WO2016161633A1 - 一种无线网络通信的方法和接入点设备 - Google Patents

一种无线网络通信的方法和接入点设备 Download PDF

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Publication number
WO2016161633A1
WO2016161633A1 PCT/CN2015/076315 CN2015076315W WO2016161633A1 WO 2016161633 A1 WO2016161633 A1 WO 2016161633A1 CN 2015076315 W CN2015076315 W CN 2015076315W WO 2016161633 A1 WO2016161633 A1 WO 2016161633A1
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Prior art keywords
station
access point
point device
frame
aps
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PCT/CN2015/076315
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English (en)
French (fr)
Inventor
廖湘柏
刘应状
罗俊
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华为技术有限公司
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Priority to PCT/CN2015/076315 priority Critical patent/WO2016161633A1/zh
Publication of WO2016161633A1 publication Critical patent/WO2016161633A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of wireless communications and, more particularly, to a method and wireless access device for wireless network communications.
  • the existing wireless fidelity (English: Wireless Fidelity, referred to as WiFi) technology uses Carrier Sense Multiple Access with Collision Avoidance (SMA/CA) protocol to pass the fixed threshold idle.
  • SMA/CA Carrier Sense Multiple Access with Collision Avoidance
  • Channel Assessment English: Clear Channel Assessment, CCA for short
  • RTS/CTS Request To Send/Clear To Send
  • the communication pair monopolizes the channel resource, and only after the communication pair is completed, the other communication pairs around can compete for the channel resource. In this way, the link being communicated is better protected, but in the case of high-density networking, the efficiency of spectrum utilization is greatly limited.
  • the CCA threshold in the dynamic CCA mechanism can be adjusted according to the network conditions. Therefore, the dynamic CCA mechanism can greatly improve the spectrum utilization efficiency in the case of high-density networking, but the resulting network conflict between parallel communication pairs.
  • the link being communicated is likely to be interrupted due to a network conflict.
  • Embodiments of the present invention provide a method and an access point device for wireless network communication, which can effectively utilize network spectrum resources while ensuring normal communication of a link being communicated.
  • the first aspect provides a method for wireless network communication, including: acquiring, by a first access point AP, an interference value of at least one AP to a first station, where the first station is scheduled by the first AP; Determining, by the first AP, the second AP from the at least one AP according to the interference value of the at least one AP to the first station; the first AP sending indication information to the second AP, where the indication The information is used to indicate that the second AP performs parallel transmission of data with the first AP.
  • the at least one AP is a neighbor AP of the first AP.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first site is smaller than the first site The allowed interference threshold.
  • the method further includes: the first AP to the n of the neighbor APs
  • the AP sends a pairing request frame, where the pairing request frame carries an interference threshold allowed by the first station; the first AP receives a pairing allowed frame returned by the at least one of the n APs, where The interference value of the at least one AP to the first station is smaller than the interference threshold, and the pairing allowed frame returned by each AP of the at least one AP carries the interference value of each AP to the first station.
  • the method further includes: when the at least one condition is met, the first AP is The n APs in the neighboring APs send the pairing request frame: the first AP receives an indication message for initiating AP pairing; the first downlink data frame length that the first AP needs to send to the first station is greater than Or equal to the threshold length; and the signal strength of the clear transmission frame CTS sent by the first station received by the first AP is greater than or equal to the threshold strength.
  • the method further includes: the first AP acquiring the reported by the first station The first site neighboring cell AP list; the first AP selects, from the neighboring APs, the n APs located in the first site neighboring cell AP list.
  • the method further includes: the first AP from the at least one The second AP is selected by the AP, where the interference value of the second AP to the first station is less than or equal to the interference value of the remaining APs in the at least one AP to the first station.
  • the indication information includes a wireless network allocation vector, the wireless network allocation vector Used by the second AP to control the second downlink data frame sent by the second AP Ending before the end of the transmission of the first downlink data frame sent by the first AP.
  • a method for wireless network communication including: receiving, by a second access point AP, indication information sent by a first access point AP, where the indication information is used to indicate the second AP Parallel transmission of data with the first AP, wherein the second AP is determined by the first AP from the at least one AP according to an interference value of the at least one AP to the first station, the at least one AP The first AP is scheduled by the first AP, and the second AP performs parallel transmission of data with the first AP according to the indication of the indication message.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first station is smaller than the first The interference value allowed by the site.
  • the method further includes: the second AP receives a pairing request frame sent by the first AP, where the pairing request frame carries an allowed interference threshold of the first station; and the second AP determines the second AP The interference value for the first station is smaller than the interference threshold allowed by the first station and the second AP has a data transmission requirement; the second AP returns an allowed pairing frame to the first AP, where the Allowing the paired frame to carry the interference value of the second AP to the first station.
  • the second AP Before the first AP performs the parallel transmission of the data, the method further includes: the second AP receiving the neighboring AP list reported by each site associated with the second AP; and the second AP according to the multiple sites The reported neighboring cell AP list selects a second site that is outside the coverage of the first AP.
  • the indication message carries network allocation vector information
  • the second AP is configured according to the indication message And performing parallel transmission of data with the first AP, where the second AP sends a downlink data frame to the second station by using the first channel, and the second AP controls the foregoing according to the network allocation vector information.
  • a third aspect provides an access point device for wireless communication, including: an obtaining module, where the acquiring module is configured to acquire an interference value of at least one access point AP to a first station, where the first station is configured by The determining, the determining module is configured to determine, according to the interference value of the at least one AP to the first station, a second AP from the at least one AP, and a sending module, where The sending module is configured to send the indication information to the second AP, where the indication information is used to indicate that the second AP performs parallel transmission of data with the access point device.
  • the at least one AP is a neighbor AP of the first AP.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first site is smaller than the first site The allowed interference threshold.
  • the acquiring module further includes: a first sending unit, where the first sending unit is configured to: Sending a pairing request frame to the n APs in the neighboring cell AP, where the pairing request frame carries an interference threshold allowed by the first station, and a first receiving unit, where the first receiving unit is configured to receive the a pairing allowed frame returned by the at least one AP in the APs, wherein the interference value of the at least one AP to the first station is less than the interference threshold, and each AP of the at least one AP returns The pairing allowed frame carries the interference value of the each AP to the first station.
  • the device further includes a determining module, where the determining module is configured to: when at least one of the following conditions is met
  • the access point device sends the pairing request frame to the n APs in the neighboring AP: the access point device receives an indication message for initiating AP pairing; the access point device needs to go to the The length of the first downlink data frame sent by the first station is greater than or equal to the threshold length; and the signal strength of the clear transmission frame CTS sent by the first station received by the access point device is greater than or equal to the threshold strength.
  • the acquiring module further includes a first selecting unit, where the first selecting unit is configured to: Acquiring a list of neighboring APs of the first site reported by the first station; from the neighboring APs Selecting the n APs located in the neighboring cell AP list of the first site.
  • the determining module further includes a second selecting unit, where the second selecting unit is configured to: Selecting the second AP from the at least one AP, where the interference value of the second AP to the first station is less than or equal to the interference of the remaining APs in the at least one AP to the first station value.
  • the indication information includes a wireless network allocation vector, the wireless network allocation vector
  • the second downlink data frame used by the second AP to control the second AP to be sent ends before the end of the first downlink data frame transmission sent by the first AP.
  • a fourth aspect provides an access point device of a wireless network, including: a receiving module, where the receiving module is configured to receive indication information sent by a first access point AP, where the indication information is used to indicate the access
  • the point device performs parallel transmission of data with the first AP, where the access point device is determined by the first AP from the at least one AP according to the interference value of the at least one AP to the first station,
  • the first AP is a neighboring AP of the first AP, and the first station is scheduled by the first AP
  • the transmission module is configured to perform, according to the indication of the indication message, with the first AP. Parallel transfer of data.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first station is smaller than the first The interference value allowed by the site.
  • the access point device further includes a response module, where the response module is configured to: receive a pairing request frame sent by the access point device, where the pairing request frame carries an allowed interference threshold of the first station; and determining that the interference value of the access point device to the first station is smaller than the first An interference threshold allowed by the station; returning an allowed pairing frame to the first AP, wherein the allowed pairing frame carries an interference value of the access point device to the first station.
  • the access point device further includes a selecting module, the selecting module For receiving: a list of neighboring APs reported by each site associated with the access point device; According to the list of neighboring APs reported by the respective sites, the second site located outside the coverage of the access point device is selected.
  • the transmitting module is specifically configured to: send, by using the first channel, a downlink data frame to the second station; Controlling, according to the network allocation vector information, a length of the second downlink data frame, so that the second downlink data frame ends before the end of the first downlink data frame transmission.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • FIG. 1 is a schematic diagram of an example of a system scenario to which an embodiment of the present invention may be applied.
  • FIG. 2 is a flowchart of a method for wireless network communication according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for wireless network communication according to another embodiment of the present invention.
  • 4A is a schematic diagram of an example of a system scenario provided by an embodiment of the present invention.
  • FIG. 4B is a flowchart of a method for wireless network communication according to an embodiment of the present invention.
  • FIG. 5A is a schematic diagram of an example of a system scenario provided by an embodiment of the present invention.
  • FIG. 5B is a flowchart of a method for wireless network communication according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of an access point device according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of an access point device according to another embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of an access point device according to another embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of an access point device according to still another embodiment of the present invention.
  • WLAN networks may be a WiFi network, or may be a Worldwide Interoperability for Microwave Access (WIRE) or a WAPI (WLAN Authentication and
  • Wired local area network authentication and security infrastructure The privacy infrastructure, which is simply referred to as a "wireless local area network authentication and security infrastructure" network, is not limited in this embodiment of the present invention.
  • a station can be connected to the Internet through an Access Point (AP).
  • the site may be a device with signal acquisition, data processing, wireless communication and the like in the WLAN network sensor application service, or may be a device that communicates with the access point in other application services other than the sensor application service of the WLAN network.
  • the site may be a fixed terminal or a mobile terminal such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • the AP may be a separate AP, and the AP may be controlled and managed by an Access Controller (AC), or may be an AP that includes an AC function, or may form a specific base station with the base station.
  • AC Access Controller
  • the method and apparatus for establishing a direct link in a WLAN provided by an embodiment of the present invention are mainly applied to a scheduling-based WLAN system, including a completely scheduling-based WLAN system and a WLAN system based on scheduling and competition, but It can also be applied to a contention-based WLAN system, which is not limited in this embodiment of the present invention.
  • FIG. 1 is a schematic diagram of an example of a system scenario to which an embodiment of the present invention may be applied.
  • the network system comprises a plurality of WIFI AP and STA, AP. 1 wherein the channel after the competition establish communication with the STA 11.
  • the AP 1 establishes communication with the STA 1 after competing to the channel, and the neighboring communication node allocates a vector through the network in the RTS frame and the CTS frame (English: Network Allocation Vector, abbreviated: NAV) Determining the communication time between AP 1 and STA 1 , the above-mentioned peripheral communication node remains silent during the communication time, thereby ensuring that communication between AP 1 and STA 1 is not interfered, but at the same time, the RTS/CTS mode is severely limited. Parallel communication between multiple network nodes is less efficient in a WIFI-intensive networking scenario.
  • a communication connection may be established between the AP 2 and the STA 2 , and a communication connection may be established between the AP 3 and the STA 3 , and the AP 2 or the AP 3 may be established. It may cause large interference to STA 1.
  • the fixed threshold CCA can avoid interference to a certain extent, but it also reduces the probability of concurrent communication and affects communication efficiency.
  • Dynamic CCA can greatly improve concurrent communication in WIFI dense networking scenarios. Probability, but at the same time the probability of collision is also greatly increased.
  • Embodiments of the present invention provide a method and an access point device for wireless network communication, which can effectively utilize network spectrum resources while ensuring normal communication of a link being communicated.
  • the selection of AP 1 and an AP link with the AP the STA 1 1 affect the communication between parallel data transmission, to be able to provide effective Utilization of network spectrum resources.
  • FIG. 2 is a flowchart of a method for wireless network communication according to an embodiment of the present invention.
  • Step 210 The first access point AP acquires an interference value of the at least one AP to the first station, where the first station is scheduled by the first AP.
  • Step 220 The first AP determines the second AP from the at least one AP according to the interference value of the at least one AP to the first station.
  • Step 230 The first AP sends the indication information to the second AP, where the indication information is used to indicate that the second AP performs parallel transmission of data with the first AP.
  • the scheduling of the first station by the first AP means that the downlink data needs to be sent to the first station after the first AP detects that the channel is idle.
  • the first AP selects one or more APs that have the least impact on the first station interference as the second AP from the at least one AP, which may also be called a pairing AP, and the second AP allows the first AP.
  • the AP performs parallel data transmission.
  • the second AP allows pairing with the first AP. It should be understood that the second AP may refer to one AP or some APs.
  • the first AP sends an indication message to the second AP, where the indication message is used to indicate that the second AP performs downlink parallel transmission of data with the first AP.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • the at least one AP is a neighbor AP of the first AP, where the neighbor AP of the first AP includes the AP discovered by the first AP and/or each site associated with the first AP. Discovered AP.
  • the neighbor AP of the first AP may also be a neighbor AP that is pre-configured to the first AP.
  • the first AP has already saved the neighbor AP list.
  • a neighboring AP of an AP, the present invention is not limited thereto.
  • the at least one AP has a data transmission requirement, that is, the at least one AP has data to be sent.
  • the interference of the at least one AP to the first station is less than the interference threshold allowed by the first station.
  • the first AP may compare the interference value of each AP to the first station with the allowed interference threshold of the first station, thereby determining at least one AP.
  • the interference threshold allowed by the first station is the interference threshold set by the first AP for the first station.
  • the first AP sends a pairing request frame to the n APs in the neighboring AP, where the pairing request frame does not carry the interference threshold allowed by the first station, and the n APs allow
  • the APs that perform parallel data transmission with the first AP may return an allowed pairing frame, each of which allows the paired frame to carry the interference value of each AP to the first station, and the first AP compares the interference carried in each allowed paired frame.
  • the magnitude of the interference threshold with the first site determines the second AP.
  • the first AP acquires an interference value of the at least one AP to the first station, where the first AP sends a pairing request frame to the n APs of the neighbor APs of the first AP, where the pairing The request frame carries an interference threshold allowed by the first station; the first AP receives a pairing allowed frame returned by at least one of the n APs, where the interference value of the at least one AP to the first station is less than an interference threshold, and at least one The pairing allowed frame returned by each AP in the AP carries the interference value of each AP to the first station.
