CN105119851B - Wireless LAN communication method and equipment - Google Patents
Wireless LAN communication method and equipment Download PDFInfo
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- CN105119851B CN105119851B CN201510395136.1A CN201510395136A CN105119851B CN 105119851 B CN105119851 B CN 105119851B CN 201510395136 A CN201510395136 A CN 201510395136A CN 105119851 B CN105119851 B CN 105119851B
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Abstract
The present embodiments relate to Wireless LAN communication methods and device.This method includes：According to channel width, generate message frame, include at least one resource block assignment information position in the message frame, each resource block assignment information position at least one resource block assignment information position is used to indicate the number of orthogonal frequency division multiplex OFDM sub-carrier resources block under different channels bandwidth；Send the message frame.The Wireless LAN communication method and equipment of the embodiment of the present invention, generate and send the message frame for including at least one resource block assignment information position, the resource block assignment information position is used to indicate the number of OFDMA sub-carrier resources blocks, so that receiving device can use assigned sub-carrier resources block, the service efficiency of frequency spectrum is improved, handling capacity in region is improved.
Description
Technical field
The present invention relates to the communications field more particularly to Wireless LAN communication method and equipment.
Background technology
Next-generation Wireless Fidelity (Wireless Fidelity, referred to as " Wi-Fi ") has been set up in May, 2013,802.11
The efficient WLAN of seminar (High Efficiency WLAN, referred to as " HEW ") of technology, main research point is to improve
Handling capacity more higher than existing Wi-Fi technology；Improve efficiently using efficiency, improving user experience (Quality of for frequency spectrum
Experience, referred to as " QoE "), existing Wi-Fi technology is only improved service quality and is fitted than existing Wi-Fi technology
Answer the communication environment of more crypto set.
In order to improve the utilization ratio of frequency spectrum, 802.11ax (HEW) task groups will use orthogonal frequency division multiple access
(Orthogonal Frequency Division Multiple Access, referred to as " OFDMA ") technology carries out the biography of data
It is defeated, and the number for using subcarrier respectively in 20MHz, 40MHz, 80MHz and 160MHz is defined, in different channel strips
Under width, the set of subcarrier (tone) can be 26-tones, 52-tones, 106-tones, 242-tones, 484-tones
And 996-tones.
In existing standard, due to not having to use OFDMA technologies, i.e. equipment monopolizes channel, so specifying only not
The number (being used alone by some equipment) of subcarrier under same channel width, so the subcarrier distribution mechanism in existing standard
It cannot meet and different subcarriers is distributed into different users to improve in region under the same channel width in 802.11ax
The demand of handling capacity.
Invention content
The present invention provides a kind of Wireless LAN communication method and equipment, can improve the availability of frequency spectrum, improve region
Interior handling capacity.
In a first aspect, providing a kind of Wireless LAN communication method, this method includes：According to channel width, generation disappears
Frame is ceased, includes at least one resource block assignment information position in the message frame, it is every at least one resource block assignment information position
A resource block assignment information position is used to indicate the number of orthogonal frequency division multiplex OFDM sub-carrier resources block under different channels bandwidth,
In, indicate that 26 are somebody's turn to do when the target resource block distribution information bit at least one resource block assignment information position is the first value
OFDM sub-carrier resources blocks are expressed as 52 OFDM sub-carrier resources when target resource block distribution information bit is second value
Block is expressed as 106 OFDM sub-carrier resources blocks when target resource block distribution information bit is third value, when the target provides
Source block distribution information bit is expressed as 242 OFDM sub-carrier resources blocks when being four values, when the target resource block distributes information
Position is expressed as 484 OFDM sub-carrier resources blocks when being five values；Send the message frame.
With reference to first aspect, in a kind of realization method of first aspect, when target resource block distribution information bit is the
996 OFDM sub-carrier resources blocks are expressed as when six values.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, the message frame is also
It include the device identification field for identifying at least one website.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, the device identification
Field includes at least in the MAC address, association identification AID and group mark Group ID of at least one website
One kind.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, the device identification
Field is corresponded at least one resource block assignment information position.
With reference to first aspect and its above-mentioned realization method, in another realization method of first aspect, which is
Manage message frame or action message frame.
Second aspect, provides a kind of Wireless LAN communication method, and this method includes：Receive message frame, the message frame
In include at least one resource block assignment information position, each resource block distribution letter at least one resource block assignment information position
Breath position is used to indicate the number of orthogonal frequency division multiplex OFDM sub-carrier resources block under different channels bandwidth, wherein when this at least one
Target resource block distribution information bit in a resource block assignment information position indicates 26 OFDM sub-carrier resources when being the first value
Block is expressed as 52 OFDM sub-carrier resources blocks when target resource block distribution information bit is second value, when the target provides
Source block distribution information bit is expressed as 106 OFDM sub-carrier resources blocks when being third value, when the target resource block distributes information
Position is expressed as 242 OFDM sub-carrier resources blocks when being four values, when target resource block distribution information bit is five value
It is expressed as 484 OFDM sub-carrier resources blocks；According to the message frame, the number of the OFDM sub-carrier resources blocks is determined.
In conjunction with second aspect, in a kind of realization method of second aspect, when target resource block distribution information bit is the
996 OFDM sub-carrier resources blocks are expressed as when six values.
In conjunction with second aspect and its above-mentioned realization method, in another realization method of second aspect, the message frame is also
It include the device identification field for identifying website.
In conjunction with second aspect and its above-mentioned realization method, in another realization method of second aspect, the device identification
Field includes at least one kind in the MAC address, association identification AID and group mark Group ID of the website.
