CN105744603B - A kind of multiple users wireless local area network access method and access point AP - Google Patents
A kind of multiple users wireless local area network access method and access point AP Download PDFInfo
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- CN105744603B CN105744603B CN201610264111.2A CN201610264111A CN105744603B CN 105744603 B CN105744603 B CN 105744603B CN 201610264111 A CN201610264111 A CN 201610264111A CN 105744603 B CN105744603 B CN 105744603B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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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
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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Abstract
The embodiment of the present invention provides a kind of multiple users wireless local area network access method, comprising the following steps: makes multiple wireless chips worked on same channel while entering transmission state；Identify the multiple type for working in frame to be sent in the wireless chip on same channel；When the type of the frame to be sent is management frame, the transmission timing of the multiple wireless chip is determined, set transmission state for N number of switch, and the management frame is sent via N number of combiner according to the transmission timing；When the type of the frame to be sent is data frame, make it is the multiple work in the wireless chip on same channel on the same channel while sending the data frame give each wireless chip corresponding single-antenna user terminal.Correspondingly, the embodiment of the present invention also provides a kind of multiple users wireless local network connecting point AP, the spectrum efficiency of each channel and the rate of AP in AP are improved through the above scheme.
Description
Technical field
The present invention relates to network communication fields, more particularly, to a kind of multiple users wireless local area network access method and connect
Access point AP.
Background technique
Current wireless access point AP is largely dual-frequency point AP, and each AP occupies 1 2.4G WLAN WLAN letter
Road and a 5G WLAN channel.Since each network interface card can only service a user terminal at the same moment, so each channel
A user terminal can only at most be serviced simultaneously at present.
Simultaneously as the development of chip technology now, AP largely support mutiple antennas number, a plurality of spatial data is simultaneously
It sends, but since the volume of user terminal is limited, most of user terminal is single antenna, only supports a spatial data.
It causes AP on each channel, is all that a spatial data is being transmitted when most of, this seriously constrains wireless local area
The spectrum efficiency of net.
In order to improve spectrum efficiency, AP needs on one channel, while servicing multiple user terminals.It is wherein newest
Wlan standard 802.11ac wave2, which supports to carve at the same time, supports multiple user terminals, while this standard requirements user terminal
It supports corresponding agreement, the terminal of early support 802.11n agreement is not supported.But 802.11n agreement is supported at present
User terminal still occupies major portion, and the following also necessarily scene of multiple types of users terminal coexistence, so using general
Wireless chip, such as 802.11n protocol chip, on one channel, while the AP for servicing multiple user terminals can be for design
The spectrum efficiency of WLAN is improved under more scenes.
Multiple 802.11n agreement single-antenna user terminal main methods are serviced simultaneously in a channel at present are as follows: are collected in AP
At multiple cochannel wireless chips, by taking a backup to adjust and receive by phase amplitude the signal for interfering wireless chip
To interference signal subtracted each other, to get rid of interference signal.This method can only eliminate the downlink of a wireless chip
Signal is to the uplink interference of other wireless chips, and when downlink services multiple single-antenna user terminals simultaneously, each single antenna is used
The interference of family terminal received is still very big, without any change.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the present invention adopts the following technical scheme that
A kind of multiple users wireless local area network access method, applied to integrate it is multiple work in it is wireless on same channel
In the wireless access point AP of chip, each wireless chip is associated with a single-antenna user terminal, is had N number of transmitting terminal and N number of is connect
Receiving end, N number of transmitting terminal connect one to one N number of combiner respectively, and N number of receiving end connects one to one N number of respectively
Power splitter, N number of combiner and N number of power splitter connect one to one N number of switch jointly, and N number of switch one is a pair of
N number of antenna should be connected, N number of antenna is correspondingly connected with the single-antenna user terminal, and the N is natural number, including following
Step:
Make the multiple wireless chip worked on same channel while entering transmission state；
Identify the multiple type for working in frame to be sent in the wireless chip on same channel；
When the type of the frame to be sent is management frame, the transmission timing of the multiple wireless chip is determined, by the N
A switch is set as transmission state, and sends the management frame via N number of combiner according to the transmission timing；
When the type of the frame to be sent is data frame, the multiple wireless chip worked on same channel is made to exist
Sending the data frame on the same channel simultaneously gives each wireless chip corresponding single-antenna user terminal.
