WO2019157825A1 - 一种数据传输的方法及相关装置 - Google Patents

一种数据传输的方法及相关装置 Download PDF

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Publication number
WO2019157825A1
WO2019157825A1 PCT/CN2018/107873 CN2018107873W WO2019157825A1 WO 2019157825 A1 WO2019157825 A1 WO 2019157825A1 CN 2018107873 W CN2018107873 W CN 2018107873W WO 2019157825 A1 WO2019157825 A1 WO 2019157825A1
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WIPO (PCT)
Prior art keywords
link
radio frame
information
access point
station
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Application number
PCT/CN2018/107873
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English (en)
French (fr)
Inventor
吴伟民
彭媛媛
于健
李云波
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019157825A1 publication Critical patent/WO2019157825A1/zh
Priority to US16/992,339 priority Critical patent/US11019615B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/29—Control channels or signalling for resource management between an access point and the access point controlling device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present invention relates to the field of communications, and in particular, to a data transmission method and related apparatus.
  • an access point (AP) and a station (STA) can form a directional beam by beamforming to increase the network transmission rate.
  • a prerequisite for beamforming is the need to know the channel information.
  • the access point needs to perform channel sounding to obtain channel information fed back by the station.
  • the huge channel feedback information often brings great overhead.
  • the process of acquiring channel information by the current access point may be: the first access point (such as AP1) sends null data packet announcement (NDPA) and null data packet (null data).
  • NDPA null data packet announcement
  • null data null data packet
  • the NDP is used by the first station and the second station to obtain channel information with the first access point; the second access point (such as AP2) sends NDP, and the NDP is used for the first station and the second The station obtains its channel information with the second access point. Then, the first station and the second station respectively feed back the channel status to the first access point and the second access point through a corresponding beamforming report (BF Report).
  • BF Report beamforming report
  • the channel state is acquired in the form of a beamforming report, and the information transmission overhead is large.
  • the embodiment of the present application provides a data transmission method and related device, and the method is applicable to a communication system, where the communication system includes an access controller (or a primary access point), multiple access points, and multiple A site associated with each access point in the access point, where the access controller (or the primary access point) can be wiredly connected to multiple access points to reduce air interface overhead, and the access controller can obtain
  • the historical information is used to determine which interferences between the links are less than a threshold, thereby beam pairing the links to reduce the overhead of transmitting information for reporting channel conditions.
  • an embodiment of the present application provides a data transmission method, including:
  • the access controller acquires history information, where the history information is a set of link information of at least two links and a set of indication information, and the link in this example is between the access point and the site.
  • Link the link information is used to indicate the sender of the radio frame transmitted on the link, the receiver of the radio frame, and the transmission time interval of the radio frame, wherein the transmission time interval may be from the transmission of the radio frame
  • the start time, the end time is indicated, or the transmission time may also be indicated by the start time of the transmission radio frame
  • the indication information is used to indicate whether the receiver successfully receives the radio frame transmitted on the link, at least
  • the transmission time interval of the radio frame transmitted on each of the two links has overlapping target time intervals, that is, the transmission time interval of the radio frames on each of the at least two links may be partially overlapping.
  • the access controller may determine the target link group according to the received history information, that is, according to the set of link information of at least two links and the set of indication information.
  • the standard link group includes: at least two links, the indication information indicates that the receiver successfully receives the target link of the radio frame transmitted on the link; the access controller (or the primary access point) can pass the link.
  • the set of information and the set of indication information may determine that in the same time period, the stations in which links have not successfully received the radio frames sent by the access point, that is, in these links, the station receives the access point to transmit the radio frame.
  • the process is interfered by radio frames sent by other access points; the stations in which links successfully receive the radio frames sent by the access point, that is, in these links, the station receiving access points do not send radio frames during the process.
  • the feedback amount of the link information and the indication information is greatly reduced compared to the beamforming report, and the information overhead for detecting the channel is greatly reduced.
  • the sender of each target link in the target link group may be scheduled, in the same time interval.
  • the precoding matrix corresponding to the transmission time interval is used to send data to the receivers in the respective links; in the historical information, the precoding matrix adopted by the sender in the target link is used when transmitting the radio frame, between the target links.
  • the interference is less than the threshold. Therefore, at the current time or in the future time, the access controller may schedule the sender of each target link in the target link group, and adopt the precoding matrix corresponding to the transmission time interval in the same time interval. Send data to recipients in their respective links.
  • the access controller may schedule an access point of each target link in the link group, In the same time interval, the precoding matrix corresponding to the transmission time interval is used to transmit data to the stations in the respective links.
  • uplink data when uplink data is transmitted, that is, when the sender is a station and the receiver is an access point,
  • the access controller may schedule access points in each target link in the link group, and trigger stations in the respective links to send data to the access point by using a precoding matrix corresponding to the transmission time interval in the same time interval. .
  • the sender when transmitting downlink data, the sender is an access point, and the receiver is a site, and the indication information is used to indicate whether the access point successfully receives when the access point sends data to the corresponding station. Confirmation information to the site feedback.
  • the sender when transmitting uplink data, the sender is a station, the receiver is an access point, and the access controller schedules the access point to send a trigger frame to the station, and the trigger frame is used to indicate the site access
  • the point sends data; the indication information sent by the access point is received, and the indication information is used to indicate whether the access point successfully receives the data sent by the station.
  • an embodiment of the present invention provides a data transmission apparatus on an access controller side, which has the functions performed by the access controller in the foregoing method.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the data transmission device of the access controller includes:
  • An acquiring module configured to acquire a set of link information and a set of indication information of at least two links, where the link information is used to indicate a sender of a radio frame transmitted on the link, a receiver of the radio frame, and a radio frame Transmission time interval; indication information is used to indicate whether the receiver successfully receives the radio frame transmitted on the link, and the transmission time interval of the radio frame transmitted on each link of the at least two links has overlapping target time intervals
  • a determining module configured to determine a target link group according to the set of link information and the indication information of the at least two links acquired by the obtaining module, where the target link group includes: at least two links, indication information is indicated The receiver successfully receives the target link of the radio frame transmitted on the link.
  • the data transmission device of the access controller further includes a scheduling module
  • a scheduling module configured to schedule, by the determining, the sender of each target link in the target link group determined by the determining module, and send the precoding matrix corresponding to the transmission time interval to the receiver in the respective link in the same time interval data.
  • the sender when the sender is an access point and the receiver is a station, the sender of each target link in the target link group is scheduled, and the module is scheduled in the same time interval.
  • the access point for scheduling each target link in the target link group transmits data to the stations in the respective links by using a precoding matrix corresponding to the transmission time interval in the same time interval.
  • the scheduling module is further configured to schedule an access point in each target link in the target link group at the same time.
  • the stations in the respective links are triggered to send data to the access point by using a precoding matrix corresponding to the transmission time interval.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the access controller, which includes a program designed to execute the above first aspect.
  • an embodiment of the present application provides a data transmission apparatus on an access controller side, including a memory, a transceiver, and a processor.
  • the memory is for storing computer executable program code and is coupled to the transceiver.
  • the program code includes instructions that, when executed by the processor, cause the access controller to perform the information or instructions involved in the above method.
  • an embodiment of the present application provides a processor, where the processor is configured to be coupled to a memory, and the instructions may be executed to implement the method and function involved in the access controller in the foregoing aspect, where the memory may be independent of the processor, where A memory can also be provided in the processor.
  • a method for data transmission including:
  • the access point generates link information and indication information, where the link information is used to indicate that the sender of the radio frame, the receiver of the radio frame, and the transmission time interval of the radio frame are transmitted on the link, and the indication information is used to indicate reception. Whether the party successfully receives the radio frame transmitted by the sender; the access point in the embodiment of the present application sends the link information and the indication information to the access controller, where the link information and the indication information are used by the access controller to determine the target chain.
  • the path group, the target link group includes at least two target links, and the target link group includes: the indication information indicates that the receiver successfully receives the target link of the radio frame transmitted on the link, and each target in the target link group
  • the transmission time interval of the radio frame transmitted on the link has overlapping target time intervals, that is, the target link group can perform beamforming pairing, and the interference between the beams is less than the threshold.
  • the access point sends a first radio frame to the station, where the indication information is used to indicate whether the station successfully receives the first radio frame sent by the access point, if the indication information indicates that the station successfully receives the connection.
  • the first radio frame sent by the ingress point can be understood as: in the process of receiving the first radio frame, the station does not interfere with the radio frame sent by other access points (the unassociated access point of the station);
  • the indication information indicates that the station does not successfully receive the first radio frame sent by the access point, and can be understood as: when the station receives the first radio frame, it is subjected to other access points (the non-associated connection of the station) Incoming) The interference of the transmitted radio frame.
  • the access point sends a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point, and the indication information is used to indicate whether the access point successfully receives the sending of the station.
  • a second radio frame if the indication information indicates that the access point successfully receives the second radio frame sent by the station, it can be understood that the access point does not receive other non-associated sites during the process of receiving the second radio frame sent by the station.
  • the interference of the transmitted radio frame if the indication information indicates that the access point does not successfully receive the second radio frame sent by the station, it can be understood that the access point receives other non-in the second radio frame sent by the station. Interference from radio frames sent by the associated site.
  • an embodiment of the present application provides a computer storage medium, configured to store computer software instructions used by the access point, and includes a program designed to execute the fifth aspect.
  • the embodiment of the present application provides a data transmission apparatus on an access point side, which has the functions performed by an access point in actual implementation in the foregoing method.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the data transmission device includes:
  • a generating module configured to generate link information and indication information, where the link information is used to indicate a sender that transmits a radio frame on the link, a receiver of the radio frame, and information about a transmission time interval of the radio frame, where the indication information is used to indicate Whether the receiver successfully receives the radio frame transmitted by the sender;
  • the first sending module is configured to send the link information generated by the generating module to the access controller, where the link information is used by the access controller to determine the target chain according to the link information.
  • the path group, the target link group includes at least two target links, and the target link group includes: the indication information indicates that the receiver successfully receives the target link of the radio frame transmitted on the link, and each target in the target link group The transmission time interval of the radio frame transmitted on the link has overlapping target time intervals.
  • the sending module is further configured to send a first radio frame to the station, where the indication information is used to indicate whether the station successfully receives the first radio frame sent by the access point.
  • the sending module is further configured to send a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point, and the indication information is used to indicate whether the access point successfully receives the site.
  • the second radio frame sent is further configured to send a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point, and the indication information is used to indicate whether the access point successfully receives the site.
  • the second radio frame sent is further configured to send a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point, and the indication information is used to indicate whether the access point successfully receives the site.
  • the second radio frame sent is further configured to send a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point, and the indication information is used to indicate whether the access point successfully receives the site. The second radio frame sent.
  • the data transmission apparatus on the access point side in the embodiment of the present application includes a memory, a transceiver, and a processor.
  • the memory is for storing computer executable program code and is coupled to the transceiver.
  • the program code includes instructions that, when executed by the processor, cause the access point to perform the information or instructions involved in the above method.
  • an embodiment of the present application provides a processor, where the processor is configured to be coupled to a memory, and can execute instructions to implement the method and function involved in the access point in the foregoing aspect, where the memory can be independent of the processor, the memory It can also be set in the processor.
  • a method for data transmission including:
  • the access controller acquires history information, where the history information is a set of link information and a set of interference information, the set of link information is used to indicate a link set; and one link information in the set of link information is included in the link.
  • the sender of the transmitted radio frame is the first access point
  • the receiver of the radio frame is the first station
  • the transmission time interval of the radio frame is associated with the first access point
  • each of the link sets is
  • the transmission time interval of the radio frame transmitted on the link has overlapping target time intervals
  • the interference information is used to indicate that the signal strength of the radio frame received by the second station is greater than or equal to the threshold in the transmission time interval of the radio frame.
  • the second station is associated with the second access point; the access controller determines the target link group according to the set of link information and the set of interference information, wherein the target link group is: in addition to the interference link, in the link set The outer link, the interference link is the link between the second access point and the second station; the target link in the target link group is: in the historical time interval, between each target link If the interference is less than the preset threshold, the channel detection in the traditional method is not needed, and the beamforming pairing can be performed according to the target link group. Compared with the traditional method, the feedback amount of the link information and the indication information is compared with the beam. The forming report is greatly reduced, greatly reducing the information overhead for detecting channels.
  • the sender of each target link in the target link group is scheduled to be used in the same time interval.
  • the precoding matrix corresponding to the transmission time interval transmits data to the receivers in the respective target links.
  • the precoding matrix adopted by the sender in the target link is used when transmitting the radio frame, between the target links.
  • the interference is less than the threshold. Therefore, at the current time or in the future time, the access controller can schedule the sender of each target link in the target link group, and use the precoding corresponding to the transmission time interval in the same time interval.
  • the matrix sends data to the receivers in their respective links.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the access controller, which includes a program designed to perform the above aspects.
  • the embodiment of the present application provides a data transmission apparatus on an access controller side, which has the functions performed by the access controller in the foregoing method.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the access controller includes: an acquiring module, configured to acquire a set of link information and a set of interference information, where the set of link information is used to indicate a link set; and one link information in the set of link information
  • the sender of the radio frame transmitted on the link is the first access point, the receiver of the radio frame is the first station, and the transmission time interval of the radio frame, and the first access point is associated with the first station, and the chain
  • the transmission time interval of the radio frame transmitted on each link in the path set has overlapping target time intervals;
  • the interference information is used to indicate the signal strength of the radio frame received by the second station in the transmission time interval of the radio frame
  • the second link is associated with the second access point, and the determining module is configured to determine the target link group according to the set of link information acquired by the obtaining module and the set of interference information, where the target link group is:
  • the interfering link is the link between the second access point and the second station.
  • the data transmission apparatus further includes a scheduling module, and a scheduling module, configured to schedule, by the determining, the sender of each target link in the target link group determined by the determining module, in the same time interval, adopting The precoding matrix corresponding to the transmission time interval transmits data to the receivers in the respective target links.
  • the structure of the data transmission device on the access controller side includes a memory, a transceiver, and a processor.
  • the memory is for storing computer executable program code and is coupled to the transceiver.
  • the program code includes instructions that, when executed by the processor, cause the access controller to perform the information or instructions involved in the above method.
  • an embodiment of the present application provides a processor, where the processor is configured to be coupled to a memory, and the instructions may be executed to implement the method and function involved in the access controller in the foregoing aspect, where the memory may be independent of the processor, where A memory can also be provided in the processor.
  • the embodiment of the present application provides a data transmission method, including:
  • the access point sends a first radio frame to the station, where the station is associated with the access point; the access point generates link information, and the link information is used to indicate that the sender of the first radio frame is the access point, first The receiver of the radio frame is the station, and the transmission time interval of the radio frame; the access point receives the interference information sent by the station, and the interference information is used to indicate that the station receives the first radio frame and receives other than the access point.
  • the second radio frame whose signal strength sent by the access point is greater than or equal to the threshold; the access point sends the link information and the interference information to the access controller, and the link information and the interference information are used by the access controller according to the link information and
  • the interference information determines a target link group, which is a link other than the interference link in the link set, and the interference link is a link between the access point and the station. That is, channel detection in the conventional method is not required, and beamforming pairing can also be performed according to the target link group. Compared with the conventional method, the feedback amount of the link information and the interference information is greatly reduced compared to the beamforming report, which is extremely large. The information overhead for detecting channels is reduced.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the data transmission device on the access point side, which includes a program designed to execute the above aspects.
  • the embodiment of the present application provides a data transmission apparatus on an access point side, which has the functions performed by the actual access point in the foregoing method.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the access point includes: a sending module, configured to send a first radio frame to the target station; a generating module, configured to generate link information, where the link information is used to indicate that the sender of the first radio frame is an access point
  • the receiver of the first radio frame is the target station, and the information of the transmission time interval of the radio frame;
  • the receiving module is configured to receive the interference information sent by the target station, and the interference information is used to indicate that the station receives the first radio frame when receiving the first radio frame.
  • the sending module is further configured to send the link information generated by the generating module and the interference information received by the receiving module
  • the controller, the link information and the interference information are used by the access controller to determine the target link group according to the link information and the interference information, and the target link group is: a link other than the interference link in the link set,
  • the interfering link is the link with the target site.
  • the structure of the data transmission device on the access point side includes a memory, a transceiver, and a processor.
  • the memory is for storing computer executable program code and is coupled to the transceiver.
  • the program code includes instructions that, when executed by the processor, cause the access point to perform the information or instructions involved in the above method.
  • an embodiment of the present application provides a processor, where the processor is configured to be coupled to a memory, and can execute instructions to implement the method and function involved in the access point in the foregoing aspect, where the memory can be set independently of the processor. It can also be set in the processor.
