CN106998568A - A kind of space sharing method and control node - Google Patents
A kind of space sharing method and control node Download PDFInfo
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- CN106998568A CN106998568A CN201610046349.8A CN201610046349A CN106998568A CN 106998568 A CN106998568 A CN 106998568A CN 201610046349 A CN201610046349 A CN 201610046349A CN 106998568 A CN106998568 A CN 106998568A
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- website
- targeted sites
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Abstract
The embodiment of the present invention discloses a kind of space sharing method and control node, and this method includes：Control node is at least two targeted sites to sending channel measurement frame, receive directional channel quality measurement reports of at least two each websites of targeted sites centering to transmission, judge that can at least two targeted sites be shared to carry out space according to directional channel quality measurement reports, channel measurement frame includes each website to the channel resource for directional channel mass measurement；When at least two targeted sites are shared to that can carry out space, judge whether current DTI has enough time so that at least two targeted sites to communicating；When current DTI has enough time so that at least two targeted sites to communicating, indicate at least two targeted sites being communicated current DTI using destination channel resource simultaneously to sending Communications Authorization frame, Communications Authorization frame at least two each websites of targeted sites centering.Implement the embodiment of the present invention, the efficiency of space shared mechanism can be improved.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of space sharing method and control node.
Background technology
Institute of Electrical and Electric Engineers (Institute of Electrical and Electronics Engineers,
IEEE) 802.11ad is the WLAN (Wireless on 60GHz frequency bands for modular working
Local Area Networks, WLAN) equipment technical protocol, entered using IEEE 802.11ad agreements
The network of row communication is commonly known as gigabit (Directional Multi Gigabit, DMG) network,
Generally it is made up of in DMG networks a control node and multiple websites (Station, STA).Due to
The aerial loss of signal transmitted on 60GHz frequency bands is larger, therefore, in control node and website,
Or before being communicated between two websites, typically to first pass through beam forming (Beamforming, BF)
Training (training) is found after suitable mutual transmission antenna pattern and/or receiving antenna mode, then is made
Communicated with the transmission antenna pattern and/or receiving antenna mode.
Transmission antenna pattern and/or receiving antenna mode can be transmission antenna direction and/or reception antenna side
To because antenna has multiple sectors, therefore, there is also multiple transmission antenna directions and/or reception antenna
Direction.Due to there is transmission antenna direction and/or reception antenna direction, therefore it is operated in similar frequency bands
Multiple adjacent S TA, their directional transmissions can be overlapping in time domain, if transmission antenna direction and/
Or reception antenna direction meets condition simultaneously, you can communicated in similar frequency bands.In the field,
It is operated in multiple adjacent S TA in similar frequency bands, the skill that their directional transmissions can be overlapping in time domain
Art is commonly referred to as that (Spatial sharing, SPSH) is shared in space.
At present, a kind of conventional space sharing method is：When control node is in the data transfer of current period
Determine that two websites are shared to that can carry out space between interval (Data Transmission Interval, DTI)
When, by the beacon frame information interval of next cycle (Beacon Transmission Interval, BTI)
Or notification frame sends interval (Announcement Transmission Interval, ATI) and stood to the two
Point is to sending schedule information, so that the two websites the DTI of next cycle using same channel
Resource is communicated simultaneously.However, in the above-mentioned methods, it is determined that two websites are to that can carry out space
After shared, it is necessary to when can just make between the DTI of next cycle the two websites by space share into
Row communication, so that reducing the efficiency of space shared mechanism.
The content of the invention
The embodiment of the invention discloses a kind of space sharing method and control node, shared for improving space
The efficiency of mechanism.
First aspect of the embodiment of the present invention discloses a kind of space sharing method, and methods described is applied to control and saved
Point, the control node manages at least three websites, and methods described includes：
When each website of at least two targeted sites centerings is agreed to be oriented mass measurement, the control
Node, to sending channel measurement frame, and receives at least two target at least two targeted sites
The each website of website centering is to the directional channel quality measurement reports of transmission, and according to the directional channel
Quality measurement reports judge that can at least two targeted sites be shared to carry out space, and the channel is surveyed
Amount frame can indicate that at least two targeted sites are surveyed to being oriented channel quality measurement, the channel
Directional channel quality measurement information can be included by measuring frame, and the orientation quality measurement information can include described
At least two each websites of targeted sites centering are to the channel resource for directional channel mass measurement；
When judging that at least two targeted sites are shared to that can carry out space, the control node is sentenced
Whether current DTI (i.e. the DTI in this cycle) of breaking has enough time so that at least two targeted sites pair
Communicated；
When judging that the current DTI has enough time so that at least two targeted sites to being led to
During letter, the control node is to each website of at least two targeted sites centering to sending Communications Authorization
Frame, the destination channel that the Communications Authorization frame can be including at least two targeted sites to being communicated
Resource, the Communications Authorization frame can indicate at least two targeted sites the current DTI
Communicated simultaneously using the destination channel resource.
It is used as a kind of possible embodiment, when the quantity of the targeted sites pair is two, the control
Node can be described first to first object website pair and the second targeted sites to sending the first channel measurement frame
First channel measurement frame is used to indicate the first object website to being communicated and second targeted sites
To being oriented channel quality measurement；Second targeted sites are received afterwards to believe the first orientation of transmission
Road quality measurement reports, the first directional channel quality measurement reports can include the first object station
First signal to noise ratio of second targeted sites to measurement described in when point is to communication；Judging first signal to noise ratio is
It is no to be less than preset value；When first signal to noise ratio is less than preset value, to the first object website pair and
Second targeted sites are used to indicate institute to sending second channel measurement frame, the second channel measurement frame
The second targeted sites are stated to being communicated and the first object website is to being oriented channel quality measurement；
Receive second directional channel quality measurement reports of the first object website to transmission, second orientation
The first object website pair when channel quality measurement report can include second targeted sites to communication
Second signal to noise ratio of measurement；Judge whether second signal to noise ratio is less than the preset value；When described second
When signal to noise ratio is less than the preset value, determine that at least two targeted sites are shared to that can carry out space.