In conjunction with second aspect and its above-mentioned realization method, in another realization method of second aspect, which is
Manage message frame or action message frame.
The third aspect, provides a kind of wireless LAN communication equipment, which includes：Generation module, for according to letter
Road bandwidth generates message frame, includes at least one resource block assignment information position in the message frame, at least one resource block distribution
Each resource block assignment information position in information bit is used to indicate orthogonal frequency division multiplex OFDM subcarrier under different channels bandwidth and provides
The number of source block, wherein when the target resource block distribution information bit at least one resource block assignment information position is the first value
When indicate 26 OFDM sub-carrier resources blocks, when the target resource block distribution information bit be second value when be expressed as 52 should
OFDM sub-carrier resources blocks are expressed as 106 OFDM subcarriers moneys when target resource block distribution information bit is third value
Source block is expressed as 242 OFDM sub-carrier resources blocks, when the target when target resource block distribution information bit is four value
Resource block assignment information position is expressed as 484 OFDM sub-carrier resources blocks when being five values；Sending module, for sending the life
The message frame generated at module.
In conjunction with the third aspect, in a kind of realization method of the third aspect, when target resource block distribution information bit is the
996 OFDM sub-carrier resources blocks are expressed as when six values.
In conjunction with the third aspect and its above-mentioned realization method, in another realization method of the third aspect, the message frame is also
It include the device identification field for identifying at least one website.
In conjunction with the third aspect and its above-mentioned realization method, in another realization method of the third aspect, the device identification
Field includes at least in the MAC address, association identification AID and group mark Group ID of at least one website
One kind.
In conjunction with the third aspect and its above-mentioned realization method, in another realization method of the third aspect, the device identification
Field is corresponded at least one resource block assignment information position.
In conjunction with the third aspect and its above-mentioned realization method, in another realization method of the third aspect, which is
Manage message frame or action message frame.
Fourth aspect, provides a kind of wireless LAN communication equipment, which includes：Receiving module, for connecing
The message frame that access point is sent includes at least one resource block assignment information position in the message frame, at least one resource block distribution
Each resource block assignment information position in information bit is used to indicate orthogonal frequency division multiplex OFDM subcarrier under different channels bandwidth and provides
The number of source block, wherein when the target resource block distribution information bit at least one resource block assignment information position is the first value
When indicate 26 OFDM sub-carrier resources blocks, when the target resource block distribution information bit be second value when be expressed as 52 should
OFDM sub-carrier resources blocks are expressed as 106 OFDM subcarriers moneys when target resource block distribution information bit is third value
Source block is expressed as 242 OFDM sub-carrier resources blocks, when the target when target resource block distribution information bit is four value
Resource block assignment information position is expressed as 484 OFDM sub-carrier resources blocks when being five values；Determining module, according to the reception mould
The message frame that block receives, determines the number of the OFDM sub-carrier resources blocks.
In conjunction with fourth aspect, in a kind of realization method of fourth aspect, when target resource block distribution information bit is the
When six values, it is expressed as 996 OFDM sub-carrier resources blocks.
In conjunction with fourth aspect and its above-mentioned realization method, in another realization method of fourth aspect, the message frame is also
It include the device identification field for identifying website.
In conjunction with fourth aspect and its above-mentioned realization method, in another realization method of fourth aspect, the device identification
Field includes at least one kind in the MAC address, association identification AID and group mark Group ID of the website.
In conjunction with fourth aspect and its above-mentioned realization method, in another realization method of fourth aspect, which is
Manage message frame or action message frame.
Based on the above-mentioned technical proposal, the Wireless LAN communication method and equipment of the embodiment of the present invention, generates and sends packet
The message frame of at least one resource block assignment information position is included, which is used to indicate OFDMA sub-carrier resources
The number of block improves the service efficiency of frequency spectrum so that receiving device can use assigned sub-carrier resources block, improves
Handling capacity in region.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the schematic flow chart of Wireless LAN communication method according to the ... of the embodiment of the present invention.
Fig. 2 is the schematic diagram of the message frame of Wireless LAN communication method according to the ... of the embodiment of the present invention.
Fig. 3 is another schematic diagram of the message frame of Wireless LAN communication method according to the ... of the embodiment of the present invention.
Fig. 4 is the schematic flow chart of Wireless LAN communication method according to another embodiment of the present invention.
Fig. 5 is the schematic block diagram of wireless LAN communication equipment according to the ... of the embodiment of the present invention.
Fig. 6 is the schematic block diagram of wireless LAN communication equipment according to another embodiment of the present invention.
Specific implementation mode
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 describes, it is clear that described embodiment is a part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, the scope of protection of the invention should be all belonged to.
Fig. 1 shows the schematic flow chart of Wireless LAN communication method 100 according to the ... of the embodiment of the present invention, this method
100 can be executed by access point (Access Point, referred to as " AP ").As shown in Figure 1, this method 100 includes：
S110 generates message frame according to channel width, includes at least one resource block assignment information position in the message frame,
Each resource block assignment information position at least one resource block assignment information position is used to indicate orthogonal under different channels bandwidth
The number of frequency division multiplex OFDM sub-carrier resources block, wherein the target resource at least one resource block assignment information position
Block distributes when information bit is the first value and indicates 26 OFDM sub-carrier resources blocks, when target resource block distribution information bit is the
It is expressed as 52 OFDM sub-carrier resources blocks when two-value, is expressed as when target resource block distribution information bit is third value
106 OFDM sub-carrier resources blocks are expressed as 242 OFDM when target resource block distribution information bit is four value
Carrier resource block is expressed as 484 OFDM sub-carrier resources blocks when target resource block distribution information bit is five value；
S120 sends the message frame.
