CN105025491B - A kind of network allocation vector setting method and equipment - Google Patents
A kind of network allocation vector setting method and equipment Download PDFInfo
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- CN105025491B CN105025491B CN201410318471.7A CN201410318471A CN105025491B CN 105025491 B CN105025491 B CN 105025491B CN 201410318471 A CN201410318471 A CN 201410318471A CN 105025491 B CN105025491 B CN 105025491B
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Abstract
The embodiment of the invention discloses a kind of network allocation vector setting methods, include: in first time period first kind equipment judge whether there is at least two Second Type equipment and communicate each other, if, the received signal strength indication value of at least two Second Types equipment is then obtained, and the network allocation vector being arranged in the first time period is busy；The first kind equipment adjusts the transmission power communicated with target device according to the received signal strength indication value in second time period, and the network allocation vector being arranged in the second time period is not busy.Correspondingly, the embodiment of the invention also discloses a kind of network allocation vectors, and equipment is arranged.Using the embodiment of the present invention, the availability of frequency spectrum is improved, in turn, improves region handling capacity.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of network allocation vector setting methods and equipment.
Background technique
With the progress of Information and Communication Technology, various wireless communication techniques have been developed recently.In these wireless communications
In technology, WLAN (WLAN) is that one kind can be by using portable terminal (such as intelligent mobile terminal, plate electricity
Brain, portable media player etc.) in family or enterprise or provide special services region in wirelessly on
The technology of net, wherein Wi-Fi (wireless fidelity, Wireless Fidelity) is a standard in WLAN.
Due to there are co-channel interference in existing Wi-Fi technology, in OBSS (overlapping basic
Service set, overlapping basic service set) in when some site STA is communicated with access point AP, other equipment can will
The NAV (Network Allocation Vector, network allocation vector) of own terminal is set as busy, and then not can be carried out
Communication, reduces the availability of frequency spectrum.
Summary of the invention
The embodiment of the invention provides a kind of network allocation vector setting method and equipment, and the availability of frequency spectrum can be improved.
First aspect of the embodiment of the present invention provides a kind of network allocation vector setting method, comprising:
First kind equipment judges whether there is at least two Second Type equipment and communicates each other in first time period,
If so, obtaining the received signal strength indication value of at least two Second Types equipment, and the first time period is set
Interior network allocation vector is busy, wherein the first kind equipment supports transmission power control mechanism and receiver sensitive
Controlling mechanism is spent, the Second Type equipment supports or do not support transmission power control mechanism and receiver sensitivity to control machine
System；
The first kind equipment is adjusted according to the received signal strength indication value and is set with target in second time period
The standby transmission power communicated, and the network allocation vector being arranged in the second time period is not busy.
In the first possible implementation of the first aspect, further includes:
At least two Second Types equipment is communicated in the first time period and in the second time period.
In the second possible implementation of the first aspect, the second time period is arranged in the first kind equipment
After the interior network allocation vector is not busy, further includes:
The first kind equipment is after waiting at least one time slot, according to the transmission power of the adjustment and institute
Target device is stated to be communicated.
The possible implementation of second with reference to first aspect, in the third possible implementation, between the time
Gap includes SIFS or DIFS.
In a fourth possible implementation of the first aspect, the first kind equipment is strong according to the reception signal
Degree indicated value adjusts the transmission power communicated with target device
The first kind equipment obtains maximum value in the received signal strength indication value；
The first kind equipment obtains between the first preset signals emissive porwer and the maximum value acquired
Difference, and the transmission power communicated with the target device is taked the difference as, the first preset signals transmitting is strong
Degree is the signal transmission power that the first kind equipment is communicated before adjusting transmission power with the target device.
With reference to first aspect or first aspect the first to any one possible implementation in the 4th kind, at the 5th kind
In possible implementation, before the target device is communicated with the first kind equipment, further includes:
The target device receives the signal of at least two Second Type communication between devices and obtains the signal
Received signal strength indication value, and obtain the maximum value in the received signal strength indication value；
The target device receives signal transmitted by the first kind equipment and obtains the first kind equipment
Received signal strength indication value；
If the maximum value is less than the received signal strength indication value of the first kind equipment, the target device is obtained
The difference between the first preset signals emissive porwer and the maximum value is taken, and is taked the difference as and the first kind
The transmission power that type equipment is communicated.
