CN106454950A - Load balancing method based on WiFi chip television white spectrum communication system - Google Patents
Load balancing method based on WiFi chip television white spectrum communication system Download PDFInfo
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- CN106454950A CN106454950A CN201610915734.1A CN201610915734A CN106454950A CN 106454950 A CN106454950 A CN 106454950A CN 201610915734 A CN201610915734 A CN 201610915734A CN 106454950 A CN106454950 A CN 106454950A
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- honeycomb
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- load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a load balancing method based on a WiFi chip television white spectrum communication system. The method comprises when receiving a load balancing message, pre-estimating flow during crowding, predicating rush hours and recording the message and crowding value and the like. The method realizes load balance and high availability of a terminal in a network, prevents large single-node pressure and resource waste of other nodes and improves whole performance and stability of the system.
Description
Technical field
The invention belongs to DTV and wireless communication technology field.Specifically related to a kind of based on the white frequency of WiFi chip TV
The load-balancing method of spectrum communication system.
Background technology
Terminal in a network has mobility.Accordingly, it would be desirable to automatically process the switching between adjacent cell, but need to examine
Consider some following factors：1. when a more crowded and adjacent honeycomb of honeycomb is not but crowded.2. ought insert in a network
New honeycomb.Under normal circumstances, network is the level for not knowing each terminal, does not therefore also just know and moves to other honeycombs
The impact of Shi Zaocheng.Therefore network can only suggested terminals using which type of configure.Network is the crowded journey for knowing each base station
Degree.When a base station appearance is crowded, adjacent base station portion is crowded, and network will carry out load balancing operation.Believed by control
Breath notifies the terminal being attached on crowded base station to be attached on not crowded base station.Terminal is with regard to oneself decision-making, if be attached to
On adjacent base station, whether whether this have reasonable covering depending on adjacent base station and have in following several hours
Preferably flow can be used.Such as, typically intelligent electric meter will not be handed over to a new honeycomb, because, the letter being related to
Order may be higher than sending the cost of message.So it is equal to need a kind of load based on the white spectrum system of WiFi chip TV badly
Weighing apparatus method is solving the above problems.
Content of the invention
The invention aims to overcoming above-mentioned not enough one kind that provides based on the white spectrum system of WiFi chip TV
Load-balancing method.
A kind of load-balancing method based on the white spectrum system of WiFi chip TV, comprises the following steps：Work as reception
During to a load balance message, the flow of crowded period is just estimated, the rush hours, record message and crowded numerical value is predicted,
If the flow of crowded period is less than the signalling loads from a honeycomb to another honeycomb, action command is not sent, such as
The flow of really crowded period is more than or equal to the signalling loads from a honeycomb to another honeycomb, then turn next step；Test
The signal level of adjacent cell, estimates the spreading factor of two honeycombs, and calculates spreading factor difference；To move to all of
Honeycomb, check SPF tree, select the honeycomb of maximum SPF tree；If the SPF tree of maximum>0.9 just switched in 5 minutes at random,
If maximum SPF tree<0.3, then do not switch over.
When the maximum SPF tree is between 0.3-0.9, switching time is calculated according to below equation：Switching time=pre-
Survey the rush hours * (1-SPF tree), the SPF tree=crowding factor × message factor/spreading factor difference, wherein：When crowded<50%
When, crowding factor=1, when crowded>When 90%, crowding factor=0, when crowded between 50%-90% when, crowding factor=1-
((crowded -0.5) × 2.5), work as message>During 1500bits, the message factor=1, work as message<During 150bits, the message factor=0,
When message is between 150bits-1500bits, the message factor=(message -150) × (150/135)).
When there are multiple frequencies a base station, load balancing is carried out on different frequencies.
If new honeycomb is added in existing network, only former terminal is added without new terminal, terminal
Still it is attached on existing honeycomb, rather than is attached on new honeycomb, all terminals in honeycomb is forced to carry out new
Scanning, was carried out once per 24 hours.
