CN105007632B - The communication means and communication device of WLAN - Google Patents
The communication means and communication device of WLAN Download PDFInfo
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- CN105007632B CN105007632B CN201510528818.5A CN201510528818A CN105007632B CN 105007632 B CN105007632 B CN 105007632B CN 201510528818 A CN201510528818 A CN 201510528818A CN 105007632 B CN105007632 B CN 105007632B
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- Prior art keywords
- resource allocation
- allocation message
- message frame
- destination address
- frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
-
- 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]
Abstract
The present invention provides a kind of communication means of WLAN and communication devices, wherein the communication means of the WLAN, including：Resource allocation message frame is generated, and determines that the sending method of the resource allocation message frame is that unicast transmission or multicast are sent, and determine the order of transmission of the resource allocation message frame and unicast data frames；According to the order of transmission of the sending method of the resource allocation message frame, the destination address of the unicast data frames and the resource allocation message frame and the unicast data frames, the destination address of the resource allocation message frame is set；Send the resource allocation message frame.Technical scheme of the present invention realizes the reasonable setting to the destination address of resource allocation message frame, and then can ensure OFDMA technologies being applied in 802.11ax, improves region handling capacity indirectly.
Description
Technical field
The present invention relates to fields of communication technology, the communication means in particular to a kind of WLAN and a kind of nothing
The communication device of line LAN.
Background technology
Seminar HEW (the High efficiency of next-generation Wi-Fi technology have been set up in May, 2013,802.11
WLAN, efficient WLAN), i.e. 802.11ax, main research point is the handling capacity for improving existing Wi-Fi technology, improves
Frequency spectrum efficiently uses efficiency, improves user experience and service quality Q oE (quality of experience), and realizes
Than the communication environment that existing Wi-Fi technology adapts to more crypto set.
In order to improve the utilization ratio of frequency spectrum, 802.11ax (HEW) task groups will use OFDMA (Orthogonal
Frequency Division Multiple Access, orthogonal frequency division multiple access) technology carry out data transmission, STA
The transmission (i.e. UL OFDMA or UL MIMO) that (Station, work station) carries out uplink data frames is to be based on receiving AP
Downlink trigger frame transmitted by (Access Point, access point), wherein the effect of downlink trigger frame is exactly in order to STAs points
The transmission of upstream data is carried out with frequency spectrum resource, wherein there are two types of the sending methods of trigger frame：Group as shown in figures 1 and 3
Broadcast sending method and unicast sending method shown in Fig. 2.
For the transmission form of multicast trigger frame, the following two kinds can also be divided into：Multicast trigger frame as shown in Figure 1 and its
He sends data frame together；Multicast trigger frame as shown in Figure 3 is individually sent.
In standard formulation, there is manuscript to be made that definition to the format of trigger frame, wherein being determined that trigger frame is one new
Extension control frame, format as shown in figure 4, but the destination address of trigger frame (i.e. A1) is not provided it is relevant fixed
Justice.
Therefore, the destination address for how reasonably defining trigger frame, to ensure that STA can when receiving trigger frame
Accurately determine itself whether be trigger frame receiving terminal become technical problem urgently to be resolved hurrily.
Invention content
The present invention is based at least one above-mentioned technical problem, it is proposed that a kind of communication party of new WLAN
Case realizes the reasonable setting to the destination address of resource allocation message frame, and then can ensure OFDMA technologies being applied to
In 802.11ax, region handling capacity is improved indirectly.
In view of this, the present invention proposes a kind of communication means of WLAN, including：Generate resource allocation message
Frame, and determine that the sending method of the resource allocation message frame is that unicast transmission or multicast are sent, and determine the resource allocation
The order of transmission of message frame and unicast data frames；According to the sending method of the resource allocation message frame, the unicast data frames
Destination address and the resource allocation message frame and the unicast data frames order of transmission, the resource allocation message is set
The destination address of frame；Send the resource allocation message frame.
