CN102123403B - Method for optimizing fusion performance of heterogeneous network - Google Patents
Method for optimizing fusion performance of heterogeneous network Download PDFInfo
- Publication number
- CN102123403B CN102123403B CN 201110079175 CN201110079175A CN102123403B CN 102123403 B CN102123403 B CN 102123403B CN 201110079175 CN201110079175 CN 201110079175 CN 201110079175 A CN201110079175 A CN 201110079175A CN 102123403 B CN102123403 B CN 102123403B
- Authority
- CN
- China
- Prior art keywords
- wireless local
- local area
- area network
- base station
- travelling carriage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000004927 fusion Effects 0.000 title abstract description 3
- 238000005457 optimization Methods 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 abstract description 10
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Images
Classifications
-
- 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
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/04—Traffic adaptive resource partitioning
Abstract
The invention discloses a method for optimizing the fusion performance of a heterogeneous network, which is used for optimizing the performance of the heterogeneous network consisting of an evolution data optimized (EVDO) cellular mobile network and a wireless local area network. In the method, an EVDO cellular base station is taken as a source node, two wireless local area network base stations are taken as relay nodes, and a user terminal is taken as a destination node; the EVDO cellular base station transmits signals to two wireless local area network access points (APs); and the signals are forwarded to the user terminal by the two wireless local area network APs. The terminal acquires the modulation coding mode of maximizing throughput through channel information and feeds the modulation coding mode back to the two wireless local area network APs, the two wireless local area network APs transmit information to the user terminal in the fed-back modulation coding mode, and the userterminal receives the signals from the two wireless local area network APs and combines the signals, so that diversity reception and adaptive modulating coding are realized, and the reliability and the efficiency of signal reception and the throughput of an overall heterogeneous network system are improved.
Description
Technical field
The present invention relates to a kind of EVDO(Evolution Data Optimized Evolution-Data Optimized) cellular basestation and 802.11N base station improve the heterogeneous network performance optimization method of portable terminal receptivity jointly.
Background technology
WLAN (wireless local area network) (802.11n) and mobile cellular net all are Radio Access Networks, and they form the network architecture of wireless access jointly.WLAN (wireless local area network) and cellular mobile communication networks integration technology provide multiple choices for people's access network, simultaneously because every kind of wireless access wide band technology has its technical advantage, can select to be fit to access way according to the different business situation from technical standpoint, thereby optimize Internet resources.Say that from user perspective under the service quality that requires (QoS) situation, the user can select the wireless access way of low rate satisfying, and makes market be tending towards diversification, thereby optimizes allocation of resources from commercial, market economy angle.Thereby WLAN (wireless local area network) and the cellular mobile communications networks of greatly developing fusion will be trends of the times.
Traditional EVDO cellular network coverage is big, and infrastructure construction is very perfect, and the voice call transmission quality is better, and the transfer of data of given pace also can be provided.802.11n coverage is little, generally on the airport, campus, gymnasium, office building etc. be provided with AP in the focus area among a small circle, and the transfer of data of higher rate can be provided.
Pros and Cons according to EVDO cellular network and 802.11n, can organically combine both, form and have complementary advantages, both can solve the relatively low problem of EVDO cellular network data transmission rate, also can solve the little problem of 802.11n coverage, the final coverage that enlarges whole residential quarter is improved signal receiving performance, increases throughput.
Summary of the invention
Technical problem:The object of the present invention is to provide a kind of heterogeneous network to merge performance optimization method, organically combine EVDO and 802.11n, utilize AMC, enlarge the coverage base station scope, strengthen the subscriber signal receptivity.