The time started of the prediction the rush hours is that processing from starting state is elected in node, then obtains
Other process the load capacity information of node and carry out the distribution of data processing task, the termination time of the prediction the rush hours
It is each process node historical responses temporal summation.
Present invention achieves the load balancing of terminal in network and high availability, it is to avoid single-unit point pressure is big, other
Node resource is wasted, and is improved the overall performance of system and is stablized.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated：
A kind of load-balancing method based on the white spectrum system of WiFi chip TV, comprises the following steps：Work as reception
During to a load balance message, the flow of crowded period is just estimated, the rush hours, record message and crowded numerical value is predicted,
If the flow of crowded period is less than the signalling loads from a honeycomb to another honeycomb, action command is not sent, such as
The flow of really crowded period is more than or equal to the signalling loads from a honeycomb to another honeycomb, then turn next step；Test
The signal level of adjacent cell, estimates the spreading factor of two honeycombs, and calculates spreading factor difference；To move to all of
Honeycomb, check SPF tree, select the honeycomb of maximum SPF tree；If the SPF tree of maximum>0.9 just switched in 5 minutes at random,
If maximum SPF tree<0.3, then do not switch over.
When the maximum SPF tree is between 0.3-0.9, switching time is calculated according to below equation：Switching time=pre-
Survey the rush hours * (1-SPF tree), the SPF tree=crowding factor × message factor/spreading factor difference, wherein：When crowded<50%
When, crowding factor=1, when crowded>When 90%, crowding factor=0, when crowded between 50%-90% when, crowding factor=1-
((crowded -0.5) × 2.5), work as message>During 1500bits, the message factor=1, work as message<During 150bits, the message factor=0,
When message is between 150bits-1500bits, the message factor=(message -150) × (150/135)).
When there are multiple frequencies a base station, load balancing is carried out on different frequencies.
If new honeycomb is added in existing network, only former terminal is added without new terminal, terminal
Still it is attached on existing honeycomb, rather than is attached on new honeycomb, all terminals in honeycomb is forced to carry out new
Scanning, was carried out once per 24 hours.
The time started of the prediction the rush hours is that processing from starting state is elected in node, then obtains
Other process the load capacity information of node and carry out the distribution of data processing task, the termination time of the prediction the rush hours
It is each process node historical responses temporal summation.
In this step, the network terminal can be realized by WiFi to the real-time monitoring of honeycomb.Cellular abscess when system
After changing, partly belong to the process task in the node for changing originally and will be unable to continue executing with, the network terminal listens to this
Abnormal, the equilibrium assignment of waiting task is re-started according to remaining honeycomb.
Increase some honeycombs in system newly, for the process resource of these newly-increased honeycombs not idle and system effectiveness is improved, institute
State the network terminal also can be according to re-starting the equilibrium assignment of waiting task to realize more preferable load according to remaining honeycomb
Balanced.
In the present embodiment, by the network terminal, honeycomb is monitored in real time, and added new honeycomb in system, divided again
Join waiting task.
Each honeycomb works independently, and the network terminal is monitored, to determine whether the network terminal sends connection request.?
In the case of listening to network terminal transmission connection request, it is to ensure the request load balancing on each honeycomb, can is that basis is many
The connection request order that individual user sends, according to arriving first the order that first processes.
Claims (5)
1. a kind of load-balancing method based on the white spectrum system of WiFi chip TV, it is characterised in that including following step
Suddenly：The flow of crowded period when a load balance message is received, is just estimated, the rush hours is predicted, record message and gather around
Crowded numerical value, if the flow of crowded period is less than the signalling loads from a honeycomb to another honeycomb, does not send dynamic
Instruct, if the flow of crowded period is more than or equal to the signalling loads from a honeycomb to another honeycomb, under turning
One step；The signal level of test adjacent cell, estimates the spreading factor of two honeycombs, and calculates spreading factor difference；To all
Honeycomb to be moved to, check SPF tree, select the honeycomb of maximum SPF tree；If the SPF tree of maximum>0.9 just in 5 minutes
Random switching, if maximum SPF tree<0.3, then do not switch over.
