CN109257074A - Cooperation transmission method between basic service set in a kind of super-intensive network - Google Patents
Cooperation transmission method between basic service set in a kind of super-intensive network Download PDFInfo
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- CN109257074A CN109257074A CN201811089368.4A CN201811089368A CN109257074A CN 109257074 A CN109257074 A CN 109257074A CN 201811089368 A CN201811089368 A CN 201811089368A CN 109257074 A CN109257074 A CN 109257074A
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- website
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- base station
- services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
Abstract
The present invention provides in a kind of super-intensive network cooperation transmission method between basic service set, first service collection, second service collection and third services set are included at least in the super-intensive network, two websites are included at least between two neighboring services set, and a website is included at least between adjacent three services sets, each services set includes at least a base station, cooperation transmission method includes: the frame structure of the website between modification adjacent three services sets between basic service set in super-intensive network, and is identified in the bit of the frame structure；If the website identified between adjacent three services sets has transmittability at least one when being revised as " 1 " in the bit；If in the bit be " 0 ", the website identified between adjacent three services sets reduces inter-user interference in OBSS website in the case where changing original mac frame structure without transmittability, improves the throughput of system of WLAN.
Description
Technical field
The present invention relates to fields of communication technology, more particularly to cooperation transmission between basic service set in a kind of super-intensive network
Method.
Background technique
In Wireless LAN, base station is otherwise known as access website (AP, access point), due to the introducing of multi-user
So that many problems are following.Several scenes enumerated as follows illustrate current WLAN institute's band after multiple access
The problem come.
In a wlan, AP and multiple non-access point website (non-AP STA, non-AP associated with the AP
Station a basic service set (BSS, Basic Service Set)) is constituted.In application environment, multiple BSS are being covered
It is very universal to occur overlapping situation on region, so that Overlay Service collection (OBSS, Overlapping BSS) is formed, ultra dense
In collection network (in the network that there are multiple OBSS), multiple cells are dispersed with, a known users will be with many cell poles
To be close, and each base station distance is close, and uses identical frequency spectrum resource, and very big do is likely to result between each cell
It disturbs.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide take substantially in a kind of super-intensive network
Cooperation transmission method between business collection, for solving the problems, such as that data are interfered between basic service set in super-intensive network in the prior art.
The present invention provides in a kind of super-intensive network cooperation transmission method between basic service set, in the super-intensive network extremely
Less include first service collection, second service collection and third services set, two websites are included at least between two neighboring services set, and
A website is included at least between adjacent three services sets, each services set includes at least a base station, base in super-intensive network
Cooperation transmission method includes: the frame structure of the website between modification adjacent three services sets between this services set, and described
The bit of frame structure is identified；If identifying adjacent three clothes at least one when being revised as " 1 " in the bit
Website between business collection has transmittability；If in the bit be " 0 ", identify adjacent three services sets it
Between website do not have transmittability.
Optionally, defining the website for including between the first service collection and the second service collection is the first website and the
Two websites, defining the website for including between the second service collection and the third services set is first website and the 4th station
Point, the website for including between the third services set and the first service collection be first website and the 6th website, it is described
First service collection further includes first base station and third website, and the second service collection further includes the second base station and the 5th website, and
Three services sets further include third base station and the 7th website, and cooperation transmission method also wraps between basic service set in the super-intensive network
Include: the first base station is to first website, second website and the third station transmission signal, second base station
To first website, the 4th website and the 5th station transmission signal, the third base station is to the first website, described
6th website and the 7th station transmission signal.
Optionally, cooperation transmission method includes: described in first website receives between basic service set in super-intensive network
First base station, second base station and the third base station signal and carry out broadcast transmission.
Optionally, the first base station, second base station and the third identification of base stations are less than first website
When broadcast, then abandon transmitting.
Optionally, the broadcast of the first website described in the first base station, second base station and the third identification of base stations
When, then it is transmitted.
Optionally, cooperation transmission method uses IEEE 802.11ac agreement between basic service set in the super-intensive network.
Optionally, the frame structure is VHT Capabilities Info frame structure.
Optionally, the bit is B30 to B31 bit.
As described above, cooperation transmission method between basic service set in super-intensive network of the invention, has below beneficial to effect
Fruit: in the case where changing original mac frame structure, inter-user interference in OBSS website is reduced, the system for improving WLAN gulps down
The amount of spitting.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of basic service set in super-intensive network in the embodiment of the present invention.