Therefore, the Wireless LAN communication method of the embodiment of the present invention generates and sends including at least one resource block point
Message frame with information bit, which is used to indicate the number of OFDMA sub-carrier resources blocks, so that connecing
Receiving unit can use assigned sub-carrier resources block, improve the service efficiency of frequency spectrum, improve handling capacity in region.
In S110, access point generates message frame, includes at least one resource block point in the message frame according to channel width
With information bit, each resource block assignment information position at least one resource block assignment information position is used to indicate different channels band
The number of the lower orthogonal frequency division multiplex OFDM sub-carrier resources block of width.It specifically, can in child resource block for different channel width
To include the subcarrier of different numbers, i.e., the OFDM sub-carrier resources blocks of different numbers.For example, be 20MHz for channel width,
It can be classified as the child resource block of n 26 subcarriers, i.e., each child resource block includes 26 subcarriers, shares n son
Resource block；The resource block of the child resource block and 26 subcarrier of m 52 subcarriers, i.e. m child resource can also be divided into
Block includes the child resource block that 52 subcarriers and one include 26 subcarriers, and the present invention is not limited thereto, specifically,
Under different channels bandwidth, the quantity type of subcarrier can be as shown in table 1：
Table 1
In embodiments of the present invention, due to different channels bandwidth, it may include the child resource block of different number subcarriers, connect
Access point can indicate the number of OFDM sub-carrier resources blocks by least one resource block assignment information position.For this at least one
Target resource block in a resource block assignment information position distributes information bit, and it can be at least one which, which distributes information bit,
Any one resource block assignment information position in a resource block assignment information position, when target resource block distribution information bit is first
When value, it can indicate that child resource block includes 26 subcarriers；It, can be with when target resource block distribution information bit is second value
Indicate that child resource block includes 52 subcarriers；When target resource block distribution information bit is third value, sub- money can be indicated
Source block includes 106 subcarriers；When target resource block distribution information bit is four value, can indicate to wrap in child resource block
Include 242 subcarriers；When target resource block distribution information bit is five value, it can indicate that child resource block includes 484
Subcarrier；When target resource block distribution information bit is six value, it can indicate that child resource block includes 996 subcarriers,
But the present invention is not limited thereto.
Optionally, as one embodiment, when target resource block distribution information bit is the first value, such as first value
For " 00000001 ", then it represents that 26 subcarriers；When target resource block distribution information bit is second value, such as the second value
For " 00000010 ", then it represents that 52 subcarriers；When target resource block distribution information bit is third value, such as the third value
For " 00000011 ", then it represents that 106 subcarriers；When target resource block distribution information bit is four value, such as the 4th
Value is " 00000100 ", then it represents that 242 subcarriers；When target resource block distribution information bit is five value, for example, this
Five values are " 00000101 ", then it represents that 484 subcarriers；When target resource block distribution information bit is six value, such as should
6th value is " 00000111 ", then it represents that 996 subcarriers, but the present invention is not limited thereto.
In embodiments of the present invention, the message frame that access point determines may include Element ED field, length field and at least
One resource block assignment information position, wherein Element ED field is for indicating that the message frame can serve to indicate that resource block distributes feelings
Condition, length field can serve to indicate that the length of the message frame, resource block assignment information position are used to indicate OFDM sub-carrier resources
Block number.For example, as shown in Fig. 2, the message frame includes Element ED field, length field and a resource block assignment information position,
Wherein, the value of element ID (Element ID) field could be provided as " 11111101 ", for indicating that the message frame can be used for
Bearing resource block distributes information；Length field is used to indicate the length of the message frame；Resource block assignment information position is for indicating have
The number of body subcarrier (tone), such as the value of resource block assignment information position is that " 00000001 " indicates 26-tones,
" 00000010 " indicates that 52-tones, " 00000011 " indicate that 106-tones, " 00000100 " indicate 242-tones,
" 00000101 " indicates that 484-tones, " 00000111 " indicate 996-tones.
Optionally, as one embodiment, which can also include device identification field, be used to indicate at least one
Website, optionally, the device identification field can be MAC address, the association identification of website
At least one of (association identifier, referred to as " AID ") and group mark (Group ID), but invention and unlimited
In this.Optionally, resource block assignment information position and device identification field are correspondingly, that is, to be used to indicate a site apparatus
Device identification field correspond to a resource block assignment information position, but the present invention is not limited thereto.
Specifically, for example, as shown in figure 3, the message frame may include Element ED field, length field, n resource block point
With information bit and n device identification field, wherein the value of element ID (Element ID) field could be provided as
" 11111101 " distribute information for indicating that the message frame can be used for bearing resource block；Length field is used to indicate the message
The length of frame；Resource block assignment information position i is for indicating that access point distributes to the number of the subcarrier (tone) of site apparatus i；
Device identification i is the device identification field of site apparatus i, is used to indicate site apparatus i, any one during i takes 1 to n is just whole
Number, n are the number of site apparatus, and resource block assignment information position i and device identification i are the subdomain continuously occurred, are used to indicate station
The number of subcarrier assigned point device i.
In S120, access point sends the message frame to receiving terminal, and optionally, which can be website.Specifically,
The message frame can be sent by access point by way of broadcast or multicast, which can be action message frame, can also
To manage message frame, for example, in downlink, in the link of access point to website, which can be encapsulated in Beacon frames
In broadcast out, but the present invention is not limited thereto.
It should be understood that in various embodiments of the present invention, size of the sequence numbers of the above procedures is not meant to execute suitable
The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Therefore, the Wireless LAN communication method of the embodiment of the present invention generates and sends including at least one resource block point
Message frame with information bit, which is used to indicate the number of OFDMA sub-carrier resources blocks, so that connecing
Receiving unit can use assigned sub-carrier resources block, improve the service efficiency of frequency spectrum, improve handling capacity in region.
Above in conjunction with Fig. 1 to Fig. 3, wireless local according to the ... of the embodiment of the present invention is described in detail from the angle of transmitting terminal
Network Communication method describes wireless LAN communication side according to the ... of the embodiment of the present invention below in conjunction with Fig. 4 from the angle of receiving terminal
Method.
Fig. 4 shows the schematic flow chart of Wireless LAN communication method 200 according to another embodiment of the present invention, should
Method 200 can be executed by website (Station, referred to as " STA ").As shown in figure 4, this method 200 includes：
S210 receives message frame, includes at least one resource block assignment information position, at least one resource in the message frame
Each resource block assignment information position in block distribution information bit is used to indicate orthogonal frequency division multiplex OFDM under different channels bandwidth
The number of carrier resource block, wherein when the target resource block distribution information bit at least one resource block assignment information position is
26 OFDM sub-carrier resources blocks are indicated when the first value, and 52 are expressed as when target resource block distribution information bit is second value
A OFDM sub-carrier resources blocks are expressed as 106 OFDM loads when target resource block distribution information bit is third value
Wave resource block is expressed as 242 OFDM sub-carrier resources blocks, when this when target resource block distribution information bit is four value
Target resource block distribution information bit is expressed as 484 OFDM sub-carrier resources blocks when being five values；
S220 determines the number of the OFDM sub-carrier resources blocks according to the message frame.
Therefore, the Wireless LAN communication method of the embodiment of the present invention, reception includes at least one resource block assignment information
The message frame of position, the resource block assignment information position are used to indicate the number of OFDMA sub-carrier resources blocks, are determined according to the message frame
Subcarrier number improves the use of frequency spectrum so that receiving device can determine and use assigned sub-carrier resources block
Efficiency improves handling capacity in region.
In S210, website receives the message frame that access point is sent, which includes at least one resource block distribution
Information bit, each resource block assignment information position are used to indicate the number for the OFDM sub-carrier resources blocks that access point is website distribution.
Specifically, website determines the number of assigned subcarrier according to resource block assignment information position, at least one resource block
The target resource block distributed in information bit distributes information bit, and it can be at least one resource block which, which distributes information bit,
Any one resource block assignment information position in information bit is distributed, it, can when target resource block distribution information bit is the first value
To indicate that child resource block includes 26 subcarriers, i.e., the website is assigned 26 subcarriers；Similarly, when the target resource block
When distribution information bit is second value, it can indicate that child resource block includes 52 subcarriers；When the target resource block distributes information
When position is third value, it can indicate that child resource block includes 106 subcarriers；When target resource block distribution information bit is the 4th
When value, it can indicate that child resource block includes 242 subcarriers；It, can when target resource block distribution information bit is five value
To indicate that child resource block includes 484 subcarriers；When target resource block distribution information bit is six value, son can be indicated
Resource block includes 996 subcarriers, but the present invention is not limited thereto.
In embodiments of the present invention, the message frame that website receives may include Element ED field, length field and at least one
A resource block assignment information position, wherein Element ED field for indicating that the message frame can serve to indicate that resource block distribution condition,
Length field can serve to indicate that the length of the message frame, resource block assignment information position are used to indicate assigned OFDM subcarriers
Resource block number.For example, as shown in Fig. 2, the message frame includes Element ED field, length field and a resource block assignment information
Position, wherein the value of element ID (Element ID) field could be provided as " 11111101 ", for indicating that the message frame can be used
Information is distributed in bearing resource block；Length field is used to indicate the length of the message frame；Resource block assignment information position is for indicating
The number of the subcarrier (tone) of the website is distributed, such as the value of resource block assignment information position is that " 00000001 " indicates 26-
Tones, " 00000010 " indicate that 52-tones, " 00000011 " indicate that 106-tones, " 00000100 " indicate 242-tones,
" 00000101 " indicates that 484-tones, " 00000111 " indicate 996-tones.
Optionally, as one embodiment, which can also include device identification field, be used to indicate at least one
Website, according to the device identification field and corresponding resource block assignment information position, website can determine assigned subcarrier
Quantity.Optionally, which can be MAC address, the association identification of website
At least one of (association identifier, referred to as " AID ") and group mark (Group ID), but invention and unlimited
In this.For example, as shown in figure 3, the message frame may include Element ED field, length field, n resource block assignment information position and
N device identification field, wherein the value of element ID (Element ID) field could be provided as " 11111101 ", for indicating
The message frame can be used for bearing resource block distribution information；Length field is used to indicate the length of the message frame；Resource block distributes
Information bit i is for indicating that access point distributes to the number of the subcarrier (tone) of site apparatus i；Device identification i is site apparatus i
Device identification field, be used to indicate site apparatus i, any one positive integer during i takes 1 to n, n be site apparatus number,
Resource block assignment information position i and device identification i is the subdomain continuously occurred, is used to indicate the assigned subcarriers of site apparatus i
Number.For website i, the subcarrier number of corresponding resource block assignment information position i instructions is determined according to device identification i, i.e.,
Access point is the number of the subcarrier of website i distribution.
