicating the number of first user information fields corresponding to a basic service set.
  • the first field may include two user information number subfields, thereby indicating the number of first user information fields corresponding to the two basic service sets.
  • the first field indicates how many identification information of the basic service set, and how many user information subfields need to be used to indicate the number of first user information fields corresponding to the corresponding basic service set.
  • the site can parse the user information number subfield in the first field, and can obtain the number of first user information fields corresponding to the basic service set, thereby obtaining the number of sites triggered in the basic service set.
  • the first field includes: at least one basic service set identification subfield and at least one user information number subfield;
  • a basic service set identification subfield is used to indicate identification information of one basic service set in at least one basic service set.
  • One user information number subfield is used to indicate the number of first user information fields corresponding to one basic service set in at least one basic service set.
  • the first field may include a basic service set identification subfield and a user information number subfield. These two fields can be used to indicate the identification information of the basic service set and the number of first user information fields corresponding to the basic service set. .
  • the first field includes: at least one user information number subfield, one of the at least one user information number subfield has a second value, and the second value It is used to indicate that the number of user information subfields after the number of user information subfields that take the second value are not included in the first field.
  • the station can parse at least one of the user information number subfields in the first field. If the station parses the user information number subfield carrying the second value from the first field, the station can determine to carry The number of user information subfields of the second value is the last basic service set in at least one basic service set. The last basic service set does not contain the triggered sites, and the first field is the number of user information subfields carrying the second value. After that, the subfield of the number of user information is not included, and the site can no longer parse the first field at this time. In the embodiment of the present application, by setting the number of user information subfields carrying the second value, the number of user information subfields corresponding to all the basic service sets indicated by the first field can be indicated.
  • the second value may be selected in multiple ways, for example, the second value is all 0s or all 1s. That is, when the value carried by the number of user information subfields is all 0 or all 1, the site can determine that the basic service set corresponding to the number of user information subfields carrying the second value is the last basic service set in the at least one basic service set. And the last basic service set does not include the triggered site, and the first field does not include the user information number subfield after the user information number subfield carrying the second value.
  • the value of the second value in the embodiment of the present application is not limited to the above example.
  • the first field if the first field is carried in the second user information field in the trigger frame, the first field includes: an association identification subfield; an association identification subfield, which is used to indicate the second user information field.
  • the type of a field; the value of the associated identification subfield is a special AID.
  • the first field also needs to indicate the type of the first field.
  • the first field includes the associated identification subfield, and the value of the associated identification subfield It is a special AID, for example, the special AID can be 2044, 2008, or 2047, and the specific value of the associated identifier subfield is not limited. In the subsequent embodiments, the special AID of 2044 is used as an example.
  • the type of the first field can be indicated through the association identification subfield, so that after receiving the trigger frame, the station can parse the first field in the trigger frame. The associated identification subfield included in the field determines the type of the first field. Then the station obtains the identification information of the basic service set indicated by the first field from the first field.
  • the first field includes: the number of basic service sets subfield; the number of BSS subfields, used to indicate the number of at least one basic service set number.
  • the number of basic service sets subfield can be used in the first field to indicate the number of at least one basic service set.
  • the station analyzes the number of basic service sets subfield carried in the first field of the trigger frame.
  • the number of basic service sets indicated by the first field is determined, so that the station can obtain the identification information of these basic service sets from the first field according to the number of basic service sets indicated by the number of basic service sets subfield.
  • the identification information of all basic service sets indicated by the first field can be indicated.
  • the first field may include: an association identification subfield, a basic service set number subfield, a basic service set identification subfield, and a user information number subfield.
  • the first field may include: an association identification subfield, a basic service set identification subfield, and a user information number subfield.
  • the first field may include: an association identification subfield and a basic service set identification subfield.
  • the first field may include: a basic service set number subfield, a basic service set identification subfield, and a user information number subfield.
  • the specific composition structure of the first field is not limited, and can be determined in combination with specific application scenarios.
  • the first access point sends a trigger frame to the station.
  • the first access point may send the trigger frame to the station that needs to be triggered, so that the station can receive the trigger frame.
  • the station STA receives a trigger frame sent by the first access point AP.
  • the trigger frame is used to trigger the station to send a physical layer protocol data unit PPDU based on the trigger frame.
  • the station belongs to a basic service set of multiple basic service sets, and the trigger frame includes : The identification information of multiple basic service sets and the identification information of the site.
  • the station may parse the received trigger frame, obtain the identification information of the basic service set where the station is located from the trigger frame, and obtain the identification information of the triggered station from the trigger frame.
  • the station determines that it needs to send a physical layer protocol data unit PPDU based on a trigger frame.
  • the station after the station receives the trigger frame, if the station obtains the identification information of the station from the trigger frame, that is to say, it is determined that the station belongs to the triggered station, the station can send uplink data, for example Send TB PPDU.
  • uplink data for example Send TB PPDU.
  • the current trigger frame carries multiple user information (user info) fields.
  • Each user info field carries an AID12 subfield, which is used to carry the AID of a STA, and the other subfields in a user info field are used for Carry other scheduling information for the STA.
  • a special AID value may be used in a certain user info field to indicate that the user info field is redefined. This embodiment does not limit the specific value of the special value.
  • the value of the special AID can be selected as 2044, 2008 or 2047.
  • the user info field provided in the embodiments of the present application may include 40 bits and a trigger frame-based user information field (Trigger dependent user info).
  • the Trigger dependent user info in the basic trigger frame includes 8 bits.
  • the coordinated uplink trigger frame in this embodiment is used for uplink data scheduling, and the basic trigger frame type can be used. Therefore, the special user info field in this embodiment can use a length of 48 bits. It is not limited that the special user info field used in the embodiment of the present application is also extended to other types of trigger frames.
  • the user info field may be 40 bits.
  • the first user info field in the user information list is a special user info field.
  • the special user info field is the aforementioned first field.
  • the special user info field includes the AID12 field, and the special user
  • the info field can also include other fields, which will be described in detail below.
  • the special userinfo field includes: an association identification subfield, a basic service set number subfield, a basic service set identification subfield, and a user information number subfield.
  • the special user info field may also include a reserved subfield.
  • the association identification subfield is the AID12 field
  • the number of basic service sets subfield is the Number of BSS subfield shown in Figure 13.
  • the Number of BSS subfield is used to indicate how many BSS information is carried in this trigger frame.
  • there are n basic service set identification subfields namely BSS color1, BSS color 2,..., BSS color n, such as BSS color n
  • n user information subfields which are number of user info for BSS color 1, number of user info for BSS color 2,..., number of user info for BSS color n, for example , Number of user info for BSS color n is used to indicate the number of STA info in the nth BSS.
  • n is equal to 2 as an example, BSS1 and BSS2 are used for uplink coordination, BSS color 1 indicates the identification information of BSS1, number of user info for BSS color 1 indicates the user information corresponding to the scheduled station in BSS1 The number of fields, BSS color2 indicates the identification information of BSS2, and number of user info for BSS color2 indicates the number of user information fields corresponding to the scheduled stations in BSS2.
  • the special user info field includes: an association identification subfield, a basic service set identification subfield, and a user information number subfield.
  • the special user info field may also include a reserved subfield. That is, the special user info field does not carry the Number of BSS field, and directly carries n groups of BSS color and number of user info for BSS color n subfields, and the value indicated in the last number of user info for BSS color n is all 0, so the following bits are not used to indicate the BSS color or number of user info for BSS color fields.
  • BSS1 and BSS2 are used for uplink coordination, and the number of user info for BSS color3 corresponding to BB3 indicates all 0s, so the following bits are not used to indicate the BSS color or number of user info for BSS color fields.
  • the special user info field includes: an association identification subfield, a basic service set identification subfield, and a user information number subfield.
  • the special user info field may also include a reserved subfield. That is, the special user info field does not carry the Number of BSS field, but directly carries n sets of BSS color and number of user info for BSS color n subfields, and uses a specific value in the last BSS color field, such as all 0s. Or all 1, so the following bits are not used to indicate the BSS color or number of user info for BSS color fields.
  • BSS1 and BSS2 are used for uplink coordination
  • BSS color3 is a special BSS color
  • the value indicated by the special BSS color is all 0, so the following bits are not used to indicate the BSS color or number of user info for BSS color fields.
  • each BSS may also include an AP ID, a partial BSSID, or a partial AP MAC address.
  • the AP ID here refers to a unique identifier assigned to each AP through negotiation in the set of coordinated APs.
  • the partial BSSID or partial AP MAC address can be obtained by intercepting the BSSID or MAC address, or can be obtained by a specific mapping method.
  • BSS color is used as an example in the subsequent embodiments for description.
  • FIG 14 shows another implementation manner of this embodiment, which is similar to the manner in Figure 13.
  • the difference is that Transmitting BSS (or primary BSS), BBS2 and BBS3 are used for uplink coordination, and Transmitting BSS does not need to be used
  • the special user info field is used to indicate, the special user info field is used to indicate BSS2 and BSS3, the user info field in the Transmitting BSS is placed at the top, and the special user info field indication is not required.
  • the Transmitting BSS (or the main BSS) can pass The sending address in the MAC frame header or the BSS color in the SIG field in the physical layer can be obtained. After the user info field in the Transmitting BSS, place the user info field carrying a special AID.
  • the frame format is the same as that in the method described in Figure 13. The only difference is that it does not need to carry user info information related to Transmitting BSS, so I won’t repeat it here. .
  • the aforementioned Transmitting BSS refers to the BSS corresponding to the AP that initiates coordination, or the BSS corresponding to the AP that establishes the coordination group, or the BSS that sends the trigger frame.
  • the length of the user info field is fixed, when one user info field is not enough to carry all the indication information of the coordinated BSS, it is also possible to carry multiple user info fields of a specific AID in a trigger frame. After a user info with a special AID12 and the user info field indicated by it, another user info with a special AID12 is carried, and the user info with another special AID12 is used to indicate one or more user info fields that follow .
  • a user info field with a special value of AID12 is introduced to indicate how many BSSs participate in coordination and which user info fields correspond to.
  • a user info field with an AID12 set to a special value is used to indicate a user info field in a BSS.
  • BSS main BSS
  • BBS2 and BBS3 are used for uplink coordination.
  • Transmitting BSS does not need to use a special user info field to indicate, a special user info field is used to indicate BSS2, and another special user info field is used to indicate BSS3, the user info in the Transmitting BSS is ranked first, and then the user info field of a special AID12 is used to indicate the user info in a certain BSS, and the indication of the BSS is carried in the user info field of the special AID12.
  • a trigger frame can carry multiple special user info fields and corresponding user info fields. The user info fields before the two carrying special user info fields belong to the BSS indicated in the previous special user info field.
  • the user info field related to Transmitting BSS can also be indicated by a special user info field.
  • a special user info field is used, the user info field related to Transmitting BSS does not have to be listed in the user information list. Foremost, the configuration of fields is more flexible.
  • the user info field set to a special value for each AID12 is used to indicate a user info field related to the BSS.
  • This solution is not limited by the length of the user info field, and can support any number of BSSs to participate in coordination.
  • a trigger frame type is introduced for uplink coordination, such as a UL coordinated Trigger frame. Due to the introduction of a trigger frame type, the fields in the corresponding frame structure can be redesigned.
  • the signaling indication that needs to be added as discussed in the previous embodiment can be added to the Common info field, for example, as shown in Figure 16, carried in Trigger Dependent Common Info field.
  • the difference between the carried information and the embodiment shown in FIG. 13 is that there is no need to carry a special AID.
  • Figure 17 is another embodiment. The difference from the embodiment in Figure 16 is that the added field is not carried in the Trigger Dependent Common Info field, but a Coordinated field is added after the Common info field to carry special user info.
  • the field and the information carried are different from the embodiment shown in FIG. 13 in that it does not need to carry a special AID.
  • a type of trigger frame can be introduced to carry the information of the user info field of multiple BSSs.
  • the embodiment of this application does not need to modify the definition of the user info field, nor does it need to introduce a special AID12. It is possible to perform uplink scheduling on multiple BSS sites in the same trigger frame, and there is no need to share the AID space, and there is no need to reduce the AID space in each BSS. In addition, the complexity of AP signaling interaction and AID allocation is reduced.
  • the trigger frame generated by the first access point may include: identification information of multiple basic service sets and identification information of the station, the trigger frame may trigger multiple BSSs to perform uplink coordination, and for the first access point
  • the trigger frame can carry the identification of the station that is triggered in a BSS. Therefore, the first access point can independently configure the identification information of the station associated with the first access point.
  • the identification of the station in the BSS is unique, which increases the flexibility of the first access point to configure the identification information of the triggered station, and realizes the communication between the access point and the station in the uplink coordination scenario of multiple access points.
  • the frame sent by one AP is involved, and other APs or STAs in the BSS need to coordinate the reception.
  • This frame is coordination-related and can be collectively referred to as a coordination frame.
  • Coordination may involve different processes in the coordination process, such as coordinating the signaling negotiation between APs, channel measurement between AP and STAs in the coordinating BSS, AP sending control signaling to STAs in the coordinating BSS, or AP to coordinating BSS.
  • STA sends coordination data and other links. There are no restrictions on the specific type and content of the frame.
  • the coordination frame is sent by an AP and received by the station in the coordinated BSS, or received by the BSS and the station in the coordinated BSS.
  • the first AP and the second AP belong to the same coordinated set (or called a coordinated set).
  • the coordinated set may include multiple BSSs.
  • the BSS where the first AP is located is the BSS
  • the BSS where the second AP is located is the coordinated BSS. .
  • BSS color field in the SIG field of the PPDU carrying the coordination frame, such as the universal-signal (U-SIG) field of the Extremely High Throughput (EHT) PPDU.
  • U-SIG universal-signal
  • EHT Extremely High Throughput
  • the first access point AP generates a physical layer protocol data unit PPDU.
  • the physical layer protocol data unit includes a media access control MAC frame, and the physical layer protocol data unit includes: coordination indication information, which is used to indicate MAC Whether the target receiving station of the frame includes a communication device, the communication device includes at least one of the following: a second access point and a station associated with the second access point, and the first access point and the second access point belong to the same cooperating set ( Or called coordination set).
  • the first access point belongs to the first BSS
  • the second access point belongs to the second BSS
  • the first BSS and the second BSS are coordinated BSSs.
  • the first access point and the second access point belong to the same coordination set (or coordination set).
  • the first BSS also includes one or more stations
  • the second BSS also includes one or more stations.
  • the first access point AP sends the PPDU, so the first BSS is the current BSS (or the transmitting BSS), and the second BSS is the BSS coordinated with the first BSS.
  • the first access point and the second access point perform cooperative transmission together, and the first access point and the second access point belong to the same cooperative set.
  • the first access point may be a master access point
  • the second access point may be a slave access point.
  • the physical layer protocol data unit generated by the first access point carries coordination indication information.
  • the coordination indication information indicates whether the target receiving station of the MAC frame carried by the PPDU includes a communication device, wherein the target receiving station of the MAC frame refers to the need to receive the MAC frame The station of the MAC frame carried by the PPDU.
  • the communication device may include at least one of the following: a second access point and a station associated with the second access point.
  • the physical layer protocol data unit includes: coordination indication information, which is used to indicate whether the target receiving station of the PPDU includes a communication device, wherein the target receiving station of the PPDU refers to the station that needs to receive the PPDU .
  • the communication device includes at least one of the following: a second access point and a station associated with the second access point.
  • the physical layer protocol data unit includes: coordination indication information, the coordination indication information is used to indicate whether the communication device continues to parse the PPDU payload (payload), and the communication device includes at least one of the following: second access The site associated with the second access point.
  • the coordination indication information occupies 1 bit and can carry the first value or the second value. If the coordination indication information carries the first value, it instructs the communication device to continue parsing the PPDU payload. If the coordination indication information carries the second value, it indicates communication. The device may not continue to parse the payload of the PPDU.
  • the coordination indication information may also be used to indicate whether the station associated with the first access point continues to parse the PPDU load.
  • the coordination indication information occupies 2 bits and can carry the first value or the second value or the third value. If the coordination indication information carries the first value, it instructs the communication device to continue parsing the PPDU payload and the station associated with the first access point Do not continue to parse the PPDU payload. If the coordination indication information carries the second value, it indicates that the communication device may not continue to parse the PPDU payload, and the station associated with the first access point continues to parse the PPDU payload. If the coordination indication information carries the third value Value, it indicates that the communication device continues to analyze the PPDU load, and the station associated with the first access point continues to analyze the PPDU load.
  • the first access point sends a physical layer protocol data unit to the communication device.
  • the first access point after the first access point generates the above-mentioned physical layer protocol data unit, the first access point sends the physical layer protocol data unit to the communication device, so that the communication device that receives the PPDU can obtain the PPDU from the PPDU.
  • the communication device determines whether to continue parsing the MAC frame by analyzing the coordination instruction information.
  • the physical layer protocol data unit includes: a signaling (SIG) field;
  • the coordination indication information is carried in the signaling field.
  • the coordinated station by adding coordination indication information in the SIG field, the coordinated station can distinguish whether the MAC frame is related to coordination as soon as possible, and then perform power saving or space multiplexing as soon as possible.
  • the coordination indication information if the coordination indication information carries the first value, the coordination indication information is used to indicate that the target receiving station of the MAC frame includes a communication device; or,
  • the coordination indication information is used to indicate that the target receiving station of the MAC frame does not include a communication device.
  • the coordination indication information may occupy 1 bit.
  • the coordination indication information when the first value is 0, the coordination indication information is used to indicate that the target receiving station of the MAC frame includes a communication device, and when the second value is 1, the coordination indication information is used to indicate that the target receiving station of the MAC frame does not include a communication device.
  • the coordination indication information when the first value is 1, the coordination indication information is used to indicate that the target receiving station of the MAC frame includes a communication device, and when the second value is 0, the coordination indication information is used to indicate that the target receiving station of the MAC frame does not include communication Device.
  • the specific value carried by the coordination indication information can be determined according to the application scenario.
  • the communication device receives the physical layer protocol data unit PPDU sent by the first access point AP, the physical layer protocol data unit includes a media access control MAC frame, and the physical layer protocol data unit includes: coordination indication information, which is used to indicate Whether the target receiving station of the MAC frame includes a communication device, the communication device includes: a station associated with the second access point and the second access point, and the first access point and the second access point belong to the same cooperating set.
  • the communication device determines whether to parse the MAC frame according to the coordination instruction information.
  • the MAC frame may be a coordination frame.
  • a coordination indication information is added to the SIG field of the PPDU carrying the coordination frame to indicate whether the frame is coordination-related.
  • the stations in the coordination set need to continue parsing.
  • the coordination in the SIG carrying the PPDU of the frame indicates that the frame is not coordination-related, and the stations in the coordination set will do so according to the coordination instructions. No need to continue parsing.
  • the coordination indication information may be carried in an independent subfield in the SIG, or may be multiplexed with other subfields for indication.
  • the SIG field is usually called EHT-U-SIG, EHT-SIG or EHT-SIG-A field.
  • the coordination field can be 1 bit. When it is set to 0, it indicates that the content carried by the PPDU is not coordination-related, and when it is set to 1, it indicates that the content carried by the PPDU is coordination-related. The reverse is also possible.
  • the coordination frame may be a UL coordinated Trigger frame.
  • the coordination indication information in the SIG of the PPDU carrying the UL coordinated Trigger frame indicates that the frame is coordinated, it means that the UL coordinated Trigger frame is used to trigger multiple triggers.
  • Other stations in the BSS coordinate the uplink transmission.
  • the STAs in the coordinated BSS set need to parse the content of the MAC frame.
  • the coordination indication information indicates that the frame is not relevant for coordination, and the PPDU does not carry the UL coordinated Trigger frame.
  • the STAs in the coordinated BSS set do not need to parse the content of the MAC frame.
  • the first AP sends a PPDU
  • the SIG field of the PPDU includes coordination indication information. If the PPDU is transmitted cooperatively, that is, the target receiving station of the PPDU includes the STA2 associated with the second AP, then the first AP can set the indication information to the first value, indicating that the PPDU is coordination-related, and the PPDU
  • the target receiving station includes STA2 and carries data of STA2. After receiving the PPDU, STA2 determines that the PPDU is related to coordination, and STA2 needs to parse the PPDU to obtain the data in the PPDU.
  • the first AP can set the indication information to the second value to indicate the The PPDU is not coordination-related, and the target receiving station of the PPDU does not include STA2.
  • STA2 determines that the PPDU is not coordination-related, and STA2 does not parse the PPDU.
  • the cooperative station can distinguish as soon as possible whether the MAC frame carried by the PPDU is related to cooperation, so that the station can perform power saving or space multiplexing as soon as possible.
  • the station can calculate the transmission power of the station for uplink transmission based on the power parameter carried in a trigger frame.
  • the uplink transmission power scheme if the transmission power calculation scheme in the uncoordinated scenario of a single access point is still used, it will cause inaccurate calculation of the transmission power of the uplink transmission, because in the uplink coordination scenario of multiple access points In this case, multiple access points will send trigger frames, so that the channel between the station and multiple access points will cause interference.
  • the embodiment of the present application also provides a solution for transmitting the transmission power of the physical layer protocol data unit based on the trigger frame.
  • FIG. 19 Another uplink coordinated communication method provided by an embodiment of the present application is introduced, as shown in FIG. 19, which mainly includes the following processes:
  • the first access point AP generates a first trigger frame.
  • the first trigger frame is used to instruct the station to send the physical layer protocol data unit PPDU based on the trigger frame
  • the first trigger frame includes: the first transmission power of the first access point to send the first trigger frame, and, the first access The point estimates the first received power of the physical layer protocol data unit based on the trigger frame sent by the station to the first access point.
  • the station is associated with the first access point
  • the first access point can generate a first trigger frame
  • the first trigger frame is used to instruct the station to send a physical layer protocol data unit PPDU based on the trigger frame
  • the first trigger frame includes: A transmission power and a first reception power, where the first transmission power is the transmission power at which the first access point sends the first trigger frame, for example, the unit of the transmission power is milliwatt mW or watt W, and the first transmission power can represent Is P0.
  • the unit of transmit power is decibels, milliwatts, dBm
  • the first transmit power can be expressed as
  • the first received power is the received power of the physical layer protocol data unit based on the trigger frame sent by the station estimated by the first access point to reach the first access point.
  • the unit of the received power is milliwatt mW or watt W, and the first received power can be expressed as Ptar.
