CN104052511A - Disturbance control method of receiver, receiver and equipment - Google Patents
Disturbance control method of receiver, receiver and equipment Download PDFInfo
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- CN104052511A CN104052511A CN201410267011.6A CN201410267011A CN104052511A CN 104052511 A CN104052511 A CN 104052511A CN 201410267011 A CN201410267011 A CN 201410267011A CN 104052511 A CN104052511 A CN 104052511A
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Abstract
The embodiment of the invention provides a disturbance control method of a receiver, the receiver and equipment. The method comprises the steps that the current receiving sensitivity of the receiver is estimated; the difference value of the estimated receiving sensitivity and the currently-used receiving sensitivity of the receiver is determined; when the estimated receiving sensitivity is larger than the currently-used receiving sensitivity, and the absolute value of the difference value is larger than a preset sensitivity threshold value, within the adjustable range of the receiving sensitivity of the receiver, the currently-used receiving sensitivity of the receiver is enhanced, and disturbance of disturbance signals is reduced; when the estimated receiving sensitivity is smaller than the currently-used receiving sensitivity, and the absolute value of the difference value is larger than the preset sensitivity threshold value, within the adjustable range of the receiving sensitivity of the receiver, the currently-used receiving sensitivity of the receiver is reduced, and disturbance of the disturbance signals is reduced. Disturbance of the disturbance signals is lowered. The disturbance control method of the receiver, the receiver and the equipment relate to the technical field of wireless communications.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of interference control method, receiver and equipment of receiver.
Background technology
At present, WLAN (wireless local area network) (WLAN, Wireless Local Area Network) be no longer only initial a kind of easy network access mode, many important application of enterprise, are all deployed on wireless network gradually services such as voice, video, location.Even if common access to netwoks, user wishes that bandwidth is more high better.But taking 802.11 as basic WLAN, eating dishes without rice or wine is the common transmission medium of all devices.Along with the increase of deployment density, air interference problem is increasing on the impact of network service quality.But user does not but have reduction to the requirement of any wireless network services at all simultaneously, has proposed on the contrary more and more higher requirement.So, reduce the impact of disturbing in real network, ensure that the importance of the data transmission quality of high-quality just becomes increasingly conspicuous out.
In prior art, disturb the method for controlling mainly to comprise several as follows to WLAN:
The first, disturb control by conventional network optimization means:
In first method, manually wireless network made rational planning for and configure by network optimization means, for example: rational rate set, power and channel and bandwidth adjustment etc. are set.But network optimization is had relatively high expectations for technical staff's experience.Generally, network manager cannot be competent at, and can only be optimized by veteran network engineers.And concrete scene is depended in network optimization, need first to scene analysis, weigh the factor that causes network to experience variation, that derives and need distributes rationally, do not have a kind of blanket network means, therefore, rely on merely network optimization means still cannot solve the anti-interference problem of wireless network.
The second, manage (RRM, Radio Resource Management) management by radio frequency resource and disturb control:
In the second approach, by the radio frequency environment of real-time monitoring analysis periphery, automatically adjust radio-frequency channel and the power of access point (AP, Access Point) according to special algorithm, reduce signal between AP and disturb.The method of RRM can reduce air interference to a certain extent, but the in the situation that of intensive deployment, because channel resource is limited, even adjust through RRM, still can have serious adjacent frequency and co-channel interference.
Summary of the invention
The embodiment of the present invention provides a kind of interference control method, receiver and equipment of receiver, reduces the bad problem of air interference effect in order to solve the interference control method adopting in prior art wireless network.
Based on the problems referred to above, the interference control method of a kind of receiver that the embodiment of the present invention provides, comprising:
The current receiving sensitivity of estimation receiver;
Determine the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of estimating;
When the receiving sensitivity of estimation is greater than the receiving sensitivity of current use, and when the absolute value of described difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal;
When the receiving sensitivity of estimation is less than the receiving sensitivity of current use, and when the absolute value of described difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.
A kind of receiver that the embodiment of the present invention provides, comprising:
Estimation block, for estimating the current receiving sensitivity of receiver;
Determination module, for the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of definite described estimation block estimation;
Adjusting module, for be greater than the receiving sensitivity of current use when the receiving sensitivity of described estimation block estimation, and when the absolute value of the definite difference of described determination module is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal; When the receiving sensitivity of described estimation block estimation is less than the receiving sensitivity of current use, and when the absolute value of the definite difference of described determination module is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.
