WO2016074222A1 - 数据传输方法及设备 - Google Patents

数据传输方法及设备 Download PDF

Info

Publication number
WO2016074222A1
WO2016074222A1 PCT/CN2014/091122 CN2014091122W WO2016074222A1 WO 2016074222 A1 WO2016074222 A1 WO 2016074222A1 CN 2014091122 W CN2014091122 W CN 2014091122W WO 2016074222 A1 WO2016074222 A1 WO 2016074222A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
user equipment
wlan
address
data unit
Prior art date
Application number
PCT/CN2014/091122
Other languages
English (en)
French (fr)
Inventor
刘菁
曾清海
戴明增
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201480010657.4A priority Critical patent/CN106171003B/zh
Priority to PCT/CN2014/091122 priority patent/WO2016074222A1/zh
Publication of WO2016074222A1 publication Critical patent/WO2016074222A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/086Load balancing or load distribution among access entities
    • H04W28/0861Load balancing or load distribution among access entities between base stations
    • H04W28/0865Load balancing or load distribution among access entities between base stations of different Radio Access Technologies [RATs], e.g. LTE or WiFi

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a data transmission method and device.
  • WLAN wireless local area network
  • the wireless cellular network has the advantages of wide coverage, high-speed mobile support, and the disadvantages of low data rate, high price, and large transmission power, and is suitable for high-speed sports and outdoor large-scale activities.
  • the WLAN has the advantages of high data rate, low price, small transmission power, and the like, and has a small coverage, and is suitable for relatively static, indoor small-scale activities and the like.
  • a feasible method is to integrate wireless cellular technology and WLAN technology, and use WLAN to offload data traffic of wireless cellular communication systems to improve user experience and achieve efficient and low-cost communication. .
  • a communication technology is known in which a user equipment (User Equipment, UE for short) has accessed an evolved packet core network (Evolved Packet Core, EPC for short) through a base station, and passes through a packet data network gateway (Packet Data Network). -Gateway, PDN-GW) Establish a Packet Data Network (PDN) connection. Then, the UE can access the EPC through, for example, a Trusted Wireless Local Area Networks Access Network (TWAN), and the TWAN can select a PDN-GW to create a PDN connection, thereby implementing Wireless cellular technology and WLAN technology are integrated.
  • EPC evolved Packet Core
  • TWAN Trusted Wireless Local Area Networks Access Network
  • the embodiment of the invention provides a data transmission method and device, which ensures service continuity and improves user experience while implementing offloading.
  • an embodiment of the present invention provides a method for transmitting data, including:
  • the base station acquires downlink data, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • the protocol data unit is offloaded to the user equipment via the wireless local area network via the offloading device.
  • the base station when the traffic distribution device is a WLAN access point WLAN AP, the base station sends the protocol data unit to a traffic distribution device, where the base station
  • the MAC address and the MAC address of the user equipment specifically including:
  • the base station Sending, by the base station, the protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the WLAN AP, where the MAC address of the user equipment is used by the WLAN AP to send the protocol data unit To the user equipment, the MAC address of the base station is used by the user equipment to determine that the protocol data unit is sent by the base station.
  • the base station when the traffic distribution device includes a wireless local area network access point WLAN AP and a wireless local area network access controller WLAN AC, the base station sends the information to the offloading device.
  • the protocol data unit, the MAC address of the base station, and the MAC address of the user equipment specifically include:
  • the base station sends the protocol data unit to the WLAN AC, the MAC address of the base station and the MAC address of the user equipment, where the WLAN AC sends the protocol data unit to the WLAN AP through a CAPWAP tunnel a MAC address of the base station and a MAC address of the user equipment, where the MAC address of the user equipment is used to send the protocol data unit to the user equipment, where a MAC address of the base station is used for the user equipment Determining that the protocol data unit is transmitted by the base station.
  • the base station sends, by using the WLAN AP or the WLAN AC, a bearer of the protocol data unit. Bearer ID.
  • the base station sends the The MAC address of the base station
  • the base station receives an address of a MAC of the user equipment that is sent by the user equipment.
  • the MAC address of the base station is a source address, where The MAC address of the user equipment is the target address.
  • the base station sends the The internet protocol IP address of the base station
  • the base station receives an IP address of the user equipment sent by the user equipment.
  • an embodiment of the present invention provides a method for transmitting data, including:
  • the base station acquires downlink data, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • the base station when the traffic distribution device includes a wireless local area network access point WLAN AP and a wireless local area network access controller WLAN AC, the base station sends the information to the power distribution device
  • the protocol data unit, the IP address of the base station, and the external network IP address of the user equipment specifically include:
  • the base station sends the protocol data unit to the WLAN AC, where the IP address of the base station and the external network IP address of the user equipment are used by the WLAN AC to send the protocol data unit to the WLAN AP,
  • the IP address of the base station, the internal network IP address of the user equipment, and the IP address of the base station is used by the user equipment to determine that the protocol data unit is sent by the base station, and the external network IP address of the user equipment
  • the WLAN AC determines that the protocol data unit is to be sent to the user equipment, and is used by the WLAN AC to acquire an intranet IP address of the user equipment.
  • the base station The local area network sends the following at least one data packet to the base station:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • the at least one data packet includes an intranet IP address of the user equipment.
  • the base station sends the IP address of the base station to the user equipment address.
  • the at least one data packet further includes a UDP port number of the user equipment and a UDP port of the base station Number, or including the TCP port number of the user equipment and the TCP port number of the base station.
  • an embodiment of the present invention provides a base station, including:
  • a receiving unit configured to acquire downlink data, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • a sending unit configured to send the protocol data unit to a traffic offloading device, where a media access control MAC address of the base station and a MAC address of the user equipment, a MAC address of the base station, and a MAC address of the user equipment are used by
  • the protocol data unit is offloaded to the user equipment via the wireless local area network via the offloading device.
  • the sending unit is specifically configured to:
  • the WLAN AP Sending, by the WLAN AP, the protocol data unit, a MAC address of the base station, and a MAC address of the user equipment, where the MAC address of the user equipment is used by the WLAN AP to send the protocol data unit to the a user equipment, the MAC address of the base station is used by the user equipment to determine that the protocol data unit is sent by the base station.
  • the sending unit is specifically used to:
  • the sending unit is further configured to:
  • the sending unit is further configured to Transmitting, by the user equipment, a MAC address of the base station;
  • the receiving unit is further configured to receive an address of a MAC of the user equipment that is sent by the user equipment.
  • the MAC address of the base station is a source address
  • the MAC address of the user equipment is a target address.
  • the sending unit is further configured to Transmitting, by the user equipment, an internet protocol IP address of the base station;
  • the receiving unit is further configured to receive an IP address of the user equipment that is sent by the user equipment.
  • an embodiment of the present invention provides a base station, including:
  • a receiving unit configured to acquire downlink data, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • a sending unit configured to send the protocol data unit to the offloading device, an internet protocol IP address of the base station, and an outer network IP address of the user equipment, configured to send the protocol data unit to the wireless local area network via the power distribution device Diverted to the user equipment.
  • the sending unit is specifically used to:
  • the WLAN AC sends the protocol data unit to the WLAN AP, the base station IP address, the intranet IP address of the user equipment, the IP of the base station
  • the address is used by the user equipment to determine that the protocol data unit is sent by the base station
  • the external network IP address of the user equipment is used by the WLAN AC to determine that the protocol data unit is to be sent to the user equipment, and is used by The WLAN AC acquires an intranet IP address of the user equipment.
  • the sending unit is further configured to:
  • the sending unit is further configured to:
  • the wireless local area network sends the following at least one data packet to the base station:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • the at least one data packet includes an intranet IP address of the user equipment.
  • the sending unit is further configured to send to the user equipment The IP address of the base station.
  • the at least one data packet further includes a UDP port number of the user equipment and a UDP of the base station The port number, or the TCP port number of the user equipment and the TCP port number of the base station.
  • Embodiments of the present invention provide a method and a device for transmitting data.
  • a base station In a data offloading process, a base station is used as a convergence point and a split point, and the base station is sensitive to quality changes of a network link of a wireless local area network, thereby ensuring service continuity and improving The user experience avoids the discontinuity of the service caused by the quality change of the network link of the WLAN when the EPC is used as the aggregation point and the distribution point.
  • FIG. 1 is a schematic diagram of a scenario for transmitting data according to the present invention
  • FIG. 2 is a diagram showing communication of each protocol stack in a base station, a UE, and a WLAN AP according to an embodiment of the present invention; Schematic diagram of the relationship;
  • FIG. 3 is a schematic diagram showing a configuration structure of each protocol stack in a base station, a UE, and a WLAN AP according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a method for transmitting data according to an embodiment of the present invention.
  • FIG. 5 is a block diagram showing an implementation of an embodiment of the present invention shown in FIG. 4;
  • FIG. 6 is a schematic diagram showing a configuration structure of each protocol stack in a base station, a UE, and a WLAN AP according to an embodiment of the present invention shown in FIG. 4;
  • FIG. 7 is a schematic diagram showing a configuration structure of each protocol stack in a base station, a UE, and a WLAN AP according to an embodiment of the present invention
  • FIG. 8 is a block diagram showing another implementation of an embodiment of the present invention shown in FIG. 4;
  • FIG. 9 is a schematic diagram showing a configuration structure of each protocol stack in a base station, a UE, a WLAN AP, and a WLAN AC according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram showing a configuration structure of each protocol stack in a base station, a UE, a WLAN AP, and a WLAN AC according to an embodiment of the present invention
  • FIG. 11 is a schematic flowchart of a method for transmitting data according to still another embodiment of the present invention.
  • Figure 12 is a block diagram showing another embodiment of the present invention shown in Figure 11;
  • FIG. 13 is a schematic diagram showing a configuration structure of each protocol stack in a base station, a UE, a WLAN AP, and a WLAN AC according to still another embodiment of the present invention shown in FIG. 11;
  • FIG. 14 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 16 is a schematic structural diagram of a base station according to still another embodiment of the present invention.
  • FIG. 17 is a schematic structural diagram of a base station according to still another embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • GPRS general packet radio service
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • a user equipment which may also be called a mobile terminal (Mobile Terminal), a mobile user equipment, or the like, may be accessed through a radio access network (for example, a Radio Access Network, RAN for short).
  • a radio access network for example, a Radio Access Network, RAN for short.
  • the user equipment can be a mobile terminal, such as a mobile telephone (or "cellular" telephone) and a computer with a mobile terminal, for example, can be portable, pocket, handheld, built-in Or in-vehicle mobile devices that exchange language and/or data with the radio access network, and are not limited by the present invention.
  • the base station may be a base station (Base Transceiver Station, BTS for short) in GSM or CDMA, or a base station (Node B) in WCDMA, or an evolved base station (eNB or e-Node B, evolved Node in LTE). B), the invention is not limited.
  • the base station also includes control nodes of various access network nodes, such as a Radio Network Controller (RNC) in UMTS, or a controller that manages multiple small base stations.
  • RNC Radio Network Controller
  • a wireless local area network access point (WLAN AP) needs to be set, and the wireless local area network
  • the access point may be, for example, an access point in Wireless Fidelity (WiFi), which is not limited by the present invention.
  • the WLAN AP in the embodiment of the present invention has two network architectures: an autonomous management architecture and a centralized management architecture.
  • the self-management architecture is also called the "fat" AP architecture.
  • the WLAN AP is responsible for user equipment access, user equipment disconnection, authority authentication, security policy enforcement, data forwarding, data encryption, network management, etc., and autonomously controls the configuration of the WLAN AP. wireless function.
  • the centralized management architecture is also called the "thin" AP architecture.
  • the management rights are generally concentrated on the Wireless Local Area Network Access Controller (WLAN AC).
  • the WLAN AC manages the IP address, authentication, and encryption of the user equipment.
  • the WLAN AP only has encryption, data forwarding, and radio frequency functions, and cannot work independently.
  • the Control and Provisioning of Wireless Access Points (CAPWAP) specification protocol is adopted between the WLAN AP and the WLAN AC.
  • the data to be transmitted to the UE is encapsulated by the WLAN AC and transmitted through the CAPWAP tunnel, and the data to be sent to the UE is forwarded through the WLAN AP.
  • the foregoing WLAN AP may be integrated with the base station. Because the embodiment of the present invention mainly relates to the data forwarding function of the WLAN AP, the two network architectures of the foregoing WLAN AP can be applied.
  • an autonomous management architecture that is, a "thin" AP architecture, and the present invention is not limited.
  • FIG. 1 is a schematic diagram of a scenario for transmitting data according to the present invention.
  • the scenario is directed to a multi-stream aggregation (MSA) communication method, and uses a wireless cellular network and a wireless local area network to provide high-speed and stable services to user equipment.
  • the WLAN AP is used as an example.
  • the base station can be used as the data distribution point and convergence point to transmit data (including uplink data or downlink data) of the UE through the WLAN AP.
  • the process is described in detail later.
  • the foregoing uplink data or the downlink data may be a protocol data unit (PDU) of a protocol layer in the air interface protocol stack of the wireless cellular network, which is not limited by the present invention.
  • PDU protocol data unit
  • the downlink data may include the first partial downlink data and the second partial downlink data.
  • the base station offloads the first part of the downlink data to the WLAN AP, and then sends the downlink data to the UE via the WLAN AP, or the base station offloads the first part of the downlink data to the WLAN AC, and then sends the data to the UE via the WLAN AP; the second part of the downlink data is directly transmitted by the base station through the wireless cell.
  • the network is sent to the UE, so that the transmission capability of the wireless cellular network and the WLAN network can be utilized simultaneously to achieve a higher downlink downlink transmission rate of the UE.
  • the uplink data may include the first part of the uplink data and the second part of the uplink data.
  • the UE offloads the first part of the uplink data to the WLAN AP, and then sends the uplink data to the base station via the WLAN AP, or the UE splits the first part of the uplink data to the WLAN AP, and then sends the data to the base station via the WLAN AC.
  • the second part of the uplink data is directly transmitted by the UE through the wireless cell.
  • the network is sent to the base station, so that the transmission capability of the wireless cellular network and the WLAN network can be utilized simultaneously to achieve a higher uplink uplink transmission rate of the UE.
  • the base station may transmit the data that needs to be offloaded to the WLAN AP or the WLAN AC, and send the data to the UE through the WLAN AP, or the WLAN AC and the WLAN AP; in the uplink transmission, the UE may divide the data that needs to be offloaded.
  • the data is sent to the WLAN AP and sent to the base station through the WLAN AP or the WLAN AC in combination with the WLAN AP. Therefore, in the present invention
  • a protocol stack for implementing communication between each other needs to be configured in the base station, the WLAN AC, and the WLAN AP.
  • a protocol stack for implementing communication between each other needs to be configured in the UE, the WLAN AC, and the WLAN AP.
  • the protocol stack of the WLAN AC can refer to the protocol stack of the base station or the WLAN AP, and is not specifically deployed.
  • a wireless local area network communication mode is adopted between the UE and the WLAN AP.
  • a protocol stack for implementing the wireless local area network communication for example, a WiFi protocol stack, may be provided. Since the UE and the WLAN AP adopt a wireless local area network communication mode, the time-frequency resource used by the wireless local area network communication method is different from the time-frequency resource used by the wireless cellular network communication between the UE and the base station, thereby being capable of offloading data transmitted between the base station and the UE. .
  • the communication mode between the WLAN AP and the base station, between the WLAN AP and the WLAN AC, or between the WLAN AC and the base station may be combined with the underlying protocol, such as an Ethernet transmission communication mode, to implement a WLAN AP and a base station, or a WLAN AC. Communication with the base station.
  • the underlying protocol such as an Ethernet transmission communication mode
  • FIG. 3 is a schematic diagram showing a configuration structure of each protocol stack in a base station, a UE, and a WLAN AP according to an embodiment of the present invention.
  • the configuration of the protocol stack in the base station, the WLAN AP, and the UE will be described below.
  • the base station has a base station protocol stack.
  • the base station protocol stack may have a first base station protocol stack and a second base station protocol stack, where the first base station protocol stack is configured to implement data processing for communication with the user equipment on the base station side, where the The two base station protocol stack is used to implement data processing for communication with the WLAN AP or the WLAN AC on the base station side.
  • the first base station protocol stack is only an exemplary description, and the present invention is not limited thereto.
  • Other protocol stacks capable of realizing communication between the base station and the user equipment on the base station (or the access network node) side are It falls within the scope of protection of the present invention.
  • the communication between the base station and the user equipment includes communication between the access network node and the user equipment capable of performing the function of the base station, for example, enabling communication between the relay node (RN) and the user equipment.
  • the protocol stack also falls within the scope of the present invention.
  • the second base station protocol stack a communication method such as Ethernet transmission can be used. It should be understood that the foregoing communication method is merely an exemplary description, and the present invention is not limited thereto, and the other can be implemented on the base station side.
  • the protocol stack of the communication between the WLAN AP and the base station is within the scope of the present invention.
  • the second base station protocol stack can be directly aggregated on at least one protocol layer of the first base station protocol stack by using an internal interface, which is not limited by the present invention.
  • the first base station protocol stack or the second base station protocol stack may include a user plane protocol stack, and may also include a user plane protocol stack and a control plane protocol stack, and the present invention is not particularly limited.
  • the first base station protocol stack or the second base station protocol stack is used as a user plane protocol stack as an example for description.
  • the first base station protocol stack may include the following protocol layers:
  • the PDCP layer is mainly used for compressing and decompressing, encrypting and decrypting information.
  • the RLC layer is mainly used to implement related functions of Automatic Repeat Request (ARQ), segmenting and cascading or segmenting information. And the cascading information is reorganized;
  • the MAC layer is mainly used for selecting a transport format combination, and implementing a related function of scheduling and hybrid automatic repeat request (HARQ);
  • the PHY layer is mainly used for the MAC layer and The upper layer provides information transmission services, and performs code modulation processing or demodulation decoding processing according to the selected transmission format combination.
  • the PDCP layer of the first base station protocol stack is aggregated by the second base station protocol stack as an example, but the present invention does not limit this. That is, in the embodiment of the present invention, the second base station protocol stack may be associated with any of the PDCP layer, the RLC layer, or the MAC layer of the first base station protocol stack, or even the IP layer above the PDCP layer. polymerization.
  • the protocol layer of the first base station protocol stack that aggregates the second base station protocol stack is referred to as an aggregation layer.
  • the aggregation layer of the base station protocol stack of this embodiment has the function of aggregating data and offloading data.
  • the aggregation layer may be used to aggregate uplink data transmitted by the user equipment between the WLAN AP and the base station and uplink data transmitted between the base station and the base station; or, for offloading: the aggregation layer may be used to offload the base station.
  • the aggregation layer may be: a PDCP layer, an RLC layer, a MAC layer, or an IP layer.
  • the corresponding aggregation layer entity may be a PDCP entity, an RLC entity, a MAC entity, or an IP entity, respectively.
  • the following takes the aggregation layer of the first base station protocol stack as an example:
  • the aggregation layer of the first base station protocol stack is used to aggregate the first part of the uplink data sent by the UE through the WLAN AP and the second part of the uplink data sent by the UE to the base station by using the wireless cellular network;
  • the aggregation layer of the first base station protocol stack is configured to split the data generated by the aggregation layer into the first part of the downlink data and the second part of the downlink data, and the base station processes the first part of the downlink data and sends the data to the UE through the WLAN AP, and the wireless cellular network is used. Sending a second part of downlink data to the UE.
  • the details will be described below.
  • the base station can obtain data from the core network and send it to the user equipment.
  • the base station can connect to the core network by using the S1 interface.
  • data can be obtained from the core network through the S1 interface, and then processed from high to low by protocol layer through the first base station protocol stack until the aggregation layer of the first base station protocol stack.
  • the first part of the downlink data output by the base station to the aggregation layer is processed by the second base station protocol stack, and the second base station protocol stack sends the processed first part of the downlink data to the WLAN AP, so that the WLAN AP can be combined with the wireless local area network communication.
  • the method sends the first part of downlink data to the UE or the WLAN AP to send the first part of downlink data to the UE via the WLAN AC.
  • the first base station protocol stack may also send the second part of the downlink data to the UE through the wireless cellular network.
  • the UE aggregates the first part of the downlink data and the second part of the downlink data directly received from the cellular network in an aggregation layer of the first user equipment protocol stack, and delivers the data to the first part, for example, after reordering the data of the two parts.
  • the higher layer of the aggregation layer of a user equipment protocol stack (if the aggregation layer is not the highest layer of the first user equipment protocol stack).
  • the PHY/MAC/RLC/PDCP is sequentially incremented.
  • the base station For the first part of the downlink data, for example, when the aggregation layer is the PDCP layer, the base station generates the downlink data from the S1 interface, and then generates the first part of the downlink data through the PDCP layer, and the first part of the downlink data is handed over to the second base station protocol stack for processing.
  • the second base station protocol stack offloads the first part of the downlink data to the WLAN AP or the WLAN AC.
  • the base station When the aggregation layer is the RLC, the base station obtains the downlink data from the S1 interface, processes the data through the PDCP layer, and then sends the data to the RLC layer.
  • the RLC layer generates a first part of downlink data, and hands the first part of the downlink data to the second base station protocol stack for the second base station protocol stack to offload the data to the WLAN AP or the WLAN AC.
  • the base station can receive the data sent by the user equipment and send the data to the core network.
  • the base station can connect to the core network by using the S1 interface, and the WLAN AP can receive the first part of the uplink data sent by the UE by using the wireless local area network communication mode. Subsequently, the WLAN AP can pass the communication protocol between it and the base station. The first part of the uplink data is sent to the base station; or the WLAN AP can send the first part of the uplink data to the WLAN AC through the communication protocol between the WLAN and the WLAN AC, and is sent by the WLAN AC to the base station.
  • the base station aggregates the first part of the uplink data and the second part of the uplink data sent by the UE directly received from the wireless cellular network in the aggregation layer of the first base station protocol stack, and submits the data, for example, after reordering the two parts of data.
  • the higher layer of the aggregation layer of the first base station protocol stack (if the aggregation layer is not the highest layer of the first base station protocol stack), and then the higher layer sends the processed data to the core network through the S1 interface.
  • the first base station protocol stack is the LTE protocol stack, and the PHY/MAC/RLC/PDCP is incremented in sequence.
  • the PDCP layer When the aggregation layer is the PDCP layer, the PDCP layer uplinks the data to the first part and directly from the wireless. The second part of the uplink data received by the cellular network is aggregated, and the base station sends the uplink data to the core network through the S1 interface.
  • the aggregation layer is the RLC layer
  • the RLC layer aggregates and processes the first part of the uplink data and the second part of the uplink data directly received from the wireless cellular network, and then delivers the data to the PDCP layer, and the PDCP layer processes the data through the S1 interface through the base station. Send to the core network.
  • the WLAN AP has a WLAN AP protocol stack.
  • the WLAN AP protocol stack may have a first WLAN AP protocol stack and a second WLAN AP protocol stack.
  • the first WLAN AP protocol stack is configured to implement data processing for communication with the base station on the WLAN AP side
  • the second WLAN AP protocol stack is configured to implement data processing for communication with the user equipment on the WLAN AP side.
  • the first WLAN AP protocol stack for example, Ethernet transmission, etc.
  • Ethernet transmission can be used.
  • the above communication manner is only an exemplary description, and the present invention is not limited thereto.
  • Other protocol stacks capable of implementing communication between the WLAN AP and the base station on the WLAN AP side fall within the protection scope of the present invention.
  • the first WLAN AP protocol stack may include a user plane protocol stack, and may also include a user plane protocol stack and a control plane protocol stack, and the present invention is not particularly limited. The following uses the first WLAN AP protocol stack as a user plane protocol stack as an example for description.
  • a protocol stack for implementing the wireless local area network communication for example, a WiFi protocol stack
  • WiFi protocol stack is merely exemplary, and the present invention is not limited thereto.
  • the WiFi protocol stack may include a Media Access Control (MAC) layer and a Physical Layer (PHY).
  • MAC Media Access Control
  • PHY Physical Layer
  • the main function of the MAC layer is to provide users with reliable data transmission on unreliable media, providing distributed coordination functions, centralized control access mechanisms, and encryption services, interception and avoidance, and power control.
  • the main function of the PHY layer is to perform a physical layer aggregation process to map data blocks to a suitable physical frame format, perform code modulation processing or demodulation decoding processing, and the like.
  • the WLAN AP obtains data from the base station and sends the data to the user equipment.
  • the WLAN AP can obtain data that the base station needs to send to the UE through the first WLAN AP protocol stack.
  • the WLAN AP can acquire data that the base station needs to send to the UE via the WLAN AC. Subsequently, the WLAN AP can transmit the data to the UE through wireless local area network communication, and then the process will be described in detail.
  • the WLAN AP obtains data from the user equipment and sends the data to the base station.
  • the WLAN AP can obtain data that the UE needs to send to the base station by using the WLAN communication mode.
  • the WLAN AP may transmit the data to the base station through the first WLAN AP protocol stack; or transmit the data to the base station via the WLAN AC, and then the process will be described in detail.
  • the user equipment has a user equipment protocol stack.
  • the user equipment protocol stack has a first user equipment protocol stack and a second user equipment protocol stack, where the first user equipment protocol stack is used in the The user equipment side implements data processing for communication with the base station.
  • the second user equipment protocol stack is configured to implement data processing for communication with the WLAN AP on the user equipment side.
  • the second user equipment protocol stack is connected to at least one protocol layer of the first user equipment protocol stack.
  • the first user equipment protocol stack is only an exemplary description, and the present invention is not limited thereto.
  • Other protocol stacks capable of realizing communication between the base station and the user equipment on the user equipment side fall within the protection scope of the present invention.
  • the communication between the base station and the user equipment includes communication between the access network node capable of performing the function of the base station and the user equipment.
  • a user equipment protocol stack capable of implementing communication between a relay node (RN) and a user equipment also falls within the scope of the present invention.
  • the foregoing first user equipment protocol stack may include the following protocol layers: a Packet Data Convergence Protocol (PDCP) layer, and a Radio Link Control (Radio Link Control). RLC) layer, media access control (Media Access Control (MAC) layer and Physical (PHY) layer.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Access Control
  • PHY Physical
  • the PDCP layer is mainly used for compressing and decompressing/encrypting and decrypting information
  • the RLC layer is mainly used to implement related functions of Automatic Repeat Request (ARQ), segmenting and cascading or segmenting information.
  • ARQ Automatic Repeat Request
  • the cascading information is reorganized;
  • the MAC layer is mainly used for selecting a transport format combination, and implementing a related function of scheduling and hybrid automatic repeat request (HARQ);
  • the PHY layer is mainly used for the MAC layer and
  • the upper layer provides information transmission services, and performs code modulation processing or demodulation decoding processing according to the selected transmission format combination.
  • a protocol stack for implementing wireless local area network communication for example, a WiFi protocol stack
  • WiFi protocol stack is merely exemplary, and the present invention is not limited thereto.
  • Other protocol stacks capable of implementing communication between the WLAN AP and the user equipment on the user equipment side are all within the scope of the present invention.
  • the WiFi protocol stack may include: a media access control MAC layer, a physical layer PHY.
  • the main function of the MAC layer is to provide users with reliable data transmission on unreliable media, providing distributed coordination functions, centralized control access mechanisms, and encryption services, interception and avoidance, and power control.
  • the main function of the physical layer is to perform a physical layer aggregation process to map data blocks to a suitable physical frame format, perform code modulation processing or demodulation decoding processing, and the like.
  • the PDCP layer of the first user equipment protocol stack is aggregated by using the second user equipment protocol stack as an example, but the present invention does not limit this. That is, in the embodiment of the present invention, the second user equipment protocol stack may be associated with any of the PDCP layer, the RLC layer, or the MAC layer of the first user equipment protocol stack, or even the IP layer above the PDCP layer. polymerization.
  • the protocol layer of the first user equipment protocol stack that aggregates the second user equipment protocol stack is referred to as an aggregation layer of the user equipment protocol stack.
  • the aggregation layer of the user equipment protocol stack of this embodiment has the function of aggregating data and offloading data.
  • the aggregation layer may be used to aggregate downlink data transmitted by the base station between the WLAN AP and the user equipment and downlink data transmitted between the user equipment through the wireless cellular network; or, for offloading: the aggregation layer may be used to offload the The uplink data transmitted by the user equipment between the WLAN AP and the base station, and the uplink data transmitted between the base station and the base station.
  • the aggregation layer may be: a PDCP layer, an RLC layer, a MAC layer, or an IP layer.
  • the corresponding aggregation layer entity may be a PDCP entity and an RLC, respectively. Entity, MAC entity, or IP entity.
  • the following takes the aggregation layer of the first user equipment protocol stack as an example:
  • the aggregation layer of the first user equipment protocol stack is used to split the data generated by the aggregation layer into the first part of the uplink data and the second part of the uplink data, and the UE processes the first part of the uplink data and sends the data to the base station through the WLAN AP. And transmitting the second part of the uplink data to the base station through the wireless cellular network.
  • the UE sends the first part of the uplink data to the WLAN AP first, and then sends the data to the base station via the WLAN AC.
  • the aggregation layer of the first user equipment protocol stack is used to aggregate the first part of downlink data sent by the base station through the WLAN AP and the second part of downlink data sent by the base station through the wireless cellular network.
  • the aggregation layer of the first user equipment protocol stack is used to aggregate the first part of downlink data sent by the base station through the WLAN AC and the WLAN AP and the second part of downlink data sent by the base station through the wireless cellular network.
  • the UE sends data to the base station through the WLAN AP.
  • the UE can process the data from the high to the low protocol layer through the first user equipment protocol stack until the aggregation layer of the first user equipment.
  • the first part of the uplink data that is output by the user equipment after being processed by the user layer is processed by the second user equipment protocol stack, and sent to the WLAN AP by the second user equipment protocol stack, where the WLAN AP sends the first part of the uplink data to the base station.
  • the user equipment sends the second part of the uplink data that is processed by the aggregation layer to the base station by using the wireless cellular network.
  • the base station aggregates the first part of the uplink data and the second part of the uplink data directly received from the wireless cellular network in an aggregation layer of the first base station protocol stack, and processes the same to the higher layer of the aggregation layer of the first base station protocol stack ( If the aggregation layer is not the highest layer of the first base station protocol stack).