  • the unit of the received power is decibels, milliwatts, dBm, and the first received power can be expressed as Target RSSI .
  • the first access point and at least one second access point may belong to the same cooperative set
  • the second access point may generate a second trigger frame
  • the second trigger frame is used to instruct the station to send a trigger-based
  • the second trigger frame includes: the transmission power of the second access point to send the second trigger frame, and the physical layer protocol data unit based on the trigger frame sent by the station estimated by the second access point The received power to the second access point.
  • the first access point sends a first trigger frame to the station.
  • the first access point may send the first trigger frame to the station.
  • At least one second access point and the first access point belong to the same cooperative set, and the second access point may also send a second trigger frame to the station.
  • the uplink coordinated communication method performed by the first access point AP may further include the following steps:
  • the first access point sends a first media access control MAC frame to the station, where the first media access control frame includes: the second transmission power of the first media access control frame sent by the first access point.
  • the first MAC frame may be a frame that carries transmission power.
  • the frame that carries transmission power may be a beacon frame, a channel measurement frame, and a coordination frame.
  • the implementation of the first MAC frame is not limited here.
  • the first access point sends the first media access control MAC frame to the station, so that the station receives the first MAC frame, and the station can determine the transmission power adjustment factor according to the first MAC frame.
  • the transmit power adjustment factor refer to the description in the subsequent embodiment for details.
  • the first access point and the at least one second access point may belong to the same cooperative set, and the second access point may send a second MAC frame to the station, where the second MAC includes: The access point transmits the third transmission power of the second MAC frame.
  • the uplink coordinated communication method performed by the first access point AP may further include the following steps:
  • the first access point sends a transmission power adjustment factor to the station, where the transmission power adjustment factor is used by the station to determine the transmission power of the physical layer protocol data unit based on the trigger frame.
  • the first access point can determine the transmission power adjustment factor, and then the first access point sends the transmission power adjustment factor to the station. After the station receives the transmission power adjustment factor, the station can determine to send the physical layer protocol based on the trigger frame For the transmission power of the data unit, see the description in the subsequent embodiment for details.
  • the first access point and the at least one second access point may belong to the same cooperative set, and the second access point may send the transmission power adjustment factor to the station, and after the station receives the transmission power adjustment factor ,
  • the station can determine the transmission power of the physical layer protocol data unit based on the trigger frame. For details, see the description in the subsequent embodiment.
  • the station STA receives the first trigger frame sent by the first access point AP, and receives the second trigger frame sent by at least one second access point, where the station and the first access point belong to the same basic service set BSS, the station and the at least one second access point belong to different basic service sets.
  • the first trigger frame and/or the second trigger frame are used to instruct the station to send the physical layer protocol data unit PPDU based on the trigger frame, where the first trigger frame includes: the first access point sends the first trigger frame The first transmission power, and the first reception power at which the physical layer protocol data unit based on the trigger frame sent by the station estimated by the first access point arrives at the first access point.
  • the station and the first access point are in the same basic service set, and the first access point and at least one second access point belong to the same cooperating set.
  • the station also The second trigger frame sent by at least one second access point may be received.
  • the station determines the second received power for receiving the first trigger frame and the second trigger frame.
  • the first access point sends the first trigger frame to the station, and at least one second access point sends the second trigger frame to the station. Therefore, the station will receive multiple trigger frames at the same time (for example, including the first trigger frame and the second trigger frame). Trigger frame), the station measures the received power when receiving multiple trigger frames as the second received power.
  • the station obtains a transmission power adjustment factor, where the transmission power adjustment factor is used to adjust the transmission power of the physical layer protocol data unit based on the trigger frame.
  • the station since the station can receive multiple trigger frames at the same time, the station needs to consider the influence of multiple access points on the transmission power of the physical layer protocol data unit based on the trigger frame sent by the station.
  • the station obtains the transmission power adjustment factor.
  • the station can adjust the transmission power of the physical layer protocol data unit based on the trigger frame through the transmission power adjustment factor.
  • For the method of adjusting the transmission power of the physical layer protocol data unit based on the trigger frame there are For multiple implementation manners, see the examples in the subsequent embodiments for details.
  • the transmit power adjustment factor is a predetermined value
  • the transmit power adjustment factor is obtained by the station from the first access point.
  • the pre-regulation may be the pre-regulation of the communication protocol, and the station can obtain the transmission power adjustment factor according to the pre-configured communication protocol.
  • the first access point may determine the transmit power adjustment factor, and then the first access point transmits the transmit power adjustment factor to the station. After the station receives the transmit power adjustment factor, the station may determine the physical layer to send the trigger frame The transmit power of the protocol data unit.
  • the second access point may send the transmission power adjustment factor to the station, and after the station receives the transmission power adjustment factor, the station may determine the transmission power of the physical layer protocol data unit based on the trigger frame.
  • obtaining a transmission power adjustment factor by a station includes:
  • the station receives the first media access control MAC frame sent by the first access point, where the first media access control frame includes: the second transmission power of the first media access control frame sent by the first access point;
  • the station determines the third received power for receiving the first media access control frame
  • the station obtains the transmission power adjustment factor according to the second transmission power, the third reception power, and the second reception power.
  • the first MAC frame may be a frame that carries transmission power.
  • the frame that carries transmission power may be a beacon frame, a channel measurement frame, and a coordination frame.
  • the implementation of the first MAC frame is not limited here.
  • the first access point sends the first MAC frame to the station, so that the station receives the first MAC frame, the station obtains the second transmission power of the first access point to send the first media access control frame, and the station can also measure the received.
  • the third received power of the first MAC frame the station can determine the first channel attenuation information between the station and the first access point through the second transmit power and the third received power, and the first channel attenuation information may also be referred to as the first channel attenuation information. Lose information all the way.
  • the station can finally obtain the transmission power adjustment factor according to the second transmission power, the third reception power, and the second reception power. For example, the station determines the first channel attenuation information according to the second transmission power and the third reception power, and then according to the first channel attenuation information And the second received power acquires the second channel attenuation information between the station and the second access point, and then determines the transmit power adjustment factor according to the first channel attenuation information and the second channel attenuation information, and the transmit power adjustment factor may be the first The ratio of the channel attenuation information to the second channel attenuation information. It is not limited that the station obtains the transmission power adjustment factor according to the second transmission power, the third reception power, and the second reception power. Other implementations are also possible.
  • the station obtains the transmission power adjustment factor according to the second transmission power, the third reception power, and the second The received power determines the change ratio of the received power, and then sets the corresponding transmission power adjustment factor based on the change ratio.
  • the specific implementation of the transmission power adjustment factor is not limited.
  • obtaining a transmission power adjustment factor by a station includes:
  • the station receives the first media access control frame sent by the first access point, and receives the second media access control frame sent by the second access point, where the first media access control frame includes: first access The second transmission power for sending the first media access control frame by the point, where the second media access control frame includes: the third transmission power for sending the second media access control frame by the second access point;
  • the station determines the third received power for receiving the first media access control frame, and determines the fourth received power for receiving the second media access control frame;
  • the station obtains the transmission power adjustment factor according to the second transmission power, the third transmission power, the third reception power, and the fourth reception power.
  • the first MAC frame may be a frame that carries transmission power.
  • the frame that carries transmission power may be a beacon frame, a channel measurement frame, and a coordination frame.
  • the implementation of the first MAC frame is not limited here.
  • the first access point sends the first MAC frame to the station, so that the station receives the first MAC frame, the station obtains the second transmission power of the first access point to send the first media access control frame, and the station can also measure the received.
  • the third received power of the first MAC frame the station can determine the first channel attenuation information between the station and the first access point through the second transmit power and the third received power, and the first channel attenuation information may also be referred to as the first channel attenuation information. Lose information all the way.
  • the second access point can also send a second trigger frame.
  • the station can also determine the second channel attenuation information between the station and the second access point, and the second channel attenuation information can also be called second Path loss information.
  • the transmission of the first MAC frame and the second MAC frame may be performed in time sharing.
  • the station obtains the transmission power adjustment factor according to the second transmission power, the third transmission power, the third reception power, and the fourth reception power. For example, the station determines the first channel attenuation information according to the second transmission power and the third reception power, and then according to the first 3. Transmit power and fourth receive power.
  • the transmit power adjustment factor may be It is the ratio of the first channel attenuation information to the second channel attenuation information. It is not limited that the station obtains the transmission power adjustment factor according to the second transmission power, the third transmission power, the third reception power, and the fourth reception power. Other implementation methods are also possible. For example, the station obtains the transmission power adjustment factor according to the second transmission power and the third transmission power.
  • the transmit power determines the change ratio of the transmit power, and the station determines the change ratio of the received power according to the third and fourth received power, and then sets the corresponding transmit power adjustment factor based on the change ratio.
  • the transmit power adjustment factor The method is not limited.
  • obtaining a transmission power adjustment factor by a station includes:
  • the station receives the second media access control frame sent by the second access point, where the second media access control frame includes: the third transmission power at which the second access point sends the second media access control frame;
  • the station determines the fourth received power for receiving the second medium access control frame
  • the station obtains the transmission power adjustment factor according to the third transmission power, the fourth reception power, and the second reception power.
  • the second MAC frame may be a frame that carries transmission power.
  • the frame that carries transmission power may be a beacon frame, a channel measurement frame, and a coordination frame.
  • the implementation of the second MAC frame is not limited here.
  • the second access point sends a second MAC frame to the station, so that the station receives the second MAC frame, the station obtains the second transmission power of the first media access control frame sent by the second access point, and the station can also measure the reception
  • the station can determine the second channel attenuation information between the station and the second access point through the third transmit power and the fourth received power, and the second channel attenuation information may also be called the second channel attenuation information.
  • Two-way loss information Two-way loss information.
  • the station can finally obtain the transmission power adjustment factor according to the third transmission power, the fourth reception power, and the second reception power.
  • the station determines the second channel attenuation information according to the third transmission power and the fourth reception power, and then according to the second channel attenuation information
  • the second received power acquires the first channel attenuation information between the station and the first access point, and then determines the transmit power adjustment factor according to the first channel attenuation information and the second channel attenuation information
  • the transmit power adjustment factor may be the first The ratio of the channel attenuation information to the second channel attenuation information. It is not limited that the station obtains the transmission power adjustment factor according to the third transmission power, the fourth reception power, and the second reception power. Other implementations are also possible.
  • the station obtains the transmission power adjustment factor according to the third transmission power, the fourth reception power, and the second The received power determines the change ratio of the received power, and then sets the corresponding transmission power adjustment factor based on the change ratio.
  • the specific implementation of the transmission power adjustment factor is not limited.
  • step 1912 can be performed first, and then step 1913, or step 1913 can be performed first, and then step 1912 can be performed, or step 1912 and step 1913 can be performed at the same time.
  • step 1912 and step 1913 can be performed at the same time.
  • the station determines the transmit power for transmitting the physical layer protocol data unit based on the trigger frame according to the first transmit power, the first receive power, the second receive power, and the transmit power adjustment factor.
  • the station can use the first transmit power, the first receive power, the second receive power, and the transmit power adjustment factor to jointly determine the physical layer protocol based on the trigger frame.
  • the transmit power of the data unit since the station can receive the trigger frame sent by multiple access points, the station needs to obtain the transmission power adjustment factor, and use the transmission power adjustment factor to determine the transmission power of the physical layer protocol data unit based on the trigger frame. Make adjustments so that the adjusted transmission power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point. Calculate the accuracy of the transmission power of the physical layer protocol data unit based on the trigger frame in the uplink coordination scenario of multiple APs. There are many ways to calculate the transmission power of the physical layer protocol data unit based on the trigger frame. Next Detailed examples.
  • the station determines the transmit power for transmitting the physical layer protocol data unit based on the trigger frame according to the first transmit power, the first receive power, the second receive power, and the transmit power adjustment factor, including:
  • the station determines the transmission power of the physical layer protocol data unit based on the trigger frame in the following way:
  • Pt represents the transmission power of the physical layer protocol data unit based on the trigger frame
  • Ptar represents the first received power
  • P0 represents the first transmission power
  • Pr represents the second received power
  • k represents the transmission power adjustment factor
  • ⁇ is the multiplication
  • the sign, / is the division sign, and + is the addition sign.
  • the station can use the above formula to calculate the transmission power of the physical layer protocol data unit based on the trigger frame, and the station can use the transmission power adjustment factor to adjust the transmission power of the physical layer protocol data unit based on the trigger frame, so that the adjustment Later, the transmit power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point, which improves the power of the multiple APs.
  • the accuracy of the transmission power of the physical layer protocol data unit based on the trigger frame is calculated.
  • the station determines the transmit power for transmitting the physical layer protocol data unit based on the trigger frame according to the first transmit power, the first receive power, the second receive power, and the transmit power adjustment factor, including:
  • the station determines the transmit power of the physical layer protocol data unit based on the trigger frame in the following manner:
  • Pt represents the transmission power of the physical layer protocol data unit based on the trigger frame
  • Ptar represents the first received power
  • P0 represents the first transmission power
  • Pr represents the second received power
  • a represents the transmission power adjustment factor
  • ⁇ is the multiplication
  • the sign, / is the division sign, and + is the addition sign.
  • the station can use the above formula to calculate the transmission power of the physical layer protocol data unit based on the trigger frame, and the station can use the transmission power adjustment factor to adjust the transmission power of the physical layer protocol data unit based on the trigger frame, so that the adjustment Later, the transmit power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point, which improves the power of the multiple APs.
  • the accuracy of the transmission power of the physical layer protocol data unit based on the trigger frame is calculated.
  • the station determines the transmit power for transmitting the physical layer protocol data unit based on the trigger frame according to the first transmit power, the first receive power, the second receive power, and the transmit power adjustment factor, including:
  • the station determines the transmit power of the physical layer protocol data unit based on the trigger frame in the following manner:
  • Pt represents the transmission power of the physical layer protocol data unit based on the trigger frame
  • Ptar represents the first received power
  • P0 represents the first transmission power
  • Pr represents the second received power
  • a represents the transmission power adjustment factor
  • b represents the first The ratio of the transmit power to the transmit power of the second trigger frame sent by the second access point, where ⁇ is a multiplication sign, / is a division sign, and + is an addition sign.
  • the station when the first transmit power is different from the transmit power of the second access point to send the second trigger frame, the station also needs to obtain the ratio of the first transmit power to the transmit power of the second access point to send the second trigger frame, that is, The station needs to obtain the above-mentioned b parameter.
  • the b parameter may be notified to the station by the first access point, or calculated by the station based on the first transmission power and the transmission power of the second trigger frame sent by the second access point It is not limited here.
  • the station can use the above formula to calculate the transmission power of the physical layer protocol data unit based on the trigger frame, and the station can use the transmission power adjustment factor to adjust the transmission power of the physical layer protocol data unit based on the trigger frame, so that the adjusted
  • the transmission power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point, which improves the uplink coordination of multiple APs Calculate the accuracy of the transmission power of the physical layer protocol data unit based on the trigger frame in the scenario.
  • the station determines the transmit power for transmitting the physical layer protocol data unit based on the trigger frame according to the first transmit power, the first receive power, the second receive power, and the transmit power adjustment factor, including:
  • the station determines the transmission power of the physical layer protocol data unit based on the trigger frame in the following way:
  • Target RSSI represents the first received power
  • DL RSSI represents the second received power
  • m represents the transmission power adjustment factor
  • + is the addition symbol
  • the station can use the above formula to calculate the transmission power of the physical layer protocol data unit based on the trigger frame, and the station can use the transmission power adjustment factor to adjust the transmission power of the physical layer protocol data unit based on the trigger frame, so that the adjustment Later, the transmit power of the physical layer protocol data unit based on the trigger frame can be the aforementioned first received power when the physical layer protocol data unit based on the trigger frame arrives at the first access point, which improves the power of the multiple APs.
  • the accuracy of the transmission power of the physical layer protocol data unit based on the trigger frame is calculated.
  • FIG. 20 a schematic diagram of the composition architecture of a cooperative set provided by an embodiment of this application.
  • an STA11 is associated with AP1, and AP1 and AP2 are in the same cooperative set for illustration.
  • P0 The transmit power used when AP1 sends the trigger frame
  • Ptar Estimated received power when the TB PPDU sent by STA11 reaches AP1;
  • Pt the transmit power used by STA11 when sending TB PPDU
  • k1 The signal attenuation coefficient between AP1 and STA11, or the path loss coefficient.
  • the uplink and downlink channels are equal, that is, the attenuation coefficients are the same.
  • k2 The signal attenuation coefficient between AP2 and STA11, or the path loss coefficient.
  • the uplink and downlink channels are equal, that is, the attenuation coefficients are the same.
  • the unit of transmission power is milliwatt mW or watt W.
  • AP2 and AP1 use the same transmission power.
  • Two APs jointly send a trigger frame with the same content, and there is only one AP transmit power setting parameter in the trigger frame.
  • the following embodiment introduces the calculation method of Pt when the two transmission powers are different.
  • a parameter a is used in formula (3), that is, the ratio of the attenuation coefficient k2 to k1.
  • A can be obtained in a variety of ways.
  • AP can carry transmission power in a beacon frame, and STA11 receives AP1 and AP2 respectively.
  • the beacon frame to obtain the values of k1 and k2, and then obtain the value of a.
  • STA11 obtains the value of k1 by receiving the AP1 beacon frame, or obtains the value of k2 by receiving the AP2 beacon frame, and then obtains the value of k1+k2 by measuring the coordinated uplink trigger frame sent by AP1 and AP2, and then obtains the value of a Numerical value.
  • AP1 sends a frame carrying transmit power before sending the coordinated uplink trigger frame.
  • the frame can be a frame dedicated to channel measurement, or it can be a frame in the uplink coordination and negotiation process.
  • STA11 obtains the value of k1 according to this frame measurement. Then, the value of k1+k2 is obtained by measuring the coordinated uplink trigger frame sent by AP1 and AP2, and then the value of a is obtained.
  • AP1 and AP2 respectively send a frame carrying transmit power at different times.
  • STA11 obtains the values of k1 and k2 according to these two frame measurements. Then the value of a is obtained.
  • the access point sends a separate frame to measure k1 and k2.
  • the beacon frame is sent periodically, with a typical period of 0.1 second. It may also be longer. In this way, the time interval between the sending of the coordinated uplink trigger frame and the beacon frame may be relatively large, resulting in large changes in the transmission of the channel and attenuation coefficient, and thus the calculated transmission power is inaccurate.
  • Sending a measurement frame before the coordinated uplink trigger frame can ensure that the time interval between the measurement frame and the coordinated uplink trigger frame is short, and the channel attenuation coefficient does not change much, so that the calculated transmission power is more accurate.
  • P2 uses P2 power to send a coordinated uplink trigger frame
  • P2 b ⁇ P0.
  • P2 or parameter b needs to be carried in the coordinated uplink trigger frame, or notify the STA11 through negotiation.
  • the manner in which the STA11 obtains the value of P2 or b is not limited.
  • each AP uses transmit power P0 when sending a coordinated uplink trigger frame.
  • the channel attenuation coefficient between APn and STA11 is kn.
  • Pr (k1+k2+...kn) ⁇ P0 (7)
  • the attenuation coefficient is a natural number when the above method is introduced, and a logarithmic method can also be used when calculating the attenuation in the communication field. For details, see the examples in the subsequent embodiments.
  • the STA can calculate the transmission power of TB PPDU in the uplink coordination mechanism of multiple APs, and can accurately calculate the transmission power of TB PPDU, which solves the problem of uplink coordination among multiple APs.
  • the parameter a or k can be in a fixed form, that is, it is specified in the communication protocol standard, and all coordination sites use this value for power calculation.
  • the parameter a or k may also be determined by the AP.
  • the AP calculates a value of a or k based on the location of the AP in the coordination set and other information, and then sends it to the coordinated station, and the coordinated station uses the value for power calculation.
  • the station uses a fixed or semi-fixed parameter to calculate the transmission power of the TB PPDU in the uplink coordination mechanism, thereby simplifying the calculation process of the transmission power of the TB PPDU.
  • the unit of the transmission power is decibel milliwatts.
  • dBm decibel relative to one milliwatt, dBm
  • dB decibel, dB
  • dB decibel, dB
  • Target RSSI Estimated received power when the TB PPDU sent by STA11 reaches AP1;
  • DL RSSI Trigger the received signal of the frame at STA11;
  • PL DL1 The signal attenuation coefficient between AP1 and STA11, or the path loss coefficient.
  • the uplink and downlink channels are equal, that is, the attenuation coefficients are the same.
  • PL DL2 The signal attenuation coefficient between AP2 and STA11, or the path loss coefficient.
  • the uplink and downlink channels are equal, that is, the attenuation coefficients are the same.
  • the received power of AP1 only passes through the path loss PL DL1 , and it is assumed that the uplink and downlink path losses are the same. Therefore,
  • the AP can carry transmission power in the beacon frame sent, and the STA11 obtains the values of PL DL1 and PL DL2 by receiving the beacon frames of AP1 and AP2 respectively, and then obtains the value of m.
  • STA11 obtains the value of PL DL1 by receiving the AP1 beacon frame, or obtains the value of PL DL2 by receiving the AP2 beacon frame, and then obtains the channel superimposed by measuring the coordinated uplink trigger frame sent by AP1 and AP2. Receive power, and then obtain the value of m.
  • AP1 sends a frame carrying transmit power before sending the coordinated uplink trigger frame.
  • the frame can be a frame dedicated to channel measurement, or it can be a frame in the uplink cooperative negotiation process.
  • STA11 obtains the value of PL DL1 according to this frame measurement. Then by measuring the coordinated uplink trigger frames sent by AP1 and AP2, the received power after channel superposition is obtained, and then the value of m is obtained.
  • AP1 and AP2 before sending the coordinated uplink trigger frame, respectively send a frame carrying transmit power at different times.
  • STA11 obtains the values of PL DL1 and PL DL2 according to these two frame measurements. Then obtain the value of m;
  • the advantage of sending a frame to measure m and obtaining the value of m through beacon frame measurement is that the beacon frame is sent periodically, with a typical period of 0.1 second, or Longer.
  • the time interval between the transmission of the coordinated uplink trigger frame and the beacon frame may be relatively large, resulting in large changes in the channel and attenuation coefficient transmission, and the calculated transmission power is not accurate.
