WO2016165554A1 - 一种数据分流的路径建立方法及装置 - Google Patents

一种数据分流的路径建立方法及装置 Download PDF

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Publication number
WO2016165554A1
WO2016165554A1 PCT/CN2016/077673 CN2016077673W WO2016165554A1 WO 2016165554 A1 WO2016165554 A1 WO 2016165554A1 CN 2016077673 W CN2016077673 W CN 2016077673W WO 2016165554 A1 WO2016165554 A1 WO 2016165554A1
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Prior art keywords
wlan network
base station
request message
mac address
path
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PCT/CN2016/077673
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English (en)
French (fr)
Inventor
侯云静
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电信科学技术研究院
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Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to KR1020177032762A priority Critical patent/KR20170136617A/ko
Priority to EP16779529.3A priority patent/EP3285539A4/en
Priority to US15/566,219 priority patent/US10285090B2/en
Priority to KR1020197025106A priority patent/KR102070717B1/ko
Priority to JP2017553964A priority patent/JP6567686B2/ja
Publication of WO2016165554A1 publication Critical patent/WO2016165554A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0215Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/66Layer 2 routing, e.g. in Ethernet based MAN's
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/74Address processing for routing
    • H04L45/745Address table lookup; Address filtering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/34Modification of an existing route
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • H04W76/16Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/24Multipath
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/24Multipath
    • H04L45/245Link aggregation, e.g. trunking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of wireless technologies, and in particular, to a method and an apparatus for establishing a path for data offloading.
  • dual connectivity means that the terminal is simultaneously connected to two cells, wherein the macro cell is used to implement the functions of the control plane, including connection management and mobility management.
  • the dual connectivity technique refers to an enhancement technique in which a User Equipment (UE) uses radio resources from two network nodes that are connected to each other using a non-ideal link.
  • UE User Equipment
  • each eNB Evolved Base Station
  • These roles do not need to be associated with the power level of the eNB and can play different roles for different UEs.
  • the UE completes user plane data transmission by merging the radio resources of the two eNBs, and the control plane data transmission remains on the macro eNB.
  • the existing mechanism only supports splitting between the primary base station (MeNB) and the secondary base station (Secondary eNB, SeNB), when the Third Generation Partnership Project (3GPP) access network is congested
  • the wireless local area network (WLAN) access network may be idle.
  • the protocol stack used when the eNB transmits user data is shown in FIG. 2, and the protocol stack used when the WLAN access network transmits user data is shown in FIG. 3.
  • the eNB and the WLAN access network use the wireless access.
  • the technology is different and the protocol stack is different, so the offloading technology used between eNBs cannot be directly used between the eNB and the WLAN access network.
  • the existing mechanism is not suitable for offloading between the eNB and the WLAN network. Therefore, when the 3GPP access network is congested, the eNB cannot utilize the capacity of the WLAN network to implement offloading part of the traffic from the 3GPP access network to the WLAN network.
  • a method and a device for establishing a data offload path are provided to solve the problem that when the 3GPP access network is congested, the eNB cannot implement partial traffic splitting to the WLAN network.
  • a method for establishing a path for data offloading is provided in the embodiment of the present invention, and is applied to a base station side, including:
  • the base station After the base station determines that a user equipment UE is connected to the designated WLAN network, the base station sends a request message to the WLAN network, where the request message carries at least the first MAC address of the user equipment UE;
  • the base station sends a path switch confirmation message to the UE, and notifies the UE that the path that is offloaded from the base station to the WLAN network is successfully established.
  • the WLAN access network may be in an idle state, so the part of the air interface of the WLAN access network that should be transmitted through the 3GPP access network may be utilized.
  • the traffic is offloaded to the WLAN access network, which not only provides a better service experience for the user, but also improves the wireless utilization of the 3GPP access network, increases the throughput of the 3GPP access network, and improves the data transmission rate. Further optimize system performance.
  • the path identifier is a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint identifier TEID allocated by the WLAN network for the request message.
  • the method before the determining, by the base station, that the UE is connected to the specified WLAN network, the method further includes:
  • the base station When the base station determines that the current network access load is greater than a preset threshold, the base station sends a offload notification message to the UE, where the offload notification message is used to offload the identifier of the specified WLAN network and the radio bearer to the WLAN network. Notifying the UE;
  • the base station receives the offload acknowledgement message fed back by the UE, and the offload acknowledgement message is used to confirm that the UE accepts a offloading operation to the designated WLAN network.
  • the base station receives a radio resource control RRC message sent by the UE, where the RRC message carries a first MAC address of the UE;
  • the base station saves the first MAC address of the UE.
  • the base station sends a request message to the WLAN network, where the request message carries at least the first MAC address of the UE, and specifically includes:
  • the base station If the base station communicates with the WLAN network in a layer 2 frame manner, the base station sends a path establishment request message to the WLAN network, where the path establishment request message is used to request the WLAN network to establish the path for the path.
  • the request message allocates a related path address parameter, where the path establishment request message carries the first MAC address of the UE;
  • the base station sends a create bearer request message to the WLAN network, where the create bearer request message is used to request the WLAN network to create a bearer request for the bearer.
  • the message assigns a related path address parameter, where the create bearer request message carries the first MAC address of the UE and the base station allocates the user plane
  • the two user plane tunnel endpoint identifies the TEID.
  • the base station receives the reply message that is sent by the WLAN network for the request message, where the reply message carries at least the path identifier that is allocated by the WLAN network to the request message, and specifically includes:
  • the base station If the base station communicates with the WLAN network in a layer 2 frame manner, the base station receives a path setup reply message returned by the WLAN network for the path establishment request message, where the path establishment reply message carries Determining, by the WLAN network, a second MAC address allocated for the path establishment request message; or
  • the base station If the base station communicates with the WLAN network by means of a GTP tunnel, the base station receives a create bearer reply message returned by the WLAN network for the create bearer request message, where the create bearer reply message carries at least Determining, by the WLAN network, a first bearer identifier and a first user plane TEID allocated for the create bearer request message.
  • the method further includes:
  • the base station performs, by using the path identifier, the first part of data interaction with the UE by using the WLAN network, where the first part of data is data that the base station needs to interact with the UE through the WLAN network.
  • the base station performs, according to the path identifier, the first part of data interaction with the UE by using the WLAN network, where the first part of data is data that the base station needs to interact with the UE by using the WLAN network, Specifically include:
  • the base station if the base station communicates with the WLAN network by using a layer 2 frame, the base station establishes at least one offload between the base station and the WLAN network based on the path establishment request message and the path setup reply message. path;
  • the first uplink data packet is sent by using the S1 bearer, and receiving, by the S1 bearer corresponding to the at least one offload path.
  • the downlink data is encapsulated into a downlink data packet of the MAC frame, and the downlink data packet is forwarded to the WLAN network, and the downlink data packet is re-framed into the first downlink by using the WLAN network.
  • the first downlink data packet Sending to the UE, completing the interaction of the first part of data; wherein, when the uplink data packet is transmitted between the UE and the WLAN network, the source MAC address of the uplink data packet is encapsulated as the first MAC address, The destination MAC address is the initial MAC address of the WLAN network, and when the uplink data packet is transmitted between the WLAN network and the base station, the source MAC address encapsulating the uplink data packet is the second MAC address, and the destination MAC address.
  • the address is the MAC address of the base station
  • the source MAC address of the downlink data packet is the MAC address of the base station
  • the destination MAC address is the second MAC address
  • the source MAC address of the first downlink data packet is the second MAC address
  • the destination MAC address is the first MAC address.
  • the base station performs, according to the path identifier, the first part of data interaction with the UE by using the WLAN network, where the first part of data is data that the base station needs to interact with the UE by using the WLAN network, Specifically include:
  • the base station If the base station communicates with the WLAN network by means of a GTP tunnel, the base station establishes a new bearer between the base station and the WLAN network based on the create bearer request message and the create bearer reply message;
  • the base station receives the uplink data packet forwarded by the WLAN network by using the new bearer, and forwards the uplink data packet to the S1 bearer corresponding to the newly created bearer after receiving the uplink data packet from the new bearer. Transmitting, and receiving downlink data from the S1 bearer corresponding to the at least one radio bearer identifier, forwarding the downlink data to a new bearer corresponding to the S1 bearer, and encapsulating the downlink data into a MAC frame by using the WLAN network
  • the second downlink data packet is sent to the UE to complete the interaction of the second part of data; wherein, when the uplink data packet is transmitted between the UE and the WLAN network, the source MAC address of the uplink data packet is encapsulated The address is the first MAC address, the destination MAC address is the initial MAC address of the WLAN network, the source MAC address of the second downlink data packet is the MAC address of the WLAN network, and the destination MAC address is the first MAC address.
  • a path establishment method for data offloading is provided, which is applied to a wireless local area network, and includes:
  • the WLAN network of the wireless local area network receives a request message sent by the base station, where the request message is at least Carrying the first MAC address of the user equipment UE;
  • the WLAN network allocates a path identifier to the request message, and sends a reply message to the base station, and notifies the base station of the related path establishment information, where the reply message carries the path identifier allocated by the WLAN network.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the path identifier is a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint identifier TEID allocated by the WLAN network for the request message.
  • the WLAN network allocates a path identifier to the request message, and specifically includes:
  • the gateway in the WLAN network allocates a path identifier to the request message
  • An access point AP in the WLAN network allocates a path identifier to the request message
  • the path identifier is used to identify a first part of the data transmission path between the WLAN network and the base station that needs to be offloaded.
  • the WLAN network receives the request message sent by the base station, where the request message carries at least the first MAC address of the user equipment UE, and specifically includes:
  • the WLAN network communicates with the base station by using a layer 2 frame
  • the WLAN network receives a path establishment request message sent by the base station, where the path establishment request message is used to request the WLAN network to be used for the path. Establishing a request message to allocate a related path address parameter, where the path establishment request message carries a first MAC address of the UE;
  • the WLAN network receives a create bearer request message sent by the base station, where the create bearer request message is used to request the WLAN network to create a bearer for the The request message allocates a related path address parameter, where the create bearer request message carries the first MAC address of the UE and the base station is a user
  • the second user plane tunnel endpoint assigned by the polygon identifies the TEID.
  • the WLAN network allocates a path identifier to the request message, and sends a reply message to the base station, and notifies the base station of the related path establishment information, where the reply message carries the WLAN network allocation.
  • Path identifier including:
  • the WLAN network If the WLAN network communicates with the base station by using a layer 2 frame, the WLAN network allocates a path identifier to the path establishment request message, and sends a path establishment reply message to the base station, and the related path establishment information is used. Notifying the base station that the path establishment reply message carries a second MAC address allocated by the WLAN network for the path establishment request message; or
  • the WLAN network allocates a path identifier to the path establishment request message, and sends a create bearer reply message to the base station, and notifies the related path establishment information.
  • the base station, the created bearer reply message carries at least the first bearer identifier and the first user plane TEID allocated by the WLAN network for the create bearer request message.
  • the embodiment of the present invention provides a path-establishing device for data offloading, which is applied to a base station side, and includes:
  • a sending unit configured to send a request message to the WLAN network after the user equipment UE is connected to the specified WLAN network, where the request message carries at least the first MAC address of the user equipment UE;
  • a receiving unit configured to receive a reply message that is sent by the WLAN network for the request message, where the reply message carries at least a path identifier that is allocated by the WLAN network for the request message;
  • an acknowledgment unit configured to send a path switch confirmation message to the UE, to notify the UE that the path that is offloaded from the base station to the WLAN network is successfully established.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only Provide users with a better service experience, and Moreover, the wireless utilization rate of the 3GPP access network is improved, and the throughput of the 3GPP access network is increased, the data transmission rate is improved, and the system performance is further significantly optimized.
  • the path identifier received by the receiving unit is a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint identifier allocated by the WLAN network for the request message.
  • TEID a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint identifier allocated by the WLAN network for the request message.
  • the sending unit is further configured to:
  • the receiving unit is further configured to receive a offload acknowledgement message fed back by the UE, where the offload acknowledgement message is used to confirm that the UE accepts a offloading operation to a designated WLAN network.
  • the receiving unit is further configured to:
  • the first MAC address of the UE is saved.
  • the sending unit when sending the request message to the WLAN network, the sending unit is specifically configured to:
  • the base station communicates with the WLAN network by using a layer 2 frame, sending a path establishment request message to the WLAN network, where the path establishment request message is used to request the WLAN network to allocate a related path for the path establishment request message.
  • An address parameter, where the path establishment request message carries a first MAC address of the UE;
  • the base station communicates with the WLAN network by using a GTP tunnel, and sends a create bearer request message to the WLAN network, where the create bearer request message is used to request the WLAN network to allocate a related to the create bearer request message.
  • the path address parameter, the first bearer request message carrying the first MAC address of the UE and the second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the receiving unit when receiving the reply message returned by the WLAN network for the request message, is specifically used for:
  • the base station communicates with the WLAN network by using a GTP tunnel, and receives a create bearer reply message that is sent by the WLAN network for the create bearer request message, where the create bearer reply message carries at least the WLAN network for The first bearer identifier and the first user plane TEID of the bearer request message allocation are created.
  • a communication unit configured to perform, by using the path identifier, the first part of data interaction with the UE by using the WLAN network, after the path conversion acknowledgement message is sent to the UE, where the first part of data is required by the base station to pass the Data of the WLAN network interacting with the UE.
  • the communication unit when the first part of the data is exchanged with the UE by using the WLAN network, the communication unit is specifically configured to:
  • the WLAN network Receiving an uplink data packet forwarded by the WLAN network, and re-blocking the uplink data packet into a first uplink data packet, using an S1 bearer, and receiving downlink data from an S1 bearer corresponding to the at least one traffic distribution path.
  • the downlink data After the downlink data is encapsulated into a downlink data packet of the MAC frame, the downlink data packet is forwarded to the WLAN network, and the downlink data packet is re-framed into the first downlink data packet by using the WLAN network.
  • the source MAC address is the first MAC address
  • the destination MAC address is the initial MAC address of the WLAN network.
  • the address is the second MAC address
  • the destination MAC address is the MAC address of the base station
  • the source MAC address of the downlink data packet is the MAC address of the base station
  • the destination MAC address is the second MAC address
  • the source MAC address of the data packet is the second MAC address
  • the destination MAC address is the first MAC address.
  • the communication unit when the first part of the data is exchanged with the UE by using the WLAN network, the communication unit is specifically configured to:
  • the uplink data packet forwarded by the WLAN network, and receiving the uplink data packet from the new bearer, and forwarding the uplink data packet to an S1 bearer corresponding to the newly created bearer, where After the downlink data is received from the S1 bearer corresponding to the at least one radio bearer identifier, the downlink data is forwarded to a new bearer corresponding to the S1 bearer, and the downlink data is encapsulated into a second MAC frame by using the WLAN network.
