CN105430730B - Determine the method, apparatus and system and network access device of transmission power collection - Google Patents
Determine the method, apparatus and system and network access device of transmission power collection Download PDFInfo
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- CN105430730B CN105430730B CN201510713616.8A CN201510713616A CN105430730B CN 105430730 B CN105430730 B CN 105430730B CN 201510713616 A CN201510713616 A CN 201510713616A CN 105430730 B CN105430730 B CN 105430730B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
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Abstract
The present invention is suitable for wireless communication technology field, provide the method, apparatus and system and network access device of a kind of determining transmission power collection, the described method includes: determining the corresponding Initial transmitting power value of each no line rate according to two RF indexes of EVM and Mask；It tests and is recorded under different fading channel values, the size of radio throughput corresponding with each no line rate, generate the curve of each radio throughput Yu fading channel value, and the curve of each radio throughput and fading channel value is placed in the same coordinate system, generate the curve graph of radio throughput and fading channel value；Each point of inflexion on a curve in the curve graph is fitted, the integrated curved after generating fitting；According to the corresponding relationship of radio throughput and fading channel value in the integrated curved, the corresponding Initial transmitting power value of each no line rate is adjusted, a new transmission power collection is generated.The present invention makes to keep reasonable power gradient between each transmission power level.
Description
Technical field
The invention belongs to the method, apparatus of wireless communication technology field more particularly to a kind of determining transmission power collection and it is
System and network access device.
Background technique
In the transmitting for determining the network access devices such as wireless router, wireless aps, repeater Repeater and wireless network card
When power, prior art common practice is by Error Vector Magnitude (Error Vector Magnitude, EVM) and transmitting frequency
Template (Transmit Spectrum Mask, Mask) two RF indexes are composed as determination basis.For high-speed, mainly according to
According to being EVM index, for low rate, main foundation is Mask index.
For example, under the 11g mode of 2.4GHz, the rate set of wireless router include 54Mbps, 48Mbps,
The rates such as 36Mbps, 24Mbps, 18Mbps, 12Mbps, 9Mbps and 6Mbps, each rate correspond to a transmission power
Value.For high-speed, such as 54Mbps, the transmission power level of wireless router is determined according to EVM index, in 11g wireless protocols,
The EVM of 54Mbps requires to be less than or equal to -25dB, can be -25dB (or being less than -25dB) corresponding one by EVM in practical application
A performance number is as the corresponding transmission power of 54Mbps；For low rate, such as 6Mbps, wireless routing is determined according to Mask index
The transmission power level of device, with the increase of transmission power, the frequency spectrum for emitting signal can be practical gradually beyond limit value as defined in Mask
In, the frequency spectrum for emitting signal can be just met for the performance number of limit value as defined in Mask (or be less than limit value) as
The corresponding transmission power of 6Mbps.
The prior art only according to two RF indexes of EVM and Mask, respectively to the corresponding transmission power level of each rate into
Row is separately provided, and mainly has the disadvantage that:
1), do not lack using the corresponding transmission power level of each no line rate as a power collection to each transmitting function
Relationship between rate value is constrained, therefore reasonable power gradient is not formed between each transmission power level.Wherein, power
Gradient refers to the relationship between each performance number, can be it is linear nonlinear, can be essentially equal, be also possible to other relationships.
2) power gradient, is not accounted for the switching of negotiated speed in practical application and the influence of radio throughput.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of method, apparatus of determining transmission power collection and system and network connect
Equipment is connect, to solve the network access device of prior art offer, lacks and the relationship between each transmission power level is carried out about
Beam, so that the problem of not forming reasonable power gradient between each transmission power level.
In a first aspect, providing a kind of method of determining transmission power collection, comprising:
According to two RF indexes of Error Vector Magnitude EVM and emission spectrum template Mask, each no line rate pair is determined
The Initial transmitting power value answered；
It tests and is recorded under different fading channel values, the size of radio throughput corresponding with each no line rate,
The curve of each radio throughput Yu fading channel value is generated, and the curve of each radio throughput and fading channel value is placed in
In the same coordinate system, the curve graph of radio throughput and fading channel value is generated；
Each point of inflexion on a curve in the curve graph is fitted, the integrated curved after generating fitting；
According to the corresponding relationship of radio throughput and fading channel value in the integrated curved, each no line rate pair is adjusted
The Initial transmitting power value answered generates a new transmission power collection.