  • Sending a measurement frame before the coordinated uplink trigger frame can ensure that the time interval between the measurement frame and the coordinated uplink trigger frame is short, and the channel attenuation coefficient does not change much, so that the calculated transmission power is more accurate.
  • each AP uses transmit power when sending coordinated uplink trigger frames
  • the channel attenuation coefficient between APn and STA11 is PL DLn .
  • the unit of transmit power is decibels, milliwatts, and dBm.
  • m is a changing value.
  • the positions of APs and STAs will affect the value of m.
  • the distance between the STA11 and the associated access point AP1 is generally shorter than the distance to AP2, correspondingly, the signal received from AP1 will be stronger than the signal from AP2 when the transmission strength is equal. Therefore, the value range of m will be between 0dB and 3dB.
  • a fixed parameter m can be set through measurement and statistics of typical scenarios, and all stations use the fixed parameter for power calculation.
  • the parameter m can be in a fixed form, that is, specified in the communication protocol, and all cooperative sites use this value for power calculation.
  • the parameter m can also be determined by the AP.
  • the AP calculates a value of m based on information such as the location of the AP in the cooperation set, and then sends it to the coordinated station, and the coordinated station uses this value for power calculation.
  • the STA in the embodiment of this application measures the path loss information between itself, the associated AP and the cooperative AP, and then compensates the transmission power of the TB PPDU, so that the power intensity to reach the associated AP is equal to AP1.
  • FIG. 21 shows a schematic block diagram of a communication device 2100 according to an embodiment of the present application.
  • the apparatus 2100 shown in FIG. 21 may correspond to the communication apparatus in the foregoing method embodiment, and may have any function of the first access point or STA in the method.
  • the The device 2100 may be the first access point or a chip in the first access point.
  • the device 2100 in the embodiment of the present application may be a station or a chip in the station.
  • the device 2100 may include a processing module 2110 and a transceiver module 2120.
  • the device 2100 may further include a storage module 2130.
  • the communication device 2100 is the first access point or a chip in the first access point.
  • the processing module 2110 can be used to generate the signaling or data information sent in the foregoing method embodiment, for example, to generate the trigger frame sent in step 301; it can also be used to control the transceiver module 2120 to send the STA to the STA according to the trigger frame. Send trigger frame.
  • step 302 can be performed.
  • the processing module 2110 can also be used to generate the PPDU in step 1801.
  • the processing module 2110 may also be used to generate the first trigger frame in step 1901.
  • the transceiver module 2120, the transceiver module is used to support the first access point AP, the station, and communication with other nodes. It can be understood that the transceiver module may include a receiving module and a sending module. The sending module can be used to execute step 302, step 1802, and step 1902 in the foregoing method embodiment.
  • the communication device 2100 is a site or a chip in the site;
  • the processing module 2110 can parse and process the signaling or data information sent in the foregoing method embodiments, for example, notification information. For example, step 306 can be performed.
  • the processing module 2110 may also be used to generate the signaling sent in the foregoing embodiment, such as a trigger frame.
  • the processing module 2110 may also determine to perform step 312, step 1812, and steps 1912 to 1914 in the foregoing embodiment.
  • the transceiver module 2120 is used to support communication between the site AP and the first AP, and other nodes. It can be understood that the transceiver module may include a receiving module and a sending module. Wherein, the receiving module can be used to execute step 311, step 1811, and step 1911 in the foregoing method embodiment.
  • the device 2100 may correspond to the first access point or STA in the methods of the foregoing embodiments, and the above and other management operations and/or functions of the modules in the device 2100 are respectively for For the sake of brevity, the corresponding steps for implementing the aforementioned methods will not be repeated here.
  • the device 2100 may also be configured as a general-purpose processing system, such as a general-purpose chip.
  • the processing module 2110 may include: one or more processors that provide processing functions; the transceiver module 2120 may be, for example, an input/output interface, Pins or circuits, etc., the input/output interface can be used for information interaction between this chip system and the outside world. For example, this input/output interface can output the transmission control information generated by the first access point AP to other modules outside the chip To process.
  • the processing module can execute the computer-executable instructions stored in the storage module to implement the function of the first access point in the foregoing method embodiment.
  • the storage module 2130 optionally included in the device 2100 may be a storage unit in the chip, such as a register, a cache, etc., and the storage module 2130 may also be a storage unit located outside the chip, such as a read-only memory ( read-only memory (ROM for short) or other types of static storage devices that can store static information and instructions, random access memory (RAM for short), etc.
  • ROM read-only memory
  • RAM random access memory
  • FIG. 22 shows a schematic block diagram of another communication device 2200 according to an embodiment of the present application.
  • the apparatus 2200 in the embodiment of the present application may be the first access point or STA in the foregoing method embodiment, and the apparatus 2200 may be used to perform part or all of the functions of the first access point or STA in the foregoing method embodiment.
  • the device 2200 may include a processor 2210, a baseband circuit 2230, a radio frequency circuit 2240, and an antenna 2250.
  • the device 2200 may further include a memory 2220.
  • the various components of the device 2200 are coupled together via a bus.
  • the bus system also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as bus systems in the figure.
  • the processor 2210 may be used to control the first access point or the STA, and may be used to perform the processing performed by the first access point or the STA in the above-mentioned embodiment, and may perform the above-mentioned method embodiment involving the first access point or
  • the STA processing process and/or other processes used in the technology described in this application can also run an operating system, manage the bus, and can execute programs or instructions stored in the memory.
  • the baseband circuit 2230, the radio frequency circuit 2240, and the antenna 2250 can be used to support the sending and receiving of information between the first access point and the second access point or station involved in the above-mentioned embodiment, so as to support the communication between the first access point and other nodes. Perform wireless communication.
  • the transmission control information sent by the first access point can be processed by the processor 2210, packaged in accordance with the protocol, encoding and other baseband processing through the baseband circuit 2230, and further processed by the radio frequency circuit 2240 for analog conversion, filtering, amplification, and upconversion. After processing, it is sent to the second access point AP via the antenna 2250.
  • the baseband circuit 2230, the radio frequency circuit 2240, and the antenna 2250 can also be used to support the first access point to communicate with other network entities.
  • the memory 2220 may be used to store the program code and data of the first access point or STA, and the memory 2220 may be the storage module 2130 in FIG. 21.
  • the memory 2220 in FIG. 22 is shown as being separated from the processor 2210. However, those skilled in the art can easily understand that the memory 2220 or any part thereof may be located outside the device 2200.
  • the memory 2220 may include a transmission line and/or a computer product separated from the wireless node, and these media may be accessed by the processor 2210 through a bus interface.
  • the memory 2220 or any part thereof may be integrated into the processor 2210, for example, it may be a cache and/or a general-purpose register.
  • the transceiver module 2120 in FIG. 21 may include a baseband circuit 2230, a radio frequency circuit 2240, and an antenna 2250; the processing module 2110 may be a processor 2210; in another example, the transceiver module 2120 in FIG. 21 may only include FIG. 22 In the antenna, the processing module 2110 may include not only a processor 2210, but also a radio frequency circuit 2240 and a baseband circuit 2230; in another example, the processing module 2110 in FIG. 21 may include a processor 2210, and a baseband circuit 2230; a transceiver module 2120 A radio frequency circuit 2240 and an antenna 2250 may be included.
  • FIG. 22 only shows a simplified design of the first access point or STA.
  • the first access point or STA may include any number of transmitters, receivers, processors, memories, etc., and all the first access points or STAs that can implement the embodiments of the present application are in this application. Within the protection scope of the application embodiments.
  • the embodiment of the present application also provides a computer storage medium, and the computer-readable storage medium stores instructions, and the instructions can be executed by one or more processors on the processing circuit. When it runs on a computer, it causes the computer to execute the methods described in the above aspects.
  • the embodiment of the present application also provides a chip system.
  • the chip system includes a processor for supporting a distributed unit, a centralized unit, and a first access point to implement the functions involved in the above-mentioned embodiments, such as generating or Process the data and/or information involved in the above methods.
  • the chip system may further include a memory for storing necessary program instructions and data for the distributed unit, the centralized unit, and the first access point.
  • the chip system can be composed of chips, or include chips and other discrete devices.
  • An embodiment of the present application also provides a processor, which is configured to be coupled with a memory and configured to execute the method and function related to the first access point AP in any of the foregoing embodiments.
  • the embodiments of the present application also provide a processor, which is configured to be coupled with a memory and used to execute the method and function related to the STA in any one of the foregoing embodiments.
  • the embodiment of the present application also provides a computer program product containing instructions, which when running on a computer, causes the computer to execute the method and function related to the first access point AP in any of the foregoing embodiments.
  • the embodiment of the present application also provides a computer program product containing instructions, which when running on a computer, causes the computer to execute the method and function related to the STA in any of the foregoing embodiments.
  • An embodiment of the present application also provides a wireless communication system, which includes the first access point, at least one second access point, and at least one STA involved in the foregoing embodiment.
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
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Abstract

本申请实施例公开了一种上行协调的通信方法和装置，可应用于多种Wi-Fi标准中的上行协调场景中。在本申请实施例提供的方法中，第一接入点生成的触发帧可以包括：多个基本服务集的标识信息和站点的标识信息，该触发帧可以触发多个BSS进行上行协调，且对于第一接入点而言，可以在触发帧携带一个BSS中被触发的站点的标识，因此第一接入点可以独立配置该第一接入点关联的站点的标识信息，不需要保证在多个BSS中站点的标识是唯一的，增加了第一接入点配置被触发的站点的标识信息的灵活性，实现接入点和站点在多个接入点的上行协调场景下进行通信。

Description

一种上行协调的通信方法和装置
本申请要求于2020年3月18日提交中国专利局、申请号为202010195354.1、发明名称为“一种上行协调的通信方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种上行协调的通信方法和装置。
背景技术
移动通信网络中的一个区域可以通过多个接入点(access point，AP)进行覆盖，相邻的接入点之间通过协调，可以提升系统效率，降低干扰。其中，一个接入点与多个关联的站点(station，STA)组成的系统为一个基本服务集(basic service set，BSS)。在多个接入点的场景下，每个站点会选择其中一个接入点进行关联。基本服务集内或者不同基本服务集之间的站点通过竞争来获得信道使用权。
在多个接入点的上行协调场景中，多个接入点通过协商可以建立上行协调关系，并交换上行协调中的关联参数，例如关联参数可以包括参加协调的站点、每个站点所使用的空间流的个数、上行发送时长等。在多个接入点完成协商之后，多个接入点中的至少一个接入点和站点之间如何进行通信，目前还没有基于多个接入点的上行协调场景的通信方案，导致接入点和站点无法在多个接入点的上行协调场景下进行通信。
例如，接入点通过触发帧调度站点时需要使用关联标识符(association identifier，AID)，关联标识符在一个基本服务集内是唯一的，但是在使用触发帧调度协作集中多个基本服务集中的站点时，由于涉及到多个基本服务集，导致关联标识符不再唯一。为了避免使用关联标识符的冲突，要求所有协调的基本服务集中的站点使用不重复的关联标识符，这会造成每个基本服务集中站点的可用关联标识符个数变小，导致在多个接入点的上行协调场景中能够支持的最大站点数目变小，且所有协调的基本服务集中的接入点需协商一个公共的关联标识符空间，导致协作传输的流程复杂和协调通信的效率较低。
发明内容
本申请实施例提供了一种上行协调的通信方法和装置，用于实现接入点和站点在多个接入点的上行协调场景下进行通信。
为解决上述技术问题，本申请实施例提供以下技术方案：
第一方面，本申请实施例提供一种通信装置，所述通信装置应用于站点中，所述通信装置包括：收发器，用于接收第一接入点AP发送的触发帧，所述触发帧用于触发所述站点发送基于触发帧的物理层协议数据单元PPDU，所述站点属于多个基本服务集中的一个基本服务集，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；处理器，用于确定需要发送所述基于触发帧的物理层协议数据单元PPDU。在该方案中，第一接入点生成的触发帧可以包括：多个基本服务集的标识信息和站点的标识信息，该触发帧可 以触发多个BSS进行上行协调，且对于第一接入点而言，可以在触发帧携带一个BSS中被触发的站点的标识，因此第一接入点可以独立配置该第一接入点关联的站点的标识信息，不需要保证在多个BSS中站点的标识是唯一的，增加了第一接入点配置被触发的站点的标识信息的灵活性，实现接入点和站点在多个接入点的上行协调场景下进行通信。
第二方面，本申请实施例提供一种通信装置，所述通信装置应用于第一接入点AP中，所述通信装置包括：处理器，用于生成触发帧，所述触发帧用于触发多个基本服务集BSS中的站点STA发送基于触发帧的物理层协议数据单元PPDU，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；收发器，用于向所述站点发送所述触发帧。在该方案中，第一接入点生成的触发帧可以包括：多个基本服务集的标识信息和站点的标识信息，该触发帧可以触发多个BSS进行上行协调，且对于第一接入点而言，可以在触发帧携带一个BSS中被触发的站点的标识，因此第一接入点可以独立配置该第一接入点关联的站点的标识信息，不需要保证在多个BSS中站点的标识是唯一的，增加了第一接入点配置被触发的站点的标识信息的灵活性，实现接入点和站点在多个接入点的上行协调场景下进行通信。
在一种可能的实现方式中，所述多个基本服务集的标识信息包括如下至少一种：所述多个基本服务集分别对应的基本服务集颜色、所述多个基本服务集分别对应的接入点标识、所述多个基本服务集分别对应的基本服务集标识、所述多个基本服务集分别对应的接入点的媒体介入控制MAC地址；所述站点的标识信息包括：所述站点的关联标识AID。在该方案中，基本服务集的标识信息具有多种实现方式，例如，基本服务集的标识信息包括如下至少一种：基本服务集颜色、基本服务集对应的接入点标识、基本服务集标识、基本服务集对应的接入点的MAC地址。可选的，基本服务集的标识信息还可以是部分的基本服务集标识，例如对基本服务集标识进行截取其中的一部分标识作为基本服务集的标识信息。又如，基本服务集的标识信息可以是基本服务集对应的接入点的部分MAC地址，站点的标识信息具有多种实现方式，例如STA的AID可以作为STA的标识信息，STA的AID可以由第一AP分配给STA，或者采用STA的MAC地址作为STA的标识信息。
在一种可能的实现方式中，所述触发帧包括：第一字段和所述第一字段对应的至少一个第一用户信息字段，其中，所述第一字段包括：所述多个基本服务集中的至少一个基本服务集的标识信息；一个第一用户信息字段包括：所述至少一个基本服务集中的一个被触发的站点的标识信息；所述至少一个第一用户信息字段在所述触发帧中位于所述第一字段之后。在该方案中，通过触发帧中包括的第一字段和第一字段对应的至少一个第一用户信息字段，可以指示多个基本服务集的标识信息和被触发的站点的标识信息，从而使得接收到触发帧的站点通过解析第一字段和第一用户信息字段，获取到触发帧中包括的基本服务集的标识信息和站点的标识信息，以便准确地确定该站点是否未被触发的站点，若确定自身为被该触发帧触发(或调度)的站点，则该站点发送TB PPDU。
在一种可能的实现方式中，所述第一字段承载于所述触发帧中的第二用户信息字段；或者，所述第一字段承载于所述触发帧中的公共信息字段；或者，所述第一字段承载于所述触发帧中的协调字段。在该方案中，第一字段承载于第二用户信息字段，对于第一字段在第二用户信息字段中的位置，后续实施例中可以将第二用户信息字段称为特殊的user  info字段，或者第二用户信息字段可以称为取值为特殊值的AID12子字段的user info字段。例如第一字段可以为在公共信息字段中的最后一个字段，或者第一字段为在公共信息字段中的中间位置，对于第一字段在第二用户信息字段中的位置。例如协调字段可以部署在触发帧中的公共信息字段中的最后一个位置，或者协调字段部署在触发帧中的公共信息字段之后。进一步的，协调字段部署在触发帧中的公共信息字段之后，且协调字段与公共信息字段相邻。
在一种可能的实现方式中，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述至少一个基本服务集不包括所述第一接入点对应的第一基本服务集，且所述第一字段在所述触发帧中位于所述第一基本服务集对应的第一用户信息字段之后。在该方案中，第一接入点对应的第一基本服务集不通过第一字段进行指示，从而节省了触发帧的指示开销。
在一种可能的实现方式中，所述触发帧包括多个的所述第一字段，和多个的所述第一字段分别对应的至少一个第一用户信息字段。在该方案中，触发帧中的一个第一字段的长度是固定的，若一个第一字段无法指示用于上行协调的所有基本服务集的标识信息，则在触发帧中需要包括多个的第一字段，通过多个的第一字段可以指示用于上行协调的所有基本服务集的标识信息，从而触发帧可以指示用于上行协调的所有基本服务集的标识信息。
在一种可能的实现方式中，若所述第一字段承载于所述触发帧中的公共信息字段，所述公共信息字段包括：触发类型子字段和基于触发类型的公共信息子字段；所述触发类型子字段，用于指示所述触发帧的触发类型；所述基于触发类型的公共信息子字段包括：所述第一字段。在该方案中，触发帧中的公共信息字段可以用于承载第一字段，从而通过触发帧中的公共信息字段可以指示用于上行协调的所有基本服务集的标识信息。
在一种可能的实现方式中，若所述第一字段为所述触发帧中的协调字段，所述触发帧还包括：公共信息字段，所述公共信息字段，用于指示所述触发帧的触发类型；所述协调字段在所述触发帧中位于所述公共信息字段之后。在该方案中，触发帧中的协调字段可以用于承载第一字段，从而通过触发帧中的协调字段可以指示用于上行协调的所有基本服务集的标识信息。
在一种可能的实现方式中，所述第一字段包括：至少一个的基本服务集标识子字段；一个基本服务集标识子字段，用于指示所述至少一个基本服务集中的一个基本服务集的标识信息。在该方案中，通过基本服务集标识子字段可以指示至少一个基本服务集中的一个基本服务集的标识信息，从而使得站点可以通过解析该基本服务集标识子字段，获取到基本服务集的标识信息。
在一种可能的实现方式中，所述至少一个的基本服务集标识子字段中的一个基本服务集标识子字段为第一值，所述第一值用于指示所述第一字段中不包括取值为所述第一值的基本服务集标识子字段之后的基本服务集标识子字段。在该方案中，通过设置携带第一值的基本服务集标识子字段，可以指示出第一字段所指示的所有基本服务集的标识信息。
在一种可能的实现方式中，所述第一值为全0或者全1。在该方案中，一个基本服务集标识子字段携带的值为全0或者全1时，可以确定该基本服务集标识子字段是最后一个基本服务集标识子字段，且第一字段中不包括取值为第一值的基本服务集标识子字段之后的基本服务集标识子字段。
在一种可能的实现方式中，所述第一字段包括：至少一个的用户信息个数子字段；一个用户信息个数子字段，用于指示所述至少一个基本服务集中的一个基本服务集对应的第一用户信息字段的个数。在该方案中，站点可以解析第一字段中的用户信息个数子字段，可以获取到基本服务集对应的第一用户信息字段的个数，从而获取到基本服务集中被触发的站点个数。
在一种可能的实现方式中，所述至少一个的用户信息个数子字段中的一个用户信息个数子字段为第二值，所述第二值用于指示所述第一字段中不包括取值为所述第二值的用户信息个数子字段之后的用户信息个数子字段。在该方案中，通过设置携带第二值的用户信息个数子字段，可以指示出第一字段所指示的所有基本服务集对应的用户信息个数子字段。
在一种可能的实现方式中，所述第二值为全0或者全1。在该方案中，一个用户信息个数子字段携带的值为全0或者全1时，站点可以确定携带第二值的用户信息个数子字段所对应的基本服务集是至少一个基本服务集中的最后一个基本服务集，且该最后一个基本服务集中不包含被触发的站点，且第一字段在携带第二值的用户信息个数子字段之后不包括用户信息个数子字段。
在一种可能的实现方式中，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述第一字段包括：关联标识子字段；所述关联标识子字段，用于指示所述第一字段的类型；所述关联标识子字段的值为特殊的AID。在该方案中，通过关联标识子字段可以指示第一字段的类型，从而站点在接收到触发帧之后，可以解析该触发帧中的第一字段包括的关联标识子字段，确定出第一字段的类型。然后站点从第一字段中获取到第一字段所指示的基本服务集的标识信息。
在一种可能的实现方式中，所述第一字段包括：基本服务集个数子字段；所述基本服务集个数子字段，用于指示所述至少一个基本服务集的个数。在该方案中，通过设置基本服务集个数子字段，可以指示出第一字段所指示的所有基本服务集的标识信息。
第三方面，本申请实施例还提供一种上行协调的通信方法，包括：站点STA接收第一接入点AP发送的触发帧，所述触发帧用于触发所述站点发送基于触发帧的物理层协议数据单元PPDU，所述站点属于多个基本服务集中的一个基本服务集，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；所述站点确定需要发送所述基于触发帧的物理层协议数据单元PPDU。在该方案中，第一接入点生成的触发帧可以包括：多个基本服务集的标识信息和站点的标识信息，该触发帧可以触发多个BSS进行上行协调，且对于第一接入点而言，可以在触发帧携带一个BSS中被触发的站点的标识，因此第一接入点可以独立配置该第一接入点关联的站点的标识信息，不需要保证在多个BSS中站点的标识是唯一的，增加了第一接入点配置被触发的站点的标识信息的灵活性，实现接入点和站点在多个接入点的上行协调场景下进行通信。
第四方面，本申请实施例还提供一种上行协调的通信方法，包括：第一接入点AP生成触发帧，所述触发帧用于触发多个基本服务集BSS中的站点STA发送基于触发帧的物理层协议数据单元PPDU，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；所述第一接入点向所述站点发送所述触发帧。在该方案中，第一接入点生成的触发帧可以包括：多个基本服务集的标识信息和站点的标识信息，该触发帧可以触发多个BSS 进行上行协调，且对于第一接入点而言，可以在触发帧携带一个BSS中被触发的站点的标识，因此第一接入点可以独立配置该第一接入点关联的站点的标识信息，不需要保证在多个BSS中站点的标识是唯一的，增加了第一接入点配置被触发的站点的标识信息的灵活性，实现接入点和站点在多个接入点的上行协调场景下进行通信。
第五方面，本申请实施例还提供一种上行协调的通信方法，包括：第一接入点AP生成物理层协议数据单元PPDU，所述物理层协议数据单元包括媒体接入控制MAC帧，所述物理层协议数据单元包括：协调指示信息，所述协调指示信息用于指示所述MAC帧的目标接收站点是否包括通信装置，所述通信装置包括如下至少一种：第二接入点和所述第二接入点关联的站点，所述第一接入点和所述第二接入点属于同一个协作集；所述第一接入点向所述通信装置发送所述物理层协议数据单元。在该方案中，通过在PPDU增加协调指示信息，使得协作的站点能够尽早区分该PPDU承载的MAC帧是否与协作相关，从而站点可以尽早的进行功率节省或者空间复用。
第六方面，本申请实施例还提供一种上行协调的通信方法，包括：通信装置接收第一接入点AP发送的物理层协议数据单元PPDU，所述物理层协议数据单元包括媒体接入控制MAC帧，所述物理层协议数据单元包括：协调指示信息，所述协调指示信息用于指示所述MAC帧的目标接收站点是否包括所述通信装置，所述通信装置包括如下至少一种：第二接入点和所述第二接入点关联的站点，所述第一接入点和所述第二接入点属于同一个协作集；所述通信装置根据所述协调指示信息确定是否解析所述MAC帧。在该方案中，通过在PPDU增加协调指示信息，使得协作的站点能够尽早区分该PPDU承载的MAC帧是否与协作相关，从而站点可以尽早的进行功率节省或者空间复用。
在一种可能的实现方式中，所述物理层协议数据单元包括：信令SIG字段；所述协调指示信息承载于所述信令字段中。
在一种可能的实现方式中，所述协调指示信息占用1个比特；若所述协调指示信息承载第一值，所述协调指示信息用于指示所述MAC帧的目标接收站点包括所述通信装置；或，若所述协调指示信息承载第二值，所述协调指示信息用于指示所述MAC帧的目标接收站点不包括所述通信装置。
第七方面，本申请实施例还提供一种上行协调的通信方法，包括：站点STA接收第一接入点AP发送的第一触发帧，以及，接收至少一个第二接入点发送的第二触发帧，其中，所述站点和所述第一接入点属于同一个基本服务集BSS，所述站点和所述至少一个第二接入点属于不同的基本服务集；所述第一触发帧，和/或所述第二触发帧，用于指示所述站点发送基于触发帧的物理层协议数据单元PPDU，其中，所述第一触发帧包括：所述第一接入点发送所述第一触发帧的第一发送功率，和，所述第一接入点估计的所述站点发送的所述基于触发帧的物理层协议数据单元到达所述第一接入点的第一接收功率；所述站点确定接收所述第一触发帧和所述第二触发帧的第二接收功率；所述站点获取发送功率调整因子，其中，所述发送功率调整因子，用于调整发送所述基于触发帧的物理层协议数据单元的发送功率；所述站点根据所述第一发送功率、所述第一接收功率、所述第二接收功率和所述发送功率调整因子，确定发送所述基于触发帧的物理层协议数据单元的发送功率。在该方案中，站点可以接收多个接入点发送的触发帧，例如站点接收到了第一接入点发送的第一 触发帧，以及接收至少一个第二接入点发送的第二触发帧。站点确定接收触发帧和第二触发帧的第二接收功率，站点可以根据第一发送功率、第一接收功率、第二接收功率和发送功率调整因子，确定发送基于触发帧的物理层协议数据单元的发送功率，实现站点在多个接入点发送触发帧的情况下可以准确计算发送基于触发帧的PPDU的发送功率的效果，实现接入点和站点在多个接入点的上行协调场景下进行通信。
在一种可能的实现方式中，所述确定发送所述基于触发帧的物理层协议数据单元的发送功率，包括：所述站点通过如下方式确定发送所述基于触发帧的物理层协议数据单元的发送功率：Pt＝Ptar×P0×k/Pr；其中，所述Pt表示发送所述基于触发帧的物理层协议数据单元的发送功率，所述Ptar表示所述第一接收功率，所述P0表示所述第一发送功率，所述Pr表示所述第二接收功率，所述k表示所述发送功率调整因子，所述×为相乘符号，所述/为相除符号，所述+为相加符号。
在一种可能的实现方式中，所述确定发送所述基于触发帧的物理层协议数据单元的发送功率，包括：若所述第一发送功率与所述第二接入点发送所述第二触发帧的发送功率相同，所述站点通过如下方式确定发送所述基于触发帧的物理层协议数据单元的发送功率：Pt＝Ptar×P0×(1+a)/Pr；其中，所述Pt表示发送所述基于触发帧的物理层协议数据单元的发送功率，所述Ptar表示所述第一接收功率，所述P0表示所述第一发送功率，所述Pr表示所述第二接收功率，所述a表示所述发送功率调整因子，所述×为相乘符号，所述/为相除符号，所述+为相加符号。在该方案中，站点可以使用上述公式计算出发送基于触发帧的物理层协议数据单元的发送功率，站点可以使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议数据单元的发送功率的准确性。
在一种可能的实现方式中，所述确定发送所述基于触发帧的物理层协议数据单元的发送功率，包括：若所述第一发送功率与所述第二接入点发送所述第二触发帧的发送功率不相同，所述站点通过如下方式确定发送所述基于触发帧的物理层协议数据单元的发送功率：Pt＝Ptar×P0×(1+a×b)/Pr；其中，所述Pt表示发送所述基于触发帧的物理层协议数据单元的发送功率，所述Ptar表示所述第一接收功率，所述P0表示所述第一发送功率，所述Pr表示所述第二接收功率，所述a表示所述发送功率调整因子，所述b表示所述第一发送功率和所述第二接入点发送所述第二触发帧的发送功率的比值，所述×为相乘符号，所述/为相除符号，所述+为相加符号。在该方案中，站点可以使用上述公式计算出发送基于触发帧的物理层协议数据单元的发送功率，站点可以使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议数据单元的发送功率的准确性。
在一种可能的实现方式中，所述确定发送所述基于触发帧的物理层协议数据单元的发送功率，包括：所述站点通过如下方式确定发送所述基于触发帧的物理层协议数据单元的 发送功率：
Figure PCTCN2021079962-appb-000001
其中，所述
Figure PCTCN2021079962-appb-000002
表示发送所述基于触发帧的物理层协议数据单元的发送功率，所述Target RSSI表示所述第一接收功率，所述
Figure PCTCN2021079962-appb-000003
表示所述第一发送功率，所述DL RSSI表示所述第二接收功率，所述m表示所述发送功率调整因子，所述+为相加符号，所述–为相减符号。在该方案中，站点可以使用上述公式计算出发送基于触发帧的物理层协议数据单元的发送功率，站点可以使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议数据单元的发送功率的准确性。
在一种可能的实现方式中，所述发送功率调整因子是预先规定的数值；或者，所述发送功率调整因子是所述站点从所述第一接入点获取到的。在该方案中，预先规定可以是通信协议的预先规定，则站点可以根据预先配置的通信协议获取到发送功率调整因子。又如，第一接入点可以确定发送功率调整因子，然后第一接入点向站点发送发送功率调整因子，站点接收到该发送功率调整因子之后，站点可以确定出发送基于触发帧的物理层协议数据单元的发送功率。又如，第二接入点可以向站点发送发送功率调整因子，站点接收到该发送功率调整因子之后，站点可以确定出发送基于触发帧的物理层协议数据单元的发送功率。
在一种可能的实现方式中，所述站点获取发送功率调整因子，包括：所述站点接收所述第一接入点发送的第一媒体接入控制MAC帧，其中，所述第一媒体接入控制帧包括：所述第一接入点发送所述第一媒体接入控制帧的第二发送功率；所述站点确定接收所述第一媒体接入控制帧的第三接收功率；所述站点根据所述第二发送功率、所述第三接收功率和所述第二接收功率获取所述发送功率调整因子。
在一种可能的实现方式中，所述站点获取发送功率调整因子，包括：所述站点接收所述第一接入点发送的第一媒体接入控制帧，和，接收所述第二接入点发送的第二媒体接入控制帧，其中，所述第一媒体接入控制帧包括：所述第一接入点发送所述第一媒体接入控制帧的第二发送功率，所述第二媒体接入控制帧包括：所述第二接入点发送所述第二媒体接入控制帧的第三发送功率；所述站点确定接收所述第一媒体接入控制帧的第三接收功率，以及，确定接收所述第二媒体接入控制帧的第四接收功率；所述站点根据所述第二发送功率、所述第三发送功率、所述第三接收功率和所述第四接收功率，获取所述发送功率调整因子。
在一种可能的实现方式中，所述站点获取发送功率调整因子，包括：所述站点接收所述第二接入点发送的第二媒体接入控制帧，其中，所述第二媒体接入控制帧包括：所述第二接入点发送所述第二媒体接入控制帧的第三发送功率；所述站点确定接收所述第二媒体接入控制帧的第四接收功率；所述站点根据所述第三发送功率、所述第四接收功率和所述第二接收功率获取所述发送功率调整因子。
第八方面，本申请实施例还提供一种上行协调的通信方法，包括：第一接入点AP生成第一触发帧，其中，所述第一触发帧用于指示站点发送基于触发帧的物理层协议数据单元PPDU，所述第一触发帧包括：所述第一接入点发送所述第一触发帧的第一发送功率，和，所述第一接入点估计的所述站点发送的所述基于触发帧的物理层协议数据单元到达所述第 一接入点的第一接收功率；所述第一接入点向所述站点发送所述触发帧。在该方案中，第一接入点可以向站点发送第一触发帧，使得站点在多个接入点发送触发帧的情况下可以准确计算发送基于触发帧的PPDU的发送功率的效果，实现接入点和站点在多个接入点的上行协调场景下进行通信。
在一种可能的实现方式中，所述方法还包括：所述第一接入点向所述站点发送第一媒体接入控制MAC帧，其中，所述第一媒体接入控制帧包括：所述第一接入点发送所述第一媒体接入控制帧的第二发送功率。
在一种可能的实现方式中，所述方法还包括：所述第一接入点向所述站点发送发送功率调整因子，其中，所述发送功率调整因子用于所述站点确定发送所述基于触发帧的物理层协议数据单元的发送功率。
第九方面，本申请实施例还提供一种通信装置，所述通信装置应用于第一接入点AP中，所述通信装置包括：处理器，用于生成物理层协议数据单元PPDU，所述物理层协议数据单元包括媒体接入控制MAC帧，所述物理层协议数据单元包括：协调指示信息，所述协调指示信息用于指示所述MAC帧的目标接收站点是否包括通信装置，所述通信装置包括如下至少一种：第二接入点和所述第二接入点关联的站点；收发器，用于向所述通信装置发送所述物理层协议数据单元。