As a kind of possible embodiment, each website of at least two targeted sites centering is to sending
Directional channel quality measurement reports can also include each website to communication the time required to；
The control node judges whether current DTI has enough time so that at least two targeted sites
During to communicating, it can be determined that whether current DTI remaining times are more than or equal to each website pair
Maximum duration in the time required to communication, when the remaining time being more than or equal to the maximum duration,
Determine that the current DTI has enough time so that at least two targeted sites to communicating.
As a kind of possible embodiment, when judging that it is described that the current DTI makes without time enough
When at least two targeted sites are to communicating, the control node is in BTI, ATI or DTI to described
At least two each websites of targeted sites centering can be including described in extremely to sending management frame, the management frame
Few two targeted sites to the destination channel resource that is communicated, the management frame be used to indicating described at least
Two targeted sites next DTI using the destination channel resource being communicated simultaneously.
As a kind of possible embodiment, the control node is first received at least three website extremely
The channel that each website is sent in the channel resources request that few two websites are sent, at least two website
Resource request carries the information of another website communicated with needed for each website；Afterwards according to default
Rule chooses at least two targeted sites pair from least two website centerings, and at least two target
The each website of website centering please to sending directional channel quality measurement request, the directional channel mass measurement
Ask for indicating that each website of at least two targeted sites centering is believed according to the state of each website
Breath judges whether to need to be oriented mass measurement, and at least two website is to being at least two station
The website pair that each website and another website communicated with needed for each website are constituted in point；When connecing
Receive the need for each website of at least two targeted sites centering is sent and be oriented quality measurement information
When, just at least two targeted sites to sending channel measurement frame.
Second aspect of the embodiment of the present invention discloses a kind of control node, the unit energy that the control node includes
Enough perform space sharing method disclosed in first aspect of the embodiment of the present invention.
The third aspect of the embodiment of the present invention discloses a kind of control node, and the control node can include：One
Individual or multiple processors, memory, transceiver and one or more programs, it is the processor, described
Memory is connected with the transceiver by the bus system；
Wherein, one or more of programs are stored in the memory, one or more of journeys
Sequence includes instruction, and the instruction makes the control node perform the present invention when being performed by the control node
Space sharing method disclosed in embodiment first aspect.
Fourth aspect of the embodiment of the present invention discloses a kind of readable storage medium storing program for executing, and the readable storage medium storing program for executing is stored
Control node is used for the program code for performing space sharing method disclosed in first aspect of the embodiment of the present invention.
In the embodiment of the present invention, when control node is according to directional channel quality of at least two websites to transmission
Measurement report determines that this at least two website is shared to that can carry out space, and determines the DTI of current period
Between when having enough time so that this at least two website to communicating, control node is to this at least two station
Point sends Communications Authorization frame, indicates this at least two website same using same channel resource current DTI
Shi Jinhang communicates, it is not necessary to when just being communicated between next DTI, can improve space shared mechanism
Efficiency and the utilization rate for improving resource.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to needed for embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only of the invention
Some embodiments, for those of ordinary skill in the art, are not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that network architecture schematic diagram is shared in a kind of space disclosed in the embodiment of the present invention；
Fig. 2 is a kind of schematic flow sheet of space sharing method disclosed in the embodiment of the present invention；
Fig. 3 is the schematic flow sheet of another space sharing method disclosed in the embodiment of the present invention；
Fig. 4 is a kind of structural representation of control node disclosed in the embodiment of the present invention；
Fig. 5 is the structural representation of another control node disclosed in the embodiment of the present invention；
Fig. 6 is the structural representation of another control node disclosed in the embodiment of the present invention；
Fig. 7 is a kind of schematic diagram in cycle disclosed in the embodiment of the present invention；
Fig. 8 is a kind of structural representation of channel measurement frame disclosed in the embodiment of the present invention；
Fig. 9 is a kind of schematic diagram of disposable transmission channel measurement frame disclosed in the embodiment of the present invention；
Figure 10 is a kind of schematic diagram of separately send channel measurement frame disclosed in the embodiment of the present invention；
Figure 11 is a kind of schematic diagram for separately carrying out channel quality disclosed in the embodiment of the present invention；
Figure 12 is a kind of structural representation of notification frame disclosed in the embodiment of the present invention；
Figure 13 is that a kind of control node sends directional channel quality measurement request disclosed in the embodiment of the present invention
Schematic diagram；
Figure 14 is that another control node sends directional channel quality measurement request disclosed in the embodiment of the present invention
Schematic diagram；
Figure 15 be a kind of website A disclosed in the embodiment of the present invention communicated with website B, website C with control
The schematic diagram that node is communicated.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the invention, without
It is whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
The embodiment of the invention discloses a kind of space sharing method and control node, shared for improving space
The efficiency of mechanism.It is described in detail individually below.
A kind of space sharing method and control node disclosed in embodiment for a better understanding of the present invention, under
First the network architecture that the embodiment of the present invention is used is described for face.Referring to Fig. 1, Fig. 1 is of the invention real
Apply a kind of space disclosed in example and share network architecture schematic diagram.As shown in figure 1, the network architecture is shared in the space
The website 102 of control node 101 and at least three can be included, wherein, Fig. 1 shows the example of four websites
Son.Control node 101 can be access point (Access Point, AP), for WLAN
Website in (Wireless Local Area Network, ALAN) provides access service, be managed and
Coordinate；Can also be personal Basic Service Set control point (Personal basic service set (PBSS)
Control point, PCP), the website of wireless medium is accessed for coordinating other websites in PBSS.Control
By network connection between node 101 and website 102, also by network connection between website 102, control node 101
Can be website 102 in website to allocation of communication channels resource, make the website in website 102 to being led to
Letter；It can also be control node 101 and an allocation of communication channels resource of website 102, make control node 101
Communicated with this website 102.