  • the present application provides a data transmission method, including:
  • the station receives the radio frame; when the signal strength of the radio frame measured by the station is greater than or equal to the threshold, the station generates interference information, where the interference information includes the receiver of the radio frame and the information of the transmission time interval of the radio frame, and the station is the non-radio frame.
  • a target receiver when the station measures that the received signal strength of the radio frame is greater than or equal to the threshold, the radio frame received by the station is sent by an unassociated access point of the station, and the radio frame is an interference frame;
  • the station sends the interference information to the access point associated with it, so that the access point sends the interference information, and the interference information is used to determine the target link group, which is in addition to the interference link in the link set.
  • Link the interfering link is the link between the site and the access point associated with the site.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the data transmission apparatus on the site side, which includes a program designed to execute the above aspects.
  • the embodiment of the present application provides a data transmission apparatus at a site side, which has the functions performed by the actual site in the foregoing method.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the station includes: a receiving module, configured to receive a radio frame, and a generating module, configured to generate interference information when the measured signal strength of the radio frame is greater than or equal to a threshold, where the interference information includes a receiver of the radio frame, and the wireless a transmission time interval of the frame; a sending module, configured to send the interference information generated by the generating module to the target access point, where the interference information is used to determine the target link group, where the target link group is: in addition to the interference link, in the link set The outer link, the interference link is the link between the target access point and the target site.
  • the structure of the site includes a memory, a transceiver, and a processor.
  • the memory is for storing computer executable program code and is coupled to the transceiver.
  • the program code includes instructions that, when executed by the processor, cause the station to perform the information or instructions involved in the above method.
  • an embodiment of the present application provides a processor, where the processor is configured to be coupled to a memory, and the instructions may be executed to implement the method and function involved in the foregoing embodiment.
  • the memory may be independent of the processor, and the memory is also Can be set in the processor.
  • the access controller acquires historical information sent by multiple access points, where the historical information may be a set of link information and a set of indication information, or the historical information is also It may be a set of link information and a set of interference information, where the history information includes information of multiple links, and the access controller (or the primary access point) determines which links among the multiple links are between If the same transmission time interval interference is smaller than the threshold, the links whose mutual interference is less than the threshold are determined as the target link group, and the target link in the target link group can be beamformed and paired, compared with the conventional method.
  • the channel detection is required to transmit the transmission information for determining the channel state, such as the beamforming report. In the embodiment of the present application, the information overhead for detecting the channel is greatly reduced.
  • FIG. 1 is a schematic diagram of acquiring channel information in the prior art
  • FIG. 2 is a schematic structural diagram of an example of a communication system in an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of another example of a communication system in an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of steps of an embodiment of a method for data transmission in an embodiment of the present application
  • FIG. 5 is a schematic flowchart of steps of another embodiment of a method for data transmission according to an embodiment of the present application
  • FIG. 6 is a schematic flowchart of steps of another embodiment of a method for data transmission according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an embodiment of a data transmission apparatus on an access controller side according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a data transmission apparatus on an access point side according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an embodiment of a data transmission apparatus on a site side according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another embodiment of a data transmission apparatus on an access controller side according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of another embodiment of a data transmission apparatus on a site side according to an embodiment of the present application.
  • the embodiment of the present application provides a data transmission method and related device, which are used to reduce information overhead of channel detection.
  • FIG. 2 is a schematic structural diagram of an example of a communication system
  • FIG. 3 is a schematic diagram of the communication.
  • AC access controller
  • the number of the access points and the number of the sites in the embodiment of the present application are not limited, and may be two or more. In the embodiment of the present application, the number of the access points is described by taking three as an example, and the number of the sites is also described by taking three as an example.
  • the multiple access points 202 include the first access point (AP1) 2021. a second access point (AP2) 2022, a third access point (AP3) 2023, and the plurality of stations 203 includes a first station (STA1) 2031, a second station (STA1) 2032, and a third station (STA3) 2033.
  • the first station is associated with the first access point, that is, the first site is a site within the cell range of the access point, the second site is associated with the second access point, and the third site is associated with the third access point.
  • Union
  • the architecture illustrated in FIG. 3 differs from the architecture illustrated in FIG. 2 in that, in the architecture of FIG. 3, the functionality of the access controller may be implemented by one of a plurality of access points, the access being A primary access point (primary AP), which may be an access point designated by the access controller, or an initiator that establishes an access point for coordinated transmission, or may acquire transmission through the contention channel for the first time.
  • a primary access point (primary AP)
  • the access point of the opportunity in the embodiment of the present application, the specific selection manner of the primary AP is not limited.
  • the communication system includes: a first access point (AP1) 301, a second access point (AP2) 302, a third access point (AP3) 303, and a first station (STA1). 304, a second station (STA1) 305 and a third station (STA3) 305, wherein the first access point (AP1) 301 is a primary access point, and the primary access point is used to perform access control in FIG.
  • the first station 304 is associated with the first access point 301, that is, the first station 304 is a station within the first access point 301 cell, and the second station 305 is associated with the second access point 302.
  • the second station 305 is a station in the cell of the second access point 302
  • the third station 305 is associated with the third access point 303, that is, the third station 305 is a station in the cell of the third access point 303.
  • the number of sites associated with one access point is not limited. In the embodiment of the present application, for convenience of description, the number of sites associated with each access point is one.
  • the communication system in the embodiment of the present application is described by taking the architecture illustrated in FIG. 2 as an example.
  • the specific deployment architecture of the communication system may be the architecture in FIG. 2 or FIG. 3, which is not limited.
  • the access point in this embodiment of the present application may include, but is not limited to, a communication server, a router, a switch, a bridge, a computer, a mobile phone, an in-vehicle communication device, a relay communication module, a base station, and the like.
  • Sites may include, but are not limited to, mobile phones, computers, in-vehicle terminals, personal digital assistants (PDAs), and the like.
  • the access point may be a router, and the site may be a mobile phone as an example.
  • the access controller acquires a set of link information and a set of indication information of at least two links, and a transmission time interval of the radio frame transmitted on each link of the at least two links has Overlapping target time intervals.
  • the set of link information and the set of interference information are historical information received by the access control, wherein the link information may be used to indicate a sender of a radio frame transmitted on the link, a receiver of the radio frame, and a wireless At least one of the information of the transmission time interval of the frame; the indication information may be used to indicate whether the receiver successfully receives the radio frame transmitted on the link, and whether the receiver successfully receives the radio frame transmitted on the link may be understood as The receiver correctly parses the address of the sender in the radio frame, the address of the receiver, the timestamp, the length of the data, etc.; the access controller can determine the target link group according to the received history information, and the target link The group includes: in at least two links, the indication information indicates that the receiver successfully receives the target link of the radio frame transmitted on the link.
  • the access controller performs beamforming pairing according to the received historical information sent by multiple access points, that is, does not need to perform channel detection, and can determine that multiple interferences between the two are less than a preset threshold in the same time period.
  • the target link ie, the beam
  • the present application is described in detail below by way of examples.
  • the sender of the radio frame is the access point
  • the receiver of the radio frame is the station
  • Step 401 The access point sends a radio frame to the station.
  • the first access point sends a first radio frame to the first station; the second access point sends a second radio frame to the second station; and the third access point sends a third radio frame to the third station.
  • Step 402 The access point generates link information, where the link information is used to indicate a sender of the radio frame transmitted on the link, a receiver of the radio frame, and a transmission time interval of the radio frame.
  • the link information includes a sending address, a receiving address, a timestamp, a data length, a frame check sequence (FCS), and the sending address may indicate a sender of the radio frame (eg, an address of the first access point),
  • the receiving address indicates the receiver of the radio frame (eg, the address of the first station), and the timestamp may indicate that the first access point sends the sending moment of the radio frame to the first station,
  • the data length indicates the length of the radio frame, and the frame detection sequence Used by the receiver to determine if an error has occurred in the frame.
  • the information indicating the transmission time interval of the first radio frame by the time stamp and the data length.
  • the time stamp is 08:00:00 on January 01, 2018 (as indicated by "t0")
  • the t0 and t1 can be represented by the start time t0 of transmitting the radio frame and the end time t1 of the data length.
  • the wireless frame transmission time interval (ie, t1-t0).
  • the timestamp may include a first timestamp and a second timestamp
  • the first timestamp may indicate a starting time t0 of transmitting a radio frame
  • the second timestamp may indicate sending a radio frame The end time t1.
  • the transmission time interval (ie, t1-t0) of the radio frame can be directly indicated by t0 and t1.
  • the link information may include a sending address, a receiving address, a timestamp, and a length of the transmitted data
  • the timestamp indicates a starting time t0 of transmitting the radio frame
  • the time stamp and the length of the transmitted data may indicate the wireless The transmission time interval of the frame (ie t1-t0).
  • the first access point generates first link information
  • the second access point generates second link information
  • the third access point generates third link information
  • Step 403 The access point sends link information to the access controller.
  • the first access point sends the first link information to the access controller
  • the second access point sends the second link information to the access controller
  • the third access point sends the third link to the access controller.
  • Link information
  • Step 404 The station receives the radio frame. If the station successfully receives the radio frame, the acknowledgment information (such as an ACK acknowledgement frame) for successfully receiving the radio frame is fed back to the access point. If the station does not successfully receive the radio frame, no feedback is received. ACK, or feedback non-acknowledgement frame (No ACK, NACK).
  • the acknowledgment information such as an ACK acknowledgement frame
  • the first station receives the first radio frame, and if the first station successfully receives the radio frame, the acknowledgment information (such as an ACK acknowledgement frame) for successfully receiving the first radio frame is fed back to the first access point, if the first If the station does not successfully receive the first radio frame, it does not feed back the ACK or feed back the NACK.
  • the acknowledgment information such as an ACK acknowledgement frame
  • step 404 may be performed before step 402 or concurrently with step 402.
  • the timing of step 404 is not limited in this example.
  • Step 405 The access point generates indication information, where the indication information is used to indicate whether the receiver successfully receives the radio frame transmitted on the link. Specifically, the first access point generates the first indication information, where the first indication information is used to indicate that the first station receives the radio frame, that is, whether the first station successfully receives the radio frame sent by the first access point.
  • Step 406 The access point sends the indication information to the access controller.
  • the first access point sends the first indication information to the access controller
  • the second access point sends the second indication information to the access controller
  • the third access point sends the third indication information to the access controller.
  • the access point sends the link information and the indication information to the access controller respectively.
  • the link information in step 403 and the indication information in step 406 can be accessed together.
  • the controller sends, that is, step 403 may not be performed.
  • the access point sends feedback information to the access controller.
  • the feedback information includes link information and indication information, and the format of the feedback information is as shown in Table 2 below:
  • Step 407 The access controller receives a set of link information sent by multiple access points and a set of indication information, and stores a set of link information and a set of interference information.
  • the set of link information and the set of indication information are historical information sent by multiple access points acquired by the access controller.
  • the set of the link information includes the first link information sent by the first access point, the second link information sent by the second access point, and the third link information sent by the third access point, where
  • the first link information indicates a first link between the first access point and the first station
  • the second link information indicates a second link between the second access point and the second station
  • the third link The information indicates a third link between the third access point and the third station.
  • the timestamp and the data length indicated in the first link information indicate that the transmission time interval of the first radio frame is the first time to the fifth time; the timestamp and the data length indication in the second link information are transmitted.
  • the transmission time interval of the second radio frame is the second time to the fifth time; the time stamp of the third link information and the transmission time interval of the third radio frame indicated by the data length are the second time to the fourth time, that is, three
  • the transmission time interval of the radio frame transmitted on each link of the links has overlapping target time intervals, and the target time interval may be a partially overlapping time interval. In this example, the partially overlapping target time interval is the second.
  • the time to the fourth time; in this example, the target time interval may be all time intervals, and in another example, the transmission time interval of the first radio frame is the first time to the fifth time, and the transmission time of the second wireless frame The interval is the first time to the fifth time, and the transmission time interval of the third radio frame is the first time to the fifth time, and the target time interval is the time period in which all the overlapping time intervals are overlapped. It should be noted that, in this example, the transmission time interval is illustrative and does not result in a limited description of the present application.
  • the set of indication information includes first indication information, second indication information, and third indication information.
  • the first indication information indicates that the first station successfully receives the first radio frame sent by the first access point, that is, the first indication information indicates that the ACK of the first station feedback is successfully received.
  • the second indication information indicates that the second station does not successfully receive the second radio frame sent by the second access point, that is, the second indication information indicates that the ACK of the second station feedback is not successfully received.
  • the third indication information indicates that the third station successfully receives the third radio frame sent by the third access point, that is, the third indication information indicates that the ACK of the third station feedback is successfully received.
  • Step 408 The access controller determines, according to the set of link information of the at least two links and the set of indication information, the target link group, where the target link group includes: at least two links, the indication information indicates that the receiver succeeds The target link of the radio frame transmitted on the link is received.
  • the second indication information indicates that the second station does not successfully receive the second radio frame sent by the second access point, indicating that the second station receives other access points during the process of receiving the second radio frame (the first access point and / or third access point) interference of the radio frame transmitted, the access controller records the second link (ie, the link between the second access point and the second site) into the blacklist.
  • the first interference information indicates that the first station successfully receives the first radio frame sent by the first access point
  • the third interference information indicates that the third station successfully receives the third radio frame sent by the third access point
  • the access controller will
  • the first link ie, the link between the first access point and the first site
  • the third link ie, the link between the third access point and the third site
  • the whitelist is used to record the target link group.
  • the target link included in the target link group recorded in the whitelist is the link that the station successfully receives the radio frame sent by the sender.
  • the blacklist is used to record the interfering link, that is, the link that the station does not successfully receive the radio frame sent by the access point.
  • the access controller acquires historical information sent by at least two access points, where the historical information is a set of link information and a set of indication information, and the link indicated by the link information may be
  • the access controller (or the primary access point) can determine through the set of link information and the set of indication information, which stations in the link are not successfully received in the same time period.
  • the radio frames sent by the ingress that is, in these links, the station receives the radio frame during the process of transmitting the radio frame, and is interfered by the radio frame sent by other access points; the stations in which the link successfully receive the transmission from the access point.
  • the station receiving access point transmits radio frames without being interfered by radio frames transmitted by other access points.
  • the link information is compared with the feedback amount of the indication information.
  • the beamforming report is greatly reduced, greatly reducing the information overhead for detecting channels.
  • Step 409 The access controller schedules the sender of each target link in the target link group to send data to the receivers in the respective links by using a precoding matrix corresponding to the transmission time interval in the same time interval.
  • the access controller schedules the sender in the target link, and instructs the sender to transmit the timestamp of the radio frame, for example, including the first timestamp in the first link information, and including the first time in the third link information.
  • the third timestamp the access controller sends a joint trigger frame, which is used to trigger joint transmission between the first access point and the first station, and between the third access point and the third station.
  • Step 410 The first access point sends a radio frame to the first station by using a precoding matrix corresponding to the first timestamp, and the third access point sends the radio frame to the third station by using a precoding matrix corresponding to the third timestamp.
  • the device may schedule the first access point to send a radio frame to the first station by using a precoding matrix corresponding to the first timestamp, and the third access point sends the radio frame to the third station by using a precoding matrix corresponding to the third timestamp, where a first time interval for transmitting data between the first access point and the first station, and a third time interval for transmitting data between the third access point and the third station have overlapping target time intervals, for example,
  • the first time interval is: the first time to the fifth time
  • the third time interval is: the first time to the fourth time
  • the target time interval is: the first time to the fourth time.
  • FIG. 5 another embodiment of a method for data transmission is provided in the embodiment of the present application:
  • the difference between the embodiment and the embodiment corresponding to FIG. 4 is that the sender of the radio frame is the station, and the receiver of the radio frame is the access point, and the target link group is determined by the transmission of the uplink data.
  • the access controller jointly schedules multiple access points, and each of the multiple access points sends a trigger frame to the associated station, where the trigger frame is used to instruct each station to send a radio frame to the corresponding access point.
  • Step 501 The access point sends a trigger frame to the station.
  • the first access point sends a trigger frame to the first station
  • the second access point sends a trigger frame to the second station
  • the third access point sends a trigger frame to the third station.
  • Step 502 The station sends an uplink radio frame to the access point according to the trigger frame.
  • the first station sends a first radio frame to the first access point
  • the second station sends a second radio frame to the second access point
  • the third station sends a third radio frame to the third access point.
  • Step 503 The access point generates feedback information according to whether the wireless frame sent by the station is successfully received, where the feedback information includes link information and indication information.
  • the format of the feedback information can be as shown in Table 3 below:
  • the first feedback information is generated, where, in the first feedback information, the bit of the “send address” is the address of the first station.
  • the bit of the “receiving address” is the address of the first receiving party, and the bit of "correctly received” is “1", and "1" indicates that the data transmitted by the first station is correctly received.