  • the at least one AP refers to one or more APs that return the allowed pairing frame to the first AP after receiving the pairing request frame sent by the first AP.
  • the process of the first AP sending the pairing request frame to the n APs of the neighboring APs of the first AP may be: the first AP carries the n APs in the pairing request frame sent to the APs in the neighboring area.
  • the identification information of an AP is sent to the n APs of the neighbor APs of the first AP in a polling manner to select a second AP from the n APs for parallel data transmission.
  • the first AP may also send a pairing request to n of the neighbor APs of the first AP using a broadcast message, and the present invention is not limited thereto.
  • the first AP sends a pairing request frame to the n APs of the neighboring APs of the first AP, where the pairing request frame carries the interference threshold allowed by the first station, where the first AP is in the first AP.
  • each AP compares the interference value of the first station with the interference threshold allowed by the first station, and when an AP accesses the first station. When the interference value is greater than the interference threshold allowed by the first station, the pairing rejection frame will be returned to the first station or no response message will be returned.
  • the n-th AP AP interference has m values greater than the first station site allows the first interference threshold, then the m any AP in the AP returns to the first I frame or a reject station pairing does not return any Responding to the message, so that the first AP selects the second AP according to the received response message.
  • the first AP sends a pairing request frame to the n APs in the neighboring AP, where the pairing request frame carries the interference threshold allowed by the first station, and the n in the first AP neighbor AP
  • the AP receives the pairing request frame sent by the first AP
  • each AP compares its own interference value with the first station with the interference threshold allowed by the first station, and when the interference value of an AP to the first station is less than or When the interference threshold allowed by the first station is equal, the pairing permission frame is returned to the first station, and the pairing allows the frame to carry the interference value of the AP to the first station.
  • the interference value of the s APs of the n APs to the first station is less than or equal to the interference threshold allowed by the first station, and the s APs have data transmission requirements, then any one of the s APs S returns to the first station AP allow pairing frame, the AP returns to the first station S pairing allows the frame carries the first interference value S AP sites to carry the received response message to the first AP in each AP
  • the second AP is selected for the interference value of the first station.
  • the first AP when the at least one condition is met, sends the pairing request frame to n APs of the neighbor APs of the first AP: the first AP receives the startup AP pairing
  • the first downlink data frame length that the first AP needs to send to the first station is greater than or equal to the threshold length; the signal strength of the clear transmission frame CTS sent by the first station received by the first AP is greater than or equal to the threshold strength.
  • the first AP needs to meet at least one of the following conditions: the first AP receives the indication message for initiating the AP pairing, and after receiving the indication message, the first The AP determines that the second AP can be selected from the n APs of the neighboring APs of the first AP to perform parallel transmission of data with the second AP.
  • the first downlink data frame length that the first AP needs to send to the first station is greater than
  • the threshold length value may be 100 bytes or other set length, and the present invention is not limited thereto; the received signal strength of the clear transmission frame CTS sent by the first station is greater than or equal to the threshold strength, and the threshold strength is
  • the specific value can be set according to the CTS threshold, for example, it can be -82 dBm.
  • condition for starting the AP pairing may be one of the above conditions, or a combination of the above several conditions.
  • the first AP does not initiate AP pairing, that is, The second AP is selected from the APs in the neighboring APs of the first AP to perform pairing and instructs the second AP to perform parallel transmission of downlink data, so as to avoid neighboring communication node pairs.
  • the first STA causes communication interference.
  • the first AP directly initiates AP pairing without satisfying any condition, and selects a second AP from the n APs to perform parallel transmission of data.
  • the method before the first AP sends a pairing request frame to the n APs in the neighboring AP, the method further includes: acquiring, by the first AP, the first site neighboring AP that is reported by the first station The first AP selects n APs located in the AP list of the first site neighboring cell from the APs in the neighboring APs of the first AP.
  • the n APs are APs located in the neighbor APs of the first AP and existing in the first station neighbor AP list reported by the first station.
  • the first AP selects a second AP from the at least one AP, where the interference value of the second AP to the first station is less than or equal to the remaining APs in the at least one AP to the first site. Interference value.
  • the first AP receives the allowed pairing frames returned by the k APs to the second AP, and each of the allowed pairing frames carries the interference value of each AP to the first station, and the first AP compares the k interference values.
  • One or more APs are selected as the second AP to facilitate pairing with the first AP for parallel downlink data transmission.
  • the interference value of the second AP to the first station is less than or equal to the interference value of the remaining APs in the at least one AP to the first station, specifically: the interference value of the second AP to the first station is less than or equal to at least one AP.
  • the indication information includes a radio network allocation vector, where the second AP controls the second downlink data frame sent by the second AP to be sent by the first AP in the first downlink.
  • the data frame ends before the end of the transmission.
  • the first AP sends the indication information to the second AP as a broadcast pairing message, where the broadcast pairing message is used to instruct the second AP to perform parallel transmission of data with the first AP.
  • the method for the wireless network communication further includes: the first AP sends the first downlink data frame to the first station by using the first channel; and the first AP sends the indication information to the second AP.
  • the second downlink data frame is sent to the second station by the second AP by using the first channel, where the first downlink data frame and the second downlink data frame partially coincide in time.
  • the second site refers to a certain station that establishes communication with the certain AP; when the second AP refers to some APs that satisfy the first condition, the second A site is a site that establishes a communication connection with several APs.
  • the process includes: sending an RTS frame to the first station, if the first site is not the basic service set of the neighboring area (English: Basic Service Set, shorthand: BSS)
  • the setting of the wireless network allocation vector NAV returns a CTS frame to the first AP.
  • the first AP may start to transmit the first downlink data frame through the first channel.
  • the determining, by the first AP, the second AP from the at least one AP, and indicating that the second AP can perform parallel data transmission with the first AP may occur before the first AP establishes the first channel connection with the first station, It may occur after the first AP establishes a first channel connection with the second STA.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • FIG. 3 is a flowchart of a method for wireless network communication according to an embodiment of the present invention.
  • Step 310 The second access point AP receives the indication information sent by the first access point AP, where the indication information is used to indicate that the second AP performs parallel transmission of data with the first AP, where the second AP is configured by the first AP according to the first AP.
  • the interference value of the at least one AP to the first station is determined by the at least one AP, the at least one AP is a neighbor AP of the first AP, and the first station is scheduled by the first AP;
  • Step 320 The second AP performs parallel transmission of data with the first AP according to the indication of the indication message.
  • the second AP receives the indication information sent by the first AP, where the indication message carries the identifier information of the second AP, and is used to instruct the second AP to perform parallel transmission of data with the first AP.
  • the indication information sent by the first AP is sent to each AP in the form of a broadcast message
  • the second AP finds that the broadcast message carries its own identification information, and the second AP determines that the downlink data may be transmitted in parallel with the first AP.
  • the other APs in the neighboring APs of the first AP do not find their own identification information in the broadcast message sent by the first AP, and then select backoff, and select silence in the time when the first AP and the second AP perform parallel communication.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • the at least one AP has a data transmission requirement.
  • the interference of the at least one AP to the first station is less than the interference value allowed by the first station.
  • the method before the second AP receives the indication message sent by the first AP, the method further includes: the second AP receives the pairing request frame sent by the first AP, and the pairing request frame carries the first station. Allowing an interference threshold; the second AP determines that the interference value of the second AP to the first station is smaller than the interference threshold allowed by the first station; and the second AP returns an allowed pairing frame to the first AP, where the second AP is allowed to be carried in the paired frame. The interference value to the first site.
  • the second AP may measure the channel information of the first station to the second AP according to the CTS sent by the first station, and use the equivalent channel.
  • the reciprocity, the interference value of the second AP to the first station can be obtained by:
  • V 2 is a precoding matrix of the second AP
  • P 2 is a transmission power of the second AP
  • the remaining APs in the neighbor APs of the first AP and located in the first station neighbor list may also obtain respective interference values to the first station through the reciprocity of the equivalent channels.
  • each AP compares the interference value of the first station with the first station.
  • the interference threshold size when an AP's interference value to the first station is greater than the interference threshold allowed by the first station, returns a pairing rejection frame to the first station or does not return any response message.
  • the n-th AP AP interference has m values greater than the first station site allows the first interference threshold, then the m any AP in the AP returns to the first I frame or a reject station pairing does not return any Response message.
  • the n APs in the neighbor APs of the first AP receive the first After an AP sends a pairing request frame, each AP compares its own interference value with the first station with the interference threshold allowed by the first station, and when the interference value of an AP to the first station is less than or equal to the first station. When the interference threshold and the data transmission requirement are met, the pairing permission frame is returned to the first station, and the pairing allows the frame to carry the interference value of the AP to the first station.
  • the interference value of the s APs of the n APs to the first station is less than or equal to the interference threshold allowed by the first station, and the s APs have data transmission requirements, then any one of the s APs s is returned to the first station to allow pairing frame, the AP returns s to the first station to allow pairing frame carries the first interference value AP s site, in order to carry the AP according to the received first response message to each AP
  • the interference value of the first station selects the second AP.
  • the method before the second AP performs parallel transmission of data with the first AP according to the indication of the indication message, the method further includes: receiving, by the second AP, the neighbors reported by the respective sites associated with the second AP a second AP is selected according to the neighboring AP list reported by each site associated with the second AP, so that the second AP is located outside the coverage of the first AP, so that the second AP is to the second site.
  • the coverage of the first AP refers to an area where the signal strength of the CTS sent by the first AP is greater than or equal to a certain threshold, and the size of the coverage may be updated according to actual needs.
  • the second site refers to a certain station that establishes communication with the certain AP; when the second AP refers to some APs that satisfy the first condition, the second A site is a site that establishes a communication connection with several APs.
  • the indication message carries the network allocation vector information
  • the second AP performs the parallel transmission of the data with the first AP according to the indication of the indication message, where the second AP passes the first channel to the second
  • the second downlink data frame is sent by the station, where the first channel is used to carry the first downlink data frame sent by the first AP to the first station, and the second AP controls the length of the second downlink data frame according to the network allocation vector information, so that The second downlink data frame ends before the end of the first downlink data frame transmission.
  • FIG. 2 and FIG. 3 may be performed by the same AP having a specific function, and may be the first AP referred to in the embodiment of FIG. 2 or the second AP in the embodiment of FIG. The invention is not limited thereto. It should be understood that the method of wireless network communication illustrated in FIGS. 2 and 3 may be performed on the same access point device, and the present invention is not limited thereto.
  • the first station receives the downlink data frame sent by the first AP by using the first channel; the first station sends the neighbor AP list of the first site to the first AP.
  • the first site listens to the beacon BEACON of the AP in the neighboring area of the first site to obtain a neighbor AP list of the first site.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • FIG. 4A and FIG. 4B are flowcharts of a method for communication according to an embodiment of the present invention.
  • AP 1 , AP 2 and AP 3 are respectively three access points
  • STA 1 , STA 2 and STA 3 are respectively three sites
  • BBS1, BBS2 and BBS3 are respectively three basic service sets. The coverage of these three basic service sets is different (three circular areas in the figure).
  • the entire communication process can be divided into three phases: a channel contention phase, an AP pairing phase, and a data transmission phase.
  • the AP 1 In the channel contention phase, (1) when the AP 1 detects that the channel (ie, the first channel indicated in the embodiment of FIG. 2) is idle, scheduling STA 1 (ie, the first STA referred to in the embodiment of FIG. 2), The STA 1 sends an RTS frame, and the STA 1 does not set the NAV by the BBS (ie, BBS1 or BBS2 in FIG. 4A), and then returns the CTS to the AP1.
  • the BBS ie, BBS1 or BBS2 in FIG. 4A
  • the AP in the neighboring cell list around STA 1 is the AP in the coverage of STA 1 transmission, that is, BBS1 in the figure, as shown in Figure 4B, AP 2 and AP 3 , according to the received STA.
  • the AP 1 After receiving the CTS sent by STA 1 , AP 1 contends to the channel. At this time, the AP 1 can directly initiate the AP pairing, and select the second AP to be paired from the coverage of the STA 1. In addition, the AP 1 can also determine whether to initiate the AP pairing phase according to at least one of the following conditions: receiving an indication message for initiating AP pairing; needs to be transmitted to the data length of the STA 1 exceeds the length th, for example, 100 bytes; signal strength of the AP CTS, the STA 1 transmits the one received in excess of a certain threshold RSSI th, the threshold RSSI th threshold may be determined limit by CTS door. It should be understood that the condition that AP 1 initiates AP pairing may satisfy one of the above conditions, or may be a combination that needs to satisfy the above several conditions at the same time.
  • the AP 1 When the AP 1 determines that the conditions for starting AP pairing are met, it can pair with other APs in the coverage of the AP 1 to perform parallel downlink data transmission, thereby effectively improving the utilization of spectrum resources.
  • Coverage AP 1 refers to a signal strength of the AP 1 transmits the CTS is greater than or equal to a certain threshold region, the size of the coverage area may be updated according to actual needs.
  • AP 1 When AP 1 does not initiate AP pairing, it directly enters the data transmission phase with STA 1 .
  • the specific process is as shown in FIG. 4B.
  • the AP 1 sequentially sends a pairing request frame to the AP x in the coverage area AP list that belongs to the STA 1 in its coverage area, as shown in FIG. 4B.
  • x 2, 3.
  • Sit neighboring AP, idle 1 the STA neighbor 1 AP list may be STA BEACON frame is transmitted or neighboring measurement frame is obtained, and the STA 1 periodic report AP neighbor list to the AP 1, for example, the STA 1 may be T at a period to AP 1 reports its neighbor AP list, and can also report its neighbor AP list to AP 1 from time to time.
  • the destination address of the pairing request frame PREQ is AP x , and carries the interference value I th allowed by STA 1 in the PREQ, and I th represents the maximum interference that the primary link that AP 1 and STA 1 can bear.
  • the AP 1 sends the PREQ x to the AP x for a period of time. For example, it may be a distributed inter-frame span (English: Distributed Inter-frame Spacing, shorthand: DIFS) or other frame gap time. The present invention is not limited to this, and the AP is not received. After the response of x or AP 1 receives the response of AP x to the PREQ, AP 1 continues to send the pairing request frame PREQ to the next AP in the list;
  • AP x After receiving the PREQ x frame sent by AP 1 , AP x obtains the equivalent channel according to the channel competition phase.