Further, the integrated curved after the fitting meets:
With being incremented by for fading channel value, the variation of radio throughput is dull, gentle.
Further, the variation of radio throughput is not dull enough, gently refers to that no line rate is jumped.
Further, for skipping without line rate, in the claimed range of EVM and Mask, the nothing skipped described in increase
Higher one grade without line rate skipped described in the size or reduction of the corresponding transmission power level of line rate is corresponding without line rate
Transmission power level size.
Second aspect provides a kind of device of determining transmission power collection, comprising:
Initial power determination unit, for being referred to according to two radio frequencies of Error Vector Magnitude EVM and emission spectrum template Mask
Mark, determines the corresponding Initial transmitting power value of each no line rate；
Curve graph generation unit, it is corresponding with each no line rate for testing and being recorded under different fading channel values
Radio throughput size, generate the curve of each radio throughput Yu fading channel value, and by each radio throughput with
The curve of fading channel value is placed in the same coordinate system, generates the curve graph of radio throughput and fading channel value；
Fitting unit, for being fitted to each point of inflexion on a curve in the curve graph, the entirety after generating fitting
Curve；
Power adjustment unit, for the corresponding relationship according to radio throughput and fading channel value in the integrated curved,
The corresponding Initial transmitting power value of each no line rate is adjusted, a new transmission power collection is generated.
Further, the integrated curved after the fitting meets: with being incremented by for fading channel value, the change of radio throughput
Change dull, gentle.
Further, the variation of radio throughput is not dull enough, gently refers to that no line rate is jumped.
Further, for skipping without line rate, in the claimed range of EVM and Mask, the nothing skipped described in increase
Higher one grade without line rate skipped described in the size or reduction of the corresponding transmission power level of line rate is corresponding without line rate
Transmission power level size.
The third aspect, provides a kind of network access device, the network access device include as described in second aspect really
Determine the device of transmission power collection.
Fourth aspect provides a kind of system of determining transmission power collection, including wireless terminal, further includes described in the third aspect
Network access device.
In the embodiment of the present invention, when determining transmission power, increase to the corresponding transmission power of each no line rate it
Between relevance the considerations of, can be using the corresponding transmission power level of each no line rate as a power collection, to each transmitting function
Relationship between rate value is constrained, can be according to each point of inflexion on a curve in the curve graph of radio throughput and fading channel value
The size of integrated curved adjustment transmission power level after being fitted makes to keep reasonable power ladder between each transmission power level
Degree.Furthermore, it is contemplated that the relationship that transmission power level switches with no line rate in practical application, so that network access device and wireless
Rate switching between terminal is more stable, and wireless performance is more stable.
Detailed description of the invention
Fig. 1 is the implementation flow chart present invention determine that the embodiment of the method for transmission power collection；
Fig. 2 is the curve of radio throughput and fading channel value present invention determine that in the embodiment of the method for transmission power collection
First schematic diagram of figure includes the curve of a radio throughput and fading channel value in the schematic diagram；
Fig. 3 is the curve of radio throughput and fading channel value present invention determine that in the embodiment of the method for transmission power collection
Second schematic diagram of figure includes n radio throughput in the schematic diagram and the curve of fading channel value and turn to n curve
The integrated curved that point is fitted；
Fig. 4 is the schematic diagram present invention determine that in the embodiment of the method for transmission power collection, when no line rate is jumped；
Fig. 5 is the structural block diagram present invention determine that the Installation practice of transmission power collection.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In embodiments of the present invention, first according to two RF indexes of EVM and Mask, determine that each no line rate is corresponding just
Beginning transmission power level, re-test are simultaneously recorded under different fading channel values, radio throughput corresponding with each no line rate
Size, generate the curve of each radio throughput Yu fading channel value, and by each radio throughput and fading channel value
Curve is placed in the same coordinate system, the curve graph of radio throughput and fading channel value is generated, then in the curve graph
Each point of inflexion on a curve is fitted, the integrated curved after generating fitting, finally according to radio throughput in the integrated curved
With the corresponding relationship of fading channel value, the corresponding Initial transmitting power value of each no line rate is adjusted, a new transmitting is generated
Power collection.