  • the second access point does not successfully receive the second radio frame sent by the second station, generating second feedback information, where the "send address”, “receive address”, and “data length” are in the second feedback information, A separate bit indication is adopted, that is, the individual bit indication is “unrecognized”, the “timestamp” may indicate the moment when the access point generates the feedback information, and the “correctly received” bit is “0”, that is, the second The access point did not successfully receive the radio frame.
  • the third access point successfully receives the third radio frame sent by the third station, and generates third feedback information.
  • the bit of the “send address” is the address of the third station, and “receiving address”
  • the bit of the bit is the address of the third receiver, and the bit of "correctly received” is "1".
  • Step 504 The access point sends feedback information to the access controller.
  • the first access point sends the first feedback information to the controller
  • the second access point sends the second feedback information to the controller
  • the second access point sends the third feedback information to the controller.
  • Step 505 The access controller receives a set of feedback information sent by multiple access points, where the set of feedback information includes a set of link information and a set of indication information, and stores the set of link information and the set of interference information. .
  • step 407 Please refer to step 407 for understanding, which will not be described here.
  • Step 506 The access controller determines, according to the set of link information of the at least two links and the set of indication information, the target link group, where the target link group includes: at least two links, the indication information indicates that the receiver succeeds The target link of the radio frame transmitted on the link is received.
  • the second feedback information indicates that the second access point does not successfully receive the second radio frame sent by the second station, indicating that the second access point is subjected to other sites in the process of receiving the second radio frame (the first station and/or The third station) interferes with the transmitted radio frame, and the access controller records the second link (ie, the link between the second access point and the second station) in the blacklist.
  • the first feedback information indicates that the first access point successfully receives the first radio frame sent by the first station
  • the third feedback information indicates that the third access point successfully receives the third radio frame sent by the third station
  • the access controller will
  • the first link ie, the link between the first access point and the first site
  • the third link ie, the link between the third access point and the third site
  • the whitelist is used to record the target link group.
  • the target link included in the target link group recorded in the whitelist is the link that the access point successfully receives the wireless frame sent by the station.
  • the blacklist is used to record the interfering link, that is, the link where the access point does not successfully receive the radio frame sent by the station.
  • Step 507 The access controller schedules the sender of each target link in the target link group to send data to the receivers in the respective links by using a precoding matrix corresponding to the transmission time interval in the same time interval.
  • the target link is a first link and a third link.
  • the access controller schedules the first access point to send a trigger frame to the first station, and the third access point sends a trigger frame to the third station; the first station sends the trigger frame to the first access point according to the first access point.
  • the wireless frame is sent, and the third station sends a wireless frame to the third access point according to the trigger frame sent by the third access point.
  • the access controller schedules the sender in the target link, and instructs the sender to transmit the timestamp of the radio frame.
  • the first timestamp is included in the first feedback information
  • the third timestamp is included in the third feedback information.
  • Step 508 The first access point sends a joint trigger frame to the first station, and the third access point sends a joint trigger frame to the third station, where the joint trigger frame is used to trigger the first station and the first access point. Joint transmission between the third station and the third access point.
  • Step 509 The first station sends a radio frame to the first access point by using the first precoding matrix corresponding to the first timestamp, and the third station sends the third precoding matrix corresponding to the third timestamp to the third access point.
  • Wireless frame The first station sends a radio frame to the first access point by using the first precoding matrix corresponding to the first timestamp, and the third station sends the third precoding matrix corresponding to the third timestamp to the third access point. Wireless frame.
  • the first receiving point receives the radio frame sent by the first station by using the receiving equalization matrix corresponding to the first precoding matrix
  • the third receiving point receives the radio sent by the third station by using the receiving equalization matrix corresponding to the third precoding matrix. frame.
  • the access controller acquires historical information sent by at least two access points, where the historical information is a set of link information and a set of indication information, and the link indicated by the link information may be
  • the access controller (or the primary access point) can determine through the set of link information and the set of indication information, which access points in the link are not successfully received in the same time period.
  • the radio frames sent to the station that is, in these links, the access point receiving station transmits wireless frames and is interfered by radio frames sent by other stations; the access points in which links successfully receive the radio frames sent by the station.
  • the access point receiving station transmits radio frames without being interfered by radio frames transmitted by other stations, and compared with the conventional method, the feedback amount of link information and indication information is compared with the beamforming report. Significantly reduced, greatly reducing the information overhead for detecting channels.
  • FIG. 6 another embodiment of a method for data transmission is provided in the embodiment of the present application:
  • Step 601 The access point sends a radio frame to a station of the cell.
  • the first access point sends the first radio frame to the first station
  • the second access point sends the second radio frame to the second station
  • the third access point sends the third radio frame to the third station.
  • Step 602 The access point generates link information.
  • the format of the link information is shown in Table 1, and is not described here.
  • the first access point generates the first link information, where the first link information is used to indicate that the sender of the first radio frame is the first access point, and the receiver of the first radio frame is the first site, and a first transmission time interval of the radio frame;
  • the second access point generates second link information, where the second link information is used to indicate that the sender of the second radio frame is the second access point, and the receiver of the second radio frame a second station, and a second transmission time interval of the radio frame;
  • the third access point generates third link information, where the third link information is used to indicate that the sender of the third radio frame is the third access point, The receiver of the three radio frames is the third station, and the third transmission time interval of the radio frame.
  • Step 603 The access point sends link information to the access controller. Specifically, the first access point sends the first link information to the access controller, the second access point sends the second link information to the access controller, and the third access point sends the third link to the access controller. Link information.
  • Step 604 The access controller receives a set of link information sent by multiple access points.
  • the set of link information includes first link information, second link information, and third link information.
  • the set of link information is used to indicate a set of links, the first link information indicates a first link, the first link is a link between the first access point and the first station; and the second link The information indicates a second link, the second link is a link between the second access point and the second station; the third link information indicates a third link, and the third link is a third access point The link to the third site.
  • Step 605 The station receives the radio frame.
  • the first station receives the first radio frame sent by the first access point
  • the second station receives the second radio frame sent by the second access point
  • the third station receives the third radio frame sent by the third access point.
  • One of the stations may have received radio frames sent by other access points in addition to the radio frames sent by the access point associated with it.
  • the second station receives the first radio frame sent by the first access point or the third radio frame sent by the third access point, and the second station detects the second radio frame.
  • the first radio frame (or the third radio frame) has a Receive Signal Strength Indicator (RSSI) greater than or equal to the threshold, indicating that the received first radio frame (or the third radio frame) interferes with the second station. .
  • RSSI Receive Signal Strength Indicator
  • step 605 may be performed before step 603 or simultaneously with step 603, and the specific timing is not limited.
  • Step 606 The second station generates interference information, where the interference information is used to indicate that the received signal strength indicator of the first radio frame (or the third radio frame) is measured by the second station in the transmission time interval of the radio frame (Receive Signal)
  • the Strength Indicator (RSSI) is greater than a predetermined threshold.
  • the second station receives the interference radio frame (ie, the first radio frame or the third radio frame) except the second radio frame, and the second station cannot identify the sending address, and in the interference information, the “sending address” may adopt a special
  • the value is indicated, for example, the sending address may be indicated as a broadcast address, or a separate bit indication may be used to identify the sending address.
  • the “receiving address” is the address of the second station, and the "timestamp” and the “data length” are used to indicate the transmission time interval at which the second station receives the interference frame, and the RSSI value can be a specific value measured by the second station, It is noted that the format of the interference information may not include the RSSI value. As long as the second station generates the interference information, it indicates that the RSSI value of the interference frame measured by the second station is greater than or equal to the threshold.
  • Step 607 The second station sends the interference information to a second access point associated with the second station.
  • Step 608 The second access point receives the interference information sent by the second station, and sends the interference information to the access controller.
  • steps 606-608 are optional steps, and may not be performed, that is, all stations do not receive interference frames.
  • Step 609 The access controller stores and collects a set of link information and a collection of interference information sent by multiple access points.
  • the set of the interference information includes the interference information sent by the second access point. It should be noted that, in actual applications, the set of the interference information may be an empty set, that is, all the stations do not receive the interference information.
  • the set of link information may include multiple link information.
  • the set of link information includes first link information, second link information, and third link.
  • the information, the set of the interference information includes the interference information sent by the second access point. It should be noted that, in this example, the set of the link information and the set of the interference information are examples for convenience of description, and do not cause A limited description of the application.
  • Step 610 The access controller determines a target link group according to the set of link information and the set of interference information, where the target link group is: a link other than the interference link in the link set, and the interference link is the first The link between the second access point and the second site.
  • the set of link information is used to indicate a set of links, a first transmission time interval in the first link information in the link set, a second transmission time interval in the second link, and a third transmission time interval
  • a transmission time interval has overlapping target time intervals, for example, a first transmission time interval, and an intersection of the third transmission time interval for transmitting data between the third access point and the third station, for example, the first time interval is From the first time to the fifth time, the second time interval is the second time to the fourth time, the third time interval is the first time to the fourth time, and the target time interval is the second time to the fourth time.
  • the second station receives the interference frame (the first radio frame sent by the first access point or the third radio frame sent by the third access point), indicating that the second station is sent by other access points.
  • Interference of a radio frame which may be the first radio frame sent by the first access point or the third radio frame sent by the third access point, therefore, if the access control is in the same time period Coordinating the first access point and the second access point jointly, the first radio frame sent by the first access point may cause interference to the second station, if the access control controller jointly schedules the third access point and the second The access point, the third radio frame sent by the third access point may also cause interference to the second station.
  • the access controller records the interference link (in this example, the link between the second access point and the second site), and the interference link is the connection of the site that receives the interference frame to the site. The link between the ingress points.
  • the access controller records a link in the link set except the interference link, where the link recorded in the white list is the target link, and the radio frame of each target link in the white list
  • the transmission time interval has overlapping portions.
  • Step 611 The access controller schedules the sender of each target link in the target link group to send the precoding matrix corresponding to the transmission time interval to the receivers in the respective target links in the same time interval. data.
  • the access controller schedules the sender in the target link to instruct the sender to transmit the timestamp of the radio frame, for example, including the first timestamp in the first link information, and including the third timestamp in the third link information.
  • the access controller sends a joint trigger frame, where the joint trigger frame is used to trigger joint transmission between the first access point and the first station, and between the third access point and the third station.
  • Step 612 The first access point sends a radio frame to the first station by using a precoding matrix corresponding to the first timestamp, and the third access point sends the radio frame to the third station by using a precoding matrix corresponding to the third timestamp.
  • the access controller (or the primary access point) stores history information, which is a set of acquired link information and a set of interference information, and each link information is used to indicate a link, a link.
  • the set of information is used to indicate a set of links; one link information in the set of link information includes a sender of the radio frame transmitted on the link as a first access point, and a receiver of the radio frame as a first station, And a transmission time interval of the radio frame, where the first access point is associated with the first station, that is, the first station is a station in the cell of the first access point, and the radio frame transmitted on each link in the link set
  • the transmission time intervals overlap; the interference information is used to indicate that, during the transmission time interval of the radio frame, the signal strength of the radio frame received by the second station is greater than or equal to the threshold, and the second station is associated with the second access point.
  • the second station is a station in the second access point cell; the access controller (or the primary access point) can determine the target link group according to the set of link information and the set of interference information, and the target link group.
  • the interfering link is the link between the second access point and the second station.
  • the target link in the target link group is: in the historical time interval, the interference between each target link is less than the link with the preset threshold, that is, the channel detection in the traditional method is not needed, and the target chain may also be used.
  • the path group performs beamforming pairing. Compared with the conventional method, the feedback amount of the link information and the indication information is greatly reduced compared to the beamforming report, and the information overhead for detecting the channel is greatly reduced.
  • the access controller and the first access point, the second access point, and the third access point may adopt a wired connection to save air interface overhead.
  • the present application further provides another embodiment, which may include the method corresponding to FIG. 4 and the method corresponding to FIG. 6.
  • a and/or B in the embodiment of the present application includes three schemes: 1, A; 2, B; 3, A, and B.
  • the access controller acquires history information sent by multiple access points, and the history information may include a set of link information and a set of interference information.
  • the access controller may determine, according to the historical information, the target link group recorded in the whitelist, and/or the interference link recorded in the blacklist.
  • the target link included in the target link group is: "the access point successfully receives the link of the radio frame sent by the associated station" and/or "the site does not receive the non-associated access point.”
  • the link of the radio frame, or the link that the station receives the signal strength of the radio frame transmitted by the non-associated access point is less than the threshold, and the transmission time interval of the target link in the target link group has overlapping target time intervals.
  • the interference link recorded in the blacklist is: the link where the access point does not successfully receive the radio frame sent by the associated station, and/or the station in the link receives the non-associated access point.
  • the access controller acquires historical information sent by multiple access points, where the historical information may be a set of link information and a set of indication information, and/or the historical information. It may also be a set of link information and a set of interference information, where the history information includes information of multiple links, and the access controller (or the primary access point) determines which links among the multiple links are When the interference in the same transmission time interval is less than the threshold, the links whose mutual interference is less than the threshold are determined as the target link group, and the target link in the target link group can be beamformed and paired, compared with the conventional method.
  • the channel information is not required to be transmitted, and the transmission information for determining the channel state, such as the beamforming report, is transmitted. In the embodiment of the present application, the information overhead for detecting the channel is greatly reduced.
  • FIG. 7 is a schematic structural diagram of a data transmission device on the access controller side.
  • a data transmission device 700 on the access controller side is provided:
  • the structure in FIG. 7 can also be the structure of the primary access point, and the data transmission device on the access controller side in FIG. 7 is used to execute the access controller in the method embodiment corresponding to FIG. 4, FIG. 5 and FIG. Or the method steps performed by the primary access point).
  • the data transmission device on the access controller side may include:
  • the obtaining module 701 is configured to acquire a set of link information and a set of indication information of the at least two links, where the link information is used to indicate a sender of the radio frame transmitted on the link, a receiver of the radio frame, and the wireless The information of the transmission time interval of the frame; the indication information is used to indicate whether the receiver successfully receives the radio frame transmitted on the link, and the transmission time intervals of the radio frames transmitted on each link of the at least two links have overlapping Target time interval;
  • the determining module 702 is configured to determine, according to the set of link information and the set of indication information of the at least two links acquired by the obtaining module 701, the target link group, where the target link group includes: at least two links, the indication information is A target link indicating that the receiver successfully received the radio frame transmitted on the link.
  • the access controller further includes a scheduling module 703;
  • the scheduling module 703 is configured to schedule, by the sender of each target link in the target link group determined by the determining module 702, to receive in the respective links by using a precoding matrix corresponding to the transmission time interval in the same time interval.
  • the party sends the data.
  • the scheduling module 703 is further configured to schedule an access point of each target link in the target link group, and send data to the stations in the respective links by using a precoding matrix corresponding to the transmission time interval in the same time interval.
  • the scheduling module 703 is further configured to schedule access points in each target link in the target link group, and trigger stations in the respective links to use the precoding matrix corresponding to the transmission time interval to access in the same time interval. Click to send data.
  • another embodiment of the present application further includes:
  • the obtaining module 701 is configured to acquire a set of link information and a set of interference information, where the set of link information is used to indicate a link set; and one link information in the set of link information includes a radio frame transmitted on the link.
  • the sender is the first access point
  • the receiver of the radio frame is the first station
  • the transmission time interval of the radio frame the first station is associated with the first access point, and each link in the link set is transmitted.
  • the transmission time interval of the radio frame has overlapping target time intervals;
  • the interference information is used to indicate that, during the transmission time interval of the radio frame, the signal strength of the radio frame received by the second station is greater than or equal to the threshold, and the second station and The second access point is associated;
  • the determining module 702 is configured to determine, according to the set of link information acquired by the obtaining module 701 and the set of interference information, the target link group is: a link other than the interference link in the link set, the interference The link is the link between the second access point and the second site.
  • the access controller further includes a scheduling module 703;
  • the scheduling module 703 is configured to schedule, by the determining, the sender of each target link in the target link group determined by the determining module 702, and use the precoding matrix corresponding to the transmission time interval in the same time interval to be in the respective target link.
  • the recipient sends the data.
  • FIG. 8 is a schematic structural diagram of a data transmission apparatus on an access point side.
  • a data transmission apparatus 800 on an access point side is provided:
  • the data transmission device on the access point side in FIG. 8 is used to perform the method steps performed by the access point in the above method embodiment.
  • the data transmission device 800 on the access point side may include:
  • the generating module 801 is configured to generate link information, where the link information is used to indicate a sender that transmits a radio frame on the link, a receiver of the radio frame, information about a transmission time interval of the radio frame, and indication information, where the indication information is used. Instructing the receiver whether the radio frame transmitted by the sender is successfully received;
  • the sending module 802 is configured to send, to the access controller, link information generated by the generating module 801, where the link information is used by the access controller to determine a target link group according to the link information, where the target link group includes at least two target chains.
