WO2015042876A1 - 信道接入方法及设备 - Google Patents

信道接入方法及设备 Download PDF

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Publication number
WO2015042876A1
WO2015042876A1 PCT/CN2013/084469 CN2013084469W WO2015042876A1 WO 2015042876 A1 WO2015042876 A1 WO 2015042876A1 CN 2013084469 W CN2013084469 W CN 2013084469W WO 2015042876 A1 WO2015042876 A1 WO 2015042876A1
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WO
WIPO (PCT)
Prior art keywords
channel
access
transmission opportunity
opportunity window
compete
Prior art date
Application number
PCT/CN2013/084469
Other languages
English (en)
French (fr)
Inventor
陶源
杨浔
姜艳平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380075914.8A priority Critical patent/CN105144824B/zh
Priority to PCT/CN2013/084469 priority patent/WO2015042876A1/zh
Publication of WO2015042876A1 publication Critical patent/WO2015042876A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a channel access method and device.
  • 802.11-based WLANs use devices that allow any basic service set (Basic Service Set, BSS for short), including access points (APs) and stations (Stations, referred to as STAs). ) Access method for shared channels.
  • BSS Basic Service Set
  • APs access points
  • STAs stations
  • BSS basic service set
  • APs access points
  • STAs stations
  • STAs stations
  • shared channels In a densely deployed scenario, the same channel may be occupied by multiple adjacent BSSs. The devices in the BSS occupying the same channel access the channel in a competitive manner, so that the devices in the overlapping area face more intense competition, and the probability of collision becomes larger, thereby reducing the throughput of the BSS.
  • the prior art proposes a method of using a BSS time division access channel in a distributed structure.
  • This method allows each BSS to have its own time to occupy the channel independently.
  • the sending indication information notifies other BSSs that channel access is not performed during the time period, and the BSS that receives the indication information determines when to perform channel access according to the time indicated in the indication information, thereby ensuring each The throughput of the BSS during the segment of the exclusive channel.
  • the above method ensures that a certain BSS independently occupies a channel in a certain period of time, but cannot meet the requirement of allowing a plurality of BSSs to simultaneously share channels in certain scenarios on the basis of the fairness principle.
  • the embodiments of the present invention provide a channel access method and device, which are used to allow different BSSs to share channels on the basis of the principle of ensuring fairness.
  • the first aspect provides a channel access method, including:
  • the channel access control unit receives information reported by each access point AP that contends to access the same channel, and determines, according to the information, a transmission opportunity window used by each AP to contend for access to the channel;
  • the channel access control unit determines, according to a preset shared channel policy, whether other APs are allowed to compete with the AP for accessing the channel at the same time in the transmission opportunity window of each AP; If the determination result is allowed, the channel access control unit sends indication information that allows other APs to simultaneously contend for the transmission opportunity window of the access channel to the AP corresponding to the transmission opportunity window and allows simultaneous competition for access to the The other APs of the channel, such that the devices in the basic service set BSS where the AP corresponding to the transmission opportunity window and the devices in the BSS where other APs that are allowed to simultaneously access the channel are located are simultaneously contending in the transmission opportunity window. Enter the channel.
  • the method further includes: if the determination result is not allowed, the channel access control unit does not allow other APs to simultaneously compete for access
  • the indication information of the transmission opportunity window of the channel is sent to the AP corresponding to the transmission opportunity window, so that the equipment in the BSS where the AP corresponding to the transmission opportunity window contends to access the channel in the transmission opportunity window.
  • the channel access control unit determines each AP according to a preset shared channel policy. Whether the other APs are allowed to compete with the AP for accessing the channel at the same time in the transmission opportunity window, including:
  • the channel access control unit determines whether other APs and the AP are allowed in the transmission opportunity window of each AP according to the priority of the BSS of each AP. Competing to access the channel at the same time;
  • the channel access control unit determines whether other APs are allowed to compete with the AP in the transmission opportunity window of each AP according to the code of the commercial protocol that each AP complies with. Access to the channel.
  • the channel access control unit determines each AP according to a priority of a BSS where each AP is located. Whether the other APs are allowed to compete with the AP for accessing the channel at the same time in the transmission opportunity window, including:
  • the channel access control unit determines, according to the priority of the BSS where each AP is located, the priority of the BSS whose priority is allowed in the transmission opportunity window of each AP is higher than the priority of the AP or the BSS where the BSS of the AP is located.
  • the APs of the same priority as the BSS of the AP are simultaneously contending for access to the channel;
  • the channel access control unit determines, according to the code of the commercial protocol that each AP complies with, whether the other APs are allowed to simultaneously access the channel with the AP in the transmission opportunity window of each AP, including: The channel access control unit determines that the same code APs of the compliant commercial protocol can simultaneously contend for access to the channel within the transmission opportunity window of each other according to the code of the commercial protocol that each AP complies with.
  • the channel access control unit sends indication information that allows other APs to simultaneously contend for a transmission opportunity window of the channel, and sends the information to the AP corresponding to the transmission opportunity window and allows simultaneous access to the channel.
  • Other APs including:
  • the channel access control unit will allow other APs to simultaneously contend for the start time and end time of the transmission opportunity window of the access channel, and send the AP corresponding to the transmission opportunity window and allow simultaneous access to the channel.
  • the channel access control unit will allow other APs to simultaneously contend for the start time and length of the transmission opportunity window of the channel, and send the AP corresponding to the transmission opportunity window and allow simultaneous access to the channel. Other APs.
  • the method further includes: the channel access control unit sending a start frame sending time and an ending frame sending time to each AP, so that the The AP sends a first start frame to the STAs in the BSS where the AP is located, and sends an end frame to the STAs in the BSS where the AP is located to indicate the AP.
  • the STAs in the BSS contend for the access to the channel in the time defined by the first start frame and the end frame; wherein, the time that the first start frame and the end frame are limited does not exceed the AP Transmission opportunity window; or
  • the channel access control unit sends a start frame transmission time to each AP and a length of time indicating that the STA in the BSS where each AP is contending to access the channel, so that the AP is at the start frame sending time. And sending, by the station STA in the BSS where the AP is located, a second start frame, and carrying, in the second start frame, a length of time indicating that the STA contends to access the channel, to indicate that the AP is located in the BSS Starting from the second start frame, the STA contends to access the channel within a length of time indicating that the STA contends to access the channel; wherein, the length of time indicating that the STA contends to access the channel is not The transmission opportunity window of the AP is exceeded.
  • the information reported by the AP includes: a priority of a BSS where the AP is located, and the AP complies with At least one of a code of a commercial agreement, a number of STAs associated with the AP, and a load of the AP.
  • the channel access control unit is The information is used to determine a transmission opportunity window used by each AP to contend for access to the channel, including:
  • the channel access control unit determines, according to the information, a start time and an end time of a transmission opportunity window used by each AP to contend for access to the channel; or
  • the channel access control unit determines, according to the information, a start time and a length of time for each AP to contend for access to the transmission opportunity window used by the channel.
  • the transmission opportunity window of each AP has the same length of time;
  • the transmission opportunity window of each AP has a different length of time.
  • the second aspect provides a channel access method, including:
  • the access point AP When the access channel is required to be contending, the access point AP reports the information to the channel access control unit, so that the channel access control unit determines all the competing access stations according to the information reported by the APs that contend for accessing the channel. Each AP in the channel is used to contend for access to the transmission opportunity window used by the channel;
  • the indication information that is sent by the channel access control unit to indicate that the AP contends to access a transmission opportunity window that can be used by the channel;
  • the AP contends to access the channel within a transmission opportunity window indicated by the indication information.
  • the AP receives a transmission opportunity window that is sent by the channel access control unit and is used to indicate that the AP competes to access the channel. Instructions, including: Receiving, by the AP, a start time and an end time of the transmission opportunity window sent by the channel access control unit; or
  • the AP receives a start time and a length of time of the transmission opportunity window sent by the channel access control unit.
  • the AP contends to access the After the channel, it also includes:
  • the AP indicates, in the transmission opportunity window indicated by the indication information, that the STA in the BSS where the AP is located contends to access the channel.
  • the AP in a transmission opportunity window indicated by the indication information, indicates a site in a BSS where the AP is located
  • the STA contends to access the channel, including:
  • the second start frame carries a length of time that the STA indicated by the channel access control unit contends to access the channel, to indicate that the STA starts from receiving the second start frame, where Competing for access to the channel within a time length indicated by the channel access control unit; wherein, the length of time indicated by the channel access control unit does not exceed the transmission opportunity window.
  • the method further includes:
  • the AP receives the start frame transmission time sent by the channel access control unit and the length of time indicating that the STA contends to access the channel.
  • the third aspect provides a channel access method, including:
  • the first AP determines, according to the target shared channel policy, whether the channel can be concurrently accessed in the transmission opportunity window of the second AP;
  • the first AP is based on the length and sequence of the transmission opportunity window of the first AP and the second AP. In order, the channel is contending for access in the transmission opportunity window of the first AP and the transmission opportunity window of the second AP.
  • the method further includes: when it is determined that the channel is not contending for access in the transmission opportunity window of the second AP, The first AP contends to access the channel only within a transmission opportunity window of the first AP.
  • the first AP is configured according to the shared channel policy supported by the first AP,
  • the shared channel policy supported by the second AP, before determining the target shared channel policy used by the first AP and the second AP includes:
  • the first AP receives a broadcast frame sent by the second AP, and the broadcast frame includes a shared channel policy supported by the second AP.
  • the target shared channel policy is Basic service set BSS priority sharing strategy
  • the first AP determines, according to the target shared channel policy, whether the channel can be contending for access to the channel in the transmission opportunity window of the second AP, including:
  • the first AP is based on a priority of the basic service set BSS where the first AP is located, and the foregoing The size of the priority of the BSS where the second AP is located, determining whether the channel can be simultaneously contending for access in the transmission opportunity window of the second AP, including:
  • the first AP determines that the access station may simultaneously compete in the transmission opportunity window of the second AP. Said channel.
  • the target shared channel policy is Business agreement sharing strategy
  • the first AP determines, according to the target shared channel policy, whether the channel can be contending for access to the channel in the transmission opportunity window of the second AP, including:
  • the first AP according to the code of the commercial protocol that the first AP complies with, and the second AP Compliance with the code of the commercial protocol, determining whether the channel can be simultaneously contending for access in the transmission opportunity window of the second AP, including:
  • the first AP determines that the access device may be simultaneously contending within the transmission opportunity window of the second AP. Said channel.
  • the method further includes: An AP indicates, in a transmission opportunity window of the first AP, that a station STA in a BSS where the first AP is located contends to access the channel.
  • the first AP indicates that the first AP is located in a transmission opportunity window of the first AP
  • the STAs in the BSS compete for access to the channel, including:
  • the first AP sends a first start frame and an end frame to the STA respectively in a transmission opportunity window of the first AP, to indicate that the STA is defined in the first start frame and the end frame. Competing for access to the channel during the time; or
  • the transmission opportunity window of the first AP is not exceeded.
  • the method further includes: the first AP sending the target shared channel policy to an STA in a BSS where the first AP is located, so that the Determining, according to the target shared channel policy, whether the channel can be contending for access in a transmission opportunity window of the second AP; or
  • the first AP according to the transmission opportunity window of the first AP and the second AP The length of time and the sequence of the content, the contention window of the first AP and the transmission opportunity window of the second AP, contending for access to the channel, including:
  • the sequence of transmission opportunities of the second AP is sequentially contending for access to the channel in the transmission opportunity window of the first AP and the second AP.
  • the method further includes:
  • the information that the first access point AP acquires the second AP that is in the same channel as the first AP includes:
  • the first AP receives information of the second AP that is sent by the STA that is in the coverage of the first AP and the second AP.
  • the method further includes: the first AP indicating, in a transmission opportunity window of the second AP, a BSS in the BSS where the first AP is located. The STA contends to access the channel.
  • the fourth aspect provides a channel access method, including:
  • the station STA associated with the first access point AP receives the target shared channel policy sent by the first AP, and the target shared channel policy is a shared channel policy supported by the first AP according to the first AP. Determining, by the first AP, a shared channel policy supported by the second AP accessing the same channel;
  • the STA contends to access the channel in the transmission opportunity window of the second AP according to the indication information that is sent by the second AP in the transmission opportunity window of the second AP.
  • the method further includes: the STA, according to the indication information that is sent by the first AP in a transmission opportunity window of the first AP, Competing for access to the channel within a transmission opportunity window of the first AP.
  • the STA sends, according to the indication that the first AP is sent in a transmission opportunity window of the first AP
  • the contending for accessing the channel in the transmission opportunity window of the first AP includes:
  • a second start frame sent by the first AP in a transmission opportunity window of the first AP where the second start frame includes a contention accessing the channel indicated by the first AP a length of time; the STA contends to access the channel within a time length indicated by the first AP, and the length of time indicated by the first AP does not exceed the length of the first AP.
  • the indication information that is sent by the second AP in the transmission opportunity window of the second AP, contending for accessing the channel in the transmission opportunity window of the second AP includes:
  • a fourth start frame sent by the second AP in a transmission opportunity window of the second AP where the fourth start frame includes a contention accessing the channel indicated by the second AP a length of time; the STA contends to access the channel within a time length indicated by the second AP, and the length of time indicated by the second AP does not exceed the length of time
  • the transmission time window of the second AP is described.
  • the fifth aspect provides a channel access method, including:
  • the second access point AP Transmitting, by the second access point AP, the information of the second AP to the first AP that is contending with the second AP to access the same channel, so that the first AP is configured according to the information of the first AP and the first AP
  • the information of the second AP determines the length and sequence of the transmission opportunity window used by the first AP and the second AP to access the channel respectively;
  • the target shared channel policy is determined by the first AP according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP;
  • the second AP determines, according to the target shared channel policy, whether the channel can be concurrently accessed in the transmission opportunity window of the first AP;
  • the second AP is based on the length and sequence of the transmission opportunity window of the first AP and the second AP. In order, the channel is contending for access in the transmission opportunity window of the first AP and the transmission opportunity window of the second AP.
  • the method further includes: When it is determined that the channel is not contending for access in the transmission opportunity window of the first AP, the second AP contends to access the channel only in a transmission opportunity window of the second AP.
  • the second AP sends a broadcast frame to the first AP, where the broadcast frame includes a shared channel policy supported by the second AP.
  • the second access point The information that the AP sends the second AP to the first AP that is contending with the second AP to access the same channel includes:
  • the second AP sends the information of the second AP to the first AP by using a STA that is in the coverage of the first AP and the second AP.
  • a sixth aspect provides a channel access control unit, including:
  • a receiving module configured to receive information that is reported by each AP that is contending for access to the same channel; and a first determining module, configured to determine, according to the information received by the receiving module, that each AP is used to compete for access a transmission opportunity window used by the channel;
  • a second determining module configured to determine, according to the preset shared channel policy, whether the other AP and the AP are allowed to simultaneously access the channel in the transmission opportunity window of each AP determined by the first determining module;
  • a sending module configured to: when the determining result of the second determining module is allowed, send, to the AP corresponding to the transmission opportunity window, the indication information that allows other APs to simultaneously contend for the transmission opportunity window of the channel to be allowed Competing for accessing other APs of the channel, such that the equipment in the basic service set BSS in which the AP corresponding to the transmission opportunity window is located and the equipment in the BSS in which other APs that are allowed to simultaneously access the channel are located in the transmission opportunity The channel is simultaneously contending for access to the channel.
  • the sending module is further configured to: when the determining result of the second determining module is not allowed, the other APs are not allowed to compete for access at the same time.
  • the indication information of the transmission opportunity window of the channel is sent to the AP corresponding to the transmission opportunity window, so that the equipment in the BSS where the AP corresponding to the transmission opportunity window contends to access the channel in the transmission opportunity window.
  • the second determining module is specifically configured to:
  • the BSS priority sharing policy determines whether the other APs are allowed to simultaneously access the channel with the AP in the transmission opportunity window of each AP according to the priority of the BSS of each AP; or, in the preset
  • the shared channel policy is a commercial protocol sharing policy, according to the code of the commercial protocol that each AP complies with, it is determined whether the other APs are allowed to simultaneously access the channel with the AP in the transmission opportunity window of each AP.
  • the second determining module is configured to: when the preset shared channel policy is a BSS priority sharing policy, Determining, according to the priority of the BSS of each AP, whether the other APs are allowed to simultaneously access the channel with the AP in the transmission opportunity window of each AP, including:
  • the second determining module is specifically configured to determine, according to the priority of the BSS where each AP is located, an AP or a BSS whose priority is allowed to be higher than the BSS of the AP in the transmission opportunity window of each AP.
  • the AP with the same priority as the BSS of the AP is contending for access to the channel at the same time;
  • the second determining module is configured to determine, according to a code of a commercial protocol that each AP complies with, when the preset shared channel policy is a commercial protocol sharing policy, whether the other AP and the AP are allowed in the transmission opportunity window of each AP. Competing for access to the channel at the same time, including:
  • the second determining module is specifically configured to determine, according to the code of the commercial protocol that each AP complies with, that the same APs of the code of the compliant commercial protocol can simultaneously contend for access to the channel within the transmission opportunity window of each other.
  • the sending module is specifically configured to send a start time and an end time of a transmission opportunity window that allows other APs to simultaneously compete for access to the channel, and send the AP corresponding to the transmission opportunity window and allow simultaneous competing Other APs entering the channel;
  • the sending module is specifically configured to send a start time and a time length of a transmission opportunity window that allows other APs to simultaneously contend for access to the channel, and send the AP corresponding to the transmission opportunity window and allow simultaneous access to the channel. Other APs.
  • the sending module is further configured to send, to each AP, a start frame sending time and a length of time indicating that the STA in the BSS where each AP is contending to access the channel, so that the AP is in the start frame sending time. And sending, by the station STA in the BSS where the AP is located, a second start frame, and carrying, in the second start frame, a length of time indicating that the STA contends to access the channel, to indicate that the AP is located in the BSS Starting from the second start frame, the STA contends to access the channel within a length of time indicating that the STA contends to access the channel; wherein, the length of time indicating that the STA contends to access the channel is not The transmission opportunity window of the AP is exceeded.
  • the information reported by the AP includes: a priority of the BSS where the AP is located, and the AP complies with At least one of a code of a commercial agreement, a number of STAs associated with the AP, and a load of the AP.
  • the fifth possible implementation manner of the sixth aspect or the sixth possible implementation manner of the sixth aspect in a seventh possible implementation manner of the sixth aspect, Determining, according to the information received by the receiving module, a start time and an end time of each of the APs for contending for access to the transmission opportunity window used by the channel; or
  • the first determining module is specifically configured to determine, according to the information received by the receiving module, a start time and a length of time for each AP to contend for a transmission opportunity window used for accessing the channel.
  • the transmission opportunity window of each AP has the same length of time;
  • the transmission opportunity window of each AP has a different length of time.
  • the seventh aspect provides an access point AP, including:
  • a sending module configured to report information to the channel access control unit when the contention of the access channel is required, so that the channel access control unit determines all the contention access according to the information reported by the APs that contend for accessing the channel
  • Each of the APs of the channel is used to contend for access to the transmission opportunity window used by the channel;
  • a receiving module configured to receive indication information that is sent by the channel access control unit to indicate that the AP contends to access a transmission opportunity window that can be used by the channel;
  • a channel competition module configured to contend for accessing the channel in a transmission window indicated by the indication information received by the receiving module.
  • the receiving module is specifically configured to receive a start time and an end time of the transmission opportunity window sent by the channel access control unit;
  • the receiving module is specifically configured to receive a start time and a length of time of the transmission opportunity window sent by the channel access control unit.
  • the AP includes: a contention indication module, configured by the receiving module The station STA in the BSS where the AP is located indicates that the station STA in the BSS where the AP is located contends to access the channel.
  • the contention indication module is specifically configured to send a start frame time indicated by the channel access control unit And sending, to the STA in the BSS where the AP is located, a first start frame indicating that the STA starts to contend for accessing the channel, and sending an indication to the STA at an end frame sending time indicated by the channel access control unit.
  • the STA stops competing to access an end frame of the channel to indicate the
  • the STA contends to access the channel within a time defined by the first start frame and the end frame; wherein, the first start frame and the end frame are limited by a time that does not exceed the transmission opportunity window; or
  • the contention indication module is configured to send, to the STA in the BSS where the AP is located, a second, to indicate that the STA starts to contend for accessing the channel, at a start time of the start of the frame access control unit.
  • a start frame where the second start frame carries the indication indicated by the channel access control unit Determining, by the STA, the length of time for accessing the channel, to indicate that the STA starts to access the second start frame, and contends to access the channel within a time length indicated by the channel access control unit; The length of time indicated by the channel access control unit does not exceed the transmission opportunity window.
  • the receiving module is further configured to receive, by the channel access control unit, the start frame sending Time and the end frame transmission time; or
  • the receiving module is further configured to receive the start frame sending time sent by the channel access control unit and a length of time indicating that the STA contends to access the channel.
  • the eighth aspect provides a channel access apparatus, which is implemented in the first access point AP or implemented as the first AP, where the apparatus includes:
  • An acquiring module configured to acquire information about a second AP that is contending with the first AP to access the same channel, and determine, according to the information of the first AP and the information of the second AP, the first AP and the The length and sequence of the transmission opportunity window used by the second AP to access the channel respectively;
  • a first determining module configured to determine, according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP, a target shared channel policy used by the first AP and the second AP;
  • a second determining module configured to determine, according to the target shared channel policy determined by the first determining module, whether the channel can be concurrently accessed in a transmission opportunity window of the second AP;
  • the second determining module determines that the channel can be simultaneously contending for access in the transmission opportunity window of the second AP, according to the length of time of the transmission opportunity window of the first AP and the second AP And the sequence, contending for accessing the channel in a transmission opportunity window of the first AP and a transmission opportunity window of the second AP.
  • the channel contention module is further configured to: when the second determining module determines that the second AP does not compete in the transmission opportunity window of the second AP When accessing the channel, the channel is contending for access only within the transmission opportunity window of the first AP.
  • the device further includes: a receiving module, configured to determine, by the first determining module Before the target shared channel policy, the broadcast frame sent by the second AP is received, where the broadcast frame includes a shared channel policy supported by the second AP.
  • the target shared channel policy is Basic service set BSS priority sharing strategy;
  • the second determining module is specifically configured to determine, according to the priority of the BSS where the first AP is located, and the priority of the BSS where the second AP is located, whether the content may be simultaneously in the transmission opportunity window of the second AP. Access to the channel.
  • the second determining module is specifically configured to: the priority of the BSS where the second AP is located is lower than or When it is equal to the priority of the BSS where the first AP is located, it is determined that the channel can be simultaneously contending for access in the transmission opportunity window of the second AP.
  • the target shared channel policy is Business agreement sharing strategy
  • the second determining module is specifically configured to determine, according to the code of the commercial protocol that the first AP complies with, the code of the commercial protocol that the second AP complies with, whether it can compete in the transmission opportunity window of the second AP. Access to the channel.
  • the second determining module is specifically configured to be used in a code and a When the codes of the commercial protocols that the second AP complies with are the same, it is determined that the channels can be simultaneously contending for access within the transmission opportunity window of the second AP.
  • An indicating module configured to indicate the first in a transmission opportunity window of the first AP
  • the STAs in the BSS where the AP is located compete for access to the channel.
  • the first contention indication module is specifically configured to be respectively used in a transmission opportunity window of the first AP Sending, by the STA, a first start frame and an end frame, to indicate that the STA contends to access the channel within a time defined by the first start frame and the end frame; or
  • the first contention indication module is specifically configured to send a second start frame to the STA in a transmission opportunity window of the first AP, where the second start frame carries the first AP to indicate that the STA competes The length of time for accessing the channel, to indicate that the STA starts to access the second start frame, and contends to access the channel within a time length indicated by the first AP;
  • the length of time indicated by the AP does not exceed the transmission opportunity window of the first AP.
  • the device further includes: a first sending module, configured to send the target shared channel policy to an STA in a BSS where the first AP is located, so that Determining, by the STA, whether to contend for accessing the channel in a transmission opportunity window of the second AP according to the target shared channel policy; or, for sending a channel sharing message to the STA, where the channel sharing message includes An identifier of the second AP, to indicate that the STA may contend for accessing the channel within a transmission opportunity window of the second AP.
  • a first sending module configured to send the target shared channel policy to an STA in a BSS where the first AP is located, so that Determining, by the STA, whether to contend for accessing the channel in a transmission opportunity window of the second AP according to the target shared channel policy; or, for sending a channel sharing message to the STA, where the channel sharing message includes An identifier of the second AP, to indicate that the STA may contend for accessing the channel within a transmission opportunity window of the second AP.
  • the channel contention module is specifically configured to transmit according to the first AP and the second AP
  • the time length and the sequence of the opportunity window respectively determine a transmission opportunity window of the first AP and a transmission opportunity window of the second AP, and according to the transmission opportunity window of the first AP and the second AP And sequentially contending for accessing the channel in a transmission opportunity window of the first AP and the second AP; or
  • the channel contention module is configured to determine a transmission opportunity window of the first AP according to a time length and a sequence of a transmission opportunity window of the first AP and the second AP, and according to the second AP Determining a transmission opportunity window of the second AP according to a length of a transmission opportunity window and a start frame sent by the second AP to indicate a transmission opportunity window of the second AP, according to the first AP And the sequence of transmission opportunities of the second AP, in turn, in the first AP and the The transmission opportunity window of the second AP contends to access the channel.
  • the acquiring module is specifically configured to receive information about the second AP that is sent by STAs that are in the coverage of the first AP and the second AP.
  • the device further includes: a second contention indication module, configured to indicate, in a transmission opportunity window of the second AP, a BSS in which the first AP is located The STA contends to access the channel.
  • the ninth aspect provides a station STA, where the STA is associated with the first access point AP, and the STA includes: a receiving module, configured to receive a target shared channel policy sent by the first AP, where the target shared channel policy is that the first AP competes with the first AP according to a shared channel policy supported by the first AP Determined by a shared channel policy supported by the second AP of the same channel;
  • a determining module configured to determine, according to the target shared channel policy received by the receiving module, whether the channel can be contending for access in a transmission opportunity window of the second AP;
  • a channel contending module configured to send, according to the second AP, a transmission opportunity window of the second AP, when the determining module determines that the channel may be contending for access in the transmission opportunity window of the second AP
  • the indication information contends to access the channel in a transmission opportunity window of the second AP.
  • the channel contention module is further configured to: according to the indication information that is sent by the first AP in a transmission opportunity window of the first AP, The transmission opportunity window of the first AP competes for access to the channel.
  • the channel contention module is configured to use, according to the first AP, a transmission opportunity window of the first AP
  • the indication information sent in the competition for accessing the channel in the transmission opportunity window of the first AP includes:
  • the channel contention module is configured to receive, respectively, a first start frame and a first end frame that are sent by the first AP in a transmission opportunity window of the first AP, where the first start frame and the first frame are Competing for access to the channel within the time defined by the end frame; or
  • the channel contention module is specifically configured to receive a second start frame sent by the first AP in a transmission opportunity window of the first AP, starting from receiving the second start frame, at the first Competing for accessing the channel within the length of time indicated by the AP; wherein the second start frame includes a length of time for the first AP to contend for accessing the channel, and the length of time indicated by the first AP is not The transmission time window of the first AP is exceeded.
  • Competing for accessing the channel in the transmission opportunity window of the second AP according to the indication information that is sent by the second AP in the transmission opportunity window of the second AP including:
  • the channel contention module is specifically configured to receive, respectively, a third start frame and a third end frame that are sent by the second AP in a transmission opportunity window of the second AP, where the third start frame and the Competing for access to the channel within a time defined by the third end frame; or
  • the channel contention module is specifically configured to receive a fourth start frame sent by the second AP in a transmission opportunity window of the second AP, starting from receiving the fourth start frame, in the second Competing for accessing the channel within a length of time indicated by the AP; wherein the fourth starting frame includes a length of time for the second AP to contend for accessing the channel, and the length of time indicated by the second AP is not The transmission time window of the second AP is exceeded.
  • the tenth aspect provides a channel access device, which is implemented in the second access point AP or implemented as the second AP, where the device includes:
  • a sending module configured to send information about the second AP to a first AP that competes with the second AP to access the same channel, so that the first AP is configured according to the information of the first AP and the second
  • the information of the AP determines the length and sequence of the transmission opportunity window used by the first AP and the second AP to compete for access to the channel respectively;
  • a receiving module configured to receive a time length and a sequence of transmission opportunity windows of the first AP and the second AP that are sent by the first AP, and receive a target shared channel policy sent by the first AP;
  • the target shared channel policy is determined by the first AP according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP;
  • a determining module configured to determine, according to the target shared channel policy received by the receiving module, whether the channel can be concurrently accessed in a transmission opportunity window of the first AP;
  • a channel contention module configured to: according to the transmission opportunity window of the first AP and the second AP, when the determining module determines that the channel can be simultaneously contending for access in the transmission opportunity window of the first AP The length of time and the sequence of contending for access to the channel within the transmission opportunity window of the first AP and the transmission opportunity window of the second AP.
  • the channel contention module is further configured to: at the determining module, determine that the access may not be simultaneously contending in the transmission opportunity window of the first AP In the case of the channel, the channel is contending for access only in the transmission opportunity window of the second AP.
  • the sending module is further configured to receive the target shared channel policy in the receiving module Previously, a broadcast frame is sent to the first AP, where the broadcast frame includes a shared channel policy supported by the second AP.
  • a third possible implementation manner of the tenth aspect And configured to send, by the station STA that is in the coverage of the first AP and the second AP, the information of the second AP to the first AP.
  • the eleventh aspect provides a channel access control unit, including:
  • a receiver configured to receive information reported by each access point AP that contends to access the same channel
  • a processor configured to determine, according to the information received by the receiver, each AP to contend for accessing the channel a transmission opportunity window, and determining, according to a preset shared channel policy, whether other APs are allowed to compete with the AP for accessing the channel at the same time in the transmission opportunity window of each AP;
  • a transmitter configured to: when the determining result of the processor is allowed, send indication information that allows other APs to simultaneously contend for a transmission opportunity window of the channel to be sent to the AP corresponding to the transmission opportunity window, and allow simultaneous competing Entering other APs of the channel, such that the equipment in the basic service set BSS where the AP corresponding to the transmission opportunity window is located and the equipment in the BSS where other APs that are allowed to simultaneously access the channel are located in the transmission opportunity window At the same time, the channel is accessed by competition.
  • a twelfth aspect provides an access point AP, including:
  • a transmitter configured to report information to the channel access control unit when the contending access channel is required, so that the channel access control unit determines all competing access according to information reported by all APs contending for access to the channel
  • Each of the APs of the channel is used to contend for access to the transmission opportunity window used by the channel;
  • a receiver configured to receive, by the channel access control unit, indication information used to indicate that the AP competes to access a transmission opportunity window that can be used by the channel;
  • a processor configured to compete for accessing the channel in a transmission opportunity window indicated by the indication information received by the receiver.
  • the thirteenth aspect provides a channel access device, which is implemented in the first access point AP or implemented as the first AP, and the device includes:
  • a processor configured to perform processing of the program, for:
  • the first AP competes with the second AP that is in the same channel, and determines that the first AP and the second AP compete for the information according to the information of the first AP and the information of the second AP. And determining, according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP, the first AP and the a target shared channel policy commonly used by the second AP, and determined according to the first determining module.
  • the target shared channel policy determining whether the channel can be simultaneously contending for access in the transmission opportunity window of the second AP, and determining that the access device can be simultaneously contiguous within the transmission opportunity window of the second AP
  • competing in the transmission opportunity window of the first AP and the transmission opportunity window of the second AP according to the time length and the sequence of the transmission opportunity window of the first AP and the second AP Access to the channel.
  • the fourteenth aspect provides a site STA, where the STA is associated with the first access point AP, and the STA includes:
  • a receiver configured to receive a target shared channel policy sent by the first AP, where the target shared channel policy is that the first AP competes with the first AP according to a shared channel policy supported by the first AP Determined by a shared channel policy supported by the second AP of the same channel;
  • a processor configured to determine, according to the target shared channel policy received by the receiver, whether the channel can be contending for access in a transmission opportunity window of the second AP, and determining that the second AP is available Competing for access to the channel in the transmission opportunity window, competing for access in the transmission opportunity window of the second AP according to the indication information sent by the second AP in the transmission opportunity window of the second AP Said channel.
  • the fifteenth aspect provides a channel access apparatus, which is implemented in the second access point AP or implemented as the second AP, where the apparatus includes:
  • a transmitter configured to send information about the second AP to a first AP that competes with the second AP for accessing the same channel, so that the first AP is configured according to the information of the first AP and the second
  • the information of the AP determines the length and sequence of the transmission opportunity window used by the first AP and the second AP to compete for access to the channel respectively;
  • a receiver configured to receive a time length and a sequence of transmission opportunity windows of the first AP and the second AP that are sent by the first AP, and receive a target shared channel policy sent by the first AP;
  • the target shared channel policy is determined by the first AP according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP;
  • a processor configured to determine, according to the target shared channel policy received by the receiver, whether the channel can be simultaneously contending for access in a transmission opportunity window of the first AP, and in determining that the first channel is available
  • the access opportunity window of the AP is contending for the access to the channel, according to the time length and sequence of the transmission opportunity window of the first AP and the second AP, the transmission opportunity window of the first AP and The transmission opportunity window of the second AP competes for access to the channel.
  • a channel access method and device are provided by the embodiment of the present invention.
  • the channel access control unit determines, according to the information of each AP that contends to access the same channel, the transmission opportunity window used by each AP to compete for the access channel, and then determines according to the shared channel policy.
  • the indication information of the transmission opportunity window that allows other APs to simultaneously contend for the access channel is sent to the AP of the transmission opportunity window and Other APs that are allowed to contend for the access channel at the same time, so that devices in the BSS where the APs are located can simultaneously contend for access to the channel within the transmission opportunity window, and different BSSs can be allowed to share the channel on the basis of the principle of ensuring fairness.
  • the first AP determines, according to the information of itself and the information of the second AP that is contending for the same channel, the transmission opportunity window used by the first AP and the second AP to compete for the access channel.
  • FIG. 1 is a flowchart of a channel access method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another channel access method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of still another channel access method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of still another channel access method according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another channel access method according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a channel access control unit according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of another channel access control unit according to an embodiment of the present invention
  • a schematic diagram of the structure of an AP
  • FIG. 9 is a schematic structural diagram of another AP according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a channel access apparatus according to an embodiment of the present disclosure
  • FIG. 11 is another channel access device according to an embodiment of the present invention.
  • FIG. 12 is still another channel access device according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a STA according to an embodiment of the present invention.
  • FIG. 14 is a block diagram of another STA according to an embodiment of the present invention.
  • FIG. 15 is still another channel access device according to an embodiment of the present invention.
  • FIG. 16 is still another channel access device according to an embodiment of the present invention.
  • the concept of BSS priority division in the wireless local area network and the identification and setting method of the BSS priority level are first proposed.
  • a higher priority for BSS means that devices belonging to the BSS will have priority over other BSS devices or occupy certain spectrum resources.
  • the embodiment of the present invention also proposes a channel access method. The following is a description of the BSS priority related information.
  • the BSS priority is set for each BSS. Different BSS priorities are high or low. The priority of the same BSS will also vary depending on the strategy that the BSS performs. For example: When considering access control, the priority of a BSS may be the highest, that is, the various devices in the BSS may use the channel preferentially; but when considering channel switching, the BSS priority may be The lowest, that is to say, the BSS may be required to switch channels by the higher priority BSS. This allows for more flexible prioritization based on the policies that the BSS will perform.
  • the priority of a BSS can be identified by one or a set of data.
  • the priority of the BSS is identified by considering the number of associated users in one BSS, the number of active users in the BSS, or the specified data related to channel selection, and the like.
  • the number of associated users in a BSS and the number of active users in the BSS can be simultaneously used to determine the priority of the BSS. For example, the higher the number of active users, the higher the BSS priority. When the number of active users is the same, the more the number of associated users, the higher the BSS priority.
  • the priority of the BSS may also be the number of associated users in the BSS, the BSS The number of active users in the middle and the specified data related to channel selection are simultaneously identified.
  • other data can also be used to identify the BSS priority.
  • the priority of the BSS is carried by the AP and the station (Station, referred to as STA) in the BSS. That is, the APs and STAs in the high-priority BSS have higher priority than the APs and STAs in the low-priority BSS.
  • the BSS priority is the attribute of the BSS and is carried by various devices in the BSS. When a device leaves the current BSS, the corresponding priority is lost.
  • the embodiment of the present invention provides a cell priority setting method, including:
  • the AC obtains the parameters of each BSS required to set the priority or the policy required to set the priority; the AC sets the priority for each BSS according to the obtained parameters of each BSS or the policy.
  • the method of setting the cell priority belongs to the central control mode. Specifically, the AC sets a priority for each BSS based on a preset parameter, or the AC sets a priority for each BSS based on a preset policy.
  • the parameters required for setting the priority may be different according to the application scenario, for example, the number of associated STAs, the length of the cache queue corresponding to the downlink service of the BSS, the number of active STAs, and the like.
  • the policy required to set the priority may be set according to the payment information of the STA in each BSS or the information of the operator to which each BSS belongs.
  • the AC can send the priority of each BSS to the APs in each BSS, so that each AP knows the priority of the BSS, and then performs corresponding operations based on the BSS priority.
  • the embodiment of the present invention further provides a cell priority setting method, including:
  • the AP obtains the value of the priority of the neighboring BSS and the parameter used by the neighboring BSS to set the priority. Then, the AP sets the priority parameter according to the value of the local parameter, the priority of the neighbor BSS, and the neighbor BSS. The value of the BSS determines the priority of the BSS.
  • the method of setting the cell priority belongs to a distributed mode.
  • the AP in the BSS to be set priorities sets the priority of the BSS in which the BSS is located by referring to the priority of the neighboring BSS, and the value of the related parameter used by the neighboring BSS setting priority and the value of the local same parameter.
  • the AP may send a priority acquisition request to the AP in the AC or the neighbor BSS to request the priority of the neighbor BSS and the value of the parameter used by the neighbor BSS to set the priority.
  • the reply information returned by the AP in the AC or the neighbor BSS is received, and the priority of the neighbor BSS and the value of the parameter used for setting the priority are obtained.
  • the STAs in the BSS can learn the priority of the BSS in the following manner.
  • the STA sends a priority request message to the AP.
  • the priority request message can be a new command or a new field contained in a control frame, management frame or data frame.
  • the priority request message can be enqueued in an association request or a probe request.
  • the priority request message contains information such as the BSS ID and other related parameters.
  • the AP broadcasts the priority information of the current BSS in a beacon frame, management frame, control frame, or data frame.
  • the STA receives the beacon frame, the management frame, the control frame, or the data frame broadcast by the AP, and obtains the priority information of the current BSS from the STA.
  • the embodiment of the present invention further provides a channel access method, as shown in the figure.
  • the method includes:
  • the channel access control unit receives information reported by each AP that contends to access the same channel, and determines, according to the information, a transmission opportunity window used by each AP to contend for access to the channel.
  • the channel access control unit determines, according to the preset shared channel policy, whether other APs and the AP are allowed to simultaneously access the channel in the transmission opportunity window of each AP.
  • the channel access control unit sends indication information that allows other APs to simultaneously contend for the transmission opportunity window of the channel to be sent to the AP corresponding to the transmission opportunity window and allows simultaneous competition for access to the The other APs of the channel, such that the devices in the BSS where the AP corresponding to the transmission opportunity window and the devices in the BSS where other APs that are allowed to simultaneously access the channel are located are simultaneously contending for access in the transmission opportunity window. channel.
  • the channel access control unit when the AP needs to contend for the access channel, the channel access control unit reports the respective information, so that the channel access control unit determines, for each AP, the contention for the access channel according to the information of each AP.
  • the transmission opportunity window used to ensure the fairness of each AP competing for access channels.
  • the channel access control unit may be an AC, or may be implemented in an AC, or may be an AC independent control unit or the like.
  • the information reported by the AP may include at least one of a priority of the BSS where the AP is located, a code of the commercial protocol that the AP complies with, a number of STAs associated with the AP, and a load of the AP, but is not limited thereto.
  • the channel access control unit determines, according to the information reported by each AP, a transmission opportunity window used by each AP to compete for the access channel, which is mainly determined by: according to the information reported by each AP, The length and sequence of the transmission opportunity window of the AP. Specifically, the channel access control unit may determine, according to the information reported by the AP, a start time and an end time of the transmission opportunity window used by each AP to compete for the access channel; or, the channel access control unit may report the report according to the AP. Information, determining the start time and length of time for each AP to use for the transmission opportunity window used by the access channel.
  • the channel access control unit may determine the sequence of the transmission opportunity window of each AP according to the priority order of the BSSs of the APs. For example, the higher the priority of the BSS where the AP is located, the more the transmission opportunity window of the AP is. In the front, it means that the start time and end time of the transmission opportunity window are higher.
  • the channel access control unit may determine a sequence of transmission opportunity windows of each AP according to a commercial protocol code that each AP complies with. For example, the channel access control unit may arrange a transmission opportunity window of an AP that complies with the same commercial protocol code. In adjacent locations, and so on.
  • Each AP contends for an access channel in its respective transmission opportunity window.
  • the transmission opportunity window of each AP indicates to a certain extent the priority of each AP to access the channel.
  • the fairness between APs is realized by the length of the transmission opportunity window of each AP and the sequence of transmission opportunities between APs.
  • the length of the transmission opportunity window of each AP may be the same or different.
  • the higher the priority of the BSS of the AP the greater the length of the transmission opportunity window of the AP, or the greater the number of STAs associated with the AP, the greater the length of the transmission opportunity window of the AP.
  • the channel access control unit After the channel access control unit determines the transmission opportunity window of each AP that is contending for the same channel, it can determine whether other APs are allowed to compete with the AP in the transmission opportunity window of each AP according to the preset shared channel policy. Into the channel.
  • the shared channel policy refers to a policy for determining whether other APs are allowed to simultaneously contend for an access channel in a transmission opportunity window of an AP, and may include, for example, a BSS priority sharing policy and a commercial protocol sharing policy.
  • the BSS priority sharing policy is based on the priority of the BSS where each AP is located, and determines whether the APs in the transmission opportunity window allow other APs to simultaneously contend for the access channel.
  • the commercial protocol sharing policy refers to a policy of determining whether other APs simultaneously compete for access channels in an AP's transmission opportunity window according to the commercial protocol that each AP complies with.
  • the shared channel policy used is set in advance.
  • the shared channel policy allows root Adaptability is set according to the actual application scenario, and modification is allowed.
  • the channel access control unit determines, according to the preset shared channel policy, whether the process of allowing the other AP to compete with the AP for the access channel in the transmission opportunity window of each AP may include:
  • the channel access control unit determines, according to the priority of the BSS of each AP, whether other APs are allowed to be simultaneously with the AP in the transmission opportunity window of each AP. Competing access to the channel;
  • the channel access control unit determines, according to the code of the commercial protocol that each AP complies with, whether other APs are allowed to compete with the AP in the transmission opportunity window of each AP. Enter the channel.
  • the channel access control unit determines, according to the priority of the BSS of each AP, whether the APs are allowed to compete with the AP for the access channel at the same time in the transmission opportunity window of each AP.
  • the channel access control unit determines, according to the priority of the BSS where each AP is located, that the priority of the BSS allowed in the transmission opportunity window of each AP is higher than the priority of the AP or the BSS of the BSS where the AP is located.
  • the APs of the same priority as the BSS where the AP is located compete for access to the channel at the same time.
  • the implementation means that the channel access control unit determines that the AP with the highest priority of the BSS can compete in the transmission time window of any other AP. Incoming access channel, and the AP with the lowest priority of the BSS in the BSS can only contend for the access channel within the transmission opportunity window of the AP with the same BSS priority and the transmission opportunity window of the AP with the lower BSS priority. .
