CN103906178A - Relay node selection method and apparatus - Google Patents

Relay node selection method and apparatus Download PDF

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Publication number
CN103906178A
CN103906178A CN201210580338.XA CN201210580338A CN103906178A CN 103906178 A CN103906178 A CN 103906178A CN 201210580338 A CN201210580338 A CN 201210580338A CN 103906178 A CN103906178 A CN 103906178A
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China
Prior art keywords
via node
sta
object via
channel measurement
mark
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CN201210580338.XA
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Chinese (zh)
Inventor
伍天宇
李云波
杨讯
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210580338.XA priority Critical patent/CN103906178A/en
Priority to PCT/CN2013/083901 priority patent/WO2014101490A1/en
Publication of CN103906178A publication Critical patent/CN103906178A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/047Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiments of the invention provide a relay node selection method and apparatus. The method comprises: an AP receiving relay indication information sent by a relay node, and according to the relay indication information, establishing an association with the relay node; the AP receiving an association request message send by an STA, and according to the association request message, establishing an association with the STA; and the AP determining a destination relay node corresponding to the STA in the relay node which the AP establishes the association with so as to communicate with the STA through the destination relay node. According to the embodiments of the invention, a relay mechanism is added between the AP and the STA, and the AP establishes the associations with the relay node and the STA, obtains the destination relay node which is selected by the STA or the AP and is corresponding to the STA, and communicates with the STA through the destination relay node, so that the system throughput can be improved, and the problems of substantially decreased throughput and low communication reliability in case of large WLAN coverage scope are solved.

Description

A kind of relay node selecting method and device
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to a kind of relay node selecting method and device.
Background technology
Along with the development of the communication technology, WLAN (Wireless Local Area Networks, be called for short WLAN) more and more used, in prior art, in wlan system, access point (Access Point is called for short AP) and website (Station is called for short STA) adopt the method for direct communication.
For example, but in the prior art, in the time that the coverage of AP is larger, AP coverage arrives 1 kilometer, AP and STA direct communication meeting cause throughput to decline to a great extent, and communication reliability is low.
Summary of the invention
The embodiment of the present invention provides a kind of relay node selecting method and device, and for solving WLAN coverage when larger, throughput declines and the low problem of communication reliability.
The first aspect of the embodiment of the present invention is to provide a kind of relay node selecting method, comprising:
Access point AP receives the relaying indication information that via node sends, and sets up associated according to described relaying indication information with described via node;
The association request message that described AP receiving station STA sends, and set up associated according to described association request message with described STA;
Described AP, setting up definite object via node corresponding with described STA in associated described via node, with by described object via node, communicates by letter with described STA.
In conjunction with first aspect, in the first execution mode of first aspect, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
Described AP inquiry STA and the mapping relations of setting up associated described via node, determine the to be selected via node corresponding with described STA, and to described via node transmitting channel measurement request frame to be selected, measure frame for described via node broadcast channel to be selected, so that described STA is according to the described channel measurement frame receiving, from described via node to be selected, select a via node, as object via node;
Described AP receives the first notification message of the mark that carries described object via node of described STA transmission, and according to the mark of described object via node, determines the object via node corresponding with described STA.
In conjunction with first aspect, in the second execution mode of first aspect, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
Described AP broadcast channel measurement request frame, for setting up associated via node according to the described channel measurement request frame receiving with described AP in the whole network, broadcast channel is measured frame, so that described STA is according to the described channel measurement frame receiving, from described the whole network, set up in associated via node and select a via node with described AP, as object via node;
Described AP receives the first notification message of the mark that carries described object via node of described STA transmission, and according to the mark of described object via node, determines the object via node corresponding with described STA.
In conjunction with first aspect, in the third execution mode of first aspect, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
In the BSS of described AP under described AP, set up associated each via node as via node to be selected with described AP, and the mark of described via node to be selected is sent to described STA, for described STA according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected, and according to the channel measurement frame receiving, from described via node to be selected, select a via node, as object via node; Described channel measurement frame is the channel measurement frame of described via node broadcast to be selected;
Described AP receives the first notification message of the mark that carries described object via node of described STA transmission, and according to the mark of described object via node, determines the object via node corresponding with described STA.
In conjunction with first aspect, in the 4th kind of execution mode of first aspect, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
Described AP measures the positional information of described STA;
Described AP, according to described positional information, determines the object via node corresponding with described STA in the described via node of setting up association, and the object via node that described STA is corresponding and the distance of described STA are less than the distance of other via node and described STA;
Described method also comprises:
Described AP is carried at the mark of described object via node in the second notification message, to send to described STA and described object via node.
Embodiment of the present invention second aspect provides a kind of relay node selecting method, comprising:
Site STA sends association request message to access point AP, according to described association request message, sets up associated with described STA for described AP;
Described STA determines the object via node corresponding with described STA, and communicates by letter with described AP according to described object via node, and wherein said object via node is associated with described AP.
In conjunction with second aspect, in the first execution mode of second aspect, described STA determines the object via node corresponding with described STA, comprising:
Described STA receives the channel measurement frame of via node broadcast to be selected, and according to described channel measurement frame, selects a via node, as object via node from via node to be selected;
Described method also comprises:
Described STA is carried at the mark of described object via node in the first notification message, to send to described AP and described object via node.
In conjunction with second aspect, in the second execution mode of second aspect, described STA determines the object via node corresponding with described STA, comprising:
Described STA receives the mark of the via node to be selected of AP transmission; And according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected;
Described STA receives the channel measurement frame that described via node to be selected sends according to described channel measurement request frame, and according to described channel measurement frame, selects a via node, as object via node from described via node to be selected;
Described method also comprises:
Described STA is carried at the mark of described object via node in the first notification message, to send to described AP and described object via node.
In conjunction with second aspect, in the third execution mode of second aspect, described STA determines the object via node corresponding with described STA, comprising:
Described STA receives the second notification message of the mark that carries object via node of described AP transmission.
The embodiment of the present invention third aspect provides a kind of relay node selecting method, comprising:
Via node sends relaying indication information to AP, according to described relaying indication information, sets up associated with described via node for described AP;
Described via node receive channel measurement request frame, and according to channel measurement request frame, broadcast channel is measured frame, for listening to the STA that sends described channel measurement frame, according to described channel measurement frame, from broadcast described channel measurement frame and set up associated via node and select a via node with described AP, as the object via node corresponding with described STA.