Realization of the invention is described in detail below in conjunction with specific embodiment:
Embodiment one
Fig. 1 shows the implementation process of the method for the determination transmission power collection of the offer of the embodiment of the present invention one, and details are as follows:
In step s101, according to two RF indexes of EVM and Mask, the corresponding initial transmissions of each no line rate are determined
Performance number.
In embodiments of the present invention, it is determined each wireless using the prior art according to two RF indexes of EVM and Mask
The corresponding Initial transmitting power value of rate, the foundation as next step test.
In step s 102, it tests and is recorded under different fading channel values, it is corresponding with each no line rate wireless
The size of handling capacity generates the curve of each radio throughput Yu fading channel value, and each radio throughput is declined with channel
The curve of depreciation is placed in the same coordinate system, generates the curve graph of radio throughput and fading channel value.
In embodiments of the present invention, using fading channel value as abscissa (unit dB), with corresponding with no line rate wireless
Handling capacity is ordinate (unit Mbps), establishes coordinate system, tests and be recorded under different fading channel values, radio throughput
Size.Fig. 2 is the first schematic diagram of the curve graph of radio throughput and fading channel value, shows a nothing in the schematic diagram
The curve of line handling capacity and fading channel value, with being gradually incremented by for fading channel value, radio throughput is up to meeting since peak value
Decline, corresponding coordinate points are denoted as inflection point at this time；When wireless channel pad value reaches certain value, radio throughput is close
0Mbps, corresponding coordinate points are denoted as zero point at this time.
To each no line rate, above-mentioned test is carried out, and all curves are placed in the same coordinate system, generates nothing
The curve graph of line handling capacity and fading channel value.
In step s 103, each point of inflexion on a curve in the curve graph is fitted, the entirety after generating fitting
Curve.
In embodiments of the present invention, radio throughput and each point of inflexion on a curve in the curve graph of fading channel value are made
It is fitted and is drawn with existing approximating method, the integrated curved after generating fitting.Fig. 3 is radio throughput and fading channel
Second schematic diagram of the curve graph of value shows the curve of n radio throughput and fading channel value in the schematic diagram and to n
The integrated curved that point of inflexion on a curve is fitted.As shown in figure 3, will with rate 1, rate 2 ..., rate n it is corresponding
N radio throughput and the inflection point of the curve (dotted line and chain-dotted line in Fig. 3) of fading channel value are fitted, and generation one is whole
Body curve (solid line in Fig. 3).
Wherein, the integrated curved after fitting meets: with being incremented by for fading channel value, the variation of radio throughput is single
It adjusts, is gentle, avoiding the steep drop phenomenon for occurring radio throughput due to power.
In step S104, according to the corresponding relationship of radio throughput and fading channel value in the integrated curved, adjustment
The corresponding Initial transmitting power value of each no line rate, generates a new transmission power collection.
In embodiments of the present invention, it can be adjusted each wireless according to the overall variation trend of the integrated curved after fitting
The corresponding Initial Trans of rate generate a new transmission power collection.
Wherein, the difference of new transmission power collection and the former transmission power collection being made of Initial Trans is, from number
See, may not change in value, it is also possible to do small adjustment, for example former transmission power is concentrated, the 54Mbps of 11g mode and
The corresponding transmission power of 48Mbps is respectively 18dBm and 17dBm, and the corresponding transmission power of 54Mbps and 48Mbps may after adjustment
It is 18dBm and 18dBm, variation is that the corresponding EVM surplus of the transmission power level of 48Mbps reduces a bit.
In actual test, the variation of radio throughput will appear not dull enough, gentle phenomenon.Wherein, it wirelessly gulps down
The variation for the amount of spitting is not dull enough, gently refers to that no line rate is jumped.