  • the target link group includes: the indication information indicates that the receiver successfully receives the target link of the radio frame transmitted on the link, and the transmission time intervals of the radio frames transmitted on each target link in the target link group overlap. .
  • the sending module 802 is further configured to send a first radio frame to the station, where the indication information is used to indicate whether the station successfully receives the first radio frame sent by the access point.
  • the sending module 802 is further configured to send a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point;
  • the indication information is used to indicate whether the access point successfully receives the second radio frame sent by the station.
  • another embodiment of the present application further includes:
  • the data transmission device on the access point side further includes a receiving module 803;
  • a sending module 802 configured to send a first radio frame to the station
  • the generating module 801 is configured to generate link information, where the link information is used to indicate that the sender of the first radio frame is an access point, the receiver of the first radio frame is the station, and information about a transmission time interval of the radio frame;
  • the receiving module 803 is configured to receive interference information sent by the station, where the interference information is used to indicate that when the station receives the first radio frame, the signal strength sent by the access point other than the access point is greater than or equal to the threshold. Second radio frame;
  • the sending module 802 is further configured to send the link information generated by the generating module 801 and the interference information received by the receiving module 803 to the access controller, where the link information and the interference information are used by the access controller according to the link information and the interference information.
  • the target link group is determined.
  • the target link group is: a link other than the interference link in the link set, and the interference link is a link with the target station.
  • FIG. 9 is a schematic structural diagram of a data transmission apparatus on a site side.
  • the embodiment of the present application provides an embodiment of a data transmission apparatus on a site side, including:
  • the receiving module 901 is configured to receive a radio frame.
  • the generating module 902 is configured to generate interference information when the signal strength of the radio frame received by the receiving module 901 is greater than or equal to a threshold, where the interference information includes a receiver of the radio frame, and a transmission time interval of the radio frame;
  • the sending module 903 is configured to send the interference information generated by the generating module 902, so that the access point sends the interference information, where the interference information is used to determine the target link group, where the target link group is: The outer link, the interfering link is the link with the access point.
  • FIG. 10 another embodiment of the data transmission apparatus 1000 on the access controller side is further provided in the embodiment of the present application, including:
  • FIG. 10 is a schematic structural diagram of an access controller 1000 according to an embodiment of the present application.
  • the data transmission device 1000 can include a processor 1001, a transceiver 1003, and a memory 1002.
  • the memory 1002 can include read only memory and random access memory and provides instructions and data to the processor 1001.
  • a portion of the memory 1002 may also include a non-volatile random access memory (English name: Non-Volatile Random Access Memory, English abbreviation: NVRAM).
  • the memory 1002 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the transceiver 1003 is configured to receive a set of link information of at least two links and a set of indication information, where the link information is used to indicate a sender of the radio frame transmitted on the link, a receiver of the radio frame, and the wireless The information of the transmission time interval of the frame; the indication information is used to indicate whether the receiver successfully receives the radio frame transmitted on the link, and the transmission time intervals of the radio frames transmitted on each link of the at least two links have overlapping Target time interval;
  • the processor 1001 is configured to determine a target link group according to the set of link information of the at least two links and the set of indication information, where the target link group includes: at least two links, the indication information indicates that the receiver successfully receives The target link to the radio frame transmitted on the link.
  • the processor 1001 is further configured to schedule a sender of each target link in the target link group, and send data to the receivers in the respective links by using a precoding matrix corresponding to the transmission time interval in the same time interval.
  • the processor 1001 controls the operation of the data transmission device 1000.
  • the processor 1001 may also be referred to as a central processing unit (English full name: Central Processing Unit: CPU).
  • the memory 1002 can include read only memory and random access memory and provides instructions and data to the processor 1001. A portion of the memory 1002 may also include an NVRAM.
  • the various components of the data transmission device 1000 are coupled together via a bus 1004, wherein the bus 1004 can include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like.
  • various buses are labeled as bus 1004 in the figure.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 1001 or implemented by the processor 1001.
  • the processor 1001 may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1001 or an instruction in a form of software.
  • the processor 1001 may be a general-purpose processor, a digital signal processor (English name: Digital Signal Processing, English abbreviation: DSP), an application-specific integrated circuit (English name: Application Specific Integrated Circuit, English abbreviation: ASIC), ready-made programmable Gate array (English name: Field-Programmable Gate Array, English abbreviation: FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FPGA ready-made programmable Gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1002.
  • the processor 1001 reads the information in the memory 1002, and completes the steps of the method performed by the access controller in the method embodiment corresponding to FIG. 4 and FIG. 5 in combination with the hardware.
  • the storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002, and combines the hardware thereof to complete the access controller in the method embodiment corresponding to FIG. 6 above. The steps of the method performed.
  • the transceiver 1003 is further configured to acquire a set of link information and a set of interference information, where the set of link information is used to indicate a link set; and one link information in the set of link information is included on the link.
  • the sender of the transmitted radio frame is the first access point
  • the receiver of the radio frame is the first station
  • the transmission time interval of the radio frame, the first station is associated with the first access point, and each of the link sets
  • the interference information is used to indicate that, during the transmission time interval of the radio frame, the signal strength of the radio frame received by the second station is greater than or equal to the threshold, the second site and the Two access points are associated;
  • the processor 1001 is further configured to determine, according to the set of link information and the set of interference information, the target link group is: a link other than the interference link in the link set, and the interference link is the first The link between the second access point and the second site.
  • the processor 1001 is further configured to schedule a sender of each target link in the target link group, and send the precoding matrix corresponding to the transmission time interval to the receivers in the respective target links in the same time interval. data.
  • the processor 1001 is configured to enable the data transmission device on the access controller side to perform the method steps actually performed by the access controller in the corresponding method embodiments in FIG. 4, FIG. 5 and FIG.
  • the storage medium is located in the memory 1002.
  • the processor 1001 reads the information in the memory 1002, and combines the hardware to complete the steps of the method performed by the access point in the method embodiment corresponding to FIG. 4 and FIG.
  • the processor 1001 is configured to generate link information, where the link information is used to indicate a sender that transmits a radio frame on the link, a receiver of the radio frame, information about a transmission time interval of the radio frame, and indication information, and indication The information is used to indicate whether the receiver successfully receives the radio frame transmitted by the sender;
  • the transceiver 1003 is configured to send link information to the access controller, where the link information is used by the access controller to determine a target link group according to the link information, where the target link group includes at least two target links, and the target link
  • the group includes: the indication information indicates that the receiver successfully receives the target link of the radio frame transmitted on the link, and the transmission time intervals of the radio frames transmitted on each target link in the target link group overlap.
  • the transceiver 1003 is further configured to send a first radio frame to the station, where the indication information is used to indicate whether the station successfully receives the first radio frame sent by the access point.
