WO2017032039A1 - 一种数据承载转接的方法及装置 - Google Patents

一种数据承载转接的方法及装置 Download PDF

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Publication number
WO2017032039A1
WO2017032039A1 PCT/CN2016/080824 CN2016080824W WO2017032039A1 WO 2017032039 A1 WO2017032039 A1 WO 2017032039A1 CN 2016080824 W CN2016080824 W CN 2016080824W WO 2017032039 A1 WO2017032039 A1 WO 2017032039A1
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data bearer
data
air interface
base station
bearer
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PCT/CN2016/080824
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English (en)
French (fr)
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雷艺学
李明菊
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2017032039A1 publication Critical patent/WO2017032039A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • the present invention relates to the field of communications technologies, and in particular, to a data bearer switching method and apparatus.
  • LTE Long Term Evolution Advanced
  • WLAN Wireless Local Area Networks
  • the existing integration technologies of WLAN and cellular networks are mainly defined in 3GPP.
  • 3GPP There are two existing solutions in 3GPP, one is integration in the core network [refer to TS 23.402], and the other is integration at the radio access network (RANRadio Access Network, RAN) [refer to TS 23.401, TS 36.304, TS 36.331] .
  • the integration at the RAN level is a RAN-assisted WLAN interworking solution defined by 3GPP. Regardless of whether it is a core network integration solution or a RAN-assisted WLAN interworking solution, the access layer (Access Stratum, AS for short) does not support aggregation of user plane data. Therefore, WLANs cannot be fully utilized for flexible and efficient traffic aggregation transmission.
  • the access layer Access Stratum, AS for short
  • the access point (AP) of the WLAN access point (AP) on the unlicensed spectrum can be used as a secondary cell (Scell) to improve throughput.
  • Scell secondary cell
  • the technical problem to be solved by the embodiments of the present invention is to provide a method and device for data bearer switching. To solve the management problem when the data bearer between the WLAN and the LTE aggregation network is transferred between the base station and the WLAN AP.
  • a data bearer transfer method including:
  • the data bearer is initially established in the WLAN access point based on the WLAN air interface, before the data bearer is uploaded to the base station based on the Uu air interface, the data bearer is marked by using the first identifier to obtain the first data bearer.
  • the first data bearer is selected to be offloaded to the wireless local area network access point according to the first identifier;
  • the data bearer is marked by using the second identifier when the data bearer is offloaded to the wireless local area network access point based on the wireless local area network air interface.
  • the second data bearer when the bearer needs to be uploaded from the WLAN access point, selects the second data bearer to be uploaded to the base station according to the second identifier.
  • the first identifier is generated and saved in a terminal context when the data bearer is initially established based on a wireless local area network air interface, and the second identifier is offloaded from the base station to the wireless local area network access point in the data bearer. It is generated and saved in the terminal context.
  • the method further includes:
  • the transit configuration information includes a terminal context and a quality of service parameter carried by the evolved packet system.
  • the method further includes:
  • the attributes of the WLAN air interface are the same as those of the Uu air interface;
  • the base station can bear the control plane signaling under the signal strength of the current location, the control plane signaling is transmitted through the Uu air interface, and the radio resource control connection is established, and the data bearer is established through the WLAN air interface;
  • the control plane signaling is transmitted through the WLAN air interface and the radio resource control connection is established, and the data bearer is established through the WLAN air interface.
  • the method further includes:
  • Whether to perform data bearer transfer is determined based on the average packet loss data and/or the average delay data.
  • Whether to perform data bearer transfer is determined based on the average packet loss data and/or the average delay data.
  • a second aspect of the embodiments of the present invention provides a device for data bearer switching, including:
  • the identifier unit is configured to: if the data bearer is initially established in the WLAN access point based on the WLAN air interface, before the data bearer is uploaded to the base station based on the Uu air interface, use the first identifier to mark the data bearer to obtain the first data.