The negotiated speed between network access devices and wireless terminal such as wireless router, wireless aps can be with wireless channel
Change and change.When wireless channel conditions are preferable, can negotiate in higher rate；When wireless channel conditions are deteriorated,
Negotiated speed can decline.It is desired that gradually changing with wireless channel, negotiated speed can successively change.Such as
With gradually increasing for communication distance, negotiated speed can successively change into 48Mbps, 36Mbps etc. from initial 54Mbps
Deng, and the phenomenon that skipping a certain rate not occur, it such as is converted directly into 36Mbps from 54Mbps, centre was just adjusted
48Mbps.In the case of such, it is believed that the variation of radio throughput is not dull enough and gentle.As shown in figure 4, illustrating wireless
A kind of situation of rate jump.The size of transmission power is a possible factor for leading to no line rate jump, can be passed through
Adjustment to transmission power, trial solves the problems, such as that emission rate is jumped, or excludes transmission power reason.Specific method of adjustment
It is that, for a certain no line rate skipped, can suitably can increase the emission rate pair in the claimed range of EVM and Mask
The size for the transmission power level answered；It either can suitably reduce the corresponding transmitting of higher one grade of emission rate of the emission rate
The size of performance number.
The present embodiment determines the corresponding initial transmissions function of each no line rate according to two RF indexes of EVM and Mask
After rate value, the radio throughput of generation and each point of inflexion on a curve in the curve graph of fading channel value are fitted, generated
Integrated curved after fitting, finally according to the corresponding relationship of radio throughput and fading channel value in the integrated curved, adjustment
The corresponding Initial transmitting power value of each no line rate, generates a new transmission power collection.When determining transmission power, increase
It, can be by the corresponding transmitting function of each no line rate between the corresponding transmission power of each no line rate the considerations of relevance
Rate value constrains the relationship between each transmission power level as a power collection, can be according to radio throughput and letter
The size of integrated curved adjustment transmission power level after each point of inflexion on a curve is fitted in the curve graph of road pad value, makes each
Reasonable power gradient is kept between a transmission power level.Furthermore, it is contemplated that transmission power level and no line rate in practical application
The relationship of switching, so that network access devices such as wireless router, wireless aps, repeater Repeater and wireless network card and wireless
Rate switching between terminal is more stable, and wireless performance is more stable.
It should be understood that in embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to the elder generation of execution sequence
Afterwards, the execution sequence of each process should be determined by its function and internal logic, the implementation process structure without coping with the embodiment of the present invention
At any restriction.
Those of ordinary skill in the art will appreciate that all or part of the steps in realization the various embodiments described above method is can
It is completed with instructing relevant hardware by program, corresponding program can store in a computer-readable storage medium
In, the storage medium, such as ROM/RAM, disk or CD.
Embodiment two
Fig. 5 shows the specific block diagram of the device of determining transmission power collection provided by Embodiment 2 of the present invention, in order to
Convenient for explanation, only parts related to embodiments of the present invention are shown.The device 5 of the determination transmission power collection, which can be, to be built in
Software unit, hardware cell in the network access devices such as wireless router, wireless aps, repeater Repeater and wireless network card
Or the unit of software and hardware combining.Wherein, the network access device can form one and determine transmitting together with wireless terminal
The system of power collection, the system are the communication systems without line rate that has different stalls.The device 5 of the determination transmission power collection wraps
It includes: initial power determination unit 51, curve graph generation unit 52, curve matching unit 53 and power adjustment unit 54.
Wherein, initial power determination unit 51, for according to Error Vector Magnitude EVM and emission spectrum template Mask two
RF index determines the corresponding Initial transmitting power value of each no line rate；
Curve graph generation unit 52, for testing and being recorded under different fading channel values, with each no line rate pair
The size for the radio throughput answered, generates the curve of each radio throughput Yu fading channel value, and by each radio throughput
It is placed in the same coordinate system with the curve of fading channel value, generates the curve graph of radio throughput and fading channel value；
Curve matching unit 53, for being fitted to each point of inflexion on a curve in the curve graph, after generating fitting
Integrated curved；
Power adjustment unit 54, for being closed according to radio throughput in the integrated curved and the corresponding of fading channel value
System adjusts the corresponding Initial transmitting power value of each no line rate, generates a new transmission power collection.
Further, the integrated curved after the fitting meets: with being incremented by for fading channel value, the change of radio throughput
Change dull, gentle.
Further, the variation of radio throughput is not dull enough, gently refers to that no line rate is jumped.
Further, for skipping without line rate, in the claimed range of EVM and Mask, the nothing skipped described in increase
Higher one grade without line rate skipped described in the size or reduction of the corresponding transmission power level of line rate is corresponding without line rate
Transmission power level size.