In conjunction with the third aspect, in the first execution mode of the third aspect, described via node receive channel measurement request frame, comprising:
Described via node receives the channel measurement request frame of AP or STA transmission.
In conjunction with the third aspect, in the second execution mode of the third aspect, described method also comprises:
If described via node is used as described object via node, receive the first notification message of the mark that carries described object via node of STA transmission, or, the second notification message of the mark that carries described object via node that reception AP sends.
Embodiment of the present invention fourth aspect provides a kind of access point, comprising:
Receiver module, the relaying indication information sending for receiving via node, and set up associated according to described relaying indication information with described via node;
Described receiver module, the association request message also sending for receiving station STA, and set up associated according to described association request message with described STA;
Determination module, for setting up the definite object via node corresponding with described STA of associated described via node, with by described object via node, communicates by letter with described STA.
In conjunction with fourth aspect, in the first execution mode of fourth aspect, described determination module comprises:
Determining unit, for AP inquiry STA and the mapping relations of setting up associated described via node, determines the to be selected via node corresponding with described STA;
Transmitting element, for to described via node transmitting channel measurement request frame to be selected, measure frame for described via node broadcast channel to be selected, so that described STA is according to the described channel measurement frame receiving, from described via node to be selected, select a via node, as object via node;
Described determining unit, also when receive the first notification message that receives the mark that carries described object via node that described STA sends at described receiver module, according to the mark of described object via node, determine the object via node corresponding with described STA.
In conjunction with fourth aspect, in the second execution mode of fourth aspect, also comprise:
Broadcast module, for broadcast channel measurement request frame, for setting up associated via node according to the described channel measurement request frame receiving with described AP in the whole network, broadcast channel is measured frame, so that described STA is according to the described channel measurement frame receiving, from described the whole network, set up in associated via node and select a via node with described AP, as object via node;
When described determination module is specifically for the first notification message of the mark that carries described object via node that receives described STA at described receiver module and send, according to the mark of described object via node, determine the object via node corresponding with described STA.
In conjunction with fourth aspect, in the third execution mode of fourth aspect, described determination module comprises:
Determining unit, sets up associated via node as via node to be selected for the BSS under described AP with described AP;
Transmitting element, for the mark of described via node to be selected is sent to described STA, for described STA according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected, and according to the channel measurement frame receiving, from described via node to be selected, select a via node, as object via node; Described channel measurement frame is the channel measurement frame of described via node broadcast to be selected;
Described determining unit also when receiving the first notification message of the mark that carries described object via node that described STA sends, according to the mark of described object via node, is determined the object via node corresponding with described STA.
In conjunction with fourth aspect, in the 4th kind of execution mode of fourth aspect, described acquisition module comprises:
Measuring unit, for measuring the positional information of described STA;
Determining unit, be used for according to described positional information, in the described via node of setting up association, determine the object via node corresponding with described STA, the object via node that described STA is corresponding and the distance of described STA are less than the distance of other via node and described STA;
Described access point also comprises:
Sending module, sends to described STA and described object via node for the mark of described object via node being carried to the second notification message.
The embodiment of the present invention the 5th aspect provides a kind of website, comprising:
Sending module, for sending association request message to access point AP, according to described association request message, sets up associated with described STA for described AP;
Determination module, for determining the object via node corresponding with described STA, and communicates by letter with described AP according to described object via node, and wherein said object via node is associated with described AP.
In conjunction with the 5th aspect, in the first execution mode aspect the 5th, described website also comprises:
Receiver module, for receiving the channel measurement frame of via node broadcast to be selected;
Described determination module, specifically for according to described channel measurement frame, is selected a via node, as object via node from described via node to be selected;
Described sending module also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
In conjunction with the 5th aspect, in the second execution mode aspect the 5th, described receiver module, the mark of via node to be selected also sending for receiving AP;
Described determination module is specifically for according to the mark of described via node to be selected, by described sending module to described via node transmitting channel measurement request frame to be selected; And in the time that described receiver module receives the channel measurement frame that described via node to be selected sends according to described channel measurement request frame, according to described channel measurement frame, from described via node to be selected, select a via node, as object via node;
Described sending module also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
In conjunction with the 5th aspect, in the third execution mode aspect the 5th, described receiver module, also for receiving the second notification message of the mark that carries object via node that described AP sends;
Described acquisition module is specifically for according to described the second notification message, using the via node of the mark correspondence of described object via node as object via node.
The embodiment of the present invention the 6th aspect provides a kind of via node, comprising:
Sending module, for sending relaying indication information to AP, according to described relaying indication information, sets up associated with described via node for described AP;
Receiver module, for receive channel measurement request frame;
Described sending module is also for according to channel measurement request frame, broadcast channel is measured frame, for listening to the STA that sends described channel measurement frame, according to described channel measurement frame, from broadcast described channel measurement frame and set up associated via node and select a via node with described AP, as the object via node corresponding with described STA.
In conjunction with the 6th aspect, in the first execution mode aspect the 6th, described receiver module, the channel measurement request frame sending specifically for receiving AP or STA.
In conjunction with the 6th aspect, in the second execution mode aspect the 6th, described receiver module, the first notification message of the mark that carries described object via node also sending for receiving STA, or, the second notification message of the mark that carries described object via node that reception AP sends.
In the embodiment of the present invention, by increased trunking mechanism between AP and STA, AP carries out associated with via node and STA, and obtain the object via node corresponding with this STA of being selected by STA or AP, communicate by this object via node and above-mentioned STA, can improve the throughput of system, solve in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet of relay node selecting method one embodiment provided by the invention;
Fig. 2 is the schematic flow sheet of the another embodiment of relay node selecting method provided by the invention;
Fig. 3 is the relay node selecting method provided by the invention schematic flow sheet of an embodiment again;
Fig. 4 is the also signaling process schematic diagram of an embodiment of relay node selecting method provided by the invention;
Fig. 5 is the relay node selecting method provided by the invention signaling process schematic diagram of an embodiment again;
Fig. 6 is the signaling process schematic diagram of another embodiment of relay node selecting method provided by the invention;
Fig. 7 is the signaling process schematic diagram of another embodiment of relay node selecting method provided by the invention;
Fig. 8 is the structural representation of access point one embodiment provided by the invention;
Fig. 9 is the structural representation of the another embodiment of access point provided by the invention;
Figure 10 is the access point provided by the invention structural representation of an embodiment again;
Figure 11 is the structural representation of another embodiment of access point provided by the invention;
Figure 12 is the structural representation of website one embodiment provided by the invention;
Figure 13 is the structural representation of another embodiment of website provided by the invention;
Figure 14 is the structural representation of via node one embodiment provided by the invention;
Figure 15 is the structural representation of another access point provided by the invention one embodiment;
Figure 16 is the structural representation of another website provided by the invention one embodiment;
Figure 17 is the structural representation of another via node provided by the invention one embodiment.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the schematic flow sheet of relay node selecting method one embodiment provided by the invention, and as shown in Figure 1, the executive agent of the present embodiment is AP, and the method comprises:
S101, AP receive the relaying indication information that via node sends, and set up associated according to this relaying indication information with above-mentioned via node.