  • the specific embodiment is similar to the base station side, and details are not described herein again.
  • the UE receives the data sent by the eNB through the WLAN AP, and the UE can receive the first part of the downlink data sent by the WLAN AP by using the WLAN communication mode.
  • the UE aggregates the first part of downlink data and the second part of downlink data directly received from the wireless cellular network in an aggregation layer of the first user equipment protocol stack, and then delivers the higher layer to the aggregation layer of the first user equipment protocol stack. (If the aggregation layer is not the highest layer of the first base station protocol stack).
  • the specific embodiment is similar to the base station side, and details are not described herein again.
  • Protocol data unit In a communication system, data transmitted between two adjacent protocol layers is referred to as a higher layer protocol data unit (PDU) in the adjacent protocol layer.
  • PDU protocol data unit
  • the data that the PDCP layer delivers to the RLC layer after being processed by header compression and encryption is called a PDCP PDU.
  • the RLC receives the data submitted by the MAC layer and reassembles and reorders the data, and the data unit that is delivered to the PDCP is also called the PDCP PDU.
  • the first part of the downlink protocol data unit output for the aggregation layer of the first base station protocol stack is referred to as a first protocol data unit.
  • the protocol data unit that offloads the base station to the user equipment via the offloading device is referred to as a first protocol data unit.
  • the protocol data unit that is offloaded by the user equipment to the base station via the offloading device becomes the second protocol data unit.
  • the bearer identifier is used to indicate the radio bearer to which the protocol data unit belongs.
  • the eNB may send the first protocol data unit and the bearer identifier of the radio bearer corresponding to the first protocol data unit to the UE via the WLAN AP.
  • the WLAN AP may send the UE to the UE. Forwarding the first protocol data unit and the corresponding bearer identifier.
  • the base station may send, by using the WLAN AC and the WLAN AP, the first protocol data unit and the bearer identifier corresponding to the radio bearer to which the first protocol data unit belongs.
  • the base station sends the first protocol data unit and the corresponding bearer identifier to the WLAN AC; the WLAN AC sends the received first protocol data unit and the corresponding bearer identifier to the WLAN AP; and the WLAN AP sends the received first identifier to the UE.
  • Protocol data unit and corresponding bearer identification Therefore, the UE may map the offloaded protocol data unit acquired from the WLAN to the bearer corresponding to the bearer identifier according to the received bearer identifier.
  • a possible implementation manner is: the base station instructs the UE to perform measurement on the surrounding WLAN AP according to the neighbor information list, and reports the measurement result to the base station. Then, the base station selects a WLAN AP for data offloading according to the measurement result (for example, the UE measures that the WiFi network signal corresponding to the WLAN AP is strong).
  • the base station determines to perform offloading by using the WLAN AP according to the network load and the distribution of the WLAN AP, for example, a WLAN AP is distributed in an area where the network is heavily loaded.
  • the network side service device is an AP
  • the user side terminal is The device is a STA
  • the network side service device is a base station
  • the user side terminal device is a UE.
  • the user-side terminal device may be referred to as a UE or an STA, and can receive services of two networks.
  • the following is collectively referred to as a UE.
  • the external network IP address can be understood as a globally unique network address allocated by the Internet Assigned Numbers Authority (IANA) or an equivalent address registration authority; the internal network IP address is independent of the public.
  • the address of the network IP address can be understood as the address assigned in the LAN.
  • the communication system may further include a WLAN AP, a WLAN AC, and a user equipment.
  • the base station and the user equipment may implement data offloading via the WLAN AP, or the WLAN AP and the WLAN AC may implement data offloading.
  • the method includes:
  • the base station acquires downlink data, where the downlink data includes a protocol data unit that is sent by the base station to the user equipment.
  • the base station sends the protocol data unit to the offloading device, the MAC address of the base station, and the MAC address of the user equipment.
  • the MAC address of the base station and the MAC address of the user equipment are used to offload the protocol data unit to the user equipment through the wireless local area network.
  • FIG. 5 it is an architectural diagram of the first implementation in the embodiment shown in FIG. 4, where the offloading device is a wireless local area network access point WLAN AP.
  • the base station can be directly connected to the wireless LAN interface of the WLAN AP by wire, or the base station and the WLAN AP belong to the same network segment or the same local area network in any manner.
  • the protocol stack in the base station for implementing data processing for communication with the WLAN AP on the base station side may include layer 1 (layer 1, L1). ), Layer 2 (L2) and the adaptation layer.
  • L2 can be a MAC layer and L1 can be a PHY layer.
  • the adaptation layer may generate first data, where the first data includes a first protocol data unit, a MAC address of the base station, and a MAC address of the UE, and the first data is sent to the WLAN AP. Therefore, the WLAN AP may encapsulate the first protocol data unit into the second data according to the MAC address of the UE in the first data, and then send the second data to the UE, where the second data includes the source address being the MAC address of the base station, and the target address. Is the MAC address of the UE.
  • the second data may also include The sending address is the MAC address of the WLAN AP, and the receiving address is the MAC address of the UE. After receiving the second data, the UE may learn, according to the MAC address of the base station, that the first protocol data unit is offloaded by the base station to the UE via the WLAN AP.
  • the first data and the second data may further include a radio bearer identifier corresponding to the first protocol data unit.
  • the protocol stack in the base station for implementing data processing for communication with the WLAN AP on the base station side may include layer 1, layer 2, and adaptation layer, and the uplink data is taken as an example, and the UE sends uplink data.
  • the methods include:
  • the UE acquires uplink data, where the uplink data includes a protocol data unit that the UE is to send to the base station;
  • the UE sends the foregoing protocol data unit to be sent to the base station to the WLAN AP, the MAC address of the base station and the MAC address of the user equipment, and the MAC address of the base station and the MAC address of the user equipment are used to offload the foregoing protocol data unit through the WLAN via the WLAN AP. To the user device.
  • the MAC address of the base station is used by the WLAN AP to send the foregoing protocol data unit to the base station
  • the MAC address of the user equipment is used by the base station to determine that the foregoing protocol data unit is sent by the UE.
  • the UE encapsulates the protocol data unit (hereinafter referred to as the second protocol data unit) to be sent to the base station in the third data and sends the data to the WLAN AP.
  • the third data may include a MAC address whose source address is the UE, and a target address is a MAC address of the base station.
  • the third data may further include: sending a MAC address of the UE, and receiving the MAC address of the WLAN AP.
  • the WLAN AP receives the third data sent by the UE, acquires the second protocol data unit, and determines, according to the target address of the third data, that the second protocol data unit needs to be forwarded to the base station.
  • the WLAN AP encapsulates the second protocol data unit into the fourth data and transmits it to the base station through the Ethernet.
  • the source address is filled with the MAC address of the UE
  • the target address is filled with the MAC address of the base station.
  • the base station receives the fourth data sent by the WLAN AP, acquires the second protocol data unit, and determines, according to the source address, the UE that sends the second protocol data unit.
  • the third data and the fourth data may further include a radio bearer identifier corresponding to the second protocol data unit.
  • the protocol stack in the base station for implementing data processing for communication with the WLAN AP on the base station side may include the first IP layer. , adaptation layer, L2, L1.
  • the first IP layer may generate an IP data packet, which may include an IP address of the base station and a first protocol data unit.
  • the first IP layer will have the IP number
  • the packet may be sent to the adaptation layer, and the adaptation layer may generate the first data, where the first data may include an IP data packet, a MAC address of the UE, and an address of a MAC of the base station, and send the first data to the WLAN AP.
  • the WLAN AP may send the first protocol data unit to the second data according to the MAC address of the UE in the first data, and then send the second data to the UE, where the second data may include the MAC address of the base station.
  • the destination address is the MAC address of the UE.
  • the second data may further include: sending a MAC address of the WLAN AP, and receiving the MAC address of the UE.
  • the UE may learn, according to the MAC address of the base station, that the first protocol data unit is offloaded by the base station to the UE via the WLAN AP.
  • the IP data packet may further include a wireless identifier corresponding to the first protocol data unit.
  • the base station may obtain an IP address of a base station used for implementing internal communication of the wireless local area network by using the following manner.
  • the IP address of the base station and the IP address of the WLAN AP belong to the same network segment by manual configuration or by obtaining the WLAN AC/Dynamic Host Configuration Protocol (DHCP) server.
  • the same network segment may refer to the IP address and the subnet mask of the base station and the obtained network address, and the IP address and the subnet mask of the WLAN AP are the same as the obtained network address.
  • the base station sends its own IP address to the user equipment.
  • the UE can also report its own IP address to the base station.
  • the protocol stack in the base station for implementing data processing for communication with the WLAN AP on the base station side may include a first IP layer, an adaptation layer, L2, L1, and the above row data as an example, the method include:
  • the UE acquires uplink data, where the uplink data includes a protocol data unit that the UE is to send to the base station;
  • Transmitting, by the UE, the protocol data unit to be sent to the base station, the MAC address of the base station, and the MAC address of the user equipment, the MAC address of the base station, and the MAC address of the user equipment are used to send the protocol data unit to be sent to the base station to the WLAN via the WLAN.
  • the AP is offloaded to the user equipment through the wireless LAN.
  • the MAC address of the base station is used by the WLAN AP to send the foregoing protocol data unit to the base station, and the MAC address of the user equipment is used by the base station to determine that the foregoing protocol data unit is sent by the UE.
  • the UE encapsulates the foregoing protocol data unit (hereinafter referred to as a second protocol data unit) to be sent to the base station in an IP packet through the first IP layer, and sends the data to the WLAN AP through the third data.
  • the IP packet includes the IP address of the UE.
  • the third data may further include that the source address is a MAC address of the UE, and the target address is a MAC address of the base station.
  • the third data may further include: sending a MAC address of the UE, and receiving the MAC address of the WLAN AP.
  • the WLAN AP receives the third data sent by the UE, acquires an IP packet, and determines, according to the target address of the third data, that the IP packet needs to be forwarded to the base station.
  • the WLAN AP encapsulates the IP packet into the fourth data and transmits it to the base station through the Ethernet.
  • the source address is filled with the MAC address of the UE
  • the target address is filled with the MAC address of the base station.
  • the base station receives the fourth data sent by the WLAN AP, acquires a second protocol data unit in the IP packet, and determines, according to the source address, the UE that sends the second protocol data unit.
  • the IP packet may further include a radio bearer identifier corresponding to the second protocol data unit.
  • FIG. 8 is an architectural diagram of a second implementation manner of the embodiment shown in FIG. 4, wherein the traffic distribution device is a wireless local area network access controller WLAN AC and a wireless local area network access point WLAN AP.
  • the base station may be directly connected to the WLAN AC through a wired network, or the WLAN AC may belong to the same network segment or the same local area network in any manner.
  • the base station sends the protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the offloading device, specifically:
  • the base station sends a protocol data unit, a MAC address of the base station, and a MAC address of the user equipment to the WLAN AC, where the WLAN AC sends the protocol data unit to the WLAN AP through the CAPWAP tunnel, the MAC address of the base station, and the MAC address of the user equipment.
  • the MAC address of the user equipment is used to send the protocol data unit to the user equipment
  • the MAC address of the base station is used by the user equipment to determine that the protocol data unit is sent by the base station.
  • a protocol stack in a base station for implementing data processing between the base station and the WLAN AC may include layer 1 (layer 1). , L1), Layer 2 (L2), and the adaptation layer.
  • L2 can be a MAC layer and L1 can be a PHY layer.
  • the adaptation layer may generate first data, and send the first data to the WLAN AC via L2 and L1.
  • the first data includes a first protocol data unit, a MAC address of the base station, and a MAC address of the UE. Therefore, the WLAN AC may send the first protocol data unit to the WLAN AP according to the MAC address of the UE in the first data.
  • the WLAN AC can learn the user equipment that the first protocol data unit needs to forward according to the MAC address of the user equipment. And, the WLAN AC sends and sends a second WLAN AP to the WLAN AP through the wireless access point control and configuration CAPWAP tunnel.
  • the second data includes a first protocol data unit, a MAC address of the base station, and a MAC address of the user equipment.
  • the WLAN AP learns the user equipment to be sent by the first protocol data unit according to the MAC address of the user equipment, and encapsulates the first protocol data unit into the third data, and sends the data to the user equipment, where the third data is included.
  • the source address may also be a MAC address of the base station, and the target address is a MAC address of the UE.
  • the third data may further include a MAC address whose sending address is a WLAN AP, and the receiving address is a MAC address of the UE.
  • the user equipment may learn, according to the MAC address of the base station, that the first protocol data unit is offloaded by the base station to the user equipment via the WLAN AP.
  • the first data, the second data, and the third data may further include a radio bearer identifier corresponding to the first protocol data unit.
  • the protocol stack in the base station for implementing data processing for communication with the WLAN AC on the base station side may include L1, L2, and an adaptation layer, and the uplink data is taken as an example, and the UE sends uplink data.
  • Methods include:
  • the UE acquires a protocol data unit PDU, where the PDU includes a protocol data unit to be sent by the UE to the base station;
  • the UE sends the protocol data unit to be sent to the base station, the MAC address of the base station, and the MAC address of the user equipment to the WLAN AP, and the WLAN AP sends the protocol data unit to the WLAN AC by using the WLAN AP to control and configure the CAPWAP tunnel.
  • the MAC address and the MAC address of the user equipment are used to offload the above protocol data unit to the base station via the WLAN AC via the WLAN AC.
  • the MAC address of the base station is used to send the protocol data unit to the base station
  • the MAC address of the user equipment is used by the base station to determine that the protocol data unit is sent by the user equipment.
  • the UE encapsulates the protocol data unit (hereinafter referred to as the second protocol data unit) to be sent to the base station in the fourth data and sends the data to the WLAN AP.
  • the fourth data may include a MAC address whose source address is the UE, and a target address is a MAC address of the base station.
  • the fourth data may further include that the sending address is a MAC address of the UE, and the receiving address is a MAC address of the WLAN AP.
  • the WLAN AP receives the fourth data sent by the UE, acquires the second protocol data unit, and determines, according to the target address of the fourth data, that the second protocol data unit needs to be forwarded to the base station.
  • the WLAN AP encapsulates the second protocol data unit into the fifth data, and then sends the data to the WLAN AC through the CAPWAP tunnel.
  • the source address is filled in the MAC address of the UE, and the target address is filled in.
  • the WLAN AC receives the fifth data sent by the WLAN AP, acquires the second protocol data unit, and determines, according to the target address of the fifth data, that the second protocol data unit needs to be forwarded to the base station.
  • the WLAN AC encapsulates the second protocol data unit into the sixth data, and then sends the data to the base station through the CAPWAP tunnel.
  • the source address is filled with the MAC address of the UE
  • the target address is filled with the MAC address of the base station.
  • the base station receives the sixth data sent by the WLAN AC, acquires the second protocol data unit, and determines the user equipment that sends the second protocol data unit according to the source address.
  • the fourth data, the fifth data, and the sixth data may further include a radio bearer identifier corresponding to the second protocol data unit.
  • a protocol stack in a base station for implementing data processing for communication with the WLAN AC on the base station side may include a first IP layer.
  • the first IP layer may generate an IP data packet, which may include an IP address of the base station and a first protocol data unit.
  • the first IP layer sends the IP data packet to the adaptation layer, which can generate the first data and send it to the WLAN AC via L2 and L1.
  • the first data may include an IP data packet, a MAC address of the UE, and an address of a MAC of the base station. Therefore, the WLAN AC can learn that the first protocol data unit needs to be sent to the UE through the WLAN AP according to the MAC address of the UE in the received first data.
  • the WLAN AC encapsulates the first protocol data unit into the second data and sends the data to the WLAN AP via the CAPWAP tunnel, where the second data includes the MAC address of the base station and the target address is the MAC address of the UE.
  • the WLAN AP After receiving the second data sent by the WLAN AC, the WLAN AP obtains the first protocol data unit, and determines that the first protocol data unit needs to be forwarded to the UE according to the target address of the second data. Then, the WLAN AP encapsulates the first protocol data unit into the third data and forwards it to the UE.
  • the third data may include a MAC address whose source address is a base station, and a target address is a MAC address of the UE.
  • the third data may also include a MAC address whose sending address is a WLAN AP, and the receiving address is a MAC address of the UE.
  • the UE may learn, according to the MAC address of the base station, that the first protocol data unit is offloaded by the base station to the UE via the WLAN AP.
  • the IP data packet may further include a radio bearer identifier corresponding to the first protocol data unit.
  • the base station can obtain the wireless local area by using the following method.
  • the IP address of the base station for intranet communication For example, the IP address of the base station and the IP address of the WLAN AC belong to the same network segment by manual configuration or by obtaining the WLAN AC/Dynamic Host Configuration Protocol (DHCP) server.
  • DHCP Dynamic Host Configuration Protocol
  • the base station sends its own IP address to the user equipment.
  • the UE can also report its own IP address to the base station.
  • the protocol stack in the base station for implementing data processing for communication with the WLAN AC on the base station side may include a first IP layer, an adaptation layer, L2, L1, and the above row data as an example, the UE
  • the method for transmitting uplink data to a base station includes:
  • the UE acquires a protocol data unit PDU, where the PDU includes a protocol data unit to be sent by the UE to the base station;
  • the UE sends the protocol data unit to be sent to the base station, the MAC address of the base station, and the MAC address of the user equipment to the WLAN AP, and the WLAN AP sends the protocol data unit to the WLAN AC by using the WLAN AP to control and configure the CAPWAP tunnel.
  • the MAC address and the MAC address of the user equipment are used to offload the above protocol data unit to the base station through the wireless local area network.
  • the MAC address of the base station is used to send the protocol data unit to the base station, and the MAC address of the user equipment is used by the base station to determine that the protocol data unit is sent by the UE.
  • the UE encapsulates the protocol data unit (hereinafter referred to as the second protocol data unit) to be sent to the base station in the IP packet through the first IP layer, and sends the data to the WLAN AP through the fourth data.
  • the IP data packet includes the IP address of the UE.
  • the fourth data may further include that the source address is a MAC address of the UE, and the target address is a MAC address of the base station.
  • the fourth data may further include: sending a MAC address of the UE, and receiving the MAC address of the WLAN AP.
  • the WLAN AP receives the fourth data unit sent by the UE, acquires an IP packet, and determines, according to the target address of the fourth data, that the IP packet needs to be forwarded to the base station.
  • the WLAN AP encapsulates the IP packet into the fifth data, and sends the fifth data to the WLAN AC via the CAPWAP tunnel, where the fifth data includes the IP data packet, the target address is the MAC address of the base station, and the source address is the MAC address of the UE.
  • the WLAN AC learns that the IP data packet needs to be forwarded to the base station according to the target address in the fifth data, and encapsulates the IP data packet into the sixth data, and sends the data to the base station through the Ethernet.
  • the source address is filled with the MAC address of the UE
  • the target address is filled with the MAC address of the base station.
  • the base station receives the sixth data sent by the WLAN AC, acquires the second protocol data unit in the IP packet, and determines the UE that sends the second protocol data unit according to the source address.
  • the IP data packet may further include a radio bearer identifier corresponding to the second protocol data unit.
  • the foregoing includes a protocol data unit to be sent to the user equipment, where the source address is a MAC address of the base station, and the data or IP data packet whose destination address is the MAC address of the user equipment further includes The bearer identifier corresponding to the protocol data unit to be sent to the user equipment is used to enable the user equipment to map the received protocol data unit to the corresponding bearer.
  • the foregoing includes a protocol data unit to be sent to the base station, a source address is a MAC address of the user equipment, and a data or an IP data packet whose target address is a MAC address of the base station further includes:
  • the bearer identifier corresponding to the protocol data unit sent to the base station is used to enable the base station to map the received protocol data unit to the corresponding bearer.
  • the base station sends the MAC address of the base station to the user equipment, and the base station receives the address of the MAC address of the user equipment sent by the user equipment.
  • the base station can inform the UE of its own MAC address through radio resource control (RRC) signaling.
  • RRC radio resource control
  • the UE can also report its own MAC address to the base station.
  • the MAC address of the base station is the source address
  • the MAC address of the user equipment is the target address.
  • the MAC address of the base station is the target address
  • the MAC address of the user equipment is the source address.
  • a CAPWAP layer may be configured between the adaptation layer of the base station and the L2, and the protocol data unit is transmitted between the base station and the WLAN AP, or between the base station and the WLAN AC through the CAPWAP tunnel.
  • a UDP layer and a second IP layer corresponding to the WLAN AC may be disposed between the CAPWAP layer and the L2 of the base station.
  • the UDP layer of the base station is used to generate the UDP port number of the WLAN AC
  • the source port number is the UDP port number of the base station
  • the second IP layer of the base station is used to generate the IP address of the WLAN AC.
  • the source IP address is the IP address of the base station.
  • the UDP layer of the base station is used to obtain the UDP port number of the base station
  • the source port number is the UDP port number of the WLAN AC
  • the second IP layer of the base station is used to obtain the IP address of the base station.
  • the source IP address is the IP address of the WLAN AC.
  • the method for transmitting data provided by the embodiment of the present invention is used by a base station as a convergence point and a distribution point, and the base station is sensitive to the quality change of the network link of the wireless local area network, thereby ensuring service continuity and improving the user body.
  • the test avoids the discontinuity of the service caused by the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the distribution point.
  • FIG. 11 is a schematic flow chart showing a method of transmitting downlink data according to still another embodiment of the present invention, which is performed by a base station in a communication system.
  • the communication system may further include a WLAN AP, a WLAN AC, and a user equipment, and the data is offloaded between the base station and the user equipment via the WLAN AC and the WLAN AP.
  • the method includes:
  • the base station acquires downlink data, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • the base station sends the protocol data unit to the offloading device, the Internet Protocol IP address of the base station, and the external network IP address of the user equipment, for distributing the protocol data unit to the user equipment through the wireless local area network via the offloading device.
  • the offloading device is a WLAN AC and a WLAN AP.
  • the base station can be directly connected to the wireless WAN interface of the WLAN AC by wire, or the base station and the WLAN AC belong to the same network segment by any means.
  • the base station may also be connected to the WLAN AC's wireless WAN interface through a router, and the base station and the WLAN AC may be connected, but the base station and the WLAN AC may belong to different network segments.
  • the base station sends the protocol data unit to the WLAN AC, specifically:
  • the user equipment determines that the protocol data unit is sent by the base station, and the external network IP address of the user equipment is used by the WLAN AC to determine that the protocol data unit is to be sent to the user equipment, and is used by the WLAN AC to acquire the user equipment.
  • Intranet IP address is used by the WLAN AC to determine that the protocol data unit is to be sent to the user equipment, and is used by the WLAN AC to acquire the user equipment.
  • the external network IP address of the user equipment is used by the WLAN AC to obtain the MAC address of the user equipment, so as to determine the user equipment that receives the protocol data unit.
  • the protocol data unit to be transmitted to the user equipment is hereinafter referred to as a first protocol data unit.
  • a protocol stack used by a base station to implement data communication with a WLAN AC on the base station side may include IP layers, L2 and L1.
  • L2 can be a MAC layer and L1 can be a PHY layer.
  • the IP layer may generate a first IP data packet, where the first IP data packet may include an IP address of the base station, an external network IP address of the user equipment, and a first protocol data unit. IP layer will be the first An IP packet is sent to L2 and sent to the WLAN AC via L2 and L1.
  • the WLAN AC converts the external network IP address of the UE into the intranet IP address of the UE, and sends the first data to the WLAN AP via the CAPWAP tunnel.
  • the first data includes a second IP data packet, the source address is a MAC address of the WLAN AC, and the target address is a MAC address of the UE.
  • the second IP data packet includes a first protocol data unit, an IP address of the base station, and an intranet IP address of the user equipment.
  • the WLAN AP learns that the second IP data packet needs to be sent to the UE according to the target address in the received first data, and generates second data and sends the data to the UE.
  • the second data may include a second IP data packet, the source address is a MAC address of the WLAN AC, and the target address is a MAC address of the UE.
  • the second data may further include: sending a MAC address of the WLAN AP, and receiving the MAC address of the UE.
  • the UE may learn, according to the IP address of the base station, the MAC address of the WLAN AP, and the MAC address of the WLAN AC, that the first protocol data unit is offloaded by the base station to the UE via the WLAN AC and the WLAN AP.
  • the second IP data packet is the converted first IP data packet, that is, the external network IP address of the UE in the first IP data packet is converted into the internal network IP address of the UE via the WLAN AC.
  • the first IP data packet or the second IP data packet may further include a radio bearer identifier corresponding to the first protocol data unit.
  • the base station sends its own IP address to the user equipment.
  • the base station may send its own IP address to the UE through RRC signaling.
  • the UE may send uplink data to the base station by using a wireless local area network, so that the base station obtains an external network IP address of the UE.
  • the base station instructs the user equipment to send the following at least one type of data packet to the base station through the wireless local area network:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • the at least one type of data packet includes an intranet IP address of the user equipment.
  • the at least one data packet further includes a UDP/TCP port number of the user equipment and a UDP/TCP port number of the base station.
  • the UDP/TCP port number can further distinguish different UEs on the premise that the external network IP address of the UE is the same.
  • the base station acquiring the external network IP address of the UE can be implemented by referring to the following manner:
  • the base station may perform the WLAN AP selection according to the measurement report of the UE, and send the selected WLAN AP information to the UE by using an RRC reconfiguration message.
  • the RRC reconfiguration message includes at least one of the following: an identifier of the selected WLAN AP, an IP address of the base station, UDP port number and indication information of the base station.
  • the UE accesses the specified WLAN AP according to the identifier of the selected WLAN AP, and according to the indication information, after accessing the WLAN AP, sends the following any data packet to the base station through the WLAN AP and the WLAN AC through the wireless local area network: TCP packet/UDP packet/IP Package (hereinafter referred to as the first data packet).
  • the source port number of the first data packet is a port number of the UE (such as a TCP port number or a UDP port number)
  • the destination port number is a port number of the base station (such as a TCP port number or a UDP port number)
  • the IP source address is The intranet IP address and IP destination address of the UE are the IP addresses of the base station.
  • the WLAN AP extracts the first data packet from the third data sent by the UE, and learns that the base station does not belong to the same network segment as the WLAN AP according to the IP target address, and encapsulates the first data packet into the fourth data. Sent to the WLAN AC via Ethernet. Wherein, in the fourth data, the source address is filled with the MAC address of the UE, and the target address is filled with the MAC address of the WLAN AC.
  • the WLAN AC learns the UE that sent the first data packet according to the source address in the fourth data packet, and converts the external network IP address of the UE into the internal network IP address of the UE.
  • the WLAN AC can learn that the first data packet needs to be sent to the base station according to the IP target address, and then send the converted first IP data packet to the base station through the Ethernet, so that the base station learns the external network IP address of the UE in the WLAN network. .
  • the identifier of the WLAN AP may be a Basic Service Set Identifier (BSSID) or a Service Set Identifier (SSID).
  • BSSID Basic Service Set Identifier
  • SSID Service Set Identifier
  • a basic service set is a basic component of a WLAN network, and is usually composed of one access point AP and multiple stations (Stations, referred to as STAs).
  • the Extended Service Set (ESS) is composed of multiple BSSs.
  • Each BSS has a unique identifier (ID), that is, a BSS ID or a BSS identifier. Since the BSS usually has an access point AP, the BSS identifier is usually an identifier of the access point AP, and may be, for example, a Media Access Control (MAC) address of the AP.
  • ID unique identifier
  • MAC Media Access Control
  • the protocol stack used by the base station to implement data communication with the WLAN AC on the base station side may include an IP layer, L2 and L1, and the above row data is taken as an example, and the method for the UE to send uplink data to the base station include:
  • the UE acquires a protocol data unit PDU, where the PDU includes a protocol data unit to be sent by the UE to the base station;
  • the UE sends the protocol data unit to be sent to the base station to the offloading device, and the IP address of the base station and the internal network IP address of the user equipment are used to offload the protocol data unit to be sent to the base station to the base station through the wireless local area network.
  • the sending, by the UE, the protocol data unit to be sent to the base station to the offloading device specifically includes:
  • the UE sends a second protocol data unit, the IP address of the base station, and the internal network IP address of the user equipment to the WLAN AP, and is configured to offload the second protocol data unit to the user equipment by using the wireless local area network, where the IP address of the base station and the user equipment are An intranet IP address, configured to offload the foregoing second protocol data unit to the base station through the WLAN via the WLAN AC.
  • the internal network IP address of the user equipment is used by the WLAN AC to determine that the data unit of the protocol is sent by the UE, and is converted into an external network IP address of the corresponding user equipment according to the internal network IP address, and then the protocol data unit is passed.
  • the external network IP address of the user equipment is sent to the base station, and the base station determines, according to the external network IP address of the user equipment, that the protocol data unit is sent by the UE.
  • the UE encapsulates the protocol data unit (hereinafter referred to as the second protocol data unit) to be sent to the base station in the IP packet through the IP layer, and sends the data to the WLAN AP through the fifth data.
  • the IP data packet further includes an IP address of the base station whose source IP address is the UE and an IP address of the base station.
  • the fifth data may further include that the source address is a MAC address of the UE, and the target address is a MAC address of the WLAN AC.
  • the fifth data may further include: sending a MAC address of the UE, and receiving the MAC address of the WLAN AP.
  • the WLAN AP receives the fifth data sent by the UE, obtains an IP packet, and determines that the IP packet needs to be sent to the WLAN AC according to the target address of the fifth data. Then, the WLAN AP encapsulates the IP packet into the sixth data and sends it to the WLAN AC through the CAPWAP tunnel.
  • the sixth data further includes a MAC address whose target address is WLAN AC, and the source address is a MAC address of the UE.
  • the WLAN AC converts the internal network IP address of the UE into an external network IP address according to the obtained IP packet, and learns that the second protocol data unit needs to be sent to the base station according to the IP target address in the IP packet. Subsequently, the WLAN AC transmits the converted IP packet to the base station via Ethernet.
  • the base station receives the IP packet sent by the WLAN AC, acquires the second protocol data unit in the IP packet, and determines the UE that sends the second protocol data unit according to the IP source address.
  • the following behavior example includes: the protocol data unit to be sent to the user equipment and the IP packet of the internal network IP address of the user equipment; or the protocol data unit and the user to be sent to the user equipment.
  • the IP packet of the external IP address of the device also includes the association to be sent to the user equipment.
  • the bearer identifier corresponding to the data unit is configured to enable the user equipment to map the received protocol data unit to the corresponding bearer.
  • the IP packet that includes the user equipment internal network IP address or the user equipment external network IP address further includes a bearer identifier corresponding to the protocol data unit to be sent to the base station, where The base station maps the received protocol data unit to the corresponding bearer.
  • the base station sends the MAC address of the base station to the user equipment, and the base station receives the address of the MAC address of the user equipment sent by the user equipment.