  • the downlink data packet is sent to the UE, and the second part of the data is exchanged.
  • the source data address of the uplink data packet is encapsulated when the uplink data packet is transmitted between the UE and the WLAN network.
  • a MAC address, the destination MAC address is the initial MAC address of the WLAN network, the source MAC address of the second downlink data packet is the MAC address of the WLAN network, and the destination MAC address is the first MAC address.
  • a path establishing device for data offloading is provided, which is applied to a wireless local area network, and includes:
  • a receiving unit configured to receive a request message sent by the base station, where the request message carries at least a first MAC address of the user equipment UE;
  • a sending unit configured to allocate a path identifier to the request message, and send a reply message to the base station, and notify the base station of the related path establishment information, where the reply message carries a path identifier allocated by the WLAN network.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network can be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only can provide a better service experience for the user, but also improve the wireless utilization of the 3GPP access network.
  • the rate increases the throughput of the 3GPP access network and increases the data transmission rate, further optimizing the system performance.
  • the path identifier allocated by the sending unit is a second MAC address allocated for the request message or a first user plane tunnel endpoint identifier TEID allocated for the request message.
  • the receiving unit when receiving the request message sent by the base station, is specifically configured to:
  • the path establishment request message is used to request the WLAN network to allocate the relevant path setup request message.
  • a path address parameter where the path establishment request message carries a first MAC address of the UE;
  • the device communicates with the base station by using a GTP tunnel, and receives a create bearer request message sent by the base station, where the create bearer request message is used to request the WLAN network to allocate a related path for the create bearer request message.
  • the address parameter, the first bearer request message carries the first MAC address of the UE and the second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the sending unit is specifically configured to:
  • the path establishment reply message carries a second MAC address allocated by the WLAN network for the path establishment request message;
  • the device communicates with the base station by means of a GTP tunnel, allocates a path identifier to the path establishment request message, and sends a create bearer reply message to the base station, and notifies the base station of the related path establishment information.
  • the creating a bearer reply message carries at least the first bearer identifier and the first user plane TEID allocated by the WLAN network for the create bearer request message.
  • a network side device is provided in the embodiment of the present invention, including:
  • a processor for reading a program in the memory performing the following process:
  • the request message is sent to the WLAN network by the transceiver, where the request message carries at least the first MAC address of the user equipment UE; a reply message returned by the WLAN network for the request message, where the reply message carries at least a path identifier that is allocated by the WLAN network for the request message, and sends a path switch confirmation message to the UE by using a transceiver, to the The UE notifies that the path from the base station to the WLAN network is successfully established.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the path identifier received by the transceiver is a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint identifier TEID allocated by the WLAN network for the request message.
  • the processor before determining that the UE is connected to the designated WLAN network, the processor is further configured to:
  • the processor receives, by the transceiver, a offload acknowledgement message fed back by the UE, where the offload acknowledgement message is used to confirm that the UE accepts a offloading operation to the designated WLAN network.
  • the processor is further configured to:
  • the first MAC address of the UE is saved.
  • the processor when the transceiver sends a request message to the WLAN network, the processor is specifically configured to:
  • the path setup request message is sent to the WLAN network by using the transceiver, where the path setup request message is used to request the WLAN network to establish a request message for the path. Allocating a related path address parameter, where the path establishment request message carries a first MAC address of the UE;
  • the base station communicates with the WLAN network by means of a GTP tunnel, and sends a create bearer request message to the WLAN network by using a transceiver, where the create bearer request message is used to request the WLAN network to create a bearer request for the bearer.
  • the message assigns a related path address parameter, where the create bearer request message carries a first MAC address of the UE and a second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the processor when the transceiver receives the reply message returned by the WLAN network for the request message, the processor is specifically configured to:
  • the path setup reply message returned by the WLAN network for the path setup request message is received by the transceiver, where the path setup reply message carries the WLAN The second MAC address assigned by the network to the path establishment request message;
  • the transceiver receives the create bearer reply message returned by the WLAN network for the create bearer request message, where the create bearer reply message carries at least the WLAN The first bearer identifier and the first user plane TEID allocated by the network for the created bearer request message.
  • the processor is further configured to: after the path conversion acknowledgement message is sent by the transceiver to the UE, perform, by using the path identifier, the first part of data interaction with the UE by using the WLAN network, where the first part is The data is data that the base station needs to interact with the UE through the WLAN network.
  • the processor when the first part of the data is exchanged with the UE by using the WLAN network, the processor is specifically configured to:
  • the WLAN network Receiving an uplink data packet forwarded by the WLAN network, and re-blocking the uplink data packet into a first uplink data packet, using an S1 bearer, and receiving downlink data from an S1 bearer corresponding to the at least one traffic distribution path.
  • the downlink data After the downlink data is encapsulated into a downlink data packet of the MAC frame, the downlink data packet is forwarded to the WLAN network, and the downlink data packet is re-framed into the first downlink data packet by using the WLAN network.
  • the source MAC address is the first MAC address
  • the destination MAC address is the initial MAC address of the WLAN network.
  • the MAC address is the second MAC address
  • the destination MAC address is the MAC address of the base station
  • the source MAC address of the downlink data packet is the MAC address of the base station
  • the destination MAC address is the second MAC address, where the Source MAC address of the downlink data packet to a second MAC address, destination MAC address is the MAC address first.
  • the processor when the first part of the data is exchanged with the UE by using the WLAN network, the processor is specifically configured to:
  • the new bearer Receiving, by the new bearer, the uplink data packet forwarded by the WLAN network, and receiving the uplink data packet from the new bearer, and forwarding the uplink data packet to an S1 bearer corresponding to the newly created bearer, where After the downlink data is received from the S1 bearer corresponding to the at least one radio bearer identifier, the downlink data is forwarded to a new bearer corresponding to the S1 bearer, and the downlink data is encapsulated into a second MAC frame by using the WLAN network.
  • the source MAC address of the uplink data packet is the first MAC address
  • the destination MAC address is the initial MAC address of the WLAN network
  • the source MAC address of the second downlink data packet is the The MAC address of the WLAN network
  • the destination MAC address is the first MAC address.
  • a transceiver for receiving and transmitting data under the control of a processor.
  • a network side device is provided in the embodiment of the present invention, including:
  • the processor is configured to read a program in the memory, and execute the following process: receiving, by the transceiver, a request message sent by the base station, where the request message carries at least a first MAC address of the user equipment UE, and the request message The path identifier is allocated, and a reply message is sent to the base station by the transceiver, and the related path establishment information is notified to the base station, where the reply message carries the path identifier allocated by the WLAN network.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the path identifier allocated by the processor is a second MAC address allocated for the request message or a first user plane tunnel endpoint identifier TEID allocated for the request message.
  • the processor when receiving, by the transceiver, the request message sent by the base station, the processor is specifically configured to:
  • the network side device communicates with the base station by means of a GTP tunnel, and receives a create bearer request message sent by the base station by using a transceiver, where the create bearer request message is used to request the WLAN network to create a bearer for the Request message assignment related path address parameter, said The first bearer request message carries the first MAC address of the UE and the second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the processor is specifically configured to:
  • the network side device communicates with the base station by means of a layer 2 frame, allocates a path identifier to the path establishment request message, and sends a path establishment reply message to the base station by using a transceiver, and the related path establishment information is used. Notifying the base station that the path establishment reply message carries a second MAC address allocated by the WLAN network for the path establishment request message; or
  • the network side device communicates with the base station by means of a GTP tunnel, allocates a path identifier to the path establishment request message, and sends a create bearer reply message to the base station by using the transceiver, and notifies the related path establishment information.
  • the base station, the created bearer reply message carries at least the first bearer identifier and the first user plane TEID allocated by the WLAN network for the create bearer request message.
  • a transceiver for receiving and transmitting data under the control of a processor.
  • Figure 1 is a schematic diagram of a conventional dual connection
  • 2 is a schematic diagram of a protocol stack used when an eNB transmits user data
  • FIG. 3 is a schematic diagram of a protocol stack used when a WLAN access network transmits user data
  • FIG. 4 is a schematic diagram of a service gateway directly offloading to a primary cell and a secondary cell;
  • FIG. 5A and FIG. 5B are schematic diagrams of the primary cell splitting to the secondary cell
  • FIG. 6 is a schematic diagram of a logical structure of a WLAN access network
  • FIG. 7 is a schematic flowchart of a path establishment method according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic flowchart of determining an offload by an eNB according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of a path establishment method according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic flowchart of a path establishment method according to Embodiment 3 of the present invention.
  • FIG. 11 is a schematic flowchart of a path establishment method according to Embodiment 4 of the present invention.
  • FIG. 12 is a schematic structural diagram of a path establishing apparatus according to Embodiment 5 of the present invention.
  • FIG. 13 is a schematic structural diagram of a path establishment apparatus according to Embodiment 6 of the present invention.
  • FIG. 14 is a schematic structural diagram of a path establishment apparatus according to Embodiment 7 of the present invention.
  • FIG. 15 is a schematic structural diagram of a path establishing apparatus according to Embodiment 8 of the present invention.
  • the dual connectivity technology means that the UE establishes a connection with two eNBs at the same time, and simultaneously uses two radio resources of the eNB to transmit user data.
  • the roles of the two eNBs are different, one is the MeNB, and the other is the SeNB, where the MeNB controls the offloading operation.
  • a shunting method is a gateway (Serving GW, S-GW) in the core network.
  • S-GW directly offloads to the MeNB and the SeNB, and the MeNB determines which traffic the Serving GW sends to the UE through the SeNB.
  • FIG. Another type of traffic distribution is a MeNB.
  • the S-GW sends all traffic of the user to the MeNB (that is, the S-GW does not perform offloading).
  • the MeNB sends part of the traffic of the user to the MeNB.
  • UE A schematic diagram of such a split mode is shown in Figure 5A.
  • the method for the eNB to directly offload to the WLAN is the same as that of the MeNB. Therefore, the method for offloading the MeNB to the SeNB is described in detail, and the process of offloading the MeNB to the SeNB is implemented. As shown in Figure 5B.
  • Step 1 The MeNB decides to select one SeNB for a certain UE, and the MeNB initiates a SeNB Addition Reuqest message to the SeNB, requesting the SeNB to perform the upcoming handover.
  • the Evolved Radio Access Bearer (E-RAB) allocates air interface resources, and indicates E-RAB attribute information (E-RAB parameters, TNL and other information), UE capability information and other parameters.
  • the MeNB also includes the configuration of the primary cell group (MCG) and the UE capability information in the secondary cell group configuration information element (SCG-ConfigInfoIE), and the MeNB also provides the secondary cell group (SCG) cell. (s) The latest measurement result, the SeNB can reject the request.
  • MCG primary cell group
  • SCG-ConfigInfoIE secondary cell group configuration information element
  • Step 2 If the radio resource management (RRM) entity of the SeNB decides to accept the resource allocation request, the SeNB allocates the corresponding radio resource and the transmission network resource.
  • RRM radio resource management
  • Step 3 If the MeNB approves the new configuration of the SeNB, the RRC Connection Reconfiguration process will be triggered, and the UE starts to apply the new configuration.
  • Step 4 After completing the reconfiguration, the UE sends an RRC Connection Reconfiguration Complete message. If the UE fails to comply with the configuration, a reconfiguration failure process will be performed.
  • Step 5 The MeNB notifies the SeNB that the UE successfully completes the reconfiguration process.
  • Step 6 The UE initiates a random access procedure to the SeNB. Step4 and Step6 do not have a strict order relationship.
  • the embodiment of the present invention mainly focuses on the method for the eNB to directly offload to the WLAN.
  • the logical structure of the WLAN access network includes an access point, a gateway, an authentication device, and the like.
  • a trusted WLAN access network TWAN
  • TWAN trusted WLAN access network
  • the logical structure of the WLAN access network is described.
  • all modules in the logical architecture may be implemented in the same physical entity, or may be in different physical entities. achieve.
  • it is not restricted which logic module in the WLAN network is offloaded by the eNB. Whether the WLAN network accessing the operator's core network is trusted depends on the operator's settings.
  • the architecture in Figure 6 includes the following logical entities:
  • a WLAN access network (WLAN AN) consists of one or more WLAN access points (APs) that terminate the WLAN IEEE 802.11 link of the UE.
  • the Trusted WLAN Access Gateway (TWAG) is responsible for forwarding the data of the UE to the core network of the operator, where:
  • the TWAN provides the Evolved Packet Core (EPC) access to the UE using the Transparent Single-Connection mode (TSCM) or the Single-Connection mode (SCM), the TWAG is in the UE. - Forwarding packets between the TWAG point-to-point link and the UE's S2a tunnel.
  • EPC Evolved Packet Core
  • the TWAG is in a UE-TWAG point-to-point link associated with a specific Packet Data Network (PDN) connection and User plane data is forwarded between related S2a tunnels.
  • PDN Packet Data Network
  • the TWAN uses the MCM to provide EPC access to the UE
  • the WLAN Control Protocol (WLCP) signaling is used between the UE and the TWAG.
  • the Trusted WLAN AAA Proxy (TWAP) is responsible for authenticating the UE, verifying and authorizing the WLAN Access Network (WLAN AN) and the 3rd Generation Partnership Project (3GPP). Transfer AAA information between the Accounting, Authorization, Accounting, AAA server or the 3GPP AAA Proxy.
  • the first embodiment of the present invention provides a path establishment method for the eNB to directly offload to the WLAN, which is applied to the base station side, and the specific process is as follows:
  • Step 700 The base station determines that a UE is connected to the specified WLAN network, and sends a request message to the WLAN network.
  • the request message carries at least the first Media Access Control (MAC) address of the user equipment UE.
  • MAC Media Access Control
  • the base station receives a Radio Resource Control (RRC) message sent by the UE, where the RRC message carries the first MAC address of the UE; and then the base station receives the first MAC address of the UE. Save it.
  • RRC Radio Resource Control
  • the UE may send the MAC address to the eNB by carrying its own MAC address in the RRC connection reconfiguration complete message (refer to 3GPP TS 36.331 for details).
  • the eNB stores the information locally.
  • the MAC address is the initial MAC address of the UE, that is, the device is shipped from the factory. MAC address.
  • the base station determines that the current network access load is greater than a preset threshold before the UE is connected to the designated WLAN network, and sends a offload notification message to the UE, where the offload notification message is used to identify the designated WLAN network and The radio bearer identifier that needs to be offloaded to the WLAN network is notified to the UE; the base station receives the offload acknowledgement message fed back by the UE, and the offload acknowledgement message is used to confirm that the UE accepts the offloading operation to the designated WLAN network.