第十方面，本申请实施例还提供一种通信装置，所述通信装置应用于第二接入点和所述第二接入点关联的站点中，所述通信装置包括：收发器，用于接收第一接入点AP发送的物理层协议数据单元PPDU，所述物理层协议数据单元包括媒体接入控制MAC帧，所述物理层协议数据单元包括：协调指示信息，所述协调指示信息用于指示所述MAC帧的目标接收站点是否包括通信装置，所述通信装置包括：第二接入点和所述第二接入点关联的站点；处理器，用于根据所述协调指示信息确定所述MAC帧是否用于所述第一接入点与所述通信装置之间的协调。
第十一方面，本申请实施例还提供一种通信装置，所述通信装置应用于第一接入点AP中，所述通信装置包括：收发器，用于接收第一接入点AP发送的第一触发帧，以及，接收至少一个第二接入点发送的第二触发帧，其中，所述站点和所述第一接入点属于同一个基本服务集BSS，所述站点和所述至少一个第二接入点属于不同的基本服务集；所述第一触发帧，和/或，所述第二触发帧，用于指示所述站点发送基于触发帧的物理层协议数据单元PPDU，其中，所述第一触发帧包括：所述第一接入点发送所述第一触发帧的第一发送功率，和，所述第一接入点估计的所述站点发送的所述基于触发帧的物理层协议数据单元到达所述第一接入点的第一接收功率；处理器，用于确定接收所述第一触发帧和所述第二触发帧的第二接收功率；所述处理器，用于获取发送功率调整因子，其中，所述发送功率调整因子，用于调整发送所述基于触发帧的物理层协议数据单元的发送功率；所述处理器，还用于根据所述第一发送功率、所述第一接收功率、所述第二接收功率和所述发送功率调整因子，确定发送所述基于触发帧的物理层协议数据单元的发送功率。
第十二方面，本申请实施例还提供一种通信装置，所述通信装置应用于第一接入点AP中，所述通信装置包括：处理器，用于生成第一触发帧，其中，所述第一触发帧用于指示站点发送基于触发帧的物理层协议数据单元PPDU，所述第一触发帧包括：所述第一接入点 发送所述第一触发帧的第一发送功率，和，所述第一接入点估计的所述站点发送的所述基于触发帧的物理层协议数据单元到达所述第一接入点的第一接收功率；收发器，用于向所述站点发送所述第一触发帧。
在本申请的第九至第十二方面中，通信装置的组成模块还可以执行前述第五方面至第八方面以及各种可能的实现方式中所描述的步骤，详见前述对第五方面至第八方面以及各种可能的实现方式中的说明。
第十三方面，提供了一种AP，该AP包括：处理器和收发器，可选地，还包括存储器；其中，处理器和收发器、存储器通过内部连接互相通信。处理器，用于执行第二方面或第二方面任意可能的实现方式中的方法；收发器，接收处理器的控制，用于执行第二方面或第二方面任意可能的实现方式中的方法中信号的收发；存储器，用于存储指令，所述指令被处理器调用，以执行第四方面或第五方面或第六方面或第八方面任意可能的实现方式中的方法。
第十四方面，提供了一种STA，该STA包括：处理器和收发器，可选地，还包括存储器；其中，处理器和收发器、存储器通过内部连接互相通信。处理器，用于执行第三方面或第三方面任意可能的实现方式中的方法；收发器，接收处理器的控制，用于执行第三方面或第三方面任意可能的实现方式中的方法中信号的收发；存储器，用于存储指令，所述指令被处理器调用，以执行第三方面或第六方面或第七方面任意可能的实现方式中的方法。
第十五方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行上述任一方面的任意可能的实现方式中的方法的指令。
第十六方面，提供了一种计算机程序，该计算机程序包括用于执行上述任一方面的任意可能的实现方式中的方法的指令。
第十七方面，提供了一种芯片，该芯片包括处理电路和收发管脚，可选地，还包括存储器；其中，处理电路和收发管脚、存储器通过内部连接互相通信。处理电路，用于执行第一方面或第一方面任意可能的实现方式中的方法；收发管脚，接收处理电路的控制，用于执行第一方面或第一方面任意可能的实现方式中的方法中信号的收发；存储器，用于存储指令，所述指令被处理电路调用，以执行上述任一方面的任意可能的实现方式中的方法。
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图1为本申请实施例提供的一种通信系统的组成结构示意图；
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图20为本申请实施例提供的一种协作集的组成架构示意图；
图21为本申请实施例提供的一种第一接入点的组成结构示意图；
图22为本申请实施例提供的一种站点的组成结构示意图。
具体实施方式
本申请实施例提供了一种上行协调的通信方法和通信装置，用于实现接入点和站点在多个接入点的上行协调场景下进行通信。
下面结合附图，对本申请的实施例进行描述。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，这仅仅是描述本申请的实施例中对相同属性的对象在描述时所采用的区分方式。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，以便包含一系列单元的过程、方法、系统、产品或设备不必限于那些单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它单元。
本申请实施例的技术方案可以应用于一种通信系统，通信系统可以适用于多个AP协调传输场景。其中，多个AP协调传输可以指的是多个AP具有的多个天线进行协调传输，多个AP协调传输还可以指的是一个AP的多个分布式的天线进行协调传输，协调传输又可以称为协作传输。例如多个AP协调传输的一种具体实现场景可以是D-MIMO传输。其中，D-MIMO是发送端的天线为分布式天线的MIMO，通常又被称作协调MIMO，AP联合传输(Joint Transmission)，D-MIMO是AP协调传输中的一种实现方式。使用D-MIMO技术可以充分利用多个节点的联合起来的更多的天线，通过更多的空间流，提供更高的速率，或者通过信道的多样性，提供更远的传输距离。分布在不同节点的天线能够提供更好的天线隔离，信道之间更加独立，可以支撑更多的空间流。例如，D-MIMO是AP组同一个或多个STA之间的通信，其中多个AP之间可以是有线，或者无线连接。又如，D-MIMO中可以统一由一个接入控制器(acess controller，AC)来控制多个AP进行传输。
如图1所示，本申请实施例提供的一个示例性的通信系统中可以包括:AP1、AP2、STA1和STA2。AP1可以是本申请实施例中的第一接入点(access point，AP)、AP2可以是本申请实施例中的第二AP。第一AP和第二AP可以实现多AP协调传输或多AP联合传输。第一AP和第二AP包括至少一个天线，第一AP的至少一个天线与第二AP的至少一个天线的协 调传输也可以称作分布式多输入多输出(D-MIMO)传输或协调MIMO传输。例如，第一AP可以是主AP，即图1中的AP1，第二AP可以是从AP，即图1中的AP2，第一STA可以是图1中的STA1，第二STA可以是图1中的STA2。第一AP可以和第二AP进行通信，例如通过有线或者无线的方式进行通信。在本申请实施例中，以第一AP为主AP，第二AP为从AP为例进行说明，第一AP与主AP可以交替的使用，第二AP与从AP可以交替的使用。可以理解的，该通信系统中AP和STA的数量仅是示例性的。
接入点是通信系统中将站点接入到通信网络的设备。示例性的，接入点可以是支持802.11系列协议的设备或支持802.11系列协议的芯片，可以支持接入点在无线局域网中为站点提供服务，比如支持802.11be的设备或芯片，或，支持802.11be的下一代协议的设备或芯片。例如，接入点可称为无线接入网(radio access network，RAN)节点(或设备)、基站等。目前，一些接入点的举例为：传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或Wi-Fi接入点，以及其他能够在无线环境中工作的接口设备。当然，本申请实施例中接入点侧的装置还可以为安装在上述这些设备中的芯片。
站点是一种具有无线连接功能，能够向用户提供信息，语音和/或数据连通性的设备，示例性的，站点可以是支持802.11系列协议的设备或支持802.11系列协议的芯片，可以支持站点在无线局域网中通信，比如支持802.11be协议的设备或芯片，或，支持802.11be协议的下一代协议的设备或芯片。站点又可以称之为终端设备、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。目前，一些站点的举例包括：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、车载设备等。当然，本申请实施例中站点侧的装置还可以为安装在上述这些设备中的芯片。
当然，随着无线局域网应用场景的不断演进，本申请实施例中的接入点和站点多还可以应用于更多场景中，比如接入点和站点为智慧城市中的传感器节点(比如，智能水表，智能电表，智能空气检测节点)，智慧家居中的智能设备(比如智能摄像头，投影仪，显示屏，电视机，音响，电冰箱，洗衣机等)，物联网中的节点，娱乐终端(比如AR，VR等可穿戴设备)，智能办公中智能设备(比如，打印机，投影仪等)，车联网中的车联网设备，日常生活场景中的一些基础设施(比如自动售货机，商超的自助导航台，自助收银设备，自助点餐机等)。本申请实施例中对于接入点和站点的具体形式不做特殊限制，在此仅是示例性说明。可选的，本申请实施例中的接入点和站点还兼容的支持802.11ax/ac/n/g/b/a 等协议。
本申请实施例的技术方案可以应用于各种数据处理的通信系统，例如无线局域网通信(wireless local area network)系统或蜂窝系统。此外，所述通信系统还可以适用于面向未来的通信技术，都适用本申请实施例提供的技术方案。本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
图2示出了本申请实施例的另一种通信系统的结构示意图。图2示出的通信系统包括：主AP、从属AP1、从属AP2、从属AP3、从属AP4、STA1-6。本申请实施例提供的第一AP可以是前述的主AP，第二AP可以是前述的从属AP1、从属AP2、从属AP3、从属AP4。图2中的主AP可以和从属AP1、从属AP2、从属AP3、从属AP4构成D-MIMO，或者，主AP可以和从属AP1、从属AP2、从属AP3构成D-MIMO，或者，主AP可以和从属AP1、从属AP2构成D-MIMO，或者主AP可以和从属AP1构成D-MIMO。
本申请实施例提供的通信系统可以采用多种Wi-Fi标准进行通信，多种Wi-Fi标准可以包括现有的高吞吐量(high-throughput，HT)，或非常高吞吐量(very high throughput，VHT)，或高效(high efficiency，HE)的wifi标准，或下一代的Wi-Fi标准(又称为802.11ax或Wi-Fi 6)，例如，极端高吞吐量(Extremely high throughput，EHT)或者采用非常高效(very high efficiency，VHE)。在后续实施例中以下一代的Wi-Fi标准为EHT(又称为802.11be或Wi-Fi 7)为例，对本申请实施例的方案进行说明。
下面结合更多的附图，对本申请实施例的方案进一步说明。
实施例一
在本申请实施例中，请参阅图3所示，为本申请实施例提供的一种上行协调的通信方法的流程示意图，本申请实施例提供的上行协调的通信方法，主要包括如下步骤：
301、第一接入点AP生成触发帧，触发帧用于触发多个BSS中的站点STA发送基于触发帧(trigger based，TB)的物理层协议数据单元(phy protocol data unit，PPDU)，触发帧包括：多个基本服务集的标识信息和站点的标识信息。
本申请实施例中，第一接入点属于第一BSS，第一接入点在第一BSS内关联一个或多个的站点STA，第一BSS是多个BSS中的一个BSS，该第一接入点可以独立的为第一BSS内的被触发的站点配置站点的标识信息，第一接入点不需要受到其它接入点配置站点的标识信息的影响。示例性的，触发帧可以是上行协调(UL coordinated)触发帧，或者触发帧也可以是第一接入点新定义的一种类型的帧，对于触发帧的实现方式不做限定。
本申请实施例中，触发帧包括多个基本服务集的标识信息，其中，基本服务集的标识信息用于唯一的标识一个基本服务集，触发帧需要包括用于上行协调的所有基本服务集的标识信息，例如有N个基本服务集进行上行协调，则触发帧包括N个基本服务集的标识信息，N可以等于1或者2或者更大的正整数。另外，触发帧除了包括N个基本服务集的标识信息，还可以包括多个基本服务集中的每个基本服务集中被触发的站点的标识信息，例如第一接入点属于第一BSS，触发帧可触发第一BSS内的M个站点，则触发帧需要包括第一BSS中的M个站点的标识信息，第一接入点可以为第一BSS中的M个站点配置每个站点 对应的标识信息，触发帧包括的站点的标识信息用于指示被触发的站点。本申请实施例中，由于触发帧包括多个基本服务集的标识信息和每个基本服务集中包括的被触发的站点的标识信息，一个基本服务集中包括一部分被触发的站点，基于基本服务集的标识和该基本服务集中的站点的标识，各个被触发的站点可以被区分开，即使不同的基本服务集中有标识相同的站点，也不会产生混淆，因此第一接入点可以独立的配置站点的标识信息，该站点的标识信息只需要在所关联的基本服务集内是唯一的即可，不需要保证在多个基本服务集中是唯一的，从而增加了接入点配置站点的标识信息的灵活性。并且，在本申请实施例中，协调传输之前不需要提前协商公共的站点标识符集合(或站点标识符集合)，提高了传输效率，节省了信令开销。
本申请实施例中，触发帧可用于触发站点发送基于触发帧的物理层协议数据单元(英文缩写TB PPDU)，其中，物理层协议数据单元还可以称为数据分组。基于触发帧的PPDU是指一种被触发帧调度的承载上行数据的PPDU。可以理解的是，触发帧可以由多个AP中的任意一个AP生成，本申请实施例以第一AP为生成触发帧的AP为例进行说明，可以称第一AP为主AP，其他AP，例如第二AP，称为从属AP或从AP。
在本申请的一些实施例中，多个基本服务集的标识信息包括如下至少一种：多个基本服务集分别对应的基本服务集颜色(basic service set color，BSS Color)、多个基本服务集分别对应的接入点标识、多个基本服务集分别对应的基本服务集标识、多个基本服务集分别对应的接入点的媒体介入控制(medium access control，MAC)地址。
站点的标识信息包括：站点的关联标识AID。
具体的，基本服务集的标识信息具有多种实现方式，例如，基本服务集的标识信息包括如下至少一种：基本服务集颜色、基本服务集对应的接入点标识、基本服务集标识、基本服务集对应的接入点的MAC地址。可选的，基本服务集的标识信息还可以是部分的基本服务集标识，例如对基本服务集标识进行截取其中的一部分标识作为基本服务集的标识信息。又如，基本服务集的标识信息可以是基本服务集对应的接入点的部分MAC地址。后续实施例中，以基本服务集的标识信息为基本服务集颜色为例进行说明。
具体的，多个AP构成的集合可以称为一个AP组或者一个或协作集，每个AP及其所关联的站点构成一个BSS，由于一个基本服务集包括一个AP，因此可以将基本服务集的基本服务集颜色可以作为每个基本服务集的标识信息。对于多个基本服务集的标识信息采用的具体实现形式，本申请实施例不具体限定。
站点的标识信息具有多种实现方式，例如STA的AID可以作为STA的标识信息，STA的AID可以由第一AP分配给STA，或者采用STA的MAC地址作为STA的标识信息，对于STA的标识信息采用的具体实现形式，本申请实施例并不具体限定。
在本申请的一些实施例中，触发帧包括：第一字段和第一字段对应的至少一个第一用户信息字段，其中，第一字段包括：多个基本服务集中的至少一个基本服务集的标识信息；一个第一用户信息字段包括：至少一个基本服务集中的一个被触发的站点的标识信息；至少一个第一用户信息字段在触发帧中位于第一字段之后。
接下来针对触发帧的帧结构进行说明，该触发帧中需要使用相应的字段来携带多个基本服务集的标识信息和站点的标识信息。其中，触发帧包括的字段也可以称为域，或者称 为单元，此处仅作说明。
如图4所示，为本申请实施例提供的一种触发帧的帧结构示意图。触发帧包括：第一字段和第一字段对应的至少一个第一用户信息(user info)字段，图4中以触发帧包括多个第一用户信息字段为例进行说明，第一字段是特指触发帧中的一个或多个字段，第一用户信息字段是触发帧中的一个或多个的用户信息字段。进一步的，第一字段包括：多个基本服务集中的至少一个基本服务集的标识信息，例如，用于上行协调的基本服务集为T个，第一字段可以包括(T-1)个基本服务集中的标识信息。一个第一用户信息字段包括：一个基本服务集中的一个被触发的站点的标识信息，例如，一个基本服务集中有S个被触发的站点，则需要S个第一用户信息字段来指示S个站点的标识信息。本申请实施例中通过触发帧中包括的第一字段和第一字段对应的至少一个第一用户信息字段，可以指示多个基本服务集的标识信息和被触发的站点的标识信息，从而使得接收到触发帧的站点通过解析第一字段和第一用户信息字段，获取到触发帧中包括的基本服务集的标识信息和站点的标识信息，以便准确地确定该站点是否未被触发的站点，若确定自身为被该触发帧触发(或调度)的站点，则该站点发送TB PPDU。
在本申请的一些实施例中，如图4所示，第一字段对应的至少一个第一用户信息字段在触发帧中位于第一字段之后，即在触发帧中第一字段先被站点解析，站点只有在解析出第一字段之后，才能根据该第一字段的指示继续从触发帧解析出第一字段对应的至少一个第一用户信息字段。
举例说明如下，触发帧中可以包括第一字段和第一字段对应的多个第一用户信息字段，第一字段可用于承载多个基本服务集中的至少一个基本服务集的标识信息，该第一字段还对应有至少一个的第一用户信息字段，触发帧触发的所有站点中每一个站点可以使用一个第一用户信息字段，第一接入点可以在一个第一用户信息字段中携带被触发的一个站点的标识。
进一步的，触发帧中包括第一字段，该第一字段有多种实现方式。在本申请的一些实施例中，第一字段承载于触发帧中的第二用户信息字段；或者，第一字段承载于触发帧中的公共信息字段；或者，第一字段承载于触发帧中的协调字段。
一个示例中，例如第一字段可以承载于触发帧中的第二用户信息字段，第二用户信息字段是触发帧中的一个或多个的用户信息字段，第二用户信息字段和前述的第一用户信息字段属于不同的用户信息字段，第二用户信息字段和前述的第一用户信息字段是基于所携带的信息内容的不同而采用的不用命名方式。第一字段承载于第二用户信息字段，对于第一字段在第二用户信息字段中的位置，此处不做限定。例如，后续实施例中可以将第二用户信息字段称为特殊的user info字段，或者第二用户信息字段可以称为取值为特殊值的AID12子字段的user info字段。
另一个示例中，触发帧中包括公共信息(common info)字段，第一字段可以承载于触发帧中的公共信息字段，例如第一字段可以为在公共信息字段中的最后一个字段，或者第一字段为在公共信息字段中的中间位置，对于第一字段在第二用户信息字段中的位置，此处不做限定。
又一个示例中，触发帧中包括协调(coordinated)字段，第一字段可以承载于触发帧 中的协调字段，例如协调字段可以是触发帧中新增的一个字段，例如协调字段可以部署在触发帧中的公共信息字段中的最后一个位置，或者协调字段部署在触发帧中的公共信息字段之后。进一步的，协调字段部署在触发帧中的公共信息字段之后，且协调字段与公共信息字段相邻。对于协调字段的实现方式不做限定，对于第一字段在协调字段中的部署位置不做限定。
在本申请的一些实施例中，第一字段在触发帧中具有多种具体的实现方式，接下来进行详细的举例说明。可选的，如图5所示，至少一个基本服务集不包括第一接入点对应的第一基本服务集，且第一字段在所述触发帧中位于第一基本服务集对应的第一用户信息字段之后。
例如，若第一字段承载于触发帧中的第二用户信息字段，第一接入点对应的基本服务集是第一基本服务集，第一字段包括的是多个基本服务集中的至少一个基本服务集的标识信息，至少一个基本服务集不包括第一基本服务集，即第一基本服务集的标识信息不携带在第一字段中。例如第一基本服务集可以称为传输基本服务集(transmitting BSS)，传输基本服务集也可以称为主BSS，传输基本服务集是指发起协作的AP对应的BSS，或者建立协作组的AP对应的BSS。第一基本服务集可以通过MAC帧头中的发送地址，或者物理层协议数据单元中的信令(signal，SIG)字段中的基本服务集颜色(BSS color)来指示。在第一基本服务集的标识信息不使用第一字段指示的情况下，如图5所示，第一字段在触发帧中位于第一基本服务集对应的第一用户信息字段之后，例如第一基本服务集对应有P个第一用户信息字段，则第一字段可以位于该P个第一用户信息字段之后，从而站点在解析完第一基本服务集对应的P个第一用户信息字段之后，就可以在P个第一用户信息字段之后确定出第一字段，例如第一字段和这P个第一用户信息字段相邻，P的取值可以大于或等于1，此处不做限定。本申请实施例中第一接入点对应的第一基本服务集不通过第一字段进行指示，从而节省了触发帧的指示开销。
不限定的是，在本申请的另一些实施例中，第一接入点对应的第一基本服务集也可以通过第一字段进行指示，从而站点可以通过解析触发帧中的第一字段确定出第一接入点对应的第一基本服务集，以及通过解析触发帧中的第一字段对应的至少一个第一用户信息字段确定出第一基本服务集中被触发的站点。
在本申请的一些实施例中，触发帧包括多个的第一字段，和多个的第一字段分别对应的至少一个第一用户信息字段。
具体的，触发帧中的一个第一字段的长度是固定的，若一个第一字段无法指示用于上行协调的所有基本服务集的标识信息，则在触发帧中需要包括多个的第一字段，通过多个的第一字段可以指示用于上行协调的所有基本服务集的标识信息，从而触发帧可以指示用于上行协调的所有基本服务集的标识信息。例如，如图6所示，触发帧中包括2个第一字段，用于上行协调的基本服务集有6个，则一个第一字段可以指示用于上行协调的4个基本服务集的标识信息，另一个第一字段可以指示用于上行协调的2个基本服务集的标识信息。另外，以触发帧包括2个第一字段为例，则触发帧中还包括2个第一字段分别对应的至少一个第一用户信息字段，例如一个第一字段对应有T个第一用户信息字段，则触发帧中包括2T个第一用户信息字段。
举例说明如下，第一字段可以是触发帧中的第二用户信息字段，由于第二用户信息字段长度是固定的，所以当一个第二用户信息字段不足以承载所有协作BSS的指示信息的时候，还可以在一个触发帧中携带多个特殊AID的第二用户信息字段。在一个携带特殊AID的第二用户信息字段以及该第二用户信息字段所指示的第一用户信息字段字段之后，再携带另一个特殊AID的第二用户信息字段，该携带另一个特殊AID的第二用户信息字段用于指示在携带另一个特殊AID的第二用户信息字段之后的一批第一用户信息字段。本申请实施例中通过多个的第二用户信息字段，触发帧可以指示用于上行协调的所有基本服务集的标识信息。
在本申请的一些实施例中，如图7所示，若第一字段承载于触发帧中的公共信息字段，公共信息字段包括：触发类型(Trigger Type)子字段和基于触发类型的公共信息(Trigger Dependent Common Info)子字段；触发类型子字段，用于指示触发帧的触发类型；基于触发类型的公共信息子字段包括：第一字段。
具体的，触发帧中包括公共信息字段，第一字段可以通过该公共信息字段来承载，例如公共信息字段包括：触发类型子字段和基于触发类型的公共信息子字段，触发类型子字段可以用于指示触发帧类型，例如触发类型子字段可以指示触发帧为上行协调(UL coordinated)触发帧。第一字段可以承载于基于触发类型的公共信息子字段，例如第一字段可以是基于触发类型的公共信息子字段的一个组成部分，或者第一字段可以是基于触发类型的公共信息子字段，此处不做限定。本申请实施例中触发帧中的公共信息字段可以用于承载第一字段，从而通过触发帧中的公共信息字段可以指示用于上行协调的所有基本服务集的标识信息。
在本申请的一些实施例中，若第一字段为触发帧中的协调字段，触发帧还包括：公共信息字段，公共信息字段，用于指示触发帧的触发类型；协调字段在触发帧中位于公共信息字段之后。
其中，第一字段可以是触发帧中的协调字段，该协调字段可以是触发帧中增加的一个字段，第一字段可以承载于协调字段，例如第一字段可以是协调字段的一个组成部分，或者第一字段可以是协调字段，此处不做限定。如图8所示，以第一字段为协调字段为例，该协调字段可以在触发帧中位于公共信息字段之后，例如协调字段与公共信息字段相邻。本申请实施例中触发帧中的协调字段可以用于承载第一字段，从而通过触发帧中的协调字段可以指示用于上行协调的所有基本服务集的标识信息。
前述对第一字段在触发帧中的承载方式进行了说明，接下来对第一字段的组成结构进行举例说明。
在本申请的一些实施例中，如图9所示，第一字段包括：至少一个的基本服务集标识子字段；其中，一个基本服务集标识子字段，用于指示至少一个基本服务集中的一个基本服务集的标识信息。
具体的，在第一字段中可以包括一个基本服务集标识子字段，该一个基本服务集标识子字段可以指示一个基本服务集的标识信息。又如，在第一字段中可以包括两个基本服务集标识子字段，一个基本服务集标识子字段可以指示一个基本服务集的标识信息，另一个基本服务集标识子字段可以指示另一个基本服务集的标识信息。本申请实施例中通过基本 服务集标识子字段可以指示至少一个基本服务集中的一个基本服务集的标识信息，从而使得站点可以通过解析该基本服务集标识子字段，获取到基本服务集的标识信息。
进一步的，在本申请的一些实施例中，第一字段包括：至少一个的基本服务集标识子字段，至少一个的基本服务集标识子字段中还可以设置一个特殊的值，例如设置为第一值，第一值用于指示第一字段中不包括取值为第一值的基本服务集标识子字段之后的基本服务集标识子字段，也就是说，取值为第一值的基本服务集标识子字段为第一字段中的最后一个基本服务集标识子字段。站点接收到触发帧之后，可以解析第一字段中的至少一个的基本服务集标识子字段，若站点从第一字段中解析出携带第一值的基本服务集标识子字段，站点可以确定携带第一值的基本服务集标识子字段所指示的基本服务集中不包含被触发的站点，且第一字段在携带第一值的基本服务集标识子字段之后不包括基本服务集标识子字段。本申请实施例中通过设置携带第一值的基本服务集标识子字段，可以指示出第一字段所指示的所有基本服务集的标识信息。
