CN106131921A - The access point system of selection of heterogeneous network - Google Patents
The access point system of selection of heterogeneous network Download PDFInfo
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- CN106131921A CN106131921A CN201610574761.7A CN201610574761A CN106131921A CN 106131921 A CN106131921 A CN 106131921A CN 201610574761 A CN201610574761 A CN 201610574761A CN 106131921 A CN106131921 A CN 106131921A
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- network
- access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of access point system of selection being applicable to heterogeneous network, heterogeneous network includes first network and the second network, described first network and described second network are different wireless networks, user must access a first network access point when access network, one the second Network Access Point of optional access simultaneously, method comprises the following steps: user is according to self hardware supported situation and data volume, and the network condition detected decides whether to carry out access point selection；User selects access point to be attached according to from the second network control message of first network and the network condition that detects.Utilize the present invention can consider first network and the transmittability of the second network, improve user's selection to access point, effectively promote Consumer's Experience.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of heterogeneous network considering access point network fusion faculty
Access point system of selection.
Background technology
Cordless communication network is developed so far, and defines with wireless lan (wlan) and Cellular Networks (Cellular
Network) being two big classes of representative, wherein WLAN mainly includes IEEE 802.11 series, Cellular Networks then include GSM,
GPRS, CDMA, UMTS, LTE, LTE-A etc..The two is respectively arranged with quality: WLAN can be that terminal provides high radio interface rate, and its
It is operated in unlicensed band, disposes and use flexibly and low cost, but its coverage is relatively small, is usually used in local focus and covers
Lid；Cellular Networks then can provide the user more guaranteed reliability's service authorizing frequency range, and it supports that wide area covers.How will
Cellular network (hereinafter will be described as a example by LTE) and WLAN carry out effective integration, with utilize two kinds of Internet resources for
Family provides and more efficiently services easily, is one of current focus of attention of industry.
Under the framework of LTE and WLAN combination network (LTE-WLAN Aggregation, referred to as LWA), a certain business
The data of type can be transmitted by LTE and WLAN both links simultaneously.Under the framework of LWA, LTE and WLAN is tight coupling
The fusion closed, data distribution anchor point is the eNB(base station of LTE).Such as, the data transmitted by WLAN are passed through by the eNB of LTE
Interface between LTE-WLAN is transferred to WLAN, then is transmitted by wlan network.
Current network selection technique is concentrated mainly on the selection between the diverse access point of same wireless technology, closes at present
In LTE and wlan network the research deposited, all assume that and between LTE and WLAN, there is not cooperation, or loose coupling, i.e. data
Shunting anchor point is positioned at the core net of LTE.
Summary of the invention
It is an object of the invention to provide the access point system of selection of a kind of heterogeneous network, it is right to be used for making up in prior art
The ignorance of LTE Yu WLAN combination network scene.
The technical scheme realizing the object of the invention is: the access point system of selection of a kind of heterogeneous network, heterogeneous network includes
First network and the second network, first network and described second network are different wireless networks, and user must when access network
A first network access point, simultaneously one the second Network Access Point of optional access must be accessed.Access point system of selection includes
Following steps: S1, user detects described first network and described second network current network state information；S2, user is according to institute
State network state information, and the hardware supported situation of self, decide whether to carry out access point selection, if it has, then perform step
Rapid S3, otherwise, performs step S1；S3, user is according to described network state information and the second of the broadcast of first network access point
Network list, determines access point to be connected；S4, user sets up with above-mentioned access point and is connected.
Described network state information includes: signal intensity, offered load, network delay, network throughput and rate.
Second network list of described first network access point broadcast, can be with tight coupling including described first network access point
Conjunction mode carries out the second Network Access Point of the network integration.
Described heterogeneous network is LTE and WLAN combination network, and described first network is cellular network, and described second network is
WLAN。
In described step S2, it is connected if user does not sets up with any network, directly performs step S3；If user does not opens
Network integration pattern, checks whether each first network access point network state is better than former network state, if being better than, then performs step
S3, otherwise returns and performs step S1；If user has been in network connection state, calculate the comprehensive of each first network access point
Can, whether relatively calculated combination property is better than the combination property of former connection network, the most then perform step S3, otherwise
Return and perform step S1.
Described S3 includes: S31, and user calculates the combination property of each first network access point；S32, connects first network
Access point is ranked up according to above-mentioned result of calculation.
Described S4 includes: S41, and user sets up with described first network access point and is connected；S42, described first network accesses
Point provides candidate the second network insertion point list to described user；S43, user attempts accessing the second net according to described tab sequential
Network access point.