A kind of equipment that the embodiment of the present invention provides, comprises the above-mentioned receiver that the embodiment of the present invention provides.
The beneficial effect of the embodiment of the present invention comprises:
Interference control method, receiver and the equipment of a kind of receiver that the embodiment of the present invention provides, the current receiving sensitivity of estimation receiver; Determine the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of estimating; When the receiving sensitivity of estimation is greater than the receiving sensitivity of current use, and when the absolute value of this difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal; When the receiving sensitivity of estimation is less than the receiving sensitivity of current use, and when the absolute value of this difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.The interference control method of a kind of receiver that the embodiment of the present invention provides, by making receiver according to interference source situation, the receiving sensitivity that is receiver to jamproof key factor is carried out self adaptation adjustment, make receiver can not make because receiving sensitivity is too low normal packet be dropped, also can interference signal be around used as to normal packet because receiving sensitivity is too high receives, make receiver reach better AP transmitting-receiving performance, even the in the situation that of the intensive deployment of wireless network, also can correctly receive the normal packet that self should receive, reduce the interference of interference signal.
Brief description of the drawings
The flow chart of the interference control method of a kind of receiver that Fig. 1 provides for the embodiment of the present invention;
The flow chart of the interference control method of a kind of receiver that Fig. 2 provides for the embodiment of the present invention 1;
The decision model schematic diagram of the CCA thresholding that Fig. 3 provides for example in the embodiment of the present invention 1;
The structural diagrams intention of a kind of receiver that Fig. 4 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of interference control method, receiver and equipment of receiver, below in conjunction with Figure of description, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.And in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
The embodiment of the present invention provides a kind of interference control method of receiver, as shown in Figure 1, comprising:
The current receiving sensitivity of S101, estimation receiver.
Difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of S102, definite estimation.
S103, be greater than the receiving sensitivity of current use when the receiving sensitivity of estimation, and when the absolute value of described difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal.
S104, be less than the receiving sensitivity of current use when the receiving sensitivity of estimation, and when the absolute value of described difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.
Further, in the embodiment of the present invention, receiver can be for receiving and send by eating dishes without rice or wine the receiving system of the equipment of packet in wireless network, such as in wireless router for receive the device etc. of data by eating dishes without rice or wine.The receiving sensitivity (being typically expressed as a negative decibel millivolt/dBm (dBm) number) of receiver has defined receiver lowest signal intensity that can receive, that can normally work.That is to say, if Packet Generation side sends the receiving sensitivity that the signal strength signal intensity of packet is greater than or equal to receiver, receiver can receive and correctly resolve this packet so, be less than receiver sensitivity if Packet Generation side sends the signal strength signal intensity of packet, receiver cannot receive this packet so.Receiver sensitivity is high, can think that receiver is sensitiveer, and the signal strength signal intensity of the lowest signal that can receive is lower, and receiver sensitivity is low, can think that receiver is insensitive, and the signal strength signal intensity of the lowest signal that can receive is higher.The interference control method of the receiver that the embodiment of the present invention provides, from static state setting receiver receiving sensitivity is different based on experience value in prior art, has proposed to realize by the receiving sensitivity of adjustment receiver the interference control of receiver.That is to say, according to interference source situation, in real time the receiving sensitivity of receiver is carried out to self adaptation adjustment, make receiver can reach better AP transmitting-receiving performance, even the in the situation that of the intensive deployment of wireless network, the receiver with better AP transmitting-receiving performance can be used as interference signal normal data packet yet and receive, and normal data packet can be used as to interference signal and abandon, and has reduced the interference of interference signal.
Below in conjunction with accompanying drawing, method provided by the invention and relevant device are described in detail with specific embodiment.
Embodiment 1:
In the embodiment of the present invention 1, provide a kind of interference control method of receiver, as shown in Figure 2, specifically comprised the steps:
S201, determine that receiver receives the Packet Error Rate of packet in the first Preset Time section.
In this step, in receiver, can be provided with the register that receives packet Packet Error Rate in the first Preset Time section by eating dishes without rice or wine for adding up, can from this register, directly read the Packet Error Rate of the first Preset Time section inner receiver reception packet.
Further, the first Preset Time section can be set according to actual needs.