In the present embodiment, this relaying indication information can be used as an independently frame transmission, also can be carried at via node in the association request frame of AP transmission, in this relaying indication information, comprise relay capabilities indication, being used to indicate above-mentioned AP can use this node as via node, in addition, in this relaying indication information, can also comprise positional information, the capabilities message etc. of via node, for example, processing speed, or the maximum nodes of supporting etc., it should be noted that, AP is associated multiple via nodes simultaneously.
S102, above-mentioned AP receive the association request message that STA sends, and set up associated according to described association request message with above-mentioned STA.
Concrete, can be that AP receives the association request message that STA sends, then reply associated request response to STA, association is successfully established.
S103, above-mentioned AP, setting up definite object via node corresponding with above-mentioned STA in associated described AP node, with by this object via node, communicate by letter with above-mentioned STA.
In the present embodiment, can there be multiple via nodes for it provides relay services for same STA.Preferably, STA can set up associated via node and select a via node as object via node with AP from multiple, namely finally for communicating by letter with STA, above-mentioned AP provides the via node of relay services, after selection completes, need to notify its selection result of above-mentioned AP, AP just knows by which via node and this STA and communicates; Or, also can choose suitable via node as object via node by AP, distribute to this STA.
In the present embodiment, carry out associated with via node and STA respectively by AP, and setting up in associated via node and to determine the object via node corresponding with this STA with this AP, to communicate by this object via node and this STA, owing to having increased trunking mechanism between AP and STA, thereby solved in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability, and then effectively improve the throughput of system.
Further, in another embodiment, in S103, AP determines the object via node corresponding with this STA in the described via node of setting up association, can have following 4 kinds of implementations:
1) in first kind of way, above-mentioned AP inquiry STA and the mapping relations of setting up associated above-mentioned via node, determine the to be selected via node corresponding with this STA, and to this via node transmitting channel measurement request frame to be selected, measure frame for above-mentioned via node broadcast channel to be selected, so that this STA selects a via node according to the above-mentioned channel measurement frame receiving from via node to be selected, as object via node.This AP receives the first notification message of the mark that carries above-mentioned purpose via node of above-mentioned STA transmission, and according to the mark of above-mentioned purpose via node, determines the object via node corresponding with above-mentioned STA.
Concrete, AP inquiry STA and above-mentioned and this AP set up the mapping relations of associated via node, determine which via node can provide relay services for this STA, using these via nodes as via node to be selected, then AP adopts the mode of poll successively to these via node transmitting channel measurement request frame to be selected, namely in the mode of clean culture successively to each via node transmitting channel measurement request frame to be selected; These via nodes to be selected are according to channel measurement request frame, form transmitting channel with broadcast is measured frame, STA is by listening these channel measurement frames to select, wherein, these channel measurement frames can be the empty Frames that is specifically designed to channel measurement, STA can obtain the channel situation of via node to STA by this frame, and STA can select via node that signal is the strongest as object via node according to the signal strength signal intensity of channel measurement frame in the time selecting, but not as limit.In addition, STA also can select not use via node, for example, STA detects that according to channel measurement frame all available via node signal strength signal intensities are all very weak, or, when AP is enough strong to the signal strength signal intensity of STA, STA just can select not use via node, and adopts the direct and AP of prior art to communicate.
When STA chooses after via node according to channel measurement frame, selection result need to be informed to the object via node that the AP associated with it and it are chosen, so, can, by the mark of object via node is carried on a notification message, send to above-mentioned AP and object via node.
2) in the second way, AP broadcast channel measurement request frame, for setting up associated via node according to this channel measurement request frame receiving with above-mentioned AP in the whole network, broadcast channel is measured frame, the above-mentioned channel measurement frame receiving for above-mentioned STA basis, setting up in associated via node and selecting a via node with above-mentioned AP from above-mentioned the whole network, as object via node.AP receives the first notification message of the mark that carries above-mentioned purpose via node of above-mentioned STA transmission, and according to the mark of above-mentioned purpose via node, determines the object via node corresponding with above-mentioned STA.
It should be noted that, above-mentioned via node is that the mode of competing is measured frame to STA transmitting channel, wherein, the mode of competition, specifically can refer to carrier sense multichannel access/collision detection (CSMA/CA) the channel access mode in WLAN, all websites that need to access channel are detecting after channel idle, carry out initiating channel access after random back.
3) in the third mode, in the BSS of AP under this AP, set up associated via node as via node to be selected with described AP, and the mark of this via node to be selected is sent to above-mentioned STA, send to above-mentioned STA for above-mentioned STA according to the mark of above-mentioned via node to be selected, for above-mentioned STA according to the mark of above-mentioned via node to be selected, to this via node transmitting channel measurement request frame to be selected, and according to the channel measurement frame receiving, from above-mentioned via node to be selected, select a via node, as object via node, wherein, this channel measurement frame is the channel measurement frame of above-mentioned via node broadcast to be selected.AP receives the first notification message of the mark that carries above-mentioned purpose via node of above-mentioned STA transmission, and according to the mark of above-mentioned purpose via node, determines the object via node corresponding with above-mentioned STA.
In specific implementation process, AP will notify this Basic Service Set of STA (Basic Service Set, be called for short BSS) in set up associated via node with described AP, can be that the mark of these via nodes to be selected is sent to STA, for example, so that the mark of these via nodes is carried in a notification message and sends to STA etc. with tabular form.
4) in the 4th kind of mode, AP first measures the positional information of above-mentioned STA; Then AP, according to this positional information, determines the object via node corresponding with this STA in the described via node of setting up association, and the object via node that this STA is corresponding and the distance of this STA are less than the distance of other via node and this STA.
