CN107155210A - Poewr control method and node apparatus - Google Patents
Poewr control method and node apparatus Download PDFInfo
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- CN107155210A CN107155210A CN201710128738.XA CN201710128738A CN107155210A CN 107155210 A CN107155210 A CN 107155210A CN 201710128738 A CN201710128738 A CN 201710128738A CN 107155210 A CN107155210 A CN 107155210A
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/20—TPC being performed according to specific parameters using error rate
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
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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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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Abstract
The application is related to the Poewr control method and node apparatus concurrent for multinode in Wireless MESH network.When transmitting node in a time slot application different sub-carrier to multiple receiving node transmission signals when, the transmitting node distributes each transmission power for the multiple receiving node, and the transmission power of distribution is related to correspondingly received node.When multiple transmitting nodes in a time slot application different sub-carrier to same receiving node transmission signal when, the transmission power recommended value of each transmitting node is provided according to the path loss performance number between each transmitting node and the receiving node.According to the scheme of the application, the flexibility of frequency domain resource distribution is improved, and network throughput can get a promotion.
Description
Technical field
The application is related to Wireless MESH field, specifically, the power control concurrent for multinode in Wireless MESH network
Method processed and node apparatus.
Background technology
Wireless MESH network（Wireless mesh network）Also referred to as " multi-hop（multi-hop）" network.Wireless MESH network
Core guiding theory is that signal can be launched and be received to each node allowed in network, and any wireless device node can be same
Signal can be launched and be received to each node in Shi Zuowei AP and router, network, each node can with one or
The multiple peer nodes of person carry out direct communication.The development of Wireless MESH network be in it is in the ascendant among, industry is proposed
With the various schemes of development.In this application, MESH network can understand in a broad sense.
In traditional MESH network, each moment can only have a node transmitting data.In the case of unicast, receiving node
It is also unique.This point-to-point transmission means greatly reduces the performance of MESH network.With OFDM and MIMO technology
Introduce, MESH network can realize that multiple users' is concurrent in single time slot, by the technology of channeling, i.e., single section
Point can launch data to multiple nodes simultaneously, or multiple nodes can launch data to individual node simultaneously.This more piece
The concurrent technology of point can be obviously improved the performance of MESH network.
Existing Wireless MESH network（For example, based on 802.11 Wireless MESH network）Generally use constant power launch party
Case.
However, the inventors discovered that, for same time slot frequency division multiplexing multicast, if using constant power launch party
The limited flexibility system of case, then frequency domain resource distribution, and network throughput decline.
The present inventors have additionally discovered that, multiple for same time slot frequency division multiplexing one receives, if using constant power launch scenario,
Weak signal hydraulic performance decline when A/D quantifies.Weak signal can be caused weak by inter-sub-carrier interference caused by strong signal frequency deviation error
Signal performance degradation, as shown in Figure 1.
Above- mentioned information is only used for strengthening the understanding of the background to the present invention, therefore it disclosed in the background section
It can include not constituting the information to prior art known to persons of ordinary skill in the art.
The content of the invention
Disclosure is a kind of to be used for multinode concurrent Poewr control method and node apparatus, energy in Wireless MESH network
Enough lifting system performances.
Other characteristics and advantage of the present invention will be apparent from by following detailed description, or partially by the present invention
Practice and acquistion.
It is used for the concurrent Power Control side of multinode in Wireless MESH network there is provided a kind of according to an aspect of the present invention
Method, including：When transmitting node in a time slot application different sub-carrier to multiple receiving node transmission signals when, the transmitting node
Each transmission power for the multiple receiving node is distributed, each transmission power is related to correspondingly received node.
According to an embodiment, the transmitting node is distributed to be included for each transmission power of the multiple receiving node：Institute
State transmitting node and distribute each initial power for the multiple receiving node, each initial power is equal to pathLoss+
Signal_level+delta, pathLoss are the path loss performance number between the transmitting node and correspondingly received node,
Signal_level is the normal operating power required for transmission services, and delta is the power of the correspondingly received node feeding back
Error amount；
According to the difference and threshold value between each initial power, corresponding initial power is adjusted；
After adjustment is completed, according to each initial power sum and peak power limit value, each initial power is multiplied by adjustment system
Number.