  • the eNB determines the offloading, and triggers the offloading operation by using the following process, as shown in FIG. 8. After the eNB determines the offload, it also needs to determine whether the UE accepts the connection to the designated WLAN network, and determines that the eNB triggers the following process when accepting.
  • Step 1 The eNB determines the offloading, and sends a offloading notification message to the UE, where the offloading notification message parameter is an identifier of the radio bearer to be offloaded and an identifier of the designated WLAN network, where the radio bearer identifier may include multiple.
  • Step 2 The UE sends a offload acknowledgement message to the eNB. After receiving the offload acknowledgement message, the eNB initiates a path transfer procedure.
  • the UE receives the offloading notification message sent by the eNB, if the current UE accepts the offloading operation, it further determines whether it is connected to the designated WLAN network, and determines whether it is currently connected to the designated WLAN network, and if yes, sends the information to the eNB. The flow is confirmed by the acknowledgment message; otherwise, after the connection request with the designated WLAN network is initiated, the offload acknowledgement message is sent to the eNB.
  • the base station sends a request message to the WLAN network, which specifically includes the following two situations:
  • the first scenario is: if the base station communicates with the WLAN network in a layer 2 frame manner, the base station sends a path establishment request message to the WLAN network, where the path establishment request message is used to request the WLAN network to allocate the request message for the path.
  • a path identifier parameter, where the path establishment request message carries the first MAC address of the UE.
  • the second case is: if the base station communicates with the WLAN network through a GPRS Tunneling Protocol (GTP) tunnel, the base station sends a create bearer request message to the WLAN network, where the create bearer request message is used to request the WLAN.
  • GTP GPRS Tunneling Protocol
  • the bearer request message is configured to allocate a related path address parameter, where the create bearer request message carries the first MAC address of the UE and the second user plane tunnel end identifier (TEID) allocated by the base station to the user plane.
  • TEID tunnel end identifier
  • Step 701 The base station receives a reply message returned by the WLAN network for the request message, where the reply message carries at least the path identifier allocated by the WLAN network for the request message.
  • the path identifier may be a second MAC address allocated by the WLAN network for the request message, or may be a first user plane TEID allocated by the WLAN network for the request message.
  • the base station receives the reply message that is sent by the WLAN network for the request message, where the reply message carries at least the path identifier that is allocated by the WLAN network for the request message, and specifically includes the following two situations:
  • the first scenario is: if the base station communicates with the WLAN network in a layer 2 frame manner, the base station receives a path setup reply message returned by the WLAN network for the path setup request message, where the path setup reply message carries the WLAN network. A second MAC address assigned to the path establishment request message.
  • the second case is: if the base station communicates with the WLAN network through the GTP tunnel, the base station receives the create bearer reply message returned by the WLAN network for the create bearer request message, where the create bearer reply message carries at least the WLAN network.
  • the first bearer identifier and the first user plane TEID allocated for the create bearer request message are allocated for the create bearer request message.
  • Step 702 The base station sends a path switch message to the UE, and notifies the UE that the path that is offloaded from the base station to the WLAN network is successfully established.
  • the base station After the base station sends the path switch confirmation message to the UE, the base station performs the first part of data interaction with the UE through the WLAN network based on the path identifier, where the first part of data is data that the base station needs to interact with the UE through the WLAN network.
  • the base station performs the interaction of the first part of the data with the UE by using the WLAN network based on the path identifier, and specifically includes the following two situations:
  • the first scenario is: if the base station communicates with the WLAN network by means of a layer 2 frame, the base station bases the request message and the path establishment reply message on the base station and the WLAN network. Establishing at least one split path between;
  • the first uplink data packet is sent by using the S1 bearer, and after receiving the downlink data from the S1 bearer corresponding to the at least one traffic distribution path, Encapsulating the downlink data into a downlink data packet of the MAC frame, forwarding the downlink data packet to the WLAN network, and re-sealing the downlink data packet into the first downlink data packet by using the WLAN network, The data packet is sent to the UE, and the interaction of the first part of the data is completed.
  • the source MAC address of the uplink data packet is encapsulated into the first MAC address, and the destination MAC address.
  • the address is the initial MAC address of the WLAN network.
  • the source MAC address encapsulating the uplink data packet is the second MAC address
  • the destination MAC address is the MAC address of the base station.
  • the source MAC address of the downlink data packet is the MAC address of the base station
  • the destination MAC address is the second MAC address
  • the source MAC address of the first downlink data packet is the second MAC address
  • the destination MA The C address is the first MAC address.
  • the second case is: if the base station communicates with the WLAN network through the GTP tunnel, the base station establishes a new bearer between the base station and the WLAN network based on the create bearer request message and the create bearer reply message;
  • the base station Receiving, by the base station, the uplink data packet forwarded by the WLAN network, and receiving the uplink data packet from the new bearer, and forwarding the uplink data packet to the S1 bearer corresponding to the new bearer, and sending the uplink data packet from the new bearer.
  • the S1 bearer corresponding to the radio bearer identifier After receiving the downlink data, the S1 bearer corresponding to the radio bearer identifier forwards the downlink data to the new bearer corresponding to the S1 bearer, and the second downlink data packet that is encapsulated into the MAC frame by the WLAN network is sent to the UE.
  • the source MAC address encapsulating the uplink data packet is the first MAC address
  • the destination MAC address is the initial of the WLAN network
  • the MAC address, the source MAC address of the second downlink data packet is the MAC address of the WLAN network, and the destination MAC address is the first MAC address.
  • the second embodiment and the third embodiment respectively show how to implement part of the data of the base station when the base station and the WLAN network adopt different protocols.
  • the infinite LAN interacts with the UE.
  • the GTP protocol is used between the eNB and the WLAN network.
  • the process of establishing and transferring a path between an eNB and a WLAN network is as shown in FIG. 9, and the specific process is as follows:
  • Step 1 The eNB sends a create bearer request message to the designated WLAN network, where the parameters in the create bearer request message include the MAC address 1 (ie, the initial MAC address of the UE) and the TEID allocated by the eNB for the user plane.
  • the parameters in the create bearer request message include the MAC address 1 (ie, the initial MAC address of the UE) and the TEID allocated by the eNB for the user plane.
  • Step 2 The WLAN network allocates a bearer identifier and a user plane TEID, and then returns a create bearer reply message to the eNB.
  • the parameters in the create bearer reply message include a bearer identifier allocated by the WLAN network and a user plane TEID.
  • Step 3 The eNB sends a path switch confirmation message to the UE, and notifies the UE that the path that is offloaded from the eNB to the WLAN network is successfully established.
  • a GTP tunnel is established between the eNB and the WLAN network.
  • the mapping relationship between the bearers stored in the eNB is ⁇ S1 bearer, radio bearer>, where the S1 bearer field and the radio bearer field include information that can identify the corresponding bearer, for example, the S1 bearer field includes the eNB as the bearer.
  • the assigned S1-TEID and the S1-TEID assigned by the SGW, the radio bearer field storage is the radio bearer identity.
  • Uplink After receiving the data from the radio bearer, the eNB forwards it to the S1 bearer corresponding to the radio bearer.
  • Downlink After receiving the data from the S1 bearer, the eNB forwards it to the radio bearer corresponding to the S1 bearer.
  • the information stored by the eNB and the WLAN network are as follows:
  • the mapping relationship between the bearers stored by the eNB is ⁇ S1 bearer, new bearer>, where the newly created bearer is a bearer established between the eNB and the WLAN network through Step 1 and Step 2, and the information of the newly created bearer field may be the eNB as the user.
  • the information stored in the WLAN network is the mapping relationship between ⁇ new bearer and MAC address 1>.
  • the data routing method at this time is as follows:
  • the uplink and downlink data of the eNB is routed as follows:
  • Uplink After receiving the data from the new bearer, it forwards it to the S1 bearer corresponding to the newly created bearer.
  • Downstream After receiving the data from the S1 bearer, it is forwarded to the new bearer corresponding to the S1 bearer.
  • the uplink and downlink data routes of the WLAN network are as follows:
  • Uplink When receiving a packet with a source MAC address of MAC address 1, it forwards it to a new bearer corresponding to MAC address 1;
  • the internal IP packet After receiving the data from the new bearer, the internal IP packet is encapsulated into a MAC frame.
  • the source MAC address is the initial MAC address of the WLAN network
  • the destination address is the MAC address corresponding to the newly created bearer, that is, the MAC address 1.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • data is transmitted between the eNB and the WLAN network by using layer two forwarding.
  • the process of establishing and transferring a path between an eNB and a WLAN network is as shown in FIG. 10, and the specific process is as follows:
  • Step 1 The eNB sends a path establishment request message to the specified WLAN network, where the parameter in the path establishment request message includes the MAC address 1, that is, the initial MAC address of the UE.
  • Step 2 The WLAN network allocates a MAC address, that is, a MAC address 2, to the data of the bearer, and the MAC address may be a MAC address of the GW in the WLAN network, and then returns a path establishment reply message to the eNB, where the path establishes a reply message.
  • the parameters include the MAC address 2;
  • Step 3 The eNB sends a path switch confirmation message to the UE, and notifies the UE that the path that is offloaded from the eNB to the WLAN network is successfully established.
  • the mapping relationship between the bearers stored in the eNB is ⁇ S1 bearer, radio bearer>, where the S1 bearer field and the radio bearer field include information that can identify the corresponding bearer, for example, the S1 bearer field includes the eNB as the bearer.
  • the assigned S1-TEID and the S1-TEID assigned by the SGW, the radio bearer field storage is the radio bearer identity.
  • Uplink After receiving the data from the radio bearer, the eNB forwards it to the S1 bearer corresponding to the radio bearer.
  • Downlink After receiving the data from the S1 bearer, the eNB forwards it to the radio bearer corresponding to the S1 bearer.
  • the information stored by the eNB and the WLAN network are as follows:
  • the mapping relationship between the bearers stored by the eNB is ⁇ S1 bearer, information of the WLAN>, wherein the information of the WLAN may be the MAC address of the GW in the WLAN network, that is, the MAC address 2 or the service set identifier of the WLAN network (Service Set Identifier) Abbreviation, SSID).
  • the information of the WLAN may be the MAC address of the GW in the WLAN network, that is, the MAC address 2 or the service set identifier of the WLAN network (Service Set Identifier) Abbreviation, SSID).
  • the WLAN network stores the MAC address 2 in the context of the UE.
  • the data routing method at this time is as follows:
  • the uplink and downlink data of the eNB is routed as follows:
  • the eNB receives the MAC frame whose source MAC address is MAC address 2, and the eNB transmits the IP packet using the S1 bearer.
  • the UE's data is encapsulated into a MAC frame, the source MAC address is the MAC address of the eNB, and the destination MAC address is the MAC address 2.
  • the uplink and downlink data routes of the WLAN network are as follows:
  • Uplink When receiving a packet whose source MAC address is MAC address 1 and the destination MAC address is the initial MAC address of the WLAN network, the IP packet is re-enclosed, the source MAC address is MAC address 2, and the destination MAC address is the MAC address of the eNB. ;
  • the source MAC address is the MAC address of the eNB and the destination address is the MAC address of the MAC address 2
  • the IP packet is re-enclosed
  • the source MAC address is the MAC address 2
  • the destination MAC address is the MAC address 1.
  • the address is the MAC address of the UE, that is, the MAC address 1.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the fourth embodiment of the present invention provides a method for establishing a data offload path, which is applied to a wireless local area network, and may be a wireless local area network management device in a specific implementation.
  • the specific process is as follows:
  • Step 110 The WLAN network receives a request message sent by the base station, where the request message carries at least the first MAC address of the user equipment UE.
  • Step 111 The WLAN network allocates a path identifier to the request message, and sends a reply message to the base station, and notifies the base station of the related path establishment information, where the reply message carries the path identifier allocated by the WLAN network.
  • the path identifier is a second MAC address allocated by the WLAN network for the request message or a first TEID allocated by the WLAN network to the request message.
  • the WLAN network allocates a path identifier to the foregoing request message, and specifically includes the following two situations:
  • the gateway in the WLAN network assigns a path identifier to the request message.
  • the access point AP in the WLAN network allocates a path identifier to the request message.
  • the second MAC address is used to identify a first part of the data transmission path between the WLAN network and the base station that needs to be offloaded.
  • the WLAN network receives the request message sent by the base station, where the request message carries at least the first MAC address of the user equipment UE, and specifically includes the following two situations:
  • the first case is: if the WLAN network communicates with the base station by using a layer 2 frame, the WLAN network receives a path establishment request message sent by the base station, where the path establishment request message is used. And requesting the WLAN network to allocate a related path address parameter to the path establishment request message, where the path establishment request message carries the first MAC address of the UE;
  • the second case is: if the WLAN network communicates with the base station by means of a GTP tunnel, the WLAN network receives a create bearer request message sent by the base station, where the create bearer request message is used to request the WLAN network to create a bearer request for the bearer.
  • the message assigns a related path address parameter, where the create bearer request message carries the first MAC address of the UE and the second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the WLAN network allocates a path identifier to the request message, and sends a reply message to the base station, and notifies the base station of the related path establishment information, and has the following two situations:
  • the first case is: if the WLAN network communicates with the base station by using a layer 2 frame, the WLAN network allocates a path identifier for the path establishment request message, and sends a path establishment reply message to the base station to establish a related path. Notifying the base station that the path establishment reply message carries the second MAC address allocated by the WLAN network for the path establishment request message; or
  • the second case is: if the WLAN network communicates with the base station by means of a GTP tunnel, the WLAN network allocates a path identifier for the path establishment request message, and sends a create bearer reply message to the base station, and the related path establishment information is Notifying the base station that the created bearer reply message carries at least the first bearer identifier and the first user plane TEID allocated by the WLAN network for the create bearer request message.
  • the fifth embodiment of the present invention provides a path-establishing device for data offloading, which is applied to a base station side, and includes: a sending unit 120, a receiving unit 121, a confirming unit 122, and a communication unit 123, where:
  • the sending unit 120 is configured to send a request message to the WLAN network after the user equipment UE is connected to the specified WLAN network, where the request message carries at least the first MAC address of the user equipment UE;
  • the receiving unit 121 is configured to receive a reply message that is sent by the WLAN network for the request message, where the reply message carries at least a path identifier that is allocated by the WLAN network for the request message.
  • the determining unit 122 is configured to send a path switch confirmation message to the UE, to notify the UE that the path that is offloaded from the base station to the WLAN network is successfully established.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the path identifier received by the receiving unit 121 is a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint allocated by the WLAN network for the request message. Identifies the TEID.