It should be noted that, AP measures the mode of the positional information of STA, can adopt in prior art any, for example, STA is obtained positional information and is offered AP by global positioning system (Global Positioning System is called for short GPS), or in above-mentioned BSS, measure in advance the channel situation of each position to AP, AP can obtain according to STA the positional information of above-mentioned STA to the channel of AP, and then, AP therefrom selects apart from the nearest via node of STA as object via node; In addition, when AP selects object via node, can from the via node of this AP association, select;
Further, in which, AP is carried at the mark of this object via node in the second notification message, to send to above-mentioned STA and object via node.
In specific implementation process, this second notification message can be included in a via node and distribute in frame.
Fig. 2 is the schematic flow sheet of the another embodiment of relay node selecting method provided by the invention, as shown in Figure 2, the STA of the executive agent of the present embodiment, the method comprises:
S201, STA send association request message to AP, according to this association request message, set up associated with this STA for this AP.
In the present embodiment, this AP can carry out the technical scheme of embodiment of the method shown in above-mentioned Fig. 1, realizes principle similar, repeats no more herein.
S202, above-mentioned STA determine the object via node corresponding with above-mentioned STA, and communicate by letter with this AP according to this object via node, and wherein this object via node is associated with above-mentioned AP.
In the present embodiment, can there be multiple via nodes for it provides relay services for same STA, therefore need STA therefrom to select one as object via node, namely finally for communicating by letter with STA, above-mentioned AP provides the via node of relay services, after selection completes, need to notify its selection result of above-mentioned AP, AP just knows by which via node and this STA and communicates; Certainly, also can choose suitable object via node by AP, distribute to STA, it should be noted that, these via nodes are to have set up associated via node with AP.
In the present embodiment, send association request message to AP by STA, for AP according to this association request message, set up associated with this STA, and determine the object via node corresponding with this STA, finally communicate by letter with this AP according to this object via node, thereby owing to having solved in the time that WLAN coverage is large having increased trunking mechanism between AP and STA, throughput declines to a great extent and the low problem of communication reliability, and then has effectively improved the throughput of system.
Further, go back in an embodiment in the present invention, corresponding to embodiment of the method shown in Fig. 2, in S201, above-mentioned STA determines the object via node corresponding with above-mentioned STA, can have 3 kinds of implementations, specific as follows:
1) in first kind of way, STA receives the channel measurement frame of via node broadcast to be selected, and according to above-mentioned channel measurement frame, from this via node to be selected, select a via node, as object via node, and then STA is carried at the mark of this object via node in the first notification message, to send to above-mentioned AP and above-mentioned purpose via node.
Wherein, before receiving the channel measurement frame of via node transmission to be selected, these via nodes can be to receive the channel measurement request frame that AP sends in the mode of poll, also can be to receive the channel measurement request frame of AP to the whole network broadcast, concrete, which can, with reference to the first kind of way in embodiment of the method shown in Fig. 1 or the second way, not repeat them here.
2), in the second way, STA receives the mark of the via node to be selected of AP transmission; And according to the mark of this via node to be selected, to this via node transmitting channel measurement request frame to be selected; Then, STA receives the channel measurement frame that this via node to be selected sends according to this channel measurement request frame, according to this channel measurement frame, selects a via node, as object via node from this via node to be selected;
And then in which, STA is carried at the mark of above-mentioned purpose via node to send to above-mentioned AP and object via node in the first notification message; Concrete, which can, with reference to the third mode in embodiment illustrated in fig. 1, not repeat them here.
3) in the third mode, STA receives the second notification message of the mark that carries object via node of above-mentioned AP transmission, be that the object via node that AP chooses oneself is notified to STA, which can, with reference to the 4th kind of mode in embodiment illustrated in fig. 1, not repeat them here.
Fig. 3 is the relay node selecting method provided by the invention schematic flow sheet of an embodiment again, as shown in Figure 3, the via node of the executive agent of the present embodiment, the method comprises:
S301, via node send relaying indication information to AP, according to this relaying indication information, set up associated with this via node for AP.
In the present embodiment, AP can carry out the technical scheme of embodiment of the method shown in above-mentioned Fig. 1, and it is similar that it realizes principle, repeats no more herein.
S302, above-mentioned via node receive channel measurement request frame, and according to channel measurement request frame, broadcast channel is measured frame, for listening to the STA that sends this channel measurement frame, according to this channel measurement frame, from broadcast this channel measurement frame and set up associated via node and select a via node with above-mentioned AP, as the object via node corresponding with this STA.
In the present embodiment, STA can carry out the technical scheme of embodiment of the method shown in above-mentioned Fig. 2, and it is similar that it realizes principle, do not repeat them here.
In the present embodiment, via node is by sending relaying indication information to AP, be connected with this relay point according to this relaying indication information for AP, and receive channel measurement request frame, and according to this channel measurement request frame, broadcast channel is measured frame, for listening to the STA that sends this channel measurement frame, according to this channel measurement frame, from the via node of broadcast channel measurement frame, select a via node, as the object via node corresponding with this STA, thereby AP is communicated by this object via node and above-mentioned STA, solve in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability, and then improve the throughput of system.
Further, in another embodiment, on above-mentioned basis embodiment illustrated in fig. 3, in S302, the specific implementation of above-mentioned via node receive channel measurement request frame can be:
Receive the channel measurement request frame that AP or STA send.
Further, in another embodiment of the present invention, on above-mentioned basis embodiment illustrated in fig. 3, if above-mentioned via node is used as above-mentioned purpose via node, the method also comprises:
Receive the first notification message of the mark that carries above-mentioned purpose via node of STA transmission, or, the second notification message of the mark that carries above-mentioned purpose via node that reception AP sends.
In the present embodiment, no matter be that AP or STA select object via node, all selection result to be notified to selected via node, further to communicate by letter.
In the present embodiment, by increased trunking mechanism between AP and STA, AP sets up associated with via node and STA, and obtain the object via node corresponding with this STA of being selected by STA or AP, communicate by this object via node and above-mentioned STA, can improve the throughput of system, solve in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability.
Fig. 4 is the also signaling process schematic diagram of an embodiment of relay node selecting method provided by the invention, and as shown in Figure 4, the method comprises:
S401, via node send relaying indication information to AP.
In the present embodiment, via node can provide self message by relaying indication information.
S402, AP, according to this relaying indication information, set up associated with this via node.
S403, STA send association request message to AP.
S404, AP, according to this association request message, set up associated with this STA.