  • the interference value I x caused by the AP x transmission to STA 1 is calculated by the following formula:
  • V x is the precoding matrix selected by AP x and P x is the transmission power of AP x . If I x ⁇ I th and AP x has data to transmit, the AP x to the AP 1 Press Entitlement to allow frame PACK x, the PACK x frame carries I x; otherwise, AP x to AP 1 Press Entitlement of the rejected frame PNACK x or Do not return any information to AP 1 ;
  • AP 2 selects the AP with the smallest I x as the paired AP according to the PACK frame replied by AP x .
  • AP 1 broadcasts the pairing response frame (English: Pair response) , short: PRES), this frame carries the AP identification information of AP 2 .
  • the neighbor AP that has received the PREQ frame but has not received the PRES frame remains silent.
  • the neighboring cell AP that receives the PRES frame can determine whether it allows concurrent downlink transmission with the AP 1 according to the AP identity information carried by the PRES.
  • AP 2 receives the PRES and knows that it allows downlink transmission with AP 1 concurrently.
  • AP 3 receives the PRES and knows that it does not allow concurrent downlink transmission with AP 1 .
  • AP 1 after the transmission PRES, over a short frame interval (English: Short interframe space, abbreviation: SIFS) after sending the data to the STA 1;
  • SIFS Short interframe space
  • AP 2 After receiving the PRES frame sent by AP 1 , AP 2 knows that it can be concurrent with AP 1 .
  • the AP 2 selects a STA that is not in the coverage area of the AP 1 to perform downlink transmission according to the neighboring cell list reported by each STA. As shown in FIG. 4A, it is assumed that the selected STA is STA 2 .
  • the AP 2 sends an RTS to the STA 1 , and after receiving the CTS of the STA 2 , the AP 2 and the STA 2 perform downlink data transmission;
  • FIG. 5A and FIG. 5B are flowcharts of a method for communication according to another embodiment of the present invention.
  • AP 1 , AP 2 and AP 3 are respectively three access points
  • STA 1 , STA 2 and STA 3 are respectively three sites
  • BBS1, BBS2 and BBS3 are respectively three basic service sets. The coverage of these three basic service sets is different (three circular areas in the figure).
  • the entire communication process can be divided into three phases: an AP pairing phase, a channel contention phase, and a data transmission phase.
  • the AP 1 sequentially sends a pairing request frame to the AP x in the coverage area AP list that belongs to the STA 1 in its coverage area, as shown in FIG. 5B.
  • x 2, 3.
  • 1 AP STA neighbor list may be transmitted to attend STA neighbor AP, « 1 obtained when idle, and the STA 1 which reports regularly to the AP neighbor list 1 AP, STA 1 may be, for example, a period T o which reports to the AP 1
  • the AP list can also report its neighbor AP list to AP 1 from time to time.
  • the destination address of the pairing request frame PREQ is AP x , and carries the interference value I th allowed by STA 1 in the PREQ, and I th represents the maximum interference that the primary link that AP 1 and STA 1 can bear.
  • AP x After receiving the PREQ x frame sent by AP 1 , AP x obtains the equivalent channel according to the channel competition phase.
  • the interference value I x caused by the AP x transmission to STA 1 is calculated by the following formula:
  • V x is the precoding matrix selected by AP x and P x is the transmission power of AP x . If I x ⁇ I th and AP x has data to transmit, the AP x to the AP 1 Press Entitlement to allow the frame (English: Pair Acknowledgement, abbreviated: PACK x), the PACK x frame carries I x; otherwise, AP x to AP 1 sends back a pairing rejection frame PNACK x or does not return any information to AP 1 ;
  • AP 1 selects the AP with the smallest I x as the paired AP according to the PACK frame replied by AP x .
  • AP 2 determines that it is a paired AP
  • AP 1 broadcasts a pairing response frame PRES, which carries the frame.
  • AP identification information of AP 2 The neighbor AP that has received the PREQ frame but has not received the PRES frame remains silent.
  • the neighboring cell AP that receives the PRES frame can determine whether it allows concurrent downlink transmission with the AP 1 according to the AP identity information carried by the PRES.
  • AP 2 receives the PRES and knows that it allows downlink transmission with AP 1 concurrently.
  • AP 3 receives the PRES and knows that it does not allow downlink transmission with AP 1 concurrently.
  • the channel contention phase (1) when AP 1 (ie, the first AP referred to in the embodiment of FIG. 2) detects that the channel (ie, the first channel indicated in the embodiment of FIG. 2) is idle, schedules STA 1 ( i.e. FIG. 2 embodiment referred to a first embodiment STA), transmits an RTS frame to the STA. 1, the STA is not Pro. 1 BBS (i.e., referred to in FIG. 4B or BBS3 BBS2) the NAV is set to the CTS reply AP1;
  • the AP 1 After receiving the CTS sent by STA 1 , AP 1 contends to the channel. At this time, the AP 1 can directly initiate the AP pairing, and select the second AP to be paired from the coverage of the STA 1. In addition, the AP 1 can also determine whether to initiate the AP pairing phase according to at least one of the following conditions: receiving an indication message for initiating AP pairing; needs to be transmitted to the data length of the STA 1 exceeds the length th, for example, 100 bytes; signal strength of the AP CTS, the STA 1 transmits the one received in excess of a certain threshold RSSI th, the threshold RSSI th threshold may be determined limit by CTS door. It should be understood that the condition that AP 1 initiates AP pairing may satisfy one of the above conditions, or may be a combination that needs to satisfy the above several conditions at the same time.
  • AP 1 When AP 1 does not initiate AP pairing, it directly enters the data transmission phase with STA 1 .
  • (1) AP 1 sends data to STA1 at the SIFS time after sending the PRES;
  • AP 2 After receiving the PRES frame sent by AP 1 , AP 2 knows that it can be concurrent with AP 1 .
  • the AP 2 selects a STA that is not in the coverage area of the AP 1 to perform downlink transmission according to the neighboring cell list reported by each STA. As shown in FIG. 5A, it is assumed that the selected STA is STA 2 .
  • the AP 2 sends an RTS to the STA 1 , and after receiving the CTS of the STA 2 , the AP 2 and the STA 2 perform downlink data transmission;
  • parallel communication by selecting an access point device that has less influence on the communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device being communicated, parallel communication can be realized.
  • the collision between the concurrent communication links is reduced, and the interference of the network node of the parallel communication to the primary link is reduced, so that the utilization of the network spectrum resources can be improved while ensuring the normal communication of the communication link.
  • FIGS. 1 to 5 details a method of wireless network communication.
  • the access point device and the site device of the wireless network communication will be described in detail below with reference to FIGS. 6 to 9.
  • FIG. 6 is a schematic block diagram of an access point device for wireless network communication according to an embodiment of the present invention. As shown in FIG. 6, the device 600 includes an obtaining module 610, a determining module 620, and a sending module 630.
  • the obtaining module 610 is configured to acquire an interference value of the at least one AP to the first station, where the first station is scheduled by the access point device.
  • the determining module 620 is configured to determine the second AP from the at least one AP according to the interference value of the at least one AP to the first station.
  • the sending module 630 is configured to send, to the second AP, the indication information, where the indication information is used to instruct the second AP to perform parallel transmission of data with the access point device.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • the at least one AP is a neighbor AP of the first AP.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first station is smaller than the interference threshold allowed by the first station.
  • the acquiring module 610 further includes: a first sending unit, where the first sending unit is configured to send a pairing request frame to the n APs in the neighboring AP of the access point device, where the pairing request frame carries The first receiving unit is configured to receive a pairing allowed frame returned by at least one of the n APs, where the interference value of the at least one AP to the first station is less than an interference threshold. And the pairing allowed frame returned by each AP in at least one AP carries the interference value of each AP to the first station.
  • the at least one AP refers to one or more APs that allow the paired frame to be returned to the access point device after receiving the pairing request frame sent by the access point device.
  • the process of sending, by the access point device, the pairing request frame to the n APs in the neighboring AP of the access point device may be: the access point device carries the n in the pairing request frame sent to the AP in the neighboring cell.
  • the identification information of a receiving AP of the APs is sent to the n APs of the neighboring APs of the access point device in a polling manner to select a second AP from the APs in the neighboring area to perform parallel The transmission of data.
  • the access point device further includes a determining module, where the determining module is configured to: when the at least one condition is met, the access point device is in the neighbor AP of the access point device The n APs send a pairing request frame: the access point device receives the indication message for initiating the AP pairing; the length of the first downlink data frame that the access point device needs to send to the first station is greater than or equal to the threshold length; the access point device receives The signal strength of the clear transmission frame CTS sent by the first station to be reached is greater than or equal to the threshold strength.
  • the second AP performs the parallel data transmission, and needs to meet at least one of the following conditions: the access point device receives the indication message for initiating AP pairing, after receiving the indication message, The access point device determines that the second AP can be selected from the n APs of the neighbor APs of the access point device to perform parallel data with the second AP.
  • the value of the threshold length of the first downlink data frame that the access point device needs to send to the first station is greater than or equal to 100 bytes, and may be other set lengths, and the present invention is not limited thereto;
  • the signal strength of the clear transmission frame CTS sent by the first station is greater than or equal to the threshold strength, and the specific value of the threshold strength may be set according to a CTS threshold threshold, for example, may be -82 dBm.
  • the condition for initiating AP pairing may be one of the above conditions, or a combination of the above several conditions.
  • the access point device does not initiate AP pairing. That is, the second AP is selected from the neighboring APs of the access point device to perform pairing and the second AP is instructed to perform parallel transmission of downlink data, so as to prevent the surrounding communication node from causing communication interference to the first station.
  • the access point device directly starts the AP pairing without satisfying any condition, and selects the second AP from the n APs to perform parallel transmission of data.
  • the obtaining module 610 further includes a first selecting unit, where the first selecting unit is configured to: obtain the neighboring AP list reported by the first station; and from the neighbor AP of the access point device The n APs located in the neighboring AP list are selected.
  • the determining module 620 further includes a second selecting unit, where the second selecting unit is configured to: select a second AP from the at least one AP, where the second AP is to the first site.
  • the interference value is less than or equal to the interference value of the remaining APs in the at least one AP to the first station.
  • the access point device receives the allowed pairing frames returned by the k APs to the second AP, and each of the allowed pairing frames carries the interference value of each AP to the first station, and the access point device compares the k The interference value, one or more APs are selected as the second AP to facilitate pairing with the access point device for parallel downlink data transmission.
  • the interference value of the second AP to the first station is less than or equal to the interference value of the remaining APs in the at least one AP to the first station, specifically: the interference value of the second AP to the first station is less than or equal to at least one AP.
  • the indication information includes a radio network allocation vector, where the radio network allocation vector is used by the second AP to control the first downlink data sent by the second downlink data frame sent by the second AP at the access point. End before the end of the frame transmission.
  • the access point device sends the indication information to the second AP as a broadcast pairing message, where the broadcast pairing message is used to instruct the second AP to perform parallel transmission of data with the access point device.
  • the sending module 630 is further configured to: the access point device sends the first downlink data frame to the first station by using the first channel; and the access point device sends the indication information to the second AP.
  • the second downlink data frame is sent to the second station by using the first channel, where the first downlink data frame and the second downlink data frame partially coincide in time.
  • the second site refers to a certain station that establishes communication with the certain AP; when the second AP refers to some APs that satisfy the first condition, the second A site is a site that establishes a communication connection with several APs.
  • the access point device will schedule the first station to establish communication to send the first downlink data frame to the first station by using the first channel, where the process includes: sending the first downlink data frame to the first station.
  • the RTS frame if the first site is not set by the neighboring base service set (English: Basic Service Set, BSS), sets the radio network allocation vector NAV to reply the CTS frame to the access point device; the first AP receives the first station to send After the CTS frame, the transmission of the first downlink data frame through the first channel can be started.
  • the neighboring base service set English: Basic Service Set, BSS
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • FIG. 7 is a schematic block diagram of an access point device for wireless network communication according to an embodiment of the present invention. As shown in FIG. 7, the device 700 includes a receiving module 710 and a transmitting module 720.
  • the receiving module 710 is configured to receive the indication information sent by the first access point AP, where the indication information is used to indicate that the access point device performs parallel transmission of data with the first AP, where the access point device is first
  • the AP determines, according to the at least one AP, the interference value of the first station, the at least one AP is a neighboring AP of the first AP, and the first station is scheduled by the first AP;
  • the transmission module 720 is configured to use, by the transmission module 720, the access point device to perform parallel transmission of data with the first AP according to the indication of the indication message.
  • the receiving module 710 specifically, the receiving module 710 is configured to receive the indication information sent by the first AP, where the indication message carries the identifier information of the access point device, where the identifier information is used to indicate the access point device and the An AP performs parallel transmission of data.
  • the indication information sent by the first AP is sent to each AP in the form of a broadcast message
  • the access point device finds that the broadcast message carries its own identification information, and the access point device determines the downlink data that can be paralleled with the first AP.
  • the backoff is selected, and the silence is selected during the time when the first AP and the access point device perform parallel communication.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first station is smaller than the interference value allowed by the first station.
  • the access point device further includes a response module, where the response module is configured to: receive a pairing request frame sent by the access point device, where the pairing request frame carries an allowed interference threshold of the first station; The interference value of the access point device to the first station is smaller than the interference threshold allowed by the first station; the allowed pairing frame is returned to the first AP, where the paired frame is allowed to carry the interference value of the access point device to the first station.
  • the response module may measure the channel information of the first station to the access point device according to the CTS sent by the first station, and use the equivalent channel. Reciprocity, the interference value of the access point device to the first site can be obtained by:
  • V 2 is a precoding matrix of the access point device
  • P 2 is the transmit power of the access point device
  • the remaining APs in the neighboring APs of the first AP and located in the first station neighbor list may also obtain respective interference values to the first station through the reciprocity of the equivalent channels.
  • each AP compares the interference value of the first station with the first station.
  • the allowed interference threshold size when an AP's interference value to the first station is greater than the interference threshold allowed by the first station, will return a pairing rejection frame to the first station or return no response message.