The network architecture is shared based on the space shown in Fig. 1, disclosed referring to Fig. 2, Fig. 2 is the embodiment of the present invention
A kind of space sharing method schematic flow sheet.Wherein, the space sharing method is from control node 101
Angle describe.As shown in Fig. 2 the space sharing method may comprise steps of.
201st, control node at least two targeted sites to send channel measurement frame, and receive this at least two
The individual each website of targeted sites centering is believed to the directional channel quality measurement reports of transmission, and according to orientation
Road quality measurement reports judge this at least two targeted sites to can carry out space share, when this at least two
When individual targeted sites are shared to that can carry out space, step 202 is performed, when this at least two targeted sites is not to
Can carry out space it is shared when, will terminate.
In the present embodiment, the time in control node is divided according to periodicity, and each cycle wraps successively
Include BTI, association beamforming training (Association BeamForming Training, A-BFT), ATI
And DTI.Can only be that control node sends beacon frame at BTI intervals, website receives the letter that control node is sent
Frame is marked, website can not send data.If website receives the beacon of control node transmission at BTI intervals
(Beacon) frame, then competition slot resource (SSW slot) progress R-TXSS (stands in A-BFT intervals
Point transmitting antenna) beamforming training.Control node gives at least one website sending tube in ATI intervals
Reason/control frame, station replies confirm, circulate successively.In DTI intervals, control node can be whole
DTI is divided into access periods (Contention-Based Access Period, CBAP) and service based on competition
Phase (Service period, SP) two parts, website is connect according to the configured information at BTI or ATI intervals
Enter.Referring to Fig. 7, Fig. 7 is a kind of schematic diagram in cycle disclosed in the embodiment of the present invention.In the figure 7,
PCP/AP is control node.
, can when two websites are to can use same channel resource to communicate simultaneously in the present embodiment
Handling capacity, resource utilization to improve communication system etc..Therefore, when the website Shen that control node is managed
Channel resource and it please agree to when being oriented channel quality measurement, control node can be at least two targets
Each website of website centering sends channel measurement frame, so that at least two targeted sites according to channel to surveying
The instruction of amount frame is oriented channel quality measurement, even if a website of at least two targeted sites centerings
To communicating, other websites influence (measuring signal to noise ratio) to communicating on measuring this website on respective,
After all websites of at least two targeted sites centerings are to all having communicated, at least two targeted sites
Each website of centering is to including the signal to noise ratio of each measurement to send in directional channel quality measurement reports
To control node, control node can judge this at least two target according to directional channel quality measurement reports
Can website be shared to carry out space, that is, judges whether each website is respectively less than to the signal to noise ratio reported default
Value, when each website is respectively less than preset value to the signal to noise ratio reported, shows this at least two targeted sites
Shared to space can be carried out, step 202 will be performed, when each website in the signal to noise ratio that reports to existing
When signal to noise ratio is more than or equal to preset value, show that this at least two targeted sites is shared to that can not carry out space,
It will terminate.Wherein, in the above method, control node by channel measurement frame be disposably sent to this at least two
Each website pair of individual targeted sites centering, therefore, it can disposable test complete and by directional channel quality
Measurement report is disposably sent to control node, it is possible to reduce control node and this at least two targeted sites
Interaction times between centering, so as to reduce, space is shared to fix time really.Wherein, channel measurement
Frame is used to indicate this at least two targeted sites to being oriented channel quality measurement, and channel measurement frame can be with
Including directional channel quality measurement information, orientation quality measurement information can include this at least two Target Station
The point each website of centering is to the channel resource for directional channel mass measurement.Referring to Fig. 8, Fig. 8 is
A kind of structural representation of channel measurement frame disclosed in the embodiment of the present invention.Channel measurement frame can be carried
The notification frame in beacon Beacon frames or ATI in BTI, Beacon frames or notification frame can include
Distribute domain, directional channel quality measurement information be packaged in distribution domain in, distribution domain can include control domain and
Information field, control domain can include identification information, and identification information is used for the information entrained by identification information field
Classification, information category, which can include DCH resource allocation information classification, competitive channel resource allocation, to be believed
Cease classification or directional channel quality measurement information classification.When the letter entrained by identification information identification information field
When ceasing classification for directional channel quality measurement information classification, information field can include channel identifier field, stand
Point identification field and channel time domain information field, channel identifier field are packaged for the survey of directional channel quality
The working frequency of the channel resource of amount, site identity field encapsulates at least two each mesh of targeted sites centering
The mark of labeling station point pair, the mark of targeted sites pair can include one or two of targeted sites centering
The mark of website, channel time domain information field is packaged at least two channels of directional channel mass measurement
In resource at the beginning of first channel resource time domain between and duration.Referring to Fig. 9, Fig. 9 is this
A kind of schematic diagram of disposable transmission channel measurement frame disclosed in inventive embodiments.As shown in figure 9, control
Node by channel measurement frame between Grantperiod by being disposably sent to website A, B, C and D.