S405, AP inquire about STA and the mapping relations of setting up associated via node, determine the to be selected via node corresponding with this STA.
S406, AP are successively to via node transmitting channel measurement request frame to be selected.
S407, via node broadcast channel to be selected are measured frame, monitor for STA.
In the present embodiment, the quantity of via node to be selected can be multiple, and each via node to be selected all can be measured frame by broadcast channel, monitors for STA.
It should be noted that, the via node shown in Fig. 4 is a via node to be selected.
S408, STA receive above-mentioned channel measurement frame, and according to above-mentioned channel measurement frame, select one as object via node from via node to be selected.
S409, STA are carried at the mark of object via node in the first notification message and send to AP.
S410, STA are carried at the mark of object via node in the first notification message, to send to object via node.
Wherein, S409 and S410 can carry out simultaneously.
Fig. 5 is the relay node selecting method provided by the invention schematic flow sheet of an embodiment again, and as shown in Figure 5, the method comprises:
S501, via node send relaying indication information to AP.
S502, AP, according to this relaying indication information, set up associated with this via node.
S503, STA send association request message to AP.
S504, AP, according to this relaying indication information, set up associated with this STA.
S505, AP broadcast channel measurement request frame, monitor for the via node of the whole network, and these via nodes are set up associated with above-mentioned AP.
It should be noted that, the via node shown in Fig. 5 is that the whole network is set up a via node in associated via node with above-mentioned AP.
S506, each via node are measured frame with the mode broadcast channel of competition, monitor for STA.
S507, STA receive above-mentioned channel measurement frame, and according to above-mentioned channel measurement frame from setting up associated via node and select one as object via node with above-mentioned AP.
S508, STA are carried at the mark of object via node in the first notification message and send to AP.。
S509, STA are carried at the mark of object via node in the first notification message, to send to object via node.
Wherein S508 and S509 can carry out simultaneously.
Fig. 6 is the signaling process schematic diagram of another embodiment of relay node selecting method provided by the invention, and as shown in Figure 6, the method comprises:
S601, via node send relaying indication information to AP.
S602, AP, according to this relaying indication information, set up associated with this via node.
S603, STA send association request message to AP.
S604, AP, according to this association request message, set up associated with this STA.
In S605, the AP BSS under AP, set up associated via node as via node to be selected with above-mentioned AP, and notice is to STA.
In the present embodiment, the quantity of via node to be selected can be multiple, and each via node to be selected all can be measured frame by broadcast channel, monitors for STA.
It should be noted that, the via node shown in Fig. 6 is a via node to be selected.
S606, STA broadcast channel measurement request frame, monitor for above-mentioned via node to be selected.
S607, above-mentioned via node to be selected are measured frame with the mode broadcast channel of competition, monitor for STA.
S608, STA receive above-mentioned channel measurement frame, and according to above-mentioned channel measurement frame, select one as object via node from via node to be selected.
S609, STA are carried at the mark of object via node in the first notification message and send to AP.
S610, STA are carried at the mark of object via node in the first notification message, to send to object via node.
Wherein, S609 and S610 can carry out simultaneously.
Fig. 7 is the signaling process schematic diagram of another embodiment of relay node selecting method provided by the invention, and as shown in Figure 7, the method comprises:
S701, via node send relaying indication information to AP.
S702, AP, according to this relaying indication information, set up associated with this via node.
S703, STA send association request message to AP.
S704, AP, according to this association request message, set up associated with this STA.
S705, AP measure the positional information of STA.
S706, AP be according to above-mentioned positional information, selects the nearest via node of above-mentioned STA of distance as object via node.
S707, AP are carried at the mark of object via node in the second notification message, to send to above-mentioned STA.
S708, AP are carried at the mark of object via node in the second notification message, to send to above-mentioned STA.
Wherein, S707 and S708 can carry out simultaneously.
In the present embodiment, carry out associated with via node and STA respectively by AP, and definite object via node corresponding with this STA of being selected by this STA or AP, communicate by this object via node and above-mentioned STA, owing to having increased trunking mechanism between AP and STA, thereby solved in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability, and then effectively improve the throughput of system.
Fig. 8 is the structural representation of access point one embodiment provided by the invention, and as shown in Figure 8, this access point 800 comprises: receiver module 801 and determination module 802, wherein:
Receiver module 801, the relaying indication information sending for receiving via node, and set up associated according to described relaying indication information with described via node;
Further, this receiver module 801, the association request message also sending for receiving STA, and set up associated according to described association request message with described STA;
Determination module 802, for setting up the definite object via node corresponding with described STA of associated described via node, with by described object via node, communicates by letter with described STA.
Above-mentioned each module specific works can, with reference to embodiment of the method shown in Fig. 1, not repeat them here.
In the present embodiment, carry out associated with via node and STA respectively by AP, and definite object via node corresponding with this STA of being selected by this STA or AP, communicate by this object via node and above-mentioned STA, owing to having increased trunking mechanism between AP and STA, thereby solved in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability, and then effectively improve the throughput of system.
Fig. 9 is the structural representation of the another embodiment of access point provided by the invention, and as shown in Figure 9, on the basis of Fig. 8, the determination module 802 in this access point 800 comprises: determining unit 901 and transmitting element 902, particularly,
Corresponding to the first kind of way in embodiment of the method shown in Fig. 1, acquiring unit 901, for AP inquiry STA and the mapping relations of setting up associated described via node, determines the to be selected via node corresponding with described STA;
Transmitting element 902, be used for to described via node transmitting channel measurement request frame to be selected, measure frame for described via node broadcast channel to be selected, so that described STA is according to the described channel measurement frame receiving, from described via node to be selected, select a via node, as object via node;
Further, described determining unit 901, also when receive the first notification message of the mark that carries described object via node that described STA sends at above-mentioned receiver module 801, according to the mark of described object via node, obtain the object via node corresponding with described STA.
In addition, corresponding to the third mode in embodiment of the method shown in Fig. 1, determining unit 901, sets up associated via node as via node to be selected for the BSS under described AP with described AP;
Transmitting element 902, for the mark of described via node to be selected is sent to described STA, for described STA according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected, and according to the channel measurement frame receiving, from described via node to be selected, select a via node, as object via node; Described channel measurement frame is the channel measurement frame of described via node broadcast to be selected;
Further, when the first notification message of the mark that carries described object via node that determining unit 901 also sends for the described STA receiving at described receiver module, according to the mark of described object via node, obtain the object via node corresponding with described STA.
