CN105491627A - Network selection optimization method for heterogeneous network - Google Patents

Network selection optimization method for heterogeneous network Download PDF

Info

Publication number
CN105491627A
CN105491627A CN201510916034.XA CN201510916034A CN105491627A CN 105491627 A CN105491627 A CN 105491627A CN 201510916034 A CN201510916034 A CN 201510916034A CN 105491627 A CN105491627 A CN 105491627A
Authority
CN
China
Prior art keywords
network
described
heterogeneous
equipment
andsf
Prior art date
Application number
CN201510916034.XA
Other languages
Chinese (zh)
Inventor
季晓旭
曾振平
桂林卿
单惠霞
Original Assignee
南京理工大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 南京理工大学 filed Critical 南京理工大学
Priority to CN201510916034.XA priority Critical patent/CN105491627A/en
Publication of CN105491627A publication Critical patent/CN105491627A/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission and use of information for re-establishing the radio link
    • H04W36/0066Transmission and use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters used to improve the performance of a single terminal
    • H04W36/30Reselection being triggered by specific parameters used to improve the performance of a single terminal by measured or perceived connection quality data

Abstract

The invention provides a method for access network selection according to real-time network conditions, and relates to a network selection optimization method for a heterogeneous network. The heterogeneous network is a network comprising a cellular network and a WLAN, the cellular network is a first network, and the WLAN is a second network. When the service of the first network to which equipment joins is not satisfactory, according to a network list provided by ANDSF and RAN Rules, the equipment offloads the traffic from a top network, and when the load of the first network is too high, or the first network is congested, the equipment can timely switch to the second network. Through adoption of the method, a shortcoming that a better network cannot be selected timely is improved, the network performance is improved, and the resource utilization is maximized.

Description

A kind of network of heterogeneous network selects optimization method

Technical field

The present invention relates to communication technical field, the network particularly relating to a kind of heterogeneous network selects optimization method.

Background technology

Along with the development of wireless communication technology, for meeting the requirement of user to network throughput, network rate, the appearance of heterogeneous network solves that single network load is high, the problem of throughput degradation, but for the network select permeability of heterogeneous network, is the problem that people constantly explore always.The heterogeneous network scene coexisted for WLAN and LTE system, current network selecting method is normally according to the received signal quality that ANDSF and RANRules is assessed in two networks respectively by user, and the network condition such as load, return bandwidth in conjunction with network carries out the selection of access network or the decision-making of data distribution.This network selection mode by user-driven does not consider the overall performance of network, and how realizing network selection more flexibly between heterogeneous network, and can realize optimization, the maximized utilization of resource of network performance, is current technical problem to be solved.

Summary of the invention

Technical problem to be solved by this invention is the defect for prior art, there is provided a kind of and can carry out access network selecting method according to real-time network condition, in time to the shortcoming that the network more optimized is selected, network performance can not be improve, maximum resource utilance to improve original method.

The present invention is for solving the problems of the technologies described above by the following technical solutions: described heterogeneous network at least comprises a honeycomb class network and two WLAN network of relations, and script equipment comprises mobile phone, pad etc. and is connected to honeycomb class network.

Described network selects optimization method to comprise the following steps:

S1, due to active user too much or overall network situation bad, cause the first network service that connects now undesirable;

S2, when equipment moves to some extent, trigger ANDSF and RANRules;

S3, ANDSF and RANRules measure the network around equipment and assess;

The second network list meeting the condition such as signal strength signal intensity, offered load is sent to equipment by S4, ANDSF and RANRules;

S5, equipment are connected the network that list ranks the first according to the information that ANDSF with RANRules provides;

S6, when device discovery WLAN1 offered load is too high or network congestion time, automatically connect the network that list is number two;

In embodiments of the invention, described heterogeneous network is the network that cellular network and WiFi network coexist, and cellular network is mainly macrocellular network.

The present invention adopts above technical scheme compared with prior art, there is following technique effect: the present invention considers when being switched to wlan network from honeycomb class network, when the WLAN switched can not provide and well serve, avoid equipment to switch and get back to honeycomb class network, saved handover overhead and decreased handover delay.

The a kind of of employing can carry out access network selecting method according to real-time network condition, in time to the shortcoming that the network more optimized is selected, can not improve network performance, maximum resource utilance to improve original method.

Accompanying drawing explanation

Fig. 1 is the access network selection flow chart of heterogeneous network of the present invention.

Fig. 2 is the access network selection flow chart of embodiments of the present invention.

Embodiment

Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.

It should be noted that, the diagram provided in following examples only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.