  • the base station can inform the UE of its own MAC address through radio resource control (RRC) signaling.
  • RRC radio resource control
  • the UE can also report its own MAC address to the base station.
  • the method for transmitting data provided by the embodiment of the present invention is used by the base station as a convergence point and a distribution point.
  • the base station is sensitive to the quality change of the network link of the wireless local area network, ensures service continuity, improves user experience, and avoids EPC as a convergence point and a split point.
  • the service is not sensitive to the quality change of the network link of the WLAN.
  • the communication system can include a base station, a WLAN AP; further, the communication system can also include a WLAN AC.
  • the base station and the user equipment implement offloading via a WLAN AP, or implement data splitting through mutual participation of the WLAN AP and the WLAN AC.
  • the method can be based on the architecture of Figure 5 or Figure 8, including:
  • the user equipment receives the protocol data unit sent by the base station and is offloaded to the user equipment through the wireless local area network via the offloading device, the address of the MAC of the base station, and the MAC address of the user equipment.
  • the MAC address of the foregoing base station and the MAC address of the user equipment are used to send the protocol data unit to the user equipment via the offloading device.
  • the base station transmits downlink data or related content of the user equipment to send uplink data, such as data, IP packet or protocol data unit generation, transmission, etc., refer to FIG. 4, FIG. 5, and FIG. The description of FIG. 7 will not be repeated here.
  • the base station transmits downlink data or related content that the user equipment sends uplink data, such as protocol data unit, IP packet or data generation and transmission, etc., and may refer to FIG. 4 and FIG. 8 .
  • the descriptions of FIG. 9 and FIG. 10 are not described herein again.
  • the method for transmitting data provided by the embodiment of the present invention is used by a base station as a convergence point and a split point, and the base station Sensitive to the quality change of the network link of the WLAN, ensuring service continuity, improving the user experience, and avoiding the business discontinuity caused by the quality change of the network link of the WLAN when the EPC is used as the convergence point and the distribution point .
  • the following is a method for transmitting downlink data according to another embodiment of the present invention.
  • the method is performed by a user equipment in a communication system, and the communication system may further include a base station, a WLAN AP, and a WLAN AC, and the base station and the user equipment are connected to the WLAN.
  • the AP and the WLAN AC implement data offloading.
  • the method can be based on the architecture of Figure 12, including:
  • the user equipment receives the protocol data unit that is sent by the base station and is offloaded to the user equipment through the wireless local area network, the IP address of the base station, and the external network IP address of the user equipment.
  • the IP address of the foregoing base station and the external network IP address of the user equipment are used to send the protocol data unit to the user equipment via the offloading device.
  • the base station transmits the downlink data or the related content of the user equipment to send the uplink data, such as the generation and transmission of the protocol data unit, the data or the IP packet, and the like, and may refer to FIG. 11 and FIG. The description of FIG. 13 will not be repeated here.
  • the UE may also report its own IP address to the base station.
  • the user equipment may receive an indication of the base station, where the indication is used to indicate that the user equipment sends any of the following data packets to the base station through the wireless local area network:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • Any of the above data packets includes the intranet IP address of the user equipment.
  • any of the foregoing data packets further includes a UDP/TCP port number of the user equipment and a UDP/TCP port number of the base station.
  • the UDP/TCP port number can distinguish different user equipments on the premise that the external network IP address of the UE is the same.
  • For the base station to obtain the external network IP address of the UE refer to the description of the embodiment of the base station, and details are not described herein again.
  • the base station serves as a convergence point and a branch point, and the base station is sensitive to the quality change of the network link of the wireless local area network, thereby ensuring service continuity, improving user experience, and avoiding
  • EPC is used as a convergence point and a distribution point, the service is not sensitive to the quality change of the network link of the wireless local area network.
  • a method of transmitting downlink data according to still another embodiment of the present invention, which is performed by a traffic shunting device in the communication system, is shown below.
  • the communication system may further include a base station, a user equipment; further, the offloading device may be a WLAN AP, or further include a WLAN AC. Between the base station and the user equipment The offloading is implemented via the WLAN AP, or the data is offloaded through the participation of the WLAN AP and the WLAN AC.
  • the method can be based on the architecture of Figure 5 or Figure 8, including:
  • the offloading device receives the protocol data unit sent by the base station, the MAC address of the base station, and the MAC address of the user equipment;
  • the offloading device sends the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment.
  • the MAC address of the base station and the MAC address of the user equipment may be used to send the foregoing protocol data unit to the user equipment via the offloading device.
  • the method when the offloading device is a WLAN AP, the method includes:
  • the WLAN AP receives the protocol data unit sent by the base station, the MAC address of the base station, and the MAC address of the user equipment;
  • the WLAN AP sends the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment.
  • the method when the offloading device is a WLAN AP and a WLAN AC, the method includes:
  • the WLAN AP receives the protocol data unit sent by the WLAN AC, the MAC address of the base station, and the MAC address of the user equipment;
  • the WLAN AP sends the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment, where the protocol data unit, the MAC address of the base station, and the MAC address of the user equipment are sent by the base station to the WLAN AC.
  • the method includes:
  • the WLAN AC receives the protocol data unit sent by the base station, the MAC address of the base station, and the MAC address of the user equipment;
  • the WLAN AC sends the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the WLAN AP, and is used by the WLAN AP to send the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment. To the user device.
  • the WLAN AP receives the bearer identifier corresponding to the bearer protocol data unit sent by the base station, and the WLAN AP sends the bearer identifier corresponding to the bearer protocol data unit to the user equipment.
  • the WLAN AC receiving base The bearer identifier corresponding to the bearer protocol data unit sent by the station, and the WLAN AC sends the bearer identifier corresponding to the bearer protocol data unit to the WLAN AP.
  • the WLAN AP receives the bearer identifier corresponding to the bearer protocol data unit sent by the WLAN AC, and the WLAN AP sends the bearer identifier corresponding to the bearer protocol data unit to the user equipment.
  • the offloading device is a WLAN AP
  • the downlink data of the base station or the related content of the uplink data of the user equipment such as the generation, transmission, and the like of the protocol data unit, may be referred to by FIG. 4, FIG. 5, FIG.
  • the description of Figure 7 will not be repeated here.
  • the offloading device is a WLAN AC and a WLAN AP
  • the downlink data of the base station or the related content of the uplink data of the user equipment such as protocol data unit, data or IP packet generation, transmission, etc.
  • the WLAN AP and the WLAN AC Reference may be made to the descriptions of FIG. 4, FIG. 8, FIG. 9, and FIG. 10, and details are not described herein again.
  • the base station serves as a convergence point and a branch point, and the base station is sensitive to the quality change of the network link of the wireless local area network, thereby ensuring service continuity, improving user experience, and avoiding
  • EPC is used as a convergence point and a distribution point, the service is not sensitive to the quality change of the network link of the wireless local area network.
  • the communication system may further include a base station, a user equipment; further, the offloading device may be a WLAN AP, or further include a WLAN AC.
  • the base station and the user equipment implement offloading via a WLAN AP, or implement data splitting through mutual participation of the WLAN AP and the WLAN AC.
  • the method can be based on the architecture of Figure 12, including:
  • the offloading device receives the protocol data unit sent by the base station, the IP address of the base station, and the external network IP address of the user equipment;
  • the offloading device sends the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment.
  • the IP address of the base station and the external network IP address of the user equipment are used to send the protocol data unit to the user equipment via the offloading device.
  • the method includes:
  • the WLAN AC receives the protocol data unit sent by the base station, the IP address of the base station, and the external network IP address of the user equipment;
  • the WLAN AC converts the received external IP address of the user equipment into an intranet IP address of the user equipment
  • the WLAN AC sends the foregoing protocol data unit, the IP address of the base station, and the intranet IP address of the user equipment to the WLAN AP, and is used by the WLAN AP to receive the foregoing protocol data unit, the IP address of the base station, and the intranet IP address of the user equipment. Send to user device.
  • the WLAN AC obtains the MAC address of the user equipment according to the received external network IP address of the user equipment.
  • the method includes:
  • the WLAN AP receives the protocol data unit sent by the WLAN AC, the IP address of the base station, and the intranet IP address of the user equipment;
  • the WLAN AP sends the received protocol data unit, the IP address of the base station, and the intranet IP address of the user equipment to the user equipment.
  • the IP address of the protocol data unit and the base station is sent by the base station to the WLAN AC, and the internal network IP address of the user equipment is converted by the WLAN AC according to the external network IP address of the user equipment sent by the base station.
  • the WLAN AC receives the bearer identifier corresponding to the bearer protocol data unit sent by the base station, and the WLAN AC sends the bearer identifier corresponding to the bearer protocol data unit to the WLAN AP.
  • the WLAN AP receives the bearer identifier corresponding to the bearer protocol data unit sent by the WLAN AC, and the WLAN AP sends the bearer identifier corresponding to the bearer protocol data unit to the user equipment.
  • the offloading device is a WLAN AC and a WLAN AP
  • the downlink data of the base station or the related content of the uplink data of the user equipment such as protocol data unit, data or IP packet generation, transmission, etc.
  • the WLAN AC and the WLAN AP Reference may be made to the descriptions of FIG. 11 , FIG. 12 and FIG. 13 , and details are not described herein again.
  • the UE may also report its own IP address to the base station.
  • the user equipment may receive an indication of the base station, where the indication is used to indicate that the user equipment sends any of the following data packets to the base station through the wireless local area network:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • Any of the above data packets includes the intranet IP address of the user equipment.
  • any of the foregoing data packets further includes a UDP/TCP port number of the user equipment and a UDP/TCP port number of the base station.
  • the UDP/TCP port number can distinguish different user equipments on the premise that the external network IP address of the UE is the same.
  • For the base station to obtain the external network IP address of the UE refer to the description of the embodiment of the base station, and details are not described herein again.
  • the base station serves as a convergence point and a branch point, and the base station is sensitive to the quality change of the network link of the wireless local area network, thereby ensuring service continuity, improving user experience, and avoiding
  • EPC is used as a convergence point and a distribution point, the service is not sensitive to the quality change of the network link of the wireless local area network.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • a flow splitting method according to an embodiment of the present invention is described in detail above with reference to FIGS. 1 through 13, and a base station according to an embodiment of the present invention will be described below with reference to FIGS. 14 through 17.
  • FIG. 14 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station 1400 provided by the embodiment of the present invention includes a receiving unit 1401 and a sending unit 1402.
  • the receiving unit 1401 is configured to acquire downlink data, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • the sending unit 1402 is configured to send, to the traffic distribution device, a protocol data unit, a media access control MAC address of the base station, and a MAC address of the user equipment, where the MAC address of the base station and the MAC address of the user equipment are used to pass the protocol data unit to the protocol through the wireless device.
  • the LAN is offloaded to the user equipment.
  • the sending unit 1402 is specifically configured to:
  • the base station sends.
  • the sending unit 1402 is specifically configured to:
  • the WLAN AC transmits the protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the WLAN AP through the wireless access point control and configuration CAPWAP tunnel.
  • the MAC address is used to send the protocol data unit to the user equipment, and the MAC address of the base station is used by the user equipment to determine that the protocol data unit is sent by the base station.
  • the sending unit 1402 is further configured to:
  • the sending unit 1402 is further configured to send, to the user equipment, a MAC address of the base station;
  • the receiving unit is further configured to receive an address of a MAC of the user equipment sent by the user equipment.
  • the MAC address of the base station is a source address
  • the MAC address of the user equipment is a target address
  • the sending unit 1402 is further configured to send an Internet Protocol IP address of the base station to the user equipment
  • the receiving unit 1401 is further configured to receive an IP address of the user equipment sent by the user equipment.
  • the base station provided by the embodiment of the present invention can perform the technical solution of the foregoing method embodiment, and the implementation principle thereof is similar, and details are not described herein again in this embodiment.
  • the base station provided by the embodiment of the present invention serves as a convergence point and a distribution point.
  • the base station is sensitive to the quality change of the network link of the wireless local area network, ensures service continuity, improves user experience, and avoids EPC as a convergence point and a distribution point.
  • the service is not sensitive to the quality change of the network link of the WLAN.
  • FIG. 15 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station 1500 provided by the embodiment of the present invention includes: a receiving unit 1501, and a sending unit 1502.
  • the receiving unit 1501 is configured to acquire downlink data, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • the sending unit 1502 is configured to send the protocol data unit to the offloading device, the Internet Protocol IP address of the base station, and the external network IP address of the user equipment, for offloading the protocol data unit to the user equipment through the wireless local area network via the offloading device.
  • the sending unit 1502 is specifically configured to:
  • the user equipment determines that the protocol data unit is sent by the base station, and the external network IP address of the user equipment is used by the WLAN AC to determine that the data unit is to be sent to the user equipment, and is used by the WLAN AC to obtain the intranet IP address of the user equipment.
  • the sending unit 1502 is further configured to send a bearer protocol data unit corresponding to the WLAN AC. Bearer ID.
  • the sending unit 1502 is further configured to: instruct the user equipment to send the following at least one data packet to the base station by using a wireless local area network:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • At least one data packet includes an intranet IP address of the user equipment.
  • the sending unit 1502 is further configured to send the IP address of the base station to the user equipment.
  • the at least one data packet further includes a UDP port number of the user equipment and a UDP port number of the base station.
  • the base station provided by the embodiment of the present invention can perform the technical solution of the foregoing method embodiment, and the implementation principle and the like are not repeated herein.
  • the base station provided by the embodiment of the present invention serves as a convergence point and a distribution point to implement offloading between the user equipment and the base station. Since the base station is sensitive to the quality change of the network link of the wireless local area network, the service continuity is ensured, the user experience is improved, and the user experience is avoided. When the EPC is used as a convergence point and a distribution point, the service is not sensitive to the quality change of the network link of the wireless local area network.
  • FIG. 16 is a schematic structural diagram of a base station according to still another embodiment of the present invention.
  • the base station 1600 provided in this embodiment includes: a network interface 1601, a memory 1602, a processor 1603, and a bus 1604.
  • the network interface 1601, the memory 1602, and the processor 1603 are respectively connected to the bus 1604, where:
  • the processor 1603 calls the program 1605 stored in the memory 1602 via the bus 1604 for:
  • the network interface 1601 Obtaining downlink data through the network interface 1601, where the downlink data includes a protocol data unit to be sent by the base station to the user equipment;
  • the media access control MAC address of the base station and the MAC address of the user equipment, the MAC address of the base station and the MAC address of the user equipment are used to offload the protocol data unit through the wireless local area network via the offloading device To the user device.
  • the protocol data unit is sent to the offloading device through the network interface 1601, specifically:
  • the protocol data unit is sent to the WLAN AP through the network interface 1601, the MAC address of the base station and the MAC address of the user equipment, and the MAC address of the user equipment is used by the WLAN AP to send the protocol data unit to the user equipment, and the MAC address of the base station is used for determining by the user equipment.
  • the protocol data unit is transmitted by the base station.
  • the offloading device includes the WLAN access point WLAN AP and the WLAN access controller WLAN AC, sending the protocol data unit to the offloading device through the network interface 1601, specifically:
  • the base station sends a protocol data unit, a MAC address of the base station, and a MAC address of the user equipment to the WLAN AC, and is used by the WLAN AC to send the protocol data unit to the WLAN AP through the CAPWAP tunnel, the MAC address of the base station, and the MAC address of the user equipment, and the MAC address of the user equipment.
  • the address is used to send the protocol data unit to the user equipment, and the MAC address of the base station is used by the user equipment to determine that the protocol data unit is sent by the base station.
  • the processor 1603 by using the bus 1604, invokes the program 1605 stored in the memory 1602, and is further configured to send, by using the network interface 1601, a bearer identifier corresponding to the bearer protocol data unit to the WLAN AC.
  • the processor 1603 calls the program 1605 stored in the memory 1602 through the bus 1604, and is further configured to:
  • the address of the MAC of the user equipment sent by the user equipment is received through the network interface 1601.
  • the MAC address of the base station is a source address
  • the MAC address of the user equipment is a target address
  • the processor 1603 calls the program 1605 stored in the memory 1602 through the bus 1604, and is further configured to:
  • the IP address of the user equipment sent by the user equipment is received through the network interface 1601.
  • the base station provided by the embodiment of the present invention can perform the technical solution of the foregoing method embodiment, and the implementation principle thereof is similar, and details are not described herein again in this embodiment.
  • the base station provided by the embodiment of the present invention serves as a convergence point and a distribution point.
  • the base station is sensitive to the quality change of the network link of the wireless local area network, ensures service continuity, improves user experience, and avoids EPC as a convergence point and a distribution point.
  • the quality of the network link of the wireless local area network is not sensitive, the service is not continuous.
  • FIG. 17 is a schematic structural diagram of a base station according to still another embodiment of the present invention.
  • the user equipment 1700 provided in this embodiment includes: a network interface 1701, a memory 1702, a processor 1703, and a bus 1704.
  • the network interface 1701, the memory 1702, and the processor 1703 are respectively connected to the bus 1704, where:
  • the processor 1703 calls the program 1705 stored in the memory 1702 via the bus 1704 for:
  • the protocol data unit is sent to the offloading device through the network interface 1701.
  • the Internet Protocol IP address of the base station and the external network IP address of the user equipment are used to offload the protocol data unit to the user equipment through the wireless local area network via the offloading device.
  • the protocol data unit is sent to the offloading device through the network interface 1701, specifically for:
  • the user equipment determines that the protocol data unit is sent by the base station, and the external network IP address of the user equipment is used by the WLAN AC to determine that the data unit is to be sent to the user equipment, and is used by the WLAN AC to obtain the intranet IP address of the user equipment.
  • the processor 1703 calls the program 1705 stored in the memory 1702 through the bus 1704, and is further configured to send, by using the network interface 1701, a bearer identifier corresponding to the bearer protocol data unit to the WLAN AC.
  • the processor 1703 calls the program 1705 stored in the memory 1702 through the bus 1704, and is further configured to, through the network interface 1701, instruct the user equipment to send the following at least one data packet to the base station by using a wireless local area network:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • the at least one data packet includes an intranet IP address of the user equipment.
  • the processor 1703 calls the program 1705 stored in the memory 1702 via the bus 1704, and is further configured to send the IP address of the base station to the user equipment through the network interface 1701.
  • the at least one data packet further includes a UDP port number of the user equipment and a UDP port number of the base station.
  • the base station provided by the embodiment of the present invention can perform the technical solution of the foregoing method embodiment, and the implementation principle thereof is similar, and details are not described herein again in this embodiment.
  • the base station provided by the embodiment of the present invention serves as a convergence point and a distribution point
  • the user equipment and the base station are offloaded, and the base station is sensitive to the quality change of the network link of the wireless local area network, thereby ensuring the industry.
  • the continuity of the service improves the user experience and avoids the discontinuity of the service caused by the quality change of the network link of the wireless local area network when the EPC is used as the convergence point and the distribution point.
  • a user equipment is shown below, and the user equipment is applicable to a communication system including a base station and a WLAN AP; further, the communication system may further include a WLAN AC.
  • the base station and the user equipment implement offloading via a WLAN AP, or implement data splitting through mutual participation of the WLAN AP and the WLAN AC.
  • the application may be based on the architecture of FIG. 5 or FIG. 8, the user equipment includes:
  • the receiving unit is configured to receive a protocol data unit that is sent by the base station and is offloaded to the user equipment by using the WLAN device, and the MAC address of the base station and the MAC address of the user equipment.
  • the MAC address of the foregoing base station and the MAC address of the user equipment are used to send the protocol data unit to the user equipment via the offloading device.
  • the base station transmits downlink data to the user equipment or the user equipment to send uplink data to the base station, such as protocol data unit, data or IP packet generation and transmission, and the like.
  • downlink data such as protocol data unit, data or IP packet generation and transmission, and the like.
  • the user equipment When the user equipment is used as the convergence point and the distribution point, the user equipment is used to implement the traffic distribution between the user equipment and the base station.
  • the base station is sensitive to the quality change of the network link of the wireless local area network, ensuring service continuity and improving the user experience.
  • the EPC When the EPC is used as a convergence point and a distribution point, the service discontinuity caused by the quality change of the network link of the wireless local area network is not continuous.
  • a user equipment is shown, and the user equipment is applicable to a communication system including a base station, a WLAN AP, and a WLAN AC, and the base station and the user equipment implement data offloading via the WLAN AP and the WLAN AC.
  • the application can be based on the architecture of Figure 12, the user equipment comprising:
  • the receiving unit is configured to receive a protocol data unit that is sent by the base station and is offloaded to the user equipment by using the WLAN device, the IP address of the base station, and the external network IP address of the user equipment.
  • the IP address of the foregoing base station and the external network IP address of the user equipment are used to send the protocol data unit to the user equipment via the offloading device.
  • the base station when the offloading device is a WLAN AC and a WLAN AP, the base station transmits downlink data to the user equipment or the user equipment to send uplink data to the base station, such as protocol data unit, data or IP packet generation and transmission, and the like.
  • downlink data such as protocol data unit, data or IP packet generation and transmission, and the like.
  • the user equipment further includes a sending unit, configured to report the IP address of the user equipment to the base station.
  • the receiving unit may receive an indication of the base station, where the indication is used to instruct the sending unit to send any of the following data packets to the base station through the wireless local area network:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • Any of the above data packets includes the intranet IP address of the user equipment.
  • any of the foregoing data packets further includes a UDP/TCP port number of the user equipment and a UDP/TCP port number of the base station.
  • the UDP/TCP port number can distinguish different user equipments on the premise that the external network IP address of the UE is the same.
  • For the base station to obtain the external network IP address of the UE refer to the description of the embodiment of the base station, and details are not described herein again.
  • the user equipment When the user equipment is used as the convergence point and the distribution point, the user equipment is used to implement the traffic distribution between the user equipment and the base station.
  • the base station is sensitive to the quality change of the network link of the wireless local area network, ensuring service continuity and improving the user experience.
  • the EPC When the EPC is used as a convergence point and a distribution point, the service discontinuity caused by the quality change of the network link of the wireless local area network is not continuous.
  • a power distribution device is shown below, and the power distribution device is applicable to a communication system including a base station and a user equipment; further, the power distribution device may be a WLAN AP, or further include a WLAN AC.
  • the base station and the user equipment implement offloading via a WLAN AP, or implement data splitting through mutual participation of the WLAN AP and the WLAN AC, and the application may be based on the architecture of FIG. 5 or FIG. 8.
  • the offloading device includes:
  • a receiving unit configured to receive a protocol data unit sent by the base station, a MAC address of the base station, and a MAC address of the user equipment;
  • a sending unit configured to send the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment.
  • the WLAN AP includes:
  • a receiving unit configured to receive a protocol data unit sent by the base station, a MAC address of the base station, and a MAC address of the user equipment;
  • a sending unit configured to send the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment.
  • the WLAN AP when the offloading device is a WLAN AP and a WLAN AC, the WLAN AP includes:
  • a receiving unit configured to receive a protocol data unit sent by the WLAN AC, and a MAC address of the base station Address and MAC address of the user equipment;
  • the sending unit sends the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment, where the protocol data unit, the MAC address of the base station, and the MAC address of the user equipment are sent by the base station to the WLAN AC. .
  • the WLAN AC includes:
  • a receiving unit configured to receive a protocol data unit sent by the base station, a MAC address of the base station, and a MAC address of the user equipment;
  • a sending unit configured to send the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the WLAN AP, where the WLAN AP will receive the foregoing protocol data unit, the MAC address of the base station, and the user equipment.
  • the MAC address is sent to the user equipment.
  • the MAC address of the base station and the MAC address of the user equipment may be used to send the foregoing protocol data unit to the user equipment via the offloading device.
  • the receiving unit of the WLAN AP is further configured to receive a bearer identifier corresponding to the bearer protocol data unit sent by the base station, where the sending unit of the WLAN AP is further configured to send the bearer protocol data unit corresponding to the user equipment.
  • Bearer ID a bearer identifier corresponding to the bearer protocol data unit sent by the base station
  • the sending unit of the WLAN AP is further configured to send the bearer protocol data unit corresponding to the user equipment.
  • the receiving unit of the WLAN AC is further configured to receive a bearer identifier corresponding to the bearer protocol data unit sent by the base station, where the sending unit of the WLAN AC is further configured to send a bearer protocol to the WLAN AP.
  • the bearer ID corresponding to the data unit.
  • the receiving unit of the WLAN AP is further configured to receive a bearer identifier corresponding to the bearer protocol data unit sent by the WLAN AC, where the sending unit of the WLAN AP is further configured to send the bearer to the user equipment.
  • the offloading device is a WLAN AP
  • the downlink data of the base station or the related content of the uplink data of the user equipment such as the generation, transmission, and the like of the protocol data unit, may be referred to by FIG. 4, FIG. 5, FIG.
  • the description of Figure 7 will not be repeated here.
  • the offloading device is a WLAN AC and a WLAN AP
  • the downlink data of the base station or the related content of the uplink data of the user equipment such as protocol data unit, data or IP packet generation, transmission, etc.
  • the WLAN AP and the WLAN AC Reference may be made to the descriptions of FIG. 4, FIG. 8, FIG. 9, and FIG. 10, and details are not described herein again.
  • the traffic distribution device provided by the embodiment of the present invention is used by the base station as a convergence in the data offloading process. Point and split point, the base station is sensitive to the quality change of the network link of the WLAN, ensuring service continuity, improving the user experience, and avoiding the quality change of the network link of the WLAN when the EPC is used as the convergence point and the split point.
  • the business caused by sensitivity is not continuous.
  • the power distribution device can be applied to a communication system including a base station and a user equipment. Further, the power distribution device can be a WLAN AP and a WLAN AC. The base station and the user equipment implement offloading via a WLAN AP, or implement data splitting through mutual participation of the WLAN AP and the WLAN AC, and the application may be based on the architecture of FIG.
  • the traffic distribution device includes:
  • a receiving unit configured to receive a protocol data unit sent by the base station, an IP address of the base station, and an external network IP address of the user equipment;
  • a sending unit configured to send the received protocol data unit, the MAC address of the base station, and the MAC address of the user equipment to the user equipment.
  • the IP address of the base station and the external network IP address of the user equipment are used to send the protocol data unit to the user equipment via the offloading device.
  • the WLAN AC includes:
  • a receiving unit configured to receive a protocol data unit sent by the base station, an IP address of the base station, and an external network IP address of the user equipment;
  • a processing unit configured to convert the received external network IP address of the user equipment into an intranet IP address of the user equipment
  • a sending unit configured to send the foregoing protocol data unit, an IP address of the base station, and an intranet IP address of the user equipment to the WLAN AP, where the WLAN AP will receive the foregoing protocol data unit, the IP address of the base station, and the user equipment.
  • the network IP address is sent to the user equipment.
  • the processing unit is further configured to acquire a MAC address of the user equipment according to the received external network IP address of the user equipment.
  • the WLAN AP when the offloading device is a WLAN AP and a WLAN AC, the WLAN AP includes:
  • a receiving unit configured to receive a protocol data unit sent by the WLAN AC, an IP address of the base station, and an intranet IP address of the user equipment;
  • a sending unit configured to send the received protocol data unit, the IP address of the base station, and the intranet IP address of the user equipment to the user equipment.
  • the IP address of the foregoing protocol data unit and the base station is sent by the base station to the WLAN AC, where The internal network IP address of the user equipment is converted by the WLAN AC according to the external network IP address of the user equipment sent by the base station to the user equipment.
  • the receiving unit of the WLAN AP is further configured to receive a bearer identifier corresponding to the bearer protocol data unit sent by the WLAN AC, where the sending unit of the WLAN AP is further configured to send the bearer to the user equipment.
  • the receiving unit of the WLAN AC is further configured to receive a bearer identifier corresponding to the bearer protocol data unit sent by the base station, where the sending unit of the WLAN AC is further configured to send a bearer protocol to the WLAN AP.
  • the bearer ID corresponding to the data unit.
  • the offloading device is a WLAN AC and a WLAN AP
  • the downlink data of the base station or the related content of the uplink data of the user equipment such as protocol data unit, data or IP packet generation, transmission, etc.
  • the WLAN AC and the WLAN AP Reference may be made to the descriptions of FIG. 11 , FIG. 12 and FIG. 13 , and details are not described herein again.
  • the UE may also report its own IP address to the base station.
  • the user equipment may receive an indication of the base station, where the indication is used to indicate that the user equipment sends any of the following data packets to the base station through the wireless local area network:
  • IP data packet Transmission Control Protocol TCP packet, or User Data Protocol UDP packet;
  • Any of the above data packets includes the intranet IP address of the user equipment.
  • any of the foregoing data packets further includes a UDP/TCP port number of the user equipment and a UDP/TCP port number of the base station.
  • the UDP/TCP port number can distinguish different user equipments on the premise that the external network IP address of the UE is the same.
  • For the base station to obtain the external network IP address of the UE refer to the description of the embodiment of the base station, and details are not described herein again.
  • the base station In the data offloading process, the base station is used as a convergence point and a split point in the data offloading process, and the base station is sensitive to the quality change of the network link of the wireless local area network, ensuring service continuity, improving user experience, and avoiding EPC. When it is a convergence point and a distribution point, the service is not sensitive to the quality change of the network link of the wireless local area network.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including a number of instructions to make a computer device (either a personal computer, a server, or Network devices, etc.) perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明实施例提供一种数据传输方法及设备,该方法包括基站获取下行数据,下行数据包括基站待发送至用户设备的协议数据单元;基站向分流设备发送协议数据单元,基站的媒体接入控制MAC地址和用户设备的MAC地址,基站的MAC地址和用户设备的MAC地址用于将协议数据单元经由分流设备通过无线局域网分流至用户设备。本发明实施例保证了分流过程中的业务连续性。

Description

数据传输方法及设备 技术领域
本发明实施例涉及通信技术,尤其涉及一种数据传输方法及设备。
背景技术
随着智能手机的迅猛发展,越来越多的移动通信终端都集成了无线局域网(Wireless Local Area Network,简称WLAN)的通信模块。另一方面,随着人们对移动宽带需求的不断增加,现有的(例如,无线蜂窝)通信系统承受到越来越大的数据流量的压力。
无线蜂窝网络具有覆盖范围广、支持高速移动等优点,同时具有数据速率低、价格高、传输功率大等缺点,比较适合于高速运动、室外大范围活动等场景。而WLAN具有数据速率高、价格低、传输功率小等优点,同时具有覆盖范围小,比较适合于相对静止、室内小范围活动等场景。考虑到无线蜂窝网络和无线局域网各自的优缺点之后,一个可行的方法是把无线蜂窝技术和WLAN技术相互融合,利用WLAN分流无线蜂窝通信系统的数据流量,提高用户体验,实现高效低成本的通信。
目前,已知一种通信技术,在用户设备(User Equipment,简称UE)已经通过基站接入演进的分组核心网(Evolved Packet Core,简称EPC),并通过某一分组数据网网关(Packet Data Network-Gateway,PDN-GW)建立分组数据网(Packet Data Network,PDN)连接。随后,该UE可以通过例如,可信无线局域网络接入网(Trusted Wireless Local Area Networks Access Network,简称TWAN)接入该EPC,并且,TWAN可以选择某一PDN-GW创建PDN连接,从而实现了无线蜂窝技术和WLAN技术相互融合。
但是,该技术无法保证业务连续性,严重影响用户体验。
发明内容
本发明实施例提供一种数据传输方法及设备,在实现分流的同时,保证业务连续性,改善用户体验。
第一方面,本发明实施例提供一种传输数据的方法,包括:
基站获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
所述基站向分流设备发送所述协议数据单元,所述基站的媒体接入控制MAC地址和所述用户设备的MAC地址,所述基站的MAC地址和所述用户设备的MAC地址用于将所述协议数据单元经由所述分流设备通过无线局域网分流至所述用户设备。
结合第一方面,在第一方面的第一种可能的实现方式中,当所述分流设备为无线局域网接入点WLAN AP时,所述基站向分流设备发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,具体包括:
所述基站向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于所述WLAN AP将所述协议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
结合第一方面,在第一方面的第二种可能的实现方式中,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述基站向分流设备发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,具体包括:
所述基站向所述WLAN AC发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,用于所述WLAN AC通过CAPWAP隧道向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于将所述协议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
结合第一方面的第一种或第二种可能的实现方式,在第一方面的第三种可能的实现方式中,所述基站向所述WLAN AP或者WLAN AC发送承载所述协议数据单元对应的承载标识。
结合第一方面,或第一方面的第一种至第三种任一种可能的实现方式,在第一方面的第四种可能的实现方式中,所述基站向所述用户设备发送所述基站的MAC地址;
所述基站接收所述用户设备发送的所述用户设备的MAC的地址。
结合第一方面,或第一方面的第一种至第四种任一种可能的实现方式,在第一方面的第五种可能的实现方式中,所述基站的MAC地址为源地址,所述用户设备的MAC地址为目标地址。
结合第一方面,或第一方面的第一种至第五种任一种可能的实现方式,在第一方面的第六种可能的实现方式中,所述基站向所述用户设备发送所述基站的互联网协议IP地址;
所述基站接收所述用户设备发送的所述用户设备的IP地址。
第二方面,本发明实施例提供一种传输数据的方法,包括:
基站获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
所述基站向分流设备发送所述协议数据单元,所述基站的互联网协议IP地址,所述用户设备的外网IP地址,用于将所述协议数据单元经由分流设备通过无线局域网分流至所述用户设备。
结合第二方面,在第二方面的第一种可能的实现方式中,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述基站向分流设备发送所述协议数据单元,所述基站的IP地址和所述用户设备的外网IP地址,具体包括:
所述基站向所述WLAN AC发送所述协议数据单元,所述基站的IP地址和所述用户设备的外网IP地址,用于所述WLAN AC向所述WLAN AP发送所述协议数据单元,所述基站的IP地址,所述用户设备的内网IP地址,所述基站的IP地址用于所述用户设备确定所述协议数据单元由所述基站发送,所述用户设备的外网IP地址用于所述WLAN AC确定所述协议数据单元待发送至所述用户设备,并用于所述WLAN AC获取所述用户设备的内网IP地址。
结合第二方面或第二方面的第一种可能的实现方式,在第二方面的第二种可能的实现方式中,
所述基站向所述WLAN AC发送承载所述协议数据单元对应的承载标识。
结合第二方面,或第二方面的第一种或第二种可能的实现方式,在第二方面的第三种可能的实现方式中,所述基站指示所述用户设备通过所述无线 局域网向所述基站发送以下至少一个数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
所述至少一个数据包包括所述用户设备的内网IP地址。
结合第二方面,或第二方面的第一种至第三种可能的实现方式,在第二方面的第四种可能的实现方式中,所述基站向所述用户设备发送所述基站的IP地址。
结合第二方面的第四种可能的实现方式,在第二方面的第五种可能的实现方式中,所述至少一个数据包还包括所述用户设备的UDP端口号和所述基站的UDP端口号,或者包括所述用户设备的TCP端口号和所述基站的TCP端口号。
第三方面,本发明实施例提供一种基站,包括:
接收单元,用于获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
发送单元,用于向分流设备发送所述协议数据单元,所述基站的媒体接入控制MAC地址和所述用户设备的MAC地址,所述基站的MAC地址和所述用户设备的MAC地址用于将所述协议数据单元经由所述分流设备通过无线局域网分流至所述用户设备。
结合第三方面,在第三方面的第一种可能的实现方式中,当所述分流设备为无线局域网接入点WLAN AP时,所述发送单元,具体用于:
向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于所述WLAN AP将所述协议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
结合第三方面,在第三方面的第二种可能的实现方式中,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述发送单元,具体用于:
向所述WLAN AC发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,用于所述WLAN AC通过无线接入点控制和配置CAPWAP隧道向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于将所述协 议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
结合第三方面,或第三方面的第一种或第二可能的实现方式中,在第三方面的第三种可能的实现方式中,所述发送单元还还用于:
向所述WLAN AP或者所述WLAN AC发送承载所述协议数据单元对应的承载标识。
结合第三方面,或第三方面的第一种至第三种任一种可能的实现方式中,在第三方面的第四种可能的实现方式中,所述发送单元还用于向所述用户设备发送所述基站的MAC地址;
所述接收单元还用于接收所述用户设备发送的所述用户设备的MAC的地址。
结合第三方面,或第三方面的第一种至第四种任一种可能的实现方式中,在第三方面的第五种可能的实现方式中,所述基站的MAC地址为源地址,所述用户设备的MAC地址为目标地址。
结合第三方面,或第三方面的第一种至第五种任一种可能的实现方式中,在第三方面的第六种可能的实现方式中,所述发送单元还用于向所述用户设备发送所述基站的互联网协议IP地址;
所述接收单元还用于接收所述用户设备发送的所述用户设备的IP地址。
第四方面,本发明实施例提供一种基站,包括:
接收单元,用于获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
发送单元,用于向分流设备发送所述协议数据单元,所述基站的互联网协议IP地址,所述用户设备的外网IP地址,用于将所述协议数据单元经由所述分流设备通过无线局域网分流至所述用户设备。
结合第四方面,在第四方面的第一种可能的实现方式中,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述发送单元,具体用于:
向所述WLAN AC发送所述协议数据单元,所述基站的IP地址和所述用户设备的外网IP地址,用于所述WLAN AC向所述WLAN AP发送所述协议数据单元,所述基站的IP地址,所述用户设备的内网IP地址,所述基站的IP 地址用于所述用户设备确定所述协议数据单元由所述基站发送,所述用户设备的外网IP地址用于所述WLAN AC确定所述协议数据单元待发送至所述用户设备,并用于所述WLAN AC获取所述用户设备的内网IP地址。
结合第四方面,或第四方面的第一种可能的实现方式中,在第四方面的第二种可能的实现方式中,所述发送单元还用于:
向所述WLAN AC发送承载所述协议数据单元对应的承载标识。
结合第四方面,或第四方面的第一种或第二种可能的实现方式中,在第四方面的第三种可能的实现方式中,所述发送单元还用于指示所述用户设备通过所述无线局域网向所述基站发送以下至少一个数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
所述至少一个数据包包括所述用户设备的内网IP地址。
结合第四方面,或第四方面的第一种至第三种可能的实现方式中,在第四方面的第四种可能的实现方式中,所述发送单元还用于向所述用户设备发送所述基站的IP地址。
结合第四方面的第三种可能的实现方式中,在第四方面的第五种可能的实现方式中,所述至少一个数据包还包括所述用户设备的UDP端口号和所述基站的UDP端口号,或者包括所述用户设备的TCP端口号和所述基站的TCP端口号。本发明实施例提供一种传输数据的方法及设备,在数据分流过程中,由基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,从而保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为本发明传输数据的场景示意图;
图2是表示本发明实施例的基站、UE、WLAN AP中各个协议栈的通信 关系的示意图;
图3是表示本发明实施例的基站、UE、WLAN AP中各个协议栈的配置结构的示意图;
图4示出了本发明一实施例的传输数据的方法的示意性流程图;
图5示出了图4所示的本发明一实施例的实现方式的架构图;
图6示出了图4所示的本发明一实施例的基站、UE、WLAN AP中各个协议栈的配置结构的示意图;
图7示出了图4所示的本发明一实施例的基站、UE、WLAN AP中各个协议栈的配置结构的示意图;
图8示出了图4所示的本发明一实施例的另一种实现方式的架构图;
图9示出了图4所示的本发明一实施例的基站、UE、WLAN AP、WLANAC中各个协议栈的配置结构的示意图;
图10示出了图4所示的本发明一实施例的基站、UE、WLAN AP、WLANAC中各个协议栈的配置结构的示意图;
图11示出了本发明又一实施例的传输数据的方法的示意性流程图;
图12示出了图11所示的本发明又一实施例的架构图;
图13示出了图11所示的本发明又一实施例的基站、UE、WLAN AP、WLAN AC中各个协议栈的配置结构的示意图;
图14为本发明一实施例的基站结构示意图;
图15为本发明一实施例的基站结构示意图;
图16为本发明又一实施例的基站结构示意图;
图17为本发明又一实施例的基站结构示意图。
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,而不是全部的实施例。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。
本发明的技术方案,可以应用于无线蜂窝网络的各种通信系统,例如: 全球移动通讯(Global System of Mobile communication,简称GSM)系统,码分多址(Code Division Multiple Access,简称CDMA)系统,宽带码分多址(Wideband Code Division Multiple Access Wireless,简称WCDMA)系统,通用分组无线业务(General Packet Radio Service,简称GPRS)系统,长期演进(Long Term Evolution,简称LTE)系统,通用移动通信系统(Universal Mobile Telecommunications System,简称:UMTS)等,本发明并不限定。
在本发明实施例中,用户设备(User Equipment,简称UE),也可称之为移动终端(Mobile Terminal)、移动用户设备等,可以经无线接入网(例如,Radio Access Network,简称RAN)与一个或多个核心网进行通信,用户设备可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据,本发明并不限定。
基站,可以是GSM或CDMA中的基站(Base Transceiver Station,简称BTS),也可以是WCDMA中的基站(Node B),还可以是LTE中的演进型基站(eNB或e-Node B,evolved Node B),本发明并不限定。基站也包括各种接入网节点的控制节点,例如UMTS中的无线网口控制器(Radio Network Controller,简称RNC),或管理多个小基站的控制器等。
在本发明实施例中,为了对无线蜂窝网络的数据进行分流,在本发明的通信系统中,需要设置无线局域网接入点(Wireless Local Area Network Access Point,简称WLAN AP),并且,该无线局域网接入点,可以是例如,无线保真(Wireless Fidelity,简称WiFi)中的接入点,本发明并不限定。
本发明实施例中的WLAN AP存在两种网络架构:自主管理架构和集中管理架构。自主管理架构又称为“胖”AP架构,WLAN AP负责用户设备接入、用户设备断开、权限认证、安全策略实施、数据转发、数据加密、网络管理等任务,自主控制WLAN AP的配置和无线功能。集中管理架构又称为“瘦”AP架构,管理权一般集中在无线局域网接入控制器(Wireless Local Area Network Access Controller,简称WLAN AC)上。该WLAN AC管理用户设备的IP地址、认证和加密等,WLAN AP只具有加密、数据转发、射频功能,不能独立工作。WLAN AP与WLAN AC之间采用控制和配置无线接入点(Control And Provisioning of Wireless Access Points,简称CAPWAP)规范协议。以下 行数据传输为例,待发送至UE的数据经由WLAN AC封装,并通过CAPWAP隧道发送,并经由WLAN AP实现上述待发送至UE的数据的转发处理。可选的,上述WLAN AP可以与基站一体化设置。因为本发明实施例主要涉及WLAN AP的数据转发功能,故上述WLAN AP的两种网络架构都可以应用。为便于理解和说明,以下以自主管理架构即“瘦”AP架构为例,本发明并不限定。
图1为本发明传输数据的场景示意图,该场景针对多流汇聚(Multiple Stream Aggregation,简称MSA)的通信方式,采用无线蜂窝网络和无线局域网的相互融合,向用户设备提供高速稳定的服务。如图1所示,以WLAN AP为例,基站可以作为数据的分流点和汇聚点,经由WLAN AP传输UE的数据(包括上行数据或下行数据),随后对该过程进行详细描述。上述上行数据或下行数据可以是无线蜂窝网络空口协议栈中某个协议层的协议数据单元(protocol data unit,简称PDU),本发明并不限定。
以下,针对MSA场景进行说明:
在本发明实施例中,针对基站向UE传输的下行数据(以下简称下行传输),该下行数据可以包括第一部分下行数据和第二部分下行数据。基站将第一部分下行数据分流到WLAN AP,再经由WLAN AP发送给UE,或基站将第一部分下行数据分流到WLAN AC,再经由WLAN AP发送给UE;第二部分下行数据由基站直接通过无线蜂窝网络发送给UE,从而可以同时利用无线蜂窝网络和WLAN网络的传输能力,实现更高的UE下行峰值传输速率。
针对UE向基站传输的上行数据(以下简称上行传输),该上行数据可以包括第一部分上行数据和第二部分上行数据。UE将第一部分上行数据分流到WLAN AP,再经由WLAN AP发送给基站,或UE将第一部分上行数据分流到WLAN AP,再经由WLAN AC发送给基站;第二部分上行数据由UE直接通过无线蜂窝网络发送给基站,从而可以同时利用无线蜂窝网络和WLAN网络的传输能力,实现更高的UE上行峰值传输速率。
在下行传输时,基站可以向WLAN AP,或WLAN AC传输需要分流的数据,并通过WLAN AP,或WLAN AC结合WLAN AP将该数据发送给UE;在上行传输时,UE可以将需要分流的数据发送给WLAN AP,并通过WLAN AP,或WLAN AC结合WLAN AP将该数据发送给基站。因此,在本发明实 施例中,在基站、WLAN AC、WLAN AP中需要配置用于实现彼此之间通信的协议栈,同样,在UE、WLAN AC、WLAN AP中需要配置用于实现彼此之间通信的协议栈。
图2是表示本发明实施例的基站、UE、WLAN AP中各个协议栈的通信关系的示意图。WLAN AC的协议栈可参考基站或WLAN AP的协议栈,不再具体展开。
UE与WLAN AP之间采用无线局域网通信方式。在UE中,可以设置用于实现该无线局域网通信的协议栈,例如,WiFi协议栈。由于UE与WLAN AP采用无线局域网通信方式,该无线局域网通信方式使用的时频资源不同于UE与基站之间的无线蜂窝网络通信使用的时频资源,从而,能够分流基站与UE间传输的数据。
WLAN AP和基站之间、WLAN AP和WLAN AC之间、或,WLAN AC和基站之间的通信方式可以结合底层协议,例如以太网传输通信方式,实现WLAN AP与基站之间,或,WLAN AC与基站的通信。
如图3所述,图3是表示本发明实施例的基站、UE、WLAN AP中各个协议栈的配置结构的示意图。以下分别对基站、WLAN AP和UE中的协议栈配置结构进行说明。
下面,对该基站中的协议栈配置结构进行说明。
可选地,该基站具有基站协议栈。在本发明实施例中,该基站协议栈可以具有第一基站协议栈和第二基站协议栈,该第一基站协议栈用于在基站侧实现与该用户设备之间通信的数据处理,该第二基站协议栈用于在基站侧实现与WLAN AP或WLAN AC之间通信的数据处理。
应理解,该第一基站协议栈仅为示例性说明,本发明并不限定于此,其他能够在基站(或者说,接入网节点)侧实现基站与用户设备之间的通信的协议栈均落入本发明的保护范围内。并且,上述基站与用户设备之间的通信包括能够行使基站功能的接入网节点与用户设备之间的通信,例如,能够实现中继节点(Relay Node,简称RN)与用户设备之间通信的协议栈同样落入本发明的保护范围。
作为该第二基站协议栈,可以使用例如以太网传输等通信方式。应理解,上述通信方式仅为示例性说明,本发明并不限定于此,其他能够在基站侧实 现WLAN AP与基站之间的通信的协议栈均落入本发明的保护范围内。其中,第二基站协议栈可以通过内部接口直接聚合在第一基站协议栈的至少一个协议层上,本发明对此不作限定。
在本发明实施例中,该第一基站协议栈或第二基站协议栈可以包括用户面协议栈,也可以包括用户面协议栈和控制面协议栈,本发明并不特别限定。以下,以该第一基站协议栈或第二基站协议栈为用户面协议栈为例进行说明。
如图3所示,在本发明实施例中,作为示例而非限定,该第一基站协议栈可以包括以下协议层:
分组数据汇聚协议(Packet Data Convergence Protocol简称PDCP)层、无线链路控制(Radio Link Control,简称RLC)层、媒体接入控制(Media Access Control,简称MAC)层和物理(Physical,简称PHY)层。PDCP层主要用于对信息进行压缩和解压缩、加密和解密;RLC层主要用于实现自动重传请求(Automatic Repeat Request,简称ARQ)的相关功能,对信息进行分段和级联或对分段和级联的信息进行重组;MAC层主要用于对传输格式组合的选择,实现调度和混合自动重传请求(Hybrid Automatic Repeat Request,简称HARQ)的相关功能;PHY层主要用于为MAC层和高层提供信息传输的服务,根据选择的传输格式组合进行编码调制处理或解调解码处理。
需要说明的是,在本实施例中,以第二基站协议栈聚合在第一基站协议栈的PDCP层为例,但本发明对此不做限定。即,在本发明实施例中,可以使第二基站协议栈与上述第一基站协议栈的PDCP层、RLC层或MAC层中的任一协议层上,甚至在PDCP层之上的IP层相聚合。在本实施例中,为了便于陈述,将聚合第二基站协议栈的第一基站协议栈的协议层称为聚合层。本实施例的基站协议栈的聚合层具有聚合数据与分流数据的功能。例如,该聚合层可以用于聚合该用户设备通过WLAN AP与基站间传输的上行数据和通过无线蜂窝网络与基站间传输的上行数据;或,用于分流:该聚合层可以用于分流该基站通过WLAN AP与用户设备间传输的下行数据,和通过无线蜂窝网络与用户设备间传输的下行数据。在本发明实施例中,该聚合层可以为:PDCP层、RLC层、MAC层、或IP层。在本发明实施例中,当聚合层分别为PDCP层、RLC层、MAC层、或IP层时,对应的聚合层实体可以分别为PDCP实体、RLC实体、MAC实体、或IP实体。
以下以第一基站协议栈的聚合层为例:
在上行传输过程中,第一基站协议栈的聚合层用于将UE通过WLAN AP发送的第一部分上行数据和UE通过无线蜂窝网络向基站发送的第二部分上行数据进行汇聚;在下行传输过程中,第一基站协议栈的聚合层用于将聚合层生成的数据分流为第一部分下行数据和第二部分下行数据,基站将第一部分下行数据处理后通过WLAN AP发送给UE,且通过无线蜂窝网络向UE发送第二部分下行数据。下面进行详细说明。
以基站从核心网获取数据并向用户设备发送为例,基站可以使用S1接口与核心网连接。并且,可以通过S1接口从核心网获取数据,然后通过该第一基站协议栈从高到低逐协议层处理,直到该第一基站协议栈的聚合层。基站对聚合层处理后输出的第一部分下行数据交给该第二基站协议栈进行处理,第二基站协议栈将处理后的第一部分下行数据发送给WLAN AP,从而该WLAN AP可以结合无线局域网通信方式,将该第一部分下行数据发送给UE或WLAN AP经由WLAN AC将该第一部分下行数据发送给UE。第一基站协议栈还可以将第二部分下行数据通过无线蜂窝网络发送给UE。UE在第一用户设备协议栈的聚合层对该第一部分下行数据和直接从蜂窝网接收到的第二部分下行数据进行聚合,在例如对两部分的数据进行重排序等处理后递交给该第一用户设备协议栈的聚合层的更高层(如果该聚合层并非该第一用户设备协议栈的最高层)。以第一基站协议栈或第一用户设备协议栈为LTE协议栈为例,PHY/MAC/RLC/PDCP依次层级递增。对于第一部分下行数据,例如,当聚合层是PDCP层时,基站从S1接口获取下行数据后通过PDCP层生成第一部分下行数据,并该第一部分下行数据交给第二基站协议栈处理,用于第二基站协议栈将第一部分下行数据分流到WLAN AP或WLAN AC。当聚合层是RLC时,基站从S1接口获取下行数据后通过PDCP层处理后发送至RLC层。该RLC层生成第一部分下行数据,并将该第一部分下行数据交给第二基站协议栈处理,用于第二基站协议栈将数据分流到WLAN AP或WLAN AC。
以基站接收用户设备发送的数据并向核心网发送为例,基站可以使用S1接口与核心网连接,WLAN AP可以通过无线局域网通信方式接收UE发送的第一部分上行数据。随后,WLAN AP可以通过它与基站之间的通信协议将 第一部分上行数据发送给基站;或,WLAN AP可以通过它与WLAN AC之间的通信协议将第一部分上行数据发送至WLAN AC,并由WLAN AC发送至基站。基站在第一基站协议栈的聚合层将该第一部分上行数据和直接从无线蜂窝网络接收到的UE发送的第二部分上行数据进行聚合,在例如对两部分的数据进行重排序等处理后递交给第一基站协议栈的聚合层的更高层(如果该聚合层并非该第一基站协议栈的最高层),然后该更高层将处理后的数据通过S1接口发送至核心网。对于第一部分上行数据,以第一基站协议栈为LTE协议栈为例,PHY/MAC/RLC/PDCP依次层级递增,当聚合层为PDCP层时,PDCP层对该第一部分上行数据和直接从无线蜂窝网络接收到的第二部分上行数据进行聚合,处理后基站通过S1接口发送至核心网。当聚合层为RLC层时,RLC层对该第一部分上行数据和直接从无线蜂窝网络接收到的第二部分上行数据进行聚合及处理,随后递交给PDCP层,PDCP层处理后通过基站经由S1接口发送至核心网。
下面,对该WLAN AP中的协议栈配置结构进行说明。
可选地,该WLAN AP具有WLAN AP协议栈。在本实施例中,该WLAN AP协议栈可以具有第一WLAN AP协议栈和第二WLAN AP协议栈。该第一WLAN AP协议栈用于在该WLAN AP侧实现与该基站之间通信的数据处理,该第二WLAN AP协议栈用于在该WLAN AP侧实现与该用户设备之间通信的数据处理。
作为该第一WLAN AP协议栈,可以使用例如以太网传输、等通信方式。应理解,上述通信方式仅为示例性说明,本发明并不限定于此,其他能够在WLAN AP侧实现WLAN AP与基站之间的通信的协议栈均落入本发明的保护范围内。并且,在本发明实施例中,该第一WLAN AP协议栈可以包括用户面协议栈,也可以包括用户面协议栈和控制面协议栈,本发明并不特别限定。以下,以该第一WLAN AP协议栈为用户面协议栈为例进行说明。
作为该第二WLAN AP协议栈,可以列举用于实现该无线局域网通信的协议栈,例如,WiFi协议栈。应理解,该WiFi协议栈仅为示例性说明,本发明并不限定于此,其他能够在WLAN AP(或者说,无线局域网接入节点)侧实现WLAN AP与用户设备之间的通信的协议栈均落入本发明的保护范围内。
如图3所示,在本发明实施例中,作为示例而非限定,该WiFi协议栈可以包括:媒体访问控制(Media Access Control,简称MAC)层、物理层(Physical Layer,简称PHY)。其中,MAC层的主要功能是为用户在不可靠媒介上提供可靠的数据传输,提供分布式协调功能、集中式控制访问机制、以及加密服务、侦听与回避、功率控制等。PHY层主要功能是执行物理层汇聚流程,以将数据块映射到合适的物理帧格式,进行编码调制处理或解调解码处理等。
以WLAN AP从基站获取数据并向用户设备发送为例,WLAN AP可以通过第一WLAN AP协议栈获取基站需要发送给UE的数据;或者WLAN AP可以经由WLAN AC获取基站需要发送给UE的数据。随后,WLAN AP可以通过无线局域网通信方式,将该数据发送给UE,随后对该过程进行详细说明。
以WLAN AP从用户设备获取数据并向基站发送为例,WLAN AP可以通过无线局域网通信方式获取UE需要发给基站的数据。随后,WLAN AP可以通过第一WLAN AP协议栈将该数据发送给基站;或者经由WLAN AC将该数据发送给基站,随后对该过程进行详细说明。
下面,对该UE中的协议栈配置结构进行说明。
可选地,该用户设备具有用户设备协议栈,在本实施例中,该用户设备协议栈具有第一用户设备协议栈和第二用户设备协议栈,该第一用户设备协议栈用于在该用户设备侧实现与该基站之间通信的数据处理。该第二用户设备协议栈用于在该用户设备侧实现与该WLAN AP之间通信的数据处理。其中,该第二用户设备协议栈与该第一用户设备协议栈的至少一个协议层相连。
应理解,该第一用户设备协议栈仅为示例性说明,本发明并不限定于此,其他能够在用户设备侧实现基站与用户设备之间的通信的协议栈均落入本发明的保护范围内。并且,上述基站与用户设备之间的通信包括能够行使基站功能的接入网节点与用户设备之间的通信。例如,能够实现中继节点(Relay Node,简称RN)与用户设备之间通信的用户设备协议栈同样落入本发明的保护范围。
如图3所示,作为示例而非限定,上述第一用户设备协议栈可以包括以下协议层:分组数据汇聚协议(Packet Data Convergence Protocol,简称PDCP)层、无线链路控制(Radio Link Control,简称RLC)层、媒体接入控制(Media  Access Control,简称MAC)层和物理(Physical,简称PHY)层。PDCP层主要用于对信息进行压缩和解压缩/加密和解密;RLC层主要用于实现自动重传请求(Automatic Repeat Request,简称ARQ)的相关功能,对信息进行分段和级联或对分段和级联的信息进行重组;MAC层主要用于对传输格式组合的选择,实现调度和混合自动重传请求(Hybrid Automatic Repeat Request,简称HARQ)的相关功能;PHY层主要用于为MAC层和高层提供信息传输的服务,根据选择的传输格式组合进行编码调制处理或解调解码处理。
作为该第二用户设备协议栈,可以列举用于实现无线局域网通信的协议栈,例如,WiFi协议栈。应理解,该WiFi协议栈仅为示例性说明,本发明并不限定于此,其他能够在用户设备侧实现WLAN AP与用户设备之间的通信的协议栈均落入本发明的保护范围内。