The calculating of described combination property can be to use weighted sum mode, i.e. first network weight * first network state+the second
Network weight * first network broadcast the second network state, it would however also be possible to employ deviant mode, i.e. first network combination property=。
Compared with prior art, its remarkable advantage is the present invention: the present invention considers in the tightly coupled feelings of different networks
Under condition, it is possible to make user's ability in view of the network integration when selecting network, improve message transmission rate and Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the heterogeneous network scene graph of the present invention.
Fig. 2 is the heterogeneous network transmission structure chart of the present invention.
Fig. 3 is that the access point of the heterogeneous network of the present invention selects flow chart.
Fig. 4 is present invention flow chart in the framework of LTE and WLAN combination network.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention are described,
Usually said heterogeneous network can refer to the Hierarchical Network (being made up of macrocellular and cellulor) in cellular network and multi-standard altogether
The heterogeneous wireless network deposited.The present invention is applicable to above two heterogeneous network, it is possible to realize minizone or different systems more may be used
The access point leaned on selects.Exist in cellular macro base station range microcell base station, WLAN AP and with cellular basestation colocation site
AP.User can access two networks by two transmission links.User sets up the mode of two transmission links can be based on
The double-strand of current R12 version connects framework or the technology such as (Dual Connectivity, DC) or LTE-WLAN Aggregation.
Article two, link can be respectively wlan network and cellular network, or the macro base station of cellular network and micro-base station.
Describe for convenience, here the macrocellular as data anchor point is referred to as first network, by controlled network microcellulor
Or wlan network is referred to as the second network.First network wide coverage, has accessed substantial amounts of user, has often loaded higher, cause
Network congestion or Consumer's Experience are poor；Second network coverage is little, accesses user few.The situation of different Network Access Points is past
Very big toward difference, such as signal to noise ratio, offered load etc., especially, traditional first network access point is not supported to enter with the second network
Row close coupling.The access point concrete mode of system of selection prioritizing selection proposed by the invention is: user detects described first network
With described second network current network state information；User is according to described network state information, and the hardware supported feelings of self
Condition, decides whether to carry out access point selection；User broadcast according to described network state information and first network access point the
Two network lists, determine access point to be connected；User sets up with above-mentioned access point and is connected.
As a example by the heterogeneous network that LTE with WLAN coexists, the present invention is further illustrated below.
Referring to Fig. 1-Fig. 4, the present invention provides the access point system of selection of a kind of heterogeneous network, is applied to mobile subscriber and sets
Standby access point selects, and can realize message transmission rate and promote, optimize Consumer's Experience.
Fig. 1 is shown as the heterogeneous network scene graph of the present invention.LTE base station (eNB) is if deposited between 11 and WLAN AP 12
At Xw interface 13, then this base station 11 can be connected with setting up LWA between AP 12, and base station 11 can utilize AP 12 to transmit data.
Subscriber equipment 14 can be the equipment supporting LWA, is i.e. simultaneously connected with base station 11 and AP 12, it is also possible to be not support setting of LWA
Standby, i.e. can only connect base station 11.
For supporting the UE of LWA, if using traditional mode to select base station, only will can consider the shape of LTE link
Condition, may make UE cannot be carried out LWA after accessing LTE network or can only be connected by the WLAN AP the best with network condition.This
The bright network quality having considered LTE and WLAN both sides.
As in figure 2 it is shown, in the framework of LTE and WLAN combination network, cellular network base stations LTE eNB and WLAN node (letter
Be referred to as WT) between by XW(control plane) interface connect.In one embodiment of the invention, to be positioned at WLAN AP(wireless for WT
Access point) place, can be WLAN AP, access controller (AC) or an independent logic entity, its with cellular network base stations it
Between there is communication interface, this communication interface can carry out UE data forwarding and Signalling exchange.It is in the use in WLAN service area
Family equipment (referred to as UE) has the ability simultaneously accepting service from LTE network and wlan network, i.e. UE can safeguard WLAN simultaneously
Connection (Multi-RAT connection) with Cellular Networks.Under LWA pattern, the data of a certain type of service of UE pass through LTE
Being transmitted with WLAN both links, as shown in Figure 2, the packet of UE is punished two paths at eNB and is arrived, a part simultaneously
(packet 1,3,4) transmits via LTE link, and another part (packet 2,5) transmits via WLAN link.
Fig. 3 is the flow chart of the access point system of selection of a kind of heterogeneous network of the present invention, and the heterogeneous network of the present invention is extremely
Include that first network and the second network, described first network and described second network are different wireless networks less, concrete grammar
For: S1, user detects described first network and described second network current network state information；S2, user is according to described network
Status information, and the hardware supported situation of self, decide whether to carry out access point selection, if it has, then perform step S3, no
Then, step S1 is performed；S3, the second network row that user broadcasts according to described network state information and first network access point
Table, generates candidate's wireless network list, determines access point to be connected；S4, user sets up with above-mentioned access point and is connected.