The 5th kind of possible implementation with reference to first aspect, in a sixth possible implementation, further includes:
If the received signal strength indication value that the target device receives the first kind equipment is less than or equal to institute
Maximum value is stated, then the target device is not responding to the communication of the first kind equipment.
The 6th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation, further includes:
If the target device is not responding to the communication of the first kind equipment, first kind equipment equipment again
The network allocation vector is busy.
Correspondingly, second aspect of the embodiment of the present invention additionally provides a kind of network allocation vector setting equipment, comprising:
Signal strength indication value obtains module, for judging in first time period with the presence or absence of at least two Second Types
Equipment communicates each other, if so, obtaining the received signal strength indication value of at least two Second Types equipment, wherein
The first kind equipment supports transmission power control mechanism and receiver sensitivity controlling mechanism, the Second Type equipment branch
Hold or do not support transmission power control mechanism and receiver sensitivity controlling mechanism；
First power regulation module is used in second time period according to received signal strength indication value adjustment and mesh
The transmission power that marking device is communicated；
Setup module, the network allocation vector for being arranged in the first time period are busy；
The setup module, it is not busy for being also used to be arranged the network allocation vector in the second time period.
In the first possible implementation of the second aspect, further includes:
At least two Second Types equipment is communicated in the first time period and in the second time period.
In a second possible implementation of the second aspect, further includes:
Communication module is not for the network allocation vector in the second time period to be arranged in the setup module
After busy, after waiting at least one time slot, according to first power regulation module adjustment transmission power with
The target device is communicated.
In conjunction with second of possible implementation of second aspect, in the third possible implementation, between the time
Gap includes SIFS or DIFS.
In the fourth possible implementation of the second aspect, first power regulation module includes:
Comparing unit, for obtaining maximum value in the received signal strength indication value；
Power adjustment unit, for obtaining between the first preset signals emissive porwer and the maximum value acquired
Difference, and the transmission power communicated with the target device is taked the difference as, the first preset signals transmitting is strong
Degree is the signal transmission power that the first kind equipment is communicated before adjusting transmission power with the target device.
In conjunction with it is second aspect or second aspect the first to possible implementation any in the 4th kind, at the 5th kind
In possible implementation, the target device supports transmission power control mechanism and receiver sensitivity controlling mechanism, described
Target device includes:
First signal strength indication value obtains module, for receiving the letter of at least two Second Type communication between devices
Number and obtain the received signal strength indication value of the signal, and obtain the maximum value in the received signal strength indication value；
Second signal strength indicator value obtains module, for receiving signal and acquisition transmitted by the first kind equipment
The received signal strength indication value of the first kind equipment；
Second power regulation module, if it is small to obtain maximum value acquired in module for first signal strength indication value
The received signal strength indication value of first kind equipment acquired in module is obtained in the second signal strength indicator value, then is obtained
The difference between the first preset signals emissive porwer and the maximum value is taken, and is taked the difference as and the first kind
The transmission power that type equipment is communicated.
In conjunction with the 5th kind of possible implementation of second aspect, in a sixth possible implementation, further includes:
Second power regulation module, if being also used to the second signal strength indicator value obtains acquired in module the
The received signal strength indication value of one type equipment is less than or equal to first signal strength indication value and obtains acquired in module
Maximum value, then be not responding to the communication of the first kind equipment.
In conjunction with the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation, the equipment mould
Block is also used to:
If the target device is not responding to the communication of own terminal, network allocation vector described in equipment is busy again.
The embodiment of the present invention, first kind equipment can obtain at least two Second Type equipment in first time period
Received signal strength indication value, and the network allocation vector being arranged in first time period is busy, the basis in second time period
Received signal strength indication value adjusts the transmission power communicated with target device, and the network point being arranged in second time period
With vector be it is not busy, in turn, first kind equipment can be communicated in second time period with target device, improve frequency
Compose utilization rate.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of network allocation vector setting method provided in an embodiment of the present invention；
Fig. 2 is the flow diagram of another network allocation vector setting method provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of network allocation vector setting equipment provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the first power regulation module provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of target device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is a kind of process signal of network allocation vector setting method provided in an embodiment of the present invention
Figure.Network allocation vector setting method provided in an embodiment of the present invention may be implemented in intelligent mobile terminal, tablet computer, portable
Formula multimedia player etc. is supported in the equipment of transmission power control.Network allocation vector setting side provided in an embodiment of the present invention
Method is applied to WLAN, and the embodiment of the present invention is described from first kind equipment angle.This implementation as shown in Figure 1
Example in network allocation vector setting procedure may include:
S110, it is mutual to judge whether there is at least two Second Type equipment for first kind equipment in first time period
Communication, if so, obtaining the received signal strength indication value of at least two Second Types equipment, and when setting described first
Between network allocation vector in section be busy, wherein the first kind equipment supports transmission power control mechanism and receiver
Sensitivity controlling mechanism, the Second Type equipment support or do not support transmission power control mechanism and receiver sensitivity to control
Mechanism.