  • a selecting unit configured to: when the carrier needs to be offloaded from the base station, select, according to the first identifier, the first data bearer to be offloaded to the wireless local area network access point;
  • the identifier unit is further configured to: if the data bearer is initially established in the base station based on the Uu air interface, use the second identifier when the data bearer is offloaded to the wireless local area network access point based on the wireless local area network air interface Marking the data bearer to obtain a second data bearer;
  • the selecting unit is further configured to: when the bearer needs to be uploaded from the WLAN access point, select the second data bearer to be uploaded to the base station according to the second identifier.
  • the first identifier is generated when the data bearer is initially established based on a wireless local area network air interface. And stored in a terminal context, the second identifier is generated and saved in the terminal context when the data bearer is offloaded from the base station to the wireless local area network access point.
  • a saving unit configured to save the transfer configuration information of the radio resource control layer and the packet data convergence protocol layer
  • a sending unit configured to send the transit configuration information of the RRC layer and the packet data convergence protocol layer to a target base station to be subjected to data bearer offloading; and to the radio link control layer and the medium access control layer Transfer configuration information is marked and sent to the wireless local area network access point;
  • the transit configuration information includes a terminal context and a quality of service parameter carried by the evolved packet system.
  • a transmission configuration unit configured to indicate that the base station simulates completion of Uu air interface data bearer establishment; in the radio resource control layer and the packet data convergence protocol layer, the WLAN air interface has the same attribute as the Uu air interface; if the signal strength of the current location is The base station can carry control plane signaling, transmit control plane signaling through the Uu air interface, establish a radio resource control connection, and establish a data bearer through the WLAN air interface; and if the base station cannot bear the control under the signal strength of the current location For face signaling, the control plane signaling is transmitted through the WLAN air interface and the radio resource control connection is established, and the data bearer is established through the WLAN air interface.
  • a calculation determining unit configured to collect packet loss data and/or delay data of the wireless local area network air interface within a preset time; calculate average packet loss data and/or average delay data per unit time; and according to the average packet loss data and/or Or average latency data to determine if a data bearer transfer is in progress.
  • the transferred data bearer is marked by using the identification information, and the next marked reversed data bearer transfer can preferentially select the marked part.
  • Data bearer which eliminates the need for complex signaling interactions such as bearer setup and bearer deletion in the core network, greatly improving the efficiency of data bearer transfer, saving signaling overhead, and being detachable by the WLAN network for the LTE network.
  • the bandwidth pressure of the LTE network improves the efficiency of service stream transmission, improves the user experience, and helps reduce the power consumption of the device.
  • FIG. 1a is a schematic diagram of an application scenario according to an embodiment of the present invention.
  • FIG. 1b is a schematic diagram of another application scenario according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a first embodiment of a method for data bearer switching according to the present invention
  • FIG. 3 is a schematic flow chart of a second embodiment of a method for data bearer switching according to the present invention.
  • FIG. 4 is a schematic flow chart of a third embodiment of a method for data bearer switching according to the present invention.
  • FIG. 5 is a schematic flowchart of a fourth embodiment of a method for data bearer switching according to the present invention.
  • FIG. 6 is a schematic diagram showing the composition of a first embodiment of the apparatus for data bearer switching according to the present invention.
  • FIG. 7 is a schematic diagram showing the composition of a second embodiment of the apparatus for data bearer switching of the present invention.
  • FIG. 8 is a schematic diagram showing the composition of a third embodiment of the apparatus for data bearer switching of the present invention.
  • FIG. 9 is a schematic diagram showing the composition of a fourth embodiment of the apparatus for data bearer switching of the present invention.
  • the proposed technical solution includes a terminal, a base station, a wireless local area network access point, and a core network, and a lightning-shaped connection line between the terminal and the base station or the wireless local area network access point indicates that the terminal can access the base station or the wireless local area network.
  • Point for wireless communication there is no direct logical interface between the WLAN access point and the core network; and the logical interface between the WLAN access point and the base station is interconnected; the base station and the core network are connected by the solid line Path communication.
  • the data bearer on the base station can be offloaded or offloaded to the WLAN access point, and the bearer on the WLAN access point can be uploaded to the base station.
  • the logical interface between the two is the internal interface of the network element. For details, refer to FIG. 1b.
  • a single terminal, a single base station, and a single wireless local area network access point are provided.