In embodiments of the present invention, website receives the message frame, and optionally, which can be passed through broadcast by access point
Or the mode of multicast is sent, and which can be action message frame, or management message frame, for example, in downlink,
In access point to the link of website, which can be encapsulated in Beacon frames and broadcast out, and website receives the message frame, but
The present invention is not limited thereto.
In S220, website can determine the number of the OFDM sub-carrier resources blocks according to the message frame.
It should be understood that in various embodiments of the present invention, size of the sequence numbers of the above procedures is not meant to execute suitable
The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
Therefore, the Wireless LAN communication method of the embodiment of the present invention, reception includes at least one resource block assignment information
The message frame of position, the resource block assignment information position are used to indicate the number of OFDMA sub-carrier resources blocks, are determined according to the message frame
Subcarrier number improves the use of frequency spectrum so that receiving device can determine and use assigned sub-carrier resources block
Efficiency improves handling capacity in region.
Above in conjunction with Fig. 1 to Fig. 4, Wireless LAN communication method according to the ... of the embodiment of the present invention is described in detail, under
Face will describe wireless LAN communication equipment according to the ... of the embodiment of the present invention in conjunction with Fig. 5 to Fig. 6.
Fig. 5 shows the schematic block diagram of wireless LAN communication equipment 300 according to the ... of the embodiment of the present invention, optionally,
The equipment 300 can be access point.As shown in figure 5, the equipment 300 includes：
Generation module 310 includes at least one resource block in the message frame for according to channel width, generating message frame
Information bit is distributed, each resource block assignment information position at least one resource block assignment information position is used to indicate different channels
The number of orthogonal frequency division multiplex OFDM sub-carrier resources block under bandwidth, wherein when at least one resource block assignment information position
Target resource block distribution information bit be the first value when indicate 26 OFDM sub-carrier resources blocks, when the target resource block distribute
Information bit is expressed as 52 OFDM sub-carrier resources blocks when being second value, when target resource block distribution information bit is third value
When be expressed as 106 OFDM sub-carrier resources blocks, when the target resource block distribution information bit be four values when be expressed as 242
The OFDM sub-carrier resources blocks are expressed as 484 OFDM subcarriers when target resource block distribution information bit is five value
Resource block；
Sending module 320, the message frame for sending the generation module 310 generation.
Therefore, the wireless LAN communication equipment of the embodiment of the present invention generates and sends including at least one resource block point
Message frame with information bit, which is used to indicate the number of OFDMA sub-carrier resources blocks, so that connecing
Receiving unit can use assigned sub-carrier resources block, improve the service efficiency of frequency spectrum, improve handling capacity in region.
In embodiments of the present invention, access point, according to channel width, can generate message frame by producing module 310, should
Include at least one resource block assignment information position, each resource block at least one resource block assignment information position in message frame
Distribution information bit is used to indicate the number of orthogonal frequency division multiplex OFDM sub-carrier resources block under different channels bandwidth.Specifically, right
May include the subcarrier of different numbers, i.e., the OFDM subcarriers money of different numbers in different channel width, child resource block
Source block.For example, being 20MHz for channel width, it can be classified as the child resource block of n 26 subcarriers, i.e., provided per height
Source block includes 26 subcarriers, shares n sub- resource blocks；Can also be divided into 52 subcarriers of m child resource block and one
The resource block of 26 subcarriers, i.e. m resource block include the son money that 52 subcarriers and one include 26 subcarriers
Source block, the present invention is not limited thereto, and specifically, under different channels bandwidth, the quantity type of subcarrier can be as shown in table 1.
In embodiments of the present invention, due to different channels bandwidth, it may include the child resource block of different number subcarriers, connect
Access point can determine at least one resource block assignment information position to indicate of OFDM sub-carrier resources blocks by production module 310
Number.Information bit, target resource block distribution letter are distributed for the target resource block at least one resource block assignment information position
It can be any one resource block assignment information position at least one resource block assignment information position to cease position, when the target resource block
When distribution information bit is the first value, it can indicate that child resource block includes 26 subcarriers；When the target resource block distributes information
When position is second value, it can indicate that child resource block includes 52 subcarriers；When target resource block distribution information bit is third
When value, it can indicate that child resource block includes 106 subcarriers；It, can when target resource block distribution information bit is four value
To indicate that child resource block includes 242 subcarriers；When target resource block distribution information bit is five value, son can be indicated
Resource block includes 484 subcarriers；When target resource block distribution information bit is six value, can indicate in child resource block
Including 996 subcarriers, but the present invention is not limited thereto.
Optionally, as one embodiment, when target resource block distribution information bit is the first value, such as first value
For " 00000001 ", then it represents that 26 subcarriers；When target resource block distribution information bit is second value, such as the second value
For " 00000010 ", then it represents that 52 subcarriers；When target resource block distribution information bit is third value, such as the third value
For " 00000011 ", then it represents that 106 subcarriers；When target resource block distribution information bit is four value, such as the 4th
Value is " 00000100 ", then it represents that 242 subcarriers；When target resource block distribution information bit is five value, for example, this
Five values are " 00000101 ", then it represents that 484 subcarriers；When target resource block distribution information bit is six value, such as should
6th value is " 00000111 ", then it represents that 996 subcarriers, but the present invention is not limited thereto.