When first kind equipment needs to communicate, first kind equipment can decide whether that there are at least two Second Types
Equipment is communicating each other, if first kind equipment receives the signal of at least two Second Types equipment, the first kind
Equipment then can be determined that there are at least two Second Types equipment to communicate, and based on the received described in signal acquisition
The received signal strength indication value of at least two Second Type equipment, first kind equipment get at least two second class
Time used in the received signal strength indication value of type equipment is the first time period, and first kind equipment is in the first time
Set busy for network allocation vector in section.
It is assumed that there are two Second Type equipment to be in communication with each other, respectively STA1 and STA2, first kind equipment is
STA3, STA3 can receive the signal that STA1 and STA2 is in communication with each other transmission, so that the signal of STA1 transmitting obtains based on the received
Take STA1 received signal strength indication value RSSI1 and based on the received STA2 transmitting signal acquisition STA2 reception signal it is strong
Spend indicated value RSSI2.
After STA3 gets the received signal strength indication value of STA1 and STA2, STA3 can be according to receiver sensitivity
Controlling mechanism improves the receiver sensitivity of own terminal, is communicating STA3 perception less than STA1 and STA2, in turn, makes
STA3 is perceived less than channel busy.
S120, the first kind equipment adjusts and mesh according to the received signal strength indication value in second time period
The transmission power that marking device is communicated, and the network allocation vector being arranged in the second time period is not busy.
Specifically, network point is then arranged in STA3 when STA3 gets the received signal strength indication value of STA1 and STA2
With vector be it is not busy, and STA3 according to the received signal strength indication value adjustment with target device (being assumed to be STA4) into
Signal transmission power needed for row communication, STA3 further can send signal to target device with the transmission power,
In, second time period is the temporal summation that STA3 adjusts transmission power and STA3 is communicated with STA4.
Network allocation vector of the STA3 in second time period be it is not busy, in turn, STA3 can be in second time period
It is communicated with STA4, for STA1 and STA2, because STA3 emits function in original signal according to the received signal strength indication value
Reduce certain transmission power on the basis of rate, the transmission power after reducing is made not cause to do to the communication of STA1 and STA2
Disturb, i.e. STA1 and STA2 in second time period can also with normal communication, therefore, in existing STA1 and STA2 in communication,
Other equipment improve the availability of frequency spectrum on the basis of cannot communicating, in turn, improve region handling capacity.
Wherein, at least two Second Types equipment carries out in the first time period and in the second time period
Communication.
Preferably, STA3 can obtain maximum value in the received signal strength indication value, then obtain the first default letter
Difference number between emissive porwer and the maximum value acquired, STA3 simultaneously take the difference as transmitting function adjusted
Rate is communicated with the STA4, the first preset signals emissive porwer be STA3 before adjusting transmission power with STA4 into
The signal transmission power of row communication, that is, above-mentioned primary penetrate signal power, it is assumed that RSSI1 > RSSI2, first is default
Signal emissive porwer is TPC, then difference of the STA3 transmission power adjusted communicated with STA4 between TPC and RSSI1
Value.
Wherein, STA3 can be after having adjusted the transmission power communicated with STA4, immediately with the transmission power
It is communicated with STA4；STA3 can also have adjusted the transmission power communicated with STA4 and then wait at least one
It time slot and then is communicated with the transmission power with STA4.
Optionally, the time slot may include SIFS or DIFS.SIFS and DIFS can provide different priorities
Access control, DIFS are distributed interframe gap, and priority is minimum, the time delay for async framing contention access；SIFS priority
Highest, the operation for needing to make an immediate response.
