CN104427506B - A kind of method for adjusting wireless network - Google Patents
A kind of method for adjusting wireless network Download PDFInfo
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- CN104427506B CN104427506B CN201310391019.9A CN201310391019A CN104427506B CN 104427506 B CN104427506 B CN 104427506B CN 201310391019 A CN201310391019 A CN 201310391019A CN 104427506 B CN104427506 B CN 104427506B
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- base station
- uplink interference
- wireless network
- same frequency
- cell coverage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
-
- 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
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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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
- H04W52/362—Aspects of the step size
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A kind of method for adjusting wireless network, the described method includes：User UE all in wireless network is traveled through, determines the affiliated subdistrict of each UE；Transmit power according to the UE in UE affiliated subdistricts obtains the uplink interference to same frequency base station；The uplink interference of same frequency base station and cell coverage adjustment wireless network are received according to each base station.After the embodiment of the present invention, wireless network is adjusted with reference to interference source in up going route, so as to ensure the normal use wireless network of most of user.
Description
Technical field
This application involves field of communication technology, more particularly, to a kind of method for adjusting wireless network.
Background technology
In wireless network planning, interference problem that need to be in consideration system.The interference of wireless communication refers to wireless signal
All influential factors of the quality of reception include the influence of various noises, but the more than influence of noise, it may be possible to which other are wireless
The influence of system, it is also possible to be the influence of same frequency or alien frequencies signal to signal in the range of system operating frequency.
Either sectorization networking or omnidirectional antenna and directional aerial networking, the position of base station and transmit power are
Determine value, therefore base station is fixed interference source to the downlink interference of terminal.Suitable propagate is selected under different channel circumstances
Model can obtain more accurate downlink by link budget and disturb.For some wireless communication systems based on uplink service
In system, including electric system, petroleum system etc., the parametric programming of up channel is also essential, it is therefore desirable to more accurate
Simulation uplink interference.Uplink interference is the interference of terminal-pair base station, and in resource allocation, the occupied resource of terminal is not true
Fixed, therefore interference source is also random.
At present, in wireless network planning, following two modes are substantially used to the simulation of uplink interference, first, setting
Fixed uplink interference surplus；Second is that a uplink average interference value is obtained by the method for Monte Carlo simulation multiple " snapshot "
As interference margins.Both approaches are fixed values for the uplink interference value of all users in serving cell, can not
The real signal quality for reflecting uplink.For the second-rate user of part signal be it is inequitable, it is fixed dry
Disturbing surplus or average interference value causes it that can not work, but actual in the case where uplink interference value is smaller, these use
Family can work.Therefore above-mentioned simulation uplink interference can play the directive function of mistake to a certain extent.
Wireless network is adjusted according to above-mentioned simulation uplink interference, since simulation uplink interference not fully meets reality in itself
Situation, therefore can not ensure the normal use of most of user according to the wireless network of simulation uplink interference adjustment.
The content of the invention
The embodiment of the present invention proposes a kind of method for adjusting wireless network, and wireless network is adjusted with reference to actual interference source in up going route
Network, so as to ensure the normal use wireless network of most of user.
The technical solution of the embodiment of the present invention is as follows：
A kind of method for adjusting wireless network, the described method includes：
User UE all in wireless network is traveled through, determines the affiliated subdistrict of each UE；
Transmit power according to the UE in UE affiliated subdistricts obtains the uplink interference to same frequency base station；
The uplink interference of same frequency base station and cell coverage adjustment wireless network are received according to each base station.
The affiliated subdistrict for determining each UE includes：
By the maximum in the Reference Signal Received Power RSRP of UE to each base station, the affiliated subdistrict of each UE is determined.
The transmit power acquisition of foundation UE in UE affiliated subdistricts includes the uplink interference of same frequency base station：
It is obtained according to the transmit power of UE in UE affiliated subdistricts and UE to other with the propagation model of frequency base station to same frequency
The uplink interference of base station.
The each base station of basis, which receives the uplink interference of same frequency base station and cell coverage adjustment wireless network, to be included：
It is received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is more than or equal to
90%, then do not adjust wireless network.