  • the channel access control unit determines, according to the priority of the BSS of each AP, whether the manner in which the other APs are allowed to compete with the AP for the access channel in the transmission opportunity window of each AP is not limited to the foregoing. It can also be other ways.
  • the channel access control unit may determine in advance whether the other APs are allowed to compete with the AP for the access channel at the same time according to the priority of the BSS of each AP.
  • the priority of the BSS where each AP is located For example, in a scenario where the channel access control unit is configured as the AC to set the priority of each BSS in each AP, the channel access control unit knows in advance the priority of the BSS where each AP is located. For example, when the information reported by each AP includes the priority of the BSS where each AP is located, the channel access control unit also knows in advance the priority of the BSS where each AP is located.
  • the channel access control unit may be in accordance with the priority of the BSS where each AP is located.
  • the size of the BSS of each AP is not known before the other AP's transmission opportunity window is allowed to allow other APs to compete with the AP for the access channel.
  • the channel access control unit may not know the priority of the BSS where each AP is located. Based on this, the channel access control unit may determine, before determining, according to the priority of the BSS of each AP, whether the other APs are allowed to compete with the AP for the access channel at the same time. The priority of the BSS where the AP is located.
  • the channel access control unit may send a priority acquisition request to the AP to request the priority of the BSS where the AP is located, and then receive the priority of the BSS where the AP is returned by the AP for the priority acquisition request.
  • the channel access control unit may receive a beacon frame periodically sent by the AP, obtain a priority of the BSS where the AP is located from the received beacon frame, and the like.
  • the channel access control unit determines, according to the code of the commercial protocol that each AP complies with, whether the manner in which the other APs are allowed to compete with the AP at the same time in the transmission opportunity window of each AP may be Includes:
  • the channel access control unit determines that the same code of the compliant commercial protocol can simultaneously contend for access to the channel within the transmission opportunity window of each other according to the code of the commercial protocol that each AP complies with.
  • the channel access control unit determines, according to the code of the commercial protocol that each AP complies with, whether the manner in which the other APs are allowed to simultaneously compete with the AP for accessing the channel in the transmission opportunity window of each AP is not limited to the above. It can be other ways.
  • the channel access control unit may determine in advance whether each other AP is allowed to compete with the AP for accessing the access channel before the AP's transmission opportunity window according to the code of the commercial protocol that each AP complies with.
  • the code of the commercial agreement that the AP complies with For example, in the case where the information reported by each AP includes the code of the commercial protocol to which each AP complies, the channel access control unit knows in advance the code of the commercial protocol to which each AP complies.
  • the channel access control unit may not know each time before the other APs are allowed to compete with the AP for the access channel in the transmission opportunity window of each AP according to the code of the commercial protocol that each AP complies with.
  • the code of the commercial agreement that the AP complies with For example, in a case where the information reported by each AP does not include the code of the commercial protocol that each AP complies with, the channel access control unit determines the transmission opportunity window of each AP according to the code of the commercial protocol that each AP complies with. Before allowing other APs to compete with the AP for the access channel at the same time, it is necessary to obtain the code of the commercial protocol that each AP complies with.
  • the channel access control unit may send a commercial protocol code acquisition request to the AP, The code of the commercial agreement that the AP complies with is requested, and then receives the code of the commercial protocol that the AP returns for the commercial protocol code acquisition request.
  • the channel access control unit may receive a beacon frame periodically transmitted by the AP, acquire a code of a commercial protocol that the AP complies with from the received beacon frame, and the like.
  • the indication information of the transmission opportunity window may be sent to the AP corresponding to the transmission opportunity window and other APs that are allowed to simultaneously contend for the access channel.
  • the devices in the BSS where the AP corresponding to the AP corresponding to the transmission opportunity window and the devices in the BSS where other APs that are allowed to simultaneously contend for the access channel are simultaneously contending for the access channel in the transmission opportunity window.
  • the device in the BSS where the AP is located here includes the AP and STA in the BSS.
  • the channel access control unit sends indication information that allows other APs to simultaneously contend for the transmission opportunity window of the channel, and sends the indication information to the AP corresponding to the transmission opportunity window and allows simultaneous competition for access.
  • Other APs of the channel including:
  • the channel access control unit will allow other APs to simultaneously contend for the start time and end time of the transmission opportunity window of the access channel, and send the AP corresponding to the transmission opportunity window and other APs that are allowed to simultaneously contend for the channel. ; or
  • the channel access control unit will allow other APs to simultaneously contend for the start time and length of the transmission opportunity window of the channel, and send the AP corresponding to the transmission opportunity window and allow simultaneous access to the channel. Other APs.
  • the AP For the AP, it receives the indication information sent by the channel access control unit indicating that the AP contends for the transmission opportunity window used by the access channel, and then contends for the access channel within the transmission opportunity window indicated by the indication information.
  • the channel access control unit sends, to the AP corresponding to the transmission opportunity window of the transmission opportunity window, the indication information that allows other APs to simultaneously contend for the transmission opportunity window of the channel, and allows simultaneous access to the channel.
  • the start frame transmission time and the end frame transmission time are also sent to each AP, so that the AP sends the first start frame to the STAs in the BSS where the AP is located, and the AP sends the first start frame to the STA in the BSS where the AP is located.
  • the STA sends a first start frame, and sends an end frame to the STAs in the BSS where the AP is located at the end frame transmission time, to instruct the STA to contend for the access channel within the time defined by the first start frame and the end frame.
  • the access channel is contending, and when the end frame sent by the associated AP is received, the contention channel is stopped.
  • the first start frame and the end frame may be newly defined management frames, or may be beacon frames.
  • a certain time does not exceed a certain transmission opportunity window means that the certain time is located in a transmission opportunity window or at a certain time is exactly the certain transmission opportunity window.
  • the channel access control unit may send the indication information of the transmission opportunity window, the sending start frame sending time, and the ending frame sending time of the other APs simultaneously competing for the access channel to the AP in the same process.
  • the channel access control unit sends the indication information of the transmission opportunity window that allows other APs to simultaneously contend for access to the channel, and sends the information to the AP corresponding to the transmission opportunity window and other APs that are allowed to simultaneously access the channel. And sending, to each AP, a start time of the start of the frame and a length of time for the STA in the BSS where the AP is located to contend for accessing the channel, so that the AP is located at the time of sending the start frame to the AP.
  • the STA in the BSS sends a second start frame, and carries a length of time in the second start frame indicating that the STA contends to access the channel, to indicate that the STA in the BSS where the AP is located is from the STA.
  • a second start frame Starting from a second start frame, contending for accessing the channel during a period of time indicating that the STA contends to access the channel; wherein, indicating that the STA contends to access the channel does not exceed the AP Transmission opportunity window.
  • the AP For the AP, it will receive the start time of the start of the frame sent by the channel access control unit and the length of time that the indicated STA contends for channel access, and will send the second time to the STA in the BSS where the AP is located at the start time of the start of the frame. And starting, in the second start frame, carrying a length of time indicated by the channel access control unit, to indicate that the STA starts competing for the access channel within a time length indicated by the channel access control unit, starting from receiving the second start frame .
  • the access channel is contending, and the time length indicated by the channel access control unit ends, and the contention access channel is stopped.
  • the second start frame may be a newly defined management frame or a beacon frame.
  • the channel access control unit may, in the same process, indicate that the other APs are simultaneously competing for the transmission opportunity window of the access channel, the sending start frame sending time, and the STA in the BSS where the AP is located. The length of time of the channel is simultaneously sent to the AP. Further optionally, the channel access control unit determines each according to a preset shared channel policy.
  • the other APs and the APs are allowed to simultaneously access the channel in the transmission opportunity window of the AP, and some APs may determine that their transmission opportunity window allows other APs to simultaneously contend for the access channel, and may determine other APs.
  • the transmission opportunity window does not allow other APs to simultaneously contend for the access channel.
  • the channel access control unit determines the indication information of the transmission opportunity window that does not allow other APs to simultaneously contend for the access channel. And sending, to the AP corresponding to the transmission opportunity window, the device in the BSS where the AP corresponding to the transmission opportunity window competes for the access channel in the transmission opportunity window.
  • the channel access control unit sends the indication information of the transmission opportunity window that does not allow the other APs to simultaneously contend for the access channel to the AP corresponding to the transmission opportunity window, including:
  • the channel access control unit sends the determined start time and end time of the transmission opportunity window that does not allow other APs to simultaneously contend for the access channel, to the AP corresponding to the transmission opportunity window; or
  • the channel access control unit sends the determined start time and length of time of the transmission opportunity window that does not allow other APs to simultaneously contend for the access channel, and sends the same to the AP corresponding to the transmission opportunity window.
  • the channel access control unit determines, according to the information of each AP that contends to access the same channel, the transmission opportunity window used by each AP to compete for the access channel, and then according to the shared channel policy. Determining whether the other APs are allowed to simultaneously contend for the access channel in the transmission opportunity window of each AP. When the determination result is allowed, the indication information of the transmission opportunity window that allows other APs to simultaneously contend for the access channel is sent to the AP of the transmission opportunity window.
  • FIG. 2 is a flowchart of another channel access method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • the AP When the AP needs to contend for the access channel, the AP reports the information to the channel access control unit, so that the channel access control unit determines all the contention accesses according to the information reported by the APs that contend for accessing the channel. Each AP in the AP of the channel is used to contend for the transmission opportunity window used by the channel.
  • the AP receives, by the channel access control unit, indication information used to indicate that the AP contends to access a transmission opportunity window that can be used by the channel.
  • the AP contends to access the channel in a transmission opportunity window indicated by the indication information.
  • This embodiment corresponds to the embodiment shown in FIG. 1, and is a description from the perspective of the AP.
  • the AP when the contending access channel is required, the AP reports the information to the channel access control unit, so that the channel access control unit determines all the competing accesses according to the information reported by the APs that contend for accessing the channel.
  • Each of the APs of the channel is used to contend for access to the transmission opportunity window used by the channel.
  • the information reported by the AP may include at least one of a priority of the BSS where the AP is located, a code of the commercial protocol that the AP complies with, a number of STAs associated with the AP, and a load of the AP, but is not limited thereto.
  • the channel access control unit determines, according to information reported by the APs that contend for access to the channel, a transmission opportunity window for each AP that contends for accessing the channel to contend for access to the channel, and For a description of how to allow other APs to simultaneously contend for the access channel in the transmission opportunity window of each AP, refer to the embodiment shown in FIG. 1 , and details are not described herein again.
  • the indication information of the transmission opportunity window is sent to the AP to indicate the transmission opportunity window.
  • the transmission opportunity window that the AP contention channel can use includes the AP's own transmission opportunity window, and may also include a transmission opportunity window of other APs that allow the AP to simultaneously contend for the access channel.
  • the manner in which the AP receives the indication information that is sent by the channel access control unit to indicate that the AP contends for the transmission opportunity window that the access channel can use includes:
  • the AP receives the start time and the end time of the transmission opportunity window sent by the channel access control unit;
  • the AP receives the start time and time length of the transmission opportunity window sent by the channel access control unit.
  • the AP may contend for the access channel in the transmission opportunity window indicated by the indication information.
  • the AP is contending for the access channel to communicate with the STAs in the BSS where the AP is located. Therefore, after the AP contends to access the channel in the transmission opportunity window indicated by the indication information, The transmission opportunity window indicated by the indication information indicates that the STAs in the BSS where the AP is located contend for the access channel.
  • the process that the AP in the transmission opportunity window indicated by the indication information indicates that the STA in the BSS where the AP is located is contending for accessing the channel may include:
  • the AP At the time of sending the start frame indicated by the channel access control unit, the AP is in the BSS where the AP is located. Sending, by the STA, a first start frame indicating that the STA starts to contend for accessing the channel, and sending, to the STA, the STA to stop competing for accessing the channel, at a time of ending frame transmission indicated by the channel access control unit. Ending a frame to instruct the STA to contend for access to the channel within a time defined by the first start frame and the end frame. The time defined by the first start frame and the end frame does not exceed a transmission opportunity window indicated by the indication information.
  • the access channel is contending, and when the end frame sent by the associated AP is received, the contention channel is stopped.
  • the first start frame and the end frame may be newly defined management frames, or may be beacon frames.
  • the AP receives the start frame transmission time and the end frame transmission time sent by the channel access control unit before sending the first start frame to the STA in the BSS where the AP is located.
  • the process that the AP in the transmission opportunity window indicated by the indication information indicates that the STA in the BSS where the AP is located is contending for accessing the channel may include:
  • the second start frame for instructing the STA to start competing to access the channel
  • the second start frame carries a length of time that the STA indicated by the channel access control unit contends to access the channel, to indicate that the STA starts from receiving the second start frame, in the channel access control
  • the channel is contending for access to the channel within the length of time indicated by the unit.
  • the time length indicated by the channel access control unit does not exceed the transmission opportunity window indicated by the indication information.
  • the second start frame may be a newly defined management frame, or may be a beacon frame.
  • the method further includes: receiving, by the receiving channel access control unit, the start frame sending time and indicating that the STA contends to access the channel Length of time.
  • the AP cooperates with the channel access control unit to compete for access to the channel in a transmission opportunity window indicated by the indication information sent by the channel access control unit.
  • Different BSSs can be allowed to share channels on the basis of the principle of ensuring fairness.
  • FIG. 3 is a flowchart of still another channel access method according to an embodiment of the present invention. As shown in FIG. 3, the method includes:
  • the first AP acquires information about a second AP that is contending with the first AP to access the same channel, and determines the first AP and the information according to the information of the first AP and the information of the second AP.
  • the second AP competes for the length of time and sequence of transmission opportunity windows respectively used to access the channels.
  • the first AP determines, according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP, a target shared channel policy used by the first AP and the second AP.
  • the first AP determines, according to the target shared channel policy, whether the channel can be concurrently accessed in the transmission opportunity window of the second AP.
  • the second AP involved in this embodiment may be any AP that competes with the first AP for accessing the same channel. That is to say, the method provided in this embodiment can be used to contend for accessing the channel between the two APs that are contending for the same channel.
  • the first AP acquires information of the second AP.
  • the first AP may receive the beacon frame sent by the second AP or the broadcast frame carrying the related information broadcast by the second AP, and obtain the information of the second AP from the beacon frame or the broadcast frame.
  • the information of the second AP may include: a priority of a BSS where the second AP is located, a code of a commercial protocol that the second AP complies with, a number of STAs associated with the second AP, and a load of the second AP, but it is not limited to this.
  • the information of the first AP may include: a priority of a BSS where the first AP is located, a code of a commercial protocol that the first AP complies with, a number of STAs associated with the first AP, and a load of the first AP, but Not limited to this.
  • the first AP may directly receive information of the second AP sent by the second AP. If the first AP and the second AP are not within communication range of each other, the first AP may receive information of the second AP sent by the STA that is within the coverage of the first AP and the second AP at the same time. Specifically, the information of the second AP first arrives at the STA, and then the STA forwards the information to the first AP.
  • the first AP may determine, according to the information of the first AP and the information of the second AP, the length of time that the first AP and the second AP compete for access to the transmission opportunity window respectively used by the channel. In order. The first AP and the second AP may contend for the access channel in the respective transmission opportunity window, and the transmission opportunity window of the first AP and the second AP to some extent characterizes the priority of the two users competing to access the channel. level. In this embodiment, the fairness between the APs is reflected by the length of the transmission opportunity window of each AP and the sequence between the transmission opportunity windows of the APs.
  • the first AP may determine the sequence of the transmission opportunity window of each AP according to the priority order of the priority of the BSS where the first AP and the second AP are located. For example, the higher the priority of the BSS where the AP is located, the higher the priority of the AP.
  • the transmission opportunity window is higher.
  • the first AP may determine a sequence of transmission opportunity windows of the two APs according to a commercial protocol code followed by the first AP and the second AP, and the like.
  • the time lengths of the transmission opportunity windows of the first AP and the second AP may be the same or different.
  • the higher the priority of the BSS in which the AP is located the larger the length of the transmission opportunity window of the AP, or the greater the number of STAs associated with the AP, the greater the length of the transmission opportunity window of the AP.
  • the first AP may be configured according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP. Determine the target shared channel policy.
  • the target shared channel policy is a shared channel policy supported by the first AP and the second AP, and the purpose is for the first AP and the second AP to determine whether to allow each other to compete in the respective transmission opportunity window. Into the channel.
  • the shared channel policy refers to a policy for determining whether other APs are allowed to simultaneously contend for an access channel in a transmission opportunity window of an AP, and may include, for example, a BSS priority sharing policy and a commercial protocol sharing policy.
  • the BSS priority sharing policy is based on the priority of the BSS where each AP is located, and determines whether the APs in the transmission opportunity window allow other APs to simultaneously contend for the access channel.
  • the commercial protocol sharing policy refers to a policy of determining whether other APs simultaneously compete for access channels in an AP's transmission opportunity window according to the commercial protocol that each AP complies with.
  • the first AP may support at least one of a BSS priority sharing policy and a commercial protocol sharing policy
  • the second AP may also support at least one of a BSS priority sharing policy and a commercial protocol sharing policy.
  • the first AP may determine one of the shared channel policies supported by the first AP and the second AP as the target shared channel policy.
  • the target shared channel policy may be a BSS priority sharing policy or may be a commercial protocol sharing policy.
  • different target shared channel policies can be adopted between different APs.
  • the first AP has previously known the shared channel policy supported by the second AP before determining the target shared channel policy according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP. For example, in the case where the information of the second AP includes the shared channel policy information supported by the second AP.
  • the first AP may not know the shared channel policy supported by the second AP before determining the target shared channel policy according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP. For example, if the information of the second AP does not include the shared channel policy information supported by the second AP, the first AP determines the target sharing according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP. Before the channel policy, the shared channel policy supported by the second AP needs to be obtained first.
  • the first AP may receive a broadcast frame sent by the second AP, where the broadcast frame includes the second AP, before determining the target shared channel policy according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP.
  • Supported shared channel policies are not limited to this.
  • the first AP After the first AP determines the target shared channel policy, it may determine whether the access channel can be simultaneously contending in the transmission opportunity window of the second AP according to the target shared channel policy.
  • the process of determining, by the first AP, whether the access channel can be simultaneously contending in the transmission opportunity window of the second AP according to the target shared channel policy may include: if the target shared channel policy is BSS priority sharing The policy, the first AP may determine, according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located, whether the access channel can be simultaneously contending in the transmission opportunity window of the second AP;
  • the first AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether it can compete simultaneously in the transmission opportunity window of the second AP. Access channel.
  • the first AP determines, according to the priority of the BSS where the first AP is located, and the priority of the BSS where the second AP is located, whether the access channel can be simultaneously contending in the transmission opportunity window of the second AP.
  • the method may include: if the priority of the BSS where the second AP is located is lower than or equal to the priority of the BSS where the first AP is located, the first AP determines that the access channel may be simultaneously contending in the transmission opportunity window of the second AP.
  • the first AP determines whether the access channel can be simultaneously contending in the transmission opportunity window of the second AP.
  • the method is not limited to the above, and may be other methods.
  • the first AP may determine whether it is possible to compete for the access channel in the transmission opportunity window of the second AP according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located.
  • the priority of the BSS where the second AP is located is known in advance. For example, in a case where the information of the second AP includes the priority of the BSS where the second AP is located, the first AP knows in advance the priority of the BSS of the second AP. For example, in a scenario in which each AP determines the priority of the BSS in a distributed manner, the first AP also knows the priority of the second AP in advance.
  • the first AP may determine, according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located, whether the channel may be simultaneously contending for the access channel in the transmission opportunity window of the second AP.
  • the priority of the BSS where the second AP is located is not known. For example, if the information of the second AP does not include the priority of the BSS where the second AP is located, the first AP knows in advance the priority of the BSS of the second AP. Based on this, the first AP may determine whether it is possible to compete for the access channel in the transmission opportunity window of the second AP according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located.
  • the first AP may send a priority acquisition request to the second AP to request the priority of the BSS where the second AP is located, and then receive the priority of the BSS of the second AP returned by the second AP for the priority acquisition request.
  • the first AP may receive a beacon frame periodically sent by the second AP, obtain a priority of the BSS where the second AP is located from the received beacon frame, and the like.
  • the first AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether the access channel can be simultaneously contending in the transmission opportunity window of the second AP.
  • Ways can include:
  • the first AP determines that the access channel can be simultaneously contiguous within the transmission opportunity window of the second AP.
  • the manner in which the first AP determines whether the access channel can be simultaneously contending in the transmission opportunity window of the second AP according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with is not limited to The above may also be other ways.
  • the first AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether it can compete for the access channel in the transmission opportunity window of the second AP, possibly
  • the code of the commercial agreement that the second AP complies with is known in advance. For example, in the case where the information of the second AP includes the code of the commercial protocol that the second AP complies with, the first AP will know in advance The code of the commercial agreement that the second AP complies with.
  • the first AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether it can compete for the access channel in the transmission opportunity window of the second AP, possibly
  • the code of the commercial agreement that the second AP complies with is not known.
  • the first AP determines the code of the commercial protocol according to the first AP and the code of the commercial protocol that the second AP complies with.
  • the first AP may send a commercial protocol code acquisition request to the second AP to request the code of the commercial protocol that the second AP complies with, and then receive the second AP-compliant business returned by the second AP for the commercial protocol code acquisition request.
  • the code of the agreement may be another example, the first AP may receive a beacon frame periodically transmitted by the second AP, acquire a code of a commercial protocol that the second AP complies with from the received beacon frame, and the like.
  • the first AP may transmit according to the time length and the sequence of the transmission opportunity window of the first AP and the second AP.
  • the opportunity window and the transmission opportunity window of the second AP compete for access to the channel.
  • the first AP determines a time length and a sequence of the transmission opportunity window of the first AP and the second AP, where the start time and the end time of the transmission opportunity window of the first AP are determined, and the second AP is configured.
  • the start time and the end time of the transmission opportunity window may be a start time and a time length of determining a transmission opportunity window of the first AP, and a start time and a time length of the transmission opportunity window of the second AP.
  • the first AP competes for the access channel in the transmission opportunity window of the first AP and the transmission opportunity window of the second AP according to the time length and the sequence of the transmission opportunity window of the first AP and the second AP.
  • the first AP may determine, according to the time length and the sequence of the transmission opportunity window of the first AP and the second AP, the transmission opportunity window of the first AP and the transmission opportunity window of the second AP, respectively; And accessing the access channel in the transmission opportunity window of the first AP and the second AP in sequence according to the sequence of transmission opportunities of the first AP and the second AP.
  • the first AP determines a time length and a sequence of the transmission opportunity window of the first AP and the second AP, where the time length of the transmission opportunity window of the first AP is determined, and the transmission of the second AP is determined.
  • the first AP competes for the access channel in the transmission opportunity window of the first AP and the transmission opportunity window of the second AP according to the time length and the sequence of the transmission opportunity window of the first AP and the second AP.
  • the method may include: determining, by the first AP, a transmission opportunity window of the first AP according to a time length and a sequence of transmission opportunities of the first AP and the second AP, and according to the second AP Determining a transmission opportunity window of the second AP according to a length of time of the transmission opportunity window and a start frame sent by the second AP to indicate a transmission opportunity window of the second AP, according to the first AP And a sequence of transmission opportunity windows of the second AP, in sequence, contending for accessing the channel in a transmission opportunity window of the first AP and the second AP.
  • the first AP may determine, according to a sequence of transmission opportunity windows of the first AP and the second AP, a location where the transmission opportunity window of the second AP appears substantially, and further, according to the second AP, The start frame indicating the start of the transmission opportunity window of the second AP determines the start point of the transmission opportunity window of the second AP, and determines the end point of the transmission opportunity window of the second AP according to the length of time of the transmission opportunity window of the second AP.
  • the first AP may further determine an end point of the transmission opportunity window of the second AP according to the end frame that is sent by the second AP to indicate the end of the transmission opportunity window of the second AP.
  • the first AP may be in the transmission opportunity window of the first AP only according to the shared target channel policy, and may also determine that the access channel may not be simultaneously contending in the transmission opportunity window of the second AP. Competing access channels.
  • the purpose of the first AP competing for the access channel is to communicate with the STA in the BSS where the first AP is located. Therefore, the first AP transmits the transmission opportunity window and the second AP in the first AP. In addition to the contention access channel in the opportunity window, the STAs in the BSS where the first AP is located may also be in the transmission opportunity window of the first AP to compete for the access channel.
  • the manner in which the first AP indicates, in the transmission opportunity window of the first AP, that the STAs in the BSS of the first AP are contending for the access channel may include:
  • the first AP sends a first start frame and an end frame to the STA in the transmission opportunity window of the first AP, respectively, to indicate that the STA competes in the time defined by the first start frame and the end frame.
  • the access channel is contending, and when the end frame sent by the associated first AP is received, the contention is stopped.
  • the first start frame and the end frame may be newly defined management frames or beacon frames.
  • the transmission opportunity window of the first AP allows other APs (for example, the second AP) to simultaneously contend for the access channel
  • the first start frame and the end frame sent by the first AP may be provided in the BSS where the first AP is located.
  • the STA can compete for the access channel, and the STAs in the BSS where other APs are located can also compete for the access channel.
  • the manner in which the first AP indicates, in the transmission opportunity window of the first AP, that the STAs in the BSS of the first AP are contending for the access channel may include:
  • the first AP sends a second start frame to the STA in the transmission opportunity window of the first AP, where the second start frame carries a length of time that the first AP indicates that the STA contends for the access channel, to indicate that the STA
  • the second start frame After receiving the second start frame, contending for the access channel within the time length indicated by the first AP; wherein, the time length indicated by the first AP does not exceed the transmission opportunity window of the first AP.
  • the second start frame may be a newly defined management frame or a beacon frame.
  • the second starting frame sent by the first AP may be used for the STA in the BSS where the first AP is located to compete. Outside the access channel, STAs in the BSS where other APs are located can also compete for access channels.
  • the STA in the BSS where the first AP is located can simultaneously contend for the access channel in the transmission opportunity window of the second AP.
  • the STA it is determined that the access channel can be simultaneously contiguous within the transmission opportunity window of the second AP according to certain information.
  • the first AP may send the target shared channel policy to the STA in the BSS where the first AP is located, so that the STA determines, according to the target shared channel policy, whether the second AP is available. Competing access channels within the transmission opportunity window. And receiving, by the STA, a target sharing policy sent by the first AP, and then determining, according to the target shared channel policy, whether the access channel can be contending within the transmission opportunity window of the second AP. And determining, by the STA according to the target shared channel policy, whether the channel may be contending for the access channel in the transmission opportunity window of the second AP, and determining whether the second AP can be in the second according to the target shared channel policy.
  • the process of contending for the access channel in the transmission opportunity window of the AP is the same and will not be described again.
  • the second AP may be received and sent in the transmission opportunity window of the second AP.
  • the indication information contends for the access channel in the transmission opportunity window of the second AP according to the indication information sent by the second AP in the transmission opportunity window of the second AP.
  • the first AP may send a channel sharing message to the STA in the BSS where the first AP is located, where the channel sharing message includes an identifier of the second AP, to indicate that the STA may be in the The transmission opportunity window of the two APs contends to access the channel.
  • the STA receives the channel sharing message sent by the first AP, and then determines whether the access channel can be contending in the transmission opportunity window of the second AP according to whether the channel sharing message includes the identifier of the second AP.
  • the indication information that is sent by the second AP in the transmission opportunity window of the second AP may be received, according to the transmission of the second AP in the second AP.
  • the indication information sent within the opportunity window contends for the access channel within the transmission opportunity window of the second AP.
  • the STA contending for the access channel in the transmission opportunity window of the second AP according to the indication information that is sent by the second AP in the transmission opportunity window of the second AP may include:
  • the STA may receive the third start frame and the third end frame that are sent by the second AP in the transmission opportunity window of the second AP, and compete for the access channel in the time defined by the third start frame and the third end frame; or The STA may receive the fourth start frame sent by the second AP in the transmission opportunity window of the second AP, and contend for the access channel within the time length indicated by the second AP carried by the fourth start frame, and the time indicated by the second AP The length does not exceed the transmission opportunity window of the second AP.
  • some STAs in the BSS where the first AP is located may not be in the communication range of the second AP, for example, if the first AP and the second AP are no longer in communication with each other,
  • the overlapping area of the first AP and the second AP may be relatively small, so that the STA in the BSS where the first AP is located may not be in the communication range of the second AP, so that the STA in the BSS where the first AP is located cannot be It is determined whether the access channel can be contending within the transmission opportunity window of the second AP by receiving various frames transmitted by the second AP.
  • the STA in the BSS of the second AP may be instructed to compete for the access channel in the BSS of the second AP.
  • the access channel is also contending in the transmission opportunity window of the second AP according to the indication of the first AP.
  • the first AP indicates, in the transmission opportunity window of the second AP, the manner in which the STAs in the BSS of the first AP contend for the access channel, and the first AP may indicate the BSS of the first AP in the transmission opportunity window of the first AP.
  • the way in which STAs compete for access to the channel For example, the first AP sends a fifth start frame and a fifth end frame to the STA respectively in the transmission opportunity window of the second AP to indicate the STA. Competing for access channels within a time defined by the fifth start frame and the fifth end frame. For the STA, it will start from the fifth start frame sent by the associated first AP, and contend for the access channel, and stop when receiving the fifth end frame sent by the associated first AP. Competing access channels.
  • the first AP sends a sixth start frame to the STA in the transmission opportunity window of the second AP, where the sixth start frame carries a length of time that the first AP indicates that the STA contends for the access channel, to indicate the location
  • the STA contends to access the channel within the time length indicated by the first AP, and the time length indicated by the first AP does not exceed the transmission opportunity window of the second AP.
  • the access channel is contending, and the time length indicated by the first AP ends, and the contention access channel is stopped.
  • the time length and the sequence of the transmission opportunity window of the first AP and the second AP may be sent. Give the second AP.
  • the target shared channel policy may also be sent to the second AP. This allows the second AP to determine whether to simultaneously contend for the access channel within the transmission opportunity window of the first AP.
  • the first AP may send the time length and sequence of the transmission window of the first AP and the second AP, and the target shared channel policy to the second AP.
  • the first AP may send, by using different processes, the time length and sequence of the transmission opportunity window of the first AP and the second AP, and the target shared channel policy to the second AP.
  • the first AP determines, according to the information of the second AP and the information of the second AP that competes for the same channel, the length of time that the first AP and the second AP compete for the transmission opportunity window used by the access channel.
  • the time length and sequence of the transmission opportunity windows of the two APs competing for access information in the transmission opportunity window of the two APs may allow different BSSs to share the channel on the basis of the principle of ensuring fairness.
  • FIG. 4 is a flowchart of still another channel access method according to an embodiment of the present invention. As shown in FIG. 4, the method includes:
  • the STA associated with the first AP receives the target shared channel policy sent by the first AP, where the target shared channel policy is that the first AP competes with the first AP according to the shared channel policy supported by the first AP. Determined by the shared channel policy supported by the second AP accessing the same channel. 402. The STA determines, according to the target shared channel policy, whether the channel can be contending for access in a transmission opportunity window of the second AP.
  • the STA When it is determined that the channel may be contending for access in the transmission opportunity window of the second AP, the STA is configured according to the indication information that is sent by the second AP in the transmission opportunity window of the second AP.
  • the transmission opportunity window of the second AP competes for access to the channel.
  • the method further includes: the STA competing in the transmission opportunity window of the first AP according to the indication information that is sent by the first AP in the transmission opportunity window of the first AP Enter the channel.
  • the STA contends to access the channel in the transmission opportunity window of the first AP according to the indication information that is sent by the first AP in the transmission opportunity window of the first AP, including:
  • the STA contends to access the channel in a transmission opportunity window of the second AP according to the indication information that is sent by the second AP in the transmission opportunity window of the second AP, including :
  • a fourth starting frame that is sent by the second AP in a transmission opportunity window of the second AP, where the fourth starting frame includes a length of time for the second AP to contend for accessing the channel
  • the STA contends to access the channel within the time length indicated by the second AP, and the length of time indicated by the second AP does not exceed the number.
  • the transmission time window of the second AP is not exceeded.
  • the method provided in this embodiment is adapted to the method provided in the embodiment shown in FIG. 3, and is from the first AP.
  • the method provided in this embodiment is adapted to the method provided in the embodiment shown in FIG. 3, and is from the first AP.
  • STAs in the BSS refer to the embodiment shown in FIG. 3, and details are not described in this embodiment.
  • FIG. 5 is a flowchart of still another channel access method according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
  • the second AP sends the information about the second AP to the first AP that is in the same channel as the second AP, so that the first AP is configured according to the information of the first AP and the second AP.
  • the information of the AP determines the length and sequence of the transmission opportunity window used by the first AP and the second AP to compete for access to the channel respectively.
  • the second AP receives a time length and a sequence of transmission opportunity windows of the first AP and the second AP that are sent by the first AP, and receives a target shared channel policy sent by the first AP.
  • the target shared channel policy is determined by the first AP according to a shared channel policy supported by the first AP and a shared channel policy supported by the second AP.
  • the second AP determines, according to the target shared channel policy, whether the channel can be concurrently accessed in the transmission opportunity window of the first AP.
  • the time length of the second AP according to the transmission opportunity window of the first AP and the second AP
  • the sequence competing to access the channel in a transmission opportunity window of the first AP and a transmission opportunity window of the second AP.
  • the method provided in this embodiment is adapted to the method provided in the embodiment shown in FIG. 3, and is a description from the perspective of the second AP.
  • the second AP involved in this embodiment may be any AP that competes with the first AP for accessing the same channel. That is to say, the method provided in this embodiment can be used to contend for accessing the channel between the two APs that are contending for the same channel.
  • the second AP when the second AP competes for the access channel, the second AP sends the information of the second AP to the first AP.
  • the information of the second AP For example, a beacon frame that the second AP can transmit or a broadcast frame that carries related information.
  • the information of the second AP may include: a priority of a BSS where the second AP is located, a code of a commercial protocol that the second AP complies with, a number of STAs associated with the second AP, and a load of the second AP, but it is not limited to this.
  • the information of the first AP may include: a priority of a BSS where the first AP is located, a code of a commercial protocol that the first AP complies with, a number of STAs associated with the first AP, and a load of the first AP, but Not limited to this.
  • the second AP may directly send the information of the second AP to the first AP. If the first AP and the second AP are not within the communication range of each other, the second AP may send the information of the second AP to the first AP by the STAs that are in the coverage of the first AP and the second AP at the same time. Specifically, the information of the second AP first arrives at the STA, and then the STA forwards the information to the first AP.
  • the first AP may determine, according to the information of the first AP and the information of the second AP, that the first AP and the second AP compete for access to the transmission opportunity window used by the channel respectively.
  • the time length and the sequence are determined, and the target shared channel policy is determined according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP.
  • the first AP competes with the first AP and the second AP for the length and sequence of the transmission opportunity window used by the access channel, and the target shared channel policy is sent to the second AP.
  • the method further includes: the second AP sending a broadcast frame to the first AP, where the broadcast frame includes a shared channel policy supported by the second AP.
  • the second AP may receive, in the same process, the time length and sequence of the transmission opportunity window used by the first AP and the second AP that are sent by the first AP to compete for access to the channel, and the target. Shared channel policy.
  • the second AP may determine whether the access channel can be simultaneously contiguous within the transmission opportunity window of the first AP according to the target shared channel policy.
  • the process of determining whether the second AP can simultaneously contend for the access channel in the transmission opportunity window of the first AP according to the target shared channel policy may include:
  • the second AP may determine, according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located, whether the transmission opportunity of the first AP is available. Competing for access channels simultaneously in the window;
  • the second AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether it can compete simultaneously in the transmission opportunity window of the first AP. Access channel.
  • the second AP determines, according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located, whether the UE can compete in the transmission opportunity window of the first AP.
  • the method of accessing the channel may include: if the priority of the BSS where the first AP is located is lower than or equal to the lower priority of the BSS where the second AP is located, the second AP determines that the AP may simultaneously compete in the transmission opportunity window of the first AP. Into the channel.
  • the method for determining whether the second AP can compete for the access channel in the transmission opportunity window of the first AP according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located is not limited to The above may also be other ways.
  • the second AP may determine, according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located, whether the channel can be simultaneously contending for the access channel in the transmission opportunity window of the first AP.
  • the priority of the BSS where the first AP is located is known in advance. For example, in a case where the information of the first AP includes the priority of the BSS where the first AP is located, the second AP knows in advance the priority of the BSS of the first AP. For example, in a scenario in which each AP adopts a distributed manner to determine the priority of the respective BSS, the second AP also knows the priority of the first AP in advance.
  • the second AP may determine whether it is possible to simultaneously contend for the access channel in the transmission opportunity window of the first AP according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located. Do not know the priority of the BSS where the first AP is located. For example, if the information of the first AP does not include the priority of the BSS where the first AP is located, the second AP knows in advance the priority of the BSS of the first AP. Based on this, the second AP may determine whether it is possible to compete for the access channel in the transmission opportunity window of the first AP according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located.
  • the second AP may send a priority acquisition request to the first AP to request the priority of the BSS where the first AP is located, and then receive the priority of the BSS of the first AP returned by the first AP for the priority acquisition request.
  • the second AP may receive a beacon frame periodically sent by the first AP, obtain a priority of the BSS where the first AP is located from the received beacon frame, and the like.
  • the second AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether it can simultaneously contend for the access channel within the transmission opportunity window of the first AP.
  • Ways can include:
  • the second AP determines that the access channel can be simultaneously contending within the transmission opportunity window of the first AP.
  • the second AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether the access channel can be simultaneously contending in the transmission opportunity window of the first AP.
  • the manner of the present invention is not limited to the above, and may be other methods.
  • the second AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether it can compete for the access channel in the transmission opportunity window of the first AP, possibly
  • the code of the commercial agreement that the first AP complies with is known in advance. For example, in the case where the information of the first AP includes the code of the commercial protocol that the first AP complies with, the second AP knows in advance the code of the commercial protocol that the first AP complies with.
  • the second AP determines, according to the code of the commercial protocol that the first AP complies with and the code of the commercial protocol that the second AP complies with, whether it can compete for the access channel in the transmission opportunity window of the first AP, possibly
  • the code of the commercial agreement that the first AP complies with is not known. For example, in a case where the information of the first AP does not include the code of the commercial protocol that the first AP complies with, the second AP determines the code of the commercial agreement according to the first AP and the code of the commercial protocol that the second AP complies with.
  • the second AP may send a commercial protocol code acquisition request to the first AP to request the code of the commercial protocol that the first AP complies with, and then receive the first AP-compliant business returned by the first AP for the commercial protocol code acquisition request.
  • the code of the agreement may be received.
  • the second AP may receive a beacon frame periodically sent by the first AP, obtain a code of a commercial protocol that the first AP complies with from the received beacon frame, and the like.
  • the transmission may be performed at the first AP according to the time length and sequence of the transmission opportunity window of the first AP and the second AP.
  • the opportunity window and the transmission opportunity window of the second AP compete for access to the channel.
  • the first AP determines a time length and a sequence of the transmission opportunity window of the first AP and the second AP, where the start time and the end time of the transmission opportunity window of the first AP are determined, and the second AP is configured.
  • the start time and the end time of the transmission opportunity window may be a start time and a time length of determining a transmission opportunity window of the first AP, and a start time and a time length of the transmission opportunity window of the second AP.
  • the second AP competes for the access channel in the transmission opportunity window of the first AP and the transmission opportunity window of the second AP according to the time length and the sequence of the transmission opportunity window of the first AP and the second AP.
  • the method includes: the time that the second AP can be based on the transmission opportunity window of the first AP and the second AP Length and sequence, respectively, determining a transmission opportunity window of the first AP and a transmission opportunity window of the second AP; and then, the second AP is sequentially in the first AP according to a sequence of transmission opportunities of the first AP and the second AP Competing for access to the channel within the transmission opportunity window of the second AP.
  • the first AP determines a time length and a sequence of the transmission opportunity window of the first AP and the second AP, where the time length of the transmission opportunity window of the first AP is determined, and the transmission opportunity window of the second AP is determined.
  • the second AP competes for the access channel in the transmission opportunity window of the first AP and the transmission opportunity window of the second AP according to the time length and the sequence of the transmission opportunity window of the first AP and the second AP.
  • the method may include: determining, by the second AP, a transmission opportunity window of the second AP according to a time length and a sequence of the transmission opportunity window of the first AP and the second AP, and according to the first AP Determining a transmission opportunity window of the first AP according to a length of a transmission opportunity window and a start frame sent by the first AP to indicate a transmission opportunity window of the first AP, according to the first AP And a sequence of transmission opportunity windows of the second AP, in sequence, contending for accessing the channel in a transmission opportunity window of the first AP and the second AP.
  • the second AP may determine, according to a sequence of transmission opportunity windows of the first AP and the second AP, a location where the transmission opportunity window of the first AP appears substantially, and further, according to the information sent by the first AP.
  • the start frame indicating the start of the transmission opportunity window of the first AP determines a starting point of the transmission opportunity window of the first AP, and determines an end point of the transmission opportunity window of the first AP according to the length of time of the transmission opportunity window of the first AP.
  • the second AP may further determine an end point of the transmission opportunity window of the first AP according to the end frame sent by the first AP for indicating the end of the transmission opportunity window of the first AP.
  • the second AP may also determine that the access channel may not be simultaneously contiguous within the transmission opportunity window of the first AP according to the shared target channel policy. Then, when it is determined that the access channel cannot be simultaneously contending within the transmission opportunity window of the first AP, the second AP contends for the access channel only within the transmission opportunity window of the second AP.
  • the purpose of the second AP competing for the access channel is to communicate with the STA in the BSS where the second AP is located. Therefore, the second AP transmits the transmission opportunity window and the second AP in the first AP. In addition to the contention access channel in the opportunity window, the STAs in the BSS where the second AP is located may also be in the transmission opportunity window of the second AP to compete for the access channel.
  • the second AP indicates the second AP in the transmission opportunity window of the second AP.
  • the manner in which the STAs in the BSS compete for access to the channel may include:
  • the second AP sends a first start frame and an end frame to the STA in the transmission opportunity window of the second AP, respectively, to indicate that the STA competes in the time defined by the first start frame and the end frame.
  • the access channel is contending, and when the end frame sent by the associated second AP is received, the contention is stopped.
  • the first start frame and the end frame may be newly defined management frames or beacon frames.
  • the first start frame and the end frame sent by the second AP may be provided in the BSS where the second AP is located.
  • the STAs in the BSS of the other APs can also contend for the access channel. For details, refer to the description of the embodiment shown in FIG. 4 .
  • the method for the second AP to indicate that the STAs in the BSS in the BSS compete for the access channel in the transmission opportunity window of the second AP may include:
  • the second AP sends a second start frame to the STA in the transmission opportunity window of the second AP, where the second start frame carries a length of time that the second AP indicates that the STA contends for the access channel, to indicate the STA Receiving the start of the second start frame, competing for the access channel within the time length indicated by the second AP; wherein, the length of time indicated by the second AP does not exceed the transmission opportunity window of the second AP.
  • the second start frame may be a newly defined management frame or a beacon frame.
  • the second start frame sent by the second AP may be used for the STA in the BSS where the second AP is located.
  • the STAs in the BSS where the other APs are located may also compete for the access channel. For details, refer to the description of the embodiment shown in FIG.
  • the STAs in the BSS where the second AP is located may simultaneously contend for the access channel in the transmission opportunity window of the first AP.
  • the STA it is determined that the access channel can be simultaneously contiguous within the transmission opportunity window of the first AP according to certain information.