  • the embodiment of the present invention is also applicable, and the base station and the wireless local area network access point can be performed.
  • a one-to-one or one-to-many or many-to-one mapping, and the mapping relationship is saved in the macro base station in the form of a context, so that when there is an unloading or uploading requirement, the mapping relationship and the communication state of the device can be selected.
  • FIG. 2 is a schematic flowchart of a first embodiment of a method for data bearer switching according to the present invention.
  • the method includes the following steps:
  • the data bearer is initially established in the WLAN access point based on the WLAN air interface, before the data bearer is uploaded to the base station based on the Uu air interface, the data bearer is marked by using the first identifier to obtain the first data bearer.
  • the first data bearer is selected to be offloaded to the wireless local area network access point according to the first identifier.
  • the first identifier is generated and saved in a terminal context when the data bearer is initially established based on a wireless local area network air interface.
  • the second identifier is generated and saved in the terminal context when the data bearer is offloaded from the base station to the wireless local area network access point.
  • one PDCP entity corresponds to one RLC entity, and if the data bearer of the RLC entity is carried by the WLAN AP, Then, an identifier may be added in the terminal context to indicate that the data bearer is currently carried by the WLAN AP. And the terminal context is transferred to the target base station to be carried forwarded when the data bearer is transferred.
  • the data bearer For the initial data bearer to be established from the Uu air interface, the data bearer is initially established in the base station, and may be added to the terminal context when the data bearer is offloaded to the WLAN AP. For the case where the initial data bearer is established through the WLAN AP, an identifier may be added to the terminal context during the data bearer setup process.
  • the bearer setup signaling and the traffic switch signaling based on the Radio Resource Control (RRC) may also include the identifier, that is, an indication of adding a bit in the system information element of the RRC.
  • RRC Radio Resource Control
  • the bearer split is supported.
  • One PDCP entity corresponds to two RLC entities, and the two RLC entities can correspond to one data bearer identifier, that is, in the uplink and downlink directions, the WLAN AP-based data bearer and the base station.
  • the data carries a common identity.
  • a PDCP packet can be divided into two RLC packets for transmission.
  • One RLC packet arrives at the base station through the Uu air interface, and the other reaches the base station through the WLAN air interface.
  • the two follow the same encapsulation format and have the same identifier.
  • the partial offload of the data bearer may be marked, and the identifier is saved in the terminal context. And the terminal context is transferred to the target base station to be carried forwarded when the data bearer is transferred.
  • the part of the upload of the data bearer may be marked, and the terminal context is transferred to the pending data transfer The target base station carrying the handover.
  • the target base station in this embodiment may be an initial macro base station, and the macro base station already knows the terminal context content, so that the related base station may not need to send related information, but when the target base station is not the initial macro base station, but the handover is performed.
  • the base station After the base station is switched by the switched base station and the WLAN AP, it must be sent to the target base station by the initial macro base station containing the identifier information.
  • the selection of the upload and unload data bearers may depend on the configuration or rules including the following but not limited to any of the following: configuration of the network side entity (such as a mobility management entity) or access network discovery and selection Access Network Discovery and Selection Function (ANDSF) rules or Radio Access Network (RAN) rules.
  • configuration of the network side entity such as a mobility management entity
  • ANDSF Access Network Discovery and Selection Function
  • RAN Radio Access Network
  • the transferred data bearer is marked by using the identification information, and the next marked reversed data bearer transfer can preferentially select the marked part.
  • Data bearer which eliminates the need for complex signaling interactions such as bearer setup and bearer deletion in the core network, greatly improving the efficiency of data bearer transfer, saving signaling overhead, and being detachable by the WLAN network for the LTE network.
  • the bandwidth pressure of the LTE network improves the efficiency of service stream transmission, improves the user experience, and helps reduce the power consumption of the device.
  • the aggregation and offloading and uploading of the LTE network and the WLAN network are described in detail, but those skilled in the art can understand that, in view of the low cost advantages of the WLAN network, It is also possible to aggregate with other networks such as 3G, 4G or 5G, and transmit the aggregated service flow in the manner described in the embodiment of the present invention.