S202, determine that each terminal in the second Preset Time section sends the Mean Speed of upstream data bag to receiver.
In this step, in receiver, can a data block be set for each terminal, send transmission rate, the signal strength signal intensity etc. of upstream data bag for preserving this terminal.Can add up each terminal in the second Preset Time section and send the speed of upstream data bag to receiver, and determine that the mean value of each speed obtains Mean Speed.
In this step, the second Preset Time section can be set according to actual needs, and preferably, the second Preset Time section can equate with the first Preset Time section in S201.
S203, according to the numerical relation between Mean Speed definite in Packet Error Rate definite in S201 and S202, the current receiving sensitivity of estimation receiver, make Mean Speed definite in the less and S202 of Packet Error Rate definite in S201 higher, the current receiving sensitivity estimating is higher.
Further, if it is too low that the receiving sensitivity of receiver arranges, the normal upward signal that may cause receiver cannot receiving terminal to send, and if the normal upward signal that receiver cannot receiving terminal sends, terminal may reduce transmission rate, and then has influence on up throughput.In order to reach optimum wireless throughput, preferably, should make the Packet Error Rate minimum of receiver, and the transmission rate maximum of terminal.Therefore, can receive the data value relation between the Packet Error Rate of packet and the Mean Speed of terminal transmission packet by receiver, the current receiving sensitivity of estimation receiver, and, ensure in the data value relation between definite Packet Error Rate and Mean Speed, Packet Error Rate sensitivity less and the higher receiver of Mean Speed is higher.
Preferably, according to the numerical relation between Packet Error Rate and Mean Speed, can adopt the current receiving sensitivity E of following formula estimation receiver:
E=R × α (1-per) formula (1)
In formula (1), R characterizes the Mean Speed of the interior each terminal of the second Preset Time section to receiver transmission upstream data bag; Per sign receiver receives the Packet Error Rate of packet in the first Preset Time section; α characterizes and adjusts coefficient, and α is positive number.Preferably, α is the positive number of 1 or 1 left and right.
Visible according to formula (1), when Mean Speed, R is higher, Packet Error Rate per is less, R is larger with product (1-per), illustrate that current interference is less, can make so lowest signal intensity that receiver can receive, that can normally work smaller, improve the receiving sensitivity of receiver.
Further; a kind of mode of preferably estimating receiving sensitivity is provided in formula (1); determine other estimation modes of receiving sensitivity according to the data value relation between the Packet Error Rate of receiver reception packet and the Mean Speed of terminal transmission packet; meet Packet Error Rate sensitivity less and the higher receiver of Mean Speed higher also within protection scope of the present invention, repeat no more here.
S204, determine the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of estimating in S203.
In this step, preferably, when initial, can suppose that current environment is desirable environment, there is not interference, receiver sensitivity is set to the highest receiving sensitivity, that is to say, the receiving sensitivity of estimation can be determined difference with the highest receiving sensitivity first, after this adopts the method for adjustment inspection of the receiver sensitivity that the embodiment of the present invention provides to upgrade receiving sensitivity.Also can be according to actual needs, when initial, the receiving sensitivity of receiver is set to any receiving sensitivity in receiving sensitivity adjustable extent, after this adopts the method for adjustment inspection of the receiver sensitivity that the embodiment of the present invention provides to upgrade receiving sensitivity.
S205, judge whether the absolute value of difference definite in S204 is greater than the default threshold of sensitivity, if so, enters step S206, if not, enters step S209.
S206, judge and the magnitude relationship of the receiving sensitivity of the receiving sensitivity estimated in S203 and current use if be greater than, enter step S207, if be less than, enter step S208.
S207, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal.Enter step S210.
In this step, when the receiving sensitivity of estimating in S203 is greater than the receiving sensitivity of current use, and when in S204, the absolute value of definite difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal.That is to say, when the receiving sensitivity of estimation is greater than the receiving sensitivity of current use, illustrate that in current wireless environment, interference is less, can increase the receiving sensitivity of receiver, make lowest signal intensity that receiver can receive, that can normally work smaller, abandon in order to avoid normal data packet is used as to interference signal.