  • the transceiver 1003 is further configured to send a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point, and the indication information is used to indicate whether the access point is successfully received.
  • the second radio frame sent by the station is further configured to send a trigger frame to the station, where the trigger frame is used to trigger the station to send the second radio frame to the access point, and the indication information is used to indicate whether the access point is successfully received.
  • the storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002, and performs the execution of the access point in the method embodiment corresponding to FIG. 6 in combination with the hardware thereof. The steps of the method.
  • the transceiver 1003 is configured to send the first radio frame to the target station.
  • the processor 1001 is configured to generate link information, where the link information is used to indicate that the sender of the first radio frame is an access point, the receiver of the first radio frame is a target station, and information about a transmission time interval of the radio frame;
  • the transceiver 1003 is configured to receive interference information sent by the target station, where the interference information is used to indicate that the signal strength sent by the access point other than the target access point is greater than or equal to the threshold when the station receives the first radio frame. Second wireless frame;
  • the transceiver 1003 is configured to send link information and interference information to the access controller, where the link information and the interference information are used by the access controller to determine the target link group according to the link information and the interference information, where the target link group is :
  • the interference link is the link between the target access point and the target site.
  • the processor 1001 may also be referred to as a central processing unit (English full name: Central Processing Unit, English abbreviation: CPU).
  • the memory 1002 can include read only memory and random access memory and provides instructions and data to the processor 1001. A portion of the memory 1002 may also include an NVRAM.
  • the components of the access controller 1000 are coupled together by a bus 1004.
  • the bus 1004 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus 1004 in the figure.
  • FIG. 11 another embodiment of the data transmission apparatus on the site side is provided in the embodiment of the present application, including:
  • the data transmission device on the site side may be a mobile terminal such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle. They exchange language and/or data with the radio access network.
  • a mobile terminal such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle.
  • PCS personal communication service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal. Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • FIG. 11 is a block diagram showing a partial structure of a site provided by an embodiment of the present application.
  • a transceiver 1110 a transceiver 1110, a memory 1120, an input unit 1130, a display unit 1140, a wireless fidelity (WiFi) module 1170, a processor 1180, and the like are included.
  • WiFi wireless fidelity
  • the components of the data transmission device on the site side will be specifically described below with reference to FIG. 11:
  • the transceiver 1110 can be used to send and receive information or receive and transmit signals during a call.
  • the memory 1120 can be used to store software programs and modules, and the processor 1180 performs various functional applications and data processing by executing software programs and modules stored in the memory 1120.
  • the memory 1120 may mainly include a storage program area and a storage data area. Further, the memory 1120 may include a high speed random access memory, and may also include a nonvolatile memory.
  • the input unit 1130 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the site.
  • the input unit 1130 may include a touch panel 1131 and other input devices 1132.
  • the display unit 1140 can be used to display information input by the user or information provided to the user as well as various menus of the site.
  • WiFi is a short-range wireless transmission technology.
  • the WiFi module 1170 can help users send and receive emails, browse web pages and access streaming media. It provides users with wireless broadband Internet access.
  • the processor 1180 is the control center of the site, interconnecting various portions of the entire site using various interfaces and lines, executing or executing software programs and/or modules stored in the memory 1120, and invoking data stored in the memory 1120, The site's various functions and processing data to monitor the site as a whole.
  • the transceiver 1110 or the WiFi module 1170 is configured to receive a radio frame.
  • the memory 1120 is configured to generate interference information when the measured signal strength of the radio frame is greater than or equal to a threshold, where the interference information includes a receiver of the radio frame, and information of a transmission time interval of the radio frame;
  • the transceiver 1110 or the WiFi module 1170 is configured to send the interference information to the target access point, so that the target access point sends the interference information to the access controller, and the interference information is used by the access controller to determine the target chain according to the interference information.
  • the path group, the target link group is: a link other than the interference link in the link set, and the interference link is a link between the target access point and the target station.
  • the processor 1180 is configured to enable the data transmission device on the site side to perform the method steps actually performed by the stations in FIG. 4, FIG. 5 and FIG. In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • wire eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be stored by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

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Abstract

本申请实施例公开了一种数据传输的方法及相关装置。本申请实施例方法包括：获取至少两条链路的链路信息的集合和指示信息的集合，链路信息用于指示在链路上传输的无线帧的发送方，无线帧的接收方，及无线帧的传输时间区间；指示信息用于指示接收方是否成功接收到链路上传输的无线帧，至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；根据至少两条链路的链路信息的集合和指示信息的集合确定目标链路组，目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路。用于减少信道检测的信息开销。

Description

一种数据传输的方法及相关装置
本申请要求于2018年02月14日提交中国专利局、申请号为201810153339.3、申请名称为“一种数据传输的方法及相关装置”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
本发明涉及通信领域，尤其涉及一种数据传输的方法及相关装置。
背景技术
在多天线系统中，接入点(Access Point，AP)和站点(station，STA)可以通过波束成型形成指向性的波束，以提高网络传输速率。波束成形的先决条件是需要知道信道信息，例如，对于发送波束成形来讲，接入点需要进行信道探测，获取站点反馈的信道信息，巨大的信道反馈信息往往带来很大的开销。
为了解决小区边缘互相干扰的问题，在无线通信系统中又引入了多小区间的协调波束成形(coordinate beamforming，CoBF)。CoBF对于信道信息的要求进一步提高，接入点不仅需要了解与本小区内部的站点之间的信道以外，还需要了解接入点和相邻小区内站点之间的信道，联合进行波束成形，在波束对准目标接收端的同时，以避免对邻小区的干扰。例如，请结合图1进行理解，当前接入点获取信道信息的过程可以为：第一接入点(如AP1)发送空数据分组通知(null data packet announcement，NDPA)和空数据分组(null data packet，NDP)，该NDP用于第一站点和第二站点获取其与第一接入点的信道信息；第二接入点(如AP2)发送NDP，该NDP用于第一站点和第二站点获取其与第二接入点的信道信息。然后第一站点和第二站点分别将信道状态通过对应的波束成型报告(beamforming report，BF Report)反馈给第一接入点和第二接入点。
在当前的信道探测过程中，以波束成型报告的形式来获取信道状态，信息传输开销大。
发明内容
本申请实施例提供了一种数据传输的方法及相关装置，该方法可应用于一种通信系统，该通信系统包括接入控制器(或者主接入点)，多个接入点及多个接入点中每个接入点所关联的站点，其中，接入控制器(或者主接入点)可以与多个接入点有线连接，以减少空口开销，接入控制器可以通过获取到的历史信息来确定哪些链路之间的干扰小于阈值，从而对这些链路进行波束配对，以减少用于上报信道状态的传输信息的开销。
第一方面，本申请实施例提供了一种数据传输的方法，包括：
接入控制器(或主接入点)获取历史信息，该历史信息为至少两条链路的链路信息的集合和指示信息的集合，本示例中的链路为接入点与站点之间的链路，该链路信息用于指示在链路上传输的无线帧的发送方，无线帧的接收方，及无线帧的传输时间区间，其中，该传输时间区间可以以传输无线帧的起始时刻，结束时刻来指示，或者，该传输时间也可以以传输无线帧的起始时刻，数据长度来指示，该指示信息用于指示接收方是否成功接收到链路上传输的无线帧，至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间，即至少两条链路中的每个链路上的无线帧的传输时间区间可以是部分重叠，也可以是全部重叠；接入控制器可以根据接收的历史信息，即根据至少两条链路 的链路信息的集合和指示信息的集合确定目标链路组，目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路；接入控制器(或者主接入点)可以通过该链路信息的集合和指示信息的集合可以确定，在相同的时间段内，哪些链路中的站点没有成功接收到接入点发送的无线帧，即这些链路中，站点接收接入点发送无线帧的过程中被其他接入点发送的无线帧所干扰；哪些链路中的站点成功接收到接入点发送的无线帧，即这些链路中，站点接收接入点发送无线帧的过程中没有被其他接入点发送的无线帧所干扰，相比于传统方法，链路信息和指示信息的反馈量相比于波束成形报告大幅度降低，极大的减少了用于检测信道的信息开销。
在一种可能实现的方式中，接入控制器确定出哪些目标链路为进行配对的波束后，可以调度目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据；在历史信息中，目标链路中的发送方采用的预编码矩阵在发送无线帧时，各个目标链路之间的干扰小于阈值，因此，在当前时刻或未来时间，接入控制器可以调度目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
在一种可能实现的方式中，当传输下行数据时，即发送方为接入点，接收方为站点时，接入控制器可以调度链路组中每个目标链路的接入点，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的站点发送数据。
在一种可能实现的方式中，当传输上行数据时，即发送方为站点，接收方为接入点时，
接入控制器可以调度链路组中每个目标链路中的接入点，在相同的时间区间内，触发各自链路中的站点采用传输时间区间对应的预编码矩阵向接入点发送数据。
在一种可能实现的方式中，当传输下行数据时，发送方为接入点，接收方为站点，指示信息用于指示当接入点向对应的站点发送数据时，接入点是否成功接收到站点反馈的确认信息。
在一种可能实现的方式中，当传输上行数据时，发送方为站点，接收方为接入点，接入控制器调度接入点向站点发送触发帧，触发帧用于指示站点向接入点发送数据；接收接入点发送的指示信息，该指示信息用于指示接入点是否成功接收到站点发送的数据。
第二方面，本发明实施例提供了一种接入控制器侧的数据传输装置，具有实现上述方法中实际中接入控制器所执行的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
具体的，该接入控制器的数据传输装置包括：
获取模块，用于获取至少两条链路的链路信息的集合和指示信息的集合，链路信息用于指示在链路上传输的无线帧的发送方，无线帧的接收方，及无线帧的传输时间区间；指示信息用于指示接收方是否成功接收到链路上传输的无线帧，至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；确定模块，用于根据获取模块获取的至少两条链路的链路信息的集合和指示信息的集合确定目标链路组，目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路。
在一种可能的实现方式中，接入控制器的数据传输装置还包括调度模块；
调度模块，用于调度确定模块确定的目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
在一种可能的实现方式中，当发送方为接入点，接收方为站点时，调度目标链路组中的每个目标链路的发送方，在相同的时间区间内，调度模块，还用于调度目标链路组中每个目标链路的接入点，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的站点发送数据。
在一种可能的实现方式中，当发送方为站点，接收方为接入点时，调度模块，还用于调度目标链路组中每个目标链路中的接入点，在相同的时间区间内，触发各自链路中的站点采用传输时间区间对应的预编码矩阵向接入点发送数据。
第三方面，本申请实施例提供了一种计算机存储介质，用于储存上述接入控制器所用的计算机软件指令，其包含用于执行上述第一方面所设计的程序。
第四方面，本申请实施例提供了一种接入控制器侧的数据传输装置，包括存储器，收发器和处理器。其中存储器用于存储计算机可执行程序代码，并与收发器耦合。该程序代码包括指令，当该处理器执行该指令时，该指令使该接入控制器执行上述方法中所涉及的信息或者指令。
又一方面，本申请实施例提供一种处理器，该处理器用于与存储器耦合，可以执行指令以实现前述方面中接入控制器所涉及的方法和功能，存储器可以独立于该处理器，该存储器也可以设置于该处理器中。
第五方面，本申请实施例中提供了一种数据传输的方法，包括：
接入点生成链路信息和指示信息，该链路信息用于指示在链路上传输无线帧的发送方，无线帧的接收方，无线帧的传输时间区间的信息，指示信息用于指示接收方是否成功接收到发送方传输的无线帧；本申请实施例中的接入点向接入控制器发送链路信息和指示信息，该链路信息和指示信息用于接入控制器确定目标链路组，目标链路组包括至少两条目标链路，目标链路组包括：指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路，目标链路组中每个目标链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间，即目标链路组可以进行波束成形配对，且波束之间的干扰小于阈值。