According to an embodiment, the transmitting node is distributed to be included for each transmission power of the multiple receiving node：
The transmitting node distributes each initial power for the multiple receiving node, and each initial power is equal to pathLoss+
Signal_level+delta, pathLoss are the path loss performance number between the transmitting node and correspondingly received node,
Signal_level is the normal operating power required for transmission services, and delta is the power of the correspondingly received node feeding back
Error amount；
Difference or difference percentage in each initial power between maximum initial power and minimum initial power is compared with threshold value,
If the difference or difference percentage are more than the threshold value, the minimum initial power is adjusted so that the difference or difference
It is worth percentage and is less than or equal to the threshold value, until the maximum difference or difference percentage between each initial power is less than or equal to
The threshold value；
After adjustment is completed, total transmission power is calculated, will be each first if the total transmission power is more than peak power limit value
Beginning power is multiplied by penalty coefficient so that total transmission power is less than or equal to the peak power limit value.
According to an embodiment, the subcarrier is OFDM subcarriers.
According to an embodiment, delta initial value is zero.
According to an embodiment, each transmission power and the path loss power of the transmitting node and correspondingly received node
Value is related.
It is used for the concurrent Power Control side of multinode in Wireless MESH network there is provided a kind of according to another aspect of the present invention
Method, including：When multiple transmitting nodes in a time slot application different sub-carrier to same receiving node transmission signal when, host node root
Each transmitting work(of the multiple transmitting node is provided according to the path loss performance number between each transmitting node and the receiving node
Rate recommended value.
According to an embodiment, each transmission power recommended value is obtained by following process：
Each transmission power initial proposed value for the multiple transmitting node is set, each transmission power initial proposed value is equal to
PathLoss+Signal_level, pathLoss are the path loss power between corresponding transmitting node and the receiving node
Value, Signal_level is the normal operating power required for transmission services；
Difference or difference percentage between maximum and minimum value in each transmission power initial proposed value is compared with threshold value, if
Difference or the difference percentage is more than the threshold value, then increases the minimum value so that difference or the difference percentage is small
In or equal to the threshold value, until the maximum difference or difference percentage between each transmission power initial proposed value are less than or equal to
The threshold value.
According to an embodiment, the subcarrier is OFDM subcarriers.
According to an embodiment, the host node preserves the information on path loss that each node is reported.
According to an embodiment, the host node also determines the Internet resources that the multiple transmitting node takes.
According to another aspect of the present invention there is provided a kind of node apparatus for Wireless MESH network, including：
Power distribution module, for when the node in a time slot application different sub-carrier to multiple receiving node transmission signals
When, each transmission power for the multiple receiving node is distributed, and each transmission power of distribution is related to correspondingly received node.
According to an embodiment, the power distribution module includes：Initial power distribute module, for distributing the multiple connect
Each initial power of node is received, each initial power is equal to pathLoss+Signal_level+delta, and pathLoss is institute
The path loss performance number between node and correspondingly received node is stated, Signal_level is the normal work required for transmission services
The rate of doing work, delta is the power error value of the correspondingly received node feeding back；
Power regulation module, for according to the difference and threshold value between each initial power, adjusting corresponding initial power；
Power adjusting module again, after completing power adjustment in the power regulation module, according to each initial power sum
And peak power limit value, each initial power is multiplied by regulation coefficient.
According to an embodiment, the power distribution module includes：
Initial power distribute module, each initial power for distributing the multiple receiving node, each initial power is equal to
PathLoss+Signal_level+delta, pathLoss are the path loss work(between the node and correspondingly received node
Rate value, Signal_level is the normal operating power required for transmission services, and delta is the correspondingly received node feeding back
Power error value；
Power regulation module, for by the difference or difference between maximum initial power in each initial power and minimum initial power
Percentage is compared with threshold value, if the difference or difference percentage are more than the threshold value, adjusts the minimum initial power,
So that the difference or difference percentage are less than or equal to the threshold value, until maximum difference or difference between each initial power
Percentage is less than or equal to the threshold value；
Power adjusting module again, after completing power adjustment in the power regulation module, calculates total transmission power, if
The total transmission power is more than peak power limit value, each initial power is multiplied by into penalty coefficient so that total transmission power is less than
Or equal to the peak power limit value.
According to another aspect of the present invention there is provided a kind of node apparatus for Wireless MESH network, including：Power distribution
Module, for when multiple transmitting nodes in a time slot application different sub-carrier to same receiving node transmission signal when, according to each
Each transmission power that path loss performance number between transmitting node and the receiving node provides the multiple transmitting node is built
View value.
According to an embodiment, the power distribution module includes：Initial power module, for setting the multiple transmitting section
Each transmission power initial proposed value of point, each transmission power initial proposed value is equal to pathLoss+Signal_level,
PathLoss is the path loss performance number between corresponding transmitting node and the receiving node, and Signal_level is transmission industry
Normal operating power required for business；
Power regulation module, for by the difference or difference percentage between maximum and minimum value in each transmission power initial proposed value
Than being compared with threshold value, if the difference or difference percentage are more than the threshold value, increase the minimum value so that the difference
Value or difference percentage are less than or equal to the threshold value, until maximum difference or difference between each transmission power initial proposed value
Percentage is less than or equal to the threshold value.