Optionally, described when the type of the frame to be sent is management frame, determine the transmission of the multiple wireless chip
N number of switch is set transmission state by timing, and according to the transmission timing via described in N number of combiner transmission
The step of management frame, specifically includes:
It is if the type of frame to be sent is the beacon frame in management frame, each wireless chip transmission timing is wrong
It opens, sets transmission state for N number of switch, and via N number of combiner, according to the transmission timing after described be staggered,
The beacon frame is sent in turn according to the beacon period.
Optionally, described when the type of the frame to be sent is management frame, determine the transmission of the multiple wireless chip
N number of switch is set transmission state by timing, and according to the transmission timing via described in N number of combiner transmission
The step of management frame, specifically includes:
If the type of frame to be sent be management frame in uni-cast probe acknowledgement frame, make it is the multiple work in it is identical
Wireless chip corresponding with the uni-cast probe acknowledgement frame monopolizes transmission timing in wireless chip on channel, according to the transmission
N number of switch is set transmission state by timing, and sends the uni-cast probe acknowledgement frame via N number of combiner, makes
Other wireless chips keep silent；
If the type of frame to be sent is the broadcast acknowledgement frame in management frame, make to work in same channel the multiple
On wireless chip in one wireless chip of random selection monopolize transmission timing, according to the transmission timing by N number of switch
It is set as transmission state, and sends the broadcast acknowledgement frame via N number of combiner, other wireless chips is made to keep silent.
Optionally, when the type of the frame to be sent is data frame, make the multiple nothing worked on same channel
It is whole to the corresponding single-antenna subscriber of each wireless chip that core piece sends the data frame simultaneously on the same channel
The step of end, specifically includes:
When the type of the frame to be sent is data frame, to each wireless chip and the corresponding Dan Tian
Channel vector between line user terminal is estimated, calculates each wireless chip according to the channel vector and is sending number
Transmission beam forming vector when according to frame, makes the multiple wireless chip worked on same channel according to institute corresponding with itself
It states and sends beam forming vector on the same channel while to send the data frame corresponding to each wireless chip
Single-antenna user terminal.
Optionally, the channel between each wireless chip and the corresponding single-antenna user terminal
Vector is estimated, calculates transmission beam forming of each wireless chip when sending data frame according to the channel vector
The step of vector, specifically includes:
It obtains and the multiple works in each wireless chip and corresponding Dan Tian in the wireless chip on same channel
N number of initial beam between line user terminal forms vector；
Vector, which is formed, according to the initial beam calculates each wireless chip and corresponding single-antenna subscriber end
N number of channel vector at end；
By it is the multiple work in the wireless chip on same channel the first wireless chip and in addition to first nothing
The channel vector between the corresponding N-1 single-antenna user terminal of other wireless chips other than core piece is respectively equivalent to
Described other wireless chips other than first wireless chip N-1 single-antenna user terminal corresponding with its it
Between channel vector；
When the interference that the N-1 single-antenna user terminal receives is zero, according to first wireless chip and with remove
Channel arrow between other wireless chips corresponding N-1 single-antenna user terminal other than first wireless chip
Amount calculates transmission beam forming vector of first wireless chip when sending data frame；
According to method identical with transmission beam forming vector of first wireless chip when sending data frame is calculated
Calculate transmission beam forming arrow of described other wireless chips other than first wireless chip when sending data frame
Amount.
The another aspect of the embodiment of the present invention provides a kind of multiple users wireless local network connecting point AP, includes:
Multiple wireless chips worked on same channel, each wireless chip are associated with a single-antenna user terminal,
There are a N number of transmitting terminal and N number of receiving end, N number of transmitting terminal connects one to one N number of combiner respectively, N number of receiving end point
Do not connect one to one N number of power splitter, and N number of combiner and N number of power splitter connect one to one N number of switch jointly,
N number of switch connects one to one N number of antenna, and N number of antenna is correspondingly connected with the single-antenna user terminal, the N
For natural number,
State setting module sends shape for making the multiple wireless chip worked on same channel while entering
State；
Type identification module, for identification the multiple class for working in frame to be sent in the wireless chip on same channel
Type；
First frame processing module, for determining the multiple no core when the type of the frame to be sent is management frame
N number of switch is set transmission state by the transmission timing of piece, and according to the transmission timing via N number of combiner
Send the management frame；
Second frame processing module, for making the multiple to work in phase when the type of the frame to be sent is data frame
It is corresponding to each wireless chip that wireless chip on cochannel sends the data frame simultaneously on the same channel
Single-antenna user terminal.
Optionally,
The first frame processing module, if the type specifically for frame to be sent is the beacon frame in management frame,
Each wireless chip transmission timing is staggered, sets transmission state for N number of switch, and via N number of combining
Device sends the beacon frame according to the beacon period according to the transmission timing after described be staggered in turn.