The embodiment of the present invention, first kind equipment can obtain at least two Second Type equipment in first time period
Received signal strength indication value, and the network allocation vector being arranged in first time period is busy, the basis in second time period
Received signal strength indication value adjusts the transmission power communicated with target device, and the network point being arranged in second time period
With vector be it is not busy, in turn, first kind equipment can be communicated in second time period with target device, it is described at least
Two Second Type equipment can also be communicated in second time period, improve the availability of frequency spectrum, and then improve region
Handling capacity.
Referring to Fig. 2, Fig. 2 is a kind of process signal of network allocation vector setting method provided in an embodiment of the present invention
Figure.Network allocation vector setting method provided in an embodiment of the present invention may be implemented in intelligent mobile terminal, tablet computer, portable
Formula multimedia player etc. is supported in the equipment of transmission power control.Network allocation vector setting side provided in an embodiment of the present invention
Method is applied to WLAN, and the embodiment of the present invention is described from first kind equipment and target device angle.Such as Fig. 2
Network allocation vector setting procedure in shown the present embodiment may include:
S210, it is mutual to judge whether there is at least two Second Type equipment for first kind equipment in first time period
Communication, if so, obtaining the received signal strength indication value of at least two Second Types equipment, and when setting described first
Between network allocation vector in section be busy, wherein the first kind equipment supports transmission power control mechanism and receiver
Sensitivity controlling mechanism, the Second Type equipment support or do not support transmission power control mechanism and receiver sensitivity to control
Mechanism.
When first kind equipment needs to communicate, first kind equipment can decide whether that there are at least two Second Types
Equipment is communicating each other, if first kind equipment receives the signal of at least two Second Types equipment, the first kind
Equipment then can be determined that there are at least two Second Types equipment to communicate, and based on the received described in signal acquisition
The received signal strength indication value of at least two Second Type equipment, first kind equipment get at least two second class
Time used in the received signal strength indication value of type equipment is the first time period, and first kind equipment is in the first time
Set busy for network allocation vector in section.
It is assumed that there are two Second Type equipment to be in communication with each other, respectively STA1 and STA2, first kind equipment is
STA3, STA3 can receive the signal that STA1 and STA2 is in communication with each other transmission, so that the signal of STA1 transmitting obtains based on the received
Take STA1 received signal strength indication value RSSI1 and based on the received STA2 transmitting signal acquisition STA2 reception signal it is strong
Spend indicated value RSSI2.
S220, the first kind equipment adjusts and mesh according to the received signal strength indication value in second time period
The transmission power that marking device is communicated, and the network allocation vector being arranged in the second time period is not busy.
Specifically, network point is then arranged in STA3 when STA3 gets the received signal strength indication value of STA1 and STA2
With vector be it is not busy, and STA3 according to the received signal strength indication value adjustment with target device (being assumed to be STA4) into
Signal transmission power needed for row communication, STA3 further can send signal to target device with the transmission power,
In, second time period is the temporal summation that STA3 adjusts transmission power and STA3 is communicated with STA4.
Preferably, STA3 can obtain maximum value in the received signal strength indication value, then obtain the first default letter
Difference number between emissive porwer and the maximum value acquired, STA3 simultaneously take the difference as transmitting function adjusted
Rate is communicated with the STA4, the first preset signals emissive porwer be STA3 before adjusting transmission power with STA4 into
The signal transmission power of row communication, that is, above-mentioned primary penetrate signal power, it is assumed that RSSI1 > RSSI2, first is default
Signal emissive porwer is TPC, then difference of the STA3 transmission power adjusted communicated with STA4 between TPC and RSSI1
Value.
S230, the first kind equipment is after waiting at least one time slot, according to the transmitting function of the adjustment
Rate is communicated with the target device.
In second time period, STA3 is communicated with transmission power adjusted with STA4, makes STA1 and STA2 at this
It can be carried out normal communication in second time period, therefore, in existing STA1 and STA2 in communication, what other equipment cannot communicate
On the basis of, improve the availability of frequency spectrum.
It should be pointed out that in embodiments of the present invention, STA3 have adjusted the transmission power that is communicated with STA4 it
Afterwards, it then waits at least one time slot and then is communicated with the transmission power with STA4, in other alternative embodiments
In, STA3 can be carried out immediately with the transmission power and STA4 after having adjusted the transmission power communicated with STA4
Communication.