  • FIG. 3 it is a schematic flowchart of a second embodiment of a data bearer switching method according to the present invention.
  • the method further includes:
  • the transfer configuration information of the Radio Resource Control (RRC) layer and the Packet Data Convergence Protocol (PDCP) layer is sent to the target base station to be data offloaded.
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • the transfer of the data bearer can be completed according to the transfer configurations.
  • the foregoing handover configuration information includes a terminal context and a quality of service (QoS) parameter carried by an Evolved Packet System (EPS).
  • QoS quality of service
  • EPS Evolved Packet System
  • the transfer configuration information above the PDCP layer is guaranteed.
  • the transfer is sent to the target base station, and the transfer configuration information does not need to be modified; and the transfer configuration information below the PDCP layer is marked to distinguish whether it is transmitted through the WLAN air interface or the Uu air interface.
  • the first data bearer is selected to be offloaded to the wireless local area network access point according to the first identifier.
  • a layered management mechanism for handover configuration information such as terminal context, QoS, and the like is added, which can facilitate distinguishing between the start and end points of the data bearer transfer, and determining the part of the data bearer of the transfer.
  • FIG. 4 it is a schematic flowchart of a third embodiment of a method for data bearer switching according to the present invention.
  • the method further includes:
  • the WLAN air interface has the same attribute as the Uu air interface.
  • the base station When the data bearer is initially established on the WLAN AP, the base station still needs to simulate the process of completing the Uu air interface data bearer establishment.
  • the WLAN air interface is configured with the same attributes as the Uu air interface, that is, the difference between the underlying WLAN air interface and the Uu air interface is shielded, so that the data bearer can be wireless during the data bearer transfer process. Smooth transmission between the LAN air interface and the Uu air interface for seamless connection.
  • the base station can carry control plane signaling in the signal strength of the current location, the control plane signaling is transmitted through the Uu air interface, and the radio resource control connection is established, and the data bearer is established through the wireless local area network air interface.
  • the relevant control plane signaling is transmitted through the Uu air interface, and the data is transmitted through the wireless local area network air interface.
  • the terminal accesses the network by the base station under normal conditions, and the base station transmits an E-UTRAN Cell Global Identifier (E-UTRAN Cell Global Identifier, E-referred to as E--Evolved-Universal Mobile Communication System) to the core network.
  • E-UTRAN Cell Global Identifier E-referred to as E--Evolved-Universal Mobile Communication System
  • CGI Complete network registration.
  • the base station cannot obtain the cell global identifier accessed by the terminal, and the terminal can use equivalent or virtual cell parameters such as E-CGI.
  • PDN Packet Data Network
  • the processing of the user plane is consistent, that is, the WLAN air interface is used as the air interface of the bottom layer transmission.
  • IPsec IP security protocol
  • Steps S406-S409 are the same as S302-S305 shown in FIG. 3, and details are not described herein again.
  • the scenario in which the data bearer is initially established on the WLAN AP is described in detail, and the possible situation of the user plane of the control plane is analyzed, and the handover mode in this embodiment can be used to implement the base station to the WLAN.
  • the seamless connection of the AP eliminates the need to release or modify the EPS bearer.
  • FIG. 5 is a schematic flowchart of a fourth embodiment of a method for data bearer switching according to the present invention.
  • the method includes:
  • the packet loss data and/or delay data of the wireless local area network air interface is counted within a preset time.
  • S504. Determine whether to perform data bearer transfer according to the average packet loss data and/or the average delay data.
  • the WLAN air interface itself is prone to packet loss or delay, and the transmission characteristics are constantly changing, in order to avoid frequent Evolved Packet Core (EPC) signaling generation, packet loss and delay can be performed on the WLAN air interface. For a certain period of time, the average result is used as a basis to decide whether it is necessary to switch back to the macro base station instead of dynamically modifying or re-negotiating the QoS parameters.
  • EPC Evolved Packet Core
  • FIG. 6 it is a schematic diagram of a first embodiment of a device for data bearer switching according to the present invention.