According to an embodiment, node apparatus also includes memory module, for preserving the information on path loss that each node is reported.
According to an embodiment, node apparatus also includes control module, for determining the net that the multiple transmitting node takes
Network resource.
Another aspect of the present invention there is provided a kind of node apparatus for Wireless MESH network, including：
Transmitter；
Receiver；
Processor；
Memory, stores the instruction that following operation is completed for the processor：
When the transmitter in a time slot application different sub-carrier to multiple receiving node transmission signals when, distribute for described many
Each transmission power of individual receiving node, and each transmission power of distribution is related to correspondingly received node.
There is provided a kind of node apparatus for Wireless MESH network for another aspect of the present invention, it is characterised in that including：
Transmitter；
Receiver；
Processor；
Memory, stores the instruction that following operation is completed for the processor：
When multiple transmitting nodes in a time slot application different sub-carrier to same receiving node transmission signal when, according to it is each transmitting save
Path loss performance number between point and the receiving node provides each transmission power recommended value of the multiple transmitting node.
Multinode concurrent Poewr control method and node apparatus in Wireless MESH network is used for according to the present invention, can
The performance of MESH network is lifted, facilitates resource flexible dispatching.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 schematically shows the hydraulic performance decline feelings of frequency division multiplexing multiple debit case when constant power is launched in MESH network
Condition；
Fig. 2 shows the Poewr control method concurrent for multinode in Wireless MESH network according to an embodiment of the present invention；
Fig. 3 shows to be used for the concurrent Power Control side of multinode in Wireless MESH network according to another embodiment of the invention
Method；
Fig. 4 shows to be used for the concurrent Power Control side of multinode in Wireless MESH network according to another embodiment of the invention
Method；
Fig. 5 shows the node apparatus for Wireless MESH network according to an embodiment of the present invention；
Fig. 6 shows the node apparatus for Wireless MESH network according to another embodiment of the invention;
Fig. 7 shows the node apparatus for Wireless MESH network according to another embodiment of the invention.
Specific embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be real in a variety of forms
Apply, and be not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will be comprehensively and complete
It is whole, and the design of example embodiment is comprehensively conveyed into those skilled in the art.Identical reference is represented in figure
Same or similar part, thus repetition thereof will be omitted.
Implement in addition, described feature, structure or characteristic can be combined in any suitable manner one or more
In example.Embodiments of the invention are fully understood so as to provide there is provided many details in the following description.However,
It will be appreciated by persons skilled in the art that technical scheme can be put into practice without one in the specific detail or more
It is many, or can be using other methods, constituent element, material, device, step etc..In other cases, it is not shown in detail or describes
Known features, method, device, realization, material operate to avoid fuzzy each aspect of the present invention.
Block diagram shown in accompanying drawing is only functional entity, not necessarily must be corresponding with physically separate entity.
I.e., it is possible to realize these functional entitys using software form, or these are realized in the module that one or more softwares are hardened
A part for functional entity or functional entity, or realized in heterogeneous networks and/or processor device and/or microcontroller device
These functional entitys.
The present invention provides a kind of Poewr control method concurrent for multinode in Wireless MESH network and associated section is decorated
Put.
According to the design of the present invention, launch when transmitting node in a time slot application different sub-carrier to multiple receiving nodes and believe
Number when, the transmitting node distributes the transmission power for each receiving node, and the transmission power is related to correspondingly received node.
According to the design of the present invention, when multiple transmitting nodes are sent out in a time slot application different sub-carrier to same receiving node
When penetrating signal, host node provides each transmitting node according to the path loss performance number between each transmitting node and the receiving node
Transmission power recommended value.
The example embodiment conceived according to the technology of the present invention is described with reference to the accompanying drawings.
Fig. 2 shows the Power Control side concurrent for multinode in Wireless MESH network according to an embodiment of the present invention
Method.
Referring to Fig. 2, in S202, when transmitting node is in a time slot application different sub-carrier（For example, OFDM subcarriers）Xiang Duo
During individual receiving node transmission signal, the transmitting node distributes the initial power Pini of each receiving node.
Pini=pathLoss+Signal_level+delta
PathLoss is the path loss performance number between the transmitting node and correspondingly received node, and Signal_level is biography
Normal operating power required for defeated business, delta is the power error value of the correspondingly received node feeding back.
In the scheme of present embodiment, host node will not provide recommended value to the power of transmission signal.Each node point
The size for the transmission power matched somebody with somebody is decided in its sole discretion by transmitting node.Transmitting node needs to consider it between multiple receiving nodes
Path loss etc..
Most starting, delta can be set as 0, then, delta can for example take the value of feedback of previous transmission, but this hair
Bright not limited to this.In addition, according to some embodiments, delta values can regularly update.
In S204, according to the difference and threshold value between each initial power, corresponding initial power is adjusted.For example, can
So that the peak power of multiple nodes is no more than default threshold value with minimum power difference.It can adopt and come in various manners according to institute
The corresponding initial power of difference and adjusting thresholds between each initial power is stated, the application is without limitation.
,, will according to each initial power sum and peak power limit value Pmax after being adjusted by S204 in S206
Each initial power is multiplied by regulation coefficient so that total transmission power is less than the maximum limit value Pmax of power.
According to present embodiment, for same time slot frequency division multiplexing multicast, due to according to node path loss correlation
Information is adjusted to transmission power, and the flexibility of frequency domain resource distribution is improved, and network throughput can get a promotion.
Fig. 3 shows to be used for the concurrent Power Control of multinode in Wireless MESH network according to another embodiment of the invention
Method.
Referring to Fig. 3, in S302, when transmitting node in a time slot application different sub-carrier to multiple receiving node transmission signals
When, the transmitting node distributes each initial power Pini of multiple receiving nodes.
Pini=pathLoss+Signal_level+delta
PathLoss is the path loss performance number between the transmitting node and correspondingly received node, and Signal_level is biography
Normal operating power required for defeated business, delta is the power error value of the correspondingly received node feeding back.
In the scheme of present embodiment, host node will not provide recommended value to the power of transmission signal.Each node point
The size for the transmission power matched somebody with somebody is decided in its sole discretion by transmitting node.Transmitting node needs to consider it between multiple receiving nodes
Path loss etc..
Most starting, delta can be set as 0, then, delta can take the value of feedback of previous transmission, but the present invention is not
It is limited to this.In addition, according to some embodiments, delta values can regularly update.
In S304, difference or difference hundred between maximum initial power and minimum initial power in multiple initial powers are calculated
Divide ratio.But the application not limited to this, it would however also be possible to employ other method carries out power distribution judgement.
In S306, difference or difference percentage are compared with threshold value.Threshold value can be true in advance according to system actual conditions
Fixed, but the application not limited to this.In the case where carrying out difference comparsion, threshold value is a performance number.Carrying out difference percentage
In the case of comparing, threshold value is with percent value.Other various thresholding algorithms can also be used.
In step S308, if the difference or difference percentage are more than the threshold value, the minimum initial power of institute is adjusted,
So that the difference or difference percentage are less than or equal to the threshold value, then, then S304 is performed, until between each initial power
Maximum difference or difference percentage be less than or equal to the threshold value.
In step S310, after power adjustment is completed, total transmission power is calculated.If the total transmission power is more than most
High-power limit value, penalty coefficient is multiplied by by each initial power so that total transmission power is limited less than or equal to the peak power
Definite value.
According to present embodiment, for same time slot frequency division multiplexing multicast, due to according to node path loss correlation
Information is adjusted to transmission power, and the flexibility of frequency domain resource distribution is improved, and network throughput can get a promotion.Separately
Outside, by being compared to adjust minimum initial power with threshold value according to difference or difference percentage, and finally according to total hair
The comparative result for penetrating power and peak power limit value is adjusted again, can be made simple easy according to the adjustment of the power of embodiment
OK.
Fig. 4 shows to be used for the concurrent Power Control of multinode in Wireless MESH network according to another embodiment of the invention
Method.
Referring to Fig. 4, in S402, when multiple transmitting nodes are launched in a time slot application different sub-carrier to same receiving node
During signal, host node determines the Internet resources that multiple transmitting nodes take.In the scheme of present embodiment, deposited in MESH network
In host node.Host node preserves power measurements between each node reported from node etc..Host node determines that multiple one receives
In the case of each transmitting node take Internet resources.
In S404, host node sets multiple transmittings according to the path loss performance number between each transmitting node and receiving node
Each transmission power initial proposed value Pini of node.
Pini=pathLoss+Signal_level
PathLoss is the path loss performance number between the transmitting node and correspondingly received node, and Signal_level is biography
Normal operating power required for defeated business.Subcarrier can be such as OFDM subcarriers.Each node can be preserved on host node
The information on path loss reported.