Optionally, the time slot may include SIFS or DIFS.SIFS and DIFS can provide different priorities
Access control, DIFS are distributed interframe gap, and priority is minimum, the time delay for async framing contention access；SIFS priority
Highest, the operation for needing to make an immediate response.
S240, the target device receive the signal of at least two Second Type communication between devices and obtain the letter
Number received signal strength indication value, and obtain the maximum value in the received signal strength indication value.
Wherein, the target device supports transmission power control mechanism and receiver sensitivity controlling mechanism.
S250, the target device receive signal transmitted by the first kind equipment and obtain the first kind and set
Standby received signal strength indication value.
It should be noted that STA4 first carries out step S240 in the embodiment of the present invention, then step S250 is executed, at other
In alternative embodiment, STA4 can first carry out step S240, then execute step S240, alternatively, be performed simultaneously step S240 and
S250, the present invention is without limitation.
S260, if the maximum value is less than the received signal strength indication value of the first kind equipment, the target
Equipment obtains the difference between the first preset signals emissive porwer and the maximum value, and after taking the difference as adjustment
Transmission power communicated with the first kind equipment.
It is assumed that the received signal strength indication value of the received STA1 of STA4 is RSSI1 ', the reception of the received STA2 of STA4
Signal strength indication value is RSSI2 ', wherein RSSI1 ' is unequal with RSSI1, and RSSI2 ' is unequal with RSSI2, and STA4 is received
The received signal strength indication value of STA3 be RSSI3, if RSSI1 ' > RSSI2 ', STA4 can carry out RSSI1 ' and RSSI3
Compare, if RSSI1 ' is less than RSSI3, that is to say, that STA1 and STA2 is less than useful signal, i.e. STA3 to the interference of STA4
The signal of transmitting, STA4 is then using the difference between the first preset signals emissive porwer and the maximum value as adjusted
Transmission power, then difference of the STA4 transmission power adjusted communicated with STA3 between TPC and RSSI1 '.
Further, if the received signal strength indication value that the target device receives the first kind equipment is less than
Or being equal to the maximum value, then the target device is not responding to the communication of the first kind equipment.In the specific implementation, if
RSSI3 be less than or equal to RSSI1 ' and RSSI2 ' in maximum value, then illustrate STA4 at a distance from STA3 be greater than with STA1 or
The distance of STA2, that is to say, that when STA4 replys confirmation message frame or data frame to STA3 with transmission power adjusted, also have
STA1 or STA2 may be interfered, therefore, STA4 detect RSSI3 be less than or equal to RSSI1 ' and RSSI2 ' in most
When big value, STA4 is not responding to the communication of STA3.
Wherein, if the target device is not responding to the communication of the first kind equipment, the first kind equipment weight
Network allocation vector described in new equipment is busy.
The embodiment of the present invention, first kind equipment can obtain at least two Second Type equipment in first time period
Received signal strength indication value, and the network allocation vector being arranged in first time period is busy, the basis in second time period
Received signal strength indication value adjusts the transmission power communicated with target device, and the network point being arranged in second time period
With vector be it is not busy, in turn, first kind equipment can be communicated in second time period with target device, and target is set
It is standby signal strength indication value to adjust the transmitting function communicated with the first kind equipment based on the received
Rate interfere first kind equipment and target device will not all to the communication of at least two Second Types equipment, into
One step effectively raises the availability of frequency spectrum.
Referring to Fig. 3, Fig. 3 is a kind of structural representation of network allocation vector setting equipment provided in an embodiment of the present invention
Figure.Network allocation vector provided in an embodiment of the present invention setting equipment may include intelligent mobile terminal, tablet computer, portable
The equipment of the support transmission power control such as multimedia player.Network allocation vector in the embodiment of the present invention as shown in Figure 3 is set
Installing standby 30 at least may include that signal strength indication value obtains module 31, the first power regulation module 32 and setup module
33, in which:
Signal strength indication value obtains module 31, for judging in first time period with the presence or absence of at least two second classes
Type equipment communicates each other, if so, the received signal strength indication value of at least two Second Types equipment is obtained,
In, the first kind equipment supports transmission power control mechanism and receiver sensitivity controlling mechanism, the Second Type to set
It is standby to support or do not support transmission power control mechanism and receiver sensitivity controlling mechanism.