Further, according to the configuring condition of each receiver hardware, the scope of the receiving sensitivity of each receiver and minimum capable of regulating unit may be different.Generally, can be by the highest receiving sensitivity RS of receiver hardware constraints
ufor example, with the adjustable unit of minimum (: 1db), and according to actual conditions, minimum receiving sensitivity RS is set
d, receiving sensitivity RS
iadjustable range can be defined as:
RS
i∈ [RS
u, RS
d] formula (1)
Due to the highest receiving sensitivity RS of receiver
uadjustable unit is limited by hardware configuration situation with minimum, and determines the highest receiving sensitivity RS of receiver according to actual conditions
uwith minimum receiving sensitivity RS
dbetween the adjustable units N of minimum that differs, can obtain:
RS
d=RS
u+ N formula (2)
It should be noted that, because receiving sensitivity is generally negative, and the highest receiving sensitivity RS
uabsolute value be greater than minimum receiving sensitivity RS
dabsolute value, | RS
u| > | RS
d|, therefore common RS
u< RS
d, in formula (2), N is integer.
Further, in this step, the adjustable range of receiver receiving sensitivity can be suc as formula shown in (1), that is to say, when the receiving sensitivity of estimating in S203 is greater than the receiving sensitivity of current use, and the absolute value of definite difference is greater than the default threshold of sensitivity in S204, and the receiving sensitivity of current use has been the highest receiving sensitivity RS of receiver
utime, or
When the receiving sensitivity of estimating in S203 is greater than the receiving sensitivity of current use, and in S204, the absolute value of definite difference is greater than the default threshold of sensitivity, and after the receiving sensitivity of the current use of receiver is increased according to predetermined manner, the receiving sensitivity of the new current use of receiver after adjustment is greater than the highest receiving sensitivity RS
utime, can not adjust the receiving sensitivity of the current use of receiver.
In this step, during specifically to reception sensitivity adjustment, can increase according to actual needs suitable adjustment amount, preferably, can preset unit of adjustment, can be according to default unit of adjustment while increasing receiving sensitivity at every turn, adjust upward one or several default units of adjustment.Default unit of adjustment can set according to actual needs, can be minimum adjustable unit, also can be for being greater than the default unit of adjustment of minimum adjustable unit.
S208, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.Enter step S210.
In this step, when the receiving sensitivity of estimation is less than the receiving sensitivity of current use, and when in S204, the absolute value of definite difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.That is to say, when the receiving sensitivity of estimation is less than the receiving sensitivity of current use, illustrate that in current wireless environment, interference is larger, can reduce the receiving sensitivity of receiver, make lowest signal intensity that receiver can receive, that can normally work larger, in order to avoid being used as to normal data packet, interference signal receives, to realize the interference that reduces interference signal.
Further, in this step, the adjustable range of receiver receiving sensitivity can be suc as formula shown in (1), that is to say, when the receiving sensitivity of estimating in S203 is less than the receiving sensitivity of current use, and the absolute value of definite difference is greater than the default threshold of sensitivity in S204, and the receiving sensitivity of current use has been the minimum receiving sensitivity RS of receiver
dtime, or
When the receiving sensitivity of estimating in S203 is less than the receiving sensitivity of current use, and in S204, the absolute value of definite difference is greater than the default threshold of sensitivity, and after the receiving sensitivity of the current use of receiver is reduced according to predetermined manner, the receiving sensitivity of the new current use of receiver after adjustment is less than minimum receiving sensitivity RS
dtime, can not adjust the receiving sensitivity of the current use of receiver.
Further, can timer interval T be set according to actual conditions, every the T time, the receiving sensitivity of receiver be estimated and adjusted.
The receiving sensitivity of S209, the current use of maintenance receiver is constant.This flow process finishes.
Further, in the present embodiment, can judge whether to adjust current use sensitivity according to the current receiving sensitivity estimating, when estimation receiving sensitivity and the receiving sensitivity difference of the current use of receiver be zero, or, when the receiving sensitivity of estimation and the difference of the receiving sensitivity of the current use of receiver non-vanishing, but the absolute value of difference is while being not more than the default threshold of sensitivity, can keep the receiving sensitivity of the current use of receiver constant.
In this step, because receiving sensitivity is constant, threshold value also can be constant in idle channel detection (CCA, Clear Channel Assessment) so.
S210, according to the receiving sensitivity of the current use of the new receiver after the adjustment obtaining in S207 or in S208, adjust current C CA threshold value.