In embodiments of the present invention, the message frame that access point determines may include Element ED field, length field and at least
One resource block assignment information position, wherein Element ED field is for indicating that the message frame can serve to indicate that resource block distributes feelings
Condition, length field can serve to indicate that the length of the message frame, resource block assignment information position are used to indicate OFDM sub-carrier resources
Block number.For example, as shown in Fig. 2, the message frame includes Element ED field, length field and a resource block assignment information position,
Wherein, the value of element ID (Element ID) field could be provided as " 11111101 ", for indicating that the message frame can be used for
Bearing resource block distributes information；Length field is used to indicate the length of the message frame；Resource block assignment information position is for indicating have
The number of body subcarrier (tone), such as the value of resource block assignment information position is that " 00000001 " indicates 26-tones,
" 00000010 " indicates that 52-tones, " 00000011 " indicate that 106-tones, " 00000100 " indicate 242-tones,
" 00000101 " indicates that 484-tones, " 00000111 " indicate 996-tones.
Optionally, as one embodiment, which can also include device identification field, be used to indicate at least one
Website, optionally, the device identification field can be MAC address, the association identification of website
At least one of (association identifier, referred to as " AID ") and group mark (Group ID), but invention and unlimited
In this.Optionally, resource block assignment information position and device identification field are correspondingly, that is, to be used to indicate a site apparatus
Device identification field correspond to a resource block assignment information position, but the present invention is not limited thereto.
Specifically, for example, as shown in figure 3, the message frame may include Element ED field, length field, n resource block point
With information bit and n device identification field, wherein the value of element ID (Element ID) field could be provided as
" 11111101 " distribute information for indicating that the message frame can be used for bearing resource block；Length field is used to indicate the message
The length of frame；Resource block assignment information position i is for indicating that access point distributes to the number of the subcarrier (tone) of site apparatus i；
Device identification i is the device identification field of site apparatus i, is used to indicate site apparatus i, any one during i takes 1 to n is just whole
Number, n are the number of site apparatus, and resource block assignment information position i and device identification i are the subdomain continuously occurred, are used to indicate station
The number of subcarrier assigned point device i.
In embodiments of the present invention, the sending module 320 of access point to receiving terminal send production module 310 produce this disappear
Frame is ceased, optionally, which can be website.Specifically, the side which can pass through broadcast or multicast by access point
Formula is sent, which can be action message frame, or management message frame, for example, in downlink, access point arrives at a station
In the link of point, which can be encapsulated in Beacon frames and broadcast out, but the present invention is not limited thereto.
It should be understood that wireless LAN communication equipment 300 according to the ... of the embodiment of the present invention can correspond to execute implementation of the present invention
Method 100 in example, and above and other operation and/or function of the modules in wireless LAN communication equipment 300
Respectively in order to realize the corresponding flow of each method in Fig. 1, for sake of simplicity, details are not described herein.
Therefore, the wireless LAN communication equipment of the embodiment of the present invention generates and sends including at least one resource block point
Message frame with information bit, which is used to indicate the number of OFDMA sub-carrier resources blocks, so that connecing
Receiving unit can use assigned sub-carrier resources block, improve the service efficiency of frequency spectrum, improve handling capacity in region.
Fig. 6 shows the schematic block diagram of wireless LAN communication equipment 400 according to another embodiment of the present invention, optional
Ground, the equipment 400 can be website.As shown in fig. 6, the equipment 400 includes：
Receiving module 410, the message frame for receiving access point transmission include at least one resource block point in the message frame
With information bit, each resource block assignment information position at least one resource block assignment information position is used to indicate different channels band
The number of the lower orthogonal frequency division multiplex OFDM sub-carrier resources block of width, wherein when at least one resource block assignment information position
Target resource block distributes when information bit is the first value and indicates 26 OFDM sub-carrier resources blocks, believes when the target resource block distributes
Breath position is expressed as 52 OFDM sub-carrier resources blocks when being second value, when target resource block distribution information bit is third value
106 OFDM sub-carrier resources blocks are expressed as, being expressed as 242 when target resource block distribution information bit is four value should
OFDM sub-carrier resources blocks are expressed as 484 OFDM subcarriers moneys when target resource block distribution information bit is five value
Source block；
Determining module 420 determines the OFDM sub-carrier resources blocks according to the message frame that the receiving module 410 receives
Number.
Therefore, the wireless LAN communication equipment of the embodiment of the present invention, reception includes at least one resource block assignment information
The message frame of position, the resource block assignment information position are used to indicate the number of OFDMA sub-carrier resources blocks, are determined according to the message frame
Subcarrier number improves the use of frequency spectrum so that receiving device can determine and use assigned sub-carrier resources block
Efficiency improves handling capacity in region.
In embodiments of the present invention, the receiving module 410 of website receives the message frame that access point is sent, and is wrapped in the message frame
At least one resource block assignment information position is included, each resource block assignment information position is used to indicate the OFDM that access point is website distribution
The number of sub-carrier resources block.Specifically, website determines the number of assigned subcarrier according to resource block assignment information position, right
Target resource block at least one resource block assignment information position distributes information bit, which distributes information bit can
Think any one resource block assignment information position at least one resource block assignment information position, believes when the target resource block distributes
When breath position is the first value, it can indicate that child resource block includes 26 subcarriers, i.e., the website is assigned 26 subcarriers；Equally
Ground can indicate that child resource block includes 52 subcarriers when target resource block distribution information bit is second value；When the mesh
When mark resource block assignment information position is third value, it can indicate that child resource block includes 106 subcarriers；When the target resource block
When distribution information bit is four value, it can indicate that child resource block includes 242 subcarriers；When the target resource block distributes information
When position is five value, it can indicate that child resource block includes 484 subcarriers；When target resource block distribution information bit is the 6th
When value, it can indicate that child resource block includes 996 subcarriers, but the present invention is not limited thereto.