In S406, host node is adjusted to transmission power initial proposed value.The adjustment process with reference to S304 to S308
The process of description is similar.Specifically, host node by the difference between maximum and minimum value in each transmission power initial proposed value or
Difference percentage is compared with threshold value, if the difference or difference percentage are more than the threshold value, are increased the minimum value, is made
Obtain difference or the difference percentage and be less than or equal to the threshold value, until the maximum between each transmission power initial proposed value is poor
Value or difference percentage are less than or equal to the threshold value.
According to the scheme of present embodiment, because host node is according to the path loss between each transmitting node and receiving node
Performance number provides each transmission power recommended value of each transmitting node, alleviates receiver A/D quantization performances when receiving weak signal
By being influenceed so that weak signal is less affected by the influence of strong signal frequency deviation, reduces inter-sub-carrier interference.
Fig. 5 shows the node apparatus for Wireless MESH network according to an embodiment of the present invention.
As shown in figure 5, the node apparatus 500 for Wireless MESH network may include power distribution module 550.Power distribution
Module 550 be used for when the node in a time slot application different sub-carrier to multiple receiving node transmission signals when, distributing is used for
The transmission power of each receiving node, each transmission power is related to correspondingly received node.
Power distribution module 550 may include that initial power distribute module 502, power regulation module 504 and power are adjusted again
Module 506.
According to an embodiment, initial power distribute module 502 is used for the initial power for distributing each receiving node.It is described each first
Beginning power can be equal to pathLoss+Signal_level+delta, and pathLoss is between the node and correspondingly received node
Path loss performance number, Signal_level is the normal operating power required for transmission services, and delta is accordingly connect to be described
Receive the power error value of node feeding back.Power regulation module 504 is used for according to the difference and threshold value between each initial power,
Adjust corresponding initial power.Adjusting module 506 is used for after the power regulation module completes power adjustment power again, root
According to each initial power sum and peak power limit value, each initial power is multiplied by regulation coefficient.
According to another embodiment, power regulation module 504 is used at the beginning of maximum initial power in each initial power and minimum
Difference or difference percentage between beginning power are compared with threshold value, if the difference or difference percentage are more than the threshold value,
The minimum initial power is then adjusted so that difference or the difference percentage is less than or equal to the threshold value, until each initial
Maximum difference or difference percentage between power are less than or equal to the threshold value.Adjusting module 506 is used for described power again
Power regulation module is completed after power adjustment, calculates total transmission power, if the total transmission power is limited more than peak power
Definite value, penalty coefficient is multiplied by by each initial power so that total transmission power is less than or equal to the peak power limit value.
Node apparatus 500 for Wireless MESH network can realize the foregoing present invention that 2-3 is described referring to the drawings
Design, is repeated no more with foregoing similar explanation.
Fig. 6 shows the node apparatus for Wireless MESH network according to another embodiment of the invention.
As shown in fig. 6, the node apparatus 600 for Wireless MESH network may include power distribution module 650, memory module
660 and control module 670.Node apparatus 600 can be foregoing host node.
Power distribution module 650 is used for when multiple transmitting nodes in a time slot application different sub-carrier to same receiving node
During transmission signal, each of each transmitting node is provided according to the path loss performance number between each transmitting node and the receiving node
Transmission power recommended value.
Memory module 660 can be used for preserving the information on path loss that each node is reported.
Control module 670 can be used for the Internet resources for determining that the multiple transmitting node takes.
Power distribution module 650 may include initial power distribute module 602 and power regulation module 604.
According to an embodiment, initial power module 602 can be used at the beginning of setting each transmission power of the multiple transmitting node
Beginning recommended value, each transmission power initial proposed value is equal to pathLoss+Signal_level, and pathLoss is corresponding transmitting node
Path loss performance number between the receiving node, Signal_level is the normal work work(required for transmission services
Rate.Power regulation module 604 can be used for the difference or difference between maximum and minimum value in each transmission power initial proposed value
Percentage is compared with threshold value, if the difference or difference percentage are more than the threshold value, increases the minimum value so that institute
State difference or difference percentage and be less than or equal to the threshold value, until maximum difference between each transmission power initial proposed value or
Difference percentage is less than or equal to the threshold value.
Node apparatus 600 for Wireless MESH network can realize the present invention structure of foregoing 4 descriptions referring to the drawings
Think, repeated no more with foregoing similar explanation.
Fig. 7 shows the node apparatus for Wireless MESH network according to another embodiment of the invention.
As shown in fig. 7, the node apparatus 700 for Wireless MESH network may include processor 702, memory 704, transmitting
Device 706 and receiver 708.