Fig. 4 is present invention flow chart in the framework of LTE and WLAN combination network.LTE base station is represented with eNB, and AP
Representing WLAN access point, this programme needs as data described point due to eNB, is therefore applicable to LWA framework.First user detects
LTE network and wlan network current network state information；Then according to described network state information, and whether self supports
LWA, decides whether to carry out access point selection, if the current LWA module of user is closed, will use traditional access point
Selection mode, if user determines to open LWA, then user should be right according to described network state information and the AP list of eNB broadcast
The eNB detected calculates its combination property；If user meets LWA set up the condition with eNB after being connected, then set up LWA.LWA's
The process of foundation can use the working standard of 3GPP, as in Release 13, waits according to the Mobility List(that eNB provides
Select network list) it is sequentially connected with, if connection failure, then send error reporting to eNB.
In sum, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Claims (6)
1. the access point system of selection of a heterogeneous network, it is characterised in that: described heterogeneous network includes first network and second
Network, first network and the second network are different wireless networks, and user must access a first network when access network
Access point, simultaneously one the second Network Access Point of optional access；Described access point system of selection comprises the following steps:
S1, user detects first network and the second network current network state information；
S2, user, according to network state information and the hardware supported situation of self, decides whether to carry out access point selection；
S3, the second network list that user broadcasts according to network state information and first network access point, determine to be connected connecing
Access point；
S4, user sets up with above-mentioned access point and is connected.
The access point system of selection of heterogeneous network the most according to claim 1, it is characterised in that: in described step S2, if
User does not sets up with any network and is connected, and directly performs step S3；If user's non-opening network fusion mode, check each first
Whether Network Access Point network state is better than former network state, if being better than, then performs step S3, otherwise returns and perform step S1；
If user has been in network connection state, calculate the combination property of each first network access point, calculated the most comprehensive
Whether can be better than the combination property of former connection network, the most then perform step S3, otherwise return and perform step S1.
The access point system of selection of heterogeneous network the most according to claim 1, it is characterised in that: described step S3 is specifically wrapped
Include following steps:
S31, user calculates the combination property of each first network access point；
S32, is ranked up according to above-mentioned result of calculation first network access point.
The access point system of selection of heterogeneous network the most according to claim 1, it is characterised in that: described step S4 is specifically wrapped
Include following steps:
S41, user sets up with first network access point and is connected；
S42, first network access point provides a user with candidate's the second network insertion point list；
S43, user is sequentially ingressed into the second Network Access Point according to tab sequential.
5. according to the access point system of selection of the heterogeneous network described in claim 1,2 or 3, it is characterised in that: described first net
Second network list of network access point broadcast, can carry out the network integration with close coupled system including described first network access point
The second Network Access Point.
The access point system of selection of heterogeneous network the most according to claim 1, it is characterised in that: described heterogeneous network is LTE
With WLAN combination network, first network is cellular network, and the second network is WLAN.
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| CN201610574761.7A CN106131921B (en) | 2016-07-19 | 2016-07-19 | The access point selection method of heterogeneous network |
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| CN201610574761.7A CN106131921B (en) | 2016-07-19 | 2016-07-19 | The access point selection method of heterogeneous network |
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| CN106131921B CN106131921B (en) | 2019-08-09 |
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Cited By (4)
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| CN106658617A (en) * | 2017-03-06 | 2017-05-10 | 北京小米移动软件有限公司 | Access point (AP) switching method, device and system |
| CN106658620A (en) * | 2017-03-06 | 2017-05-10 | 北京小米移动软件有限公司 | Access point (AP) switching method and device |
| CN106899974A (en) * | 2017-03-06 | 2017-06-27 | 北京小米移动软件有限公司 | A kind of method and apparatus of access point switching |
| CN109526042A (en) * | 2019-01-23 | 2019-03-26 | 重庆邮电大学 | A kind of network access point selection method of the LWA system based on OWMAD |
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| CN106899974A (en) * | 2017-03-06 | 2017-06-27 | 北京小米移动软件有限公司 | A kind of method and apparatus of access point switching |
| CN106658620B (en) * | 2017-03-06 | 2020-09-08 | 北京小米移动软件有限公司 | Method and device for switching access points |
| CN106899974B (en) * | 2017-03-06 | 2021-01-01 | 北京小米移动软件有限公司 | Method and device for switching access points |
| CN109526042A (en) * | 2019-01-23 | 2019-03-26 | 重庆邮电大学 | A kind of network access point selection method of the LWA system based on OWMAD |
| CN109526042B (en) * | 2019-01-23 | 2021-02-02 | 重庆邮电大学 | Network access point selection method of LWA system based on OWMAD |
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| CN106131921B (en) | 2019-08-09 |
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