WO2016161547A1 - 一种待接收指示消息传输方法及装置 - Google Patents

一种待接收指示消息传输方法及装置 Download PDF

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Publication number
WO2016161547A1
WO2016161547A1 PCT/CN2015/075968 CN2015075968W WO2016161547A1 WO 2016161547 A1 WO2016161547 A1 WO 2016161547A1 CN 2015075968 W CN2015075968 W CN 2015075968W WO 2016161547 A1 WO2016161547 A1 WO 2016161547A1
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Prior art keywords
received
message
site
indication
group
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PCT/CN2015/075968
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English (en)
French (fr)
Inventor
树贵明
丁志明
乔登宇
杜振国
李彦淳
蓝洲
李云波
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/075968 priority Critical patent/WO2016161547A1/zh
Priority to CN201580006330.4A priority patent/CN106233790B/zh
Publication of WO2016161547A1 publication Critical patent/WO2016161547A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting an indication message to be received.
  • the station In a wireless local area network, in order to save power, the station usually operates in a power saving mode. When the station operates in the power saving mode, its working state alternates between an Awake state and a Doze state according to certain rules. When in the Doze state, the site's power consumption can be reduced to a low level, but it cannot receive messages sent by the access point.
  • the current wireless fidelity (WiFi, WIreless-FIdelity) 802.11 standard defines a data transmission indication map (TIM) downlink data transmission mechanism.
  • TIM data transmission indication map
  • a station operating in a power saving mode needs to periodically wake up to receive a broadcast message broadcast by an access point, and the access point indicates to the station whether there is cached data waiting through a TIM field in a broadcast message periodically broadcasted.
  • the TIM field is composed of a plurality of binary bits, and the serial number of each binary bit corresponds to an association identifier (AID, Association identifier) of the site.
  • the site indicating the corresponding AID is cached at the access point.
  • Data when the station finds that there is cached data at the access point through the broadcast message, after receiving the broadcast message, it sends a power-saving poll to the access point in a freely competitive manner in the idle channel (PS-Poll). , Power Save poll) to receive the indication message, and then in the awake state, waiting to receive the data sent by the access point, until after receiving the data, then enter the power-saving sleep state.
  • the access point may set multiple indication bits in the TIM to "1", and simultaneously indicate cached data to multiple sites, in which case multiple sites will simultaneously be in a freely competitive channel manner.
  • the access point sends a PS-Poll message, where the general process of the channel free competition mechanism is: the station first listens to whether the channel is idle, and if the channel idle time exceeds a certain time (such as AIFS, arbitration interframe space, arbitration frame interval), the station Start a backoff mechanism, that is, randomly select a backoff time value (in units of Time slot) between the set minimum backoff time and the maximum backoff time, and start a countdown timer clock (in units of Time slot) when the channel is idle. When the accumulated time reaches the backoff time value selected by the station, the countdown timer clock is reduced to 0, and the triggering station sends a PS-Poll message to the access point.
  • a certain time such as AIFS, arbitration interframe space, arbitration frame interval
  • the embodiment of the invention provides a method and a device for transmitting an indication message to be received, which are used for synchronously sending a to-receive indication message to an access point.
  • the method for transmitting an indication message to be received according to the first aspect of the present invention includes:
  • the access point sends a broadcast message, where the broadcast message includes: the to-be-transmitted indication bitmap TIM information, the first to-be-received site group information, and the first trigger message, the sending time information, where the first to-be-received site group corresponds to the first a triggering message, the first triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the first group of to-be-received stations simultaneously sends a to-be-received indication message to the access point; a station indicating downlink data in the TIM;
  • the access point receives a to-be-received indication message sent by at least one of the first to-be-received station groups according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the to-be-received site group information includes:
  • the identification information of the to-be-received site of the to-be-received site group or the identification information of the to-be-received site at the end of the to-be-received site group.
  • the broadcast message further includes:
  • the number of sites to be received included in the group to be received is the number of sites to be received included in the group to be received.
  • the first trigger message includes:
  • the sending time information of the second triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the second group of to-be-received stations simultaneously sends a to-be-received indication message to the access point.
  • the first trigger message includes: first to-be-received site group indication information;
  • the first to-be-received site group indication information includes: a first initial association identifier or a first to-be-received station Point group identification information, where the first initial association identifier is an association identifier of a to-be-received site with the smallest association identifier in the first to-be-received site group;
  • the first to-be-received site group indication information includes a site type indication bit table, where each bit in the site type indication bit table corresponds to one of the first to-be-received site groups, the site type indication Each bit in the bit table is used to indicate whether the corresponding to-be-received station can send the to-be-received indication message.
  • the first to-be-received site group indication information includes: a channel indicating a to-be-received indication message corresponding to the first to-be-received site group Resource allocation information.
  • the first trigger message includes:
  • the to-be-received station sends a channel resource unit to receive the indication message.
  • the to-be-received station receives the broadcast message sent by the access point, where the broadcast message includes: the to-be-transmitted indication bitmap TIM information, the first to-be-received site group information, and the first trigger message transmission time information, where the first to-be-received site
  • the first trigger message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the first group of to-be-received stations sends a to-be-received indication message to the access point at the same time; Treating the receiving station as a station indicating downlink data in the TIM;
  • the to-be-received station wakes up when the trigger message corresponding to the to-be-received site is sent according to the sending time information of the first triggering message, and receives a trigger message corresponding to the to-be-received site;
  • the to-be-received station sends a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site and using a multi-user transmission mechanism.
  • the method before the receiving the trigger message corresponding to the to-be-received site, the method includes:
  • the to-be-received station determines the to-be-set according to the TIM and the first to-be-received site group information. Receiving a site group to be received corresponding to the station and a trigger message;
  • the to-be-received station wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message;
  • the to-be-received station determines that the first trigger message is a trigger message corresponding to the to-be-received site, and sends a to-be-received indication message to the access point by using a multi-user transmission mechanism.
  • the broadcast message further includes: to-be-received site group information corresponding to each to-be-received site group except the first to-be-received site group;
  • the method Before receiving the trigger message corresponding to the to-be-received site, the method includes:
  • the first triggering message includes: sending time information of the second triggering message, where the second triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the second group of to-be-received stations simultaneously sends the information to the access point. Waiting to receive an indication message;
  • the to-be-received station wakes up when the triggering message corresponding to the to-be-received site is sent, and receives the triggering message corresponding to the to-be-received site, including:
  • the to-be-received station wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message;
  • the to-be-received station determines whether the first trigger message is a trigger message corresponding to the to-be-received site, and if yes, sends a to-be-received indication message to the access point by using a multi-user transmission mechanism; if not, the to-be-received message
  • the station receives the trigger message corresponding to the second group to be received according to the sending time information of the second trigger message included in the first trigger message.
  • the first trigger message includes: first to-be-received site group indication information and second-trigger message transmission time information, where the second triggering message is used to indicate that the second to-be-received site group supports the multi-user transmission mechanism to be received. Sending, by the station, the indication message to be received to the access point;
  • the to-be-received station wakes up when the triggering message corresponding to the to-be-received site is sent, and receives the triggering message corresponding to the to-be-received site, including:
  • the to-be-received station is in the first trigger message according to the sending time information of the first trigger message. Wake up when sending, and receive the first trigger message;
  • the to-be-received station determines whether the first trigger message includes the to-be-received site group indication information corresponding to the to-be-received site, and if not, the to-be-received site according to the first trigger message Sending time information of the second trigger message, receiving a trigger message corresponding to the second group to be received; if yes, sending a to-be-received indication message to the access point by using a multi-user transmission mechanism.
  • the first trigger message includes: first to-be-received site group indication information, where the first to-be-received site group indication information includes allocation information indicating channel resources of the to-be-received indication message corresponding to the first to-be-received site group;
  • the to-be-received station sends a to-be-received indication message to the access point by using a multi-user transmission mechanism according to the trigger message corresponding to the to-be-received site, including:
  • the to-be-received station sends the to-be-received indication message to the access point by using the channel resource.
  • the first trigger message includes: first channel resource indication information, first to-be-received site group indication information;
  • the channel resource indication information is the indication information of the channel resource to be received by the first to-be-received station group, and the channel resource includes the to-be-received station for the first to-be-received station group to send the to-be-received indication message.
  • the first to-be-received site group indication information includes allocation information indicating a channel resource for transmitting a to-be-received indication message corresponding to the first to-be-received site group;
  • the to-be-received station sends a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and uses a multi-user transmission mechanism, including:
  • the to-be-received station sends the to-be-received indication message to the access point by using the channel resource.
  • a broadcast message sent by the access point includes: an indication to be transmitted The transmission time information of the bitmap TIM information, the at least two to-be-received site group information, and the trigger message corresponding to the at least two to-be-received site groups, where the first to-be-received site group corresponds to the first trigger message;
  • the triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the first group of to-be-received stations simultaneously sends an indication to be received to the access point; the to-be-received station indicates that the downlink is in the TIM. Site of data;
  • the to-be-received station wakes up when the trigger message corresponding to the to-be-received site is sent according to the sending time information of the trigger message corresponding to the at least two to-be-received site groups, and receives the trigger message corresponding to the to-be-received site;
  • the to-be-received station sends a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site and using a multi-user transmission mechanism.
  • the first trigger message includes: first to-be-received site group indication information, where the first to-be-received site group indication information includes allocation information indicating channel resources of the to-be-received indication message corresponding to the first to-be-received site group;
  • the to-be-received station sends a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and uses a multi-user transmission mechanism, including:
  • the to-be-received station sends the to-be-received indication message to the access point by using the channel resource.
  • the first trigger message includes: first channel resource indication information, first to-be-received site group indication information;
  • the channel resource indication information is the indication information of the channel resource to be received by the first to-be-received station group, and the channel resource for sending the to-be-received indication message includes the to-be-received site for the first to-be-received site group. Transmitting a channel resource unit to receive an indication message;
  • the first to-be-received site group indication information includes allocation information indicating a channel resource for transmitting a to-be-received indication message corresponding to the first to-be-received site group;
  • the to-be-received station sends a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and uses a multi-user transmission mechanism, including:
  • the to-be-received station sends the to-be-received indication message to the access point by using the channel resource.
  • a sending unit configured to send a broadcast message, where the broadcast message includes: a bitmap to be transmitted TIM information, a first to-be-received site group information, and a sending time information of the first triggering message, where the first to-be-received site group corresponds to
  • the first trigger message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the first group of to-be-received stations simultaneously sends a to-be-received indication message to the access point;
  • the to-be-received The site is a site indicating downlink data in the TIM;
  • the sending unit is further configured to send the first trigger message according to the sending time information of the first trigger message
  • the receiving unit is configured to receive a to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the to-be-received site group information includes:
  • the identification information of the to-be-received site of the to-be-received site group or the identification information of the to-be-received site at the end of the to-be-received site group.
  • the broadcast message further includes:
  • the number of sites to be received included in the group to be received is the number of sites to be received included in the group to be received.
  • the first trigger message includes:
  • the sending time information of the second triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the second group of to-be-received stations simultaneously sends a to-be-received indication message to the access point.
  • the first trigger message includes: first to-be-received site group indication information;
  • the first to-be-received site group indication information includes: a first initial association identifier or a first to-be-received site group identifier information, where the first initial association identifier is a minimum to-be-identified identifier in the first to-be-received site group. Receive the associated identifier of the site;
  • the first to-be-received site group indication information includes: a site type indication bit table, and the site type Each bit in the indication bit table corresponds to one of the first to-be-received site groups, and each bit in the site type indication bit table is used to indicate whether the corresponding to-be-received site can send the to-be-received site. Receive an indication message.
  • the first to-be-received site group indication information further includes a channel indicating that the first to-be-received site group corresponds to the to-be-received indication message Resource allocation information.
  • the first trigger message includes:
  • the to-be-received station sends a channel resource unit to receive the indication message.
  • a message receiving unit configured to receive a broadcast message sent by the access point, where the broadcast message includes: a to-be-transmitted indication bitmap TIM information, a first to-be-received site group information, and a first trigger message sending time information, where the first The to-be-received site group corresponds to the first triggering message; the first triggering message is used to indicate that the to-be-received site supporting the multi-user transmission mechanism in the first to-be-received site group simultaneously sends an indication to be received to the access point.
  • the to-be-received site is a site indicating downlink data in the TIM;
  • the message receiving unit is further configured to wake up according to the sending time information of the first trigger message, and receive a trigger message corresponding to the trigger message sent by the corresponding trigger message;
  • a message sending unit configured to send, by using a multi-user transmission mechanism, a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site.
  • a first determining unit configured to determine, according to the TIM and the first to-be-received site group information, a to-be-received site group and a trigger message corresponding to the to-be-received site.
  • the broadcast message further includes: to-be-received site group information corresponding to at least two to-be-received site groups except the first to-be-received site group;
  • the site also includes:
  • a second determining unit configured to determine, according to the to-be-received site group information corresponding to the TIM and the at least two to-be-received site groups, the to-be-received site group and the trigger message corresponding to the to-be-received site;
  • the site further includes: a first determining unit
  • the first triggering message includes: sending time information of the second triggering message, where the second triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the second group of to-be-received stations simultaneously sends the information to the access point. Waiting to receive an indication message;
  • the first determining unit is configured to determine, according to the sending time information of the first trigger message, that the first triggering message is sent after the first triggering message is sent and the first triggering message is received, Whether the message is a trigger message corresponding to the to-be-received site;
  • the message sending unit is specifically configured to send, according to the trigger message corresponding to the to-be-received site, a multi-user transmission mechanism to the access point, when the first trigger message is a trigger message corresponding to the to-be-received site Waiting to receive an indication message;
  • the message receiving unit is further configured to: when the first trigger message is not the trigger message corresponding to the to-be-received site, receive the second to be received according to the sending time information of the second trigger message in the first trigger message The trigger message corresponding to the site group.
  • the site further includes: a second determining unit
  • the first trigger message includes: first to-be-received site group indication information and second-trigger message transmission time information, where the second triggering message is used to indicate that the second to-be-received site group supports the multi-user transmission mechanism to be received. Sending, by the station, the indication message to be received to the access point;
  • the second determining unit is configured to determine, according to the sending time information of the first trigger message, that the first trigger is triggered after the first trigger message is sent and the first trigger message is received, And the message sending unit is configured to: when the first trigger message includes the to-be-received site group indication information corresponding to the to-be-received site, And sending, by the multi-user transmission mechanism, a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site;
  • the message receiving unit is further configured to: when the first trigger message does not include the to-be-received site group indication information corresponding to the to-be-received site, according to the sending time information of the second trigger message in the first trigger message Receiving a trigger message corresponding to the second group to be received.
  • the site further includes: a first channel determining unit;
  • the first trigger message includes: first to-be-received site group indication information, where the first to-be-received site group indication information includes allocation information indicating channel resources of the to-be-received indication message corresponding to the first to-be-received site group;
  • the first channel determining unit is configured to determine, by the first to-be-received site group indication information, that the to-be-received station sends the channel resource corresponding to the to-be-received indication message,
  • the message sending unit is specifically configured to: send the to-be-received indication message to the access point by using the channel resource determined by the first channel determining unit.
  • the site further includes: a second channel determining unit;
  • the first trigger message includes: first channel resource indication information, first to-be-received site group indication information;
  • the first channel resource indication information is the indication information of the channel resource to be received by the first to-be-received station group, and the channel resource for sending the indication information to be received includes the to-be-received station group.
  • the first to-be-received site group indication information includes allocation information indicating a channel resource for transmitting a to-be-received indication message corresponding to the first to-be-received site group;
  • the second channel determining unit determines, according to the first channel resource indication information and the first to-be-received site group indication information, that the to-be-received station sends the channel resource corresponding to the to-be-received indication message;
  • the message sending unit is specifically configured to: use the channel resource determined by the second channel determining unit, and send a to-be-received indication message to the access point by using a multi-user transmission mechanism.
  • the message receiving unit is configured to receive a broadcast message sent by the access point, where the broadcast message includes: at least two to-be-received site group information to be transmitted indication bitmap TIM information, and a trigger message corresponding to at least two to-be-received site groups Time information, where the first to-be-received site group corresponds to the first trigger message; the first trigger message is used to indicate that the to-be-received site supporting the multi-user transmission mechanism in the first to-be-received site group simultaneously reports to the
  • the access point sends a to-be-received indication message; the to-be-received site is at a station in the TIM indicating downlink data;
  • the message receiving unit is further configured to: wake up according to the sending time information of the trigger message corresponding to the at least two groups of the to-be-received station, and send the trigger message corresponding to the to-be-received site to be awakened, and receive the corresponding to the receiving station.
  • Trigger message
  • the message sending unit is configured to send a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and using a multi-user transmission mechanism.
  • the site further includes: a first channel determining unit;
  • the first trigger message includes: first to-be-received site group indication information, where the first to-be-received site group indication information includes allocation information indicating channel resources of the to-be-received indication message corresponding to the first to-be-received site group;
  • the first channel determining unit is configured to determine, according to the first to-be-received site group indication information, that the to-be-received station sends the channel resource corresponding to the to-be-received indication message;
  • the message sending unit is specifically configured to: use the channel resource determined by the first channel determining unit, and send a to-be-received indication message to the access point by using a multi-user transmission mechanism.
  • the site further includes: a second channel determining unit;
  • the first trigger message includes: first channel resource indication information, first to-be-received site group indication information;
  • the first channel resource indication information indicates that the first to-be-received site group sends the indication information of the channel resource to receive the indication message, and the channel resource for sending the to-be-received indication message includes the to-be-received for the first to-be-received site group.
  • the station sends a channel resource unit to receive the indication message;
  • the first to-be-received site group indication information includes allocation information indicating a channel resource for transmitting a to-be-received indication message corresponding to the first to-be-received site group;
  • the second channel determining unit determines, according to the channel resource indication information and the first to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station;
  • the message sending unit is specifically configured to: use the multi-user transmission mechanism to send a to-be-received indication message to the access point by using the channel resource determined by the second channel determining unit.
  • the processor is configured to send, by using the transmitter, a broadcast message, where the broadcast message includes: a to-be-transmitted indication bitmap TIM information, a first to-be-received site group information, and a first trigger message, where the first to be sent
  • the receiving station group corresponds to the first trigger message;
  • the first triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the first group of to-be-received stations simultaneously sends an indication to be received to the access point.
  • the to-be-received station is a station that indicates downlink data in the TIM; and sends the first trigger message according to the sending time information of the first trigger message;
  • the processor is further configured to receive, by the receiver, a to-be-received indication message that is sent by the at least one to-be-received station in the first group of to-be-received stations according to the first trigger message and sent by using a multi-user transmission mechanism.
  • a station provided by the eighth aspect of the embodiments of the present invention includes: a transmitter, a receiver, and a processor;
  • the processor is configured to receive, by using the receiver, a broadcast message sent by an access point, where the broadcast message includes: a to-be-transmitted indication bitmap TIM information, a first to-be-received site group information, and a sending time information of the first trigger message, where The first to-be-received site group corresponds to the first trigger message, and the first triggering message is used to indicate that the to-be-received site supporting the multi-user transmission mechanism in the first to-be-received site group is simultaneously to the access point.
  • the to-be-received site is a site indicating downlink data in the TIM; and according to the sending time information of the first triggering message, wake up when receiving the trigger message corresponding to itself, and receive the self Corresponding trigger message;
  • the processor is configured to send, by the transmitter, a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and using a multi-user transmission mechanism.
  • a station provided by a ninth aspect of the embodiments of the present invention includes: a transmitter, a receiver, and a processor;
  • the processor is configured to receive, by the receiver, a broadcast message sent by an access point, where the broadcast message includes: to be transmitted indication bitmap TIM information, at least two to-be-received site group information, and at least two to-be-received site groups corresponding to The sending time information of the triggering message, wherein the first to-be-received station group corresponds to the first triggering message; the first triggering message is used to indicate that the first to-be-received station group supports the multi-user transmission mechanism to be received
  • the station simultaneously sends a to-be-received indication message to the access point; the to-be-received site is a site that indicates downlink data in the TIM; and according to the sending time information of the trigger message corresponding to the trigger message Wake up when sending, and receive your own trigger message;
  • the processor is configured to send, by the transmitter, a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and using a multi-user transmission mechanism.
  • the radio channel spectrum of the working between the access point and the station is divided into multiple sub-channels.
  • the broadcast message includes the first to-be-received station group information.
  • the sending time information of the first triggering message where the first to-be-received station group information is used to indicate the grouping information of the to-be-received station in the first to-be-received station group, where one subchannel in the radio channel spectrum can be A to-be-received site in a group of to-be-received sites that supports multiple user mechanisms is used. Therefore, each site in the group of to-be-received sites that supports the multi-user transmission mechanism may select one of the sub-channels to transmit the indication message to be received. Incoming points can receive messages sent by multiple sites simultaneously.
  • each site in the first to-be-received site group that supports the multi-user transmission mechanism multi-user transmission mechanism is unified according to the indication of the first trigger message.
  • the access point can receive the to-be-received indication message that is sent by multiple sites at the same time through the multi-user transmission mechanism, thereby avoiding waste of channel resources caused by message conflicts in the free channel competition process.
  • FIG. 1 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention
  • FIG. 2 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention
  • FIG. 3 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention
  • FIG. 4 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a data structure of a broadcast message according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a data structure of a trigger message according to an embodiment of the present invention.
  • FIG. 7 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention.
  • FIG. 8 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention.
  • FIG. 9 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention.
  • FIG. 10 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention.
  • FIG. 11 is another schematic flowchart of a method for transmitting an indication message to be received according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of another data structure of a trigger message according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of an access point according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a station according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of a computer based on a method for transmitting an indication message to be received according to an embodiment of the present invention.
  • the embodiment of the invention is applied to a scenario in which an access point transmits downlink data to a station in a wireless local area network.
  • the site is in a sleep state for a long time, and the access point and the site agree on a time.
  • the station cycle wakes up to receive a broadcast message sent by the access point, where the broadcast message includes a TIM field.
  • the TIM field is composed of a number of binary bits, and the serial number of each binary bit corresponds to the AID of the station to be received. When a certain bit is set to 1, the station indicating the corresponding AID has cached data in the access point, and needs to wake up. And download the cached data.
  • the station When the station receives the broadcast message, and finds that the indication bit corresponding to itself in the TIM field of the broadcast message is set to 1, the station needs to send an indication to be received to the access point to indicate that the site is currently in the
  • the awake state can receive the buffered data, and request the access point to allocate the channel resource of the buffered data, and send the downlink cached data on the corresponding channel resource.
  • the access point caches data for multiple sites at the same time, a request is generated for multiple sites to send an indication message to the access point, and in this process,
  • the problem of the channel resource allocation of the station to receive the indication message is specific. For details, refer to the following embodiments.
  • An embodiment of the present invention is to receive an indication message transmission method, where the method may include: the access point sends a broadcast message, where the broadcast message includes: a bitmap to be transmitted, TIM information, and a first to be received.
  • the first group of the to-be-received site group corresponds to the first trigger message, and the first trigger message is used to indicate that the first to-be-received site group supports multiple users.
  • the to-be-received station of the transmission mechanism simultaneously sends a to-be-received indication message to the access point;
  • the to-be-received site is a site indicating downlink data in the TIM;
  • the access point is according to the first trigger message And sending, by the sending time information, the first trigger message, where the access point receives the to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the to-be-received site group corresponds to the trigger message, that is, the first to-be-received site group corresponds to the first trigger message, and the first trigger message is used to indicate the first
  • the to-be-received station that supports the multi-user transmission mechanism in the to-be-received site group simultaneously sends an indication to be received to the access point.