  • the device includes:
  • the identifier unit 10 is configured to: if the data bearer is initially established in the WLAN access point based on the WLAN air interface, before the data bearer is uploaded to the base station based on the Uu air interface, mark the data bearer with the first identifier to obtain the first Data bearer
  • the selecting unit 20 is configured to: when the bearer needs to be offloaded from the base station, select, according to the first identifier, the first data bearer to be offloaded to the wireless local area network access point;
  • the identifier unit 10 is further configured to: if the data bearer is initially established in the base station based on the Uu air interface, use the second when the data bearer is offloaded to the wireless local area network access point based on the wireless local area network air interface Identifying, by the identifier, marking the data bearer to obtain a second data bearer;
  • the selecting unit 20 is further configured to: when the carrier needs to be uploaded from the WLAN access point, select the second data bearer to upload to the base station according to the second identifier.
  • the first identifier is generated and saved in a terminal context when the data bearer is initially established based on a wireless local area network air interface, where the second identifier is offloaded from the base station to the wireless local area network. Generated at the point of entry and saved in the terminal context.
  • FIG. 7 a schematic diagram of a second embodiment of a device for data bearer switching according to the present invention is provided.
  • the device in this embodiment adds:
  • the saving unit 30 is configured to save the transfer configuration information of the radio resource control layer and the packet data convergence protocol layer;
  • the sending unit 40 is configured to send the transit configuration information of the RRC layer and the packet data convergence protocol layer to a target base station to be subjected to data bearer offloading; and to the radio link control layer and the medium access control layer The transfer configuration information is marked and sent to the wireless local area network access point;
  • the transit configuration information includes a terminal context and a quality of service parameter carried by the evolved packet system.
  • FIG. 8 is a schematic diagram of a third embodiment of a device for data bearer switching according to the present invention.
  • the device in this embodiment adds:
  • the transmission configuration unit 50 is configured to indicate that the base station simulates the completion of the Uu air interface data bearer establishment; in the configuration of the radio resource control layer and the packet data convergence protocol layer, the attributes of the WLAN air interface and the Uu air interface are the same; if the signal strength of the current location is The base station can carry control plane signaling, and then passes Uu The air interface transmits control plane signaling and establishes a radio resource control connection, and performs data bearer establishment through the WLAN air interface; and if the base station cannot bear control plane signaling under the signal strength of the current location, the control plane is transmitted through the WLAN air interface Signaling and establishment of a radio resource control connection, and data bearer establishment through a wireless LAN air interface.
  • FIG. 9 a schematic diagram of a fourth embodiment of a device for data bearer switching according to the present invention is provided.
  • the terminal in the embodiment is increased compared with the terminal shown in FIG.
  • the calculation determining unit 60 is configured to collect packet loss data and/or delay data of the WLAN air interface within a preset time; calculate average packet loss data and/or average delay data per unit time; and according to the average packet loss data and / or average delay data to determine whether to carry out data bearer transfer.
  • the device for data bearer switching described in this embodiment may exist independently, or may be integrated in a base station or a wireless local area network access point or even a terminal, which is not limited in the embodiment of the present invention.
  • aspects of the present invention, or possible implementations of various aspects may be embodied as a system, method, or computer program product.
  • aspects of the invention, or possible implementations of various aspects may take the form of a computer program product, which is a computer readable program code stored in a computer readable medium.
  • the computer readable medium can be a computer readable data medium or a computer readable storage medium.
  • the computer readable storage medium includes, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing, such as random access memory (RAM), read only memory (ROM), Erase programmable read-only memory (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).
  • a processor in a computer reads computer readable program code stored in a computer readable medium, such that the processor can perform the functional actions specified in each step or combination of steps in the flowchart;
  • a device that implements the functional actions specified in each block of the block diagram or a combination of blocks is generated.
  • the computer readable program code can execute entirely on the user's computer, partly on the user's computer, as a separate software package, partly on the user's local computer and partly on the remote computer, or entirely on the remote computer or server. carried out. It should also be noted that in some alternative implementations, the functions noted in the various steps in the flowcharts or in the blocks in the block diagrams may not occur in the order noted. For example, two steps, or two blocks, shown in succession may be executed substantially concurrently or the blocks may be executed in the reverse order.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the functional units is only a logical function division.