The each base station of basis, which receives the uplink interference of same frequency base station and cell coverage adjustment wireless network, to be included：
It being received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is less than 90%,
It is received in each base station under the minimum uplink interference in the uplink interference of same frequency base station, cell coverage is more than or equal to 90%, then exists
Each base station is received in the uplink interference of same frequency base station under random uplink interference, and cell coverage is more than or equal to 90%, then does not adjust
Wireless network.
The each base station of basis, which receives the uplink interference of same frequency base station and cell coverage adjustment wireless network, to be included：
It being received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is less than 90%,
It is received in each base station under the minimum uplink interference in the uplink interference of same frequency base station, cell coverage is less than 90%, then adjusts nothing
Gauze network.
The each base station of basis, which receives the uplink interference of same frequency base station and cell coverage adjustment wireless network, to be included：
It being received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is less than 90%,
It is received in each base station under the minimum uplink interference in the uplink interference of same frequency base station, cell coverage is more than or equal to 90%, then exists
Each base station is received in the uplink interference of same frequency base station under random uplink interference, and cell coverage is less than 90%, then adjusts wireless network
Network.
The adjustment wireless network includes：For cell of the cell coverage less than 90% base station height is adjusted for step-length with 5 meters
Degree either using 2dBm be step-length increase base-station transmitting-power or adjust directional aerial deflection make main lobe direction try one's best pair
Standard covers poor region.
As can be seen that traveling through user all in wireless network first in embodiments of the present invention from above-mentioned technical proposal
UE determines the affiliated subdistrict of each UE；Transmit power according to the UE in UE affiliated subdistricts, which obtains, does the uplink of same frequency base station
It disturbs；The uplink interference of same frequency base station and cell coverage adjustment wireless network are received according to each base station.By combining reality
Interference source in up going route adjusts wireless network, so as to ensure the normal use wireless network of most of user.
Description of the drawings
Fig. 1 is the method flow schematic diagram for improving performance of handoffs in heterogeneous network.
Specific embodiment
It must be more clearly understood to express the object, technical solutions and advantages of the present invention, below in conjunction with the accompanying drawings and specifically
The present invention is further described in more detail for embodiment.
In embodiments of the present invention, UE all in wireless network is traveled through first, determines the affiliated subdistrict of each UE；Foundation
The transmit power of UE obtains the uplink interference to same frequency base station in UE affiliated subdistricts；Same frequency base station is received according to each base station
Uplink interference and cell coverage adjustment wireless network.Uplink interference has very big shadow for user's normal use wireless network
It rings, adjusts wireless network by combining actual interference source in up going route, it is possible to ensure the normal use wireless network of most of user
Network.
1 technical solution that the present invention will be described in detail below in conjunction with the accompanying drawings, specifically includes following steps：
101st, user UE all in wireless network is traveled through, determines the affiliated subdistrict of each UE.
All UE in wireless network is traveled through, according to the RSRP sizes of UE to each base station, selects the maximum pair of RSRP
The cell answered is as the UE affiliated subdistricts.
102nd, the transmit power according to the UE in UE affiliated subdistricts obtains the uplink interference to same frequency base station.
UE determines affiliated subdistrict i.e. main serving cell, and the transmit power of UE is obtained according to Power Control of the prior art.
Then, by the transmit power and UE of UE to other with the propagation model of frequency base station, obtain UE to other with the uplink of frequency base station
Interference.Wherein UE is determined to other with the communication mode of frequency base station according to the prior art.
The memory of uplink interference under each base station is set, stores other with all user terminals under frequency base station to this base station
Interference.
103rd, the uplink interference of same frequency base station is received according to each base station and cell coverage adjusts wireless network.
There is uplink interferences of each same all UE in frequency base station to this base station with frequency base station stored in each base station, obtain each
All most strong jamming values and are added up to obtain most strong uplink by the UE with frequency base station to the most strong uplink interference value of own base station
Interference.