在一种可能实现的方式中，接入点向站点发送第一无线帧，指示信息用于指示站点是否成功接收到接入点发送的第一无线帧，若该指示信息指示站点成功接收到接入点发送的第一无线帧，则可以理解为：在站点在接收第一无线帧的过程中，没有受到其他接入点(该站点的非关联接入点)发送的无线帧的干扰；若该指示信息指示站点未成功接收到接入点发送的第一无线帧，则可以理解为：在站点在接收第一无线帧的过程中，受到了其他接入点(该站点的非关联的接入点)发送的无线帧的干扰。
在一种可能实现的方式中，接入点向站点发送触发帧，该触发帧用于触发站点向接入点发送第二无线帧；指示信息用于指示接入点是否成功接收到站点发送的第二无线帧；若指示信息指示接入点成功接收到站点发送的第二无线帧，可以理解为，接入点在接收站点发送的第二无线帧的过程中，没有受到其他非关联的站点发送的无线帧的干扰；若指示信息指示接入点未成功接收到站点发送的第二无线帧，可以理解为，接入点在接收站点发送 的第二无线帧的过程中，受到了其他非关联的站点发送的无线帧的干扰。
第六方面，本申请实施例提供了一种计算机存储介质，用于储存上述接入点所用的计算机软件指令，其包含用于执行上述第五方面所设计的程序。
第七方面，本申请实施例提供了一种接入点侧的数据传输装置，具有实现上述方法中实际中接入点所执行的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
具体的，该数据传输装置包括：
生成模块，用于生成链路信息和指示信息，链路信息用于指示在链路上传输无线帧的发送方，无线帧的接收方，无线帧的传输时间区间的信息，指示信息用于指示接收方是否成功接收到发送方传输的无线帧；第一发送模块，用于向接入控制器发送生成模块生成的链路信息，链路信息用于接入控制器根据链路信息确定目标链路组，目标链路组包括至少两条目标链路，目标链路组包括：指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路，目标链路组中每个目标链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间。
在一种可能的实现方式中，发送模块，还用于向站点发送第一无线帧，指示信息用于指示站点是否成功接收到接入点发送的第一无线帧。
在一种可能的实现方式中，发送模块，还用于向站点发送触发帧，触发帧用于触发站点向接入点发送第二无线帧；指示信息用于指示接入点是否成功接收到站点发送的第二无线帧。
第八方面，本申请实施例中的接入点侧的数据传输装置包括存储器，收发器和处理器。其中存储器用于存储计算机可执行程序代码，并与收发器耦合。该程序代码包括指令，当该处理器执行该指令时，该指令使该接入点执行上述方法中所涉及的信息或者指令。
又一方面，本申请实施例提供一种处理器，该处理器用于与存储器耦合，可以执行指令以实现前述方面中接入点所涉及的方法和功能，存储器可以独立于该处理器，该存储器也可以设置于该处理器中。
第九方面，本申请实施例中提供了一种数据传输的方法，包括：
接入控制器获取历史信息，该历史信息为链路信息的集合和干扰信息的集合，链路信息的集合用于指示链路集合；链路信息的集合中的一个链路信息包括在链路上传输的无线帧的发送方为第一接入点，无线帧的接收方为第一站点，以及无线帧的传输时间区间，第一站点与第一接入点相关联，链路集合中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；干扰信息用于指示，在无线帧的传输时间区间内，第二站点接收到的无线帧的信号强度大于或者等于阈值，第二站点与第二接入点相关联；接入控制器根据链路信息的集合和干扰信息的集合确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为第二接入点与第二站点之间的链路；该目标链路组中的目标链路为：在历史时间区间内，每个目标链路之间的干扰小于预设门限的链路，即不需要传统方法中的信道检测，也可以根据目标链路组进行波束成型配对，相比于传统方法，链路信息和指示信息的反馈量相比于波束成形报告大幅度降低，极大的减少了用于检测信道 的信息开销。
在一种可能的实现方式中，接入控制器确定出哪些目标链路为进行配对的波束后，调度目标链路组中的每一个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵，向各自目标链路中的接收方发送数据，在历史信息中，目标链路中的发送方采用的预编码矩阵在发送无线帧时，各个目标链路之间的干扰小于阈值，因此，在当前时刻或未来时间，接入控制器可以调度目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
第十方面，本申请实施例提供了一种计算机存储介质，用于储存上述接入控制器所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第十一方面，本申请实施例提供了一种接入控制器侧的数据传输装置，具有实现上述方法中实际中接入控制器所执行的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
具体的，该接入控制器包括：获取模块，用于获取链路信息的集合和干扰信息的集合，链路信息的集合用于指示链路集合；链路信息的集合中的一个链路信息包括在链路上传输的无线帧的发送方为第一接入点，无线帧的接收方为第一站点，以及无线帧的传输时间区间，第一接入点与第一站点相关联，链路集合中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；干扰信息用于指示，在无线帧的传输时间区间内，第二站点接收到的无线帧的信号强度大于或者等于阈值，第二站点与第二接入点相关联；确定模块，用于根据获取模块获取的链路信息的集合和干扰信息的集合确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为第二接入点与第二站点之间的链路。
在一种可能实现的方式中，数据传输装置还包括调度模块；调度模块，用于调度确定模块确定的目标链路组中的每一个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵，向各自目标链路中的接收方发送数据。
第十二方面，接入控制器侧的数据传输装置的结构中包括存储器，收发器和处理器。其中存储器用于存储计算机可执行程序代码，并与收发器耦合。该程序代码包括指令，当该处理器执行该指令时，该指令使该接入控制器执行上述方法中所涉及的信息或者指令。
又一方面，本申请实施例提供一种处理器，该处理器用于与存储器耦合，可以执行指令以实现前述方面中接入控制器所涉及的方法和功能，存储器可以独立于该处理器，该存储器也可以设置于该处理器中。
第十三方面，本申请实施例提供了一种数据传输的方法，包括：
接入点向与站点发送第一无线帧，该站点与该接入点相关联；接入点生成链路信息，链路信息用于指示第一无线帧的发送方为接入点，第一无线帧的接收方为站点，及无线帧的传输时间区间；接入点接收站点发送的干扰信息，干扰信息用于指示站点在接收第一无线帧时，接收到除了接入点之外的其他接入点发送的信号强度大于或者等于阈值的第二无线帧；接入点发送链路信息和干扰信息向接入控制器，链路信息和干扰信息用于接入控制器根据链路信息和干扰信息确定目标链路组，目标链路组为：在链路集合中除了干扰链路 之外的链路，干扰链路为接入点与站点之间的链路。即不需要传统方法中的信道检测，也可以根据目标链路组进行波束成型配对，相比于传统方法，链路信息和干扰信息的反馈量相比于波束成形报告大幅度降低，极大的减少了用于检测信道的信息开销。
第十四方面，本申请实施例提供了一种计算机存储介质，用于储存上述接入点侧的数据传输装置所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第十五方面，本申请实施例提供了一种接入点侧的数据传输装置，具有实现上述方法中实际中接入点所执行的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
具体的，该接入点包括：发送模块，用于向目标站点发送第一无线帧；生成模块，用于生成链路信息，链路信息用于指示第一无线帧的发送方为接入点，第一无线帧的接收方为目标站点，及无线帧的传输时间区间的信息；接收模块，用于接收目标站点发送的干扰信息，干扰信息用于指示站点在接收第一无线帧时，接收到除了目标接入点之外的其他接入点发送的信号强度大于或者等于阈值的第二无线帧；发送模块，还用于发送生成模块生成的链路信息和接收模块接收的干扰信息向接入控制器，链路信息和干扰信息用于接入控制器根据链路信息和干扰信息确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为与目标站点之间的链路。
第十六方面，接入点侧的数据传输装置的结构中包括存储器，收发器和处理器。其中存储器用于存储计算机可执行程序代码，并与收发器耦合。该程序代码包括指令，当该处理器执行该指令时，该指令使接入点执行上述方法中所涉及的信息或者指令。
又一方面，本申请实施例提供一种处理器，该处理器用于与存储器耦合，可以执行指令以实现前述方面中接入点所涉及的方法和功能，该存储器可以独立于该处理器设置，也可以设置于该处理器中。
第十七方面，本申请提供了一种数据传输的方法，包括：
站点接收无线帧；当站点测得无线帧的信号强度大于或者等于阈值时，站点生成干扰信息，干扰信息包括无线帧的接收方，及无线帧的传输时间区间的信息，站点为无线帧的非目标接收方；当该站点测得接收到的无线帧的信号强度大于或者等于阈值时，站点接收的无线帧为与该站点的非关联的接入点发送的，该无线帧为干扰帧；然后，站点将干扰信息向与其关联的接入点发送，以使接入点发送干扰信息，干扰信息用于确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为站点与该站点相关联的接入点之间的链路。
第十八方面，本申请实施例提供了一种计算机存储介质，用于储存上述站点侧的数据传输装置所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第十九方面，本申请实施例提供了一种站点侧的数据传输装置，具有实现上述方法中实际中站点所执行的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
具体的，该站点包括：接收模块，用于接收无线帧；生成模块，用于当测得无线帧的信号强度大于或者等于阈值时，生成干扰信息，干扰信息包括无线帧的接收方，及无线帧 的传输时间区间；发送模块，用于发送生成模块生成的干扰信息向目标接入点，干扰信息用于确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为目标接入点与目标站点之间的链路。
第二十方面，站点的结构中包括存储器，收发器和处理器。其中存储器用于存储计算机可执行程序代码，并与收发器耦合。该程序代码包括指令，当该处理器执行该指令时，该指令使该站点执行上述方法中所涉及的信息或者指令。
又一方面，本申请实施例提供一种处理器，该处理器用于与存储器耦合，可以执行指令以实现前述实施例中站点所涉及的方法和功能，存储器可以独立于该处理器，该存储器也可以设置于该处理器中。
本申请实施例中，接入控制器(或者主接入点)获取多个接入点发送的历史信息，该历史信息可以为链路信息的集合和指示信息的集合，或者，该历史信息也可以为链路信息的集合和干扰信息的集合，该历史信息中包括多个链路的信息，接入控制器(或者主接入点)通过确定该多个链路中哪些链路之间在相同的传输时间区间干扰小于阈值，就将这些相互之间干扰小于阈值的链路确定为目标链路组，可以将目标链路组中的目标链路进行波束成型配对，相对于传统方法，不需要进行信道检测，传输如波束成形报告这样反馈量大的用于确定信道状态的传输信息，本申请实施例中，极大了减少了用于检测信道的信息开销。
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图1为现有技术中获取信道信息的示意图；
图2为本申请实施例中通信系统的一个示例的架构示意图；
图3为本申请实施例中通信系统的另一个示例的架构示意图；
图4为本申请实施例中一种数据传输的方法的一个实施例的步骤流程示意图；
图5为本申请实施例中一种数据传输的方法的另一个实施例的步骤流程示意图；
图6为本申请实施例中一种数据传输的方法的另一个实施例的步骤流程示意图；
图7为本申请实施例中一种接入控制器侧的数据传输装置的一个实施例的结构示意图；
图8为本申请实施例中一种接入点侧的数据传输装置的结构示意图；
图9为本申请实施例中一种站点侧的数据传输装置的实施例的结构示意图；
图10为本申请实施例中一种接入控制器侧的数据传输装置的另一个实施例的结构示意图；
图11为本申请实施例中一种站点侧的数据传输装置的另一个实施例的结构示意图。
具体实施方式
本申请实施例提供了一种数据传输的方法及相关设备，用于减少信道检测的信息开销。
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”、“第三”“第四”等(如果存在)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数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。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，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，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步骤或单元。
本申请实施例中提供了一种数据传输的方法，该方法可以应用于一种通信系统，请参阅图2和图3所示，图2为通信系统的一个示例的架构示意图，图3该通信系统的另一个示例的架构示意图；在图2所示意的架构中，该通信系统包括接入控制器(access controller，AC)201、多个接入点202和多个站点203，接入控制器201与多个接入点202通信连接，接入点和站点的数量并不限定，本申请实施例中接入点的数量和站点的数量并不限定，可以为2个，也可以更多。本申请实施例中，该接入点的数量以3个为例进行说明，站点的数量也以3个为例进行说明，其中，多个接入点202包括第一接入点(AP1)2021、第二接入点(AP2)2022、第三接入点(AP3)2023，多个站点203包括第一站点(STA1)2031、第二站点(STA1)2032和第三站点(STA3)2033，第一站点与第一接入点相关联，即第一站点为接入点的小区范围内的一个站点，第二站点与第二接入点相关联，第三站点和第三接入点相关联。
在图3所示意的架构与图2示意的架构不同之处在于，在图3的架构中，接入控制器的功能可以由多个接入点中的一个接入点来实现，该接入点为主接入点(主AP)，该主接入点可以为接入控制器指定的接入点，也可以是成立接入点协作传输的发起方，也可以是首次通过竞争信道获取传输机会的接入点，本申请实施例中，主AP的具体选取方式不限定。
图3中所示意的通信架构中，该通信系统包括：第一接入点(AP1)301，第二接入点(AP2)302、第三接入点(AP3)303，第一站点(STA1)304、第二站点(STA1)305和第三站点(STA3)305，其中，第一接入点(AP1)301为主接入点，该主接入点用于执行图2中接入控制器所执行的功能，第一站点304与第一接入点301相关联，即第一站点304为第一接入点301小区内的站点，第二站点305与第二接入点302相关联，即第二站点305为第二接入点302小区内的站点，第三站点305和第三接入点303相关联，即第三站点305为第三接入点303小区内的站点。需要说明的是，与一个接入点相关联的站点的数量并不限定，本申请实施例中，只是为了方便说明，以每个接入点关联的站点的数量为1个进行示例性说明。
本申请实施例中的通信系统以图2示意的架构为例进行说明，在实际应用中，通信系统的具体部署架构可以为图2或图3中的架构，具体的并不限定。
本申请实施例中的接入点可以包括但不限定于：通信服务器、路由器、交换机、网桥、计算机、手机、车载通信设备，中继通信模块，基站等等。站点可以包括但不限定于：手机、计算机、车载终端、掌上电脑(Personal Digital Assistant，PDA)等等。本申请实施例中，接入点可以以路由器为例，站点可以为手机为例进行说明。
本申请的一个实施例中，接入控制器获取至少两条链路的链路信息的集合和指示信息的集合，至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间。
该链路信息的集合和干扰信息的集合为该接入控制接收到的历史信息，其中链路信息 可以用于指示在链路上传输的无线帧的发送方，无线帧的接收方，及无线帧的传输时间区间的信息中的至少一种；指示信息可以用于指示接收方是否成功接收到链路上传输的无线帧，该接收方是否成功接收到链路上传输的无线帧可以理解为：接收方正确解析中无线帧中的发送方的地址，接收方的地址，时间戳，数据长度等信息；接入控制器可以根据接收到的历史信息确定出目标链路组，该目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路。接入控制器根据接收到的多个接入点发送的历史信息完成波束成型的配对，即不需要进行信道检测，可以确定在相同的时间段内，相互之间干扰小于预设门限的多个目标链路(即波束)，可以以较小的信息反馈量完成波束成型配对。下面分实施例对本申请进行详细描述。
请参阅图4所示，本申请实施例中提供了一种数据传输的方法的一个实施例：
本示例中，无线帧的发送方为接入点，无线帧的接收方为站点。
步骤401、接入点向站点发送无线帧。
其中，第一接入点向第一站点发送第一无线帧；第二接入点向第二站点发送第二无线帧；第三接入点向第三站点发送第三无线帧。
步骤402、接入点生成链路信息，该链路信息用于指示链路上传输的无线帧的发送方，无线帧的接收方，及无线帧的传输时间区间。
该链路信息的格式如下表1所示：
表1
类别 发送地址 接收地址 时间戳 数据长度 帧检测序列
该链路信息中包括发送地址，接收地址，时间戳，数据长度，帧检测序列(frame check sequence，FCS)，发送地址可以指示无线帧的发送方(如，第一接入点的地址)，接收地址指示无线帧的接收方(如，第一站点的地址)，时间戳可以指示第一接入点向第一站点发送该无线帧的发送时刻，数据长度指示无线帧的长度，帧检测序列用于接收方判断该帧是否发生了错误。其中，该通过该时间戳和数据长度指示该第一无线帧的传输时间区间的信息。例如，该时间戳为2018年01月01日08时00分00秒(如以“t0”表示)，通过发送无线帧的起始时刻t0和数据长度确定结束时刻t1，该t0和t1可以表示无线帧传输时间区间(即t1-t0)。
需要说明的是，上述表1中的链路信息仅为举例说明，并不造成对本申请的限定性说明。例如，在另一种实现方式中，该时间戳可以包括第一时间戳和第二时间戳，该第一时间戳可以指示发送无线帧的起始时刻t0，第二时间戳可以指示发送无线帧的结束时刻t1。直接通过t0和t1可以表示无线帧的传输时间区间(即t1-t0)。在另一种实现方式中，该链路信息可以包括发送地址，接收地址，时间戳和传输数据时长，时间戳指示传输无线帧的起始时刻t0，通过该时间戳和传输数据时长可以指示无线帧的传输时间区间(即t1-t0)。
本示例中，第一接入点生成第一链路信息，第二接入点生成第二链路信息,第三接入点生成第三链路信息。
步骤403、接入点向接入控制器发送链路信息。
具体的，第一接入点向接入控制器发送第一链路信息，第二接入点向接入控制器发送第二链路信息，第三接入点向接入控制器发送第三链路信息。
步骤404、站点接收无线帧，若站点成功接收到该无线帧，则向接入点反馈成功接收到无线帧的确认信息(如ACK确认帧)，若站点未成功接收到无线帧，则不反馈ACK，或者反馈非确认帧(No ACK，NACK)。
其中，第一站点接收第一无线帧，若第一站点成功接收到该无线帧，则向第一接入点反馈成功接收到第一无线帧的确认信息(如ACK确认帧)，若第一站点未成功接收到第一无线帧，则不反馈ACK，或者反馈NACK。
可以理解，第二站点与第二接入点的交互，第三站点与第三接入点的交互可以结合第一站点与第一接入点进行理解，此处不赘述。
需要说明的是，步骤404可以在步骤402之前，也可以与步骤402同时进行，步骤404的时序本实例中并不限定。
步骤405、接入点生成指示信息，指示信息用于指示接收方是否成功接收到链路上传输的无线帧。具体的，第一接入点生成第一指示信息，第一指示信息用于指示第一站点接收无线帧的情况，即第一站点是否成功接收到第一接入点发送的无线帧。
步骤406、接入点向接入控制器发送指示信息。
具体的，第一接入点向接入控制器发送第一指示信息，第二接入点向接入控制器发送第二指示信息，第三接入点向接入控制器发送第三指示信息。
本示例中，接入点分别将链路信息和指示信息向接入控制器发送，在另一种实现方式中，在步骤403中的链路信息和步骤406中的指示信息可以一起向接入控制器发送，即可以不执行步骤403，在步骤406中，接入点向接入控制器发送反馈信息。该反馈信息包括链路信息和指示信息，该反馈信息的格式如下表2所示：
表2
类别 发送地址 接收地址 时间戳 数据长度 ACK正确接收 帧检测序列
步骤407、接入控制器接收多个接入点发送的链路信息的集合和指示信息的集合，并存储链路信息的集合和干扰信息的集合。
该链路信息的集合和指示信息的集合为接入控制器获取的多个接入点发送的历史信息。
具体的，链路信息的集合包括第一接入点发送的第一链路信息，第二接入点发送的第二链路信息和第三接入点发送的第三链路信息，其中，第一链路信息指示第一接入点与第一站点之间的第一链路，第二链路信息指示第二接入点与第二站点之间的第二链路；第三链路信息指示第三接入点与第三站点之间的第三链路。
例如，第一链路信息中的时间戳和数据长度指示的传输第一无线帧的传输时间区间为第1时刻至第5时刻；第二链路信息中的时间戳和数据长度指示的传输第二无线帧的传输时间区间为第2时刻至第5时刻；第三链路信息中的时间戳和数据长度指示的传输第三无线帧的传输时间区间为第2时刻至第4时刻，即三个链路的每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间，该目标时间区间可以为部分重叠的时间区间，本 示例中，部分重叠的目标时间区间为第2时刻至第4时刻；本示例中目标时间区间也可以为全部的时间区间，在另一个例子中，第一无线帧的传输时间区间为第1时刻至第5时刻，第二无线帧的传输时间区间为第1时刻至第5时刻，第三无线帧的传输时间区间为第1时刻至第5时刻，则该目标时间区间为全部重叠的时间区间。需要说明的是，本示例中，传输时间区间均为举例说明，并不造成对本申请的限定性说明。
指示信息的集合包括第一指示信息，第二指示信息和第三指示信息。例如，第一指示信息指示第一站点成功接收到第一接入点发送的第一无线帧，即该第一指示信息指示成功接收到第一站点反馈的ACK。第二指示信息指示第二站点未成功接收到第二接入点发送的第二无线帧，即第二指示信息指示没有成功接收到第二站点反馈的ACK。第三指示信息指示第三站点成功接收到第三接入点发送的第三无线帧，即第三指示信息指示成功接收到第三站点反馈的ACK。
步骤408、接入控制器根据至少两条链路的链路信息的集合和指示信息的集合确定目标链路组，目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路。
第二指示信息指示第二站点未成功接收到第二接入点发送的第二无线帧，表明第二站点在接收第二无线帧的过程中受到了其他接入点(第一接入点和/或第三接入点)发送的无线帧的干扰，接入控制器将第二链路(即第二接入点和第二站点之间的链路)记入黑名单。