In the present embodiment, control node can also a website quality that is oriented of one website pair is surveyed
Amount.For example, when the quantity of targeted sites pair is two, control node can be first to first object station
Point pair and the second targeted sites can indicate first object website to progress to sending the first channel measurement frame
Communication and the second targeted sites receive the to being oriented channel quality measurement (measuring the first signal to noise ratio)
Two targeted sites are to the second targeted sites when including first object website to communication of transmission to the first of measurement
First directional channel quality measurement reports of signal to noise ratio, judge whether the first signal to noise ratio is less than preset value, when
When first signal to noise ratio is less than preset value, show that the two targeted sites are shared to that may carry out space, will be after
Continue to first object website pair and the second targeted sites to sending second channel measurement frame, second can be indicated
Targeted sites are to being communicated and first object website is to being oriented channel quality measurement, and receive the
One targeted sites are to first object website when including the second targeted sites to communication of transmission to the second of measurement
Second directional channel quality measurement reports of signal to noise ratio, judge whether the second signal to noise ratio is less than preset value；When
When second signal to noise ratio is less than the preset value, show that the two targeted sites are shared to that can carry out space.
When the first signal to noise ratio is not less than preset value, show that the two targeted sites are shared to that can not carry out space,
Influence when can be without measuring the second targeted sites to communicating to first object website pair, Ke Yijie
Make an appointment.When the first signal to noise ratio, which is less than preset value but the second signal to noise ratio, is not less than preset value, show this two
Individual targeted sites are shared to that can not carry out space, will terminate.It is implementation of the present invention to refer to 10, Figure 10 such as
A kind of disclosed schematic diagram of separately send channel measurement frame of example.As shown in Figure 10, control node is first
Communicated between individual Grant period to website A, B, C and D transmitting station A and B and website C and D enter
The channel measurement frame of row measurement, control node is between second Grant Period to website A, B, C and D
The channel measurement frame that transmitting station C and D are communicated and website A and B are measured.Refer to Figure 11,
Figure 11 is a kind of schematic diagram for separately carrying out channel quality disclosed in the embodiment of the present invention.As shown in figure 11,
First allow website A and B to be communicated and website C and D are measured, the signal to noise ratio that website C and D are reported is not
Less than preset value, therefore, subsequent operation will not be performed.
202nd, control node judges whether current DTI has enough time so that this at least two targeted sites pair
Communicated, when having enough time so that this at least two targeted sites to communicating, perform step
203, when making this at least two targeted sites to communicating without time enough, perform step 204.
In the present embodiment, directional channel quality of this each website of at least two targeted sites centering to transmission
The time required to measurement report also includes each website to communication.When judging this at least two targeted sites pair
Can carry out space it is shared when, will continue to judge whether current DTI has enough time so that this at least two mesh
Labeling station point judges whether the DTI remaining times of current period are more than or equal to each station to communicating, that is,
Point that is to say to the maximum duration in communication required time and judge whether the current period remaining time is more than
Or equal to each website to the maximum duration in communication required time, when the DTI or current weeks of current period
When the phase remaining time is more than or equal to the maximum duration, it is determined that current DTI has enough time so that at least
Two targeted sites are to communicating.
203rd, control node to this each website of at least two targeted sites centering to send Communications Authorization frame.
In the present embodiment, when judging that current DTI has enough time so that this at least two targeted sites to entering
Row communication when, control node to this each website of at least two targeted sites centering to send Communications Authorization frame,
This at least two targeted sites can be according to Communications Authorization after the Communications Authorization frame wait XIFS times to receiving
Frame is communicated, and Communications Authorization frame, which can include this at least two targeted sites, to be believed the target communicated
Road resource, Communications Authorization frame can indicate this at least two targeted sites current DTI while using mesh
Mark channel resource is communicated.Figure 12 is referred to, Figure 12 is a kind of notification frame disclosed in the embodiment of the present invention
Structural representation.
204th, control node in BTI, ATI or DTI each website pair into this at least two targeted sites pair
Send management frame.
When judging that current DTI makes this at least two targeted sites to communicating without time enough, control
Node processed can next cycle BTI or ATI into this at least two targeted sites pair each website pair
Send management frame, can also current DTI or next DTI into this at least two targeted sites pair it is each
Website is to sending management frame, the target that management frame can be including this at least two targeted sites to being communicated
Channel resource, management frame can indicate this at least two targeted sites the DTI of next cycle simultaneously
Communicated using destination channel resource.
In the space sharing method described by Fig. 2, when control node according at least two websites to transmission
Directional channel quality measurement reports determine that this at least two website is shared to that can carry out space, and determine to work as
When this at least two website is had enough time so that between the DTI in preceding cycle to communicating, control node to this
At least two websites send Communications Authorization frame, indicate that this at least two website is same being used current DTI
Channel resource is communicated simultaneously, it is not necessary to when just being communicated between next DTI, can improve space
The efficiency of shared mechanism and the utilization rate for improving resource.
The network architecture is shared based on the space shown in Fig. 1, disclosed referring to Fig. 3, Fig. 3 is the embodiment of the present invention
Another space sharing method schematic flow sheet.Wherein, the space sharing method is from control node
101 angle is described.As shown in figure 3, the space sharing method may comprise steps of.
301st, control node receives the channel resources request that at least two websites are sent at least three websites.
In the present embodiment, control node management at least three websites at least two websites A-BFT,
ATI, DTI CBAP stages or DTI SP stages send channel resources request to control node, and this is at least
The channel resources request that each website is sent in two websites carries communicated with needed for each website another
The information of website.In Fig. 9 and Figure 10 website in A-BFT, ATI or DTI the CBAP stages to control node
Send channel resources request.
302nd, control node chooses at least two targeted sites according to preset rules from least two website centerings
It is right, and to this each website of at least two targeted sites centering to sending directional channel quality measurement request.