如图3所示,在本发明实施例中,作为示例而非限定,该WiFi协议栈可以包括:媒体访问控制MAC层、物理层PHY。其中,MAC层的主要功能是为用户在不可靠媒介上提供可靠的数据传输,提供分布式协调功能、集中式控制访问机制、以及加密服务、侦听与回避、功率控制等。物理层主要功能是执行物理层汇聚流程,以将数据块映射到合适的物理帧格式,进行编码调制处理或解调解码处理等。
需要说明的是,在本实施例中,以第二用户设备协议栈聚合在第一用户设备协议栈的PDCP层为例,但本发明对此不做限定。即,在本发明实施例中,可以使第二用户设备协议栈与上述第一用户设备协议栈的PDCP层、RLC层或MAC层中的任一协议层,甚至PDCP层之上的IP层相聚合。在本实施例中,为了便于陈述,将聚合第二用户设备协议栈的第一用户设备协议栈的协议层称为用户设备协议栈的聚合层。本实施例的用户设备协议栈的聚合层具有聚合数据与分流数据的功能。例如,该聚合层可以用于聚合该基站通过WLAN AP与用户设备间传输的下行数据和通过无线蜂窝网络与用户设备间传输的下行数据;或,用于分流:该聚合层可以用于分流该用户设备通过WLAN AP与基站间传输的上行数据,和通过无线蜂窝网络与基站间传输的上行数据。在本实施例中,该聚合层可以为:PDCP层、RLC层、MAC层、或IP层。在本发明实施例中,当聚合层分别为PDCP层、RLC层、MAC层、或IP层时,对应的聚合层实体可以分别为PDCP实体、RLC 实体、MAC实体、或IP实体。
以下以第一用户设备协议栈的聚合层为例:
在上行传输过程中,第一用户设备协议栈的聚合层用于将聚合层生成的数据分流为第一部分上行数据和第二部分上行数据,UE将第一部分上行数据处理后通过WLAN AP发送给基站,且通过无线蜂窝网络向基站发送第二部分上行数据。或者,UE将第一部分上行数据先发送给WLAN AP,再经由WLAN AC发送给基站。在下行传输中,第一用户设备协议栈的聚合层用于将基站通过WLAN AP发送的第一部分下行数据和基站通过无线蜂窝网络发送的第二部分下行数据进行汇聚。或者,第一用户设备协议栈的聚合层用于将基站通过WLAN AC和WLAN AP发送的第一部分下行数据和基站通过无线蜂窝网络发送的第二部分下行数据进行汇聚。下面进行详细说明。
以UE通过WLAN AP向基站发送数据为例,UE可以通过第一用户设备协议栈从高到低逐协议层处理该数据,直到该第一用户设备的聚合层。用户设备对聚合层处理后输出的第一部分上行数据交由第二用户设备协议栈进行处理,经由第二用户设备协议栈发送至WLAN AP,用于该WLAN AP将该第一部分上行数据发送给基站。可选地,用户设备将聚合层处理后输出的第二部分上行数据通过无线蜂窝网络发送给基站。基站在第一基站协议栈的聚合层对该第一部分上行数据和直接从无线蜂窝网络收到的第二部分上行数据进行聚合,处理后递交给该第一基站协议栈的聚合层的更高层(如果该聚合层并非该第一基站协议栈的最高层)。具体的实施例与基站侧类似,本实施例此处不再赘述。
以UE接收基站通过WLAN AP发送的数据为例,UE可以通过无线局域网通信方式接收WLAN AP发送的第一部分下行数据。UE在第一用户设备协议栈的聚合层对该第一部分下行数据和直接从无线蜂窝网络接收到的第二部分下行数据进行聚合,然后递交给该第一用户设备协议栈的聚合层的更高层(如果该聚合层并非该第一基站协议栈的最高层)。具体的实施例与基站侧类似,本实施例此处不再赘述。
下面,对基站和UE在根据本发明实施例的传输数据的方法进行数据传输时的动作分别进行详细说明。为了使得下面对传输数据的方法的描述更加清楚和更容易理解,首先对该方法中涉及到的一些概念说明如下:
协议数据单元:在通信系统中,两个相邻协议层之间传递的数据被称为该相邻协议层中较高层的协议数据单元(protocol data unit,简称PDU)。以LTE协议栈为例,PDCP层经过头压缩、加密等处理后递交给RLC层的数据称为PDCP PDU。相反,RLC接收到MAC层递交上来的数据并经过数据分段重组、重排序后递交给PDCP的数据单元也叫PDCP PDU。为了便于区分,以及便于详细描述通过WLAN AP进行分流的过程,在基站侧,针对第一基站协议栈的聚合层输出的第一部分下行协议数据单元称为第一协议数据单元。
本发明实施例中,将基站经由分流设备分流至用户设备的协议数据单元称为第一协议数据单元。
本发明实施例中,将用户设备经由分流设备分流至基站的协议数据单元成为第二协议数据单元。
本发明实施例中,承载标识用于指示协议数据单元所属的无线承载。以下行数据为例,在一种实现方式中,基站可以经由WLAN AP向UE发送第一协议数据单元和对应该第一协议数据单元所属的无线承载的承载标识;此时,WLAN AP可以向UE转发该第一协议数据单元和相应的承载标识。在另一种实现方式中,基站可以经由WLAN AC和WLAN AP向UE发送第一协议数据单元和对应该第一协议数据单元所属的无线承载的承载标识。具体而言,基站向WLAN AC发送第一协议数据单元和相应的承载标识;WLAN AC向WLAN AP发送接收到的第一协议数据单元和相应的承载标识;WLAN AP向UE发送接收到的第一协议数据单元和相应的承载标识。故,UE可以根据接收到的承载标识,将从无线局域网获取到的分流的协议数据单元映射到承载标识所对应的承载上。
本发明实施例中,一种可能的实现方式为:基站根据周围邻居信息列表,指示UE对周围WLAN AP进行测量并将测量结果上报给基站。随后,基站根据该测量结果(例如:UE测量到WLAN AP对应的WiFi网络信号较强),从中选定一个WLAN AP进行数据分流。另一种可能的实现方式为:基站根据网络负载以及WLAN AP的分布,(例如,在网络负载较重的区域分布有WLAN AP),确定通过WLAN AP进行分流。
还应理解,对于WLAN网络来说,网络侧服务设备为AP,用户侧终端 设备为STA,而对于无线蜂窝网络来说,网络侧服务设备为基站,用户侧终端设备为UE。在本发明实施例的WLAN和无线蜂窝网络组成的异构网络场景中,用户侧终端设备可以称为UE或STA,能够接收两个网络的服务,为了方便描述,以下统称为UE。
本发明实施例中,外网IP地址可以理解为由IANA(Internet Assigned Numbers Authority,因特网编号分配机构)或者等效的地址注册机构进行分配的全球唯一的网络地址;内网IP地址是独立于公网IP地址的地址,可以理解为局域网内分配的地址。
图4示出了本发明一实施例的传输下行数据的方法的示意性流程图,该方法由通信系统中的基站执行。该通信系统还可以包括WLAN AP,WLAN AC和用户设备,该基站与用户设备之间可以经由WLAN AP实现数据分流,也可以由WLAN AP和WLAN AC共同实现数据分流。该方法包括:
401、基站获取下行数据,该下行数据包括基站待发送至用户设备的协议数据单元;
402、基站向分流设备发送该协议数据单元,基站的MAC地址和用户设备的MAC地址,基站的MAC地址和用户设备的MAC地址用于将协议数据单元经由分流设备通过无线局域网分流至用户设备。
如图5所示,为图4所示的实施例中第一种实现方式的架构图,其中,分流设备为无线局域网接入点WLAN AP。例如,基站可以通过有线直连到WLAN AP的无线局域网接口上,或者通过任意方式实现基站和WLAN AP属于同一网段或同一局域网。
图5结合图6所示,在第一种实现方式的可选方案中,基站中用于在该基站侧实现与WLAN AP之间通信的数据处理的协议栈可以包括层1(layer 1,L1),层2(Layer 2,L2)和适配层。例如,L2可以为MAC层,L1可以为PHY层。
针对该协议栈,以下行为例,适配层可以生成第一数据,该第一数据包括第一协议数据单元,基站的MAC地址和UE的MAC地址,并将第一数据发送至WLAN AP。故,WLAN AP可以根据该第一数据中的UE的MAC地址,将第一协议数据单元封装成第二数据后发送至UE,其中,该第二数据包括源地址为基站的MAC地址,目标地址为UE的MAC地址。该第二数据还可以包括 发送地址为WLAN AP的MAC地址,接收地址为UE的MAC地址。当UE收到第二数据后,可以根据基站的MAC地址,获知第一协议数据单元由基站经由WLAN AP分流至该UE。
可选的,该第一数据和第二数据还可以包括该第一协议数据单元对应的无线承载标识。
同样针对上述协议栈,即基站中用于在该基站侧实现与WLAN AP之间通信的数据处理的协议栈可以包括层1,层2和适配层,以上行数据为例,UE发送上行数据的方法包括:
UE获取上行数据,上行数据包括UE待发送至基站的协议数据单元;
UE向WLAN AP发送上述待发送至基站的协议数据单元,基站的MAC地址和用户设备的MAC地址,基站的MAC地址和用户设备的MAC地址用于将上述协议数据单元经由WLAN AP通过无线局域网分流至用户设备。
可选的,基站的MAC地址用于WLAN AP将上述协议数据单元发送至基站,用户设备的MAC地址用于基站确定上述协议数据单元由UE发送。
具体而言,UE将待发送至基站的协议数据单元(以下称为第二协议数据单元)封装在第三数据中发送给WLAN AP。其中,该第三数据可以包括源地址为UE的MAC地址,目标地址为基站的MAC地址。该第三数据还可以包括发送地址为UE的MAC地址,接收地址为WLAN AP的MAC地址。WLAN AP接收UE发送的第三数据,获取第二协议数据单元,并根据该第三数据的目标地址确定第二协议数据单元需要转发给基站。然后,WLAN AP将第二协议数据单元封装成第四数据,通过以太网发送给基站。其中,该第四数据中,源地址填UE的MAC地址,目标地址填基站的MAC地址。基站接收到WLAN AP发送的第四数据,获取第二协议数据单元,并根据源地址确定发送该第二协议数据单元的UE。
可选的,该第三数据和第四数据还可以包括该第二协议数据单元对应的无线承载标识。
图5结合图7所示,在第一种实现方式的另一种可选方案中,基站中用于在该基站侧实现与WLAN AP之间通信的数据处理的协议栈可以包括第一IP层,适配层,L2,L1。针对该协议栈,第一IP层可以生成IP数据包,该IP数据包中可以包括基站的IP地址,和第一协议数据单元。第一IP层将IP数 据包发送至适配层,适配层可以生成上述第一数据,该第一数据可以包括IP数据包,UE的MAC地址和基站的MAC的地址,并将第一数据发送至WLAN AP。故,WLAN AP可以根据该第一数据中的UE的MAC地址,将第一协议数据单元发送封装成第二数据后发送至UE,其中,该第二数据可以包括源地址为基站的MAC地址,目标地址为UE的MAC地址。该第二数据还可以包括发送地址为WLAN AP的MAC地址,接收地址为UE的MAC地址。当UE收到第二数据后,可以根据基站的MAC地址,获知第一协议数据单元由基站经由WLANAP分流至该UE。
可选的,该IP数据包还可以包括该第一协议数据单元对应的无线标识。
可选的,该实现方式中,基站可以通过以下途径获取用于实现无线局域网内部通讯的基站的IP地址。例如:通过手动配置,或者通过向WLAN AC/动态主机配置协议(Dynamic Host Configuration Protocol,DHCP)服务器获取,该基站的IP地址和WLAN AP的IP地址属于同一网段。其中,所述同一网段可以指基站的IP地址和子网掩码相与得到的网络地址,与WLAN AP的IP地址和子网掩码相与得到的网络地址相同。
可选的,在本实施例中,基站向用户设备发送其自身的IP地址。同样,UE也可以将其自身的IP地址上报给基站。
同样针对上述协议栈,基站中用于在该基站侧实现与WLAN AP之间通信的数据处理的协议栈可以包括第一IP层,适配层,L2,L1,以上行数据为例,该方法包括:
UE获取上行数据,上行数据包括UE待发送至基站的协议数据单元;
UE向WLAN AP发送上述待发送至基站的协议数据单元,基站的MAC地址和用户设备的MAC地址,基站的MAC地址和用户设备的MAC地址用于将上述待发送至基站的协议数据单元经由WLAN AP通过无线局域网分流至用户设备。
可选的,针对上行数据,基站的MAC地址用于WLAN AP将上述协议数据单元发送至基站,用户设备的MAC地址用于基站确定上述协议数据单元由UE发送。
具体而言,UE将待发送至基站的上述协议数据单元(以下称第二协议数据单元)通过第一IP层封装在IP包中,通过第三数据发送给WLAN AP。该 IP包包括UE的IP地址。该第三数据还可以包括源地址为UE的MAC地址,目标地址为基站的MAC地址。该第三数据还可以包括发送地址为UE的MAC地址,接收地址为WLAN AP的MAC地址。WLAN AP接收UE发送的第三数据,获取IP包,并根据该第三数据的目标地址确定IP包需要转发给基站。然后,WLAN AP将IP包封装成第四数据,通过以太网发送给基站。其中,该第四数据中,源地址填UE的MAC地址,目标地址填基站的MAC地址。基站接收到WLAN AP发送的第四数据,获取IP包中的第二协议数据单元,并根据源地址确定发送该第二协议数据单元的UE。
可选的,该IP包还可以包括该第二协议数据单元对应的无线承载标识。
如图8所示,图8为图4所示的实施例中第二种实现方式的架构图,其中,分流设备为无线局域网接入控制器WLAN AC和无线局域网接入点WLAN AP。例如,基站可以通过有线直连到WLAN AC的无线局域网接口上,或者通过任意方式实现基站和WLAN AC属于同一网段或同一局域网。
可选的,基站向分流设备发送协议数据单元,基站的MAC地址和用户设备的MAC地址,具体包括:
基站向WLAN AC发送协议数据单元,基站的MAC地址和用户设备的MAC地址,用于该WLAN AC通过CAPWAP隧道向该WLAN AP发送该协议数据单元,该基站的MAC地址和该用户设备的MAC地址,该用户设备的MAC地址用于将该协议数据单元发送至该用户设备,该基站的MAC地址用于该用户设备确定该协议数据单元由该基站发送。
图8结合图9所示,在第二种实现方式中的一种可行方案中,基站中用于在该基站侧实现与WLAN AC之间通信的数据处理的协议栈可以包括层1(layer 1,L1),层2(Layer 2,L2),和适配层。例如,L2可以为MAC层,L1可以为PHY层。
针对该协议栈,以下行为例,适配层可以生成第一数据,经由L2和L1将第一数据发送给WLAN AC。该第一数据包括第一协议数据单元,基站的MAC地址和UE的MAC地址。故,WLAN AC可以根据该第一数据中的UE的MAC地址,将第一协议数据单元发送至WLAN AP。例如,WLAN AC可以根据用户设备的MAC地址,获知第一协议数据单元需要转发的用户设备。并且,WLAN AC通过无线接入点控制和配置CAPWAP隧道向WLAN AP发送第二 数据,第二数据包括第一协议数据单元,基站的MAC地址和用户设备的MAC地址。同理,WLAN AP根据用户设备的MAC地址,获知第一协议数据单元需要发送的用户设备,并将该第一协议数据单元封装成第三数据后发送给用户设备,其中,该第三数据中还可以包括源地址为基站的MAC地址,目标地址为UE的MAC地址。其中,该第三数据中还可以包括发送地址为WLAN AP的MAC地址,接收地址为UE的MAC地址。当用户设备收到第三数据后,可以根据基站的MAC地址,获知第一协议数据单元由基站经由WLAN AP分流至该用户设备。
可选的,该第一数据,第二数据和第三数据还可以包括该第一协议数据单元对应的无线承载标识。
同样针对上述协议栈,即基站中用于在该基站侧实现与WLAN AC之间通信的数据处理的协议栈可以包括L1,L2,和适配层,以上行数据为例,UE发送上行数据的方法包括:
UE获取协议数据单元PDU,PDU包括UE待发送至基站的协议数据单元;
UE向WLAN AP发送上述待发送至基站的协议数据单元,基站的MAC地址和用户设备的MAC地址,用于WLAN AP通过无线接入点控制和配置CAPWAP隧道向WLAN AC发送该协议数据单元,基站的MAC地址和用户设备的MAC地址,用于将上述协议数据单元经由WLAN AC通过无线局域网网分流至基站。
可选的,针对上行数据,基站的MAC地址用于将该协议数据单元发送至基站,用户设备的MAC地址用于基站确定该协议数据单元由用户设备发送。
具体而言,UE将待发送至基站的协议数据单元(以下称为第二协议数据单元)封装在第四数据中发送给WLAN AP。其中,该第四数据可以包括源地址为UE的MAC地址,目标地址为基站的MAC地址。其中,该第四数据还可以包括发送地址为UE的MAC地址,接收地址为WLAN AP的MAC地址。WLAN AP接收UE发送的第四数据,获取第二协议数据单元,并根据该第四数据的目标地址确定第二协议数据单元需要转发给基站。然后,WLAN AP将第二协议数据单元封装成第五数据后,通过CAPWAP隧道发送给WLAN AC。。其中,该第五数据中,源地址填UE的MAC地址,目标地址填 基站的MAC地址。WLAN AC接收WLAN AP发送的第五数据,获取第二协议数据单元,并根据该第五数据的目标地址确定第二协议数据单元需要转发给基站。然后,WLAN AC将第二协议数据单元封装成第六数据后,通过CAPWAP隧道发送给基站。其中,该六数据中,源地址填UE的MAC地址,目标地址填基站的MAC地址。基站接收到WLAN AC发送的第六数据,获取第二协议数据单元,并根据源地址确定发送该第二协议数据单元的用户设备。
可选的,该第四数据,第五数据和第六数据还可以包括该第二协议数据单元对应的无线承载标识。
图8结合图10所示,在第二种实现方式的另一种可行方案中,基站中用于在该基站侧实现与WLAN AC之间通信的数据处理的协议栈可以包括第一IP层,适配层,L2,L1。
针对该协议栈,第一IP层可以生成IP数据包,该IP数据包中可以包括基站的IP地址,和第一协议数据单元。第一IP层将IP数据包发送至适配层,适配层可以生成第一数据,并经由经由L2和L1发送至WLAN AC。该第一数据可以包括IP数据包,UE的MAC地址和基站的MAC的地址。故,WLAN AC可以根据收到的第一数据中的UE的MAC地址,获知第一协议数据单元需要通过WLAN AP发送至UE。随后,WLAN AC将第一协议数据单元封装成第二数据后经由CAPWAP隧道发送至WLAN AP,其中,该第二数据中包含了源地址为基站的MAC地址,目标地址为UE的MAC地址。WLAN AP接收WLAN AC发送的第二数据后,从中获取第一协议数据单元,并根据该第二数据的目标地址确定该第一协议数据单元需要转发给UE。然后,WLAN AP将第一协议数据单元封装成第三数据后转发至UE。其中,第三数据可以包含源地址为基站的MAC地址,目标地址为UE的MAC地址。第三数据也可以包含发送地址为WLAN AP的MAC地址,接收地址为UE的MAC地址。当UE收到第三数据后,可以根据基站的MAC地址,获知第一协议数据单元由基站经由WLAN AP分流至该UE。
可选的,该IP数据包还可以包括该第一协议数据单元对应的无线承载标识。
可选的,该实现方式中,基站可以通过以下途径获取用于实现无线局域 网内部通讯的基站的IP地址。例如:通过手动配置,或者通过向WLAN AC/动态主机配置协议(Dynamic Host Configuration Protocol,DHCP)服务器获取,该基站的IP地址和WLAN AC的IP地址属于同一网段。
可选的,在本实施例中,基站向用户设备发送其自身的IP地址。同样,UE也可以将其自身的IP地址上报给基站。
同样针对上述协议栈,即基站中用于在该基站侧实现与WLAN AC之间通信的数据处理的协议栈可以包括第一IP层,适配层,L2,L1,以上行数据为例,UE向基站发送上行数据的方法包括:
UE获取协议数据单元PDU,PDU包括UE待发送至基站的协议数据单元;
UE向WLAN AP发送上述待发送至基站的协议数据单元,基站的MAC地址和用户设备的MAC地址,用于WLAN AP通过无线接入点控制和配置CAPWAP隧道向WLAN AC发送该协议数据单元,基站的MAC地址和用户设备的MAC地址,用于将上述协议数据单元通过无线局域网网分流至基站。
可选的,针对上行数据,基站的MAC地址用于将该协议数据单元发送至基站,用户设备的MAC地址用于基站确定该协议数据单元由UE发送。
具体而言,UE将待发送至基站的协议数据单元(以下称第二协议数据单元)通过第一IP层封装在IP包中,通过第四数据中发送给WLAN AP。该IP数据包包括UE的IP地址。其中,该第四数据还可以包括源地址为UE的MAC地址,目标地址为基站的MAC地址。该第四数据还可以包括发送地址为UE的MAC地址,接收地址为WLAN AP的MAC地址。WLAN AP接收UE发送的第四数据单元,获取IP包,并根据该第四数据的目标地址确定IP包需要转发给基站。然后,WLAN AP将IP包封装成第五数据,经由CAPWAP隧道向WLAN AC发送第五数据,该第五数据包括IP数据包,目标地址为基站的MAC地址,源地址为UE的MAC地址。WLAN AC根据该第五数据中的目标地址,获知该IP数据包需要转发给基站,并将该IP数据包封装成第六数据,通过以太网发送给基站。其中,该第六数据中,源地址填UE的MAC地址,目标地址填基站的MAC地址。基站接收到WLAN AC发送的第六数据,获取IP包中的第二协议数据单元,并根据源地址确定发送该第二协议数据单元的UE。
可选的,该IP数据包还可以包括该第二协议数据单元对应的无线承载标识。
可选的,在本实施例中,以下行为例,上述包含有待发送至用户设备的协议数据单元,源地址为基站的MAC地址,目标地址为用户设备的MAC地址的数据或IP数据包还包括待发送至用户设备的协议数据单元对应的承载标识,用于使用户设备将收到的上述协议数据单元映射到对应的承载上。
可选的,在本实施例中,以上行为例,上述包含有待发送至基站的协议数据单元、源地址为用户设备的MAC地址,目标地址为基站的MAC地址的数据或IP数据包还包括待发送至基站的协议数据单元对应的承载标识,用于使基站将收到的上述协议数据单元映射到对应的承载上。
可选的,在本实施例中,基站向用户设备发送基站的MAC地址;基站接收用户设备发送的用户设备的MAC的地址。例如,当UE在接入无线蜂窝网络过程中,基站可以通过无线资源控制(radio resource control,RRC)信令将其自身的MAC地址告知UE。同样,UE也可以将其自身的MAC地址上报给基站。
可选的,在本实施例中,以下行为例,基站的MAC地址为源地址,用户设备的MAC地址为目标地址。以上行为例,基站的MAC地址为目标地址,用户设备的MAC地址为源地址。
可选的,基站的适配层和L2之间还可以设置有CAPWAP层,用于实现基站和WLAN AP之间,或基站和WLAN AC之间通过CAPWAP隧道进行协议数据单元的传输。
可选的,基站的CAPWAP层和L2之间还可以设置有对应WLAN AC的UDP层和第二IP层。以下行为例,基站的UDP层用于生成目标端口号为WLAN AC的UDP端口号,源端口号为基站的UDP端口号;基站的第二IP层用于生成目标IP地址为WLAN AC的IP地址,源IP地址为基站的IP地址。以上行为例,基站的UDP层用于获取目标端口号为基站的UDP端口号,源端口号为WLAN AC的UDP端口号;基站的第二IP层用于获取目标IP地址为基站的IP地址,源IP地址为WLAN AC的IP地址。
本发明实施例提供的传输数据方法,由基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体 验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
图11示出了本发明又一实施例的传输下行数据的方法的示意性流程图,该方法由通信系统中的基站执行。该通信系统还可以包括WLAN AP,WLAN AC和用户设备,该基站与用户设备之间经由WLAN AC和WLAN AP实现数据分流。该方法包括:
1101、基站获取下行数据,该下行数据包括基站待发送至用户设备的协议数据单元;
1102、基站向分流设备发送该协议数据单元,基站的互联网协议IP地址,用户设备的外网IP地址,用于将协议数据单元经由分流设备通过无线局域网分流至用户设备。
如图12所示,为图11所示的实施例的架构图,其中,分流设备为WLAN AC和WLAN AP。例如,基站可以通过有线直连到WLAN AC的无线广域网接口上,或者通过任意方式实现基站和WLAN AC属于同一网段。或者,基站还可以通过路由器连接到WLAN AC的无线广域网接口上,同样可以实现基站与WLAN AC的连通,但此时基站和WLAN AC可以属于不同网段。
可选的,基站向WLAN AC发送协议数据单元,具体包括:
该基站的IP地址和该用户设备的外网IP地址,用于该WLAN AC向该WLAN AP发送该协议数据单元,该基站的IP地址,该用户设备的内网IP地址,该基站的IP地址用于该用户设备确定该协议数据单元由该基站发送,该用户设备的外网IP地址用于该WLAN AC确定该协议数据单元待发送至该用户设备,并用于该WLAN AC获取该用户设备的内网IP地址。
可选的,该用户设备的外网IP地址用于该WLAN AC获取该用户设备的MAC地址,以便确定接收该协议数据单元的用户设备。
以下将待发送至用户设备的协议数据单元称为第一协议数据单元。
图12结合图13所示,在该实施例的一种实现方式中,基站用于在该基站侧实现与WLAN AC之间通信的数据数据的协议栈可以包括IP层,L2和L1。例如,L2可以为MAC层,L1可以为PHY层。
针对该协议栈,IP层可以生成第一IP数据包,该第一IP数据包中可以包括基站的IP地址,用户设备的外网IP地址,和第一协议数据单元。IP层将第 一IP数据包发送至L2,并经由经由L2和L1发送至WLAN AC。WLAN AC将UE的外网IP地址转换成UE的内网IP地址,并向WLAN AP经由CAPWAP隧道发送第一数据。其中,该第一数据包括第二IP数据包,源地址为WLAN AC的MAC地址,目标地址为UE的MAC地址。其中,该第二IP数据包包括第一协议数据单元,基站的IP地址,用户设备的内网IP地址。WLAN AP根据收到的第一数据中的目标地址,获悉第二IP数据包需要发送给UE,并生成第二数据并发送给UE。其中,该第二数据可以包括第二IP数据包,源地址为WLAN AC的MAC地址,目标地址为UE的MAC地址。该第二数据还可以包括发送地址为WLAN AP的MAC地址,接收地址为UE的MAC地址。当UE收到第二数据后,可以根据基站的IP地址,WLAN AP的MAC地址以及WLAN AC的MAC地址,获知第一协议数据单元由基站经由WLAN AC和WLAN AP分流至该UE。本方案中,第二IP数据包为转化的第一IP数据包,即第一IP数据包中的UE的外网IP地址经由WLAN AC转换成UE的内网IP地址。
可选的,该第一IP数据包或第二IP数据包还可以包括该第一协议数据单元对应的无线承载标识。
可选的,在本实施例中,基站向用户设备发送其自身的IP地址。例如,当UE接入无线蜂窝网络过程中,基站可以通过RRC信令将其自身的IP地址发送给UE。
可选的,UE可以通过无线局域网向基站发送上行数据,从而使得基站获得该UE的外网IP地址。例如,基站指示用户设备通过无线局域网向基站发送以下至少一种数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
上述至少一种数据包包括用户设备的内网IP地址。
可选的,上述至少一种数据包还包括用户设备的UDP/TCP端口号和基站的UDP/TCP端口号。该UDP/TCP端口号可以在UE的外网IP地址相同的前提下,进一步区分不同的UE。
具体而言,基站获取UE的外网IP地址可以参考以下方式得以实现:
当UE随机接入基站后,基站可以根据UE的测量上报进行WLAN AP的选择,并将选定的WLAN AP信息通过RRC重配置消息下发给UE。其中,该RRC重配置消息中至少包括以下任意一种:选定WLAN AP的标识、基站的IP地址、 基站的UDP端口号、指示信息。
UE根据选定WLAN AP的标识接入指定的WLAN AP,并根据指示信息,在接入WLAN AP后通过无线局域网经由WLAN AP和WLAN AC向基站发送以下任意数据包:TCP包/UDP包/IP包(以下简称第一数据包)。其中,该第一数据包的源端口号为UE的端口号(如TCP端口号或UDP端口号)、目标端口号为基站的端口号(如TCP端口号或UDP端口号)、IP源地址为UE的内网IP地址、IP目标地址为基站的IP地址。
例如,WLAN AP从UE发送的第三数据中提取出上述第一数据包,并根据IP目标地址获知该基站与WLAN AP不属于同一网段,并将该第一数据包封装成第四数据后通过以太网发送给WLAN AC。其中,该第四数据中,源地址填UE的MAC地址,目标地址填WLAN AC的MAC地址。
WLAN AC根据第四数据包中的源地址,获悉发送该第一数据包的UE,并将UE的外网IP地址转换成UE的内网IP地址。另外,WLAN AC可以根据IP目标地址获知该第一数据包需要发送给基站,于是将转化后的第一IP数据包通过以太网发送给基站,从而使得基站获知UE在WLAN网络的外网IP地址。
可选的,上述WLAN AP的标识可以为WLAN AP的基本服务集标识(Basic Service Set Identifier,简称BSSID)或为服务集标识(Service Set Identifier,简称SSID)。
应理解,基本服务集(Basic Service Set,简称BSS)是WLAN网络的一个基本组件,通常由一个接入点AP和多个工作站(Station,简称STA)组成。扩展服务集(Extended Service set,简称ESS)是由多个BSS组成的。其中,每一个BSS都有唯一的标识(Identity,简称ID),即BSS ID或BSS标识。由于BSS通常有一个接入点AP,因此BSS标识通常为该接入点AP的标识,例如可以为AP的媒体接入控制(Media Access Control,简称MAC)地址。
同样针对上述协议栈,即基站用于在该基站侧实现与WLAN AC之间通信的数据数据的协议栈可以包括IP层,L2和L1,以上行数据为例,UE向基站发送上行数据的方法包括:
UE获取协议数据单元PDU,PDU包括UE待发送至基站的协议数据单元;
UE向分流设备发送上述待发送至基站的协议数据单元,基站的IP地址和用户设备的内网IP地址,用于将上述待发送至基站的协议数据单元通过无线局域网分流至基站。
可选的,UE向分流设备发送上述待发送至基站的协议数据单元,具体包括:
UE向WLAN AP发送第二协议数据单元,基站的IP地址和用户设备的内网IP地址,用于将第二协议数据单元通过无线局域网分流至用户设备,其中,基站的IP地址和用户设备的内网IP地址,用于将上述第二协议数据单元经由WLAN AC通过无线局域网分流至基站。
可选的,用户设备的内网IP地址用于WLAN AC确定该协议数据单元由UE发送,并根据该内网IP地址转换成对应的用户设备的外网IP地址,再将该协议数据单元通过用户设备的外网IP地址发送到基站,用于基站根据该用户设备的外网IP地址确定该协议数据单元由UE发送。