Figure 10 is the access point provided by the invention structural representation of an embodiment again, and as shown in figure 10, on the basis of Fig. 8, this access point 800 also comprises: broadcast module 803, particularly,
Corresponding to the second way in embodiment of the method shown in Fig. 1, broadcast module 803, for broadcast channel measurement request frame, for setting up associated via node according to the described channel measurement request frame receiving with described AP in the whole network, broadcast channel is measured frame, so that described STA is according to the described channel measurement frame receiving, from described the whole network, sets up in associated via node and select a via node with described AP, as object via node;
Determination module 802, when receive the first notification message of the mark that carries described object via node that described STA sends at described receiver module, according to the mark of described object via node, obtain the object via node corresponding with described STA.
Figure 11 is the structural representation of another embodiment of access point provided by the invention, as shown in figure 11, and on the basis of Fig. 8, this access point also comprises: sending module 804, and in addition, the determination module 802 in this access point 800 comprises: measuring unit 111 and determining unit 112, particularly
Corresponding to the 4th kind of mode in embodiment of the method shown in Fig. 1, measuring unit 111, for measuring the positional information of described STA;
Determining unit 112, be used for according to described positional information, in the described via node of setting up association, determine the object via node corresponding with described STA, the object via node that described STA is corresponding and the distance of described STA are less than the distance of other via node and described STA;
Sending module 804, sends to described STA and described object via node for the mark of described object via node being carried to the second notification message.
Above-mentioned each module specific works can, with reference to embodiment of the method shown in Fig. 1, not repeat them here.
Figure 12 is the structural representation of website one embodiment provided by the invention, and as shown in figure 12, this website 120 comprises: sending module 121 and determination module 122, wherein:
Sending module 121, for sending association request message to AP, according to described association request message, sets up associated with described STA for described AP;
Determination module 122, for determining the object via node corresponding with described STA, and communicates by letter with described AP according to described object via node, and wherein said object via node is associated with described AP.
In the present embodiment, carry out associated with via node and STA respectively by AP, and obtain the object via node corresponding with this STA of being selected by this STA or AP, communicate by this object via node and above-mentioned STA, owing to having increased trunking mechanism between AP and STA, thereby solved in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability, and then effectively improve the throughput of system.
Figure 13 is the structural representation of another embodiment of website provided by the invention, and as shown in figure 13, on the basis of Figure 12, this website 120 also comprises: receiver module 123, particularly,
Corresponding to embodiment of the method shown in Fig. 2, above-mentioned determination module 122, for obtaining the object via node corresponding with STA, has three kinds of implementations:
1) first kind of way, receiver module 123, receives the channel measurement frame that via node to be selected is broadcasted;
Above-mentioned determination module 122, according to described channel measurement frame, is selected a via node, as object via node from described via node to be selected;
Sending module 121, also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
2) second way, receiver module 123, the mark of via node to be selected sending for receiving AP;
Above-mentioned determination module 122 is according to the mark of described via node to be selected, by sending module 121 to described via node transmitting channel measurement request frame to be selected; And in the time that receiver module 123 receives the channel measurement frame that described via node to be selected sends according to described channel measurement request frame, according to described channel measurement frame, from described via node to be selected, select a via node, as object via node;
Further, identical with first kind of way, sending module 121, also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
3) the third mode, receiver module 123, also for receiving the second notification message of the mark that carries object via node that described AP sends;
Determination module 122 is according to described the second notification message, using the via node of the mark correspondence of described object via node as object via node.
Above-mentioned each module specific works can, with reference to embodiment of the method shown in Fig. 2, not repeat them here.
Figure 14 is the structural representation of via node one embodiment provided by the invention, and as shown in figure 14, this via node comprises: sending module 141, and receiver module 142, wherein:
Sending module 141, for sending relaying indication information to AP, according to described relaying indication information, sets up associated with described via node for described AP;
Receiver module 142, for receive channel measurement request frame;
Further, sending module 141 is according to channel measurement request frame, broadcast channel is measured frame, for the STA that listens to described channel measurement frame, according to described channel measurement frame, from broadcast described channel measurement frame and set up associated via node and select a via node with described AP, as the object via node corresponding with described STA.
In the present embodiment, carry out associated with via node and STA respectively by AP, and obtain the object via node corresponding with this STA of being selected by this STA or AP, communicate by this object via node and above-mentioned STA, owing to having increased trunking mechanism between AP and STA, thereby solved in the time that WLAN coverage is large, throughput declines to a great extent and the low problem of communication reliability, and then effectively improve the throughput of system.
Further, in another embodiment of the present invention, above-mentioned receiver module 142, the channel measurement request frame sending specifically for receiving AP or STA.
Further, if described via node is used as described object via node, receiver module 112, the first notification message of the mark that carries described object via node also sending for receiving STA, or, the second notification message of the mark that carries described object via node that reception AP sends.
Above-mentioned each module work can, with reference to embodiment of the method shown in Fig. 3, not repeat them here.
Figure 15 is the structural representation of another access point provided by the invention one embodiment, as shown in figure 15, this access point 150 comprises: memory 151, receiver 152, processor 153 and transmitter 154, wherein, memory 151, receiver 152, processor 153 and transmitter 154 are connected by bus 155, particularly:
Memory 151 is for storing the order of instruction processorunit 153 executable operations;
Receiver 152, the relaying indication information sending for receiving via node, and set up associated according to described relaying indication information with described via node; The association request message also sending for receiving station STA, and set up associated according to described association request message with described STA;
Processor 153, for setting up the definite object via node corresponding with described STA of associated described via node, with by described object via node, communicates by letter with described STA.
Particularly, AP determines the object via node corresponding with this STA in the described via node of setting up association, can have following 4 kinds of implementations:
(1), in first kind of way, processor 153, for AP inquiry STA and the mapping relations of setting up associated described via node, determines the to be selected via node corresponding with described STA;
Transmitter 154, for to described via node transmitting channel measurement request frame to be selected, measure frame for described via node broadcast channel to be selected, so that described STA is according to the described channel measurement frame receiving, from described via node to be selected, select a via node, as object via node;
Processor 153, also when receive the first notification message of the mark that carries described object via node that described STA sends at described receiver module, according to the mark of described object via node, determines the object via node corresponding with described STA.