第一干扰信息指示第一站点成功接收第一接入点发送的第一无线帧，第三干扰信息指示第三站点成功接收到第三接入点发送的第三无线帧，接入控制器将第一链路(即第一接入点与第一站点之间的链路)和第三链路(即第三接入点和第三站点之间的链路)记入白名单。
其中，白名单用于记录目标链路组，该白名单中记录的目标链路组中所包括的目标链路为站点成功接收到发送方发送的无线帧的链路。
黑名单用于记录干扰链路，即站点未成功接收到接入点发送的无线帧的链路。
需要说明的是，为了方便说明，本实例中只列举了三个链路进行示例性说明，在实际应用中，白名单和黑名单中记录的链路的数量并不限定。
本实例中，接入控制器(或者主接入点)获取至少两个接入点发送的历史信息，该历史信息为链路信息的集合和指示信息的集合，链路信息指示的链路可以为下行链路，接入控制器(或者主接入点)可以通过该链路信息的集合和指示信息的集合可以确定，在相同的时间段内，哪些链路中的站点没有成功接收到接入点发送的无线帧，即这些链路中，站点接收接入点发送无线帧的过程中被其他接入点发送的无线帧所干扰；哪些链路中的站点成功接收到接入点发送的无线帧，即这些链路中，站点接收接入点发送无线帧的过程中没有被其他接入点发送的无线帧所干扰，相比于传统方法，链路信息和指示信息的反馈量相比于波束成形报告大幅度降低，极大的减少了用于检测信道的信息开销。
步骤409、接入控制器调度目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
具体的，接入控制器调度目标链路中的发送方，指示发送方传输无线帧的时间戳，例 如，在第一链路信息中包括第一时间戳，在第三链路信息中包括第三时间戳，接入控制器发送联合触发帧，该联合触发帧用于触发第一接入点和第一站点之间，第三接入点和第三站点之间的联合传输。
步骤410、第一接入点采用第一时间戳对应的预编码矩阵向第一站点发送无线帧，第三接入点采用第三时间戳对应的预编码矩阵向第三站点发送无线帧。
本实例中，在历史信息中，第一链路上传输的第一无线帧与第三链路上传输的第三无线帧之间未产生干扰，因此，在当前时刻或未来时刻，接入控制器可以调度第一接入点采用第一时间戳对应的预编码矩阵向第一站点发送无线帧，第三接入点采用第三时间戳对应的预编码矩阵向第三站点发送无线帧，其中，第一接入点与第一站点之间传输数据的第一时间区间，与，第三接入点与第三站点之间传输数据的第三时间区间具有相重叠的目标时间区间，例如，第一时间区间为：第1时刻至第5时刻，第三时间区间为：第1时刻至第4时刻，目标时间区间为：第1时刻至第4时刻。
请参阅图5所示，本申请实施例中提供了一种数据传输的方法的另一个实施例：
本实施例与图4对应的实施例的区别在于，无线帧的发送方为站点，无线帧的接收方为接入点，通过上行数据的传输确定目标链路组。
接入控制器联合调度多个接入点，多个接入点中的每个接入点向各自关联的站点发送触发帧，该触发帧用于指示各站点向对应的接入点发送无线帧。
步骤501、接入点向站点发送触发帧。
具体的，第一接入点向第一站点发送触发帧，第二接入点向第二站点发送触发帧，第三接入点向第三站点发送触发帧。
步骤502、站点根据触发帧向接入点发送上行无线帧。
具体的，第一站点向第一接入点发送第一无线帧，第二站点向第二接入点发送第二无线帧，第三站点向第三接入点发送第三无线帧。
步骤503、接入点根据是否成功接收到站点发送的无线帧的情况生成反馈信息，该反馈信息包括链路信息和指示信息。该反馈信息的格式可以如下表3所示：
表3
类别 发送地址 接收地址 时间戳 数据长度 正确接收 帧检测序列
例如，若第一接入点成功接收到第一站点发送的第一无线帧，则生成第一反馈信息，其中，在第一反馈信息中，“发送地址”的比特位为第一站点的地址，“接收地址”的比特位为第一接收方的地址，“正确接收”的比特位为“1”，“1”指示正确接收到第一站点发送的数据。若第二接入点未成功接收到第二站点发送的第二无线帧，则生成第二反馈信息，在第二反馈信息中，“发送地址”、“接收地址”、“数据长度”，均采取单独的比特指示，即该单独的比特指示为“无法识别”，“时间戳”可以指示接入点生成该反馈信息的时刻，“正确接收”的比特位为“0”，即表示第二接入点未成功接收到无线帧。第三接入点成功接收到第三站点发送的第三无线帧，则生成第三反馈信息，在第三反馈信息中，“发送地址”的比特位为第三站点的地址，“接收地址”的比特位为第三接收方的地址，“正确接收”的比特位为“1”。
步骤504、接入点向接入控制器发送反馈信息。
具体的，第一接入点向控制器发送第一反馈信息，第二接入点向控制器发送第二反馈信息，第二接入点向控制器发送第三反馈信息。
步骤505、接入控制器接收多个接入点发送的反馈信息的集合，该反馈信息的集合包括链路信息的集合和指示信息的集合，并存储该链路信息的集合和干扰信息的集合。
请结合步骤407进行理解，此处不赘述。
步骤506、接入控制器根据至少两条链路的链路信息的集合和指示信息的集合确定目标链路组，目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路。
第二反馈信息指示第二接入点未成功接收到第二站点发送的第二无线帧，表明第二接入点在接收第二无线帧的过程中受到了其他站点(第一站点和/或第三站点)发送的无线帧的干扰，接入控制器将第二链路(即第二接入点和第二站点之间的链路)记入黑名单。
第一反馈信息指示第一接入点成功接收第一站点发送的第一无线帧，第三反馈信息指示第三接入点成功接收到第三站点发送的第三无线帧，接入控制器将第一链路(即第一接入点与第一站点之间的链路)和第三链路(即第三接入点和第三站点之间的链路)记入白名单。
其中，白名单用于记录目标链路组，该白名单中记录的目标链路组中所包括的目标链路为接入点成功接收到站点发送的无线帧的链路。
黑名单用于记录干扰链路，即接入点未成功接收到站点发送的无线帧的链路。
步骤507、接入控制器调度目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
例如目标链路为第一链路和第三链路。接入控制器调度第一接入点向第一站点发送触发帧，第三接入点向第三站点发送触发帧；第一站点根据第一接入点发送的触发帧向第一接入点发送无线帧，第三站点根据第三接入点发送的触发帧向第三接入点发送无线帧。
接入控制器调度目标链路中的发送方，指示发送方传输无线帧的时间戳，例如，在第一反馈信息中包括第一时间戳，在第三反馈信息中包括第三时间戳。
步骤508、第一接入点向第一站点发送联合触发帧，第三接入点向第三站点发送联合触发帧，该联合触发帧用于触发第一站点和第一接入点之间，第三站点和第三接入点之间的联合传输。
步骤509、第一站点采用第一时间戳对应的第一预编码矩阵向第一接入点发送无线帧，第三站点采用第三时间戳对应的第三预编码矩阵向第三接入点发送无线帧。
第一接收点采用与该第一预编码矩阵对应的接收均衡矩阵接收第一站点发送的无线帧，第三接收点采用与该第三预编码矩阵对应的接收均衡矩阵接收第三站点发送的无线帧。
本实例中，接入控制器(或者主接入点)获取至少两个接入点发送的历史信息，该历史信息为链路信息的集合和指示信息的集合，链路信息指示的链路可以为上行链路，接入控制器(或者主接入点)可以通过该链路信息的集合和指示信息的集合可以确定，在相同的时间段内，哪些链路中的接入点没有成功接收到站点发送的无线帧，即这些链路中，接 入点接收站点发送无线帧的过程中被其他站点发送的无线帧所干扰；哪些链路中的接入点成功接收到站点发送的无线帧，即这些链路中，接入点接收站点发送无线帧的过程中没有被其他站点发送的无线帧所干扰，相比于传统方法，链路信息和指示信息的反馈量相比于波束成形报告大幅度降低，极大的减少了用于检测信道的信息开销。
请参阅图6所示，本申请实施例中提供了一种数据传输的方法的另一个实施例：
步骤601、接入点向其小区的站点发送无线帧；
具体的，第一接入点向第一站点发送第一无线帧，第二接入点向第二站点发送第二无线帧，第三接入点向第三站点发送第三无线帧。
步骤602、接入点生成链路信息。
该链路信息的格式如表1所示，此处不赘述。
具体的，第一接入点生成第一链路信息，第一链路信息用于指示第一无线帧的发送方为第一接入点，第一无线帧的接收方为第一站点，及无线帧的第一传输时间区间；第二接入点生成第二链路信息，第二链路信息用于指示第二无线帧的发送方为第二接入点，第二无线帧的接收方为第二站点，及无线帧的第二传输时间区间；第三接入点生成第三链路信息，第三链路信息用于指示第三无线帧的发送方为第三接入点，第三无线帧的接收方为第三站点，及无线帧的第三传输时间区间。
步骤603、接入点向接入控制器发送链路信息。具体的，第一接入点向接入控制器发送第一链路信息，第二接入点向接入控制器发送第二链路信息，第三接入点向接入控制器发送第三链路信息。
步骤604、接入控制器接收多个接入点发送的链路信息的集合。
具体的，该链路信息的集合包括第一链路信息，第二链路信息和第三链路信息。该链路信息的集合用于指示链路的集合，第一链路信息指示第一链路，该第一链路为第一接入点与第一站点之间的链路；第二链路信息指示第二链路，该第二链路为第二接入点与第二站点之间的链路；第三链路信息指示第三链路，该第三链路为第三接入点与第三站点之间的链路。
步骤605、站点接收无线帧。
第一站点接收第一接入点发送的第一无线帧，第二站点接收第二接入点发送的第二无线帧，第三站点接收第三接入点发送的第三无线帧。
其中一个站点可能接收到了除了与其关联的接入点发送的无线帧外，还接收到了其他接入点发送的无线帧。例如，第二站点除了接收到第二无线帧外，还接收到第一接入点发送的第一无线帧，或者接收到第三接入点发送的第三无线帧，第二站点检测接收到的第一无线帧(或第三无线帧)信号强度指示(Receive Signal Strength Indicator，RSSI)大于或者等于阈值，表明接收到的第一无线帧(或者第三无线帧)对第二站点造成了干扰。
需要说明的是，步骤605也可以在步骤603之前，也可以与步骤603同时执行，具体的时序不限定。
步骤606、第二站点生成干扰信息，该干扰信息用于指示在无线帧的传输时间区间内，若第二站点测得第一无线帧(或者第三无线帧)的接收信号强度指示(Receive Signal  Strength Indicator，RSSI)大于预定门限值。
该干扰信息的格式如下表4所示：
表4
类别 发送地址 接收地址 时间戳 数据长度 RSSI值 帧检测序列
第二站点接收到除了第二无线帧之外的干扰无线帧(即第一无线帧或者第三无线帧)，第二站点当无法识别发送地址，在干扰信息中，“发送地址”可以采用特殊值进行指示，例如，可以指示发送地址为广播地址，或者采取单独的比特指示无法识别发送地址。
“接收地址”为第二站点的地址，“时间戳”和“数据长度”用于指示第二站点接收到干扰帧的传输时间区间，RSSI值可以为第二站点测得的具体的数值，需要说明的是，该干扰信息的格式中，也可以不包括RSSI值，只要第二站点生成该干扰信息，则表明第二站点测的干扰帧的RSSI的值大于或者等于阈值。
步骤607、第二站点向与其关联的第二接入点发送该干扰信息。
步骤608、第二接入点接收到该第二站点发送的干扰信息，并将该干扰信息向接入控制器发送。
需要说明的是，步骤606-步骤608为可选步骤，也可以不执行，即所有的站点都没有接收到干扰帧。
步骤609、接入控制器存储接收到多个接入点发送的链路信息的集合和干扰信息的集合并存储。
该干扰信息的集合包括第二接入点发送的干扰信息，需要说明的是，在实际应用中，该干扰信息的集合可以为空集，即所有的站点都没有接收到干扰信息。
在实际应用中，该链路信息的集合可以包括多个链路信息，例如，在本示例中，该链路信息的集合中包括第一链路信息，第二链路信息和第三链路信息，该干扰信息的集合包括第二接入点发送的干扰信息，需要说明的是，本示例中，该链路信息的集合和干扰信息的集合均为了方便说明而举的例子，并不造成对本申请的限定性说明。
步骤610、接入控制器根据链路信息的集合和干扰信息的集合确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为第二接入点与第二站点之间的链路。
该链路信息的集合用于指示链路的集合，链路集合中的第一链路信息中的第一传输时间区间，第二链路中的第二传输时间区间和第三链路的第一传输时间区间具有相重叠的目标时间区间，例如第一传输时间区间，与，第三接入点与第三站点之间传输数据的第三传输时间区间具有交集，例如，第一时间区间为：第1时刻至第5时刻，第二时间区间为第2时刻至第4时刻，第三时间区间为：第1时刻至第4时刻，目标时间区间为第2时刻至第4时刻。
可以理解的是，第二站点接收到干扰帧(第一接入点发送的第一无线帧或者第三接入点发送的第三无线帧)，表明第二站点受到了其他接入点发送的无线帧的干扰，该干扰帧可能是第一接入点发送的第一无线帧，也可能是第三接入点发送的第三无线帧，因此，在相同的时间段内，若接入控制器联合调度第一接入点和第二接入点，第一接入点发送的第一 无线帧可能对第二站点造成干扰，若接入控制控制器联合调度第三接入点和第二接入点，第三接入点发送的第三无线帧也可能对第二站点造成干扰。接入控制器将干扰链路(本示例中，为第二接入点和第二站点之间的链路)记入黑名单，干扰链路为接收到干扰帧的站点与该站点关联的接入点之间的链路。
接入控制器将链路集合中除了干扰链路之外的链路记入白名单，该白名单中记录的链路为目标链路，该白名单中的每个目标链路的无线帧的传输时间区间具有相重叠的部分。
步骤611、接入控制器调度目标链路组中的每一个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵，向各自目标链路中的接收方发送数据。
接入控制器调度目标链路中的发送方，指示发送方传输无线帧的时间戳，例如，在第一链路信息中包括第一时间戳，在第三链路信息中包括第三时间戳，接入控制器发送联合触发帧，该联合触发帧用于触发第一接入点和第一站点之间，第三接入点和第三站点之间的联合传输。
步骤612、第一接入点采用第一时间戳对应的预编码矩阵向第一站点发送无线帧，第三接入点采用第三时间戳对应的预编码矩阵向第三站点发送无线帧。
本示例中，接入控制器(或主接入点)存储历史信息，该历史信息为获取的链路信息的集合和干扰信息的集合，每个链路信息用于指示一个链路，链路信息的集合用于指示链路集合；链路信息的集合中的一个链路信息包括在链路上传输的无线帧的发送方为第一接入点，无线帧的接收方为第一站点，以及无线帧的传输时间区间，第一接入点与第一站点相关联，即第一站点为第一接入点的小区内的一个站点，链路集合中每个链路上传输的无线帧的传输时间区间相重叠；干扰信息用于指示，在无线帧的传输时间区间内，第二站点接收到的无线帧的信号强度大于或者等于阈值，第二站点与第二接入点相关联，即第二站点为第二接入点小区内的一个站点；则接入控制器(或者主接入点)可以根据链路信息的集合和干扰信息的集合确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为第二接入点与第二站点之间的链路。该目标链路组中的目标链路为：在历史时间区间内，每个目标链路之间的干扰小于预设门限的链路，即不需要传统方法中的信道检测，也可以根据目标链路组进行波束成型配对，相比于传统方法，链路信息和指示信息的反馈量相比于波束成形报告大幅度降低，极大的减少了用于检测信道的信息开销。
需要说明的是，本申请实施例中，接入控制器与第一接入点、第二接入点、第三接入点可以采用有线连接，以节省空口开销。
本申请还提供了另一个实施例，该实施例可以包括图4对应的方法和图6对应的方法。
需要说明的是，本申请实施例中的“A和/或B”包括3种方案：1、A；2、B；3、A和B。
在本实施例中，接入控制器(或者主接入点)获取多个接入点发送的历史信息，该历史信息可以包括链路信息的集合和干扰信息的集合(获取的具体步骤可以参阅图4对应的方法实施例中的步骤401至步骤406)，和/或，链路信息的集合和干扰信息的集合(获取的具体步骤可以参阅图6对应的方法实施例中的步骤601-步骤608)，其中，接入控制器(或者主接入点)可以根据历史信息确定白名单中记入的目标链路组，和/或，黑名单中记入的 干扰链路。目标链路组中包括的目标链路为：“接入点成功接收到与之关联的站点发送的无线帧的链路”和/或，“站点均未接收到非关联的接入点发送的无线帧的链路，或者站点接收到非关联的接入点发送的无线帧的信号强度小于阈值的链路”，目标链路组中的目标链路的传输时间区间具有相重叠的目标时间区间。黑名单中记入的干扰链路为：接入点未成功接收到与之关联的站点发送的无线帧的链路，和/或，链路中的站点接收到非关联的接入点发送的无线帧的信号强度大于或者等于阈值的链路。
本实施例中，接入控制器(或者主接入点)获取多个接入点发送的历史信息，该历史信息可以为链路信息的集合和指示信息的集合，和/或，该历史信息也可以为链路信息的集合和干扰信息的集合，该历史信息中包括多个链路的信息，接入控制器(或者主接入点)通过确定该多个链路中哪些链路之间在相同的传输时间区间干扰小于阈值，就将这些相互之间干扰小于阈值的链路确定为目标链路组，可以将目标链路组中的目标链路进行波束成型配对，相对于传统方法，不需要进行信道检测，传输如波束成形报告这样反馈量大的用于确定信道状态的传输信息，本申请实施例中，极大了减少了用于检测信道的信息开销。
请参阅图7所示，图7为一种接入控制器侧的数据传输装置的结构示意图，本申请实施例中提供了一种接入控制器侧的数据传输装置700的一个实施例：
该图7中的结构也可以为主接入点的结构，图7中接入控制器侧的数据传输装置用于执行图4、图5和图6对应的方法实施例中接入控制器(或者主接入点)所执行的方法步骤。
具体的，该接入控制器侧的数据传输装置，可以包括：
获取模块701，用于获取至少两条链路的链路信息的集合和指示信息的集合，链路信息用于指示在链路上传输的无线帧的发送方，无线帧的接收方，及无线帧的传输时间区间的信息；指示信息用于指示接收方是否成功接收到链路上传输的无线帧，至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；
确定模块702，用于根据获取模块701获取的至少两条链路的链路信息的集合和指示信息的集合确定目标链路组，目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路。
在一种可能的实现方式中，接入控制器还包括调度模块703；
调度模块703，用于调度确定模块702确定的目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
在一种可能的实现方式中，当发送方为接入点，接收方为站点时；
调度模块703，还用于调度目标链路组中每个目标链路的接入点，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的站点发送数据。
在一种可能的实现方式中，当发送方为站点，接收方为接入点时；
调度模块703，还用于调度目标链路组中每个目标链路中的接入点，在相同的时间区间内，触发各自链路中的站点采用传输时间区间对应的预编码矩阵向接入点发送数据。
基于图7中的结构，本申请实施例还提供了另一个实施例包括：
获取模块701，用于获取链路信息的集合和干扰信息的集合，链路信息的集合用于指示链路集合；链路信息的集合中的一个链路信息包括在链路上传输的无线帧的发送方为第一接入点，无线帧的接收方为第一站点，以及无线帧的传输时间区间，第一站点与第一接入点相关联，链路集合中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；干扰信息用于指示，在无线帧的传输时间区间内，第二站点接收到的无线帧的信号强度大于或者等于阈值，第二站点与第二接入点相关联；
确定模块702，用于根据获取模块701获取的链路信息的集合和干扰信息的集合确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为第二接入点与第二站点之间的链路。
在一种可能的实现方式中，接入控制器还包括调度模块703；
调度模块703，用于调度确定模块702确定的目标链路组中的每一个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵，向各自目标链路中的接收方发送数据。
请参阅图8所示，图8为一种接入点侧的数据传输装置的结构示意图，本申请实施例中提供了一种接入点侧的数据传输装置800的一个实施例：
图8中接入点侧的数据传输装置用于执行上述方法实施例中接入点所执行的方法步骤。
具体的，该接入点侧的数据传输装置800，可以包括：
生成模块801，用于生成链路信息，链路信息用于指示在链路上传输无线帧的发送方，无线帧的接收方，无线帧的传输时间区间的信息及指示信息，指示信息用于指示接收方是否成功接收到发送方传输的无线帧；
发送模块802，用于向接入控制器发送生成模块801生成的链路信息，链路信息用于接入控制器根据链路信息确定目标链路组，目标链路组包括至少两条目标链路，目标链路组包括：指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路，目标链路组中每个目标链路上传输的无线帧的传输时间区间相重叠。
在一种可能的实现方式中，
发送模块802，还用于向站点发送第一无线帧，指示信息用于指示站点是否成功接收到接入点发送的第一无线帧。
在一种可能的实现方式中，发送模块802，还用于向站点发送触发帧，触发帧用于触发站点向接入点发送第二无线帧；
指示信息用于指示接入点是否成功接收到站点发送的第二无线帧。
基于图8中的结构，本申请实施例还提供了另一个实施例包括：
该接入点侧的数据传输装置还包括接收模块803；
发送模块802，用于向站点发送第一无线帧；
生成模块801，用于生成链路信息，链路信息用于指示第一无线帧的发送方为接入点，第一无线帧的接收方为该站点，及无线帧的传输时间区间的信息；
接收模块803，用于接收站点发送的干扰信息，干扰信息用于指示站点在接收第一无 线帧时，接收到除了该接入点之外的其他接入点发送的信号强度大于或者等于阈值的第二无线帧；
发送模块802，还用于将生成模块801生成的链路信息和接收模块803接收的干扰信息向接入控制器发送，链路信息和干扰信息用于接入控制器根据链路信息和干扰信息确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为与目标站点之间的链路。
请参阅图9所示，图9为一种站点侧的数据传输装置的结构示意图，本申请实施例中提供了一种站点侧的数据传输装置的一个实施例，包括：
接收模块901，用于接收无线帧；
生成模块902，用于当测得接收模块901接收到的无线帧的信号强度大于或者等于阈值时，生成干扰信息，干扰信息包括无线帧的接收方，及无线帧的传输时间区间；
发送模块903，用于发送生成模块902生成的干扰信息，以使接入点发送干扰信息，干扰信息用于确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为与所述接入点之间的链路。
请参阅图10所示，本申请实施例中还提供了一种接入控制器侧的数据传输装置1000的另一个实施例，包括：
图10是本申请实施例提供的接入控制器1000的结构示意图。数据传输装置1000可包括处理器1001、收发器1003、存储器1002。存储器1002可以包括只读存储器和随机存取存储器，并向处理器1001提供指令和数据。存储器1002的一部分还可以包括非易失性随机存取存储器(英文全称：Non-Volatile Random Access Memory，英文缩写：NVRAM)。
存储器1002存储了如下的元素，可执行模块或者数据结构，或者它们的子集，或者它们的扩展集:
操作指令：包括各种操作指令，用于实现各种操作。
操作系统：包括各种系统程序，用于实现各种基础业务以及处理基于硬件的任务。
收发器1003，用于接收至少两条链路的链路信息的集合和指示信息的集合，链路信息用于指示在链路上传输的无线帧的发送方，无线帧的接收方，及无线帧的传输时间区间的信息；指示信息用于指示接收方是否成功接收到链路上传输的无线帧，至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；