具体而言,UE将待发送至基站的协议数据单元(以下称第二协议数据单元)通过IP层封装在IP包中,通过第五数据中发送给WLAN AP。该IP数据包还包括源IP地址为UE的内网IP地址和目标IP地址为基站的IP地址。该第五数据还可以包括源地址为UE的MAC地址,目标地址为WLAN AC的MAC地址。该第五数据还可以包括发送地址为UE的MAC地址,接收地址为WLAN AP的MAC地址。WLAN AP接收UE发送的第五数据,获取IP包,并根据该第五数据的目标地址确定IP包需要发送给WLAN AC。然后,WLAN AP将IP包封装成第六数据,通过CAPWAP隧道发送给WLAN AC。该第六数据还包括目标地址为WLAN AC的MAC地址,源地址为UE的MAC地址。WLAN AC根据获取的IP包将UE的内网IP地址转化成外网IP地址,并根据IP包中的IP目标地址获悉该第二协议数据单元需要发送给基站。随后,WLAN AC通过以太网将转换后的IP包发送给基站。基站接收到WLAN AC发送的IP包,获取IP包中的第二协议数据单元,并根据IP源地址确定发送该第二协议数据单元的UE。
可选的,在本实施例中,以下行为例,上述包含待发送至用户设备的协议数据单元和用户设备的内网IP地址的IP包;或包含待发送至用户设备的协议数据单元和用户设备的外网IP地址的IP包还包括待发送至用户设备的协 议数据单元对应的承载标识,用于使用户设备将收到的上述协议数据单元映射到对应的承载上。
可选的,在本实施例中,以上行为例,上述包含用户设备内网IP地址或用户设备外网IP地址的IP包还包括待发送至基站的协议数据单元对应的承载标识,用于使基站将收到的上述协议数据单元映射到对应的承载上。
可选的,在本实施例中,基站向用户设备发送基站的MAC地址;基站接收用户设备发送的用户设备的MAC的地址。例如,当UE在接入无线蜂窝网络过程中,基站可以通过无线资源控制(radio resource control,RRC)信令将其自身的MAC地址告知UE。同样,UE也可以将其自身的MAC地址上报给基站。
本发明实施例提供的传输数据方法,由基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的传输下行数据的方法,该方法通信系统中的用户设备执行。该通信系统可以包括基站,WLAN AP;进一步,该通信系统还可以包括WLAN AC。该基站与该用户设备之间经由WLAN AP实现分流,或经由WLAN AP和WLAN AC的共同参与实现数据分流。该方法可以基于图5或图8的架构,包括:
用户设备接收基站发送并经由分流设备通过无线局域网分流至用户设备的协议数据单元,基站的MAC的地址和用户设备的MAC地址。上述基站的MAC地址和用户设备的MAC地址用于将协议数据单元经由分流设备发送至用户设备。
本实施例中,当分流设备为WLAN AP时,基站传输下行数据或用户设备发送上行数据的相关内容如数据、IP包或协议数据单元的生成、传输等可以参考图4、图5、图6、图7的描述,此处不再赘述。
本实施例中,当分流设备为WLAN AC和WLAN AP时,基站传输下行数据或用户设备发送上行数据的相关内容如协议数据单元、IP包或数据的生成、传输等可以参考图4、图8、图9、图10的描述,此处不再赘述。
本发明实施例提供的传输数据方法,由基站作为汇聚点和分流点,基站 对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的传输下行数据的方法,该方法通信系统中的用户设备执行,该通信系统还可以包括基站,WLAN AP和WLAN AC,该基站与该用户设备之间经由WLAN AP和WLAN AC实现数据分流。该方法可以基于图12的架构,包括:
用户设备接收基站发送并经由分流设备通过无线局域网分流至用户设备的协议数据单元,基站的IP地址和用户设备的外网IP地址。上述基站的IP地址和用户设备的外网IP地址用于将协议数据单元经由分流设备发送至用户设备。
本实施例中,当分流设备为WLAN AC和WLAN AP时,基站传输下行数据或用户设备发送上行数据的相关内容如协议数据单元、数据或IP包的生成、传输等可以参考图11、图12、图13的描述,此处不再赘述。
可选的,UE也可以将其自身的IP地址上报给基站。例如,用户设备可以接收基站的指示,该指示用于指示用户设备通过无线局域网向基站发送以下任意数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
上述任意数据包包括用户设备的内网IP地址。
可选的,上述任意数据包还包括用户设备的UDP/TCP端口号和基站的UDP/TCP端口号。该UDP/TCP端口号可以在UE的外网IP地址相同的前提下,区分不同的用户设备。基站获取UE的外网IP地址可以参考基站侧实施例的描述,此处不再赘述。
本发明实施例提供的传输数据方法,在数据分流过程中,由基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的传输下行数据的方法,该方法通信系统中的分流设备执行。该通信系统还可以包括基站,用户设备;进一步,该分流设备可以为WLAN AP,或进一步包括WLAN AC。该基站与该用户设备之间 经由WLAN AP实现分流,或经由WLAN AP和WLAN AC的共同参与实现数据分流。该方法可以基于图5或图8的架构,包括:
分流设备接收基站发送的协议数据单元,基站的MAC地址和用户设备的MAC地址;
分流设备将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
本实施例中,上述基站的MAC地址和用户设备的MAC地址可以用于将上述协议数据单元经由分流设备发送至用户设备。
可选的,在一种实现方式中,当分流设备为WLAN AP时,该方法包括:
WLAN AP接收基站发送的协议数据单元,基站的MAC地址和用户设备的MAC地址;
WLAN AP将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
可选的,在另一种实现方式中,当分流设备为WLAN AP和WLAN AC时,该方法包括:
WLAN AP接收WLAN AC发送的协议数据单元,基站的MAC地址和用户设备的MAC地址;
WLAN AP将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备,其中,上述协议数据单元,基站的MAC地址和用户设备的MAC地址由基站发送至WLAN AC。
可选的,当分流设备为WLAN AP和WLAN AC时,该方法包括:
WLAN AC接收基站发送的协议数据单元,基站的MAC地址和用户设备的MAC地址;
WLAN AC将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至WLAN AP,用于WLAN AP将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
可选的,当分流设备为WLAN AP时,WLAN AP接收基站发送的承载协议数据单元对应的承载标识,WLAN AP向用户设备发送承载协议数据单元对应的承载标识。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AC接收基 站发送的承载协议数据单元对应的承载标识,WLAN AC向WLAN AP发送承载协议数据单元对应的承载标识。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AP接收WLAN AC发送的承载协议数据单元对应的承载标识,WLAN AP向用户设备发送承载协议数据单元对应的承载标识。
本实施例中,当分流设备为WLAN AP时,经由WLAN AP传输基站的下行数据或用户设备的上行数据的相关内容如协议数据单元的生成、传输等可以参考图4、图5、图6、图7的描述,此处不再赘述。
本实施例中,当分流设备为WLAN AC和WLAN AP时,经由WLAN AP和WLAN AC传输基站的下行数据或用户设备的上行数据的相关内容如协议数据单元、数据或IP包的生成、传输等可以参考图4、图8、图9、图10的描述,此处不再赘述。
本发明实施例提供的传输数据方法,在数据分流过程中,由基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的传输下行数据的方法,该方法通信系统中的分流设备执行。该通信系统还可以包括基站,用户设备;进一步,该分流设备可以为WLAN AP,或进一步包括WLAN AC。该基站与该用户设备之间经由WLAN AP实现分流,或经由WLAN AP和WLAN AC的共同参与实现数据分流。该方法可以基于图12的架构,包括:
分流设备接收基站发送的协议数据单元,基站的IP地址和用户设备的外网IP地址;
分流设备将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
本实施例中,上述基站的IP地址和用户设备的外网IP地址用于将协议数据单元经由分流设备发送至用户设备。
可选的,当分流设备为WLAN AP和WLAN AC时,该方法包括:
WLAN AC接收基站发送的协议数据单元,基站的IP地址和用户设备的外网IP地址;
WLAN AC将接收到的用户设备的外网IP地址转换成用户设备的内网IP地址;
WLAN AC将上述协议数据单元,基站的IP地址和用户设备的内网IP地址发送至WLAN AP,用于WLAN AP将接收到的上述协议数据单元,基站的IP地址和用户设备的内网IP地址发送至用户设备。
可选的,WLAN AC根据接收到的用户设备的外网IP地址获取用户设备的MAC地址。
可选的,当分流设备为WLAN AP和WLAN AC时,该方法包括:
WLAN AP接收WLAN AC发送的协议数据单元,基站的IP地址和用户设备的内网IP地址;
WLAN AP将接收到的上述协议数据单元,基站的IP地址和用户设备的内网IP地址发送至用户设备。
其中,上述协议数据单元和基站的IP地址由基站向WLAN AC发送,上述用户设备的内网IP地址由WLAN AC根据基站向其发送的用户设备的外网IP地址转化而得。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AC接收基站发送的承载协议数据单元对应的承载标识,WLAN AC向WLAN AP发送承载协议数据单元对应的承载标识。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AP接收WLAN AC发送的承载协议数据单元对应的承载标识,WLAN AP向用户设备发送承载协议数据单元对应的承载标识。
本实施例中,当分流设备为WLAN AC和WLAN AP时,通过WLAN AC和WLAN AP传输基站的下行数据或用户设备的上行数据的相关内容如协议数据单元、数据或IP包的生成、传输等可以参考图11、图12、图13的描述,此处不再赘述。
可选的,UE也可以将其自身的IP地址上报给基站。例如,用户设备可以接收基站的指示,该指示用于指示用户设备通过无线局域网向基站发送以下任意数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
上述任意数据包包括用户设备的内网IP地址。
可选的,上述任意数据包还包括用户设备的UDP/TCP端口号和基站的UDP/TCP端口号。该UDP/TCP端口号可以在UE的外网IP地址相同的前提下,区分不同的用户设备。基站获取UE的外网IP地址可以参考基站侧实施例的描述,此处不再赘述。
本发明实施例提供的传输数据方法,在数据分流过程中,由基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
上文中结合图1至图13,详细描述了根据本发明实施例的分流方法,下面将结合图14至图17,描述本发明实施例的基站。
图14为本发明一实施例的基站结构示意图。本发明实施例提供的基站1400包括接收单元1401和发送单元1402。
其中,接收单元1401,用于获取下行数据,下行数据包括基站待发送至用户设备的协议数据单元;
发送单元1402,用于向分流设备发送协议数据单元,基站的媒体接入控制MAC地址和用户设备的MAC地址,基站的MAC地址和用户设备的MAC地址用于将协议数据单元经由分流设备通过无线局域网分流至用户设备。
可选的,当所述分流设备为无线局域网接入点WLAN AP时,发送单元1402,具体用于:
向WLAN AP发送协议数据单元,基站的MAC地址和用户设备的MAC地址,用户设备的MAC地址用于WLAN AP将协议数据单元发送至用户设备,基站的MAC地址用于用户设备确定协议数据单元由基站发送。
可选的,当分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,发送单元1402,具体用于:
向WLAN AC发送协议数据单元,基站的MAC地址和用户设备的MAC地址,用于WLAN AC通过无线接入点控制和配置CAPWAP隧道向WLAN AP发送协议数据单元,基站的MAC地址和用户设备的MAC地址,用户设备 的MAC地址用于将协议数据单元发送至用户设备,基站的MAC地址用于用户设备确定协议数据单元由基站发送。
可选的,发送单元1402还还用于:
向WLAN AC发送承载协议数据单元对应的承载标识。
可选的,发送单元1402还用于向用户设备发送基站的MAC地址;
接收单元还用于接收用户设备发送的用户设备的MAC的地址。
可选的,基站的MAC地址为源地址,用户设备的MAC地址为目标地址。
可选的,发送单元1402还用于向用户设备发送基站的互联网协议IP地址;接收单元1401还用于接收用户设备发送的用户设备的IP地址。
本发明实施例提供的基站,能够执行上述方法实施例的技术方案,其实现原理类似,本实施例此处不再赘述。
本发明实施例提供的基站,该基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
图15为本发明一实施例的基站结构示意图。如图15所示,本发明实施例提供的基站1500包括:接收单元1501,发送单元1502。
其中,接收单元1501,用于获取下行数据,下行数据包括基站待发送至用户设备的协议数据单元;
发送单元1502,用于向分流设备发送协议数据单元,基站的互联网协议IP地址,用户设备的外网IP地址,用于将协议数据单元经由分流设备通过无线局域网分流至用户设备。
可选的,当分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,发送单元1502,具体用于:
向WLAN AC发送协议数据单元,基站的IP地址和用户设备的外网IP地址,用于WLAN AC向WLAN AP发送协议数据单元,基站的IP地址,用户设备的内网IP地址,基站的IP地址用于用户设备确定协议数据单元由基站发送,用户设备的外网IP地址用于WLAN AC确定协议数据单元待发送至用户设备,并用于WLAN AC获取用户设备的内网IP地址。
可选的,发送单元1502还用于向WLAN AC发送承载协议数据单元对应 的承载标识。
可选的,发送单元1502还用于指示用户设备通过无线局域网向基站发送以下至少一个数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
至少一个数据包包括用户设备的内网IP地址。
可选的,发送单元1502还用于向用户设备发送基站的IP地址。
可选的,上述至少一个数据包还包括用户设备的UDP端口号和基站的UDP端口号。
本发明实施例提供的基站,能够执行上述方法实施例的技术方案,其实现原理和类似,本实施例此处不再赘述。
本发明实施例提供的基站作为汇聚点和分流点,实现该用户设备与基站之间的分流,由于基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
图16为本发明又一实施例的基站结构示意图。如图16所示,本实施例提供的基站1600包括:网络接口1601、存储器1602、处理器1603以及总线1604,网络接口1601、存储器1602以及处理器1603分别与总线1604连接,其中:
处理器1603通过总线1604,调用存储器1602中存储的程序1605,用于:
通过网络接口1601获取下行数据,下行数据包括基站待发送至用户设备的协议数据单元;
通过网络接口1601向分流设备发送协议数据单元,基站的媒体接入控制MAC地址和用户设备的MAC地址,基站的MAC地址和用户设备的MAC地址用于将协议数据单元经由分流设备通过无线局域网分流至用户设备。
可选的,当分流设备为无线局域网接入点WLAN AP时,通过网络接口1601向分流设备发送协议数据单元,具体包括:
通过网络接口1601向WLAN AP发送协议数据单元,基站的MAC地址和用户设备的MAC地址,用户设备的MAC地址用于WLAN AP将协议数据单元发送至用户设备,基站的MAC地址用于用户设备确定协议数据单元由基站发送。
可选的,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,通过网络接口1601向分流设备发送协议数据单元,具体包括:
基站向WLAN AC发送协议数据单元,基站的MAC地址和用户设备的MAC地址,用于WLAN AC通过CAPWAP隧道向WLAN AP发送协议数据单元,基站的MAC地址和用户设备的MAC地址,用户设备的MAC地址用于将协议数据单元发送至用户设备,基站的MAC地址用于用户设备确定协议数据单元由基站发送。
可选的,处理器1603通过总线1604,调用存储器1602中存储的程序1605,还用于通过网络接口1601向WLAN AC发送承载协议数据单元对应的承载标识。
可选的,处理器1603通过总线1604,调用存储器1602中存储的程序1605,还用于:
通过网络接口1601向用户设备发送基站的MAC地址;
通过网络接口1601接收用户设备发送的用户设备的MAC的地址。
可选的,基站的MAC地址为源地址,用户设备的MAC地址为目标地址。
可选的,处理器1603通过总线1604,调用存储器1602中存储的程序1605,还用于:
通过网络接口1601向用户设备发送基站的互联网协议IP地址;
通过网络接口1601接收用户设备发送的用户设备的IP地址。本发明实施例提供的基站,能够执行上述方法实施例的技术方案,其实现原理类似,本实施例此处不再赘述。
本发明实施例提供的基站,该基站作为汇聚点和分流点,该基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
图17为本发明又一实施例的基站结构示意图。本实施例提供的用户设备1700,其特征在于,包括:网络接口1701、存储器1702、处理器1703以及总线1704,网络接口1701、存储器1702以及处理器1703分别与总线1704连接,其中:
处理器1703通过总线1704,调用存储器1702中存储的程序1705,用于:
通过网络接口1701获取下行数据,所述数据包括基站待发送至用户设备的协议数据单元;
通过网络接口1701向分流设备发送协议数据单元,基站的互联网协议IP地址,用户设备的外网IP地址,用于将协议数据单元经由分流设备通过无线局域网分流至用户设备。
可选的,当分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,通过网络接口1701向分流设备发送协议数据单元,具体用于:
向WLAN AC发送协议数据单元,基站的IP地址和用户设备的外网IP地址,用于WLAN AC向WLAN AP发送协议数据单元,基站的IP地址,用户设备的内网IP地址,基站的IP地址用于用户设备确定协议数据单元由基站发送,用户设备的外网IP地址用于WLAN AC确定协议数据单元待发送至用户设备,并用于WLAN AC获取用户设备的内网IP地址。
可选的,处理器1703通过总线1704,调用存储器1702中存储的程序1705,还用于通过网络接口1701向WLAN AC发送承载协议数据单元对应的承载标识。
可选的,处理器1703通过总线1704,调用存储器1702中存储的程序1705,还用于通过网络接口1701,指示用户设备通过无线局域网向基站发送以下至少一个数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
该至少一个数据包包括用户设备的内网IP地址。
可选的,处理器1703通过总线1704,调用存储器1702中存储的程序1705,还用于通过网络接口1701向用户设备发送基站的IP地址。
可选的,至少一个数据包还包括用户设备的UDP端口号和基站的UDP端口号。
本发明实施例提供的基站,能够执行上述方法实施例的技术方案,其实现原理类似,本实施例此处不再赘述。
本发明实施例提供的基站作为汇聚点和分流点时,实现用户设备与基站之间的分流,由于基站对无线局域网的网络链路的质量变化敏感,保证了业 务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的用户设备,该用户设备可应用于包括基站和WLAN AP的通信系统;进一步,该通信系统还可以包括WLAN AC。该基站与该用户设备之间经由WLAN AP实现分流,或经由WLAN AP和WLAN AC的共同参与实现数据分流。该应用可以基于图5或图8的架构,该用户设备包括:
接收单元,用于接收基站发送并经由分流设备通过无线局域网分流至用户设备的协议数据单元,基站的MAC的地址和用户设备的MAC地址。
其中,上述基站的MAC地址和用户设备的MAC地址用于将协议数据单元经由分流设备发送至用户设备。
本实施例中,当分流设备为WLAN AP时,基站传输下行数据至用户设备或用户设备发送上行数据至基站的相关内容如协议数据单元、数据或IP包的生成、传输等可以参考图4、图5、图6、图7的描述,此处不再赘述。
本发明实施例提供的用户设备作为汇聚点和分流点时,实现用户设备与基站之间的分流,由于基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的用户设备,该用户设备可应用于包括基站,WLAN AP和WLAN AC的通信系统,该基站与该用户设备之间经由WLAN AP和WLAN AC实现数据分流。该应用可以基于图12的架构,该用户设备包括:
接收单元,用于接收基站发送并经由分流设备通过无线局域网分流至用户设备的协议数据单元,基站的IP地址和用户设备的外网IP地址。
其中,上述基站的IP地址和用户设备的外网IP地址用于将协议数据单元经由分流设备发送至用户设备。
本实施例中,当分流设备为WLAN AC和WLAN AP时,基站传输下行数据至用户设备或用户设备发送上行数据至基站的相关内容如协议数据单元、数据或IP包的生成、传输等可以参考图11、图12、图13的描述,此处不再赘述。
可选的,该用户设备还包括发送单元,用于将用户设备的IP地址上报给基站。例如,上述接收单元可以接收基站的指示,该指示用于指示发送单元通过无线局域网向基站发送以下任意数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
上述任意数据包包括用户设备的内网IP地址。
可选的,上述任意数据包还包括用户设备的UDP/TCP端口号和基站的UDP/TCP端口号。该UDP/TCP端口号可以在UE的外网IP地址相同的前提下,区分不同的用户设备。基站获取UE的外网IP地址可以参考基站侧实施例的描述,此处不再赘述。
本发明实施例提供的用户设备作为汇聚点和分流点时,实现用户设备与基站之间的分流,由于基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的分流设备,该分流设备可应用于包括基站和用户设备的通信系统;进一步,该分流设备可以为WLAN AP,或进一步包括WLAN AC。该基站与该用户设备之间经由WLAN AP实现分流,或经由WLAN AP和WLAN AC的共同参与实现数据分流,该应用可以基于图5或图8的架构。
本实施例中,该分流设备,包括:
接收单元,用于接收基站发送的协议数据单元,基站的MAC地址和用户设备的MAC地址;
发送单元,用于将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
可选的,当分流设备为WLAN AP时,该WLAN AP包括:
接收单元,用于接收基站发送的协议数据单元,基站的MAC地址和用户设备的MAC地址;
发送单元,用于将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
可选的,当分流设备为WLAN AP和WLAN AC时,该WLAN AP包括:
接收单元,用于接收WLAN AC发送的协议数据单元,基站的MAC地 址和用户设备的MAC地址;
发送单元,将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备,其中,上述协议数据单元,基站的MAC地址和用户设备的MAC地址由基站发送至WLAN AC。
可选的,当分流设备为WLAN AP和WLAN AC时,该WLAN AC包括:
接收单元,用于接收基站发送的协议数据单元,基站的MAC地址和用户设备的MAC地址;
发送单元,用于将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至WLAN AP,用于WLAN AP将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
本实施例中,上述基站的MAC地址和用户设备的MAC地址可以用于将上述协议数据单元经由分流设备发送至用户设备。
可选的,当分流设备为WLAN AP时,WLAN AP的接收单元还用于接收基站发送的承载协议数据单元对应的承载标识,WLAN AP的发送单元还用于向用户设备发送承载协议数据单元对应的承载标识。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AC的接收单元还用于接收基站发送的承载协议数据单元对应的承载标识,WLAN AC的发送单元还用于向WLAN AP发送承载协议数据单元对应的承载标识。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AP的接收单元还用于接收WLAN AC发送的承载协议数据单元对应的承载标识,WLAN AP的发送单元还用于向用户设备发送承载协议数据单元对应的承载标识。
本实施例中,当分流设备为WLAN AP时,经由WLAN AP传输基站的下行数据或用户设备的上行数据的相关内容如协议数据单元的生成、传输等可以参考图4、图5、图6、图7的描述,此处不再赘述。
本实施例中,当分流设备为WLAN AC和WLAN AP时,经由WLAN AP和WLAN AC传输基站的下行数据或用户设备的上行数据的相关内容如协议数据单元、数据或IP包的生成、传输等可以参考图4、图8、图9、图10的描述,此处不再赘述。
本发明实施例提供的分流设备,在数据分流过程中,由基站作为汇聚 点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
以下示出本发明又一实施例的分流设备,该分流设备可应用于包括基站和用户设备的通信系统;进一步,该分流设备可以为WLAN AP和WLAN AC。该基站与该用户设备之间经由WLAN AP实现分流,或经由WLAN AP和WLAN AC的共同参与实现数据分流,该应用可以基于图12的架构。
本实施例中,该分流设备包括:
接收单元,用于接收基站发送的协议数据单元,基站的IP地址和用户设备的外网IP地址;
发送单元,用于将接收到的上述协议数据单元,基站的MAC地址和用户设备的MAC地址发送至用户设备。
本实施例中,上述基站的IP地址和用户设备的外网IP地址用于将协议数据单元经由分流设备发送至用户设备。
可选的,当分流设备为WLAN AP和WLAN AC时,该WLAN AC包括:
接收单元,用于接收基站发送的协议数据单元,基站的IP地址和用户设备的外网IP地址;
处理单元,用于将接收到的用户设备的外网IP地址转换成用户设备的内网IP地址;
发送单元,用于将上述协议数据单元,基站的IP地址和用户设备的内网IP地址发送至WLAN AP,用于WLAN AP将接收到的上述协议数据单元,基站的IP地址和用户设备的内网IP地址发送至用户设备。
可选的,上述处理单元,还用于根据接收到的用户设备的外网IP地址获取用户设备的MAC地址。
可选的,当分流设备为WLAN AP和WLAN AC时,该WLAN AP包括:
接收单元,用于接收WLAN AC发送的协议数据单元,基站的IP地址和用户设备的内网IP地址;
发送单元,用于将接收到的上述协议数据单元,基站的IP地址和用户设备的内网IP地址发送至用户设备。
其中,上述协议数据单元和基站的IP地址由基站向WLAN AC发送,上 述用户设备的内网IP地址由WLAN AC根据基站向其发送的用户设备的外网IP地址转化而得。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AP的接收单元还用于接收WLAN AC发送的承载协议数据单元对应的承载标识,WLAN AP的发送单元还用于向用户设备发送承载协议数据单元对应的承载标识。
可选的,当分流设备为WLAN AP和WLAN AC时,WLAN AC的接收单元还用于接收基站发送的承载协议数据单元对应的承载标识,WLAN AC的发送单元还用于向WLAN AP发送承载协议数据单元对应的承载标识。
本实施例中,当分流设备为WLAN AC和WLAN AP时,通过WLAN AC和WLAN AP传输基站的下行数据或用户设备的上行数据的相关内容如协议数据单元、数据或IP包的生成、传输等可以参考图11、图12、图13的描述,此处不再赘述。
可选的,UE也可以将其自身的IP地址上报给基站。例如,用户设备可以接收基站的指示,该指示用于指示用户设备通过无线局域网向基站发送以下任意数据包:
IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
上述任意数据包包括用户设备的内网IP地址。
可选的,上述任意数据包还包括用户设备的UDP/TCP端口号和基站的UDP/TCP端口号。该UDP/TCP端口号可以在UE的外网IP地址相同的前提下,区分不同的用户设备。基站获取UE的外网IP地址可以参考基站侧实施例的描述,此处不再赘述。
本发明实施例提供的分流设备,在数据分流过程中,由基站作为汇聚点和分流点,基站对无线局域网的网络链路的质量变化敏感,保证了业务连续性,提高用户体验,避免了EPC作为汇聚点和分流点时,对无线局域网的网络链路的质量变化不敏感导致的业务不连续。
应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者 网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (26)