  • the second AP may send the target shared channel policy to the STA in the BSS where the second AP is located, so that the STA determines, according to the target shared channel policy, whether Competing for access channels within a transmission opportunity window of the first AP. And receiving, by the STA, a target sharing policy sent by the second AP, and then determining, according to the target shared channel policy, whether the access channel can be contending within the transmission opportunity window of the first AP.
  • the STA determines, according to the target shared channel policy, whether a process of competing for an access channel can be queried within the transmission opportunity window of the first AP, and determining, by the second AP, whether the first AP can be in the first
  • the process of contending for the access channel in the transmission opportunity window of the AP is the same and will not be described again.
  • the STA determines that the access channel can be contending in the transmission opportunity window of the first AP
  • the indication information that is sent by the first AP in the transmission opportunity window of the first AP may be received, according to the transmission of the first AP in the first AP.
  • the indication information sent within the opportunity window contends for the access channel within the transmission opportunity window of the first AP.
  • the second AP may send a channel sharing message to the STA in the BSS where the second AP is located, where the channel sharing message includes an identifier of the first AP, to indicate that the STA may be in the An access opportunity window of an AP accesses the channel.
  • the STA receives the channel sharing message sent by the second AP, and then determines whether the access channel can be contending in the transmission opportunity window of the first AP according to whether the channel sharing message includes the identifier of the first AP.
  • the indication information that is sent by the first AP in the transmission opportunity window of the first AP may be received, according to the transmission of the first AP in the first AP.
  • the indication information sent within the opportunity window contends for the access channel within the transmission opportunity window of the first AP.
  • the STA contending for the access channel in the transmission opportunity window of the first AP according to the indication information sent by the first AP in the transmission opportunity window of the first AP may include:
  • the STA may receive the third start frame and the third end frame that are sent by the first AP in the transmission opportunity window of the first AP, and compete for the access channel within a time defined by the third start frame and the third end frame; or The STA may receive the fourth start frame sent by the first AP in the transmission opportunity window of the first AP, and contend for the access channel, the time indicated by the first AP, within the time length indicated by the first AP carried by the fourth start frame. The length does not exceed the transmission opportunity window of the first AP.
  • the STAs in the BSS where the second AP is located may not be in the communication range of the first AP, for example, in a case where the second AP and the first AP are not in communication range with each other,
  • the overlapping area of the AP and the second AP may be relatively small. Therefore, the STA in the BSS where the second AP is located may not be in the communication range of the first AP, so that the STA in the BSS where the second AP is located cannot receive the STA.
  • the various frames transmitted by the first AP determine whether the access channel can be contending within the transmission opportunity window of the first AP. Based on this, the second AP determines the transporter that can be at the first AP.
  • the STAs in the BSS where the second AP is located may be instructed to compete for the access channel in the transmission opportunity window of the first AP.
  • the access channel is also contending within the transmission opportunity window of the first AP according to the indication of the second AP.
  • the second AP indicates, in the transmission opportunity window of the first AP, the manner in which the STAs in the BSS of the second AP contend for the access channel, and the second AP may indicate the BSS of the second AP in the transmission opportunity window of the second AP.
  • the way in which STAs compete for access to the channel For example, the second AP sends a fifth start frame and a fifth end frame to the STA respectively in the transmission opportunity window of the first AP, to indicate that the STA is in the fifth start frame and the fifth The access channel is contending for the time defined by the end frame.
  • the STA For the STA, it will start from the fifth start frame sent by the second AP to which it is associated, contend for the access channel, and stop when receiving the fifth end frame sent by the associated second AP. Competing access channels.
  • the second AP sends a sixth start frame to the STA in the transmission opportunity window of the first AP, where the sixth start frame carries a second AP indicating the length of time that the STA contends for the access channel, to indicate the location.
  • the STA contends for the access channel within the time length indicated by the second AP, and the time length indicated by the second AP does not exceed the transmission opportunity window of the first AP.
  • the access channel is contending, and the time length indicated by the second AP ends, and the contention access channel is stopped.
  • the second AP reports the information of the first AP to the first AP that competes for the same channel, so that the first AP determines that the first AP and the second AP compete for the transmission opportunity window used by the access channel.
  • the length of time and the sequence, and the target shared channel policy, and then the second AP determines whether the access information can be simultaneously contiguous in the transmission opportunity window of the first AP based on the target shared channel policy sent by the first AP, and the determination result is According to the time length and sequence of the transmission opportunity windows of the two APs, the access information is contending in the transmission opportunity window of the two APs, and different BSSs may be allowed to share the channel on the basis of the principle of ensuring fairness.
  • FIG. 6 is a schematic structural diagram of a channel access control unit according to an embodiment of the present invention.
  • the channel access control unit includes: a receiving module 61, a first determining module 62, a second determining module 63, and a sending module 64.
  • the receiving module 61 is configured to receive information reported by each AP that contends to access the same channel.
  • the first determining module 62 is configured to determine, according to the information received by the receiving module 61, a transmission opportunity window used by each AP to contend for access to the channel.
  • the second determining module 63 is configured to determine, according to the preset shared channel policy, the first determining module 62 Whether the other APs are allowed to compete with the AP for accessing the channel at the same time in the determined transmission opportunity window of each AP.
  • the sending module 64 is configured to: when the determining result of the second determining module 63 is allowed, send indication information that allows other APs to simultaneously contend for the transmission opportunity window of the channel to the AP corresponding to the transmission opportunity window and allow simultaneous Competing for accessing other APs of the channel, such that devices in the basic service set BSS where the AP corresponding to the transmission opportunity window are located and devices in the BSS where other APs that are allowed to simultaneously access the channel are located in the transmission opportunity The channel is simultaneously contending for access to the channel.
  • the sending module 64 is further configured to: when the determining result of the second determining module 63 is not allowed, send the indication information that does not allow other APs to simultaneously contend for the transmission opportunity window of the channel. An AP corresponding to the transmission opportunity window, so that devices in the BSS where the AP corresponding to the transmission opportunity window compete for access to the channel in the transmission opportunity window.
  • the second determining module 63 is specifically configured to determine, according to the priority of the BSS of each AP, the transmission opportunity of each AP when the preset shared channel policy is a BSS priority sharing policy. Whether the other APs are allowed to compete with the AP for accessing the channel at the same time; or, when the preset shared channel policy is a commercial protocol sharing policy, each AP is determined according to the code of the commercial protocol that each AP complies with. Whether other APs are allowed to compete with the AP for access to the channel at the same time in the transmission opportunity window.
  • the second determining module 63 is configured to determine, according to the priority of the BSS where each AP is located, whether the transmission channel of each AP is allowed in the transmission opportunity window when the preset shared channel policy is the BSS priority sharing policy.
  • the other APs compete with the AP for accessing the channel at the same time, including:
  • the second determining module 63 is specifically configured to determine, according to the priority of the BSS where each AP is located, an AP or a BSS where the priority of the BSS allowed in the transmission opportunity window of each AP is higher than the priority of the BSS where the AP is located.
  • An AP having the same priority as the BSS of the AP is competing for access to the channel at the same time.
  • the second determining module 63 is configured to determine, according to the code of the commercial protocol that each AP complies with, when the preset shared channel policy is a commercial protocol sharing policy, whether other APs are allowed in the transmission opportunity window of each AP. Simultaneously competing with the AP to access the channel, including:
  • the second determining module 63 is specifically configured to determine, according to the code of the commercial protocol that each AP complies with, that the same code of the compliant commercial protocol can simultaneously contend for access to the channel within the transmission opportunity window of each other.
  • the sending module 64 is specifically configured to send, to the AP corresponding to the transmission opportunity window, the start time and the end time of the transmission opportunity window that allows other APs to simultaneously contend for the channel, and allow simultaneous Competing for other APs accessing the channel; or
  • the sending module 64 is specifically configured to send a start time and a time length of a transmission opportunity window that allows other APs to simultaneously contend for the channel, and send the AP corresponding to the transmission opportunity window and other devices that allow simultaneous access to the channel. AP.
  • the sending module 64 is further configured to send a start frame sending time and an ending frame sending time to each AP, so that the AP is in the BSS where the AP is located at the start frame sending time.
  • the STA of the station sends a first start frame, and sends an end frame to the STA in the BSS where the AP is located to indicate that the STA in the BSS where the AP is located is at the first start frame and the end. Competing for access to the channel within a time defined by the frame; wherein, the time defined by the first start frame and the end frame does not exceed a transmission opportunity window of the AP; or
  • the sending module 64 is further configured to send a start frame sending time to each AP and indicate where each AP is located.
  • the STA in the BSS contends for the length of time for accessing the channel, so that the AP sends a second start frame to the station STA in the BSS where the AP is located at the start frame sending time, and in the second
  • the start frame carries a length of time indicating that the STA contends to access the channel, to indicate that the STA in the BSS where the AP is located starts from the second start frame, and indicates that the STA contends to access the channel. Competing for access to the channel within a length of time; wherein, indicating that the STA contends to access the channel does not exceed a transmission opportunity window of the AP.
  • the information reported by the AP in this embodiment includes: at least one of the priority of the BSS where the AP is located, the code of the commercial protocol that the AP complies with, the number of STAs associated with the AP, and the load of the AP, but is not limited thereto.
  • the first determining module 62 is specifically configured to determine, according to the information received by the receiving module 61, a start time and an end time of a transmission opportunity window used by each AP to contend for access to the channel. ; or
  • the first determining module 62 is specifically configured to determine, according to the information received by the receiving module 61, a start time and a length of time for each AP to contend for a transmission opportunity window used for accessing the channel.
  • the channel access control unit provided in this embodiment may be an AC, or may be implemented in an AC, or may be an AC independent control unit or the like.
  • the function modules of the channel access control unit provided in this embodiment can be used to execute the process of the method embodiment shown in FIG. 1.
  • the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the channel access control unit determines, according to the information of each AP that contends to access the same channel, the transmission opportunity window used by each AP to compete for the access channel, and then determines whether the transmission opportunity window of each AP is determined according to the shared channel policy. Allowing other APs to simultaneously contend for the access channel, and when the determination result is allowed, the indication information of the transmission opportunity window that allows other APs to simultaneously contend for the access channel is sent to the AP of the transmission opportunity window and other APs that are allowed to simultaneously contend for the access channel. Therefore, devices in the BSS where the APs are located can simultaneously contend for access to the channel in the transmission opportunity window, and different BSSs can be allowed to share channels on the basis of the principle of ensuring fairness.
  • FIG. 7 is a schematic structural diagram of another channel access control unit according to an embodiment of the present invention.
  • the channel access control unit includes: a receiver 71, a processor 72, a transmitter 73, and a memory 74.
  • the receiver 71 is configured to receive information reported by each AP that contends to access the same channel.
  • Memory 74 can include read only memory and random access memory and provides instructions and data to processor 72. A portion of memory 74 may also include non-volatile random access memory (NVRAM)
  • NVRAM non-volatile random access memory
  • Memory 74 stores the following elements, executable modules or data structures, or a subset thereof, or their extended set:
  • Operation instructions Includes various operation instructions for implementing various operations.
  • Operating System Includes a variety of system programs for implementing basic services and handling hardware-based tasks.
  • the processor 72 performs the following operations by calling an operation instruction stored in the memory 74 (the operation instruction can be stored in the operating system):
  • the transmitter 73 is configured to: when the determination result of the processor 72 is allowed, send indication information that allows other APs to simultaneously contend for the transmission opportunity window of the channel to be sent to the AP corresponding to the transmission opportunity window. And allowing other APs to access the same channel at the same time, so that the equipment in the basic service set BSS where the AP corresponding to the transmission opportunity window is located and the equipment in the BSS where other APs that are allowed to simultaneously access the channel are located in the The channel is simultaneously contending for access to the channel within the transmission opportunity window.
  • the processor 72 can control the operation of the channel access control unit, and the processor 72 can also be referred to as a central processing unit (CPU).
  • Memory 74 can include read only memory and random access memory and provides instructions and data to processor 72. A portion of the memory 74 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the channel access control unit are coupled together by a bus system 75.
  • the bus system 75 may include a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 75 in the figure.
  • Processor 72 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method may be completed by an integrated logic circuit of hardware in the processor 72 or an instruction in the form of software.
  • the processor 72 described above may be a general purpose processor, a digital signal processor (DSP), 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.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules 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 74, and the processor 72 reads the information in the memory 74 and combines the hardware to perform the steps of the above method.
  • the transmitter 73 is further configured to: when the determination result of the processor 72 is not allowed, send, to the transmission, indication information that does not allow other APs to simultaneously contend for the transmission opportunity window of the channel.
  • An AP corresponding to the opportunistic window so that devices in the BSS where the AP corresponding to the transmission opportunity window compete for access to the channel in the transmission opportunity window.
  • the processor 72 is specifically configured to determine, according to the priority of the BSS of each AP, the transmission opportunity window of each AP when the preset shared channel policy is a BSS priority sharing policy. Whether other APs are allowed to compete with the AP for accessing the channel at the same time; or, when the preset shared channel policy is a commercial protocol sharing policy, according to the commercial protocol that each AP complies with The code determines whether other APs are allowed to compete with the AP for access to the channel within the transmission opportunity window of each AP.
  • the processor 72 is configured to determine, according to the priority of the BSS of each AP, whether other APs are allowed in the transmission opportunity window of each AP when the preset shared channel policy is the BSS priority sharing policy. Simultaneously competing with the AP to access the channel, including:
  • the processor 72 is specifically configured to determine, according to the priority of the BSS where each AP is located, the priority of the BSS whose priority is allowed to be higher than the priority of the BSS where the AP is located in the transmission opportunity window of each AP.
  • An AP having the same priority as the BSS of the AP competes for access to the channel.
  • the processor 72 is configured to determine, according to the code of the commercial protocol that each AP complies with, when the preset shared channel policy is a commercial protocol sharing policy, whether other APs and other APs are allowed in the transmission opportunity window of each AP.
  • the AP simultaneously contending for access to the channel including:
  • the processor 72 is specifically configured to determine, according to the code of the commercial protocol that each AP complies with, that the same code of the compliant commercial protocol can simultaneously contend for access to the channel within each other's transmission opportunity window.
  • the transmitter 73 is specifically configured to send a start time and an end time of a transmission opportunity window that allows other APs to simultaneously contend for access to the channel, and send the AP corresponding to the transmission opportunity window and allow simultaneous Competing for other APs accessing the channel; or
  • the transmitter 73 is specifically configured to send a start time and a time length of a transmission opportunity window that allows other APs to simultaneously contend for access to the channel, and send the AP corresponding to the transmission opportunity window and other devices that allow simultaneous competition for access to the channel. AP.
  • the transmitter 73 is further configured to send a start frame sending time and an ending frame sending time to each AP, so that the AP is in the BSS where the AP is located at the start frame sending time.
  • the STA of the station sends a first start frame, and sends an end frame to the STA in the BSS where the AP is located to indicate that the STA in the BSS where the AP is located is at the first start frame and the end. Competing for access to the channel within a time defined by the frame; wherein, the time defined by the first start frame and the end frame does not exceed a transmission opportunity window of the AP; or
  • the transmitter 73 is further configured to send, to each AP, a start frame sending time and a length of time indicating that the STA in the BSS where each AP is contending to access the channel, so that the AP sends the start frame at the time of sending
  • the STA in the BSS where the AP is located sends a second start frame, and carries a length of time in the second start frame indicating that the STA contends to access the channel, to indicate that the AP is located in the BSS.
  • the STA contends to access the channel within a length of time indicating that the STA contends to access the channel; wherein, the length of time indicating that the STA contends to access the channel does not exceed The transmission opportunity window of the AP.
  • the information reported by the AP in this embodiment includes: at least one of the priority of the BSS where the AP is located, the code of the commercial protocol that the AP complies with, the number of STAs associated with the AP, and the load of the AP, but is not limited thereto.
  • the processor 72 is specifically configured to determine, according to the information received by the receiver 71, a start time and an end time of each of the APs for contending for access to the transmission opportunity window used by the channel; or
  • the processor 72 is specifically configured to determine, according to the information received by the receiver 71, a start time and a length of time for each AP to use to access the transmission opportunity window used by the channel.
  • time length of the transmission opportunity window of each AP determined by the processor 72 may be the same; or, the length of time of the transmission opportunity window of each AP determined by the processor 72 may also be different.
  • the channel access control unit provided in this embodiment may be an AC, or may be implemented in an AC, or may be an AC independent control unit or the like.
  • the channel access control unit provided in this embodiment may be used to perform the process of the method embodiment shown in FIG. 1.
  • the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the channel access control unit determines, according to the information of each AP that contends to access the same channel, the transmission opportunity window used by each AP to compete for the access channel, and then determines whether the transmission opportunity window of each AP is determined according to the shared channel policy. Allowing other APs to simultaneously contend for the access channel, and when the determination result is allowed, the indication information of the transmission opportunity window that allows other APs to simultaneously contend for the access channel is sent to the AP of the transmission opportunity window and other APs that are allowed to simultaneously contend for the access channel. Therefore, devices in the BSS where the APs are located can simultaneously contend for access to the channel in the transmission opportunity window, and different BSSs can be allowed to share channels on the basis of the principle of ensuring fairness.
  • FIG. 8 is a schematic structural diagram of an AP according to an embodiment of the present invention. As shown in Figure 8, the
  • the AP includes: a transmitting module 81, a receiving module 82, and a channel contention module 83.
  • the sending module 81 is configured to report information to the channel access control unit when the contending access channel is required, so that the channel access control unit determines all the contention according to the information reported by the APs that contend for accessing the channel. Each of the APs entering the channel is used to contend for a transmission opportunity window for accessing the channel.
  • the receiving module 82 is configured to receive indication information that is sent by the channel access control unit to indicate that the AP competes to access a transmission opportunity window that can be used by the channel.
  • the channel contention module 83 is configured to contend for accessing the channel in a transmission opportunity window indicated by the indication information received by the receiving module 82.
  • the receiving module 82 is specifically configured to receive a start time and an end time of the transmission opportunity window sent by the channel access control unit; or
  • the receiving module 82 is specifically configured to receive a start time and a length of time of the transmission opportunity window sent by the channel access control unit.
  • the AP further includes: a contention indication module.
  • the contention indication module is configured to indicate, within the transmission opportunity window indicated by the indication information received by the receiving module 82, that the STA in the BSS of the AP contends to access the channel.
  • the contention indication module is configured to send, to the STA in the BSS where the AP is located, a STA that indicates that the STA starts to contend for accessing the channel at a start time of the start of the frame access control unit. a start frame, and sending, at the end frame transmission time indicated by the channel access control unit, an end frame indicating that the STA stops competing to access the channel, to indicate that the STA is in the Competing for accessing the channel within a time defined by the first start frame and the end frame; wherein, the first start frame and the end frame are limited by a time that does not exceed the transmission opportunity window; or
  • the contention indication module is configured to send, to the STA in the BSS where the AP is located, a second, to indicate that the STA starts to contend for accessing the channel, at a start time of the start of the frame access control unit.
  • a start frame where the second start frame carries a length of time that the STA indicated by the channel access control unit contends to access the channel, to indicate that the STA receives the second start frame Initially, contending for accessing the channel within a time length indicated by the channel access control unit; wherein, the length of time indicated by the channel access control unit does not exceed the transmission opportunity window.
  • the receiving module 82 is further configured to receive the start frame sending time and the end frame sending time sent by the channel access control unit; or
  • the receiving module 82 is further configured to receive the start frame sending time sent by the channel access control unit and the length of time indicating that the STA contends to access the channel.
  • the function modules of the AP provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 2, and the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the AP provided in this embodiment cooperates with the channel access control unit provided in the foregoing embodiment, and contends to access the channel in the transmission opportunity window indicated by the indication information sent by the channel access control unit, which can ensure fairness. Based on the principle, different BSSs are allowed to share channels.
  • FIG. 9 is a schematic structural diagram of another AP according to an embodiment of the present invention.
  • the AP includes: a transmitter 91, a receiver 92, a processor 93, and a memory 94.
  • the transmitter 91 is configured to report information to the channel access control unit when the access channel needs to be contending, so that the channel access control unit determines all the contention according to the information reported by the APs that contend for accessing the channel. Each of the APs entering the channel is used to contend for a transmission opportunity window for accessing the channel.
  • the receiver 92 is configured to receive indication information that is sent by the channel access control unit to indicate that the AP competes to access a transmission opportunity window that can be used by the channel.
  • Memory 94 can include read only memory and random access memory and provides instructions and data to processor 93. A portion of memory 94 may also include non-volatile random access memory (NVRAM)
  • NVRAM non-volatile random access memory
  • Memory 94 stores the following elements, executable modules or data structures, or a subset thereof, or their extended set:
  • Operation instructions Includes various operation instructions for implementing various operations.
  • Operating System Includes a variety of system programs for implementing basic services and handling hardware-based tasks.
  • the processor 93 performs the following operations by calling an operation instruction stored in the memory 94 (the operation instruction can be stored in the operating system):
  • the channel is contending for access within a transmission opportunity window indicated by the indication information received by the receiver 92.
  • the processor 93 can control the operation of the AP of the embodiment, and the processor 93 can also be referred to as a CPU.
  • Memory 94 can include read only memory and random access memory and provides instructions and data to processor 93.
  • a portion of memory 94 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the AP are coupled together by a bus system 95.
  • the bus system 95 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 95 in the figure.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 93 or implemented by the processor 93.
  • Processor 93 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 93 or an instruction in the form of software.
  • the processor 93 described above may be a general purpose processor, a digital signal processor (DSP), 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.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules 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 94, and the processor 93 reads the information in the memory 94 and combines the hardware to perform the steps of the above method.
  • the receiver 92 is specifically configured to receive a start time and an end time of the transmission opportunity window sent by the channel access control unit; or
  • the receiver 92 is specifically configured to receive a start time and a length of time of the transmission opportunity window sent by the channel access control unit.
  • the processor 93 is further configured to indicate, within the transmission opportunity window indicated by the indication information received by the receiver 92, that the STAs in the BSS where the AP is located compete for access to the channel.
  • the processor 93 is specifically configured to send, by the transmitter 91, a start frame transmission time indicated by the channel access control unit, to the STA in the BSS where the AP is located, to indicate that the STA starts to compete for access. Determining a first start frame of the channel, and sending, by the transmitter 91, an end frame indicating that the STA stops competing to access the channel, to indicate, by the transmitter 91, at an end frame transmission time indicated by the channel access control unit, to indicate And the STA contends to access the channel in a time defined by the first start frame and the end frame; wherein, the time that the first start frame and the end frame are defined does not exceed the transmission opportunity window.
  • the transmitter 91 is further configured to send, to the STAs in the BSS where the AP is located, a first start frame indicating that the STA starts to contend for accessing the channel, and send the STA to the STA to stop the contention access.
  • the end frame of the channel is further configured to send, to the STAs in the BSS where the AP is located, a first start frame indicating that the STA starts to contend for accessing the channel, and send the STA to the STA to stop the contention access.
  • the processor 93 is specifically operable to be indicated by the transmitter 91 at the channel access control unit And sending, by the STA in the BSS where the AP is located, a second start frame for instructing the STA to start to contend for accessing the channel, where the second start frame carries the channel access control Determining, by the unit, the length of time that the STA contends to access the channel, to indicate that the STA starts from the second start frame, and competes for access in the time length indicated by the channel access control unit. a channel; wherein, the length of time indicated by the channel access control unit does not exceed the transmission opportunity window.
  • the transmitter 91 is further configured to send, to the STAs in the BSS where the AP is located, a second start frame for indicating that the STA starts to contend for accessing the channel.
  • the receiver 92 is further configured to receive the start frame sending time and the end frame sending time sent by the channel access control unit; or
  • the receiver 92 is further configured to receive the start frame transmission time sent by the channel access control unit and the length of time indicating that the STA contends to access the channel.
  • the AP provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 2.
  • the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the AP provided in this embodiment cooperates with the channel access control unit provided in the foregoing embodiment, and contends to access the channel in the transmission opportunity window indicated by the indication information sent by the channel access control unit, which can ensure fairness. Based on the principle, different BSSs are allowed to share channels.
  • FIG. 10 is a schematic structural diagram of a channel access apparatus according to an embodiment of the present invention.
  • the device may be implemented in the first AP or implemented as the first AP.
  • the apparatus includes: an obtaining module 1001, a first determining module 1002, a second determining module 1003, and a channel contention module 1004.
  • the obtaining module 1001 is configured to acquire information about a second AP that is contending with the first AP to access the same channel, and determine, according to the information of the first AP and the information of the second AP, the first AP and the The time length and sequence of the transmission opportunity window used by the second AP to compete for access to the channel respectively.
  • a first determining module 1002 configured to determine, according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP, a target shared channel policy used by the first AP and the second AP .
  • the second determining module 1003 is configured to determine, according to the target shared channel policy determined by the first determining module 1002, whether the channel can be concurrently accessed in the transmission opportunity window of the second AP.
  • the channel competition module 1004 is configured to determine, at the second determining module 1003, that the second AP is available. The time length and sequence of the transmission opportunity window of the first AP and the second AP determined by the obtaining module 1001 in the transmission opportunity window while competing for accessing the channel, in the first AP The transmission opportunity window and the transmission opportunity window of the second AP compete for access to the channel.
  • the channel contention module 1004 is further configured to: when the second determining module 1003 determines that the channel is not contending for access in the transmission opportunity window of the second AP, only in the first The access opportunity window of the AP contends to access the channel.
  • the channel access apparatus further includes: a receiving module 1005.
  • the receiving module 1005 is configured to: before the first determining module 1002 determines the target shared channel policy, receive a broadcast frame sent by the second AP, where the broadcast frame includes a shared channel policy supported by the second AP, to The first determining module 1002 provides a shared channel policy supported by the second AP.
  • the target shared channel policy determined by the first determining module 1002 is a BSS priority sharing policy.
  • the second determining module 1003 is specifically configured to determine, according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located, whether it is within the transmission opportunity window of the second AP. At the same time, the channel is accessed by competition.
  • the second determining module 1003 is specifically configured to determine that the second AP can be transmitted when the priority of the BSS where the second AP is located is lower than or equal to the priority of the BSS where the first AP is located.
  • the channel is simultaneously contending for access to the channel within the opportunity window.
  • the target shared channel policy determined by the first determining module 1002 is a business protocol sharing policy.
  • the second determining module 1003 is specifically configured to determine, according to the code of the commercial protocol that the first AP complies with, the code of the commercial protocol that the second AP complies with, whether it is within the transmission opportunity window of the second AP. At the same time, the channel is accessed by competition.
  • the second determining module 1003 is specifically configured to determine, when the code of the first AP-compliant commercial protocol and the code of the second AP-compliant commercial protocol are the same, determine the transmission that can be performed at the second AP The channel is simultaneously contending for access to the channel within the opportunity window.
  • the channel access apparatus further includes: a first contention indication module
  • the first contention indication module 1006 is configured to indicate, in the transmission opportunity window of the first AP that is determined by the obtaining module 1001, that the STAs in the BSS where the first AP is located contend for accessing the channel.
  • the first contention indication module 1006 is specifically configured to send a first start frame and an end frame to the STA respectively in a transmission opportunity window of the first AP, to indicate that the STA is in the first Competing for access to the channel within a time defined by the start frame and the end frame; or The first contention indication module 1006 is specifically configured to send a second start frame to the STA in a transmission opportunity window of the first AP, where the second start frame carries the first AP, and the STA is instructed to compete.
  • the length of time in which the channel is received to indicate that the STA starts to access the second start frame, and contends to access the channel within a time length indicated by the first AP; where the first AP The indicated length of time does not exceed the transmission opportunity window of the first AP.
  • the channel access apparatus further includes: a first sending module 1007.
  • the first sending module 1007 is configured to send the target shared channel policy determined by the first determining module 1002 to the STA in the BSS where the first AP is located, so that the STA determines, according to the target shared channel policy, whether Competing for accessing the channel in the transmission opportunity window of the second AP; or, for sending a channel sharing message to the STA, the channel sharing message includes an identifier of the second AP, to indicate the STA
  • the channel may be contending for access within a transmission opportunity window of the second AP.
  • the channel contention module 1004 is specifically configured to determine, according to the time length and sequence of the transmission opportunity window of the first AP and the second AP, respectively, a transmission opportunity window of the first AP. And a transmission opportunity window of the second AP, and sequentially transmitting transmission opportunities of the first AP and the second AP according to a sequence of transmission opportunities of the first AP and the second AP Competing access to the channel within the window; or
  • the channel competition module 1004 is specifically configured to determine, according to a time length and a sequence of the transmission opportunity window of the first AP and the second AP, a transmission opportunity window of the first AP, and according to the second AP Determining a transmission opportunity window of the second AP according to a length of time of the transmission opportunity window and a starting frame sent by the second AP to indicate a transmission opportunity window of the second AP, according to the first AP And a sequence of transmission opportunity windows of the second AP, in sequence, contending for accessing the channel in a transmission opportunity window of the first AP and the second AP.
  • the channel access apparatus further includes: a second sending module 1008.
  • the second sending module 1008 is configured to send, to the second AP, the time length and sequence of the transmission opportunity window of the first AP and the second AP determined by the obtaining module 1001, and the first determining
  • the target shared channel policy determined by the module 1002 is sent to the second AP, so that the second AP determines whether to simultaneously contend for access to the channel within the transmission opportunity window of the first AP.
  • the acquiring module 1001 is specifically configured to receive information about the second AP that is sent by STAs that are in the coverage of the first AP and the second AP.
  • the channel access apparatus further includes: a second contention indication module 1009.
  • the second contention indication module 1009 is configured to indicate, in the transmission opportunity window of the second AP that is determined by the obtaining module 1001, that the STAs in the BSS where the first AP is located contend for accessing the channel.
  • the function modules of the channel access device provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 3, and the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the channel access device provided in this embodiment is implemented in the first AP or implemented as the first AP, and determines that the first AP and the second AP compete according to the information of the first AP and the information of the second AP that competes for the same channel.
  • the access information is contending in the transmission opportunity window of the two APs, which can be allowed on the basis of the principle of guaranteeing fairness. Different BSSs share channels.
  • FIG. 12 is a schematic structural diagram of still another channel access apparatus according to an embodiment of the present invention.
  • the device may be implemented in the first AP or implemented as the first AP.
  • the apparatus includes: a memory 1201 and a processor 1202.
  • Memory 1201 can include read only memory and random access memory and provides instructions and data to processor 602. A portion of the memory 1201 may also include non-volatile random access memory (NVRAM)
  • NVRAM non-volatile random access memory
  • Memory 1201 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:
  • Operation instructions Includes various operation instructions for implementing various operations.
  • Operating System Includes a variety of system programs for implementing basic services and handling hardware-based tasks.
  • the processor 1202 calls the operation instruction stored in the memory 1201.
  • the first AP competes with the second AP that is in the same channel, and determines that the first AP and the second AP compete for the information according to the information of the first AP and the information of the second AP. And determining, according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP, determining the first AP, And a target shared channel policy that is used by the second AP, and determining, according to the target shared channel policy determined by the first determining module, whether the access station can be simultaneously contiguous in the transmission opportunity window of the second AP a channel, and when determining that the channel can be simultaneously contending for access in the transmission opportunity window of the second AP, according to a time length and a sequence of transmission opportunity windows of the first AP and the second AP And contending for accessing the channel in a transmission opportunity window of the first AP and a transmission opportunity window of the second AP.
  • the channel access device of this embodiment may further include a receiver 1203 and a transmitter 1204, which are responsible for completing communication between the channel access device and other devices.
  • the processor 1202 can control the operation of the channel access device of this embodiment, and the processor 1202 can also be referred to as a CPU.
  • Memory 1201 can include read only memory and random access memory and provides instructions and data to processor 1202.
  • a portion of memory 1201 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the channel access device of this embodiment are coupled together by a bus system 1205.
  • the bus system 1205 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 1205 in the figure.
  • Processor 1202 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1202 or an instruction in the form of software.
  • the processor 1202 described above may be a general purpose processor, a digital signal processor (DSP), 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.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in conventional memory, such as random 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 1201, and the processor 1202 reads the information in the memory 1201 and performs the steps of the above method in combination with its hardware.
  • the processor 1202 is further configured to: when it is determined that the channel is not contending for access in the transmission opportunity window of the second AP, only in a transmission opportunity window of the first AP Competing access to the channel.
  • the receiver 1203 is specifically configured to: before the processor 1202 determines the target shared channel policy, receive a broadcast frame sent by the second AP, where the broadcast frame includes the second AP supported by the second AP.
  • the channel policy is shared to provide the processor 1202 with a shared channel policy supported by the second AP.
  • the target shared channel policy determined by the processor 1202 is a BSS priority sharing policy. Based on this, the processor 1202 is specifically configured to determine, according to the priority of the BSS where the first AP is located and the priority of the BSS where the second AP is located, whether it can compete in the transmission opportunity window of the second AP. Access to the channel.
  • the processor 1202 is specifically configured to determine, when the priority of the BSS where the second AP is located is lower than or equal to the priority of the BSS where the first AP is located, determine a transmission opportunity window that can be in the second AP. Simultaneously accessing the channel.
  • the target shared channel policy determined by processor 1202 is a commercial protocol sharing policy. Based on this, the processor 1202 is specifically configured to determine, according to the code of the commercial protocol that the first AP complies with, the code of the commercial protocol that the second AP complies with, whether it can compete in the transmission opportunity window of the second AP. Access to the channel.
  • the processor 1202 is specifically configured to determine, when the code of the first AP-compliant commercial protocol and the code of the second AP-compliant commercial protocol are the same, determine a transmission opportunity window that can be in the second AP. Simultaneously accessing the channel.
  • the processor 1202 is further configured to indicate, within the transmission opportunity window of the first AP, that the STAs in the BSS where the first AP is located contend for accessing the channel.
  • the processor 1202 is specifically configured to send, by the transmitter 1204, a first start frame and an end frame to the STA respectively in a transmission opportunity window of the first AP, to indicate that the STA is in the first A time frame defined by a start frame and the end frame contends for access to the channel.
  • the transmitter 1204 can be configured to send the first start frame and the end frame to the STA.
  • the processor 1202 is specifically configured to send, by the transmitter 1204, a second start frame to the STA in a transmission opportunity window of the first AP, where the second start frame carries the first AP to indicate that the STA competes The length of time for accessing the channel, to indicate that the STA starts to access the second start frame, and contends to access the channel within a time length indicated by the first AP; The length of time indicated by the AP does not exceed the transmission opportunity window of the first AP.
  • the transmitter 1204 is further configured to send a second start frame to the STA.
  • the transmitter 1204 is further configured to send the target shared channel policy determined by the processor 1202 to the STA in the BSS where the first AP is located, so that the STA shares the channel according to the target.
  • the policy determines whether the channel can be contending for access to the channel in the transmission opportunity window of the second AP, or is configured to send a channel sharing message to the STA, where the channel sharing message includes an identifier of the second AP, Instructing the STA to contend for access to the channel within a transmission opportunity window of the second AP.
  • the processor 1202 is specifically configured to determine a transmission opportunity window of the first AP according to a time length and a sequence of transmission opportunities of the first AP and the second AP, respectively. a transmission opportunity window of the second AP, and in accordance with a sequence of transmission opportunities of the first AP and the second AP, sequentially transmitting transmission opportunity windows of the first AP and the second AP Internally accessing the channel; or
  • the processor 1202 is specifically configured to determine, according to a time length and a sequence of the transmission opportunity window of the first AP and the second AP, a transmission opportunity window of the first AP, and according to the transmission of the second AP Determining, by the second AP, a start frame sent by the second AP to indicate a start of a transmission opportunity window of the second AP, determining a transmission opportunity window of the second AP, according to the sum of the first AP The sequence of the transmission opportunity window of the second AP is contending for access to the channel in the transmission opportunity window of the first AP and the second AP.
  • the transmitter 1204 is further configured to send, to the second AP, a time length and a sequence of transmission opportunity windows of the first AP and the second AP determined by the processor 1202. And transmitting, by the processor 1202, the target shared channel policy to the second AP, so that the second AP determines whether to simultaneously contend for accessing the channel in a transmission opportunity window of the first AP.
  • the processor 1202 is specifically configured to receive, by the receiver 1203, information about the second AP that is sent by the STA that is in the coverage of the first AP and the second AP.
  • the receiver 1203 is further configured to receive information about the second AP sent by the STA that is in the coverage of the first AP and the second AP.
  • the processor 1202 is further configured to indicate, within the transmission opportunity window of the second AP, that the STAs in the BSS where the first AP is located contend for accessing the channel.
  • the channel access device provided in this embodiment may be used to perform the process of the method embodiment shown in FIG. 3. The specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the channel access device provided in this embodiment is implemented in the first AP or implemented as the first AP, and determines that the first AP and the second AP compete according to the information of the first AP and the information of the second AP that competes for the same channel.
  • the access information is contending in the transmission opportunity window of the two APs, which can be allowed on the basis of the principle of guaranteeing fairness.
  • Different BSSs share channels.
  • FIG. 13 is a schematic structural diagram of a STA according to an embodiment of the present invention.
  • the STA is associated with the first AP.
  • the STA includes: a receiving module 1301, a determining module 1302, and a channel competing module 1303.
  • the receiving module 1301 is configured to receive a target shared channel policy that is sent by the first AP, where the target shared channel policy is that the first AP competes with the first AP according to a shared channel policy supported by the first AP. Determined by the shared channel policy supported by the second AP accessing the same channel.
  • the determining module 1302 is configured to determine, according to the target shared channel policy received by the receiving module 1301, whether the channel can be contending for access in a transmission opportunity window of the second AP.
  • the channel contention module 1303 is configured to send, according to the second AP, a transmission opportunity window of the second AP, when the determining module 1302 determines that the channel can be contending for access in the transmission opportunity window of the second AP.
  • the indication information contends to access the channel in a transmission opportunity window of the second AP.
  • the channel contention module 1303 is further configured to compete in the transmission opportunity window of the first AP according to the indication information that is sent by the first AP in the transmission opportunity window of the first AP. Enter the channel.
  • the channel contention module 1303 is configured to contend for accessing the channel in a transmission opportunity window of the first AP according to the indication information that is sent by the first AP in a transmission opportunity window of the first AP. , including:
  • the channel contention module 1303 is specifically configured to receive, respectively, a first start frame and a first end frame that are sent by the first AP in a transmission opportunity window of the first AP, where the first start frame and the first end are ended. Competing for access to the channel within a defined time of the frame; or
  • the channel contention module 1303 is specifically configured to receive a second start frame sent by the first AP in a transmission opportunity window of the first AP, starting from receiving the second start frame, at the first AP Indication Competing for accessing the channel within a length of time; wherein, the second starting frame includes a length of time that the first AP indicates that the channel is contending to access the channel, and the length of time indicated by the first AP does not exceed The transmission time window of the first AP.
  • the channel contention module 1303 is configured to compete for access in the transmission opportunity window of the second AP according to the indication information that is sent by the second AP in the transmission opportunity window of the second AP.
  • the channel includes:
  • the channel contention module 1303 is specifically configured to receive, respectively, a third start frame and a third end frame that are sent by the second AP in a transmission opportunity window of the second AP, where the third start frame and the first Competing for access to the channel within a time defined by the end frame; or
  • the channel contention module 1303 is specifically configured to receive a fourth start frame sent by the second AP in a transmission opportunity window of the second AP, starting from receiving the fourth start frame, at the second AP Competing for accessing the channel within a specified length of time; wherein the fourth start frame includes a length of time that the second AP indicates that the channel is contending for access to the channel, and the length of time indicated by the second AP does not exceed The transmission time window of the second AP.
  • the function modules of the STA provided in this embodiment can be used to execute the process of the method embodiment shown in FIG. 4, and the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the STAs provided in this embodiment in conjunction with the channel access devices provided in the foregoing embodiments, may allow different BSSs to share channels on the basis of the principle of ensuring fairness.
  • FIG. 14 is a schematic structural diagram of another STA according to an embodiment of the present invention.
  • the STA is associated with the first AP.
  • the STA includes: a receiver 1401, a processor 1402, and a memory 1403.
  • the receiving module 1401 is configured to receive a target shared channel policy that is sent by the first AP, where the target shared channel policy is that the first AP competes with the first AP according to a shared channel policy supported by the first AP. Determined by the shared channel policy supported by the second AP accessing the same channel.
  • Memory 1403 can include read only memory and random access memory and provides instructions and data to processor 1402. A portion of memory 1403 may also include non-volatile random access memory (NVRAM)
  • NVRAM non-volatile random access memory
  • Memory 1403 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:
  • Operation instructions Includes various operation instructions for implementing various operations.
  • Operating System Includes a variety of system programs for implementing a variety of basic services and handling hardware-based tasks.
  • the processor 1402 performs the following operations by calling an operation instruction stored in the memory 1403 (which can be stored in the operating system):
  • the channel Determining, according to the target shared channel policy received by the receiver 1401, whether the channel can be contending for access in the transmission opportunity window of the second AP, and determining that the channel may be contending in the transmission opportunity window of the second AP
  • the channel is contending for access to the channel in the transmission opportunity window of the second AP according to the indication information sent by the second AP in the transmission opportunity window of the second AP.
  • the STA of this embodiment may further include: a transmitter 1404. Transmitter 1404 cooperates with receiver 1401 to complete communication between the STA and other devices.
  • the processor 1402 controls the operation of the STA of the embodiment.
  • the processor 1402 may also be referred to as a CPU.
  • the memory 1403 may include a read only memory and a random access memory, and provides instructions and data to the processor 1402.
  • a portion of memory 1403 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the STA of the embodiment are coupled together by a bus system 1405.
  • the bus system 1405 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 1405 in the figure.
  • Processor 1402 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1402 or an instruction in a form of software.
  • the processor 1402 described above may be a general purpose processor, a digital signal processor (DSP), 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.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules 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 1403, and the processor 1402 reads the information in the memory 1403, and completes the steps of the above method in combination with the hardware thereof.
  • the processor 1402 is further configured to compete for access in a transmission opportunity window of the first AP according to the indication information that is sent by the first AP in a transmission opportunity window of the first AP.
  • the channel is further configured to compete for access in a transmission opportunity window of the first AP according to the indication information that is sent by the first AP in a transmission opportunity window of the first AP.
  • the processor 1402 is configured to contend for accessing the channel in the transmission opportunity window of the first AP according to the indication information that is sent by the first AP in the transmission opportunity window of the first AP.
  • the processor 1402 is specifically configured to receive, by the receiver 1401, a first start frame and a first end frame that are sent by the first AP in a transmission opportunity window of the first AP, where the first start frame and the first start frame are
  • the receiver 1401 is further configured to receive the first start frame and the first sent by the first AP in the transmission opportunity window of the first AP, in a time defined by the first end frame. End frame; or
  • the processor 1402 is specifically configured to receive, by the receiver 1401, a second start frame that is sent by the first AP in a transmission opportunity window of the first AP, starting from receiving the second start frame, where Competing for accessing the channel within a time length indicated by the first AP, where the second start frame includes a length of time for the first AP to contend for accessing the channel, and the time indicated by the first AP The length does not exceed the transmission time window of the first AP.
  • the receiver 1401 is further configured to receive a second start frame sent by the first AP in a transmission opportunity window of the first AP.
  • the processor 1402 is configured to compete for access in the transmission opportunity window of the second AP according to the indication information that is sent by the second AP in the transmission opportunity window of the second AP.
  • the channel including:
  • the processor 1402 is specifically configured to receive, by the receiver 1401, a third start frame and a third end frame that are sent by the second AP in a transmission opportunity window of the second AP, where the third start frame and The receiver 1401 is further configured to receive a third start frame sent by the second AP in a transmission opportunity window of the second AP, in a time defined by the third end frame. And a third end frame; or
  • the processor 1402 is specifically configured to receive, by the receiver 1403, a fourth start frame that is sent by the second AP in a transmission opportunity window of the second AP, starting from receiving the fourth start frame, where Competing for accessing the channel within a time length indicated by the second AP, where the fourth start frame includes a time length of the contention of the channel indicated by the second AP, and a time indicated by the second AP The length does not exceed the transmission time window of the second AP; correspondingly, the receiver 1401 is further configured to receive the And a fourth start frame sent by the second AP in a transmission opportunity window of the second AP.