  • the n-th AP AP interference has m values greater than the first station site allows the first interference threshold, then the m any AP in the AP returns to the first I frame or a reject station pairing does not return any Response message.
  • the n APs in the neighbor AP of the first AP receive After the pairing request frame sent by the first AP, each AP compares the interference value of the first station with the interference threshold allowed by the first station, and the interference value of the AP to the first station is less than or equal to the first.
  • the interference threshold allowed by the station is returned, a pairing permission frame is returned to the first station, and the pairing allows the frame to carry the interference value of the AP to the first station.
  • any one of the s APs returns a pairing permission frame to the first station, where S returns to the first station AP pairing allows the frame carries the first interference value S AP sites, in order to select the access point AP to the first device based on the interference value of the received response message carried in each of the first AP sites .
  • the access point device further includes a selection module, where the selection module is configured to: receive a list of neighboring APs reported by each site associated with the access point device; The AP list selects a second station that is outside the coverage of the first AP, so that the access point device sends the second downlink data frame to the second station.
  • the selection module is configured to: receive a list of neighboring APs reported by each site associated with the access point device; The AP list selects a second station that is outside the coverage of the first AP, so that the access point device sends the second downlink data frame to the second station.
  • the second site refers to a certain station that establishes communication with the certain AP; when the access point device refers to some APs that meet the first condition, The second site refers to a site that establishes a communication connection with these several APs.
  • the transmission module 720 is specifically configured to: send, by using the first channel, a second downlink data frame to the second station, where the first channel is used to carry the first information sent by the first AP to the first station. a downlink data frame; controlling a length of the second downlink data frame according to the network allocation vector information, so that the second downlink data frame ends before the end of the first downlink data frame transmission.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • FIG. 8 is a schematic block diagram of an access point device according to another embodiment of the present invention.
  • the device 800 includes a processor 810, a memory 820, a bus system 830, a receiver 840, and a transmitter 850.
  • the processor 810, the memory 820, the receiver 840, and the transmitter 850 are connected by a bus system 830 for storing instructions for executing instructions stored in the memory 820 and controlling the receiver 840. Receiving information and controlling the transmitter 850 to transmit information.
  • the receiver 840 is configured to acquire an interference value of the at least one AP to the first station, where the first station is scheduled by the access point device, and the processor 810 is configured to: according to the interference value of the at least one AP to the first station, Determining a second AP from the at least one AP; the transmitter 850 is configured to send indication information to the second AP, where the indication information is used to indicate that the second AP and the access point device perform parallel transmission of data.
  • the embodiment of the invention selects an access point device that has less influence on the communication link being communicated, and instructs the access point device to perform parallel data transmission with the access point device that is communicating, thereby enabling It is sufficient to improve the utilization of network spectrum resources while ensuring that the communication link is communicating normally.
  • the processor 810 may be a central processing unit (“CPU"), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 820 can include read only memory and random access memory and provides instructions and data to the processor 810. A portion of the memory 820 may also include a non-volatile random access memory.
  • the bus system 830 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 system 830 in the figure.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the 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 820, and the processor 810 reads the information in the memory 820 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the at least one AP is a neighbor AP of the first AP.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first station is smaller than the interference threshold allowed by the first station.
  • the receiver 840 is further configured to: send a pairing request frame to the n APs in the neighboring cell AP of the access point device, where the pairing request frame carries the interference allowed by the first station. a threshold; receiving a pairing allowed frame returned by at least one of the n APs, wherein the interference value of the at least one AP to the first station is less than an interference threshold, and the pairing allowed frame returned by each AP of the at least one AP carries each The interference value of the AP to the first site.
  • the processor 810 is further configured to: when the at least one condition is met, the access point device sends a pair to the n APs in the neighboring AP of the access point device.
  • Request frame The access point device receives an indication message for initiating AP pairing; the access point device needs The length of the first downlink data frame sent to the first station is greater than or equal to the threshold length; the signal strength of the clear transmission frame CTS sent by the first station received by the access point device is greater than or equal to the threshold strength.
  • the processor 810 is further configured to: obtain the neighbor AP list that is reported by the first station; and select, from the APs in the neighbor AP of the access point device. The n APs in the neighboring cell AP list.
  • the processor 810 is further configured to: select a second AP from the at least one AP, where the interference value of the second AP to the first station is less than or equal to the rest of the at least one AP. The interference value of the AP to the first station.
  • the indication information includes a radio network allocation vector, where the radio network allocation vector is used by the second AP to control the first downlink data sent by the second downlink data frame sent by the second AP at the access point. End before the end of the frame transmission.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • FIG. 9 is a schematic block diagram of an access point device according to another embodiment of the present invention.
  • the device 900 includes a processor 910, a memory 920, a bus system 930, a receiver 940, and a transmitter 950.
  • the processor 910, the memory 920, the receiver 940, and the transmitter 950 are connected by a bus system 930 for storing instructions for executing instructions stored by the memory 920 and controlling the receiver 940.
  • the information is received and the transmitter 950 is controlled to transmit information.
  • the receiver 940 is configured to receive the indication information sent by the first AP, where the indication information is used to indicate that the access point device performs parallel transmission of data with the first AP, where the access point device is configured by the first AP according to at least one