Technical scheme:In order to reach above purpose, heterogeneous network of the present invention merges performance optimization method to be realized by following technical scheme is provided:
The first step, in the heterogeneous network cell centre Evolution-Data Optimized EVDO(Evolution Data Optimized is set) base station, with the EVDO base station be the circumference in the center of circle as cell edge, per 90 degree arrange 1 802.11n wireless local network connecting point AP on this 360 degree circumference;
Second step, travelling carriage utilizes the maximum data throughput criterion to select from the EVDO base station to wireless local area network AP and the modulation coding mode of the link from the wireless local area network AP to the travelling carriage according to channel information, modulation coding mode is fed back to EVDO base station and wireless local area network AP again;
The 3rd step, when between two AP of travelling carriage among four wireless local area network APs, the modulation coding mode that the EVDO base station obtains according to the travelling carriage feedback, send data message to these two wireless local area network APs, the modulation coding modes that two wireless local area network APs obtain according to the travelling carriage feedback send the data message that receives from the EVDO base station to travelling carriage at former and later two time slots respectively;
In the 4th step, travelling carriage utilizes soft bit merge algorithm, merges two data messages that wireless local area network AP sends in soft bit levels, carries out Veterbi decoding then.
Beneficial effect:Technique effect of the present invention is mainly reflected in: by set up 802.11nAP in original EVDO residential quarter, make whole cell coverage area increase.By adaptive adjustment modulation coding mode, make throughput increase.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the cell layout schematic diagram.
Fig. 2 is that two relayings cover schematic diagram.
Fig. 3 is two tunnel merging schematic diagrams.
Fig. 4 is the SNR-MI relation.
Embodiment
1, the heterogeneous network cell structure is core with the EVDO base station, and it is 2 kilometers that the EVDO residential quarter covers radius of a circle.Set up 4 802.11n wireless local area network APs, equally spaced to be distributed in the EVDO base station be the center of circle, and radius is that spacing is 2828 meters on 2 kilometers the circumference.
2, EVDO base station and wireless local area network AP can send to terminal with channel information, travelling carriage just can be known from the EVDO base station to wireless local area network AP, from wireless local area network AP the channel information to the travelling carriage link.According to ERBIR algorithm (strengthen encoding block and receive the information rate algorithm), travelling carriage utilizes the channel information of known above each bar link to calculate the equivalent signal-to-noise ratio SNR of each bar link, calculate mutual information MI by the SNR-MI relation, try to achieve the RBIR(encoding block according to the MI arithmetic average and receive information rate), try to achieve the prediction frame error rate FER of each bar link according to the FER-RBIR corresponding relation, try to achieve total frame error rate by following formula then
Wherein
With
Be the frame error rate of two links from the EV-DO base station to wireless local area network AP,
With
Be the frame error rate of two links from the wireless local area network AP to the travelling carriage,
For merging frame error rate.Merging frame error rate also can be obtained by above-mentioned ERBIR algorithm.According to formula
Calculate predicted data throughput, wherein
Be the bit number of transmission Frame,
Send the time span of Frame.Selection makes and the modulation coding mode of predicted data throughput maximum feeds back to EVDO base station and two wireless local area network APs respectively.
3, the EVDO base station sends same information to two wireless local area network APs simultaneously according to the modulation coding mode of travelling carriage feedback.
4, after two AP received information, according to the modulation coding mode of travelling carriage feedback, formerly latter two time slot was transmitted information to travelling carriage.
5, travelling carriage utilizes soft bit merge algorithm, and the soft bit before decoding, two paths of signals after the soft demodulation directly merges, and the soft bit after will merging is then delivered to decoder decode.