  • the STA provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 4, and the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the STAs provided in this embodiment in conjunction with the channel access devices provided in the foregoing embodiments, may allow different BSSs to share channels on the basis of the principle of ensuring fairness.
  • FIG. 15 is a schematic structural diagram of still another channel access apparatus according to an embodiment of the present invention.
  • the channel access device is implemented in the second AP or implemented as a second AP.
  • the apparatus includes: a transmitting module 1501, a receiving module 1502, a determining module 1503, and a channel contention module 1504.
  • the sending module 1501 is configured to send information about the second AP to a first AP that competes with the second AP to access the same channel, so that the first AP is configured according to the information of the first AP and the The information of the second AP determines the length and sequence of the transmission opportunity window used by the first AP and the second AP to compete for access to the channel respectively.
  • the receiving module 1502 is configured to receive a time length and a sequence of transmission opportunity windows of the first AP and the second AP that are sent by the first AP, and receive a target shared channel policy sent by the first AP.
  • the target shared channel policy is determined by the first AP according to the shared channel policy supported by the first AP and the shared channel policy supported by the second AP.
  • the determining module 1503 is configured to determine, according to the target shared channel policy received by the receiving module 1502, whether the channel can be concurrently accessed within the transmission opportunity window of the first AP.
  • the channel contention module 1504 is configured to: according to the determining module 1503, when the channel is simultaneously contending for access to the channel in the transmission opportunity window of the first AP, according to the transmission opportunity window of the first AP and the second AP The length of time and the sequence of contending for access to the channel within the transmission opportunity window of the first AP and the transmission opportunity window of the second AP.
  • the channel contention module 1504 is further configured to: when the determining module 1503 determines that the channel is not contending for access in the transmission opportunity window of the first AP, only in the second AP The channel is contending for access in the transmission opportunity window.
  • the sending module 1501 is further configured to: before the receiving module 1502 receives the target shared channel policy, send a broadcast frame to the first AP, where the broadcast frame includes the shared by the second AP. Channel strategy.
  • the sending module 1501 is specifically configured to send, by the STA that is in the coverage of the first AP and the second AP, the second AP to the first AP.
  • the function modules of the channel access device provided in this embodiment may be used to perform the process of the method embodiment shown in FIG. 5. The specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the channel access device provided in this embodiment is implemented in the second AP or implemented as the second AP, and cooperates with the channel access device and the STA provided by the foregoing embodiment to report the information of the second AP to the same channel.
  • the first AP so that the first AP determines the time length and sequence of the transmission opportunity window used by the first AP and the second AP to compete for the access channel, and the target shared channel policy, and then the second AP is based on the target sharing sent by the first AP.
  • the channel policy determines whether the access information can be simultaneously contending in the transmission opportunity window of the first AP.
  • the intra-competitive access information may allow different BSSs to share channels on the basis of the principle of ensuring fairness.
  • FIG. 16 is a schematic structural diagram of still another channel access apparatus according to an embodiment of the present invention.
  • the channel access device is implemented in the second AP or implemented as a second AP.
  • the apparatus includes: a transmitter 1601, a receiver 1602, a processor 1603, and a memory 1604.
  • the transmitter 1601 is configured to send information about the second AP to a first AP that competes with the second AP for accessing the same channel, so that the first AP is configured according to the information of the first AP and the The information of the second AP determines the length and sequence of the transmission opportunity window used by the first AP and the second AP to compete for access to the channel.
  • the receiver 1602 is configured to receive a time length and a sequence of transmission opportunity windows of the first AP and the second AP that are sent by the first AP, and receive a target shared channel policy sent by the first AP.
  • the target shared channel policy is determined by the first AP according to a shared channel policy supported by the first AP and a shared channel policy supported by the second AP.
  • Memory 1604 can include read only memory and random access memory and provides instructions and data to processor 1603. A portion of memory 1604 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • Memory 1604 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:
  • Operation instructions Includes various operation instructions for implementing various operations.
  • Operating System Includes a variety of system programs for implementing a variety of basic services and handling hardware-based tasks.
  • the processor 1603 performs the following operations by calling an operation instruction stored in the memory 1604 (the operation instruction can be stored in the operating system):
  • the transmission opportunity window of the first AP and the second AP are used according to the length and sequence of the transmission opportunity window of the first AP and the second AP. The channel is contending for access in the transmission opportunity window.
  • the processor 1603 controls the operation of the channel access device of this embodiment, and the processor 1603 can also be referred to as a CPU.
  • Memory 1604 can include read only memory and random access memory and provides instructions and data to processor 1603.
  • a portion of memory 1604 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the channel access device of this embodiment are coupled together by a bus system 1605.
  • the bus system 1605 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 1605 in the figure.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 1603 or by the processor.
  • Processor 1603 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1603 or an instruction in the form of software.
  • the processor 1603 described above may be a general purpose processor, a digital signal processor (DSP), 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.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in conventional memory, such as random 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 1604, and the processor 1603 reads the information in the memory 1604, and performs the steps of the above method in combination with the hardware thereof.
  • the processor 1603 is further configured to: in the transmission opportunity window of the second AP, when it is determined that the channel is not contending for access in the transmission opportunity window of the first AP Competing access to the channel.
  • the transmitter 1601 is further configured to receive the target at the receiver 1602. Before the channel policy is shared, a broadcast frame is sent to the first AP, where the broadcast frame includes a shared channel policy supported by the second AP.
  • the transmitter 1601 is specifically configured to send the information of the second AP to the first AP by using a STA that is in the coverage of the first AP and the second AP.
  • the channel access device provided in this embodiment can be used to perform the process of the method embodiment shown in FIG. 5.
  • the specific working principle is not described here. For details, refer to the description of the method embodiment.
  • the channel access device provided in this embodiment is implemented in the second AP or implemented as the second AP, and cooperates with the channel access device and the STA provided by the foregoing embodiment to report the information of the second AP to the same channel.
  • the first AP so that the first AP determines the time length and sequence of the transmission opportunity window used by the first AP and the second AP to compete for the access channel, and the target shared channel policy, and then the second AP is based on the target sharing sent by the first AP.
  • the channel policy determines whether the access information can be simultaneously contending in the transmission opportunity window of the first AP.
  • the intra-competitive access information may allow different BSSs to share channels on the basis of the principle of ensuring fairness.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明提供一种信道接入方法及设备。方法包括:接收竞争接入同一信道的每个AP上报的信息,根据所述信息,确定每个AP用于竞争接入信道使用的传输机会窗;根据预设的共享信道策略,确定每个AP的传输机会窗内是否允许其他AP与所述AP同时竞争接入信道;如果允许,则将允许其他AP同时竞争接入信道的传输机会窗的指示信息发送给该AP和允许同时竞争接入信道的其他AP,以使这些AP所在BSS内的设备在该传输机会窗内同时竞争接入信道。本发明技术方案在保证公平性原则的基础上,可以允许不同BSS共享信道。

Description

信道接入方法及设备
技术领域
本发明实施例涉及通信技术, 尤其涉及一种信道接入方法及设备。
背景技术
目前, 基于 802. 11 的无线局域网采用的是允许任意基本服务集 (Basic Service Set , 简称为 BSS ) 中的设备, 包括接入点 (Access Point , 简称为 AP) 和站点 (Station, 简称为 STA) 共享信道的接入方法。 在密集部署的场 景下, 同一个信道有可能被多个相邻的 BSS 占用。 这些占用相同信道的 BSS 中的设备通过竞争的方式接入信道, 使得处于交叠区域的设备所面临的竞争 更加激烈, 导致发生碰撞的概率变大, 从而造成 BSS的吞吐量降低。
针对上述问题, 现有技术提出一种在分布式结构下采用 BSS时分接入信 道的方法。 该方法让每个 BSS有各自独立占用信道的时间。 当一个 BSS占用 信道时, 发送指示信息通知其他 BSS在该时间段内不进行信道接入, 接收到 指示信息的 BSS则按照指示信息中指示的时间确定何时进行信道接入, 从而 保证了各个 BSS在独占信道的段时间内的吞吐量。
上述方法保证某一个 BSS在某个时间段内独立占用信道, 但是无法在公 平性原则的基础上满足某些场景下允许特定的多个 BSS 同时共享信道的需 求。 发明内容
本发明实施例提供一种信道接入方法及设备, 用以在保证公平性原则的 基础上, 允许不同 BSS可以共享信道。
第一方面提供一种信道接入方法, 包括:
信道接入控制单元接收竞争接入同一信道的每个接入点 AP上报的信息, 根据所述信息, 确定每个 AP用于竞争接入所述信道使用的传输机会窗;
所述信道接入控制单元根据预设的共享信道策略,确定每个 AP的传输机 会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道; 如果确定结果为允许,则所述信道接入控制单元将允许其他 AP同时竞争 接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP 和 允许同时竞争接入所述信道的其他 AP , 以使所述传输机会窗对应的 AP所在 基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP所在 BSS内 的设备在所述传输机会窗内同时竞争接入所述信道。
结合第一方面, 在第一方面的第一种可能的实现方式中, 所述方法还包 括: 如果确定结果为不允许, 则所述信道接入控制单元将不允许其他 AP同时 竞争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP , 以使所述传输机会窗对应的 AP所在 BSS内的设备在所述传输机会窗内竞 争接入所述信道。
结合第一方面或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, 所述信道接入控制单元根据预设的共享信道策略, 确 定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信 道, 包括:
如果预设的共享信道策略为 BSS优先级共享策略, 所述信道接入控制单 元根据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输机会窗内是否 允许其他 AP与所述 AP同时竞争接入所述信道;
如果预设的共享信道策略为商业协议共享策略, 所述信道接入控制单元 根据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允许 其他 AP与所述 AP同时竞争接入所述信道。
结合第一方面的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, 所述信道接入控制单元根据每个 AP所在 BSS的优先级的大小, 确 定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信 道, 包括:
所述信道接入控制单元根据每个 AP所在 BSS的优先级, 确定在每个 AP 的传输机会窗内允许所在 BSS的优先级比所述 AP所在 BSS的优先级高的 AP 或所在 BSS的优先级和所述 AP所在 BSS的优先级相同的 AP同时竞争接入所 述信道;
所述信道接入控制单元根据每个 AP 遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道,包括: 所述信道接入控制单元根据每个 AP遵从的商业协议的代码,确定遵从的 商业协议的代码相同的 AP 可以在彼此的传输机会窗内同时竞争接入所述信 道。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式或第一方面的第三种可能的实现方式, 在第一方面的第四种 可能的实现方式中,所述信道接入控制单元将允许其他 AP同时竞争接入所述 信道的传输机会窗的指示信息,发送给所述传输机会窗对应的 AP和允许同时 竞争接入所述信道的其他 AP , 包括:
所述信道接入控制单元将允许其他 AP 同时竞争接入所述信道的传输机 会窗的起始时间和结束时间,发送给所述传输机会窗对应的 AP和允许同时竞 争接入所述信道的其他 AP; 或者
所述信道接入控制单元将允许其他 AP 同时竞争接入所述信道的传输机 会窗的起始时间和时间长度,发送给所述传输机会窗对应的 AP和允许同时竞 争接入所述信道的其他 AP。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式或第一方面的第三种可能的实现方式或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: 所述信道接入控制单元向每个 AP发送起始帧发送时刻和结束帧发送时刻, 以 使所述 AP在所述起始帧发送时刻向所述 AP所在 BSS内的站点 STA发送第一 起始帧, 并在所述结束帧发送向所述 AP所在 BSS内的 STA发送结束帧, 以指 示所述 AP所在 BSS内的 STA在所述第一起始帧和所述结束帧限定的时间内竞 争接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时间不超出所 述 AP的传输机会窗; 或者
所述信道接入控制单元向每个 AP发送起始帧发送时刻和指示每个 AP所 在 BSS内的 STA竞争接入所述信道的时间长度, 以使所述 AP在所述起始帧发 送时刻向所述 AP所在 BSS内的站点 STA发送第二起始帧,并在所述第二起始 帧中携带指示所述 STA竞争接入所述信道的时间长度, 以指示所述 AP所在 BSS内的 STA 自所述第二起始帧开始, 在指示所述 STA竞争接入所述信道的 时间长度内竞争接入所述信道; 其中, 指示所述 STA竞争接入所述信道的时 间长度不超出所述 AP的传输机会窗。 结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式或第一方面的第三种可能的实现方式或第一方面的第四种可 能的实现方式或第一方面的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 AP上报的信息包括: 所述 AP所在 BSS的优先级、 所 述 AP遵从的商业协议的代码、所述 AP关联的 STA的数目和所述 AP的负载中 的至少一个。
结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种 可能的实现方式或第一方面的第三种可能的实现方式或第一方面的第四种可 能的实现方式或第一方面的第五种可能的实现方式或第一方面的第六种可能 的实现方式, 在第一方面的第七种可能的实现方式中, 所述信道接入控制单 元根据所述信息, 确定每个 AP用于竞争接入所述信道使用的传输机会窗, 包 括:
所述信道接入控制单元根据所述信息,确定每个 AP用于竞争接入所述信 道使用的传输机会窗的起始时间和结束时间; 或者
所述信道接入控制单元根据所述信息,确定每个 AP用于竞争接入所述信 道使用的传输机会窗的起始时间和时间长度。
结合第一方面的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, 每个 AP的传输机会窗的时间长度相同; 或者
每个 AP的传输机会窗的时间长度不同。
第二方面提供一种信道接入方法, 包括:
当需要竞争接入信道时, 接入点 AP向信道接入控制单元上报信息, 以使 所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确定所 有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输机会 窗;
所述 AP接收所述信道接入控制单元发送的用于指示所述 AP竞争接入所 述信道可以使用的传输机会窗的指示信息;
所述 AP在所述指示信息指示的传输机会窗内竞争接入所述信道。
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 AP接收所 述信道接入控制单元发送的用于指示所述 AP 竞争接入所述信道可以使用的 传输机会窗的指示信息, 包括: 所述 AP 接收所述信道接入控制单元发送的所述传输机会窗的起始时间 和结束时间; 或者
所述 AP 接收所述信道接入控制单元发送的所述传输机会窗的起始时间 和时间长度。
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 AP在所述指示信息指示的传输机会窗内竞争接入 所述信道之后, 还包括:
所述 AP在所述指示信息指示的传输机会窗内指示所述 AP所在 BSS内的 站点 STA竞争接入所述信道。
结合第二方面的第二种可能的实现方式, 在第二方面的第三种可能的实 现方式中,所述 AP在所述指示信息指示的传输机会窗内指示所述 AP所在 BSS 内的站点 STA竞争接入所述信道, 包括:
所述 AP在所述信道接入控制单元指示的起始帧发送时刻, 向所述 AP所 在 BSS内的 STA发送指示所述 STA开始竞争接入所述信道的第一起始帧, 并 在所述信道接入控制单元指示的结束帧发送时刻, 向所述 STA发送指示所述 STA停止竞争接入所述信道的结束帧, 以指示所述 STA在所述第一起始帧和 所述结束帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述 结束帧限定的时间不超出所述传输机会窗; 或者
所述 AP在所述信道接入控制单元指示的起始帧发送时刻, 向所述 AP所 在 BSS内的 STA发送用于指示所述 STA开始竞争接入所述信道的第二起始帧, 所述第二起始帧携带有所述信道接入控制单元指示的所述 STA竞争接入所述 信道的时间长度, 以指示所述 STA 自接收到所述第二起始帧开始, 在所述信 道接入控制单元指示的时间长度内竞争接入所述信道; 其中, 所述信道接入 控制单元指示的时间长度不超出所述传输机会窗。
结合第二方面的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, 所述方法还包括:
所述 AP 接收所述信道接入控制单元发送的所述起始帧发送时刻和所述 结束帧发送时刻; 或者
所述 AP 接收所述信道接入控制单元发送的所述起始帧发送时刻和指示 所述 STA竞争接入所述信道的时间长度。 第三方面提供一种信道接入方法, 包括:
第一接入点 AP获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一 AP的信息和所述第二 AP的信息,确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会窗的时间长度和先后顺序;
所述第一 AP根据所述第一 AP支持的共享信道策略和所述第二 AP支持的 共享信道策略, 确定所述第一 AP和所述第二 AP共同使用的目标共享信道策 略;
所述第一 AP根据所述目标共享信道策略, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道;
当确定可以在所述第二 AP的传输机会窗内同时竞争接入所述信道时,所 述第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后 顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞争接入 所述信道。
结合第三方面, 在第三方面的第一种可能的实现方式中, 所述方法还包 括: 当确定不可以在所述第二 AP的传输机会窗内同时竞争接入所述信道时, 所述第一 AP仅在所述第一 AP的传输机会窗内竞争接入所述信道。
结合第三方面或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, 所述第一 AP根据所述第一 AP支持的共享信道策略和 所述第二 AP支持的共享信道策略,确定所述第一 AP和所述第二 AP共同使用 的目标共享信道策略之前, 还包括:
所述第一 AP接收所述第二 AP发送的广播帧, 所述广播帧包括所述第二 AP支持的共享信道策略。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式, 在第三方面的第三种可能的实现方式中, 所述目标共享信 道策略为基本服务集 BSS优先级共享策略;
所述第一 AP根据所述目标共享信道策略, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道, 包括:
所述第一 AP根据所述第一 AP所在 BSS的优先级和所述第二 AP所在 BSS 的优先级的大小,确定是否可以在所述第二 AP的传输机会窗内同时竞争接入 所述信道。 结合第三方面的第三种可能的实现方式, 在第三方面的第四种可能的实 现方式中, 所述第一 AP根据所述第一 AP所在基本服务集 BSS的优先级和所 述第二 AP所在 BSS的优先级的大小, 确定是否可以在所述第二 AP的传输机 会窗内同时竞争接入所述信道, 包括:
如果所述第二 AP所在 BSS的优先级低于或等于所述第一 AP所在 BSS的 优先级, 则所述第一 AP确定可以在所述第二 AP的传输机会窗内同时竞争接 入所述信道。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式, 在第三方面的第五种可能的实现方式中, 所述目标共享信 道策略为商业协议共享策略;
所述第一 AP根据所述目标共享信道策略, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道, 包括:
所述第一 AP根据所述第一 AP遵从的商业协议的代码和所述第二 AP遵从 的商业协议的代码,确定是否可以在所述第二 AP的传输机会窗内同时竞争接 入所述信道。
结合第三方面的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, 所述第一 AP根据所述第一 AP遵从的商业协议的代码和所述第二 AP遵从的商业协议的代码, 确定是否可以在所述第二 AP的传输机会窗内同 时竞争接入所述信道, 包括:
如果所述第一 AP遵从的商业协议的代码和所述第二 AP遵从的商业协议 的代码相同, 则所述第一 AP确定可以在所述第二 AP的传输机会窗内同时竞 争接入所述信道。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式或第三方面的第五种可能的实现方式或第三方面的第六种可能 的实现方式, 在第三方面的第七种可能的实现方式中, 所述方法还包括: 所 述第一 AP在所述第一 AP的传输机会窗内指示所述第一 AP所在 BSS内的站点 STA竞争接入所述信道。
结合第三方面的第七种可能的实现方式, 在第三方面的第八种可能的实 现方式中,所述第一 AP在所述第一 AP的传输机会窗内指示所述第一 AP所在 BSS内的站点 STA竞争接入所述信道, 包括:
所述第一 AP在所述第一 AP的传输机会窗内分别向所述 STA发送起第一 始帧和结束帧, 以指示所述 STA在所述第一起始帧和所述结束帧限定的时间 内竞争接入所述信道; 或者
所述第一 AP在所述第一 AP的传输机会窗内向所述 STA发送第二起始帧, 所述第二起始帧携带有所述第一 AP指示所述 STA竞争接入所述信道的时间长 度, 以指示所述 STA自接收到所述第二起始帧开始, 在所述第一 AP指示的时 间长度内竞争接入所述信道; 其中, 所述第一 AP指示的时间长度不超出所述 第一 AP的传输机会窗。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式或第三方面的第五种可能的实现方式或第三方面的第六种可能 的实现方式或第三方面的第七种可能的实现方式或第三方面的第八种可能的 实现方式中, 在第三方面的第九种可能的实现方式, 所述方法还包括: 所述 第一 AP将所述目标共享信道策略发送给所述第一 AP所在 BSS内的 STA, 以 使所述 STA根据所述目标共享信道策略确定是否可以在所述第二 AP的传输机 会窗内竞争接入所述信道; 或者
所述第一 AP向所述 STA发送信道共享消息,所述信道共享消息包括所述 第二 AP的标识, 以指示所述 STA可以在所述第二 AP的传输机会窗内竞争接 入所述信道。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式或第三方面的第五种可能的实现方式或第三方面的第六种可能 的实现方式或第三方面的第七种可能的实现方式或第三方面的第八种可能的 实现方式或第三方面的第九种可能的实现方式, 在第三方面的第十种可能的 实现方式中,所述第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的 时间长度和先后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机 会窗内竞争接入所述信道, 包括:
所述第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度 和先后顺序, 分别确定所述第一 AP的传输机会窗和所述第二 AP的传输机会 窗, 并按照所述第一 AP的和所述第二 AP的传输机会窗的先后顺序, 依次在 所述第一 AP的和所述第二 AP的传输机会窗内竞争接入所述信道; 或者
所述第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度 和先后顺序, 确定所述第一 AP的传输机会窗, 并根据所述第二 AP的传输机 会窗的时间长度和所述第二 AP发送的用于指示所述第二 AP的传输机会窗开 始的起始帧, 确定所述第二 AP的传输机会窗, 按照所述第一 AP的和所述第 二 AP的传输机会窗的先后顺序,依次在所述第一 AP的和所述第二 AP的传输 机会窗内竞争接入所述信道。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式或第三方面的第五种可能的实现方式或第三方面的第六种可能 的实现方式或第三方面的第七种可能的实现方式或第三方面的第八种可能的 实现方式或第三方面的第九种可能的实现方式或第三方面的第十种可能的实 现方式, 在第三方面的第十一种可能的实现方式中, 所述方法还包括:
所述第一 AP将所述第一 AP的和所述第二 AP的传输机会窗的时间长度和 先后顺序, 发送给所述第二 AP, 并将所述目标共享信道策略发送给所述第二 AP, 以使所述第二 AP确定是否在所述第一 AP的传输机会窗内同时竞争接入 所述信道。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式或第三方面的第五种可能的实现方式或第三方面的第六种可能 的实现方式或第三方面的第七种可能的实现方式或第三方面的第八种可能的 实现方式或第三方面的第九种可能的实现方式或第三方面的第十种可能的实 现方式或第三方面的第十一种可能的实现方式, 在第三方面的第十二种可能 的实现方式中, 所述第一接入点 AP获取与所述第一 AP竞争接入同一信道的 第二 AP的信息, 包括:
所述第一 AP接收同时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA发送的所述第二 AP的信息。
结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种 可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可 能的实现方式或第三方面的第五种可能的实现方式或第三方面的第六种可能 的实现方式或第三方面的第七种可能的实现方式或第三方面的第八种可能的 实现方式或第三方面的第九种可能的实现方式或第三方面的第十种可能的实 现方式或第三方面的第十一种可能的实现方式或第三方面的第十二种可能的 实现方式, 在第三方面的第十三种可能的实现方式中, 所述方法还包括: 所 述第一 AP在所述第二 AP的传输机会窗内指示所述第一 AP所在 BSS内的 STA 竞争接入所述信道。
第四方面提供一种信道接入方法, 包括:
第一接入点 AP关联的站点 STA接收所述第一 AP发送的目标共享信道策 略, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的共享信道 策略和与所述第一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定 的;
所述 STA根据所述目标共享信道策略,确定是否可以在所述第二 AP的传 输机会窗内竞争接入所述信道;
当确定可以在所述第二 AP 的传输机会窗内竞争接入所述信道时, 所述
STA根据所述第二 AP在所述第二 AP的传输机会窗内发送的指示信息, 在所 述第二 AP的传输机会窗内竞争接入所述信道。
结合第四方面, 在第四方面的第一种可能的实现方式中, 所述方法还包 括: 所述 STA根据所述第一 AP在所述第一 AP的传输机会窗内发送的指示信 息, 在所述第一 AP的传输机会窗内竞争接入所述信道。
结合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 STA根据所述第一 AP在所述第一 AP的传输机会窗内发送的 指示信息, 在所述第一 AP的传输机会窗内竞争接入所述信道, 包括:
所述 STA分别接收所述第一 AP在所述第一 AP的传输机会窗内发送的第 一起始帧和第一结束帧, 并在所述第一起始帧和所述第一结束帧限定的时间 内竞争接入所述信道; 或者
所述 STA接收所述第一 AP在所述第一 AP的传输机会窗内发送的第二起 始帧, 所述第二起始帧包括所述第一 AP 指示的竞争接入所述信道的时间长 度; 所述 STA自接收到所述第二起始帧开始, 在所述第一 AP指示的时间长度 内竞争接入所述信道; 其中, 所述第一 AP 指示的时间长度不超出所述第一 AP的传输时间窗。
结合第四方面或第四方面的第一种可能的实现方式或第四方面的第二种 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 STA根据所 述第二 AP在所述第二 AP的传输机会窗内发送的指示信息,在所述第二 AP的 传输机会窗内竞争接入所述信道, 包括:
所述 STA分别接收所述第二 AP在所述第二 AP的传输机会窗内发送的第 三起始帧和第三结束帧, 并在所述第三起始帧和所述第三结束帧限定的时间 内竞争接入所述信道; 或者
所述 STA接收所述第二 AP在所述第二 AP的传输机会窗内发送的第四起 始帧, 所述第四起始帧包括所述第二 AP 指示的竞争接入所述信道的时间长 度; 所述 STA自接收到所述第四起始帧开始, 在所述第二 AP指示的时间长度 内竞争接入所述信道; 其中, 所述第二 AP 指示的时间长度不超出所述第二 AP的传输时间窗。
第五方面提供一种信道接入方法, 包括:
第二接入点 AP向与所述第二 AP竞争接入同一信道的第一 AP发送所述第 二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的信 息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会 窗的时间长度和先后顺序;
所述第二 AP接收所述第一 AP发送的所述第一 AP的和所述第二 AP的传 输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信道策 略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的共 享信道策略和所述第二 AP支持的共享信道策略确定的;
所述第二 AP根据所述目标共享信道策略, 确定是否可以在所述第一 AP 的传输机会窗内同时竞争接入所述信道;
当确定可以在所述第一 AP的传输机会窗内同时竞争接入所述信道时,所 述第二 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后 顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞争接入 所述信道。
结合第五方面, 在第五方面的第一种可能的实现方式中, 所述方法还包 括: 当确定不可以在所述第一 AP的传输机会窗内同时竞争接入所述信道时, 所述第二 AP仅在所述第二 AP的传输机会窗内竞争接入所述信道。
结合第五方面或第五方面的第一种可能的实现方式, 在第五方面的第二 种可能的实现方式中, 所述第二 AP接收所述第一 AP发送的目标共享信道策 略之前, 还包括:
所述第二 AP向所述第一 AP发送广播帧,所述广播帧包括所述第二 AP支 持的共享信道策略。
结合第五方面或第五方面的第一种可能的实现方式或第五方面的第二种 可能的实现方式, 在第五方面的第三种可能的实现方式中, 所述第二接入点 AP向与所述第二 AP竞争接入同一信道的第一 AP发送所述第二 AP的信息, 包括:
所述第二 AP通过同时处于所述第一 AP和所述第二 AP的覆盖范围内的站 点 STA, 向所述第一 AP发送所述第二 AP的信息。
第六方面提供一种信道接入控制单元, 包括:
接收模块, 用于接收竞争接入同一信道的每个接入点 AP上报的信息; 第一确定模块, 用于根据所述接收模块接收的所述信息, 确定每个 AP用 于竞争接入所述信道使用的传输机会窗;
第二确定模块, 用于根据预设的共享信道策略, 确定所述第一确定模块 确定的每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述 信道;
发送模块, 用于在所述第二确定模块的确定结果为允许时, 将允许其他 AP同时竞争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对 应的 AP和允许同时竞争接入所述信道的其他 AP , 以使所述传输机会窗对应 的 AP所在基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP 所在 BSS内的设备在所述传输机会窗内同时竞争接入所述信道。
结合第六方面, 在第六方面的第一种可能的实现方式中, 所述发送模块 还用于在所述第二确定模块的确定结果为不允许时,将不允许其他 AP同时竞 争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP , 以使所述传输机会窗对应的 AP所在 BSS内的设备在所述传输机会窗内竞争接 入所述信道。 结合第六方面或第六方面的第一种可能的实现方式, 在第六方面的第二 种可能的实现方式中, 所述第二确定模块具体用于在预设的共享信道策略为
BSS优先级共享策略时, 根据每个 AP所在 BSS的优先级的大小, 确定每个 AP 的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道; 或者, 在预设的共享信道策略为商业协议共享策略时,根据每个 AP遵从的商业协议 的代码,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接 入所述信道。
结合第六方面的第二种可能的实现方式, 在第六方面的第三种可能的实 现方式中, 所述第二确定模块用于在预设的共享信道策略为 BSS优先级共享 策略时, 根据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输机会窗 内是否允许其他 AP与所述 AP同时竞争接入所述信道, 包括:
所述第二确定模块具体用于根据每个 AP所在 BSS的优先级,确定在每个 AP的传输机会窗内允许所在 BSS的优先级比所述 AP所在 BSS的优先级高的 AP或所在 BSS的优先级和所述 AP所在 BSS的优先级相同的 AP同时竞争接入 所述信道;
所述第二确定模块用于在预设的共享信道策略为商业协议共享策略时, 根据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允许 其他 AP与所述 AP同时竞争接入所述信道, 包括:
所述第二确定模块具体用于根据每个 AP遵从的商业协议的代码,确定遵 从的商业协议的代码相同的 AP 可以在彼此的传输机会窗内同时竞争接入所 述信道。
结合第六方面或第六方面的第一种可能的实现方式或第六方面的第二种 可能的实现方式或第六方面的第三种可能的实现方式, 在第六方面的第四种 可能的实现方式中,所述发送模块具体用于将允许其他 AP同时竞争接入所述 信道的传输机会窗的起始时间和结束时间, 发送给所述传输机会窗对应的 AP 和允许同时竞争接入所述信道的其他 AP; 或者
所述发送模块具体用于将允许其他 AP 同时竞争接入所述信道的传输机 会窗的起始时间和时间长度,发送给所述传输机会窗对应的 AP和允许同时竞 争接入所述信道的其他 AP。
结合第六方面或第六方面的第一种可能的实现方式或第六方面的第二种 可能的实现方式或第六方面的第三种可能的实现方式或第六方面的第四种可 能的实现方式, 在第六方面的第五种可能的实现方式中, 所述发送模块还用 于向每个 AP发送起始帧发送时刻和结束帧发送时刻, 以使所述 AP在所述起 始帧发送时刻向所述 AP所在 BSS内的站点 STA发送第一起始帧,并在所述结 束帧发送向所述 AP所在 BSS内的 STA发送结束帧, 以指示所述 AP所在 BSS 内的 STA在所述第一起始帧和所述结束帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时间不超出所述 AP 的传输机会 窗; 或者
所述发送模块还用于向每个 AP发送起始帧发送时刻和指示每个 AP所在 BSS内的 STA竞争接入所述信道的时间长度, 以使所述 AP在所述起始帧发送 时刻向所述 AP所在 BSS内的站点 STA发送第二起始帧,并在所述第二起始帧 中携带指示所述 STA竞争接入所述信道的时间长度, 以指示所述 AP所在 BSS 内的 STA自所述第二起始帧开始, 在指示所述 STA竞争接入所述信道的时间 长度内竞争接入所述信道; 其中, 指示所述 STA竞争接入所述信道的时间长 度不超出所述 AP的传输机会窗。
结合第六方面或第六方面的第一种可能的实现方式或第六方面的第二种 可能的实现方式或第六方面的第三种可能的实现方式或第六方面的第四种可 能的实现方式或第六方面的第五种可能的实现方式, 在第六方面的第六种可 能的实现方式中, 所述 AP上报的信息包括: 所述 AP所在 BSS的优先级、 所 述 AP遵从的商业协议的代码、所述 AP关联的 STA的数目和所述 AP的负载中 的至少一个。
结合第六方面或第六方面的第一种可能的实现方式或第六方面的第二种 可能的实现方式或第六方面的第三种可能的实现方式或第六方面的第四种可 能的实现方式或第六方面的第五种可能的实现方式或第六方面的第六种可能 的实现方式, 在第六方面的第七种可能的实现方式中, 所述第一确定模块具 体用于根据所述接收模块接收的所述信息,确定每个 AP用于竞争接入所述信 道使用的传输机会窗的起始时间和结束时间; 或者
所述第一确定模块具体用于根据所述接收模块接收的所述信息, 确定每 个 AP用于竞争接入所述信道使用的传输机会窗的起始时间和时间长度。
结合第六方面的第七种可能的实现方式, 在第六方面的第八种可能的实 现方式中, 每个 AP的传输机会窗的时间长度相同; 或者
每个 AP的传输机会窗的时间长度不同。
第七方面提供一种接入点 AP , 包括:
发送模块, 用于在需要竞争接入信道时, 向信道接入控制单元上报信息, 以使所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确 定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输 机会窗;
接收模块,用于接收所述信道接入控制单元发送的用于指示所述 AP竞争 接入所述信道可以使用的传输机会窗的指示信息;
信道竞争模块, 用于在所述接收模块接收的所述指示信息指示的传输机 会窗内竞争接入所述信道。
结合第七方面, 在第七方面的第一种可能的实现方式中, 所述接收模块 具体用于接收所述信道接入控制单元发送的所述传输机会窗的起始时间和结 束时间; 或者
所述接收模块具体用于接收所述信道接入控制单元发送的所述传输机会 窗的起始时间和时间长度。
结合第七方面或第七方面的第一种可能的实现方式, 在第七方面的第二 种可能的实现方式中, 所述 AP包括: 竞争指示模块, 用于在所述接收模块接 收的所述指示信息指示的传输机会窗内指示所述 AP所在 BSS内的站点 STA竞 争接入所述信道。
结合第七方面的第二种可能的实现方式, 在第七方面的第三种可能的实 现方式中, 所述竞争指示模块具体用于在所述信道接入控制单元指示的起始 帧发送时刻, 向所述 AP所在 BSS内的 STA发送指示所述 STA开始竞争接入所 述信道的第一起始帧, 并在所述信道接入控制单元指示的结束帧发送时刻, 向所述 STA发送指示所述 STA停止竞争接入所述信道的结束帧, 以指示所述
STA在所述第一起始帧和所述结束帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时间不超出所述传输机会窗; 或者
所述竞争指示模块具体用于在所述信道接入控制单元指示的起始帧发送 时刻, 向所述 AP所在 BSS内的 STA发送用于指示所述 STA开始竞争接入所述 信道的第二起始帧, 所述第二起始帧携带有所述信道接入控制单元指示的所 述 STA竞争接入所述信道的时间长度, 以指示所述 STA自接收到所述第二起 始帧开始, 在所述信道接入控制单元指示的时间长度内竞争接入所述信道; 其中, 所述信道接入控制单元指示的时间长度不超出所述传输机会窗。
结合第七方面的第三种可能的实现方式, 在第七方面的第四种可能的实 现方式中, 所述接收模块还用于接收所述信道接入控制单元发送的所述起始 帧发送时刻和所述结束帧发送时刻; 或者
所述接收模块还用于接收所述信道接入控制单元发送的所述起始帧发送 时刻和指示所述 STA竞争接入所述信道的时间长度。
第八方面提供一种信道接入装置,设置于第一接入点 AP内实现或作为所 述第一 AP实现, 所述装置包括:
获取模块,用于获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一 AP的信息和所述第二 AP的信息,确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会窗的时间长度和先后顺序;
第一确定模块, 用于根据所述第一 AP 支持的共享信道策略和所述第二 AP支持的共享信道策略, 确定所述第一 AP和所述第二 AP共同使用的目标共 享信道策略;
第二确定模块, 用于根据所述第一确定模块确定的所述目标共享信道策 略, 确定是否可以在所述第二 AP的传输机会窗内同时竞争接入所述信道; 信道竞争模块,用于在所述第二确定模块确定可以在所述第二 AP的传输 机会窗内同时竞争接入所述信道时, 根据所述第一 AP的和所述第二 AP的传 输机会窗的时间长度和先后顺序, 在所述第一 AP 的传输机会窗和所述第二 AP的传输机会窗内竞争接入所述信道。
结合第八方面, 在第八方面的第一种可能的实现方式中, 所述信道竞争 模块还用于在所述第二确定模块确定不可以在所述第二 AP 的传输机会窗内 同时竞争接入所述信道时,仅在所述第一 AP的传输机会窗内竞争接入所述信 道。
结合第八方面或第八方面的第一种可能的实现方式, 在第八方面的第二 种可能的实现方式中, 所述装置还包括: 接收模块, 用于在所述第一确定模 块确定所述目标共享信道策略之前, 接收所述第二 AP发送的广播帧, 所述广 播帧包括所述第二 AP支持的共享信道策略。 结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式, 在第八方面的第三种可能的实现方式中, 所述目标共享信 道策略为基本服务集 BSS优先级共享策略;
所述第二确定模块具体用于根据所述第一 AP所在 BSS的优先级和所述第 二 AP所在 BSS的优先级的大小, 确定是否可以在所述第二 AP的传输机会窗 内同时竞争接入所述信道。
结合第八方面的第三种可能的实现方式, 在第八方面的第四种可能的实 现方式中,所述第二确定模块具体用于在所述第二 AP所在 BSS的优先级低于 或等于所述第一 AP所在 BSS的优先级时, 确定可以在所述第二 AP的传输机 会窗内同时竞争接入所述信道。
结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式, 在第八方面的第五种可能的实现方式中, 所述目标共享信 道策略为商业协议共享策略;
所述第二确定模块具体用于根据所述第一 AP 遵从的商业协议的代码和 所述第二 AP遵从的商业协议的代码, 确定是否可以在所述第二 AP的传输机 会窗内同时竞争接入所述信道。
结合第八方面的第五种可能的实现方式, 在第八方面的第六种可能的实 现方式中,所述第二确定模块具体用于在所述第一 AP遵从的商业协议的代码 和所述第二 AP遵从的商业协议的代码相同时, 确定可以在所述第二 AP的传 输机会窗内同时竞争接入所述信道。
结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式或第八方面的第三种可能的实现方式或第八方面的第四种可 能的实现方式或第八方面的第五种可能的实现方式或第八方面的第六种可能 的实现方式, 在第八方面的第七种可能的实现方式中, 所述装置还包括: 第一竞争指示模块, 用于在所述第一 AP 的传输机会窗内指示所述第一
AP所在 BSS内的站点 STA竞争接入所述信道。
结合第八方面的第七种可能的实现方式, 在第八方面的第八种可能的实 现方式中,所述第一竞争指示模块具体用于在所述第一 AP的传输机会窗内分 别向所述 STA发送起第一始帧和结束帧, 以指示所述 STA在所述第一起始帧 和所述结束帧限定的时间内竞争接入所述信道; 或者 所述第一竞争指示模块具体用于在所述第一 AP 的传输机会窗内向所述 STA发送第二起始帧, 所述第二起始帧携带有所述第一 AP指示所述 STA竞争 接入所述信道的时间长度, 以指示所述 STA 自接收到所述第二起始帧开始, 在所述第一 AP指示的时间长度内竞争接入所述信道; 其中, 所述第一 AP指 示的时间长度不超出所述第一 AP的传输机会窗。
结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式或第八方面的第三种可能的实现方式或第八方面的第四种可 能的实现方式或第八方面的第五种可能的实现方式或第八方面的第六种可能 的实现方式或第八方面的第七种可能的实现方式或第八方面的第八种可能的 实现方式, 在第八方面的第九种可能的实现方式中, 所述装置还包括: 第一 发送模块, 用于将所述目标共享信道策略发送给所述第一 AP所在 BSS 内的 STA , 以使所述 STA根据所述目标共享信道策略确定是否可以在所述第二 AP 的传输机会窗内竞争接入所述信道; 或者, 用于向所述 STA发送信道共享消 息, 所述信道共享消息包括所述第二 AP的标识, 以指示所述 STA可以在所述 第二 AP的传输机会窗内竞争接入所述信道。
结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式或第八方面的第三种可能的实现方式或第八方面的第四种可 能的实现方式或第八方面的第五种可能的实现方式或第八方面的第六种可能 的实现方式或第八方面的第七种可能的实现方式或第八方面的第八种可能的 实现方式或第八方面的第九种可能的实现方式, 在第八方面的第十种可能的 实现方式中, 所述信道竞争模块具体用于根据所述第一 AP的和所述第二 AP 的传输机会窗的时间长度和先后顺序,分别确定所述第一 AP的传输机会窗和 所述第二 AP的传输机会窗,并按照所述第一 AP的和所述第二 AP的传输机会 窗的先后顺序, 依次在所述第一 AP的和所述第二 AP的传输机会窗内竞争接 入所述信道; 或者
所述信道竞争模块具体用于根据所述第一 AP的和所述第二 AP的传输机 会窗的时间长度和先后顺序, 确定所述第一 AP的传输机会窗, 并根据所述第 二 AP的传输机会窗的时间长度和所述第二 AP发送的用于指示所述第二 AP的 传输机会窗开始的起始帧, 确定所述第二 AP 的传输机会窗, 按照所述第一 AP的和所述第二 AP的传输机会窗的先后顺序, 依次在所述第一 AP的和所述 第二 AP的传输机会窗内竞争接入所述信道。
结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式或第八方面的第三种可能的实现方式或第八方面的第四种可 能的实现方式或第八方面的第五种可能的实现方式或第八方面的第六种可能 的实现方式或第八方面的第七种可能的实现方式或第八方面的第八种可能的 实现方式或第八方面的第九种可能的实现方式或第八方面的第十种可能的实 现方式, 在第八方面的第十一种可能的实现方式中, 所述装置还包括: 第二 发送模块, 用于将所述第一 AP的和所述第二 AP的传输机会窗的时间长度和 先后顺序, 发送给所述第二 AP , 并将所述目标共享信道策略发送给所述第二 AP , 以使所述第二 AP确定是否在所述第一 AP的传输机会窗内同时竞争接入 所述信道。
结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式或第八方面的第三种可能的实现方式或第八方面的第四种可 能的实现方式或第八方面的第五种可能的实现方式或第八方面的第六种可能 的实现方式或第八方面的第七种可能的实现方式或第八方面的第八种可能的 实现方式或第八方面的第九种可能的实现方式或第八方面的第十种可能的实 现方式或第八方面的第十一种可能的实现方式, 在第八方面的第十二种可能 的实现方式中,所述获取模块具体用于接收同时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA发送的所述第二 AP的信息。
结合第八方面或第八方面的第一种可能的实现方式或第八方面的第二种 可能的实现方式或第八方面的第三种可能的实现方式或第八方面的第四种可 能的实现方式或第八方面的第五种可能的实现方式或第八方面的第六种可能 的实现方式或第八方面的第七种可能的实现方式或第八方面的第八种可能的 实现方式或第八方面的第九种可能的实现方式或第八方面的第十种可能的实 现方式或第八方面的第十一种可能的实现方式或第八方面的第十二种可能的 实现方式, 在第八方面的第十三种可能的实现方式中, 所述装置还包括: 第二竞争指示模块, 用于在所述第二 AP 的传输机会窗内指示所述第一 AP所在 BSS内的 STA竞争接入所述信道。
第九方面提供一种站点 STA, 所述 STA关联于所述第一接入点 AP , 所述 STA包括: 接收模块, 用于接收所述第一 AP发送的目标共享信道策略, 所述目标共 享信道策略是所述第一 AP根据所述第一 AP支持的共享信道策略和与所述第 一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定的;
确定模块, 用于根据所述接收模块接收的所述目标共享信道策略, 确定 是否可以在所述第二 AP的传输机会窗内竞争接入所述信道;
信道竞争模块,用于在所述确定模块确定可以在所述第二 AP的传输机会 窗内竞争接入所述信道时, 根据所述第二 AP在所述第二 AP的传输机会窗内 发送的指示信息, 在所述第二 AP的传输机会窗内竞争接入所述信道。
结合第九方面, 在第九方面的第一种可能的实现方式中, 所述信道竞争 模块还用于根据所述第一 AP在所述第一 AP的传输机会窗内发送的指示信息, 在所述第一 AP的传输机会窗内竞争接入所述信道。
结合第九方面的第一种可能的实现方式, 在第九方面的第二种可能的实 现方式中, 所述信道竞争模块用于根据所述第一 AP在所述第一 AP的传输机 会窗内发送的指示信息, 在所述第一 AP的传输机会窗内竞争接入所述信道, 包括:
所述信道竞争模块具体用于分别接收所述第一 AP在所述第一 AP的传输 机会窗内发送的第一起始帧和第一结束帧, 在所述第一起始帧和所述第一结 束帧限定的时间内竞争接入所述信道; 或者
所述信道竞争模块具体用于接收所述第一 AP在所述第一 AP的传输机会 窗内发送的第二起始帧, 自接收到所述第二起始帧开始, 在所述第一 AP指示 的时间长度内竞争接入所述信道; 其中, 所述第二起始帧包括所述第一 AP指 示的竞争接入所述信道的时间长度,所述第一 AP指示的时间长度不超出所述 第一 AP的传输时间窗。
结合第九方面或第九方面的第一种可能的实现方式或第九方面的第二种 可能的实现方式, 在第九方面的第三种可能的实现方式中, 所述信道竞争模 块用于根据所述第二 AP在所述第二 AP的传输机会窗内发送的指示信息, 在 所述第二 AP的传输机会窗内竞争接入所述信道, 包括:
所述信道竞争模块具体用于分别接收所述第二 AP在所述第二 AP的传输 机会窗内发送的第三起始帧和第三结束帧, 在所述第三起始帧和所述第三结 束帧限定的时间内竞争接入所述信道; 或者 所述信道竞争模块具体用于接收所述第二 AP在所述第二 AP的传输机会 窗内发送的第四起始帧, 自接收到所述第四起始帧开始, 在所述第二 AP指示 的时间长度内竞争接入所述信道; 其中, 所述第四起始帧包括所述第二 AP指 示的竞争接入所述信道的时间长度,所述第二 AP指示的时间长度不超出所述 第二 AP的传输时间窗。
第十方面提供一种信道接入装置,设置于第二接入点 AP内实现或作为所 述第二 AP实现, 所述装置包括:
发送模块, 用于向与所述第二 AP竞争接入同一信道的第一 AP发送所述 第二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的 信息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机 会窗的时间长度和先后顺序;
接收模块,用于接收所述第一 AP发送的所述第一 AP的和所述第二 AP的 传输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信道 策略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的 共享信道策略和所述第二 AP支持的共享信道策略确定的;
确定模块, 用于根据所述接收模块接收的所述目标共享信道策略, 确定 是否可以在所述第一 AP的传输机会窗内同时竞争接入所述信道;
信道竞争模块,用于在所述确定模块确定可以在所述第一 AP的传输机会 窗内同时竞争接入所述信道时, 根据所述第一 AP的和所述第二 AP的传输机 会窗的时间长度和先后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的 传输机会窗内竞争接入所述信道。
结合第十方面, 在第十方面的第一种可能的实现方式中, 所述信道竞争 模块还用于在所述确定模块确定不可以在所述第一 AP 的传输机会窗内同时 竞争接入所述信道时, 仅在所述第二 AP的传输机会窗内竞争接入所述信道。
结合第十方面或第十方面的第一种可能的实现方式, 在第十方面的第二 种可能的实现方式中, 所述发送模块还用于在所述接收模块接收所述目标共 享信道策略之前, 向所述第一 AP发送广播帧, 所述广播帧包括所述第二 AP 支持的共享信道策略。
结合第十方面或第十方面的第一种可能的实现方式或第十方面的第二种 可能的实现方式, 在第十方面的第三种可能的实现方式中, 所述发送模块具 体用于通过同时处于所述第一 AP和所述第二 AP的覆盖范围内的站点 STA , 向所述第一 AP发送所述第二 AP的信息。
第十一方面提供一种信道接入控制单元, 包括:
接收器, 用于接收竞争接入同一信道的每个接入点 AP上报的信息; 处理器, 用于根据所述接收器接收的所述信息, 确定每个 AP用于竞争接 入所述信道使用的传输机会窗, 并根据预设的共享信道策略, 确定每个 AP的 传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道;
发射器, 用于在所述处理器的确定结果为允许时, 将允许其他 AP同时竞 争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP 和允许同时竞争接入所述信道的其他 AP , 以使所述传输机会窗对应的 AP所 在基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP所在 BSS 内的设备在所述传输机会窗内同时竞争接入所述信道。
第十二方面提供一种接入点 AP , 包括:
发射器, 用于在需要竞争接入信道时, 向信道接入控制单元上报信息, 以使所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确 定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输 机会窗;
接收器,用于接收所述信道接入控制单元发送的用于指示所述 AP竞争接 入所述信道可以使用的传输机会窗的指示信息;
处理器, 用于在所述接收器接收的所述指示信息指示的传输机会窗内竞 争接入所述信道。
第十三方面提供一种信道接入装置,设置于第一接入点 AP内实现或作为 所述第一 AP实现, 所述装置包括:
存储器, 用于存储程序;
处理器, 用于执行处理所述程序, 以用于:
获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一 AP的信息和所述第二 AP的信息, 确定所述第一 AP和所述第二 AP竞争接入 所述信道分别使用的传输机会窗的时间长度和先后顺序, 并根据所述第一 AP 支持的共享信道策略和所述第二 AP支持的共享信道策略, 确定所述第一 AP 和所述第二 AP共同使用的目标共享信道策略,并根据所述第一确定模块确定 的所述目标共享信道策略,确定是否可以在所述第二 AP的传输机会窗内同时 竞争接入所述信道, 以及在确定可以在所述第二 AP的传输机会窗内同时竞争 接入所述信道时, 根据所述第一 AP的和所述第二 AP的传输机会窗的时间长 度和先后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内 竞争接入所述信道。
第十四方面提供一种站点 STA, 所述 STA关联于所述第一接入点 AP , 所 述 STA包括:
接收器, 用于接收所述第一 AP发送的目标共享信道策略, 所述目标共享 信道策略是所述第一 AP根据所述第一 AP支持的共享信道策略和与所述第一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定的;
处理器, 用于根据所述接收器接收的所述目标共享信道策略, 确定是否 可以在所述第二 AP的传输机会窗内竞争接入所述信道, 以及在确定可以在所 述第二 AP的传输机会窗内竞争接入所述信道时, 根据所述第二 AP在所述第 二 AP的传输机会窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞争 接入所述信道。
第十五方面提供一种信道接入装置,设置于第二接入点 AP内实现或作为 所述第二 AP实现, 所述装置包括:
发射器, 用于向与所述第二 AP竞争接入同一信道的第一 AP发送所述第 二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的信 息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会 窗的时间长度和先后顺序;
接收器,用于接收所述第一 AP发送的所述第一 AP的和所述第二 AP的传 输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信道策 略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的共 享信道策略和所述第二 AP支持的共享信道策略确定的;
处理器, 用于根据所述接收器接收的所述目标共享信道策略, 确定是否 可以在所述第一 AP的传输机会窗内同时竞争接入所述信道, 以及在确定可以 在所述第一 AP的传输机会窗内同时竞争接入所述信道时, 根据所述第一 AP 的和所述第二 AP的传输机会窗的时间长度和先后顺序, 在所述第一 AP的传 输机会窗和所述第二 AP的传输机会窗内竞争接入所述信道。 本发明实施例提供的一种信道接入方法及设备, 信道接入控制单元根据 竞争接入同一信道的各 AP的信息确定各 AP竞争接入信道使用的传输机会窗, 而后根据共享信道策略确定每个 AP的传输机会窗内是否允许其他 AP同时竞 争接入信道, 在确定结果为允许时, 将允许其他 AP同时竞争接入信道的传输 机会窗的指示信息发送给该传输机会窗的 AP 和允许同时竞争接入信道的其 他 AP , 使得这些 AP所在 BSS内的设备可以在该传输机会窗内同时竞争接入 所述信道, 在保证公平性原则的基础上, 可以允许不同 BSS共享信道。
本发明实施例提供的另一种信道接入方法及设备,第一 AP根据自身信息 和竞争同一信道的第二 AP的信息,确定第一 AP和第二 AP竞争接入信道使用 的传输机会窗的时间长度和先后顺序, 并根据各自支持的共享信道策略确定 目标共享信道策略,而后基于目标共享信道策略确定是否可以在第二 AP的传 输机会窗内同时竞争接入信息, 在确定结果为可以时, 根据两个 AP的传输机 会窗的时间长度和先后顺序, 在两个 AP的传输机会窗内竞争接入信息, 同样 在保证公平性原则的基础上, 可以允许不同 BSS共享信道。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种信道接入方法的流程图;
图 2为本发明实施例提供的另一种信道接入方法的流程图;
图 3为本发明实施例提供的又一种信道接入方法的流程图;
图 4为本发明实施例提供的又一种信道接入方法的流程图;
图 5为本发明实施例提供的又一种信道接入方法的流程图;
图 6为本发明实施例提供的一种信道接入控制单元的结构示意图; 图 7为本发明实施例提供的另一种信道接入控制单元的结构示意图; 图 8为本发明实施例提供的一种 AP的结构示意图;
图 9为本发明实施例提供的另一种 AP的结构示意图;
图 10为本发明实施例提供的一种信道接入装置的结构示意图; 图 1 1为本发明实施例提供的另一种信道接入装置的
图 12为本发明实施例提供的又一种信道接入装置的
图 13为本发明实施例提供的一种 STA的结构 ^
图 14为本发明实施例提供的另一种 STA的结木
图 15为本发明实施例提供的又一种信道接入装置的
图 16为本发明实施例提供的又一种信道接入装置的
具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 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。
在本发明实施例中, 首先提出了无线局域网中 BSS优先级划分的概念以 及 BSS优先级的标识和设置方法。 BSS享有更高的优先级意味着属于该 BSS 的设备会比其他 BSS的设备有优先权使用或者占用某些频谱资源。 之后, 基 于 BSS优先级, 本发明实施例还提出了信道接入方法。 下面首先对 BSS优先 级有关的信息进行介绍。
BSS优先级是针对各 BSS设定优先级。 不同 BSS的优先级有高有低。 同 一 BSS的优先级也会因为该 BSS所执行的策略的不同而不同。 举例说明: 在 考虑接入控制的时候, 某 BSS的优先级可能是最高的, 也就是说该 BSS中的 各种设备可以优先使用信道; 但在考虑信道切换的时候, 该 BSS优先权可以 是最低的, 也就是说该 BSS有可能会被更高优先级的 BSS要求切换信道。 这 样就可以根据 BSS所要执行的策略更灵活的设置优先级。
一个 BSS的优先级可以由一个或者一组数据来标识。例如,考虑一个 BSS 中的关联用户数、 该 BSS中的活跃用户数或指定的与信道选择相关的数据等 来标识该 BSS的优先级。 又例如, 一个 BSS中的关联用户数、 该 BSS中的活 跃用户数可以同时用来决定该 BSS的优先级。 举例说明, 活跃用户数目越多 则 BSS优先级越高, 活跃用户数目一样时, 关联用户数目越多则 BSS优先级 越高。 除上述举例之外, BSS的优先级还可由该 BSS中的关联用户数、 该 BSS 中的活跃用户数和指定的与信道选择相关的数据同时标识。 另外, 除了关联 用户数、 活跃用户数和指定的与信道选择相关的数据之外, 其他数据也可以 用于标识 BSS优先级。
BSS的优先级由该 BSS中的 AP和站点 (Station, 简称为 STA)承载。 也 就是说, 高优先级 BSS中的 AP和 STA的优先级高于低优先级 BSS中的 AP和 STA。 BSS优先级是 BSS的属性, 由 BSS内的各种设备承载, 当某一设备脱离 当前 BSS后, 则失去相应优先级。
基于上述定义, 本发明实施例提供一种小区优先级设置方法, 包括:
AC获取设定优先级所需的各 BSS的参数或设定优先级所需的策略; AC根 据获取的各 BSS的参数或所述策略, 为各 BSS设定优先级。
该设置小区优先级的方法属于中心控制方式。具体来说, 由 AC基于预先 设定的参数为各 BSS设置优先级,或者由 AC基于预先设定的策略为各 BSS设 置优先级。 所述设置优先级所需的参数可以根据应用场景的不同而不同, 例 如可以包括关联 STA数目、 BSS下行业务对应的缓存队列的长度、活跃的 STA 数目等。 所述设置优先级所需的策略可以是根据各 BSS中 STA的付费信息或 各 BSS所属运营商等信息设定的。
其中, AC为各 BSS设定优先级之后,可以将各 BSS的优先级发送给各 BSS 中的 AP, 以使各 AP获知所在 BSS的优先级, 进而基于 BSS优先级进行相应 操作。
基于上述定义, 本发明实施例再提供一种小区优先级设置方法, 包括:
AP获取邻居 BSS的优先级和邻居 BSS设定优先级使用的参数的取值; 然后, AP根据本地所述参数的取值、 所述邻居 BSS的优先级和邻居 BSS设定优先级 使用的参数的取值, 确定该 AP所在 BSS的优先级。
该设置小区优先级的方法属于分布式方式。具体的,待设置优先级的 BSS 中的 AP通过参考邻居 BSS的优先级, 以及邻居 BSS设置优先级使用的相关参 数的取值和本地相同参数的取值, 设定自身所在 BSS的优先级。 可选的, AP 在获取邻居 BSS的优先级之前,可以发送优先级获取请求给 AC或邻居 BSS中 的 AP, 以请求邻居 BSS的优先级和邻居 BSS设定优先级使用的参数的取值, 然后接收 AC或邻居 BSS中的 AP返回的回复信息, 从中获取邻居 BSS的优先 级和设定优先级使用的参数的取值。 对 BSS中的 STA可以采用以下方式获知所在 BSS的优先级。
主动获取方式: STA发送优先级请求消息给 AP。 该优先级请求消息可以 是一个新的命令, 或者是包含在控制帧、 管理帧或数据帧中的新的域。 例如, 该优先级请求消息可以夹带在关联请求或探测请求 (probe request ) 中。 该 优先级请求消息包含 BSS的 ID及其它相关参数等信息。 AP收到优先级请求 消息后, 将当前 BSS的优先级反馈给 STA。
被动获取方式: AP在信标 (beacon ) 帧、 管理帧、 控制帧或数据帧中广 播当前 BSS的优先级信息。 STA接收 AP广播的信标帧、 管理帧、 控制帧或数 据帧, 从中获取当前 BSS的优先级信息。
基于上述 BSS优先级, 本发明实施例还提供了一种信道接入方法, 如图
1所示, 所述方法包括:
101、 信道接入控制单元接收竞争接入同一信道的每个 AP上报的信息, 根据所述信息, 确定每个 AP用于竞争接入所述信道使用的传输机会窗。
102、 信道接入控制单元根据预设的共享信道策略, 确定每个 AP的传输 机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道。
103、 如果确定结果为允许, 则信道接入控制单元将允许其他 AP同时竞 争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP 和允许同时竞争接入所述信道的其他 AP, 以使所述传输机会窗对应的 AP所 在 BSS内的设备和允许同时竞争接入所述信道的其他 AP所在 BSS内的设备在 所述传输机会窗内同时竞争接入所述信道。
在本实施例中, 当 AP需要竞争接入信道时, 会向信道接入控制单元上报 各自的信息, 以便信道接入控制单元根据各个 AP的信息, 为每个 AP确定用 于竞争接入信道使用的传输机会窗, 从而保证各个 AP 竞争接入信道的公平 性。
在此说明, 所述信道接入控制单元可以是 AC, 或者可以设置于 AC中实 现, 或者可以是独立于 AC的控制单元等。
可选的, AP上报的信息可以包括 AP所在 BSS的优先级、 AP遵从的商业 协议的代码、 AP关联的 STA的数目和 AP的负载中的至少一个, 但不限于此。
可选的, 信道接入控制单元根据各个 AP上报的信息, 确定每个 AP用于 竞争接入信道使用的传输机会窗, 主要是指: 根据各 AP上报的信息, 确定各 AP的传输机会窗的时间长度和先后顺序。 具体的, 信道接入控制单元可以根 据 AP上报的信息, 确定每个 AP用于竞争接入信道使用的传输机会窗的起始 时间和结束时间; 或者, 信道接入控制单元可以根据 AP上报的信息, 确定每 个 AP用于竞争接入信道使用的传输机会窗的起始时间和时间长度。其中, 一 旦确定了各 AP的传输机会窗的起始时间和结束时间, 或一旦确定了各 AP的 传输机会窗的起始时间和时间长度等信息,也就意味着确定了各 AP的传输机 会窗的时间长度和先后顺序。 例如, 信道接入控制单元可以根据各 AP 所在 BSS的优先级的大小顺序, 确定各 AP的传输机会窗的先后顺序, 例如 AP所 在 BSS的优先级越高, 则该 AP的传输机会窗就越靠前, 也就意味着该传输机 会窗的起始时间和结束时间更靠前。 又例如, 信道接入控制单元可以根据各 AP遵从的商业协议代码, 确定各 AP的传输机会窗的先后顺序, 例如, 信道 接入控制单元可以将遵从相同商业协议代码的 AP 的传输机会窗安排在相邻 位置, 等等。
其中, 各 AP会在各自的传输机会窗内竞争接入信道, 各 AP的传输机会 窗在一定程度上表征了各 AP 竞争接入所述信道的优先级。 本实施例通过各 AP的传输机会窗的时间长度以及各 AP的传输机会窗之间的先后顺序等, 体 现各 AP之间的公平性。
可选的, 每个 AP的传输机会窗的时间长度可以相同, 也可以不相同。举 例说明, AP所在 BSS的优先级越高, 则 AP的传输机会窗的时间长度越大, 或者 AP关联的 STA数目越多, 则 AP的传输机会窗的时间长度越大。
信道接入控制单元确定出竞争接入同一信道的每个 AP的传输机会窗后, 可以根据预设的共享信道策略, 确定每个 AP 的传输机会窗内是否允许其他 AP与该 AP同时竞争接入信道。
在本实施例中,共享信道策略是指用于判断在一个 AP的传输机会窗内是 否允许其他 AP同时竞争接入信道的策略,例如可以包括 BSS优先级共享策略 和商业协议共享策略。 其中, BSS优先级共享策略是指基于各 AP所在 BSS的 优先级, 确定一个 AP的传输机会窗内是否允许其他 AP同时竞争接入信道的 策略。 而商业协议共享策略是指依据各 AP所遵从的商业协议, 确定一个 AP 的传输机会窗内是否其他 AP同时竞争接入信道的策略。
在本实施例中, 预先设定使用的共享信道策略。 该共享信道策略允许根 据实际应用场景进行适应性设置, 并且允许进行修改。 基于上述涉及的共享 信道策略, 信道接入控制单元根据预设的共享信道策略, 确定每个 AP的传输 机会窗内是否允许其他 AP与该 AP同时竞争接入信道的过程可以包括:
如果预设的共享信道策略为 BSS优先级共享策略, 则信道接入控制单元 根据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输机会窗内是否允 许其他 AP与所述 AP同时竞争接入所述信道;
如果预设的共享信道策略为商业协议共享策略, 则信道接入控制单元根 据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允许其 他 AP与所述 AP同时竞争接入所述信道。
在一可选实施方式中,信道接入控制单元根据每个 AP所在 BSS的优先级 的大小,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接 入信道的方式, 包括: 信道接入控制单元根据每个 AP所在 BSS的优先级, 确 定在每个 AP的传输机会窗内允许所在 BSS的优先级比所述 AP所在 BSS的优 先级高的 AP或所在 BSS的优先级和所述 AP所在 BSS的优先级相同的 AP同时 竞争接入所述信道。 如果从所在 BSS的优先级最高和非最高的角度来看, 该 实施方式实际上是指:信道接入控制单元确定所在 BSS的优先级最高的 AP可 以在其它任意 AP的传输时间窗内竞争接入信道,而所在 BSS的优先级非最高 的 AP只能在与它具有相同 BSS优先级的 AP的传输机会窗内以及比它所在 BSS 优先级还低的 AP的传输机会窗内竞争接入信道。
在此说明, 信道接入控制单元根据每个 AP所在 BSS的优先级的大小, 确 定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入信道的方 式并不限于上述, 还可以是其它方式。
进一步可选的,信道接入控制单元可以在根据每个 AP所在 BSS的优先级 的大小,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接 入信道之前, 预先知道每个 AP所在 BSS的优先级。 例如, 在信道接入控制单 元作为 AC为各 AP集中设置各自所在 BSS的优先级的场景中, 信道接入控制 单元就会预先知道各 AP所在 BSS的优先级。 又例如, 在各 AP上报的信息中 包括各 AP所在 BSS 的优先级的情况下, 信道接入控制单元也会预先知道各 AP所在 BSS的优先级。
进一步可选的,信道接入控制单元可能在根据每个 AP所在 BSS的优先级 的大小,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接 入信道之前, 不知道每个 AP所在 BSS的优先级。 例如, 在各 AP所在 BSS的 优先级是由各 AP采用分布式方式设置的场景中,信道接入控制单元可能不知 道各 AP所在 BSS的优先级。 基于此, 信道接入控制单元可能在根据每个 AP 所在 BSS的优先级的大小, 确定每个 AP的传输机会窗内是否允许其他 AP与 所述 AP同时竞争接入信道之前, 可以先获取每个 AP所在 BSS的优先级。 例 如, 信道接入控制单元可以向 AP发送优先级获取请求, 以请求获取 AP所在 BSS的优先级, 然后接收 AP针对优先级获取请求返回的该 AP所在 BSS的优 先级。 又例如, 信道接入控制单元可以接收 AP周期性发送的信标帧, 从所接 收的信标帧中获取 AP所在 BSS的优先级, 等等。
在一可选实施方式中,信道接入控制单元根据每个 AP遵从的商业协议的 代码,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入 信道的方式, 可以包括:
信道接入控制单元根据每个 AP遵从的商业协议的代码,确定遵从的商业 协议的代码相同的 AP可以在彼此的传输机会窗内同时竞争接入所述信道。
在此说明, 信道接入控制单元根据每个 AP遵从的商业协议的代码, 确定 每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入信道的方式 并不限于上述, 还可以是其它方式。
进一步可选的, 信道接入控制单元在根据每个 AP 遵从的商业协议的代 码,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入信 道之前, 可能预先知道每个 AP遵从的商业协议的代码。 例如, 在每个 AP上 报的信息包括每个 AP遵从的商业协议的代码的情况下,信道接入控制单元会 预先知道每个 AP遵从的商业协议的代码。
进一步可选的, 信道接入控制单元在根据每个 AP 遵从的商业协议的代 码,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入信 道之前, 可能不知道每个 AP遵从的商业协议的代码。 例如, 在每个 AP上报 的信息不包括每个 AP遵从的商业协议的代码的情况下,则信道接入控制单元 在根据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允 许其他 AP与所述 AP同时竞争接入信道之前,需要先获取每个 AP遵从的商业 协议的代码。例如,信道接入控制单元可以向 AP发送商业协议代码获取请求, 以请求获取 AP遵从的商业协议的代码, 然后接收 AP针对商业协议代码获取 请求返回的该 AP遵从的商业协议的代码。又例如, 信道接入控制单元可以接 收 AP周期性发送的信标帧, 从所接收的信标帧中获取 AP遵从的商业协议的 代码, 等等。
在信道接入控制单元确定出允许其他 AP 同时竞争接入信道的传输机会 窗后, 可以向该传输机会窗对应的 AP和允许同时竞争接入信道的其他 AP发 送该传输机会窗的指示信息, 以指示该传输机会窗对应的 AP所在 BSS内的设 备和允许同时竞争接入信道的其他 AP所在 BSS内的设备在该传输机会窗内同 时竞争接入信道。这里所说的 AP所在 BSS内的设备包括该 BSS内的 AP和 STA。
在一可选实施方式中,信道接入控制单元将允许其他 AP同时竞争接入所 述信道的传输机会窗的指示信息,发送给所述传输机会窗对应的 AP和允许同 时竞争接入所述信道的其他 AP , 包括:
信道接入控制单元将允许其他 AP 同时竞争接入所述信道的传输机会窗 的起始时间和结束时间,发送给所述传输机会窗对应的 AP和允许同时竞争接 入所述信道的其他 AP ; 或者
所述信道接入控制单元将允许其他 AP 同时竞争接入所述信道的传输机会窗 的起始时间和时间长度,发送给所述传输机会窗对应的 AP和允许同时竞争接入所 述信道的其他 AP。
对于 AP来说, 会接收信道接入控制单元发送的指示该 AP竞争接入信道 使用的传输机会窗的指示信息, 之后, 会在所述指示信息指示的传输机会窗 内竞争接入信道。
进一步可选的,信道接入控制单元除了将允许其他 AP同时竞争接入所述 信道的传输机会窗的指示信息,发送给所述传输机会窗对应的 AP和允许同时 竞争接入所述信道的其他 AP之外, 还会向每个 AP发送起始帧发送时刻和结 束帧发送时刻, 以使 AP在所述起始帧发送时刻向所述 AP所在 BSS内的 STA 发送第一起始帧,并在所述结束帧发送向所述 AP所在 BSS内的 STA发送结束 帧, 以指示所述 AP所在 BSS内的 STA在所述第一起始帧和所述结束帧限定的 时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时间 不超出所述 AP的传输机会窗。 对 AP来说, 会接收信道接入控制单元发送的 起始帧发送时刻和结束帧发送时刻,并会在起始帧发送时刻向 AP所在 BSS内 的 STA发送第一起始帧,在结束帧发送时刻向 AP所在 BSS内的 STA发送结束 帧, 以指示 STA在第一起始帧和结束帧限定的时间内竞争接入信道。 对 STA 来说, 自接收到其所关联的 AP发送的第一起始帧开始, 竞争接入信道, 并在 接收到其所关联的 AP发送的结束帧时, 停止竞争接入信道。在此说明, 第一 起始帧和结束帧可以是新定义的管理帧, 也可以是信标 (Beacon ) 帧。
在此说明, 上述以及本发明其它地方涉及的 "某时间不超出某传输机会 窗"是指该某时间位于某传输机会窗内或者某时间正好就是该某传输机会窗。
可选的, 信道接入控制单元可以在同一过程中, 将允许其他 AP同时竞争 接入信道的传输机会窗的指示信息、 发送起始帧发送时刻和结束帧发送时刻 同时发送给 AP。
或者
信道接入控制单元除了将允许其他 AP 同时竞争接入所述信道的传输机 会窗的指示信息,发送给所述传输机会窗对应的 AP和允许同时竞争接入所述 信道的其他 AP之外,还会向每个 AP发送起始帧发送时刻和指示每个 AP所在 BSS内的 STA竞争接入所述信道的时间长度, 以使所述 AP在所述起始帧发送 时刻向所述 AP所在 BSS内的站点 STA发送第二起始帧,并在所述第二起始帧 中携带指示所述 STA竞争接入所述信道的时间长度, 以指示所述 AP所在 BSS 内的 STA自所述第二起始帧开始, 在指示所述 STA竞争接入所述信道的时间 长度内竞争接入所述信道; 其中, 指示所述 STA竞争接入所述信道的时间长 度不超出所述 AP的传输机会窗。 对 AP来说, 会接收信道接入控制单元发送 的起始帧发送时刻和指示的 STA竞争信道接入的时间长度, 并会在起始帧发 送时刻向 AP所在 BSS内的 STA发送第二起始帧,并在第二起始帧中携带信道 接入控制单元指示的时间长度, 以指示 STA 自接收到第二起始帧开始, 在信 道接入控制单元指示的时间长度内竞争接入信道。 对 STA来说, 自接收到其 所关联的 AP发送的第二起始帧开始, 竞争接入信道, 并在信道接入控制单元 指示的时间长度结束, 停止竞争接入信道。 在此说明, 第二起始帧可以是新 定义的管理帧, 也可以是信标帧。
可选的, 信道接入控制单元可以在同一过程中, 将允许其他 AP同时竞争 接入信道的传输机会窗的指示信息、 发送起始帧发送时刻和指示 AP所在 BSS 内的 STA竞争接入所述信道的时间长度同时发送给 AP。 进一步可选的, 信道接入控制单元根据预设的共享信道策略, 确定每个
AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道, 对某 些 AP可能确定出其传输机会窗允许其他 AP同时竞争接入信道, 对另一些 AP 可能确定出其传输机会窗不允许其他 AP同时竞争接入信道。
基于此, 当确定出某个 AP的传输机会窗内不允许其他 AP同时竞争接入 信道时,信道接入控制单元将确定出的不允许其他 AP同时竞争接入信道的传 输机会窗的指示信息发送给该传输机会窗对应的 AP, 以使该传输机会窗对应 的 AP所在 BSS内的设备在该传输机会窗内竞争接入信道。
其中,信道接入控制单元将确定出的不允许其他 AP同时竞争接入信道的 传输机会窗的指示信息发送给该传输机会窗对应的 AP, 包括:
信道接入控制单元将确定出的不允许其他 AP 同时竞争接入信道的传输 机会窗的起始时间和结束时间, 发送给该传输机会窗对应的 AP; 或者
信道接入控制单元将确定出的不允许其他 AP 同时竞争接入信道的传输 机会窗的起始时间和时间长度, 发送给该传输机会窗对应的 AP。
由上述可见, 在本实施例提供的信道接入方法中, 信道接入控制单元根 据竞争接入同一信道的各 AP的信息确定各 AP竞争接入信道使用的传输机会 窗, 而后根据共享信道策略确定每个 AP的传输机会窗内是否允许其他 AP同 时竞争接入信道, 在确定结果为允许时, 将允许其他 AP同时竞争接入信道的 传输机会窗的指示信息发送给该传输机会窗的 AP 和允许同时竞争接入信道 的其他 AP, 使得这些 AP所在 BSS内的设备可以在该传输机会窗内同时竞争 接入所述信道, 可以在保证公平性原则的基础上, 允许不同 BSS共享信道。
图 2为本发明实施例提供的另一种信道接入方法的流程图。如图 2所示, 所述方法包括:
201、 当需要竞争接入信道时, AP 向信道接入控制单元上报信息, 以使 所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确定所 有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输机会 窗。
202、 AP接收所述信道接入控制单元发送的用于指示所述 AP竞争接入所 述信道可以使用的传输机会窗的指示信息。
203、 AP在所述指示信息指示的传输机会窗内竞争接入所述信道。 本实施例与图 1所示实施例相对应, 是从 AP的角度进行的描述。
在本实施例中, 当需要竞争接入信道时, AP向信道接入控制单元上报信 息, 以使信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息, 确 定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输 机会窗。
可选的, AP上报的信息可以包括 AP所在 BSS的优先级、 AP遵从的商业 协议的代码、 AP关联的 STA的数目和 AP的负载中的至少一个, 但不限于此。
关于信道接入控制单元如何根据所有竞争接入所述信道的 AP 上报的信 息, 确定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用 的传输机会窗, 以及如何确定每个 AP的传输机会窗内是否允许其他 AP同时 竞争接入信道的描述, 可参见图 1所示实施例, 在此不再赘述。
当信道接入控制单元确定出 AP竞争接入信道可以使用的传输机会窗后, 向 AP发送所述传输机会窗的指示信息, 以指示所述传输机会窗。 在此说明, AP竞争信道可以使用的传输机会窗包括 AP 自己的传输机会窗, 也可以包括 允许该 AP同时竞争接入信道的其他 AP的传输机会窗。
可选的, AP接收信道接入控制单元发送的用于指示该 AP竞争接入信道 可以使用的传输机会窗的指示信息的方式, 包括:
AP 接收信道接入控制单元发送的所述传输机会窗的起始时间和结束时 间; 或者
AP 接收信道接入控制单元发送的所述传输机会窗的起始时间和时间长 度。
AP接收到信道接入控制单元发送的用于指示该 AP竞争接入信道可以使 用的传输机会窗的指示信息之后, 一方面可以在该指示信息指示的传输机会 窗内竞争接入信道。 另外, 考虑到 AP竞争接入信道主要是为了与该 AP所在 BSS内的 STA进行通信, 因此, AP在所述指示信息指示的传输机会窗内竞争 接入所述信道之后,还会在所述指示信息指示的传输机会窗内指示该 AP所在 BSS内的 STA竞争接入信道。