在本申请的一些实施例中，该第一值的取值方式可以有多种，例如第一值为全0或者全1。即一个基本服务集标识子字段携带的值为全0或者全1时，可以确定该基本服务集标识子字段是最后一个基本服务集标识子字段，且第一字段中不包括取值为第一值的基本服务集标识子字段之后的基本服务集标识子字段。不限定的是，本申请实施例中第一值的取值不局限于上述举例。
在本申请的一些实施例中，如图10所示，第一字段包括：至少一个的用户信息个数(number of user info for BSS color)子字段；
一个用户信息个数子字段，用于指示至少一个基本服务集中的一个基本服务集对应的第一用户信息字段的个数。
其中，触发帧还可以指示用于上行协调的基本服务集对应的第一用户信息字段的个数，可以理解的是，一个基本服务集对应的第一用户信息字段的个数等于该基本服务集中被触发的站点个数。例如，第一字段中可以包括一个用户信息个数子字段，从而指示一个基本服务集对应的第一用户信息字段的个数。第一字段中可以包括两个用户信息个数子字段，从而指示两个基本服务集分别对应的第一用户信息字段的个数。因此，本申请实施例中第一字段指示了多少个基本服务集的标识信息，就需要通过多少个用户信息个数子字段来指示相应的基本服务集对应的第一用户信息字段的个数。本申请实施例中站点可以解析第一字段中的用户信息个数子字段，可以获取到基本服务集对应的第一用户信息字段的个数，从而获取到基本服务集中被触发的站点个数。
例如，第一字段包括：至少一个的基本服务集标识子字段和至少一个的用户信息个数子字段；
一个基本服务集标识子字段，用于指示至少一个基本服务集中的一个基本服务集的标识信息。一个用户信息个数子字段，用于指示至少一个基本服务集中的一个基本服务集对应的第一用户信息字段的个数。
具体的，第一字段中可以包括基本服务集标识子字段和用户信息个数子字段，使用这两个字段可以指示基本服务集的标识信息以及该基本服务集对应的第一用户信息字段的个数。
进一步的，在本申请的一些实施例中，第一字段包括：至少一个的用户信息个数子字段，至少一个的用户信息个数子字段中的一个用户信息个数子字段为第二值，第二值用于指示第一字段中不包括取值为第二值的用户信息个数子字段之后的用户信息个数子字段。
具体的，站点接收到触发帧之后，可以解析第一字段中的至少一个的用户信息个数子字段，若站点从第一字段中解析出携带第二值的用户信息个数子字段，站点可以确定携带第二值的用户信息个数子字段是至少一个基本服务集中的最后一个基本服务集，该最后一个基本服务集中不包含被触发的站点，且第一字段在携带第二值的用户信息个数子字段之后不包括用户信息个数子字段，此时站点可以不再解析第一字段。本申请实施例中通过设置携带第二值的用户信息个数子字段，可以指示出第一字段所指示的所有基本服务集对应的用户信息个数子字段。
在本申请的一些实施例中，该第二值的取值方式可以有多种，例如第二值为全0或者全1。即一个用户信息个数子字段携带的值为全0或者全1时，站点可以确定携带第二值的用户信息个数子字段所对应的基本服务集是至少一个基本服务集中的最后一个基本服务集，且该最后一个基本服务集中不包含被触发的站点，且第一字段在携带第二值的用户信息个数子字段之后不包括用户信息个数子字段。不限定的是，本申请实施例中第二值的取值不局限于上述举例。
在本申请的一些实施例中，如图11所示，若第一字段承载于触发帧中的第二用户信息字段，第一字段包括：关联标识子字段；关联标识子字段，用于指示第一字段的类型；关联标识子字段的值为特殊的AID。
具体的，若第一字段承载于触发帧中的第二用户信息字段，该第一字段还需要指示该第一字段的类型，例如在第一字段包括关联标识子字段，关联标识子字段的值为特殊的AID，例如特殊的AID可以是2044，2008或者2047，对于关联标识子字段的具体取值不做限定。后续实施例中以特殊的AID为2044进行示例说明，本申请实施例中通过关联标识子字段可以指示第一字段的类型，从而站点在接收到触发帧之后，可以解析该触发帧中的第一字段包括的关联标识子字段，确定出第一字段的类型。然后站点从第一字段中获取到第一字段所指示的基本服务集的标识信息。
在本申请的一些实施例中，如图12所示，第一字段包括：基本服务集个数子字段；基本服务集个数(Number of BSS)子字段，用于指示至少一个基本服务集的个数。
具体的，第一字段中可以使用基本服务集个数子字段指示至少一个基本服务集的个数，站点在接收到触发帧之后，通过解析触发帧中的第一字段携带的基本服务集个数子字段确定出第一字段所指示的基本服务集的个数，从而站点可以按照基本服务集个数子字段指示的基本服务集的个数从第一字段中获取到这些基本服务集的标识信息。本申请实施例中通过设置基本服务集个数子字段，可以指示出第一字段所指示的所有基本服务集的标识信息。
需要说明的是，前述图9至图12对第一字段的组成结构进行了详细说明，不限定的是，在本申请的不同应用场景下，第一字段所包括的组成结构是不相同的，并且第一字段所包括的各种组成结构还可以相互结合，例如第一字段可以包括：关联标识子字段、基本服务集个数子字段、基本服务集标识子字段和用户信息个数子字段。又如，第一字段可以包括：关联标识子字段、基本服务集标识子字段和用户信息个数子字段。又如，第一字段可以包 括：关联标识子字段和基本服务集标识子字段。又如，第一字段可以包括：基本服务集个数子字段、基本服务集标识子字段和用户信息个数子字段。对于第一字段的具体组成结构不做限定，可以结合具体应用场景来确定。
302、第一接入点向站点发送触发帧。
在本申请实施例中，第一接入点在生成触发帧之后，第一接入点可以向需要被触发的站点发送触发帧，从而使得站点可以接收到触发帧。
311、站点STA接收第一接入点AP发送的触发帧，触发帧用于触发站点发送基于触发帧的物理层协议数据单元PPDU，站点属于多个基本服务集中的一个基本服务集，触发帧包括：多个基本服务集的标识信息和站点的标识信息。
在本申请实施例中，站点可以解析接收到的触发帧，从该触发帧中获取到该站点所在的基本服务集的标识信息，并从触发帧中获取到被触发的站点的标识信息。
需要说明的是，对于本申请实施例中站点接收到的触发帧所包括的第一字段和第一用户信息字段的说明，详见前述步骤301中的举例，此处不再赘述。
312、站点确定需要发送基于触发帧的物理层协议数据单元PPDU。
在本申请实施例中，站点接收到触发帧之后，若该站点从触发帧中获取到了该站点的标识信息，也就是说确定该站点属于被触发的站点，则该站点可以发送上行数据，例如发送TB PPDU。
接下来以具体的应用场景进行详细说明。
举例说明如下，目前的触发帧中携带多个用户信息(user info)字段，每一个user info字段中携带AID12子字段，用于承载一个STA的AID，一个user info字段中的其它子字段用于承载对STA的其它调度信息。例如，AID＝2008～2044，以及AID＝2047～4094都为预留数值，其它的AID数值已经使用。本申请实施例中可以在某一个user info字段中使用一个特殊的AID数值来指示对该user info字段进行了重新定义。本实施例对该特殊数值的具体取值不作限定。例如，特殊的AID的取值可以选取2044，2008或者2047，本申请后续实施例中以AID＝2044为例来进行介绍。
本申请实施例提供的user info字段可以包括40比特以及基于触发帧的用户信息字段(Trigger dependent user info)。其中，基本触发帧(basic trigger)中的Trigger dependent user info包括8比特，本实施例中的协调上行触发帧用于进行上行数据调度，可以使用基本触发帧类型。因此本实施例中特殊的user info字段可以使用48比特的长度。不限定的是，本申请实施例中采用的特殊的user info字段也扩展到其它类型的触发帧，例如可以采用user info字段为40个比特。
如图13所示，为本申请实施例提供一种触发帧的组成结构示意图。用户信息列表(user info list)中的第一个user info字段为特殊的user info字段，该特殊的user info字段即为前述的第一字段，特殊的user info字段包括AID12字段，另外特殊的user info字段还可以包括其他的字段，接下来进行详细说明。
一种实现方式中，特殊的user info字段包括：关联标识子字段、基本服务集个数子字段、基本服务集标识子字段和用户信息个数子字段。不限定的是，特殊的user info字段中还可以包括保留(reserved)子字段。例如，关联标识子字段为AID12字段，基本服 务集个数子字段为图13所示的Number of BSS子字段。Number of BSS子字段用于指示本触发帧中携带多少个BSS的信息，例如，基本服务集标识子字段有n个，分别为BSS color1、BSS color 2、…、BSS color n，例如BSS color n携带第n个BSS的BSS color，用户信息个数子字段有n个，分别为number of user info for BSS color 1、number of user info for BSS color 2、…、number of user info for BSS color n，例如，number of user info for BSS color n用于指示第n个BSS中的STA info的数目。图13中以n等于2为例，BSS1和BSS2用于上行协调，BSS color 1指示的是BSS1的标识信息，number of user info for BSS color 1指示的是BSS1中被调度的站点对应的用户信息字段的个数，BSS color2指示的是BSS2的标识信息，number of user info for BSS color 2指示的是BSS2中被调度的站点对应的用户信息字段的个数。
另一种实现方式中，特殊的user info字段包括：关联标识子字段、基本服务集标识子字段和用户信息个数子字段。不限定的是，特殊的user info字段中还可以包括保留(reserved)子字段。即特殊的user info字段不携带Number of BSS字段，直接携带n组BSS color和number of user info for BSS color n的子字段，并且在最后一个number of user info for BSS color n中指示的值为全0，这样后面的比特就不用于指示BSS color或number of user info for BSS color字段。例如，BSS1和BSS2用于上行协调，BB3对应的number of user info for BSS color3中指示全0，这样后面的比特就不用于指示BSS color或number of user info for BSS color字段。
另一种实现方式中，特殊的user info字段包括：关联标识子字段、基本服务集标识子字段和用户信息个数子字段。不限定的是，特殊的user info字段中还可以包括保留(reserved)子字段。即特殊的user info字段不携带Number of BSS字段，直接携带n组BSS color和number of user info for BSS color n的子字段，并且在最后一个BSS color字段使用特殊(Specific)的数值，例如全0或全1，这样后面的比特就不用于指示BSS color或number of user info for BSS color字段。例如，BSS1和BSS2用于上行协调，BSS color3为特殊的BSS color，特殊的BSS color指示的值为全0，这样后面的比特就不用于指示BSS color或number of user info for BSS color字段。
可以理解的是，这里指示每一个BSS的方式除了BSS颜色(color)之外，还可能有AP ID、部分(partial)BSSID或partial AP MAC地址等。这里的AP ID是指协调的AP集合中，通过协商为每个AP分配的一个唯一的标识符。partial BSSID或者partial AP MAC地址可以是通过对BSSID或MAC地址进行截取获得，也可以通过特定的映射方式获得。为了介绍方便，后续实施例中使用BSS color为例进行说明。
图14所示，是本实施例的另外一种实现方式，与图13的方式类似，其区别的地方在于，Transmitting BSS(或者主BSS)、BBS2和BBS3用于上行协调，Transmitting BSS不需要使用特殊的user info字段来指示，特殊的user info字段用于指示BSS2和BSS3，Transmitting BSS中的user info字段放置在最前面，不需要特殊的user info字段指示，Transmitting BSS(或者主BSS)可以通过MAC帧头中的发送地址，或者物理层中的SIG字段中的BSS color来获得。在Transmitting BSS中的user info字段之后放置携带特殊AID的user info字段，其帧格式与图13介绍的方法中格式相同，区别仅在于不需要携带 Transmitting BSS相关的user info信息，这里就不做赘述。
需要说明的是，前述的Transmitting BSS是指的发起协调的AP对应的BSS，或者建立协调组的AP对应的BSS，或者是，发送触发帧的BSS。
另外需要说明的是，由于user info字段长度是固定的，所以当一个user info字段不足以承载所有协调BSS的指示信息的时候，还可以在一个触发帧中携带多个特定AID的user info字段。在一个携带特殊AID12的user info以及其所指示的user info字段之后再携带另一个特殊AID12的user info，该另一个特殊AID12的user info用于指示在其后的一个或多个的user info字段。
前述实施例中通过引入一个AID12为特殊值的user info字段，用于指示有多少个BSS参与协调，以及对应哪些user info字段。通过这种方法，使得每个协调集合中的BSS中的STA的分配可以是独立的，不用共享AID空间。所以增加了可以支持的STA数目，以及AID分配的灵活性。
在本申请的另一些实施例中，如图15所示，是本实施例的另一种实现方式，使用一个AID12设置为特殊数值的user info字段来指示一个BSS中的user info字段。Transmitting BSS(或者主BSS)、BBS2和BBS3用于上行协调，Transmitting BSS不需要使用特殊的user info字段来指示，一个特殊的user info字段用于指示BSS2，另一个特殊的user info字段用于指示BSS3，Transmitting BSS中的user info排在最前面，随后使用一个特殊AID12的user info字段指示某一个BSS中的user info，该BSS的指示承载在特殊AID12的user info字段中。一个触发帧中可以携带多个特殊的user info字段以及对应的user info字段。两个携带特殊user info字段之前的user info字段归属于前一个特殊user info字段中指示的BSS。
另外，还可以在每一个特殊的user info字段中增加一个number of user info字段，用于指示其后面对应的多少个user info字段是归属于该BSS。
不限定的是，Transmitting BSS相关的user info字段也可以使用一个特殊的user info字段来指示，当使用一个特殊的user info字段的时候，Transmitting BSS相关的user info字段没有必须排在用户信息列表的最前面，字段的配置方式更加灵活。
前述实施例中通过每一个AID12设置为特殊值的user info字段指示一个BSS相关的user info字段。该方案不受user info字段长度的限制，可以支持任意多的BSS参与协调。
在本申请的一些实施例中，如图16所示，为上行协调引入一种触发帧类型，例如UL coordinated Trigger帧。由于引入了一种触发帧类型，所以对应的帧结构中的字段可以重新设计，在前述实施例中讨论过需要增加的信令指示可以增加到Common info字段中，例如图16所示，携带在Trigger Dependent Common Info字段中。所携带信息与图13所示的实施例的不同之处在于不需要携带特殊的AID。
图17是另外一种实施方式，与图16实施方式的区别在于，所增加的字段不是承载在Trigger Dependent Common Info字段中，而是在Common info字段之后增加一个Coordinated字段用于承载特殊的user info字段，所携带信息与图13所示的实施例的不同之处在于不需要携带特殊的AID。
本申请实施例中可以引入一种触发帧的类型来承载多个BSS的user info字段的信息，本申请实施例不用修改user info字段的定义，也不用引入特殊的AID12。可以在同一个触发帧中对多个BSS的站点进行上行调度，并且不需要共享AID空间，不需要将每个BSS中的AID空间减小。另外还减少了AP端信令交互和AID分配复杂度。
通过前述实施例的举例说明可知，第一接入点生成的触发帧可以包括：多个基本服务集的标识信息和站点的标识信息，该触发帧可以触发多个BSS进行上行协调，且对于第一接入点而言，可以在触发帧携带一个BSS中被触发的站点的标识，因此第一接入点可以独立配置该第一接入点关联的站点的标识信息，不需要保证在多个BSS中站点的标识是唯一的，增加了第一接入点配置被触发的站点的标识信息的灵活性，实现接入点和站点在多个接入点的上行协调场景下进行通信。
实施例二
在多个AP的协调机制中，涉及到一个AP发送的帧，需要其它协调BSS中的AP或者STA接收的情况。这个帧是协调相关的，可以统一称作协调帧。协调可能涉及到协调过程中的不同流程，比如协调AP之间的信令协商、AP与协调BSS内的STA的信道测量、AP向协调BSS内的STA发送控制信令或AP向协调BSS内的STA发送协调数据等环节。这里对于帧的具体类型和包含的内容不作限定。协调帧由一个AP发送，由协调BSS内的站点接收，或者由本BSS和协调BSS内的站点共同接收。例如，第一AP和第二AP属于同一个协作集(或者称为协调集合)，该协作集中可以包括多个BSS，第一AP所在的BSS为本BSS，第二AP所在的BSS为协调BSS。
在承载协调帧的PPDU的SIG字段中通常会有BSS color字段，例如极高吞吐率(Extremely High Throughput，EHT)PPDU的共同信令(universal-signal，U-SIG)字段。由于协调的多个BSS的BSS color是不同的，而BSS color字段只能放置一个BSS color，一种做法就是设置transmitting BSS的BSS color。但是这种方式的一个问题是，需要所有协调的AP实现告知所有参与协调的STA，本协调集中transmitting BSS对应的BSS color。当所有协调的BSS都可能作为transmitting BSS的时候，就需要告知所有协调BSS对应的BSS color。这样一来所有协调的STA当接收到一个帧的BSS color字段与transmitting BSS匹配的BSS color匹配时，将继续进行解析。即使协调集合中的一个AP发送一个非协调的帧，协调集合中的STA也需要继续进行解释，直到根据MAC帧中的其它信息判定出该帧与协调没有关系，浪费了站点的处理资源。
为了解决上述问题，接下来介绍本申请实施例提供的另一种上行协调的通信方法，如图18所示，主要包括如下过程：
1801、第一接入点AP生成物理层协议数据单元PPDU，物理层协议数据单元包括媒体接入控制MAC帧，物理层协议数据单元包括：协调(coordination)指示信息，协调指示信息用于指示MAC帧的目标接收站点是否包括通信装置，通信装置包括如下至少一种：第二接入点和第二接入点关联的站点，第一接入点和第二接入点属于同一个协作集(或称为协调集合)。
第一接入点属于第一BSS，第二接入点属于第二BSS，第一BSS与第二BSS为协调BSS。则第一接入点和第二接入点为属于同一个协调集合(或协作集)。第一BSS还包括一个或多 个站点，第二BSS中也包括一个或多个站点。在本申请实施例中，第一接入点AP发送PPDU，因此第一BSS为本BSS(或传输BSS)，第二BSS为与第一BSS协调的BSS。
在本申请实施例中，第一接入点和第二接入点共同进行协作传输，则第一接入点和第二接入点属于同一个协作集。第一接入点可以是主接入点，第二接入点可以是从属接入点。第一接入点生成的物理层协议数据单元中携带协调指示信息，通过该协调指示信息指示PPDU承载的MAC帧的目标接收站点是否包括通信装置，其中，MAC帧的目标接收站点是指需要接收PPDU承载的MAC帧的站点。通信装置有多种实现方式，例如通信装置可以包括如下至少一种：第二接入点和第二接入点关联的站点。
在本申请的一些实施例中，物理层协议数据单元包括：协调指示信息，协调指示信息用于指示PPDU的目标接收站点是否包括通信装置，其中，PPDU的目标接收站点是指需要接收PPDU的站点。通信装置包括如下至少一种：第二接入点和第二接入点关联的站点。
在本申请的一些实施例中，物理层协议数据单元包括：协调指示信息，协调指示信息用于指示通信装置是否继续解析PPDU的载荷(payload)，通信装置包括如下至少一种：第二接入点和第二接入点关联的站点。例如协调指示信息占用1个比特，可以携带第一值或第二值，若协调指示信息携带第一值，则指示通信装置继续解析PPDU的载荷，若协调指示信息携带第二值，则指示通信装置可以不继续解析PPDU的载荷。
进一步的，协调指示信息还可以用于指示第一接入点关联的站点是否继续解析PPDU的载荷。例如协调指示信息占用2个比特，可以携带第一值或第二值或第三值，若协调指示信息携带第一值，则指示通信装置继续解析PPDU的载荷且第一接入点关联的站点不继续解析PPDU的载荷，若协调指示信息携带第二值，则指示通信装置可以不继续解析PPDU的载荷，且第一接入点关联的站点继续解析PPDU的载荷，若协调指示信息携带第三值，则指示通信装置继续解析PPDU的载荷，且第一接入点关联的站点继续解析PPDU的载荷。
1802、第一接入点向通信装置发送物理层协议数据单元。
在本申请实施例中，第一接入点生成上述的物理层协议数据单元之后，第一接入点向通信装置发送物理层协议数据单元，从而使得接收到PPDU的通信装置可以从PPDU中获取到协调指示信息，通信装置通过解析该协调指示信息，确定是否继续解析MAC帧。
在本申请的一些实施例中，物理层协议数据单元包括：信令(SIG)字段；
协调指示信息承载于信令字段中。
具体的，在本申请的前述实施例中，通过在SIG字段中增加协调指示信息，使得协调的站点能够尽早区分该MAC帧是否与协调相关，进而尽早进行功率节省或者空间复用。
在本申请的一些实施例中，若协调指示信息承载第一值，协调指示信息用于指示MAC帧的目标接收站点包括通信装置；或，
若协调指示信息承载第二值，协调指示信息用于指示MAC帧的目标接收站点不包括通信装置。
例如，协调指示信息可以占用1个比特。例如，当第一值为0时，协调指示信息用于指示MAC帧的目标接收站点包括通信装置，当第二值为1时，协调指示信息用于指示MAC帧的目标接收站点不包括通信装置；或者，当第一值为1时，协调指示信息用于指示MAC帧的目标接收站点包括通信装置，当第二值为0时，协调指示信息用于指示MAC帧的目标 接收站点不包括通信装置。具体可以根据应用场景来确定协调指示信息所承载的具体取值。
1811、通信装置接收第一接入点AP发送的物理层协议数据单元PPDU，物理层协议数据单元包括媒体接入控制MAC帧，物理层协议数据单元包括：协调指示信息，协调指示信息用于指示MAC帧的目标接收站点是否包括通信装置，通信装置包括：第二接入点和第二接入点关联的站点，第一接入点和第二接入点属于同一个协作集。
1812、通信装置根据协调指示信息确定是否解析MAC帧。
在本实施例中，PPDU承载的MAC帧有多种实现方式，例如该MAC帧可以是协调帧。举例说明如下，在承载协调帧的PPDU的SIG字段中增加一个coordination指示信息，用于指示该帧是否为协调相关的。当coordination指示该帧为协调相关的时候，协调集合内的站点才需要继续解析。当协调集合内的AP发送一个非协调相关的，仅针对本BSS内站点的帧的时候，承载该帧的PPDU的SIG中的coordination指示该帧不是协调相关，协调集合内的站点根据coordination指示就不需要继续解析。该coordination指示信息可以承载在SIG中的一个独立的子字段，也可以是复用其它子字段进行指示。当该方法应用于EHT标准中时，该SIG字段通常叫做EHT-U-SIG，EHT-SIG或EHT-SIG-A字段。该coordination字段可以为1比特，当设置为0时指示该PPDU所承载内容不是协调相关的，当设置为1时指示该PPDU所承载的内容是协调相关的。反之亦可。
具体地，该协调帧可以为UL coordinated Trigger帧，承载该UL coordinated Trigger帧的PPDU的SIG中的cooridination指示信息指示该帧为协调相关的时候，就意味着该UL coordinated Trigger帧用于触发多个其它协调BSS中的站点进行上行传输的。协调BSS集中的STA需要对MAC帧的内容进行解析。反之，cooridination指示信息指示该帧为协调不相关，该PPDU不承载UL coordinated Trigger帧。协调BSS集中的STA不需要对MAC帧的内容进行解析。
又一个示例中，第一AP发送一个PPDU，PPDU的SIG字段中包括coordination指示信息。若PPDU是协作传输的，也就是说，该PPDU的目标接收站点包括第二AP关联的STA2，那么第一AP可将该指示信息设置为第一值，指示该PPDU是协调相关的，该PPDU的目标接收站点包括STA2，携带STA2的数据，那么STA2在接收到该PPDU后，确定该PPDU是协调相关的，STA2需要解析该PPDU，获取PPDU中的数据。若该PPDU不是协作传输的，也就是说，该PPDU的目标接收站点不包括第二AP关联的STA2，不携带STA2的数据，那么第一AP可将该指示信息设置为第二值，指示该PPDU不是协调相关的，该PPDU的目标接收站点不包括STA2，那么STA2在接收到该PPDU后，确定该PPDU不是协调相关的，STA2不解析该PPDU。