  • the interference value of the AP to the first station is determined by the at least one AP, the access point device is located in the neighboring AP of the first AP, and the first station is scheduled by the first AP; the transmitter 950 is used by the access point device according to the Instructing the message to perform parallel transmission of data with the first AP.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • the at least one AP has a data transmission requirement.
  • the interference value of the at least one AP to the first station is smaller than the interference value allowed by the first station.
  • the receiver 940 is configured to receive an access point device.
  • the pairing request frame is sent, and the pairing request frame carries the allowed interference threshold of the first station;
  • the processor 910 is configured to determine that the interference value of the access point device to the first station is smaller than the interference threshold allowed by the first station;
  • the 950 is configured to return an allowed pairing frame to the first AP, where the pairing frame is allowed to carry the interference value of the access point device to the first station.
  • the processor 910 is configured to: receive a list of neighboring APs reported by each site associated with the access point device; and report neighbors according to the sites associated with the access point device.
  • the area AP list selects a second station that is outside the coverage of the first AP, so that the second AP sends the second downlink data frame to the second station.
  • the transmitter 950 is configured to send, by using the first channel, a second downlink data frame to the second station, where the first channel is used to carry the first downlink sent by the first AP to the first station. a row data frame; controlling a length of the second downlink data frame according to the network allocation vector information, so that the second downlink data frame ends before the end of the first downlink data frame transmission.
  • Embodiments of the present invention can ensure that communication is being performed by selecting an access point device that has less influence on a communication link being communicated, and instructing the access point device to perform parallel data transmission with the access point device that is communicating. Under the premise of normal communication of the link, improve the utilization of network spectrum resources.
  • association relationship describing the associated object indicates that there may be three relationships.
  • a and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
  • the character / in this paper generally indicates that the contextual object is an OR relationship.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be Ignore, or not execute.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例提供一种无线网络通信的方法与接入点设备，该方法包括：第一接入点AP获取至少一个AP对第一站点的干扰值，其中，第一站点由第一AP调度；第一AP根据至少一个AP对第一站点的干扰值，从至少一个AP中确定第二AP；第一AP向第二AP发送指示信息，该指示信息用于指示第二AP与第一AP进行数据的并行传输。本发明实施例提供的无线网络通信的方法和接入点设备通过选择对正在通信的通信链路影响较小的第二AP，并指示该第二AP与第一AP进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。

Description

一种无线网络通信的方法和接入点设备 技术领域
本发明涉及无线通信领域，并且更具体地，涉及一种无线网络通信的方法和接入点设备。
背景技术
现有无线保真(英文：Wireless Fidelity，简称：WiFi)技术采用载波侦听多路访问/冲突避免(英文：Carrier Sense Multiple Access with Collision Avoidance，简称：SMA/CA)协议，通过固定阈值的空闲信道评估(英文：Clear Channel Assessment，简称：CCA)机制和请求发送/清除发送(英文：Request To Send/Clear To Send，简称：RTS/CTS)机制实现干扰避免，即让通过竞争获得信道使用权的通信对独占信道资源，只有在该通信对通信完毕后，周围的其它通信对才可以竞争该信道资源。这种方式对正在通信的链路实现了较好的保护，但在高密度组网情况下，频谱的利用效率受到了较大限制。
动态CCA机制中的CCA阈值可以根据网络状况进行调整，因此采用动态CCA机制可以大幅度提高高密度组网情况下的频谱利用效率，但是由此产生的是并行的通信对之间的网络冲突，正在通信的链路很可能由于网络冲突而产生中断。
因此，在现有技术中，无法确保正在通信的链路正常通信的前提下，有效利用网络频谱资源。
发明内容
本发明实施例提供一种无线网络通信的方法和接入点设备，能够在确保正在通信的链路正常通信的前提下，有效利用网络频谱资源。
第一方面，提供了一种无线网络通信的方法，包括：第一接入点AP获取至少一个AP对第一站点的干扰值，其中，所述第一站点由所述第一AP调度；所述第一AP根据所述至少一个AP对所述第一站点的干扰值，从所述至少一个AP中确定第二AP；所述第一AP向所述第二AP发送指示信息，所述指示信息用于指示所述第二AP与所述第一AP进行数据的并行传输。
结合第一方面，在第一方面的第一种可能的实现方式中，所述至少一个AP为所述第一AP的邻居AP。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述至少一个AP具有数据传输需求。
结合第一方面的第一或第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述至少一个AP对所述第一站点的干扰值小于所述第一站点所允许的干扰阈值。
结合第一方面的第一或第二种可能的实现方式，在第一方面的第四种可能的实现方式中，所述方法还包括：所述第一AP向所述邻居AP中的n个AP发送配对请求帧，所述配对请求帧携带所述第一站点所允许的干扰阈值；所述第一AP接收所述n个AP中的所述至少一个AP返回的配对允许帧，其中，所述至少一个AP对所述第一站点的干扰值小于所述干扰阈值，且所述至少一个AP中的每个AP返回的配对允许帧携带所述每个AP对所述第一站点的干扰值。
结合第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述方法还包括：当满足下列至少一种条件时，所述第一AP向所述邻居AP中的n个AP发送所述配对请求帧：所述第一AP接收到启动AP配对的指示消息；所述第一AP需要向所述第一站点发送的第一下行数据帧长度大于或等于阈值长度；和所述第一AP接收到的所述第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度。
结合第一方面的第四种或第五种可能的实现方式，在第一方面的第六种可能的实现方式中，所述方法还包括：所述第一AP获取所述第一站点上报的所述第一站点邻区AP列表；所述第一AP从所述邻居AP中选出位于所述第一站点邻区AP列表中的所述n个AP。
结合第一方面或第一方面的第一至第六种可能的实现方式，在第一方面的第七种可能的实现方式中，所述方法还包括：所述第一AP从所述至少一个AP中选择所述第二AP，其中，所述第二AP对所述第一站点的干扰值小于或等于所述至少一个AP中的其余AP对所述第一站点的干扰值。
结合第一方面或第一方面的第一至第七种可能的实现方式，在第一方面的第八种可能的实现方式中，所述指示信息包括无线网络分配矢量，所述无线网络分配矢量用于所述第二AP控制所述第二AP发送的第二下行数据帧 在所述第一AP发送的第一下行数据帧传输结束前结束。
第二方面，提供了一种无线网络通信的方法，其特征在于，包括：第二接入点AP接收第一接入点AP发送的指示信息，所述指示信息用于指示所述第二AP与所述第一AP进行数据的并行传输，其中，所述第二AP由所述第一AP根据至少一个AP对第一站点的干扰值从所述至少一个AP中确定，所述至少一个AP为所述第一AP的邻居AP，所述第一站点由所述第一AP调度；所述第二AP根据所述指示消息的指示，与所述第一AP进行数据的并行传输。
结合第二方面，在第二方面的第一种可能的实现方式中，所述至少一个AP具有数据传输需求。
结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述至少一个AP对所述第一站点的干扰值小于所述第一站点允许的干扰值。
结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第三种可能的实现方式中，在所述第二AP接收所述第一AP发送的指示消息之前，所述方法还包括：所述第二AP接收所述第一AP发送的配对请求帧，所述配对请求帧中携带所述第一站点的允许干扰阈值；所述第二AP确定所述第二AP对所述第一站点的干扰值小于所述第一站点允许的干扰阈值且所述第二AP具有数据传输需求；所述第二AP向所述第一AP返回允许配对帧，其中，所述允许配对帧中携带所述第二AP对所述第一站点的干扰值。
结合第二方面或第二方面的第一种至第三种可能的实现方式，在第二方面的第四种可能的实现方式中，在所述第二AP根据所述指示消息的指示，与所述第一AP进行数据的并行传输之前，所述方法还包括：所述第二AP接收所述第二AP关联的各个站点上报的邻区AP列表；所述第二AP根据所述各个站点上报的邻区AP列表，选择位于所述第一AP覆盖范围之外的第二站点。
结合第二方面的第四种可能的实现方式，在第二方面的第五种可能的实现方式中，所述指示消息中携带网络分配矢量信息，所述第二AP根据所述指示消息的指示，与所述第一AP进行数据的并行传输包括：所述第二AP通过第一信道向所述第二站点发送下行数据帧；所述第二AP根据所述网络分配矢量信息控制所述第二下行数据帧的长度，使得所述第二下行数据帧在 所述第一下行数据帧传输结束前结束。
第三方面，提供了一种无线通信的接入点设备，包括：获取模块，所述获取模块用于获取至少一个接入点AP对第一站点的干扰值，其中，所述第一站点由所述接入点设备调度；确定模块，所述确定模块用于根据所述至少一个AP对所述第一站点的干扰值，从所述至少一个AP中确定第二AP；发送模块，所述发送模块用于向所述第二AP发送指示信息，所述指示信息用于指示所述第二AP与所述接入点设备进行数据的并行传输。
结合第三方面，在第三方面的第一种肯能的实现方式中，所述至少一个AP为所述第一AP的邻居AP。
结合第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述至少一个AP具有数据传输需求。
结合第三方面的第一或第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述至少一个AP对所述第一站点的干扰值小于所述第一站点所允许的干扰阈值。
结合第三方面的第一或第二种可能的实现方式，在第三方面的第四种可能的实现方式中，所述获取模块还包括：第一发送单元，所述第一发送单元用于向所述邻区AP中的n个AP发送配对请求帧，所述配对请求帧携带所述第一站点所允许的干扰阈值；第一接收单元，所述第一接收单元用于接收所述n个AP中的所述至少一个AP返回的配对允许帧，其中，所述至少一个AP对所述第一站点的干扰值小于所述干扰阈值，且所述至少一个AP中的每个AP返回的配对允许帧携带所述每个AP对所述第一站点的干扰值。
结合第三方面的第四种可能的实现方式，在第三方面的第五种可能的实现方式中，所述设备还包括判断模块，所述判断模块用于：当满足下列至少一种条件时，所述接入点设备向所述邻居AP中的n个AP发送所述配对请求帧：所述接入点设备接收到启动AP配对的指示消息；所述接入点设备需要向所述第一站点发送的第一下行数据帧长度大于或等于阈值长度；和所述接入点设备接收到的所述第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度。
结合第三方面的第四或第五种可能的实现方式，在第三方面的第六种可能的实现方式中，所述获取模块还包括第一选择单元，所述第一选择单元用于：获取所述第一站点上报的所述第一站点的邻区AP列表；从所述邻区AP 中选出位于所述第一站点的邻区AP列表中的所述n个AP。
结合第三方面的第四至第六种可能的实现方式，在第三方面的第七种可能的实现方式中，所述确定模块还包括第二选择单元，所述第二选择单元用于：从所述至少一个AP中选择所述第二AP，其中，所述第二AP对所述第一站点的干扰值小于或等于所述至少一个AP中的其余AP对所述第一站点的干扰值。
结合第三方面或第三方面的第一至第七种可能的实现方式，在第一方面的第八种可能的实现方式中，所述指示信息包括无线网络分配矢量，所述无线网络分配矢量用于所述第二AP控制所述第二AP发送的第二下行数据帧在所述第一AP发送的第一下行数据帧传输结束前结束。
第四方面，提供了一种无线网络的接入点设备，包括：接收模块，所述接收模块用于接收第一接入点AP发送的指示信息，所述指示信息用于指示所述接入点设备与所述第一AP进行数据的并行传输，其中，所述接入点设备由所述第一AP根据至少一个AP对第一站点的干扰值从所述至少一个AP中确定，所述第一AP为所述第一AP的邻居AP，所述第一站点由所述第一AP调度；传输模块，所述接入点设备根据所述指示消息的指示，与所述第一AP进行数据的并行传输。
结合第四方面，在第四方面的第一种可能的实现方式中，所述至少一个AP具有数据传输需求。
结合第四方面或第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述至少一个AP对所述第一站点的干扰值小于所述第一站点允许的干扰值。
结合第四方面或第四方面的第一种可能的实现方式，在第四方面的第三种可能的实现方式中，所述接入点设备还包括响应模块，所述响应模块用于：接收所述接入点设备发送的配对请求帧，所述配对请求帧中携带所述第一站点的允许干扰阈值；确定所述接入点设备对所述第一站点的干扰值小于所述第一站点允许的干扰阈值；向所述第一AP返回允许配对帧，其中，所述允许配对帧中携带所述接入点设备对所述第一站点的干扰值。
结合第四方面或第四方面的第一种至第三种可能的实现方式，在第四方面的第四种可能的实现方式中，所述接入点设备还包括选择模块，所述选择模块用于：接收所述接入点设备所关联的各个站点上报的邻区AP列表；根 据的所述各个站点上报的邻区AP列表，选择位于所述接入点设备覆盖范围之外的第二站点。
结合第四方面的第四种可能的实现方式，在第四方面的第五种可能的实现方式中，所述传输模块具体用于：通过第一信道向所述第二站点发送下行数据帧；根据所述网络分配矢量信息控制所述第二下行数据帧的长度，使得所述第二下行数据帧在所述第一下行数据帧传输结束前结束。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是可应用本发明实施例的系统场景示例的示意图。