  1. 一种传输数据的方法,其特征在于,包括:
    基站获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
    所述基站向分流设备发送所述协议数据单元,所述基站的媒体接入控制MAC地址和所述用户设备的MAC地址,所述基站的MAC地址和所述用户设备的MAC地址用于将所述协议数据单元经由所述分流设备通过无线局域网分流至所述用户设备。
  2. 如权利要求1所述的方法,其特征在于,当所述分流设备为无线局域网接入点WLAN AP时,所述基站向分流设备发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,具体包括:
    所述基站向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于所述WLAN AP将所述协议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
  3. 如权利要求1所述的方法,其特征在于,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述基站向分流设备发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,具体包括:
    所述基站向所述WLAN AC发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,用于所述WLAN AC通过CAPWAP隧道向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于将所述协议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
  4. 如权利要求2或3所述的方法,其特征在于,还包括:
    所述基站向所述WLAN AP或者WLAN AC发送承载所述协议数据单元对应的承载标识。
  5. 如权利要求1至4任一项所述的方法,其特征在于,还包括:
    所述基站向所述用户设备发送所述基站的MAC地址;
    所述基站接收所述用户设备发送的所述用户设备的MAC的地址。
  6. 如权利要求1至5任一项所述的方法,其特征在于:
    所述基站的MAC地址为源地址,所述用户设备的MAC地址为目标地址。
  7. 如权利要求1至6任一项所述的方法,其特征在于:
    所述基站向所述用户设备发送所述基站的互联网协议IP地址;
    所述基站接收所述用户设备发送的所述用户设备的IP地址。
  8. 一种传输数据的方法,其特征在于,包括:
    基站获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
    所述基站向分流设备发送所述协议数据单元,所述基站的互联网协议IP地址,所述用户设备的外网IP地址,用于将所述协议数据单元经由分流设备通过无线局域网分流至所述用户设备。
  9. 如权利要求8所述的方法,其特征在于,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述基站向分流设备发送所述协议数据单元,所述基站的IP地址和所述用户设备的外网IP地址,具体包括:
    所述基站向所述WLAN AC发送所述协议数据单元,所述基站的IP地址和所述用户设备的外网IP地址,用于所述WLAN AC向所述WLAN AP发送所述协议数据单元,所述基站的IP地址,所述用户设备的内网IP地址,所述基站的IP地址用于所述用户设备确定所述协议数据单元由所述基站发送,所述用户设备的外网IP地址用于所述WLAN AC确定所述协议数据单元待发送至所述用户设备,并用于所述WLAN AC获取所述用户设备的内网IP地址。
  10. 如权利要求8或9所述的方法,其特征在于,还包括:
    所述基站向所述WLAN AC发送承载所述协议数据单元对应的承载标识。
  11. 如权利要求8至10任一项所述的方法,其特征在于,还包括:
    所述基站指示所述用户设备通过所述无线局域网向所述基站发送以下至少一个数据包:
    IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
    所述至少一个数据包包括所述用户设备的内网IP地址。
  12. 如权利要求8至11任一项所述的方法,其特征在于,还包括:
    所述基站向所述用户设备发送所述基站的IP地址。
  13. 如权利要求12所述的方法,其特征在于:
    所述至少一个数据包还包括所述用户设备的UDP端口号和所述基站的UDP端口号,或者包括所述用户设备的TCP端口号和所述基站的TCP端口号。
  14. 一种基站,其特征在于,包括:
    接收单元,用于获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
    发送单元,用于向分流设备发送所述协议数据单元,所述基站的媒体接入控制MAC地址和所述用户设备的MAC地址,所述基站的MAC地址和所述用户设备的MAC地址用于将所述协议数据单元经由所述分流设备通过无线局域网分流至所述用户设备。
  15. 如权利要求14所述的基站,其特征在于,当所述分流设备为无线局域网接入点WLAN AP时,所述发送单元,具体用于:
    向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于所述WLAN AP将所述协议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
  16. 如权利要求14所述的基站,其特征在于,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述发送单元,具体用于:
    向所述WLAN AC发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,用于所述WLAN AC通过无线接入点控制和配置CAPWAP隧道向所述WLAN AP发送所述协议数据单元,所述基站的MAC地址和所述用户设备的MAC地址,所述用户设备的MAC地址用于将所述协议数据单元发送至所述用户设备,所述基站的MAC地址用于所述用户设备确定所述协议数据单元由所述基站发送。
  17. 如权利要求15或16所述的基站,其特征在于,所述发送单元还还用于:
    向所述WLAN AP或者所述WLAN AC发送承载所述协议数据单元对应的承载标识。
  18. 如权利要求14至17任一项所述的基站,其特征在于:
    所述发送单元还用于向所述用户设备发送所述基站的MAC地址;
    所述接收单元还用于接收所述用户设备发送的所述用户设备的MAC的地址。
  19. 如权利要求14至18任一项所述的基站,其特征在于:
    所述基站的MAC地址为源地址,所述用户设备的MAC地址为目标地址。
  20. 如权利要求14至19任一项所述的基站,其特征在于:
    所述发送单元还用于向所述用户设备发送所述基站的互联网协议IP地址;
    所述接收单元还用于接收所述用户设备发送的所述用户设备的IP地址。
  21. 一种基站,其特征在于,包括:
    接收单元,用于获取下行数据,所述下行数据包括基站待发送至用户设备的协议数据单元;
    发送单元,用于向分流设备发送所述协议数据单元,所述基站的互联网协议IP地址,所述用户设备的外网IP地址,用于将所述协议数据单元经由所述分流设备通过无线局域网分流至所述用户设备。
  22. 如权利要求21所述的基站,其特征在于,当所述分流设备包括无线局域网接入点WLAN AP和无线局域网接入控制器WLAN AC时,所述发送单元,具体用于:
    向所述WLAN AC发送所述协议数据单元,所述基站的IP地址和所述用户设备的外网IP地址,用于所述WLAN AC向所述WLAN AP发送所述协议数据单元,所述基站的IP地址,所述用户设备的内网IP地址,所述基站的IP地址用于所述用户设备确定所述协议数据单元由所述基站发送,所述用户设备的外网IP地址用于所述WLAN AC确定所述协议数据单元待发送至所述用户设备,并用于所述WLAN AC获取所述用户设备的内网IP地址。
  23. 如权利要求21或22所述的基站,其特征在于,所述发送单元还用于:
    向所述WLAN AC发送承载所述协议数据单元对应的承载标识。
  24. 如权利要求21至23任一项所述的基站,其特征在于,所述发送单元还用于指示所述用户设备通过所述无线局域网向所述基站发送以下至少一个数据包:
    IP数据包,传输控制协议TCP数据包,或用户数据协议UDP数据包;
    所述至少一个数据包包括所述用户设备的内网IP地址。
  25. 如权利要求21至24任一项所述的基站,其特征在于,所述发送单元还用于向所述用户设备发送所述基站的IP地址。
  26. 如权利要求24所述的基站,其特征在于:
    所述至少一个数据包还包括所述用户设备的UDP端口号和所述基站的UDP端口号,或者包括所述用户设备的TCP端口号和所述基站的TCP端口号。
PCT/CN2014/091122 2014-11-14 2014-11-14 数据传输方法及设备 WO2016074222A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480010657.4A CN106171003B (zh) 2014-11-14 2014-11-14 数据传输方法及设备
PCT/CN2014/091122 WO2016074222A1 (zh) 2014-11-14 2014-11-14 数据传输方法及设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/091122 WO2016074222A1 (zh) 2014-11-14 2014-11-14 数据传输方法及设备