  • the second to-be-received site group corresponds to the second trigger message, and the second trigger message is used. And indicating that the to-be-received station in the second group of to-be-received stations supporting the multi-user transmission mechanism simultaneously sends an indication to be received to the access point, and so on.
  • the second group of to-be-received stations may refer to the next group of to-be-received stations of the first group of to-be-received stations, or any group of to-be-received stations other than the first group of to-be-received stations, where The details are not limited.
  • the first trigger message may include: first to-be-received site group indication information, or first to-be-received site group identification information; the first initial association identifier is a minimum associated identifier in the first to-be-received site group The associated identifier of a pending site.
  • the to-be-received site group indication information or the to-be-received site group identification information included in any of the trigger messages is associated with carrying the to-be-received site group indication information or the to-be-received site group identification information.
  • the trigger message corresponds to (for example, the second trigger message includes the second to-be-received site group indication information).
  • the first to-be-received site group indication information includes: allocation information indicating a channel resource of the to-be-received indication message corresponding to the first to-be-received site group.
  • the allocation information of the channel resource indicating the to-be-received indication message corresponding to the second to-be-received site group is included, and so on.
  • the first trigger message further includes: first channel resource indication information, where the first channel resource indication information is indication information of a channel resource that the first to-be-received station group sends a to-be-received indication message, the channel resource Included that the to-be-received site for the first group of to-be-received stations sends a pending connection A channel resource unit that receives the indication message.
  • the second trigger message includes the second channel resource indication information, where the second channel resource indication information is the indication information of the channel resource of the second to-be-received station group that is to receive the indication message, and so on.
  • an embodiment of a method for transmitting an indication message to be received in an embodiment of the present invention includes:
  • the access point sends a broadcast message.
  • the access point sends a broadcast message to the to-be-received site, where the broadcast message includes: a transmission indication bitmap, a first to-be-received site group information, and a transmission time information of the first trigger message; the trigger message is used to indicate the same to-be-received site
  • the to-be-received station of the group simultaneously sends an indication message to be received to the access point.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the first trigger message is a trigger message corresponding to the first group to be received.
  • the second trigger message is a trigger message corresponding to the second group to be received, and so on.
  • the to-be-received site group information may be: identifier information of the to-be-received site of the to-be-received site group, or identifier information of the to-be-received site at the end of the group to be received, and the number of sites included in the to-be-received site group.
  • the identifier of the to-be-received site includes, but is not limited to, an association identifier of the to-be-received site, an order number of "1" in the TIM corresponding to the to-be-received site, and a media access control (MAC, Medium Access Control) of the to-be-received site.
  • MAC Medium Access Control
  • the information about the number of stations included in the group to be received specifically includes, by using one quantity, that each group to be received includes the same number of sites, and each group to be received includes
  • the number of to-be-received sites is the indicated number, and the number of to-be-received sites included in each to-be-received site group may be separately indicated for each to-be-received site group, and the number of each to-be-received site group may be the same. different.
  • the sending time information is used to indicate a time when the access point sends a corresponding trigger message.
  • the spectrum of the radio channel working between the access point and the station to be received is divided into a plurality of orthogonal subcarriers, and one or more subcarriers are grouped into one subchannel.
  • the time required for the to-be-received station to send the indication message to be received on an uplink sub-channel, and the sub-channel is referred to as a channel resource unit for transmitting the indication information to be received (ie, the spectrum corresponding to the sub-channel and the message required for sending the message) Time, etc.).
  • the broadcast message may be a beacon message in an actual application, or may be a message in another format, which is not limited herein.
  • the TIM is used to indicate whether each site currently has data cached in the access point; further, the TIM may be a binary sequence, and each bit in the binary sequence corresponds to an AID of each site, When one of the binary numbers is set to "1", it means that the corresponding site has data cached at the access point; when one of the binary numbers is set to "0", it means that the corresponding site has no data cached at the access point.
  • the station whose flag bit in the TIM is set to "1" is the station to be received.
  • the first to-be-received site group information is used to indicate packet information of a to-be-received site in the first to-be-received site group, where one subchannel in the radio channel spectrum can be supported by a to-be-received site group.
  • a plurality of user transmission mechanisms (such as orthogonal frequency division multiple access transmission mechanism) are used by a to-be-received station. Therefore, each station in the group of to-be-received stations supporting the multi-user transmission mechanism may select one of the sub-channels to be received.
  • the access point can simultaneously receive messages sent by multiple sites supporting the multi-user transmission mechanism by using a multi-user transmission mechanism.
  • the broadcast message includes at least the information of the first group to be received and the sending time information of the corresponding trigger message, where the trigger message is used to indicate that the to-be-received station of the same to-be-received station group simultaneously accesses the The point sends a to-be-received indication message, where each of the to-be-received site groups corresponds to one trigger message, and the first trigger message is a trigger message corresponding to the first to-be-received site group.
  • the broadcast message may include: information about at least one other group of to-be-received stations except the first group of to-be-received stations, and sending time information of the corresponding trigger message.
  • the to-be-received indication message is an indication message that is sent by the to-be-received station to the access point, and is used to indicate that the to-be-received station is currently in an awake state, and can receive downlink buffered data, and request the access point to allocate a channel for transmitting downlink data. The resource then receives the downlink data on the downlink channel resource.
  • the to-be-received indication message may be a PS-Poll message.
  • the multi-user transmission mechanism refers to a transmission mode in which multiple to-be-received stations use frequency division multiple access (such as orthogonal frequency division multiple access) or multiple users (multiple input multiple output) on a certain spectrum resource. Communicate with an access point at the same time.
  • the multi-user transmission mechanism includes but is not limited to: Orthogonal Frequency Division Multiple Access (OFDMA) mechanism, multi-input multi-output multi-user transmission mechanism (MU MIMO, Multi User MIMO (Multi-Input Multi-Output) )).
  • OFDMA Orthogonal Frequency Division Multiple Access
  • MU MIMO multi-input multi-output multi-user transmission mechanism
  • Multi-Input Multi-Output Multi-Input Multi-Output
  • the access point sends a first trigger message according to the sending time information of the first trigger message.
  • the station receives the broadcast message, if the TIM is found through the TIM
  • the downlink buffer data needs to be transmitted, and the first station group information is learned by the first to-be-received station group information, and the first trigger message is sent to the waking state, so as to receive the first Trigger a message.
  • the site may not perform processing; if the site learns that the site belongs to the non-first site group by using the first to-be-received site group information, Receive a trigger message corresponding to the group of stations to be received. .
  • the trigger message may be a trigger message or a message in another format, which is not limited herein.
  • the trigger message may include: identifier information of the trigger message, information of the to-be-received site group corresponding to the trigger message, transmission time information of the next trigger message, and one or more information in the channel resource indication information; Actual conditions are not limited here.
  • the sending time information of each trigger message may be set according to actual requirements; and if the situation changes during the actual application process (for example, occurs) Delay time), it is also possible to dynamically adjust the transmission time information of the unsent trigger message. Therefore, in the actual application process, only the sending time information of the first trigger message or the sending time information of the trigger message corresponding to each station group to be received may be set in the broadcast message; when the trigger message is sent, the trigger message is sent.
  • the sending time information of the next triggering message may be included or not, which is determined according to the actual situation, and is not limited herein.
  • the trigger message when the broadcast message includes the sending time information of each trigger message, the trigger message may not include the sending time information of the next trigger message; when the broadcast message does not include the sending time information of each trigger message, The trigger message may include sending time information of a next trigger message.
  • the access point receives the to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism;
  • the time for sending the indication message to be received is determined according to the first trigger message.
  • the to-be-received station may pre-arrange a duration with the access point, such as a short frame interval, after receiving the first trigger message, and after the agreed duration, each to-be-received site At the same time, the indication message to be received is sent to the access point.
  • the first trigger message may also include a sending indication information of the to-be-received indication message, and each to-be-received station determines, according to the indication of the sending indication information of the to-be-received indication message, a time for uniformly sending and receiving the indication message,
  • the sending indication information of the to-be-received indication message is At 14:15:01, the to-be-received station in each of the first to-be-received station groups, after receiving the first trigger message, uniformly sends a to-be-received indication message to the access point at 14:15:01. .
  • the access point sends resource allocation information to the to-be-received station.
  • the access point sends the resource allocation information to the to-be-received station, where the allocation message is used to indicate to the to-be-received station, the channel resource for downloading the cached data, so that the to-be-received station downloads the cached data in the channel resource indicated by the allocation message.
  • the access point After the first to-be-received site group of the access point sends the first trigger message, each site in the first group of to-be-received sites that supports the multi-user transmission mechanism multi-user transmission mechanism according to the indication of the first trigger message Sending an indication message to be received to the access point.
  • the access point can receive the to-be-received indication message that is sent by multiple sites at the same time through the multi-user transmission system, thereby avoiding waste of channel resources caused by message conflicts in the free channel competition process.
  • each of the to-be-received sites in the to-be-received site group supports a multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message has only the first to-be-received site group information, and is included in the broadcast message.
  • the sending time information of the triggering message is only the sending time information of the first triggering message.
  • the access point sends a broadcast message.
  • the access point When the data of the to-be-received site is cached in the access point, the access point sends a broadcast message, where the broadcast message includes: a transmission indication bitmap, a first to-be-received site group information, and a first trigger message transmission time information.
  • the triggering message is used to indicate that the to-be-received station of the same to-be-received station group sends a to-be-received indication message to the access point, where the first triggering message is a trigger message corresponding to the first to-be-received station group.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the access point sends a first trigger message according to the sending time information of the first trigger message.
  • the first trigger message includes: sending time information of a trigger message corresponding to the second group to be received.
  • the station receives the broadcast message, if the TIM finds that the own site has downlink cache data to be transmitted, and the first to-be-received site group information is used to learn that the own site belongs to the first site group, The sending time of the first trigger message is in an awake state, so as to receive the first trigger message.
  • the site finds that its site does not go down through the TIM Cache data needs to be transferred, so it can be left unprocessed.
  • the station If the station confirms that it is the to-be-received site through the TIM, and the first to-be-received site group information is used to learn that the site belongs to the non-first site group, the broadcast message does not include the to-be-received corresponding to the own site.
  • the station group information, the station to be received needs to wake up according to the sending time information of the second trigger message included in the first trigger message, and receive the second trigger message.
  • the trigger message may be a trigger message or a message in another format, which is not limited herein.
  • the trigger message may include: identifier information of the trigger message, indication information of the to-be-received site group corresponding to the trigger message, transmission time information of the next trigger message, and one or more information in the channel resource indication information; According to the actual situation, there is no limit here.
  • the triggering message may further include: channel resource indication information, where the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message, where The channel resource for sending the to-be-received indication message includes at least one channel resource unit for the to-be-received station to send the to-be-received indication message. It can be understood that, in practical applications, if the access point and the to-be-received site have previously agreed channel resources, the triggering message may not include the channel resource indication information.
  • the access point receives the to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message, and sent by using a multi-user transmission mechanism.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received station determines, according to the preset channel resource and the to-be-received site group indication information, that the to-be-received station sends the to-be-received indication message. And channel resources, and then using the channel resource to send an indication message to be received to the access point.
  • the triggering message includes the channel resource indication information, where the to-be-received station determines the channel resource indication information and the to-be-received site group indication information. And the to-be-received station sends the channel resource corresponding to the to-be-received indication message, and then sends the to-be-received indication message to the access point by using the channel resource.
  • the access point sends resource allocation information to the to-be-received site in the first to-be-received site group.
  • the access point sends resource allocation information to the to-be-received site in the first group of to-be-received sites, where the allocation information is used to indicate to the to-be-received site, the channel resource for downloading the cached data, so that the to-be-received site is in the channel indicated by the allocation message.
  • the cached data is downloaded from the resource.
  • the access point sends a second trigger message.
  • step 205 occurs after step 202, but does not have a strict timing relationship with steps 203 and 204.
  • the second triggering message may include: information about the station group to be received, and information about the sending time of the trigger message corresponding to the second group to be received.
  • the to-be-received site group indication information includes: a start association identifier or a to-be-received site group identifier information, where the start association identifier is an association identifier of a to-be-received site with the smallest association identifier in the to-be-received site corresponding to the trigger message.
  • the number of stations to be received of the group to be received may be included; optionally, the number of stations to be received in each group to be received may be the same or different, that is, the number of stations to be received is specific.
  • the number of stations to be received includes the same number of sites, and the number of sites to be received included in each group to be received is the indicated number, and may also be separately specified for each group to be received. Indicates the number of stations to be received included in each group to be received.
  • the number of groups to be received may be the same or different.
  • the to-be-received site group indication information includes: a site type indication bit table, where each bit in the site type indication bit table corresponds to one to-be-received site in the to-be-received site group corresponding to the trigger message, the site type Each bit in the indication bit table is used to indicate whether the corresponding to-be-received station can send the to-be-received indication message.
  • the to-be-received station determines whether the currently received trigger message includes the to-be-received site group indication information corresponding to the to-be-received site, and if not, step 2); if yes, step 3);
  • the receiving station receives the trigger message corresponding to the second group to be received according to the sending time information of the trigger message corresponding to the second group to be received, which is included in the currently received trigger message, and performs step 1);
  • the to-be-received station determines that the currently received trigger message is a trigger message corresponding to the to-be-received site.
  • the access point receives the to-be-received indication message sent by the at least one to-be-received station in the second to-be-received station group according to the second trigger message and sent by using a multi-user transmission mechanism;
  • the access point may continue to send the trigger message and receive the to-be-received indication message according to the foregoing method.
  • the access point sends resource allocation information to the to-be-received site in the second to-be-received site group.
  • the access point sends resource allocation information to the to-be-received station in the second group of to-be-received sites, where the allocation message is used to indicate to the to-be-received station, the channel resource for downloading the cached data, so that the to-be-received station is in the channel indicated by the allocation message.
  • the cached data is downloaded from the resource.
  • each of the to-be-received sites in the to-be-received site group supports a multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message has only the first to-be-received site group information, and the trigger message included in the broadcast message
  • the sending time information is only the sending time information of the first triggering message.
  • the to-be-received station receives a broadcast message sent by the access point.
  • the to-be-received site of the site group simultaneously sends a to-be-received indication message to the access point, where the first triggering message is a trigger message corresponding to the first to-be-received site group.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the first trigger message is a trigger message corresponding to the first group to be received.
  • the second trigger message is a trigger message corresponding to the second group to be received, and so on.
  • the station After receiving the broadcast message, the station checks the TIM in the broadcast message. If the binary corresponding to the site in the TIM is “0”, the station does not need to process; if the TIM corresponds to the site, If the binary is "1”, the site is confirmed to be the receiving site, and step 302 is performed.
  • the to-be-received station wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message.
  • the first trigger message includes: sending a trigger message corresponding to the second group to be received Send time information.
  • the station After the station receives the broadcast message, if the TIM finds that the own site has downlink cache data to be transmitted, and the first to-be-received site group information is used to learn that the own site belongs to the first site group, The sending time of the first trigger message is in an awake state, so as to receive the first trigger message.
  • the station may not perform processing.
  • the station If the station confirms that it is the to-be-received site through the TIM, and the first to-be-received site group information is used to learn that the site belongs to the non-first site group, the broadcast message does not include the to-be-received corresponding to the own site.
  • the station group information, the station to be received needs to wake up according to the sending time information of the second trigger message included in the first trigger message, and receive the second trigger message.
  • the trigger message may be a trigger message or a message in another format, which is not limited herein.
  • the trigger message may include: identifier information of the trigger message, indication information of the to-be-received site group corresponding to the trigger message, transmission time information of the next trigger message, and one or more information in the channel resource indication information; According to the actual situation, there is no limit here.
  • the triggering message may further include: channel resource indication information, where the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message, where The channel resource for sending the to-be-received indication message includes at least one channel resource unit for the to-be-received station to send the to-be-received indication message. It can be understood that, in practical applications, if the access point and the to-be-received site have previously agreed channel resources, the triggering message may not include the channel resource indication information.
  • the to-be-received station determines whether the currently received trigger message includes the to-be-received site group indication information corresponding to the to-be-received site.
  • the receiving station determines whether the currently received trigger message includes the to-be-received station group indication information corresponding to the to-be-received station, and if not, step 304 is performed; if yes, the to-be-receiving station determines that the currently received trigger message is the Step 305 is performed to trigger the message corresponding to the receiving site.
  • the broadcast message does not include the to-be-received site group information corresponding to each to-be-received site group, and does not include the sending time of the trigger message corresponding to each to-be-received site group
  • the corresponding trigger message sent by the access point is included.
  • the to-be-received site group indication information includes: a start association identifier or a to-be-received site group identifier information, where the start association identifier is an association identifier of a to-be-received site with the smallest association identifier in the to-be-received site corresponding to the trigger message.
  • the number of stations to be received of the group to be received may be included; optionally, the number of stations to be received in each group to be received may be the same, not necessarily the same, that is, the number of stations to be received It may contain only one quantity to indicate that each to-be-received site group contains the same number of sites, or contains multiple numbers, corresponding to the number of different sites respectively included in the plurality of to-be-received site groups.
  • the to-be-received site group indication information includes: a site type indication bit table, where each bit in the site type indication bit table corresponds to one to-be-received site in the to-be-received site group corresponding to the trigger message, the site type Each bit in the indication bit table is used to indicate whether the corresponding to-be-received station can send the to-be-received indication message.
  • the receiving station receives the trigger message corresponding to the second group to be received according to the sending time information of the trigger message corresponding to the second group to be received, which is included in the currently received trigger message.
  • the receiving station receives the trigger message corresponding to the second to-be-received station group according to the sending time information of the triggering message corresponding to the second to-be-received station group that is included in the currently received triggering message, and performs step 303.
  • the to-be-received station sends a to-be-received indication message to the access point by using a multi-user transmission mechanism according to the trigger message corresponding to the to-be-received site.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received station determines, according to the preset channel resource and the to-be-received site group indication information, that the to-be-received station sends the to-be-received indication message. And channel resources, and then using the channel resource to send an indication message to be received to the access point.
  • the triggering message includes the channel resource indication information, where the to-be-received station determines the channel resource indication information and the to-be-received site group indication information.
  • the to-be-received station sends the channel resource corresponding to the to-be-received indication message And transmitting, by the source, the to-be-received indication message to the access point by using the channel resource.
  • the to-be-received station receives resource allocation information sent by the access point.
  • the to-be-receiving station receives the resource allocation information sent by the access point, and downloads the cached data in the channel resource indicated by the allocation message.
  • each of the to-be-received sites in the to-be-received site group supports the multi-user transmission mechanism
  • the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group
  • broadcasts The sending time information of the triggering message included in the message is the sending time information of the triggering message corresponding to each group to be received.
  • the access point sends a broadcast message.
  • the access point When the data of the to-be-received site is cached in the access point, the access point sends a broadcast message, where the broadcast message includes: a transmission indication bitmap, and the to-be-received site group information corresponding to each to-be-received site group, each to be received
  • the sending time information of the triggering message corresponding to the site group, the triggering message is used to indicate that the to-be-received station of the same to-be-received station group sends a to-be-received indication message to the access point, and the first trigger message is the first to-be-received message.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the message structure of the broadcast message may refer to FIG. 5.
  • the TIM is a binary sequence of multiple bits, and each bit in the binary sequence corresponds to an AID of each station to be received, where When a binary number is set to "1", it indicates that the corresponding to-be-received site has data cached at the access point; when one of the binary digits is set to "0", it indicates that the corresponding to-be-received site has no data cached at the access point. point.
  • the information element of the Trigger IE is the information element of the trigger message.
  • the Trigger IE includes the sending time information of the triggering message of the group group information to be received (Group1, Group2, etc.
  • Start AID1 indicates the AID of the to-be-received site with the smallest AID in the first to-be-received site group corresponding to the first trigger message (or the STA to be received in the site group)
  • Num1 indicates the number of stations to be received included in the first group to be received, corresponding to the AIM in the corresponding TIM.
  • Start AID1 may also indicate that the AID of the first group to be received corresponding to the first trigger message is the largest.
  • the AID of the to-be-received station that is, the last receiving station
  • serial number of "1" in the TIM corresponding to the STA with the largest AID included in the STA to be received in the STA group, that is, the first "1" in the TIM.
  • the access point sends a first trigger message according to the sending time information of the first trigger message.
  • the first trigger message may include: sending time information of the trigger message corresponding to the second group to be received.
  • the time precision of the sending time information included in the trigger message may be greater than that included in the broadcast message. Time precision for sending time information).
  • the site After receiving the broadcast message, the site checks the TIM in the broadcast message. If the binary corresponding to the site in the TIM is "0", the site does not need to process; if the TIM corresponds to the site, the binary is " 1", then the site is a site to be received.
  • the to-be-received station determines, according to the corresponding to-be-received site group information included in the broadcast message, the sending time of the to-be-received site group and the trigger message corresponding to the to-be-received site, and prepares to send the to-be-received indication message. .
  • the to-be-received site of the first to-be-received site group checks the first to-be-received site group information in the broadcast message after determining that the downlink cached data needs to be transmitted, and confirms that the own site belongs to by using the first to-be-received site group information.
  • the first to-be-received station group is the first trigger message, and the to-be-received station of the first to-be-received station group is in the awake state when the first trigger message is sent.
  • the trigger message may be a trigger message or a message in another format, which is not limited herein.
  • the trigger message may include: identifier information of the trigger message, indication information of the to-be-received site group corresponding to the trigger message, transmission time information of the next trigger message, and one or more information in the channel resource indication information; According to the actual situation, there is no limit here.
  • the sending time information of each trigger message may be set according to actual requirements; and if the situation changes during the actual application process (for example, occurs) Delay time), it is also possible to dynamically adjust the transmission time information of the unsent trigger message. Therefore, in the actual application process, the sending time information of the first trigger message or the sending time information of the trigger message corresponding to each group to be received may be set in the broadcast message.
  • the message structure of the trigger message may refer to FIG. 6.
  • the Trigger ID is an identifier of the trigger message (eg, the first trigger message, corresponding to the to-be-received site of the first to-be-received site group)
  • Group1 is the indication information of the group to be received corresponding to the first group to be received
  • the start AID1 indicates the AID of the to-be-received site with the smallest AID in the first to-be-received site group corresponding to the first trigger message (or the sequence number of the "1" in the TIM corresponding to the STA with the smallest AID included in the STA to be received site group, that is,
  • Num1 indicates the number of stations to be received included in the first group to be received, and the number of "1"s in the TIM starting from "1" corresponding to Start AID1, multiple triggers
  • the information at the time of the message is so analogous.
  • Next Trigger time refers to the sending time information of the next trigger message.
  • the PS-Poll resource is channel resource indication information, where the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message, where the sending is to be received.
  • the channel resource of the indication message includes at least one channel resource unit for the to-be-received station to send an indication message to be received.
  • the channel resource to be received by the indication message may be previously agreed by the access point and the to-be-received site. Therefore, the trigger message does not necessarily include the PS-Poll resource.
  • the access point receives the to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received site of the first to-be-received site group may determine the channel resource used to send the to-be-received indication message according to the to-be-received site group indication information carried in the first trigger message.