图2是本发明实施例提供的一种无线网络通信的方法的流程图。
图3是本发明另一实施例提供的一种无线网络通信的方法的流程图。
图4A是本发明实施例提供的系统场景示例的示意图。
图4B是本发明实施例提供的一种无线网络通信的方法的流程图。
图5A是本发明实施例提供的系统场景示例的示意图。
图5B是本发明实施例提供的一种无线网络通信的方法的流程图。
图6是本发明实施例提供的一种接入点设备的示意性框图。
图7是本发明另一实施例提供的一种接入点设备的示意性框图。
图8是本发明另一实施例提供的一种接入点设备的示意性框图。
图9是本发明再一实施例提供的一种接入点设备的示意性框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创 造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应理解，本发明实施例的技术方案可以应用于各种WLAN网络，可以是WiFi网络、还可以是WiMAX(Worldwide Interoperability for Microwave Access，简称为“全球微波互联接入”)或WAPI(WLAN Authentication and Privacy Infrastructure，简称为“无线局域网认证与保密基础结构”)网络等，本发明实施例对此不作限定。
站点(station，简称为“STA”)可以通过(Access Point，简称为“AP”)与因特网连接。该站点可以是WLAN网络传感器应用服务中具有信号采集、数据处理、无线通信等功能的设备，也可以是WLAN网络除传感器应用服务外其它应用服务中与接入点进行通信的设备。例如，该站点可以是固定终端，也可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机等。
AP可以是单独的AP，该AP受接入控制器(Access Controller，简称为“AC”)的控制与管理，也可以是包括AC功能的AP，还可以是与基站构成一种特定的基站，本发明实施例对此不作限定。
还应理解，本发明实施例提供的在WLAN中建立直接链路的方法及装置主要应用于基于调度的WLAN系统中，包括完全基于调度的WLAN系统以及基于调度和竞争相结合的WLAN系统，但也可以应用于基于竞争的WLAN系统，本发明实施例对此不做限定。
图1是可应用本发明实施例的系统场景示例的示意图。
如图1所示，该WIFI网络系统包括多个AP和STA，其中AP1竞争到信道后与STA1建立通信。
在RTS/CTS方式中实现避免干扰的方式中，AP1竞争到信道后与STA1建立通信，周边通信节点通过RTS帧和CTS帧中的网络分配矢量(英文：Network Allocation Vector，简写：NAV)确定AP1与STA1之间的通信时间，上述周边通信节点在该通信时间内保持静默，因而可以保证AP1与STA1之间的通信不会被干扰，但同时该RTS/CTS方式严重限制了多个网络节点之间的并行通信，在WIFI密集组网场景下的通信效率较低。
而在固定阈值CCA或动态阈值CCA实现的并发通信情况下，AP2与STA2之间可能会建立通信连接，AP3与STA3之间也可能会建立通信连接，这时AP2或AP3可能会对STA1造成较大的干扰，固定阈值的CCA一定程度 上能避免干扰，但也降低了并发通信的概率，影响通信效率，而动态CCA可以大大提高WIFI密集组网场景下的并发通信概率，但同时冲突概率也大为增加。
本发明实施例提供一种无线网络通信的方法和接入点设备，能够在确保正在通信的链路正常通信的前提下，有效利用网络频谱资源。也就是在图1中，确保AP1与STA1之间正常通信的前提下，选择对AP1与STA1之间通信链路影响最小的AP与AP1进行并行的数据传输，以能够有效提供网络频谱资源的利用率。
图2是本发明实施例提供的一种无线网络通信的方法的流程图。
步骤210，第一接入点AP获取至少一个AP对第一站点的干扰值，其中，第一站点由第一AP调度。
步骤220，第一AP根据至少一个AP对第一站点的干扰值，从至少一个AP中确定第二AP。
步骤230，第一AP向第二AP发送指示信息，该指示信息用于指示第二AP与第一AP进行数据的并行传输。
在步骤210中，第一站点由第一AP调度是指在第一AP检测到信道空闲后需要向第一站点发送下行数据。
在步骤220中，具体地，第一AP从上述至少一个AP当中选择对第一站点干扰影响最小的一个或多个AP作为第二AP，也可以叫做配对AP，该第二AP允许与第一AP进行并行的数据传输，换句话说，第二AP允许与第一AP进行配对，应理解，第二AP可以指某一个AP，也可以指某几个AP。
在步骤230中，第一AP向第二AP发送指示消息，该指示消息用于指示第二AP与第一AP进行数据的下行并行传输。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
可选地，作为本发明一个实施例，上述至少一个AP为第一AP的邻居AP，其中，第一AP的邻居AP包括第一AP自己发现的AP和/或第一AP所关联的各个站点发现的AP。应理解，第一AP的邻居AP也可以是预先配置给第一AP的邻居AP，例如，第一AP的邻居AP列表中已经保存了该第 一AP的邻居AP，本发明不限与此。
可选地，作为本发明一个实施例，上述至少一个AP具有数据传输需求，也就是说该至少一个AP有数据需要发送。可选地，作为本发明一个实施例，上述至少一个AP对第一站点的干扰至小于第一站点所允许的干扰阈值。具体地，第一AP可以根据各个AP对第一站点的干扰值与第一站点的允许干扰阈值进行比较，从而确定至少一个AP。应注意，第一站点所允许的干扰阈值是上述第一AP为第一站点设置的干扰阈值。
可选地，作为本发明一个实施例，第一AP向邻居AP中的n个AP发送配对请求帧，该配对请求帧中没有携带第一站点所允许的干扰阈值时，这n个AP中允许与第一AP进行并行的数据传输的AP都可以返回允许配对帧，每个允许配对帧中携带每个AP对第一站点的干扰值，第一AP通过比较每个允许配对帧中携带的干扰值与第一站点的干扰阈值的大小确定第二AP。
可选地，作为本发明一个实施例，第一AP获取至少一个AP对第一站点的干扰值，包括：第一AP向第一AP的邻居AP中的n个AP发送配对请求帧，该配对请求帧携带第一站点所允许的干扰阈值；第一AP接收n个AP中的至少一个AP返回的配对允许帧，其中，该至少一个AP对第一站点的干扰值小于干扰阈值，且至少一个AP中的每个AP返回的配对允许帧携带每个AP对所述第一站点的干扰值。应理解，该至少一个AP是指上述n个AP接收到第一AP发送的配对请求帧后，向第一AP返回允许配对帧的一个或多个AP。
具体地，在第一AP向第一AP的邻居AP中的n个AP发送配对请求帧的过程可以是：第一AP在向邻区内的AP发送的配对请求帧中携带该n个AP中某个AP的标识信息，以轮询的方式向第一AP的邻居AP中的n个AP发送配对请求帧，以从该n个AP中选择第二AP以进行并行数据的传输，应理解，第一AP也可以使用广播消息向第一AP的邻居AP中的n个AP发送配对请求，本发明不限于此。
可选地，作为本发明一个实施例，第一AP向第一AP的邻居AP中的n个AP发送配对请求帧，该配对请求帧携带第一站点所允许的干扰阈值，在第一AP的邻居AP中的n个AP接收到第一AP发送的配对请求帧之后，每个AP分别比较自身对第一站点的干扰值与第一站点允许的干扰阈值大小，当某个AP对第一站点的干扰值大于第一站点允许的干扰阈值时，将向第一 站点返回配对拒绝帧或者不返回任何响应消息。具体地，该n个AP中有m个AP对第一站点的干扰值大于第一站点允许的干扰阈值，那么这m个AP中任意一个APi向第一站点返回配对拒绝帧或者不返回任何响应消息，以便于第一AP根据接收到的响应消息选择第二AP。
可选地，作为本发明一个实施例，第一AP向邻居AP中的n个AP发送配对请求帧，该配对请求帧携带第一站点所允许的干扰阈值，在第一AP邻居AP中的n个AP接收到第一AP发送的配对请求帧之后，每个AP分别比较自身对第一站点的干扰值与第一站点允许的干扰阈值大小，当某个AP对第一站点的干扰值小于或等于第一站点允许的干扰阈值时，将向第一站点返回配对允许帧，该配对允许帧中携带该AP对第一站点的干扰值。具体地，例如，该n个AP中有s个AP对第一站点的干扰值小于或等于第一站点允许的干扰阈值，并且这s个AP具有数据传输需求，那么这s个AP中任意一个APs向第一站点返回配对允许帧，该APs向第一站点返回配对允许帧中携带APs对第一站点的干扰值，以便于第一AP根据接收到的响应消息中携带的各个AP对第一站点的干扰值选择第二AP。
可选地，作为本发明一个实施例，当满足下列至少一种条件时，第一AP向第一AP的邻居AP中的n个AP发送所述配对请求帧：第一AP接收到启动AP配对的指示消息；第一AP需要向第一站点发送的第一下行数据帧长度大于或等于阈值长度；第一AP接收到的第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度。具体地，作为第一AP的选择第二AP进行并行数据传输的启动条件，需要满足以下条件中的至少一个：第一AP接收到启动AP配对的指示消息，在接收到该指示消息后第一AP确定可以从第一AP的邻居AP中的n个AP中选择第二AP，以与第二AP进行数据的并行传输；第一AP需要向第一站点发送的第一下行数据帧长度大于或等于的阈值长度值可以是100字节，也可以是其它设定长度，本发明不限于此；接收到的第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度，该阈值强度的具体数值可以根据CTS门限设置，例如可以是-82dBm。
应理解，启动AP配对的条件可以是满足上述其中一个条件，也可以是同时满足上述几个条件的一种组合，当不满足设定的启动条件时，则第一AP不启动AP配对，即不在第一AP的邻居AP中的AP当中选择第二AP进行配对并指示该第二AP进行下行数据的并行传输，避免周围通信节点对 该第一STA造成通信干扰。
可选地，作为本发明一个实施例，第一AP在不需要满足任何条件的情况下，直接启动AP配对，从n个AP中选择第二AP进行数据的并行传输。
可选地，作为本发明一个实施例，在第一AP向邻居AP中的n个AP发送配对请求帧之前，方法还包括：第一AP获取所述第一站点上报的第一站点邻区AP列表；第一AP从第一AP的邻居AP中的AP中选出位于第一站点邻区AP列表中的n个AP。换句话说，该n个AP是指位于第一AP的邻居AP中且存在于第一站点上报的第一站点邻区AP列表中的AP。
可选地，作为本发明一个实施例，第一AP从至少一个AP中选择第二AP，其中，第二AP对第一站点的干扰值小于或等于至少一个AP中的其余AP对第一站点的干扰值。具体地，例如第一AP接收到k个AP向第二AP返回的允许配对帧，每个允许配对帧中携带每个AP对第一站点的干扰值，第一AP通过比较该k个干扰值，选择一个或多个AP作为第二AP，以便于与第一AP进行配对以进行并行的下行数据传输。应理解，第二AP对第一站点的干扰值小于或等于至少一个AP中的其余AP对第一站点的干扰值具体是指：第二AP对第一站点的干扰值小于或等于至少一个AP中除了第二AP之外的其它AP对第一站点的干扰值。
可选地，作为本发明一个实施例，指示信息包括无线网络分配矢量，该无线网络分配矢量用于第二AP控制第二AP发送的第二下行数据帧在第一AP发送的第一下行数据帧传输结束前结束。
可选地，作为本发明一个实施例，第一AP向第二AP发送指示信息为广播配对消息，该广播配对消息用于指示第二AP与第一AP进行数据的并行传输。
可选地，作为本发明一个实施例，该无线网络通信的方法还包括:第一AP通过第一信道向第一站点发送第一下行数据帧；第一AP向第二AP发送指示信息用于指示第二AP通过第一信道向第二站点发送第二下行数据帧，其中，第一下行数据帧与第二下行数据帧在时间上部分重合。
应理解，当第二AP特指某一个AP时，第二站点指的是与该某个AP建立通信的某一个站点；当第二AP指某几个满足第一条件的AP时，第二站点指与这某几个AP建立通信连接的站点。
具体地，第一AP在检测到第一信道空闲后，将调度第一站点建立通信， 以通过第一信道向第一站点发送第一下行数据帧，该过程包括：向第一站点发送RTS帧，若第一站点未被邻区基础服务集合(英文：Basic Service Set，简写：BSS)设置无线网络分配矢量NAV则给第一AP回复CTS帧；第一AP接收到第一站点发送的CTS帧后，可以开始通过该第一信道进行第一下行数据帧的传输。
应理解，第一AP从至少一个AP确定第二AP，并指示该第二AP可以与第一AP进行并行的数据传输过程可以发生在第一AP与第一站点建立第一信道连接之前，也可以发生在第一AP与第二STA建立第一信道连接之后。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
图3是本发明实施例提供的一种无线网络通信的方法的流程图
步骤310，第二接入点AP接收第一接入点AP发送的指示信息，该指示信息用于指示第二AP与第一AP进行数据的并行传输，其中，第二AP由第一AP根据至少一个AP对第一站点的干扰值从该至少一个AP中确定，该至少一个AP为第一AP的邻居AP，第一站点由第一AP调度；
步骤320，第二AP根据上述指示消息的指示，与第一AP进行数据的并行传输。
在步骤310中，具体地，第二AP接收第一AP发送的指示信息，该指示消息中携带第二AP的标识信息，用于指示第二AP与第一AP进行数据的并行传输。当第一AP发送的指示信息以广播消息的形式向各个AP发送时，第二AP发现该广播消息中携带自己的标识信息，则第二AP确定可以与第一AP进行并行的下行数据传输，而在第一AP的邻居AP中的其它AP在第一AP发送的广播消息中没有发现自己的标识信息，则选择退避，在第一AP与第二AP进行并行通信的时间内选择静默。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
可选地，作为本发明一个实施例，该至少一个AP具有数据传输需求。
可选地，作为本发明一个实施例，该至少一个AP对第一站点的干扰至小于第一站点允许的干扰值。
可选地，作为本发明一个实施例，在第二AP接收第一AP发送的指示消息之前，方法还包括：第二AP接收第一AP发送的配对请求帧，配对请求帧中携带第一站点的允许干扰阈值；第二AP确定第二AP对第一站点的干扰值小于第一站点允许的干扰阈值；第二AP向第一AP返回允许配对帧，其中，允许配对帧中携带第二AP对第一站点的干扰值。
具体地，第一AP在竞争第一信道与第一站点进行下行数据传输时，第二AP可以根据第一站点发送的CTS测得该第一站点到第二AP的信道信息，利用等效信道的互易性，可以通过下式得到第二AP对第一站点的干扰值：
Figure PCTCN2015076315-appb-000001
其中，
Figure PCTCN2015076315-appb-000002
为第二AP与第一站点的等效信道矩阵，V2为第二AP的预编码矩阵，所述P2为第二AP的发送功率。
应理解，在第一AP的邻居AP中且位于第一站点邻区列表中的其余AP也可以通过等效信道的互易性获得各自对第一站点的干扰值。当第一AP向第一AP的邻居AP中的n个AP发送配对请求帧中携带第一站点所允许的干扰阈值时，每个AP分别比较自身对第一站点的干扰值与第一站点允许的干扰阈值大小，当某个AP对第一站点的干扰值大于第一站点允许的干扰阈值时，将向第一站点返回配对拒绝帧或者不返回任何响应消息。具体地，该n个AP中有m个AP对第一站点的干扰值大于第一站点允许的干扰阈值，那么这m个AP中任意一个APi向第一站点返回配对拒绝帧或者不返回任何响应消息。
可选地，当第一AP向第一AP的邻居AP中的n个AP发送配对请求帧中携带第一站点所允许的干扰阈值，在第一AP的邻居AP中的n个AP接收到第一AP发送的配对请求帧之后，每个AP分别比较自身对第一站点的干扰值与第一站点允许的干扰阈值大小，当某个AP对第一站点的干扰值小于或等于第一站点允许的干扰阈值且具有数据传输需求时，将向第一站点返回配对允许帧，该配对允许帧中携带该AP对第一站点的干扰值。具体地，例如，该n个AP中有s个AP对第一站点的干扰值小于或等于第一站点允许的干扰阈值且这s个AP有数据传输需求，那么这s个AP中任意一个APs向第一站点返回配对允许帧，该APs向第一站点返回配对允许帧中携带APs对第一站点的干扰值，以便于第一AP根据接收到的响应消息中携带的各个AP对第一站点的干扰值选择第二AP。
可选地，作为本发明一个实施例，第二AP根据指示消息的指示，与第一AP进行数据的并行传输之前，方法还包括：第二AP接收第二AP所关联的各个站点上报的邻区AP列表；第二AP根据第二AP所关联的各个站点上报的邻区AP列表，选择位于第一AP覆盖范围之外的第二站点，以便于所述第二AP向所述第二站点发送第二下行数据帧。应注意，第一AP的覆盖范围是指该第一AP发送的CTS的信号强度大于或等于某个阈值的区域，该覆盖范围的大小可以根据实际需要进行更新。
应理解，当第二AP特指某一个AP时，第二站点指的是与该某个AP建立通信的某一个站点；当第二AP指某几个满足第一条件的AP时，第二站点指与这某几个AP建立通信连接的站点。
可选地，作为本发明一个实施例，指示消息中携带网络分配矢量信息，第二AP根据指示消息的指示，与第一AP进行数据的并行传输包括：第二AP通过第一信道向第二站点发送第二下行数据帧，第一信道用于承载所述第一AP向第一站点发送的第一下行数据帧；第二AP根据网络分配矢量信息控制第二下行数据帧的长度，使得第二下行数据帧在第一下行数据帧传输结束前结束。
应理解，图2与图3实施例提供的方法可以由同一个具有特定功能的AP执行，可以是图2实施例所指的第一AP，也可是图3实施例所指的第二AP，本发明不限于此。应理解，图2和图3示出的无线网络通信的方法可以在同一接入点设备上执行，本发明不限于此。
可选地，第一站点接收第一AP通过第一信道发送的下行数据帧；第一站点向第一AP发送该第一站点的邻区AP列表。
可选地，作为本发明一个实施例，第一站点旁听在该第一站点的邻区内的AP的信标BEACON，以得到该第一站点的邻区AP列表。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
图4A和图4B是本发明实施例提供的一种通信的方法的流程图。
如图4A示出的，AP1、AP2和AP3分别为三个接入点，STA1、STA2和STA3分别为三个站点，BBS1、BBS2和BBS3分别为三个基础服务集合，这三个基础服务集合的覆盖范围不同(图中三个圆形区域)。