Optionally,
The first frame processing module, if the type specifically for frame to be sent is the uni-cast probe response in management frame
Frame then makes to work in no core corresponding with the uni-cast probe acknowledgement frame in the wireless chip on same channel the multiple
Piece monopolizes transmission timing, sets transmission state for N number of switch according to the transmission timing, and via N number of combining
Device sends the uni-cast probe acknowledgement frame, and other wireless chips is made to keep silent；
If the type of frame to be sent is the broadcast acknowledgement frame in management frame, make to work in same channel the multiple
On wireless chip in one wireless chip of random selection monopolize transmission timing, according to the transmission timing by N number of switch
It is set as transmission state, and sends the broadcast acknowledgement frame via N number of combiner, other wireless chips is made to keep silent.
Optionally,
The second frame processing module, specifically for when the type of the frame to be sent is data frame, to described each
Channel vector between wireless chip and the corresponding single-antenna user terminal is estimated, according to the channel vector
Transmission beam forming vector of each wireless chip when sending data frame is calculated, makes the multiple to work in same channel
On wireless chip the number is sent according to the transmission beam forming vector corresponding with itself simultaneously on the same channel
Give each wireless chip corresponding single-antenna user terminal according to frame.
Optionally,
The second frame processing module is specifically used for, and when the type of the frame to be sent is data frame, obtains described more
It is a work in it is N number of between each wireless chip and corresponding single-antenna user terminal in the wireless chip on same channel
Initial beam forms vector；
Vector, which is formed, according to the initial beam calculates each wireless chip and corresponding single-antenna subscriber end
N number of channel vector at end；
By it is the multiple work in the wireless chip on same channel the first wireless chip and in addition to first nothing
The channel vector between the corresponding N-1 user terminal of other wireless chips other than core piece is respectively equivalent to described remove
The letter between other wireless chips and its corresponding N-1 single-antenna user terminal other than first wireless chip
Road vector；
When the interference that the N-1 single-antenna user terminal receives is zero, according to first wireless chip and with remove
The channel vector between other wireless chips corresponding N-1 user terminal other than first wireless chip calculates
Transmission beam forming vector of first wireless chip when sending data frame；
According to method identical with transmission beam forming vector of first wireless chip when sending data frame is calculated
Calculate transmission beam forming arrow of described other wireless chips other than first wireless chip when sending data frame
Amount；
Swear the multiple wireless chip worked on same channel according to the transmission beam forming corresponding with itself
Amount sends the data frame simultaneously on the same channel and gives each wireless chip corresponding single-antenna user terminal.
This patent embodiment in view of the above problems, proposes a kind of new multiple users WLAN access
Method, applied to integrating in multiple wireless access point APs for working in the wireless chip on same channel, each wireless chip with
The association of one single-antenna user terminal, there is a N number of transmitting terminal and N number of receiving end, and N number of transmitting terminal connects one to one N respectively
A combiner, N number of receiving end connect one to one N number of power splitter, N number of combiner and N number of power splitter respectively
Connect one to one N number of switch jointly, and N number of switch connects one to one N number of antenna, N number of antenna and the Dan Tian
Line user terminal is correspondingly connected with, and the N is natural number, comprising the following steps: makes the multiple nothing worked on same channel
Core piece enters transmission state simultaneously；Identify the multiple class for working in frame to be sent in the wireless chip on same channel
Type；When the type of the frame to be sent is management frame, the transmission timing of the multiple wireless chip is determined, N number of open described
Pass is set as transmission state, and sends the management frame via N number of combiner according to the transmission timing；When described pending
When the type of frame being sent to be data frame, make the multiple to work in the wireless chip on same channel on the same channel simultaneously
Sending the data frame gives each wireless chip corresponding single-antenna user terminal.Correspondingly, the embodiment of the present invention also mentions
A kind of multiple users wireless local network connecting point AP is supplied.The spectrum efficiency of each channel in AP is improved through the above scheme
And the rate of AP.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of system structure diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of method flow diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of method flow diagram provided in an embodiment of the present invention；
Fig. 4 is a kind of structure drawing of device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
One embodiment of the invention provides a kind of multiple users wireless local area network access method, applied to as shown in Figure 1
It integrates in multiple wireless access point APs for working in the wireless chip on same channel, each wireless chip, as shown in figure 1 wireless
Chip 1 and wireless chip 2 are associated with a single-antenna user terminal (not showing in Fig. 1), there is N number of transmitting terminal and N number of reception
End, N number of transmitting terminal connect one to one N number of combiner respectively, combiner 1 and combiner 2 as shown in figure 1, described N number of to connect
Receiving end connects one to one N number of power splitter, power splitter 1 and power splitter 2 as shown in figure 1, N number of combiner and the N respectively
A power splitter connects one to one N number of switch jointly, switch 1 and switch 2 as shown in figure 1, and N number of switch connects one to one
N number of antenna, antenna 1 and antenna 2 as shown in figure 1, N number of antenna are correspondingly connected with the single-antenna user terminal, and the N is
Natural number includes the following steps, as shown in Figure 2:
S101 makes the multiple wireless chip worked on same channel while entering transmission state；
S103 identifies the multiple type for working in frame to be sent in the wireless chip on same channel；
S105 determines the transmission timing of the multiple wireless chip when the type of the frame to be sent is management frame, will
N number of switch is set as transmission state, and sends the management frame via N number of combiner according to the transmission timing；
S107, when the type of the frame to be sent be data frame when, make it is the multiple work in it is wireless on same channel
Chip sends the data frame simultaneously on the same channel and gives each wireless chip corresponding single-antenna user terminal.