Refer to Fig. 1, the network that the invention provides a kind of heterogeneous network selects optimization method, is applied to internetwork selection, the performance boost of feasible system, has saved handover overhead and has decreased handover delay.

Fig. 1 is the flow chart of the network selection optimization method of a kind of heterogeneous network of the present invention, and heterogeneous network of the present invention at least comprises first network and second network, and described first network and described second network are different wireless networks, and idiographic flow is as follows:

(1). equipment connection, in first network, because active user is too much or overall network situation is bad, causes the first network connected now to serve undesirable;

(2). when equipment moves to some extent, trigger ANDSF and RANRules, or first network initiatively triggers ANDSF and RANRules;

(3) .ANDSF and RANRules measures the network around equipment and assesses;

(4) the second network list meeting the condition such as signal strength signal intensity, offered load is sent to equipment by .ANDSF and RANRules, and WLAN1 ranked first, and WLAN2 ranked second, and gets rid of the network of the same type with first network;

(5). the information that equipment provides according to ANDSF with RANRules is connected WLAN1, and flow is unloaded to WLAN1;

(6). when device discovery WLAN1 offered load is too high or network congestion time, be dynamically connected WLAN2 certainly;

Usually said heterogeneous network can refer to the heterogeneous wireless network that Hierarchical Network (being made up of macrocellular and cellulor) in cellular network and multi-modulation scheme coexist.The present invention is mainly applicable to the heterogeneous wireless network that multi-modulation scheme coexists, and can to realize between minizone or different system more flexibly and network is selected and switched timely.Microcell base station, WLANAP and the AP with cellular basestation colocation site is there is in cellular macro base station range.User can access two networks by two transmission links.The mode that user sets up two transmission links can connect the framework such as (DualConnectivity, DC) or LTE-WLANAggregation or technology based on the double-strand of current R12 version.Article two, link can be respectively wlan network and cellular network.

For convenience of description, the macrocellular as data anchor point is called first network here, wlan network is called second network.First network wide coverage, accessed a large amount of users, load is higher, cause network congestion or Consumer's Experience poor; Second network coverage is little, and access user is few, but due to the technology such as MU-MIMO of access point in second network, have the ability as more user serves, network capacity has room for promotion.Now, transfer of data is carried out under certain customers can be offloaded to second network access point by the access point of first network.Because first network is the data anchor point of overall architecture, control data distribution and the scheduling of network, therefore first network access point clearly understands distribution and the respective transmissions environment of user, makes first network access point can provide this category information to second network access point.

The present invention can switch the network of connection in time and timely flow is unloaded to other networks, and equipment of having saved switches back and forth and serves the situation that can not obtain in time serving, and improves the throughput of network utilization and system, avoids the waste of system resource.

Claims (4)

1. the network of a heterogeneous network selects optimization method, it is characterized in that, described heterogeneous network at least comprises first network and second network, and described first network and described second network are different wireless networks, and described network selects optimization method to comprise the following steps:
S1, equipment connection, in first network, because active user is too much or overall network situation is bad, cause the first network connected now to serve undesirable;
S2, when equipment moves to some extent, trigger ANDSF and RANRules, or first network initiatively triggers ANDSF and RANRules;
S3, ANDSF and RANRules measure the network around equipment and assess;
The network list satisfied condition is sent to equipment by S4, ANDSF and RANRules;
S5, equipment are connected the network that list ranks the first according to the information that ANDSF with RANRules provides, flow is unloaded to this network;
S6, when the network of network load too high that device discovery list ranks the first or network congestion, automatically connect the network that list is number two.
2. the network of a kind of heterogeneous network as claimed in claim 1 selects optimization method, it is characterized in that: described step S3 comprises further: measure the network around equipment and assess and mainly comprise signal strength signal intensity, offered load, up-downgoing feedback etc.
3. the network of a kind of heterogeneous network as claimed in claim 1 selects optimization method, it is characterized in that: described step S4 comprises further: the network list satisfied condition only comprises the network with first network different kind.
4. the network of the heterogeneous network as described in claim 1 and 3 selects optimization method, it is characterized in that: described heterogeneous network is the heterogeneous network that cellular network and WLAN coexist, and described first network is cellular network, and described second network is WLAN.
CN201510916034.XA 2015-12-10 2015-12-10 Network selection optimization method for heterogeneous network CN105491627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510916034.XA CN105491627A (en) 2015-12-10 2015-12-10 Network selection optimization method for heterogeneous network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510916034.XA CN105491627A (en) 2015-12-10 2015-12-10 Network selection optimization method for heterogeneous network

Publications (1)

Publication Number Publication Date
CN105491627A true CN105491627A (en) 2016-04-13