Preferably, can adopt following formula to adjust current C CA threshold value CCA:
CCA=RS
i+ M formula (3)
In formula (3), RS
icharacterize the receiving sensitivity of the new current use of receiver after adjusting; Preset difference value between receiving sensitivity and the CCA threshold value of M sign receiver.Conventionally M can be the empirical value obtaining through many experiments.
Further, CCA threshold value can be the whether idle threshold value of assessment channel.Particularly, in the time that the signal strength signal intensity of signal to be sent is greater than CCA thresholding, can determine that the current channel of eating dishes without rice or wine is busy, can not transmitted signal, in the time that the signal strength signal intensity of signal to be sent is not more than CCA thresholding, can determine the current channel idle of eating dishes without rice or wine, can transmitted signal.
Further, CCA threshold value receiving sensitivity common and receiver has fixing numerical relation (shown in (3)), so, the self adaptation providing in the embodiment of the present invention is adjusted under the prerequisite of receiver receiving sensitivity, CCA threshold value also can realize self adaptation adjustment, adjusts according to the receiving sensitivity after adjusting.
The receiving sensitivity that the method that uses the embodiment of the present invention to provide below by example 1 explanation is definite and the CCA thresholding definite according to this receiving sensitivity, carry out the process of wireless data transceiving.
Example 1: terminal A sends data by wireless routing to terminal B, particularly, and data that the receiver receiving terminal A of wireless routing sends, and determining that the data that terminal A sends are valid data, and currently eat dishes without rice or wine to send the data to when channel idle terminal B.
The decision model schematic diagram of the CCA thresholding that Fig. 3 provides for example 1, as shown in Figure 3, the RSi using in RSi determination module 302 is the receiving sensitivity of the new current use of receiver after adjusting, the CCA thresholding of the CCA using in CCA thresholding determination module 304 for adjusting according to RSi, receiver antenna 301 is in the time receiving the packet of terminal A transmission by eating dishes without rice or wine, in the time that the signal strength signal intensity of this packet of transmission is greater than receiving sensitivity RSi, receiver can receive this packet, and Packet Generation is arrived to useful signal judge module 303, in useful signal judge module 303, the lead code of carrying according to packet packet header judges whether this packet is the effective wireless signal (meeting the signal of 802.11 agreements) that self can process, if, will send this Packet Generation to CCA thresholding determination module 304, otherwise, by data packet discarding, continue to monitor and whether receive packet, CCA thresholding determination module 304 is made comparisons sending the signal strength signal intensity of this packet and the CCA thresholding of Set For Current, in the time that signal strength signal intensity is greater than CCA thresholding, determine that the current channel of eating dishes without rice or wine is busy, packet is put into queue to be sent, wait sends while eating dishes without rice or wine channel idle, in the time that signal strength signal intensity is not more than CCA thresholding, determine the current channel idle of eating dishes without rice or wine, data are sent to terminal B by this channel of eating dishes without rice or wine.
According to predetermined period, the receiving sensitivity of estimation receiver, and current use receiving sensitivity is adjusted, and adjust CCA threshold value according to the new current use receiving sensitivity after adjusting, use receiving sensitivity and the CCA threshold value adjusted in real time, there is better AP transmitting-receiving performance that data are received and sent, realized the interference control of receiver.
Based on same inventive concept, the embodiment of the present invention also provides a kind of receiver, because the principle that this receiver is dealt with problems is similar to the interference control method of aforementioned a kind of receiver, therefore the enforcement of this receiver can be referring to the enforcement of preceding method, repeats part and repeat no more.
A kind of receiver that the embodiment of the present invention provides, as shown in Figure 4, comprising:
Estimation block 401, for estimating the current receiving sensitivity of receiver;
Determination module 402, the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of estimating for definite described estimation block 401;
Adjusting module 403, be greater than the receiving sensitivity of current use for the receiving sensitivity of estimating when described estimation block 401, and when the absolute value of the definite difference of described determination module 402 is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal; The receiving sensitivity of estimating when described estimation block 401 is less than the receiving sensitivity of current use, and when the absolute value of the definite difference of described determination module 402 is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.
Further, described estimation block 401, specifically for estimating in the following way the current receiving sensitivity of receiver: determine that receiver receives the Packet Error Rate of packet in the first Preset Time section; Determine in the second Preset Time section that each terminal is to the Mean Speed of receiver transmission upstream data bag; According to the numerical relation between described Packet Error Rate and described Mean Speed, the current receiving sensitivity of estimation receiver, makes that described Packet Error Rate is less and Mean Speed is higher, and the current receiving sensitivity estimating is higher.