In the system shown in figure 1, realize that multiple wireless chips worked on same channel pass through combiner, power splitter
With switch community antenna system, thus the channel arrow of each wireless chip not only available user terminal associated by itself
It measures, also channel vector of the available user terminal being associated under other wireless chips relative to this chip.Nothing in such as figure
Channel vector of the available user terminal being associated under wireless chip 2 of core piece 1 relative to wireless chip 1.
Optionally, step S105 is specifically included:
It is if the type of frame to be sent is the beacon frame in management frame, each wireless chip transmission timing is wrong
It opens, sets transmission state for N number of switch, and via N number of combiner, according to the transmission timing after described be staggered,
The beacon frame is sent in turn according to the beacon period.
Optionally, step S105 is specifically included:
If the type of frame to be sent be management frame in uni-cast probe acknowledgement frame, make it is the multiple work in it is identical
Wireless chip corresponding with the uni-cast probe acknowledgement frame monopolizes transmission timing in wireless chip on channel, according to the transmission
N number of switch is set transmission state by timing, and sends the uni-cast probe acknowledgement frame via N number of combiner, makes
Other wireless chips keep silent；
If the type of frame to be sent is the broadcast acknowledgement frame in management frame, make to work in same channel the multiple
On wireless chip in one wireless chip of random selection monopolize transmission timing, according to the transmission timing by N number of switch
It is set as transmission state, and sends the broadcast acknowledgement frame via N number of combiner, other wireless chips is made to keep silent.
Optionally, step S107 is specifically included:
When the type of the frame to be sent is data frame, to each wireless chip and the corresponding Dan Tian
Channel vector between line user terminal is estimated, calculates each wireless chip according to the channel vector and is sending number
Transmission beam forming vector when according to frame, makes the multiple wireless chip worked on same channel according to institute corresponding with itself
It states and sends beam forming vector on the same channel while to send the data frame corresponding to each wireless chip
Single-antenna user terminal.In this way, the signal that each single-antenna user terminal only receives associated wireless chip is realized, and its
The interference signal of remaining wireless chip is all got rid of.
Optionally, as shown in figure 3, it is described to each wireless chip and the corresponding single-antenna user terminal
Between channel vector estimated, hair of each wireless chip when sending data frame is calculated according to the channel vector
The step of sending beam forming vector specifically includes:
S201 obtains the multiple each wireless chip and corresponding of working in the wireless chip on same channel
N number of initial beam between single-antenna user terminal forms vector；
Optionally, pass through TxBF method in 802.11 agreements, the corresponding single antenna of available each wireless chip
Initial beam between user terminal forms vector V1,V2,...,VN, the quantity of single-antenna user terminal is N, then initial beam
The quantity for forming vector is also N, and N is natural number,
It will be understood by those skilled in the art that the method for obtaining initial beam molding vector is not limited to the side in the embodiment
Method, other obtain the method for initial beams molding vectors also within protection scope of the present invention.