  • the sending unit 120 is further configured to:
  • the receiving unit 121 is further configured to receive a offload acknowledgement message fed back by the UE, where the offload acknowledgement message is used to confirm that the UE accepts a offloading operation to a designated WLAN network.
  • the receiving unit 121 is further configured to:
  • the first MAC address of the UE is saved.
  • the sending unit 120 when sending the request message to the WLAN network, the sending unit 120 is specifically configured to:
  • the base station communicates with the WLAN network by using a layer 2 frame, sending a path establishment request message to the WLAN network, where the path establishment request message is used to request the WLAN network to allocate a related path for the path establishment request message.
  • An address parameter, where the path establishment request message carries a first MAC address of the UE;
  • the base station communicates with the WLAN network by using a GTP tunnel, and sends a create bearer request message to the WLAN network, where the create bearer request message is used to request the WLAN network to allocate a related to the create bearer request message.
  • the path address parameter, the first bearer request message carrying the first MAC address of the UE and the second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the receiving unit 121 when receiving the reply message that is sent by the WLAN network for the request message, is specifically configured to:
  • the base station communicates with the WLAN network by using a GTP tunnel, and receives a create bearer reply message that is sent by the WLAN network for the create bearer request message, where the create bearer reply message carries at least the WLAN network for The first bearer identifier and the first user plane TEID of the bearer request message allocation are created.
  • the communication unit 123 is configured to perform, by using the path identifier, the first part of data interaction with the UE by using the WLAN network after the path conversion acknowledgement message is sent to the UE, where the first part of data is required for the base station to pass through The data of the WLAN network interacting with the UE.
  • the communication unit 123 is specifically configured to:
  • the first uplink data packet is sent by using the S1 bearer, and receiving, by the S1 bearer corresponding to the at least one offload path.
  • the downlink data is encapsulated into a MAC frame.
  • the downlink data packet is forwarded to the WLAN network, and the downlink data packet is re-framed into a first downlink data packet by the WLAN network, and the first downlink data packet is sent.
  • the source MAC address of the uplink data packet is encapsulated as the first MAC address
  • the purpose is The MAC address is the initial MAC address of the WLAN network
  • the source MAC address of the uplink data packet is encapsulated into a second MAC address
  • the destination MAC address is For the MAC address of the base station, the source MAC address of the downlink data packet is the MAC address of the base station, the destination MAC address is the second MAC address, and the source MAC address of the first downlink data packet is the second MAC address.
  • Address, destination MAC address is the first MAC address.
  • the communication unit 123 is specifically configured to: when the first part of the data is exchanged with the UE by using the WLAN network, based on the first MAC address and the path identifier, the communication unit 123 is specifically configured to:
  • the base station If the base station communicates with the WLAN network by means of a GTP tunnel, the base station establishes a new bearer between the base station and the WLAN network based on the create bearer request message and the create bearer reply message;
  • the base station receives the uplink data packet forwarded by the WLAN network by using the new bearer, and forwards the uplink data packet to the S1 bearer corresponding to the newly created bearer after receiving the uplink data packet from the new bearer. Transmitting, and receiving downlink data from the S1 bearer corresponding to the at least one radio bearer identifier, forwarding the downlink data to a new bearer corresponding to the S1 bearer, and encapsulating the downlink data into a MAC frame by using the WLAN network
  • the second downlink data packet is sent to the UE to complete the interaction of the second part of data; wherein, when the uplink data packet is transmitted between the UE and the WLAN network, the source MAC address of the uplink data packet is encapsulated The address is the first MAC address, the destination MAC address is the initial MAC address of the WLAN network, the source MAC address of the second downlink data packet is the MAC address of the WLAN network, and the destination MAC address is the first MAC address.
  • the embodiment of the present invention provides a path-establishing device for data offloading, which is applied to a wireless local area network, and includes: a receiving unit 130 and a sending unit 131, where:
  • the receiving unit 130 is configured to receive a request message sent by the base station, where the request message carries at least a first MAC address of the user equipment UE;
  • the sending unit 131 is configured to allocate a path identifier to the request message, and send a reply message to the base station, and notify the base station of the related path establishment information, where the reply message carries the path identifier allocated by the WLAN network. .
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the path identifier allocated by the sending unit 131 is a second MAC address allocated for the request message or a first user plane tunnel endpoint identifier TEID allocated for the request message.
  • the receiving unit 130 when receiving the request message sent by the base station, the receiving unit 130 is specifically configured to:
  • the path establishment request message is used to request the WLAN network to allocate the relevant path setup request message.
  • a path address parameter where the path establishment request message carries a first MAC address of the UE;
  • the device communicates with the base station by using a GTP tunnel, and receives a create bearer request message sent by the base station, where the create bearer request message is used to request the WLAN network to allocate a related path for the create bearer request message.
  • the address parameter, the first bearer request message carries the first MAC address of the UE and the second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the sending unit 131 is specifically configured to:
  • the device communicates with the base station by using a layer 2 frame, assigning a path identifier to the path establishment request message, and sending a path establishment reply message to the base station, and the related path is
  • the path establishment information notifies the base station, where the path establishment reply message carries a second MAC address allocated by the WLAN network for the path establishment request message;
  • the device communicates with the base station by means of a GTP tunnel, allocates a path identifier to the path establishment request message, and sends a create bearer reply message to the base station, and notifies the base station of the related path establishment information.
  • the creating a bearer reply message carries at least the first bearer identifier and the first user plane TEID allocated by the WLAN network for the create bearer request message.
  • the seventh embodiment of the present invention provides a network side device, including:
  • the processor 1400 is configured to read a program in the memory 1420 and perform the following process:
  • the server After the user equipment UE is connected to the designated WLAN network, the server sends a request message to the WLAN network through the transceiver 1410, where the request message carries at least the first MAC address of the user equipment UE, and is received by the transceiver 1410.
  • the WLAN network sends a path change identifier for the request message, and the reply message carries at least the path identifier allocated by the WLAN network for the request message; and the path switch confirmation message is sent to the UE by the transceiver 1410. Notifying the UE that the path from the base station to the WLAN network is successfully established.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the path identifier received by the transceiver 1410 is a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint identifier allocated by the WLAN network for the request message.
  • TEID a second MAC address allocated by the WLAN network for the request message or a first user plane tunnel endpoint identifier allocated by the WLAN network for the request message.
  • the processor 1400 is further configured to:
  • the processor 1400 receives, by the transceiver 1410, a offload acknowledgement message fed back by the UE, where the offload acknowledgement message is used to confirm that the UE accepts a offloading operation to a designated WLAN network.
  • processor 1400 is further configured to:
  • the transceiver 1410 Receiving, by the transceiver 1410, the radio resource control RRC message sent by the UE, where the RRC message carries the first MAC address of the UE;
  • the first MAC address of the UE is saved.
  • the processor 1400 when the request message is sent to the WLAN network by the transceiver 1410, the processor 1400 is specifically configured to:
  • the path establishment request message is sent to the WLAN network by using the transceiver 1410, where the path establishment request message is used to request the WLAN network to establish a request for the path.
  • the message assigns a related path address parameter, where the path establishment request message carries the first MAC address of the UE;
  • the transceiver 1410 sends a create bearer request message to the WLAN network, where the create bearer request message is used to request the WLAN network to create a bearer for the bearer.
  • the request message allocates a related path address parameter, where the create bearer request message carries a first MAC address of the UE and a second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the processor 1400 when receiving, by the transceiver 1410, the WLAN network returns a reply message for the request message, the processor 1400 is specifically configured to:
  • a path setup reply message returned by the WLAN network for the path setup request message, where the base station and the WLAN network communicate by using a layer 2 frame, where the path setup reply message carries the a second MAC address allocated by the WLAN network for the path establishment request message;
  • the transceiver 1410 receives the created bearer reply that is returned by the WLAN network for the created bearer request message. And the first bearer identifier and the first user plane TEID allocated by the WLAN network for the create bearer request message are carried in the create bearer reply message.
  • the processor 1400 is further configured to: after the path conversion acknowledgement message is sent to the UE by the transceiver 1410, perform, by using the path identifier, the first part of data interaction with the UE by using the WLAN network,
  • the first part of data is data that the base station needs to interact with the UE through the WLAN network.
  • the processor 1400 when the first part of the data is exchanged with the UE by using the WLAN network, the processor 1400 is specifically configured to:
  • the WLAN network Receiving an uplink data packet forwarded by the WLAN network, and re-blocking the uplink data packet into a first uplink data packet, using an S1 bearer, and receiving downlink data from an S1 bearer corresponding to the at least one traffic distribution path.
  • the downlink data After the downlink data is encapsulated into a downlink data packet of the MAC frame, the downlink data packet is forwarded to the WLAN network, and the downlink data packet is re-framed into the first downlink data packet by using the WLAN network.
  • the source MAC address is the first MAC address
  • the destination MAC address is the initial MAC address of the WLAN network.
  • the MAC address is the second MAC address
  • the destination MAC address is the MAC address of the base station
  • the source MAC address of the downlink data packet is the MAC address of the base station
  • the destination MAC address is the second MAC address, where the Source MAC address of the downlink data packet to a second MAC address, destination MAC address is the MAC address first.
  • the processor 1400 is specifically configured to: when the first part of the data is exchanged with the UE by using the WLAN network, based on the first MAC address and the path identifier, the processor 1400 is specifically configured to:
  • the base station communicates with the WLAN network through a GTP tunnel, based on the creation Establishing a new bearer between the base station and the WLAN network by using a bearer request message and the create bearer reply message;
  • the uplink data packet forwarded by the WLAN network, and receiving the uplink data packet from the new bearer, and forwarding the uplink data packet to an S1 bearer corresponding to the newly created bearer, where After the downlink data is received from the S1 bearer corresponding to the at least one radio bearer identifier, the downlink data is forwarded to a new bearer corresponding to the S1 bearer, and the downlink data is encapsulated into a second MAC frame by using the WLAN network.
  • the downlink data packet is sent to the UE, and the second part of the data is exchanged.
  • the source data address of the uplink data packet is encapsulated when the uplink data packet is transmitted between the UE and the WLAN network.
  • a MAC address, the destination MAC address is the initial MAC address of the WLAN network, the source MAC address of the second downlink data packet is the MAC address of the WLAN network, and the destination MAC address is the first MAC address.
  • the transceiver 1410 is configured to receive and transmit data under the control of the processor 1400.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1400 and various circuits of memory represented by memory 1420.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1410 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 can store data used by the processor 1400 in performing operations.
  • the embodiment of the present invention provides a network side device, including:
  • the processor 1500 is configured to read the program in the memory 1520, and perform the following process: receiving, by the transceiver 1510, a request message sent by the base station, where the request message carries at least a first MAC address of the user equipment UE; The request message allocates a path identifier, and sends a reply message to the base station through the transceiver 1510, and notifies the base station of the related path establishment information, the reply The message carries the path identifier assigned by the WLAN network.
  • the WLAN access network may be in an idle state. Therefore, the air interface of the WLAN access network may be used to offload part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network, so that not only It provides users with a better service experience, and improves the wireless utilization of the 3GPP access network. At the same time, it increases the throughput of the 3GPP access network, improves the data transmission rate, and further optimizes the system performance.
  • the path identifier allocated by the processor 1500 is a second MAC address allocated for the request message or a first user plane tunnel endpoint identifier TEID allocated for the request message.
  • the processor 1500 when receiving, by the transceiver 1510, the request message sent by the base station, the processor 1500 is specifically configured to:
  • a path establishment request message sent by the base station where the network side device communicates with the base station by using a layer 2 frame, where the path establishment request message is used to request the WLAN network to
  • the path establishment request message is allocated with a related path address parameter, where the path establishment request message carries the first MAC address of the UE;
  • the transceiver 1510 receives a create bearer request message sent by the base station, where the create bearer request message is used to request the WLAN network to be created for the The bearer request message allocates a related path address parameter, where the create bearer request message carries a first MAC address of the UE and a second user plane tunnel endpoint identifier TEID allocated by the base station to the user plane.
  • the path identifier is allocated to the request message, and the 1500 is sent to the base station by the transceiver 1510, and the related path establishment information is notified to the base station, where the processor 1500 is specifically configured to:
  • the network side device communicates with the base station by using a layer 2 frame, assigning a path identifier to the path establishment request message, and sending a path establishment reply message to the base station by using the transceiver 1510, and establishing a related path. Notifying the base station that the path establishment reply message carries a second MAC address allocated by the WLAN network for the path establishment request message; or,
  • the network side device communicates with the base station by means of a GTP tunnel, allocates a path identifier to the path establishment request message, and sends a bearer reply message to the base station by using the transceiver 1510, and the related path establishment information is used.
  • the first user identifier and the first user plane TEID allocated by the WLAN network for the creation of the bearer request message are carried in the network.
  • the transceiver 1510 is configured to receive and transmit data under the control of the processor 1500.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1500 and various circuits of memory represented by memory 1520.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 1510 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 can store data used by the processor 1500 in performing operations.
  • the base station determines that after the user equipment UE is connected to the designated WLAN network, sends a request message to the WLAN network; and then the base station receives the reply message returned by the WLAN network for the request message; Sending a path switch confirmation message to the UE, and notifying the UE that the path from the base station to the WLAN network is successfully established, so that when the 3GPP access network is congested, the WLAN access network may be in an idle state, so the WLAN connection may be utilized.
  • the air interface entering the network will be part of the traffic that should be transmitted through the 3GPP access network to the WLAN access network. This not only provides a better service experience for the user, but also improves the wireless utilization rate of the 3GPP access network.