First power regulation module 32, in second time period according to the received signal strength indication value adjustment with
The transmission power that target device is communicated.
Preferably, first power regulation module 32 can further include comparing unit 321 and power as shown in Figure 4
Adjustment unit 322, in which:
Comparing unit 321, for obtaining maximum value in the received signal strength indication value；Power adjustment unit 322,
For obtaining the difference between the first preset signals emissive porwer and the maximum value acquired, and take the difference as
The transmission power communicated with the target device, the first preset signals emissive porwer are that the first kind equipment exists
The signal transmission power communicated before adjustment transmission power with the target device.
In the specific implementation, comparing unit 321 can obtain maximum value, power tune in the received signal strength indication value
Whole unit 322 obtains the difference between the first preset signals emissive porwer and the maximum value acquired again, and will be described
Difference is communicated as transmission power adjusted with the target device, it is assumed that the first preset signals emissive porwer is
TPC, and there are two Second Type equipment to communicate, respectively STA1 and STA2, if signal strength indication value obtains module
31 received signal strength indication values for getting STA1 are RSSI1, and the received signal strength indication value of STA2 is RSSI2, and is deposited
In RSSI1 > RSSI2, then the transmission power adjusted communicated with STA4 of power adjustment unit 322 be TPC and RSSI1 it
Between difference.
Setup module 33, the network allocation vector for being arranged in the first time period are busy；The setup module
33, it is not busy for being also used to be arranged the network allocation vector in the second time period.
In the specific implementation, setup module 33 is then needed network point when signal strength indication value obtains module 31 and executes
It is busy with vector；When the first power regulation module 32 executes, it is not that the network allocation vector, which is then arranged, in setup module 33
It is busy, and then equipment of itself is enable to be communicated with target device.Wherein, at least two Second Types equipment is described
It is communicated in first time period and in the second time period.
Further, the network allocation vector setting equipment 30 can also include communication module 34, for setting described
It sets after the network allocation vector that module 33 is arranged in the second time period is not busy, is waiting at least one time
After gap, communicated according to the transmission power that first power regulation module 32 adjusts with the target device.Wherein,
The time slot includes SIFS or DIFS.
Optionally, the communication module 34 can be also used for being arranged in the second time period in the setup module 33
After the network allocation vector is not busy, immediately according to the transmission power of first power regulation module 32 adjustment and institute
Target device is stated to be communicated.
Wherein, the structural schematic diagram of the target device can be as shown in figure 5, the target device may include intelligent sliding
The equipment that dynamic terminal, tablet computer, portable media player etc. support transmission power control.As shown in figure 5, the target
Equipment 50 at least may include the first signal strength indication value obtain module 51, second signal strength indicator value obtain module 52 with
And second power regulation module 53, in which:
First signal strength indication value obtains module 51, for receiving at least two Second Type communication between devices
Signal and the received signal strength indication value for obtaining the signal, and obtain the maximum in the received signal strength indication value
Value, wherein the Second Type equipment supports or do not support the transmission power control mechanism and receiver sensitivity to control
Mechanism.
Second signal strength indicator value obtains module 52, for receiving signal transmitted by the first kind equipment and obtaining
Take the received signal strength indication value of the first kind equipment, wherein the first kind equipment supports transmission power control
Mechanism and receiver sensitivity controlling mechanism.
Second power regulation module 53, if obtaining maximum acquired in module 51 for first signal strength indication value
Value is less than the received signal strength indicator that the second signal strength indicator value obtains first kind equipment acquired in module 52
Value, then obtain the difference between the first preset signals emissive porwer and the maximum value, and takes the difference as and institute
State the transmission power that first kind equipment is communicated.
Optionally, second power regulation module 53, if being also used to the second signal strength indicator value obtains module
The received signal strength indication value of first kind equipment acquired in 52 is less than or equal to first signal strength indication value and obtains
Maximum value acquired in modulus block 51 is then not responding to the communication of the first kind equipment.
The setup module 33, if being also used to the communication that the target device is not responding to own terminal, equipment institute again
It is busy for stating network allocation vector.
As an alternative embodiment, the network allocation vector setting equipment 30 can also include target device 50
Device, that is to say, that the function of the first kind equipment had both may be implemented in network allocation vector setting equipment, can also
To realize the function of target device.