Fig. 2 is shown as the structural schematic diagram of frame structure in the embodiment of the present invention.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Fig. 1 is please referred to Fig. 2.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its
Assembly layout kenel may also be increasingly complex.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
Art content obtains in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Please referring to Fig. 1 and Fig. 2, the present invention provides in a kind of super-intensive network cooperation transmission method between different services sets,
There is access website AP (base station) in multiple basic service set (BSS, Basic Service Set) systems with infrastructure,
Access website AP contains whether instruction OBSS Overlay Service collection (OBSS, Overlapping BSS) website there are different BSS to cooperate
The information of transmittability, the information can embody in the beacon frame in association, please refer to figure Fig. 1, define the first service
The website for including between the collection BSS1 and second service collection BSS2 is the first website STA1 and the second website STA2, described in definition
The website for including between second service collection BSS2 and the third services set BSS3 is the first website STA1 and the 4th website
The website for including between STA4, the third services set BSS3 and the first service collection BSS1 be the first website STA1 and
6th site STA 6, the first service collection BSS1 further include first base station AP1 and third site STA 3, the second service collection
BSS2 further includes the second base station AP2 and the 5th site STA 5, and third services set BSS3 further includes third base station AP3 and the 7th website
The AP3 in the AP2 and BSS3 in AP1, BSS2 in STA7, BSS1 carries out the specific method of cooperation transmission by OBSS website:
(1) AP1, AP2 and AP3 first have to choose in the region OBSS in the website conduct with cooperation transmission ability
After user, as shown in fig. 1, STA1, be in " VHT Capabilities Info " frame as the trunk subscriber in OBSS scene
Be identified in structure, i.e. the bit of B30-B31 in Fig. 2 be it is not used, wherein 1 in the bit of B30-B31
It is revised as " 1 " and then identifies the website with cooperation transmission ability between more BSS association and difference BSS, so that communication process can be realized；
It indicates that website belongs to conventional station when B30-B31 bit is all zero, does not have cooperation transmission ability, the present invention can not be carried out
Communication process, AP periodic broadcasting " beacon " frame in basic BSS, " beacon " period defines target beacon transmission times
The fixed time table of (Target Beacon Transmission Time, TBTT), under the premise of the media free time, " beacon "
Frame itself is then sent at TBTT moment or as close as possible to TBTT at the time of." beacon " frame with control information, ability information with
And for managing the information of BSS, VHT competence element is present in that " beacon " transmitted by VHT AP or VHT website, " association is asked
Ask ", " associated response ", " reassociation requests ", " re-association response ", " probe request " and " sound out corresponding " management frame it is medium.
VHT competence element includes the field for being used to declare VHT website or the optional ability of VHT AP, and VHT competence element is believed comprising ability
Bit is ceased, field length has 32bit, and there are enough reserved bits.And B30-B31 therein is reserved place, is had not been used, it can
To increase optional ability.
(2) first time slots: AP1 STA2 into OBSS site STA 1 and BSS1 and STA3 send signal, meanwhile, AP2 to
OBSS site STA 1 and STA4 in BSS2 and STA5 send signal, STA6 of the AP3 into OBSS site STA 1 and BSS2 and
STA7 sends signal；
(3) second time slots: the signal of AP1, AP2 and AP3 for receiving in 1 first time slot of OBSS site STA carry out at cooperation
Broadcast transmission is carried out after reason.
When access website AP identification is less than having the stations with more associations and cooperation transmission ability between difference BSS in OBSS
Point is then abandoned carrying out the cooperation transmission between different BSS.
When OBSS exists with the website of cooperation transmission ability between more associations and difference BSS, access website AP is not by
With selection criterion carry out the selection of website, determine the collaboration communication realized after OBSS website again between different BSS.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (8)
1. cooperation transmission method between basic service set in a kind of super-intensive network, which is characterized in that in the super-intensive network extremely
Less include first service collection, second service collection and third services set, two websites are included at least between two neighboring services set, and
A website is included at least between adjacent three services sets, each services set includes at least a base station, base in super-intensive network
Cooperation transmission method includes: between this services set
The frame structure of the website between adjacent three services sets is modified, and is identified in the bit of the frame structure；
If the website identified between adjacent three services sets has at least one when being revised as " 1 " in the bit
Transmittability；
If in the bit be " 0 ", the website identified between adjacent three services sets does not have transmittability.
2. cooperation transmission method between basic service set in super-intensive network according to claim 1, which is characterized in that definition
The website for including between the first service collection and the second service collection is the first website and the second website, defines described second
The website for including between services set and the third services set be first website and the 4th website, the third services set with
The website for including between the first service collection is first website and the 6th website, and the first service collection further includes first
Base station and third website, the second service collection further include the second base station and the 5th website, and third services set further includes third base
It stands and the 7th website, cooperation transmission method between basic service set in the super-intensive network further include: the first base station is to institute
State the first website, second website and the third station transmission signal, second base station is to first website, described
4th website and the 5th station transmission signal, the third base station is to the first website, the 6th website and the described 7th
Station transmission signal.
3. cooperation transmission method between basic service set in super-intensive network according to claim 2, which is characterized in that ultra dense
Cooperation transmission method includes: that first website receives the first base station, second base between basic service set in collection network
It stands and the signal of the third base station and carries out broadcast transmission.
4. cooperation transmission method between basic service set in super-intensive network according to claim 3, which is characterized in that described
First base station, second base station and the third identification of base stations less than first website broadcast when, then abandon transmitting.
5. cooperation transmission method between basic service set in super-intensive network according to claim 3, which is characterized in that described
When the broadcast of the first website described in first base station, second base station and the third identification of base stations, then transmitted.
6. cooperation transmission method between basic service set in super-intensive network according to claim 1, which is characterized in that described
Cooperation transmission method uses IEEE 802.11ac agreement between basic service set in super-intensive network.
7. cooperation transmission method between basic service set in super-intensive network according to claim 1, which is characterized in that described
Frame structure is VHT Capabilities Info frame structure.
8. cooperation transmission method between basic service set in super-intensive network according to claim 7, which is characterized in that described
Bit is B30 to B31 bit.
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| CN201811089368.4A CN109257074A (en) | 2018-09-18 | 2018-09-18 | Cooperation transmission method between basic service set in a kind of super-intensive network |
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| CN201811089368.4A CN109257074A (en) | 2018-09-18 | 2018-09-18 | Cooperation transmission method between basic service set in a kind of super-intensive network |
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| US20150288428A1 (en) * | 2014-04-08 | 2015-10-08 | Electronics And Telecommunications Research Institute | Protocol for cooperation communication between access points in overlapped basic service set (obss) environment |
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| WO2017133416A1 (en) * | 2016-02-04 | 2017-08-10 | 中兴通讯股份有限公司 | Method and device for coordinated transmission in wireless local area network |
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