S203 forms vector according to the initial beam and calculates each wireless chip and corresponding single antenna use
N number of channel vector of family terminal；
Optionally, it is assumed that k-th of wireless chip in multiple wireless chips gives its corresponding k-th of user terminal and send
Channel vector H when data, between themkkIt can be indicated with the matrix disassembling method of standard, for example, SVD (singular value decomposition
Singular Value Decomposition) method indicate channel vector are as follows: Hkk=U Σ (Vk)T,
Wherein, U is the left unitary matrix in expression formula, and ∑ is the diagonal matrix of expression formula, VkFor the right unitary matrix of expression formula, T is represented
Transposition, k-th of initial beam form vector VkIt can indicate are as follows:Matrix on the right of equation is NxN
Matrix, in matrix, the superscript of V indicates k-th of user terminal, the column of the subscript representing matrix of V, the quantity N of user terminal
It is exactly columns.
It similarly, is the channel vector calculated except k-th of wireless chip gives its corresponding k-th of user terminal to send data
It is that the channel vector calculated can also be by above-mentioned side that other wireless chips in addition, which give its corresponding user terminal and send data,
Method is indicated.
S205, by it is the multiple work in the wireless chip on same channel the first wireless chip and in addition to described
The channel vector between the corresponding N-1 single-antenna user terminal of other wireless chips other than one wireless chip is respectively etc.
It is whole to be same as described other wireless chips other than first wireless chip N-1 single-antenna subscriber corresponding with its
Channel vector between end；
Wherein, equivalent principle is, as shown in Figure 1, using wave in k-th of wireless chip due to being community antenna system
When beam forming vector sends data to k-th of user terminal, other user terminals, such as m-th of user terminal, it receives k-th
The interference of wireless chip, then k-th of wireless chip and the channel vector being disturbed between user terminal m are equal to m-th wirelessly
Chip and with its associated by user terminal m between channel vector, and H can be expressed askm=Hmm=U Σ (Vm)T,
Wherein, HmmRepresentation and HkkRepresentation it is identical.
In this way, k-th of wireless chip and in addition to k-th corresponding of user terminal, i.e. other N-1 user terminal
Between channel vector can be indicated according to above-mentioned equivalent method.
S207, when the interference that the N-1 single-antenna user terminal receives is zero, according to first wireless chip and
Letter between N-1 single-antenna user terminal corresponding with other wireless chips other than first wireless chip
Road vector calculates transmission beam forming vector of first wireless chip when sending data frame；
In the present embodiment, if it is desired that when obtaining k-th of wireless chip to k-th of user terminal transmission data, to any
The interference of other user terminals is zero, then the final transmission beam forming vector of k-th of wireless chip need to meet it is following
Condition:
HkmQk=0
Namely:
Wherein, HkmK-th of wireless chip is represented to the channel vector between m-th of user terminal, QkIt is k-th without core
The final transmission beam forming vector of piece.HkmQk=0K-th of wireless chip is represented using beam forming vector Qk
When, the interference that arbitrarily other user terminals other than k-th of user terminal corresponding with k-th of wireless chip receive is zero.
K-th of wireless chip according to above equation group and | Qk|=1 can solve the final of k-th of wireless chip
Transmission beam forming vector Qk, because Equation group only has N-1 equation, so necessarily there is solution.Its
In, | Qk| the representative of=1 this equation is normalized beam forming vector so that transmitter general power is constant.
S209, according to identical with transmission beam forming vector of first wireless chip when sending data frame is calculated
Method calculate the transmission wave beam of other wireless chips when sending data frame other than first wireless chip at
Type vector.
Finally according to identical with transmission beam forming vector of first wireless chip when sending data frame is calculated
Method, each wireless chip solves corresponding final transmission beam forming vector Q, and carries out wave to the data that needs are sent
Beam forming is sent.
In the present embodiment, multiple wireless chips worked on same channel are according to the transmission wave beam corresponding with itself
It forms vector and sends the data frame simultaneously on the same channel and give each wireless chip corresponding single-antenna subscriber
Terminal.In this way, the signal that each single-antenna user terminal only receives associated wireless chip is realized, and remaining wireless chip
Interference signal all get rid of.
The spectrum efficiency of each channel and the rate of AP in AP are improved through the above scheme.
As shown in figure 4, including another embodiment of the present invention provides a kind of multiple users wireless local network connecting point AP:
Multiple wireless chips worked on same channel, each wireless chip are associated with a single-antenna user terminal,
There are a N number of transmitting terminal and N number of receiving end, N number of transmitting terminal connects one to one N number of combiner respectively, N number of receiving end point
Do not connect one to one N number of power splitter, and N number of combiner and N number of power splitter connect one to one N number of switch jointly,
N number of switch connects one to one N number of antenna, and N number of antenna is correspondingly connected with the single-antenna user terminal, the N
For natural number,
State setting module 301 is sent for making the multiple wireless chip worked on same channel while entering
State；
Type identification module 303, it is the multiple for identification to work in frame to be sent in the wireless chip on same channel
Type；
First frame processing module 305, it is the multiple wireless for determining when the type of the frame to be sent is management frame
N number of switch is set transmission state by the transmission timing of chip, and according to the transmission timing via N number of combining
Device sends the management frame；
Second frame processing module 307, for making the multiple work in when the type of the frame to be sent is data frame
It is corresponding to each wireless chip that wireless chip on same channel sends the data frame simultaneously on the same channel
Single-antenna user terminal.