2. the load-balancing method based on the white spectrum system of WiFi chip TV according to claim 1, its feature
It is that switching time is calculated according to below equation when the maximum SPF tree is between 0.3-0.9：Switching time=prediction is gathered around
Find time * (1-SPF tree), the SPF tree=crowding factor × message factor/spreading factor difference, wherein：When crowded<When 50%, gather around
The crowded factor=1, when crowded>When 90%, crowding factor=0, when crowded between 50%-90% when, crowding factor=1- ((crowded-
0.5) × 2.5), work as message>During 1500bits, the message factor=1, work as message<During 150bits, the message factor=0, work as message
Between 150bits-1500bits when, the message factor=(message -150) × (150/135)).
3. the load-balancing method based on the white spectrum system of WiFi chip TV according to claim 1, its feature
It is, when there are multiple frequencies a base station, to carry out load balancing on different frequencies.
4. the load-balancing method based on the white spectrum system of WiFi chip TV according to claim 1, its feature
It is if new honeycomb is added in existing network, only former terminal is added without new terminal, and terminal remains unchanged
It is attached on existing honeycomb, rather than is attached on new honeycomb, all terminals in honeycomb is forced new scanning is carried out,
Carried out once per 24 hours.
5. the load-balancing method based on the white spectrum system of WiFi chip TV according to claim 1, its feature
It is that the time started for predicting the rush hours is that processing from starting state is elected in node, then obtains other
Process the load capacity information of node and the distribution of data processing task is carried out, the termination time of the prediction the rush hours is every
Node historical responses temporal summation is processed described in one.
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| CN201610915734.1A CN106454950B (en) | 2016-10-20 | 2016-10-20 | Load balancing method based on WiFi chip television white spectrum communication system |
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| CN201610915734.1A CN106454950B (en) | 2016-10-20 | 2016-10-20 | Load balancing method based on WiFi chip television white spectrum communication system |
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| CN106454950A true CN106454950A (en) | 2017-02-22 |
| CN106454950B CN106454950B (en) | 2020-02-14 |
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| US20150105083A1 (en) * | 2012-01-24 | 2015-04-16 | Broadcom Corporation | Modified Measurement Procedures for User Equipments |
| CN105188091A (en) * | 2015-09-17 | 2015-12-23 | 山东财经大学 | Load balancing method based on forced switching in heterogeneous wireless network system |
| CN105992296A (en) * | 2015-01-28 | 2016-10-05 | 中国移动通信集团公司 | Terminal switching method and device |
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2016
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Patent Citations (5)
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| CN1350374A (en) * | 2000-10-19 | 2002-05-22 | 华为技术有限公司 | Multiple-job load monitoring and forecasting device in CDMA cellular communication system and its calculation method |
| US20150105083A1 (en) * | 2012-01-24 | 2015-04-16 | Broadcom Corporation | Modified Measurement Procedures for User Equipments |
| CN102905307A (en) * | 2012-09-12 | 2013-01-30 | 北京邮电大学 | System for realizing joint optimization of neighbor cell list and load balance |
| CN105992296A (en) * | 2015-01-28 | 2016-10-05 | 中国移动通信集团公司 | Terminal switching method and device |
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Effective date of registration: 20200201 Address after: 610000 No.203, floor 2, No.22, Jinsi street, Qingyang District, Chengdu City, Sichuan Province Applicant after: Chengdu Jingyuan network technology partnership (limited partnership) Address before: 610000 Sichuan city of Chengdu province Chengdu Tianfu Avenue in the middle of the 666 No. 2 Building 8 floor No. 802 Applicant before: Chengdu Feng Feng Communication Technology Co., Ltd. |