如图4B示出的通信的方法的流程图，整个通信的过程可以分为三个阶段：信道竞争阶段、AP配对阶段以及数据传输阶段。
在信道竞争阶段中，(1)当AP1检测到信道(即图2实施例中所指的第一信道)空闲后调度STA1(即图2实施例中所指的第一STA)，向STA1发送RTS帧，该STA1未被临区BBS(即图4A中所指的BBS1或BBS2)设置NAV，则给AP1回复CTS；
(2)STA1周围的邻区列表中的AP，即处于STA1传输覆盖范围内的AP，也就是指图中BBS1，如图4B所示为AP2、AP3，可根据收到的STA1发送的CTS测得STA1到APx的信道矩阵
Figure PCTCN2015076315-appb-000003
其中x＝2、3。
(3)AP1收到STA1发送的CTS后，竞争到信道。这时AP1可以直接启动AP配对，从STA1覆盖范围内选择进行配对的第二AP，此外，AP1还可以根据以下至少一个条件确定是否启动AP配对阶段：接收启动AP配对的指示消息；需要传输给STA1的数据长度超过Lengthth，例如是100字节；AP1收到的STA1发送的CTS的信号强度大于某个阈值RSSIth，该阈值RSSIth可以通过CTS的门限阈值确定。应理解，AP1启动AP配对的条件可以满足上述条件中的一个，也可以是需要同时满足上述几个条件的组合。
AP1通过确定满足启动AP配对的条件时，能够与AP1覆盖范围内其它的AP进行配对，进行并行的下行数据传输，因而能够有效提高对频谱资源的利用率。
AP1的覆盖范围是指该AP1发送的CTS的信号强度大于或等于某个阈值的区域，该覆盖范围的大小可以根据实际需要进行更新。
当AP1不启动AP配对时，则直接进入与STA1的数据传输阶段。
在AP配对阶段，具体过程如图4B所示，(1)AP1向处于其覆盖范围内且属于STA1的临区AP列表中的APx依次轮询发送配对请求帧，如图4B所示，x＝2、3。STA1的邻区AP列表可由STA1空闲时旁听邻区AP的发送的BEACON帧或者邻区测量帧获得，并且STA1定期向AP1报告其邻区AP列表，例如STA1可以以周期T向AP1报告其邻区AP列表，也可以不定期的向AP1报告其邻区AP列表。该配对请求帧PREQ的目的地址为APx，并在PREQ中携带STA1允许的干扰值Ith，Ith表示AP1和STA1通信的主链路能承受的最大干扰。AP1给APx发送PREQx超过一段时间，例如，可以是分布式帧间间隙(英文：Distributed Inter-frame Spacing，简写：DIFS)或者其它帧 间隙时间，本发明不限于此，未收到APx的回应或者AP1收到了APx对PREQ的回应后，AP1继续对列表中的下一个AP发送配对请求帧PREQ；
(2)APx收到AP1发送的PREQx帧后，根据信道竞争阶段获得的等效信道
Figure PCTCN2015076315-appb-000004
利用下式计算APx传输对STA1造成的干扰值Ix:
Figure PCTCN2015076315-appb-000005
其中Vx为APx选择的预编码矩阵，Px为APx的发送功率。如果Ix≤Ith且APx有数据需要发送，则APx给AP1回送配对允许帧PACKx，该PACKx帧携带Ix值；否则，APx给AP1回送配对拒绝帧PNACKx或者不向AP1返回任何信息；
(3)AP2根据APx回复的PACK帧，选取Ix最小的一个AP作为配对AP，如图4B所示，假设AP2确定为配对AP，则AP1广播配对响应帧(英文：Pair response，简写：PRES)，该帧携带AP2的AP标识信息。收到过PREQ帧但未收到PRES帧的邻区AP保持静默。收到PRES帧的邻区AP根据PRES携带的AP标识信息可判断其是否允许与AP1并发下行传输。如图4A所示，AP2收到PRES可知其允许与AP1并发下行传输，AP3收到PRES可知其未允许与AP1并发下行传输。
在数据传输阶段，1)AP1在发送PRES后，经过短帧时间间隔(英文：Short interframe space，简写：SIFS)后向STA1发送数据；
(2)AP2收到AP1发送的PRES帧以后知道其可与AP1并发。AP2根据各STA上报的邻区列表选择不处于AP1覆盖区域的STA进行下行传输，如图4A所示，假设选择的STA为STA2。AP2给STA1发送RTS，收到STA2的CTS后AP2与STA2进行下行数据传输；
(3)AP2根据AP1发送的PRES帧携带的NAV控制其与STA2的数据传输在AP1和STA1之间的数据传输结束前完成。本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，能够在实现并行通信的同时，减少并发通信链路间的冲突，减小并行通信的网络节点对主链路的干扰，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
图5A和图5B是本发明另一实施例提供的一种通信的方法的流程图。
如图5A示出的，AP1、AP2和AP3分别为三个接入点，STA1、STA2和STA3分别为三个站点，BBS1、BBS2和BBS3分别为三个基础服务集合， 这三个基础服务集合的覆盖范围不同(图中三个圆形区域)。
如图5B示出的通信的方法的流程图，整个通信的过程可以分为三个阶段：AP配对阶段、信道竞争阶段以及数据传输阶段。
在AP配对阶段，具体过程如图5B所示，(1)AP1向处于其覆盖范围内且属于STA1的临区AP列表中的APx依次轮询发送配对请求帧，如图5B所示，x＝2、3。STA1的邻区AP列表可由STA1空闲时旁听邻区AP的发送的……获得，并且STA1定期向AP1报告其邻区AP列表，例如STA1可以以周期T向AP1报告其邻区AP列表，也可以不定期的向AP1报告其邻区AP列表。该配对请求帧PREQ的目的地址为APx，并在PREQ中携带STA1允许的干扰值Ith，Ith表示AP1和STA1通信的主链路能承受的最大干扰。AP1给APx发送PREQx超过一段时间(例如，可以是DIFS时间或者其它帧间间隙时间)未收到APx的回应或者AP1收到了APx对PREQ的回应后，AP1继续对列表中的下一个AP发送配对请求帧PREQ；
(2)APx收到AP1发送的PREQx帧后，根据信道竞争阶段获得的等效信道
Figure PCTCN2015076315-appb-000006
利用下式计算APx传输对STA1造成的干扰值Ix:
Figure PCTCN2015076315-appb-000007
其中Vx为APx选择的预编码矩阵，Px为APx的发送功率。如果Ix≤Ith且APx有数据需要发送，则APx给AP1回送配对允许帧(英文：Pair Acknowledgement，简写：PACKx)，该PACKx帧携带Ix值；否则，APx给AP1回送配对拒绝帧PNACKx或者不向AP1返回任何信息；
(3)AP1根据APx回复的PACK帧，选取Ix最小的一个AP作为配对AP，如图5A所示，假设AP2确定为配对AP，则AP1广播配对响应帧PRES，该帧携带AP2的AP标识信息。收到过PREQ帧但未收到PRES帧的邻区AP保持静默。收到PRES帧的邻区AP根据PRES携带的AP标识信息可判断其是否允许与AP1并发下行传输。如图5B所示，AP2收到PRES可知其允许与AP1并发下行传输，AP3收到PRES可知其未允许与AP1并发下行传输。
在信道竞争阶段中，(1)当AP1(即图2实施例中所指的第一AP)，检测到信道(即图2实施例中所指的第一信道)空闲后调度STA1(即图2实施例中所指的第一STA)，向STA1发送RTS帧，该STA1未被临区BBS(即图4B中所指的BBS2或BBS3)设置NAV则给AP1回复CTS；
(2)STA1周围的邻区AP，即处于STA1传输覆盖范围内的AP，也就 是指图中BBS1，如图5B所示为AP2、AP3，可根据收到的STA1发送的CTS测得STA1到APx的信道信息
Figure PCTCN2015076315-appb-000008
其中x＝2、3。
(3)AP1收到STA1发送的CTS后，竞争到信道。这时AP1可以直接启动AP配对，从STA1覆盖范围内选择进行配对的第二AP，此外，AP1还可以根据以下至少一个条件确定是否启动AP配对阶段：接收启动AP配对的指示消息；需要传输给STA1的数据长度超过Lengthth，例如是100字节；AP1收到的STA1发送的CTS的信号强度大于某个阈值RSSIth，该阈值RSSIth可以通过CTS的门限阈值确定。应理解，AP1启动AP配对的条件可以满足上述条件中的一个，也可以是需要同时满足上述几个条件的组合。
当AP1不启动AP配对时，则直接进入与STA1的数据传输阶段。
在数据传输阶段，(1)AP1在发送PRES后SIFS时间向STA1发送数据；
(2)AP2收到AP1发送的PRES帧以后知道其可与AP1并发。AP2根据各STA上报的邻区列表选择不处于AP1覆盖区域的STA进行下行传输，如图5A所示，假设选择的STA为STA2。AP2给STA1发送RTS，收到STA2的CTS后AP2与STA2进行下行数据传输；
(3)AP2根据AP1发送的PRES帧携带的NAV控制其与STA2的数据传输在AP1和STA1之间的数据传输结束前完成。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，能够在实现并行通信的同时，减少并发通信链路间的冲突，减小并行通信的网络节点对主链路的干扰，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
图1至图5所示的实施例详细介绍了无线网络通信的方法，下面结合图6至图9将详细介绍无线网络通信的接入点设备和站点设备。
图6是本发明实施例提供的一种无线网络通信的接入点设备的示意性框图。如图6所示，该设备600包括：获取模块610、确定模块620和发送模块630。
获取模块610，所述获取模块610用于获取至少一个AP对第一站点的干扰值，其中，第一站点由接入点设备调度。
确定模块620，确定模块620用于根据至少一个AP对第一站点的干扰值，从至少一个AP中确定第二AP。
发送模块630，发送模块630用于向第二AP发送指示信息，指示信息用于指示第二AP与接入点设备进行数据的并行传输。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
可选地，作为本发明一个实施例，上述至少一个AP为所述第一AP的邻居AP。
可选地，作为本发明一个实施例，上述至少一个AP具有数据传输需求。
可选地，上述至少一个AP对第一站点的干扰值小于第一站点所允许的干扰阈值。可选地，作为本发明一个实施例，获取模块610还包括：第一发送单元，第一发送单元用于向该接入点设备邻居AP中的n个AP发送配对请求帧，配对请求帧携带第一站点所允许的干扰阈值；第一接收单元，第一接收单元用于接收n个AP中的至少一个AP返回的配对允许帧，其中，至少一个AP对第一站点的干扰值小于干扰阈值，且至少一个AP中的每个AP返回的配对允许帧携带每个AP对第一站点的干扰值。应理解，该至少一个AP是指上述n个AP接收到接入点设备发送的配对请求帧后，向该接入点设备返回允许配对帧的一个或多个AP。
具体地，在接入点设备向该接入点设备邻居AP中的n个AP发送配对请求帧的过程可以是：接入点设备在向邻区内的AP发送的配对请求帧中携带该n个AP中某个接收AP的标识信息，以轮询的方式向接入点设备的邻居AP中的n个AP发送配对请求帧，以从这个邻区内的AP中选择第二AP以进行并行数据的传输。
可选地，作为本发明一个实施例，该接入点设备还包括判断模块，判断模块用于：当满足下列至少一种条件时，接入点设备向该接入点设备的邻居AP中的n个AP发送配对请求帧：接入点设备接收到启动AP配对的指示消息；接入点设备需要向第一站点发送的第一下行数据帧长度大于或等于阈值长度；接入点设备接收到的第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度。具体地，作为接入点设备的选择第二AP进行并行数据传输的启动条件，需要满足以下条件中的至少一个：接入点设备接收到启动AP配对的指示消息，在接收到该指示消息后接入点设备确定可以从接入点设备的邻居AP中的n个AP中选择第二AP，以与第二AP进行数据的并行 传输；接入点设备需要向第一站点发送的第一下行数据帧长度大于或等于的阈值长度值可以是100字节，也可以是其它设定长度，本发明不限于此；接收到的第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度，该阈值强度的具体数值可以根据CTS门限阈值设置，例如可以是-82dBm。应理解，启动AP配对的条件可以是满足上述其中一个条件，也可以是同时满足上述几个条件的一种组合，当不满足设定的启动条件时，则接入点设备不启动AP配对，即不在接入点设备的邻居AP当中选择第二AP进行配对并指示该第二AP进行下行数据的并行传输，避免周围通信节点对该第一站点造成通信干扰。
可选地，作为本发明一个实施例，接入点设备在不需要满足任何条件的情况下，直接启动AP配对，从n个AP中选择第二AP进行数据的并行传输。
可选地，作为本发明一个实施例，获取模块610还包括第一选择单元，第一选择单元用于：获取第一站点上报的所述邻区AP列表；从接入点设备的邻居AP中选出位于邻区AP列表中的所述n个AP。
可选地，作为本发明一个实施例，确定模块620还包括第二选择单元，所述第二选择单元用于：从至少一个AP中选择第二AP，其中，第二AP对第一站点的干扰值小于或等于至少一个AP中的其余AP对所述第一站点的干扰值。具体地，例如接入点设备接收到k个AP向第二AP返回的允许配对帧，每个允许配对帧中携带每个AP对第一站点的干扰值，接入点设备通过比较该k个干扰值，选择一个或多个AP作为第二AP，以便于与接入点设备进行配对以进行并行的下行数据传输。应理解，第二AP对第一站点的干扰值小于或等于至少一个AP中的其余AP对第一站点的干扰值具体是指：第二AP对第一站点的干扰值小于或等于至少一个AP中除了第二AP之外的其它AP对第一站点的干扰值。
可选地，作为本发明一个实施例，指示信息包括无线网络分配矢量，无线网络分配矢量用于第二AP控制第二AP发送的第二下行数据帧在接入点发送的第一下行数据帧传输结束前结束。
可选地，作为本发明一个实施例，接入点设备向第二AP发送指示信息为广播配对消息，该广播配对消息用于指示第二AP与接入点设备进行数据的并行传输。
可选地，作为本发明一个实施例，该发送模块630还用于:接入点设备通过第一信道向第一站点发送第一下行数据帧；接入点设备向第二AP发送指示信息用于指示第二AP通过第一信道向第二站点发送第二下行数据帧，其中，第一下行数据帧与第二下行数据帧在时间上部分重合。
应理解，当第二AP特指某一个AP时，第二站点指的是与该某个AP建立通信的某一个站点；当第二AP指某几个满足第一条件的AP时，第二站点指与这某几个AP建立通信连接的站点。
具体地，接入点设备在检测到第一信道空闲后，将调度第一站点建立通信，以通过第一信道向第一站点发送第一下行数据帧，该过程包括：向第一站点发送RTS帧，若第一站点未被邻区基础服务集合(英文：Basic Service Set，简写：BSS)设置无线网络分配矢量NAV则给接入点设备回复CTS帧；第一AP接收到第一站点发送的CTS帧后，可以开始通过该第一信道进行第一下行数据帧的传输。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
图7是本发明实施例提供的一种无线网络通信的接入点设备的示意性框图。如图7所示，该设备700包括：接收模块710和传输模块720。
接收模块710，接收模块710用于接收第一接入点AP发送的指示信息，该指示信息用于指示接入点设备与第一AP进行数据的并行传输，其中，接入点设备由第一AP根据至少一个AP对第一站点的干扰值从该至少一个AP中确定，该至少一个AP为第一AP的邻区AP，第一站点由第一AP调度；
传输模块720，传输模块720用于接入点设备根据指示消息的指示，与第一AP进行数据的并行传输。在接收模块710中，具体地，该接受模块710用于接收第一AP发送的指示信息，该指示消息中携带该接入点设备的标识信息，该标识信息用于指示接入点设备与第一AP进行数据的并行传输。当第一AP发送的指示信息以广播消息的形式向各个AP发送时，接入点设备发现该广播消息中携带自己的标识信息，则接入点设备确定可以与第一AP进行并行的下行数据传输，而在第一AP邻居AP中的其它AP在第一AP发送的广播消息中没有发现自己的标识信息，则选择退避，在第一AP与接入点设备进行并行通信的时间内选择静默。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
可选地，作为本发明一个实施例，该至少一个AP具有数据传输需求。
可选地，作为本发明一个实施例，该至少一个AP对第一站点的干扰值小于第一站点允许的干扰值。
可选地，作为本发明一个实施例，接入点设备还包括响应模块，响应模块用于：接收接入点设备发送的配对请求帧，配对请求帧中携带第一站点的允许干扰阈值；确定接入点设备对第一站点的干扰值小于所述第一站点允许的干扰阈值；向第一AP返回允许配对帧，其中，允许配对帧中携带接入点设备对第一站点的干扰值。
具体地，第一AP在竞争第一信道与第一站点进行下行数据传输时，响应模块可以根据第一站点发送的CTS测得该第一站点到接入点设备的信道信息，利用等效信道的互易性，可以通过下式得到接入点设备对第一站点的干扰值：
Figure PCTCN2015076315-appb-000009
其中，
Figure PCTCN2015076315-appb-000010
为接入点设备与第一站点的等效信道矩阵，V2为接入点设备的预编码矩阵，所述P2为接入点设备的发送功率。
应理解，在第一AP的邻区AP中且位于第一站点邻区列表中的其余AP也可以通过等效信道的互易性获得各自对第一站点的干扰值。当第一AP向第一AP的邻区AP中的n个AP发送配对请求帧中携带第一站点所允许的干扰阈值时，每个AP分别比较自身对第一站点的干扰值与第一站点允许的干扰阈值大小，当某个AP对第一站点的干扰值大于第一站点允许的干扰阈值时，将向第一站点返回配对拒绝帧或者不返回任何响应消息。具体地，该n个AP中有m个AP对第一站点的干扰值大于第一站点允许的干扰阈值，那么这m个AP中任意一个APi向第一站点返回配对拒绝帧或者不返回任何响应消息。