(2) in the second way, transmitter 154, for broadcast channel measurement request frame, for setting up associated via node according to the described channel measurement request frame receiving with described AP in the whole network, broadcast channel is measured frame, so that described STA is according to the described channel measurement frame receiving, from described the whole network, sets up in associated via node and select a via node with described AP, as object via node;
Processor 153, when receive the first notification message of the mark that carries described object via node that described STA sends at described receiver module, according to the mark of described object via node, determines the object via node corresponding with described STA.
(3), in the third mode, processor 153, sets up associated via node as via node to be selected for the BSS under described AP with described AP;
Transmitter 154, for the mark of described via node to be selected is sent to described STA, for described STA according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected, and according to the channel measurement frame receiving, from described via node to be selected, select a via node, as object via node; Described channel measurement frame is the channel measurement frame of described via node broadcast to be selected;
Processor 153, when the first notification message of the mark that carries described object via node also sending for the described STA receiving at described receiver module, according to the mark of described object via node, determines the object via node corresponding with described STA.
In (4) the 4th kinds of modes, processor 153, for measuring the positional information of described STA; Also, for according to described positional information, determine the object via node corresponding with described STA in the described via node of setting up association, the object via node that described STA is corresponding and the distance of described STA are less than the distance of other via node and described STA;
Transmitter 154, sends to described STA and described object via node for the mark of described object via node being carried to the second notification message.
Figure 16 is the structural representation of another website provided by the invention one embodiment, as shown in figure 16, this website 160 comprises: memory 161, receiver 162, processor 163 and transmitter 164, wherein, memory 161, receiver 162, processor 163 and transmitter 164 are connected by bus 165, particularly:
Memory 161 is for storing the order of instruction processorunit 163 executable operations;
Transmitter 164, for sending association request message to access point AP, according to described association request message, sets up associated with described STA for described AP;
Processor 163, for determining the object via node corresponding with described STA, and communicates by letter with described AP according to described object via node, and wherein said object via node is associated with described AP.
Further, receiver 162, for receiving the channel measurement frame of via node broadcast to be selected; Processor 163 specifically for according to described channel measurement frame, is selected a via node, as object via node from described via node to be selected; Transmitter 164, also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
Receiver 162, the mark of via node to be selected sending for receiving AP; Processor 163, specifically for according to the mark of described via node to be selected, by described sending module to described via node transmitting channel measurement request frame to be selected; And in the time that described receiver module receives the channel measurement frame that described via node to be selected sends according to described channel measurement request frame, according to described channel measurement frame, from described via node to be selected, select a via node, as object via node; Transmitter 164, also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
Receiver 162, for receiving the second notification message of the mark that carries object via node that described AP sends; Processor 163, specifically for according to described the second notification message, using the via node of the mark correspondence of described object via node as object via node.
Figure 17 is the structural representation of another via node provided by the invention one embodiment, and as shown in figure 17, this via node 170 comprises: receiver 171 and transmitter 172, wherein:
Transmitter 172, for sending relaying indication information to AP, according to described relaying indication information, sets up associated with described via node for described AP;
Receiver 171, for receive channel measurement request frame;
Above-mentioned transmitter 172, also for according to channel measurement request frame, broadcast channel is measured frame, for listening to the STA that sends described channel measurement frame, according to described channel measurement frame, from broadcast the via node of described channel measurement frame, select a via node, as the object via node corresponding with described STA, wherein said object via node is associated with described AP.
Further, receiver 171, the channel measurement request frame sending specifically for receiving AP or STA.
Receiver 171, the first notification message of the mark that carries described object via node also sending for receiving STA, or, receive the second notification message of the mark that carries described object via node that AP sends.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, in the time carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (24)

1. a relay node selecting method, is characterized in that, comprising:
Access point AP receives the relaying indication information that via node sends, and sets up associated according to described relaying indication information with described via node;
The association request message that described AP receiving station STA sends, and set up associated according to described association request message with described STA;
Described AP, setting up definite object via node corresponding with described STA in associated described via node, with by described object via node, communicates by letter with described STA.
2. method according to claim 1, is characterized in that, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
Described AP inquiry STA and the mapping relations of setting up associated described via node, determine the to be selected via node corresponding with described STA, and to described via node transmitting channel measurement request frame to be selected, measure frame for described via node broadcast channel to be selected, so that described STA is according to the described channel measurement frame receiving, from described via node to be selected, select a via node, as object via node;
Described AP receives the first notification message of the mark that carries described object via node of described STA transmission, and according to the mark of described object via node, determines the object via node corresponding with described STA.
3. method according to claim 1, is characterized in that, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
Described AP broadcast channel measurement request frame, for setting up associated via node according to the described channel measurement request frame receiving with described AP in the whole network, broadcast channel is measured frame, so that described STA is according to the described channel measurement frame receiving, from described the whole network, set up in associated via node and select a via node with described AP, as object via node;
Described AP receives the first notification message of the mark that carries described object via node of described STA transmission, and according to the mark of described object via node, determines the object via node corresponding with described STA.
4. method according to claim 1, is characterized in that, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
In the BSS of described AP under described AP, set up associated via node as via node to be selected with described AP, and the mark of described via node to be selected is sent to described STA, for described STA according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected, and according to the channel measurement frame receiving, from described via node to be selected, select a via node, as object via node; Described channel measurement frame is the channel measurement frame of described via node broadcast to be selected;
Described AP receives the first notification message of the mark that carries described object via node of described STA transmission, and according to the mark of described object via node, determines the object via node corresponding with described STA.
5. method according to claim 1, is characterized in that, described AP determines the object via node corresponding with described STA in the described via node of setting up association, comprising:
Described AP measures the positional information of described STA;
Described AP, according to described positional information, determines the object via node corresponding with described STA in the described via node of setting up association, and the object via node that described STA is corresponding and the distance of described STA are less than the distance of other via node and described STA;
Described method also comprises:
Described AP is carried at the mark of described object via node in the second notification message, to send to described STA and described object via node.
6. a relay node selecting method, is characterized in that, comprising:
Site STA sends association request message to access point AP, according to described association request message, sets up associated with described STA for described AP;
Described STA determines the object via node corresponding with described STA, and communicates by letter with described AP according to described object via node, and wherein said object via node is associated with described AP.
7. method according to claim 6, is characterized in that, described STA determines the object via node corresponding with described STA, comprising:
Described STA receives the channel measurement frame of via node broadcast to be selected, and according to described channel measurement frame, selects a via node, as object via node from via node to be selected;
Described method also comprises:
Described STA is carried at the mark of described object via node in the first notification message, to send to described AP and described object via node.