Optionally,
The first frame processing module 305, if the type specifically for frame to be sent is the beacon frame in management frame,
Then each wireless chip transmission timing is staggered, sets transmission state for N number of switch, and via N number of conjunction
Road device sends the beacon frame according to the beacon period according to the transmission timing after described be staggered in turn.
Optionally,
The first frame processing module 305, if the type specifically for frame to be sent is the uni-cast probe in management frame
Acknowledgement frame then makes to work in nothing corresponding with the uni-cast probe acknowledgement frame in the wireless chip on same channel the multiple
Core piece monopolizes transmission timing, sets transmission state for N number of switch according to the transmission timing, and via described N number of
Combiner sends the uni-cast probe acknowledgement frame, and other wireless chips is made to keep silent；
If the type of frame to be sent is the broadcast acknowledgement frame in management frame, make to work in same channel the multiple
On wireless chip in one wireless chip of random selection monopolize transmission timing, according to the transmission timing by N number of switch
It is set as transmission state, and sends the broadcast acknowledgement frame via N number of combiner, other wireless chips is made to keep silent.
Optionally,
The second frame processing module 307, specifically for when the type of the frame to be sent is data frame, to described every
Channel vector between a wireless chip and the corresponding single-antenna user terminal is estimated, is sweared according to the channel
Amount calculates the transmission beam forming vector of each wireless chip when sending data frame, makes the multiple to work in identical letter
Described in wireless chip on road is sent on the same channel simultaneously according to the transmission beam forming vector corresponding with itself
Data frame gives each wireless chip corresponding single-antenna user terminal.
Optionally,
The second frame processing module 307, specifically for when the type of the frame to be sent is data frame, described in acquisition
Multiple N worked in the wireless chip on same channel between each wireless chip and corresponding single-antenna user terminal
A initial beam forms vector；
Vector, which is formed, according to the initial beam calculates each wireless chip and corresponding single-antenna subscriber end
N number of channel vector at end；
By it is the multiple work in the wireless chip on same channel the first wireless chip and in addition to first nothing
The channel vector between the corresponding N-1 user terminal of other wireless chips other than core piece is respectively equivalent to described remove
The letter between other wireless chips and its corresponding N-1 single-antenna user terminal other than first wireless chip
Road vector；
When the interference that the N-1 single-antenna user terminal receives is zero, according to first wireless chip and with remove
The channel vector between other wireless chips corresponding N-1 user terminal other than first wireless chip calculates
Transmission beam forming vector of first wireless chip when sending data frame；
According to method identical with transmission beam forming vector of first wireless chip when sending data frame is calculated
Calculate transmission beam forming arrow of described other wireless chips other than first wireless chip when sending data frame
Amount；
Swear the multiple wireless chip worked on same channel according to the transmission beam forming corresponding with itself
Amount sends the data frame simultaneously on the same channel and gives each wireless chip corresponding single-antenna user terminal.
The spectrum efficiency of each channel and the rate of AP in AP are improved through the above scheme.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of multiple users wireless local area network access method, which is characterized in that multiple work in identical letter applied to integrating
In the wireless access point AP of wireless chip on road, each wireless chip is associated with a single-antenna user terminal, there is N number of transmission
End and N number of receiving end, N number of transmitting terminal connect one to one N number of combiner respectively, and N number of receiving end difference one is a pair of
N number of power splitter should be connected, N number of combiner and N number of power splitter connect one to one N number of switch jointly, described N number of to open
Pass connects one to one N number of antenna, and N number of antenna is correspondingly connected with the single-antenna user terminal, comprising the following steps:
Make the multiple wireless chip worked on same channel while entering transmission state；
Identify the multiple type for working in frame to be sent in the wireless chip on same channel；
When the type of the frame to be sent is management frame, the multiple hair for working in the wireless chip on same channel is determined
Timing is sent, sets transmission state for N number of switch, and institute is sent via N number of combiner according to the transmission timing
State management frame；
When the type of the frame to be sent is data frame, make the multiple wireless chip worked on same channel described
Sending the data frame on same channel simultaneously gives each wireless chip corresponding single-antenna user terminal；
Wherein, the quantity of the wireless chip and the single-antenna user terminal is N, and N is the natural number greater than 1.