  • the channel resource used to send the to-be-received indication message may be determined according to the to-be-received site group indication information carried in the first trigger message.
  • the to-be-received site of the first to-be-received site group is according to Start. AID1 and the corresponding identifier of the own station in the TIM, determining that the own station belongs to the Xth of all the to-be-received stations (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are in the entire spectrum. In the Xth frequency band of the resource;
  • the to-be-received site of the first to-be-received site group obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first trigger message. Then, according to the Start AID1 and the corresponding identifier of the own station in the TIM, it is determined that the own station belongs to the Xth of all the to-be-received sites (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are In the Xth frequency band of the entire spectrum resource.
  • the access point sends resource allocation information to the to-be-received station in the first to-be-received site group.
  • the access point sends resource allocation information to the to-be-received station in the first group of to-be-received sites, where the allocation message is used to indicate to the to-be-received station, the channel resource for downloading the cached data, so that the to-be-received station is in the channel indicated by the allocation message
  • the cached data is downloaded from the resource.
  • the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, and broadcasts
  • the sending time information of the triggering message included in the message is the sending time information of the triggering message corresponding to the at least two groups of the to-be-received station.
  • the to-be-received station receives a broadcast message sent by the access point.
  • the sending time information is used to indicate that the to-be-received station of the same to-be-received station group sends the to-be-received indication message to the access point, where the first trigger message is a trigger message corresponding to the first to-be-received station group.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the message structure of the broadcast message can be referred to FIG. 5.
  • the station after receiving the broadcast message, the station checks the TIM in the broadcast message. If the binary corresponding to the site in the TIM is “0”, the station does not need to process; if the TIM corresponds to the site, If the binary is "1", then the site is confirmed as the site to be received, and step 702 is performed.
  • the to-be-received station confirms the to-be-received site group to which the own site belongs and the corresponding trigger message according to the TIM and each to-be-received site group information.
  • the sending time of the to-be-received site group and the trigger message corresponding to the to-be-received site is determined according to the first to-be-received site group information.
  • the broadcast message further includes: a to-be-received corresponding to each to-be-received site group except the first to-be-received site group
  • the site group information determines the to-be-received site group and the trigger message corresponding to the to-be-received site according to the to-be-received site group information corresponding to each to-be-received site group.
  • the to-be-received station wakes up according to the trigger message corresponding to the to-be-received site, and receives a trigger message corresponding to the to-be-received site.
  • the to-be-received station If the to-be-received site corresponds to the first triggering message, the to-be-received station is in an awake state at the sending time of the first triggering message, and receives the first triggering message sent by the access point;
  • the to-be-received station is in the awake state at the sending time of the Nth trigger message, and receives the Nth trigger message sent by the access point, where the N is not A positive integer of one.
  • the trigger message may be a trigger message or a message in another format, which is not limited herein.
  • the trigger message may include: identifier information of the trigger message, indication information of the to-be-received site group corresponding to the trigger message, transmission time information of the next trigger message, and one or more information in the channel resource indication information; According to the actual situation, there is no limit here.
  • the message structure of the trigger message can be referred to FIG. 6.
  • the triggering message may further include: channel resource indication information, where the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message, where The channel resource for sending the to-be-received indication message includes at least one channel resource unit for the to-be-received station to send the to-be-received indication message. It can be understood that, in practical applications, if the access point and the to-be-received site have previously agreed channel resources, the triggering message may not include the channel resource indication information.
  • the to-be-received station sends a to-be-received indication message to the access point by using a multi-user transmission mechanism according to the trigger message corresponding to the to-be-received site.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received site of the first to-be-received site group may determine the channel resource used to send the to-be-received indication message according to the to-be-received site group indication information carried in the first trigger message.
  • the channel resource used to send the to-be-received indication message may be determined according to the to-be-received site group indication information carried in the first trigger message.
  • the to-be-received site of the first to-be-received site group is according to Start. AID1 and the corresponding identification bits of the own site in the TIM, determining that the own site belongs to the Xth of all the to-be-received sites (indicated by Num1) of the to-be-received site group.
  • the channel resources corresponding to the own site are in the Xth frequency band of the entire spectrum resource;
  • the to-be-received site of the first to-be-received site group obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first trigger message. Then, according to the Start AID1 and the corresponding identifier of the own station in the TIM, it is determined that the own station belongs to the Xth of all the to-be-received sites (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are In the Xth frequency band of the entire spectrum resource.
  • the to-be-received station receives resource allocation information sent by the access point.
  • the to-be-receiving station receives the resource allocation information sent by the access point, and downloads the cached data in the channel resource indicated by the allocation message.
  • each of the to-be-received sites in the to-be-received site group supports the multi-user transmission mechanism
  • the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, and broadcasts
  • the sending time information of the triggering message included in the message is only the sending time information of the first triggering message.
  • another embodiment of the method for transmitting the indication information to be received in the embodiment of the present invention includes:
  • the access point sends a broadcast message.
  • the access point When the data of the to-be-received site is cached in the access point, the access point sends a broadcast message, where the broadcast message includes: a transmission indication bitmap, the to-be-received site group information corresponding to each to-be-received site group, and the first trigger
  • the broadcast message includes: a transmission indication bitmap, the to-be-received site group information corresponding to each to-be-received site group, and the first trigger
  • the sending time information of the message, the triggering message is used to indicate that the to-be-received station of the same to-be-received station group simultaneously sends an indication to be received to the access point, where the first trigger message is corresponding to the first to-be-received station group.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the message structure of the broadcast message may refer to FIG. 5 (in the embodiment of the present invention, there is no Trigger time 2 in the Trigger IE).
  • the access point sends a first trigger message according to the sending time information of the first trigger message.
  • the first trigger message may include: sending time information of a trigger message corresponding to the second group to be received.
  • the site After receiving the broadcast message, the site checks the TIM in the broadcast message. If the binary corresponding to the site in the TIM is "0", the site does not need to process; if the TIM corresponds to the site, The binary is "1" and the site is the site to be received.
  • the to-be-received station determines, according to the corresponding to-be-received site group information included in the broadcast message, the to-be-received site group and the trigger message corresponding to the to-be-received site, and prepares to send the to-be-received indication message.
  • the to-be-received site of the first to-be-received site group checks the first to-be-received site group information in the broadcast message after determining that the downlink cached data needs to be transmitted, and confirms that the own site belongs to by using the first to-be-received site group information.
  • the first to-be-received station group is the first trigger message, and the to-be-received station of the first to-be-received station group is in the awake state when the first trigger message is sent.
  • the message structure of the trigger message can be referred to FIG. 6.
  • the access point receives the to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received site of the first to-be-received site group may determine the channel resource used to send the to-be-received indication message according to the to-be-received site group indication information carried in the first trigger message.
  • the channel resource used to send the to-be-received indication message may be determined according to the to-be-received site group indication information carried in the first trigger message.
  • the to-be-received site of the first to-be-received site group is according to Start. AID1 and the corresponding identifier of the own station in the TIM, determining that the own station belongs to the Xth of all the to-be-received stations (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are in the entire spectrum. In the Xth frequency band of the resource;
  • the to-be-received site of the first to-be-received site group obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first trigger message. Then, according to the Start AID1 and the corresponding identifier of the own station in the TIM, it is determined that the own station belongs to the Xth of all the to-be-received sites (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are In the Xth frequency band of the entire spectrum resource.
  • the access point sends resource allocation information to the to-be-received site in the first to-be-received site group.
  • the access point sends resource allocation information to the to-be-received station in the first group of to-be-received sites, where the allocation message is used to indicate to the to-be-received station, the channel resource for downloading the cached data, so that the to-be-received station is in the channel indicated by the allocation message
  • the cached data is downloaded from the resource.
  • the access point sends a second trigger message.
  • step 805 occurs after step 802, but does not have a strict timing relationship with steps 803 and 804.
  • the second triggering message may include: information about the station group to be received, and information about the sending time of the trigger message corresponding to the second group to be received.
  • the to-be-received station determines whether the currently received trigger message is a trigger message corresponding to the to-be-received site, and if so, stops the process of receiving the trigger message; if not, performs step 2);
  • the to-be-received station receives the trigger message corresponding to the second to-be-received station group according to the sending time information of the trigger message corresponding to the second to-be-received station group included in the currently received trigger message, and performs step 1).
  • the access point receives the to-be-received indication message that is sent by the at least one to-be-received station in the second to-be-received station group according to the second trigger message and sent by using a multi-user transmission mechanism.
  • the access point may continue to send the trigger message and receive the to-be-received indication message according to the foregoing method.
  • the access point sends resource allocation information to the to-be-received site in the second to-be-received site group.
  • the access point sends resource allocation information to the to-be-received station in the second group of to-be-received sites, where the allocation message is used to indicate to the to-be-received station, the channel resource for downloading the cached data, so that the to-be-received station is in the channel indicated by the allocation message.
  • the cached data is downloaded from the resource.
  • each of the to-be-received sites in the to-be-received site group supports the multi-user transmission mechanism
  • the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, in the broadcast message.
  • the sending time information of the trigger message is only the sending time information of the first triggering message.
  • the to-be-received station receives a broadcast message sent by the access point.
  • the to-be-receiving station receives a broadcast message sent by the access point, where the broadcast message includes: a transmission indication bit
  • the information about the to-be-received site group corresponding to each group to be received, the time information of the first trigger message, the trigger message is used to indicate that the to-be-received station of the same to-be-received site group simultaneously sends the to-be-received site to the access point.
  • the indication message is that the first trigger message is a trigger message corresponding to the first group to be received.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the message structure of the broadcast message may refer to FIG. 5 (in the embodiment of the present invention, there is no Trigger time 2 in the Trigger IE).
  • the station After receiving the broadcast message, the station checks the TIM in the broadcast message. If the binary corresponding to the site in the TIM is “0”, the station does not need to process; if the TIM corresponds to the site, If the binary is "1”, then the site is confirmed as the site to be received, and step 902 is performed.
  • the to-be-received station wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message.
  • the first trigger message includes: sending time information of a trigger message corresponding to the second group to be received.
  • the station After the station receives the broadcast message, if the TIM finds that the own site has downlink cache data to be transmitted, and the first to-be-received site group information is used to learn that the own site belongs to the first site group, The sending time of the first trigger message is in an awake state, so as to receive the first trigger message.
  • the station may not perform processing.
  • the station If the station confirms that it is the to-be-received site through the TIM, and the first to-be-received site group information is used to learn that the site belongs to the non-first site group, the broadcast message does not include the to-be-received corresponding to the own site.
  • the station group information, the station to be received needs to wake up according to the sending time information of the second trigger message included in the first trigger message, and receive the second trigger message.
  • the triggering message may further include: channel resource indication information, where the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message, where The channel resource for sending the to-be-received indication message includes at least one channel resource unit for the to-be-received station to send the to-be-received indication message. It can be understood that, in practical applications, if the access point and the to-be-received site have previously agreed channel resources, the triggering message may not include the channel resource indication information.
  • the to-be-received station determines whether the currently received trigger message is a trigger message corresponding to the to-be-received site.
  • the receiving station determines whether the currently received trigger message is a trigger message corresponding to the to-be-received station, and if yes, stops the process of receiving the trigger message, and performs step 905; if not, step 904 is performed.
  • the corresponding trigger message sent by the access point includes the sending time information of the trigger message corresponding to the second group to be received.
  • the to-be-received station receives the trigger message corresponding to the second to-be-received station group according to the sending time information of the trigger message corresponding to the second to-be-received station group included in the currently received trigger message.
  • the receiving station receives the trigger message corresponding to the second group to be received according to the sending time information of the trigger message corresponding to the second group to be received, which is included in the currently received trigger message, and performs step 903.
  • the to-be-received station sends a to-be-received indication message to the access point by using a multi-user transmission mechanism according to the trigger message corresponding to the to-be-received site.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received site of the first to-be-received site group may determine the channel resource used to send the to-be-received indication message according to the to-be-received site group indication information carried in the first trigger message.
  • the channel resource used to send the to-be-received indication message may be determined according to the to-be-received site group indication information carried in the first trigger message.
  • the to-be-received site of the first to-be-received site group is according to Start. AID1 and the corresponding identifier of the own station in the TIM, determining that the own station belongs to the Xth of all the to-be-received stations (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are in the entire spectrum. In the Xth frequency band of the resource;
  • the to-be-received site of the first to-be-received site group obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first trigger message. And then according to the Start AID1 and the corresponding identification bits of the own site in the TIM, it is determined that the own site belongs to all the to-be-received sites of the to-be-received site group (indicated by Num1) The Xth in the corresponding one, the channel resource corresponding to the own site is in the Xth frequency band of the entire spectrum resource.
  • the to-be-received station receives resource allocation information sent by the access point.
  • the to-be-receiving station receives the resource allocation information sent by the access point, and downloads the cached data in the channel resource indicated by the allocation message.
  • each of the to-be-received sites in the to-be-received site group does not support the multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message has only the first to-be-received site group information, and the broadcast message includes The sending time information of the triggering message is only the sending time information of the first triggering message.
  • another embodiment of the method for transmitting the indication information to be received in the embodiment of the present invention includes:
  • the access point sends a broadcast message.
  • the access point When the data of the to-be-received site is cached in the access point, the access point sends a broadcast message, where the broadcast message includes: a transmission indication bitmap, a first to-be-received site group information of the to-be-received site, and a first trigger message.
  • the sending time information is used to indicate that the to-be-received station of the same to-be-received station group sends the to-be-received indication message to the access point, where the first trigger message is a trigger message corresponding to the first to-be-received station group.
  • the message structure of the broadcast message can refer to FIG. 5 (in the embodiment of the present invention, there is no second set of Trigger IE).
  • Group1 includes multiple to-be-received sites, wherein some of the to-be-received sites support a multi-user transmission mechanism, and some of the to-be-received sites do not support a multi-user transmission mechanism.
  • the access point sends the first trigger message according to the sending time information of the first trigger message.
  • the first trigger message includes: sending time information of a trigger message corresponding to the second group to be received.
  • the site After receiving the broadcast message, the site checks the TIM in the broadcast message. If the binary corresponding to the site in the TIM is "0", the site does not need to process; if the TIM corresponds to the site, the binary is " 1", then the site is a site to be received.
  • the to-be-received station wakes up when the first trigger message is sent according to the sending time information of the first trigger message.
  • the to-be-received station After the receiving station that does not support the multi-user transmission mechanism receives the broadcast message sent by the access point, The to-be-received station can only identify the information of the TIM in the broadcast message. Therefore, the to-be-received station sends the to-be-received indication message to the access point in the manner of the free-competitive channel in the prior art.
  • the general process is as follows: the receiving station first listens to whether the channel is idle. If the channel idle time exceeds a certain time (such as AIFS, arbitration interframe space, arbitration frame interval), the to-be-received station starts a backoff mechanism, that is, the minimum setting.
  • a certain time such as AIFS, arbitration interframe space, arbitration frame interval
  • a backoff time value (in units of Time slot) is randomly selected between the backoff time and the maximum backoff time, and a countdown timing clock (in units of Time slot) is started.
  • a countdown timing clock in units of Time slot
  • the access point receives the to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the first trigger message after receiving the first trigger message, determining, according to the first trigger message, a time for sending an indication message to be received.
  • an agreed duration may be set between the to-be-received sites, and after receiving the first trigger message, after the agreed duration, each to-be-received station simultaneously sends a receiving indication message.
  • the first trigger message may also include a sending indication information of the to-be-received indication message, and each to-be-received station determines, according to the indication of the sending indication information of the to-be-received indication message, a time for uniformly transmitting and receiving the indication message.
  • the to-be-received station Before receiving the to-be-received indication message, the to-be-received station first determines the channel resource (the frequency band of the entire spectrum resource and the division manner of the entire spectrum resource) to be received by the receiving station, and specifically, there are two ways: The in-point and the to-be-received site agree in advance; 2. The to-be-received station obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first triggering message.
  • the in-point and the to-be-received site agree in advance; 2.
  • the to-be-received station obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first triggering message.
  • the to-be-receiving station determines, according to the channel resource of the to-be-received indication message, the first to-be-received site group information of the to-be-received site included in the triggering message, the channel resource of the to-be-received indication message sent by the own station.
  • the to-be-received site group indication information included in the trigger message is a to-be-received site type indication identifier
  • the to-be-received site The type indication identifier is specifically a binary bit table, such as STA type Bit-MAP in FIG.
  • the site to be received is obtained according to STA type Bit-MAP.
  • the own station is the Xth station to be received in the to-be-received station group, and correspondingly, the channel resource corresponding to the own station is in the Xth frequency band of the entire spectrum resource.
  • the access point sends resource allocation information to the to-be-received site in the first to-be-received site group.
  • the access point sends resource allocation information to the to-be-received station in the first group of to-be-received sites, where the allocation message is used to indicate to the to-be-received station, the channel resource for downloading the cached data, so that the to-be-received station is in the channel indicated by the allocation message
  • the cached data is downloaded from the resource.
  • the access point sends a second trigger message.
  • step 1005 occurs after step 1002, but does not have a strict timing relationship with steps 1003 and 1004.
  • the second triggering message may include: information about the station group to be received, and information about the sending time of the trigger message corresponding to the second group to be received.
  • the to-be-received station determines whether the currently received trigger message includes the to-be-received site group indication information corresponding to the to-be-received site, and if not, step 2); if yes, step 3);
  • the receiving station receives the trigger message corresponding to the second group to be received according to the sending time information of the trigger message corresponding to the second group to be received, which is included in the currently received trigger message, and performs step 1);
  • the to-be-received station determines that the currently received trigger message is a trigger message corresponding to the to-be-received site.
  • the access point receives the to-be-received indication message sent by the at least one to-be-received station in the second to-be-received station group according to the second trigger message, and sent by using a multi-user transmission mechanism.
  • the access point may continue to send the trigger message and receive the to-be-received indication message according to the foregoing method.
  • the access point sends resource allocation information to the to-be-received station in the second to-be-received site group.
  • the access point sends resource allocation information to the to-be-received station in the second group of to-be-received sites, where the allocation message is used to indicate to the to-be-received station, the channel resource for downloading the cached data, so that the to-be-received station is in the channel indicated by the allocation message.
  • the cached data is downloaded from the resource.
  • each of the to-be-received sites in the group to be received does not support multi-user transmitters.
  • the information of the to-be-received site group information included in the broadcast message is only the first to-be-received site group information, and the transmission time information of the trigger message included in the broadcast message is only the transmission time information of the first trigger message, as shown in FIG.
  • Another embodiment of the method for transmitting an indication message to be received in the embodiment of the present invention includes:
  • the to-be-received station receives a broadcast message sent by the access point.
  • the to-be-received site of the site group simultaneously sends a to-be-received indication message to the access point, where the first triggering message is a trigger message corresponding to the first to-be-received site group.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the station after receiving the broadcast message, the station checks the TIM in the broadcast message. If the binary corresponding to the site in the TIM is “0”, the station does not need to process; if the TIM corresponds to the site, If the binary is "1", the station is confirmed to be the receiving station; further, if the receiving station can identify the Trigger IE information in the broadcast message, step 1102 is performed; if the station to be received cannot identify the Trigger in the broadcast message.
  • the IE information confirms that the to-be-received site is a to-be-received site that does not support the multi-user transmission mechanism, and the to-be-received site can only identify the TIM information in the broadcast message, and therefore, the to-be-received site will be in the prior art.
  • the method of freely competing channels sends an indication message to be received to the access point, wherein the general procedure of the channel free competition mechanism is: whether the channel to be received first listens to the channel is idle, if the channel idle time exceeds a certain time (such as AIFS, arbitration interframe space) , arbitration frame interval), the receiving station starts a backoff mechanism, that is, the set minimum backoff time and maximum backoff Randomly select a backoff time value (in units of Time slot) while avoiding time, and start a countdown timer clock (in units of Time slot).
  • a backoff mechanism that is, the set minimum backoff time and maximum backoff Randomly select a backoff time value (in units of Time slot) while avoiding time, and start a countdown timer clock (in units of Time slot).
  • the channel idle time reaches the backoff time value selected by the station to be received, the countdown is performed.
  • the timing clock is reduced to 0, and the to-be-received station is triggered to send an indication message to be received to the access
  • the to-be-received station wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message.
  • the trigger message includes: sending time information of a trigger message corresponding to the second group to be received.
  • the to-be-received station determines whether the currently received trigger message includes the to-be-received site group indication information corresponding to the to-be-received site.
  • the receiving station determines whether the currently received trigger message includes the to-be-received station group indication information corresponding to the to-be-received station, and if not, performs step 1104); if yes, the to-be-received station determines that the currently received trigger message is The trigger message corresponding to the receiving site is mentioned, and step 1105) is performed.
  • the trigger message includes: sending time information of a trigger message corresponding to the second group to be received, and indication information of the group to be received;
  • the to-be-received site group indication information included in the trigger message may be a site type indication bit table, where each bit in the site type indication bit table corresponds to the to-be-received site group corresponding to the trigger message.
  • site type indication bit table corresponds to the to-be-received site group corresponding to the trigger message.
  • One of the to-be-received sites, each bit in the station type indication bit table is used to indicate whether the corresponding to-be-received station can send the to-be-received indication message.
  • the message structure of the trigger message may refer to FIG. 12.
  • the Trigger ID is an identifier of the trigger message (eg, the first trigger message, corresponding to the to-be-received site of the first to-be-received site group)
  • the STA type Bit-MAP is the indication type of the station type to be received.
  • the STA type Bit-MAP one-digit binary number is set to "1" it indicates that the corresponding to-be-received station supports the multi-user transmission mechanism;
  • the bit binary number is set to "0" it indicates that the corresponding to-be-received site does not support the multi-user transmission mechanism.
  • Next Trigger time refers to the sending time information of the next trigger message.
  • the PS-Poll resource is channel resource indication information, where the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message, where the sending is to be received.
  • the channel resource of the indication message includes at least one channel resource unit for the to-be-received station to send an indication message to be received.
  • the channel resource to be received by the indication message may be previously agreed by the access point and the to-be-received site. Therefore, the trigger message does not necessarily include the PS-Poll resource.
  • the to-be-received station receives the trigger message corresponding to the second to-be-received station group according to the sending time information of the trigger message corresponding to the second to-be-received station group included in the currently received trigger message.
  • the receiving station receives the trigger message corresponding to the second to-be-received station group according to the sending time information of the triggering message corresponding to the second to-be-received station group that is included in the currently received triggering message, and performs step 1103.
  • the to-be-received station sends a to-be-received indication message to the access point by using a multi-user transmission mechanism according to the trigger message corresponding to the to-be-received site.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received station that supports the multi-user transmission mechanism of the first to-be-received station group may determine the channel resource used to send the to-be-received indication message according to the to-be-received site group indication information carried in the first trigger message.
  • the channel resource used to send the to-be-received indication message may be determined according to the to-be-received site group indication information carried in the first trigger message.
  • the access point and the to-be-received site have previously agreed on the channel resource to receive the indication message (the frequency band of the entire spectrum resource and the division manner of the entire spectrum resource)
  • the first to-be-received site group supports the multi-user transmission mechanism.
  • the to-be-received station learns, according to the STA type Bit-MAP, that its own station is the Xth to be received site supporting the multi-user transmission mechanism in the first to-be-received site group, and correspondingly, the channel resource corresponding to the own site is in the entire spectrum resource. In the Xth frequency band;
  • the to-be-received site of the first to-be-received site group obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first trigger message. Then, the to-be-received station that supports the multi-user transmission mechanism of the first to-be-received site group learns that the self-site is the X-th to-receive site supporting the multi-user transmission mechanism in the first to-be-received site group according to the STA type Bit-MAP, correspondingly, The channel resources corresponding to the own site are in the Xth frequency band of the entire spectrum resource.
