CN103476004A

CN103476004A - Network access auxiliary method and network access auxiliary system

Info

Publication number: CN103476004A
Application number: CN201310446240XA
Authority: CN
Inventors: 张晨璐; 董贤东; 其他发明人请求不公开姓名
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd; Dongguan Yulong Telecommunication Technology Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd; Dongguan Yulong Telecommunication Technology Co Ltd
Priority date: 2013-09-26
Filing date: 2013-09-26
Publication date: 2013-12-25

Abstract

The invention provides a network access auxiliary method which comprises the steps that a wireless mobile communication network selects a candidate set of wireless local area network access points corresponding to position information according to position information of a terminal; the wireless mobile communication network assists the terminal in executing scanning operation on the candidate set. The invention further provides a network access auxiliary system. According to the technical scheme, a 3GPP network can assist UE in achieving access operation to a WLAN network through the modes of providing access points suggested to have access to and the like on the basis of position information of the UE.

Description

Network insertion householder method and network insertion auxiliary system

Technical field

The present invention relates to the mobile communication technology field, in particular to a kind of network insertion householder method and a kind of network insertion auxiliary system.

Background technology

Along with the fast development of mobile Internet, intelligent terminal universal, and the rise of the new industries such as Internet of Things, cloud computing, mass data transfers becomes the most significant Characteristics of Development in the current wireless communications field.In the face of mass data, attack, operator's existing network (2G/3G/LTE) can't meet current demand.

For tackling this challenge, operation both domestic and external commercial city has started construction and the layout of large-scale WIFI focus.Along with WLAN(Wireless Local Area Networks) extensive networking and the introducing of LTE technology, be badly in need of 3GPP(The3 ^rdgeneration Partnership Project) the interoperability means of network and wlan network, can bring into play shunting action in the LTE stage smoothly with the early investment that guarantees operator, and form more rational control device, increase the profitability of operator.

On the one hand, due to the development along with intelligent terminal, large-screen, the intelligent terminal of high-performance processor becomes development trend.But due to relatively lagging behind of battery technology, cause UE(User Equipment, subscriber equipment or terminal) energy consumption level become a large bottleneck of current terminal development.In the WLAN that is about to open and 3GPP interoperability project (3GPP is in the project of grinding), the power consumption level of UE is an important research direction.Wherein, so-called " interoperability ", for the terminal be under the 3GPP network, wish under the assistance of 3GPP network, helps terminal to switch to wlan network, thereby optimize handoff procedure, makes and shorten switching time, improves handover success rate.

On the other hand, in existing WLAN agreement, 802.11 serial protocols have defined the initial access process of wlan device, and wherein scanning (scanning) is wherein important step.This step needs the STA equipment of terminal to be scanned the APs that may exist on every side, and obtains thus the initial access information of APs.

The mode of scanning is divided into passive type scanning and active scanning.During drive sweep, UE receives the detectable signal from APs passively on each channel, concrete as the Beacon(beacon) frame, and receive initial access information by this signal; During active scan, UE transmission probe request signal initiatively, after APs on every side receives this signal, can initiatively reply and inform initial access information.

Initiatively send detectable signal on channel because active scan needs UE, so energy consumption is larger.And passive type scanning, according in existing 802.11 agreements, the passive search cycle of UE and detectable signal transmitting time and the channel of AP, by UE and AP difference separate configurations, in this case, be easy to occur that UE can't search the situation of detectable signal, specifically as shown in Figure 1.

Supposition AP1, AP2 in Fig. 1 and AP3 send beacon frame channel (channel) A, channel B and channel C are upper respectively, and the transmission cycle of AP1 be T1, the transmission cycle of AP2 is T2, the transmission cycle of AP3 is T3; Simultaneously, UE carries out drive sweep on above-mentioned channel, and the scan period is T.Due to the length in above-mentioned each cycle and the equal UE of selection and each self-configuring of AP of time started point, thereby may occur:

1) in channel A, may be just when UE complete scanning, AP1 starts to send beacon frame;

2) in channel B, may complete and scan a period of time afterwards at UE, AP2 just starts to send beacon frame;

3) in channel C, may be after AP3 complete the transmission of a beacon frame, UE just starts to carry out scanning.

The drive sweep process known based on foregoing description, that in prior art, UE carries out, the sweep time of UE is long, greatly increases the interoperability time delay of UE from 3GPP to the wlan network, but also can therefore increase the energy consumption of UE.

Therefore, how to accelerate the scanning process of UE, and further reduce the energy consumption level of UE, become technical problem urgently to be resolved hurrily at present.

Summary of the invention

The present invention one of just is being based in the problems referred to above at least, has proposed a kind of new technical scheme, makes the positional information that the 3GPP network can be based on UE, by the modes such as access point of the access of offering suggestions to it, assists UE to realize the access operation to wlan network.

In view of this, the present invention proposes a kind of network insertion householder method, comprising: mobile radio networks, according to the positional information of terminal, is selected the Candidate Set corresponding to the wireless local network connecting point of described positional information; Described mobile radio networks assists described terminal to carry out the scan operation to described Candidate Set.

In this technical scheme, the 3GPP network is wireless mobile communications (Wireless Mobile Communication) network, such as GSM, CDMA etc.The 3GPP network is based on the UE(terminal) positional information, select the Candidate Set of corresponding AP from all AP, such as being positioned at UE on every side or near AP, thereby in fact the UE dwindled needs the sweep limits of carrying out, contribute to shorten the sweep time of UE, and reduce thus UE for carrying out the kwh loss of scan operation.

In technique scheme, preferably, the described process of obtaining the positional information of described terminal comprises: described mobile radio networks is initiatively measured the positional information of described terminal; Or himself the positional information that reports to described mobile radio networks of described terminal.

In this technical scheme, there is multiple obtain manner in the positional information of UE, report to the 3GPP network such as UE after measuring voluntarily, or UE is measured under the assistance of 3GPP network, and result is reported to the 3GPP network, or the 3GPP network initiatively measures the positional information of UE, or the 3GPP network directly obtains the positional information of UE under the assistance of UE.Particularly, the technological means that can adopt comprises that global position system (GNSS, as GPS, dipper system), network-assisted satellite positioning tech (A-GNSS), the time of advent poor (OTDOA) location technology, angle detect (AOA) location technology etc.The utilization of single technology, lower for the configuration requirement of UE or 3GPP network, be conducive to reduce device fabrication or system building cost; And the common utilization of a plurality of technology is conducive to improve certainty of measurement, so that better measurement result to be provided, and likely by shortening Measuring Time, contribute to reduce the power consumption of UE.

In technique scheme, preferably, the process of selecting described Candidate Set comprises: the positional information of described terminal comprises the position coordinates of described terminal, described mobile radio networks is estimated the residing scope of access point of service can be provided for described terminal according to described position coordinates, and the wireless local network connecting point in described scope is included in described Candidate Set; Or the positional information of described terminal comprises described terminal residing cell/section in described mobile radio networks, described mobile radio networks is included all wireless local network connecting points in the residing cell/section of described terminal in described Candidate Set in; Or the positional information of described terminal comprises described position coordinates and the residing cell/section of described terminal, described mobile radio networks will be in described effective range of receiving and the wireless local network connecting point that belongs to the residing cell/section of described terminal include in described Candidate Set.

In this technical scheme, in a kind of situation, be to include the AP near certain limit UE in Candidate Set, because the sweep limits of UE is limited, contribute to improve the scanning accuracy of UE; In a kind of situation, be to include the AP in UE community of living in or sector in Candidate Set, due to Yi Ge community or the sector of existing together, thereby in fact UE and these AP can be considered as the equipment in same scope, may be scanned by UE, this kind of mode makes the selection of AP more simple effectively; In a kind of situation, consider the residing community of AP and UE or sector, and the actual range of AP and UE simultaneously, thereby while avoiding as UE the edge in certain cell/section, in fact more the AP of adjacent cells/sectors may be connected to, and longer-distance AP in this community can not be connected to.

It should be noted that, the position coordinates of UE may be longitude and latitude numerical value, but, because the precision of location technology is limited, may there be certain deviation in this longitude and latitude numerical value with the in fact residing position of UE, such as 10-15 rice, but belongs to acceptable scope.Certainly, the error that can may cause according to factors such as location technologies, be expressed as a scope by position coordinates, thereby reduce as much as possible the impact that above-mentioned deviation produces.

In technique scheme, preferably, the process of estimating described scope comprises: take described position coordinates as the center of circle, circular coverage area that effectively receiving range is radius is described scope; Wherein, described effective receiving range is predeterminable range; Or to take the covering radius of described wireless local network connecting point be described effective receiving range, and according to obtain manner and/or the residing environment scene of described position coordinates of described position coordinates, described effective receiving range is regulated.

In this technical scheme, determine UE AP on every side for convenient, and shorten as much as possible the select time to AP, can adopt predeterminable range to determine near the scope of " UE "; And this predeterminable range can be one, also can be for corresponding to the residing varying environment of UE (as open ground or house City Regions) a plurality of.And, in order to obtain scope more accurately, the factors such as actual signal covering radius that also can be based on as AP (can measure when laying AP), the location technology adopted, the residing environment of UE, determine near the scope of " UE " in real time.

In technique scheme, preferably, also comprise: described mobile radio networks is checked state parameter and/or the configuration parameter of each wireless local network connecting point in described Candidate Set, if described state parameter and/or described configuration parameter do not meet default alternative condition, corresponding wireless local network connecting point is screened out from described Candidate Set.

In this technical scheme, the state parameter of AP, as the power of real-time loading condition, signal, network condition etc., in the situations such as the 3GPP network can be higher in the load of AP, signal is weak, network congestion, it is screened out from Candidate Set, obtain poor experience when avoiding UE to be connected to above-mentioned AP; The configuration parameter of AP, as access authority of the operator under AP, AP etc., such as belong to respectively different operators when AP and 3GPP network, or AP only allows specific UE to carry out while accessing, it is screened out from Candidate Set, can't realize connecting after avoiding UE to scan, maybe can't use corresponding service.

In technique scheme, preferably, the process that described mobile radio networks assists described terminal to carry out described scan operation comprises: the network management system to WLAN (wireless local area network) sends the access point parameters regulating command, the information and the parameter regulative mode that at least comprise described Candidate Set in described access point parameters regulating command, by described network management system, the configuration parameter of at least one wireless local network connecting point in described Candidate Set is regulated, and make described Candidate Set after adjusting meet the following conditions at least one or a combination set of: the wireless local network connecting point in described Candidate Set and the clock synchronous of described mobile radio networks or keep a regular time poor, between adjacent wireless local network connecting point, if exist, cover intersection region, use mutual glitch-free channel, use different beacon frame transmitting times between different wireless local network connecting points, the time difference δ that two adjacent wireless local network connecting points send beacon frame meets: T-Δ T<δ<2T-Δ T-t, wherein, T is the cycle that described terminal is carried out scan channel, t is that arbitrary described wireless local network connecting point sends the required time span of beacon frame, T1 is that described terminal starts to carry out the time point of scan channel at previous wireless local network connecting point channel of living in, T2 is the time point that described previous wireless local network connecting point starts to send beacon frame, and Δ T=T2-T1.

In this technical scheme, by regulating the clock of 3GPP network and the residing wlan network of AP, the time point that contributes to UE to select accordingly the scanning of self to start, thus increase the possibility that scans AP; The channel adopted by regulating AP, the channel that makes adjacent AP adopt can not produce mutually and disturb, and such as selecting to produce channel 1 and the channel 6 of disturbing mutually, thereby avoids channel to disturb mutually the scan channel that affects UE; Send the time of beacon frame by regulating different AP, thereby make the transmitting time of the AP on different channels mutually stagger, contribute to UE to receive respectively beacon frame on different channels; Send the time difference of beacon frame by regulating adjacent AP, make the UE can be in the situation that scan the beacon frame of previous channel, one also scans beacon frame surely on a rear channel, this mode makes UE can scan AP as much as possible, thereby contributes to realize selection and the access of UE to AP.

In technique scheme, preferably, the process that described mobile radio networks assists described terminal to carry out described scan operation comprises: described mobile radio networks sends WLAN (wireless local area network) access data message frame based on Access Network node and/or core net node to described terminal, and described WLAN (wireless local area network) access data message frame at least comprises the scanning configuration parameter; Described terminal receives described WLAN (wireless local area network) access data message frame, and carries out described scan operation according to described scanning configuration parameter.

In this technical scheme, 3GPP can be configured the parameter of UE, and the configuration parameter of itself and AP is mated more, thereby contribute to increase UE, scans successful probability.Certainly, the 3GPP network can only be regulated the configuration of AP or UE, contributes to shorten adjusting time and complexity; Also can to two sides' configuration, all be regulated, contributing to increases the effect of regulating, and makes UE more easily realize the scanning to AP simultaneously.

In technique scheme, preferably, described scanning configuration parameter comprise following at least one or a combination set of: advise that described terminal carries out the channel of scanning; Advise that described terminal starts the time point of scanning; Advise the cycle of described terminal execution scanning.

In this technical scheme, due to the limited amount of the AP in Candidate Set, may only be distributed in some or several channels, by suggestion, UE only scans these channels, thereby shortens sweep time, increases and is scanned into power; The known AP of 3GPP network sends the zero-time of beacon frame, the time started of carrying out scanning by configuration UE, such as making the time started just early than AP, send the zero-time of beacon frame, thereby has increased the success rate of UE scanning; The known AP of 3GPP network sends the cycle of beacon frame, by the scan period of configuration UE, such as the shortening scan period shortens sweep time, reduce power consumption, or the prolongation scan period increases the success rate of scanning.

In technique scheme, preferably, described WLAN (wireless local area network) access data message frame is the RRC signaling, comprises downlink information transmission (DL information transfer) signaling.

In this technical scheme, WLAN access data message frame is the RRC signaling, this RRC signaling can be existing signaling, such as DL information transfer signaling, by adding the scanning configuration parameter in certain territory in this signaling, or add the scanning configuration parameter in the information element of or new expansion existing at certain, realize the configuration adjustment to UE; Simultaneously, this RRC signaling can be also other existing signalings, or the dedicated signaling of new definition.

In technique scheme, preferably, the process that described mobile radio networks assists described terminal to carry out described scan operation comprises: the configuration parameter of at least one wireless local network connecting point in described Candidate Set is sent to described terminal; Wherein, the configuration parameter of described at least one wireless local network connecting point comprise following at least one or a combination set of: the residing channel of at least one wireless local network connecting point in described Candidate Set, send beacon frame time point, send cycle of beacon frame.

In this technical scheme, the 3GPP network can directly be informed UE by the configuration parameter by AP, thereby can regulate voluntarily the configuration of self according to above-mentioned configuration parameter by UE, make self configuration can with Candidate Set in the configuration parameter of AP be complementary.This scheme contributes to reduce the Capability Requirement to the 3GPP network, reduces the system cost of 3GPP network, and makes UE have the larger adjusting degree of freedom.

In technique scheme, preferably, when described terminal is carried out described scan operation, also comprise: when the state parameter of the beacon frame sent when the wireless local network connecting point that scans appointment meets default alternative condition, stop described scan operation, and directly the wireless local network connecting point of described appointment is carried out to access operation.

In this technical scheme, the state parameter of beacon frame comprises its signal strength signal intensity reflected, signal quality etc., and this has reflected network or the signal condition of corresponding AP to a certain extent.Therefore, UE can determine whether to stop in time scan operation by the investigation of the state parameter to beacon frame, to help the power consumption that shortens sweep time and reduction UE, and is reflected as and has sweep speed and further access speed faster to the user.

The invention allows for a kind of network insertion auxiliary system, comprise mobile radio networks and terminal, wherein, described mobile radio networks comprises: access point selection module, for the positional information according to described terminal, select the Candidate Set corresponding to the wireless local network connecting point of described positional information; The scanning assistance module, carry out the scan operation to described Candidate Set for assisting described terminal.

In technique scheme, preferably, described mobile radio networks comprises the primary importance measurement module, for initiatively measuring the positional information of described terminal; Or described terminal comprises second place measurement module and information reporting module, described second place measurement module is for measuring the positional information of described terminal, and the described positional information of described information reporting module for reporting to described mobile radio networks.

In technique scheme, preferably, the positional information of described terminal comprises the position coordinates of described terminal, described access point selection module is estimated the residing scope of access point of service can be provided for described terminal according to described position coordinates, and the wireless local network connecting point in described scope is included in described Candidate Set; Or the positional information of described terminal comprises described terminal residing cell/section in described mobile radio networks, described access point selection module is included all wireless local network connecting points in the residing cell/section of described terminal in described Candidate Set in; Or the positional information of described terminal comprises described position coordinates and the residing cell/section of described terminal, described access point selection module will be in described effective range of receiving and the wireless local network connecting point that belongs to the residing cell/section of described terminal include in described Candidate Set.

In technique scheme, preferably, described access point selection module take described position coordinates as the center of circle, circular coverage area that effectively receiving range is radius is described scope; Wherein, described effective receiving range is predeterminable range; Or described access point selection module to take the covering radius of described wireless local network connecting point be described effective receiving range, and according to obtain manner and/or the residing environment scene of described position coordinates of described position coordinates, described effective receiving range is regulated.

In technique scheme, preferably, described access point selection module is also checked state parameter and/or the configuration parameter of each wireless local network connecting point in described Candidate Set, if described state parameter and/or described configuration parameter do not meet default alternative condition, corresponding wireless local network connecting point is screened out from described Candidate Set.

In technique scheme, preferably, described scanning assistance module sends the access point parameters regulating command to the network management system of described WLAN (wireless local area network), the information and the parameter regulative mode that at least comprise described Candidate Set in described access point parameters regulating command, by described network management system, the configuration parameter of at least one wireless local network connecting point in described Candidate Set is regulated, and make described Candidate Set after adjusting meet the following conditions at least one or a combination set of: the wireless local network connecting point in described Candidate Set and the clock synchronous of described mobile radio networks or keep a regular time poor, between adjacent wireless local network connecting point, if exist, cover intersection region, use mutual glitch-free channel, use different beacon frame transmitting times between different wireless local network connecting points, the time difference δ that two adjacent wireless local network connecting points send beacon frame meets: T-Δ T<δ<2T-Δ T-t, wherein, T is the cycle that described terminal is carried out scan channel, t is that arbitrary described wireless local network connecting point sends the required time span of beacon frame, T1 is that described terminal starts to carry out the time point of scan channel at previous wireless local network connecting point channel of living in, T2 is the time point that described previous wireless local network connecting point starts to send beacon frame, and Δ T=T2-T1.

In technique scheme, preferably, Access Network node and/or the core net node of described scanning assistance module based on described mobile radio networks sends WLAN (wireless local area network) access data message frame to described terminal, and described WLAN (wireless local area network) access data message frame at least comprises the scanning configuration parameter; Described terminal comprises: the scanning Executive Module, carry out described scan operation for the described scanning configuration parameter of the described WLAN (wireless local area network) access data message frame according to receiving.

In technique scheme, preferably, described scanning assistance module is sent to described terminal by the configuration parameter of at least one wireless local network connecting point in described Candidate Set; Wherein, the configuration parameter of described at least one wireless local network connecting point comprise following at least one or a combination set of: the residing channel of at least one wireless local network connecting point in described Candidate Set, send beacon frame time point, send cycle of beacon frame.

In technique scheme, preferably, described terminal also comprises: the parameter judge module, for when carrying out described scan operation, judges whether the state parameter of the beacon frame of the wireless local network connecting point transmission that scans appointment meets default alternative condition; Wherein, if meet, described terminal stops described scan operation, and directly the wireless local network connecting point of described appointment is carried out to access operation.

By above technical scheme, make the positional information that the 3GPP network can be based on UE, by the modes such as access point of the access of offering suggestions to it, assist UE to realize the access operation to wlan network.

The accompanying drawing explanation

Fig. 1 shows end-on of the prior art and enters a schematic diagram of carrying out drive sweep;

Fig. 2 shows the flow chart of network insertion householder method according to an embodiment of the invention;

Fig. 3 shows the block diagram of network insertion auxiliary system according to an embodiment of the invention;

Fig. 4 shows the schematic diagram of the selection of the position coordinates based on terminal AP Candidate Set according to an embodiment of the invention;

Fig. 5 shows the schematic diagram of selecting according to an embodiment of the invention the AP Candidate Set based on terminal community of living in;

Fig. 6 shows the schematic diagram that the AP Candidate Set is selected in the position coordinates based on terminal according to an embodiment of the invention and terminal community of living in;

Fig. 7 A to Fig. 7 C shows according to an embodiment of the invention access point or terminal is carried out to the schematic diagram that coordinates adjusting;

Fig. 8 shows 3GPP network assistance terminal according to an embodiment of the invention and carries out the drive sweep of access point and the flow chart of access.

Embodiment

In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that do not conflict, the application's embodiment and the feature in embodiment can combine mutually.

A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.

Fig. 2 shows the flow chart of network insertion householder method according to an embodiment of the invention.

As shown in Figure 2, network insertion householder method according to an embodiment of the invention comprises: step 202, and mobile radio networks, according to the positional information of terminal, is selected the Candidate Set corresponding to the wireless local network connecting point of described positional information; Step 204, described mobile radio networks assists described terminal to carry out the scan operation to described Candidate Set.

Simultaneously, those skilled in the art can understand: " adjacent AP " refers on geographical position at a distance of nearer a plurality of AP, such as can be by a distance threshold or a plurality of corresponding to the distance threshold under the varying environment condition be set,, when the distance between two AP is less than above-mentioned distance threshold, be judged to be adjacent AP.Certainly, for a plurality of AP, whether belong to adjacent AP, can measure in the initial deployment stage of AP, and be stored as the configuration data of a plurality of AP.

In technique scheme, preferably, when described terminal is carried out described scan operation, also comprise: when the state parameter of the beacon frame sent when the wireless local network connecting point that scans appointment meets default alternative condition, stop described scan operation, and be directly that wireless local network connecting point is carried out access operation to described appointment.

Fig. 3 shows the block diagram of network insertion auxiliary system according to an embodiment of the invention.

As shown in Figure 3, network insertion auxiliary system according to an embodiment of the invention 300, comprise mobile radio networks 302 and terminal 304, wherein, described mobile radio networks 302 comprises: access point selection module 3022, for the positional information according to described terminal, select the Candidate Set corresponding to the wireless local network connecting point of described positional information; Scanning assistance module 3024, carry out the scan operation to described Candidate Set for assisting described terminal.

In this technical scheme, the 3GPP network is wireless mobile communications (Wireless Mobile Communication) network 302, such as GSM, CDMA etc.The 3GPP network is based on UE(terminal 304) positional information, select the Candidate Set of corresponding AP from all AP, such as being positioned at UE on every side or near AP, thereby in fact the UE dwindled needs the sweep limits of carrying out, contribute to shorten the sweep time of UE, and reduce thus UE for carrying out the kwh loss of scan operation.

In technique scheme, preferably, described mobile radio networks 302 comprises primary importance measurement module 3026, for initiatively measuring the positional information of described terminal 304; Or described terminal 304 comprises second place measurement module 3042 and information reporting module 3044, described second place measurement module 3042 is for measuring the positional information of described terminal 304, and the described positional information of described information reporting module 3044 for reporting to described mobile radio networks 302.

In technique scheme, preferably, the positional information of described terminal 304 comprises the position coordinates of described terminal 304, described access point selection module 3022 is estimated the residing scope of access point that can provide service for described terminal 304 according to described position coordinates, and the wireless local network connecting point in described scope is included in described Candidate Set; Or the positional information of described terminal 304 comprises described terminal 304 residing cell/section in described mobile radio networks 302, described access point selection module 3022 is included all wireless local network connecting points in the residing cell/section of described terminal 304 in described Candidate Set in; Or the positional information of described terminal 304 comprises described position coordinates and the residing cell/section of described terminal 304, described access point selection module 3022 will be in described effective range of receiving and the wireless local network connecting point that belongs to described terminal 304 residing cell/sections include in described Candidate Set.

In technique scheme, preferably, described access point selection module 3022 take described position coordinates as the center of circle, circular coverage area that effectively receiving range is radius is described scope; Wherein, described effective receiving range is predeterminable range; Or described access point selection module 3022 to take the covering radius of described wireless local network connecting point be described effective receiving range, and according to obtain manner and/or the residing environment scene of described position coordinates of described position coordinates, described effective receiving range is regulated.

In technique scheme, preferably, described access point selection module 3022 is also checked state parameter and/or the configuration parameter of each wireless local network connecting point in described Candidate Set, if described state parameter and/or described configuration parameter do not meet default alternative condition, corresponding wireless local network connecting point is screened out from described Candidate Set.

In technique scheme, preferably, described scanning assistance module 3024 sends the access point parameters regulating command to the network management system of described WLAN (wireless local area network), the information and the parameter regulative mode that at least comprise described Candidate Set in described access point parameters regulating command, by described network management system, the configuration parameter of at least one wireless local network connecting point in described Candidate Set is regulated, and make described Candidate Set after adjusting meet the following conditions at least one or a combination set of: the wireless local network connecting point in described Candidate Set and the clock synchronous of described mobile radio networks or keep a regular time poor, between adjacent wireless local network connecting point, if exist, cover intersection region, use mutual glitch-free channel, use different beacon frame transmitting times between different wireless local network connecting points, the time difference δ that two adjacent wireless local network connecting points send beacon frame meets: T-Δ T<δ<2T-Δ T-t, wherein, T is the cycle that described terminal 304 is carried out scan channel, t is that arbitrary described wireless local network connecting point sends the required time span of beacon frame, T1 is that described terminal 304 starts to carry out the time point of scan channel at previous wireless local network connecting point channel of living in, T2 is the time point that described previous wireless local network connecting point starts to send beacon frame, and Δ T=T2-T1.

In technique scheme, preferably, Access Network node and/or the core net node of described scanning assistance module 3024 based on described mobile radio networks sends WLAN (wireless local area network) access data message frame to described terminal 304, and described WLAN (wireless local area network) access data message frame at least comprises the scanning configuration parameter; Described terminal 304 comprises: scanning Executive Module 3046, carry out described scan operation for the described scanning configuration parameter of the described WLAN (wireless local area network) access data message frame according to receiving.

In technique scheme, preferably, described scanning configuration parameter comprise following at least one or a combination set of: advise that described terminal 304 carries out the channel of scanning; Advise that described terminal 304 starts the time point of scanning; Advise the cycle that described terminal 304 is carried out scanning.

In technique scheme, preferably, described scanning assistance module 3024 is sent to described terminal by the configuration parameter of at least one wireless local network connecting point in described Candidate Set; Wherein, the configuration parameter of described at least one wireless local network connecting point comprise following at least one or a combination set of: the residing channel of at least one wireless local network connecting point in described Candidate Set, send beacon frame time point, send cycle of beacon frame.

In technique scheme, preferably, described terminal 304 also comprises: parameter judge module 3048, for when carrying out described scan operation, judges whether the state parameter of the beacon frame of the wireless local network connecting point transmission that scans appointment meets default alternative condition; Wherein, if meet, described terminal stops described scan operation, and to described appointment, is directly that wireless local network connecting point is carried out access operation.

Below, based on Fig. 4 to Fig. 7 C, further technical scheme of the present invention is described.

Main thought of the present invention is: for UE selects the Candidate Set of AP, thereby the scope of dwindling UE required search when scanning shortens sweep time, thereby is conducive to the power saving of UE; Further, by the configuration adjustment to AP and/or UE, make between the two coupling more, UE can search AP within the shorter time, and/or searches more AP, thereby helps UE to complete as early as possible scanning and the access to AP.

To achieve these goals, the present invention need to realize the content of following part:

One, APs Candidate Set appraisal procedure and principle

1) based on the UE position coordinates

At first, by the position coordinates of UE independent measurement self and report to the 3GPP network, perhaps by the position coordinates of 3GPP network independent measurement UE, perhaps by UE, under the cooperation of 3GPP network, carried out the measurement to self, and report to the 3GPP network, or carried out the measurement to UE by the 3GPP network under the cooperation of UE.

Particularly, any one or its combination of location technology in can be in the following ways: global position system (GNSS, as GPS, dipper system etc.), network-assisted poor location technology (OTDOA) of satellite positioning tech (A-GNSS), the time of advent, angle detection and location technology (AOA) etc.

Specifically as shown in Figure 4, at first, suppose that measuring terminal 402(by above-mentioned location technology is UE) position coordinates be U(x, y), x wherein, y are concrete latitude and longitude coordinates value.Certainly, because there is certain error in location technology, thereby also can not adopt concrete latitude and longitude coordinates value, but be expressed as a scope.

Then, determine the scope be associated with this terminal 402.Above rheme puts coordinate or scope is the center of circle, take the L shown in Fig. 4 as a circular scope of radius formation, and the AP of this scope is considered to belong near the AP of terminal 402, and is included in Candidate Set.Such as in Fig. 4, AP(access point) 1, AP2, AP3 all in above-mentioned circular scope, thereby be included in the Candidate Set corresponding to terminal 402, and AP4 is due in above-mentioned circular scope, thereby can't be included in Candidate Set.

Wherein, L is effective covering radius, can be the fixing numerical value obtained based on experience value, can be also the numerical value calculated in real time.Below introduce several can be for calculating in real time the mode of the numerical value of L:

(1) by formula L=R ± α+γ, calculated.In this formula, parameters R is " precision regulatory factor ", according to the positioning precision of adopted concrete location technology, determines.As adopt the GPS location technology, the R value is at 10 to 20(rice) between; Parameter alpha is " scene regulatory factor ", according to concrete covering scene (High-Density Urban Area, suburb etc.), utilizes the α value to be revised L; Parameter γ is the AP covering radius factor, according to the effective coverage range of AP in the actual deployment scene (when disposing AP or other any times, can by measuring), L is revised.

(2) by formula L=β * R+ γ, calculated.In this formula, β is defined as " scene regulatory factor " (α and β all mean the impact of scene on precision, but they value mode difference); Parameters R, γ are identical with foregoing.

2) based on the residing cell/section of UE

As shown in Figure 5, base station 504 is corresponding to a plurality of cell/sections, can initiatively determine the residing cell/section of terminal 502 by base station 504, or can be by terminal 502 initiatively to base station, 504 report self residing cell/section, then by the 3GPP network of base station 504 correspondences, all AP in terminal 402 cell/section of living in are all included in to the Candidate Set of terminal 502 correspondences.

Such as when terminal 502 during in community 3, same AP1, AP2 and AP3 in community 3 all is included in the Candidate Set of terminal 502 correspondences, and AP4 is due in the community in different (community 1), thereby can't be included in above-mentioned Candidate Set.

3) position coordinates and the UE residing cell/section of while based on UE

In order further to dwindle the quantity of the AP in Candidate Set, make the selection of AP wherein more accurate, can associated methods 1) and method 2).

Such as based on method 1), by obtaining the position coordinates of terminal 602, determine that the AP in terminal 602 certain limits comprises AP1, AP2 and AP3; Based on method 2), according to the residing community of terminal 602, be community 3, determine that the AP in community 3 comprises AP2, AP3 and AP4.Comprehensive the above results, determine that the AP in the Candidate Set that is included into terminal 602 correspondences is AP2 and AP3.

4) state based on AP or configuring condition

Set in advance some alternative conditions, such as the load of the operator under AP, AP, the access of AP etc., thereby the AP that does not meet above-mentioned condition is screened out.

Such as when certain AP load (surpasses a certain threshold value) greatly, this AP should not be included in final selected " APs Candidate Set "; Perhaps, when certain AP forbids access (if do not belonged to same operator) because of certain reason, this AP should not be included in final selected Candidate Set.

Two, the configuration parameter of APs and UE is coordinated

According to existing 802.11 agreement regulations, UE, when carrying out drive sweep, can monitor with certain cycle the detectable signal (Beacon frame) that APs sends on each channel; The Beacon frame is periodically sent by APs, and its cycle is configured by APs.

The present invention wishes to send by reasonably configuring APs time, cycle and the channel parameter etc. of detectable signal (beacon signal), and when UE initiates Network finding, according to the APs deployment parameters, the parameters such as the time of the rational passive search of configuration UE, channel, make the configuration between UE and AP mutually coordinate coupling, thereby reach the purpose of quick discovery APs.

1) for the parameter configuration of AP

Be configured for AP, can be included in the initial configuration during the network design of AP, also can be included in dynamic (or semi-static) configuration based on the WLAN network management system of AP run duration.After the AP configuration adjustment, hope below can meeting at least one or a combination set of:

(1) clock synchronous of the AP in Candidate Set and 3GPP network or keep a regular time poor (offset).By regulating the clock of 3GPP network and the residing wlan network of AP, the time point that contributes to UE to select accordingly the scanning of self to start, thus increase the possibility that scans AP.

(2) between adjacent AP, if exist, cover intersection region, use mutual glitch-free channel.The channel adopted by regulating AP, the channel that makes adjacent AP adopt can not produce mutually and disturb, and such as selecting to produce the channel 1 of disturbing mutually, channel 6, channel 11 etc., thereby avoids channel to disturb mutually the scan channel that affects UE.

(3) use different beacon frame transmitting times between different wireless local network connecting points.Send the time of beacon frame by regulating different AP, thereby make the transmitting time of the AP on different channels mutually stagger, contribute to UE to receive respectively beacon frame on different channels.

(4) the time difference δ of two adjacent wireless local network connecting points transmission beacon frames meets: T-Δ T<δ<2T-Δ T-t, wherein, T is the cycle that described terminal is carried out scan channel, t is that arbitrary described wireless local network connecting point sends the required time span of beacon frame, T1 is that described terminal starts to carry out the time point of scan channel at previous wireless local network connecting point channel of living in, T2 is the time point that described previous wireless local network connecting point starts to send beacon frame, and Δ T=T2-T1.

Send the time difference of beacon frame by regulating adjacent AP, make the UE can be in the situation that scan the beacon frame of previous channel, one also scans beacon frame surely on a rear channel, this mode makes UE can scan AP as much as possible, thereby contributes to realize selection and the access of UE to AP.

For the time difference formula in above-mentioned (4) (T-Δ T<δ<2T-Δ T-t), in conjunction with Fig. 7 A and Fig. 7 B, describe.

AP1 and the AP2 in channel B of take in channel A as shown in Figure 7 A, are example.Suppose that UE enters in channel A and scanned at certain time point, and, after the Δ T time period, AP1 starts to send beacon frame in channel A.After having experienced time period δ, UE switches in channel B and is scanned, and the AP2 in channel B should start to send beacon frame the earliest just when time period δ end, UE switch to channel B, to guarantee UE, can receive the beacon frame that AP2 sends.

Wherein, if wish, UE can either scan the beacon frame that AP1 sends, and can scan again the beacon frame that AP2 sends, and the minimum value of the time difference δ between AP1 and AP2 is δ min=T-Δ T, and should meet Δ T >=0.

As shown in Figure 7 B, suppose that UE enters in channel A and scanned at certain time point, and, after the Δ T time period, AP1 starts to send beacon frame in channel A.At least after AP1 sends beacon frame, when T finishes, UE switches in channel B and is scanned.Because AP1 and AP2 need the identical time for sending beacon frame under same standard, such as this time period is t, at least should guarantee when AP2 sends beacon frame or afterwards, UE just leave channel B(the T on channel B finish).

Wherein, if wish, UE can either scan the beacon frame that AP1 sends, and can scan again the beacon frame that AP2 sends, and the maximum of the time difference δ between AP1 and AP2 is δ max=2T-Δ T-t, and should meet Δ T >=0.

If make the time started of the AP transmission beacon frame on every two adjacent channels all meet T-Δ T<δ<2T-Δ T-t,, when UE can receive the beacon frame of certain AP transmission, must receive the beacon frame that other AP send.

Yet, in order to reduce the complexity for the configuration of AP, be convenient to realize management, can adopt the mode as shown in Fig. 7 C, between AP corresponding to all adjacent channels, keep poor δ of regular time to send beacon frame, and δ=T(T is UE scan period).

So, in a kind of situation, can be all identical by the cycle that makes the AP transmission beacon frame that all channels are corresponding, such as the T1=T2=T3 made in Fig. 7 C.

In another kind of situation, do not need to regulate the transmission cycle of AP.Such as including channel A in Fig. 7 C, channel B, the AP1 that channel C is corresponding, AP2, respectively twice transmission of AP3 is (owing to being periodic, thereby only with twice, be sent as example and describe) schematic diagram of beacon frame, although AP1, AP2, the transmission cycle that AP3 adopts may be different, but only need to guarantee that the beacon frame that for the first time send of AP1 on channel A can be scanned by UE, and AP1, AP2, AP3 sends for the first time respectively between the time point of beacon frame and meets T-Δ T<δ<2T-Δ T-t, the beacon frame that just can make AP2 and AP3 send for the first time can be scanned by UE, and without the transmission situation of paying close attention to follow-up beacon frame.

2) for the parameter configuration of UE

Comprise Access Network based on the 3GPP network and/or the configuration mode of core net.

(1) Access Network node or the core net node by the 3GPP network sends to UE by the configuration parameter of the AP in Candidate Set, makes UE regulate voluntarily accordingly the configuration parameter of self, realizes being complementary with the configuration parameter of AP.Particularly, configuration parameter comprise following at least one or a combination set of: the residing channel of at least one AP in Candidate Set, send beacon frame time point, send cycle of beacon frame.

(2), by the Access Network node of 3GPP network or the configuration parameter of the AP of core net node based in Candidate Set, calculate the scanning configuration parameter of UE, and use this scanning configuration parameter to be configured by UE.Particularly, the scanning configuration parameter comprise following at least one or a combination set of: suggestion UE carries out the channel of scanning; The time point that suggestion UE starts scanning; The cycle that suggestion UE carries out scanning.

As shown in Figure 8, the execution of 3GPP network assistance terminal comprises the drive sweep of access point and the flow process of access according to an embodiment of the invention:

Step 802, trigger flow process.

The triggering of this flow process can be periodic triggers, can be also that acyclic time point triggers; Can be the user manually to the triggering of UE, the also triggering of 3GPP network side or wlan network side.Possible trigger condition is as follows:

-user triggers

The Network finding request that the interoperability that √ triggers due to certain demand of user (as, upper layer application or the subjective demand of user) causes;

The autonomous Network finding request of finding that available wlan network the handover request triggered cause of √ user terminal;

-network-triggered

√ is due to certain strategy of operator, and the tendentious WLAN of utilization carries out triage operator, needs the Network finding request caused to the handover request of wlan system by network-triggered in cycle;

√ is because the user moves the 3GPP network signal deterioration caused, the Network finding request that the handover request triggered by network side causes;

√ is because the Network finding request that the overweight handover request based on load balancing triggered by the 3GPP network side of 3GPP offered load causes;

The Network finding request that the handover request that √ is triggered by network side because of the consideration that the wlan network underload switches based on load causes.

Step 804, the UE positional information obtain the acquisition with the AP/APs Candidate Set.

The positional information of UE, specifically can be obtained by UE, 3GPP network or both assistance; And based on this positional information, adopt the adjusting of " whether in the UE certain limit " (referring to Fig. 4 and related text explanation thereof) or " whether being positioned at the residing cell/section of UE " (referring to Fig. 5 and related text explanation thereof) to be screened, or adopt above-mentioned two kinds of adjustings to be screened (referring to Fig. 6 and related text explanation thereof) simultaneously.

Step 806, regulated the configuration parameter of the AP in UE and/or Candidate Set.Particularly, according to the difference of controlled plant, can be divided into the configuration parameter of AP is regulated and the configuration parameter of UE is regulated.

the parameter coordination of APs side: the parameter coordination of APs side can be divided into deployment Network Based with two kinds of modes of semi-static configuration,

-deployment Network Based.This mode mainly completes during the network design of APs, by reasonably configuring the parameter of APs in macrocell, can be adapted to the configuration of the UE of all or most execution scanning or access.

-semi-static configuration.To be mainly the network management system of utilizing WLAN carry out semi-static adjusting to the configuration parameter of the APs in Candidate Set to this mode.

No matter adopt which kind of mode, the configuration of APs all needs to meet in following the requirement at least one or a combination set of:

The clock synchronous of the AP in-Candidate Set and 3GPP network or keep a regular time poor (offset).

Between-adjacent AP, if exist, cover intersection region, use mutual glitch-free channel.

Use different beacon frame transmitting times between-different wireless local network connecting point.

The time difference δ that-two adjacent wireless local network connecting points send beacon frame meets: T-Δ T<δ<2T-Δ T-t, wherein, T is the cycle that described terminal is carried out scan channel, t is that arbitrary described wireless local network connecting point sends the required time span of beacon frame, T1 is that described terminal starts to carry out the time point of scan channel at previous wireless local network connecting point channel of living in, T2 is the time point that described previous wireless local network connecting point starts to send beacon frame, and Δ T=T2-T1.

the parameter coordination of UE side.The parameter coordination of UE side can complete by being divided into based on core net with based on two kinds of modes of Access Network.Need to be according to APs quantity and configuration parameter (as the detectable signal emission cycle of APs, the information such as APs place channel/frequency, APs identifier), reasonably the scan period length of selection and configuration UE, scanning time started point and scanning channel etc.

-parameter coordination based on core net.After Candidate Set is chosen, the 3GPP network can, according to the configuration information of APs in this Candidate Set, be formulated the scanning configuration parameter (comprising scan period length, scanning time started point and scanning channel etc.) of UE.By core net node as MME or ANDSF(Access Network Discovery Support Functions, access network discovery and selection function unit) be updated to UE.

-based on the Access Network parameter coordination.The 3GPP network can, according to the configuration parameter of APs in Candidate Set, be formulated the scanning configuration parameter (comprising scan period length, scanning time started point and scanning channel etc.) of STA, and send to UE by Access Network.

Above-mentioned configuration information can pass to UE in the following manner:

The RRC specific messages of-Xin definition, as " WLAN interworking information " signaling.

-utilize existing RRC message, as " DL information transfer " signaling.The new IE " dlInformationTransfer-r12 " of definition in this message, by the configuration parameter of target AP and/3GPP is that the scanning configuration parameter that UE generates passes to UE.

Step 808, UE is the scanning configuration parameter that UE configures according to configuration parameter and/or the 3GPP network of the AP in the Candidate Set received, carries out scanning and initial access to the AP in Candidate Set.

Particularly, can preset one or more signal condition condition, while with the signal power of the beacon frame that scans and/or quality etc., reaching default signal condition condition, stop follow-up scan operation, the directly access operation of execution to this beacon frame corresponding A P.

Step 810, process ends.

More than be described with reference to the accompanying drawings technical scheme of the present invention, consider that in prior art, 3GPP network and wlan network can't help UE to realize scanning and the access operation to wlan network by interoperability, therefore, the invention provides a kind of network insertion householder method and a kind of network insertion auxiliary system, make the positional information that the 3GPP network can be based on UE, by the modes such as access point of the access of offering suggestions to it, assist UE to realize the access operation to wlan network.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a network insertion householder method, is characterized in that, comprising:

Mobile radio networks, according to the positional information of terminal, is selected the Candidate Set corresponding to the wireless local network connecting point of described positional information;

Described mobile radio networks assists described terminal to carry out the scan operation to described Candidate Set.

2. network insertion householder method according to claim 1, is characterized in that, the described process of obtaining the positional information of described terminal comprises:

Described mobile radio networks is initiatively measured the positional information of described terminal;

Or himself the positional information that reports to described mobile radio networks of described terminal.

3. network insertion householder method according to claim 1, is characterized in that, the process of selecting described Candidate Set comprises:

The positional information of described terminal comprises the position coordinates of described terminal, described mobile radio networks is estimated the residing scope of access point of service can be provided for described terminal according to described position coordinates, and the wireless local network connecting point in described scope is included in described Candidate Set;

Or the positional information of described terminal comprises described terminal residing cell/section in described mobile radio networks, described mobile radio networks is included all wireless local network connecting points in the residing cell/section of described terminal in described Candidate Set in;

Or the positional information of described terminal comprises described position coordinates and the residing cell/section of described terminal, described mobile radio networks will be in described effective range of receiving and the wireless local network connecting point that belongs to the residing cell/section of described terminal include in described Candidate Set.

4. network insertion householder method according to claim 3, is characterized in that, the process of estimating described scope comprises:

Take described position coordinates as the center of circle, circular coverage area that effectively receiving range is radius is described scope;

Wherein, described effective receiving range is predeterminable range;

Or to take the covering radius of described wireless local network connecting point be described effective receiving range, and according to obtain manner and/or the residing environment scene of described position coordinates of described position coordinates, described effective receiving range is regulated.

5. network insertion householder method according to claim 1, is characterized in that, also comprises:

Described mobile radio networks is checked state parameter and/or the configuration parameter of each wireless local network connecting point in described Candidate Set, if described state parameter and/or described configuration parameter do not meet default alternative condition, corresponding wireless local network connecting point is screened out from described Candidate Set.

6. network insertion householder method according to claim 1, is characterized in that, the process that described mobile radio networks assists described terminal to carry out described scan operation comprises:

Network management system to WLAN (wireless local area network) sends the access point parameters regulating command, the information and the parameter regulative mode that at least comprise described Candidate Set in described access point parameters regulating command, by described network management system, the configuration parameter of at least one wireless local network connecting point in described Candidate Set is regulated, and make described Candidate Set after adjusting meet the following conditions at least one or a combination set of:

Wireless local network connecting point in described Candidate Set and the clock synchronous of described mobile radio networks or keep a regular time poor;

Between adjacent wireless local network connecting point, if exist, cover intersection region, use mutual glitch-free channel;

Use different beacon frame transmitting times between different wireless local network connecting points;

The time difference δ that two adjacent wireless local network connecting points send beacon frame meets: T-Δ T<δ<2T-Δ T-t, wherein, T is the cycle that described terminal is carried out scan channel, t is that arbitrary described wireless local network connecting point sends the required time span of beacon frame, T1 is that described terminal starts to carry out the time point of scan channel at previous wireless local network connecting point channel of living in, T2 is the time point that described previous wireless local network connecting point starts to send beacon frame, and Δ T=T2-T1.

7. according to the described network insertion householder method of any one in claim 1 to 6, it is characterized in that, the process that described mobile radio networks assists described terminal to carry out described scan operation comprises:

Described mobile radio networks sends WLAN (wireless local area network) access data message frame based on Access Network node and/or core net node to described terminal, and described WLAN (wireless local area network) access data message frame at least comprises the scanning configuration parameter;

Described terminal receives described WLAN (wireless local area network) access data message frame, and carries out described scan operation according to described scanning configuration parameter.

8. network insertion householder method according to claim 7, is characterized in that, described scanning configuration parameter comprise following at least one or a combination set of:

Advise the channel of described terminal execution scanning;

Advise that described terminal starts the time point of scanning;

Advise the cycle of described terminal execution scanning.

9. network insertion householder method according to claim 7, is characterized in that, described WLAN (wireless local area network) access data message frame is the RRC signaling, comprises downlink information transmission (DL information transfer) signaling.

10. according to the described network insertion householder method of any one in claim 1 to 6, it is characterized in that, the process that described mobile radio networks assists described terminal to carry out described scan operation comprises:

The configuration parameter of at least one wireless local network connecting point in described Candidate Set is sent to described terminal;

Wherein, the configuration parameter of described at least one wireless local network connecting point comprise following at least one or a combination set of:

The cycle of the residing channel of at least one wireless local network connecting point in described Candidate Set, the time point that sends beacon frame, transmission beacon frame.

11. according to the described network insertion householder method of any one in claim 1 to 6, it is characterized in that, when described terminal is carried out described scan operation, also comprise:

When the state parameter of the beacon frame sent when the wireless local network connecting point that scans appointment meets default alternative condition, stop described scan operation, and directly the wireless local network connecting point of described appointment is carried out to access operation.

12. a network insertion auxiliary system, is characterized in that, comprises mobile radio networks and terminal, wherein,

Described mobile radio networks comprises:

Access point selection module, for the positional information according to described terminal, select the Candidate Set corresponding to the wireless local network connecting point of described positional information;

The scanning assistance module, carry out the scan operation to described Candidate Set for assisting described terminal.

13. network insertion auxiliary system according to claim 12, is characterized in that,

Described mobile radio networks comprises the primary importance measurement module, for initiatively measuring the positional information of described terminal;

Or described terminal comprises second place measurement module and information reporting module, described second place measurement module is for measuring the positional information of described terminal, and the described positional information of described information reporting module for reporting to described mobile radio networks.

14. network insertion auxiliary system according to claim 12, is characterized in that,

The positional information of described terminal comprises the position coordinates of described terminal, described access point selection module is estimated the residing scope of access point of service can be provided for described terminal according to described position coordinates, and the wireless local network connecting point in described scope is included in described Candidate Set;

Or the positional information of described terminal comprises described terminal residing cell/section in described mobile radio networks, described access point selection module is included all wireless local network connecting points in the residing cell/section of described terminal in described Candidate Set in;

Or the positional information of described terminal comprises described position coordinates and the residing cell/section of described terminal, described access point selection module will be in described effective range of receiving and the wireless local network connecting point that belongs to the residing cell/section of described terminal include in described Candidate Set.

15. network insertion auxiliary system according to claim 14, is characterized in that, described access point selection module take described position coordinates as the center of circle, circular coverage area that effectively receiving range is radius is described scope;

Wherein, described effective receiving range is predeterminable range;

Or described access point selection module to take the covering radius of described wireless local network connecting point be described effective receiving range, and according to obtain manner and/or the residing environment scene of described position coordinates of described position coordinates, described effective receiving range is regulated.

16. network insertion auxiliary system according to claim 12, it is characterized in that, described access point selection module is also checked state parameter and/or the configuration parameter of each wireless local network connecting point in described Candidate Set, if described state parameter and/or described configuration parameter do not meet default alternative condition, corresponding wireless local network connecting point is screened out from described Candidate Set.

17. network insertion auxiliary system according to claim 12, it is characterized in that, described scanning assistance module sends the access point parameters regulating command to the network management system of described WLAN (wireless local area network), the information and the parameter regulative mode that at least comprise described Candidate Set in described access point parameters regulating command, by described network management system, the configuration parameter of at least one wireless local network connecting point in described Candidate Set is regulated, and make described Candidate Set after adjusting meet the following conditions at least one or a combination set of:

18. according to claim 12 to the described network insertion auxiliary system of any one in 17, it is characterized in that, Access Network node and/or the core net node of described scanning assistance module based on described mobile radio networks sends WLAN (wireless local area network) access data message frame to described terminal, and described WLAN (wireless local area network) access data message frame at least comprises the scanning configuration parameter;

Described terminal comprises: the scanning Executive Module, carry out described scan operation for the described scanning configuration parameter of the described WLAN (wireless local area network) access data message frame according to receiving.

19. network insertion auxiliary system according to claim 18, is characterized in that, described scanning configuration parameter comprise following at least one or a combination set of:

Advise the channel of described terminal execution scanning;

Advise that described terminal starts the time point of scanning;

Advise the cycle of described terminal execution scanning.

20. network insertion auxiliary system according to claim 18, is characterized in that, described WLAN (wireless local area network) access data message frame is the RRC signaling, comprises downlink information transmission (DL information transfer) signaling.

21. according to claim 12 to the described network insertion auxiliary system of any one in 17, it is characterized in that, described scanning assistance module is sent to described terminal by the configuration parameter of at least one wireless local network connecting point in described Candidate Set;

22. according to claim 12 to the described network insertion auxiliary system of any one in 17, it is characterized in that, described terminal also comprises:

The parameter judge module, for when carrying out described scan operation, judge whether the state parameter of the beacon frame of the wireless local network connecting point transmission that scans appointment meets default alternative condition;

Wherein, if meet, described terminal stops described scan operation, and directly the wireless local network connecting point of described appointment is carried out to access operation.