Publications (1)

Publication Number Publication Date
WO2016074222A1 true WO2016074222A1 (zh) 2016-05-19

Family

ID=55953613

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/091122 WO2016074222A1 (zh) 2014-11-14 2014-11-14 数据传输方法及设备

Country Status (2)

Country Link
CN (1) CN106171003B (zh)
WO (1) WO2016074222A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582011A (zh) * 2012-07-26 2014-02-12 中兴通讯股份有限公司 一种进行多网络联合传输的系统、用户设备及方法
CN103582079A (zh) * 2012-08-10 2014-02-12 中兴通讯股份有限公司 一种联合传输的实现方法和系统
CN103686859A (zh) * 2012-09-17 2014-03-26 中兴通讯股份有限公司 一种基于多网络联合传输的分流方法、系统及接入网网元
WO2014056173A1 (en) * 2012-10-11 2014-04-17 Broadcom Corporation Cellular assisted non-cellular access point discovery
CN104038967A (zh) * 2013-03-06 2014-09-10 电信科学技术研究院 一种数据流传输方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103517340A (zh) * 2012-06-30 2014-01-15 华为技术有限公司 数据分流方法与设备
CN103826263B (zh) * 2012-11-16 2017-11-03 中国移动通信集团公司 一种网络分流方法和设备
CN103999507B (zh) * 2012-11-30 2018-11-06 华为技术有限公司 通信方法、基站及用户设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582011A (zh) * 2012-07-26 2014-02-12 中兴通讯股份有限公司 一种进行多网络联合传输的系统、用户设备及方法
CN103582079A (zh) * 2012-08-10 2014-02-12 中兴通讯股份有限公司 一种联合传输的实现方法和系统
CN103686859A (zh) * 2012-09-17 2014-03-26 中兴通讯股份有限公司 一种基于多网络联合传输的分流方法、系统及接入网网元
WO2014056173A1 (en) * 2012-10-11 2014-04-17 Broadcom Corporation Cellular assisted non-cellular access point discovery
CN104038967A (zh) * 2013-03-06 2014-09-10 电信科学技术研究院 一种数据流传输方法及装置

Also Published As

Publication number Publication date
CN106171003B (zh) 2020-06-05
CN106171003A (zh) 2016-11-30

Similar Documents

Publication Publication Date Title
US10412650B2 (en) Data transmission method, apparatus and system
US10098173B2 (en) Data transmission method and device
US20210068176A1 (en) Communication Method And Communications Apparatus
EP3213580B1 (en) Method and apparatus of lwa pdu routing
US10219178B2 (en) Channel aggregation using Wi-Fi
US10764813B2 (en) Managing mobility between a cellular network and a wireless local area network (WLAN)
CN110505714B (zh) 多链接通信方法、设备和终端
CN109315008B (zh) 多连接通信方法和设备
WO2019157985A1 (zh) 一种无线回传通信处理方法和相关设备
JP2017147746A (ja) データ分流のための方法およびデバイス
WO2017000760A2 (zh) 无线网络功能的配置方法、无线网络节点及核心网设备
WO2017032039A1 (zh) 一种数据承载转接的方法及装置
TWI720571B (zh) 無線電間接入技術切換
US10701591B2 (en) Data transmission method, apparatus, and system
WO2015062063A1 (zh) 传输数据的方法、装置和系统
CN106211809B (zh) 一种数据传输方法、装置及系统
CN106465439B (zh) 多流聚合方法、装置及系统
WO2016074222A1 (zh) 数据传输方法及设备
WO2016154828A1 (zh) 一种数据传输方法、装置及系统
WO2016161551A1 (zh) 用于多流汇聚的方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14905724

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14905724

Country of ref document: EP

Kind code of ref document: A1