处理器1001，用于根据至少两条链路的链路信息的集合和指示信息的集合确定目标链路组，目标链路组包括：至少两条链路中，指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路。
处理器1001，还用于调度目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
处理器1001控制数据传输装置1000的操作，处理器1001还可以称为中央处理单元(英文全称：Central Processing Unit，英文缩写：CPU)。存储器1002可以包括只读存储器和随机存取存储器，并向处理器1001提供指令和数据。存储器1002的一部分还可以包括NVRAM。具体的应用中，数据传输装置1000的各个组件通过总线1004耦合在一起，其中总 线1004除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线1004。
上述本发明实施例揭示的方法可以应用于处理器1001中，或者由处理器1001实现。处理器1001可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1001中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1001可以是通用处理器、数字信号处理器(英文全称：Digital Signal Processing，英文缩写：DSP)、专用集成电路(英文全称：Application Specific Integrated Circuit，英文缩写：ASIC)、现成可编程门阵列(英文全称：Field－Programmable Gate Array，英文缩写：FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1002，处理器1001读取存储器1002中的信息，结合其硬件完成上述图4、图5对应的方法实施例中接入控制器所执行的方法的步骤。
基于图10中的结构，在另一个实施例中，该存储介质位于存储器1002，处理器1001读取存储器1002中的信息，结合其硬件完成上述图6对应的方法实施例中接入控制器所执行的方法的步骤。
具体的，收发器1003，还用于获取链路信息的集合和干扰信息的集合，链路信息的集合用于指示链路集合；链路信息的集合中的一个链路信息包括在链路上传输的无线帧的发送方为第一接入点，无线帧的接收方为第一站点，以及无线帧的传输时间区间，第一站点与第一接入点相关联，链路集合中每个链路上传输的无线帧的传输时间区间相重叠；干扰信息用于指示，在无线帧的传输时间区间内，第二站点接收到的无线帧的信号强度大于或者等于阈值，第二站点与第二接入点相关联；
处理器1001，还用于根据链路信息的集合和干扰信息的集合确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为第二接入点与第二站点之间的链路。
处理器1001，还用于调度目标链路组中的每一个目标链路的发送方，在相同的时间区间内，采用传输时间区间对应的预编码矩阵，向各自目标链路中的接收方发送数据。
该处理器1001，用于使该接入控制器侧的数据传输装置执行图4、图5和图6中对应的方法实施例中接入控制器所实际执行的方法步骤。
基于图10的结构，该存储介质位于存储器1002，处理器1001读取存储器1002中的信息，结合其硬件完成上述图4、图5对应的方法实施例中接入点所执行的方法的步骤。
具体的，处理器1001，用于生成链路信息，链路信息用于指示在链路上传输无线帧的发送方，无线帧的接收方，无线帧的传输时间区间的信息及指示信息，指示信息用于指示接收方是否成功接收到发送方传输的无线帧；
收发器1003，用于向接入控制器发送链路信息，链路信息用于接入控制器根据链路信息确定目标链路组，目标链路组包括至少两条目标链路，目标链路组包括：指示信息均指示接收方成功接收到链路上传输的无线帧的目标链路，目标链路组中每个目标链路上传输的无线帧的传输时间区间相重叠。
在一种可能的实现方式中，收发器1003，还用于向站点发送第一无线帧，指示信息用于指示站点是否成功接收到接入点发送的第一无线帧。
在一种可能的实现方式中，收发器1003，还用于向站点发送触发帧，触发帧用于触发站点向接入点发送第二无线帧；指示信息用于指示接入点是否成功接收到站点发送的第二无线帧。
基于图10中的结构，在另一个实施例中，该存储介质位于存储器1002，处理器1001读取存储器1002中的信息，结合其硬件完成上述图6对应的方法实施例中接入点所执行的方法的步骤。
具体的，收发器1003，用于向目标站点发送第一无线帧；
处理器1001，用于生成链路信息，链路信息用于指示第一无线帧的发送方为接入点，第一无线帧的接收方为目标站点，及无线帧的传输时间区间的信息；
收发器1003，用于接收目标站点发送的干扰信息，干扰信息用于指示站点在接收第一无线帧时，接收到除了目标接入点之外的其他接入点发送的信号强度大于或者等于阈值的第二无线帧；
收发器1003，用于将链路信息和干扰信息向接入控制器发送，链路信息和干扰信息用于接入控制器根据链路信息和干扰信息确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为目标接入点与目标站点之间的链路。
处理器1001还可以称为中央处理单元(英文全称：Central Processing Unit，英文缩写：CPU)。存储器1002可以包括只读存储器和随机存取存储器，并向处理器1001提供指令和数据。存储器1002的一部分还可以包括NVRAM。具体的应用中，接入控制器1000的各个组件通过总线1004耦合在一起，其中总线1004除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线1004。
请结合图11所示，本申请实施例还提供了一种站点侧的数据传输装置的另一个实施例，包括：
站点侧的数据传输装置可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(PCS，Personal Communication Service)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(WLL，Wireless Local Loop)站、个人数字助理(PDA，Personal Digital Assistant)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户 终端(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户装备(User Equipment)。
图11示出的是与本申请实施例提供的站点的部分结构的框图。参考图11包括：收发器1110、存储器1120、输入单元1130、显示单元1140、无线保真(wireless fidelity，WiFi)模块1170、处理器1180等部件。下面结合图11对站点侧的数据传输装置的各个构成部件进行具体的介绍：
收发器1110可用于收发信息或通话过程中，信号的接收和发送。
存储器1120可用于存储软件程序以及模块，处理器1180通过运行存储在存储器1120的软件程序以及模块，从而执行的各种功能应用以及数据处理。存储器1120可主要包括存储程序区和存储数据区。此外，存储器1120可以包括高速随机存取存储器，还可以包括非易失性存储器。
输入单元1130可用于接收输入的数字或字符信息，以及产生与站点的用户设置以及功能控制有关的键信号输入。具体地，输入单元1130可包括触控面板1131以及其他输入设备1132。
显示单元1140可用于显示由用户输入的信息或提供给用户的信息以及站点的各种菜单。
WiFi属于短距离无线传输技术，站点通过WiFi模块1170可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。
处理器1180是站点的控制中心，利用各种接口和线路连接整个站点的各个部分，通过运行或执行存储在存储器1120内的软件程序和/或模块，以及调用存储在存储器1120内的数据，执行站点的各种功能和处理数据，从而对站点进行整体监控。
收发器1110或者WiFi模块1170，用于接收无线帧；
存储器1120，用于当测得无线帧的信号强度大于或者等于阈值时，生成干扰信息，干扰信息包括无线帧的接收方，及无线帧的传输时间区间的信息；
收发器1110或者WiFi模块1170，用于将干扰信息向目标接入点发送，以使目标接入点将干扰信息发送至接入控制器，干扰信息用于接入控制器根据干扰信息确定目标链路组，目标链路组为：在链路集合中除了干扰链路之外的链路，干扰链路为目标接入点与目标站点之间的链路。
处理器1180，用于使该站点侧的数据传输装置执行图4、图5和图6中站点所实际执行的方法步骤。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发明实施例所述的流程或功能。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(DSL))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储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(SSD))等。

Claims (34)

  1. 一种数据传输的方法，其特征在于，包括：
    获取至少两条链路的链路信息的集合和指示信息的集合，所述链路信息用于指示在链路上传输的无线帧的发送方，所述无线帧的接收方，及所述无线帧的传输时间区间；所述指示信息用于指示所述接收方是否成功接收到所述链路上传输的所述无线帧，所述至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；
    根据所述至少两条链路的链路信息的集合和所述指示信息的集合确定目标链路组，所述目标链路组包括：所述至少两条链路中，所述指示信息均指示所述接收方成功接收到所述链路上传输的无线帧的目标链路。
  2. 根据权利要求1所述的方法，其特征在于，根据所述至少两条链路的链路信息的集合和所述指示信息的集合确定目标链路组之后，所述方法还包括：
    调度所述目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
  3. 根据权利要求2所述的方法，其特征在于，当所述发送方为接入点，所述接收方为站点时，所述调度所述目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据，包括：
    调度所述链路组中每个目标链路的接入点，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵向各自链路中的站点发送数据。
  4. 根据权利要求2所述的方法，其特征在于，当所述发送方为站点，所述接收方为接入点时，所述调度所述目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据，包括：
    调度所述链路组中每个目标链路中的接入点，在相同的时间区间内，触发所述各自链路中的站点采用所述传输时间区间对应的预编码矩阵向所述接入点发送数据。
  5. 一种数据传输的方法，其特征在于，包括：
    接入点生成链路信息和指示信息，所述链路信息用于指示在链路上传输无线帧的发送方，无线帧的接收方，所述无线帧的传输时间区间，所述指示信息用于指示所述接收方是否成功接收到所述发送方传输的无线帧；
    所述接入点发送所述链路信息，所述链路信息用于确定目标链路组，所述目标链路组包括至少两条目标链路，所述目标链路组包括：所述指示信息均指示所述接收方成功接收到所述链路上传输的无线帧的目标链路，所述目标链路组中每个目标链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间。
  6. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    所述接入点向站点发送第一无线帧，所述指示信息用于指示所述站点是否成功接收到所述接入点发送的所述第一无线帧。
  7. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    所述接入点向站点发送触发帧，所述触发帧用于触发所述站点向所述接入点发送第二无线帧；
    所述指示信息用于指示所述接入点是否成功接收到所述站点发送的所述第二无线帧。
  8. 一种数据传输的方法，其特征在于，包括：
    获取链路信息的集合和干扰信息的集合，所述链路信息的集合用于指示链路的集合；
    所述链路信息的集合中的一个链路信息包括在链路上传输的无线帧的发送方为第一接入点，所述无线帧的接收方为第一站点，以及所述无线帧的传输时间区间，所述第一站点与所述第一接入点相关联，所述链路集合中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；
    所述干扰信息用于指示，在所述无线帧的传输时间区间内，第二站点接收到的所述无线帧的信号强度大于或者等于阈值，所述第二站点与第二接入点相关联；
    根据所述链路信息的集合和干扰信息的集合确定目标链路组，所述目标链路组为：在链路集合中除了干扰链路之外的链路，所述干扰链路为所述第二接入点与所述第二站点之间的链路。
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述链路信息的集合和干扰信息的集合确定目标链路组之后，所述方法还包括：
    调度所述目标链路组中的每一个目标链路的发送方，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵，向各自目标链路中的接收方发送数据。
  10. 一种数据传输的方法，其特征在于，包括：
    接入点向站点发送第一无线帧，所述站点与所述接入点相关联；
    所述接入点生成链路信息，所述链路信息用于指示所述第一无线帧的发送方为所述接入点，所述第一无线帧的接收方为所述站点，及所述无线帧的传输时间区间；
    所述接入点接收所述站点发送的干扰信息，所述干扰信息用于指示所述站点在接收所述第一无线帧时，接收到除了所述接入点之外的其他接入点发送的信号强度大于或者等于阈值的第二无线帧；
    所述接入点发送所述链路信息和所述干扰信息，所述链路信息和所述干扰信息用于确定目标链路组，所述目标链路组为：在链路集合中除了干扰链路之外的链路，所述干扰链路为所述接入点与所述站点之间的链路。
  11. 一种数据传输的方法，其特征在于，包括：
    站点接收无线帧；
    当所述站点测得所述无线帧的信号强度大于或者等于所述阈值时，所述站点生成干扰信息，所述干扰信息包括所述无线帧的接收方，及所述无线帧的传输时间区间，所述站点为所述无线帧的非目标接收方；
    所述站点向所述站点关联的接入点发送所述干扰信息，以使所述接入点发送所述干扰信息，所述干扰信息用于确定目标链路组，所述目标链路组为：在链路集合中除了干扰链路之外的链路，所述干扰链路为所述站点与所述关联的接入点之间的链路。
  12. 一种接入控制器侧的数据传输装置，其特征在于，包括：
    获取模块，用于获取至少两条链路的链路信息的集合和指示信息的集合，所述链路信息用于指示在链路上传输的无线帧的发送方，所述无线帧的接收方，及所述无线帧的传输 时间区间；所述指示信息用于指示所述接收方是否成功接收到所述链路上传输的所述无线帧，所述至少两条链路中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；
    确定模块，用于根据所述获取模块获取的所述至少两条链路的链路信息的集合和所述指示信息的集合确定目标链路组，所述目标链路组包括：所述至少两条链路中，所述指示信息均指示所述接收方成功接收到所述链路上传输的无线帧的目标链路。
  13. 根据权利要求12所述的数据传输装置，其特征在于，所述数据传输装置还包括调度模块；
    所述调度模块，用于调度所述确定模块确定的所述目标链路组中的每个目标链路的发送方，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵向各自链路中的接收方发送数据。
  14. 根据权利要求13所述的数据传输装置，其特征在于，当所述发送方为接入点，所述接收方为站点时，所述调度模块，还用于调度所述目标链路组中每个目标链路的接入点，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵向各自链路中的站点发送数据。
  15. 根据权利要求13所述的数据传输装置，其特征在于，当所述发送方为站点，所述接收方为接入点时，所述调度模块，还用于调度所述目标链路组中每个目标链路中的接入点，在相同的时间区间内，触发所述各自链路中的站点采用所述传输时间区间对应的预编码矩阵向所述接入点发送数据。
  16. 一种接入点侧的数据传输装置，其特征在于，包括：
    生成模块，用于生成链路信息和指示信息，所述链路信息用于指示在链路上传输无线帧的发送方，无线帧的接收方，所述无线帧的传输时间区间的信息，所述指示信息用于指示所述接收方是否成功接收到所述发送方传输的无线帧；
    发送模块，用于发送所述生成模块生成的链路信息，所述链路信息用于确定目标链路组，所述目标链路组包括至少两条目标链路，所述目标链路组包括：所述指示信息均指示所述接收方成功接收到所述链路上传输的无线帧的目标链路，所述目标链路组中每个目标链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间。
  17. 根据权利要求16所述的数据传输装置，其特征在于，
    所述发送模块，还用于向站点发送第一无线帧，所述指示信息用于指示所述站点是否成功接收到所述接入点发送的所述第一无线帧。
  18. 根据权利要求16所述的数据传输装置，其特征在于，
    所述发送模块，还用于向站点发送触发帧，所述触发帧用于触发所述站点向所述接入点发送第二无线帧；
    所述指示信息用于指示所述接入点是否成功接收到所述站点发送的所述第二无线帧。
  19. 一种接入控制器侧的数据传输装置，其特征在于，包括：
    获取模块，用于获取链路信息的集合和干扰信息的集合，所述链路信息的集合用于指示链路集合；所述链路信息的集合中的一个链路信息包括在链路上传输的无线帧的发送方 为第一接入点，所述无线帧的接收方为第一站点，以及所述无线帧的传输时间区间，所述第一站点与所述第一接入点相关联，所述链路集合中每个链路上传输的无线帧的传输时间区间具有相重叠的目标时间区间；所述干扰信息用于指示，在所述无线帧的传输时间区间内，第二站点接收到的所述无线帧的信号强度大于或者等于阈值，所述第二站点与第二接入点相关联；
    确定模块，用于根据所述获取模块获取的所述链路信息的集合和干扰信息的集合确定目标链路组，所述目标链路组为：在链路集合中除了干扰链路之外的链路，所述干扰链路为所述第二接入点与所述第二站点之间的链路。
  20. 根据权利要求19所述的数据传输装置，其特征在于，所述数据传输装置还包括调度模块；
    所述调度模块，用于调度所述确定模块确定的所述目标链路组中的每一个目标链路的发送方，在相同的时间区间内，采用所述传输时间区间对应的预编码矩阵，向各自目标链路中的接收方发送数据。
  21. 一种接入点侧的数据传输装置，其特征在于，包括：
    发送模块，用于向站点发送第一无线帧；
    生成模块，用于生成链路信息，所述链路信息用于指示所述第一无线帧的发送方为接入点，所述第一无线帧的接收方为站点，及所述无线帧的传输时间区间的信息，所述站点与所述接入点相关联；
    接收模块，用于接收所述站点发送的干扰信息，所述干扰信息用于指示所述站点在接收所述第一无线帧时，接收到除了与所述站点关联的接入点之外的其他接入点发送的信号强度大于或者等于阈值的第二无线帧；
    发送模块，还用于发送所述生成模块生成的所述链路信息和所述接收模块接收的所述干扰信息，所述链路信息和所述干扰信息用于确定目标链路组，所述目标链路组为：在链路集合中除了干扰链路之外的链路，所述干扰链路为：所述站点和所述站点相关联的接入点之间的链路。
  22. 一种站点侧的数据传输装置，其特征在于，包括：
    接收模块，用于接收无线帧；
    生成模块，用于当测得所述无线帧的信号强度大于或者等于所述阈值时，生成干扰信息，所述干扰信息包括所述无线帧的接收方，及所述无线帧的传输时间区间；
    发送模块，用于向所述站点关联的接入点发送所述生成模块生成的所述干扰信息，以使所述接入点发送所述干扰信息，所述干扰信息用于确定目标链路组，所述目标链路组为：在链路集合中除了干扰链路之外的链路，所述干扰链路为所述站点与所述站点相关联的接入点之间的链路。
  23. 一种接入控制器侧的数据传输装置，其特征在于，包括：
    处理器，所述处理器用于与存储器耦合，所述处理器调用所述存储器中存储的指令以控制所述数据传输装置执行权利要求1至4或权利要求8至9中任一项所述的方法。
  24. 一种计算机存储介质，其特征在于，用于存储计算机软件指令，所述计算机软件 指令包括用于执行权利要求1至4或权利要求8至9中任意一项所述的方法的指令。
  25. 一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被计算机运行时，使得计算机执行权利要求1至4或权利要求8至9中任意一项所述的方法。
  26. 一种装置被配置用于执行权利要求1至4或权利要求8至9中任一项所述的方法。
  27. 一种接入点侧的数据传输装置，其特征在于，包括：
    处理器，所述处理器用于与存储器耦合，所述处理器调用所述存储器中存储的指令以控制所述数据传输装置执行权利要求5至7或权利要求10中任一项所述的方法。
  28. 一种计算机存储介质，其特征在于，用于存储计算机软件指令，所述计算机软件指令包括用于执行权利要求5至7或权利要求10中任一项所述的方法的指令。
  29. 一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被计算机运行时，使得计算机执行权利要求5至7或权利要求10中任一项所述的方法。
  30. 一种装置被配置用于执行权利要求5至7或权利要求10中任一项所述的方法。
  31. 一种站点侧的数据传输装置，其特征在于，包括：
    处理器，所述处理器用于与存储器耦合，所述处理器调用所述存储器中存储的指令以控制所述数据传输装置：
    接收无线帧；
    当所述数据传输装置测得所述无线帧的信号强度大于或者等于所述阈值时，生成干扰信息，所述干扰信息包括所述无线帧的接收方，及所述无线帧的传输时间区间，所述数据传输装置为所述无线帧的非目标接收方；
    向所述数据传输装置关联的接入点发送所述干扰信息，以使所述接入点发送所述干扰信息，所述干扰信息用于确定目标链路组，所述目标链路组为：在链路集合中除了干扰链路之外的链路，所述干扰链路为所述数据传输装置与所述关联的接入点之间的链路。
  32. 一种计算机存储介质，其特征在于，用于存储计算机软件指令，所述计算机软件指令包括用于执行权利要求11所述的方法的指令。
  33. 一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被计算机运行时，使得计算机执行权利要求11所述的方法。
  34. 一种装置被配置用于执行权利要求11所述的方法。
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