8. method according to claim 6, is characterized in that, described STA determines the object via node corresponding with described STA, comprising:
Described STA receives the mark of the via node to be selected of AP transmission; And according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected;
Described STA receives the channel measurement frame that described via node to be selected sends according to described channel measurement request frame, and according to described channel measurement frame, selects a via node, as object via node from described via node to be selected;
Described method also comprises:
Described STA is carried at the mark of described object via node in the first notification message, to send to described AP and described object via node.
9. method according to claim 6, is characterized in that, described STA determines the object via node corresponding with described STA, comprising:
Described STA receives the second notification message of the mark that carries object via node of described AP transmission.
10. a relay node selecting method, is characterized in that, comprising:
Via node sends relaying indication information to AP, according to described relaying indication information, sets up associated with described via node for described AP;
Described via node receive channel measurement request frame, and according to channel measurement request frame, broadcast channel is measured frame, for listening to the STA that sends described channel measurement frame, according to described channel measurement frame, from broadcast described channel measurement frame and set up associated via node and select a via node with described AP, as the object via node corresponding with described STA.
11. methods according to claim 10, is characterized in that, described via node receive channel measurement request frame, comprising:
Described via node receives the channel measurement request frame of AP or STA transmission.
12. methods according to claim 10, is characterized in that, also comprise:
If described via node is used as described object via node, receive the first notification message of the mark that carries described object via node of STA transmission, or, the second notification message of the mark that carries described object via node that reception AP sends.
13. 1 kinds of access points, is characterized in that, comprising:
Receiver module, the relaying indication information sending for receiving via node, and set up associated according to described relaying indication information with described via node;
Described receiver module, the association request message also sending for receiving station STA, and set up associated according to described association request message with described STA;
Determination module, for setting up the definite object via node corresponding with described STA of associated described via node, with by described object via node, communicates by letter with described STA.
14. access points according to claim 13, is characterized in that, described determination module comprises:
Determining unit, for AP inquiry STA and the mapping relations of setting up associated described via node, determines the to be selected via node corresponding with described STA;
Transmitting element, for to described via node transmitting channel measurement request frame to be selected, measure frame for described via node broadcast channel to be selected, so that described STA is according to the described channel measurement frame receiving, from described via node to be selected, select a via node, as object via node;
Described determining unit also when receive the first notification message of the mark that carries described object via node that described STA sends at described receiver module, according to the mark of described object via node, is determined the object via node corresponding with described STA.
15. access points according to claim 13, is characterized in that, also comprise:
Broadcast module, for broadcast channel measurement request frame, for setting up associated via node according to the described channel measurement request frame receiving with described AP in the whole network, broadcast channel is measured frame, so that described STA is according to the described channel measurement frame receiving, from described the whole network, set up in associated via node and select a via node with described AP, as object via node;
When described determination module is specifically for the first notification message of the mark that carries described object via node that receives described STA at described receiver module and send, according to the mark of described object via node, determine the object via node corresponding with described STA.
16. access points according to claim 13, is characterized in that, described determination module comprises:
Determining unit, sets up associated via node as via node to be selected for the BSS under described AP with described AP;
Transmitting element, for the mark of described via node to be selected is sent to described STA, for described STA according to the mark of described via node to be selected, to described via node transmitting channel measurement request frame to be selected, and according to the channel measurement frame receiving, from described via node to be selected, select a via node, as object via node; Described channel measurement frame is the channel measurement frame of described via node broadcast to be selected;
Described determining unit, when the first notification message of the mark that carries described object via node also sending for the described STA receiving at described receiver module, according to the mark of described object via node, determines the object via node corresponding with described STA.
17. access points according to claim 13, is characterized in that, described determination module comprises:
Measuring unit, for measuring the positional information of described STA;
Determining unit, be used for according to described positional information, in the described via node of setting up association, determine the object via node corresponding with described STA, the object via node that described STA is corresponding and the distance of described STA are less than the distance of other via node and described STA;
Described access point also comprises:
Sending module, sends to described STA and described object via node for the mark of described object via node being carried to the second notification message.
18. 1 kinds of websites, is characterized in that, comprising:
Sending module, for sending association request message to access point AP, according to described association request message, sets up associated with described STA for described AP;
Determination module, for determining the object via node corresponding with described STA, and communicates by letter with described AP according to described object via node, and wherein said object via node is associated with described AP.
19. websites according to claim 18, is characterized in that, also comprise:
Receiver module, for receiving the channel measurement frame of via node broadcast to be selected;
Described determination module, specifically for according to described channel measurement frame, is selected a via node, as object via node from described via node to be selected;
Described sending module also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
20. websites according to claim 18, is characterized in that, described receiver module, the mark of via node to be selected sending for receiving AP;
Described determination module is specifically for according to the mark of described via node to be selected, by described sending module to described via node transmitting channel measurement request frame to be selected; And in the time that described receiver module receives the channel measurement frame that described via node to be selected sends according to described channel measurement request frame, according to described channel measurement frame, from described via node to be selected, select a via node, as object via node;
Described sending module also sends to described AP and described object via node for the mark of described object via node being carried to the first notification message.
21. websites according to claim 18, is characterized in that,
Described receiver module, also for receiving the second notification message of the mark that carries object via node that described AP sends;
Described determination module is specifically for according to described the second notification message, using the via node of the mark correspondence of described object via node as object via node.
22. 1 kinds of via nodes, is characterized in that, comprising:
Sending module, for sending relaying indication information to AP, according to described relaying indication information, sets up associated with described via node for described AP;
Receiver module, for receive channel measurement request frame;
Described sending module is also for according to channel measurement request frame, broadcast channel is measured frame, for listening to the STA that sends described channel measurement frame, according to described channel measurement frame, from broadcast described channel measurement frame and set up associated via node and select a via node with described AP, as the object via node corresponding with described STA.
23. via nodes according to claim 22, is characterized in that, described receiver module, the channel measurement request frame sending specifically for receiving AP or STA.
24. via nodes according to claim 22, is characterized in that,
Described receiver module, the first notification message of the mark that carries described object via node also sending for receiving STA, or, receive the second notification message of the mark that carries described object via node that AP sends.
CN201210580338.XA 2012-12-27 2012-12-27 Relay node selection method and apparatus Pending CN103906178A (en)

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