通过前述对实施例二的举例说明可知，通过在PPDU增加协调指示信息，使得协作的站点能够尽早区分该PPDU承载的MAC帧是否与协作相关，从而站点可以尽早的进行功率节省或者空间复用。
实施例三
目前在单个接入点向站点发送一个触发帧时，站点可以根据一个触发帧携带的功率参数计算该站点进行上行传输的发送功率，目前还没有适用于多个接入点的上行协调场景下的上行传输的发送功率的方案，若仍使用单个接入点的非协调场景下的发送功率计算方案， 会导致上行传输的发送功率计算不准确的问题，因为在多个接入点的上行协调场景下，多个接入点都会发送触发帧，从而站点和多个接入点之间的信道会产生干扰。
为解决上述技术问题，在多个接入点的上行协调场景下，本申请实施例还提供发送基于触发帧的物理层协议数据单元的发送功率的方案。
接下来介绍本申请实施例提供的另一种上行协调的通信方法，如图19所示，主要包括如下过程：
1901、第一接入点AP生成第一触发帧。
其中，第一触发帧用于指示站点发送基于触发帧的物理层协议数据单元PPDU，第一触发帧包括：第一接入点发送第一触发帧的第一发送功率，和，第一接入点估计的站点发送的基于触发帧的物理层协议数据单元到达第一接入点的第一接收功率。
其中，站点和第一接入点关联，第一接入点可以生成第一触发帧，第一触发帧用于指示站点发送基于触发帧的物理层协议数据单元PPDU，第一触发帧包括：第一发送功率和第一接收功率，其中，第一发送功率是第一接入点发送第一触发帧的发送功率，例如，发送功率的单位为毫瓦mW或者瓦W，第一发送功率可以表示为P0。又如，发送功率的单位为分贝毫瓦dBm，第一发送功率可以表示为
Figure PCTCN2021079962-appb-000004
第一接收功率是第一接入点估计的站点发送的基于触发帧的物理层协议数据单元到达第一接入点的接收功率。例如，接收功率的单位为毫瓦mW或者瓦W，第一接收功率可以表示为Ptar。又如，接收功率的单位为分贝毫瓦dBm，第一接收功率可以表示为Target RSSI。
在本申请实施例中，第一接入点和至少一个第二接入点可以属于同一个协作集，第二接入点可以生成第二触发帧，第二触发帧用于指示站点发送基于触发帧的物理层协议数据单元PPDU，第二触发帧包括：第二接入点发送第二触发帧的发送功率，和，第二接入点估计的站点发送的基于触发帧的物理层协议数据单元到达第二接入点的接收功率。
1902、第一接入点向站点发送第一触发帧。
在本申请实施例中，第一接入点可以向站点发送第一触发帧。
不限定的是，至少一个第二接入点和第一接入点属于同一个协作集，第二接入点也可以向站点发送第二触发帧。
在本申请的一些实施例中，第一接入点AP执行的上行协调的通信方法，还可以包括如下步骤：
第一接入点向站点发送第一媒体接入控制MAC帧，其中，第一媒体接入控制帧包括：第一接入点发送第一媒体接入控制帧的第二发送功率。
其中，第一MAC帧可以是携带发送功率的帧，例如携带发送功率的帧可以是信标帧、信道测量帧和协调帧，对于第一MAC帧的实现方式，此处不做限定。第一接入点向站点发送第一媒体接入控制MAC帧，从而站点接收到该第一MAC帧，站点可以根据该第一MAC帧确定发送功率调整因子。对于发送功率调整因子的说明，详见后续实施例中的描述。
在本申请实施例中，第一接入点和至少一个第二接入点可以属于同一个协作集，第二接入点可以向站点发送第二MAC帧，其中，第二MAC包括：第二接入点发送第二MAC帧的第三发送功率。
在本申请的一些实施例中，第一接入点AP执行的上行协调的通信方法，还可以包括如 下步骤：
第一接入点向站点发送发送功率调整因子，其中，发送功率调整因子用于站点确定发送基于触发帧的物理层协议数据单元的发送功率。
其中，第一接入点可以确定发送功率调整因子，然后第一接入点向站点发送发送功率调整因子，站点接收到该发送功率调整因子之后，站点可以确定出发送基于触发帧的物理层协议数据单元的发送功率，详见后续实施例中的描述。
在本申请实施例中，第一接入点和至少一个第二接入点可以属于同一个协作集，第二接入点可以向站点发送发送功率调整因子，站点接收到该发送功率调整因子之后，站点可以确定出发送基于触发帧的物理层协议数据单元的发送功率，详见后续实施例中的描述。
1911、站点STA接收第一接入点AP发送的第一触发帧，以及，接收至少一个第二接入点发送的第二触发帧，其中，站点和第一接入点属于同一个基本服务集BSS，站点和至少一个第二接入点属于不同的基本服务集。
其中，第一触发帧，和/或第二触发帧，用于指示站点发送基于触发帧的物理层协议数据单元PPDU，其中，第一触发帧包括：第一接入点发送第一触发帧的第一发送功率，和，第一接入点估计的站点发送的基于触发帧的物理层协议数据单元到达第一接入点的第一接收功率。
在本申请实施例中，站点和第一接入点处于同一个基本服务集中，第一接入点和至少一个第二接入点属于同一个协作集，站点除了接收到第一触发帧，还可以接收到至少一个第二接入点发送的第二触发帧。
1912、站点确定接收第一触发帧和第二触发帧的第二接收功率。
其中，第一接入点向站点发送第一触发帧，至少一个第二接入点向站点发送第二触发帧，因此站点会同时接收到多个触发帧(例如包括第一触发帧和第二触发帧)，站点测量接收多个触发帧时接收到的功率为第二接收功率。
1913、站点获取发送功率调整因子，其中，发送功率调整因子，用于调整发送基于触发帧的物理层协议数据单元的发送功率。
在本申请实施例中，由于站点可以同时接收到多个触发帧，站点需要考虑多个接入点对该站点发送基于触发帧的物理层协议数据单元的发送功率的影响，本申请实施例中站点获取发送功率调整因子，其中，站点通过发送功率调整因子可以调整发送基于触发帧的物理层协议数据单元的发送功率，对于调整发送基于触发帧的物理层协议数据单元的发送功率的方式，有多种实现方式，详见后续实施例中的举例说明。
在本申请的一些实施例中，发送功率调整因子是预先规定的数值；或者，
发送功率调整因子是站点从第一接入点获取到的。
其中，预先规定可以是通信协议的预先规定，则站点可以根据预先配置的通信协议获取到发送功率调整因子。又如，第一接入点可以确定发送功率调整因子，然后第一接入点向站点发送发送功率调整因子，站点接收到该发送功率调整因子之后，站点可以确定出发送基于触发帧的物理层协议数据单元的发送功率。又如，第二接入点可以向站点发送发送功率调整因子，站点接收到该发送功率调整因子之后，站点可以确定出发送基于触发帧的物理层协议数据单元的发送功率。
在本申请的一些实施例中，站点获取发送功率调整因子，包括：
站点接收第一接入点发送的第一媒体接入控制MAC帧，其中，第一媒体接入控制帧包括：第一接入点发送第一媒体接入控制帧的第二发送功率；
站点确定接收第一媒体接入控制帧的第三接收功率；
站点根据第二发送功率、第三接收功率和第二接收功率获取发送功率调整因子。
其中，第一MAC帧可以是携带发送功率的帧，例如携带发送功率的帧可以是信标帧、信道测量帧和协调帧，对于第一MAC帧的实现方式，此处不做限定。第一接入点向站点发送第一MAC帧，从而站点接收到该第一MAC帧，站点获取到第一接入点发送第一媒体接入控制帧的第二发送功率，站点还可以测量接收第一MAC帧的第三接收功率，则站点通过第二发送功率和第三接收功率可以确定站点和第一接入点之间的第一信道衰减信息，第一信道衰减信息也可以称为第一路损信息。站点最后可以根据第二发送功率、第三接收功率和第二接收功率获取发送功率调整因子，例如站点根据第二发送功率和第三接收功率确定第一信道衰减信息，再根据第一信道衰减信息以及第二接收功率获取站点和第二接入点之间的第二信道衰减信息，再根据第一信道衰减信息和第二信道衰减信息确定发送功率调整因子，该发送功率调整因子可以是第一信道衰减信息和第二信道衰减信息的比值。不限定的是，站点根据第二发送功率、第三接收功率和第二接收功率获取发送功率调整因子，还可以有其它的实现方式，例如站点根据第二发送功率、第三接收功率和第二接收功率确定接收功率的变化比例，再基于该变化比例设置相应的发送功率调整因子，对于发送功率调整因子的具体实现方式不做限定。
在本申请的一些实施例中，站点获取发送功率调整因子，包括：
站点接收第一接入点发送的第一媒体接入控制帧，和，接收第二接入点发送的第二媒体接入控制帧，其中，第一媒体接入控制帧包括：第一接入点发送第一媒体接入控制帧的第二发送功率，第二媒体接入控制帧包括：第二接入点发送第二媒体接入控制帧的第三发送功率；
站点确定接收第一媒体接入控制帧的第三接收功率，以及，确定接收第二媒体接入控制帧的第四接收功率；
站点根据第二发送功率、第三发送功率、第三接收功率和第四接收功率，获取发送功率调整因子。
其中，第一MAC帧可以是携带发送功率的帧，例如携带发送功率的帧可以是信标帧、信道测量帧和协调帧，对于第一MAC帧的实现方式，此处不做限定。第一接入点向站点发送第一MAC帧，从而站点接收到该第一MAC帧，站点获取到第一接入点发送第一媒体接入控制帧的第二发送功率，站点还可以测量接收第一MAC帧的第三接收功率，则站点通过第二发送功率和第三接收功率可以确定站点和第一接入点之间的第一信道衰减信息，第一信道衰减信息也可以称为第一路损信息。同样的，第二接入点也可以发送第二触发帧，同样的，站点也可以确定站点和第二接入点之间的第二信道衰减信息，第二信道衰减信息也可以称为第二路损信息。需要说明的是，第一MAC帧和第二MAC帧的发送可以是分时进行的。站点根据第二发送功率、第三发送功率、第三接收功率和第四接收功率，获取发送功率调整因子，例如站点根据第二发送功率和第三接收功率确定第一信道衰减信息，再根据第三 发送功率以及第四接收功率获取站点和第二接入点之间的第二信道衰减信息，再根据第一信道衰减信息和第二信道衰减信息确定发送功率调整因子，该发送功率调整因子可以是第一信道衰减信息和第二信道衰减信息的比值。不限定的是，站点根据第二发送功率、第三发送功率、第三接收功率和第四接收功率获取发送功率调整因子，还可以有其它的实现方式，例如站点根据第二发送功率和第三发送功率确定发送功率的变化比例，以及站点根据第三而棘手功率和第四接收功率确定接收功率的变化比例，再基于该变化比例设置相应的发送功率调整因子，对于发送功率调整因子的具体实现方式不做限定。
在本申请的一些实施例中，站点获取发送功率调整因子，包括：
站点接收第二接入点发送的第二媒体接入控制帧，其中，第二媒体接入控制帧包括：第二接入点发送第二媒体接入控制帧的第三发送功率；
站点确定接收第二媒体接入控制帧的第四接收功率；
站点根据第三发送功率、第四接收功率和第二接收功率获取发送功率调整因子。
其中，第二MAC帧可以是携带发送功率的帧，例如携带发送功率的帧可以是信标帧、信道测量帧和协调帧，对于第二MAC帧的实现方式，此处不做限定。第二接入点向站点发送第二MAC帧，从而站点接收到该第二MAC帧，站点获取到第二接入点发送第一媒体接入控制帧的第二发送功率，站点还可以测量接收第二MAC帧的第四接收功率，则站点通过第三发送功率、第四接收功率可以确定站点和第二接入点之间的第二信道衰减信息，第二信道衰减信息也可以称为第二路损信息。站点最后可以根据第三发送功率、第四接收功率和第二接收功率获取发送功率调整因子，例如站点根据第三发送功率和第四接收功率确定第二信道衰减信息，再根据第二信道衰减信息以及第二接收功率获取站点和第一接入点之间的第一信道衰减信息，再根据第一信道衰减信息和第二信道衰减信息确定发送功率调整因子，该发送功率调整因子可以是第一信道衰减信息和第二信道衰减信息的比值。不限定的是，站点根据第三发送功率、第四接收功率和第二接收功率获取发送功率调整因子，还可以有其它的实现方式，例如站点根据第三发送功率、第四接收功率和第二接收功率确定接收功率的变化比例，再基于该变化比例设置相应的发送功率调整因子，对于发送功率调整因子的具体实现方式不做限定。
需要说明的是，前述的步骤1913和步骤1912的执行顺序有多种，例如可以先执行步骤1912，然后执行步骤1913，或者先执行步骤1913，再执行步骤1912，或者同时执行步骤1912和步骤1913，此处不做限定。
1914、站点根据第一发送功率、第一接收功率、第二接收功率和发送功率调整因子，确定发送基于触发帧的物理层协议数据单元的发送功率。
在本申请实施例中，站点获取到发送功率调整因子之后，站点可以使用第一发送功率、第一接收功率、第二接收功率和发送功率调整因子，共同确定出发送基于触发帧的物理层协议数据单元的发送功率。本申请实施例中由于站点可以接收多个接入点发送的触发帧，因此站点需要获取到发送功率调整因子，并且使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议 数据单元的发送功率的准确性，对于发送基于触发帧的物理层协议数据单元的发送功率的计算方式有多种，接下来进行详细的举例说明。
在本申请的一些实施例中，站点根据第一发送功率、第一接收功率、第二接收功率和发送功率调整因子，确定发送基于触发帧的物理层协议数据单元的发送功率，包括：
站点通过如下方式确定发送基于触发帧的物理层协议数据单元的发送功率：
Pt＝Ptar×P0×k/Pr；
其中，Pt表示发送基于触发帧的物理层协议数据单元的发送功率，Ptar表示第一接收功率，P0表示第一发送功率，Pr表示第二接收功率，k表示发送功率调整因子，×为相乘符号，/为相除符号，+为相加符号。
其中，站点可以使用上述公式计算出发送基于触发帧的物理层协议数据单元的发送功率，站点可以使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议数据单元的发送功率的准确性。
在本申请的一些实施例中，站点根据第一发送功率、第一接收功率、第二接收功率和发送功率调整因子，确定发送基于触发帧的物理层协议数据单元的发送功率，包括：
若第一发送功率与第二接入点发送第二触发帧的发送功率相同，站点通过如下方式确定发送基于触发帧的物理层协议数据单元的发送功率：
Pt＝Ptar×P0×(1+a)/Pr；
其中，Pt表示发送基于触发帧的物理层协议数据单元的发送功率，Ptar表示第一接收功率，P0表示第一发送功率，Pr表示第二接收功率，a表示发送功率调整因子，×为相乘符号，/为相除符号，+为相加符号。
其中，站点可以使用上述公式计算出发送基于触发帧的物理层协议数据单元的发送功率，站点可以使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议数据单元的发送功率的准确性。
在本申请的一些实施例中，站点根据第一发送功率、第一接收功率、第二接收功率和发送功率调整因子，确定发送基于触发帧的物理层协议数据单元的发送功率，包括：
若第一发送功率与第二接入点发送第二触发帧的发送功率不相同，站点通过如下方式确定发送基于触发帧的物理层协议数据单元的发送功率：
Pt＝Ptar×P0×(1+a×b)/Pr；
其中，Pt表示发送基于触发帧的物理层协议数据单元的发送功率，Ptar表示第一接收功率，P0表示第一发送功率，Pr表示第二接收功率，a表示发送功率调整因子，b表示第一发送功率和第二接入点发送第二触发帧的发送功率的比值，×为相乘符号，/为相除符号，+为相加符号。
其中，第一发送功率与第二接入点发送第二触发帧的发送功率不相同时，站点还需要获取第一发送功率和第二接入点发送第二触发帧的发送功率的比值，即站点需要获取到上 述的b参数，具体的，该b参数可以是第一接入点通知给站点的，或者是站点根据第一发送功率和第二接入点发送第二触发帧的发送功率计算出来的，此处不做限定。站点可以使用上述公式计算出发送基于触发帧的物理层协议数据单元的发送功率，站点可以使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议数据单元的发送功率的准确性。
在本申请的一些实施例中，站点根据第一发送功率、第一接收功率、第二接收功率和发送功率调整因子，确定发送基于触发帧的物理层协议数据单元的发送功率，包括：
站点通过如下方式确定发送基于触发帧的物理层协议数据单元的发送功率：
Figure PCTCN2021079962-appb-000005
其中，
Figure PCTCN2021079962-appb-000006
表示发送基于触发帧的物理层协议数据单元的发送功率，Target RSSI表示第一接收功率，
Figure PCTCN2021079962-appb-000007
表示第一发送功率，DL RSSI表示第二接收功率，m表示发送功率调整因子，+为相加符号，–为相减符号。
其中，站点可以使用上述公式计算出发送基于触发帧的物理层协议数据单元的发送功率，站点可以使用该发送功率调整因子对发送基于触发帧的物理层协议数据单元的发送功率进行调整，使得调整后的发送基于触发帧的物理层协议数据单元的发送功率能够在基于触发帧的物理层协议数据单元到达第一接入点时的接收功率为前述的第一接收功率，提高在多个AP的上行协调场景下计算基于触发帧的物理层协议数据单元的发送功率的准确性。
接下来以详细的场景对发送基于触发帧的物理层协议数据单元的发送功率的计算过程进行说明。如图20所示，为本申请实施例提供的一种协作集的组成架构示意图，接下来以一个STA11关联AP1，AP1和AP2处于同一个协作集进行举例说明。
在图20中，当AP1和AP2同时发送包含相同内容的触发帧的时候，STA11收到的信号是AP1和AP2发送信号的叠加，站点STA11无法区分出哪部分来自AP1，所以无法使用计算出TB PPDU的发送功率。在本实施例中将提供STA11计算TB PPDU发送功率的方法，使得其发送的信号在AP11处的接收功率强度等于AP1预计的STA11发送的TB PPDU到达AP1时的接收功率。
具体的，首先本申请实施例中涉及的参数作出如下说明：
P0：AP1发送触发帧的时候采用的发送功率；
Ptar：预计STA11发送的TB PPDU到达AP1时的接收功率；
Pr：触发帧在STA11处的接收信号；
Pt：STA11发送TB PPDU时所采用的发送功率；
k1：AP1与STA11之间的信号衰减系数，或者叫路损系数。例如，上下行信道是对等的，即衰减系数相同。
k2：AP2与STA11之间的信号衰减系数，或者叫路损系数。例如，上下行信道是对等的，即衰减系数相同。
a＝k2/k1。
在该实施例中发送功率的单位为毫瓦mW或者瓦W，首先假设AP2与AP1采用相同的发送功 率。两个AP共同发送一个相同内容的触发帧，触发帧中只有一个AP发送功率设置参数。后续实施例中介绍两者发送功率不同时的Pt的计算方法。
由于STA11接收到了AP1和AP2信号的叠加，所以Pr＝(k1+k2)×P0，即
Pr＝k1×(1+a)×P0             (0)
变换一下公式，可得，
k1＝Pr/(1+a)/P0                 (1)
STA11发送TB PPDU的时候预计在AP1端的接收功率为Ptar，根据衰减系数k1可以得到，
Pt＝Ptar/k1                     (2)
将公式(1)代入公式(2)可得，
Pt＝Ptar×P0×(1+a)/Pr           (3)
在公式(3)中用到了一个参数a，即衰减系数k2与k1的比值，a可以通过多种方式获得，例如，AP在发送信标帧中可以携带发送功率，STA11分别通过接收AP1和AP2的信标帧，从而获得k1和k2的数值，进而获得a的数值。
又如，STA11通过接收AP1信标帧获得k1的数值，或者通过接收AP2信标帧获得k2的数值，然后通过测量AP1和AP2发送的协调上行触发帧获得k1+k2的数值，进而获得a的数值。
又如，AP1在发送协调上行触发帧之前，发送一个携带发送功率的帧。该帧可以是专门用来信道测量的帧，也可以是在上行协调协商过程中的一个帧。STA11根据这个帧测量获得k1的数值。然后通过测量AP1和AP2发送的协调上行触发帧获得k1+k2的数值，进而获得a的数值。
又如，AP1和AP2在发送协调上行触发帧之前，分别在不同时间发送一个携带发送功率的帧。STA11根据这两个帧测量获得k1和k2的数值。进而获得a的数值。
需要说明的是，接入点单独发送一个帧用来测量k1和k2，与通过信标帧测量获得k1和k2的方案相比具有如下优点，信标帧周期性发送，典型周期为0.1秒，也可能会更长。这样发送协调上行触发帧与信标帧之间的时间间隔可能比较大，从而导致信道和衰减系数发送较大的变化，这样计算出的发送功率就不准确。在协调上行触发帧之前发送一个测量帧，可以保证测量帧与协调上行触发帧之间的时间间隔很短，信道衰减系数变化不大，这样计算出的发送功率就更准确。
假设AP2使用P2功率发送协调上行触发帧，P2＝b×P0。其中P2或者参数b需要携带在协调上行触发帧中，或者通过实现协商的方式告知STA11。本实施例中对于STA11获取P2或者b的数值的方式不作限定。
Pr＝k1×P0+k2×P2＝(k1+k2×b)×P0    (4)
令k3＝k2×b，则，
Pr＝(k1+k3)×P0                    (5)
令a1＝k3/k1，则，
Pt＝Ptar×P0×(1+a1)/Pr           (6)
假设协调中有多于两个AP，且每个AP发送协调上行触发帧时都使用发送功率P0。例如，APn与STA11之间的信道衰减系数为kn。
Pr＝(k1+k2+…kn)×P0              (7)
令a2＝(k2+…kn)/k1，则，
k1＝Pr/(1+a2)/P0                 (8)
进而得到如下公式：
Pt＝Ptar×P0×(1+a2)/Pr           (9)
需要说明的是，以上方法介绍的时候衰减系数采用的是自然数，在通信领域计算衰减的时候还可以采用对数的方式，详见后续实施例的举例说明。
通过前述的举例说明可知，本申请实施例中STA可以在多个AP的上行协调机制中计算TB PPDU的发送功率，且能够准确出计算TB PPDU的发送功率，解决了在多个AP的上行协调机制中无法计算TB PPDU的发送功率的问题。
在本申请的另一些实施例中，还可以通过如下方式计算TB PPDU的发送功率，由公式(0)可知，Pr＝k1×(1+a)×P0，其中，a是一个变化的值，例如AP之间位置和STA的位置都会对a的取值产生影响。但是由于STA11到关联的接入点AP1的距离会比到AP2的距离短，对应的，在发送强度相等的情况下，收到的AP1的信号会强于AP2的信号。因此a是一个0到1之间的小数。通过对于典型场景的测量和统计，可以设定一个固定的参数a，多个站点都采用该固定参数进行功率计算。
令1+a＝k，则可以得到
Pr＝k1×k×P0       (10)
进而获得，
Pt＝k×P0×Ptar/Pr    (11)
其中，参数a或者k可以采用固定的形式，即在通信协议标准中进行规定，所有的协调站点都采用该数值进行功率计算。该参数a或者k还可以由AP决定，AP根据协调集合中的AP的位置等信息计算出一个a或者k值，然后发送给协调的站点，协调站点采用该数值进行功率计算。
在本申请实施例中，站点采用一个固定或者半固定的参数来计算上行协调机制中的TB PPDU的发送功率，从而可以简化TB PPDU的发送功率的计算过程。
在本申请的另一些实施例中，发送功率的单位为分贝毫瓦。其中，分贝毫瓦(decibel relative to one milliwatt，dBm)为一个指代功率的绝对值，而不同于分贝(decibel， dB)是一个相对值，分贝是量度两个相同单位之数量 比例的单位。
在图20中，当AP1和AP2同时发送包含相同内容的触发帧的时候，STA11收到的信号是AP1和AP2发送信号的叠加，站点STA11无法区分出哪部分信号来自AP1，所以无法计算出TB PPDU的发送功率。在本实施例中将提供STA11计算TB PPDU发送功率的方法，使得其发送的信号在AP11处的接收功率强度等于AP1预计的STA11发送的TB PPDU到达AP1时的接收功率。
本申请实施例中将所涉及到的参数作出如下说明：
Figure PCTCN2021079962-appb-000008
AP1发送触发帧的时候采用的发送功率；
Target RSSI：预计STA11发送的TB PPDU到达AP1时的接收功率；
DL RSSI：触发帧在STA11处的接收信号；
Figure PCTCN2021079962-appb-000009
STA11发送TB PPDU时所采用的发送功率；
PL DL1：AP1与STA11之间的信号衰减系数，或者叫路损系数。例如，上下行信道是对等的，即衰减系数相同。
PL DL2：AP2与STA11之间的信号衰减系数，或者叫路损系数。例如，上下行信道是对等的，即衰减系数相同。
首先假设AP2与AP1采用相同的发送功率。这是因为两个AP共同发送一个相同内容的触发帧，触发帧中只有一个AP发送功率设置参数。后面会介绍两者发送功率不同时的
Figure PCTCN2021079962-appb-000010
的计算方法。
由于STA11接收到了AP1和AP2信号的叠加，即，
Figure PCTCN2021079962-appb-000011
其中，公式中
Figure PCTCN2021079962-appb-000012
表示10的
Figure PCTCN2021079962-appb-000013
次幂。
经过变化之后得到，
Figure PCTCN2021079962-appb-000014
令m＝10*1og 10(1+10^((PL DL1-PL DL2)/10))，则，
Figure PCTCN2021079962-appb-000015
STA11发送TB PPDU之后AP1的接收功率只经过路损PL DL1，这里假设上下行的路损是相同的。由此可得，
Figure PCTCN2021079962-appb-000016
将公式(e3)代入(e4)可得，
Figure PCTCN2021079962-appb-000017
在公式(e3)中用到了一个参数m，可以通过多种方式获得：
一种实现方式中，AP在发送信标帧中是可以携带发送功率的，STA11分别通过接收AP1和AP2的信标帧，从而获得PL DL1和PL DL2的数值，进而获得m的数值。
另一种实现方式中，STA11通过接收AP1信标帧获得PL DL1的数值，或者通过接收AP2信标帧获得PL DL2的数值，然后通过测量AP1和AP2发送的协调上行触发帧获得信道叠加后的接收功率，进而获得m的数值。
另一种实现方式中，AP1在发送协调上行触发帧之前，发送一个携带发送功率的帧。该帧可以是专门用来信道测量的帧，也可以是在上行协作协商过程中的一个帧。STA11根据这个帧测量获得PL DL1的数值。然后通过测量AP1和AP2发送的协调上行触发帧获得信道叠加后的接收功率，进而获得m的数值。