可选地，当第一AP向第一AP的邻区AP中的n个AP发送配对请求帧中携带第一站点所允许的干扰阈值，在第一AP的邻区AP中的n个AP接收到第一AP发送的配对请求帧之后，每个AP分别比较自身对第一站点的干扰值与第一站点允许的干扰阈值大小，当某个AP对第一站点的干扰值小 于或等于第一站点允许的干扰阈值时，将向第一站点返回配对允许帧，该配对允许帧中携带该AP对第一站点的干扰值。具体地，该n个AP中有s个AP对第一站点的干扰值小于或等于第一站点允许的干扰阈值，那么这s个AP中任意一个APs向第一站点返回配对允许帧，该APs向第一站点返回配对允许帧中携带APs对第一站点的干扰值，以便于第一AP根据接收到的响应消息中携带的各个AP对第一站点的干扰值选择接入点设备。
可选地，作为本发明一个实施例，接入点设备还包括选择模块，选择模块用于：接收接入点设备所关联的的各个站点上报的邻区AP列表；根据各个站点上报的邻区AP列表，选择位于第一AP覆盖范围之外的第二站点，以便于接入点设备向第二站点发送第二下行数据帧。
应理解，当接入点设备特指某一个AP时，第二站点指的是与该某个AP建立通信的某一个站点；当接入点设备指某几个满足第一条件的AP时，第二站点指与这某几个AP建立通信连接的站点。
可选地，作为本发明一个实施例，传输模块720具体用于：通过第一信道向第二站点发送第二下行数据帧，第一信道用于承载第一AP向第一站点发送的第一下行数据帧；根据网络分配矢量信息控制第二下行数据帧的长度，使得第二下行数据帧在第一下行数据帧传输结束前结束。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
图8是本发明另一实施例提供的一种接入点设备的示意性框图。该设备800包括处理器810、存储器820、总线系统830、接收器840和发送器850。其中，处理器810、存储器820、接收器840和发送器850通过总线系统830相连，该存储器820用于存储指令，该处理器810用于执行该存储器820存储的指令，并控制该接收器840接收信息以及控制该发送器850发送信息。其中，该接收器840用于获取至少一个AP对第一站点的干扰值，其中，第一站点由接入点设备调度；该处理器810用于根据至少一个AP对第一站点的干扰值，从至少一个AP中确定第二AP；该发送器850用于向第二AP发送指示信息，指示信息用于指示第二AP与接入点设备进行数据的并行传输。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能 够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
应理解，在本发明实施例中，该处理器810可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器810还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
该存储器820可以包括只读存储器和随机存取存储器，并向处理器810提供指令和数据。存储器820的一部分还可以包括非易失性随机存取存储器。
该总线系统830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系统830。
在实现过程中，上述方法的各步骤可以通过处理器810中的硬件的集成逻辑电路或者软件形式的指令完成。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处理器执行完成，或者用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820，处理器810读取存储器820中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
可选地，作为本发明一个实施例，上述至少一个AP为所述第一AP的邻居AP。
可选地，作为本发明一个实施例，上述至少一个AP具有数据传输需求。
可选地，上述至少一个AP对第一站点的干扰值小于第一站点所允许的干扰阈值。
可选地，作为本发明一个实施例，该接收器840还用于：向该接入点设备的邻区AP中的n个AP发送配对请求帧，配对请求帧携带第一站点所允许的干扰阈值；接收n个AP中的至少一个AP返回的配对允许帧，其中，至少一个AP对第一站点的干扰值小于干扰阈值，且至少一个AP中的每个AP返回的配对允许帧携带每个AP对第一站点的干扰值。
可选地，作为本发明一个实施例，该处理器810还用于：当满足下列至少一种条件时，接入点设备向的该接入点设备的邻区AP中的n个AP发送配对请求帧：接入点设备接收到启动AP配对的指示消息；接入点设备需要 向第一站点发送的第一下行数据帧长度大于或等于阈值长度；接入点设备接收到的第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度。
可选地，作为本发明一个实施例，该处理器810还用于：获取第一站点上报的所述邻区AP列表；从该接入点设备的邻区AP中内的AP中选出位于邻区AP列表中的所述n个AP。
可选地，作为本发明一个实施例，该处理器810还用于：从至少一个AP中选择第二AP，其中，第二AP对第一站点的干扰值小于或等于至少一个AP中的其余AP对所述第一站点的干扰值。
可选地，作为本发明一个实施例，指示信息包括无线网络分配矢量，无线网络分配矢量用于第二AP控制第二AP发送的第二下行数据帧在接入点发送的第一下行数据帧传输结束前结束。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
图9是本发明另一实施例提供的一种接入点设备的示意性框图。该设备900包括处理器910、存储器920、总线系统930、接收器940和发送器950。其中，处理器910、存储器920、接收器940和发送器950通过总线系统930相连，该存储器920用于存储指令，该处理器910用于执行该存储器920存储的指令，并控制该接收器940接收信息以及控制该发送器950发送信息。其中，该接收器940用于接收第一AP发送的指示信息，该指示信息用于指示接入点设备与第一AP进行数据的并行传输，其中，接入点设备由第一AP根据至少一个AP对第一站点的干扰值从该至少一个AP中确定，接入点设备位于第一AP的邻区AP中，第一站点由第一AP调度；该发送器950用于接入点设备根据指示消息的指示，与第一AP进行数据的并行传输。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
可选地，作为本发明一个实施例，该至少一个AP具有数据传输需求。
可选地，作为本发明一个实施例，该至少一个AP对第一站点的干扰值小于第一站点允许的干扰值。
可选地，作为本发明一个实施例，该接收器940用于接收接入点设备发 送的配对请求帧，配对请求帧中携带第一站点的允许干扰阈值；该处理器910用于确定接入点设备对第一站点的干扰值小于所述第一站点允许的干扰阈值；该发送器950用于向第一AP返回允许配对帧，其中，允许配对帧中携带接入点设备对第一站点的干扰值。
可选地，作为本发明一个实施例，该处理器910用于：接收接入点设备所关联的的各个站点上报的邻区AP列表；根据接入点设备所关联的的各个站点上报的邻区AP列表，选择位于第一AP覆盖范围之外的第二站点，以便于第二AP向第二站点发送第二下行数据帧。
可选地，作为本发明一个实施例，发送器950用于：通过第一信道向第二站点发送第二下行数据帧，第一信道用于承载第一AP向第一站点发送的第一下行数据帧；根据网络分配矢量信息控制第二下行数据帧的长度，使得第二下行数据帧在第一下行数据帧传输结束前结束。
本发明实施例通过选择对正在通信的通信链路影响较小的接入点设备，并指示该接入点设备与正在通信的接入点设备进行并行的数据传输，从而能够在确保正在通信的链路正常通信的前提下，提高网络频谱资源利用率。
应理解，在本发明实施例中，术语和/或仅仅是一种描述关联对象的关联关系，表示可以存在三种关系。例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符/，一般表示前后关联对象是一种或的关系。
本领域普通技术人员可以意识到，结合本文中所公开的实施例中描述的各方法步骤和单元，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各实施例的步骤及组成。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。本领域普通技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示 意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (30)

  1. 一种无线网络通信的方法，其特征在于，包括：
    第一接入点AP获取至少一个AP对第一站点的干扰值，其中，所述第一站点由所述第一AP调度；
    所述第一AP根据所述至少一个AP对所述第一站点的干扰值，从所述至少一个AP中确定第二AP；
    所述第一AP向所述第二AP发送指示信息，所述指示信息用于指示所述第二AP与所述第一AP进行数据的并行传输。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个AP为所述第一AP的邻居AP。
  3. 根据权利要求2所述的方法，其特征在于，所述至少一个AP具有数据传输需求。
  4. 根据权利要求2或3所述的方法，其特在在于，所述至少一个AP对所述第一站点的干扰值小于所述第一站点所允许的干扰阈值。
  5. 根据权利要求2或3所述的方法，其特征在于，所述第一AP获取所述至少一个AP对第一站点的干扰值，包括：
    所述第一AP向所述邻居AP中的n个AP发送配对请求帧，所述配对请求帧携带所述第一站点所允许的干扰阈值；
    所述第一AP接收所述n个AP中的所述至少一个AP返回的配对允许帧，其中，所述至少一个AP对所述第一站点的干扰值小于所述干扰阈值，且所述至少一个AP中的每个AP返回的配对允许帧携带所述每个AP对所述第一站点的干扰值。
  6. 根据权利要求5所述的方法，其特征在于，所述第一AP向所述邻居AP内的n个AP发送配对请求帧，包括：
    当满足下列至少一种条件时，所述第一AP向所述邻居AP中的n个AP发送所述配对请求帧：
    所述第一AP接收到启动AP配对的指示消息；
    所述第一AP需要向所述第一站点发送的第一下行数据帧长度大于或等于阈值长度；和
    所述第一AP接收到的所述第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度。
  7. 根据权利要求5至6中任一项所述的方法，其特征在于，在所述第一AP向所述邻居AP中的n个AP发送配对请求帧之前，所述方法还包括：
    所述第一AP获取所述第一站点上报的所述第一站点的邻区AP列表；
    所述第一AP从所述邻居AP中选出位于所述第一站点的邻区AP列表中的所述n个AP。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述第一AP根据所述至少一个AP对所述第一站点的干扰值，从所述至少一个AP中确定第二AP，包括：
    所述第一AP从所述至少一个AP中选择所述第二AP，其中，所述第二AP对所述第一站点的干扰值小于或等于所述至少一个AP中的其余AP对所述第一站点的干扰值。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述指示信息包括所述第一站点的无线网络分配矢量，所述无线网络分配矢量用于所述第二AP控制所述第二AP发送的第二下行数据帧在所述第一AP发送的第一下行数据帧传输结束前结束。
  10. 一种无线网络通信的方法，其特征在于，包括：
    第二接入点AP接收第一接入点AP发送的指示信息，所述指示信息用于指示所述第二AP与所述第一AP进行数据的并行传输，其中，所述第二AP由所述第一AP根据至少一个AP对第一站点的干扰值从所述至少一个AP中确定，所述至少一个AP为所述第一AP的邻居AP，所述第一站点由所述第一AP调度；
    所述第二AP根据所述指示消息的指示，与所述第一AP进行数据的并行传输。
  11. 根据权利要求10所述的方法，其特征在于，所述至少一个AP具有数据传输需求。
  12. 根据权利要求10或11所述的方法，其特征在于，所述至少一个AP对所述第一站点的干扰值小于所述第一站点允许的干扰值。
  13. 根据权利要求10或11所述的方法，其特征在于，在所述第二AP接收所述第一AP发送的指示消息之前，所述方法还包括：
    所述第二AP接收所述第一AP发送的配对请求帧，所述配对请求帧中携带所述第一站点的允许干扰阈值；
    所述第二AP确定所述第二AP对所述第一站点的干扰值小于所述第一站点允许的干扰阈值；
    所述第二AP向所述第一AP返回允许配对帧，其中，所述允许配对帧中携带所述第二AP对所述第一站点的干扰值。
  14. 根据权利要求10至13所述的方法，其特征在于，在所述第二AP根据所述指示消息的指示，与所述第一AP进行数据的并行传输之前，所述方法还包括：
    所述第二AP接收所述第二AP关联的各个站点上报的邻区AP列表；
    所述第二AP根据所述各个站点上报的邻区AP列表，选择位于所述第一AP覆盖范围之外的第二站点，以便于所述第二AP向所述第二站点发送第二下行数据帧。
  15. 根据权利要求14所述的方法，其特征在于，所述指示消息中携带网络分配矢量信息，所述第二AP根据所述指示消息的指示，与所述第一AP进行数据的并行传输包括：
    所述第二AP通过第一信道向所述第二站点发送所述第二下行数据帧，所述第一信道用于承载所述第一AP向第一站点发送的第一下行数据帧；
    所述第二AP根据所述网络分配矢量信息控制所述第二下行数据帧的长度，使得所述第二下行数据帧在所述第一下行数据帧传输结束前结束。
  16. 一种无线通信的接入点设备，其特征在于，包括：
    获取模块，所述获取模块用于获取至少一个接入点AP对第一站点的干扰值，其中，所述第一站点由所述接入点设备调度；
    确定模块，所述确定模块用于根据所述至少一个AP对所述第一站点的干扰值，从所述至少一个AP中确定第二AP；
    发送模块，所述发送模块用于向所述第二AP发送指示信息，所述指示信息用于指示所述第二AP与所述接入点设备进行数据的并行传输。
  17. 根据权利要求16所述的接入点设备，其特征在于，所述至少一个AP为所述第一AP的邻居AP。
  18. 根据权利要求17所述的接入点设备，其特征在于，所述至少一个AP具有数据传输需求。
  19. 根据权利要求17或18所述的接入点设备，其特征在于，所述至少一个AP对所述第一站点的干扰值小于所述第一站点所允许的干扰阈值。
  20. 根据权利要求17或18所述的接入点设备，其特征在于，所述获取模块还包括：
    第一发送单元，所述第一发送单元用于向所述邻居AP中的n个AP发送配对请求帧，所述配对请求帧携带所述第一站点所允许的干扰阈值；
    第一接收单元，所述第一接收单元用于接收所述n个AP中的所述至少一个AP返回的配对允许帧，其中，所述至少一个AP对所述第一站点的干扰值小于所述干扰阈值，且所述至少一个AP中的每个AP返回的配对允许帧携带所述每个AP对所述第一站点的干扰值。
  21. 根据权利要求20所述的接入点设备，其特征在于，所述设备还包括判断模块，所述判断模块用于：
    当满足下列至少一种条件时，所述接入点设备向所述邻居AP中的n个AP发送所述配对请求帧：
    所述接入点设备接收到启动AP配对的指示消息；
    所述接入点设备需要向所述第一站点发送的第一下行数据帧长度大于或等于阈值长度；和
    所述接入点设备接收到的所述第一站点发送的清除发送帧CTS的信号强度大于或等于阈值强度。
  22. 根据权利要求20或21所述的接入点设备，其特征在于，所述获取模块还包括第一选择单元，所述第一选择单元用于：
    获取所述第一站点上报的所述第一站点的邻区AP列表；
    从所述邻居AP中选出位于所述第一站点的邻区AP列表中的所述n个AP。
  23. 根据权利要求20至22中任一项所述的接入点设备，其特征在于，所述确定模块还包括第二选择单元，所述第二选择单元用于：
    从所述至少一个AP中选择所述第二AP，其中，所述第二AP对所述第一站点的干扰值小于或等于所述至少一个AP中的其余AP对所述第一站点的干扰值。
  24. 根据权利要求16至23中任一项所述的接入点设备，其特征在于，所述指示信息包括所述第一站点的无线网络分配矢量，所述无线网络分配矢量用于所述第二AP控制所述第二AP发送的第二下行数据帧在所述接入点设备发送的第一下行数据帧传输结束前结束。
  25. 一种无线网络的接入点设备，其特征在于，包括：
    接收模块，所述接收模块用于接收第一接入点AP发送的指示信息，所述指示信息用于指示所述接入点设备与所述第一AP进行数据的并行传输，其中，所述接入点设备由所述第一AP根据至少一个AP对第一站点的干扰值从所述至少一个AP中确定，所述至少一个AP为所述第一AP的邻居AP，所述第一站点由所述第一AP调度；
    传输模块，所述传输模块用于所述接入点设备根据所述指示消息的指示，与所述第一AP进行数据的并行传输。
  26. 根据权利要求25所述的接入点设备，其特征在于，所述至少一个AP具有数据传输需求。
  27. 根据权利要求25或26所述的接入点设备，其特征在于，所述至少一个AP对所述第一站点的干扰值小于所述第一站点允许的干扰值。
  28. 根据权利要求25或26所述的接入点设备，其特征在于，所述接入点设备还包括响应模块，所述响应模块用于：
    接收所述接入点设备发送的配对请求帧，所述配对请求帧中携带所述第一站点的允许干扰阈值；
    确定所述接入点设备对所述第一站点的干扰值小于所述第一站点允许的干扰阈值；
    向所述第一AP返回允许配对帧，其中，所述允许配对帧中携带所述接入点设备对所述第一站点的干扰值。
  29. 根据权利要求25或28所述的接入点设备，其特征在于，所述接入点设备还包括选择模块，所述选择模块用于：
    接收所述接入点设备所关联的各个站点上报的邻区AP列表；
    根据所述各个站点上报的邻区AP列表，选择位于所述第一AP覆盖范围之外的第二站点，以便于所述接入点设备向所述第二站点发送第二下行数据帧。
  30. 根据权利要求29所述的接入点设备，其特征在于，所述传输模块具体用于：
    通过第一信道向所述第二站点发送所述第二下行数据帧，所述第一信道用于承载所述第一AP向第一站点发送的第一下行数据帧；
    根据所述网络分配矢量信息控制所述第二下行数据帧的长度，使得所述 第二下行数据帧在所述第一下行数据帧传输结束前结束。
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