  • the to-be-received station receives resource allocation information sent by the access point.
  • the to-be-receiving station receives the resource allocation information sent by the access point, and downloads the cached data in the channel resource indicated by the allocation message.
  • the information of the to-be-received site group included in the broadcast message is to be received by each to-be-received site group.
  • the sending time information of the trigger message included in the broadcast message is the sending time information of the trigger message corresponding to each group to be received, refer to the contents of the embodiment of FIG. 4 and FIG. 5 (how to determine each For the channel resources of the to-be-received site, refer to FIG. 10 and FIG.
  • the information about the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, and the trigger message included in the broadcast message is sent.
  • the time information is the transmission time information of the first trigger message
  • FIG. 8 and FIG. 9 how to determine the channel resources of each to-be-received station, refer to FIG. 10 and FIG. 11), where Let me repeat.
  • Another embodiment of an access point in an embodiment of the present invention includes:
  • the sending unit 1301 is configured to send a broadcast message, where the broadcast message includes: to-be-transmitted indication bitmap (TIM) information, first to-be-received site group information, and sending time information of the first trigger message; the trigger message is used to indicate The to-be-received station that supports the multi-user transmission mechanism in the same to-be-received site group simultaneously sends a to-be-received indication message to the access point; the to-be-received site is a site that indicates downlink data in the TIM;
  • TIM to-be-transmitted indication bitmap
  • the sending unit 1301 is further configured to send the first trigger message according to the sending time information of the first trigger message.
  • the receiving unit 1302 is configured to receive a to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the broadcast message further includes:
  • the to-be-received site group information corresponding to at least one other to-be-received site group other than the first to-be-received site group.
  • the broadcast message further includes:
  • the to-be-received site group information includes:
  • the identification information of the to-be-received site of the to-be-received site group or the identification information of the to-be-received site at the end of the to-be-received site group.
  • the broadcast message further includes:
  • the number of sites to be received included in the group to be received is the number of sites to be received included in the group to be received.
  • the trigger message includes:
  • the transmission time information of the trigger message corresponding to the second group to be received is the transmission time information of the trigger message corresponding to the second group to be received.
  • the trigger message includes: information about the group group to be received;
  • the to-be-received site group indication information includes: a start association identifier or a to-be-received site group identifier information, where the start association identifier is an association identifier of a to-be-received site with the smallest association identifier in the to-be-received site corresponding to the trigger message. ;
  • the to-be-received site group indication information includes: a site type indication bit table, the site type indication Each bit in the bit table corresponds to one to-be-received site in the group of to-be-received sites corresponding to the trigger message, and each bit in the site type indication bit table is used to indicate whether the corresponding to-be-received site can send the The indication message is to be received.
  • the to-be-received site group indication information is used to indicate allocation information of channel resources of a to-be-received indication message corresponding to a to-be-received site group.
  • the trigger message includes:
  • the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message
  • the channel resource for sending the to-be-received indication message includes at least one And transmitting, to the to-be-received station, a channel resource unit to receive an indication message.
  • Each of the to-be-received sites in the group to be received supports the multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, and the trigger message included in the broadcast message is included.
  • the sending time information is the sending time information of the trigger message corresponding to each group to be received.
  • the working process of each unit in the embodiment of the present invention is:
  • the sending unit 1301 sends a broadcast message, where the broadcast message includes: a transmission indication bitmap, and the to-be-received site group information corresponding to each to-be-received site group, each to be received.
  • the sending time information of the triggering message corresponding to the site group, the triggering message is used to indicate that the to-be-received station of the same to-be-received station group sends a to-be-received indication message to the access point, and the first trigger message is the first to-be-received message.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the message structure of the broadcast message may refer to FIG. 5.
  • the TIM is a binary sequence of multiple bits, and each bit in the binary sequence corresponds to an AID of each station to be received, where When a binary number is set to "1", it indicates that the corresponding to-be-received site has data cached at the access point; when one of the binary digits is set to "0", it indicates that the corresponding to-be-received site has no data cached at the access point. point.
  • the information element of the Trigger IE is the information element of the trigger message.
  • the Trigger IE includes the sending time information of the triggering message of the group group information to be received (Group1, Group2, etc.
  • Start AID1 indicates the AID of the to-be-received site with the smallest AID in the first to-be-received site group corresponding to the first trigger message (or STA to be received in the site group)
  • Num1 indicates the number of stations to be received included in the first to-be-received site group, corresponding to the TIM from the Start AID1
  • the number of "1"s starting with the corresponding "1" the information at the time of triggering the message, and so on.
  • Start AID1 may also represent the AID of the to-be-received station (ie, the last receiving station) with the largest AID in the first to-be-received site group corresponding to the first trigger message (or the AID of the STA to be received in the site group to be received is the largest).
  • the sending unit 1301 sends, by the access point, the first trigger message according to the sending time information of the first trigger message
  • the receiving unit 1302 receives the to-be-received indication message sent by the at least one to-be-received station in the first to-be-received station group according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the to-be-received site of the first to-be-received site group may determine the channel resource used to send the to-be-received indication message according to the to-be-received site group indication information carried in the first trigger message.
  • the channel resource used to send the to-be-received indication message may be determined according to the to-be-received site group indication information carried in the first trigger message.
  • the to-be-received site of the first to-be-received site group is according to Start. AID1 and the corresponding identifier of the own station in the TIM, determining that the own station belongs to the Xth of all the to-be-received stations (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are in the entire spectrum. In the Xth frequency band of the resource;
  • the to-be-received site of the first to-be-received site group obtains the channel resource of the to-be-received indication message by using the channel resource indication information in the first trigger message. Then, according to the Start AID1 and the corresponding identifier of the own station in the TIM, it is determined that the own station belongs to the Xth of all the to-be-received sites (indicated by Num1) of the to-be-received site group, and correspondingly, the channel resources corresponding to the own site are In the Xth frequency band of the entire spectrum resource.
  • Each of the to-be-received sites in the group to be received supports the multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message has only the first to-be-received site group information, and the transmission time information of the trigger message included in the broadcast message. Only the sending time information of the first trigger message is implemented in Figure 2. For example, it will not be described here.
  • Each of the to-be-received sites in the group to be received supports the multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, and the trigger message included in the broadcast message is included.
  • the transmission time information is only the transmission time information of the first trigger message. Please refer to the embodiment of FIG. 8 , and details are not described herein again.
  • the multi-user transmission mechanism is not supported by each of the to-be-received sites in the group to be received, and the to-be-received site group information included in the broadcast message has only the first to-be-received site group information, and the sending time of the trigger message included in the broadcast message.
  • the information only has the information of the sending time of the first triggering message. Please refer to the embodiment of FIG. 10, and details are not described herein again.
  • an embodiment of a site in the embodiment of the present invention includes:
  • the message receiving unit 1401 is configured to receive a broadcast message that is sent by the access point, where the broadcast message includes: a first to-be-received site group information to be transmitted indication bitmap information, and a sending time information of the first trigger message, where the first to be sent.
  • the receiving station group corresponds to the first trigger message; the first triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the first group of to-be-received stations simultaneously sends an indication to be received to the access point.
  • the station to be received is a station indicating downlink data in the TIM;
  • the message receiving unit 1401 is further configured to wake up according to the sending time information of the first trigger message, and receive a trigger message corresponding to the trigger message sent by the corresponding trigger message;
  • the message sending unit 1402 is configured to send a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and using a multi-user transmission mechanism.
  • the site further includes:
  • the first determining unit 1403 is configured to determine, according to the TIM and the first to-be-received site group information, a to-be-received site group and a trigger message corresponding to the to-be-received site.
  • the broadcast message further includes: to-be-received site group information corresponding to at least two to-be-received site groups except the first to-be-received site group;
  • the site also includes:
  • the second determining unit 1404 is configured to determine, according to the to-be-received site group information corresponding to the TIM and the at least two to-be-received site groups, the to-be-received site group and the trigger message corresponding to the to-be-received site.
  • the site further includes: a first determining unit 1405;
  • the first triggering message includes: sending time information of the second triggering message, where the second triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the second group of to-be-received stations simultaneously sends the information to the access point. Waiting to receive an indication message;
  • the first determining unit is configured to determine, according to the sending time information of the first trigger message, that the first triggering message is sent after the first triggering message is sent and the first triggering message is received, Whether the message is a trigger message corresponding to the to-be-received site;
  • the message sending unit is specifically configured to send, according to the trigger message corresponding to the to-be-received site, a multi-user transmission mechanism to the access point, when the first trigger message is a trigger message corresponding to the to-be-received site Waiting to receive an indication message;
  • the message receiving unit is further configured to: when the first trigger message is not the trigger message corresponding to the to-be-received site, receive the second to be received according to the sending time information of the second trigger message in the first trigger message The trigger message corresponding to the site group.
  • the site further includes: a second determining unit 1406;
  • the triggering message includes: information about the station group to be received and the sending time information of the trigger message corresponding to the second group to be received;
  • the first trigger message includes: first to-be-received site group indication information and second-trigger message transmission time information, where the second triggering message is used to indicate that the second to-be-received site group supports the multi-user transmission mechanism to be received. Sending, by the station, the indication message to be received to the access point;
  • the second determining unit is configured to determine, according to the sending time information of the first trigger message, that the first trigger is triggered after the first trigger message is sent and the first trigger message is received,
  • the message receiving unit includes the to-be-received site group indication information corresponding to the to-be-received site, and if not, the message receiving unit is configured to receive the second to-be-received according to the sending time information of the second triggering message in the first triggering message. Receiving a trigger message corresponding to the site group; if yes, executing the message sending unit.
  • the message sending unit is specifically configured to: when the first trigger message includes the to-be-received site group indication information corresponding to the to-be-received site, use a multi-user transmission mechanism according to the trigger message corresponding to the to-be-received site
  • the access point sends an indication message to be received;
  • the message receiving unit is further configured to: when the first trigger message does not include the to-be-received And receiving, according to the sending time information of the second trigger message in the first trigger message, the trigger message corresponding to the second group to be received.
  • the site further includes: a first channel determining unit 1407;
  • the triggering message includes: information about the to-be-received station group, where the to-be-received site group indication information is used to indicate allocation information of a channel resource to be received by the to-be-received site group;
  • the first channel determining unit 1407 is configured to determine, according to the preset channel resource and the to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station,
  • the message sending unit 1402 is specifically configured to send the to-be-received indication message to the access point by using the channel resource determined by the first channel determining unit.
  • the site further includes: a second channel determining unit 1408;
  • the trigger message includes: channel resource indication information, and information about the group group to be received;
  • the channel resource indication information is indication information of a channel resource for sending a to-be-received indication message to a to-be-received station group corresponding to the trigger message, where the channel resource for transmitting the to-be-received indication message includes at least one for the to-be-received
  • the station sends a channel resource unit to receive the indication message
  • the to-be-received site group indication information is used to indicate allocation information of a channel resource for sending a to-be-received indication message corresponding to a to-be-received site group;
  • the second channel determining unit 1408 determines, according to the channel resource indication information and the to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station;
  • the message sending unit 1402 is specifically configured to send the to-be-received indication message to the access point by using the channel resource determined by the second channel determining unit.
  • Each of the to-be-received sites in the group to be received supports the multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message has only the first to-be-received site group information, and the transmission time information of the trigger message included in the broadcast message. Only the sending time information of the first trigger message is used.
  • the action process of each unit in the embodiment of the present invention is:
  • the message receiving unit 1401 receives the broadcast message sent by the access point, where the broadcast message includes: a transmission indication bitmap, a first to-be-received site group information, and a transmission time information of the first trigger message, where the trigger message is used to indicate the same to be sent.
  • the to-be-received station of the receiving station group sends a to-be-received indication message to the access point, where the first triggering message is a trigger message corresponding to the first group to be received.
  • the to-be-received site is a site indicating downlink data in the TIM.
  • the message receiving unit 1401 wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message;
  • the first trigger message includes: sending time information of a trigger message corresponding to the next group to be received.
  • the station After the station receives the broadcast message, if the TIM finds that the own site has downlink cache data to be transmitted, and the first to-be-received site group information is used to learn that the own site belongs to the first site group, The sending time of the first trigger message is in an awake state, so as to receive the first trigger message.
  • the station may not perform processing.
  • the station If the station confirms that it is the to-be-received site through the TIM, and the first to-be-received site group information is used to learn that the site belongs to the non-first site group, the broadcast message does not include the to-be-received corresponding to the own site.
  • the station group information, the station to be received needs to wake up according to the sending time information of the second trigger message included in the first trigger message, and receive the second trigger message.
  • the trigger message may be a trigger message or a message in another format, which is not limited herein.
  • the trigger message may include: identifier information of the trigger message, indication information of the to-be-received site group corresponding to the trigger message, transmission time information of the next trigger message, and one or more information in the channel resource indication information; According to the actual situation, there is no limit here.
  • the triggering message may further include: channel resource indication information, where the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message, where The channel resource for sending the to-be-received indication message includes at least one channel resource unit for the to-be-received station to send the to-be-received indication message. It can be understood that, in practical applications, if the access point and the to-be-received site have previously agreed channel resources, the triggering message may not include the channel resource indication information.
  • the first determining unit 1405 determines whether the currently received trigger message includes the to-be-received station group indication information corresponding to the to-be-received station, and if not, the message receiving unit 1401 receives the next to-be-received according to the currently received trigger message.
  • the sending time information of the trigger message corresponding to the site group receives the trigger message corresponding to the next group to be received; if yes, the message sending unit 1402 uses the multi-user transmission mechanism to connect to the trigger message according to the trigger message corresponding to the to-be-received site. Incoming point to send pending indication Message.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the first channel determining unit 1407 determines, according to the preset channel resource and the to-be-received site group indication information, that the to-be-received station sends the to-be-received indication. And the channel resource corresponding to the message, and then sending the indication message to be received to the access point by using the channel resource.
  • the triggering message includes channel resource indication information
  • the second channel determining unit 1408 is configured according to the channel resource indication information and the to-be-received site group.
  • the indication information determines that the to-be-received station sends the channel resource corresponding to the to-be-received indication message, and then sends the to-be-received indication message to the access point by using the channel resource.
  • Each of the to-be-received sites in the group to be received supports the multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, and the trigger message included in the broadcast message is included.
  • the transmission time information is only the transmission time information of the first trigger message. Please refer to the embodiment of FIG. 9 , and details are not described herein again.
  • the multi-user transmission mechanism is not supported by each of the to-be-received sites in the group to be received, and the to-be-received site group information included in the broadcast message has only the first to-be-received site group information, and the sending time of the trigger message included in the broadcast message.
  • the information only has the information of the sending time of the first triggering message. Please refer to the embodiment of FIG. 11 , and details are not described herein again.
  • FIG. 14 another embodiment of the site in the embodiment of the present invention includes:
  • the message receiving unit 1401 is configured to receive a broadcast message sent by the access point, where the broadcast message includes: to be transmitted indication bitmap (TIM) information, at least two to-be-received site group information, and at least two to-be-received site groups.
  • the sending time information of the triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the same group of to-be-received stations simultaneously sends an indication to be received to the access point; a site in the TIM indicating downlink data;
  • the message receiving unit 1401 is further configured to: wake up according to the sending time information of the trigger message corresponding to the at least two groups of the to-be-received station, and send the trigger message corresponding to the to-be-received station Trigger message
  • the message sending unit 1402 is configured to send a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and using a multi-user transmission mechanism.
  • the site further includes: a first channel determining unit 1407;
  • the triggering message includes: information about the to-be-received station group, where the to-be-received site group indication information is used to indicate allocation information of a channel resource to be received by the to-be-received site group;
  • the first channel determining unit is configured to determine, according to the preset channel resource and the to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station,
  • the message sending unit is specifically configured to: send the to-be-received indication message to the access point by using the channel resource determined by the first channel determining unit.
  • the site further includes: a second channel determining unit 1408;
  • the trigger message includes: channel resource indication information, and information about the group group to be received;
  • the channel resource indication information is indication information of a channel resource for sending a to-be-received indication message to a to-be-received station group corresponding to the trigger message, where the channel resource for transmitting the to-be-received indication message includes at least one for the to-be-received
  • the station sends a channel resource unit to receive the indication message
  • the to-be-received site group indication information is used to indicate allocation information of a channel resource for sending a to-be-received indication message corresponding to a to-be-received site group;
  • the message sending unit is specifically configured to: send the to-be-received indication message to the access point by using the channel resource determined by the second channel determining unit.
  • Each of the to-be-received sites in the group to be received supports the multi-user transmission mechanism, and the to-be-received site group information included in the broadcast message is the to-be-received site group information corresponding to each to-be-received site group, and the trigger message included in the broadcast message is included.
  • the sending time information is the sending time information of the trigger message corresponding to each group to be received.
  • the working process of each unit in the embodiment of the present invention is:
  • the message receiving unit 1401 receives the broadcast message sent by the access point, where the broadcast message includes: a transmission indication bitmap, a to-be-received site group information corresponding to each to-be-received site group, and a transmission time information of a trigger message corresponding to each to-be-received site group.
  • the triggering message is used to indicate that the to-be-received station of the same to-be-received station group sends a to-be-received indication message to the access point, where the first triggering message is a trigger message corresponding to the first to-be-received station group.
  • the to-be-received station indicates that there is a downlink in the TIM. The site of the data.
  • the message structure of the broadcast message can be referred to FIG. 5.
  • the message receiving unit 1401 After receiving the broadcast message, the message receiving unit 1401 confirms the to-be-received site group to which the own site belongs and the corresponding trigger message according to the TIM and each to-be-received site group information;
  • the sending time of the first triggering message is in an awake state, and receiving the first triggering message sent by the access point;
  • the Nth trigger message is in the awake state, and receives the Nth trigger message sent by the access point, where the N is not a positive integer. .
  • the message sending unit 1402 sends a to-be-received indication message to the access point by using a multi-user transmission mechanism according to the trigger message corresponding to the to-be-received site.
  • the to-be-received sites in the to-be-received site group determine the channel resources used to send the to-be-received indication message according to the trigger message.
  • the first channel determining unit 1407 determines, according to the preset channel resource and the to-be-received site group indication information, that the to-be-received station sends the to-be-received indication. And the channel resource corresponding to the message, and then sending the indication message to be received to the access point by using the channel resource.
  • the triggering message includes channel resource indication information
  • the second channel determining unit 1408 is configured according to the channel resource indication information and the to-be-received site group.
  • the indication information determines that the to-be-received station sends the channel resource corresponding to the to-be-received indication message, and then sends the to-be-received indication message to the access point by using the channel resource.
  • FIG. 15 is a schematic structural diagram of an access point or a station according to an embodiment of the present invention.
  • the access point or site may include a transmitter 1510, a receiver 1520, a processor 1530, a memory 1540, and a bus system 1550.
  • Transmitter 1510 and receiver 1520 are used to establish a communication channel through which the access point or station can connect to a remote server and download media data from the remote server or upload media data to the remote server.
  • the transmitter 1510 and the receiver 1520 may include a wireless local area network (wireless LAN) module, a Bluetooth module, a baseband module, and the like, and a radio frequency (Radio Frequency, RF) corresponding to the communication module.
  • RF radio frequency
  • the communication module is used to control communication of components in the access point, and can support Direct Memory Access.
  • the various communication modules in the transmitter 1510 and the receiver 1520 generally appear in the form of an integrated circuit chip and can be selectively combined without including all communications.
  • Module and corresponding antenna group For example, the transmitter 1510 and receiver 1520 may include only baseband chips, radio frequency chips, and corresponding antennas to provide communication functionality in a cellular communication system.
  • the transceiver 1560 such as wireless local area network access or WCDMA access
  • the access point or station can be connected to a cellular network (Cellular Network) or the Internet (Internet).
  • a communication module, such as a baseband module, in the transmitter 1510 and receiver 1520 may be integrated into the processor 1530.
  • Memory 1540 can include read only memory and random access memory and provides instructions and data to processor 1530. A portion of memory 1540 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the processor 1530 controls the operation of the access point or site, and the processor 1530 may also be referred to as a CPU (Central Processing Unit).
  • Memory 1540 can include read only memory and random access memory and provides instructions and data to processor 1530. A portion of memory 1540 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the access point or the site are coupled together by a bus system 1550.
  • the bus system 1550 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 1550 in the figure.
  • Processor 1530 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 1530 or an instruction in a form of software.
  • the processor 1530 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, a discrete gate or transistor logic device, or discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1540, and the processor 1530 reads the information in the memory 1540 and performs the steps of the above method in combination with its hardware.
  • the processor 1530 performs the following operations by invoking an operation instruction stored in the memory 1540 (which can be stored in the operating system):
  • the processor 1530 is configured to send a broadcast message by using the transmitter 1510, where the broadcast message includes: a bitmap information to be transmitted, a first group information to be received, and a first time to send the first trigger message.
  • the first trigger message is used to indicate that the to-be-received station that supports the multi-user transmission mechanism in the first group of to-be-received stations sends a to-be-received indication message to the access point at the same time;
  • the to-be-received site is a site that indicates downlink data in the TIM; and sends the first trigger message according to the sending time information of the first trigger message;
  • the processor 1530 is further configured to receive, by the receiver 1520, a to-be-received indication message that is sent by the at least one to-be-received station in the first group of to-be-received stations according to the first trigger message and sent by using a multi-user transmission mechanism.
  • the broadcast message further includes:
  • the to-be-received site group information corresponding to at least one other to-be-received site group other than the first to-be-received site group.
  • the broadcast message further includes:
  • Trigger corresponding to at least one other group of to-be-received stations other than the first group of to-be-received stations The time when the message was sent.
  • the to-be-received site group information includes:
  • the identification information of the to-be-received site of the to-be-received site group or the identification information of the to-be-received site at the end of the to-be-received site group.
  • the broadcast message further includes:
  • the number of sites to be received included in the group to be received is the number of sites to be received included in the group to be received.
  • the trigger message includes:
  • the transmission time information of the trigger message corresponding to the next to-be-received site group is the transmission time information of the trigger message corresponding to the next to-be-received site group.
  • the trigger message includes: information about the group group to be received;
  • the to-be-received site group indication information includes: a start association identifier or a to-be-received site group identifier information, where the start association identifier is an association identifier of a to-be-received site with the smallest association identifier in the to-be-received site corresponding to the trigger message. ;
  • the to-be-received site group indication information includes: a site type indication bit table, where each bit in the site type indication bit table corresponds to one to-be-received site in the to-be-received site group corresponding to the trigger message, the site type Each bit in the indication bit table is used to indicate whether the corresponding to-be-received station can send the to-be-received indication message.
  • the to-be-received site group indication information is used to indicate allocation information of channel resources of a to-be-received indication message corresponding to a to-be-received site group.
  • the trigger message includes:
  • the channel resource indication information is indication information of a channel resource to be received by the to-be-received station group corresponding to the trigger message
  • the channel resource for sending the to-be-received indication message includes at least one And transmitting, to the to-be-received station, a channel resource unit to receive an indication message.