The device of determining transmission power collection provided in an embodiment of the present invention can be applied in aforementioned corresponding embodiment of the method
In one, details are referring to the description of above-described embodiment one, and details are not described herein.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. a kind of method of determining transmission power collection characterized by comprising
According to two RF indexes of Error Vector Magnitude EVM and emission spectrum template Mask, determine that each no line rate is corresponding
Initial transmitting power value；It tests and is recorded under different fading channel values, radio throughput corresponding with each no line rate
Size, generate the curve of each radio throughput Yu fading channel value, and by each radio throughput and fading channel value
Curve is placed in the same coordinate system, generates the curve graph of radio throughput and fading channel value；To each in the curve graph
Point of inflexion on a curve is fitted, the integrated curved after generating fitting；
According to the corresponding relationship of radio throughput and fading channel value in the integrated curved, it is corresponding to adjust each no line rate
Initial transmitting power value generates a new transmission power collection, wireless for what is skipped when occurring skipping a certain no line rate
Rate, in the claimed range of EVM and Mask, the size without the corresponding transmission power level of line rate skipped described in increase or
The higher one grade of size without the corresponding transmission power level of line rate without line rate skipped described in reduction.
2. the method as described in claim 1, which is characterized in that the integrated curved after the fitting meets:
With being incremented by for fading channel value, the variation of radio throughput is dull, gentle.
3. method according to claim 2, which is characterized in that the variation of radio throughput is not dull enough, it is wireless gently to refer to
Rate is jumped.
4. a kind of device of determining transmission power collection characterized by comprising
Initial power determination unit is used for according to two RF indexes of Error Vector Magnitude EVM and emission spectrum template Mask, really
Determine the corresponding Initial transmitting power value of each no line rate；
Curve graph generation unit, for testing and being recorded under different fading channel values, nothing corresponding with each no line rate
The size of line handling capacity, generates the curve of each radio throughput Yu fading channel value, and by each radio throughput and channel
The curve of pad value is placed in the same coordinate system, generates the curve graph of radio throughput and fading channel value；
Fitting unit, for being fitted to each point of inflexion on a curve in the curve graph, the integrated curved after generating fitting；
Power adjustment unit, for the corresponding relationship according to radio throughput and fading channel value in the integrated curved, adjustment
The corresponding Initial transmitting power value of each no line rate, generates a new transmission power collection, when occurring skipping a certain no linear speed
When rate, for skipping without line rate, in the claimed range of EVM and Mask, that skips described in increase is corresponding without line rate
Higher one grade without line rate skipped described in the size or reduction of transmission power level is without the corresponding transmission power level of line rate
Size.
5. device as claimed in claim 4, which is characterized in that the integrated curved after the fitting meets: with fading channel
Value is incremented by, and the variation of radio throughput is dull, gentle.
6. device as claimed in claim 5, which is characterized in that the variation of radio throughput is not dull enough, it is wireless gently to refer to
Rate is jumped.
7. a kind of network access device, which is characterized in that the network access device includes such as any one of claim 4 to 6 institute
The device for the determination transmission power collection stated.
8. a kind of system of determining transmission power collection, including wireless terminal, which is characterized in that further include as claimed in claim 7
Network access device.
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| CN108471630B (en) * | 2018-06-12 | 2022-06-21 | Oppo广东移动通信有限公司 | Transmission rate adjusting method, device, mobile terminal and computer readable medium |
| CN108966266B (en) * | 2018-06-12 | 2021-11-16 | Oppo广东移动通信有限公司 | Communication connection method, device, electronic device and computer readable medium |
| CN111741487B (en) * | 2020-05-11 | 2024-02-09 | 深圳市共进电子股份有限公司 | Wireless mesh network route selection test method, device and terminal equipment |
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Effective date of registration: 20191225 Address after: 518000 Guangdong city of Shenzhen province Nanshan District high tech Zone Four New South Road No. 023 High-tech Industrial Village No. R1 B District third floor West Patentee after: Shenzhen Meikexing Communication Technology Co.,Ltd. Address before: 518000, Guangdong Nanshan District Shenzhen deep South Road Science and Technology Park industrial workshop 24, South Section 1, 3-5, 28 north section 1-4 Patentee before: TP-LINK Technologies Co., Ltd. |