In the technical scheme, pass through the sending method according to resource allocation message frame (i.e. above-mentioned trigger frame), unicast number
According to the destination address and resource allocation message frame and the order of transmission of unicast data frames of frame, the mesh of resource allocation message frame is set
Mark address, enabling the destination address of resource allocation message frame is set according to actual scene, to ensure that STA is receiving resource
It can determine whether itself is connecing for resource allocation message frame according to the destination address of resource allocation message frame when assignment messages frame
Receiving end realizes the reasonable setting to the destination address of resource allocation message frame, and then can ensure OFDMA technologies being applied to
In 802.11ax, region handling capacity is improved indirectly.
Wherein, the set-up mode of the destination address of resource allocation message frame includes following several：
Set-up mode one：
In the above-mentioned technical solutions, it is preferable that the step of destination address of the resource allocation message frame is arranged specifically is wrapped
It includes：It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame is in the unicast number
When starting to send at the time of being sent completely according to frame, the destination address of the resource allocation message frame and the unicast data frames are set
Destination address it is identical.
In the technical scheme, resource allocation message frame (unicast transmission) is continuously transmitted with unicast data frames, that is, is existed
After unicast data frames are sent, resource allocation message frame is and then sent, then the destination address of resource allocation message frame is arranged
It is identical as the destination address of unicast data frames.
Set-up mode two：
In the above-mentioned technical solutions, it is preferable that the step of destination address of the resource allocation message frame is arranged specifically is wrapped
It includes：It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together.
In the technical scheme, resource allocation message frame (unicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Set-up mode three：
In the above-mentioned technical solutions, it is preferable that the step of destination address of the resource allocation message frame is arranged specifically is wrapped
It includes：It is sent for multicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together.
In the technical scheme, resource allocation message frame (multicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Wherein, under set-up mode three, it is preferable that the step of destination address of the resource allocation message frame is arranged is specific
Further include：It is random generate the destination address being all different with the MAC Address of each STA in STA groups, and will generate at random
The destination address is allocated to each STA；Or
The destination address of the resource allocation message frame is determined based on following formula：Destination address=the MAC1||MAC2|
|……||MACn, wherein MACnIndicate the MAC Address of n-th of STA in STA groups.
According to the second aspect of the invention, it is also proposed that a kind of communication device of WLAN, including：Generation unit,
For generating resource allocation message frame, and determine that the sending method of the resource allocation message frame is that unicast transmission or group are broadcast
It send, and determines the order of transmission of the resource allocation message frame and unicast data frames；Setting unit, for according to the resource point
The destination address of sending method, the unicast data frames with message frame and the resource allocation message frame and the unicast data
The destination address of the resource allocation message frame is arranged in the order of transmission of frame；Transmission unit disappears for sending the resource allocation
Cease frame.
In the technical scheme, pass through sending method, the destination address of unicast data frames according to resource allocation message frame
The destination address of resource allocation message frame is set with resource allocation message frame and the order of transmission of unicast data frames, enabling
The destination address of resource allocation message frame is set according to actual scene, to ensure STA energy when receiving resource allocation message frame
It is enough according to the destination address of resource allocation message frame determine itself whether be resource allocation message frame receiving terminal, realize to money
The reasonable setting of the destination address of source assignment messages frame, and then can ensure OFDMA technologies being applied in 802.11ax, indirectly
Improve region handling capacity.
Wherein, the set-up mode of the destination address of resource allocation message frame includes following several：
Set-up mode one：
In the above-mentioned technical solutions, it is preferable that the setting unit is specifically used for：In the hair of the resource allocation message frame
Mode is sent to be sent for unicast, and the resource allocation message frame starts to send at the time of the unicast data frames are sent completely
When, the destination address that the resource allocation message frame is arranged is identical as the destination address of the unicast data frames.
In the technical scheme, resource allocation message frame (unicast transmission) is continuously transmitted with unicast data frames, that is, is existed
After unicast data frames are sent, resource allocation message frame is and then sent, then the destination address of resource allocation message frame is arranged
It is identical as the destination address of unicast data frames.