  • the processor 1530 performs the following operations by invoking an operational instruction stored in the memory 1540 (which can be stored in the operating system):
  • the processor 1530 is configured to receive, by the receiver 1520, a broadcast message sent by an access point,
  • the broadcast message includes: a to-be-transmitted indication bitmap (TIM) information, a first to-be-received site group information, and a first time-to-received site group corresponding to the first trigger message;
  • the first The triggering message is used to indicate that the to-be-received station supporting the multi-user transmission mechanism in the first group of to-be-received stations simultaneously sends an indication to be received to the access point;
  • the to-be-received station indicates that the downlink is in the TIM.
  • the site of the data and according to the sending time information of the first trigger message, wake up when the corresponding trigger message is sent, and receive the trigger message corresponding to the first trigger message;
  • the processor 1530 is configured to send, by using the transmitter 1510, a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and using a multi-user transmission mechanism.
  • the processor 1530 is further configured to determine, according to the TIM and the first to-be-received site group information, a to-be-received site group and a trigger message corresponding to the to-be-received site.
  • the broadcast message further includes: to-be-received site group information corresponding to each to-be-received site group except the first to-be-received site group;
  • the site also includes:
  • the processor 1530 is further configured to determine, according to the TIM and the to-be-received site group information corresponding to each to-be-received site group, the to-be-received site group and the trigger message corresponding to the to-be-received site.
  • the trigger message includes: sending time information of a trigger message corresponding to the next group to be received;
  • the receiver 1520 wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message;
  • the processor 1530 determines whether the currently received trigger message is a trigger message corresponding to the to-be-received site, and if so, stops the process of receiving the trigger message; if not, performs step 3);
  • the receiver 1520 receives the trigger message corresponding to the next to-be-received station group according to the sending time information of the trigger message corresponding to the next to-be-received station group included in the currently received trigger message, and performs step 2).
  • the trigger message includes: information about the to-be-received site group and the sending time information of the trigger message corresponding to the next group to be received;
  • the receiver 1520 wakes up when the first trigger message is sent according to the sending time information of the first trigger message, and receives the first trigger message;
  • the processor 1530 determines whether the currently received trigger message includes the to-be-received station Point corresponding to the receiving station group indication information, if not, proceed to step 3); if yes, proceed to step 4);
  • the receiver 1520 receives the trigger message corresponding to the next to-be-received station group according to the sending time information of the trigger message corresponding to the next to-be-received station group included in the currently received trigger message, and performs step 2);
  • the receiver 1520 determines that the currently received trigger message is a trigger message corresponding to the to-be-received station, and stops receiving the trigger message.
  • the triggering message includes: the to-be-received site group indication information, where the to-be-received site group indication information is used to indicate allocation information of a channel resource of the to-be-received indication message corresponding to the to-be-received site group;
  • the processor 1530 is further configured to determine, according to the preset channel resource and the to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station,
  • the transmitter 1510 is specifically configured to send, by using the channel resource determined by the first channel determining unit, a to-be-received indication message to the access point.
  • the trigger message includes: channel resource indication information, and the group group indication information to be received;
  • the channel resource indication information is indication information of a channel resource for sending a to-be-received indication message to a to-be-received station group corresponding to the trigger message, where the channel resource for transmitting the to-be-received indication message includes at least one for the to-be-received
  • the station sends a channel resource unit to receive the indication message
  • the to-be-received site group indication information is used to indicate allocation information of a channel resource for sending a to-be-received indication message corresponding to a to-be-received site group;
  • the processor 1530 further determines, according to the channel resource indication information and the to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station;
  • the transmitter 1510 is specifically configured to send, to the access point, a to-be-received indication message by using the channel resource determined by the second channel determining unit.
  • the processor 1530 performs the following operations by invoking an operation instruction stored in the memory 1540 (which can be stored in the operating system):
  • the processor 1530 is configured to receive, by using the receiver 1520, a broadcast message sent by an access point, where the broadcast message includes: To be transmitted indication bitmap (TIM) information, at least two to-be-received site group messages.
  • TIM To be transmitted indication bitmap
  • the to-be-received site is a site indicating downlink data in the TIM; and according to the sending time information of the trigger message corresponding to the at least two to-be-received site groups, Trigger when the trigger message is sent, and receive its corresponding trigger message;
  • the processor 1530 is configured to send, by using the transmitter 1510, a to-be-received indication message to the access point according to the trigger message corresponding to the to-be-received site, and using a multi-user transmission mechanism.
  • the triggering message includes: the to-be-received site group indication information, where the to-be-received site group indication information is used to indicate allocation information of a channel resource of the to-be-received indication message corresponding to the to-be-received site group;
  • the processor 1530 is further configured to determine, according to the preset channel resource and the to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station,
  • the transmitter 1510 is specifically configured to send, by using the channel resource determined by the first channel determining unit, a to-be-received indication message to the access point.
  • the trigger message includes: channel resource indication information, and the group group indication information to be received;
  • the channel resource indication information is indication information of a channel resource for sending a to-be-received indication message to a to-be-received station group corresponding to the trigger message, where the channel resource for transmitting the to-be-received indication message includes at least one for the to-be-received
  • the station sends a channel resource unit to receive the indication message
  • the to-be-received site group indication information is used to indicate allocation information of a channel resource for sending a to-be-received indication message corresponding to a to-be-received site group;
  • the processor 1530 further determines, according to the channel resource indication information and the to-be-received site group indication information, the channel resource corresponding to the to-be-received indication message sent by the to-be-received station;
  • the transmitter 1510 is specifically configured to send, to the access point, a to-be-received indication message by using the channel resource determined by the second channel determining unit.
  • the disclosed apparatus and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features are available To ignore, or not execute.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

一种待接收指示消息传输方法，包括：接入点发送广播消息，所述广播消息包括：待传输指示位图信息，第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；所述接入点根据所述第一触发消息的发送时间信息发送所述第一触发消息；所述接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息并使用多用户传输机制发送的待接收指示消息。

Description

一种待接收指示消息传输方法及装置 技术领域
本发明涉及通信领域，尤其涉及一种待接收指示消息传输方法及装置。
背景技术
在无线局域网中，为了省电，站点通常工作于省电模式，当站点工作于省电模式时，其工作状态按照一定的规则在苏醒(Awake)状态与睡眠(Doze)状态之间交替转换。当处于Doze状态时，站点的电量消耗可以降到很低，但无法接收接入点发送的消息。
为了使接入点能够及时将到达的数据尽快发送给站点，当前的无线保真(WiFi，WIreless-FIdelity)802.11标准中定义了数据传输指示图(TIM，Traffic Indication Map)下行数据传输机制。根据TIM机制，工作于省电模式的站点需要周期性苏醒，以接收接入点广播的广播消息，接入点通过周期性广播的广播消息中的TIM字段，向站点指示是否有缓存的数据等待发送给站点。具体的，TIM字段由一些二进制位组成，每一个二进制位的序号与站点的关联标识(AID，Association identifier)对应，当某一位设置为1时，表示相应AID的站点在接入点有缓存的数据，当站点通过广播消息发现在接入点有缓存的数据时，便在接收到该广播消息之后，在空闲信道中以自由竞争的方式向接入点发送省电轮询(PS-Poll，Power Save poll)待接收指示消息，然后处于苏醒状态，等待接收接入点下发的数据，直到接收完数据后再进入省电的睡眠状态。
在现有技术中，接入点可以将TIM中的多个指示位设置为“1”，同时向多个站点指示有缓存的数据，这时将有多个站点同时以自由竞争信道的方式向接入点发送PS-Poll消息，其中，信道自由竞争机制的大致流程为：站点先侦听信道是否空闲，如果信道空闲时间超过一定时间(如AIFS，arbitration interframe space，仲裁帧间隔)，站点则启动一个退避机制，即在设定的最小退避时间与最大退避时间之间随机选择一个退避时间值(以Time slot为单位)，同时启动一个倒计时定时时钟(以Time slot为单位)，当信道空闲时间累计达到站点选择的退避时间值时，则倒计时定时时钟减为0，触发站点向接入点发送PS-Poll消息。
通过上述的信道自由竞争过程可以看出，当两个站点碰巧随机选择了相同的退避时间值时，将导致这两个站点同时发送的PS-Poll消息冲突，这种情况下站点将重新进行信道竞争。由于多个站点的信道竞争是在整个接入点工作信道上进行的，显然，PS-Poll消息的冲突必然造成整个信道资源的浪费。
发明内容
本发明实施例提供了一种待接收指示消息传输方法及装置，用于多个站点同步向接入点发送待接收指示消息。
本发明实施例第一方面提供的待接收指示消息传输方法，包括：
接入点发送广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述接入点根据所述第一触发消息的发送时间信息发送所述第一触发消息；
所述接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息并使用多用户传输机制发送的待接收指示消息。
在第一方面的第一种可能实现的方法中，所述待接收站点组信息包括：
所述待接收站点组的起始待接收站点的标识信息，或所述待接收站点组的末尾待接收站点的标识信息。
在第一方面的第二种可能实现的方法中，所述广播消息还包括：
待接收站点组包含的待接收站点数量信息。
在第一方面的第三种可能实现的方法中，所述第一触发消息包括：
第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息。
在第一方面的第四种可能实现的方法中，
所述第一触发消息包括：第一待接收站点组指示信息；
所述第一待接收站点组指示信息包括：第一起始关联标识或第一待接收站 点组标识信息，所述第一起始关联标识为所述第一待接收站点组内关联标识最小的一个待接收站点的关联标识；
和/或，
所述第一待接收站点组指示信息包括站点类型指示位表，所述站点类型指示位表中的每一位对应所述第一待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示对应的待接收站点能否发送所述待接收指示消息。
结合第一方面的第四种可能实现的方法，在第五种可能实现的方法中，所述第一待接收站点组指示信息包括：指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息。
结合第一方面以及第一方面的第一至五任意一种可能实现的方法，在第六种可能实现的方法中，所述第一触发消息包括：
第一信道资源指示信息，所述第一信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元。
本发明实施例第二方面提供的待接收指示消息传输方法，包括：
待接收站点接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述待接收站点根据所述第一触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
所述待接收站点根据所述待接收站点对应的触发消息并使用多用户传输机制向所述接入点发送待接收指示消息。
在第二方面的第一种可能实现的方法中，所述接收所述待接收站点对应的触发消息之前，包括：
所述待接收站点根据所述TIM和所述第一待接收站点组信息确定所述待 接收站点对应的待接收站点组及触发消息；
所述待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
所述待接收站点确定所述第一触发消息为所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
在第二方面的第二种可能实现的方法中，
所述广播消息还包括：除所述第一待接收站点组之外的各个待接收站点组对应的待接收站点组信息；
所述接收所述待接收站点对应的触发消息之前，包括：
所述待接收站点根据所述TIM和各个待接收站点组对应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息；
所述第一触发消息包括：第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
所述待接收站点根据所述第一触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息，包括：
所述待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
所述待接收站点判断第一触发消息是否为所述待接收站点对应的触发消息，若是，则使用多用户传输机制向所述接入点发送待接收指示消息；若否，则所述待接收站点根据所述第一触发消息中包括的第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
在第二方面的第三种可能实现的方法中，
所述第一触发消息包括：第一待接收站点组指示信息和第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
所述待接收站点根据所述第一触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息，包括：
所述待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息 发送时苏醒，并接收所述第一触发消息；
所述待接收站点判断所述第一触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则所述待接收站点根据所述第一触发消息中包括的第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息；若是，则使用多用户传输机制向所述接入点发送待接收指示消息。
在第二方面的第四种可能实现的方法中，
所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述待接收站点根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示消息，包括：
所述待接收站点根据所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
在第二方面的第五种可能实现的方法中，
所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
所述信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述待接收站点根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息，包括：
所述待接收站点根据所述第一信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
本发明实施例第三方面提供的待接收指示消息传输方法，包括：
待接收站点接收接入点发送的广播消息，所述广播消息包括：待传输指示 位图TIM信息、至少两个待接收站点组信息和至少两个待接收站点组对应的触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述待接收站点根据所述至少两个待接收站点组对应的触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
所述待接收站点根据所述待接收站点对应的触发消息并使用多用户传输机制向所述接入点发送待接收指示消息。
在第三方面的第一种可能实现的方法中，
所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述待接收站点根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息，包括：
所述待接收站点根据所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
在第三方面的第二种可能实现的方法中，
所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
所述信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述待接收站点根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息，包括：
所述待接收站点根据所述信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
本发明实施例第四方面提供的接入点，包括：
发送单元，用于发送广播消息，所述广播消息包括：待传输指示位图TIM信息，第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述发送单元还用于根据所述第一触发消息的发送时间信息发送所述第一触发消息；
接收单元，用于接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息。
在第四方面的第一种可能实现的方法中，所述待接收站点组信息包括：
所述待接收站点组的起始待接收站点的标识信息，或所述待接收站点组的末尾待接收站点的标识信息。
在第四方面的第二种可能实现的方法中，所述广播消息还包括：
待接收站点组包含的待接收站点数量信息。
在第四方面的第三种可能实现的方法中，所述第一触发消息包括：
第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息。
在第四方面的第四种可能实现的方法中，
所述第一触发消息包括：第一待接收站点组指示信息；
所述第一待接收站点组指示信息包括：第一起始关联标识或第一待接收站点组标识信息，所述第一起始关联标识为所述第一待接收站点组内关联标识最小的一个待接收站点的关联标识；
和/或，
所述第一待接收站点组指示信息包括：站点类型指示位表，所述站点类型 指示位表中的每一位对应所述第一待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示相应的待接收站点能否发送所述待接收指示消息。
结合第四方面的第四种可能实现的方法，在第五种可能实现的方法中，所述第一待接收站点组指示信息还包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息。
结合第四方面以及第四方面的第一至五任意一种可能实现的方法，在第六种可能实现的方法中，所述第一触发消息包括：
第一信道资源指示信息，所述第一信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元。
本发明实施例第五方面提供的站点，包括：
消息接收单元，用于接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述消息接收单元还用于根据所述第一触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
消息发送单元，用于根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息。
在第五方面的第一种可能实现的方法中，
第一确定单元，用于根据所述TIM和所述第一待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息。
在第五方面的第二种可能实现的方法中，
所述广播消息还包括：除所述第一待接收站点组之外的至少两个待接收站点组对应的待接收站点组信息；
所述站点还包括：
第二确定单元，用于根据所述TIM和至少两个待接收站点组对应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息；
所述站点还包括：第一判断单元；
所述第一触发消息包括：第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
所述第一判断单元用于在所述消息接收单元根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒并接收所述第一触发消息之后，判断所述第一触发消息是否为所述待接收站点对应的触发消息；
所述消息发送单元具体用于当所述第一触发消息是为所述待接收站点对应的触发消息时，根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息；
所述消息接收单元还用于当所述第一触发消息不是为所述待接收站点对应的触发消息时，根据所述第一触发消息中第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
在第五方面的第三种可能实现的方法中，
所述站点还包括：第二判断单元；
所述第一触发消息包括：第一待接收站点组指示信息和第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
所述第二判断单元用于在所述消息接收单元根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒并接收所述第一触发消息之后，判断所述第一触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息所述消息发送单元具体用于当所述第一触发消息中包括有所述待接收站点对应的待接收站点组指示信息时，根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息；
所述消息接收单元还用于当所述第一触发消息中没有有包括所述待接收站点对应的待接收站点组指示信息时，根据所述第一触发消息中第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
在第五方面的第四种可能实现的方法中，
所述站点还包括：第一信道确定单元；
所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述第一信道确定单元用于所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，
所述消息发送单元具体用于：使用第一信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
在第五方面的第五种可能实现的方法中，
所述站点还包括：第二信道确定单元；
所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
所述第一信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述第二信道确定单元根据所述第一信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述消息发送单元具体用于：使用所述第二信道确定单元确定的所述信道资源，并使用多用户传输机制向所述接入点发送待接收指示消息。
本发明实施例第六方面提供的站点，包括：
消息接收单元，用于接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息至少两个待接收站点组信息，至少两个待接收站点组对应的触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在 所述TIM中指示有下行数据的站点；