In embodiments of the present invention, the message frame that website receives may include Element ED field, length field and at least one
A resource block assignment information position, wherein Element ED field for indicating that the message frame can serve to indicate that resource block distribution condition,
Length field can serve to indicate that the length of the message frame, resource block assignment information position are used to indicate assigned OFDM subcarriers
Resource block number.For example, as shown in Fig. 2, the message frame includes Element ED field, length field and a resource block assignment information
Position, wherein the value of element ID (Element ID) field could be provided as " 11111101 ", for indicating that the message frame can be used
Information is distributed in bearing resource block；Length field is used to indicate the length of the message frame；Resource block assignment information position is for indicating
The number of the subcarrier (tone) of the website is distributed, such as the value of resource block assignment information position is that " 00000001 " indicates 26-
Tones, " 00000010 " indicate that 52-tones, " 00000011 " indicate that 106-tones, " 00000100 " indicate 242-tones,
" 00000101 " indicates that 484-tones, " 00000111 " indicate 996-tones.
Optionally, as one embodiment, which can also include device identification field, be used to indicate at least one
Website, according to the device identification field and corresponding resource block assignment information position, website can determine assigned subcarrier
Quantity.Optionally, which can be MAC address, the association identification of website
At least one of (association identifier, referred to as " AID ") and group mark (Group ID), but invention and unlimited
In this.For example, as shown in figure 3, the message frame may include Element ED field, length field, n resource block assignment information position and
N device identification field, wherein the value of element ID (Element ID) field could be provided as " 11111101 ", for indicating
The message frame can be used for bearing resource block distribution information；Length field is used to indicate the length of the message frame；Resource block distributes
Information bit i is for indicating that access point distributes to the number of the subcarrier (tone) of site apparatus i；Device identification i is site apparatus i
Device identification field, be used to indicate site apparatus i, any one positive integer during i takes 1 to n, n be site apparatus number,
Resource block assignment information position i and device identification i is the subdomain continuously occurred, is used to indicate the assigned subcarriers of site apparatus i
Number.For website i, the subcarrier number of corresponding resource block assignment information position i instructions is determined according to device identification i, i.e.,
Access point is the number of the subcarrier of website i distribution.
In embodiments of the present invention, website receives the message frame, and optionally, which can be passed through broadcast by access point
Or the mode of multicast is sent, and which can be action message frame, or management message frame, for example, in downlink,
In access point to the link of website, which can be encapsulated in Beacon frames and broadcast out, and website receives the message frame, but
The present invention is not limited thereto.
In embodiments of the present invention, the message frame that website is received according to receiving module 410, is determined by determining module 420
The number of the OFDM sub-carrier resources blocks, and then receive the signal carried on corresponding subcarrier.
It should be understood that wireless LAN communication equipment 400 according to the ... of the embodiment of the present invention can correspond to execute implementation of the present invention
Method 200 in example, and above and other operation and/or function of the modules in wireless LAN communication equipment 400
Respectively in order to realize the corresponding flow of each method in Fig. 2, for sake of simplicity, details are not described herein.
Therefore, the wireless LAN communication equipment of the embodiment of the present invention, reception includes at least one resource block assignment information
The message frame of position, the resource block assignment information position are used to indicate the number of OFDMA sub-carrier resources blocks, are determined according to the message frame
Subcarrier number improves the use of frequency spectrum so that receiving device can determine and use assigned sub-carrier resources block
Efficiency improves handling capacity in region.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit
It closes or communicates to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (22)
1. a kind of Wireless LAN communication method, the method includes：
According to channel width, message frame is generated, includes the corresponding at least one resource block of at least one website in the message frame
Information bit is distributed, at least one website is corresponded at least one resource block assignment information position, and described at least one
Each resource block assignment information position in a resource block assignment information position is used to indicate the orthogonal frequency division multiplex OFDM of corresponding website
The number of the number of sub-carrier resources block, the OFDM sub-carrier resources block of each resource block assignment information position instruction is
It is determined according to the channel width, wherein when the target resource block distribution at least one resource block assignment information position
26 OFDM sub-carrier resources blocks are indicated when information bit is the first value, when target resource block distribution information bit is second
It is expressed as 52 OFDM sub-carrier resources blocks when value, is expressed as when target resource block distribution information bit is third value
106 OFDM sub-carrier resources blocks are expressed as when target resource block distribution information bit is four value described in 242
OFDM sub-carrier resources blocks are expressed as 484 OFDM loads when target resource block distribution information bit is five value
Wave resource block；
Send the message frame.
2. according to the method described in claim 1, wherein, being expressed as when target resource block distribution information bit is six value
996 OFDM sub-carrier resources blocks.
3. method according to claim 1 or 2, wherein the message frame further includes for identifying at least one website
Device identification field.
4. according to the method described in claim 3, wherein, the device identification field includes at least at least one website
One kind in MAC address, association identification AID and group mark Group ID.
5. according to the method described in claim 3, wherein, the device identification field is believed at least one resource block distribution
Position is ceased to correspond.
6. method according to claim 1 or 2, wherein the message frame is management message frame or action message frame.