Set-up mode two：
In the above-mentioned technical solutions, it is preferable that the setting unit is specifically used for：In the hair of the resource allocation message frame
It send mode to be sent for unicast, and when the resource allocation message frame and the unicast data frames are sent simultaneously, the resource is set
The destination address of assignment messages frame and the destination address of the unicast data frames differ.
In the technical scheme, resource allocation message frame (unicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Set-up mode three：
In the above-mentioned technical solutions, it is preferable that the setting unit is specifically used for：In the hair of the resource allocation message frame
It send mode to be sent for multicast, and when the resource allocation message frame and the unicast data frames are sent simultaneously, the resource is set
The destination address of assignment messages frame and the destination address of the unicast data frames differ.
In the technical scheme, resource allocation message frame (multicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Wherein, under set-up mode three, it is preferable that the setting unit is specifically additionally operable to：In random generation and STA groups
Each STA the destination address that is all different of MAC Address, and the destination address generated at random is allocated to described each
STA；Or
The destination address of the resource allocation message frame is determined based on following formula：Destination address=the MAC1||MAC2|
|……||MACn, wherein MACnIndicate the MAC Address of n-th of STA in STA groups.
According to the third aspect of the invention we, it is also proposed that a kind of wireless access point, including：Such as any of the above-described technical solution
Described in WLAN communication device.
By above technical scheme, the reasonable setting to the destination address of resource allocation message frame is realized, and then can
Ensure OFDMA technologies being applied in 802.11ax, improves region handling capacity indirectly.
Description of the drawings
Fig. 1 shows the flow diagram that resource allocation message frame is sent in the form of the first multicast；
Fig. 2 shows the flow diagrams that resource allocation message frame is sent in the form of unicast；
Fig. 3 shows the flow diagram that resource allocation message frame is sent in the form of second of multicast；
Fig. 4 shows the form schematic diagram of resource allocation message frame；
Fig. 5 shows the schematic flow diagram of the communication means of WLAN according to an embodiment of the invention；
Fig. 6 shows the schematic block diagram of the communication device of WLAN according to an embodiment of the invention.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 5 shows the schematic flow diagram of the communication means of WLAN according to an embodiment of the invention.
As shown in figure 5, the communication means of WLAN according to an embodiment of the invention, including：Step 502, it generates
Resource allocation message frame, and determine that the sending method of the resource allocation message frame is that unicast transmission or multicast are sent, and are determined
The order of transmission of the resource allocation message frame and unicast data frames；Step 504, according to the transmission of the resource allocation message frame
The order of transmission of mode, the destination address of the unicast data frames and the resource allocation message frame and the unicast data frames,
The destination address of the resource allocation message frame is set；Step 506, the resource allocation message frame is sent.
In the technical scheme, pass through the sending method according to resource allocation message frame (i.e. above-mentioned trigger frame), unicast number
According to the destination address and resource allocation message frame and the order of transmission of unicast data frames of frame, the mesh of resource allocation message frame is set
Mark address, enabling the destination address of resource allocation message frame is set according to actual scene, to ensure that STA is receiving resource
It can determine whether itself is connecing for resource allocation message frame according to the destination address of resource allocation message frame when assignment messages frame
Receiving end realizes the reasonable setting to the destination address of resource allocation message frame, and then can ensure OFDMA technologies being applied to
In 802.11ax, region handling capacity is improved indirectly.
Wherein, the set-up mode of the destination address of resource allocation message frame includes following several：
Set-up mode one：
In the above-mentioned technical solutions, it is preferable that the step of destination address of the resource allocation message frame is arranged specifically is wrapped
It includes：It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame is in the unicast number
When starting to send at the time of being sent completely according to frame, the destination address of the resource allocation message frame and the unicast data frames are set
Destination address it is identical.
In the technical scheme, resource allocation message frame (unicast transmission) is continuously transmitted with unicast data frames, that is, is existed
After unicast data frames are sent, resource allocation message frame is and then sent, then the destination address of resource allocation message frame is arranged
It is identical as the destination address of unicast data frames.
Set-up mode two：
In the above-mentioned technical solutions, it is preferable that the step of destination address of the resource allocation message frame is arranged specifically is wrapped
It includes：It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together.
In the technical scheme, resource allocation message frame (unicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Set-up mode three：
In the above-mentioned technical solutions, it is preferable that the step of destination address of the resource allocation message frame is arranged specifically is wrapped
It includes：It is sent for multicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together.
In the technical scheme, resource allocation message frame (multicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Wherein, under set-up mode three, it is preferable that the step of destination address of the resource allocation message frame is arranged is specific
Further include：It is random generate the destination address being all different with the MAC Address of each STA in STA groups, and will generate at random
The destination address is allocated to each STA；Or
The destination address of the resource allocation message frame is determined based on following formula：Destination address=the MAC1||MAC2|
|……||MACn, wherein MACnIndicate the MAC Address of n-th of STA in STA groups.
Fig. 6 shows the schematic block diagram of the communication device of WLAN according to an embodiment of the invention.
As shown in fig. 6, the communication device 600 of WLAN according to an embodiment of the invention, including：Generation unit
602, setting unit 604 and transmission unit 606.
Wherein, generation unit 602 for generating resource allocation message frame, and determine the hair of the resource allocation message frame
It is that unicast transmission or multicast are sent, and determine the order of transmission of the resource allocation message frame and unicast data frames to send mode；If
Unit 604 is set, for according to the sending method of the resource allocation message frame, the destination address of the unicast data frames and described
The destination address of the resource allocation message frame is arranged in the order of transmission of resource allocation message frame and the unicast data frames；Hair
Unit 606 is sent, for sending the resource allocation message frame.
In the technical scheme, pass through sending method, the destination address of unicast data frames according to resource allocation message frame
The destination address of resource allocation message frame is set with resource allocation message frame and the order of transmission of unicast data frames, enabling
The destination address of resource allocation message frame is set according to actual scene, to ensure STA energy when receiving resource allocation message frame
It is enough according to the destination address of resource allocation message frame determine itself whether be resource allocation message frame receiving terminal, realize to money
The reasonable setting of the destination address of source assignment messages frame, and then can ensure OFDMA technologies being applied in 802.11ax, indirectly
Improve region handling capacity.
Wherein, the set-up mode of the destination address of resource allocation message frame includes following several：
Set-up mode one：
In the above-mentioned technical solutions, it is preferable that the setting unit 604 is specifically used for：In the resource allocation message frame
Sending method be that unicast is sent, and the resource allocation message frame starts to send out at the time of the unicast data frames are sent completely
When sending, the destination address that the resource allocation message frame is arranged is identical as the destination address of the unicast data frames.
In the technical scheme, resource allocation message frame (unicast transmission) is continuously transmitted with unicast data frames, that is, is existed
After unicast data frames are sent, resource allocation message frame is and then sent, then the destination address of resource allocation message frame is arranged
It is identical as the destination address of unicast data frames.
Set-up mode two：
In the above-mentioned technical solutions, it is preferable that the setting unit 604 is specifically used for：In the resource allocation message frame
Sending method be that unicast is sent, and when the resource allocation message frame and the unicast data frames are sent simultaneously, described in setting
The destination address of resource allocation message frame and the destination address of the unicast data frames differ.
In the technical scheme, resource allocation message frame (unicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Set-up mode three：
In the above-mentioned technical solutions, it is preferable that the setting unit 604 is specifically used for：In the resource allocation message frame
Sending method be that multicast is sent, and when the resource allocation message frame and the unicast data frames are sent simultaneously, described in setting
The destination address of resource allocation message frame and the destination address of the unicast data frames differ.
In the technical scheme, resource allocation message frame (multicast transmission) is sent simultaneously with unicast data frames, that is, is provided
The destination address and unicast data frames of resource allocation message frame is then arranged in source assignment messages frame and unicast data frames transmitted in parallel
Destination address differs.
Wherein, under set-up mode three, it is preferable that the setting unit 604 is specifically additionally operable to：It is random to generate and STA groups
The destination address that the MAC Address of each STA in group is all different, and the destination address generated at random is allocated to described
Each STA；Or
The destination address of the resource allocation message frame is determined based on following formula：Destination address=the MAC1||MAC2|
|……||MACn, wherein MACnIndicate the MAC Address of n-th of STA in STA groups.