The function parameter of the FER-RBIR corresponding relation of the EVDO system that table 1 draws for emulation.Concrete function is
, function parameter is
With
| Modulation coding mode |
 |
 |
| (QPSK,1/3) | 0.3949 | 0.0228 |
| (QPSK,1/5) | 0.2465 | 0.0159 |
| (8PSK,1/3) | 0.7417 | 0.0157 |
| (16QAM,1/3) | 0.7335 | 0.0151 |
| (64QAM,1/3) | 0.9247 | 0.0096 |
Table 1
The function parameter of the FER-RBIR corresponding relation of the 802.11n system that table 2 draws for emulation.Concrete function is
, function parameter is
With
| Modulation coding mode |
 |
 |
| (BPSK,1/2) | 0.6408 | 0.0663 |
| (QPSK,1/2) | 0.6438 | 0.0648 |
| (16QAM,1/2) | 0.6226 | 0.0567 |
| (64QAM,2/3) | 0.7519 | 0.0506 |
Table 2
Claims (1)
1. a heterogeneous network merges performance optimization method, it is characterized in that this optimization method may further comprise the steps:
The first step arranges an Evolution-Data Optimized EVDO base station in the heterogeneous network cell centre, with the EVDO base station be the circumference in the center of circle as cell edge, per 90 degree arrange 1 802.11n wireless local network connecting point AP on this 360 degree circumference;
Second step, travelling carriage utilizes the maximum data throughput criterion to select from the EVDO base station to wireless local area network AP and the modulation coding mode of the link from the wireless local area network AP to the travelling carriage according to channel information, modulation coding mode is fed back to EVDO base station and wireless local area network AP again;
The 3rd step, when between two AP of travelling carriage among four wireless local area network APs, the modulation coding mode that the EVDO base station obtains according to the travelling carriage feedback, send data message to these two wireless local area network APs, the modulation coding modes that two wireless local area network APs obtain according to the travelling carriage feedback send the data message that receives from the EVDO base station to travelling carriage at former and later two time slots respectively;
In the 4th step, travelling carriage utilizes soft bit merge algorithm, merges two data messages that wireless local area network AP sends in soft bit levels, carries out Veterbi decoding then.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110079175 CN102123403B (en) | 2011-03-31 | 2011-03-31 | Method for optimizing fusion performance of heterogeneous network |
| PCT/CN2011/078548 WO2012129880A1 (en) | 2011-03-31 | 2011-08-18 | Heterogeneous network convergence performance optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110079175 CN102123403B (en) | 2011-03-31 | 2011-03-31 | Method for optimizing fusion performance of heterogeneous network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102123403A CN102123403A (en) | 2011-07-13 |
| CN102123403B true CN102123403B (en) | 2013-10-09 |
Family
ID=44251815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110079175 Expired - Fee Related CN102123403B (en) | 2011-03-31 | 2011-03-31 | Method for optimizing fusion performance of heterogeneous network |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102123403B (en) |
| WO (1) | WO2012129880A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123403B (en) * | 2011-03-31 | 2013-10-09 | 东南大学 | Method for optimizing fusion performance of heterogeneous network |
| CN103813358A (en) * | 2012-11-13 | 2014-05-21 | 华为技术有限公司 | Different network aggregation system and method |
| CN104041110B (en) * | 2012-11-15 | 2018-03-02 | 华为技术有限公司 | Transmit method, base station, access network equipment and the user equipment of data |
| CN103415019B (en) * | 2013-09-02 | 2016-06-29 | 西安电子科技大学 | A kind of low-frequency range low-consumption wireless LAN cluster-dividing method maximum based on handling capacity |
| CN105430656B (en) * | 2015-11-26 | 2019-04-09 | 中国科学院信息工程研究所 | A kind of super-intensive isomery mobile cellular network load-balancing method |
| CN110366273B (en) * | 2019-07-25 | 2021-06-22 | 维沃移动通信有限公司 | Communication method and related equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1547411A (en) * | 2003-12-14 | 2004-11-17 | 杭州电子工业学院 | Cellular network and wireless local area network loose-coupling mobile communication network |
| CN101287147A (en) * | 2008-05-07 | 2008-10-15 | 徐永乐 | Cellular (CDMA/GPRS) mobile wireless multimedia collaborative transmission system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8565744B2 (en) * | 2006-10-31 | 2013-10-22 | Intel Corporation | Vertical handover composite quality measures |