Further, described estimation block 401, specifically for according to the numerical relation between described Packet Error Rate and described Mean Speed, adopts the current receiving sensitivity E of following formula estimation receiver:
E＝R×α(1-per)
Wherein, R characterizes described Mean Speed; Per characterizes described Packet Error Rate; α characterizes and adjusts coefficient, and α is positive number.
Further, described adjusting module 403, also for after adjusting the receiving sensitivity of the current use of receiver, according to the receiving sensitivity of the new current use of receiver after adjusting, adjusts current C CA threshold value.
Further, described adjusting module 403, specifically for according to the receiving sensitivity of the new current use of receiver after adjusting, adopts following formula to adjust current C CA threshold value CCA:
CCA＝RS
i+M
Wherein, RS
icharacterize the receiving sensitivity of the new current use of receiver after adjusting; Preset difference value between receiving sensitivity and the CCA threshold value of M sign receiver.
A kind of equipment that the embodiment of the present invention provides, comprising: above-mentioned a kind of receiver.
The function of above-mentioned each unit can, corresponding to the respective handling step in flow process shown in Fig. 1 to Fig. 2, not repeat them here.
Interference control method, receiver and the equipment of a kind of receiver that the embodiment of the present invention provides, the current receiving sensitivity of estimation receiver; Determine the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of estimating; When the receiving sensitivity of estimation is greater than the receiving sensitivity of current use, and when the absolute value of this difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal; When the receiving sensitivity of estimation is less than the receiving sensitivity of current use, and when the absolute value of this difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.The interference control method of a kind of receiver that the embodiment of the present invention provides, by making receiver according to interference source situation, the receiving sensitivity that is receiver to jamproof key factor is carried out self adaptation adjustment, make receiver can not make because receiving sensitivity is too low normal packet be dropped, also can interference signal be around used as to normal packet because receiving sensitivity is too high receives, make receiver reach better AP transmitting-receiving performance, even the in the situation that of the intensive deployment of wireless network, also can correctly receive the normal packet that self should receive, reduce the interference of interference signal.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (11)
1. an interference control method for receiver, is characterized in that, comprising:
The current receiving sensitivity of estimation receiver;
Determine the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of estimating;
When the receiving sensitivity of estimation is greater than the receiving sensitivity of current use, and when the absolute value of described difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal;
When the receiving sensitivity of estimation is less than the receiving sensitivity of current use, and when the absolute value of described difference is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.
2. the method for claim 1, is characterized in that, estimates in the following way the current receiving sensitivity of receiver:
Determine that receiver receives the Packet Error Rate of packet in the first Preset Time section;
Determine in the second Preset Time section that each terminal is to the Mean Speed of receiver transmission upstream data bag;
According to the numerical relation between described Packet Error Rate and described Mean Speed, the current receiving sensitivity of estimation receiver, makes that described Packet Error Rate is less and Mean Speed is higher, and the current receiving sensitivity estimating is higher.
3. method as claimed in claim 2, is characterized in that, according to the numerical relation between described Packet Error Rate and described Mean Speed, adopts the current receiving sensitivity E of following formula estimation receiver:
E＝R×α(1-per)
Wherein, R characterizes described Mean Speed; Per characterizes described Packet Error Rate; α characterizes and adjusts coefficient, and α is positive number.
4. the method as described in claim 1-3 any one, is characterized in that, after adjusting the receiving sensitivity of the current use of receiver, also comprises:
According to the receiving sensitivity of the new current use of receiver after adjusting, adjust current idle channel and detect CCA threshold value.
5. method as claimed in claim 4, is characterized in that, according to the receiving sensitivity of the new current use of receiver after adjusting, adopts following formula to adjust current C CA threshold value CCA:
CCA＝RS
i+M
Wherein, RS
icharacterize the receiving sensitivity of the new current use of receiver after adjusting; Preset difference value between receiving sensitivity and the CCA threshold value of M sign receiver.