Family

ID=55678253

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510916034.XA CN105491627A (en) 2015-12-10 2015-12-10 Network selection optimization method for heterogeneous network

Country Status (1)

Country Link
CN (1) CN105491627A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106131921A (en) * 2016-07-19 2016-11-16 南京理工大学 The access point system of selection of heterogeneous network
WO2019028795A1 (en) * 2017-08-10 2019-02-14 Oppo广东移动通信有限公司 Method and device for determining service path

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102802239A (en) * 2011-05-25 2012-11-28 中兴通讯股份有限公司 Method and system for providing access network selection strategy based on network state
CN103561454A (en) * 2013-10-22 2014-02-05 上海华为技术有限公司 Network access processing method and network access processing device
CN103916911A (en) * 2013-01-08 2014-07-09 美国博通公司 Systems and methods for network discovery and selection using contextual information
CN103929787A (en) * 2013-01-11 2014-07-16 电信科学技术研究院 Method, device and system for switching of heterogeneous networks
CN103974322A (en) * 2013-02-06 2014-08-06 电信科学技术研究院 WLAN (wireless local area network) load determination method, device and system
WO2014205713A1 (en) * 2013-06-27 2014-12-31 华为技术有限公司 Service offloading method and base station
CN104936232A (en) * 2015-07-08 2015-09-23 重庆邮电大学 User tag based shunt method and system in 5G network

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102802239A (en) * 2011-05-25 2012-11-28 中兴通讯股份有限公司 Method and system for providing access network selection strategy based on network state
CN103916911A (en) * 2013-01-08 2014-07-09 美国博通公司 Systems and methods for network discovery and selection using contextual information
CN103929787A (en) * 2013-01-11 2014-07-16 电信科学技术研究院 Method, device and system for switching of heterogeneous networks
CN103974322A (en) * 2013-02-06 2014-08-06 电信科学技术研究院 WLAN (wireless local area network) load determination method, device and system
WO2014205713A1 (en) * 2013-06-27 2014-12-31 华为技术有限公司 Service offloading method and base station
CN103561454A (en) * 2013-10-22 2014-02-05 上海华为技术有限公司 Network access processing method and network access processing device
CN104936232A (en) * 2015-07-08 2015-09-23 重庆邮电大学 User tag based shunt method and system in 5G network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106131921A (en) * 2016-07-19 2016-11-16 南京理工大学 The access point system of selection of heterogeneous network
WO2019028795A1 (en) * 2017-08-10 2019-02-14 Oppo广东移动通信有限公司 Method and device for determining service path

Similar Documents

Publication Publication Date Title
ES2710559T3 (en) Selection of a radio access technology in a heterogeneous network
JP6439048B2 (en) System and method for providing a customized virtual wireless network based on automatic creation of service-oriented network
ES2719082T3 (en) Virtualization of wireless network with multiple dynamic access
US10419288B2 (en) Network operating system client architecture for mobile user equipment
Liang et al. Wireless virtualization for next generation mobile cellular networks
CN102457915B (en) Manage the method for X2 interface, changing method, disturbance restraining method and device
Bogale et al. Massive MIMO and mmWave for 5G wireless HetNet: Potential benefits and challenges
WO2014034118A1 (en) Communication system, base station, and communication method
US20090016245A1 (en) Communication device and method for transmitting data
JP5720910B2 (en) Load balancing in network sharing
US20130017852A1 (en) Communication system and management method thereof
KR101059356B1 (en) Method and apparatus for handoff control in mobile communication system
US20130137469A1 (en) Method for transmitting an opportunistic network related message
CN102348194B (en) Radio communication devices, information providers, methods for controlling said devices and providers
Chen et al. Cloud-based wireless network: Virtualized, reconfigurable, smart wireless network to enable 5G technologies
ES2658915T3 (en) Timely carrier aggregation for dynamic flow switching between radio access technologies
Panwar et al. A survey on 5G: The next generation of mobile communication
CN101321385B (en) Cooperation resource management method and system in heterogeneous wireless network
US8995331B2 (en) Relaying in mixed licensed and unlicensed carrier aggregation
CN103718639A (en) Opportunistic carrier aggregation using short range extension carriers
EP2713634A1 (en) Method for dynamically controlling data paths, MTC gateway and network device using the same
FR2866184A1 (en) Communication network e.g. wireless LAN, selecting process for dual function mobile telephone, involves selecting one access point to LAN, if LAN is adapted to communication than cellular network
JP2012075158A5 (en)
CN104471975A (en) Method and apparatus for detecting and managing user plane congestion
CN103370963B (en) Method and apparatus for being measured between report radio access technology

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160413

WD01 Invention patent application deemed withdrawn after publication