  • there may be other division manners for example, multiple units may be combined into the same subsystem.

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Abstract

本发明实施例公开了一种数据承载转接的方法及装置，所述方法包括：若数据承载基于WLAN空口初始建立在WLAN AP，则在数据承载基于Uu空口上载到基站之前，使用第一标识对数据承载进行标记得到第一数据承载，当需要从基站卸载承载时，根据第一标识选取第一数据承载卸载至WLAN AP；若数据承载基于Uu空口初始建立在基站，则在数据承载基于WLAN空口卸载到WLAN AP时，使用第二标识对数据承载进行标记得到第二数据承载，当需要从WLAN AP上载承载时，根据第二标识选取第二数据承载上载至基站。采用本发明，可对在基站与WLAN AP之间转接的数据承载进行管理，提高转接的效率。

Description

一种数据承载转接的方法及装置
本申请要求于2015年08月24日提交中国专利局，申请号为201510523987.X、发明名称为“一种数据承载转接的方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种数据承载转接的方法及装置。
背景技术
随着各种移动应用的发展以及移动终端用户的不断增加，现有无线通信系统如第四代移动通信技术(the 4th Generation mobile communication technology，简称4G)系统长期演进(Long Term Evolution，简称LTE)、长期演进升级版(Long Term EvolutionAdvanced，简称LTE-A)无法满足用户对高速无线接入的带宽需求。与此同时，在提高接入带宽的同时，如何降低成本也是一个非常重要的因素。利用无线局域网(Wireless Local Area Networks，简称WLAN)的低成本优势来弥补LTE及其增强技术LTE-A在带宽上的不足，成为一个非常有前景的方向。
现有的WLAN与蜂窝网络的整合技术主要在3GPP进行定义。3GPP现有方案分两种，一种是在核心网的整合[参考TS 23.402]，一种是在无线接入网(RANRadioAccessNetwork，简称RAN)层面进行整合[参考TS 23.401,TS 36.304,TS 36.331]。在RAN层面的整合是3GPP定义的RAN辅助的WLAN互通方案。不论是核心网整合方案还是RAN辅助的WLAN互通方案，都不支持在接入层(Access Stratum，简称AS)对用户面数据进行聚合。因此，尚且不能充分利用WLAN进行灵活和高效率的流量汇聚传输。随着载波聚合技术的不断发展，可以将运行在非授权频谱上的WLAN接入点AP(Access Point，简称AP)作为辅服务小区(Secondary Cell,简称Scell)来提高吞吐量。但是对于数据承载在基站与WLAN AP之间转接时如何进行管理并没有相关的方 案。
发明内容
本发明实施例所要解决的技术问题在于，提供一种数据承载转接的方法及装置。以解决WLAN与LTE聚合网络中数据承载在基站与WLAN AP之间转接时的管理问题。
为了解决上述技术问题，本发明实施例第一方面提供了一种数据承载转接的方法，包括：
若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载，当需要从所述基站卸载承载时，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点；
若所述数据承载基于Uu空口初始建立在所述基站，则在所述数据承载基于所述无线局域网空口卸载到所述无线局域网接入点时，使用第二标识对所述数据承载进行标记得到第二数据承载，当需要从所述无线局域网接入点上载承载时，根据所述第二标识选取所述第二数据承载上载至所述基站。
其中，所述第一标识在所述数据承载基于无线局域网空口初始建立时生成并保存在终端上下文中，所述第二标识在所述数据承载从所述基站卸载至所述无线局域网接入点时生成并保存在终端上下文中。
其中，当需要从所述基站卸载承载时，还包括：
保存无线资源控制层和分组数据汇聚协议层的转接配置信息；
将所述无线资源控制层和分组数据汇聚协议层的转接配置信息发送至待进行数据承载卸载的目标基站；
对所述无线链路控制层和媒体接入控制层的转接配置信息进行标示并发送至所述无线局域网接入点；