The embodiment of the present invention, signal strength indication value obtains module can obtain at least two second in first time period
The received signal strength indication value of type equipment, and setup module setting first time period in network allocation vector be it is busy,
What the first power regulation module was communicated according to received signal strength indication value adjustment with target device in second time period
Transmission power, and the setup module setting second time period in network allocation vector be it is not busy, make at least two second
In communication, other equipment can also communicate type equipment, improve the availability of frequency spectrum, and then improve region handling capacity.
It should be noted that in the above-described embodiments, all emphasizing particularly on different fields to the description of each embodiment, in some embodiment
The part being not described in, reference can be made to the related descriptions of other embodiments.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, and related actions and modules is not necessarily of the invention
Necessary to embodiment.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module or unit in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.
Module described in the embodiment of the present invention or unit can pass through universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit), or pass through ASIC (Application Specific Integrated
Circuit, specific integrated circuit) Lai Shixian.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (14)
1. a kind of network allocation vector setting method characterized by comprising
First kind equipment judges whether there is at least two Second Type equipment and communicates each other in first time period, if
It is then to obtain the received signal strength indication value of at least two Second Types equipment, and be arranged in the first time period
Network allocation vector be busy, wherein the first kind equipment supports transmission power control mechanism and receiver sensitivity
Transmission power control mechanism and receiver sensitivity controlling mechanism are supported or do not supported to controlling mechanism, the Second Type equipment；
If the first kind equipment supports receiver sensitivity controlling mechanism, itself can be reduced by characterizing the first kind equipment
Receiver sensitivity so that the first kind device-aware is being communicated less than at least two Second Types equipment；
In second time period the first kind equipment adjusted according to the received signal strength indication value and target device into
The transmission power of row communication, and the network allocation vector being arranged in the second time period is not busy；Described at least two
A Second Type equipment is communicated in the first time period and in the second time period.
2. the method as described in claim 1, which is characterized in that the first kind equipment is arranged in the second time period
After the network allocation vector is not busy, further includes:
The first kind equipment is after waiting at least one time slot, according to the transmission power of the adjustment and the mesh
Marking device is communicated.
3. method according to claim 2, which is characterized in that the time slot includes SIFS or DIFS.
4. the method as claimed in claim 1, which is characterized in that the first kind equipment refers to according to the received signal strength
Indicating value adjusts the transmission power communicated with target device
The first kind equipment obtains maximum value in the received signal strength indication value；
The first kind equipment obtains the difference between the first preset signals emissive porwer and the maximum value acquired,
And the transmission power communicated with the target device is taked the difference as, the first preset signals emissive porwer is institute
State the signal transmission power that first kind equipment is communicated before adjusting transmission power with the target device.
5. method according to any of claims 1-4, which is characterized in that the target device and the first kind equipment
Before communication, further includes:
The target device receives the signal of at least two Second Type communication between devices and obtains the reception of the signal
Signal strength indication value, and obtain the maximum value in the received signal strength indication value；
The target device receives signal transmitted by the first kind equipment and obtains the reception of the first kind equipment
Signal strength indication value；
If the maximum value is less than the received signal strength indication value of the first kind equipment, the target device obtains the
Difference between one preset signals emissive porwer and the maximum value, and take the difference as with the first kind equipment into
The transmission power of row communication.
6. method as claimed in claim 5, which is characterized in that further include:
If the received signal strength indication value that the target device receives the first kind equipment be less than or equal to it is described most
Big value, then the target device is not responding to the communication of the first kind equipment.
7. method as claimed in claim 6, which is characterized in that further include:
If the target device is not responding to the communication of the first kind equipment, the first kind equipment resets described
Network allocation vector is busy.
8. system is arranged in a kind of network allocation vector characterized by comprising network allocation vector setting equipment and target are set
It is standby；Wherein, the network allocation vector setting equipment is first kind equipment, comprising:
Signal strength indication value obtains module, for judging in first time period with the presence or absence of at least two Second Type equipment
Communication each other, if so, obtaining the received signal strength indication value of at least two Second Types equipment, wherein described
First kind equipment supports transmission power control mechanism and receiver sensitivity controlling mechanism, the Second Type equipment support or
Transmission power control mechanism and receiver sensitivity controlling mechanism are not supported；If the first kind equipment supports receiver sensitive
Controlling mechanism is spent, then the receiver sensitivity of itself can be reduced by characterizing the first kind equipment, so that the first kind
Device-aware is being communicated less than at least two Second Types equipment；
First power regulation module is set for being adjusted in second time period according to the received signal strength indication value with target
The standby transmission power communicated；
Setup module, the network allocation vector for being arranged in the first time period are busy；
The setup module, it is not busy for being also used to be arranged the network allocation vector in the second time period；It is described extremely
Few two Second Type equipment are communicated in the first time period and in the second time period.