所述消息接收单元还用于根据所述至少两个待接收站点组对应的触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
消息发送单元，用于根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
在第六方面的第一种可能实现的方法中，
所述站点还包括：第一信道确定单元；
所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述第一信道确定单元用于根据所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述消息发送单元具体用于：使用第一信道确定单元确定的所述信道资源，并使用多用户传输机制向所述接入点发送待接收指示消息。
在第六方面的第二种可能实现的方法中，
所述站点还包括：第二信道确定单元；
所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
所述第一信道资源指示信息第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述第二信道确定单元根据所述信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述消息发送单元具体用于：使用所述第二信道确定单元确定的所述信道资源，使用多用户传输机制向所述接入点发送待接收指示消息。
本发明实施例第七方面提供的接入点，包括：
发射器，接收器和处理器；
所述处理器用于通过所述发射器发送广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据所述第一触发消息的发送时间信息发送所述第一触发消息；
所述处理器还用于通过所述接收器接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息。
本发明实施例第八方面提供的站点，包括：发射器，接收器和处理器；
所述处理器用于通过所述接收器接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据所述第一触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
所述处理器用于通过所述发射器根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
本发明实施例第九方面提供的站点，包括：发射器，接收器和处理器；
所述处理器用于通过所述接收器接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、至少两个待接收站点组信息和至少两个待接收站点组对应的触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据自己对应的触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
所述处理器用于通过所述发射器根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
从以上技术方案可以看出，本发明实施例具有以下优点：
在本发明实施例中，接入点与站点之间工作的无线信道频谱被划分成多个子信道，当接入点向站点发送广播消息时，所述广播消息中包括第一待接收站点组信息以及第一触发消息的发送时间信息；所述第一待接收站点组信息用于指示第一待接收站点组中待接收站点的分组信息，其中，所述无线信道频谱中的一个子信道可以被一个待接收站点组中支持多种用户机制的一个待接收站点使用，因此，待接收站点组中每一个支持多用户传输机制的站点可以选择一个所述子信道进行待接收指示消息的发送，接入点可以同时接收多个站点发送的消息。
在接入点第一待接收站点组发送第一触发消息之后，第一待接收站点组中每个支持多用户传输机制多用户传输机制的站点就会根据所述第一触发消息的指示，统一向接入点发送待接收指示消息。在本发明实施例中，接入点可以通过多用户传输机制统一接收多个站点同时发送的待接收指示消息，避免了在信道自由竞争过程中因为消息冲突带来的信道资源的浪费。
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，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图2为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图3为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图4为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图5为本发明实施例中广播消息的一个数据结构示意图；
图6为本发明实施例中触发消息的一个数据结构示意图；
图7为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图8为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图9为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图10为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图11为本发明实施例中待接收指示消息传输方法的另一个流程示意图；
图12为本发明实施例中触发消息的另一个数据结构示意图；
图13为本发明实施例中接入点的一个结构示意图；
图14为本发明实施例中站点的一个结构示意图；
图15为本发明实施例中基于待接收指示消息传输方法的计算机结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅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。
本发明实施例应用于无线局域网中接入点向站点传输下行数据的场景。在该无线局域网工作的场景中，站点大部分时间处于睡眠状态，接入点与站点约定时间，站点周期的苏醒以接收接入点发送的广播消息，所述广播消息中包含有TIM字段，具体的，TIM字段由一些二进制位组成，每一个二进制位的序号与待接收站点的AID对应，当某一位设置为1时，表示相应AID的站点在接入点中有缓存的数据，需要苏醒并下载该缓存的数据。当站点接收到所述广播消息时，发现所述广播消息的TIM字段中与自身对应的指示位设置为1，则站点需要向所述接入点发送待接收指示消息，以表示该站点当前处于苏醒状态可以接收缓存数据，并请求接入点分配下发缓存数据的信道资源，并在对应的信道资源上发送下行缓存数据。
在实际应用中，由于接入点同时会为多个站点缓存数据，因此，就会产生多个站点向接入点发送待接收指示消息的需求，在这个过程中，就会涉及到用于多个站点发送待接收指示消息的信道资源分配的问题，具体的，请参阅以下实施例。
本发明待接收指示消息传输方法的一个实施例，该方法可以包括：接入点发送广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收 站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；所述接入点根据所述第一触发消息的发送时间信息发送所述第一触发消息；所述接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息并使用多用户传输机制发送的待接收指示消息。
需要说明的是，在本发明的实施例中，待接收站点组与触发消息一一对应，即第一待接收站点组对应所述第一触发消息，第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；同理，第二待接收站点组对应所述第二触发消息，第二触发消息用于指示所述第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息，以此类推。
并且，第二待接收站点组可以指的是所述第一待接收站点组的下一个待接收站点组，或除所述第一待接收站点组之外的任一待接收站点组，此处具体不作限定。
示例性的，第一触发消息可以包括：第一待接收站点组指示信息，或第一待接收站点组标识信息；所述第一起始关联标识为所述第一待接收站点组内关联标识最小的一个待接收站点的关联标识。同理，可以理解的是，任一触发消息中所述包含的待接收站点组指示信息或待接收站点组标识信息，都与承载所述待接收站点组指示信息或待接收站点组标识信息的触发消息相对应(如，第二触发消息包括第二待接收站点组指示信息)。
进一步的，第一待接收站点组指示信息包括：指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息。同理，在第二待接收站点组指示信息中，包括指示第二待接收站点组对应的待接收指示消息的信道资源的分配信息，以此类推。
进一步的，所述第一触发消息还包括：第一信道资源指示信息，所述第一信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述信道资源包括用于所述第一待接收站点组的待接收站点发送待接 收指示消息的信道资源单元。同理，所述第二触发消息包括有第二信道资源指示信息，所述第二信道资源指示信息为第二待接收站点组发送待接收指示消息的信道资源的指示信息，以此类推。
请参阅图1，本发明实施例中待接收指示消息传输方法的一个实施例包括：
101、接入点发送广播消息；
接入点向待接收站点发送广播消息，所述广播消息包括：传输指示位图，第一待接收站点组信息，第一触发消息的发送时间信息；所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
具体的，所述第一触发消息为第一待接收站点组对应的触发消息。进一步的，在本发明实施例中，第二触发消息为第二待接收站点组对应的触发消息，如此类推。
可选的，待接收站点组信息可以是：待接收站点组的起始待接收站点的标识信息，或待接收站点组的末尾待接收站点的标识信息，以及待接收站点组包含的站点数量信息，所述待接收站点的标识包括但不限于：待接收站点的关联标识、待接收站点对应的TIM中的“1”的次序编号、待接收站点的媒体接入控制(MAC，Medium Access Control)地址等中的一个或多个；所述待接收站点组包含的站点数量信息具体包括，可以用一个数量指示每个待接收站点组包含相同数量的站点，此时每个待接收站点组包含的待接收站点数量即为所指示的数量，还可以针对每个待接收站点组分别指示每个待接收站点组包含的待接收站点数量信息，此时每个待接收站点组的数量可以相同也可以不同。
所述发送时间信息用于指示所述接入点发送相应触发消息的时间。
在本发明实施例中，将接入点与待接收站点之间工作的无线信道频谱，划分为若干个正交的子载波，将一个或多个子载波组成一个子信道。将待接收站点在一个上行子信道上发送待接收指示消息所需要的时间，连同所述子信道称为一个发送待接收指示消息的信道资源单元(即包括子信道对应的频谱及发送消息所需要的时间等)。
具体的，广播消息可以为实际应用中的信标(Beacon)消息，也可以为其它格式的消息，具体此处不作限定。
具体的，所述TIM用于表示各个站点当前是否有数据缓存在接入点；进一步的，所述TIM可以为一段二进制序列，所述二进制序列中的每一位分别对应每个站点的AID，当其中一位二进制数设置为“1”时，表示相应的站点有数据缓存在接入点；当其中一位二进制数设置为“0”时，表示相应的站点没有数据缓存在接入点。在本发明实施例中，TIM中的标志位设置为“1”的站点为待接收站点。
具体的，所述第一待接收站点组信息用于指示第一待接收站点组中待接收站点的分组信息，其中，所述无线信道频谱中的一个子信道可以被一个待接收站点组中支持多个用户传输机制(如正交频分多址传输机制)的一个待接收站点使用，因此，待接收站点组中每一个支持多用户传输机制的站点可以选择一个所述子信道进行待接收指示消息的发送，接入点可以用多用户传输机制同时接收多个支持多用户传输机制的站点发送的消息。多用户传输机制
具体的，所述广播消息中至少包括第一待接收站点组的信息以及对应的触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，其中，每一个待接收站点组对应一个触发消息，所述第一触发消息为第一待接收站点组对应的触发消息。可选的，所述广播消息可以包括：除所述第一待接收站点组之外的至少一个其它待接收站点组的信息以及对应的触发消息的发送时间信息。
具体的，所述待接收指示消息为待接收站点向接入点发送的指示消息，用于表示待接收站点当前处于苏醒状态可以接收下行的缓存数据，并请求接入点分配传输下行数据的信道资源，然后在下行信道资源上接收下行的数据。可选的，所述待接收指示消息可以为PS-Poll消息。
具体的，所述多用户传输机制指的是多个待接收站点在一定的频谱资源上以频分多址(如正交频分多址)或多用户(多输入多输出)的传输方式，同时与一个接入点进行通讯。所述多用户传输机制包括但不限于：正交频分多址(OFDMA，Orthogonal Frequency Division Multiple Access)机制，多输入多输出多用户传输机制(MU MIMO，Multi User MIMO(Multi-Input Multi-Output))。
102、接入点根据所述第一触发消息的发送时间信息发送第一触发消息；
具体的，在站点接收到所述广播消息之后，若通过所述TIM发现自身站 点有下行缓存数据需要传输，且通过所述第一待接收站点组信息获知自身站点属于第一站点组，则在所述第一触发消息的发送时间处于苏醒状态，以便于接收所述第一触发消息。可选的，若站点通过所述TIM发现自身站点没有下行缓存数据需要传输，则可以不进行处理；若站点通过所述第一待接收站点组信息获知自身站点属于非第一站点组，则需要接收与自己所在的待接收站点组对应的触发消息。。
具体的，所述触发消息可以为trigger消息，也可以为其它格式的消息，具体此处不作限定。可选的，所述触发消息可以包括：触发消息的标识信息、对应触发消息的待接收站点组信息、下一个触发消息的发送时间信息、信道资源指示信息中的一个或多个信息；具体根据实际情况而定，此处不作限定。
在本发明实施例中，在接入点发送所述广播消息之前，可以根据实际需求，设定好每一条触发消息的发送时间信息；并且，若在实际应用过程中情况有变(如，发生了延时)，也可以动态的调整未发送的触发消息的发送时间信息。因此，在实际应用过程中，可以在广播消息中仅设定第一触发消息的发送时间信息，或每一待接收站点组对应的触发消息的发送时间信息；在发送触发消息时，触发消息中可以包括，或不包括下一条触发消息的发送时间信息，具体根据实际情况而定，此处不作限定。示例性的，当广播消息中包括有各个触发消息的发送时间信息时，所述触发消息可以不包括下一条触发消息的发送时间信息；当广播消息中没有包括各个触发消息的发送时间信息时，所述触发消息可以包括下一条触发消息的发送时间信息。
103、接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息；
具体的，在待接收站点接收到所述第一触发消息之后，根据所述第一触发消息确定发送待接收指示消息的时间。可选的，在实际应用中，待接收站点可以与接入点预先约定一个时长，如短帧间隔的时间，在接收到第一触发消息之后，再经过所述约定时长之后，各个待接收站点同时向接入点发送待接收指示消息。可选的，所述第一触发消息也可以包括一个待接收指示消息的发送指示信息，各个待接收站点根据所述待接收指示消息的发送指示信息的指示，确定统一发送接收指示消息的时间，示例性的，待接收指示消息的发送指示信息为 14点15分01秒，则各个第一待接收站点组中的待接收站点在接收到所述第一触发消息之后，统一在14点15分01秒这个时间向接入点发送待接收指示消息。
104、接入点向待接收站点发送资源分配信息。
接入点向待接收站点发送资源分配信息，所述分配消息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
在接入点第一待接收站点组发送第一触发消息之后，第一待接收站点组中每个支持多用户传输机制多用户传输机制的站点就会根据所述第一触发消息的指示，同时向接入点发送待接收指示消息。在本发明实施例中，接入点可以通过多用户机传输制统一接收多个站点同时发送的待接收指示消息，避免了在信道自由竞争过程中因为消息冲突带来的信道资源的浪费。
在接入点侧，设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，请参阅图2，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
201、接入点发送广播消息；
当接入点中缓存了多个待接收站点的数据时，接入点发送广播消息，所述广播消息包括：传输指示位图，第一待接收站点组信息，第一触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
202、接入点根据所述第一触发消息的发送时间信息发送第一触发消息；
所述第一触发消息包括：第二待接收站点组对应的触发消息的发送时间信息。
具体的，在站点接收到所述广播消息之后，若通过所述TIM发现自身站点有下行缓存数据需要传输，且通过所述第一待接收站点组信息获知自身站点属于第一站点组，则在所述第一触发消息的发送时间处于苏醒状态，以便于接收所述第一触发消息。可选的，若站点通过所述TIM发现自身站点没有下行 缓存数据需要传输，则可以不进行处理。
若站点通过所述TIM确认自身为待接收站点，且通过所述第一待接收站点组信息获知自身站点属于非第一站点组，由于所述广播消息中并没有包括与自身站点对应的待接收站点组信息，因此，该待接收站点则需要根据所述第一触发消息中包括的第二触发消息的发送时间信息，在第二触发消息的发送时苏醒，并接收所述第二触发消息。
具体的，所述触发消息可以为trigger消息，也可以为其它格式的消息，具体此处不作限定。可选的，所述触发消息可以包括：触发消息的标识信息、对应触发消息的待接收站点组指示信息、下一个触发消息的发送时间信息、信道资源指示信息中的一个或多个信息；具体根据实际情况而定，此处不作限定。
可选的，所述触发消息还可以包括：信道资源指示信息；所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。可以理解的是，在实际应用中，若接入点与待接收站点事先约定了信道资源，则触发消息中可以不包括信道资源指示信息。
203、接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
具体的，若接入点与待接收站点约定了信道资源，则待接收站点根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，再使用所述信道资源向所述接入点发送待接收指示消息。
可选的，若接入点与待接收站点没有约定信道资源，则触发消息中就会包括有信道资源指示信息；待接收站点根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，再使用所述信道资源向所述接入点发送待接收指示消息。
204、接入点向第一待接收站点组中的待接收站点发送资源分配信息；
接入点向第一待接收站点组中的待接收站点发送资源分配信息，所述分配信息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
205、接入点发送第二触发消息；
可以理解的是，步骤205发生在步骤202之后，但与步骤203和204没有严格的时序关系。
具体的，所述第二触发消息可以包括：待接收站点组指示信息，以及第二待接收站点组对应的触发消息的发送时间信息。
所述待接收站点组指示信息包括：起始关联标识或待接收站点组标识信息，所述起始关联标识为所述触发消息对应的待接收站点中关联标识最小的一个待接收站点的关联标识；进一步的，还可以包括待接收站点组的待接收站点数量信息；可选的，每个待接收站点组中的待接收站点数量可以一样，也可以不一样，也就是待接收站点数量信息具体包括，可以用一个数量指示每个待接收站点组包含相同数量的站点，此时每个待接收站点组包含的待接收站点数量即为所指示的数量，还可以针对每个待接收站点组分别指示每个待接收站点组包含的待接收站点数量信息，此时每个待接收站点组的数量可以相同也可以不同。
和/或，
所述待接收站点组指示信息包括：站点类型指示位表，所述站点类型指示位表中的每一位对应所述触发消息对应的待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示相应的待接收站点能否发送所述待接收指示消息。
示例性的，在待接收站点接收到所述触发消息之后：
1)所述待接收站点判断当前接收的触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则执行步骤2)；若是，则执行步骤3)；
2)所述待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息，并执行步骤1)；
3)所述待接收站点确定当前接收的触发消息为所述待接收站点对应的触发消息。
206、接入点接收所述第二待接收站点组中至少一个待接收站点根据所述第二触发消息，并使用多用户传输机制发送的待接收指示消息；
可选的，如果有多个待接收站点组，接入点则可以根据上述方法，继续发送触发消息并接收待接收指示消息。
207、接入点向第二待接收站点组中的待接收站点发送资源分配信息。
接入点向第二待接收站点组中的待接收站点发送资源分配信息，所述分配消息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
在站点侧，设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，请参阅图3，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
301、待接收站点接收接入点发送的广播消息；
待接收站点接收接入点发送的广播消息，所述广播消息包括：传输指示位图，第一待接收站点组信息，第一触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
具体的，所述第一触发消息为第一待接收站点组对应的触发消息。进一步的，在本发明实施例中，第二触发消息为第二待接收站点组对应的触发消息，如此类推。
示例性的，站点在收到所述广播消息之后，查看所述广播消息中的TIM，若TIM中与站点相对应的二进制为“0”，则站点无需进行处理；若TIM中与站点相对应的二进制为“1”，则确认所述站点为待接收站点，执行步骤302。
302、待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
具体的，所述第一触发消息包括：第二待接收站点组对应的触发消息的发 送时间信息。
具体的，在站点接收到所述广播消息之后，若通过所述TIM发现自身站点有下行缓存数据需要传输，且通过所述第一待接收站点组信息获知自身站点属于第一站点组，则在所述第一触发消息的发送时间处于苏醒状态，以便于接收所述第一触发消息。可选的，若站点通过所述TIM发现自身站点没有下行缓存数据需要传输，则可以不进行处理。
若站点通过所述TIM确认自身为待接收站点，且通过所述第一待接收站点组信息获知自身站点属于非第一站点组，由于所述广播消息中并没有包括与自身站点对应的待接收站点组信息，因此，该待接收站点则需要根据所述第一触发消息中包括的第二触发消息的发送时间信息，在第二触发消息的发送时苏醒，并接收所述第二触发消息。
具体的，所述触发消息可以为trigger消息，也可以为其它格式的消息，具体此处不作限定。可选的，所述触发消息可以包括：触发消息的标识信息、对应触发消息的待接收站点组指示信息、下一个触发消息的发送时间信息、信道资源指示信息中的一个或多个信息；具体根据实际情况而定，此处不作限定。
可选的，所述触发消息还可以包括：信道资源指示信息；所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。可以理解的是，在实际应用中，若接入点与待接收站点事先约定了信道资源，则触发消息中可以不包括信道资源指示信息。
303、待接收站点判断当前接收的触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息；
待接收站点判断当前接收的触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则执行步骤304；若是，则待接收站点确定当前接收的触发消息为所述待接收站点对应的触发消息，执行步骤305。
在实际应用中，若广播消息中没有包括各个待接收站点组对应的待接收站点组信息，且没有包括各个待接收站点组对应的触发消息的发送时间；则接入点发送的相应触发消息中会包括有相应的待接收站点组指示信息和第二待接 收站点组对应的触发消息的发送时间信息。
所述待接收站点组指示信息包括：起始关联标识或待接收站点组标识信息，所述起始关联标识为所述触发消息对应的待接收站点中关联标识最小的一个待接收站点的关联标识；进一步的，还可以包括待接收站点组的待接收站点数量信息；可选的，每个待接收站点组中的待接收站点数量可以一样，也不一定都一样，也就是待接收站点数量信息，可以只包含一个数量用于表示每个待接收站点分组包含相同数量的站点，或包含多个数量，对应多个待接收站点分组各自包含的不同的站点数量。
和/或，
所述待接收站点组指示信息包括：站点类型指示位表，所述站点类型指示位表中的每一位对应所述触发消息对应的待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示相应的待接收站点能否发送所述待接收指示消息。
304、待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息；
待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息，并执行步骤303。
305、待接收站点根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
具体的，若接入点与待接收站点约定了信道资源，则待接收站点根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，再使用所述信道资源向所述接入点发送待接收指示消息。
可选的，若接入点与待接收站点没有约定信道资源，则触发消息中就会包括有信道资源指示信息；待接收站点根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资 源，再使用所述信道资源向所述接入点发送待接收指示消息。
306、待接收站点接收接入点发送的资源分配信息。
待接收站点接收接入点发送的资源分配信息，并在所述分配消息指示的信道资源中下载所述缓存数据。
在接入点侧，设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息为各个待接收站点组对应的触发消息的发送时间信息，请参阅图4，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
401、接入点发送广播消息；
当接入点中缓存了多个待接收站点的数据时，接入点发送广播消息，所述广播消息包括：传输指示位图，各个待接收站点组对应的待接收站点组信息，各个待接收站点组对应的触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
示例性的，所述广播消息的消息结构可以参阅图5，在图5中，TIM为多位的二进制序列，所述二进制序列中的每一位分别对应每个待接收站点的AID，当其中一位二进制数设置为“1”时，表示相应的待接收站点有数据缓存在接入点；当其中一位二进制数设置为“0”时，表示相应的待接收站点没有数据缓存在接入点。Trigger IE(Information elements)为触发消息的信息元素，Trigger IE中包括有待接收站点组信息(如图中的Group1、Group2等)以及相应待接收站点组的触发消息的发送时间信息(如图中的Trigger time1、Trigger time2等)，在待接收站点组信息中，Start AID1表示第一个触发消息对应的第一待接收站点组中AID最小的待接收站点的AID(或STA待接收站点组中包含的AID最小的STA对应的TIM中“1”的序号，即TIM中第几个“1”)，Num1表示第一待接收站点组中包含的待接收站点的数量，对应TIM中从Start AID1对应的“1”开始的“1”的个数，多个触发消息时的信息如此类推。需要说明的是，Start AID1还可以表示第一个触发消息对应的第一待接收站点组中AID最大的 待接收站点(即末尾接收站点)的AID(或STA待接收站点组中包含的AID最大的STA对应的TIM中“1”的序号，即TIM中第几个“1”)。
402、接入点根据所述第一触发消息的发送时间信息发送第一触发消息；
可选的，所述第一触发消息可以包括：第二待接收站点组对应的触发消息的发送时间信息(可选的，触发消息中包括的发送时间信息的时间精度可以大于广播消息中包括的发送时间信息的时间精度)。
站点在收到所述广播消息之后，查看所述广播消息中的TIM，若TIM中与站点相对应的二进制为“0”，则站点无需进行处理；若TIM中与站点相对应的二进制为“1”，则所述站点为待接收站点。
进一步的，所述待接收站点根据所述广播消息中包括的相应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息的发送时间，准备进行待接收指示消息的发送。
第一待接收站点组的待接收站点在确定有下行的缓存数据需要传输之后，查看所述广播消息中的第一待接收站点组信息，通过所述第一待接收站点组信息确认自身站点属于第一待接收站点组，则对应的触发消息为第一触发消息，所述第一待接收站点组的待接收站点在所述第一触发消息的发送时间处于苏醒状态。
具体的，所述触发消息可以为trigger消息，也可以为其它格式的消息，具体此处不作限定。可选的，所述触发消息可以包括：触发消息的标识信息、对应触发消息的待接收站点组指示信息、下一个触发消息的发送时间信息、信道资源指示信息中的一个或多个信息；具体根据实际情况而定，此处不作限定。
在本发明实施例中，在接入点发送所述广播消息之前，可以根据实际需求，设定好每一条触发消息的发送时间信息；并且，若在实际应用过程中情况有变(如，发生了延时)，也可以动态的调整未发送的触发消息的发送时间信息。因此，在实际应用过程中，可以在广播消息中设定第一触发消息的发送时间信息，或每一待接收站点组对应的触发消息的发送时间信息。
示例性的，所述触发消息的消息结构可以参阅图6，在图6中，Trigger ID为触发消息的标识(如，第一触发消息，与第一待接收站点组的待接收站点相对应)；可选的，Group1为第一待接收站点组对应的待接收站点组指示信息， Start AID1表示第一个触发消息对应的第一待接收站点组中AID最小的待接收站点的AID(或STA待接收站点组中包含的AID最小的STA对应的TIM中“1”的序号，即TIM中第几个“1”)，Num1表示第一待接收站点组中包含的待接收站点的数量，对应TIM中从Start AID1对应的“1”开始的“1”的个数，多个触发消息时的信息如此类推。可选的，Next Trigger time指的是下一个触发消息的发送时间信息。可选的，PS-Poll resource为信道资源指示信息，所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。在实际应用中，待接收指示消息的信道资源可以由接入点和待接收站点事先约定，因此，触发消息中不一定包括PS-Poll resource。
403、接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
示例性的，第一待接收站点组的待接收站点可以根据第一触发消息中携带的待接收站点组指示信息确定用于发送待接收指示消息的信道资源。可选的，有以下两种方式：
一、若接入点和待接收站点事先约定了待接收指示消息的信道资源(整个频谱资源的频带，以及该整个频谱资源的划分方式)，则第一待接收站点组的待接收站点根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中；
二、若接入点和待接收站点没有约定待接收指示消息的信道资源，则第一待接收站点组的待接收站点通过第一触发消息中的信道资源指示信息获知待接收指示消息的信道资源，然后根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中。
404、接入点向第一待接收站点组中的待接收站点发送资源分配信息。
接入点向第一待接收站点组中的待接收站点发送资源分配信息，所述分配消息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
在站点侧，设待接收站点组中的至少两个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息为至少两个待接收站点组对应的触发消息的发送时间信息，请参阅图7，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
701、待接收站点接收接入点发送的广播消息；
待接收站点接收接入点发送的广播消息，所述广播消息包括：传输指示位图，至少两个待接收站点组对应的待接收站点组信息，至少两个待接收站点组对应的触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
示例性的，所述广播消息的消息结构可以参阅图5。
示例性的，站点在收到所述广播消息之后，查看所述广播消息中的TIM，若TIM中与站点相对应的二进制为“0”，则站点无需进行处理；若TIM中与站点相对应的二进制为“1”，则确认所述站点为待接收站点，执行步骤702。
702、待接收站点根据所述TIM以及各个待接收站点组信息确认自身站点所属的待接收站点组及对应的触发消息；
若所述待接收站点所在的待接收站点组为第一待接收站点组，则根据所述第一待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息的发送时间。
若所述待接收站点所在的待接收站点组为非第一待接收站点组，且所述广播消息还包括：除所述第一待接收站点组之外的各个待接收站点组对应的待接收站点组信息，则根据各个待接收站点组对应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息。
703、待接收站点根据在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
若所述待接收站点对应第一触发消息，则所述待接收站点在所述第一触发消息的发送时间处于苏醒状态，并接收所述接入点发送的第一触发消息；
若所述待接收站点对应第N触发消息，则所述待接收站点在所述第N触发消息的发送时间处于苏醒状态，并接收所述接入点发送的第N触发消息，所述N不为一的正整数。
具体的，所述触发消息可以为trigger消息，也可以为其它格式的消息，具体此处不作限定。可选的，所述触发消息可以包括：触发消息的标识信息、对应触发消息的待接收站点组指示信息、下一个触发消息的发送时间信息、信道资源指示信息中的一个或多个信息；具体根据实际情况而定，此处不作限定。示例性的，所述触发消息的消息结构可以参阅图6。
可选的，所述触发消息还可以包括：信道资源指示信息；所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。可以理解的是，在实际应用中，若接入点与待接收站点事先约定了信道资源，则触发消息中可以不包括信道资源指示信息。
704、待接收站点根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
示例性的，第一待接收站点组的待接收站点可以根据第一触发消息中携带的待接收站点组指示信息确定用于发送待接收指示消息的信道资源。可选的，有以下两种方式：
一、若接入点和待接收站点事先约定了待接收指示消息的信道资源(整个频谱资源的频带，以及该整个频谱资源的划分方式)，则第一待接收站点组的待接收站点根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相 应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中；
二、若接入点和待接收站点没有约定待接收指示消息的信道资源，则第一待接收站点组的待接收站点通过第一触发消息中的信道资源指示信息获知待接收指示消息的信道资源，然后根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中。
705、待接收站点接收接入点发送的资源分配信息。
待接收站点接收接入点发送的资源分配信息，并在所述分配消息指示的信道资源中下载所述缓存数据。
在接入点侧，设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅为第一触发消息的发送时间信息，请参阅图8，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
801、接入点发送广播消息；
当接入点中缓存了多个待接收站点的数据时，接入点发送广播消息，所述广播消息包括：传输指示位图，各个待接收站点组对应的待接收站点组信息，第一触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
示例性的，所述广播消息的消息结构可以参阅图5(在本发明实施例中，Trigger IE中没有Trigger time2)。
802、接入点根据所述第一触发消息的发送时间信息发送第一触发消息；
具体的，所述第一触发消息可以包括：第二待接收站点组对应的触发消息的发送时间信息。
站点在收到所述广播消息之后，查看所述广播消息中的TIM，若TIM中与站点相对应的二进制为“0”，则站点无需进行处理；若TIM中与站点相对应 的二进制为“1”，则所述站点为待接收站点。