在一可选实施方式中, AP在所述指示信息指示的传输机会窗内指示该 AP 所在 BSS内的站点 STA竞争接入所述信道的过程, 可以包括:
AP在信道接入控制单元指示的起始帧发送时刻, 向该 AP所在 BSS内的 STA发送指示所述 STA开始竞争接入所述信道的第一起始帧, 并在信道接入 控制单元指示的结束帧发送时刻, 向所述 STA发送指示所述 STA停止竞争接 入所述信道的结束帧, 以指示所述 STA在所述第一起始帧和所述结束帧限定 的时间内竞争接入所述信道。 其中, 所述第一起始帧和所述结束帧限定的时 间不超出所述指示信息指示的传输机会窗。 对 STA来说, 自接收到其所关联 的 AP发送的第一起始帧开始, 竞争接入信道, 并在接收到其所关联的 AP发 送的结束帧时, 停止竞争接入信道。 在此说明, 第一起始帧和结束帧可以是 新定义的管理帧, 或者也可以是信标帧。
基于上述, AP在向该 AP所在 BSS内的 STA发送第一起始帧之前, 还会 接收信道接入控制单元发送的所述起始帧发送时刻和所述结束帧发送时刻。
在一可选实施方式中, AP在所述指示信息指示的传输机会窗内指示该 AP 所在 BSS内的站点 STA竞争接入所述信道的过程, 可以包括:
AP在信道接入控制单元指示的起始帧发送时刻, 向所述 AP所在 BSS内 的 STA发送用于指示所述 STA开始竞争接入所述信道的第二起始帧, 所述第 二起始帧携带有所述信道接入控制单元指示的所述 STA竞争接入所述信道的 时间长度, 以指示所述 STA 自接收到所述第二起始帧开始, 在所述信道接入 控制单元指示的时间长度内竞争接入所述信道。 其中, 所述信道接入控制单 元指示的时间长度不超出所述指示信息指示的传输机会窗。 对 STA来说, 自 接收到其所关联的 AP发送的第二起始帧开始, 竞争接入信道, 并在信道接入 控制单元指示的时间长度结束, 停止竞争接入信道。 在此说明, 第二起始帧 可以是新定义的管理帧, 或者也可以是信标帧。
基于上述, AP在向该 AP所在 BSS内的 STA发送第二起始帧之前, 还包 括: 接收信道接入控制单元发送的所述起始帧发送时刻和指示所述 STA竞争 接入所述信道的时间长度。
由上述可见, 在本实施例提供的信道接入方法中, AP与信道接入控制单 元相配合, 在信道接入控制单元发送的指示信息所指示的传输机会窗内竞争 接入所述信道, 可以在保证公平性原则的基础上, 允许不同 BSS共享信道。
本发明以上实施例提供了一种由信道接入控制单元集中控制各 AP 竞争 接入信道的方法, 本发明以下实施例将提供一种分布式的信道接入方法, 同 样可以在保证公平性原则的基础上, 实现不同 BSS共享信道。 图 3为本发明实施例提供的又一种信道接入方法的流程图。如图 3所示, 所述方法包括:
301、 第一 AP获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一 AP的信息和所述第二 AP的信息,确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会窗的时间长度和先后顺序。
302、 第一 AP根据所述第一 AP支持的共享信道策略和所述第二 AP支持 的共享信道策略, 确定所述第一 AP和所述第二 AP共同使用的目标共享信道 策略。
303、 第一 AP根据所述目标共享信道策略, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道。
304、 当确定可以在所述第二 AP的传输机会窗内同时竞争接入所述信道 时,第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先 后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞争接 入所述信道。
首先说明, 本实施例中涉及的第二 AP可以是任何一个与第一 AP竞争接 入同一信道的 AP。 也就是说, 竞争接入同一信道的两个 AP之间均可以采用 本实施例提供的方法来竞争接入所述信道。
首先, 第一 AP获取第二 AP的信息。 例如, 第一 AP可以接收第二 AP发 送的信标帧或第二 AP广播的携带有相关信息的广播帧,从信标帧或广播帧中 获取第二 AP的信息。
可选的, 第二 AP的信息可以包括: 第二 AP所在 BSS的优先级、 第二 AP 遵从的商业协议的代码、 第二 AP关联的 STA的数目和第二 AP的负载中的至 少一个, 但不限于此。 相应的, 第一 AP的信息可以包括: 第一 AP所在 BSS 的优先级、 第一 AP遵从的商业协议的代码、 第一 AP关联的 STA的数目和第 一 AP的负载中的至少一个, 但不限于此。
可选的, 如果第一 AP和第二 AP在彼此的通信范围之内, 则第一 AP可以 直接接收第二 AP发送的第二 AP的信息。 如果第一 AP和第二 AP不在彼此的 通信范围之内,则第一 AP可以接收同时处于第一 AP和第二 AP的覆盖范围之 内的 STA发送的第二 AP的信息。 具体的, 第二 AP的信息先到达 STA, 再由 STA转发给第一 AP。 获取到第二 AP的信息之后, 第一 AP可以根据第一 AP的信息和第二 AP 的信息, 确定第一 AP和第二 AP竞争接入所述信道分别使用的传输机会窗的 时间长度和先后顺序。 其中, 第一 AP和第二 AP会在各自的传输机会窗内竞 争接入信道, 且第一 AP和第二 AP的传输机会窗在一定程度上表征了两者竞 争接入所述信道的优先级。本实施例通过各 AP的传输机会窗的时间长度以及 各 AP的传输机会窗之间的先后顺序等, 体现各 AP之间的公平性。
例如,第一 AP可以根据第一 AP和第二 AP所在 BSS的优先级的大小顺序, 确定各两个 AP的传输机会窗的先后顺序, 例如 AP所在 BSS的优先级越高, 则该 AP的传输机会窗就越靠前。 又例如, 第一 AP可以根据第一 AP和第二 AP遵从的商业协议代码, 确定两个 AP的传输机会窗的先后顺序, 等等。
可选的, 第一 AP和第二 AP的传输机会窗的时间长度可以相同, 也可以 不相同。 举例说明, AP所在 BSS的优先级越高, 则 AP的传输机会窗的时间 长度越大, 或者 AP关联的 STA数目越多, 则 AP的传输机会窗的时间长度越 大。
在本实施例中,第一 AP确定出第一 AP和第二 AP的传输机会窗的时间长 度和先后顺序后, 可以根据第一 AP支持的共享信道策略和第二 AP支持的共 享信道策略, 确定目标共享信道策略。 在本实施例中, 目标共享信道策略是 第一 AP和第二 AP均支持的一个共享信道策略, 目的是供第一 AP和第二 AP 确定是否允许彼此在各自的传输机会窗内同时竞争接入信道。
在本实施例中,共享信道策略是指用于判断在一个 AP的传输机会窗内是 否允许其他 AP同时竞争接入信道的策略,例如可以包括 BSS优先级共享策略 和商业协议共享策略。 其中, BSS优先级共享策略是指基于各 AP所在 BSS的 优先级, 确定一个 AP的传输机会窗内是否允许其他 AP同时竞争接入信道的 策略。 而商业协议共享策略是指依据各 AP所遵从的商业协议, 确定一个 AP 的传输机会窗内是否其他 AP同时竞争接入信道的策略。
在本实施例中,第一 AP可以支持 BSS优先级共享策略和商业协议共享策 略中的至少一个,第二 AP也可以支持 BSS优先级共享策略和商业协议共享策 略中的至少一个。具体的, 第一 AP可以从第一 AP和第二 AP都支持的共享信 道策略中确定一个作为目标共享信道策略。 例如, 所述目标共享信道策略可 以是 BSS优先级共享策略, 或者可以是商业协议共享策略。 在此说明, 不同 AP之间可以采用不同的目标共享信道策略。 可选的,第一 AP在根据第一 AP支持的共享信道策略和第二 AP支持的共 享信道策略, 确定目标共享信道策略之前, 已经预先知道第二 AP支持的共享 信道策略。 例如, 在第二 AP的信息包括第二 AP支持的共享信道策略信息的 情况下。
可选的,第一 AP在根据第一 AP支持的共享信道策略和第二 AP支持的共 享信道策略, 确定目标共享信道策略之前, 可能不知道第二 AP支持的共享信 道策略。 例如, 在第二 AP的信息不包括第二 AP支持的共享信道策略信息的 情况下,则第一 AP在根据第一 AP支持的共享信道策略和第二 AP支持的共享 信道策略, 确定目标共享信道策略之前, 需要先获取第二 AP支持的共享信道 策略。例如, 第一 AP可以在根据第一 AP支持的共享信道策略和第二 AP支持 的共享信道策略, 确定目标共享信道策略之前, 接收第二 AP发送的广播帧, 所述广播帧包括第二 AP支持的共享信道策略, 但并不限于此。
当第一 AP确定出目标共享信道策略之后, 可以根据目标共享信道策略, 确定是否可以在第二 AP的传输机会窗内同时竞争接入信道。
基于上述涉及的目标共享信道策略, 第一 AP根据目标共享信道策略, 确 定是否可以在第二 AP的传输机会窗内同时竞争接入信道的过程可以包括: 如果目标共享信道策略为 BSS优先级共享策略,则第一 AP可以根据所述 第一 AP所在 BSS的优先级和第二 AP所在 BSS的优先级的大小, 确定是否可 以在第二 AP的传输机会窗内同时竞争接入信道;
如果目标共享信道策略为商业协议共享策略, 则第一 AP根据第一 AP遵 从的商业协议的代码和第二 AP遵从的商业协议的代码,确定是否可以在第二 AP的传输机会窗内同时竞争接入信道。
在一可选实施方式中, 第一 AP根据第一 AP所在 BSS的优先级和第二 AP 所在 BSS的优先级的大小,确定是否可以在第二 AP的传输机会窗内同时竞争 接入信道的方式, 可以包括: 如果第二 AP所在 BSS的优先级低于或等于第一 AP所在 BSS的优先级低, 则第一 AP确定可以在第二 AP的传输机会窗内同时 竞争接入信道。
在此说明,第一 AP根据第一 AP所在 BSS的优先级和第二 AP所在 BSS的 优先级的大小,确定是否可以在第二 AP的传输机会窗内同时竞争接入信道的 方式并不限于上述, 还可以是其它方式。
进一步可选的, 第一 AP可以在根据第一 AP所在 BSS的优先级和第二 AP 所在 BSS的优先级的大小,确定是否可以在第二 AP的传输机会窗内同时竞争 接入信道之前, 预先知道第二 AP所在 BSS的优先级。 例如, 在第二 AP的信 息中包括第二 AP所在 BSS的优先级的情况下,第一 AP会预先知道第二 AP所 在 BSS的优先级。又例如, 在各 AP采用分布式方式确定各自所在 BSS的优先 级的场景中, 第一 AP也会预先知道第二 AP的优先级。
进一步可选的, 第一 AP可能在根据第一 AP所在 BSS的优先级和第二 AP 所在 BSS的优先级的大小,确定是否可以在第二 AP的传输机会窗内同时竞争 接入信道之前, 不知道第二 AP所在 BSS的优先级。 例如, 在第二 AP的信息 中不包括第二 AP所在 BSS的优先级的情况下,第一 AP会预先知道第二 AP所 在 BSS的优先级。 基于此, 第一 AP可能在根据第一 AP所在 BSS的优先级和 第二 AP所在 BSS的优先级的大小, 确定是否可以在第二 AP的传输机会窗内 同时竞争接入信道之前, 可以先获取第二 AP所在 BSS的优先级。例如, 第一 AP可以向第二 AP发送优先级获取请求, 以请求获取第二 AP所在 BSS的优先 级, 然后接收第二 AP针对优先级获取请求返回的该第二 AP所在 BSS的优先 级。 又例如, 第一 AP可以接收第二 AP周期性发送的信标帧, 从所接收的信 标帧中获取第二 AP所在 BSS的优先级, 等等。
在一可选实施方式中, 第一 AP根据第一 AP遵从的商业协议的代码和第 二 AP遵从的商业协议的代码, 确定是否可以在第二 AP的传输机会窗内同时 竞争接入信道的方式, 可以包括:
如果第一 AP遵从的商业协议的代码和第二 AP遵从的商业协议的代码相 同, 则第一 AP确定可以在第二 AP的传输机会窗内同时竞争接入信道。
在此说明,第一 AP根据第一 AP遵从的商业协议的代码和第二 AP遵从的 商业协议的代码,确定是否可以在第二 AP的传输机会窗内同时竞争接入信道 的方式并不限于上述, 还可以是其它方式。
进一步可选的, 第一 AP在根据第一 AP遵从的商业协议的代码和第二 AP 遵从的商业协议的代码,确定是否可以在第二 AP的传输机会窗内同时竞争接 入信道之前, 可能预先知道第二 AP遵从的商业协议的代码。 例如, 在第二 AP的信息包括第二 AP遵从的商业协议的代码的情况下, 第一 AP会预先知道 第二 AP遵从的商业协议的代码。
进一步可选的, 第一 AP在根据第一 AP遵从的商业协议的代码和第二 AP 遵从的商业协议的代码,确定是否可以在第二 AP的传输机会窗内同时竞争接 入信道之前, 可能不知道第二 AP遵从的商业协议的代码。 例如, 在第二 AP 的信息不包括第二 AP遵从的商业协议的代码的情况下, 则第一 AP在根据第 一 AP遵从的商业协议的代码和第二 AP遵从的商业协议的代码, 确定是否可 以在第二 AP的传输机会窗内同时竞争接入信道之前, 可以先获取第二 AP遵 从的商业协议的代码。 例如, 第一 AP可以向第二 AP发送商业协议代码获取 请求, 以请求获取第二 AP遵从的商业协议的代码, 然后接收第二 AP针对商 业协议代码获取请求返回的该第二 AP遵从的商业协议的代码。又例如, 第一 AP可以接收第二 AP周期性发送的信标帧, 从所接收的信标帧中获取第二 AP 遵从的商业协议的代码, 等等。
在第一 AP确定出可以在第二 AP的传输机会窗内同时竞争接入信道之后, 可以根据第一 AP的和第二 AP的传输机会窗的时间长度和先后顺序, 在第一 AP的传输机会窗和第二 AP的传输机会窗内竞争接入信道。
可选的,第一 AP确定第一 AP的和第二 AP的传输机会窗的时间长度和先 后顺序, 可以是确定第一 AP的传输机会窗的起始时间和结束时间, 以及第二 AP的传输机会窗的起始时间和结束时间; 或者可以是确定第一 AP的传输机 会窗的起始时间和时间长度, 以及第二 AP的传输机会窗的起始时间和时间长 度。 其中, 一旦确定了第一 AP的和第二 AP的传输机会窗的起始时间和结束 时间, 或者一旦确定了第一 AP的和第二 AP的传输机会窗的起始时间和结束 时间, 也就意味着确定了第一 AP的和第二 AP的传输机会窗的时间长度和先 后顺序。在该情况下, 第一 AP根据第一 AP的和第二 AP的传输机会窗的时间 长度和先后顺序, 在第一 AP的传输机会窗和第二 AP的传输机会窗内竞争接 入信道, 可以包括: 第一 AP可以根据第一 AP的和第二 AP的传输机会窗的时 间长度和先后顺序,分别确定第一 AP的传输机会窗和第二 AP的传输机会窗; 然后, 第一 AP按照第一 AP的和第二 AP的传输机会窗的先后顺序, 依次在第 一 AP的和第二 AP的传输机会窗内竞争接入信道。
可选的,第一 AP确定第一 AP的和第二 AP的传输机会窗的时间长度和先 后顺序, 可以是仅确定第一 AP的传输机会窗的时间长度、 第二 AP的传输机 会窗的时间长度、 以及第一 AP和第二 AP的传输机会窗被执行的先后顺序, 而没有确定传输机会窗的具体起始时间和结束时间。在该情况下, 第一 AP根 据第一 AP的和第二 AP的传输机会窗的时间长度和先后顺序,在第一 AP的传 输机会窗和第二 AP的传输机会窗内竞争接入信道, 可以包括: 第一 AP可以 根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后顺序, 确 定所述第一 AP的传输机会窗, 并根据所述第二 AP的传输机会窗的时间长度 和所述第二 AP发送的用于指示所述第二 AP的传输机会窗开始的起始帧, 确 定所述第二 AP的传输机会窗,按照所述第一 AP的和所述第二 AP的传输机会 窗的先后顺序, 依次在所述第一 AP的和所述第二 AP的传输机会窗内竞争接 入所述信道。在该实施方式中, 第一 AP可以根据第一 AP的和第二 AP的传输 机会窗的先后顺序, 确定出第二 AP的传输机会窗大致出现的位置, 进一步根 据第二 AP发送的用于指示第二 AP的传输机会窗开始的起始帧确定第二 AP的 传输机会窗的起始点, 并根据第二 AP 的传输机会窗的时间长度, 确定第二 AP的传输机会窗的结束点。 可选的, 第一 AP还可以根据第二 AP发送的用于 指示第二 AP的传输机会窗结束的结束帧, 确定第二 AP的传输机会窗的结束 点。 进一步可选的, 第一 AP根据共享目标信道策略, 也可能确定出不可以在 第二 AP的传输机会窗内同时竞争接入信道,则第一 AP可以仅在第一 AP的传 输机会窗内竞争接入信道。
进一步可选的, 考虑到第一 AP竞争接入信道的目的是为了与第一 AP所 在 BSS内的 STA进行通信, 因此, 第一 AP除了在第一 AP的传输机会窗和第 二 AP的传输机会窗内竞争接入信道之外, 还会在第一 AP的传输机会窗内指 示第一 AP所在 BSS内的 STA竞争接入信道。
在一可选实施方式中,第一 AP在第一 AP的传输机会窗内指示第一 AP所 在 BSS内的 STA竞争接入信道的方式, 可以包括:
第一 AP在第一 AP的传输机会窗内分别向所述 STA发送起第一起始帧和 结束帧, 以指示所述 STA在所述第一起始帧和所述结束帧限定的时间内竞争 接入信道。对于 STA来说, 会自接收到其所关联的第一 AP发送的第一起始帧 开始, 竞争接入信道, 并在接收到其所关联的第一 AP发送的结束帧时, 停止 竞争接入信道。 在此说明, 第一起始帧和结束帧可以是新定义的管理帧, 也 可以是信标帧。 进一步说明, 如果在第一 AP的传输机会窗允许其他 AP (例如第二 AP ) 同时竞争接入信道, 则第一 AP 发送的第一起始帧和结束帧除了可以供第一 AP所在 BSS内的 STA竞争接入信道之外, 同样可以供其他 AP所在 BSS内的 STA竞争接入信道。
在一可选实施方式中,第一 AP在第一 AP的传输机会窗内指示第一 AP所 在 BSS内的 STA竞争接入信道的方式, 可以包括:
第一 AP在第一 AP的传输机会窗内向 STA发送第二起始帧, 所述第二起 始帧携带有第一 AP指示所述 STA竞争接入信道的时间长度, 以指示所述 STA 自接收到第二起始帧开始,在第一 AP指示的时间长度内竞争接入信道;其中, 第一 AP指示的时间长度不超出第一 AP的传输机会窗。 对 STA来说, 自接收 到其所关联的第一 AP发送的第二起始帧开始, 竞争接入信道, 并在第一 AP 指示的时间长度结束, 停止竞争接入信道。 在此说明, 第二起始帧可以是新 定义的管理帧, 也可以是信标帧。
进一步说明, 如果在第一 AP的传输机会窗允许其他 AP (例如第二 AP ) 同时竞争接入信道,则第一 AP发送的第二起始帧除了可以供第一 AP所在 BSS 内的 STA竞争接入信道之外,同样可以供其他 AP所在 BSS内的 STA竞争接入 信道。
在第一 AP可以在第二 AP的传输机会窗内同时竞争接入信道的情况, 第 一 AP所在 BSS内的 STA可以在第二 AP的传输机会窗内同时竞争接入信道。 但是, 对 STA来说, 需要根据一定的信息确定可以在第二 AP的传输机会窗内 同时竞争接入信道。
在一可选实施方式中, 第一 AP可以将目标共享信道策略发送给第一 AP 所在 BSS内的 STA, 以使所述 STA根据所述目标共享信道策略确定是否可以 在所述第二 AP的传输机会窗内竞争接入信道。 对 STA来说, 接收第一 AP发 送的目标共享策略, 然后根据所述目标共享信道策略确定是否可以在所述第 二 AP的传输机会窗内竞争接入信道。 其中, STA根据所述目标共享信道策略 确定是否可以在所述第二 AP 的传输机会窗内竞争接入信道的过程, 与第一 AP根据所述目标共享信道策略确定是否可以在所述第二 AP的传输机会窗内 竞争接入信道的过程相同, 不再赘述。 当 STA确定可以在所述第二 AP的传输 机会窗内竞争接入信道时, 可以接收第二 AP在第二 AP的传输机会窗内发送 的指示信息, 根据第二 AP在第二 AP的传输机会窗内发送的指示信息在第二 AP的传输机会窗内竞争接入信道。
在一可选实施方式中, 第一 AP可以向第一 AP所在 BSS内的 STA发送信 道共享消息, 所述信道共享消息包括所述第二 AP的标识, 以指示所述 STA可 以在所述第二 AP的传输机会窗内竞争接入所述信道。对 STA来说, 接收第一 AP发送的信道共享消息, 然后根据所述信道共享消息是否包括第二 AP的标 识, 来确定是否可以在所述第二 AP的传输机会窗内竞争接入信道。 当 STA确 定可以在所述第二 AP的传输机会窗内竞争接入信道时, 可以接收第二 AP在 第二 AP的传输机会窗内发送的指示信息,根据第二 AP在第二 AP的传输机会 窗内发送的指示信息在第二 AP的传输机会窗内竞争接入信道。
例如, STA根据第二 AP在第二 AP的传输机会窗内发送的指示信息, 在 第二 AP的传输机会窗内竞争接入信道, 可以包括:
STA可以接收第二 AP在第二 AP的传输机会窗内发送的第三起始帧和第 三结束帧, 并在第三起始帧和第三结束帧限定的时间内竞争接入信道; 或者 STA可以接收第二 AP在第二 AP的传输机会窗内发送的第四起始帧, 在 第四起始帧携带的第二 AP指示的时间长度内竞争接入信道, 第二 AP指示的 时间长度不超出第二 AP的传输机会窗。
在一可选实施方式中, 第一 AP所在 BSS 内的部分 STA可能会不在第二 AP的通信范围之内, 例如在第一 AP与第二 AP不再彼此通信范围之内的情况 下, 由于第一 AP和第二 AP的交叠区域会比较小, 因此尤其可能出现第一 AP 所在 BSS内的 STA不在第二 AP的通信范围之内的情况,这样第一 AP所在 BSS 内的 STA就无法通过接收第二 AP发送的各种帧来确定是否可以在第二 AP的 传输机会窗内竞争接入信道。 基于此, 第一 AP在确定可以在第二 AP的传输 机会窗内同时竞争接入信道的情况下,可以在第二 AP的传输机会窗内指示第 一 AP所在 BSS内的 STA竞争接入信道。 对于 STA来说, 还会根据第一 AP的 指示在第二 AP的传输机会窗内竞争接入信道。
其中, 第一 AP在第二 AP的传输机会窗内指示第一 AP所在 BSS内的 STA 竞争接入信道的方式, 可以参照第一 AP在第一 AP的传输机会窗内指示第一 AP所在 BSS内的 STA竞争接入信道的方式。 例如, 第一 AP在第二 AP的传输 机会窗内分别向所述 STA发送起第五起始帧和第五结束帧, 以指示所述 STA 在所述第五起始帧和所述第五结束帧限定的时间内竞争接入信道。 对于 STA 来说,会自接收到其所关联的第一 AP发送的第五起始帧开始,竞争接入信道, 并在接收到其所关联的第一 AP发送的第五结束帧时, 停止竞争接入信道。又 例如, 第一 AP在第二 AP的传输机会窗内向 STA发送第六起始帧, 所述第六 起始帧携带有第一 AP指示所述 STA竞争接入信道的时间长度, 以指示所述 STA自接收到第六起始帧开始, 在第一 AP指示的时间长度内竞争接入信道; 其中, 第一 AP指示的时间长度不超出第二 AP的传输机会窗。 对 STA来说, 自接收到其所关联的第一 AP发送的第六起始帧开始, 竞争接入信道, 并在第 一 AP指示的时间长度结束, 停止竞争接入信道。
更进一步,当第一 AP确定出第一 AP的和第二 AP的传输机会窗的时间长 度和先后顺序之后, 可以将第一 AP的和第二 AP的传输机会窗的时间长度和 先后顺序发送给第二 AP。 当第一 AP确定出目标共享信道策略之后, 还可以 将所述目标共享信道策略发送给第二 AP。 这样可以使第二 AP确定是否在第 一 AP的传输机会窗内同时竞争接入信道。
在此说明, 第一 AP可以在同一过程中, 将第一 AP的和第二 AP的传输机 会窗的时间长度和先后顺序, 以及所述目标共享信道策略发送给第二 AP。 或 者, 第一 AP可以通过不同的过程, 分别将第一 AP的和第二 AP的传输机会窗 的时间长度和先后顺序, 以及所述目标共享信道策略发送给第二 AP。
由上述可见, 在本实施例提供的方法中, 第一 AP根据自身信息和竞争同 一信道的第二 AP的信息,确定第一 AP和第二 AP竞争接入信道使用的传输机 会窗的时间长度和先后顺序, 并根据各自支持的共享信道策略确定目标共享 信道策略,而后基于目标共享信道策略确定是否可以在第二 AP的传输机会窗 内同时竞争接入信息, 在确定结果为可以时, 根据两个 AP的传输机会窗的时 间长度和先后顺序, 在两个 AP的传输机会窗内竞争接入信息, 可以在保证公 平性原则的基础上, 允许不同 BSS共享信道。
图 4为本发明实施例提供的又一种信道接入方法的流程图。如图 4所示, 所述方法包括:
401、第一 AP关联的 STA接收第一 AP发送的目标共享信道策略, 所述目 标共享信道策略是所述第一 AP根据所述第一 AP支持的共享信道策略和与所 述第一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定的。 402、 STA根据所述目标共享信道策略, 确定是否可以在所述第二 AP的 传输机会窗内竞争接入所述信道。
403、 当确定可以在所述第二 AP的传输机会窗内竞争接入所述信道时, 所述 STA根据所述第二 AP在所述第二 AP的传输机会窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞争接入所述信道。
在一可选实施方式中, 所述方法还包括: STA根据所述第一 AP在所述第 一 AP的传输机会窗内发送的指示信息, 在所述第一 AP的传输机会窗内竞争 接入所述信道。
可选的, STA根据所述第一 AP在所述第一 AP的传输机会窗内发送的指 示信息, 在所述第一 AP的传输机会窗内竞争接入所述信道, 包括:
STA分别接收所述第一 AP在所述第一 AP的传输机会窗内发送的第一起 始帧和第一结束帧, 并在所述第一起始帧和所述第一结束帧限定的时间内竞 争接入所述信道; 或者
STA接收所述第一 AP在所述第一 AP的传输机会窗内发送的第二起始帧, 所述第二起始帧包括所述第一 AP指示的竞争接入所述信道的时间长度;所述 STA自接收到所述第二起始帧开始, 在所述第一 AP指示的时间长度内竞争接 入所述信道; 其中, 所述第一 AP指示的时间长度不超出所述第一 AP的传输 时间窗。
在一可选实施方式中, STA根据所述第二 AP在所述第二 AP的传输机会 窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞争接入所述信道, 包 括:
STA分别接收所述第二 AP在所述第二 AP的传输机会窗内发送的第三起 始帧和第三结束帧, 并在所述第三起始帧和所述第三结束帧限定的时间内竞 争接入所述信道; 或者
STA接收所述第二 AP在所述第二 AP的传输机会窗内发送的第四起始帧, 所述第四起始帧包括所述第二 AP指示的竞争接入所述信道的时间长度;所述 STA自接收到所述第四起始帧开始, 在所述第二 AP指示的时间长度内竞争接 入所述信道; 其中, 所述第二 AP指示的时间长度不超出所述第二 AP的传输 时间窗。
本实施例提供的方法与图 3所示实施例提供的方法相适应, 是从第一 AP 所在 BSS内的 STA的角度进行的描述, 详细步骤可参见图 3所示实施例, 本 实施例不再赘述。
图 5为本发明实施例提供的又一种信道接入方法的流程图。如图 5所示, 所述方法包括:
501、 第二 AP向与所述第二 AP竞争接入同一信道的第一 AP发送所述第 二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的信 息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会 窗的时间长度和先后顺序。
502、第二 AP接收所述第一 AP发送的所述第一 AP的和所述第二 AP的传 输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信道策 略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的共 享信道策略和所述第二 AP支持的共享信道策略确定的。
503、 第二 AP根据所述目标共享信道策略, 确定是否可以在所述第一 AP 的传输机会窗内同时竞争接入所述信道。
504、 当确定可以在所述第一 AP的传输机会窗内同时竞争接入所述信道 时,所述第二 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度 和先后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞 争接入所述信道。
本实施例提供的方法与图 3所示实施例提供的方法相适应, 是从第二 AP 的角度进行的描述。
首先说明, 本实施例中涉及的第二 AP可以是任何一个与第一 AP竞争接 入同一信道的 AP。 也就是说, 竞争接入同一信道的两个 AP之间均可以采用 本实施例提供的方法来竞争接入所述信道。
首先,第二 AP在竞争接入信道时, 向第一 AP发送第二 AP的信息。例如, 第二 AP可以发送的信标帧或广播携带有相关信息的广播帧。
可选的, 第二 AP的信息可以包括: 第二 AP所在 BSS的优先级、 第二 AP 遵从的商业协议的代码、 第二 AP关联的 STA的数目和第二 AP的负载中的至 少一个, 但不限于此。 相应的, 第一 AP的信息可以包括: 第一 AP所在 BSS 的优先级、 第一 AP遵从的商业协议的代码、 第一 AP关联的 STA的数目和第 一 AP的负载中的至少一个, 但不限于此。 可选的, 如果第一 AP和第二 AP在彼此的通信范围之内, 则第二 AP可以 直接向第一 AP发送第二 AP的信息。 如果第一 AP和第二 AP不在彼此的通信 范围之内, 则第二 AP可以通过同时处于第一 AP和第二 AP的覆盖范围内的 STA , 向第一 AP发送第二 AP的信息。 具体的, 第二 AP的信息先到达 STA, 再由 STA转发给第一 AP。
第一 AP获取到第二 AP的信息之后, 第一 AP可以根据第一 AP的信息和 第二 AP的信息,确定第一 AP和第二 AP竞争接入所述信道分别使用的传输机 会窗的时间长度和先后顺序, 并根据第一 AP支持的共享信道策略和第二 AP 支持的共享信道策略, 确定目标共享信道策略, 具体可参见图 3所示实施例 的描述。之后, 第一 AP将第一 AP和第二 AP竞争接入所述信道分别使用的传 输机会窗的时间长度和先后顺序,以及所述目标共享信道策略发送给第二 AP。
可选的, 第二 AP接收第一 AP发送的目标共享信道策略之前, 还包括: 第二 AP向第一 AP发送广播帧,所述广播帧包括第二 AP支持的共享信道策略。
可选的, 第二 AP可以在同一过程中, 同时接收第一 AP发送的第一 AP和 第二 AP竞争接入所述信道分别使用的传输机会窗的时间长度和先后顺序, 以 及所述目标共享信道策略。
关于目标共享信道策略以及共享信道策略的描述可参见图 3 所示实施 例, 在此不再赘述。
第二 AP接收到目标共享信道策略之后, 可以根据目标共享信道策略, 确 定是否可以在第一 AP的传输机会窗内同时竞争接入信道。
第二 AP根据目标共享信道策略, 确定是否可以在第一 AP的传输机会窗 内同时竞争接入信道的过程可以包括:
如果目标共享信道策略为 BSS优先级共享策略,则第二 AP可以根据所述 第一 AP所在 BSS的优先级和第二 AP所在 BSS的优先级的大小, 确定是否可 以在第一 AP的传输机会窗内同时竞争接入信道;
如果目标共享信道策略为商业协议共享策略, 则第二 AP根据第一 AP遵 从的商业协议的代码和第二 AP遵从的商业协议的代码,确定是否可以在第一 AP的传输机会窗内同时竞争接入信道。
在一可选实施方式中, 第二 AP根据第一 AP所在 BSS的优先级和第二 AP 所在 BSS的优先级的大小,确定是否可以在第一 AP的传输机会窗内同时竞争 接入信道的方式, 可以包括: 如果第一 AP所在 BSS的优先级低于或等于第二 AP所在 BSS的优先级低, 则第二 AP确定可以在第一 AP的传输机会窗内同时 竞争接入信道。
在此说明,第二 AP根据第一 AP所在 BSS的优先级和第二 AP所在 BSS的 优先级的大小,确定是否可以在第一 AP的传输机会窗内同时竞争接入信道的 方式并不限于上述, 还可以是其它方式。
进一步可选的, 第二 AP可以在根据第一 AP所在 BSS的优先级和第二 AP 所在 BSS的优先级的大小,确定是否可以在第一 AP的传输机会窗内同时竞争 接入信道之前, 预先知道第一 AP所在 BSS的优先级。 例如, 在第一 AP的信 息中包括第一 AP所在 BSS的优先级的情况下,第二 AP会预先知道第一 AP所 在 BSS的优先级。又例如, 在各 AP采用分布式方式确定各自所在 BSS的优先 级的场景中, 第二 AP也会预先知道第一 AP的优先级。
进一步可选的, 第二 AP可能在根据第一 AP所在 BSS的优先级和第二 AP 所在 BSS的优先级的大小,确定是否可以在第一 AP的传输机会窗内同时竞争 接入信道之前, 不知道第一 AP所在 BSS的优先级。 例如, 在第一 AP的信息 中不包括第一 AP所在 BSS的优先级的情况下,第二 AP会预先知道第一 AP所 在 BSS的优先级。 基于此, 第二 AP可能在根据第一 AP所在 BSS的优先级和 第二 AP所在 BSS的优先级的大小, 确定是否可以在第一 AP的传输机会窗内 同时竞争接入信道之前, 可以先获取第一 AP所在 BSS的优先级。例如, 第二 AP可以向第一 AP发送优先级获取请求, 以请求获取第一 AP所在 BSS的优先 级, 然后接收第一 AP针对优先级获取请求返回的该第一 AP所在 BSS的优先 级。 又例如, 第二 AP可以接收第一 AP周期性发送的信标帧, 从所接收的信 标帧中获取第一 AP所在 BSS的优先级, 等等。
在一可选实施方式中, 第二 AP根据第一 AP遵从的商业协议的代码和第 二 AP遵从的商业协议的代码, 确定是否可以在第一 AP的传输机会窗内同时 竞争接入信道的方式, 可以包括:
如果第一 AP遵从的商业协议的代码和第二 AP遵从的商业协议的代码相 同, 则第二 AP确定可以在第一 AP的传输机会窗内同时竞争接入信道。
在此说明,第二 AP根据第一 AP遵从的商业协议的代码和第二 AP遵从的 商业协议的代码,确定是否可以在第一 AP的传输机会窗内同时竞争接入信道 的方式并不限于上述, 还可以是其它方式。
进一步可选的, 第二 AP在根据第一 AP遵从的商业协议的代码和第二 AP 遵从的商业协议的代码,确定是否可以在第一 AP的传输机会窗内同时竞争接 入信道之前, 可能预先知道第一 AP遵从的商业协议的代码。 例如, 在第一 AP的信息包括第一 AP遵从的商业协议的代码的情况下, 第二 AP会预先知道 第一 AP遵从的商业协议的代码。
进一步可选的, 第二 AP在根据第一 AP遵从的商业协议的代码和第二 AP 遵从的商业协议的代码,确定是否可以在第一 AP的传输机会窗内同时竞争接 入信道之前, 可能不知道第一 AP遵从的商业协议的代码。 例如, 在第一 AP 的信息不包括第一 AP遵从的商业协议的代码的情况下, 则第二 AP在根据第 一 AP遵从的商业协议的代码和第二 AP遵从的商业协议的代码, 确定是否可 以在第一 AP的传输机会窗内同时竞争接入信道之前, 可以先获取第一 AP遵 从的商业协议的代码。 例如, 第二 AP可以向第一 AP发送商业协议代码获取 请求, 以请求获取第一 AP遵从的商业协议的代码, 然后接收第一 AP针对商 业协议代码获取请求返回的该第一 AP遵从的商业协议的代码。又例如, 第二 AP可以接收第一 AP周期性发送的信标帧, 从所接收的信标帧中获取第一 AP 遵从的商业协议的代码, 等等。
在第二 AP确定出可以在第一 AP的传输机会窗内同时竞争接入信道之后, 可以根据第一 AP的和第二 AP的传输机会窗的时间长度和先后顺序, 在第一 AP的传输机会窗和第二 AP的传输机会窗内竞争接入信道。
可选的,第一 AP确定第一 AP的和第二 AP的传输机会窗的时间长度和先 后顺序, 可以是确定第一 AP的传输机会窗的起始时间和结束时间, 以及第二 AP的传输机会窗的起始时间和结束时间; 或者可以是确定第一 AP的传输机 会窗的起始时间和时间长度, 以及第二 AP的传输机会窗的起始时间和时间长 度。 其中, 一旦确定了第一 AP的和第二 AP的传输机会窗的起始时间和结束 时间, 或者一旦确定了第第一 AP的和第二 AP的传输机会窗的起始时间和结 束时间, 也就意味着确定了第一 AP的和第二 AP的传输机会窗的时间长度和 先后顺序。在该情况下, 第二 AP根据第一 AP的和第二 AP的传输机会窗的时 间长度和先后顺序, 在第一 AP的传输机会窗和第二 AP的传输机会窗内竞争 接入信道, 包括: 第二 AP可以根据第一 AP的和第二 AP的传输机会窗的时间 长度和先后顺序, 分别确定第一 AP的传输机会窗和第二 AP的传输机会窗; 然后, 第二 AP按照第一 AP的和第二 AP的传输机会窗的先后顺序, 依次在第 一 AP的和第二 AP的传输机会窗内竞争接入信道。
可选的,第一 AP确定第一 AP的和第二 AP的传输机会窗的时间长度和先 后顺序, 可以是仅确定第一 AP的传输机会窗的时间长度、 第二 AP的传输机 会窗的时间长度、 以及第一 AP和第二 AP的传输机会窗被执行的先后顺序, 而没有确定传输机会窗的具体起始时间和结束时间。在该情况下, 第二 AP根 据第一 AP的和第二 AP的传输机会窗的时间长度和先后顺序,在第一 AP的传 输机会窗和第二 AP的传输机会窗内竞争接入信道, 可以包括: 第二 AP可以 根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后顺序, 确 定所述第二 AP的传输机会窗, 并根据所述第一 AP的传输机会窗的时间长度 和所述第一 AP发送的用于指示所述第一 AP的传输机会窗开始的起始帧, 确 定所述第一 AP的传输机会窗,按照所述第一 AP的和所述第二 AP的传输机会 窗的先后顺序, 依次在所述第一 AP的和所述第二 AP的传输机会窗内竞争接 入所述信道。在该实施方式中, 第二 AP可以根据第一 AP的和第二 AP的传输 机会窗的先后顺序, 确定出第一 AP的传输机会窗大致出现的位置, 进一步根 据第一 AP发送的用于指示第一 AP的传输机会窗开始的起始帧确定第一 AP的 传输机会窗的起始点, 并根据第一 AP 的传输机会窗的时间长度, 确定第一 AP的传输机会窗的结束点。 可选的, 第二 AP还可以根据第一 AP发送的用于 指示第一 AP的传输机会窗结束的结束帧, 确定第一 AP的传输机会窗的结束 点。
进一步可选的, 第二 AP根据共享目标信道策略, 也可能确定出不可以在 第一 AP的传输机会窗内同时竞争接入信道。 则当确定不可以在第一 AP的传 输机会窗内同时竞争接入信道时, 第二 AP仅在第二 AP的传输机会窗内竞争 接入信道。
进一步可选的, 考虑到第二 AP竞争接入信道的目的是为了与第二 AP所 在 BSS内的 STA进行通信, 因此, 第二 AP除了在第一 AP的传输机会窗和第 二 AP的传输机会窗内竞争接入信道之外, 还会在第二 AP的传输机会窗内指 示第二 AP所在 BSS内的 STA竞争接入信道。
在一可选实施方式中,第二 AP在第二 AP的传输机会窗内指示第二 AP所 在 BSS内的 STA竞争接入信道的方式, 可以包括:
第二 AP在第二 AP的传输机会窗内分别向所述 STA发送起第一起始帧和 结束帧, 以指示所述 STA在所述第一起始帧和所述结束帧限定的时间内竞争 接入信道。对于 STA来说, 会自接收到其所关联的第二 AP发送的第一起始帧 开始, 竞争接入信道, 并在接收到其所关联的第二 AP发送的结束帧时, 停止 竞争接入信道。 在此说明, 第一起始帧和结束帧可以是新定义的管理帧, 也 可以是信标帧。
进一步说明, 如果在第二 AP的传输机会窗内允许其他 AP (例如第一 AP ) 同时竞争接入信道, 则第二 AP 发送的第一起始帧和结束帧除了可以供第二 AP所在 BSS内的 STA竞争接入信道之外, 同样可以供其他 AP所在 BSS内的 STA竞争接入信道, 具体可参见图 4所示实施例的描述。
在一可选实施方式中,第二 AP在第二 AP的传输机会窗内指示第二 AP所 在 BSS内的 STA竞争接入信道的方式, 可以包括:
第二 AP在第二 AP的传输机会窗内向 STA发送第二起始帧, 所述第二起 始帧携带有第二 AP指示所述 STA竞争接入信道的时间长度, 以指示所述 STA 自接收到第二起始帧开始,在第二 AP指示的时间长度内竞争接入信道;其中, 第二 AP指示的时间长度不超出第二 AP的传输机会窗。 对 STA来说, 自接收 到其所关联的第二 AP发送的第二起始帧开始, 竞争接入信道, 并在第二 AP 指示的时间长度结束, 停止竞争接入信道。 在此说明, 第二起始帧可以是新 定义的管理帧, 也可以是信标帧。
进一步说明, 如果在第二 AP的传输机会窗允许其他 AP (例如第一 AP ) 同时竞争接入信道,则第二 AP发送的第二起始帧除了可以供第二 AP所在 BSS 内的 STA竞争接入信道之外,同样可以供其他 AP所在 BSS内的 STA竞争接入 信道, 具体可参见图 4所示实施例的描述。
在第二 AP可以在第一 AP的传输机会窗内同时竞争接入信道的情况, 第 二 AP所在 BSS内的 STA可以在第一 AP的传输机会窗内同时竞争接入信道。 但是, 对 STA来说, 需要根据一定的信息确定可以在第一 AP的传输机会窗内 同时竞争接入信道。
在一可选实施方式中, 第二 AP可以将目标共享信道策略发送给第二 AP 所在 BSS内的 STA, 以使所述 STA根据所述目标共享信道策略确定是否可以 在所述第一 AP的传输机会窗内竞争接入信道。 对 STA来说, 接收第二 AP发 送的目标共享策略, 然后根据所述目标共享信道策略确定是否可以在所述第 一 AP的传输机会窗内竞争接入信道。 其中, STA根据所述目标共享信道策略 确定是否可以在所述第一 AP 的传输机会窗内竞争接入信道的过程, 与第二 AP根据所述目标共享信道策略确定是否可以在所述第一 AP的传输机会窗内 竞争接入信道的过程相同, 不再赘述。 当 STA确定可以在所述第一 AP的传输 机会窗内竞争接入信道时, 可以接收第一 AP在第一 AP的传输机会窗内发送 的指示信息, 根据第一 AP在第一 AP的传输机会窗内发送的指示信息在第一 AP的传输机会窗内竞争接入信道。
在一可选实施方式中, 第二 AP可以向第二 AP所在 BSS内的 STA发送信 道共享消息, 所述信道共享消息包括所述第一 AP的标识, 以指示所述 STA可 以在所述第一 AP的传输机会窗内竞争接入所述信道。对 STA来说, 接收第二 AP发送的信道共享消息, 然后根据所述信道共享消息是否包括第一 AP的标 识, 来确定是否可以在所述第一 AP的传输机会窗内竞争接入信道。 当 STA确 定可以在所述第一 AP的传输机会窗内竞争接入信道时, 可以接收第一 AP在 第一 AP的传输机会窗内发送的指示信息,根据第一 AP在第一 AP的传输机会 窗内发送的指示信息在第一 AP的传输机会窗内竞争接入信道。
例如, STA根据第一 AP在第一 AP的传输机会窗内发送的指示信息, 在 第一 AP的传输机会窗内竞争接入信道, 可以包括:
STA可以接收第一 AP在第一 AP的传输机会窗内发送的第三起始帧和第 三结束帧, 并在第三起始帧和第三结束帧限定的时间内竞争接入信道; 或者 STA可以接收第一 AP在第一 AP的传输机会窗内发送的第四起始帧, 在 第四起始帧携带的第一 AP指示的时间长度内竞争接入信道, 第一 AP指示的 时间长度不超出第一 AP的传输机会窗。
在一可选实施方式中, 第二 AP所在 BSS内的 STA可能会不在第一 AP的 通信范围之内, 例如在第二 AP与第一 AP不在彼此通信范围之内的情况下, 由于第一 AP和第二 AP的交叠区域会比较小,因此尤其可能出现第二 AP所在 BSS内的 STA不在第一 AP的通信范围之内的情况, 这样第二 AP所在 BSS内 的 STA就无法通过接收第一 AP发送的各种帧来确定是否可以在第一 AP的传 输机会窗内竞争接入信道。 基于此, 第二 AP在确定可以在第一 AP的传输机 会窗内同时竞争接入信道的情况下,可以在第一 AP的传输机会窗内指示第二 AP所在 BSS内的 STA竞争接入信道。 对于 STA来说, 还会根据第二 AP的指 示在第一 AP的传输机会窗内竞争接入信道。
其中, 第二 AP在第一 AP的传输机会窗内指示第二 AP所在 BSS内的 STA 竞争接入信道的方式, 可以参照第二 AP在第二 AP的传输机会窗内指示第二 AP所在 BSS内的 STA竞争接入信道的方式。 例如, 第二 AP在第一 AP的传输 机会窗内分别向所述 STA发送起第五起始帧和第五结束帧, 以指示所述 STA 在所述第五起始帧和所述第五结束帧限定的时间内竞争接入信道。 对于 STA 来说,会自接收到其所关联的第二 AP发送的第五起始帧开始,竞争接入信道, 并在接收到其所关联的第二 AP发送的第五结束帧时, 停止竞争接入信道。又 例如, 第二 AP在第一 AP的传输机会窗内向 STA发送第六起始帧, 所述第六 起始帧携带有第二 AP指示所述 STA竞争接入信道的时间长度, 以指示所述 STA自接收到第六起始帧开始, 在第二 AP指示的时间长度内竞争接入信道; 其中, 第二 AP指示的时间长度不超出第一 AP的传输机会窗。 对 STA来说, 自接收到其所关联的第二 AP发送的第六起始帧开始, 竞争接入信道, 并在第 二 AP指示的时间长度结束, 停止竞争接入信道。
由上述可见, 在本实施例提供的方法中, 第二 AP将自身的信息上报竞争 同一信道的第一 AP , 使得第一 AP确定第一 AP和第二 AP竞争接入信道使用 的传输机会窗的时间长度和先后顺序, 以及目标共享信道策略, 而后第二 AP 基于第一 AP发送的目标共享信道策略确定是否可以在第一 AP的传输机会窗 内同时竞争接入信息, 在确定结果为可以时, 根据两个 AP的传输机会窗的时 间长度和先后顺序, 在两个 AP的传输机会窗内竞争接入信息, 可以在保证公 平性原则的基础上, 允许不同 BSS共享信道。
图 6为本发明实施例提供的一种信道接入控制单元的结构示意图。 如图 6所示, 所述信道接入控制单元包括: 接收模块 61、 第一确定模块 62、 第二 确定模块 63和发送模块 64。
接收模块 61, 用于接收竞争接入同一信道的每个 AP上报的信息。
第一确定模块 62, 用于根据接收模块 61接收的所述信息, 确定每个 AP 用于竞争接入所述信道使用的传输机会窗。
第二确定模块 63, 用于根据预设的共享信道策略, 确定第一确定模块 62 确定的每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述 信道。
发送模块 64, 用于在第二确定模块 63 的确定结果为允许时, 将允许其 他 AP 同时竞争接入所述信道的传输机会窗的指示信息发送给所述传输机会 窗对应的 AP和允许同时竞争接入所述信道的其他 AP , 以使所述传输机会窗 对应的 AP所在基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP所在 BSS内的设备在所述传输机会窗内同时竞争接入所述信道。
在一可选实施方式中, 发送模块 64还用于在第二确定模块 63的确定结 果为不允许时,将不允许其他 AP同时竞争接入所述信道的传输机会窗的指示 信息发送给所述传输机会窗对应的 AP , 以使所述传输机会窗对应的 AP所在 BSS内的设备在所述传输机会窗内竞争接入所述信道。
在一可选实施方式中,第二确定模块 63具体可用于在预设的共享信道策 略为 BSS优先级共享策略时, 根据每个 AP所在 BSS的优先级的大小, 确定每 个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道;或 者, 在预设的共享信道策略为商业协议共享策略时, 根据每个 AP遵从的商业 协议的代码,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞 争接入所述信道。
进一步可选的,第二确定模块 63用于在预设的共享信道策略为 BSS优先 级共享策略时, 根据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输 机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道, 包括:
第二确定模块 63具体用于根据每个 AP所在 BSS的优先级, 确定在每个 AP的传输机会窗内允许所在 BSS的优先级比所述 AP所在 BSS的优先级高的 AP或所在 BSS的优先级和所述 AP所在 BSS的优先级相同的 AP同时竞争接入 所述信道。
进一步可选的,第二确定模块 63用于在预设的共享信道策略为商业协议 共享策略时, 根据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会 窗内是否允许其他 AP与所述 AP同时竞争接入所述信道, 包括:
第二确定模块 63具体用于根据每个 AP遵从的商业协议的代码, 确定遵 从的商业协议的代码相同的 AP 可以在彼此的传输机会窗内同时竞争接入所 述信道。 在一可选实施方式中, 发送模块 64具体可用于将允许其他 AP同时竞争 接入所述信道的传输机会窗的起始时间和结束时间, 发送给所述传输机会窗 对应的 AP和允许同时竞争接入所述信道的其他 AP; 或者
发送模块 64具体可用于将允许其他 AP同时竞争接入所述信道的传输机 会窗的起始时间和时间长度,发送给所述传输机会窗对应的 AP和允许同时竞 争接入所述信道的其他 AP。
在一可选实施方式中, 发送模块 64还用于向每个 AP发送起始帧发送时 刻和结束帧发送时刻,以使所述 AP在所述起始帧发送时刻向所述 AP所在 BSS 内的站点 STA发送第一起始帧,并在所述结束帧发送向所述 AP所在 BSS内的 STA发送结束帧, 以指示所述 AP所在 BSS内的 STA在所述第一起始帧和所述 结束帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束 帧限定的时间不超出所述 AP的传输机会窗; 或者
发送模块 64还用于向每个 AP发送起始帧发送时刻和指示每个 AP所在
BSS内的 STA竞争接入所述信道的时间长度, 以使所述 AP在所述起始帧发送 时刻向所述 AP所在 BSS内的站点 STA发送第二起始帧,并在所述第二起始帧 中携带指示所述 STA竞争接入所述信道的时间长度, 以指示所述 AP所在 BSS 内的 STA自所述第二起始帧开始, 在指示所述 STA竞争接入所述信道的时间 长度内竞争接入所述信道; 其中, 指示所述 STA竞争接入所述信道的时间长 度不超出所述 AP的传输机会窗。