  • the throughput of the 3GPP access network improves the data transmission rate and further optimizes system performance.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention may be employed in one or more A computer program product embodied on a computer usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • a computer usable storage medium including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种数据分流的路径建立方法及装置,以解决eNB无法实现将部分流量分流至WLAN网络的问题。该方法为,基站确定一用户设备UE连接到指定的无线局域网WLAN网络后,向该WLAN网络发送请求消息;然后基站接收WLAN网络针对该请求消息返回的回复消息;基站向该UE发送路径转换确认消息,向该UE通知从该基站分流到该WLAN网络的路径建立成功,这样,能够将应该通过基站传输的部分流量分流到WLAN接入网络,提高了3GPP接入网络的无线利用率。

Description

一种数据分流的路径建立方法及装置
本申请要求在2015年4月13日提交中国专利局、申请号为201510173254.8、发明名称为“一种数据分流的路径建立方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线技术领域,尤其涉及一种数据分流的路径建立方法及装置。
背景技术
在通信领域中,为了提高热点的容量和覆盖,除了考虑密集部署宏小区外,另外一种可以考虑的方法是通过密集部署微小区来提升本地吞吐性能。但是,在这种异构网络的场景下,会存在诸多问题。例如,由于不同的基站发送功率不同,会带来功率不均衡现象;尤其是在同频部署的情况下,会对小区边缘的用户带来极大的干扰,而且,异构网络部署带来的干扰影响切换性能,在同频部署的情况下尤为严重。另一方面,网络节点的增多会使切换次数增加,带来网络信令负载开销的增大,如果不同节点之间的回传是非理想的情况,同一个终端不能被多个节点服务,因此无法达到最高的数据峰值速率和最优的资源利用。因此,可以采用双连接的方案来解决这些异构网络中存在的问题。所谓双连接也就是终端同时连接到两个小区,其中宏小区用于实现控制平面的功能,包括连接管理和移动性管理。
双连接技术是指用户设备(User Equipment,UE)使用来自两个彼此采用非理想链路连接的网络节点无线资源的增强技术。针对一个双连接UE来说,每个eNB(演进基站)将扮演不同的角色。这些角色不需要与eNB的功率等级相关联,且可以针对不同UE扮演不同角色。如图1所示,UE通过汇聚两个eNB的无线资源来完成用户面数据传输,而控制面数据传输仍然保持在宏eNB上。
但是,由于现有机制仅支持在主基站(Master eNB,MeNB)和辅基站(Secondary eNB,SeNB)之间分流,当第三代合作伙伴计划(Third Generation Partnership Project,3GPP)接入网络拥塞时,无线局域网(Wireless Local Area Network,WLAN)接入网络可能处于空闲状态。此外,eNB传输用户数据时使用的协议栈如图2所示,WLAN接入网络传输用户数据时使用的协议栈如图3所示,通过对比可知,eNB和WLAN接入网络使用的无线接入技术不同而且协议栈不同,因此无法将在eNB之间使用的分流技术直接用在eNB和WLAN接入网络之间。
由此可知,现有机制不适用于在eNB和WLAN网络之间分流。因此,当3GPP接入网络拥塞时,eNB无法利用WLAN网络的容量,实现将部分流量从3GPP接入网络分流至WLAN网络。
发明内容
本发明实施例中提供了一种数据分流的路径建立方法及装置,以解决当3GPP接入网络拥塞时,eNB无法实现将部分流量分流至WLAN网络的问题。
本发明实施例中提供了一种数据分流的路径建立方法,应用在基站侧,包括:
基站确定一用户设备UE连接到指定的无线局域网WLAN网络后,向所述WLAN网络发送请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
所述基站接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识;
所述基站向所述UE发送路径转换确认消息,向所述UE通知从所述基站分流到所述WLAN网络的路径建立成功。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分 流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,所述基站确定所述UE连接到指定的WLAN网络之前,进一步包括:
所述基站确定当前网络接入负载大于预设的阈值时,向所述UE发送分流通知消息,所述分流通知消息用于将指定的WLAN网络的标识和需要分流到所述WLAN网络的无线承载标识告知所述UE;
所述基站接收所述UE反馈的分流确认消息,所述分流确认消息用于确认所述UE接受向指定的WLAN网络的分流操作。
可选的,进一步包括:
在预处理阶段,所述基站接收所述UE发送的无线资源控制RRC消息,所述RRC消息中携带有所述UE的第一MAC地址;
所述基站将所述UE的第一MAC地址进行保存。
可选的,所述基站向所述WLAN网络发送请求消息,所述请求消息中至少携带有UE的第一MAC地址,具体包括:
若所述基站与所述WLAN网络通过层2帧的方式进行通信,所述基站向所述WLAN网络发送路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,所述基站向所述WLAN网络发送创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第 二用户面隧道端点标识TEID。
可选的,所述基站接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识,具体包括:
若所述基站与所述WLAN网络通过层2帧的方式进行通信,所述基站接收所述WLAN网络针对所述路径建立请求消息返回的路径建立回复消息,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,所述基站接收所述WLAN网络针对所述创建承载请求消息返回的创建承载回复消息,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
可选的,在所述基站向所述UE发送路径转换确认消息之后,进一步包括:
所述基站基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据。
可选的,所述基站基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据,具体包括:
若所述基站与所述WLAN网络通过层2帧的方式进行通信,所述基站基于所述路径建立请求消息和所述路径建立回复消息在所述基站与所述WLAN网络之间建立至少一个分流路径;
所述基站接收所述WLAN网络转发的上行数据包,并将所述上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从所述至少一个分流路径对应的S1承载接收到下行数据后,将所述下行数据封装成MAC帧的下行数据包,将所述下行数据包转发给所述WLAN网络,通过所述WLAN网络将所述下行数据包重新封帧成第一下行数据包,将所述第一下行数据包 发送给所述UE,完成第一部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述上行数据包在所述WLAN网络和所述基站之间传输时,封装所述上行数据包的源MAC地址为第二MAC地址,目的MAC地址为所述基站的MAC地址,所述下行数据包的源MAC地址为所述基站的MAC地址,目的MAC地址为第二MAC地址,所述第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
可选的,所述基站基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据,具体包括:
若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,所述基站基于所述创建承载请求消息和所述创建承载回复消息在所述基站与所述WLAN网络之间建立一新建承载;
所述基站利用所述新建承载接收所述WLAN网络转发的上行数据包,并从所述新建承载接收到所述上行数据包后将所述上行数据包转发至与所述新建承载对应的S1承载进行发送,以及从所述至少一个无线承载标识对应的S1承载接收到下行数据后将所述下行数据转发至与S1承载对应的新建承载,通过所述WLAN网络将所述下行数据封装成MAC帧的第二下行数据包发送给所述UE,完成第二部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述第二下行数据包的源MAC地址为所述WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
本发明实施例中提供了一种数据分流的路径建立方法,应用在无线局域网,包括:
无线局域网WLAN网络接收基站发送的请求消息,所述请求消息中至少 携带有用户设备UE的第一MAC地址;
所述WLAN网络针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,所述WLAN网络针对所述请求消息分配路径标识,具体包括:
所述WLAN网络中的网关针对所述请求消息分配路径标识;或者,
所述WLAN网络中的接入点AP针对所述请求消息分配路径标识;
其中,所述路径标识用于标识位于所述WLAN网络和所述基站之间的需要分流的第一部分数据传输路径。
可选的,所述WLAN网络接收所述基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址,具体包括:
若所述WLAN网络与所述基站通过层2帧的方式进行通信,所述WLAN网络接收所述基站发送的路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述WLAN网络与所述基站通过GTP隧道的方式进行通信,所述WLAN网络接收所述基站发送的创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户 面分配的第二用户面隧道端点标识TEID。
可选的,所述WLAN网络针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识,具体包括:
若所述WLAN网络与所述基站通过层2帧的方式进行通信,所述WLAN网络针对所述路径建立请求消息分配路径标识,并向所述基站发送路径建立回复消息,将相关的路径建立信息通知所述基站,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若所述WLAN网络与所述基站通过GTP隧道的方式进行通信,所述WLAN网络针对所述路径建立请求消息分配路径标识,并向所述基站发送创建承载回复消息,将相关的路径建立信息通知所述基站,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
本发明实施例中提供了一种数据分流的路径建立装置,应用在基站侧,包括:
发送单元,用于确定一用户设备UE连接到指定的无线局域网WLAN网络后,向所述WLAN网络发送请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
接收单元,用于接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识;
确认单元,用于向所述UE发送路径转换确认消息,向所述UE通知从所述基站分流到所述WLAN网络的路径建立成功。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而 且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述接收单元接收到的所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,确定所述UE连接到指定的WLAN网络之前,所述发送单元进一步用于:
确定当前网络接入负载大于预设的阈值时,向所述UE发送分流通知消息,所述分流通知消息用于将指定的WLAN网络的标识和需要分流到所述WLAN网络的无线承载标识告知所述UE;
所述接收单元,进一步用于接收所述UE反馈的分流确认消息,所述分流确认消息用于确认所述UE接受向指定的WLAN网络的分流操作。
可选的,所述接收单元进一步用于:
在预处理阶段,接收所述UE发送的无线资源控制RRC消息,所述RRC消息中携带有所述UE的第一MAC地址;
将所述UE的第一MAC地址进行保存。
可选的,向所述WLAN网络发送请求消息时,所述发送单元具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,向所述WLAN网络发送路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,向所述WLAN网络发送创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,接收所述WLAN网络针对所述请求消息返回的回复消息时,所 述接收单元具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,接收所述WLAN网络针对所述路径建立请求消息返回的路径建立回复消息,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若基站与所述WLAN网络通过GTP隧道的方式进行通信,接收所述WLAN网络针对所述创建承载请求消息返回的创建承载回复消息,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
可选的,进一步包括:
通信单元,用于在向所述UE发送路径转换确认消息之后,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据。
可选的,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,所述通信单元具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,基于所述路径建立请求消息和所述路径建立回复消息在所述基站与所述WLAN网络之间建立至少一个分流路径;
接收所述WLAN网络转发的上行数据包,并将所述上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从所述至少一个分流路径对应的S1承载接收到下行数据后,将所述下行数据封装成MAC帧的下行数据包,将所述下行数据包转发给所述WLAN网络,通过所述WLAN网络将所述下行数据包重新封帧成第一下行数据包,将所述第一下行数据包发送给所述UE,完成第一部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述上行数据包在所述WLAN网络和所述基站之间传输时,封装所述上行数据包的源MAC 地址为第二MAC地址,目的MAC地址为所述基站的MAC地址,所述下行数据包的源MAC地址为所述基站的MAC地址,目的MAC地址为第二MAC地址,所述第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
可选的,基于所述第一MAC地址和所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,所述通信单元具体用于:
若基站与所述WLAN网络通过GTP隧道的方式进行通信,基于所述创建承载请求消息和所述创建承载回复消息在所述基站与所述WLAN网络之间建立一新建承载;
利用所述新建承载接收所述WLAN网络转发的上行数据包,并从所述新建承载接收到所述上行数据包后将所述上行数据包转发至与所述新建承载对应的S1承载进行发送,以及从所述至少一个无线承载标识对应的S1承载接收到下行数据后将所述下行数据转发至与S1承载对应的新建承载,通过所述WLAN网络将所述下行数据封装成MAC帧的第二下行数据包发送给所述UE,完成第二部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述第二下行数据包的源MAC地址为所述WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
本发明实施例中提供了一种数据分流的路径建立装置,应用在无线局域网,包括:
接收单元,用于接收基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
发送单元,用于针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态, 所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述发送单元分配的所述路径标识为针对所述请求消息分配的第二MAC地址或针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,接收所述基站发送的请求消息时,所述接收单元具体用于:
若所述装置与所述基站通过层2帧的方式进行通信,接收所述基站发送的路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述装置与所述基站通过GTP隧道的方式进行通信,接收所述基站发送的创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站时,所述发送单元具体用于:
若所述装置与所述基站通过层2帧的方式进行通信,针对所述路径建立请求消息分配路径标识,并向所述基站发送路径建立回复消息,将相关的路径建立信息通知所述基站,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若所述装置与所述基站通过GTP隧道的方式进行通信,针对所述路径建立请求消息分配路径标识,并向所述基站发送创建承载回复消息,将相关的路径建立信息通知所述基站,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
本发明实施例中提供了一种网络侧设备,包括:
处理器,用于用于读取存储器中的程序,执行下列过程:
确定一用户设备UE连接到指定的无线局域网WLAN网络后,通过收发机向所述WLAN网络发送请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;通过收发机接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识;通过收发机向所述UE发送路径转换确认消息,向所述UE通知从所述基站分流到所述WLAN网络的路径建立成功。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,通过收发机接收到的所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,确定所述UE连接到指定的WLAN网络之前,所述处理器进一步用于:
确定当前网络接入负载大于预设的阈值时,通过收发机向所述UE发送分流通知消息,所述分流通知消息用于将指定的WLAN网络的标识和需要分流到所述WLAN网络的无线承载标识告知所述UE;
可选的,处理器通过收发机接收所述UE反馈的分流确认消息,所述分流确认消息用于确认所述UE接受向指定的WLAN网络的分流操作。