In the present embodiment, control node is received after the channel resources request of this at least two website transmission,
From at least two website centerings at least two will be chosen according to the preset rules such as handling capacity of increase communication system
Individual targeted sites pair, this at least two website to be in this at least two website each website and with it is each
The website pair that another website of communication needed for website is constituted, this backward at least two targeted sites centering it is every
Individual website is to sending directional channel quality measurement request.Wherein, the quantity of this at least two targeted sites pair
Less than or equal to the quantity of this at least two website pair.Figure 13 is referred to, Figure 13 is the embodiment of the present invention
A kind of disclosed control node sends the schematic diagram of directional channel quality measurement request.Figure 14 is referred to, is schemed
14 be that another control node sends showing for directional channel quality measurement request disclosed in the embodiment of the present invention
It is intended to.As shown in Figure 13 and Figure 14, control node is in channel quality measurement Period
Between send directional channel quality measurement request.Wherein, Figure 13 is corresponding with Fig. 9, Figure 14 and Figure 10
It is corresponding.Directional channel quality measurement request can indicate this each website of at least two targeted sites centering
Judged whether to need to be oriented mass measurement according to the status information of each website.
303rd, it is oriented matter the need for each website transmission of this at least two targeted sites centering is received
During measurement information, control node, to sending channel measurement frame, and receives this at least two targeted sites
At least two each websites of targeted sites centering to the directional channel quality measurement reports of transmission, and according to
Directional channel quality measurement reports judge that can this at least two targeted sites be shared to carry out space, when this
When at least two targeted sites are shared to that can carry out space, step 304 is performed, when this at least two Target Station
When point is shared to that can not carry out space, it will terminate.
Wherein, step 304-306 is identical with the step 202-204 in preceding embodiment, does not repeat herein.
In the space sharing method described by Fig. 3, when control node according at least two websites to transmission
Directional channel quality measurement reports determine that this at least two website is shared to that can carry out space, and determine to work as
When this at least two website is had enough time so that between the DTI in preceding cycle to communicating, control node to this
At least two websites send Communications Authorization frame, indicate that this at least two website is same being used current DTI
Channel resource is communicated simultaneously, it is not necessary to when just being communicated between next DTI, can improve space
The efficiency of shared mechanism and the utilization rate for improving resource.
In one embodiment, a website of this at least two targeted sites centering is to being by a website
Constituted with control node, refer to Figure 15, Figure 15 is a kind of website A disclosed in the embodiment of the present invention and station
Point B is communicated, the schematic diagram that website C is communicated with control node.
The network architecture is shared based on the space shown in Fig. 1, disclosed referring to Fig. 4, Fig. 4 is the embodiment of the present invention
A kind of control node structural representation.As shown in figure 4, the control node can include：
First judging unit 401, for, to sending channel measurement frame, and being connect at least two targeted sites
Directional channel quality measurement reports of this each website of at least two targeted sites centering to transmission are received, and
Judge that can this at least two targeted sites be shared to carry out space according to directional channel quality measurement reports,
Channel measurement frame is used to indicate that this at least two targeted sites is surveyed to being oriented channel quality measurement, channel
Measure frame can include directional channel quality measurement information, orientation quality measurement information can include this at least two
The individual each website of targeted sites centering is to the channel resource for directional channel mass measurement；
Second judging unit 402, for when the judged result of the first judging unit 401 is is, judging
Whether current DTI has enough time so that this at least two targeted sites to communicating；
Communication unit 403, for when the second judging unit 402 judged result for be when, to this at least two
The individual each website of targeted sites centering to send Communications Authorization frame, Communications Authorization frame can include this at least two
Individual targeted sites are to the destination channel resource communicated, and Communications Authorization frame is for indicating this at least two mesh
Labeling station point current DTI using destination channel resource being communicated simultaneously.
Correspondingly, when the judged result of the first judging unit 401 is is, it will terminate.
In the control node described by Fig. 4, when control node is according to orientation of at least two websites to transmission
Channel quality measurement report determines that this at least two website is shared to that can carry out space, and determines current week
When this at least two website is had enough time so that between the DTI of phase to communicating, control node to this at least
Two websites send Communications Authorization frame, indicate this at least two website using same channel current DTI
Resource is communicated simultaneously, it is not necessary to when just being communicated between next DTI, can be improved space and be shared
The efficiency of mechanism and the utilization rate for improving resource.
The network architecture is shared based on the space shown in Fig. 1, disclosed referring to Fig. 5, Fig. 5 is the embodiment of the present invention
Another control node structural representation.Wherein, the control node shown in Fig. 5 is to shown in Fig. 4
Control node optimizes what is obtained, wherein：
When the quantity of targeted sites pair is two, the first judging unit 401 can include：
Communicate subelement 4011, for believing to first object website pair and the second targeted sites sending first
Road measures frame, and the first channel measurement frame is used to indicate first object website to being communicated and the second Target Station
Point is to being oriented channel quality measurement；
Communicate subelement 4011, is additionally operable to receive first directional channel quality of second targeted sites to transmission
Measurement report, second when the first directional channel quality measurement reports can include first object website to communication
First signal to noise ratio of the targeted sites to measurement；
First judgment sub-unit 4012, for judge communication subelement 4011 receive the first signal to noise ratio be
It is no to be less than preset value；
Communicate subelement 4011, is additionally operable to when the judged result of the first judgment sub-unit 4012 is is,
To first object website pair and the second targeted sites to sending second channel measurement frame, second channel measurement frame
For indicating the second targeted sites to being communicated and first object website is to being oriented channel quality measurement；
Communicate subelement 4011, is additionally operable to receive second directional channel quality of the first object website to transmission
Measurement report, first when the second directional channel quality measurement reports can include the second targeted sites to communication
Second signal to noise ratio of the targeted sites to measurement；
Second judgment sub-unit 4013, for judge communicate subelement 4011 receive the second signal to noise ratio whether
Less than preset value, when the judged result of the second judgment sub-unit is is, the two targeted sites pair are determined
Space can be carried out to share.