6. a receiver, is characterized in that, comprising:
Estimation block, for estimating the current receiving sensitivity of receiver;
Determination module, for the difference between receiving sensitivity and the receiving sensitivity of the current use of receiver of definite described estimation block estimation;
Adjusting module, for be greater than the receiving sensitivity of current use when the receiving sensitivity of described estimation block estimation, and when the absolute value of the definite difference of described determination module is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is increased, to reduce the interference of interference signal; When the receiving sensitivity of described estimation block estimation is less than the receiving sensitivity of current use, and when the absolute value of the definite difference of described determination module is greater than the default threshold of sensitivity, in the adjustable range of receiver receiving sensitivity, the receiving sensitivity of the current use of receiver is reduced, to reduce the interference of interference signal.
7. receiver as claimed in claim 6, is characterized in that, described estimation block, specifically for estimating in the following way the current receiving sensitivity of receiver: determine that receiver receives the Packet Error Rate of packet in the first Preset Time section; Determine in the second Preset Time section that each terminal is to the Mean Speed of receiver transmission upstream data bag; According to the numerical relation between described Packet Error Rate and described Mean Speed, the current receiving sensitivity of estimation receiver, makes that described Packet Error Rate is less and Mean Speed is higher, and the current receiving sensitivity estimating is higher.
8. receiver as claimed in claim 7, is characterized in that, described estimation block specifically for according to the numerical relation between described Packet Error Rate and described Mean Speed, adopts the current receiving sensitivity E of following formula estimation receiver:
E＝R×α(1-per)
Wherein, R characterizes described Mean Speed; Per characterizes described Packet Error Rate; α characterizes and adjusts coefficient, and α is positive number.
9. the receiver as described in claim 6-8 any one, it is characterized in that, described adjusting module, also for after adjusting the receiving sensitivity of the current use of receiver, according to the receiving sensitivity of the new current use of receiver after adjusting, adjust current C CA threshold value.
10. receiver as claimed in claim 9, is characterized in that, described adjusting module specifically for according to the receiving sensitivity of the new current use of receiver after adjusting, adopts following formula to adjust current C CA threshold value CCA:
CCA＝RS
i+M
Wherein, RS
icharacterize the receiving sensitivity of the new current use of receiver after adjusting; Preset difference value between receiving sensitivity and the CCA threshold value of M sign receiver.
11. 1 kinds of equipment, is characterized in that, comprising: the receiver as described in claim 6～10 any one.
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| CN104410989A (en) * | 2014-11-03 | 2015-03-11 | 华数传媒网络有限公司 | Intelligent radio frequency detection and adjusting method for household gateway |
| CN106253996A (en) * | 2016-08-09 | 2016-12-21 | 北京小米移动软件有限公司 | Sensitivity decay testing method and device |
| CN106470488A (en) * | 2015-08-20 | 2017-03-01 | 华为技术有限公司 | Channel binding method and device |
| WO2020102986A1 (en) * | 2018-11-20 | 2020-05-28 | 深圳市欢太科技有限公司 | Method and device for interference processing, storage medium, and electronic device |
| CN112437418A (en) * | 2020-07-17 | 2021-03-02 | 珠海市杰理科技股份有限公司 | TWS device communication data configuration method, device, equipment, chip and medium |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104410989A (en) * | 2014-11-03 | 2015-03-11 | 华数传媒网络有限公司 | Intelligent radio frequency detection and adjusting method for household gateway |
| CN106470488A (en) * | 2015-08-20 | 2017-03-01 | 华为技术有限公司 | Channel binding method and device |
| CN106470488B (en) * | 2015-08-20 | 2020-02-21 | 华为技术有限公司 | Channel bundling method and device |
| CN106253996A (en) * | 2016-08-09 | 2016-12-21 | 北京小米移动软件有限公司 | Sensitivity decay testing method and device |
| WO2020102986A1 (en) * | 2018-11-20 | 2020-05-28 | 深圳市欢太科技有限公司 | Method and device for interference processing, storage medium, and electronic device |
| CN112437418A (en) * | 2020-07-17 | 2021-03-02 | 珠海市杰理科技股份有限公司 | TWS device communication data configuration method, device, equipment, chip and medium |
| CN112437418B (en) * | 2020-07-17 | 2024-01-30 | 珠海市杰理科技股份有限公司 | TWS equipment communication data configuration method, TWS equipment communication data configuration device, TWS equipment communication data configuration chip and TWS equipment communication data configuration medium |
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| CN104052511B (en) | 2016-08-24 |
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Address after: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee after: RUIJIE NETWORKS Co.,Ltd. Address before: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee before: Beijing Star-Net Ruijie Networks Co.,Ltd. |