The invention also provides a kind of wireless access point (not shown)s, including：WLAN as shown in FIG. 6
Communication device 600.
Technical scheme of the present invention is described in detail above in association with attached drawing, it is contemplated that at present not to the target of trigger frame
(i.e. A1) provides relevant definition for location.Therefore, the present invention proposes a kind of communication plan of new WLAN, realizes pair
The reasonable setting of the destination address of resource allocation message frame, and then can ensure OFDMA technologies being applied in 802.11ax,
It connects and improves region handling capacity.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of communication means of WLAN, which is characterized in that including：
Resource allocation message frame is generated, and determines that the sending method of the resource allocation message frame is that unicast transmission or group are broadcast
It send, and determines the order of transmission of the resource allocation message frame and unicast data frames；
Disappeared according to the sending method of the resource allocation message frame, the destination address of the unicast data frames and the resource allocation
The order of transmission for ceasing frame and the unicast data frames, is arranged the destination address of the resource allocation message frame；
Send the resource allocation message frame；
Wherein, the step of destination address of the resource allocation message frame is arranged specifically includes：
It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame is in the unicast number
When starting to send at the time of being sent completely according to frame, the destination address of the resource allocation message frame and the unicast data frames are set
Destination address it is identical；Or
It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together；Or
It is sent for multicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together.
2. the communication means of WLAN according to claim 1, which is characterized in that the resource allocation message is arranged
The step of destination address of frame further includes specifically：
It is random to generate the destination address being all different with the MAC Address of each STA in STA groups, and the institute that generated at random
It states destination address and is allocated to each STA；Or
The destination address of the resource allocation message frame is determined based on following formula：
Destination address=the MAC1||MAC2||……||MACn, wherein MACnWith indicating in STA groups the MAC of n-th of STA
Location.
3. a kind of communication device of WLAN, which is characterized in that including：
Generation unit for generating resource allocation message frame, and determines that the sending method of the resource allocation message frame is unicast
It sends or multicast is sent, and determine the order of transmission of the resource allocation message frame and unicast data frames；
Setting unit, for according to the sending method of the resource allocation message frame, the destination address of the unicast data frames and
The order of transmission of the resource allocation message frame and the unicast data frames, the target of the resource allocation message frame is set
Location；
Transmission unit, for sending the resource allocation message frame；
Wherein, the setting unit is specifically used for：
It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame is in the unicast number
When starting to send at the time of being sent completely according to frame, the destination address of the resource allocation message frame and the unicast data frames are set
Destination address it is identical；Or
It is sent for unicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together；Or
It is sent for multicast in the sending method of the resource allocation message frame, and the resource allocation message frame and the unicast number
When being sent simultaneously according to frame, the destination addresses of destination address that the resource allocation message frame is set and the unicast data frames not phase
Together.
4. the communication device of WLAN according to claim 3, which is characterized in that the setting unit is specifically also used
In：
It is random to generate the destination address being all different with the MAC Address of each STA in STA groups, and the institute that generated at random
It states destination address and is allocated to each STA；Or
The destination address of the resource allocation message frame is determined based on following formula：
Destination address=the MAC1||MAC2||……||MACn, wherein MACnWith indicating in STA groups the MAC of n-th of STA
Location.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102833837A (en) * | 2012-09-24 | 2012-12-19 | 东莞宇龙通信科技有限公司 | Data communication device and data communication method |
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| US9544914B2 (en) * | 2013-11-19 | 2017-01-10 | Intel IP Corporation | Master station and method for HEW communication using a transmission signaling structure for a HEW signal field |
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| CN102833837A (en) * | 2012-09-24 | 2012-12-19 | 东莞宇龙通信科技有限公司 | Data communication device and data communication method |
Non-Patent Citations (1)
| Title |
|---|
| Broadcast and Unicast (Trigger) in DL MU;Liwen Chu，et.al.;《802.11-15/0831r2》;20150712;正文第8-13页 * |
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