The UE of each same frequency base station is obtained to the minimum uplink interference value of own base station, and all least interference values are carried out
It is cumulative to obtain minimum uplink interference.
A UE in each same frequency base station is randomly choosed to the uplink random interference value of own base station, and by random disturbances
Value is added up to obtain random uplink interference.
According to most strong uplink interference, minimum uplink interference and random disturbances adjustment wireless network.With the prior art compared with,
Using the non-static value adjustment wireless network of above three, that is, combine actual interference source in up going route adjustment wireless network.
Wireless network is specifically adjusted by the way of following：
Scheme one
During using most strong uplink interference, cell coverage reaches more than 90%, even if cell portion used terminal can be specified
When in interfered cell being all most strong uplink interference, still it can work normally, then uplink is not the bottleneck of wireless network,
Wireless network need not be adjusted.
Scheme two
During using most strong uplink interference, cell coverage is not up to 90% and is less than 90%, then small using minimum uplink interference
Area's coverage rate is more than or equal to 90%, then using random uplink interference, cell coverage is more than or equal to 90%, then illustrates, without adjustment
Wireless network.
It due to minimum uplink interference, can only ensure that coverage rate is met the requirements in the case where disturbing minimum, and do at random
Coverage rate requirement may not be met in the case of source by disturbing, it is therefore desirable to when in minimum uplink interference, coverage rate is more than or equal to 90%, then be adopted
With random uplink interference.In the case of most strong uplink interference, cell portion is to be unsatisfactory for coverage rate demand, but in random uplink
Under disturbed condition, meet coverage rate demand, then illustrate more than 90% user is in the case where not being most strong uplink interference
It can work, there is no need to revised planning parameters.
Scheme three
During using most strong uplink interference, cell coverage is not up to 90% and is less than 90%, then small using minimum uplink interference
Area's coverage rate is less than 90%, then needs to be adjusted wireless network.Illustrate during such case, even in minimum uplink interference
In the case of, coverage rate still not satisfies requirement, then it is that can not work certainly that explanation, which has more than 10% user, it is necessary to parameter
It adjusts.
Following any way adjustment may be employed：For cell of the cell coverage less than 90% base is adjusted for step-length with 5 meters
Height of standing either uses up main lobe direction by the deflection that step-length increases base-station transmitting-power or adjusts directional aerial of 2dBm
Amount alignment covers poor region.
To the wireless network after adjustment, then 101 are performed, readjust wireless network.
Scheme four
During using most strong uplink interference, cell coverage is not up to 90% and is less than 90%, then small using minimum uplink interference
Area's coverage rate is more than or equal to 90%, then using random uplink interference, cell coverage is less than 90%, it is necessary to be adjusted to wireless network
It is whole.
Following any way adjustment may be employed：For cell of the cell coverage less than 90% base is adjusted for step-length with 5 meters
Height of standing either uses up main lobe direction by the deflection that step-length increases base-station transmitting-power or adjusts directional aerial of 2dBm
Amount alignment covers poor region.
To the wireless network after adjustment, then 101 are performed, readjust wireless network.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modifications, equivalent replacements and improvements are made should be included in the protection of the present invention
Within the scope of.
Claims (4)
- A kind of 1. method for adjusting wireless network, which is characterized in that the described method includes：User UE all in wireless network is traveled through, determines the affiliated subdistrict of each UE；Transmit power according to the UE in UE affiliated subdistricts obtains the uplink interference to same frequency base station；The uplink interference of same frequency base station and cell coverage adjustment wireless network are received according to each base station；Wherein, each base station of the basis receives the uplink interference of same frequency base station and cell coverage adjustment wireless network and includes：It is received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is more than or equal to 90%, then do not adjust wireless network；Or, each base station of basis receives the uplink interference of same frequency base station and cell coverage adjustment wireless network and includes：It being received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is less than 90%, Each base station is received under the minimum uplink interference in the uplink interference of same frequency base station, and cell coverage is more than or equal to 90%, then exists Each base station is received in the uplink interference of same frequency base station under random uplink interference, and cell coverage is more than or equal to 90%, then uncomfortable Whole wireless network；Or, each base station of basis receives the uplink interference of same frequency base station and cell coverage adjustment wireless network and includes：It being received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is less than 90%, Each base station is received under the minimum uplink interference in the uplink interference of same frequency base station, and cell coverage is less than 90%, then adjusts nothing Gauze network；Or, each base station of basis receives the uplink interference of same frequency base station and cell coverage adjustment wireless network and includes：It being received in each base station under the most strong uplink interference in the uplink interference of same frequency base station, cell coverage is less than 90%, Each base station is received under the minimum uplink interference in the uplink interference of same frequency base station, and cell coverage is more than or equal to 90%, then exists Each base station is received in the uplink interference of same frequency base station under random uplink interference, and cell coverage is less than 90%, then adjustment is wireless Network.