另一种实现方式中，AP1和AP2在发送协调上行触发帧之前，分别在不同时间发送一个携带发送功率的帧。STA11根据这两个帧测量获得PL DL1和PL DL2的数值。进而获得m的数值；
需要说明的是，在上述多种实现方式中，发送一个帧用来测量m，与通过信标帧测量获得m数值的优势在于，信标帧周期性发送，典型周期为0.1秒，也可能会更长。这样发送协 调上行触发帧与信标帧之间的时间间隔可能比较大，从而导致信道和衰减系数发送较大的变化，这样计算出的发送功率就不准确。在协调上行触发帧之前发送一个测量帧可以保证测量帧与协调上行触发帧之间的时间间隔很短，信道衰减系数变化不大，这样计算出的发送功率就更准确。
假设AP2使用
Figure PCTCN2021079962-appb-000018
功率发送协调上行触发帧。其中，
Figure PCTCN2021079962-appb-000019
需要携带在协调上行触发帧中，或者通过实现协商的方式知会STA11等方式实现。本实施例对于STA11获得
Figure PCTCN2021079962-appb-000020
的数值的方式不作限定。
Figure PCTCN2021079962-appb-000021
经过变化之后得到，
Figure PCTCN2021079962-appb-000022
令
Figure PCTCN2021079962-appb-000023
则，
Figure PCTCN2021079962-appb-000024
将公式(e8)代入(e4)可得，
Figure PCTCN2021079962-appb-000025
假设协作中有多于两个AP，且每个AP发送协调上行触发帧时均使用发送功率
Figure PCTCN2021079962-appb-000026
APn与STA11之间的信道衰减系数为PL DLn。
Figure PCTCN2021079962-appb-000027
经过变化得到，
Figure PCTCN2021079962-appb-000028
令m2＝10*1og 10(1+10^((PL DL1-PL DL2)/10)+…+10^((PL DL1-PL DLn)/10))，则，
Figure PCTCN2021079962-appb-000029
将公式(e12)代入(e4)可得，
Figure PCTCN2021079962-appb-000030
在该实施例中发送功率的单位为分贝毫瓦dBm。
在本申请的另一些实施例中，由公式(e3)可知，
Figure PCTCN2021079962-appb-000031
其中，m是一个变化的值，AP之间位置，STA的位置都会对m的取值产生影响。但是由于通常STA11到关联的接入点AP1的距离会比到AP2的距离短，对应的在发送强度相等的情况下，收到的AP1的信号会强于AP2的信号。因此m的取值范围会是0dB到3dB之间。通过对于典型场景的测量和统计可以设定一个固定的参数m，所有的站点都采用该固定参数进行功率计算。
该参数m可以采用固定的形式，即在通信协议中进行规定，所有的协作站点都采用该数值进行功率计算。该参数m还可以由AP决定，AP根据协作集合中的AP的位置等信息计算出一个m值，然后发送给协作的站点，协作站点采用该数值进行功率计算。
通过前述实施例三的举例说明可知，本申请实施例中STA通过测量自身与关联AP以及协作AP的路损信息，进而对TB PPDU的发送功率进行补偿，使得其到达关联AP的功率强度等于AP1预计的STA11发送的TB PPDU到达AP1时的接收功率。减少了由于多个STA上行到达功率强度不一致带来的性能损失。
图21示出了本申请实施例的通信装置2100的示意性框图。在一个实施例中，图21所示的装置2100可以对应于上述方法实施例中的通信装置，可以具有方法中的第一接入点或者STA的任意功能，可选地，本申请实施例的装置2100可以是第一接入点，也可以是第一接入点内的芯片，本申请实施例的装置2100可以是站点，也可以是站点内的芯片。该装置2100可以包括处理模块2110和收发模块2120，可选的，该装置2100还可以包括存储模块2130。
一个实施例中，通信装置2100为第一接入点或第一接入点内的芯片。
该处理模块2110，可以用于生成前述方法实施例中发送的信令或数据信息，例如，生成步骤301中发送的触发帧；还可以用于根据所述触发帧，控制收发模块2120，向STA发送触发帧。例如，可以执行步骤302。处理模块2110，还可以用于生成步骤1801中的PPDU。处理模块2110，还可以用于生成步骤1901中的第一触发帧。
该收发模块2120，收发模块用于支持第一接入点AP，站点，以及与其他节点之间的通信。可以理解的，收发模块可以包括接收模块和发送模块。其中，发送模块可以用于执行前述方法实施例中的步骤302、步骤1802和步骤1902。
又一个实施例中，通信装置2100为站点或站点内的芯片；
该处理模块2110，可以解析和处理前述方法实施例中发送的信令或数据信息，例如，通知信息。例如，可以执行步骤306。处理模块2110还可以用于生成前述实施例中发送的信令，例如触发帧。处理模块2110，还可以确定执行前述实施例中的步骤312、步骤1812、步骤1912至1914。
该收发模块2120，收发模块用于支持站点AP与第一AP，以及其他节点之间的通信。可以理解的，收发模块可以包括接收模块和发送模块。其中，接收模块可以用于执行前述方法实施例中的步骤311、步骤1811和步骤1911。
应理解，根据本申请实施例的装置2100可对应于前述的实施例的各方法中的第一接入点或者STA，并且装置2100中的各个模块的上述和其它管理操作和/或功能分别为了实现前述各个方法的相应步骤，为了简洁，在此不再赘述。
可以替换的，装置2100也可配置成通用处理系统，例如通称为芯片，该处理模块2110可以包括：提供处理功能的一个或多个处理器；所述收发模块2120例如可以是输入/输出接口、管脚或电路等，输入/输出接口可用于负责此芯片系统与外界的信息交互，例如，此输入/输出接口可将第一接入点AP生成的传输控制信息输出给此芯片外的其他模块进行处理。该处理模块可执行存储模块中存储的计算机执行指令以实现上述方法实施例中第一接入点的功能。在一个示例中，装置2100中可选的包括的存储模块2130可以为芯片内的存 储单元，如寄存器、缓存等，所述存储模块2130还可以是位于芯片外部的存储单元，如只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)等。
在另一个示例中，图22示出了本申请实施例的另一种通信装置2200的示意性框图。本申请实施例的装置2200可以是上述方法实施例中的第一接入点或者STA，装置2200可以用于执行上述方法实施例中的第一接入点或者STA的部分或全部功能。该装置2200可以包括：处理器2210，基带电路2230，射频电路2240以及天线2250，可选的，该装置2200还可以包括存储器2220。装置2200的各个组件通过总线耦合在一起，其中总线系统除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统。
处理器2210可用于实现对第一接入点或者STA的控制，用于执行上述实施例中由第一接入点或者STA进行的处理，可以执行上述方法实施例中涉及第一接入点或者STA的处理过程和/或用于本申请所描述的技术的其他过程，还可以运行操作系统，负责管理总线以及可以执行存储在存储器中的程序或指令。
基带电路2230、射频电路2240以及天线2250可以用于支持第一接入点和上述实施例中涉及的第二接入点或站点之间收发信息，以支持第一接入点与其他节点之间进行无线通信。例如，第一接入点发送的传输控制信息可由处理器2210进行处理，经由基带电路2230进行按协议封装，编码等基带处理，进一步由射频电路2240进行模拟转换、滤波、放大和上变频等射频处理后，经由天线2250发送给第二接入点AP。可以理解的，基带电路2230、射频电路2240以及天线2250还可以用于支持第一接入点与其他网络实体进行通信。
存储器2220可以用于存储第一接入点或者STA的程序代码和数据，存储器2220可以是图21中的存储模块2130。图22中存储器2220被示为与处理器2210分离，然而，本领域技术人员很容易明白，存储器2220或其任意部分可位于装置2200之外。举例来说，存储器2220可以包括传输线、和/或与无线节点分离开的计算机制品，这些介质均可以由处理器2210通过总线接口来访问。可替换地，存储器2220或其任意部分可以集成到处理器2210中，例如，可以是高速缓存和/或通用寄存器。
一个示例中，图21中的收发模块2120可以包括基带电路2230，射频电路2240，天线2250；处理模块2110可以是处理器2210；另一个示例中，图21中的收发模块2120可以仅包括图22中的天线，处理模块2110可以既包括处理器2210，还包括射频电路2240和基带电路2230；又一个示例中，图21中处理模块2110可以包括处理器2210，和，基带电路2230；收发模块2120可以包括射频电路2240和天线2250。
可以理解的是，图22仅仅示出了第一接入点或者STA的简化设计。例如，在实际应用中，第一接入点或者STA可以包含任意数量的发射器，接收器，处理器，存储器等，而所有可以实现本申请实施例的第一接入点或者STA都在本申请实施例的保护范围之内。
本申请实施例还提供一种计算机存储介质，该计算机可读存储介质中存储有指令，所述指令可以由处理电路上的一个或多个处理器执行。当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
本申请实施例还提供了一种芯片系统，该芯片系统包括处理器，用于支持分布式单元、 集中式单元、以及第一接入点以实现上述实施例中所涉及的功能，例如生成或处理上述方法中所涉及的数据和/或信息。
在一种可能的设计中，所述芯片系统还可以包括存储器，所述存储器，用于保存分布式单元、集中式单元以及第一接入点必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。
本申请实施例还提供了一种处理器，用于与存储器耦合，用于执行上述各实施例中任一实施例中涉及第一接入点AP的方法和功能。
本申请实施例还提供了一种处理器，用于与存储器耦合，用于执行上述各实施例中任一实施例中涉及STA的方法和功能。
本申请实施例还提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述各实施例中任一实施例中涉及第一接入点AP的方法和功能。
本申请实施例还提供了一种包含指令的计算机程序产品，其在计算机上运行时，使得计算机执行上述各实施例中任一实施例中涉及STA的方法和功能。
本申请实施例还提供一种无线通信系统，该系统包括上述实施例中涉及的第一接入点和至少一个第二接入点、至少一个STA。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk)等。

Claims (56)

  1. 一种通信装置，其特征在于，所述通信装置应用于站点中，所述通信装置包括：
    收发器，用于接收第一接入点AP发送的触发帧，所述触发帧用于触发所述站点发送基于触发帧的物理层协议数据单元PPDU，所述站点属于多个基本服务集中的一个基本服务集，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；
    处理器，用于确定需要发送所述基于触发帧的物理层协议数据单元PPDU。
  2. 一种通信装置，其特征在于，所述通信装置应用于第一接入点AP中，所述通信装置包括：
    处理器，用于生成触发帧，所述触发帧用于触发多个基本服务集BSS中的站点STA发送基于触发帧的物理层协议数据单元PPDU，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；
    收发器，用于向所述站点发送所述触发帧。
  3. 根据权利要求1或2所述的通信装置，其特征在于，所述多个基本服务集的标识信息包括如下至少一种：所述多个基本服务集分别对应的基本服务集颜色、所述多个基本服务集分别对应的接入点标识、所述多个基本服务集分别对应的基本服务集标识、所述多个基本服务集分别对应的接入点的媒体介入控制MAC地址；
    所述站点的标识信息包括：所述站点的关联标识AID。
  4. 根据权利要求1至3中任一项所述的通信装置，其特征在于，所述触发帧包括：第一字段和所述第一字段对应的至少一个第一用户信息字段，其中，
    所述第一字段包括：所述多个基本服务集中的至少一个基本服务集的标识信息；
    一个第一用户信息字段包括：所述至少一个基本服务集中的一个被触发的站点的标识信息；
    所述至少一个第一用户信息字段在所述触发帧中位于所述第一字段之后。
  5. 根据权利要求4所述的通信装置，其特征在于，所述第一字段承载于所述触发帧中的第二用户信息字段；或者，
    所述第一字段承载于所述触发帧中的公共信息字段；或者，
    所述第一字段承载于所述触发帧中的协调字段。
  6. 根据权利要求5所述的通信装置，其特征在于，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述至少一个基本服务集不包括所述第一接入点对应的第一基本服务集，且所述第一字段在所述触发帧中位于所述第一基本服务集对应的第一用户信息字段之后。
  7. 根据权利要求4至6中任一项所述的通信装置，其特征在于，所述触发帧包括多个的所述第一字段，和多个的所述第一字段分别对应的至少一个第一用户信息字段。
  8. 根据权利要求5所述的通信装置，其特征在于，若所述第一字段承载于所述触发帧中的公共信息字段，所述公共信息字段包括：触发类型子字段和基于触发类型的公共信息子字段；
    所述触发类型子字段，用于指示所述触发帧的触发类型；
    所述基于触发类型的公共信息子字段包括：所述第一字段。
  9. 根据权利要求5所述的通信装置，其特征在于，若所述第一字段为所述触发帧中的协调字段，所述触发帧还包括：公共信息字段，
    所述公共信息字段，用于指示所述触发帧的触发类型；
    所述协调字段在所述触发帧中位于所述公共信息字段之后。
  10. 根据权利要求4至9中任一项所述的通信装置，其特征在于，所述第一字段包括：至少一个的基本服务集标识子字段；
    一个基本服务集标识子字段，用于指示所述至少一个基本服务集中的一个基本服务集的标识信息。
  11. 根据权利要求10所述的通信装置，其特征在于，所述至少一个的基本服务集标识子字段中的一个基本服务集标识子字段为第一值，所述第一值用于指示所述第一字段中不包括取值为所述第一值的基本服务集标识子字段之后的基本服务集标识子字段。
  12. 根据权利要求11所述的通信装置，其特征在于，所述第一值为全0或者全1。
  13. 根据权利要求4至12中任一项所述的通信装置，其特征在于，所述第一字段包括：至少一个的用户信息个数子字段；
    一个用户信息个数子字段，用于指示所述至少一个基本服务集中的一个基本服务集对应的第一用户信息字段的个数。
  14. 根据权利要求13所述的通信装置，其特征在于，所述至少一个的用户信息个数子字段中的一个用户信息个数子字段为第二值，所述第二值用于指示所述第一字段中不包括取值为所述第二值的用户信息个数子字段之后的用户信息个数子字段。
  15. 根据权利要求14所述的通信装置，其特征在于，所述第二值为全0或者全1。
  16. 根据权利要求5至15中任一项所述的通信装置，其特征在于，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述第一字段包括：关联标识子字段；
    所述关联标识子字段，用于指示所述第一字段的类型；
    所述关联标识子字段的值为特殊的AID。
  17. 根据权利要求4至16中任一项所述的通信装置，其特征在于，所述第一字段包括：基本服务集个数子字段；
    所述基本服务集个数子字段，用于指示所述至少一个基本服务集的个数。
  18. 一种上行协调的通信方法，其特征在于，包括：
    站点STA接收第一接入点AP发送的触发帧，所述触发帧用于触发所述站点发送基于触发帧的物理层协议数据单元PPDU，所述站点属于多个基本服务集中的一个基本服务集，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；
    所述站点确定需要发送所述基于触发帧的物理层协议数据单元PPDU。
  19. 根据权利要求18所述的方法，其特征在于，所述多个基本服务集的标识信息包括如下至少一种：所述多个基本服务集分别对应的基本服务集颜色、所述多个基本服务集分别对应的接入点标识、所述多个基本服务集分别对应的基本服务集标识、所述多个基本服务集分别对应的接入点的媒体介入控制MAC地址；
    所述站点的标识信息包括：所述站点的关联标识AID。
  20. 根据权利要求18至19中任一项所述的方法，其特征在于，所述触发帧包括：第 一字段和所述第一字段对应的至少一个第一用户信息字段，其中，
    所述第一字段包括：所述多个基本服务集中的至少一个基本服务集的标识信息；
    一个第一用户信息字段包括：所述至少一个基本服务集中的一个被触发的站点的标识信息；
    所述至少一个第一用户信息字段在所述触发帧中位于所述第一字段之后。
  21. 根据权利要求20所述的方法，其特征在于，所述第一字段承载于所述触发帧中的第二用户信息字段；或者，
    所述第一字段承载于所述触发帧中的公共信息字段；或者，
    所述第一字段承载于所述触发帧中的协调字段。
  22. 根据权利要求21所述的方法，其特征在于，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述至少一个基本服务集不包括所述第一接入点对应的第一基本服务集，且所述第一字段在所述触发帧中位于所述第一基本服务集对应的第一用户信息字段之后。
  23. 根据权利要求20至22中任一项所述的方法，其特征在于，所述触发帧包括多个的所述第一字段，和多个的所述第一字段分别对应的至少一个第一用户信息字段。
  24. 根据权利要求21所述的方法，其特征在于，若所述第一字段承载于所述触发帧中的公共信息字段，所述公共信息字段包括：触发类型子字段和基于触发类型的公共信息子字段；
    所述触发类型子字段，用于指示所述触发帧的触发类型；
    所述基于触发类型的公共信息子字段包括：所述第一字段。
  25. 根据权利要求21所述的方法，其特征在于，若所述第一字段为所述触发帧中的协调字段，所述触发帧还包括：公共信息字段，
    所述公共信息字段，用于指示所述触发帧的触发类型；
    所述协调字段在所述触发帧中位于所述公共信息字段之后。
  26. 根据权利要求20至25中任一项所述的方法，其特征在于，所述第一字段包括：至少一个的基本服务集标识子字段；
    一个基本服务集标识子字段，用于指示所述至少一个基本服务集中的一个基本服务集的标识信息。
  27. 根据权利要求26所述的方法，其特征在于，所述至少一个的基本服务集标识子字段中的一个基本服务集标识子字段为第一值，所述第一值用于指示所述第一字段中不包括取值为所述第一值的基本服务集标识子字段之后的基本服务集标识子字段。
  28. 根据权利要求27所述的方法，其特征在于，所述第一值为全0或者全1。
  29. 根据权利要求20至28中任一项所述的方法，其特征在于，所述第一字段包括：至少一个的用户信息个数子字段；
    一个用户信息个数子字段，用于指示所述至少一个基本服务集中的一个基本服务集对应的第一用户信息字段的个数。
  30. 根据权利要求29所述的方法，其特征在于，所述至少一个的用户信息个数子字段中的一个用户信息个数子字段为第二值，所述第二值用于指示所述第一字段中不包括取值 为所述第二值的用户信息个数子字段之后的用户信息个数子字段。
  31. 根据权利要求30所述的方法，其特征在于，所述第二值为全0或者全1。
  32. 根据权利要求21至31中任一项所述的方法，其特征在于，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述第一字段包括：关联标识子字段；
    所述关联标识子字段，用于指示所述第一字段的类型；
    所述关联标识子字段的值为特殊的AID。
  33. 根据权利要求20至32中任一项所述的方法，其特征在于，所述第一字段包括：基本服务集个数子字段；
    所述基本服务集个数子字段，用于指示所述至少一个基本服务集的个数。
  34. 一种上行协调的通信方法，其特征在于，包括：
    第一接入点AP生成触发帧，所述触发帧用于触发多个基本服务集BSS中的站点STA发送基于触发帧的物理层协议数据单元PPDU，所述触发帧包括：所述多个基本服务集的标识信息和所述站点的标识信息；
    所述第一接入点向所述站点发送所述触发帧。
  35. 根据权利要求34所述的方法，其特征在于，所述多个基本服务集的标识信息包括如下至少一种：所述多个基本服务集分别对应的基本服务集颜色、所述多个基本服务集分别对应的接入点标识、所述多个基本服务集分别对应的基本服务集标识、所述多个基本服务集分别对应的接入点的媒体介入控制MAC地址；
    所述站点的标识信息包括：所述站点的关联标识AID。
  36. 根据权利要求34至35中任一项所述的方法，其特征在于，所述触发帧包括：第一字段和所述第一字段对应的至少一个第一用户信息字段，其中，
    所述第一字段包括：所述多个基本服务集中的至少一个基本服务集的标识信息；
    一个第一用户信息字段包括：所述至少一个基本服务集中的一个被触发的站点的标识信息；
    所述至少一个第一用户信息字段在所述触发帧中位于所述第一字段之后。
  37. 根据权利要求36所述的方法，其特征在于，所述第一字段承载于所述触发帧中的第二用户信息字段；或者，
    所述第一字段承载于所述触发帧中的公共信息字段；或者，
    所述第一字段承载于所述触发帧中的协调字段。
  38. 根据权利要求37所述的方法，其特征在于，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述至少一个基本服务集不包括所述第一接入点对应的第一基本服务集，且所述第一字段在所述触发帧中位于所述第一基本服务集对应的第一用户信息字段之后。
  39. 根据权利要求36至38中任一项所述的方法，其特征在于，所述触发帧包括多个的所述第一字段，和多个的所述第一字段分别对应的至少一个第一用户信息字段。
  40. 根据权利要求37所述的方法，其特征在于，若所述第一字段承载于所述触发帧中的公共信息字段，所述公共信息字段包括：触发类型子字段和基于触发类型的公共信息子字段；
    所述触发类型子字段，用于指示所述触发帧的触发类型；
    所述基于触发类型的公共信息子字段包括：所述第一字段。
  41. 根据权利要求37所述的方法，其特征在于，若所述第一字段为所述触发帧中的协调字段，所述触发帧还包括：公共信息字段，
    所述公共信息字段，用于指示所述触发帧的触发类型；
    所述协调字段在所述触发帧中位于所述公共信息字段之后。
  42. 根据权利要求36至41中任一项所述的方法，其特征在于，所述第一字段包括：至少一个的基本服务集标识子字段；
    一个基本服务集标识子字段，用于指示所述至少一个基本服务集中的一个基本服务集的标识信息。
  43. 根据权利要求42所述的方法，其特征在于，所述至少一个的基本服务集标识子字段中的一个基本服务集标识子字段为第一值，所述第一值用于指示所述第一字段中不包括取值为所述第一值的基本服务集标识子字段之后的基本服务集标识子字段。
  44. 根据权利要求43所述的方法，其特征在于，所述第一值为全0或者全1。
  45. 根据权利要求36至44中任一项所述的方法，其特征在于，所述第一字段包括：至少一个的用户信息个数子字段；
    一个用户信息个数子字段，用于指示所述至少一个基本服务集中的一个基本服务集对应的第一用户信息字段的个数。
  46. 根据权利要求45所述的方法，其特征在于，所述至少一个的用户信息个数子字段中的一个用户信息个数子字段为第二值，所述第二值用于指示所述第一字段中不包括取值为所述第二值的用户信息个数子字段之后的用户信息个数子字段。
  47. 根据权利要求46所述的方法，其特征在于，所述第二值为全0或者全1。
  48. 根据权利要求37至47中任一项所述的方法，其特征在于，若所述第一字段承载于所述触发帧中的第二用户信息字段，所述第一字段包括：关联标识子字段；
    所述关联标识子字段，用于指示所述第一字段的类型；
    所述关联标识子字段的值为特殊的AID。
  49. 根据权利要求36至48中任一项所述的方法，其特征在于，所述第一字段包括：基本服务集个数子字段；
    所述基本服务集个数子字段，用于指示所述至少一个基本服务集的个数。
  50. 一种通信装置，其特征在于，包括处理模块，所述处理模块用于执行存储模块中存储的计算机执行指令，控制所述通信装置实现权利要求18至33，或者34至49中任一项所述的方法。
  51. 一种通信装置，其特征在于，包括收发模块和处理模块，所述收发模块，用于收发信息或者用于与其他网元通信，所述处理模块用于执行如权利要求18至33，或者34至49中任一项所述的方法。
  52. 一种通信装置，其特征在于，包括处理器，所述处理器被调用用于执行如权利要求18至33，或者34至49中任一项所述的方法。
  53. 一种芯片，其特征在于，包括处理电路和收发管脚，所述处理电路，用于执行如权利要求18至33，或者34至49中任一项所述的方法；所述收发管脚用于接收所述处理电路的控制，用于执行如权利要求18至33，或者34至49中任一项所述的方法中信号的收发。
  54. 一种计算机可读存储介质，用于存储计算机程序，所述计算机程序包括用于执行权利要求18至33，或者34至49中任一项所述的方法的指令。
  55. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如权利要求18至33，或者34至49中任一项所述的方法。
  56. 一种通信系统，其特征在于，所述通信系统包括：如前述权利要求1、3至17中中任一项所述的通信装置，和前述权利要求2至17中任一项所述的通信装置。
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