可选的,处理器进一步用于:
在预处理阶段,通过收发机接收所述UE发送的无线资源控制RRC消息,所述RRC消息中携带有所述UE的第一MAC地址;
将所述UE的第一MAC地址进行保存。
可选的,通过收发机向所述WLAN网络发送请求消息时,处理器具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,通过收发机向所述WLAN网络发送路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,通过收发机向所述WLAN网络发送创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,通过收发机接收所述WLAN网络针对所述请求消息返回的回复消息时,处理器具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,通过收发机接收所述WLAN网络针对所述路径建立请求消息返回的路径建立回复消息,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若基站与所述WLAN网络通过GTP隧道的方式进行通信,通过收发机接收所述WLAN网络针对所述创建承载请求消息返回的创建承载回复消息,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
可选的,处理器进一步用于在通过收发机向所述UE发送路径转换确认消息之后,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据。
可选的,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,处理器具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,基于所述路径建立请求消息和所述路径建立回复消息在所述基站与所述WLAN网络之间建立至少一个分流路径;
接收所述WLAN网络转发的上行数据包,并将所述上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从所述至少一个分流路径对应的S1承载接收到下行数据后,将所述下行数据封装成MAC帧的下行数据包,将所述下行数据包转发给所述WLAN网络,通过所述WLAN网络将所述下行数据包重新封帧成第一下行数据包,将所述第一下行数据包发送给所述UE,完成第一部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述上行数据包在所述WLAN网络和所述基站之间传输时,封装所述上行数据包的源MAC地址为第二MAC地址,目的MAC地址为所述基站的MAC地址,所述下行数据包的源MAC地址为所述基站的MAC地址,目的MAC地址为第二MAC地址,所述第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
可选的,基于所述第一MAC地址和所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,处理器具体用于:
若基站与所述WLAN网络通过GTP隧道的方式进行通信,基于所述创建承载请求消息和所述创建承载回复消息在所述基站与所述WLAN网络之间建立一新建承载;
利用所述新建承载接收所述WLAN网络转发的上行数据包,并从所述新建承载接收到所述上行数据包后将所述上行数据包转发至与所述新建承载对应的S1承载进行发送,以及从所述至少一个无线承载标识对应的S1承载接收到下行数据后将所述下行数据转发至与S1承载对应的新建承载,通过所述WLAN网络将所述下行数据封装成MAC帧的第二下行数据包发送给所述UE,完成第二部分数据的交互;其中,所述上行数据包在所述UE和所述 WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述第二下行数据包的源MAC地址为所述WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
收发机,用于在处理器的控制下接收和发送数据。
本发明实施例中提供了一种网络侧设备,包括:
处理器,用于用于读取存储器中的程序,执行下列过程:通过收发机接收基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;针对所述请求消息分配路径标识,并通过收发机向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述处理器分配的所述路径标识为针对所述请求消息分配的第二MAC地址或针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,通过收发机接收所述基站发送的请求消息时,所述处理器具体用于:
若所述网络侧设备与所述基站通过层2帧的方式进行通信,通过收发机接收所述基站发送的路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述网络侧设备与所述基站通过GTP隧道的方式进行通信,通过收发机接收所述基站发送的创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创 建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,针对所述请求消息分配路径标识,并通过收发机向所述基站发送回复消息,将相关的路径建立信息通知所述基站时,所述处理器具体用于:
若所述网络侧设备与所述基站通过层2帧的方式进行通信,针对所述路径建立请求消息分配路径标识,并通过收发机向所述基站发送路径建立回复消息,将相关的路径建立信息通知所述基站,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若所述网络侧设备与所述基站通过GTP隧道的方式进行通信,针对所述路径建立请求消息分配路径标识,并通过收发机向所述基站发送创建承载回复消息,将相关的路径建立信息通知所述基站,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
收发机,用于在处理器的控制下接收和发送数据。
附图说明
图1为现有的双连接示意图;
图2为eNB传输用户数据时使用的协议栈示意图;
图3为WLAN接入网络传输用户数据时使用的协议栈示意图;
图4为服务网关直接向主小区和辅小区分流示意图;
图5A和图5B为主小区向辅小区分流示意图;
图6为WLAN接入网络的逻辑结构示意图;
图7为本发明实施例一的路径建立方法流程示意图;
图8为本发明实施例一eNB决定分流的流程示意图;
图9为本发明实施例二的路径建立方法流程示意图;
图10为本发明实施例三的路径建立方法流程示意图;
图11为本发明实施例四的路径建立方法流程示意图;
图12为本发明实施例五的路径建立装置结构示意图;
图13为本发明实施例六的路径建立装置结构示意图;
图14为本发明实施例七的路径建立装置结构示意图;
图15为本发明实施例八的路径建立装置结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,并不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
双连接技术是指UE同时与2个eNB建立连接,同时使用2个eNB的无线资源传输用户数据。这2个eNB的作用不同,一个是MeNB,另外一个是SeNB,其中MeNB控制分流操作。
双连接技术支持2种分流方式,这2种分流方式的区别在于分流点不同。一种分流方式的分流点是核心网中的网关(Serving GW,S-GW),在这种分流方式下S-GW直接向MeNB和SeNB分流,MeNB决定Serving GW将哪些流量通过SeNB发送至UE,这种分流方式的示意图如图4所示。另外一种分流方式的分流点是MeNB,在这种分流方式下,S-GW将用户的所有流量都发送至MeNB(即S-GW不做分流),MeNB将用户的部分流量通过SeNB发送给UE。这种分流方式的示意图如图5A所示。
由于本发明实施例中主要关注eNB直接向WLAN分流的方法,从形式上看,这种分流方式和MeNB向SeNB分流相同,因此这里详细介绍MeNB向SeNB分流的方法,实现MeNB向SeNB分流的过程如图5B所示。
Step1:MeNB决定为某一UE选择一个SeNB,MeNB向SeNB发起辅基站增加请求(SeNB Addition Reuqest)消息,请求SeNB为即将进行转移的演 进接入无线承载(Evolved Radio Access Bearer,E-RAB)分配空口资源,指示E-RAB的属性信息(E-RAB参数,TNL等信息),UE能力信息等参数。MeNB也在会在辅小区组配置信息元素(SCG-ConfigInfoIE)中包含主小区组(Master Cell Group,MCG)的配置和UE能力信息,MeNB也会提供辅小区组(Secondary Cell Group,SCG)cell(s)最新的测量结果,SeNB可以拒绝该请求。
Step2:如果SeNB的无线资源管理(Radio Resource Management,RRM)实体决定接纳资源分配请求,SeNB将分配相应无线资源和传输网络资源。
Step3:如果MeNB认可SeNB的新配置,将触发RRC连接重配置(RRC Connection Reconfiguration)过程,UE开始应用新的配置。
Step4:UE完成重配置后,发送RRC连接重配置完成(RRC Connection Reconfiguration Complete)消息。如果UE不能遵从该配置,将执行重配失败流程。
Step5:MeNB通知SeNB,UE成功完成重配置过程。
Step6:UE向SeNB发起随机接入过程。其中Step4和Step6没有严格的顺序关系。
由于本发明实施例中主要关注eNB直接向WLAN分流的方法,WLAN接入网络的逻辑结构包括接入点,网关和鉴权设备等,这里以可信WLAN接入网络(Trusted WLAN Access Network,TWAN)为例,说明WLAN接入网络的逻辑结构,具体可参阅图6所示,在具体实现中,逻辑架构中的所有模块可能在同一个物理实体中实现,也可能分别在不同的物理实体中实现。本发明实施例中不限制eNB向WLAN网络中的哪个逻辑模块分流。对于接入运营商的核心网的WLAN网络,其是否可信,取决于运营商的设置。图6中的架构包括下述逻辑实体:
WLAN接入网络(WLAN Access Network,WLAN AN)由一个或多个WLAN接入点(Access Point,AP)组成,接入点终止UE的WLAN IEEE 802.11链路。
可信WLAN接入网关(Trusted WLAN Access Gateway,TWAG)负责将UE的数据转发至运营商的核心网,其中:
1)当TWAN使用透明单连接模式(Transparent Single-Connection mode,TSCM)或单连接模式(Single-Connection mode,SCM)向UE提供分组核心演进(Evolved Packet Core,EPC)接入时,TWAG在UE-TWAG点到点链路和UE的S2a隧道之间转发数据包。
2)当TWAN使用多连接模式(Multi-Connection mode,MCM)向UE提供EPC接入时,TWAG在与特定分组数据网(Packet Data Network,PDN)连接相关的UE-TWAG点到点链路和相关的S2a隧道之间转发用户面数据。
3)当TWAN使用MCM向UE提供EPC接入时,UE和TWAG之间使用无线局域网控制协议(WLAN Control Protocol,WLCP)信令。
可信WLAN AAA代理(Trusted WLAN AAA Proxy,TWAP)负责对UE进行认证,在WLAN接入网络(WLAN Acess Network,WLAN AN)和第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)验证、授权和记账(Authentication、Authorization、Accounting,AAA)服务器(Server)或3GPP AAA Proxy(代理)之间中转AAA信息。
基于MeNB向SeNB分流的方法,参阅图7所示,本发明实例一提供一种eNB直接向WLAN分流的路径建立方法,应用在基站侧,具体流程如下:
步骤700:基站确定一UE连接到指定的无线局域网WLAN网络后,向该WLAN网络发送请求消息,请求消息中至少携带有用户设备UE的第一媒体访问控制(Media Access Control,MAC)地址。
进一步的,在预处理阶段,基站接收该UE发送的无线资源控制(Radio Resource Control,RRC)消息,该RRC消息中携带有该UE的第一MAC地址;然后基站将该UE的第一MAC地址进行保存。
例如,UE可通过在RRC连接重配完成消息(具体可参考3GPP TS 36.331)中携带自身的MAC地址,实现将MAC地址发送给eNB。eNB在本地存储该信息,需要说明的是该MAC地址为UE的初始MAC地址,即设备的出厂 MAC地址。
进一步的,基站确定该UE连接到指定的WLAN网络之前,确定当前网络接入负载大于预设的阈值时,向该UE发送分流通知消息,该分流通知消息用于将指定的WLAN网络的标识和需要分流到该WLAN网络的无线承载标识告知该UE;基站接收该UE反馈的分流确认消息,该分流确认消息用于确认该UE接受向指定的WLAN网络的分流操作。
例如,基站确定该UE连接到指定的WLAN网络之前,确定当前网络负荷过重时,eNB决定分流,并通过下述过程触发分流操作,具体参阅图8所示。eNB决定分流之后,其还需要判断UE是否接受连接到指定的WLAN网络,确定接受时eNB触发下述过程。
Step1:eNB决定分流,向UE发送分流通知消息,该分流通知消息参数为需要分流的无线承载的标识和指定的WLAN网络的标识,这里的无线承载标识可以包含多个。
Step2:UE向eNB发送分流确认消息,eNB接收到分流确认消息之后,eNB发起路径转移过程。
具体的,UE接收到eNB发送的分流通知消息后,若当前UE接受分流操作时,进一步判断自身是否已经连接到指定的WLAN网络,判断当前是否与指定的WLAN网络连接,若是,则向eNB发送分流确认消息;否则,发起与指定的WLAN网络的连接请求后,向eNB发送分流确认消息。
具体的,基站向WLAN网络发送请求消息,具体包括以下两种情形:
第一种情形为:若基站与WLAN网络通过层2帧的方式进行通信,该基站向该WLAN网络发送路径建立请求消息,该路径建立请求消息用于请求该WLAN网络针对该路径建立请求消息分配相关路径地址参数,该路径建立请求消息中携带有UE的第一MAC地址。
第二种情形为:若基站与WLAN网络通过GPRS隧道协议(GPRS Tunneling Protocol,GTP)隧道的方式进行通信,该基站向该WLAN网络发送创建承载请求消息,该创建承载请求消息用于请求该WLAN网络针对该创 建承载请求消息分配相关路径地址参数,该创建承载请求消息中携带有UE的第一MAC地址和该基站为用户面分配的第二用户面隧道端点标识(Tunnel End Point Identifier,TEID)
步骤701:基站接收WLAN网络针对该请求消息返回的回复消息,该回复消息中至少携带有该WLAN网络针对该请求消息分配的路径标识。
其中,该路径标识可以为该WLAN网络针对该请求消息分配的第二MAC地址,也可以为该WLAN网络针对该请求消息分配的第一用户面TEID。
具体的,基站接收该WLAN网络针对该请求消息返回的回复消息,该回复消息中至少携带有该WLAN网络针对该请求消息分配的路径标识,具体包括以下两种情形:
第一种情形为:若基站与WLAN网络通过层2帧的方式进行通信,该基站接收该WLAN网络针对该路径建立请求消息返回的路径建立回复消息,该路径建立回复消息中携带有该WLAN网络针对该路径建立请求消息分配的第二MAC地址。
第二种情形为:若基站与WLAN网络通过GTP隧道的方式进行通信,该基站接收该WLAN网络针对该创建承载请求消息返回的创建承载回复消息,该创建承载回复消息中至少携带有该WLAN网络针对该创建承载请求消息分配的第一承载标识和第一用户面TEID。
步骤702:基站向UE发送路径转换消息,向该UE通知从基站分流到WLAN网络的路径建立成功。
进一步的,在基站向UE发送路径转换确认消息之后,基站基于路径标识,通过WLAN网络与UE进行第一部分数据的交互,该第一部分数据为基站需要通过WLAN网络与UE交互的数据。
具体的,基站基于路径标识,通过WLAN网络与UE进行第一部分数据的交互,具体包括以下两种情形:
第一种情形为:若基站与WLAN网络通过层2帧的方式进行通信,该基站基于该路径建立请求消息和该路径建立回复消息在该基站与该WLAN网络 之间建立至少一个分流路径;
该基站接收该WLAN网络转发的上行数据包,并将该上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从该至少一个分流路径对应的S1承载接收到下行数据后,将该下行数据封装成MAC帧的下行数据包,将该下行数据包转发给该WLAN网络,通过该WLAN网络将该下行数据包重新封帧成第一下行数据包,将该第一下行数据包发送给该UE,完成第一部分数据的交互;其中,该上行数据包在该UE和该WLAN网络之间传输时,封装该上行数据包的源MAC地址为第一MAC地址,目的MAC地址为该WLAN网络的初始MAC地址,该上行数据包在该WLAN网络和该基站之间传输时,封装该上行数据包的源MAC地址为第二MAC地址,目的MAC地址为该基站的MAC地址,该下行数据包的源MAC地址为该基站的MAC地址,目的MAC地址为第二MAC地址,该第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
第二种情形为:若基站与WLAN网络通过GTP隧道的方式进行通信,该基站基于该创建承载请求消息和该创建承载回复消息在该基站与该WLAN网络之间建立一新建承载;
该基站利用该新建承载接收该WLAN网络转发的上行数据包,并从该新建承载接收到该上行数据包后将该上行数据包转发至与该新建承载对应的S1承载进行发送,以及从该至少一个无线承载标识对应的S1承载接收到下行数据后将该下行数据转发至与S1承载对应的新建承载,通过该WLAN网络将该下行数据封装成MAC帧的第二下行数据包发送给该UE,完成第二部分数据的交互;其中,该上行数据包在该UE和该WLAN网络之间传输时,封装该上行数据包的源MAC地址为第一MAC地址,目的MAC地址为该WLAN网络的初始MAC地址,该第二下行数据包的源MAC地址为该WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
基于上述实施例一数据分流的路径建立方法,实施例二和实施例三分别给出基站和WLAN网络采用不同协议时,如何实现将基站的部分数据分流到 无限局域网与UE进行交互。
实施例二
在本实施例二中,eNB和WLAN网络之间使用的是GTP协议。具体的,在eNB和WLAN网络之间建立和转移路径的过程如图9所示,具体过程如下:
Step1:eNB向指定的WLAN网络发送创建承载请求消息,该创建承载请求消息中的参数包括MAC地址1(即UE的初始MAC地址)和eNB为用户面分配的TEID。
Step2:WLAN网络分配承载标识和用户面TEID,然后向eNB返回创建承载回复消息,该创建承载回复消息中的参数包括WLAN网络分配的承载标识和用户面TEID。
Step3:eNB向UE发送路径转换确认消息,向该UE通知从该eNB分流到上述WLAN网络的路径建立成功。
执行上述过程之后,eNB和WLAN网络之间建立了GTP隧道。
基于上述步骤,下面说明路径转换之后的上下行数据的路由方式。
正常情况下,eNB中存储的承载之间的映射关系为<S1承载,无线承载>,其中S1承载字段和无线承载字段包括的是可以标识对应承载的信息,例如S1承载字段包括eNB为该承载分配的S1-TEID和SGW分配的S1-TEID,无线承载字段存储是无线承载标识。此时的数据路由方式如下:
上行:eNB从无线承载接收到数据之后将其转发至与无线承载对应的S1承载。
下行:eNB从S1承载接收到数据之后将其转发至与S1承载对应的无线承载。
执行实施例二之后,eNB和WLAN网络存储的信息分别如下:
1)eNB存储的承载之间的映射关系为<S1承载,新建承载>,其中新建承载为通过上述Step1和Step2在eNB和WLAN网络之间建立的承载,新建承载字段的信息可以是eNB为用户面分配的TEID和WLAN分配的用户面TEID。
2)WLAN网络存储的信息为<新建承载,MAC地址1>之间的映射关系。
此时的数据路由方式如下:
eNB的上下行数据路由如下:
上行:从新建承载接收到数据之后将其转发至与新建承载对应的S1承载;
下行:从S1承载接收到数据之后将其转发至与S1承载对应的新建承载。
WLAN网络的上下行数据路由如下:
上行:接收到源MAC地址的为MAC地址1的数据包时,将其转发至与MAC地址1对应的新建承载;
下行:从新建承载接收到数据之后,将内部IP包封装成MAC帧,源MAC地址是WLAN网络的初始MAC地址,目的地址为与新建承载对应的MAC地址,即MAC地址1。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
实施例三
在本实施例三中,eNB和WLAN网络之间使用层二转发的方式传输数据。具体的,在eNB和WLAN网络之间建立和转移路径的过程如图10所示,具体过程如下:
Step1:eNB向指定的WLAN网络发送路径建立请求消息,该路径建立请求消息中的参数包括MAC地址1即UE的初始MAC地址;
Step2:WLAN网络为传输该承载的数据分配一个MAC地址,即MAC地址2,该MAC地址可以为WLAN网络中的GW的MAC地址,然后向eNB返回路径建立回复消息,该路径建立回复消息中的参数包括MAC地址2;
Step3:eNB向UE发送路径转换确认消息,向该UE通知从该eNB分流到上述WLAN网络的路径建立成功。
基于上述步骤,下面说明路径转换之后的上下行数据的路由方式。
正常情况下,eNB中存储的承载之间的映射关系为<S1承载,无线承载>,其中S1承载字段和无线承载字段包括的是可以标识对应承载的信息,例如S1承载字段包括eNB为该承载分配的S1-TEID和SGW分配的S1-TEID,无线承载字段存储是无线承载标识。此时的数据路由方式如下:
上行:eNB从无线承载接收到数据之后将其转发至与无线承载对应的S1承载。
下行:eNB从S1承载接收到数据之后将其转发至与S1承载对应的无线承载。
执行实施例三之后,eNB和WLAN网络存储的信息分别如下:
1)eNB存储的承载之间的映射关系为<S1承载,WLAN的信息>,其中WLAN的信息可以是WLAN网络中的GW的MAC地址即MAC地址2或WLAN网络的服务集标识(Service Set Identifier的缩写,SSID)。
2)WLAN网络在UE的上下文中存储MAC地址2。另外,其还可能存储UE的初始MAC地址,即MAC地址1。
此时的数据路由方式如下:
eNB的上下行数据路由如下:
上行:eNB接收到源MAC地址是MAC地址2的MAC帧,eNB使用S1承载发送IP包。
下行:从S1承载接收到数据之后,将UE的数据封装成MAC帧,源MAC地址是eNB的MAC地址,目的MAC地址是MAC地址2。
WLAN网络的上下行数据路由如下:
上行:接收到源MAC地址为MAC地址1,目的MAC地址为WLAN网络的初始MAC地址的数据包时,将IP包重新封帧,源MAC地址是MAC地址2,目的MAC地址是eNB的MAC地址;
下行:接收到源MAC地址是eNB的MAC地址,目的地址是MAC地址2的MAC帧时,将IP包重新封帧,源MAC地址是MAC地址2,目的MAC 地址是UE的MAC地址,即MAC地址1。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
基于MeNB向SeNB分流的方法,参阅图11所示,本发明实例四提供一种数据分流的路径建立方法,应用在无线局域网,具体实施中可以为无线局域网的管理设备,具体流程如下:
步骤110:WLAN网络接收基站发送的请求消息,该请求消息中至少携带有用户设备UE的第一MAC地址。
步骤111:WLAN网络针对上述请求消息分配路径标识,并向基站发送回复消息,将相关的路径建立信息通知该基站,该回复消息中携带有该WLAN网络分配的路径标识。
其中,路径标识为WLAN网络针对上述请求消息分配的第二MAC地址或WLAN网络针对上述请求消息分配的第一TEID
具体的,WLAN网络针对上述请求消息分配路径标识,具体包括以下两种情形:
第一种情形为:该WLAN网络中的网关针对上述请求消息分配路径标识。
第二种情形为:该WLAN网络中的接入点AP针对上述请求消息分配路径标识。
其中,第二MAC地址用于标识位于WLAN网络和基站之间的需要分流的第一部分数据传输路径。
具体的,WLAN网络接收基站发送的请求消息,该请求消息中至少携带有用户设备UE的第一MAC地址,具体包括以下两种情形:
第一种情形为:若该WLAN网络与该基站通过层2帧的方式进行通信,该WLAN网络接收该基站发送的路径建立请求消息,该路径建立请求消息用 于请求该WLAN网络针对该路径建立请求消息分配相关路径地址参数,该路径建立请求消息中携带有UE的第一MAC地址;
第二种情形为:若该WLAN网络与该基站通过GTP隧道的方式进行通信,该WLAN网络接收该基站发送的创建承载请求消息,该创建承载请求消息用于请求该WLAN网络针对该创建承载请求消息分配相关路径地址参数,该创建承载请求消息中携带有UE的第一MAC地址和该基站为用户面分配的第二用户面隧道端点标识TEID。
具体的,WLAN网络针对上述请求消息分配路径标识,并向该基站发送回复消息,将相关的路径建立信息通知该基站,具以下两种情形:
第一种情形为:若该WLAN网络与该基站通过层2帧的方式进行通信,该WLAN网络针对该路径建立请求消息分配路径标识,并向该基站发送路径建立回复消息,将相关的路径建立信息通知该基站,该路径建立回复消息中携带有该WLAN网络针对该路径建立请求消息分配的第二MAC地址;或,
第二种情形为:若该WLAN网络与该基站通过GTP隧道的方式进行通信,该WLAN网络针对该路径建立请求消息分配路径标识,并向该基站发送创建承载回复消息,将相关的路径建立信息通知该基站,该创建承载回复消息中至少携带有该WLAN网络针对该创建承载请求消息分配的第一承载标识、第一用户面TEID。
基于上述实施例参阅图12所示,本发明实施例五提供一种数据分流的路径建立装置,应用在基站侧,包括:发送单元120,接收单元121,确认单元122和通信单元123,其中:
发送单元120,用于确定一用户设备UE连接到指定的无线局域网WLAN网络后,向所述WLAN网络发送请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
接收单元121,用于接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识;
确认单元122,用于向所述UE发送路径转换确认消息,向所述UE通知从所述基站分流到所述WLAN网络的路径建立成功。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述接收单元121接收到的所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,确定所述UE连接到指定的WLAN网络之前,所述发送单元120进一步用于:
确定当前网络接入负载大于预设的阈值时,向所述UE发送分流通知消息,所述分流通知消息用于将指定的WLAN网络的标识和需要分流到所述WLAN网络的无线承载标识告知所述UE;
所述接收单元121,进一步用于接收所述UE反馈的分流确认消息,所述分流确认消息用于确认所述UE接受向指定的WLAN网络的分流操作。
可选的,所述接收单元121进一步用于:
在预处理阶段,接收所述UE发送的无线资源控制RRC消息,所述RRC消息中携带有所述UE的第一MAC地址;
将所述UE的第一MAC地址进行保存。
可选的,向所述WLAN网络发送请求消息时,所述发送单元120具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,向所述WLAN网络发送路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,向所述WLAN网络发送创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,接收所述WLAN网络针对所述请求消息返回的回复消息时,所述接收单元121具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,接收所述WLAN网络针对所述路径建立请求消息返回的路径建立回复消息,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若基站与所述WLAN网络通过GTP隧道的方式进行通信,接收所述WLAN网络针对所述创建承载请求消息返回的创建承载回复消息,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
可选的,进一步包括:
通信单元123,用于在向所述UE发送路径转换确认消息之后,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据。
可选的,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,所述通信单元123具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,基于所述路径建立请求消息和所述路径建立回复消息在所述基站与所述WLAN网络之间建立至少一个分流路径;
所述基站接收所述WLAN网络转发的上行数据包,并将所述上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从所述至少一个分流路径对应的S1承载接收到下行数据后,将所述下行数据封装成MAC帧 的下行数据包,将所述下行数据包转发给所述WLAN网络,通过所述WLAN网络将所述下行数据包重新封帧成第一下行数据包,将所述第一下行数据包发送给所述UE,完成第一部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述上行数据包在所述WLAN网络和所述基站之间传输时,封装所述上行数据包的源MAC地址为第二MAC地址,目的MAC地址为所述基站的MAC地址,所述下行数据包的源MAC地址为所述基站的MAC地址,目的MAC地址为第二MAC地址,所述第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
可选的,基于所述第一MAC地址和所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,所述通信单元123具体用于:
若基站与所述WLAN网络通过GTP隧道的方式进行通信,所述基站基于所述创建承载请求消息和所述创建承载回复消息在所述基站与所述WLAN网络之间建立一新建承载;
所述基站利用所述新建承载接收所述WLAN网络转发的上行数据包,并从所述新建承载接收到所述上行数据包后将所述上行数据包转发至与所述新建承载对应的S1承载进行发送,以及从所述至少一个无线承载标识对应的S1承载接收到下行数据后将所述下行数据转发至与S1承载对应的新建承载,通过所述WLAN网络将所述下行数据封装成MAC帧的第二下行数据包发送给所述UE,完成第二部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述第二下行数据包的源MAC地址为所述WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
基于上述实施例参阅图13所示,本发明实施例六提供一种数据分流的路径建立装置,应用在无线局域网,包括:接收单元130和发送单元131,其中:
接收单元130,用于接收基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
发送单元131,用于针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述发送单元131分配的所述路径标识为针对所述请求消息分配的第二MAC地址或针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,接收所述基站发送的请求消息时,所述接收单元130具体用于:
若所述装置与所述基站通过层2帧的方式进行通信,接收所述基站发送的路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述装置与所述基站通过GTP隧道的方式进行通信,接收所述基站发送的创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站时,所述发送单元131具体用于:
若所述装置与所述基站通过层2帧的方式进行通信,针对所述路径建立请求消息分配路径标识,并向所述基站发送路径建立回复消息,将相关的路 径建立信息通知所述基站,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若所述装置与所述基站通过GTP隧道的方式进行通信,针对所述路径建立请求消息分配路径标识,并向所述基站发送创建承载回复消息,将相关的路径建立信息通知所述基站,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
基于上述实施例参阅图14所示,本发明实施例七提供一种网络侧设备,包括:
处理器1400,用于用于读取存储器1420中的程序,执行下列过程:
确定一用户设备UE连接到指定的无线局域网WLAN网络后,通过收发机1410向所述WLAN网络发送请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;通过收发机1410接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识;通过收发机1410向所述UE发送路径转换确认消息,向所述UE通知从所述基站分流到所述WLAN网络的路径建立成功。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,通过收发机1410接收到的所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,确定所述UE连接到指定的WLAN网络之前,所述处理器1400进一步用于:
确定当前网络接入负载大于预设的阈值时,通过收发机1410向所述UE 发送分流通知消息,所述分流通知消息用于将指定的WLAN网络的标识和需要分流到所述WLAN网络的无线承载标识告知所述UE;
可选的,处理器1400通过收发机1410接收所述UE反馈的分流确认消息,所述分流确认消息用于确认所述UE接受向指定的WLAN网络的分流操作。
可选的,处理器1400进一步用于:
在预处理阶段,通过收发机1410接收所述UE发送的无线资源控制RRC消息,所述RRC消息中携带有所述UE的第一MAC地址;
将所述UE的第一MAC地址进行保存。
可选的,通过收发机1410向所述WLAN网络发送请求消息时,处理器1400具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,通过收发机1410向所述WLAN网络发送路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,通过收发机1410向所述WLAN网络发送创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,通过收发机1410接收所述WLAN网络针对所述请求消息返回的回复消息时,处理器1400具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,通过收发机1410接收所述WLAN网络针对所述路径建立请求消息返回的路径建立回复消息,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
若基站与所述WLAN网络通过GTP隧道的方式进行通信,通过收发机1410接收所述WLAN网络针对所述创建承载请求消息返回的创建承载回复消 息,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
可选的,处理器1400进一步用于在通过收发机1410向所述UE发送路径转换确认消息之后,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据。
可选的,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,处理器1400具体用于:
若基站与所述WLAN网络通过层2帧的方式进行通信,基于所述路径建立请求消息和所述路径建立回复消息在所述基站与所述WLAN网络之间建立至少一个分流路径;
接收所述WLAN网络转发的上行数据包,并将所述上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从所述至少一个分流路径对应的S1承载接收到下行数据后,将所述下行数据封装成MAC帧的下行数据包,将所述下行数据包转发给所述WLAN网络,通过所述WLAN网络将所述下行数据包重新封帧成第一下行数据包,将所述第一下行数据包发送给所述UE,完成第一部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述上行数据包在所述WLAN网络和所述基站之间传输时,封装所述上行数据包的源MAC地址为第二MAC地址,目的MAC地址为所述基站的MAC地址,所述下行数据包的源MAC地址为所述基站的MAC地址,目的MAC地址为第二MAC地址,所述第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
可选的,基于所述第一MAC地址和所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,处理器1400具体用于:
若基站与所述WLAN网络通过GTP隧道的方式进行通信,基于所述创建 承载请求消息和所述创建承载回复消息在所述基站与所述WLAN网络之间建立一新建承载;
利用所述新建承载接收所述WLAN网络转发的上行数据包,并从所述新建承载接收到所述上行数据包后将所述上行数据包转发至与所述新建承载对应的S1承载进行发送,以及从所述至少一个无线承载标识对应的S1承载接收到下行数据后将所述下行数据转发至与S1承载对应的新建承载,通过所述WLAN网络将所述下行数据封装成MAC帧的第二下行数据包发送给所述UE,完成第二部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述第二下行数据包的源MAC地址为所述WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
收发机1410,用于在处理器1400的控制下接收和发送数据。
其中,在图14中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1400代表的一个或多个处理器和存储器1420代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1410可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器1400负责管理总线架构和通常的处理,存储器1420可以存储处理器1400在执行操作时所使用的数据。
基于上述实施例参阅图15所示,本发明实施例八提供一种网络侧设备,包括:
处理器1500,用于用于读取存储器1520中的程序,执行下列过程:通过收发机1510接收基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;针对所述请求消息分配路径标识,并通过收发机1510向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复 消息中携带有所述WLAN网络分配的路径标识。
这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
可选的,所述处理器1500分配的所述路径标识为针对所述请求消息分配的第二MAC地址或针对所述请求消息分配的第一用户面隧道端点标识TEID。
可选的,通过收发机1510接收所述基站发送的请求消息时,所述处理器1500具体用于:
若所述网络侧设备与所述基站通过层2帧的方式进行通信,通过收发机1510接收所述基站发送的路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
若所述网络侧设备与所述基站通过GTP隧道的方式进行通信,通过收发机1510接收所述基站发送的创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
可选的,针对所述请求消息分配路径标识,并通过收发机1510向所述基站发送回复消息,将相关的路径建立信息通知所述基站时,所述处理器1500具体用于:
若所述网络侧设备与所述基站通过层2帧的方式进行通信,针对所述路径建立请求消息分配路径标识,并通过收发机1510向所述基站发送路径建立回复消息,将相关的路径建立信息通知所述基站,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址; 或,
若所述网络侧设备与所述基站通过GTP隧道的方式进行通信,针对所述路径建立请求消息分配路径标识,并通过收发机1510向所述基站发送创建承载回复消息,将相关的路径建立信息通知所述基站,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
收发机1510,用于在处理器1500的控制下接收和发送数据。
其中,在图15中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1500代表的一个或多个处理器和存储器1520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1510可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器1500负责管理总线架构和通常的处理,存储器1520可以存储处理器1500在执行操作时所使用的数据。
综上所述,本发明实施例中,基站确定一用户设备UE连接到指定的无线局域网WLAN网络后,向该WLAN网络发送请求消息;然后基站接收WLAN网络针对该请求消息返回的回复消息;基站向该UE发送路径转换确认消息,向该UE通知从该基站分流到该WLAN网络的路径建立成功,这样,当3GPP接入网络拥塞时,WLAN接入网络可能处于空闲状态,所以可以利用WLAN接入网络的空口将应该通过3GPP接入网络传输的部分流量分流到WLAN接入网络,这样不仅能为为用户提供更好的服务体验,而且提高了3GPP接入网络的无线利用率,同时增加了3GPP接入网络的吞吐量,提升数据的传输速率,进一步使系统性能得到显著的优化。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样,倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (27)

  1. 一种数据分流的路径建立方法,应用在基站侧,其特征在于,包括:
    基站确定一用户设备UE连接到指定的无线局域网WLAN网络后,向所述WLAN网络发送请求消息,所述请求消息中至少携带有该用户设备UE的第一MAC地址;
    所述基站接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识;
    所述基站向所述UE发送路径转换确认消息,向所述UE通知从所述基站分流到所述WLAN网络的路径建立成功。
  2. 如权利要求1所述的方法,其特征在于,所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
  3. 如权利要求2所述的方法,其特征在于,所述基站接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标识,具体包括:
    若所述基站与所述WLAN网络通过层2帧的方式进行通信,所述基站接收所述WLAN网络针对所述路径建立请求消息返回的路径建立回复消息,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
    若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,所述基站接收所述WLAN网络针对所述创建承载请求消息返回的创建承载回复消息,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
  4. 如权利要求1所述的方法,其特征在于,所述基站确定所述UE连接到指定的WLAN网络之前,进一步包括:
    所述基站确定当前网络接入负载大于预设的阈值时,向所述UE发送分流 通知消息,所述分流通知消息用于将指定的WLAN网络的标识和需要分流到所述WLAN网络的无线承载标识告知所述UE;
    所述基站接收所述UE反馈的分流确认消息,所述分流确认消息用于确认所述UE接受向指定的WLAN网络的分流操作。
  5. 如权利要求1所述的方法,其特征在于,进一步包括:
    在预处理阶段,所述基站接收所述UE发送的无线资源控制RRC消息,所述RRC消息中携带有所述UE的第一MAC地址;
    所述基站将所述UE的第一MAC地址进行保存。
  6. 如权利要求1-5任一项所述的方法,其特征在于,所述基站向所述WLAN网络发送请求消息,所述请求消息中至少携带有UE的第一MAC地址,具体包括:
    若所述基站与所述WLAN网络通过层2帧的方式进行通信,所述基站向所述WLAN网络发送路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
    若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,所述基站向所述WLAN网络发送创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
  7. 如权利要求6所述的方法,其特征在于,在所述基站向所述UE发送路径转换确认消息之后,进一步包括:
    所述基站基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据。
  8. 如权利要求7所述的方法,其特征在于,所述基站基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数 据为基站需要通过所述WLAN网络与所述UE交互的数据,具体包括:
    若所述基站与所述WLAN网络通过层2帧的方式进行通信,所述基站基于所述路径建立请求消息和所述路径建立回复消息在所述基站与所述WLAN网络之间建立至少一个分流路径;
    所述基站接收所述WLAN网络转发的上行数据包,并将所述上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从所述至少一个分流路径对应的S1承载接收到下行数据后,将所述下行数据封装成MAC帧的下行数据包,将所述下行数据包转发给所述WLAN网络,通过所述WLAN网络将所述下行数据包重新封帧成第一下行数据包,将所述第一下行数据包发送给所述UE,完成第一部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址;所述上行数据包在所述WLAN网络和所述基站之间传输时,封装所述上行数据包的源MAC地址为第二MAC地址,目的MAC地址为所述基站的MAC地址,所述下行数据包的源MAC地址为所述基站的MAC地址,目的MAC地址为第二MAC地址,所述第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
  9. 如权利要求7所述的方法,其特征在于,所述基站基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据,具体包括:
    若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,所述基站基于所述创建承载请求消息和所述创建承载回复消息在所述基站与所述WLAN网络之间建立一新建承载;
    所述基站利用所述新建承载接收所述WLAN网络转发的上行数据包,并从所述新建承载接收到所述上行数据包后将所述上行数据包转发至与所述新建承载对应的S1承载进行发送,以及从所述至少一个无线承载标识对应的S1承载接收到下行数据后将所述下行数据转发至与S1承载对应的新建承载,通 过所述WLAN网络将所述下行数据封装成MAC帧的第二下行数据包发送给所述UE,完成第二部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述第二下行数据包的源MAC地址为所述WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
  10. 一种数据分流的路径建立方法,应用在无线局域网,其特征在于,包括:
    无线局域网WLAN网络接收基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
    所述WLAN网络针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识。
  11. 如权利要求10所述的方法,其特征在于,所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
  12. 如权利要求11所述的方法,其特征在于,所述WLAN网络针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识,具体包括:
    若所述WLAN网络与所述基站通过层2帧的方式进行通信,所述WLAN网络针对所述路径建立请求消息分配路径标识,并向所述基站发送路径建立回复消息,将相关的路径建立信息通知所述基站,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
    若所述WLAN网络与所述基站通过GTP隧道的方式进行通信,所述WLAN网络针对所述路径建立请求消息分配路径标识,并向所述基站发送创 建承载回复消息,将相关的路径建立信息通知所述基站,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
  13. 如权利要求10所述的方法,其特征在于,所述WLAN网络针对所述请求消息分配路径标识,具体包括:
    所述WLAN网络中的网关针对所述请求消息分配路径标识;或者,
    所述WLAN网络中的接入点AP针对所述请求消息分配路径标识;
    其中,所述路径标识用于标识位于所述WLAN网络和所述基站之间的需要分流的第一部分数据传输路径。
  14. 如权利要求10-13任一所述的方法,其特征在于,所述WLAN网络接收所述基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址,具体包括:
    若所述WLAN网络与所述基站通过层2帧的方式进行通信,所述WLAN网络接收所述基站发送的路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
    若所述WLAN网络与所述基站通过GTP隧道的方式进行通信,所述WLAN网络接收所述基站发送的创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
  15. 一种数据分流的路径建立装置,应用在基站侧,其特征在于,包括:
    发送单元,用于确定一用户设备UE连接到指定的无线局域网WLAN网络后,向所述WLAN网络发送请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
    接收单元,用于接收所述WLAN网络针对所述请求消息返回的回复消息,所述回复消息中至少携带有所述WLAN网络针对所述请求消息分配的路径标 识;
    确认单元,用于向所述UE发送路径转换确认消息,向所述UE通知从所述基站分流到所述WLAN网络的路径建立成功。
  16. 如权利要求15所述的装置,其特征在于,所述接收单元接收到的所述路径标识为所述WLAN网络针对所述请求消息分配的第二MAC地址或所述WLAN网络针对所述请求消息分配的第一用户面隧道端点标识TEID。
  17. 如权利要求16所述的装置,其特征在于,接收所述WLAN网络针对所述请求消息返回的回复消息时,所述接收单元具体用于:
    若基站与所述WLAN网络通过层2帧的方式进行通信,接收所述WLAN网络针对所述路径建立请求消息返回的路径建立回复消息,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
    若基站与所述WLAN网络通过GTP隧道的方式进行通信,接收所述WLAN网络针对所述创建承载请求消息返回的创建承载回复消息,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
  18. 如权利要求15所述的装置,其特征在于,确定所述UE连接到指定的WLAN网络之前,所述发送单元进一步用于:
    确定当前网络接入负载大于预设的阈值时,向所述UE发送分流通知消息,所述分流通知消息用于将指定的WLAN网络的标识和需要分流到所述WLAN网络的无线承载标识告知所述UE;
    所述接收单元,进一步用于接收所述UE反馈的分流确认消息,所述分流确认消息用于确认所述UE接受向指定的WLAN网络的分流操作。
  19. 如权利要求15所述的装置,其特征在于,所述接收单元进一步用于:
    在预处理阶段,接收所述UE发送的无线资源控制RRC消息,所述RRC消息中携带有所述UE的第一MAC地址;
    将所述UE的第一MAC地址进行保存。
  20. 如权利要求15-19任一项所述的装置,其特征在于,向所述WLAN网络发送请求消息时,所述发送单元具体用于:
    若基站与所述WLAN网络通过层2帧的方式进行通信,向所述WLAN网络发送路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
    若所述基站与所述WLAN网络通过GTP隧道的方式进行通信,向所述WLAN网络发送创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
  21. 如权利要求20所述的装置,其特征在于,进一步包括:
    通信单元,用于在向所述UE发送路径转换确认消息之后,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互,所述第一部分数据为基站需要通过所述WLAN网络与所述UE交互的数据。
  22. 如权利要求21所述的装置,其特征在于,基于所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,所述通信单元具体用于:
    若基站与所述WLAN网络通过层2帧的方式进行通信,基于所述路径建立请求消息和所述路径建立回复消息在所述基站与所述WLAN网络之间建立至少一个分流路径;
    接收所述WLAN网络转发的上行数据包,并将所述上行数据包进行重新封帧成第一上行数据包使用S1承载进行发送,以及从所述至少一个分流路径对应的S1承载接收到下行数据后,将所述下行数据封装成MAC帧的下行数据包,将所述下行数据包转发给所述WLAN网络,通过所述WLAN网络将所述下行数据包重新封帧成第一下行数据包,将所述第一下行数据包发送给所述UE,完成第一部分数据的交互;其中,所述上行数据包在所述UE和所 述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述上行数据包在所述WLAN网络和所述基站之间传输时,封装所述上行数据包的源MAC地址为第二MAC地址,目的MAC地址为所述基站的MAC地址,所述下行数据包的源MAC地址为所述基站的MAC地址,目的MAC地址为第二MAC地址,所述第一下行数据包的源MAC地址为第二MAC地址,目的MAC地址为第一MAC地址。
  23. 如权利21所述的装置,其特征在于,基于所述第一MAC地址和所述路径标识,通过所述WLAN网络与所述UE进行第一部分数据的交互时,所述通信单元具体用于:
    若基站与所述WLAN网络通过GTP隧道的方式进行通信,基于所述创建承载请求消息和所述创建承载回复消息在所述基站与所述WLAN网络之间建立一新建承载;
    利用所述新建承载接收所述WLAN网络转发的上行数据包,并从所述新建承载接收到所述上行数据包后将所述上行数据包转发至与所述新建承载对应的S1承载进行发送,以及从所述至少一个无线承载标识对应的S1承载接收到下行数据后将所述下行数据转发至与S1承载对应的新建承载,通过所述WLAN网络将所述下行数据封装成MAC帧的第二下行数据包发送给所述UE,完成第二部分数据的交互;其中,所述上行数据包在所述UE和所述WLAN网络之间传输时,封装所述上行数据包的源MAC地址为第一MAC地址,目的MAC地址为所述WLAN网络的初始MAC地址,所述第二下行数据包的源MAC地址为所述WLAN网络的MAC地址,目的MAC地址为第一MAC地址。
  24. 一种数据分流的路径建立装置,应用在无线局域网,其特征在于,包括:
    接收单元,用于接收基站发送的请求消息,所述请求消息中至少携带有用户设备UE的第一MAC地址;
    发送单元,用于针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站,所述回复消息中携带有所述WLAN网络分配的路径标识。
  25. 如权利要求24所述的装置,其特征在于,所述发送单元分配的所述路径标识为针对所述请求消息分配的第二MAC地址或针对所述请求消息分配的第一用户面隧道端点标识TEID。
  26. 如权利要求25所述的装置,其特征在于,针对所述请求消息分配路径标识,并向所述基站发送回复消息,将相关的路径建立信息通知所述基站时,所述发送单元具体用于:
    若所述装置与所述基站通过层2帧的方式进行通信,针对所述路径建立请求消息分配路径标识,并向所述基站发送路径建立回复消息,将相关的路径建立信息通知所述基站,所述路径建立回复消息中携带有所述WLAN网络针对所述路径建立请求消息分配的第二MAC地址;或,
    若所述装置与所述基站通过GTP隧道的方式进行通信,针对所述路径建立请求消息分配路径标识,并向所述基站发送创建承载回复消息,将相关的路径建立信息通知所述基站,所述创建承载回复消息中至少携带有所述WLAN网络针对所述创建承载请求消息分配的第一承载标识和第一用户面TEID。
  27. 如权利要求24-26任一所述的装置,其特征在于,接收所述基站发送的请求消息时,所述接收单元具体用于:
    若所述装置与所述基站通过层2帧的方式进行通信,接收所述基站发送的路径建立请求消息,所述路径建立请求消息用于请求所述WLAN网络针对所述路径建立请求消息分配相关路径地址参数,所述路径建立请求消息中携带有UE的第一MAC地址;
    若所述装置与所述基站通过GTP隧道的方式进行通信,接收所述基站发送的创建承载请求消息,所述创建承载请求消息用于请求所述WLAN网络针对所述创建承载请求消息分配相关路径地址参数,所述创建承载请求消息中 携带有UE的第一MAC地址和所述基站为用户面分配的第二用户面隧道端点标识TEID。
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