Memory 704 can store the instruction that operation processing is performed for processor 702.The memory 504 of memory 704 can be wrapped
Include volatibility or nonvolatile memory, such as static RAM（SRAM）, Electrically Erasable Read Only Memory
（EEPROM）, Erasable Programmable Read Only Memory EPROM（EPROM）, programmable read only memory（PROM）, read-only storage（ROM）
Deng the present invention is not limited in this respect.
Processor 702 can call the instruction that is stored in memory 704 to perform associative operation, such as control transmitter 706 and connect
Receive device 708 and carry out signal transmitting and receiving etc..
According to an embodiment, memory 704 is stored completes the instruction that operates below for processor 702：When the transmitting
Device is distributed for each of the multiple receiving node when a time slot application different sub-carrier is to multiple receiving node transmission signals
Transmission power, and each transmission power of distribution is related to correspondingly received node.It is used for it can be readily appreciated that memory 704 can also be stored
Processor 702 completes the instruction of other operations according to embodiments of the present invention, repeats no more here.
According to another embodiment, memory 704 is stored completes the instruction that operates below for processor 702：When multiple hairs
Node is penetrated when a time slot application different sub-carrier is to same receiving node transmission signal, is received according to each transmitting node with described
Path loss performance number between node provides each transmission power recommended value of the multiple transmitting node.It can be readily appreciated that storage
Device 704 can also store the instruction that other operations according to embodiments of the present invention are completed for processor 702, repeat no more here.
Detailed description more than, those skilled in the art it can be readily appreciated that system according to embodiments of the present invention and
Method has one or more of the following advantages.
For same time slot frequency division multiplexing multicast, due to being entered according to node path loss correlation information to transmission power
Row adjustment, the flexibility of frequency domain resource distribution is improved, and network throughput can get a promotion.
By being compared to adjust minimum initial power according to difference or difference percentage and threshold value, and finally according to
Total transmission power and the comparative result of peak power limit value are adjusted again, can be made simple according to the adjustment of the power of embodiment
It is easy.
Host node provides each of each transmitting node according to the path loss performance number between each transmitting node and receiving node
Transmission power recommended value, alleviates the receiver influence that A/D quantization performances are subject to when receiving weak signal so that weak signal is less
It can be influenceed by strong signal frequency deviation, reduce inter-sub-carrier interference.
By more than embodiment description, those skilled in the art it can be readily appreciated that the method for the embodiment of the present invention and
Corresponding module can be realized by way of software or partial software hardening.Therefore, the technical scheme of the embodiment of the present invention can
To be embodied in the form of software product, the software product can be stored in a non-volatile memory medium（Can be CD-
ROM, USB flash disk, mobile hard disk etc.）In, including some instructions are to cause a computing device（Can be personal computer, service
Device, mobile terminal or network equipment etc.）Perform method according to embodiments of the present invention.
It will be understood by those skilled in the art that accompanying drawing is the schematic diagram of example embodiment, module or flow in accompanying drawing
Not necessarily implement the present invention necessary, therefore cannot be used for limiting the scope of the invention.
It will be appreciated by those skilled in the art that above-mentioned each module can be distributed in device according to the description of embodiment, also may be used
It is disposed other than with carrying out respective change in one or more devices of the present embodiment.The module of above-described embodiment can be merged into
One module, can also be further split into multiple submodule.
The exemplary embodiment of the present invention is particularly shown and described above.It should be understood that the invention is not restricted to sent out
Bright embodiment, on the contrary, it is intended to cover comprising various modifications in the spirit and scope of the appended claims and wait
Effect arrangement.
Claims (21)
1. a kind of be used for the concurrent Poewr control method of multinode in Wireless MESH network, it is characterised in that including：
When transmitting node in a time slot application different sub-carrier to multiple receiving node transmission signals when, transmitting node distribution
For each transmission power of the multiple receiving node, and each transmission power of distribution is related to correspondingly received node.
2. Poewr control method as claimed in claim 1, it is characterised in that the transmitting node is distributed to be connect for the multiple
Receiving each transmission power of node includes：
The transmitting node distributes each initial power for the multiple receiving node, and each initial power is equal to
PathLoss+Signal_level+delta, pathLoss damage for the path between the transmitting node and correspondingly received node
Performance number is consumed, Signal_level is the normal operating power required for transmission services, and delta is that the correspondingly received node is anti-
The power error value of feedback；
According to the difference and threshold value between each initial power, corresponding initial power is adjusted；
After adjustment is completed, according to each initial power sum and peak power limit value, each initial power is multiplied by adjustment system
Number.