As a kind of possible embodiment, this each website of at least two targeted sites centering is to transmission
The time required to directional channel quality measurement reports also include each website to communication；
Second judging unit 402, specifically for judging it is each whether current DTI remaining times are more than or equal to
Website is to the maximum duration in communication required time, when the remaining time being more than or equal to the maximum duration,
It is determined that current DTI has enough time so that this at least two targeted sites to communicating.
As a kind of possible embodiment, communication unit 403 is additionally operable to when the current DTI is without enough
When time makes this at least two targeted sites to communicating, in BTI, ATI or DTI to this at least two mesh
The labeling station each website of point centering can include this at least two targeted sites pair to sending management frame, management frame
The destination channel resource communicated, management frame can serve to indicate that this at least two targeted sites under
Communicated simultaneously using destination channel resource between one DTI.
As a kind of possible embodiment, communication unit 403 is additionally operable to at least two targeted sites
Before transmission channel measurement frame, the channel resource that at least two websites are sent at least three websites is received
The channel resources request that each website is sent in request, this at least two website is carried and each website institute
The information for another website that need to be communicated；
Control node can also include：
Unit 404 is chosen, for choosing at least two mesh from least two website centerings according to preset rules
Labeling station point pair, this at least two website to be in this at least two website each website and with each website
The website pair that another website of required communication is constituted；
Communication unit 403, is additionally operable to every to this at least two targeted sites centering of the selection of selecting unit 404
Individual website is to sending directional channel quality measurement request, and when receiving, this at least two targeted sites centering is every
When individual website is oriented quality measurement information the need for sending, perform described at least two targeted sites
To sending channel measurement frame, directional channel quality measurement request is used to indicate this at least two targeted sites pair
In each website judged whether to need to be oriented mass measurement according to the status information of each website.
In the control node described by Fig. 5, when control node is according to orientation of at least two websites to transmission
Channel quality measurement report determines that this at least two website is shared to that can carry out space, and determines current week
When this at least two website is had enough time so that between the DTI of phase to communicating, control node to this at least
Two websites send Communications Authorization frame, indicate this at least two website using same channel current DTI
Resource is communicated simultaneously, it is not necessary to when just being communicated between next DTI, can be improved space and be shared
The efficiency of mechanism and the utilization rate for improving resource.
The network architecture is shared based on the space shown in Fig. 1, disclosed referring to Fig. 6, Fig. 6 is the embodiment of the present invention
Another control node structural representation.The control node can include：One or more processors
601st, memory 602, transceiver 603 and one or more programs, processor 601,602 memories and
Transceiver 603 is connected by bus system；
Transceiver 603, at least two targeted sites to send channel measurement frame, and receive at least
Two each websites of targeted sites centering are to the directional channel quality measurement reports of transmission, channel measurement frame use
In instruction, this at least two targeted sites can include to being oriented channel quality measurement, channel measurement frame
Directional channel quality measurement information, orientation quality measurement information can include this at least two targeted sites pair
In each website to the channel resource for directional channel mass measurement；
One or more programs are stored in memory 602, and processor 601 is used to call in memory
The program of storage performs following operate：
Judge that can this at least two targeted sites be total to carry out space according to directional channel quality measurement reports
Enjoy；
When this at least two targeted sites is shared to that can carry out space, present data transmission interval D TI is judged
Whether have enough time so that this at least two targeted sites to communicating；
Transceiver 603, is additionally operable to when the current DTI has enough time so that this at least two targeted sites
During to communicating, to this each website of at least two targeted sites centering to sending Communications Authorization frame, lead to
Letter authorizes the destination channel resource that frame can be including this at least two targeted sites to being communicated, and communication is awarded
Power frame is used to indicate this at least two targeted sites using destination channel resource DTI in this prior simultaneously
Communicated.
As a kind of possible embodiment, when the quantity of targeted sites pair is two, transceiver 603 to
At least two targeted sites are to sending channel measurement frame, and it is each to receive this at least two targeted sites centering
Stand and a directional channel quality measurement reports sent, and processor 601 are surveyed according to directional channel quality
Amount report judges that can this at least two targeted sites be to carry out the shared mode in space：
Transceiver 603 to first object website pair and the second targeted sites to sending the first channel measurement frame,
First channel measurement frame is used to indicate first object website to being communicated and the second targeted sites are to being determined
To channel quality measurement；
Transceiver 603 receives first directional channel quality measurement reports of second targeted sites to transmission, the
The second targeted sites are to surveying when one orientation channel quality measurement report can include first object website to communication
First signal to noise ratio of amount；
Processor 601 judges whether the first signal to noise ratio is less than preset value；
When the first signal to noise ratio is less than preset value, the control node of transceiver 603 to first object website pair and
Second targeted sites are used to indicate the second Target Station to sending second channel measurement frame, second channel measurement frame
Point is to being communicated and first object website is to being oriented channel quality measurement；
Transceiver 603 receives second directional channel quality measurement reports of the first object website to transmission, the
First object website is to surveying when two directional channel quality measurement reports can include the second targeted sites to communication
Second signal to noise ratio of amount；
Processor 601 judges whether the second signal to noise ratio is less than preset value；
When the second signal to noise ratio is less than preset value, determine that two targeted sites are shared to that can carry out space.
As a kind of possible embodiment, this each website of at least two targeted sites centering is to transmission
The time required to directional channel quality measurement reports can also include each website to communication；
Processor 601 judges whether current DTI has enough time so that this at least two targeted sites to entering
Row communication mode be：
Judge current DTI remaining times whether be more than or equal to each website to communication the time required in most
For a long time, when the remaining time being more than or equal to the maximum duration, it is determined that when current DTI has enough
Between make this at least two targeted sites to communicating.