在此说明, 本实施例中 AP上报的信息包括: AP所在 BSS的优先级、 AP 遵从的商业协议的代码、 AP关联的 STA的数目和 AP的负载中的至少一个, 但不限于此。
在一可选实施方式中, 第一确定模块 62具体可用于根据接收模块 61接 收的所述信息,确定每个 AP用于竞争接入所述信道使用的传输机会窗的起始 时间和结束时间; 或者
第一确定模块 62具体用于根据接收模块 61接收的所述信息, 确定每个 AP用于竞争接入所述信道使用的传输机会窗的起始时间和时间长度。
在此说明, 第一确定模块 62确定的每个 AP的传输机会窗的时间长度可 以相同; 或者, 第一确定模块 62确定的每个 AP的传输机会窗的时间长度也 可以不同。 本实施例提供的信道接入控制单元可以是 AC, 或者可以设置于 AC中实 现, 或者可以是独立于 AC的控制单元等。
本实施例提供的信道接入控制单元的各功能模块可用于执行图 1所示方 法实施例的流程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的信道接入控制单元,根据竞争接入同一信道的各 AP的信 息确定各 AP竞争接入信道使用的传输机会窗,而后根据共享信道策略确定每 个 AP的传输机会窗内是否允许其他 AP同时竞争接入信道, 在确定结果为允 许时,将允许其他 AP同时竞争接入信道的传输机会窗的指示信息发送给该传 输机会窗的 AP和允许同时竞争接入信道的其他 AP, 使得这些 AP所在 BSS内 的设备可以在该传输机会窗内同时竞争接入所述信道, 可以在保证公平性原 则的基础上, 允许不同 BSS共享信道。
图 7为本发明实施例提供的另一种信道接入控制单元的结构示意图。 如 图 7所示, 所述信道接入控制单元包括: 接收器 71、 处理器 72、 发射器 73 和存储器 74。
接收器 71, 用于接收竞争接入同一信道的每个 AP上报的信息。
存储器 74可以包括只读存储器和随机存取存储器, 并向处理器 72提供 指令和数据。 存储器 74 的一部分还可以包括非易失性随机存取存储器 (NVRAM)
存储器 74存储了如下的元素, 可执行模块或者数据结构, 或者它们的子 集, 或者它们的扩展集:
操作指令: 包括各种操作指令, 用于实现各种操作。
操作系统: 包括各种系统程序, 用于实现各种基础业务以及处理基于硬 件的任务。
在本发明实施例中, 处理器 72通过调用存储器 74存储的操作指令 (该 操作指令可存储在操作系统中) , 执行如下操作:
根据接收器 71接收的所述信息, 确定每个 AP用于竞争接入所述信道使 用的传输机会窗, 并根据预设的共享信道策略, 确定每个 AP的传输机会窗内 是否允许其他 AP与所述 AP同时竞争接入所述信道。
发射器 73, 用于在处理器 72的确定结果为允许时, 将允许其他 AP同时 竞争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP 和允许同时竞争接入所述信道的其他 AP, 以使所述传输机会窗对应的 AP所 在基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP所在 BSS 内的设备在所述传输机会窗内同时竞争接入所述信道。
在此说明, 处理器 72可以控制信道接入控制单元的操作, 处理器 72还 可以称为中央处理单元 (Central Processing Unit , 简称为 CPU) 。 存储器 74可以包括只读存储器和随机存取存储器, 并向处理器 72提供指令和数据。 存储器 74的一部分还可以包括非易失性随机存取存储器 (NVRAM) 。 具体的 应用中, 信道接入控制单元的各个组件通过总线系统 75耦合在一起, 其中总 线系统 75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 75。
上述本发明实施例揭示的方法可以应用于处理器 72 中, 或者由处理器 72实现。 处理器 72可能是一种集成电路芯片, 具有信号的处理能力。 在实 现过程中,上述方法的各步骤可以通过处理器 72中的硬件的集成逻辑电路或 者软件形式的指令完成。上述的处理器 72可以是通用处理器、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。 通用处理器可 以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本发明实施 例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成, 或者用译 码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储器、 寄存器 等本领域成熟的存储介质中。 该存储介质位于存储器 74, 处理器 72读取存 储器 74中的信息, 结合其硬件完成上述方法的步骤。
在一可选实施方式中, 发射器 73还用于在处理器 72的确定结果为不允 许时,将不允许其他 AP同时竞争接入所述信道的传输机会窗的指示信息发送 给所述传输机会窗对应的 AP, 以使所述传输机会窗对应的 AP所在 BSS内的 设备在所述传输机会窗内竞争接入所述信道。
在一可选实施方式中, 处理器 72 具体可用于在预设的共享信道策略为 BSS优先级共享策略时, 根据每个 AP所在 BSS的优先级的大小, 确定每个 AP 的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道; 或者, 在预设的共享信道策略为商业协议共享策略时,根据每个 AP遵从的商业协议 的代码,确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接 入所述信道。
进一步可选的,处理器 72用于在预设的共享信道策略为 BSS优先级共享 策略时, 根据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输机会窗 内是否允许其他 AP与所述 AP同时竞争接入所述信道, 包括:
处理器 72具体用于根据每个 AP所在 BSS的优先级,确定在每个 AP的传 输机会窗内允许所在 BSS的优先级比所述 AP所在 BSS的优先级高的 AP或所 在 BSS的优先级和所述 AP所在 BSS的优先级相同的 AP同时竞争接入所述信 道。
进一步可选的,处理器 72用于在预设的共享信道策略为商业协议共享策 略时, 根据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会窗内是 否允许其他 AP与所述 AP同时竞争接入所述信道, 包括:
处理器 72具体用于根据每个 AP遵从的商业协议的代码, 确定遵从的商 业协议的代码相同的 AP可以在彼此的传输机会窗内同时竞争接入所述信道。
在一可选实施方式中, 发射器 73具体可用于将允许其他 AP同时竞争接 入所述信道的传输机会窗的起始时间和结束时间, 发送给所述传输机会窗对 应的 AP和允许同时竞争接入所述信道的其他 AP; 或者
发射器 73具体可用于将允许其他 AP同时竞争接入所述信道的传输机会 窗的起始时间和时间长度,发送给所述传输机会窗对应的 AP和允许同时竞争 接入所述信道的其他 AP。
在一可选实施方式中, 发射器 73还用于向每个 AP发送起始帧发送时刻 和结束帧发送时刻, 以使所述 AP在所述起始帧发送时刻向所述 AP所在 BSS 内的站点 STA发送第一起始帧,并在所述结束帧发送向所述 AP所在 BSS内的 STA发送结束帧, 以指示所述 AP所在 BSS内的 STA在所述第一起始帧和所述 结束帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束 帧限定的时间不超出所述 AP的传输机会窗; 或者
发射器 73还用于向每个 AP发送起始帧发送时刻和指示每个 AP所在 BSS 内的 STA竞争接入所述信道的时间长度, 以使所述 AP在所述起始帧发送时刻 向所述 AP所在 BSS内的站点 STA发送第二起始帧,并在所述第二起始帧中携 带指示所述 STA竞争接入所述信道的时间长度, 以指示所述 AP所在 BSS内的 STA 自所述第二起始帧开始, 在指示所述 STA竞争接入所述信道的时间长度 内竞争接入所述信道; 其中, 指示所述 STA竞争接入所述信道的时间长度不 超出所述 AP的传输机会窗。
在此说明, 本实施例中 AP上报的信息包括: AP所在 BSS的优先级、 AP 遵从的商业协议的代码、 AP关联的 STA的数目和 AP的负载中的至少一个, 但不限于此。
在一可选实施方式中, 处理器 72具体可用于根据接收器 71接收的所述 信息,确定每个 AP用于竞争接入所述信道使用的传输机会窗的起始时间和结 束时间; 或者
处理器 72具体用于根据接收器 71接收的所述信息,确定每个 AP用于竞 争接入所述信道使用的传输机会窗的起始时间和时间长度。
在此说明,处理器 72确定的每个 AP的传输机会窗的时间长度可以相同; 或者, 处理器 72确定的每个 AP的传输机会窗的时间长度也可以不同。
本实施例提供的信道接入控制单元可以是 AC, 或者可以设置于 AC中实 现, 或者可以是独立于 AC的控制单元等。
本实施例提供的信道接入控制单元可用于执行图 1所示方法实施例的流 程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的信道接入控制单元,根据竞争接入同一信道的各 AP的信 息确定各 AP竞争接入信道使用的传输机会窗,而后根据共享信道策略确定每 个 AP的传输机会窗内是否允许其他 AP同时竞争接入信道, 在确定结果为允 许时,将允许其他 AP同时竞争接入信道的传输机会窗的指示信息发送给该传 输机会窗的 AP和允许同时竞争接入信道的其他 AP, 使得这些 AP所在 BSS内 的设备可以在该传输机会窗内同时竞争接入所述信道, 可以在保证公平性原 则的基础上, 允许不同 BSS共享信道。
图 8为本发明实施例提供的一种 AP的结构示意图。 如图 8所示, 所述
AP包括: 发送模块 81、 接收模块 82和信道竞争模块 83。
发送模块 81, 用于在需要竞争接入信道时, 向信道接入控制单元上报信 息, 以使所述信道接入控制单元根据所有竞争接入所述信道的 AP 上报的信 息, 确定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用 的传输机会窗。 接收模块 82, 用于接收所述信道接入控制单元发送的用于指示所述 AP 竞争接入所述信道可以使用的传输机会窗的指示信息。
信道竞争模块 83, 用于在接收模块 82接收的所述指示信息指示的传输 机会窗内竞争接入所述信道。
在一可选实施方式中,接收模块 82具体用于接收所述信道接入控制单元 发送的所述传输机会窗的起始时间和结束时间; 或者
接收模块 82 具体用于接收所述信道接入控制单元发送的所述传输机会 窗的起始时间和时间长度。
在一可选实施方式中,所述 AP还包括:竞争指示模块。该竞争指示模块, 用于在接收模块 82接收的所述指示信息指示的传输机会窗内指示所述 AP所 在 BSS内的 STA竞争接入所述信道。
进一步可选的, 竞争指示模块具体用于在所述信道接入控制单元指示的 起始帧发送时刻, 向所述 AP所在 BSS内的 STA发送指示所述 STA开始竞争接 入所述信道的第一起始帧, 并在所述信道接入控制单元指示的结束帧发送时 亥 lj, 向所述 STA发送指示所述 STA停止竞争接入所述信道的结束帧, 以指示 所述 STA在所述第一起始帧和所述结束帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时间不超出所述传输机会窗; 或 者
所述竞争指示模块具体用于在所述信道接入控制单元指示的起始帧发送 时刻, 向所述 AP所在 BSS内的 STA发送用于指示所述 STA开始竞争接入所述 信道的第二起始帧, 所述第二起始帧携带有所述信道接入控制单元指示的所 述 STA竞争接入所述信道的时间长度, 以指示所述 STA自接收到所述第二起 始帧开始, 在所述信道接入控制单元指示的时间长度内竞争接入所述信道; 其中, 所述信道接入控制单元指示的时间长度不超出所述传输机会窗。
在一可选实施方式中,接收模块 82还用于接收所述信道接入控制单元发 送的所述起始帧发送时刻和所述结束帧发送时刻; 或者
接收模块 82 还用于接收所述信道接入控制单元发送的所述起始帧发送 时刻和指示所述 STA竞争接入所述信道的时间长度。
本实施例提供的 AP 的各功能模块可用于执行图 2所示方法实施例的流 程, 其具体工作原理不再赘述, 详见方法实施例的描述。 本实施例提供的 AP, 与上述实施例提供的信道接入控制单元相配合, 在 信道接入控制单元发送的指示信息所指示的传输机会窗内竞争接入所述信 道, 可以在保证公平性原则的基础上, 允许不同 BSS共享信道。
图 9为本发明实施例提供的另一种 AP的结构示意图。如图 9所示, 所述 AP包括: 发射器 91、 接收器 92、 处理器 93和存储器 94。
发射器 91,用于在需要竞争接入信道时, 向信道接入控制单元上报信息, 以使所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确 定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输 机会窗。
接收器 92, 用于接收所述信道接入控制单元发送的用于指示所述 AP竞 争接入所述信道可以使用的传输机会窗的指示信息。
存储器 94可以包括只读存储器和随机存取存储器, 并向处理器 93提供 指令和数据。 存储器 94 的一部分还可以包括非易失性随机存取存储器 (NVRAM)
存储器 94存储了如下的元素, 可执行模块或者数据结构, 或者它们的子 集, 或者它们的扩展集:
操作指令: 包括各种操作指令, 用于实现各种操作。
操作系统: 包括各种系统程序, 用于实现各种基础业务以及处理基于硬 件的任务。
在本发明实施例中, 处理器 93通过调用存储器 94存储的操作指令 (该 操作指令可存储在操作系统中) , 执行如下操作:
在接收器 92 接收的所述指示信息指示的传输机会窗内竞争接入所述信 道。
在此说明, 处理器 93可以控制本实施例 AP的操作, 处理器 93还可以称 为 CPU。 存储器 94可以包括只读存储器和随机存取存储器, 并向处理器 93 提供指令和数据。 存储器 94 的一部分还可以包括非易失性随机存取存储器 (NVRAM) 。 具体的应用中, 本实施例 AP的各个组件通过总线系统 95耦合在 一起, 其中总线系统 95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 95。 上述本发明实施例揭示的方法可以应用于处理器 93 中, 或者由处理器 93实现。 处理器 93可能是一种集成电路芯片, 具有信号的处理能力。 在实 现过程中,上述方法的各步骤可以通过处理器 93中的硬件的集成逻辑电路或 者软件形式的指令完成。上述的处理器 93可以是通用处理器、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。 通用处理器可 以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本发明实施 例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成, 或者用译 码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储器、 寄存器 等本领域成熟的存储介质中。 该存储介质位于存储器 94, 处理器 93读取存 储器 94中的信息, 结合其硬件完成上述方法的步骤。
在一可选实施方式中,接收器 92具体用于接收所述信道接入控制单元发 送的所述传输机会窗的起始时间和结束时间; 或者
接收器 92 具体用于接收所述信道接入控制单元发送的所述传输机会窗 的起始时间和时间长度。
在一可选实施方式中, 处理器 93, 还可用于在接收器 92接收的所述指 示信息指示的传输机会窗内指示所述 AP所在 BSS内的 STA竞争接入所述信 道。
进一步可选的, 处理器 93具体可用于通过发射器 91在所述信道接入控 制单元指示的起始帧发送时刻, 向所述 AP所在 BSS 内的 STA发送指示所述 STA开始竞争接入所述信道的第一起始帧, 并通过发射器 91在所述信道接入 控制单元指示的结束帧发送时刻, 向所述 STA发送指示所述 STA停止竞争接 入所述信道的结束帧, 以指示所述 STA在所述第一起始帧和所述结束帧限定 的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时 间不超出所述传输机会窗。 相应的, 发射器 91还用于向所述 AP所在 BSS内 的 STA发送指示所述 STA开始竞争接入所述信道的第一起始帧,并向所述 STA 发送指示所述 STA停止竞争接入所述信道的结束帧。
或者
处理器 93具体可用于通过发射器 91在所述信道接入控制单元指示的起 始帧发送时刻, 向所述 AP所在 BSS内的 STA发送用于指示所述 STA开始竞争 接入所述信道的第二起始帧, 所述第二起始帧携带有所述信道接入控制单元 指示的所述 STA竞争接入所述信道的时间长度, 以指示所述 STA自接收到所 述第二起始帧开始, 在所述信道接入控制单元指示的时间长度内竞争接入所 述信道; 其中, 所述信道接入控制单元指示的时间长度不超出所述传输机会 窗。 相应的, 发射器 91还用于向所述 AP所在 BSS内的 STA发送用于指示所 述 STA开始竞争接入所述信道的第二起始帧。
在一可选实施方式中,接收器 92还用于接收所述信道接入控制单元发送 的所述起始帧发送时刻和所述结束帧发送时刻; 或者
接收器 92 还用于接收所述信道接入控制单元发送的所述起始帧发送时 刻和指示所述 STA竞争接入所述信道的时间长度。
本实施例提供的 AP可用于执行图 2所示方法实施例的流程,其具体工作 原理不再赘述, 详见方法实施例的描述。
本实施例提供的 AP, 与上述实施例提供的信道接入控制单元相配合, 在 信道接入控制单元发送的指示信息所指示的传输机会窗内竞争接入所述信 道, 可以在保证公平性原则的基础上, 允许不同 BSS共享信道。
图 10为本发明实施例提供的一种信道接入装置的结构示意图。所述装置 可以设置于第一 AP内实现或作为所述第一 AP实现。如图 10所示, 所述装置 包括: 获取模块 1001、 第一确定模块 1002、 第二确定模块 1003和信道竞争 模块 1004。
获取模块 1001, 用于获取与所述第一 AP竞争接入同一信道的第二 AP的 信息, 根据所述第一 AP的信息和所述第二 AP的信息, 确定所述第一 AP和所 述第二 AP竞争接入所述信道分别使用的传输机会窗的时间长度和先后顺序。
第一确定模块 1002, 用于根据所述第一 AP支持的共享信道策略和所述 第二 AP支持的共享信道策略,确定所述第一 AP和所述第二 AP共同使用的目 标共享信道策略。
第二确定模块 1003, 用于根据第一确定模块 1002确定的所述目标共享 信道策略,确定是否可以在所述第二 AP的传输机会窗内同时竞争接入所述信 道。
信道竞争模块 1004, 用于在第二确定模块 1003确定可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道时,根据获取模块 1001确定的所述第 一 AP的和所述第二 AP的传输机会窗的时间长度和先后顺序, 在所述第一 AP 的传输机会窗和所述第二 AP的传输机会窗内竞争接入所述信道。
在一可选实施方式中,信道竞争模块 1004还可用于在第二确定模块 1003 确定不可以在所述第二 AP的传输机会窗内同时竞争接入所述信道时,仅在所 述第一 AP的传输机会窗内竞争接入所述信道。
进一步, 如图 11所示, 所述信道接入装置还包括: 接收模块 1005。 接 收模块 1005, 用于在第一确定模块 1002确定所述目标共享信道策略之前, 接收所述第二 AP发送的广播帧, 所述广播帧包括所述第二 AP支持的共享信 道策略, 以向第一确定模块 1002提供第二 AP支持的共享信道策略。
在一可选实施方式中, 第一确定模块 1002 确定的目标共享信道策略为 BSS优先级共享策略。 基于此, 第二确定模块 1003具体可用于根据所述第一 AP所在 BSS的优先级和所述第二 AP所在 BSS的优先级的大小, 确定是否可 以在所述第二 AP的传输机会窗内同时竞争接入所述信道。
进一步可选的, 第二确定模块 1003具体用于在所述第二 AP所在 BSS的 优先级低于或等于所述第一 AP所在 BSS 的优先级时, 确定可以在所述第二 AP的传输机会窗内同时竞争接入所述信道。
在一可选实施方式中,第一确定模块 1002确定的目标共享信道策略为商 业协议共享策略。 基于此, 第二确定模块 1003具体用于根据所述第一 AP遵 从的商业协议的代码和所述第二 AP遵从的商业协议的代码,确定是否可以在 所述第二 AP的传输机会窗内同时竞争接入所述信道。
进一步可选的, 第二确定模块 1003具体用于在所述第一 AP遵从的商业 协议的代码和所述第二 AP遵从的商业协议的代码相同时,确定可以在所述第 二 AP的传输机会窗内同时竞争接入所述信道。
进一步, 如图 11 所示, 所述信道接入装置还包括: 第一竞争指示模块
1006。 第一竞争指示模块 1006, 用于在获取模块 1001确定的所述第一 AP的 传输机会窗内指示所述第一 AP所在 BSS内的 STA竞争接入所述信道。
进一步可选的, 第一竞争指示模块 1006具体可用于在所述第一 AP的传 输机会窗内分别向所述 STA发送起第一始帧和结束帧, 以指示所述 STA在所 述第一起始帧和所述结束帧限定的时间内竞争接入所述信道; 或者 第一竞争指示模块 1006具体可用于在所述第一 AP的传输机会窗内向所 述 STA发送第二起始帧,所述第二起始帧携带有所述第一 AP指示所述 STA竞 争接入所述信道的时间长度, 以指示所述 STA自接收到所述第二起始帧开始, 在所述第一 AP指示的时间长度内竞争接入所述信道; 其中, 所述第一 AP指 示的时间长度不超出所述第一 AP的传输机会窗。
进一步, 如图 1 1所示, 所述信道接入装置还包括: 第一发送模块 1007。 第一发送模块 1007, 用于将第一确定模块 1002确定的所述目标共享信道策 略发送给所述第一 AP所在 BSS内的 STA, 以使所述 STA根据所述目标共享信 道策略确定是否可以在所述第二 AP 的传输机会窗内竞争接入所述信道; 或 者, 用于向所述 STA发送信道共享消息, 所述信道共享消息包括所述第二 AP 的标识, 以指示所述 STA可以在所述第二 AP的传输机会窗内竞争接入所述信 道。
在一可选实施方式中, 信道竞争模块 1004具体可用于根据所述第一 AP 的和所述第二 AP 的传输机会窗的时间长度和先后顺序, 分别确定所述第一 AP的传输机会窗和所述第二 AP的传输机会窗, 并按照所述第一 AP的和所述 第二 AP的传输机会窗的先后顺序,依次在所述第一 AP的和所述第二 AP的传 输机会窗内竞争接入所述信道; 或者
信道竞争模块 1004具体可用于根据所述第一 AP的和所述第二 AP的传输 机会窗的时间长度和先后顺序, 确定所述第一 AP的传输机会窗, 并根据所述 第二 AP的传输机会窗的时间长度和所述第二 AP发送的用于指示所述第二 AP 的传输机会窗开始的起始帧, 确定所述第二 AP的传输机会窗, 按照所述第一 AP的和所述第二 AP的传输机会窗的先后顺序, 依次在所述第一 AP的和所述 第二 AP的传输机会窗内竞争接入所述信道。
进一步, 如图 1 1所示, 所述信道接入装置还包括: 第二发送模块 1008。 第二发送模块 1008, 用于将获取模块 1001确定的所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后顺序, 发送给所述第二 AP, 并将第一确定 模块 1002确定的所述目标共享信道策略发送给所述第二 AP , 以使所述第二 AP确定是否在所述第一 AP的传输机会窗内同时竞争接入所述信道。
在一可选实施方式中,获取模块 1001具体可用于接收同时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA发送的所述第二 AP的信息。 进一步, 如图 11 所示, 所述信道接入装置还包括: 第二竞争指示模块 1009。 第二竞争指示模块 1009, 用于在获取模块 1001确定的所述第二 AP的 传输机会窗内指示所述第一 AP所在 BSS内的 STA竞争接入所述信道。
本实施例提供的信道接入装置的各功能模块可用于执行图 3所示方法实 施例的流程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的信道接入装置, 设置于第一 AP内实现或作为第一 AP实 现, 根据第一 AP的信息和竞争同一信道的第二 AP的信息, 确定第一 AP和第 二 AP竞争接入信道使用的传输机会窗的时间长度和先后顺序,并根据各自支 持的共享信道策略确定目标共享信道策略, 而后基于目标共享信道策略确定 是否可以在第二 AP 的传输机会窗内同时竞争接入信息, 在确定结果为可以 时, 根据两个 AP的传输机会窗的时间长度和先后顺序, 在两个 AP的传输机 会窗内竞争接入信息, 可以在保证公平性原则的基础上, 允许不同 BSS共享 信道。
图 12为本发明实施例提供的又一种信道接入装置的结构示意图。所述装 置可以设置于第一 AP内实现或作为所述第一 AP实现。如图 12所示, 所述装 置包括: 存储器 1201和处理器 1202。
存储器 1201可以包括只读存储器和随机存取存储器,并向处理器 602提 供指令和数据。 存储器 1201 的一部分还可以包括非易失性随机存取存储器 (NVRAM)
存储器 1201存储了如下的元素, 可执行模块或者数据结构, 或者它们的 子集, 或者它们的扩展集:
操作指令: 包括各种操作指令, 用于实现各种操作。
操作系统: 包括各种系统程序, 用于实现各种基础业务以及处理基于硬 件的任务。
在本发明实施例中, 处理器 1202通过调用存储器 1201存储的操作指令
(该操作指令可存储在操作系统中) , 执行如下操作:
获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一 AP的信息和所述第二 AP的信息, 确定所述第一 AP和所述第二 AP竞争接入 所述信道分别使用的传输机会窗的时间长度和先后顺序, 并根据所述第一 AP 支持的共享信道策略和所述第二 AP支持的共享信道策略, 确定所述第一 AP 和所述第二 AP共同使用的目标共享信道策略,并根据所述第一确定模块确定 的所述目标共享信道策略,确定是否可以在所述第二 AP的传输机会窗内同时 竞争接入所述信道, 以及在确定可以在所述第二 AP的传输机会窗内同时竞争 接入所述信道时, 根据所述第一 AP的和所述第二 AP的传输机会窗的时间长 度和先后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内 竞争接入所述信道。
进一步, 本实施例的信道接入装置还可以包括接收器 1203 和发射器 1204, 负责完成所述信道接入装置和其它设备之间的通信。
其中,处理器 1202可以控制本实施例信道接入装置的操作,处理器 1202 还可以称为 CPU。 存储器 1201可以包括只读存储器和随机存取存储器, 并向 处理器 1202提供指令和数据。 存储器 1201的一部分还可以包括非易失性随 机存取存储器(NVRAM ) 。 具体的应用中, 本实施例的信道接入装置的各个组 件通过总线系统 1205耦合在一起,其中总线系统 1205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 1205。
上述本发明实施例揭示的方法可以应用于处理器 1202中,或者由处理器 1202实现。 处理器 1202可能是一种集成电路芯片, 具有信号的处理能力。 在实现过程中,上述方法的各步骤可以通过处理器 1202中的硬件的集成逻辑 电路或者软件形式的指令完成。上述的处理器 1202可以是通用处理器、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。 通用 处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本 发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成, 或者用译码处理器中的硬件及软件模块组合执行完成。 软件模块可以位于随 机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储 器、 寄存器等本领域成熟的存储介质中。 该存储介质位于存储器 1201, 处理 器 1202读取存储器 1201中的信息, 结合其硬件完成上述方法的步骤。
在一可选实施方式中, 处理器 1202 还可用于在确定不可以在所述第二 AP的传输机会窗内同时竞争接入所述信道时, 仅在所述第一 AP的传输机会 窗内竞争接入所述信道。 在一可选实施方式中, 接收器 1203具体可用于在处理器 1202确定所述 目标共享信道策略之前, 接收所述第二 AP发送的广播帧, 所述广播帧包括所 述第二 AP支持的共享信道策略, 以向处理器 1202提供第二 AP支持的共享信 道策略。
在一可选实施方式中,处理器 1202确定的目标共享信道策略为 BSS优先 级共享策略。 基于此, 处理器 1202具体可用于根据所述第一 AP所在 BSS的 优先级和所述第二 AP所在 BSS 的优先级的大小, 确定是否可以在所述第二 AP的传输机会窗内同时竞争接入所述信道。
进一步可选的, 处理器 1202具体用于在所述第二 AP所在 BSS的优先级 低于或等于所述第一 AP所在 BSS的优先级时, 确定可以在所述第二 AP的传 输机会窗内同时竞争接入所述信道。
在一可选实施方式中,处理器 1202确定的目标共享信道策略为商业协议 共享策略。 基于此, 处理器 1202具体用于根据所述第一 AP遵从的商业协议 的代码和所述第二 AP遵从的商业协议的代码, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道。
进一步可选的, 处理器 1202具体用于在所述第一 AP遵从的商业协议的 代码和所述第二 AP遵从的商业协议的代码相同时, 确定可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道。
在一可选实施方式中, 处理器 1202还可用于在所述第一 AP的传输机会 窗内指示所述第一 AP所在 BSS内的 STA竞争接入所述信道。
进一步可选的, 处理器 1202具体可用于通过发射器 1204在所述第一 AP 的传输机会窗内分别向所述 STA发送起第一始帧和结束帧, 以指示所述 STA 在所述第一起始帧和所述结束帧限定的时间内竞争接入所述信道。 相应的, 发射器 1204可用于向所述 STA发送起第一始帧和结束帧。 或者
处理器 1202具体可用于通过发射器 1204在所述第一 AP的传输机会窗内 向所述 STA发送第二起始帧, 所述第二起始帧携带有所述第一 AP指示所述 STA竞争接入所述信道的时间长度, 以指示所述 STA 自接收到所述第二起始 帧开始, 在所述第一 AP指示的时间长度内竞争接入所述信道; 其中, 所述第 一 AP指示的时间长度不超出所述第一 AP的传输机会窗。相应的,发射器 1204 还用于向所述 STA发送第二起始帧。 在一可选实施方式中, 发射器 1204还用于将处理器 1202确定的所述目 标共享信道策略发送给所述第一 AP所在 BSS内的 STA, 以使所述 STA根据所 述目标共享信道策略确定是否可以在所述第二 AP 的传输机会窗内竞争接入 所述信道; 或者, 用于向所述 STA发送信道共享消息, 所述信道共享消息包 括所述第二 AP的标识, 以指示所述 STA可以在所述第二 AP的传输机会窗内 竞争接入所述信道。
在一可选实施方式中, 处理器 1202具体可用于根据所述第一 AP的和所 述第二 AP的传输机会窗的时间长度和先后顺序, 分别确定所述第一 AP的传 输机会窗和所述第二 AP的传输机会窗, 并按照所述第一 AP的和所述第二 AP 的传输机会窗的先后顺序, 依次在所述第一 AP的和所述第二 AP的传输机会 窗内竞争接入所述信道; 或者
处理器 1202具体可用于根据所述第一 AP的和所述第二 AP的传输机会窗 的时间长度和先后顺序, 确定所述第一 AP 的传输机会窗, 并根据所述第二 AP的传输机会窗的时间长度和所述第二 AP发送的用于指示所述第二 AP的传 输机会窗开始的起始帧, 确定所述第二 AP的传输机会窗, 按照所述第一 AP 的和所述第二 AP的传输机会窗的先后顺序, 依次在所述第一 AP的和所述第 二 AP的传输机会窗内竞争接入所述信道。
在一可选实施方式中, 发射器 1204还用于将处理器 1202确定的所述第 一 AP的和所述第二 AP的传输机会窗的时间长度和先后顺序, 发送给所述第 二 AP, 并将处理器 1202确定的所述目标共享信道策略发送给所述第二 AP , 以使所述第二 AP确定是否在所述第一 AP的传输机会窗内同时竞争接入所述 信道。
在一可选实施方式中, 处理器 1202具体可用于通过接收器 1203接收同 时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA发送的所述第二 AP的 信息。 相应的, 接收器 1203还可用于接收同时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA发送的所述第二 AP的信息。
在一可选实施方式中, 处理器 1202还用于在所述第二 AP的传输机会窗 内指示所述第一 AP所在 BSS内的 STA竞争接入所述信道。
本实施例提供的信道接入装置可用于执行图 3所示方法实施例的流程, 其具体工作原理不再赘述, 详见方法实施例的描述。 本实施例提供的信道接入装置, 设置于第一 AP内实现或作为第一 AP实 现, 根据第一 AP的信息和竞争同一信道的第二 AP的信息, 确定第一 AP和第 二 AP竞争接入信道使用的传输机会窗的时间长度和先后顺序,并根据各自支 持的共享信道策略确定目标共享信道策略, 而后基于目标共享信道策略确定 是否可以在第二 AP 的传输机会窗内同时竞争接入信息, 在确定结果为可以 时, 根据两个 AP的传输机会窗的时间长度和先后顺序, 在两个 AP的传输机 会窗内竞争接入信息, 可以在保证公平性原则的基础上, 允许不同 BSS共享 信道。
图 13为本发明实施例提供的一种 STA的结构示意图。所述 STA关联于第 一 AP。 如图 13所示, 所述 STA包括: 接收模块 1301、 确定模块 1302和信道 竞争模块 1303。
接收模块 1301, 用于接收所述第一 AP发送的目标共享信道策略, 所述 目标共享信道策略是所述第一 AP根据所述第一 AP支持的共享信道策略和与 所述第一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定的。
确定模块 1302, 用于根据接收模块 1301接收的所述目标共享信道策略, 确定是否可以在所述第二 AP的传输机会窗内竞争接入所述信道。
信道竞争模块 1303, 用于在确定模块 1302确定可以在所述第二 AP的传 输机会窗内竞争接入所述信道时, 根据所述第二 AP在所述第二 AP的传输机 会窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞争接入所述信道。
在一可选实施方式中, 信道竞争模块 1303还用于根据所述第一 AP在所 述第一 AP的传输机会窗内发送的指示信息, 在所述第一 AP的传输机会窗内 竞争接入所述信道。
进一步可选的, 信道竞争模块 1303用于根据所述第一 AP在所述第一 AP 的传输机会窗内发送的指示信息,在所述第一 AP的传输机会窗内竞争接入所 述信道, 包括:
信道竞争模块 1303具体用于分别接收所述第一 AP在所述第一 AP的传输 机会窗内发送的第一起始帧和第一结束帧, 在所述第一起始帧和所述第一结 束帧限定的时间内竞争接入所述信道; 或者
信道竞争模块 1303具体用于接收所述第一 AP在所述第一 AP的传输机会 窗内发送的第二起始帧, 自接收到所述第二起始帧开始, 在所述第一 AP指示 的时间长度内竞争接入所述信道; 其中, 所述第二起始帧包括所述第一 AP指 示的竞争接入所述信道的时间长度,所述第一 AP指示的时间长度不超出所述 第一 AP的传输时间窗。
在一可选实施方式中, 信道竞争模块 1303用于根据所述第二 AP在所述 第二 AP的传输机会窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞 争接入所述信道, 包括:
信道竞争模块 1303具体用于分别接收所述第二 AP在所述第二 AP的传输 机会窗内发送的第三起始帧和第三结束帧, 在所述第三起始帧和所述第三结 束帧限定的时间内竞争接入所述信道; 或者
信道竞争模块 1303具体用于接收所述第二 AP在所述第二 AP的传输机会 窗内发送的第四起始帧, 自接收到所述第四起始帧开始, 在所述第二 AP指示 的时间长度内竞争接入所述信道; 其中, 所述第四起始帧包括所述第二 AP指 示的竞争接入所述信道的时间长度,所述第二 AP指示的时间长度不超出所述 第二 AP的传输时间窗。
本实施例提供的 STA的各功能模块可用于执行图 4所示方法实施例的流 程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的 STA, 与上述实施例提供的信道接入装置相配合, 可以 在保证公平性原则的基础上, 允许不同 BSS共享信道。
图 14为本发明实施例提供的另一种 STA的结构示意图。所述 STA关联于 第一 AP。 如图 14所示, 所述 STA包括: 接收器 1401、 处理器 1402和存储器 1403。
接收模块 1401, 用于接收所述第一 AP发送的目标共享信道策略, 所述 目标共享信道策略是所述第一 AP根据所述第一 AP支持的共享信道策略和与 所述第一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定的。
存储器 1403可以包括只读存储器和随机存取存储器, 并向处理器 1402 提供指令和数据。存储器 1403的一部分还可以包括非易失性随机存取存储器 (NVRAM)
存储器 1403存储了如下的元素, 可执行模块或者数据结构, 或者它们的 子集, 或者它们的扩展集:
操作指令: 包括各种操作指令, 用于实现各种操作。 操作系统: 包括各种系统程序, 用于实现各种基础业务以及处理基于硬 件的任务。
在本发明实施例中, 处理器 1402通过调用存储器 1403存储的操作指令 (该操作指令可存储在操作系统中) , 执行如下操作:
根据接收器 1401接收的所述目标共享信道策略,确定是否可以在所述第 二 AP的传输机会窗内竞争接入所述信道, 以及在确定可以在所述第二 AP的 传输机会窗内竞争接入所述信道时, 根据所述第二 AP在所述第二 AP的传输 机会窗内发送的指示信息, 在所述第二 AP 的传输机会窗内竞争接入所述信 道。
进一步, 本实施例的 STA还可以包括: 发射器 1404。 发射器 1404与接 收器 1401相配合, 负责完成所述 STA与其他设备之间的通信。
其中, 处理器 1402控制本实施例 STA的操作, 处理器 1402还可以称为 CPUo 存储器 1403可以包括只读存储器和随机存取存储器, 并向处理器 1402 提供指令和数据。存储器 1403的一部分还可以包括非易失性随机存取存储器 (NVRAM) 。 具体的应用中, 本实施例 STA的各个组件通过总线系统 1405耦 合在一起, 其中总线系统 1405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 1405。
上述本发明实施例揭示的方法可以应用于处理器 1402中,或者由处理器 1402实现。 处理器 1402可能是一种集成电路芯片, 具有信号的处理能力。 在实现过程中,上述方法的各步骤可以通过处理器 1402中的硬件的集成逻辑 电路或者软件形式的指令完成。上述的处理器 1402可以是通用处理器、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。 通用 处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本 发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成, 或者用译码处理器中的硬件及软件模块组合执行完成。 软件模块可以位于随 机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储 器、 寄存器等本领域成熟的存储介质中。 该存储介质位于存储器 1403, 处理 器 1402读取存储器 1403中的信息, 结合其硬件完成上述方法的步骤。 在一可选实施方式中, 处理器 1402还用于根据所述第一 AP在所述第一 AP的传输机会窗内发送的指示信息, 在所述第一 AP的传输机会窗内竞争接 入所述信道。
进一步可选的,处理器 1402用于根据所述第一 AP在所述第一 AP的传输 机会窗内发送的指示信息, 在所述第一 AP 的传输机会窗内竞争接入所述信 道, 包括:
处理器 1402具体用于通过接收器 1401分别接收所述第一 AP在所述第一 AP的传输机会窗内发送的第一起始帧和第一结束帧, 在所述第一起始帧和所 述第一结束帧限定的时间内竞争接入所述信道; 相应的, 接收器 1401还用于 接收所述第一 AP在所述第一 AP的传输机会窗内发送的第一起始帧和第一结 束帧; 或者
处理器 1402具体用于通过接收器 1401接收所述第一 AP在所述第一 AP 的传输机会窗内发送的第二起始帧, 自接收到所述第二起始帧开始, 在所述 第一 AP指示的时间长度内竞争接入所述信道; 其中, 所述第二起始帧包括所 述第一 AP指示的竞争接入所述信道的时间长度, 所述第一 AP指示的时间长 度不超出所述第一 AP的传输时间窗; 相应的, 接收器 1401还用于接收所述 第一 AP在所述第一 AP的传输机会窗内发送的第二起始帧。
在一可选实施方式中, 处理器 1402用于根据所述第二 AP在所述第二 AP 的传输机会窗内发送的指示信息,在所述第二 AP的传输机会窗内竞争接入所 述信道, 包括:
处理器 1402具体用于通过接收器 1401分别接收所述第二 AP在所述第二 AP的传输机会窗内发送的第三起始帧和第三结束帧, 在所述第三起始帧和所 述第三结束帧限定的时间内竞争接入所述信道; 相应的, 接收器 1401还用于 接收所述第二 AP在所述第二 AP的传输机会窗内发送的第三起始帧和第三结 束帧; 或者
处理器 1402具体用于通过接收器 1403接收所述第二 AP在所述第二 AP 的传输机会窗内发送的第四起始帧, 自接收到所述第四起始帧开始, 在所述 第二 AP指示的时间长度内竞争接入所述信道; 其中, 所述第四起始帧包括所 述第二 AP指示的竞争接入所述信道的时间长度, 所述第二 AP指示的时间长 度不超出所述第二 AP的传输时间窗; 相应的, 接收器 1401还用于接收所述 第二 AP在所述第二 AP的传输机会窗内发送的第四起始帧。
本实施例提供的 STA可用于执行图 4所示方法实施例的流程, 其具体工 作原理不再赘述, 详见方法实施例的描述。
本实施例提供的 STA, 与上述实施例提供的信道接入装置相配合, 可以 在保证公平性原则的基础上, 允许不同 BSS共享信道。
图 15为本发明实施例提供的又一种信道接入装置的结构示意图。所述信 道接入装置设置于第二 AP内实现或作为第二 AP实现。如图 15所示, 所述装 置包括:发送模块 1501、接收模块 1502、确定模块 1503和信道竞争模块 1504。
发送模块 1501, 用于向与所述第二 AP竞争接入同一信道的第一 AP发送 所述第二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的信息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传 输机会窗的时间长度和先后顺序。
接收模块 1502, 用于接收所述第一 AP发送的所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后顺序, 并接收所述第一 AP发送的目标共 享信道策略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP 支持的共享信道策略和所述第二 AP支持的共享信道策略确定的。
确定模块 1503, 用于根据接收模块 1502接收的所述目标共享信道策略, 确定是否可以在所述第一 AP的传输机会窗内同时竞争接入所述信道。
信道竞争模块 1504, 用于在确定模块 1503确定可以在所述第一 AP的传 输机会窗内同时竞争接入所述信道时, 根据所述第一 AP的和所述第二 AP的 传输机会窗的时间长度和先后顺序,在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞争接入所述信道。
在一可选实施方式中, 信道竞争模块 1504还用于在确定模块 1503确定 不可以在所述第一 AP的传输机会窗内同时竞争接入所述信道时,仅在所述第 二 AP的传输机会窗内竞争接入所述信道。
在一可选实施方式中, 发送模块 1501还用于在接收模块 1502接收所述 目标共享信道策略之前, 向所述第一 AP发送广播帧, 所述广播帧包括所述第 二 AP支持的共享信道策略。
在一可选实施方式中, 发送模块 1501 具体用于通过同时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA, 向所述第一 AP发送所述第二 AP的信 本实施例提供的信道接入装置的各功能模块可用于执行图 5所示方法实 施例的流程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的信道接入装置, 设置于第二 AP内实现或作为第二 AP实 现, 与上述实施例提供的信道接入装置和 STA相配合, 将第二 AP的信息上报 竞争同一信道的第一 AP , 使得第一 AP确定第一 AP和第二 AP竞争接入信道 使用的传输机会窗的时间长度和先后顺序, 以及目标共享信道策略, 而后第 二 AP基于第一 AP发送的目标共享信道策略确定是否可以在第一 AP的传输机 会窗内同时竞争接入信息, 在确定结果为可以时, 根据两个 AP的传输机会窗 的时间长度和先后顺序, 在两个 AP的传输机会窗内竞争接入信息, 可以在保 证公平性原则的基础上, 允许不同 BSS共享信道。
图 16为本发明实施例提供的又一种信道接入装置的结构示意图。所述信 道接入装置设置于第二 AP内实现或作为第二 AP实现。如图 16所示, 所述装 置包括: 发射器 1601、 接收器 1602、 处理器 1603和存储器 1604。
发射器 1601, 用于向与所述第二 AP竞争接入同一信道的第一 AP发送所 述第二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP 的信息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输 机会窗的时间长度和先后顺序。
接收器 1602,用于接收所述第一 AP发送的所述第一 AP的和所述第二 AP 的传输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信 道策略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持 的共享信道策略和所述第二 AP支持的共享信道策略确定的。
存储器 1604可以包括只读存储器和随机存取存储器, 并向处理器 1603 提供指令和数据。存储器 1604的一部分还可以包括非易失性随机存取存储器 (NVRAM) 。
存储器 1604存储了如下的元素, 可执行模块或者数据结构, 或者它们的 子集, 或者它们的扩展集:
操作指令: 包括各种操作指令, 用于实现各种操作。
操作系统: 包括各种系统程序, 用于实现各种基础业务以及处理基于硬 件的任务。 在本发明实施例中, 处理器 1603通过调用存储器 1604存储的操作指令 (该操作指令可存储在操作系统中) , 执行如下操作:
根据接收器 1602确定的所述目标共享信道策略,确定是否可以在所述第 一 AP 的传输机会窗内同时竞争接入所述信道, 以及在确定可以在所述第一 AP的传输机会窗内同时竞争接入所述信道时, 根据所述第一 AP的和所述第 二 AP的传输机会窗的时间长度和先后顺序, 在所述第一 AP的传输机会窗和 所述第二 AP的传输机会窗内竞争接入所述信道。
处理器 1603控制本实施例信道接入装置的操作, 处理器 1603还可以称 为 CPU。存储器 1604可以包括只读存储器和随机存取存储器,并向处理器 1603 提供指令和数据。存储器 1604的一部分还可以包括非易失性随机存取存储器 (NVRAM) 。 具体的应用中, 本实施例的信道接入装置的各个组件通过总线系 统 1605耦合在一起, 其中总线系统 1605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 1605。
上述本发明实施例揭示的方法可以应用于处理器 1603中,或者由处理器
1603实现。 处理器 1603可能是一种集成电路芯片, 具有信号的处理能力。 在实现过程中,上述方法的各步骤可以通过处理器 1603中的硬件的集成逻辑 电路或者软件形式的指令完成。上述的处理器 1603可以是通用处理器、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。 通用 处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。 结合本 发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成, 或者用译码处理器中的硬件及软件模块组合执行完成。 软件模块可以位于随 机存储器, 闪存、 只读存储器, 可编程只读存储器或者电可擦写可编程存储 器、 寄存器等本领域成熟的存储介质中。 该存储介质位于存储器 1604, 处理 器 1603读取存储器 1604中的信息, 结合其硬件完成上述方法的步骤。