2. a kind of multiple users wireless local area network access method according to claim 1, which is characterized in that described to work as institute
When the type for stating frame to be sent is management frame, the multiple transmission timing for working in the wireless chip on same channel is determined,
Transmission state is set by N number of switch, and the management frame is sent via N number of combiner according to the transmission timing
The step of specifically include:
If the type of frame to be sent is the beacon frame in management frame, each wireless chip transmission timing is staggered,
Transmission state is set by N number of switch, and via N number of combiner, according to the transmission timing after described be staggered, according to
The beacon period sends the beacon frame in turn.
3. a kind of multiple users wireless local area network access method according to claim 1, which is characterized in that described to work as institute
When the type for stating frame to be sent is management frame, the multiple transmission timing for working in the wireless chip on same channel is determined,
Transmission state is set by N number of switch, and the management frame is sent via N number of combiner according to the transmission timing
The step of specifically include:
If the type of frame to be sent is the uni-cast probe acknowledgement frame in management frame, make to work in same channel the multiple
On wireless chip in wireless chip corresponding with the uni-cast probe acknowledgement frame monopolize transmission timing, according to the transmission timing
Transmission state is set by N number of switch, and sends the uni-cast probe acknowledgement frame via N number of combiner, is made other
Wireless chip keeps silent；
If the type of frame to be sent is the broadcast acknowledgement frame in management frame, make to work on same channel the multiple
A wireless chip is randomly choosed in wireless chip and monopolizes transmission timing, and N number of switch is arranged according to the transmission timing
To send state, and the broadcast acknowledgement frame is sent via N number of combiner, other wireless chips is made to keep silent.
4. a kind of multiple users wireless local area network access method according to claim 1, which is characterized in that when it is described to
When the type for sending frame is data frame, make that the multiple to work in the wireless chip on same channel same on the same channel
When the step of sending the data frame corresponding to each wireless chip single-antenna user terminal specifically include:
When the type of the frame to be sent is data frame, each wireless chip and the corresponding single antenna are used
Channel vector between the terminal of family is estimated, calculates each wireless chip according to the channel vector and is sending data frame
When transmission beam forming vector, make the multiple wireless chip worked on same channel according to corresponding with itself described
Beam forming vector is sent, the data frame is sent simultaneously on the same channel and gives each wireless chip corresponding list
Antenna user terminal.
5. a kind of multiple users wireless local area network access method according to claim 4, which is characterized in that described to institute
The channel vector stated between each wireless chip and the corresponding single-antenna user terminal is estimated, according to the letter
Road vector calculates the step of transmission beam forming vector of each wireless chip when sending data frame and specifically includes:
It obtains and the multiple work in each wireless chip and corresponding single antenna in the wireless chip on same channel and use
N number of initial beam between the terminal of family forms vector；
The N that vector calculates each wireless chip and corresponding single-antenna user terminal is formed according to the initial beam
A channel vector；
By it is the multiple work in the wireless chip on same channel the first wireless chip and in addition to described first without core
The channel vector between the corresponding N-1 single-antenna user terminal of other wireless chips other than piece is respectively equivalent to described
Between other wireless chips and its corresponding N-1 single-antenna user terminal other than first wireless chip
Channel vector；
When the interference that the N-1 single-antenna user terminal receives is zero, according to first wireless chip and in addition to institute
State the channel vector meter between the corresponding N-1 single-antenna user terminal of other wireless chips other than the first wireless chip
Calculate transmission beam forming vector of first wireless chip when sending data frame；
It is calculated according to method identical with transmission beam forming vector of first wireless chip when sending data frame is calculated
Transmission beam forming vector of described other wireless chips other than first wireless chip when sending data frame.
6. a kind of multiple users wireless local network connecting point AP, characterized by comprising:
Multiple wireless chips worked on same channel, each wireless chip are associated with a single-antenna user terminal, have N number of
Transmitting terminal and N number of receiving end, N number of transmitting terminal connect one to one N number of combiner respectively, N number of receiving end difference one
One is correspondingly connected with N number of power splitter, and N number of combiner and N number of power splitter connect one to one N number of switch jointly, the N
A to switch N number of antenna that connects one to one, N number of antenna is correspondingly connected with the single-antenna user terminal；
State setting module, for making the multiple wireless chip worked on same channel while entering transmission state；
Type identification module, for identification the multiple type for working in frame to be sent in the wireless chip on same channel；
First frame processing module, for when the type of the frame to be sent be management frame when, determine it is the multiple work in it is identical
N number of switch is set transmission state by the transmission timing of wireless chip on channel, and according to the transmission timing via
N number of combiner sends the management frame；
Second frame processing module, for making the multiple to work in identical letter when the type of the frame to be sent is data frame
Wireless chip on road sends the data frame simultaneously on the same channel and gives each wireless chip corresponding Dan Tian
Line user terminal；
Wherein, the quantity of the wireless chip and the single-antenna user terminal is N, and N is the natural number greater than 1.