As a kind of possible embodiment, transceiver 603 is additionally operable to when the current DTI is without enough
When time makes this at least two targeted sites to communicating, BTI, ATI or DTI to it is described at least
Two each websites of targeted sites centering can include this at least two target to sending management frame, management frame
Website to the destination channel resource that is communicated, management frame be used to indicating this at least two targeted sites to
Communicated simultaneously using the destination channel resource between next DTI.
As a kind of possible embodiment, transceiver 603 is at least two targeted sites to sending channel
Measure before frame, transceiver 603 is additionally operable to receive what at least two websites at least three websites were sent
The channel resources request that each website is sent in channel resources request, this at least two website carry with often
The information of another website of communication needed for individual website；
The program that processor 601 is additionally operable to call memory 602 to store performs following operate：
At least two targeted sites pair are chosen from least two website centerings according to preset rules, and to this extremely
Few two each websites of targeted sites centering are to sending directional channel quality measurement request, directional channel quality
Measurement request is used to indicate that this each website of at least two targeted sites centering is believed according to the state of each website
Breath judges whether to need to be oriented mass measurement, during this at least two website is to being this at least two website
The website pair that each website and another website communicated with needed for each website are constituted；
Quality survey is oriented when receiving the need for each website of this at least two targeted sites centering is sent
Measure information when, transceiver 603 perform it is described at least two targeted sites to send channel measurement frame.
In the control node described by Fig. 6, when control node is according to orientation of at least two websites to transmission
Channel quality measurement report determines that this at least two website is shared to that can carry out space, and determines current week
When this at least two website is had enough time so that between the DTI of phase to communicating, control node to this at least
Two websites send Communications Authorization frame, indicate this at least two website using same channel current DTI
Resource is communicated simultaneously, it is not necessary to when just being communicated between next DTI, can be improved space and be shared
The efficiency of mechanism and the utilization rate for improving resource.
In one embodiment, a kind of readable storage medium storing program for executing, the readable storage medium storing program for executing stores control node
Program code for performing the corresponding space sharing method of Fig. 2 and Fig. 3 of the embodiment of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in a computer can
Read in storage medium, storage medium can include：Flash disk, read-only storage (read-only memory,
ROM), random access device (random access memory, RAM), disk or CD etc..
Space sharing method and control node disclosed in the embodiment of the present invention are described in detail above,
Specific case used herein is set forth to the principle and embodiment of the present invention, above example
Explanation be only intended to help to understand the method and its core concept of the present invention；Simultaneously for this area
Those skilled in the art, according to the thought of the present invention, have change in specific embodiments and applications
Become part, in summary, this specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of space sharing method, it is characterised in that methods described is applied to control node, the control
The website of node administration at least three processed, methods described includes：
The control node at least two targeted sites to send channel measurement frame, and receive described at least
Two each websites of targeted sites centering are to the directional channel quality measurement reports of transmission, and according to described
Directional channel quality measurement reports judge that can at least two targeted sites be shared to carry out space, institute
Stating channel measurement frame is used to indicate at least two targeted sites to being oriented channel quality measurement, institute
Stating channel measurement frame includes directional channel quality measurement information, and the orientation quality measurement information includes described
At least two each websites of targeted sites centering are to the channel resource for directional channel mass measurement；
When at least two targeted sites are shared to that can carry out space, the control node judges current
Whether data transfer interval DTI has enough time so that at least two targeted sites to communicating；
When the current DTI has enough time so that at least two targeted sites to communicating,
The control node is to each website of at least two targeted sites centering to sending Communications Authorization frame, institute
Communications Authorization frame is stated including at least two targeted sites to the destination channel resource that is communicated, it is described
Communications Authorization frame be used for indicate at least two targeted sites the current DTI while using institute
Destination channel resource is stated to be communicated.
2. according to the method described in claim 1, it is characterised in that when the quantity of the targeted sites pair
For two when, the control node, to sending channel measurement frame, and is received described at least two targeted sites
At least two targeted sites centerings are each stood to a directional channel quality measurement reports sent, and according to
The directional channel quality measurement reports judge that can at least two targeted sites be shared to carry out space
Including：
The control node to first object website pair and the second targeted sites to sending the first channel measurement frame,
The first channel measurement frame is used to indicate the first object website to being communicated and second target
Website is to being oriented channel quality measurement；
The control node receives first directional channel mass measurement report of second targeted sites to transmission
Accuse, the described in when the first directional channel quality measurement reports include the first object website to communication
First signal to noise ratio of two targeted sites to measurement；
The control node judges whether first signal to noise ratio is less than preset value；
When first signal to noise ratio is less than preset value, the control node is to the first object website pair
It is used to indicate to sending second channel measurement frame, the second channel measurement frame with second targeted sites
Second targeted sites are to being communicated and the first object website is to being oriented channel quality measurement；
The control node receives second directional channel mass measurement report of the first object website to transmission
Accuse, the described in when the second directional channel quality measurement reports include second targeted sites to communication
Second signal to noise ratio of one targeted sites to measurement；
The control node judges whether second signal to noise ratio is less than the preset value；
When second signal to noise ratio is less than the preset value, determine described two targeted sites to that can carry out
Share in space.
3. according to the method described in claim 1, it is characterised in that at least two targeted sites pair
In each website each website is included to the directional channel quality measurement reports of transmission communication is taken
Between；
The control node judges whether current DTI has enough time so that at least two targeted sites
Include to carrying out communication：
The control node judges whether current DTI remaining times are more than or equal to each website to logical
Maximum duration in the time required to letter, when the remaining time being more than or equal to the maximum duration, really
The fixed current DTI has enough time so that at least two targeted sites to communicating.