在一可选实施方式中, 处理器 1603还用于在确定不可以在所述第一 AP 的传输机会窗内同时竞争接入所述信道时,仅在所述第二 AP的传输机会窗内 竞争接入所述信道。
在一可选实施方式中, 发射器 1601还用于在接收器 1602接收所述目标 共享信道策略之前, 向所述第一 AP 发送广播帧, 所述广播帧包括所述第二 AP支持的共享信道策略。
在一可选实施方式中, 发射器 1601具体用于通过同时处于所述第一 AP 和所述第二 AP的覆盖范围内的 STA,向所述第一 AP发送所述第二 AP的信息。
本实施例提供的信道接入装置可用于执行图 5所示方法实施例的流程, 其具体工作原理不再赘述, 详见方法实施例的描述。
本实施例提供的信道接入装置, 设置于第二 AP内实现或作为第二 AP实 现, 与上述实施例提供的信道接入装置和 STA相配合, 将第二 AP的信息上报 竞争同一信道的第一 AP , 使得第一 AP确定第一 AP和第二 AP竞争接入信道 使用的传输机会窗的时间长度和先后顺序, 以及目标共享信道策略, 而后第 二 AP基于第一 AP发送的目标共享信道策略确定是否可以在第一 AP的传输机 会窗内同时竞争接入信息, 在确定结果为可以时, 根据两个 AP的传输机会窗 的时间长度和先后顺序, 在两个 AP的传输机会窗内竞争接入信息, 可以在保 证公平性原则的基础上, 允许不同 BSS共享信道。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权利 要 求书
1、 一种信道接入方法, 其特征在于, 包括:
信道接入控制单元接收竞争接入同一信道的每个接入点 AP上报的信息, 根据所述信息, 确定每个 AP用于竞争接入所述信道使用的传输机会窗;
所述信道接入控制单元根据预设的共享信道策略,确定每个 AP的传输机 会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道;
如果确定结果为允许,则所述信道接入控制单元将允许其他 AP同时竞争 接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP 和 允许同时竞争接入所述信道的其他 AP , 以使所述传输机会窗对应的 AP所在 基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP所在 BSS内 的设备在所述传输机会窗内同时竞争接入所述信道。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
如果确定结果为不允许,则所述信道接入控制单元将不允许其他 AP同时 竞争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP , 以使所述传输机会窗对应的 AP所在 BSS内的设备在所述传输机会窗内竞 争接入所述信道。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述信道接入控制单 元根据预设的共享信道策略, 确定每个 AP的传输机会窗内是否允许其他 AP 与所述 AP同时竞争接入所述信道, 包括:
如果预设的共享信道策略为 BSS优先级共享策略, 所述信道接入控制单 元根据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输机会窗内是否 允许其他 AP与所述 AP同时竞争接入所述信道;
如果预设的共享信道策略为商业协议共享策略, 所述信道接入控制单元 根据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允许 其他 AP与所述 AP同时竞争接入所述信道。
4、 根据权利要求 3所述的方法, 其特征在于, 所述信道接入控制单元根 据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输机会窗内是否允许 其他 AP与所述 AP同时竞争接入所述信道, 包括:
所述信道接入控制单元根据每个 AP所在 BSS的优先级, 确定在每个 AP 的传输机会窗内允许所在 BSS的优先级比所述 AP所在 BSS的优先级高的 AP 或所在 BSS的优先级和所述 AP所在 BSS的优先级相同的 AP同时竞争接入所 述信道;
所述信道接入控制单元根据每个 AP 遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道,包括: 所述信道接入控制单元根据每个 AP遵从的商业协议的代码,确定遵从的 商业协议的代码相同的 AP 可以在彼此的传输机会窗内同时竞争接入所述信 道。
5、 根据权利要求 1-4任一项所述的方法, 其特征在于, 所述信道接入控 制单元将允许其他 AP同时竞争接入所述信道的传输机会窗的指示信息,发送 给所述传输机会窗对应的 AP和允许同时竞争接入所述信道的其他 AP , 包括: 所述信道接入控制单元将允许其他 AP 同时竞争接入所述信道的传输机 会窗的起始时间和结束时间,发送给所述传输机会窗对应的 AP和允许同时竞 争接入所述信道的其他 AP; 或者
所述信道接入控制单元将允许其他 AP 同时竞争接入所述信道的传输机 会窗的起始时间和时间长度,发送给所述传输机会窗对应的 AP和允许同时竞 争接入所述信道的其他 AP。
6、 根据权利要求 1-5任一项所述的方法, 其特征在于, 还包括: 所述信道接入控制单元向每个 AP 发送起始帧发送时刻和结束帧发送时 亥 lj, 以使所述 AP在所述起始帧发送时刻向所述 AP所在 BSS内的站点 STA发 送第一起始帧,并在所述结束帧发送向所述 AP所在 BSS内的 STA发送结束帧, 以指示所述 AP所在 BSS内的 STA在所述第一起始帧和所述结束帧限定的时间 内竞争接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时间不超 出所述 AP的传输机会窗; 或者
所述信道接入控制单元向每个 AP发送起始帧发送时刻和指示每个 AP所 在 BSS内的 STA竞争接入所述信道的时间长度, 以使所述 AP在所述起始帧发 送时刻向所述 AP所在 BSS内的站点 STA发送第二起始帧,并在所述第二起始 帧中携带指示所述 STA竞争接入所述信道的时间长度, 以指示所述 AP所在 BSS内的 STA 自所述第二起始帧开始, 在指示所述 STA竞争接入所述信道的 时间长度内竞争接入所述信道; 其中, 指示所述 STA竞争接入所述信道的时 间长度不超出所述 AP的传输机会窗。
7、 根据权利要求 1-6任一项所述的方法, 其特征在于, 所述 AP上报的 信息包括: 所述 AP所在 BSS的优先级、 所述 AP遵从的商业协议的代码、 所 述 AP关联的 STA的数目和所述 AP的负载中的至少一个。
8、 根据权利要求 1-7任一项所述的方法, 其特征在于, 所述信道接入控 制单元根据所述信息, 确定每个 AP用于竞争接入所述信道使用的传输机会 窗, 包括:
所述信道接入控制单元根据所述信息,确定每个 AP用于竞争接入所述信 道使用的传输机会窗的起始时间和结束时间; 或者
所述信道接入控制单元根据所述信息,确定每个 AP用于竞争接入所述信 道使用的传输机会窗的起始时间和时间长度。
9、 根据权利要求 8所述的方法, 其特征在于, 每个 AP的传输机会窗的 时间长度相同; 或者
每个 AP的传输机会窗的时间长度不同。
10、 一种信道接入方法, 其特征在于, 包括:
当需要竞争接入信道时, 接入点 AP向信道接入控制单元上报信息, 以使 所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确定所 有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输机会 窗;
所述 AP接收所述信道接入控制单元发送的用于指示所述 AP竞争接入所 述信道可以使用的传输机会窗的指示信息;
所述 AP在所述指示信息指示的传输机会窗内竞争接入所述信道。
11、 根据权利要求 10所述的方法, 其特征在于, 所述 AP接收所述信道 接入控制单元发送的用于指示所述 AP 竞争接入所述信道可以使用的传输机 会窗的指示信息, 包括:
所述 AP 接收所述信道接入控制单元发送的所述传输机会窗的起始时间 和结束时间; 或者
所述 AP 接收所述信道接入控制单元发送的所述传输机会窗的起始时间 和时间长度。
12、 根据权利要求 10或 11所述的方法, 其特征在于, 所述 AP在所述指 示信息指示的传输机会窗内竞争接入所述信道之后, 还包括: 所述 AP在所述指示信息指示的传输机会窗内指示所述 AP所在 BSS内的 站点 STA竞争接入所述信道。
13、 根据权利要求 12所述的方法, 其特征在于, 所述 AP在所述指示信 息指示的传输机会窗内指示所述 AP所在 BSS 内的站点 STA竞争接入所述信 道, 包括:
所述 AP在所述信道接入控制单元指示的起始帧发送时刻, 向所述 AP所 在 BSS内的 STA发送指示所述 STA开始竞争接入所述信道的第一起始帧, 并 在所述信道接入控制单元指示的结束帧发送时刻, 向所述 STA发送指示所述 STA停止竞争接入所述信道的结束帧, 以指示所述 STA在所述第一起始帧和 所述结束帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述 结束帧限定的时间不超出所述传输机会窗; 或者
所述 AP在所述信道接入控制单元指示的起始帧发送时刻, 向所述 AP所 在 BSS内的 STA发送用于指示所述 STA开始竞争接入所述信道的第二起始帧, 所述第二起始帧携带有所述信道接入控制单元指示的所述 STA竞争接入所述 信道的时间长度, 以指示所述 STA 自接收到所述第二起始帧开始, 在所述信 道接入控制单元指示的时间长度内竞争接入所述信道; 其中, 所述信道接入 控制单元指示的时间长度不超出所述传输机会窗。
14、 根据权利要求 13所述的方法, 其特征在于, 还包括:
所述 AP 接收所述信道接入控制单元发送的所述起始帧发送时刻和所述 结束帧发送时刻; 或者
所述 AP 接收所述信道接入控制单元发送的所述起始帧发送时刻和指示 所述 STA竞争接入所述信道的时间长度。
15、 一种信道接入方法, 其特征在于, 包括:
第一接入点 AP获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一 AP的信息和所述第二 AP的信息,确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会窗的时间长度和先后顺序;
所述第一 AP根据所述第一 AP支持的共享信道策略和所述第二 AP支持的 共享信道策略, 确定所述第一 AP和所述第二 AP共同使用的目标共享信道策 略;
所述第一 AP根据所述目标共享信道策略, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道;
当确定可以在所述第二 AP的传输机会窗内同时竞争接入所述信道时,所 述第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后 顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞争接入 所述信道。
16、 根据权利要求 15所述的方法, 其特征在于, 还包括:
当确定不可以在所述第二 AP的传输机会窗内同时竞争接入所述信道时, 所述第一 AP仅在所述第一 AP的传输机会窗内竞争接入所述信道。
17、 根据权利要求 15或 16所述的方法, 其特征在于, 所述第一 AP根据 所述第一 AP支持的共享信道策略和所述第二 AP支持的共享信道策略, 确定 所述第一 AP和所述第二 AP共同使用的目标共享信道策略之前, 还包括: 所述第一 AP接收所述第二 AP发送的广播帧, 所述广播帧包括所述第二 AP支持的共享信道策略。
18、 根据权利要求 15-17任一项所述的方法, 其特征在于, 所述目标共 享信道策略为基本服务集 BSS优先级共享策略;
所述第一 AP根据所述目标共享信道策略, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道, 包括:
所述第一 AP根据所述第一 AP所在 BSS的优先级和所述第二 AP所在 BSS 的优先级的大小,确定是否可以在所述第二 AP的传输机会窗内同时竞争接入 所述信道。
19、 根据权利要求 18所述的方法, 其特征在于, 所述第一 AP根据所述 第一 AP所在基本服务集 BSS的优先级和所述第二 AP所在 BSS的优先级的大 小, 确定是否可以在所述第二 AP的传输机会窗内同时竞争接入所述信道, 包 括:
如果所述第二 AP所在 BSS的优先级低于或等于所述第一 AP所在 BSS的 优先级, 则所述第一 AP确定可以在所述第二 AP的传输机会窗内同时竞争接 入所述信道。
20、 根据权利要求 15-17任一项所述的方法, 其特征在于, 所述目标共 享信道策略为商业协议共享策略;
所述第一 AP根据所述目标共享信道策略, 确定是否可以在所述第二 AP 的传输机会窗内同时竞争接入所述信道, 包括:
所述第一 AP根据所述第一 AP遵从的商业协议的代码和所述第二 AP遵从 的商业协议的代码,确定是否可以在所述第二 AP的传输机会窗内同时竞争接 入所述信道。
21、 根据权利要求 20所述的方法, 其特征在于, 所述第一 AP根据所述 第一 AP遵从的商业协议的代码和所述第二 AP遵从的商业协议的代码, 确定 是否可以在所述第二 AP的传输机会窗内同时竞争接入所述信道, 包括:
如果所述第一 AP遵从的商业协议的代码和所述第二 AP遵从的商业协议 的代码相同, 则所述第一 AP确定可以在所述第二 AP的传输机会窗内同时竞 争接入所述信道。
22、 根据权利要求 15-21任一项所述的方法, 其特征在于, 还包括: 所述第一 AP在所述第一 AP的传输机会窗内指示所述第一 AP所在 BSS内 的站点 STA竞争接入所述信道。
23、 根据权利要求 22所述的方法, 其特征在于, 所述第一 AP在所述第 一 AP的传输机会窗内指示所述第一 AP所在 BSS内的站点 STA竞争接入所述 信道, 包括:
所述第一 AP在所述第一 AP的传输机会窗内分别向所述 STA发送起第一 始帧和结束帧, 以指示所述 STA在所述第一起始帧和所述结束帧限定的时间 内竞争接入所述信道; 或者
所述第一 AP在所述第一 AP的传输机会窗内向所述 STA发送第二起始帧, 所述第二起始帧携带有所述第一 AP指示所述 STA竞争接入所述信道的时间长 度, 以指示所述 STA自接收到所述第二起始帧开始, 在所述第一 AP指示的时 间长度内竞争接入所述信道; 其中, 所述第一 AP指示的时间长度不超出所述 第一 AP的传输机会窗。
24、 根据权利要求 15-23任一项所述的方法, 其特征在于, 还包括: 所述第一 AP将所述目标共享信道策略发送给所述第一 AP所在 BSS内的 STA , 以使所述 STA根据所述目标共享信道策略确定是否可以在所述第二 AP 的传输机会窗内竞争接入所述信道; 或者
所述第一 AP向所述 STA发送信道共享消息,所述信道共享消息包括所述 第二 AP的标识, 以指示所述 STA可以在所述第二 AP的传输机会窗内竞争接 入所述信道。
25、 根据权利要求 15-24任一项所述的方法, 其特征在于, 所述第一 AP 根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后顺序, 在 所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞争接入所述信道, 包括:
所述第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度 和先后顺序, 分别确定所述第一 AP的传输机会窗和所述第二 AP的传输机会 窗, 并按照所述第一 AP的和所述第二 AP的传输机会窗的先后顺序, 依次在 所述第一 AP的和所述第二 AP的传输机会窗内竞争接入所述信道; 或者
所述第一 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度 和先后顺序, 确定所述第一 AP的传输机会窗, 并根据所述第二 AP的传输机 会窗的时间长度和所述第二 AP发送的用于指示所述第二 AP的传输机会窗开 始的起始帧, 确定所述第二 AP的传输机会窗, 按照所述第一 AP的和所述第 二 AP的传输机会窗的先后顺序,依次在所述第一 AP的和所述第二 AP的传输 机会窗内竞争接入所述信道。
26、 根据权利要求 15-25任一项所述的方法, 其特征在于, 还包括: 所述第一 AP将所述第一 AP的和所述第二 AP的传输机会窗的时间长度和 先后顺序, 发送给所述第二 AP, 并将所述目标共享信道策略发送给所述第二 AP, 以使所述第二 AP确定是否在所述第一 AP的传输机会窗内同时竞争接入 所述信道。
27、 根据权利要求 15-26任一项所述的方法, 其特征在于, 所述第一接 入点 AP获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 包括:
所述第一 AP接收同时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA发送的所述第二 AP的信息。
28、 根据权利要求 15-27任一项所述的方法, 其特征在于, 还包括: 所述第一 AP在所述第二 AP的传输机会窗内指示所述第一 AP所在 BSS内 的 STA竞争接入所述信道。
29、 一种信道接入方法, 其特征在于, 包括:
第一接入点 AP关联的站点 STA接收所述第一 AP发送的目标共享信道策 略, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的共享信道 策略和与所述第一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定 的;
所述 STA根据所述目标共享信道策略,确定是否可以在所述第二 AP的传 输机会窗内竞争接入所述信道;
当确定可以在所述第二 AP 的传输机会窗内竞争接入所述信道时, 所述
STA根据所述第二 AP在所述第二 AP的传输机会窗内发送的指示信息, 在所 述第二 AP的传输机会窗内竞争接入所述信道。
30、 根据权利要求 29所述的方法, 其特征在于, 还包括:
所述 STA根据所述第一 AP在所述第一 AP的传输机会窗内发送的指示信 息, 在所述第一 AP的传输机会窗内竞争接入所述信道。
31、 根据权利要求 30所述的方法, 其特征在于, 所述 STA根据所述第一 AP在所述第一 AP的传输机会窗内发送的指示信息, 在所述第一 AP的传输机 会窗内竞争接入所述信道, 包括:
所述 STA分别接收所述第一 AP在所述第一 AP的传输机会窗内发送的第 一起始帧和第一结束帧, 并在所述第一起始帧和所述第一结束帧限定的时间 内竞争接入所述信道; 或者
所述 STA接收所述第一 AP在所述第一 AP的传输机会窗内发送的第二起 始帧, 所述第二起始帧包括所述第一 AP 指示的竞争接入所述信道的时间长 度; 所述 STA自接收到所述第二起始帧开始, 在所述第一 AP指示的时间长度 内竞争接入所述信道; 其中, 所述第一 AP 指示的时间长度不超出所述第一 AP的传输时间窗。
32、 根据权利要求 29-31任一项所述的方法, 其特征在于, 所述 STA根 据所述第二 AP在所述第二 AP的传输机会窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞争接入所述信道, 包括:
所述 STA分别接收所述第二 AP在所述第二 AP的传输机会窗内发送的第 三起始帧和第三结束帧, 并在所述第三起始帧和所述第三结束帧限定的时间 内竞争接入所述信道; 或者
所述 STA接收所述第二 AP在所述第二 AP的传输机会窗内发送的第四起 始帧, 所述第四起始帧包括所述第二 AP 指示的竞争接入所述信道的时间长 度; 所述 STA自接收到所述第四起始帧开始, 在所述第二 AP指示的时间长度 内竞争接入所述信道; 其中, 所述第二 AP 指示的时间长度不超出所述第二 AP的传输时间窗。
33、 一种信道接入方法, 其特征在于, 包括:
第二接入点 AP向与所述第二 AP竞争接入同一信道的第一 AP发送所述第 二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的信 息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会 窗的时间长度和先后顺序;
所述第二 AP接收所述第一 AP发送的所述第一 AP的和所述第二 AP的传 输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信道策 略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的共 享信道策略和所述第二 AP支持的共享信道策略确定的;
所述第二 AP根据所述目标共享信道策略, 确定是否可以在所述第一 AP 的传输机会窗内同时竞争接入所述信道;
当确定可以在所述第一 AP的传输机会窗内同时竞争接入所述信道时,所 述第二 AP根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度和先后 顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内竞争接入 所述信道。
34、 根据权利要求 33所述的方法, 其特征在于, 还包括:
当确定不可以在所述第一 AP的传输机会窗内同时竞争接入所述信道时, 所述第二 AP仅在所述第二 AP的传输机会窗内竞争接入所述信道。
35、 根据权利要求 33或 34所述的方法, 其特征在于, 所述第二 AP接收 所述第一 AP发送的目标共享信道策略之前, 还包括:
所述第二 AP向所述第一 AP发送广播帧,所述广播帧包括所述第二 AP支 持的共享信道策略。
36、 根据权利要求 33-35任一项所述的方法, 其特征在于, 所述第二接 入点 AP向与所述第二 AP竞争接入同一信道的第一 AP发送所述第二 AP的信 息, 包括:
所述第二 AP通过同时处于所述第一 AP和所述第二 AP的覆盖范围内的站 点 STA, 向所述第一 AP发送所述第二 AP的信息。
37、 一种信道接入控制单元, 其特征在于, 包括: 接收模块, 用于接收竞争接入同一信道的每个接入点 AP上报的信息; 第一确定模块, 用于根据所述接收模块接收的所述信息, 确定每个 AP用 于竞争接入所述信道使用的传输机会窗;
第二确定模块, 用于根据预设的共享信道策略, 确定所述第一确定模块 确定的每个 AP的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述 信道;
发送模块, 用于在所述第二确定模块的确定结果为允许时, 将允许其他 AP同时竞争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对 应的 AP和允许同时竞争接入所述信道的其他 AP , 以使所述传输机会窗对应 的 AP所在基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP 所在 BSS内的设备在所述传输机会窗内同时竞争接入所述信道。
38、 根据权利要求 37所述的信道接入控制单元, 其特征在于, 所述发送 模块还用于在所述第二确定模块的确定结果为不允许时,将不允许其他 AP同 时竞争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP , 以使所述传输机会窗对应的 AP所在 BSS内的设备在所述传输机会窗内竞 争接入所述信道。
39、 根据权利要求 37或 38所述的信道接入控制单元, 其特征在于, 所 述第二确定模块具体用于在预设的共享信道策略为 BSS优先级共享策略时, 根据每个 AP所在 BSS的优先级的大小, 确定每个 AP的传输机会窗内是否允 许其他 AP与所述 AP同时竞争接入所述信道; 或者, 在预设的共享信道策略 为商业协议共享策略时, 根据每个 AP遵从的商业协议的代码, 确定每个 AP 的传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道。
40、 根据权利要求 39所述的信道接入控制单元, 其特征在于, 所述第二 确定模块用于在预设的共享信道策略为 BSS优先级共享策略时, 根据每个 AP 所在 BSS的优先级的大小, 确定每个 AP的传输机会窗内是否允许其他 AP与 所述 AP同时竞争接入所述信道, 包括:
所述第二确定模块具体用于根据每个 AP所在 BSS的优先级,确定在每个 AP的传输机会窗内允许所在 BSS的优先级比所述 AP所在 BSS的优先级高的 AP或所在 BSS的优先级和所述 AP所在 BSS的优先级相同的 AP同时竞争接入 所述信道; 所述第二确定模块用于在预设的共享信道策略为商业协议共享策略时, 根据每个 AP遵从的商业协议的代码, 确定每个 AP的传输机会窗内是否允许 其他 AP与所述 AP同时竞争接入所述信道, 包括:
所述第二确定模块具体用于根据每个 AP遵从的商业协议的代码,确定遵 从的商业协议的代码相同的 AP 可以在彼此的传输机会窗内同时竞争接入所 述信道。
41、根据权利要求 37-40任一项所述的信道接入控制单元, 其特征在于, 所述发送模块具体用于将允许其他 AP 同时竞争接入所述信道的传输机会窗 的起始时间和结束时间,发送给所述传输机会窗对应的 AP和允许同时竞争接 入所述信道的其他 AP; 或者
所述发送模块具体用于将允许其他 AP 同时竞争接入所述信道的传输机 会窗的起始时间和时间长度,发送给所述传输机会窗对应的 AP和允许同时竞 争接入所述信道的其他 AP。
42、根据权利要求 37-41任一项所述的信道接入控制单元, 其特征在于, 所述发送模块还用于向每个 AP发送起始帧发送时刻和结束帧发送时刻, 以使 所述 AP在所述起始帧发送时刻向所述 AP所在 BSS内的站点 STA发送第一起 始帧, 并在所述结束帧发送向所述 AP所在 BSS内的 STA发送结束帧, 以指示 所述 AP所在 BSS内的 STA在所述第一起始帧和所述结束帧限定的时间内竞争 接入所述信道; 其中, 所述第一起始帧和所述结束帧限定的时间不超出所述 AP的传输机会窗; 或者
所述发送模块还用于向每个 AP发送起始帧发送时刻和指示每个 AP所在 BSS内的 STA竞争接入所述信道的时间长度, 以使所述 AP在所述起始帧发送 时刻向所述 AP所在 BSS内的站点 STA发送第二起始帧,并在所述第二起始帧 中携带指示所述 STA竞争接入所述信道的时间长度, 以指示所述 AP所在 BSS 内的 STA自所述第二起始帧开始, 在指示所述 STA竞争接入所述信道的时间 长度内竞争接入所述信道; 其中, 指示所述 STA竞争接入所述信道的时间长 度不超出所述 AP的传输机会窗。
43、根据权利要求 37-42任一项所述的信道接入控制单元, 其特征在于, 所述 AP上报的信息包括: 所述 AP所在 BSS的优先级、所述 AP遵从的商业协 议的代码、 所述 AP关联的 STA的数目和所述 AP的负载中的至少一个。
44、根据权利要求 37-43任一项所述的信道接入控制单元, 其特征在于, 所述第一确定模块具体用于根据所述接收模块接收的所述信息, 确定每个 AP 用于竞争接入所述信道使用的传输机会窗的起始时间和结束时间; 或者
所述第一确定模块具体用于根据所述接收模块接收的所述信息, 确定每 个 AP用于竞争接入所述信道使用的传输机会窗的起始时间和时间长度。
45、 根据权利要求 44所述的信道接入控制单元, 其特征在于, 每个 AP 的传输机会窗的时间长度相同; 或者
每个 AP的传输机会窗的时间长度不同。
46、 一种接入点 AP, 其特征在于, 包括:
发送模块, 用于在需要竞争接入信道时, 向信道接入控制单元上报信息, 以使所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确 定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输 机会窗;
接收模块,用于接收所述信道接入控制单元发送的用于指示所述 AP竞争 接入所述信道可以使用的传输机会窗的指示信息;
信道竞争模块, 用于在所述接收模块接收的所述指示信息指示的传输机 会窗内竞争接入所述信道。
47、 根据权利要求 46所述的 AP, 其特征在于, 所述接收模块具体用于 接收所述信道接入控制单元发送的所述传输机会窗的起始时间和结束时间; 或者
所述接收模块具体用于接收所述信道接入控制单元发送的所述传输机会 窗的起始时间和时间长度。
48、 根据权利要求 46或 47所述的 AP , 其特征在于, 还包括:
竞争指示模块, 用于在所述接收模块接收的所述指示信息指示的传输机 会窗内指示所述 AP所在 BSS内的站点 STA竞争接入所述信道。
49、 根据权利要求 48所述的 AP, 其特征在于, 所述竞争指示模块具体 用于在所述信道接入控制单元指示的起始帧发送时刻, 向所述 AP所在 BSS内 的 STA发送指示所述 STA开始竞争接入所述信道的第一起始帧, 并在所述信 道接入控制单元指示的结束帧发送时刻, 向所述 STA发送指示所述 STA停止 竞争接入所述信道的结束帧, 以指示所述 STA在所述第一起始帧和所述结束 帧限定的时间内竞争接入所述信道; 其中, 所述第一起始帧和所述结束帧限 定的时间不超出所述传输机会窗; 或者
所述竞争指示模块具体用于在所述信道接入控制单元指示的起始帧发送 时刻, 向所述 AP所在 BSS内的 STA发送用于指示所述 STA开始竞争接入所述 信道的第二起始帧, 所述第二起始帧携带有所述信道接入控制单元指示的所 述 STA竞争接入所述信道的时间长度, 以指示所述 STA自接收到所述第二起 始帧开始, 在所述信道接入控制单元指示的时间长度内竞争接入所述信道; 其中, 所述信道接入控制单元指示的时间长度不超出所述传输机会窗。
50、 根据权利要求 49所述的 AP, 其特征在于, 所述接收模块还用于接 收所述信道接入控制单元发送的所述起始帧发送时刻和所述结束帧发送时 刻; 或者
所述接收模块还用于接收所述信道接入控制单元发送的所述起始帧发送 时刻和指示所述 STA竞争接入所述信道的时间长度。
51、 一种信道接入装置, 设置于第一接入点 AP 内实现或作为所述第一 AP实现, 其特征在于, 所述装置包括:
获取模块,用于获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一 AP的信息和所述第二 AP的信息,确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会窗的时间长度和先后顺序;
第一确定模块, 用于根据所述第一 AP 支持的共享信道策略和所述第二 AP支持的共享信道策略, 确定所述第一 AP和所述第二 AP共同使用的目标共 享信道策略;
第二确定模块, 用于根据所述第一确定模块确定的所述目标共享信道策 略, 确定是否可以在所述第二 AP的传输机会窗内同时竞争接入所述信道; 信道竞争模块,用于在所述第二确定模块确定可以在所述第二 AP的传输 机会窗内同时竞争接入所述信道时, 根据所述第一 AP的和所述第二 AP的传 输机会窗的时间长度和先后顺序, 在所述第一 AP 的传输机会窗和所述第二 AP的传输机会窗内竞争接入所述信道。
52、 根据权利要求 51所述的装置, 其特征在于, 所述信道竞争模块还用 于在所述第二确定模块确定不可以在所述第二 AP 的传输机会窗内同时竞争 接入所述信道时, 仅在所述第一 AP的传输机会窗内竞争接入所述信道。
53、 根据权利要求 51或 52所述的装置, 其特征在于, 还包括: 接收模块, 用于在所述第一确定模块确定所述目标共享信道策略之前, 接收所述第二 AP发送的广播帧, 所述广播帧包括所述第二 AP支持的共享信 道策略。
54、 根据权利要求 51-53任一项所述的装置, 其特征在于, 所述目标共 享信道策略为基本服务集 BSS优先级共享策略;
所述第二确定模块具体用于根据所述第一 AP所在 BSS的优先级和所述第 二 AP所在 BSS的优先级的大小, 确定是否可以在所述第二 AP的传输机会窗 内同时竞争接入所述信道。
55、 根据权利要求 54所述的装置, 其特征在于, 所述第二确定模块具体 用于在所述第二 AP所在 BSS的优先级低于或等于所述第一 AP所在 BSS的优 先级时, 确定可以在所述第二 AP的传输机会窗内同时竞争接入所述信道。
56、 根据权利要求 51-53任一项所述的装置, 其特征在于, 所述目标共 享信道策略为商业协议共享策略;
所述第二确定模块具体用于根据所述第一 AP 遵从的商业协议的代码和 所述第二 AP遵从的商业协议的代码, 确定是否可以在所述第二 AP的传输机 会窗内同时竞争接入所述信道。
57、 根据权利要求 56所述的装置, 其特征在于, 所述第二确定模块具体 用于在所述第一 AP遵从的商业协议的代码和所述第二 AP遵从的商业协议的 代码相同时, 确定可以在所述第二 AP 的传输机会窗内同时竞争接入所述信 道。
58、 根据权利要求 51-57任一项所述的装置, 其特征在于, 还包括: 第一竞争指示模块, 用于在所述第一 AP 的传输机会窗内指示所述第一
AP所在 BSS内的站点 STA竞争接入所述信道。
59、 根据权利要求 58所述的装置, 其特征在于, 所述第一竞争指示模块 具体用于在所述第一 AP的传输机会窗内分别向所述 STA发送起第一始帧和结 束帧, 以指示所述 STA在所述第一起始帧和所述结束帧限定的时间内竞争接 入所述信道; 或者
所述第一竞争指示模块具体用于在所述第一 AP 的传输机会窗内向所述 STA发送第二起始帧, 所述第二起始帧携带有所述第一 AP指示所述 STA竞争 接入所述信道的时间长度, 以指示所述 STA 自接收到所述第二起始帧开始, 在所述第一 AP指示的时间长度内竞争接入所述信道; 其中, 所述第一 AP指 示的时间长度不超出所述第一 AP的传输机会窗。
60、 根据权利要求 51-59任一项所述的装置, 其特征在于, 还包括: 第一发送模块, 用于将所述目标共享信道策略发送给所述第一 AP 所在
BSS内的 STA, 以使所述 STA根据所述目标共享信道策略确定是否可以在所述 第二 AP的传输机会窗内竞争接入所述信道; 或者, 用于向所述 STA发送信道 共享消息, 所述信道共享消息包括所述第二 AP的标识, 以指示所述 STA可以 在所述第二 AP的传输机会窗内竞争接入所述信道。
61、 根据权利要求 51-60任一项所述的装置, 其特征在于, 所述信道竞 争模块具体用于根据所述第一 AP的和所述第二 AP的传输机会窗的时间长度 和先后顺序, 分别确定所述第一 AP的传输机会窗和所述第二 AP的传输机会 窗, 并按照所述第一 AP的和所述第二 AP的传输机会窗的先后顺序, 依次在 所述第一 AP的和所述第二 AP的传输机会窗内竞争接入所述信道; 或者
所述信道竞争模块具体用于根据所述第一 AP的和所述第二 AP的传输机 会窗的时间长度和先后顺序, 确定所述第一 AP的传输机会窗, 并根据所述第 二 AP的传输机会窗的时间长度和所述第二 AP发送的用于指示所述第二 AP的 传输机会窗开始的起始帧, 确定所述第二 AP 的传输机会窗, 按照所述第一 AP的和所述第二 AP的传输机会窗的先后顺序, 依次在所述第一 AP的和所述 第二 AP的传输机会窗内竞争接入所述信道。
62、 根据权利要求 51-61任一项所述的装置, 其特征在于, 还包括: 第二发送模块, 用于将所述第一 AP的和所述第二 AP的传输机会窗的时 间长度和先后顺序, 发送给所述第二 AP, 并将所述目标共享信道策略发送给 所述第二 AP, 以使所述第二 AP确定是否在所述第一 AP的传输机会窗内同时 竞争接入所述信道。
63、 根据权利要求 51-62任一项所述的装置, 其特征在于, 所述获取模 块具体用于接收同时处于所述第一 AP和所述第二 AP的覆盖范围内的 STA发 送的所述第二 AP的信息。
64、 根据权利要求 51-63任一项所述的装置, 其特征在于, 还包括: 第二竞争指示模块, 用于在所述第二 AP 的传输机会窗内指示所述第一 AP所在 BSS内的 STA竞争接入所述信道。
65、 一种站点 STA, 所述 STA关联于所述第一接入点 AP, 其特征在于, 所述 STA包括:
接收模块, 用于接收所述第一 AP发送的目标共享信道策略, 所述目标共 享信道策略是所述第一 AP根据所述第一 AP支持的共享信道策略和与所述第 一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定的;
确定模块, 用于根据所述接收模块接收的所述目标共享信道策略, 确定 是否可以在所述第二 AP的传输机会窗内竞争接入所述信道;
信道竞争模块,用于在所述确定模块确定可以在所述第二 AP的传输机会 窗内竞争接入所述信道时, 根据所述第二 AP在所述第二 AP的传输机会窗内 发送的指示信息, 在所述第二 AP的传输机会窗内竞争接入所述信道。
66、 根据权利要求 65所述的 STA, 其特征在于, 所述信道竞争模块还用 于根据所述第一 AP在所述第一 AP的传输机会窗内发送的指示信息, 在所述 第一 AP的传输机会窗内竞争接入所述信道。
67、 根据权利要求 66所述的 STA, 其特征在于, 所述信道竞争模块用于 根据所述第一 AP在所述第一 AP的传输机会窗内发送的指示信息, 在所述第 一 AP的传输机会窗内竞争接入所述信道, 包括:
所述信道竞争模块具体用于分别接收所述第一 AP在所述第一 AP的传输 机会窗内发送的第一起始帧和第一结束帧, 在所述第一起始帧和所述第一结 束帧限定的时间内竞争接入所述信道; 或者
所述信道竞争模块具体用于接收所述第一 AP在所述第一 AP的传输机会 窗内发送的第二起始帧, 自接收到所述第二起始帧开始, 在所述第一 AP指示 的时间长度内竞争接入所述信道; 其中, 所述第二起始帧包括所述第一 AP指 示的竞争接入所述信道的时间长度,所述第一 AP指示的时间长度不超出所述 第一 AP的传输时间窗。
68、 根据权利要求 65-67任一项所述的 STA, 其特征在于, 所述信道竞 争模块用于根据所述第二 AP在所述第二 AP的传输机会窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞争接入所述信道, 包括:
所述信道竞争模块具体用于分别接收所述第二 AP在所述第二 AP的传输 机会窗内发送的第三起始帧和第三结束帧, 在所述第三起始帧和所述第三结 束帧限定的时间内竞争接入所述信道; 或者
所述信道竞争模块具体用于接收所述第二 AP在所述第二 AP的传输机会 窗内发送的第四起始帧, 自接收到所述第四起始帧开始, 在所述第二 AP指示 的时间长度内竞争接入所述信道; 其中, 所述第四起始帧包括所述第二 AP指 示的竞争接入所述信道的时间长度,所述第二 AP指示的时间长度不超出所述 第二 AP的传输时间窗。
69、 一种信道接入装置, 设置于第二接入点 AP 内实现或作为所述第二 AP实现, 其特征在于, 所述装置包括:
发送模块, 用于向与所述第二 AP竞争接入同一信道的第一 AP发送所述 第二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的 信息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机 会窗的时间长度和先后顺序;
接收模块,用于接收所述第一 AP发送的所述第一 AP的和所述第二 AP的 传输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信道 策略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的 共享信道策略和所述第二 AP支持的共享信道策略确定的;
确定模块, 用于根据所述接收模块接收的所述目标共享信道策略, 确定 是否可以在所述第一 AP的传输机会窗内同时竞争接入所述信道;
信道竞争模块,用于在所述确定模块确定可以在所述第一 AP的传输机会 窗内同时竞争接入所述信道时, 根据所述第一 AP的和所述第二 AP的传输机 会窗的时间长度和先后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的 传输机会窗内竞争接入所述信道。
70、 根据权利要求 69所述的装置, 其特征在于, 所述信道竞争模块还用 于在所述确定模块确定不可以在所述第一 AP 的传输机会窗内同时竞争接入 所述信道时, 仅在所述第二 AP的传输机会窗内竞争接入所述信道。
71、 根据权利要求 69或 70所述的装置, 其特征在于, 所述发送模块还 用于在所述接收模块接收所述目标共享信道策略之前, 向所述第一 AP发送广 播帧, 所述广播帧包括所述第二 AP支持的共享信道策略。
72、 根据权利要求 69-71任一项所述的装置, 其特征在于, 所述发送模 块具体用于通过同时处于所述第一 AP 和所述第二 AP 的覆盖范围内的站点 STA, 向所述第一 AP发送所述第二 AP的信息。
73、 一种信道接入控制单元, 其特征在于, 包括:
接收器, 用于接收竞争接入同一信道的每个接入点 AP上报的信息; 处理器, 用于根据所述接收器接收的所述信息, 确定每个 AP用于竞争接 入所述信道使用的传输机会窗, 并根据预设的共享信道策略, 确定每个 AP的 传输机会窗内是否允许其他 AP与所述 AP同时竞争接入所述信道;
发射器, 用于在所述处理器的确定结果为允许时, 将允许其他 AP同时竞 争接入所述信道的传输机会窗的指示信息发送给所述传输机会窗对应的 AP 和允许同时竞争接入所述信道的其他 AP, 以使所述传输机会窗对应的 AP所 在基本服务集 BSS内的设备和允许同时竞争接入所述信道的其他 AP所在 BSS 内的设备在所述传输机会窗内同时竞争接入所述信道。
74、 一种接入点 AP, 其特征在于, 包括:
发射器, 用于在需要竞争接入信道时, 向信道接入控制单元上报信息, 以使所述信道接入控制单元根据所有竞争接入所述信道的 AP上报的信息,确 定所有竞争接入所述信道的 AP中每个 AP用于竞争接入所述信道使用的传输 机会窗;
接收器,用于接收所述信道接入控制单元发送的用于指示所述 AP竞争接 入所述信道可以使用的传输机会窗的指示信息;
处理器, 用于在所述接收器接收的所述指示信息指示的传输机会窗内竞 争接入所述信道。
75、 一种信道接入装置, 设置于第一接入点 AP 内实现或作为所述第一 AP实现, 其特征在于, 所述装置包括:
存储器, 用于存储程序;
处理器, 用于执行处理所述程序, 以用于:
获取与所述第一 AP竞争接入同一信道的第二 AP的信息, 根据所述第一
AP的信息和所述第二 AP的信息, 确定所述第一 AP和所述第二 AP竞争接入 所述信道分别使用的传输机会窗的时间长度和先后顺序, 并根据所述第一 AP 支持的共享信道策略和所述第二 AP支持的共享信道策略, 确定所述第一 AP 和所述第二 AP共同使用的目标共享信道策略,并根据所述第一确定模块确定 的所述目标共享信道策略,确定是否可以在所述第二 AP的传输机会窗内同时 竞争接入所述信道, 以及在确定可以在所述第二 AP的传输机会窗内同时竞争 接入所述信道时, 根据所述第一 AP的和所述第二 AP的传输机会窗的时间长 度和先后顺序, 在所述第一 AP的传输机会窗和所述第二 AP的传输机会窗内 竞争接入所述信道。
76、 一种站点 STA, 所述 STA关联于所述第一接入点 AP , 其特征在于, 所述 STA包括:
接收器, 用于接收所述第一 AP发送的目标共享信道策略, 所述目标共享 信道策略是所述第一 AP根据所述第一 AP支持的共享信道策略和与所述第一 AP竞争接入同一信道的第二 AP支持的共享信道策略确定的;
处理器, 用于根据所述接收器接收的所述目标共享信道策略, 确定是否 可以在所述第二 AP的传输机会窗内竞争接入所述信道, 以及在确定可以在所 述第二 AP的传输机会窗内竞争接入所述信道时, 根据所述第二 AP在所述第 二 AP的传输机会窗内发送的指示信息, 在所述第二 AP的传输机会窗内竞争 接入所述信道。
77、 一种信道接入装置, 设置于第二接入点 AP 内实现或作为所述第二
AP实现, 其特征在于, 所述装置包括:
发射器, 用于向与所述第二 AP竞争接入同一信道的第一 AP发送所述第 二 AP的信息, 以使所述第一 AP根据所述第一 AP的信息和所述第二 AP的信 息, 确定所述第一 AP和所述第二 AP竞争接入所述信道分别使用的传输机会 窗的时间长度和先后顺序;
接收器,用于接收所述第一 AP发送的所述第一 AP的和所述第二 AP的传 输机会窗的时间长度和先后顺序,并接收所述第一 AP发送的目标共享信道策 略; 其中, 所述目标共享信道策略是所述第一 AP根据所述第一 AP支持的共 享信道策略和所述第二 AP支持的共享信道策略确定的;
处理器, 用于根据所述接收器接收的所述目标共享信道策略, 确定是否 可以在所述第一 AP的传输机会窗内同时竞争接入所述信道, 以及在确定可以 在所述第一 AP的传输机会窗内同时竞争接入所述信道时, 根据所述第一 AP 的和所述第二 AP的传输机会窗的时间长度和先后顺序, 在所述第一 AP的传 输机会窗和所述第二 AP的传输机会窗内竞争接入所述信道。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108370590A (zh) * 2016-06-01 2018-08-03 华为技术有限公司 信道竞争方法及装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112367709B (zh) * 2020-10-30 2022-07-29 新华三技术有限公司 一种信道控制方法、装置及设备
CN116133147A (zh) * 2021-11-12 2023-05-16 华为技术有限公司 数据传输方法及装置、存储介质、程序产品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102413582A (zh) * 2012-01-06 2012-04-11 北京邮电大学 一种中心控制的802.11无线网络信道接入的方法
CN102802171A (zh) * 2011-05-25 2012-11-28 华为技术有限公司 用于无线通信系统的退避方法和退避设备
CN102958185A (zh) * 2011-08-17 2013-03-06 华为技术有限公司 一种竞争窗口的更新方法和一种接入点
US20130314694A1 (en) * 2010-04-20 2013-11-28 Michigan Aerospace Corporation Atmospheric measurement system and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7539168B2 (en) * 2003-02-03 2009-05-26 Avaya Inc. Emergency call handling in contention-based wireless local-area networks
EP1694088A1 (en) * 2005-02-22 2006-08-23 Alcatel A method for admission control for mobile networks, an admission controller and a communication system therewith
CN101127661B (zh) * 2007-09-18 2010-07-14 重庆邮电大学 一种基于拥塞程度概率p的无线竞争接入控制方法
US8306050B2 (en) * 2009-01-30 2012-11-06 Texas Instruments Incorporated Smart adjustment of backoff counter and contention window for improved random access
US20120314694A1 (en) * 2011-06-07 2012-12-13 Jing-Rong Hsieh Method of Back-off Procedure Setup in a Wireless Communication System
CN103096439B (zh) * 2011-11-07 2018-04-27 中兴通讯股份有限公司 站点的调度方法、数据传输方法、接入控制站点及站点
CN103298027B (zh) * 2012-02-24 2016-09-14 华为技术有限公司 一种控制网络拥塞的方法、装置和网络系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130314694A1 (en) * 2010-04-20 2013-11-28 Michigan Aerospace Corporation Atmospheric measurement system and method
CN102802171A (zh) * 2011-05-25 2012-11-28 华为技术有限公司 用于无线通信系统的退避方法和退避设备
CN102958185A (zh) * 2011-08-17 2013-03-06 华为技术有限公司 一种竞争窗口的更新方法和一种接入点
CN102413582A (zh) * 2012-01-06 2012-04-11 北京邮电大学 一种中心控制的802.11无线网络信道接入的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108370590A (zh) * 2016-06-01 2018-08-03 华为技术有限公司 信道竞争方法及装置
CN108370590B (zh) * 2016-06-01 2020-10-09 华为技术有限公司 信道竞争方法及装置

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