7. a kind of Wireless LAN communication method, the method includes：
Message frame is received, includes the corresponding at least one resource block assignment information position of at least one website, institute in the message frame
It states at least one website to correspond at least one resource block assignment information position, at least one resource block distribution letter
Each resource block assignment information position in breath position is used to indicate the orthogonal frequency division multiplex OFDM sub-carrier resources block of corresponding website
The number of number, the OFDM sub-carrier resources block of each resource block assignment information position instruction is true according to channel width
Fixed, wherein the table when the target resource block distribution information bit at least one resource block assignment information position is the first value
Show 26 OFDM sub-carrier resources blocks, is expressed as described in 52 when target resource block distribution information bit is second value
OFDM sub-carrier resources blocks are expressed as 106 OFDM loads when target resource block distribution information bit is third value
Wave resource block is expressed as 242 OFDM sub-carrier resources blocks when target resource block distribution information bit is four value,
It is expressed as 484 OFDM sub-carrier resources blocks when target resource block distribution information bit is five value；
According to the message frame, the number of the OFDM sub-carrier resources block is determined.
8. according to the method described in claim 7, wherein, being expressed as when target resource block distribution information bit is six value
996 OFDM sub-carrier resources blocks.
9. according to the method described in claim 7, wherein, the message frame further includes the device identification word for identifying website
Section.
10. according to the method described in claim 9, wherein, the media that the device identification field includes at least the website are visited
Ask one kind in control MAC Address, association identification AID and group mark Group ID.
11. method according to any one of claims 7 to 10, wherein the message frame is management message frame or action
Message frame.
12. the equipment in a kind of WLAN, the equipment include：
Generation module includes that at least one website is corresponding extremely in the message frame for according to channel width, generating message frame
A few resource block assignment information position, at least one website are a pair of at least one resource block assignment information position one
It answers, each resource block assignment information position at least one resource block assignment information position is used to indicate the orthogonal of corresponding website
The number of frequency division multiplex OFDM sub-carrier resources block, the OFDM subcarriers money of each resource block assignment information position instruction
The number of source block is to be determined according to the channel width, wherein the mesh at least one resource block assignment information position
It marks when resource block assignment information position is the first value and indicates 26 OFDM sub-carrier resources blocks, when the target resource block distributes
Information bit is expressed as 52 OFDM sub-carrier resources blocks when being second value, when target resource block distribution information bit is the
106 OFDM sub-carrier resources blocks are expressed as when three values, the table when target resource block distribution information bit is four value
242 OFDM sub-carrier resources blocks are shown as, 484 are expressed as when target resource block distribution information bit is five value
The OFDM sub-carrier resources block；
Sending module, the message frame generated for sending the generation module.
13. equipment according to claim 12, wherein indicated when target resource block distribution information bit is six value
For 996 OFDM sub-carrier resources blocks.
14. equipment according to claim 12 or 13, wherein the message frame further includes for identifying at least one website
Device identification field.
15. equipment according to claim 14, wherein the device identification field includes at least at least one website
MAC address, one kind in association identification AID and group mark Group ID.
16. equipment according to claim 14, wherein the device identification field is distributed at least one resource block
Information bit corresponds.
17. equipment according to claim 12 or 13, wherein the message frame is management message frame or action message frame.
18. the equipment in a kind of WLAN, the equipment include：
Receiving module, the message frame for receiving access point transmission are corresponding extremely comprising at least one website in the message frame
A few resource block assignment information position, at least one website are a pair of at least one resource block assignment information position one
It answers, each resource block assignment information position at least one resource block assignment information position is used to indicate the orthogonal of corresponding website
The number of frequency division multiplex OFDM sub-carrier resources block, the OFDM subcarriers money of each resource block assignment information position instruction
The number of source block is to be determined according to channel width, wherein when the target money at least one resource block assignment information position
Source block distributes when information bit is the first value and indicates 26 OFDM sub-carrier resources blocks, when the target resource block distributes information
Position is expressed as 52 OFDM sub-carrier resources blocks when being second value, when target resource block distribution information bit is third value
When be expressed as 106 OFDM sub-carrier resources blocks, when the target resource block distribution information bit be four values when be expressed as
242 OFDM sub-carrier resources blocks are expressed as when target resource block distribution information bit is five value described in 484
OFDM sub-carrier resources blocks；
Determining module determines the number of the OFDM sub-carrier resources block according to the message frame that the receiving module receives.
19. equipment according to claim 18, wherein when target resource block distribution information bit is six value, table
It is shown as 996 OFDM sub-carrier resources blocks.
20. equipment according to claim 18, wherein the message frame further includes the device identification word for identifying website
Section.
21. equipment according to claim 20, wherein the media that the device identification field includes at least the website are visited
Ask one kind in control MAC Address, association identification AID and group mark Group ID.
22. the equipment according to any one of claim 18 to 21, wherein the message frame is management message frame or action
Message frame.
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| CN109462560B (en) | 2015-11-23 | 2020-07-07 | 华为技术有限公司 | Wireless local area network data transmission method and device |
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| EP2950494B1 (en) * | 2013-08-27 | 2017-11-15 | Huawei Device Co., Ltd. | Machine-type communication downlink data transmission method, base station and use equipment |
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Address after: 519085 Technology Innovation Coast Meizu science and technology building, Zhuhai High-tech Zone, Guangdong Patentee after: Zhuhai Meizu Technology Co., Ltd. Address before: 519085 Technology Innovation Coast Meizu science and technology building, Zhuhai High-tech Zone, Guangdong Patentee before: Meizu Technology (China) Co., Ltd. |