4. according to the method described in claim 1, it is characterised in that methods described also includes：
When the current DTI makes at least two targeted sites to communicating without time enough,
The control node beacon frame information interval BTI, notification frame send interval ATI or DTI to it is described extremely
Few two each websites of targeted sites centering include described at least two to sending management frame, the management frame
Targeted sites are to the destination channel resource communicated, and the management frame is for indicating at least two mesh
Labeling station point next DTI using the destination channel resource being communicated simultaneously.
5. the method according to claim any one of 1-4, it is characterised in that the control node to
Before at least two targeted sites are to transmission channel measurement frame, methods described also includes：
The control node receives the channel resource that at least two websites are sent at least three website please
Ask, the channel resources request that each website is sent at least two website is carried and each station
The information of another website of communication needed for point；
The control node chooses at least two targeted sites according to preset rules from least two website centerings
It is right, and to each website of at least two targeted sites centering to sending directional channel quality measurement request,
The directional channel quality measurement request is used to indicate each website root of at least two targeted sites centering
Judge whether to need to be oriented mass measurement, described at least two according to the status information of each website
Website to be at least two website each website and communicate with needed for each website it is another
The website pair that website is constituted；
Quality is oriented when receiving the need for each website of at least two targeted sites centering is sent
During metrical information, the control node perform it is described at least two targeted sites to sending channel measurement frame.
6. a kind of control node, it is characterised in that the control node manages at least three websites, including：
First judging unit, for, to sending channel measurement frame, and receiving institute at least two targeted sites
At least two each websites of targeted sites centering are stated to the directional channel quality measurement reports of transmission, Yi Jigen
Judge that can at least two targeted sites be total to carry out space according to the directional channel quality measurement reports
Enjoy, the channel measurement frame is used to indicate that at least two targeted sites are surveyed to being oriented channel quality
Amount, the channel measurement frame includes directional channel quality measurement information, the orientation quality measurement information bag
The each website of at least two targeted sites centering is included to the channel resource for directional channel mass measurement；
Second judging unit, for when the judged result of first judging unit is is, judging current
Whether data transfer interval DTI has enough time so that at least two targeted sites to communicating；
Communication unit, for when the judged result of second judging unit is is, to described at least two
The individual each website of targeted sites centering to sending Communications Authorization frame, the Communications Authorization frame include it is described at least
Two targeted sites to the destination channel resource that is communicated, the Communications Authorization frame be used to indicating it is described extremely
Few two targeted sites the current DTI using the destination channel resource being communicated simultaneously.
7. control node according to claim 6, it is characterised in that when the targeted sites pair
When quantity is two, first judging unit includes：
Communicate subelement, for being surveyed to first object website pair and the second targeted sites to sending the first channel
Measure frame, the first channel measurement frame is used to indicating the first object website to being communicated and described the
Two targeted sites are to being oriented channel quality measurement；
The communication subelement, is additionally operable to receive first directional channel of second targeted sites to transmission
Quality measurement reports, the first directional channel quality measurement reports include the first object website to logical
First signal to noise ratio of second targeted sites described in during letter to measurement；
First judgment sub-unit, for judging whether the first signal to noise ratio that the communication subelement is received is less than
Preset value；
The communication subelement, is additionally operable to when the judged result of first judgment sub-unit is is, to
The first object website pair and second targeted sites are to sending second channel measurement frame, described second
Channel measurement frame is used to indicate second targeted sites to being communicated and the first object website is to entering
Row directional channel mass measurement；
The communication subelement, is additionally operable to receive second directional channel of the first object website to transmission
Quality measurement reports, the second directional channel quality measurement reports include second targeted sites to logical
Second signal to noise ratio of the first object website to measurement during letter；
Second judgment sub-unit, for judging whether the second signal to noise ratio that the communication subelement is received is less than
The preset value, when the judged result of second judgment sub-unit is is, determines described two targets
Website is shared to that can carry out space.
8. control node according to claim 6, it is characterised in that at least two Target Station
The point each website of centering includes each website to the directional channel quality measurement reports of transmission to communication institute
Take time；
Second judging unit, specifically for judging whether current DTI remaining times are more than or equal to institute
Maximum duration in the time required to each website is stated to communication, when the remaining time is more than or equal to described
During maximum duration, determine that the current DTI has enough time so that at least two targeted sites to entering
Row communication.
9. control node according to claim 1, it is characterised in that the communication unit, is also used
In when the current DTI makes at least two targeted sites to communicating without time enough,
Beacon frame information interval BTI, notification frame send interval ATI or DTI at least two targeted sites
The each website of centering includes at least two targeted sites to carrying out to sending management frame, the management frame
The destination channel resource of communication, the management frame is used to indicate at least two targeted sites to next
Communicated simultaneously using the destination channel resource between individual DTI.
10. the control node according to claim any one of 6-9, it is characterised in that the communication unit
Member, is additionally operable to before at least two targeted sites to transmission channel measurement frame, at least three described in reception
Each website in the channel resources request that at least two websites are sent in individual website, at least two website
The channel resources request of transmission carries the information of another website communicated with needed for each website；
The control node also includes：
Unit is chosen, for choosing at least two Target Stations from least two website centerings according to preset rules
Point pair, at least two website to be at least two website each website and with it is described each
The website pair that another website of communication needed for website is constituted；
The communication unit, is additionally operable to every at least two targeted sites centerings of the selection unit selection
Individual website is to sending directional channel quality measurement request, when receiving at least two targeted sites centering
When each website is oriented quality measurement information the need for sending, perform described at least two Target Stations
Point is used to indicate at least two mesh to sending channel measurement frame, the directional channel quality measurement request
The labeling station each website of point centering judges whether to need to be oriented matter according to the status information of each website
Measurement.
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