- 2. the method for wireless network is adjusted according to claim 1, which is characterized in that the affiliated subdistrict for determining each UE Including：By the maximum in the Reference Signal Received Power RSRP of UE to each base station, the affiliated subdistrict of each UE is determined.
- 3. the method for wireless network is adjusted according to claim 1, which is characterized in that foundation UE in UE affiliated subdistricts Transmit power acquisition the uplink interference of same frequency base station is included：It is obtained according to the transmit power of UE in UE affiliated subdistricts and UE to other with the propagation model of frequency base station to same frequency base station Uplink interference.
- 4. the method for wireless network is adjusted according to claim 1, which is characterized in that the adjustment wireless network includes：It is right It is step-length adjustment base station height using 5 meters in cell of the cell coverage less than 90% or increases base station hair by step-length of 2dBm Send the deflection of power or adjustment directional aerial that main lobe direction alignment is made to cover poor region.
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| CN201310391019.9A CN104427506B (en) | 2013-09-02 | 2013-09-02 | A kind of method for adjusting wireless network |
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| CN201310391019.9A CN104427506B (en) | 2013-09-02 | 2013-09-02 | A kind of method for adjusting wireless network |
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| CN101087448A (en) * | 2007-07-16 | 2007-12-12 | 中国移动通信集团广东有限公司 | A system for cell signals coverage in mobile communication |
| CN101511107A (en) * | 2009-03-23 | 2009-08-19 | 北京邮电大学 | Frequency planning method based on synergic multi-point single-user multi-input multi-output |
| US20100316012A1 (en) * | 2009-06-12 | 2010-12-16 | Cygnus Broadband | Systems and Methods for Intelligent Discard in a Communication Network |
| CN102202353A (en) * | 2010-03-24 | 2011-09-28 | 电信科学技术研究院 | Method, device and system for interference coordination control |
| US20120201229A1 (en) * | 2009-10-02 | 2012-08-09 | Panasonic Corporation | Relay backhaul uplink harq protocol |
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2013
- 2013-09-02 CN CN201310391019.9A patent/CN104427506B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087448A (en) * | 2007-07-16 | 2007-12-12 | 中国移动通信集团广东有限公司 | A system for cell signals coverage in mobile communication |
| CN101511107A (en) * | 2009-03-23 | 2009-08-19 | 北京邮电大学 | Frequency planning method based on synergic multi-point single-user multi-input multi-output |
| US20100316012A1 (en) * | 2009-06-12 | 2010-12-16 | Cygnus Broadband | Systems and Methods for Intelligent Discard in a Communication Network |
| US20120201229A1 (en) * | 2009-10-02 | 2012-08-09 | Panasonic Corporation | Relay backhaul uplink harq protocol |
| CN102202353A (en) * | 2010-03-24 | 2011-09-28 | 电信科学技术研究院 | Method, device and system for interference coordination control |
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| CN104427506A (en) | 2015-03-18 |
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Address after: 100080 Putian Building, No. 6 North Second Street, Haidian District, Beijing Patentee after: POTEVIO INFORMATION TECHNOLOGY Co.,Ltd. Address before: 100080 6, two North Street, Haidian District, Beijing, Haidian Patentee before: PETEVIO INSTITUTE OF TECHNOLOGY Co.,Ltd. |