9. system as claimed in claim 8, which is characterized in that equipment is arranged in the network allocation vector further include:
Communication module is not busy for the network allocation vector in the second time period to be arranged in the setup module
Later, after waiting at least one time slot, according to first power regulation module adjustment transmission power with it is described
Target device is communicated.
10. system as claimed in claim 9, which is characterized in that the time slot includes SIFS or DIFS.
11. system as claimed in claim 8, which is characterized in that first power regulation module includes:
Comparing unit, for obtaining maximum value in the received signal strength indication value；
Power adjustment unit, for obtaining the difference between the first preset signals emissive porwer and the maximum value acquired
Value, and the transmission power communicated with the target device is taked the difference as, the first preset signals emissive porwer
The signal transmission power communicated before adjusting transmission power with the target device for the first kind equipment.
12. such as the described in any item systems of claim 8-11, which is characterized in that the target device supports transmission power control
Mechanism and receiver sensitivity controlling mechanism, the target device include:
First signal strength indication value obtains module, for receiving the signal of at least two Second Type communication between devices simultaneously
The received signal strength indication value of the signal is obtained, and obtains the maximum value in the received signal strength indication value；
Second signal strength indicator value obtains module, for receiving described in signal transmitted by the first kind equipment and acquisition
The received signal strength indication value of first kind equipment；
Second power regulation module, if obtaining maximum value acquired in module for first signal strength indication value is less than institute
The received signal strength indication value that second signal strength indicator value obtains first kind equipment acquired in module is stated, then obtains the
Difference between one preset signals emissive porwer and the maximum value, and take the difference as with the first kind equipment into
The transmission power of row communication.
13. system as claimed in claim 12, which is characterized in that the target device further include:
Second power regulation module, if being also used to the second signal strength indicator value obtains the first kind acquired in module
The received signal strength indication value of type equipment is less than or equal to first signal strength indication value and obtains acquired in module most
Big value, then be not responding to the communication of the first kind equipment.
14. system as claimed in claim 13, which is characterized in that the EM equipment module is also used to:
If the target device is not responding to the communication of own terminal, it is busy for resetting the network allocation vector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410318471.7A CN105025491B (en) | 2014-07-04 | 2014-07-04 | A kind of network allocation vector setting method and equipment |
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| CN201410318471.7A CN105025491B (en) | 2014-07-04 | 2014-07-04 | A kind of network allocation vector setting method and equipment |
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| CN105025491B true CN105025491B (en) | 2019-03-22 |
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| CN105101347B (en) * | 2014-07-29 | 2019-01-29 | 魅族科技（中国）有限公司 | A kind of communication means and equipment of Wireless LAN |
| US20220360543A1 (en) * | 2019-08-15 | 2022-11-10 | Beijing Xiaomi Mobile Software Co., Ltd. | Network allocation vector setting method and apparatus |
Citations (3)
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|---|---|---|---|---|
| CN102695201A (en) * | 2011-03-21 | 2012-09-26 | 华为技术有限公司 | Method, device and system for interference management |
| CN102769912A (en) * | 2012-07-16 | 2012-11-07 | 北京星网锐捷网络技术有限公司 | Message transmission method and device applied to WLAN (Wireless Local Area Network) as well as network equipment |
| CN103458491A (en) * | 2013-08-16 | 2013-12-18 | 福建星网锐捷网络有限公司 | Method and device for communicating between node and terminal in wireless local area network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695201A (en) * | 2011-03-21 | 2012-09-26 | 华为技术有限公司 | Method, device and system for interference management |
| CN102769912A (en) * | 2012-07-16 | 2012-11-07 | 北京星网锐捷网络技术有限公司 | Message transmission method and device applied to WLAN (Wireless Local Area Network) as well as network equipment |
| CN103458491A (en) * | 2013-08-16 | 2013-12-18 | 福建星网锐捷网络有限公司 | Method and device for communicating between node and terminal in wireless local area network |
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