进一步的，所述待接收站点根据所述广播消息中包括的相应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息，准备进行待接收指示消息的发送。
第一待接收站点组的待接收站点在确定有下行的缓存数据需要传输之后，查看所述广播消息中的第一待接收站点组信息，通过所述第一待接收站点组信息确认自身站点属于第一待接收站点组，则对应的触发消息为第一触发消息，所述第一待接收站点组的待接收站点在所述第一触发消息的发送时间处于苏醒状态。
示例性的，所述触发消息的消息结构可以参阅图6。
803、接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
示例性的，第一待接收站点组的待接收站点可以根据第一触发消息中携带的待接收站点组指示信息确定用于发送待接收指示消息的信道资源。可选的，有以下两种方式：
一、若接入点和待接收站点事先约定了待接收指示消息的信道资源(整个频谱资源的频带，以及该整个频谱资源的划分方式)，则第一待接收站点组的待接收站点根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中；
二、若接入点和待接收站点没有约定待接收指示消息的信道资源，则第一待接收站点组的待接收站点通过第一触发消息中的信道资源指示信息获知待接收指示消息的信道资源，然后根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中。
804、接入点向第一待接收站点组中的待接收站点发送资源分配信息；
接入点向第一待接收站点组中的待接收站点发送资源分配信息，所述分配消息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
805、接入点发送第二触发消息；
可以理解的是，步骤805发生在步骤802之后，但与步骤803和804没有严格的时序关系。
具体的，所述第二触发消息可以包括：待接收站点组指示信息，以及第二待接收站点组对应的触发消息的发送时间信息。
示例性的，在待接收站点接收到所述触发消息之后：
1)所述待接收站点判断当前接收的触发消息是否为所述待接收站点对应的触发消息，若是，则停止接收触发消息的流程；若否，则执行步骤2)；
2)所述待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息并执行步骤1)。
806、接入点接收所述第二待接收站点组中至少一个待接收站点根据所述第二触发消息，并使用多用户传输机制发送的待接收指示消息；
可选的，如果有多个待接收站点组，接入点则可以根据上述方法，继续发送触发消息并接收待接收指示消息。
807、接入点向第二待接收站点组中的待接收站点发送资源分配信息。
接入点向第二待接收站点组中的待接收站点发送资源分配信息，所述分配消息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
在站点侧，设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅为第一触发消息的发送时间信息，请参阅图9，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
901、待接收站点接收接入点发送的广播消息；
待接收站点接收接入点发送的广播消息，所述广播消息包括：传输指示位 图，各个待接收站点组对应的待接收站点组信息，第一触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
示例性的，所述广播消息的消息结构可以参阅图5(在本发明实施例中，Trigger IE中没有Trigger time2)。
示例性的，站点在收到所述广播消息之后，查看所述广播消息中的TIM，若TIM中与站点相对应的二进制为“0”，则站点无需进行处理；若TIM中与站点相对应的二进制为“1”，则确认所述站点为待接收站点，执行步骤902。
902、待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
具体的，所述第一触发消息包括：第二待接收站点组对应的触发消息的发送时间信息。
具体的，在站点接收到所述广播消息之后，若通过所述TIM发现自身站点有下行缓存数据需要传输，且通过所述第一待接收站点组信息获知自身站点属于第一站点组，则在所述第一触发消息的发送时间处于苏醒状态，以便于接收所述第一触发消息。可选的，若站点通过所述TIM发现自身站点没有下行缓存数据需要传输，则可以不进行处理。
若站点通过所述TIM确认自身为待接收站点，且通过所述第一待接收站点组信息获知自身站点属于非第一站点组，由于所述广播消息中并没有包括与自身站点对应的待接收站点组信息，因此，该待接收站点则需要根据所述第一触发消息中包括的第二触发消息的发送时间信息，在第二触发消息的发送时苏醒，并接收所述第二触发消息。
可选的，所述触发消息还可以包括：信道资源指示信息；所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。可以理解的是，在实际应用中，若接入点与待接收站点事先约定了信道资源，则触发消息中可以不包括信道资源指示信息。
903、待接收站点判断当前接收的触发消息是否为所述待接收站点对应的触发消息；
待接收站点判断当前接收的触发消息是否为所述待接收站点对应的触发消息，若是，则停止接收触发消息的流程，并执行步骤905；若否，则执行步骤904。
在实际应用中，若广播消息中没有包括各个待接收站点组对应的触发消息的发送时间，则接入点发送的相应触发消息中会包括第二待接收站点组对应的触发消息的发送时间信息。
904、待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息；
待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息并执行步骤903。
905、待接收站点根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
示例性的，第一待接收站点组的待接收站点可以根据第一触发消息中携带的待接收站点组指示信息确定用于发送待接收指示消息的信道资源。可选的，有以下两种方式：
一、若接入点和待接收站点事先约定了待接收指示消息的信道资源(整个频谱资源的频带，以及该整个频谱资源的划分方式)，则第一待接收站点组的待接收站点根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中；
二、若接入点和待接收站点没有约定待接收指示消息的信道资源，则第一待接收站点组的待接收站点通过第一触发消息中的信道资源指示信息获知待接收指示消息的信道资源，然后根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示) 中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中。
906、待接收站点接收接入点发送的资源分配信息。
待接收站点接收接入点发送的资源分配信息，并在所述分配消息指示的信道资源中下载所述缓存数据。
在接入点侧，设待接收站点组中的各个待接收站点不全都支持多用户传输机制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，请参阅图10，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
1001、接入点发送广播消息；
当接入点中缓存了多个待接收站点的数据时，接入点发送广播消息，所述广播消息包括：传输指示位图，待接收站点第一待接收站点组信息，第一触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。
示例性的，所述广播消息的消息结构可以参阅图5(在本发明实施例中，没有第二组Trigger IE)。
在本发明实施例中，Group1中包含有多个待接收站点，其中，部分待接收站点支持多用户传输机制，部分待接收站点不支持多用户传输机制。
1002、接入点根据所述第一触发消息的发送时间信息发送第一触发消息；
具体的，所述第一触发消息包括：第二待接收站点组对应的触发消息的发送时间信息。
站点在收到所述广播消息之后，查看所述广播消息中的TIM，若TIM中与站点相对应的二进制为“0”，则站点无需进行处理；若TIM中与站点相对应的二进制为“1”，则所述站点为待接收站点。
支持多用户传输机制的待接收站点接收到接入点发送的广播消息之后，待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒。
不支持多用户传输机制的待接收站点接收到接入点发送的广播消息之后， 该待接收站点只能识别到所述广播消息中TIM的信息，因此，该待接收站点会以现有技术中自由竞争信道的方式向接入点发送待接收指示消息，其中，信道自由竞争机制的大致流程为：待接收站点先侦听信道是否空闲，如果信道空闲时间超过一定时间(如AIFS，arbitration interframe space，仲裁帧间隔)，待接收站点则启动一个退避机制，即在设定的最小退避时间与最大退避时间之间随机选择一个退避时间值(以Time slot为单位)，同时启动一个倒计时定时时钟(以Time slot为单位)，当信道空闲时间累计达到待接收站点选择的退避时间值时，则倒计时定时时钟减为0，触发待接收站点向接入点发送待接收指示消息。
1003、接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
示例性的，接收到所述第一触发消息之后，根据所述第一触发消息确定发送待接收指示消息的时间。可选的，在实际应用中，待接收站点之间可以设定一个约定时长，在接收到第一触发消息之后，再经过所述约定时长之后，各个待接收站点同时发送接收指示消息。可选的，所述第一触发消息也可以包括一个待接收指示消息的发送指示信息，各个待接收站点根据所述待接收指示消息的发送指示信息的指示，确定统一发送接收指示消息的时间。
首先，在发送待接收指示消息之前，待接收站点先确定待接收指示消息的信道资源(整个频谱资源的频带，以及该整个频谱资源的划分方式)，具体的可以有两种方式：1、接入点和待接收站点事先约定；2、待接收站点通过第一触发消息中的信道资源指示信息获知待接收指示消息的信道资源。
其次，待接收站点根据待接收指示消息的信道资源，以及触发消息中包括的待接收站点第一待接收站点组信息确定自身站点发送所述待接收指示消息的信道资源。具体的，若是同时具有支持多用户传输机制的站点和不支持多用户传输机制的站点的场景，则触发消息中包括的待接收站点组指示信息为待接收站点类型指示标识，所述待接收站点类型指示标识具体为二进制位表，如图12中的STA type Bit-MAP。示例性的，待接收站点根据STA type Bit-MAP获 知自身站点为待接收站点组中第X个支持多用户传输机制的待接收站点，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中。
1004、接入点向第一待接收站点组中的待接收站点发送资源分配信息；
接入点向第一待接收站点组中的待接收站点发送资源分配信息，所述分配消息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
1005、接入点发送第二触发消息；
可以理解的是，步骤1005发生在步骤1002之后，但与步骤1003和1004没有严格的时序关系。
具体的，所述第二触发消息可以包括：待接收站点组指示信息，以及第二待接收站点组对应的触发消息的发送时间信息。
示例性的，在待接收站点接收到所述触发消息之后：
1)所述待接收站点判断当前接收的触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则执行步骤2)；若是，则执行步骤3)；
2)所述待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息，并执行步骤1)；
3)所述待接收站点确定当前接收的触发消息为所述待接收站点对应的触发消息。
1006、接入点接收所述第二待接收站点组中至少一个待接收站点根据所述第二触发消息，并使用多用户传输机制发送的待接收指示消息；
可选的，如果有多个待接收站点组，接入点则可以根据上述方法，继续发送触发消息并接收待接收指示消息。
1007、接入点向第二待接收站点组中的待接收站点发送资源分配信息。
接入点向第二待接收站点组中的待接收站点发送资源分配信息，所述分配消息用于向待接收站点指示下载缓存数据的信道资源，使得待接收站点在所述分配消息指示的信道资源中下载所述缓存数据。
在站点侧，设待接收站点组中的各个待接收站点不全都支持多用户传输机 制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，请参阅图11，本发明实施例中待接收指示消息传输方法的另一个实施例包括：
1101、待接收站点接收接入点发送的广播消息；
待接收站点接收接入点发送的广播消息，所述广播消息包括：传输指示位图，第一待接收站点组信息，第一触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
示例性的，站点在收到所述广播消息之后，查看所述广播消息中的TIM，若TIM中与站点相对应的二进制为“0”，则站点无需进行处理；若TIM中与站点相对应的二进制为“1”，则确认所述站点为待接收站点；进一步的，若待接收站点能识别广播消息中的Trigger IE信息，则执行步骤1102；若待接收站点不能识别广播消息中的Trigger IE信息，则确认该待接收站点为不支持多用户传输机制的待接收站点，该待接收站点只能识别到所述广播消息中TIM的信息，因此，该待接收站点会以现有技术中自由竞争信道的方式向接入点发送待接收指示消息，其中，信道自由竞争机制的大致流程为：待接收站点先侦听信道是否空闲，如果信道空闲时间超过一定时间(如AIFS，arbitration interframe space，仲裁帧间隔)，待接收站点则启动一个退避机制，即在设定的最小退避时间与最大退避时间之间随机选择一个退避时间值(以Time slot为单位)，同时启动一个倒计时定时时钟(以Time slot为单位)，当信道空闲时间累计达到待接收站点选择的退避时间值时，则倒计时定时时钟减为0，触发待接收站点向接入点发送待接收指示消息。
1102、待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
具体的，所述触发消息包括：第二待接收站点组对应的触发消息的发送时间信息。
1103、待接收站点判断当前接收的触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息；
待接收站点判断当前接收的触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则执行步骤1104)；若是，则待接收站点确定当前接收的触发消息为所述待接收站点对应的触发消息，执行步骤1105)。
具体的，所述触发消息包括：第二待接收站点组对应的触发消息的发送时间信息，以及待接收站点组指示信息；
在本发明实施例中，触发消息中包括的待接收站点组指示信息可以为站点类型指示位表，所述站点类型指示位表中的每一位对应所述触发消息对应的待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示相应的待接收站点能否发送所述待接收指示消息。
示例性的，所述触发消息的消息结构可以参阅图12，在图12中，Trigger ID为触发消息的标识(如，第一触发消息，与第一待接收站点组的待接收站点相对应)；可选的，STA type Bit-MAP为待接收站点类型指示标识，当STA type Bit-MAP一位二进制数设置为“1”时，表示相应的待接收站点支持多用户传输机制；当其中一位二进制数设置为“0”时，表示相应的待接收站点不支持多用户传输机制。可选的，Next Trigger time指的是下一个触发消息的发送时间信息。可选的，PS-Poll resource为信道资源指示信息，所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。在实际应用中，待接收指示消息的信道资源可以由接入点和待接收站点事先约定，因此，触发消息中不一定包括PS-Poll resource。
1104、待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息；
待接收站点根据当前接收的触发消息中包括的第二待接收站点组对应的触发消息的发送时间信息，接收第二待接收站点组对应的触发消息，并执行步骤1103。
1105、待接收站点根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示消息；
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
具体的，第一待接收站点组支持多用户传输机制的待接收站点可以根据第一触发消息中携带的待接收站点组指示信息确定用于发送待接收指示消息的信道资源。可选的，有以下两种方式：
一、若接入点和待接收站点事先约定了待接收指示消息的信道资源(整个频谱资源的频带，以及该整个频谱资源的划分方式)，则第一待接收站点组支持多用户传输机制的待接收站点根据STA type Bit-MAP获知自身站点为第一待接收站点组中第X个支持多用户传输机制的待接收站点，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中；
二、若接入点和待接收站点没有约定待接收指示消息的信道资源，则第一待接收站点组的待接收站点通过第一触发消息中的信道资源指示信息获知待接收指示消息的信道资源，然后第一待接收站点组支持多用户传输机制的待接收站点根据STA type Bit-MAP获知自身站点为第一待接收站点组中第X个支持多用户传输机制的待接收站点，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中。
1106、待接收站点接收接入点发送的资源分配信息。
待接收站点接收接入点发送的资源分配信息，并在所述分配消息指示的信道资源中下载所述缓存数据。
在本发明实施例中，当待接收站点组中的各个待接收站点不全都支持多用户传输机制时，还有“广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息为各个待接收站点组对应的触发消息的发送时间信息”的场景，可以参考图4和图5实施例的内容(其中，如何确定各个待接收站点的信道资源请参考图10和图11)，以及“广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息为第一触发消息的发送时间信息”的场景，可以参考图8和图9实施例的内容(其中，如何确定各个待接收站点的信道资源请参考图10和图11)，此处不再赘述。
下面对实现上述待接收指示消息传输方法的接入点进行描述，请参阅图 13，本发明实施例中接入点的另一个实施例包括：
发送单元1301，用于发送广播消息，所述广播消息包括：待传输指示位图(TIM)信息，第一待接收站点组信息，第一触发消息的发送时间信息；所述触发消息用于指示同一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述发送单元1301还用于根据所述第一触发消息的发送时间信息发送所述第一触发消息；
接收单元1302，用于接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息。
可选的，所述广播消息还包括：
除所述第一待接收站点组之外的至少一个其它待接收站点组对应的待接收站点组信息。
可选的，所述广播消息还包括：
除所述第一待接收站点组之外的至少一个其它待接收站点组对应的触发消息的发送时间信息。
可选的，所述待接收站点组信息包括：
所述待接收站点组的起始待接收站点的标识信息，或所述待接收站点组的末尾待接收站点的标识信息。
可选的，所述广播消息还包括：
待接收站点组包含的待接收站点数量信息。
可选的，所述触发消息包括：
第二待接收站点组对应的触发消息的发送时间信息。
可选的，所述触发消息包括：待接收站点组指示信息；
所述待接收站点组指示信息包括：起始关联标识或待接收站点组标识信息，所述起始关联标识为所述触发消息对应的待接收站点中关联标识最小的一个待接收站点的关联标识；
和/或，
所述待接收站点组指示信息包括：站点类型指示位表，所述站点类型指示 位表中的每一位对应所述触发消息对应的待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示相应的待接收站点能否发送所述待接收指示消息。
可选的，所述待接收站点组指示信息用于指示一待接收站点组对应的待接收指示消息的信道资源的分配信息。
可选的，所述触发消息包括：
信道资源指示信息，所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。
设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息为各个待接收站点组对应的触发消息的发送时间信息，相应的，本发明实施例中的各个单元的作用过程为：
当接入点中缓存了多个待接收站点的数据时，发送单元1301发送广播消息，所述广播消息包括：传输指示位图，各个待接收站点组对应的待接收站点组信息，各个待接收站点组对应的触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
示例性的，所述广播消息的消息结构可以参阅图5，在图5中，TIM为多位的二进制序列，所述二进制序列中的每一位分别对应每个待接收站点的AID，当其中一位二进制数设置为“1”时，表示相应的待接收站点有数据缓存在接入点；当其中一位二进制数设置为“0”时，表示相应的待接收站点没有数据缓存在接入点。Trigger IE(Information elements)为触发消息的信息元素，Trigger IE中包括有待接收站点组信息(如图中的Group1、Group2等)以及相应待接收站点组的触发消息的发送时间信息(如图中的Trigger time1、Trigger time2等)，在待接收站点组信息中，Start AID1表示第一个触发消息对应的第一待接收站点组中AID最小的待接收站点的AID(或STA待接收站点组中 包含的AID最小的STA对应的TIM中“1”的序号，即TIM中第几个“1”)，Num1表示第一待接收站点组中包含的待接收站点的数量，对应TIM中从Start AID1对应的“1”开始的“1”的个数，多个触发消息时的信息如此类推。需要说明的是，Start AID1还可以表示第一个触发消息对应的第一待接收站点组中AID最大的待接收站点(即末尾接收站点)的AID(或STA待接收站点组中包含的AID最大的STA对应的TIM中“1”的序号，即TIM中第几个“1”)。
发送单元1301接入点根据所述第一触发消息的发送时间信息发送第一触发消息；
接收单元1302接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息。
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
示例性的，第一待接收站点组的待接收站点可以根据第一触发消息中携带的待接收站点组指示信息确定用于发送待接收指示消息的信道资源。可选的，有以下两种方式：
一、若接入点和待接收站点事先约定了待接收指示消息的信道资源(整个频谱资源的频带，以及该整个频谱资源的划分方式)，则第一待接收站点组的待接收站点根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中；
二、若接入点和待接收站点没有约定待接收指示消息的信道资源，则第一待接收站点组的待接收站点通过第一触发消息中的信道资源指示信息获知待接收指示消息的信道资源，然后根据Start AID1以及TIM中自身站点的相应标识位，确定自身站点属于一个待接收站点组所有待接收站点(由Num1指示)中的第X个，相应的，自身站点对应的信道资源就在所述整个频谱资源中的第X个频段中。
设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，请参阅图2实施 例，此处不再赘述。
设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅为第一触发消息的发送时间信息，请参阅图8实施例，此处不再赘述。
设待接收站点组中的各个待接收站点不全都支持多用户传输机制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，请参阅图10实施例，此处不再赘述。
下面对实现上述待接收指示消息传输方法的站点进行描述，请参阅图14，本发明实施例中站点的一个实施例包括：
消息接收单元1401，用于接收接入点发送的广播消息，所述广播消息包括：待传输指示位图信息第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述消息接收单元1401还用于根据所述第一触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
消息发送单元1402，用于根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
可选的，所述站点还包括：
第一确定单元1403，用于根据所述TIM和所述第一待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息。
可选的，所述广播消息还包括：除所述第一待接收站点组之外的至少两个待接收站点组对应的待接收站点组信息；
所述站点还包括：
第二确定单元1404，用于根据所述TIM和至少两个待接收站点组对应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息。
可选的，所述站点还包括：第一判断单元1405；
所述第一触发消息包括：第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
所述第一判断单元用于在所述消息接收单元根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒并接收所述第一触发消息之后，判断所述第一触发消息是否为所述待接收站点对应的触发消息；
所述消息发送单元具体用于当所述第一触发消息是为所述待接收站点对应的触发消息时，根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息；
所述消息接收单元还用于当所述第一触发消息不是为所述待接收站点对应的触发消息时，根据所述第一触发消息中第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
可选的，所述站点还包括：第二判断单元1406；
所述触发消息包括：待接收站点组指示信息和第二待接收站点组对应的触发消息的发送时间信息；
所述第一触发消息包括：第一待接收站点组指示信息和第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
所述第二判断单元用于在所述消息接收单元根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒并接收所述第一触发消息之后，判断所述第一触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则触发所述消息接收单元根据所述第一触发消息中第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息；若是，则执行所述消息发送单元。所述消息发送单元具体用于当所述第一触发消息中包括有所述待接收站点对应的待接收站点组指示信息时，根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息；
所述消息接收单元还用于当所述第一触发消息中没有有包括所述待接收 站点对应的待接收站点组指示信息时，根据所述第一触发消息中第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
可选的，所述站点还包括：第一信道确定单元1407；
所述触发消息包括：待接收站点组指示信息，所述待接收站点组指示信息用于指示一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述第一信道确定单元1407用于根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，
所述消息发送单元1402具体用于使用第一信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
可选的，所述站点还包括：第二信道确定单元1408；
所述触发消息包括：信道资源指示信息，待接收站点组指示信息；
所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元；
所述待接收站点组指示信息用于指示一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述第二信道确定单元1408根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述消息发送单元1402具体用于使用所述第二信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，相应的，本发明实施例中的各个单元的作用过程为：
消息接收单元1401接收接入点发送的广播消息，所述广播消息包括：传输指示位图，第一待接收站点组信息，第一触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行数据的站点。
在接收到广播消息后，消息接收单元1401根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
具体的，所述第一触发消息包括：下一待接收站点组对应的触发消息的发送时间信息。
具体的，在站点接收到所述广播消息之后，若通过所述TIM发现自身站点有下行缓存数据需要传输，且通过所述第一待接收站点组信息获知自身站点属于第一站点组，则在所述第一触发消息的发送时间处于苏醒状态，以便于接收所述第一触发消息。可选的，若站点通过所述TIM发现自身站点没有下行缓存数据需要传输，则可以不进行处理。
若站点通过所述TIM确认自身为待接收站点，且通过所述第一待接收站点组信息获知自身站点属于非第一站点组，由于所述广播消息中并没有包括与自身站点对应的待接收站点组信息，因此，该待接收站点则需要根据所述第一触发消息中包括的第二触发消息的发送时间信息，在第二触发消息的发送时苏醒，并接收所述第二触发消息。
具体的，所述触发消息可以为trigger消息，也可以为其它格式的消息，具体此处不作限定。可选的，所述触发消息可以包括：触发消息的标识信息、对应触发消息的待接收站点组指示信息、下一个触发消息的发送时间信息、信道资源指示信息中的一个或多个信息；具体根据实际情况而定，此处不作限定。
可选的，所述触发消息还可以包括：信道资源指示信息；所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。可以理解的是，在实际应用中，若接入点与待接收站点事先约定了信道资源，则触发消息中可以不包括信道资源指示信息。
第一判断单元1405判断当前接收的触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则消息接收单元1401根据当前接收的触发消息中包括的下一待接收站点组对应的触发消息的发送时间信息，接收下一待接收站点组对应的触发消息；若是，则消息发送单元1402根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示 消息。
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
具体的，若接入点与待接收站点约定了信道资源，则第一信道确定单元1407根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，再使用所述信道资源向所述接入点发送待接收指示消息。
可选的，若接入点与待接收站点没有约定信道资源，则触发消息中就会包括有信道资源指示信息；第二信道确定单元1408根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，再使用所述信道资源向所述接入点发送待接收指示消息。
设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅为第一触发消息的发送时间信息，请参阅图9实施例，此处不再赘述。
设待接收站点组中的各个待接收站点不全都支持多用户传输机制，且广播消息中包括的待接收站点组信息仅有第一待接收站点组信息，广播消息中包括的触发消息的发送时间信息仅有第一触发消息的发送时间信息，请参阅图11实施例，此处不再赘述。
下面对实现上述待接收指示消息传输方法的站点进行描述，同请参阅图14，本发明实施例中站点的另一个实施例包括：
消息接收单元1401，用于接收接入点发送的广播消息，所述广播消息包括：待传输指示位图(TIM)信息，至少两个待接收站点组信息，至少两个待接收站点组对应的触发消息的发送时间信息；所述触发消息用于指示同一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
所述消息接收单元1401还用于根据所述至少两个待接收站点组对应的触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
消息发送单元1402，用于根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
可选的，所述站点还包括：第一信道确定单元1407；
所述触发消息包括：待接收站点组指示信息，所述待接收站点组指示信息用于指示一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述第一信道确定单元用于根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，
所述消息发送单元具体用于：使用第一信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
可选的，所述站点还包括：第二信道确定单元1408；
所述触发消息包括：信道资源指示信息，待接收站点组指示信息；
所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元；
所述待接收站点组指示信息用于指示一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述第二信道确定单元根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源
所述消息发送单元具体用于：使用所述第二信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
设待接收站点组中的各个待接收站点都支持多用户传输机制，且广播消息中包括的待接收站点组信息为各个待接收站点组对应的待接收站点组信息，广播消息中包括的触发消息的发送时间信息为各个待接收站点组对应的触发消息的发送时间信息，相应的，本发明实施例中的各个单元的作用过程为：
消息接收单元1401接收接入点发送的广播消息，所述广播消息包括：传输指示位图，各个待接收站点组对应的待接收站点组信息，各个待接收站点组对应的触发消息的发送时间信息，所述触发消息用于指示同一待接收站点组的待接收站点同时向所述接入点发送待接收指示消息，所述第一触发消息为第一待接收站点组对应的触发消息。所述待接收站点为在所述TIM中指示有下行 数据的站点。
示例性的，所述广播消息的消息结构可以参阅图5。
在接收到广播消息之后，消息接收单元1401根据所述TIM以及各个待接收站点组信息确认自身站点所属的待接收站点组及对应的触发消息；
若所述待接收站点对应第一触发消息，则在所述第一触发消息的发送时间处于苏醒状态，并接收所述接入点发送的第一触发消息；
若所述待接收站点对应第N触发消息，则在所述第N触发消息的发送时间处于苏醒状态，并接收所述接入点发送的第N触发消息，所述N不为一的正整数。
消息发送单元1402根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示消息。
在实际应用中，一个待接收站点组内的待接收站点在接收到触发消息后，会根据触发消息确定各自用于发送待接收指示消息的信道资源。
具体的，若接入点与待接收站点约定了信道资源，则第一信道确定单元1407根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，再使用所述信道资源向所述接入点发送待接收指示消息。
可选的，若接入点与待接收站点没有约定信道资源，则触发消息中就会包括有信道资源指示信息；第二信道确定单元1408根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，再使用所述信道资源向所述接入点发送待接收指示消息。
图15是本发明实施例接入点或站点的结构示意图。接入点或站点可包括发射器1510、接收器1520、处理器1530、存储器1540、总线系统1550。