其中，所述转接配置信息包括终端上下文以及演进的分组系统承载的服务质量参数。
其中，若数据承载基于无线局域网空口初始建立在无线局域网接入点，还包括：
指示所述基站模拟完成Uu空口数据承载建立；
配置无线资源控制层和分组数据汇聚协议层中，无线局域网空口与Uu空口的属性相同；
若在当前位置的信号强度下所述基站可承载控制面信令，则通过Uu空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立；
若在当前位置的信号强度下所述基站无法承载控制面信令，则通过无线局域网空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立。
其中，当需要从所述基站卸载承载时，或者当需要从所述无线局域网接入点上载承载时，还包括：
统计预设时间内所述无线局域网空口的丢包数据和/或延迟数据；
计算单位时间的平均丢包数据和/或平均延迟数据；
根据所述平均丢包数据和/或平均延迟数据确定是否进行数据承载转接。
统计预设时间内所述无线局域网空口的丢包数据和/或延迟数据；
计算单位时间的平均丢包数据和/或平均延迟数据；
根据所述平均丢包数据和/或平均延迟数据确定是否进行数据承载转接。
本发明实施例第二方面提供了一种数据承载转接的装置，包括：
标识单元，用于若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载；
选取单元，用于当需要从所述基站卸载承载时，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点；
所述标识单元，还用于若所述数据承载基于Uu空口初始建立在所述基站，则在所述数据承载基于所述无线局域网空口卸载到所述无线局域网接入点时，使用第二标识对所述数据承载进行标记得到第二数据承载；
所述选取单元，还用于当需要从所述无线局域网接入点上载承载时，根据所述第二标识选取所述第二数据承载上载至所述基站。
其中，所述第一标识在所述数据承载基于无线局域网空口初始建立时生成 并保存在终端上下文中，所述第二标识在所述数据承载从所述基站卸载至所述无线局域网接入点时生成并保存在终端上下文中。
其中，还包括：
保存单元，用于保存无线资源控制层和分组数据汇聚协议层的转接配置信息；
发送单元，用于将所述无线资源控制层和分组数据汇聚协议层的转接配置信息发送至待进行数据承载卸载的目标基站；以及对所述无线链路控制层和媒体接入控制层的转接配置信息进行标示并发送至所述无线局域网接入点；
其中，所述转接配置信息包括终端上下文以及演进的分组系统承载的服务质量参数。
其中，还包括：
传输配置单元，用于指示所述基站模拟完成Uu空口数据承载建立；配置无线资源控制层和分组数据汇聚协议层中，无线局域网空口与Uu空口的属性相同；若在当前位置的信号强度下所述基站可承载控制面信令，则通过Uu空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立；以及若在当前位置的信号强度下所述基站无法承载控制面信令，则通过无线局域网空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立。
其中，还包括：
计算确定单元，用于统计预设时间内所述无线局域网空口的丢包数据和/或延迟数据；计算单位时间的平均丢包数据和/或平均延迟数据；根据所述平均丢包数据和/或平均延迟数据确定是否进行数据承载转接。
实施本发明实施例，具有如下有益效果：
通过在基站与无线局域网接入点进行相互的数据承载转接时，使用标识信息对转接的数据承载进行标记，在下一次进行反向的数据承载转接时，可以优先选取已标记的那部分数据承载，从而无需再进行核心网中的承载建立与承载删除等繁杂的信令交互过程，大大提升了数据承载转接的效率，节省了信令开销，可由WLAN网络为LTE网络分流，降低了LTE网络的带宽压力，提高了业务流传输的效率，提升了用户的业务体验，同时利于降低设备的功耗。
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的前提下，还可以根据这些附图获得其他的附图。
图1a是本发明实施例的一种应用场景的示意图；
图1b是本发明实施例的另一种应用场景的示意图；
图2是本发明数据承载转接的方法的第一实施例的流程示意图；
图3是本发明数据承载转接的方法的第二实施例的流程示意图；
图4是本发明数据承载转接的方法的第三实施例的流程示意图；
图5是本发明数据承载转接的方法的第四实施例的流程示意图；
图6是本发明数据承载转接的装置的第一实施例的组成示意图；