7. access point AP according to claim 6, which is characterized in that
The first frame processing module, if the type specifically for frame to be sent is the beacon frame in management frame, by institute
It states each wireless chip transmission timing to be staggered, sets transmission state for N number of switch, and via N number of combiner, root
According to the transmission timing after described be staggered, the beacon frame is sent in turn according to the beacon period.
8. access point AP according to claim 6, which is characterized in that
The first frame processing module, if the type specifically for frame to be sent is the uni-cast probe acknowledgement frame in management frame,
Then make to work in wireless chip corresponding with the uni-cast probe acknowledgement frame in the wireless chip on same channel the multiple
Exclusive transmission timing sets transmission state for N number of switch according to the transmission timing, and via N number of combiner
The uni-cast probe acknowledgement frame is sent, other wireless chips is made to keep silent；
If the type of frame to be sent is the broadcast acknowledgement frame in management frame, make to work on same channel the multiple
A wireless chip is randomly choosed in wireless chip and monopolizes transmission timing, and N number of switch is arranged according to the transmission timing
To send state, and the broadcast acknowledgement frame is sent via N number of combiner, other wireless chips is made to keep silent.
9. access point AP according to claim 6, which is characterized in that
The second frame processing module, specifically for when the type of the frame to be sent is data frame, to described each wireless
Channel vector between chip and the corresponding single-antenna user terminal is estimated, is calculated according to the channel vector
Transmission beam forming vector of each wireless chip when sending data frame, makes the multiple work on same channel
Wireless chip sends the data according to the transmission beam forming vector corresponding with itself simultaneously on the same channel
Frame gives each wireless chip corresponding single-antenna user terminal.
10. access point AP according to claim 9, which is characterized in that
The second frame processing module is specifically used for, and when the type of the frame to be sent is data frame, obtains the multiple work
Make in N number of initial between each wireless chip and corresponding single-antenna user terminal in the wireless chip on same channel
Beam forming vector；
The N that vector calculates each wireless chip and corresponding single-antenna user terminal is formed according to the initial beam
A channel vector；
By it is the multiple work in the wireless chip on same channel the first wireless chip and in addition to described first without core
The channel vector between the corresponding N-1 user terminal of other wireless chips other than piece is respectively equivalent to described in addition to institute
State the channel arrow between other wireless chips and its corresponding N-1 single-antenna user terminal other than the first wireless chip
Amount；
When the interference that the N-1 single-antenna user terminal receives is zero, according to first wireless chip and in addition to institute
It states described in the channel vector calculating between the corresponding N-1 user terminal of other wireless chips other than the first wireless chip
Transmission beam forming vector of first wireless chip when sending data frame；
It is calculated according to method identical with transmission beam forming vector of first wireless chip when sending data frame is calculated
Transmission beam forming vector of described other wireless chips other than first wireless chip when sending data frame；
Make the multiple wireless chip worked on same channel according to the transmission beam forming vector corresponding with itself,
Sending the data frame simultaneously on the same channel gives each wireless chip corresponding single-antenna user terminal.
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| SG11201810184QA (en) | 2016-07-22 | 2018-12-28 | Panasonic Ip Corp America | Transmission appratus and transmission method |
| CN107690174B (en) * | 2016-08-06 | 2020-11-17 | 江苏省未来网络创新研究院 | Method for realizing access control compatible with WLAN wireless local area network protocol |
| CN109565707B (en) * | 2016-09-08 | 2022-05-24 | Lg 电子株式会社 | Method for transmitting or receiving signal in wireless LAN system and apparatus therefor |
| CN107277811B (en) * | 2017-05-31 | 2020-04-14 | 上海斐讯数据通信技术有限公司 | Router connection verification method and system |
| CN112822721B (en) * | 2021-02-18 | 2022-03-25 | 杭州网银互联科技股份有限公司 | Transmission efficiency improving system and method suitable for high-density WIFI environment |
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