3. Poewr control method as claimed in claim 1, it is characterised in that the transmitting node is distributed to be connect for the multiple
Receiving each transmission power of node includes：
The transmitting node distributes each initial power for the multiple receiving node, and each initial power is equal to pathLoss+
Signal_level+delta, pathLoss are the path loss performance number between the transmitting node and correspondingly received node,
Signal_level is the normal operating power required for transmission services, and delta is the power of the correspondingly received node feeding back
Error amount；
Difference or difference percentage in each initial power between maximum initial power and minimum initial power is compared with threshold value,
If the difference or difference percentage are more than the threshold value, the minimum initial power is adjusted so that the difference or difference
It is worth percentage and is less than or equal to the threshold value, until the maximum difference or difference percentage between each initial power is less than or equal to
The threshold value；
After adjustment is completed, total transmission power is calculated, will be each first if the total transmission power is more than peak power limit value
Beginning power is multiplied by penalty coefficient so that total transmission power is less than or equal to the peak power limit value.
4. Poewr control method as claimed in claim 1, it is characterised in that the subcarrier is OFDM subcarriers.
5. Poewr control method as claimed in claim 2 or claim 3, it is characterised in that delta initial value is zero.
6. Poewr control method as claimed in claim 1, it is characterised in that each transmission power and the transmitting node with
The path loss performance number of correspondingly received node is related.
7. a kind of be used for the concurrent Poewr control method of multinode in Wireless MESH network, it is characterised in that including：
When multiple transmitting nodes in a time slot application different sub-carrier to same receiving node transmission signal when, host node is according to each
Each transmission power that path loss performance number between transmitting node and the receiving node provides the multiple transmitting node is built
View value.
8. Poewr control method as claimed in claim 7, it is characterised in that each transmission power recommended value passes through following mistake
Journey is obtained：
Each transmission power initial proposed value for the multiple transmitting node is set, each transmission power initial proposed value is equal to
PathLoss+Signal_level, pathLoss are the path loss power between corresponding transmitting node and the receiving node
Value, Signal_level is the normal operating power required for transmission services；
Difference or difference percentage between maximum and minimum value in each transmission power initial proposed value is compared with threshold value, if
Difference or the difference percentage is more than the threshold value, then increases the minimum value so that difference or the difference percentage is small
In or equal to the threshold value, until the maximum difference or difference percentage between each transmission power initial proposed value are less than or equal to
The threshold value.
9. Poewr control method as claimed in claim 8, it is characterised in that the subcarrier is OFDM subcarriers.
10. Poewr control method as claimed in claim 7, it is characterised in that the host node preserves the road that each node is reported
Information is lost in footpath.
11. Poewr control method as claimed in claim 7, it is characterised in that also include：The host node determines the multiple
The Internet resources that transmitting node takes.
12. a kind of node apparatus for Wireless MESH network, it is characterised in that including：
Power distribution module, for when the node in a time slot application different sub-carrier to multiple receiving node transmission signals
When, each transmission power for the multiple receiving node is distributed, and each transmission power of distribution is related to correspondingly received node.
13. node apparatus as claimed in claim 12, it is characterised in that the power distribution module includes：
Initial power distribute module, each initial power for distributing the multiple receiving node, each initial power is equal to
PathLoss+Signal_level+delta, pathLoss are the path loss work(between the node and correspondingly received node
Rate value, Signal_level is the normal operating power required for transmission services, and delta is the correspondingly received node feeding back
Power error value；
Power regulation module, for according to the difference and threshold value between each initial power, adjusting corresponding initial power；
Power adjusting module again, after completing power adjustment in the power regulation module, according to each initial power sum
And peak power limit value, each initial power is multiplied by regulation coefficient.
14. node apparatus as claimed in claim 12, it is characterised in that the power distribution module includes：
Initial power distribute module, each initial power for distributing the multiple receiving node, each initial power is equal to
PathLoss+Signal_level+delta, pathLoss are the path loss work(between the node and correspondingly received node
Rate value, Signal_level is the normal operating power required for transmission services, and delta is the correspondingly received node feeding back
Power error value；
Power regulation module, for by the difference or difference between maximum initial power in each initial power and minimum initial power
Percentage is compared with threshold value, if the difference or difference percentage are more than the threshold value, adjusts the minimum initial power,
So that the difference or difference percentage are less than or equal to the threshold value, until maximum difference or difference between each initial power
Percentage is less than or equal to the threshold value；
Power adjusting module again, after completing power adjustment in the power regulation module, calculates total transmission power, if
The total transmission power is more than peak power limit value, each initial power is multiplied by into penalty coefficient so that total transmission power is less than
Or equal to the peak power limit value.
15. the node apparatus as described in claim 13 or 14, it is characterised in that delta initial value is zero.