| CN101848465A (en) * | 2010-04-13 | 2010-09-29 | 南京邮电大学 | Fourth generation communication system network architecture design and wireless resource management method |
| CN102123403B (en) * | 2011-03-31 | 2013-10-09 | 东南大学 | Method for optimizing fusion performance of heterogeneous network |
-
2011
- 2011-03-31 CN CN 201110079175 patent/CN102123403B/en not_active Expired - Fee Related
- 2011-08-18 WO PCT/CN2011/078548 patent/WO2012129880A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1547411A (en) * | 2003-12-14 | 2004-11-17 | 杭州电子工业学院 | Cellular network and wireless local area network loose-coupling mobile communication network |
| CN101287147A (en) * | 2008-05-07 | 2008-10-15 | 徐永乐 | Cellular (CDMA/GPRS) mobile wireless multimedia collaborative transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012129880A1 (en) | 2012-10-04 |
| CN102123403A (en) | 2011-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101325549B (en) | Network coding communication method for wireless relay network | |
| CN102123403B (en) | Method for optimizing fusion performance of heterogeneous network | |
| US7593729B2 (en) | Point to point link and communication method | |
| KR101359557B1 (en) | System and method for cell-edge performance management in wireless systems using distributed scheduling | |
| RU2486673C1 (en) | Method for uplink transmission of data from user terminal, base station, coordination device and communication network therefor | |
| JP5110174B2 (en) | Method for transmitting system information bit stream and communication device using the same | |
| KR101682266B1 (en) | Coexistence of multiple wireless networks | |
| JP4928578B2 (en) | Data transfer method and apparatus in wireless network | |
| US7508791B2 (en) | Wireless communication coding and transmission systems and methods | |
| CN101895823B (en) | Three-step distributed wireless cooperative multicast/broadcast method | |
| CN102428723A (en) | Multi-stream wireless relay | |
| WO2011075903A1 (en) | Method and device for establishing service routing | |
| CN102075311B (en) | Network coding-based wireless cooperative broadcasting/multicasting method | |
| JP2012507230A (en) | Data transmission in mobile telephone communication networks | |
| WO2020259611A1 (en) | Communication method and apparatus, and storage medium | |
| JP2018182660A (en) | Radio communication device and retransmission control method | |
| CN112242897A (en) | Method and device for transmitting signals | |
| Yamamoto et al. | Impact of shadowing correlation on coverage of multihop cellular systems | |
| CN110768759A (en) | Hybrid duplex relay-assisted D2D communication method | |
| CN105873167B (en) | Based on the relay communication method of cooperative MAC protocol in navigation sensor network | |
| KR101608786B1 (en) | Method and apparatus of transmitting multiple data streams in relay communication system | |
| CN102438246B (en) | Adaptive collaborative transmission method for backhaul links of wireless relay | |
| CN102624498A (en) | Method for eliminating interference of downlink multi-base station cooperation system by using joint distributed space-time coding | |
| Hoeft et al. | NetBaltic system–heterogeneous wireless network for maritime communications | |
| CN103118408B (en) | Method, the Apparatus and system of cell measuring method, cell measurement and switching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160309 Address after: 211800 No. 7 Fenghuang Road, Pukou Economic Development Zone, Nanjing, Jiangsu Patentee after: TALENT-SCI Co.,Ltd. Address before: 210096 Jiangsu city Nanjing Province four pailou No. 2 Patentee before: Southeast University |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for optimizing fusion performance of heterogeneous network Effective date of registration: 20200521 Granted publication date: 20131009 Pledgee: Jiangsu Zijin rural commercial bank Limited by Share Ltd. branch of science and technology Pledgor: TALENT-SCI Co.,Ltd. Registration number: Y2020980002381 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201027 Granted publication date: 20131009 Pledgee: Jiangsu Zijin rural commercial bank Limited by Share Ltd. branch of science and technology Pledgor: TALENT-SCI Co.,Ltd. Registration number: Y2020980002381 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A performance optimization method for heterogeneous network convergence Effective date of registration: 20201028 Granted publication date: 20131009 Pledgee: Jiangsu Zijin rural commercial bank Limited by Share Ltd. branch of science and technology Pledgor: TALENT-SCI Co.,Ltd. Registration number: Y2020980007305 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |