CN106488511A - A kind of method of flow unloading, base station and wlan device - Google Patents
A kind of method of flow unloading, base station and wlan device Download PDFInfo
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- CN106488511A CN106488511A CN201610982290.3A CN201610982290A CN106488511A CN 106488511 A CN106488511 A CN 106488511A CN 201610982290 A CN201610982290 A CN 201610982290A CN 106488511 A CN106488511 A CN 106488511A
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- Prior art keywords
- base station
- wlan device
- wlan
- ran data
- data traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
Abstract
The invention provides a kind of method of flow unloading, base station and wlan device.On the one hand, methods described is applied to base station and wireless access network RAN data traffic can be unloaded under the scene of WLAN wlan device, wherein, described base station and described wlan device are non-co- site, the internet connection protocols ipsec tunnel for unloading RAN data traffic is established, methods described includes between described base station and described wlan device：Described base station determines the Deta bearer being unloaded to described wlan device；Described base station by described ipsec tunnel, the described RAN data traffic in described Deta bearer is unloaded in described wlan device, so that described RAN data traffic is sent to user equipment by described wlan device.The present invention can be reduced the complexity of user equipment, and, because base station is the ipsec tunnel set up with wlan device, the ipsec tunnel hence setting up is relatively fewer, reduce the impact to base station operation performance, and the IP address of base station need not be sent to user equipment it is ensured that the safety of base station.
Description
Technical field
The present invention relates to networking technology area, more particularly, to a kind of method of flow unloading, base station and wlan device.
Background technology
Wireless access network level polymerization and interoperability in, base station can by RAN (Radio Access Network, wirelessly
Access network) flow is unloaded in WLAN (Wireless Local Area Networks, WLAN) equipment, then WLAN
RAN flow is being transferred to UE (User Equipment, user equipment) by equipment.In the above-described techniques, base station is from PDCP
RAN flow is unloaded to wlan device by (Packet Data Convergence Protocol, PDCP) layer
On, because wlan device carries out not having interface between the equipment of the core network of the base station of flow unloading, therefore do not need for WLAN
Equipment arranges equipment of the core network.
In the prior art, after UE is set up with wlan device and associates, between UE and base station, set up IPSec (Internet
Protocol Security, procotol safety) tunnel is used for transmitting RAN flow.
During realizing the present invention, inventor finds prior art, and at least there are the following problems：
Because the UE that each obtains RAN flow from wlan device is required for setting up ipsec tunnel with base station, increased UE's
Complexity, and when the UE setting up ipsec tunnel with base station is more, can seriously be responsive to the service behaviour of base station, and base
Station needs to notify IP (Internet Protocol, the procotol) address of itself to UE, this reduces the peace of base station
Quan Xing.
Content of the invention
The present invention provides a kind of method of flow unloading, base station and wlan device.On the one hand, described in methods described is applied to
The internet connection protocols ipsec tunnel for unloading RAN data traffic is established between base station and described wlan device, described
Base station determines the Deta bearer being unloaded to described wlan device；Described ipsec tunnel is passed through by described Deta bearer in described base station
In described RAN data traffic be unloaded in described wlan device, so that described RAN data traffic is sent by described wlan device
To user equipment.Due to being the ipsec tunnel set up between base station and wlan device in the present invention, therefore reduce user equipment
Complexity, and, due to base station be with wlan device set up ipsec tunnel, the ipsec tunnel hence setting up is relatively
Few, reduce the impact to base station operation performance, and the IP address of base station need not be sent to user equipment it is ensured that base station
Safety.
In a first aspect, the invention provides a kind of method of flow unloading, methods described is applied to base station and can wirelessly be connect
Networking RAN data traffic is unloaded under the scene of WLAN wlan device, and wherein, described base station and described wlan device are
Non-co- site, establishes the internet connection protocols for unloading RAN data traffic between described base station and described wlan device
Ipsec tunnel, methods described includes：
Described base station determines the Deta bearer being unloaded to described wlan device；
Described RAN data traffic in described Deta bearer is unloaded to described by described base station by described ipsec tunnel
In wlan device, so that described RAN data traffic is sent to user equipment by described wlan device.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station with
The ipsec tunnel for unloading RAN data traffic is set up between described wlan device, including：
The channel quality that described base station lookups and described base station are in the mobile communications network of connection status is less than WLAN net
The user equipment of the channel quality of network；
Set up for unloading RAN number between the management module of WLAN WAP of described base station and described wlan device
Described ipsec tunnel according to flow；
The Deta bearer being unloaded to described wlan device that described base station determines is the channel matter of described mobile communications network
Amount is less than the Deta bearer of the described user equipment of channel quality of described wlan network.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station leads to
Cross described ipsec tunnel the described RAN data traffic in described Deta bearer is unloaded in described wlan device, including：
Described base station according to the channel quality value of the channel quality value of described mobile communications network and described wlan network it
Than the unloading manner determining described RAN data traffic；
Described base station according to the unloading manner of the described RAN data traffic determining, by described ipsec tunnel by described number
It is unloaded in described wlan device according to the described RAN data traffic in carrying；
Wherein, described unloading manner includes：Unloading part RAN data traffic or the whole RAN data traffics of unloading.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station root
Ratio according to the channel quality value of described mobile communications network and the channel quality value of wlan network determines described RAN data traffic
Unloading manner, including：
Described base station according to the channel quality value of the channel quality value of described mobile communications network and described wlan network it
Ratio is less than threshold value, determines that the unloading manner of described RAN data traffic is the whole RAN data traffics of described unloading.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station root
Ratio according to the channel quality value of described mobile communications network and the channel quality value of described wlan network is no less than described threshold value,
Determine that the unloading manner of described RAN data traffic unloads part RAN data traffic for described.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station is true
Surely it is unloaded to the Deta bearer of described wlan device, including：
Described base station obtains the general packet wireless service tunnel protocol GTP-U data of the user level in Deta bearer；
Described base station parses to described GTP-U data, is identified with the carrying obtaining user equipment；
According to the described mark that carries, described base station determines whether described Deta bearer is the number being unloaded to described wlan device
According to carrying.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station with
At least one described ipsec tunnel is set up between described wlan device；
When establishing a described ipsec tunnel between described base station and described wlan device, institute is passed through in described base station
State ipsec tunnel the described RAN data traffic in described Deta bearer is unloaded in described wlan device, including：
Different transmission control protocol TCP ports or user data message in described ipsec tunnel are passed through in described base station
Described RAN data traffic in different described Deta bearers is unloaded in described wlan device Protocol UDP port；
When establishing multiple described ipsec tunnel between described base station and described wlan device, institute is passed through in described base station
State ipsec tunnel the described RAN data traffic in described Deta bearer is unloaded in described wlan device, including：
Described RAN data traffic in different described Deta bearers is unloaded by described base station by different ipsec tunnels
To in described wlan device.
Second aspect, a kind of base station, wireless access network RAN data traffic can be unloaded to WLAN by described base station
Wlan device, wherein, described base station and described wlan device are non-co- site, set up between described base station and described wlan device
For unloading the internet connection protocols ipsec tunnel of RAN data traffic, described base station includes：
Transmitter, receptor, memorizer, and the processor coupling with described memorizer, described transmitter, receptor,
Memorizer and processor are communicated by bus system；
Described memory storage software program；
Described processor pass through run described software program for：
Determine the Deta bearer being unloaded to described wlan device；
Described RAN data traffic in described Deta bearer is unloaded to by described wlan device by described ipsec tunnel
In, so that described RAN data traffic is sent to user equipment by described wlan device.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described processor
It is additionally operable to：
The channel quality searching the mobile communications network being in connection status with described base station is less than the channel of wlan network
The user equipment of quality；
Set up for unloading RAN data traffic and the management module of WLAN WAP of described wlan device between
Described ipsec tunnel；
Wherein it is determined that the Deta bearer being unloaded to described wlan device be described mobile communications network channel quality low
Deta bearer in the described user equipment of the channel quality of described wlan network.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described processor
It is additionally operable to：
The ratio of the channel quality value of the channel quality value according to described mobile communications network and described wlan network determines institute
State the unloading manner of RAN data traffic；
According to the unloading manner of the described RAN data traffic determining, by described ipsec tunnel by described Deta bearer
Described RAN data traffic be unloaded in described wlan device；
Wherein, described unloading manner includes：Unloading part RAN data traffic or the whole RAN data traffics of unloading.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described processor
It is additionally operable to：
The ratio of the channel quality value of the channel quality value according to described mobile communications network and described wlan network is less than
Threshold value, determines that the unloading manner of described RAN data traffic is the whole RAN data traffics of described unloading.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described processor
It is additionally operable to：
The ratio of the channel quality value of the channel quality value according to described mobile communications network and described wlan network is not little
In described threshold value, determine that the unloading manner of described RAN data traffic is described unloading part RAN data traffic.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described processor
It is additionally operable to：
Obtain the general packet wireless service tunnel protocol GTP-U data of the user level in Deta bearer；
Described GTP-U data is parsed, is identified with the carrying obtaining user equipment；
Judge whether described Deta bearer is the Deta bearer being unloaded to described wlan device according to the described mark that carries；
If it is, determining that described Deta bearer is the Deta bearer being unloaded to wlan device.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station with
At least one described ipsec tunnel is set up between described wlan device；
Described processor is additionally operable to：
When establishing a described ipsec tunnel between described base station and described wlan device, by described IPSec tunnel
Different transmission control protocol TCP port in road or user datagram protocol udp port are by different described Deta bearers
Described RAN data traffic be unloaded in described wlan device；
When establishing multiple described ipsec tunnel between described base station and described wlan device, described base station is passed through not
Described RAN data traffic in different described Deta bearers is unloaded in described wlan device same ipsec tunnel.
The third aspect, a kind of method of flow unloading, methods described is applied to base station can be by wireless access network RAN data flow
Amount is unloaded under the scene of WLAN wlan device, and wherein, described base station and described wlan device are non-co- site, described
The internet connection protocols ipsec tunnel for unloading RAN data traffic is established between base station and described wlan device, described
Method includes：
Described wlan device receives the RAN data traffic that described base station is unloaded by described ipsec tunnel；
The WLAN of the described wlan device that described RAN data on flows is connected to by described wlan device by user equipment is no
Line access point is sent to described user equipment；
Wherein, described RAN data traffic is that described base station determines the RAN being unloaded in the Deta bearer of described wlan device
Data traffic.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station with
The ipsec tunnel for unloading RAN data traffic set up between described wlan device be described base station find out with described
The channel quality that base station is in the mobile communications network of connection status is built less than after the user equipment of channel quality of wlan network
Vertical；
Wherein, described ipsec tunnel is built upon the management mould of described base station and the WAP of described wlan device
Between block.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, in described WLAN
The described WLAN WAP of the described wlan device that described RAN data on flows is connected to by equipment by user equipment sends
During to described user equipment, methods described also includes：
Described wlan device judges the management module of the wireless access port of described wlan device with described user equipment even
Whether the described WLAN WAP of the described wlan device being connected to is in same Layer2 switching network；
If in same Layer2 switching network, described wlan device passes through described Layer2 switching network by described RAN
Data traffic is sent to the described WLAN WAP of the described wlan device that described user equipment is connected to, so that described
The described WLAN of the described wlan device that described RAN data on flows is connected to by wlan device by described user equipment wirelessly connects
Access point is sent to described user equipment；
If not in same Layer2 switching network, described wlan device passes through L3 Switching network by described RAN number
It is sent to the described WLAN WAP of the described wlan device that described user equipment is connected to according to flow, so that described WLAN
The described WLAN WAP of the described wlan device that described RAN data on flows is connected to by equipment by described user equipment
It is sent to described user equipment.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, in described WLAN
After equipment obtains the RAN data traffic that described base station is unloaded by described ipsec tunnel, methods described also includes：
Described wlan device parses to described RAN data traffic, obtains the user equipment that described RAN data traffic is sent to
MAC address；
Described in the described wlan device that described RAN data on flows is connected to by described wlan device by user equipment
WLAN WAP is sent to described user equipment, including：
Described wlan device is according to described MAC Address determines the described wlan device that described user equipment is connected to
WLAN WAP；
Described RAN data on flows is sent out by described WLAN WAP by described wlan device according to described MAC Address
Give described user equipment.
Fourth aspect, a kind of wlan device, wireless access network RAN data traffic can be unloaded to WLAN by base station
In wlan device, wherein, described base station and described wlan device are non-co- site, build between described base station and described wlan device
Found the internet connection protocols ipsec tunnel for unloading RAN data traffic, described wlan device includes：
Transmitter, receptor, memorizer, and the processor coupling with described memorizer, described transmitter, receptor,
Memorizer and processor are communicated by bus system；
Described memory storage software program；
Described processor pass through run described software program for：
Receive the RAN data traffic that described base station is unloaded by described ipsec tunnel；
The WLAN WAP of the described wlan device that described RAN data on flows is connected to by user equipment sends
To described user equipment；
Wherein, described RAN data traffic is that described base station determines the RAN being unloaded in the Deta bearer of described wlan device
Data traffic.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described base station with
The ipsec tunnel for unloading RAN data traffic set up between described wlan device be described base station find out with described
The channel quality that base station is in the mobile communications network of connection status is built less than after the user equipment of channel quality of wlan network
Vertical；
Wherein, described ipsec tunnel is built upon the pipe of described base station and the WLAN WAP of described wlan device
Between reason module.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described processor
It is additionally operable to：
Described WLAN wireless access in the described wlan device being connected to described RAN data on flows by user equipment
When point is sent to described user equipment, judge the management module of wireless access port of described wlan device and described user equipment
Whether the described WLAN WAP of the described wlan device being connected to is in same Layer2 switching network；
If in same Layer2 switching network, by described Layer2 switching network, described RAN data traffic is sent
The described WLAN WAP of the described wlan device being connected to described user equipment, so that described sending module will be described
The described WLAN WAP of the described wlan device that RAN data on flows is connected to by described user equipment is sent to described
User equipment；
If not in same Layer2 switching network, by L3 Switching network, described RAN data traffic is sent to
The described WLAN WAP of the described wlan device that described user equipment is connected to, so that described sending module will be described
The described WLAN WAP of the described wlan device that RAN data on flows is connected to by described user equipment is sent to described
User equipment.
Aspect as above and arbitrary possible implementation, it is further provided a kind of implementation, described processor
It is additionally operable to：
After described wlan device obtains the RAN data traffic that described base station is unloaded by described ipsec tunnel, to described
RAN data traffic parses, and obtains the MAC address of the user equipment that described RAN data traffic is sent to；
Determine the described WLAN wireless access of the described wlan device that described user equipment is connected to according to described MAC Address
Point；
Described RAN data on flows is sent to by described WLAN WAP by described user according to described MAC Address
Equipment.
The present invention passes through to set up the internet connection protocols for unloading RAN data traffic between base station and wlan device
Ipsec tunnel, so that base station determines be unloaded to described number after the Deta bearer of described wlan device by described ipsec tunnel
It is unloaded in described wlan device according to the described RAN data traffic in carrying, so that described wlan device is by described RAN data flow
Amount is sent to user equipment.Due to being the ipsec tunnel set up between base station and wlan device in the present invention, therefore reduce use
The complexity of family equipment, and, because base station is the ipsec tunnel set up with wlan device, the ipsec tunnel phase hence setting up
To less, reduce the impact to base station operation performance, and the IP address of base station need not be sent to user equipment it is ensured that
The safety of base station.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are these
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is one of method flow diagram of one of embodiment of the present invention flow unloading；
Fig. 2 is the two of the method flow diagram of one of embodiment of the present invention flow unloading；
Fig. 3 is the functional block diagram of one of embodiment of the present invention base station；
Fig. 4 is one of embodiment of the present invention architecture of base station schematic diagram；
Fig. 5 is the functional block diagram of one of embodiment of the present invention wlan device；
Fig. 6 is one of embodiment of the present invention wlan device structural representation.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
In order to solve produced problem in prior art, the present invention proposes a kind of method of flow unloading, concrete such as Fig. 1
Shown, methods described is applied to the field that wireless access network RAN data traffic can be unloaded to WLAN wlan device by base station
Under scape, wherein, described base station and described wlan device are non-co- site, establish use between described base station and described wlan device
In the internet connection protocols ipsec tunnel of unloading RAN data traffic, the method comprising the steps of：
Step 101, described base station determines the Deta bearer being unloaded to described wlan device.
Specifically, for non-co- site, base station and wlan device represent that base station and wlan device are not an equipment, and
Not on one device.
The ipsec tunnel for unloading RAN data traffic is set up between described base station and described wlan device, including：
The channel quality that described base station lookups and described base station are in the mobile communications network of connection status is less than WLAN net
The user equipment of the channel quality of network；Build between the management module of WLAN WAP of described base station and described wlan device
Found the described ipsec tunnel for unloading RAN data traffic；The data being unloaded to described wlan device that described base station determines is held
Carry the data that the channel quality for described mobile communications network is less than the described user equipment of channel quality of described wlan network
Carry.
Specifically, before base station determines and sets up the ipsec tunnel for unloading RAN data traffic with wlan device, use
Family equipment is to establish with base station and wlan device to be connected respectively, and a base station or wlan device can be with multiple use
Family equipment is set up and is connected, and now directly RAN data traffic is transferred to user equipment by base station by the connection with user equipment,
But ought set up, with base station and wlan device, the channel that at least one mobile communications network occurs in the user equipment being connected simultaneously
When quality is less than the user equipment of channel quality of wlan network, represent the communication quality of the mobile communications network of this user equipment
Bad, or the communication quality of wlan device and this user equipment is preferably, in order to ensure that RAN data traffic more quickly passes
Defeated need RAN data traffic is unloaded on wlan device, then by wlan device by RAN data flow on this user equipment
Amount is transferred to this user equipment, now needs to set up the IPSec for transmitting RAN data traffic between base station and wlan device
Tunnel, simultaneously because wlan device is wirelessly to be connect by the WLAN providing for user equipment during interacting with user equipment
Access point interacts, and a user equipment is connected on wlan device by a WLAN WAP, and a WLAN is no
Line access point can be set up with multiple user equipmenies and be connected, and there are multiple WLAN WAPs in wlan device, and WLAN sets
For being managed collectively to the plurality of WLAN WAP by the management module of a WLAN WAP, therefore building
During vertical ipsec tunnel, ipsec tunnel can be set up with the management module of the WLAN WAP of wlan device in base station, then
By the management module of WLAN WAP, RAN data traffic is assigned on corresponding WLAN WAP, then by corresponding to
WLAN WAP by RAN data traffic distribute corresponding user equipment.
Can also be when setting up ipsec tunnel and set up when the RAN data traffic loads of base station are overweight, can also be
Wlan device is the load-balancing device of base station, the load of base station be higher than set up during the load of wlan device situations such as, this
Bright purpose is to unload the ipsec tunnel of RAN data traffic to set up user between base station and wlan device, therefore all
The situation setting up the described ipsec tunnel for unloading RAN data traffic belongs to protection scope of the present invention.
Because base station is not necessarily required to lead to the RAN data traffic of the user equipment being connected with base station and wlan device simultaneously
Cross ipsec tunnel to send, therefore it needs to be determined which is sent to use before RAN data traffic is unloaded to wlan device by base station
The RAN data traffic of family equipment is to need to be unloaded on wlan device, and that is, base station needs the channel quality of mobile communications network
It is unloaded on wlan device less than the RAN data traffic of the user equipment of the channel quality of wlan network, other do not need to unload
RAN data traffic to wlan device is sent to user equipment according to original mode, holds because RAN data traffic is carried on data
In load, so base station is it needs to be determined that go out the Deta bearer being unloaded to described wlan device.
Described base station determines that the Deta bearer being unloaded to described wlan device includes：
Described base station obtains the GTP-U (GeneralPacketRadioService in Deta bearer
TunnellingProtocolfortheuserplane, the general packet wireless service tunnel protocol of user level) data；Institute
State base station described GTP-U data is parsed, identified with the carrying obtaining user equipment；Described base station carries mark according to described
Know and determine whether described Deta bearer is the Deta bearer being unloaded to described wlan device.
Specifically, have recorded the use less than the channel quality of wlan network for the channel quality of mobile communications network in a base station
The mark of family equipment, base station obtain that core net sends include the Deta bearer of GTP-U data after, to each Deta bearer
In GTP-U data carry out parsing obtain carry mark, due to this carrying identify identical with the mark of the user equipment being sent to,
Therefore can determine which user equipment this carrying is destined to according to carrying mark, you can to determine according to carrying mark
Whether this carrying belongs to the Deta bearer being unloaded to described wlan device, can also obtain when parsing to GTP-U data
RAN data traffic.
Step 102, the described RAN data traffic in described Deta bearer is unloaded by described base station by described ipsec tunnel
It is downloaded in described wlan device, so that described RAN data traffic is sent to user equipment by described wlan device.
At least one described ipsec tunnel is set up between described base station and described wlan device.
When establishing a described ipsec tunnel between described base station and described wlan device, institute is passed through in described base station
State ipsec tunnel the described RAN data traffic in described Deta bearer is unloaded in described wlan device, including：
Different transmission control protocol TCP ports or user data message in described ipsec tunnel are passed through in described base station
Described RAN data traffic in different described Deta bearers is unloaded in described wlan device Protocol UDP port.
When establishing multiple described ipsec tunnel between described base station and described wlan device, institute is passed through in described base station
State ipsec tunnel the described RAN data traffic in described Deta bearer is unloaded in described wlan device, including：
Described RAN data traffic in different described Deta bearers is unloaded by described base station by different ipsec tunnels
To in described wlan device.
Specifically, an ipsec tunnel can be set up in base station, after determining the RAN data traffic of unloading, can pass through
Different TCP (Transmission Control Protocol, transmission control protocol) port in ipsec tunnel or difference
UDP (User Datagram Protocol, user datagram protocol) port distinguish different UE RAN data traffic or
The RAN data traffic distinguishing different bearer is unloaded, i.e. the RAN data of the RAN data of each user equipment or each carrying
Unloaded by different tcp ports or udp port.
Or, different ipsec tunnels can also be set up from wlan device in base station, after determining the RAN data traffic of unloading,
The RAN data traffic of the RAN data traffic or differentiation different bearer that can distinguish different UE by different ipsec tunnels is entered
Row unloading.Specifically, different IKE (Internet Key Exchange can be set up between base station and wlan device
Protocol, Internet Key Exchange) SA (Security Association, security association) or different IPSec SA.
For example, for distinguishing the RAN flow of different user devices, identical IKE SA and different set up by the user equipment being different
IPSec SA, or set up different IKE SA for different user equipmenies.For distinguishing the RAN flow of different bearer, it is
Different bearer sets up identical IKE SA and different IPSec SA, or sets up different IKE for different user equipmenies
SA.
The mark of user equipment of being stored with wlan device or RAN data traffic is carried out parse the mark obtaining user equipment
Know, the mark of user equipment includes MAC (Media Access Control, media access control) address and IP (Internet
Protocol, procotol) address, the user equipment that wlan device is sent to by the mark determination of user equipment, Ran Houtong
RAN data traffic is sent to user equipment by the wireless access port crossing user equipment connection.
When RAN data traffic is sent to user equipment by wlan device, the WLAN of wlan device wlan device also to be judged
Whether the WLAN WAP of the described wlan device that the management module of WAP and user equipment are connected to is same
In individual double layer network, if in same Layer2 switching network, RAN data traffic is sent out by wlan device by this double layer network
Give the WLAN WAP of the wlan device of user equipment connection, and then make wlan device pass through to be somebody's turn to do by RAN data traffic
WLAN WAP is sent to corresponding user equipment；If not in same Layer2 switching network, wlan device passes through
RAN data traffic is sent to the WLAN WAP of the wlan device that user equipment is connected to by L3 Switching network, and then
Make wlan device that by this WLAN WAP, RAN data traffic is sent to corresponding user equipment, lead in wlan device
When crossing the WLAN WAP that RAN data traffic is sent to the wlan device that user equipment is connected to by L3 Switching network,
Wlan device sets up the routing table being sent to relative user equipment in L3 Switching network, and wlan device will according to this routing table
RAN data traffic is sent to the wireless access port of relative user equipment via L3 Switching network.
In order to ensure the safety of RAN data transfer, can when RAN data traffic is sent to user equipment by wlan device
With the ipsec tunnel by setting up between the WLAN WAP of wlan device and user equipment, RAN data traffic is sent
To user equipment.In order to improve efficiency, the WLAN that base station can be unloaded to by the management module of the WLAN WAP of WLAN
Set up between WLAN WAP in the tcp port of equipment, udp port or IPSec and wlan device and user equipment
Ipsec tunnel creates corresponding relation, receives RAN data flow in wlan device by tcp port, udp port or ipsec tunnel
After amount, corresponding WLAN WAP is directly determined according to this corresponding relation, then according to the mark of user equipment, RAN is flowed
Amount is sent to user equipment by corresponding WLAN WAP.
Described RAN data traffic in described Deta bearer is unloaded to described by described base station by described ipsec tunnel
In wlan device, including：
Described base station according to the channel quality value of the channel quality value of described mobile communications network and described wlan network it
Than the unloading manner determining described RAN data traffic；The unloading manner of the described RAN data traffic according to determination for the described base station,
By described ipsec tunnel, the described RAN data traffic in described Deta bearer is unloaded in described wlan device；Wherein,
Described unloading manner includes：Unloading part RAN data traffic or the whole RAN data traffics of unloading.
Specifically, the ratio of the channel quality value of the channel quality value of mobile communications network and wlan network can reflect shifting
The gap of the channel quality of the channel quality of dynamic communication network and wlan network, and determine it is unloading part RAN according to this gap
Data traffic, or unload whole RAN data traffics.
Described base station is true according to the ratio of the channel quality value of described mobile communications network and the channel quality value of wlan network
The unloading manner of fixed described RAN data traffic, including：
Described base station according to the channel quality value of the channel quality value of described mobile communications network and described wlan network it
Ratio is less than threshold value, determines that the unloading manner of described RAN data traffic is the whole RAN data traffics of described unloading；Described base station
The ratio of the channel quality value of the channel quality value according to described mobile communications network and described wlan network is no less than described threshold
Value, determines that the unloading manner of described RAN data traffic is described unloading part RAN data traffic.
Specifically, when the ratio of the channel quality value of mobile communications network and the channel quality value of wlan network is larger, that is,
Less than the threshold value setting, represent that the channel quality of mobile communications network and the channel quality of wlan network differ larger, in order to protect
Card user equipment can be timely, stable receive RAN data traffic, base station needs to be unloaded to whole RAN data traffics
In wlan device, so that timely, stable for RAN data traffic is sent to user equipment by WLAN, when the letter of mobile communications network
The channel quality value of road mass value and wlan network smaller when, that is, be not less than set threshold value, represent mobile communications network
Channel quality and wlan network channel quality more close, in order to not give wlan network build-up of pressure, and ensure base station
Exercise its function, base station needs part RAN data traffic is unloaded in wlan device.
When described unloading manner is unloading part RAN data traffic, base station can be believed according to the RAN of mobile communications network
The ratio of the channel quality value of road mass value and wlan network determines the described RAN data traffic being unloaded to described wlan device, example
As：Ratio 3 when the RAN channel quality value of mobile communications network and the channel quality value of wlan network：When 7, base station is by 70%
RAN data traffic is unloaded in wlan device, certainly can also determine, according to other algorithms, the part being unloaded in wlan device
RAN data traffic.
The present invention passes through to set up the internet connection protocols for unloading RAN data traffic between base station and wlan device
Ipsec tunnel, so that base station determines be unloaded to described number after the Deta bearer of described wlan device by described ipsec tunnel
It is unloaded in described wlan device according to the described RAN data traffic in carrying, so that described wlan device is by described RAN data flow
Amount is sent to user equipment.Due to being the ipsec tunnel set up between base station and wlan device in the present invention, therefore reduce use
The complexity of family equipment, and, because base station is the ipsec tunnel set up with wlan device, the ipsec tunnel phase hence setting up
To less, reduce the impact to base station operation performance, and the IP address of base station need not be sent to user equipment it is ensured that
The safety of base station.
The invention allows for a kind of method of flow unloading, concrete as shown in Fig. 2 methods described be applied to base station can be by
Wireless access network RAN data traffic is unloaded under the scene of WLAN wlan device, wherein, described base station and described WLAN
Equipment is non-co- site, establishes and connect for the Internet unloading RAN data traffic between described base station and described wlan device
Connect agreement ipsec tunnel, the method comprising the steps of：
Step, 201, described wlan device receives the RAN data traffic that described base station is unloaded by described ipsec tunnel.
Step 202, the described wlan device that described RAN data on flows is connected to by described wlan device by user equipment
Described WLAN WAP be sent to described user equipment；Wherein, described RAN data traffic is that described base station determines unloading
RAN data traffic in the Deta bearer of described wlan device.
The ipsec tunnel for unloading RAN data traffic set up between described base station and described wlan device is described
Base station is less than the channel of wlan network in the channel quality finding out the mobile communications network being in connection status with described base station
Set up after the user equipment of quality；Wherein, described ipsec tunnel is built upon the described of described base station and described wlan device
Between the management module of WLAN WAP.
Described in the described wlan device that described RAN data on flows is connected to by described wlan device by user equipment
When WLAN WAP is sent to described user equipment, methods described also includes：
Described wlan device judges the management module of the wireless access port of described wlan device with described user equipment even
Whether the described WLAN WAP of the described wlan device being connected to is in same Layer2 switching network；If same
In individual Layer2 switching network, described RAN data traffic is sent to described by described wlan device by described Layer2 switching network
The described WLAN WAP of the described wlan device that user equipment is connected to, so that described RAN is flowed by described wlan device
The described WLAN WAP of the described wlan device that amount data is connected to by described user equipment is sent to described user
Equipment；If not in same Layer2 switching network, described wlan device passes through L3 Switching network by described RAN data flow
Amount is sent to the described WLAN WAP of the described wlan device that described user equipment is connected to, so that described wlan device
The described WLAN WAP of the described wlan device that described RAN data on flows is connected to by described user equipment sends
To described user equipment.
After described wlan device obtains the RAN data traffic that described base station is unloaded by described ipsec tunnel, described side
Method also includes：
Described wlan device parses to described RAN data traffic, obtains the user equipment that described RAN data traffic is sent to
MAC address.
Described in the described wlan device that described RAN data on flows is connected to by described wlan device by user equipment
WLAN WAP is sent to described user equipment, including：
Described wlan device is according to described MAC Address determines the described wlan device that described user equipment is connected to
WLAN WAP；Described wlan device passes through described WLAN WAP by described RAN flow according to described MAC Address
Data is activation gives described user equipment.
Methods described is described in detail above-mentioned, and this is no longer going to repeat them.
The present invention passes through to set up the internet connection protocols for unloading RAN data traffic between base station and wlan device
Ipsec tunnel, so that base station determines be unloaded to described number after the Deta bearer of described wlan device by described ipsec tunnel
It is unloaded in described wlan device according to the described RAN data traffic in carrying, so that described wlan device is by described RAN data flow
Amount is sent to user equipment.Due to being the ipsec tunnel set up between base station and wlan device in the present invention, therefore reduce use
The complexity of family equipment, and, because base station is the ipsec tunnel set up with wlan device, the ipsec tunnel phase hence setting up
To less, reduce the impact to base station operation performance, and the IP address of base station need not be sent to user equipment it is ensured that
The safety of base station.
Based on the application design same with said method, the present invention proposes a kind of base station, as shown in figure 3, described base station
Wireless access network RAN data traffic can be unloaded to WLAN wlan device, wherein, described base station and described wlan device
For non-co- site, establish between described base station and described wlan device and be connected association for the Internet unloading RAN data traffic
View ipsec tunnel, described base station includes：Determining unit 31, for determining the Deta bearer being unloaded to described wlan device；Unloading
Unit 32, sets for the described RAN data traffic in described Deta bearer being unloaded to described WLAN by described ipsec tunnel
In standby, so that described RAN data traffic is sent to user equipment by described wlan device.
On hardware is realized, unit determined above can be transmitter or transceiver, and above unloading unit can be for receiving
Machine or transceiver, and this determining unit and unloading unit can integrate composition Transmit-Receive Unit, be embodied as corresponding to hardware
Transceiver.Above control unit can in the form of hardware or software form is embedded in the processor of base station.This processor is permissible
For CPU (CPU) it is also possible to single-chip microcomputer.
Refer to Fig. 4, a kind of structural representation of its base station being provided by the embodiment of the present invention.As illustrated, this base
Stand including transmitter 41, receiver 42, memorizer 43 and the processor being connected with transmitter, receiver and memorizer respectively
44.
Wherein, store batch processing code in memorizer, and processor be used for calling the program code of storage in memorizer,
For executing following operation：
Determine the Deta bearer being unloaded to described wlan device；By described ipsec tunnel by described Deta bearer
Described RAN data traffic is unloaded in described wlan device, so that described RAN data traffic is sent to use by described wlan device
Family equipment.
Described processor is additionally operable to：
The channel quality searching the mobile communications network being in connection status with described base station is less than the channel of wlan network
The user equipment of quality；Set up for unloading RAN number and the management module of WLAN WAP of described wlan device between
Described ipsec tunnel according to flow；Wherein it is determined that be unloaded to described wlan device Deta bearer be described mobile radio communication
The channel quality of network is less than the Deta bearer of the described user equipment of channel quality of described wlan network.
Described processor is additionally operable to：
The ratio of the channel quality value of the channel quality value according to described mobile communications network and described wlan network determines institute
State the unloading manner of RAN data traffic；According to the unloading manner of the described RAN data traffic determining, by described ipsec tunnel
Described RAN data traffic in described Deta bearer is unloaded in described wlan device；Wherein, described unloading manner includes：
Unloading part RAN data traffic or the whole RAN data traffics of unloading.
Described processor is additionally operable to：
The ratio of the channel quality value of the channel quality value according to described mobile communications network and described wlan network is less than
Threshold value, determines that the unloading manner of described RAN data traffic is the whole RAN data traffics of described unloading.
Described processor is additionally operable to：
The ratio of the channel quality value of the channel quality value according to described mobile communications network and described wlan network is not little
In described threshold value, determine that the unloading manner of described RAN data traffic is described unloading part RAN data traffic.
Described processor is additionally operable to：
Obtain the general packet wireless service tunnel protocol GTP-U data of the user level in Deta bearer；To described
GTP-U data is parsed, and is identified with the carrying obtaining user equipment；Judge that described Deta bearer is according to the described mark that carries
The no Deta bearer for being unloaded to described wlan device；If it is, determining that described Deta bearer is the number being unloaded to wlan device
According to carrying.
Wherein, set up at least one described ipsec tunnel between described base station and described wlan device.
Described processor is additionally operable to：
When establishing a described ipsec tunnel between described base station and described wlan device, by described IPSec tunnel
Different transmission control protocol TCP port in road or user datagram protocol udp port are by different described Deta bearers
Described RAN data traffic be unloaded in described wlan device；Establish multiple between described base station and described wlan device
During described ipsec tunnel, described base station is by different ipsec tunnels by the described RAN data in different described Deta bearers
Flow is unloaded in described wlan device.
It should be noted that the base station shown in Fig. 3 and Fig. 4 can be used for realizing, and that above method embodiment provided is arbitrary
The method of kind, the description of specific implementation, with above method embodiment, will not be described here.
The present invention passes through to set up the internet connection protocols for unloading RAN data traffic between base station and wlan device
Ipsec tunnel, so that base station determines be unloaded to described number after the Deta bearer of described wlan device by described ipsec tunnel
It is unloaded in described wlan device according to the described RAN data traffic in carrying, so that described wlan device is by described RAN data flow
Amount is sent to user equipment.Due to being the ipsec tunnel set up between base station and wlan device in the present invention, therefore reduce use
The complexity of family equipment, and, because base station is the ipsec tunnel set up with wlan device, the ipsec tunnel phase hence setting up
To less, reduce the impact to base station operation performance, and the IP address of base station need not be sent to user equipment it is ensured that
The safety of base station.
Based on the application design same with said method, the invention allows for a kind of wlan device, as shown in figure 5, base
Stand and wireless access network RAN data traffic can be unloaded in WLAN wlan device, wherein, described base station and described WLAN
Equipment is non-co- site, establishes and connect for the Internet unloading RAN data traffic between described base station and described wlan device
Connect agreement ipsec tunnel, described wlan device includes：Receiving unit 51, passes through described ipsec tunnel for receiving described base station
The RAN data traffic of unloading；Transmitting element 52, described in being connected to described RAN data on flows by user equipment
The WLAN WAP of wlan device is sent to described user equipment；Wherein, described RAN data traffic is that described base station determines
It is unloaded to the RAN data traffic in the Deta bearer of described wlan device.
On hardware is realized, above receiving unit can be transmitter or transceiver, and above transmitting element can be for receiving
Machine or transceiver, and this receiving unit and transmitting element can integrate composition Transmit-Receive Unit, be embodied as corresponding to hardware
Transceiver.Above control unit can in the form of hardware or software form is embedded in the processor of base station.This processor is permissible
For CPU (CPU) it is also possible to single-chip microcomputer.
Refer to Fig. 6, a kind of structural representation of its wlan device being provided by the embodiment of the present invention.As illustrated,
This wlan device is included transmitter 61, receiver 62, memorizer 63 and is connected with transmitter, receiver and memorizer respectively
Processor 64.
Wherein, store batch processing code in memorizer, and processor be used for calling the program code of storage in memorizer,
For executing following operation：
Receive the RAN data traffic that described base station is unloaded by described ipsec tunnel；Described RAN data on flows is passed through
The WLAN WAP of the described wlan device that user equipment is connected to is sent to described user equipment；Wherein, described RAN number
It is that described base station determines the RAN data traffic being unloaded in the Deta bearer of described wlan device according to flow.
The ipsec tunnel for unloading RAN data traffic set up between described base station and described wlan device is described
Base station is less than the channel of wlan network in the channel quality finding out the mobile communications network being in connection status with described base station
Set up after the user equipment of quality；Wherein, described ipsec tunnel is built upon the WLAN of described base station and described wlan device
Between the management module of WAP.
Described processor is additionally operable to：
Described WLAN wireless access in the described wlan device being connected to described RAN data on flows by user equipment
When point is sent to described user equipment, judge the management module of wireless access port of described wlan device and described user equipment
Whether the described WLAN WAP of the described wlan device being connected to is in same Layer2 switching network；If same
In one Layer2 switching network, described RAN data traffic is sent to even by described user equipment by described Layer2 switching network
The described WLAN WAP of the described wlan device being connected to, so that described RAN data on flows is passed through by described sending module
The described WLAN WAP of the described wlan device that described user equipment is connected to is sent to described user equipment；If no
In same Layer2 switching network, described RAN data traffic is sent to even by described user equipment by L3 Switching network
The described WLAN WAP of the described wlan device being connected to, so that described RAN data on flows is passed through by described sending module
The described WLAN WAP of the described wlan device that described user equipment is connected to is sent to described user equipment.
Described processor is additionally operable to：
After described wlan device obtains the RAN data traffic that described base station is unloaded by described ipsec tunnel, to described
RAN data traffic parses, and obtains the MAC address of the user equipment that described RAN data traffic is sent to；According to
Described MAC Address determines the described WLAN WAP of the described wlan device that described user equipment is connected to；According to described
Described RAN data on flows is sent to described user equipment by described WLAN WAP by MAC Address.
Each unit in the embodiment of the present invention is able to carry out the method shown in Fig. 2, and the embodiment of the present invention does not describe in detail
Part, refers to the related description to Fig. 2.
The present invention passes through to set up the internet connection protocols for unloading RAN data traffic between base station and wlan device
Ipsec tunnel, so that base station determines be unloaded to described number after the Deta bearer of described wlan device by described ipsec tunnel
It is unloaded in described wlan device according to the described RAN data traffic in carrying, so that described wlan device is by described RAN data flow
Amount is sent to user equipment.Due to being the ipsec tunnel set up between base station and wlan device in the present invention, therefore reduce use
The complexity of family equipment, and, because base station is the ipsec tunnel set up with wlan device, the ipsec tunnel phase hence setting up
To less, reduce the impact to base station operation performance, and the IP address of base station need not be sent to user equipment it is ensured that
The safety of base station.
One of ordinary skill in the art will appreciate that：The all or part of step realizing above-mentioned each method embodiment can be led to
Cross the related hardware of programmed instruction to complete.Aforesaid program can be stored in a computer read/write memory medium.This journey
Sequence upon execution, executes the step including above-mentioned each method embodiment；And aforesaid storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Device embodiment described above is only that schematically the unit wherein illustrating as separating component can be
Or may not be physically separate, as the part that unit shows can be or may not be physical location, that is,
May be located at a place, or can also be distributed at least two NEs.Can be selected it according to the actual needs
In the purpose to realize this embodiment scheme for some or all of module.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and to implement.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of unloading of flow method it is characterised in that methods described be applied to base station can be by wireless access network RAN data flow
Amount is unloaded under the scene of WLAN wlan device, and wherein, described base station and described wlan device are non-co- site, described
The internet connection protocols ipsec tunnel for unloading RAN data traffic is established between base station and described wlan device, described
Method includes：
Described base station determines the Deta bearer being unloaded to described wlan device；
Described RAN data traffic in described Deta bearer is unloaded to described WLAN by described ipsec tunnel by described base station
In equipment, so that described RAN data traffic is sent to user equipment by described wlan device.
2. method as claimed in claim 1 is it is characterised in that set up for unloading between described base station and described wlan device
The ipsec tunnel of RAN data traffic, including：
The channel quality that described base station lookups and described base station are in the mobile communications network of connection status is less than wlan network
The user equipment of channel quality；
Set up for unloading RAN data flow between the management module of WLAN WAP of described base station and described wlan device
The described ipsec tunnel of amount；
The Deta bearer being unloaded to described wlan device that described base station determines is that the channel quality of described mobile communications network is low
Deta bearer in the described user equipment of the channel quality of described wlan network.
3. method as claimed in claim 2 is it is characterised in that described ipsec tunnel is passed through by described Deta bearer in described base station
In described RAN data traffic be unloaded in described wlan device, including：
Described base station is true according to the ratio of the channel quality value of described mobile communications network and the channel quality value of described wlan network
The unloading manner of fixed described RAN data traffic；
Described data, according to the unloading manner of the described RAN data traffic determining, is held by described base station by described ipsec tunnel
Described RAN data traffic in load is unloaded in described wlan device；
Wherein, described unloading manner includes：Unloading part RAN data traffic or the whole RAN data traffics of unloading.
4. method as claimed in claim 3 is it is characterised in that described base station is according to the channel quality value of described mobile communications network
Determine the unloading manner of described RAN data traffic with the ratio of the channel quality value of wlan network, including：
Described base station according to the ratio of the channel quality value of described mobile communications network and the channel quality value of described wlan network is
Less than threshold value, determine that the unloading manner of described RAN data traffic is the whole RAN data traffics of described unloading.
5. a kind of base station is it is characterised in that wireless access network RAN data traffic can be unloaded to WLAN by described base station
Wlan device, wherein, described base station and described wlan device are non-co- site, set up between described base station and described wlan device
For unloading the internet connection protocols ipsec tunnel of RAN data traffic, described base station includes：
Transmitter, receptor, memorizer, and the processor coupling with described memorizer, described transmitter, receptor, storage
Device and processor are communicated by bus system；
Described memory storage software program；
Described processor pass through run described software program for：
Determine the Deta bearer being unloaded to described wlan device；
By described ipsec tunnel, the described RAN data traffic in described Deta bearer is unloaded in described wlan device, with
Make described wlan device that described RAN data traffic is sent to user equipment.
6. a kind of unloading of flow method it is characterised in that methods described be applied to base station can be by wireless access network RAN data flow
Amount is unloaded under the scene of WLAN wlan device, and wherein, described base station and described wlan device are non-co- site, described
The internet connection protocols ipsec tunnel for unloading RAN data traffic is established between base station and described wlan device, described
Method includes：
Described wlan device receives the RAN data traffic that described base station is unloaded by described ipsec tunnel；
Described RAN data on flows is connected to the WLAN wireless access of described wlan device by described wlan device by user equipment
Point is sent to described user equipment；
Wherein, described RAN data traffic is that described base station determines the RAN data being unloaded in the Deta bearer of described wlan device
Flow.
7. method as claimed in claim 6 it is characterised in that between described base station and described wlan device set up for unloading
The ipsec tunnel of RAN data traffic is that described base station is finding out the mobile communications network being in connection status with described base station
Channel quality be less than wlan network the user equipment of channel quality after set up；
Wherein, described ipsec tunnel is built upon the pipe of described base station and the described WLAN WAP of described wlan device
Between reason module.
8. method as claimed in claim 7 is it is characterised in that pass through user in described wlan device by described RAN data on flows
When the WLAN WAP of the described wlan device that equipment is connected to is sent to described user equipment, methods described also includes：
Described wlan device judges the management module of described WLAN WAP of described wlan device and described user equipment
Whether the described WLAN WAP of the described wlan device being connected to is in same Layer2 switching network；
If in same Layer2 switching network, described wlan device is by described Layer2 switching network by described RAN data
Flow is sent to the described WLAN WAP of the described wlan device that described user equipment is connected to, so that described WLAN sets
The described WLAN WAP of the standby described wlan device being connected to described RAN data on flows by described user equipment is sent out
Give described user equipment；
If not in same Layer2 switching network, described wlan device passes through L3 Switching network by described RAN data flow
Amount is sent to the described WLAN WAP of the described wlan device that described user equipment is connected to, so that described wlan device
The described WLAN WAP of the described wlan device that described RAN data on flows is connected to by described user equipment sends
To described user equipment.
9. method as claimed in claim 6 passes through described IPSec it is characterised in that obtaining described base station in described wlan device
After the RAN data traffic of tunnel unloading, methods described also includes：
Described wlan device parses to described RAN data traffic, obtains the matchmaker of the user equipment that described RAN data traffic is sent to
Body access control MAC addresses；
The described WLAN of the described wlan device that described RAN data on flows is connected to by described wlan device by user equipment is no
Line access point is sent to described user equipment, including：
Described wlan device determines the described WLAN of described wlan device that described user equipment is connected to according to described MAC Address
WAP；
Described RAN data on flows is sent to by described WLAN WAP by described wlan device according to described MAC Address
Described user equipment.
10. a kind of wlan device is it is characterised in that wireless access network RAN data traffic can be unloaded to WLAN by base station
In wlan device, wherein, described base station and described wlan device are non-co- site, build between described base station and described wlan device
Found the internet connection protocols ipsec tunnel for unloading RAN data traffic, described wlan device includes：
Transmitter, receptor, memorizer, and the processor coupling with described memorizer, described transmitter, receptor, storage
Device and processor are communicated by bus system；
Described memory storage software program；
Described processor pass through run described software program for：
Receive the RAN data traffic that described base station is unloaded by described ipsec tunnel；
The WLAN WAP of the described wlan device that described RAN data on flows is connected to by user equipment is sent to institute
State user equipment；
Wherein, described RAN data traffic is that described base station determines the RAN data being unloaded in the Deta bearer of described wlan device
Flow.
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| WO2016165554A1 (en) * | 2015-04-13 | 2016-10-20 | 电信科学技术研究院 | Data offloading path establishing method and device |
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