发射器1510和接收器1520用于建立通信信道，使接入点或站点通过所述通信信道以连接至远程服务器，并从所述远程服务器下载媒体数据，或向所述远程服务器上传媒体数据。所述发射器1510和接收器1520可以包括无线局域网(Wireless Local Area Network，wireless LAN)模块、蓝牙模块、基带(Base Band)模块等通信模块，以及所述通信模块对应的射频(Radio Frequency，RF)电路，用于进行无线局域网络通信、蓝牙 通信、红外线通信及/或蜂窝式通信系统通信，例如宽带码分多重接入(Wideband Code Division Multiple Access，W-CDMA)及/或高速下行封包存取(High Speed Downlink Packet Access，HSDPA)。所述通信模块用于控制接入点中的各组件的通信，并且可以支持直接内存存取(Direct Memory Access)。
在本发明的不同实施方式中，所述发射器1510和接收器1520中的各种通信模块一般以集成电路芯片(Integrated Circuit Chip)的形式出现，并可进行选择性组合，而不必包括所有通信模块及对应的天线组。例如，所述发射器1510和接收器1520可以仅包括基带芯片、射频芯片以及相应的天线以在一个蜂窝通信系统中提供通信功能。经由所述收发器1560建立的无线通信连接，例如无线局域网接入或WCDMA接入，所述接入点或站点可以连接至蜂窝网(Cellular Network)或因特网(Internet)。在本发明的一些可选实施方式中，所述发射器1510和接收器1520中的通信模块，例如基带模块可以集成到处理器1530中。
存储器1540可以包括只读存储器和随机存取存储器，并向处理器1530提供指令和数据。存储器1540的一部分还可以包括非易失性随机存取存储器(NVRAM)。
存储器1540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。
处理器1530控制接入点或站点的操作，处理器1530还可以称为CPU(Central Processing Unit，中央处理单元)。存储器1540可以包括只读存储器和随机存取存储器，并向处理器1530提供指令和数据。存储器1540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，接入点或站点的各个组件通过总线系统1550耦合在一起，其中总线系统1550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1550。
上述本发明实施例揭示的方法可以应用于处理器1530中，或者由处理器1530实现。处理器1530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1530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1530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。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1540，处理器1530读取存储器1540中的信息，结合其硬件完成上述方法的步骤。
在接入点的实施例中，处理器1530通过调用存储器1540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：
所述处理器1530用于通过所述发射器1510发送广播消息，所述广播消息包括：待传输指示位图信息，第一待接收站点组信息，第一触发消息的发送时间信息第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据所述第一触发消息的发送时间信息发送所述第一触发消息；
所述处理器1530还用于通过所述接收器1520接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息。
可选的，所述广播消息还包括：
除所述第一待接收站点组之外的至少一个其它待接收站点组对应的待接收站点组信息。
可选的，所述广播消息还包括：
除所述第一待接收站点组之外的至少一个其它待接收站点组对应的触发 消息的发送时间信息。
可选的，所述待接收站点组信息包括：
所述待接收站点组的起始待接收站点的标识信息，或所述待接收站点组的末尾待接收站点的标识信息。
可选的，所述广播消息还包括：
待接收站点组包含的待接收站点数量信息。
可选的，所述触发消息包括：
下一待接收站点组对应的触发消息的发送时间信息。
可选的，所述触发消息包括：待接收站点组指示信息；
所述待接收站点组指示信息包括：起始关联标识或待接收站点组标识信息，所述起始关联标识为所述触发消息对应的待接收站点中关联标识最小的一个待接收站点的关联标识；
和/或，
所述待接收站点组指示信息包括：站点类型指示位表，所述站点类型指示位表中的每一位对应所述触发消息对应的待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示相应的待接收站点能否发送所述待接收指示消息。
可选的，所述待接收站点组指示信息用于指示一待接收站点组对应的待接收指示消息的信道资源的分配信息。
可选的，所述触发消息包括：
信道资源指示信息，所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元。
上述接入点中各个模块的操作流程请参阅上述方法实施例，此处不再赘述。
在站点的一个实施例中，处理器1530通过调用存储器1540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：
所述处理器1530用于通过所述接收器1520接收接入点发送的广播消息， 所述广播消息包括：待传输指示位图(TIM)信息，第一待接收站点组信息，第一触发消息的发送时间信息第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据所述第一触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
所述处理器1530用于通过所述发射器1510根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
可选的，所述处理器1530还用于根据所述TIM和所述第一待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息。
可选的，所述广播消息还包括：除所述第一待接收站点组之外的各个待接收站点组对应的待接收站点组信息；
所述站点还包括：
所述处理器1530还用于根据所述TIM和各个待接收站点组对应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息。
可选的，所述触发消息包括：下一待接收站点组对应的触发消息的发送时间信息；
1)所述接收器1520根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
2)所述处理器1530判断当前接收的触发消息是否为所述待接收站点对应的触发消息，若是，则停止接收触发消息的流程；若否，则执行步骤3)；
3)所述接收器1520根据当前接收的触发消息中包括的下一待接收站点组对应的触发消息的发送时间信息，接收下一待接收站点组对应的触发消息并执行步骤2)。
可选的，所述触发消息包括：待接收站点组指示信息和下一待接收站点组对应的触发消息的发送时间信息；
1)所述接收器1520根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
2)所述处理器1530判断当前接收的触发消息中是否包括有所述待接收站 点对应的待接收站点组指示信息，若否，则执行步骤3)；若是，则执行步骤4)；
3)所述接收器1520根据当前接收的触发消息中包括的下一待接收站点组对应的触发消息的发送时间信息，接收下一待接收站点组对应的触发消息，并执行步骤2)；
4)所述接收器1520确定当前接收的触发消息为所述待接收站点对应的触发消息，停止接收触发消息的流程。
可选的，所述触发消息包括：待接收站点组指示信息，所述待接收站点组指示信息用于指示一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述所述处理器1530还用于根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，
所述发射器1510具体用于使用第一信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
可选的，所述触发消息包括：信道资源指示信息，待接收站点组指示信息；
所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元；
所述待接收站点组指示信息用于指示一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述所述处理器1530还根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述发射器1510具体用于使用所述第二信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
上述站点中各个模块的操作流程请参阅上述方法实施例，此处不再赘述。
在站点的另一个实施例中，处理器1530通过调用存储器1540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：
所述处理器1530用于通过所述接收器1520接收接入点发送的广播消息，所述广播消息包括：待传输指示位图(TIM)信息，至少两个待接收站点组信 息，至少两个待接收站点组对应的触发消息的发送时间信息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据所述至少两个待接收站点组对应的触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
所述处理器1530用于通过所述发射器1510根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
可选的，所述触发消息包括：待接收站点组指示信息，所述待接收站点组指示信息用于指示一待接收站点组对应的待接收指示消息的信道资源的分配信息；
所述所述处理器1530还用于根据预设的信道资源和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，
所述发射器1510具体用于使用第一信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
可选的，所述触发消息包括：信道资源指示信息，待接收站点组指示信息；
所述信道资源指示信息为与所述触发消息对应的一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括至少一个用于所述待接收站点发送待接收指示消息的信道资源单元；
所述待接收站点组指示信息用于指示一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
所述所述处理器1530还根据所述信道资源指示信息和所述待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
所述发射器1510具体用于使用所述第二信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
上述站点中各个模块的操作流程请参阅上述方法实施例，此处不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可 以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。

Claims (35)

  1. 一种待接收指示消息传输方法，其特征在于，包括：
    接入点发送广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
    所述接入点根据所述第一触发消息的发送时间信息发送所述第一触发消息；
    所述接入点接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息并使用多用户传输机制发送的待接收指示消息。
  2. 根据权利要求1所述的方法，其特征在于，所述待接收站点组信息包括：
    所述待接收站点组的起始待接收站点的标识信息，或所述待接收站点组的末尾待接收站点的标识信息。
  3. 根据权利要求1所述的方法，其特征在于，所述广播消息还包括：
    待接收站点组包含的待接收站点数量信息。
  4. 根据权利要求1所述的方法，其特征在于，所述第一触发消息包括：
    第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息。
  5. 根据权利要求1所述的方法，其特征在于，
    所述第一触发消息包括：第一待接收站点组指示信息；
    所述第一待接收站点组指示信息包括：第一起始关联标识或第一待接收站点组标识信息，所述第一起始关联标识为所述第一待接收站点组内关联标识最小的一个待接收站点的关联标识；
    和/或，
    所述第一待接收站点组指示信息包括站点类型指示位表，所述站点类型指示位表中的每一位对应所述第一待接收站点组中的一个待接收站点，所述站点 类型指示位表中的每一位用于指示对应的待接收站点能否发送所述待接收指示消息。
  6. 根据权利要求5所述的方法，其特征在于，所述第一待接收站点组指示信息包括：指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息。
  7. 根据权利要求1～6所述的方法，其特征在于，所述第一触发消息包括：
    第一信道资源指示信息，所述第一信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元。
  8. 一种待接收指示消息传输方法，其特征在于，包括：
    待接收站点接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
    所述待接收站点根据所述第一触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
    所述待接收站点根据所述待接收站点对应的触发消息并使用多用户传输机制向所述接入点发送待接收指示消息。
  9. 根据权利要求8所述的方法，其特征在于，所述接收所述待接收站点对应的触发消息之前，包括：
    所述待接收站点根据所述TIM和所述第一待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息；
    所述待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
    所述待接收站点确定所述第一触发消息为所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
  10. 根据权利要求8所述的方法，其特征在于，
    所述广播消息还包括：除所述第一待接收站点组之外的各个待接收站点组对应的待接收站点组信息；
    所述接收所述待接收站点对应的触发消息之前，包括：
    所述待接收站点根据所述TIM和各个待接收站点组对应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息；
    所述第一触发消息包括：第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
    所述待接收站点根据所述第一触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息，包括：
    所述待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
    所述待接收站点判断第一触发消息是否为所述待接收站点对应的触发消息，若是，则使用多用户传输机制向所述接入点发送待接收指示消息；若否，则所述待接收站点根据所述第一触发消息中包括的第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
  11. 根据权利要求8所述的方法，其特征在于，
    所述第一触发消息包括：第一待接收站点组指示信息和第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
    所述待接收站点根据所述第一触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息，包括：
    所述待接收站点根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒，并接收所述第一触发消息；
    所述待接收站点判断所述第一触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息，若否，则所述待接收站点根据所述第一触发消息中包括的第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息；若是，则使用多用户传输机制向所述接入点发送待接收指示消息。
  12. 根据权利要求8所述的方法，其特征在于，
    所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息；
    所述待接收站点根据所述待接收站点对应的触发消息，使用多用户传输机制向所述接入点发送待接收指示消息，包括：
    所述待接收站点根据所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
    所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
  13. 根据权利要求8所述的方法，其特征在于，
    所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
    所述信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
    所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
    所述待接收站点根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息，包括：
    所述待接收站点根据所述第一信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
    所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
  14. 一种待接收指示消息传输方法，其特征在于，包括：
    待接收站点接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、至少两个待接收站点组信息和至少两个待接收站点组对应的触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
    所述待接收站点根据所述至少两个待接收站点组对应的触发消息的发送 时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
    所述待接收站点根据所述待接收站点对应的触发消息并使用多用户传输机制向所述接入点发送待接收指示消息。
  15. 根据权利要求14所述的方法，其特征在于，
    所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息；
    所述待接收站点根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息，包括：
    所述待接收站点根据所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
    所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
  16. 根据权利要求14所述的方法，其特征在于，
    所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
    所述信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
    所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
    所述待接收站点根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息，包括：
    所述待接收站点根据所述信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
    所述待接收站点使用所述信道资源向所述接入点发送待接收指示消息。
  17. 一种接入点，其特征在于，包括：
    发送单元，用于发送广播消息，所述广播消息包括：待传输指示位图TIM信息，第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待 接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
    所述发送单元还用于根据所述第一触发消息的发送时间信息发送所述第一触发消息；
    接收单元，用于接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息。
  18. 根据权利要求17所述的接入点，其特征在于，所述待接收站点组信息包括：
    所述待接收站点组的起始待接收站点的标识信息，或所述待接收站点组的末尾待接收站点的标识信息。
  19. 根据权利要求17所述的接入点，其特征在于，所述广播消息还包括：
    待接收站点组包含的待接收站点数量信息。
  20. 根据权利要求17所述的接入点，其特征在于，所述第一触发消息包括：
    第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息。
  21. 根据权利要求17所述的接入点，其特征在于，
    所述第一触发消息包括：第一待接收站点组指示信息；
    所述第一待接收站点组指示信息包括：第一起始关联标识或第一待接收站点组标识信息，所述第一起始关联标识为所述第一待接收站点组内关联标识最小的一个待接收站点的关联标识；
    和/或，
    所述第一待接收站点组指示信息包括：站点类型指示位表，所述站点类型指示位表中的每一位对应所述第一待接收站点组中的一个待接收站点，所述站点类型指示位表中的每一位用于指示相应的待接收站点能否发送所述待接收指示消息。
  22. 根据权利要求21所述的接入点，其特征在于，所述第一待接收站点 组指示信息还包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息。
  23. 根据权利要求17～22所述的接入点，其特征在于，所述第一触发消息包括：
    第一信道资源指示信息，所述第一信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元。
  24. 一种站点，其特征在于，包括：
    消息接收单元，用于接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
    所述消息接收单元还用于根据所述第一触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
    消息发送单元，用于根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息。
  25. 根据权利要求24所述的站点，其特征在于，所述站点还包括：
    第一确定单元，用于根据所述TIM和所述第一待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息。
  26. 根据权利要求24所述的站点，其特征在于，
    所述广播消息还包括：除所述第一待接收站点组之外的至少两个待接收站点组对应的待接收站点组信息；
    所述站点还包括：
    第二确定单元，用于根据所述TIM和至少两个待接收站点组对应的待接收站点组信息确定所述待接收站点对应的待接收站点组及触发消息；
    所述站点还包括：第一判断单元；
    所述第一触发消息包括：第二触发消息的发送时间信息，所述第二触发消 息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
    所述第一判断单元用于在所述消息接收单元根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒并接收所述第一触发消息之后，判断所述第一触发消息是否为所述待接收站点对应的触发消息；
    所述消息发送单元具体用于当所述第一触发消息是为所述待接收站点对应的触发消息时，根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息；
    所述消息接收单元还用于当所述第一触发消息不是为所述待接收站点对应的触发消息时，根据所述第一触发消息中第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
  27. 根据权利要求24所述的站点，其特征在于，
    所述站点还包括：第二判断单元；
    所述第一触发消息包括：第一待接收站点组指示信息和第二触发消息的发送时间信息，所述第二触发消息用于指示第二待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；
    所述第二判断单元用于在所述消息接收单元根据所述第一触发消息的发送时间信息，在第一触发消息发送时苏醒并接收所述第一触发消息之后，判断所述第一触发消息中是否包括有所述待接收站点对应的待接收站点组指示信息所述消息发送单元具体用于当所述第一触发消息中包括有所述待接收站点对应的待接收站点组指示信息时，根据所述待接收站点对应的触发消息使用多用户传输机制向所述接入点发送待接收指示消息；
    所述消息接收单元还用于当所述第一触发消息中没有有包括所述待接收站点对应的待接收站点组指示信息时，根据所述第一触发消息中第二触发消息的发送时间信息，接收第二待接收站点组对应的触发消息。
  28. 根据权利要求24所述的站点，其特征在于，
    所述站点还包括：第一信道确定单元；
    所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源 的分配信息；
    所述第一信道确定单元用于所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源，
    所述消息发送单元具体用于：使用第一信道确定单元确定的所述信道资源向所述接入点发送待接收指示消息。
  29. 根据权利要求24所述的站点，其特征在于，
    所述站点还包括：第二信道确定单元；
    所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
    所述第一信道资源指示信息为第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
    所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
    所述第二信道确定单元根据所述第一信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
    所述消息发送单元具体用于：使用所述第二信道确定单元确定的所述信道资源，并使用多用户传输机制向所述接入点发送待接收指示消息。
  30. 一种站点，其特征在于，包括：
    消息接收单元，用于接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息至少两个待接收站点组信息，至少两个待接收站点组对应的触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；
    所述消息接收单元还用于根据所述至少两个待接收站点组对应的触发消息的发送时间信息，在所述待接收站点对应的触发消息发送时苏醒，并接收所述待接收站点对应的触发消息；
    消息发送单元，用于根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
  31. 根据权利要求30所述的站点，其特征在于，
    所述站点还包括：第一信道确定单元；
    所述第一触发消息包括：第一待接收站点组指示信息，所述第一待接收站点组指示信息包括指示第一待接收站点组对应的待接收指示消息的信道资源的分配信息；
    所述第一信道确定单元用于根据所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
    所述消息发送单元具体用于：使用第一信道确定单元确定的所述信道资源，并使用多用户传输机制向所述接入点发送待接收指示消息。
  32. 根据权利要求30所述的站点，其特征在于，
    所述站点还包括：第二信道确定单元；
    所述第一触发消息包括：第一信道资源指示信息，第一待接收站点组指示信息；
    所述第一信道资源指示信息第一待接收站点组发送待接收指示消息的信道资源的指示信息，所述发送待接收指示消息的信道资源包括用于所述第一待接收站点组的待接收站点发送待接收指示消息的信道资源单元；
    所述第一待接收站点组指示信息包括指示第一待接收站点组对应的用于发送待接收指示消息的信道资源的分配信息；
    所述第二信道确定单元根据所述信道资源指示信息和所述第一待接收站点组指示信息确定所述待接收站点发送所述待接收指示消息对应的信道资源；
    所述消息发送单元具体用于：使用所述第二信道确定单元确定的所述信道资源，使用多用户传输机制向所述接入点发送待接收指示消息。
  33. 一种接入点，其特征在于，包括：
    发射器，接收器和处理器；
    所述处理器用于通过所述发射器发送广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于 指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据所述第一触发消息的发送时间信息发送所述第一触发消息；
    所述处理器还用于通过所述接收器接收所述第一待接收站点组中至少一个待接收站点根据所述第一触发消息，并使用多用户传输机制发送的待接收指示消息。
  34. 一种站点，其特征在于，包括：发射器，接收器和处理器；
    所述处理器用于通过所述接收器接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、第一待接收站点组信息和第一触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据所述第一触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
    所述处理器用于通过所述发射器根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
  35. 一种站点，其特征在于，包括：发射器，接收器和处理器；
    所述处理器用于通过所述接收器接收接入点发送的广播消息，所述广播消息包括：待传输指示位图TIM信息、至少两个待接收站点组信息和至少两个待接收站点组对应的触发消息的发送时间信息，其中，第一待接收站点组对应所述第一触发消息；所述第一触发消息用于指示所述第一待接收站点组中支持多用户传输机制的待接收站点同时向所述接入点发送待接收指示消息；所述待接收站点为在所述TIM中指示有下行数据的站点；并根据自己对应的触发消息的发送时间信息，在自己对应的触发消息发送时苏醒，并接收自己对应的触发消息；
    所述处理器用于通过所述发射器根据所述待接收站点对应的触发消息，并使用多用户传输机制向所述接入点发送待接收指示消息。
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Publication number Priority date Publication date Assignee Title
KR20220107083A (ko) 2016-05-11 2022-08-01 주식회사 윌러스표준기술연구소 랜덤 액세스 기반의 상향 다중 사용자 전송을 위한 무선 통신 단말 및 무선 통신 방법
KR102390645B1 (ko) * 2016-12-27 2022-04-28 주식회사 윌러스표준기술연구소 Ofdma 랜덤 액세스를 사용하는 무선 통신 방법 및 이를 사용하는 무선 통신 단말
CN113748634B (zh) * 2020-03-31 2023-10-03 北京小米移动软件有限公司 数据传输方法及装置、通信设备及存储介质
CN113132367B (zh) * 2021-04-09 2024-02-23 国网电力科学研究院有限公司 面向工程监测物联网采集终端数据传输自适应方法和装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110235621A1 (en) * 2010-03-24 2011-09-29 Mediatek Inc. Synchronized activity bitmap generation method for co-located coexistence (clc) devices
US8619732B2 (en) * 2008-02-28 2013-12-31 Broadcom Corporation Method and apparatus for enabling coexistence of plurality of communication technologies on communication device
US20140086131A1 (en) * 2011-05-31 2014-03-27 Lg Electronics Inc. Method for transmitting and receiving physical layer convergence procedure protocol data unit in wireless local area network system supporting power save mode operation and apparatus for the same
CN104206001A (zh) * 2012-04-20 2014-12-10 华为技术有限公司 用于无线网络中数据传输的方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104081875B (zh) * 2011-11-09 2019-04-16 新加坡科技研究局 寻址无线通信网络中的多个通信终端
US9019986B2 (en) * 2011-11-18 2015-04-28 Futurewei Technologies, Inc. System and method for communications link control
US8995406B2 (en) * 2012-02-06 2015-03-31 Qualcomm Incorporated Systems and methods for reducing collisions after traffic indication map paging
US10205573B2 (en) * 2013-09-13 2019-02-12 Futurewei Technologies, Inc. System and method for OFDMA PS-poll transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8619732B2 (en) * 2008-02-28 2013-12-31 Broadcom Corporation Method and apparatus for enabling coexistence of plurality of communication technologies on communication device
US20110235621A1 (en) * 2010-03-24 2011-09-29 Mediatek Inc. Synchronized activity bitmap generation method for co-located coexistence (clc) devices
US20140086131A1 (en) * 2011-05-31 2014-03-27 Lg Electronics Inc. Method for transmitting and receiving physical layer convergence procedure protocol data unit in wireless local area network system supporting power save mode operation and apparatus for the same
CN104206001A (zh) * 2012-04-20 2014-12-10 华为技术有限公司 用于无线网络中数据传输的方法和装置

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