16. a kind of node apparatus for Wireless MESH network, it is characterised in that including：
Power distribution module, believes for launching when multiple transmitting nodes in a time slot application different sub-carrier to same receiving node
Number when, each of the multiple transmitting node is provided according to the path loss performance number between each transmitting node and the receiving node
Transmission power recommended value.
17. node apparatus as claimed in claim 16, it is characterised in that the power distribution module includes：
At the beginning of initial power module, each transmission power initial proposed value for setting the multiple transmitting node, each transmission power
Beginning recommended value is equal to pathLoss+Signal_level, and pathLoss is between corresponding transmitting node and the receiving node
Path loss performance number, Signal_level is the normal operating power required for transmission services；
Power regulation module, for by the difference or difference percentage between maximum and minimum value in each transmission power initial proposed value
Than being compared with threshold value, if the difference or difference percentage are more than the threshold value, increase the minimum value so that the difference
Value or difference percentage are less than or equal to the threshold value, until maximum difference or difference between each transmission power initial proposed value
Percentage is less than or equal to the threshold value.
18. node apparatus as claimed in claim 16, it is characterised in that also including memory module, for preserving each node
Information on path loss between the node of report.
19. node apparatus as claimed in claim 16, it is characterised in that also including control module, the multiple for determining
The Internet resources that transmitting node takes.
20. a kind of node apparatus for Wireless MESH network, it is characterised in that including：
Transmitter；
Receiver；
Processor；
Memory, stores the instruction that following operation is completed for the processor：
When the transmitter in a time slot application different sub-carrier to multiple receiving node transmission signals when, distribute for described many
Each transmission power of individual receiving node, and each transmission power of distribution is related to correspondingly received node.
21. a kind of node apparatus for Wireless MESH network, it is characterised in that including：
Transmitter；
Receiver；
Processor；
Memory, stores the instruction that following operation is completed for the processor：
When multiple transmitting nodes in a time slot application different sub-carrier to same receiving node transmission signal when, according to it is each transmitting save
Path loss performance number between point and the receiving node provides each transmission power recommended value of the multiple transmitting node.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016101258698 | 2016-03-04 | ||
| CN201610125869.8A CN105792342A (en) | 2016-03-04 | 2016-03-04 | Power control method and node device |
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| CN107155210A true CN107155210A (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610125869.8A Pending CN105792342A (en) | 2016-03-04 | 2016-03-04 | Power control method and node device |
| CN201710128738.XA Pending CN107155210A (en) | 2016-03-04 | 2017-03-06 | Poewr control method and node apparatus |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610125869.8A Pending CN105792342A (en) | 2016-03-04 | 2016-03-04 | Power control method and node device |
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| WO (1) | WO2017148448A1 (en) |
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| CN106793028B (en) * | 2016-11-29 | 2020-08-28 | 海能达通信股份有限公司 | Control method of transmission power and user equipment |
| CN112261636B (en) * | 2020-10-23 | 2023-07-11 | 展讯通信（上海）有限公司 | Communication method, apparatus, and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123490A (en) * | 2011-04-21 | 2011-07-13 | 重庆大学 | Power distribution method of two-way multi-hop network based on physical layer network coding |
| CN102143588A (en) * | 2011-03-15 | 2011-08-03 | 东南大学 | Resource-allocating method for multi-user multi-relay communication system |
| CN102835037A (en) * | 2010-03-10 | 2012-12-19 | 富士通株式会社 | System and method for implementing power allocation |
| WO2014071308A1 (en) * | 2012-11-02 | 2014-05-08 | Interdigital Patent Holdings, Inc. | Power control methods and procedures for wireless local area networks |
-
2016
- 2016-03-04 CN CN201610125869.8A patent/CN105792342A/en active Pending
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2017
- 2017-03-06 WO PCT/CN2017/075793 patent/WO2017148448A1/en active Application Filing
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835037A (en) * | 2010-03-10 | 2012-12-19 | 富士通株式会社 | System and method for implementing power allocation |
| CN102143588A (en) * | 2011-03-15 | 2011-08-03 | 东南大学 | Resource-allocating method for multi-user multi-relay communication system |
| CN102123490A (en) * | 2011-04-21 | 2011-07-13 | 重庆大学 | Power distribution method of two-way multi-hop network based on physical layer network coding |
| WO2014071308A1 (en) * | 2012-11-02 | 2014-05-08 | Interdigital Patent Holdings, Inc. | Power control methods and procedures for wireless local area networks |
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| CN105792342A (en) | 2016-07-20 |
| WO2017148448A1 (en) | 2017-09-08 |
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