图7是本发明数据承载转接的装置的第二实施例的组成示意图；
图8是本发明数据承载转接的装置的第三实施例的组成示意图；
图9是本发明数据承载转接的装置的第四实施例的组成示意图。
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作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。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
请一并参照图1a和图1b，分别为本发明如图1a所示，在本发明实施例 提出的技术方案所适用的系统中，包括终端、基站、无线局域网接入点以及核心网，终端与基站或无线局域网接入点之间的闪电形连接线表示终端可以与基站或无线局域网接入点进行无线通信；无线局域网接入点与核心网之间没有直接的逻辑接口；而由无线局域网接入点与基站之间的逻辑接口互联通信；基站与核心网之间通过实线所述的通路通信。基站上的数据承载可卸载或分流给无线局域网接入点，无线局域网接入点上的承载可上载至基站。而当基站与无线局域网接入点共址时，二者之间的逻辑接口即成为网元内部的接口，具体可参照图1b所示。
需要说明的是，本实施例仅提供了单终端、单基站以及单无线局域网接入点的场景，对于多设备的场景，本发明实施例同样适用，可以将基站与无线局域网接入点进行一对一或一对多或多对一的映射，并以上下文的形式将映射关系保存在宏基站，这样在存在卸载或上载需求时，便可以根据映射关系及设备的通信状况进行选择。下面，结合图2-图5所述的实施例进行说明。
请参照图2，为本发明数据承载转接的方法的第一实施例的流程示意图，在本实施例中，所述方法包括以下步骤：
S101，若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载，当需要从所述基站卸载承载时，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点。
可选地，所述第一标识在所述数据承载基于无线局域网空口初始建立时生成并保存在终端上下文中。
S102，若所述数据承载基于Uu空口初始建立在所述基站，则在所述数据承载基于所述无线局域网空口卸载到所述无线局域网接入点时，使用第二标识对所述数据承载进行标记得到第二数据承载，当需要从所述无线局域网接入点上载承载时，根据所述第二标识选取所述第二数据承载上载至所述基站。
可选地，所述第二标识在所述数据承载从所述基站卸载至所述无线局域网接入点时生成并保存在终端上下文中。
具体地，对于2C架构，由于其不支持承载分裂(bearer split)，一个PDCP实体对应于一个RLC实体，如果RLC实体的数据承载由WLAN AP来承载， 则可以在终端上下文中增加一个标识，表明该数据承载当前由WLAN AP来承载。且该终端上下文在数据承载发生转接时要一并转移到待进行承载转接的目标基站。
对于初始数据承载从Uu空口建立的业务流即数据承载初始建立在基站，则可以是在数据承载卸载到WLAN AP时，在终端上下文中增加一个标识。而对于初始数据承载建立通过WLAN AP的情形，则可以在数据承载建立过程中，在终端上下文中增加一个标识。而基于无线资源控制(RadioResourceControl，简称RRC)的承载建立信令和流量转接信令中也可以包含这个标识，即在RRC的系统信息元中增加一个比特的指示即可。
而对于3C架构，其支持承载分裂(bearer split)，一个PDCP实体对应两个RLC实体，两个RLC实体可对应一个数据承载的标识，即在上下行方向，基于WLAN AP的数据承载和基于基站的数据承载公用一个标识。一个PDCP包可被切分成2个RLC包来传输，一个RLC包经过Uu空口到达基站，另一个经过WLAN空口到达基站，为了完成组包，二者遵循同样的封装格式，具备同一个标识。
对于初始建立在基站，随后进行部分卸载(partial offload)到WLAN AP时，可对该数据承载的这部分卸载进行标记，且标识保存在终端上下文中。且该终端上下文在数据承载发生转接时要一并转移到待进行承载转接的目标基站。
对于初始建立在WLAN AP，随后部分上载(partial onload)到基站的数据承载，可对该数据承载的这部分上载进行标记，且该终端上下文在数据承载发生转接时要一并转移到待进行承载转接的目标基站。
需要说明的是，本实施例中的目标基站可以是初始的宏基站，此时宏基站已了解终端上下文内容，这样可以无需发送相关信息，而当目标基站不是初始宏基站，而是进行了切换之后的基站，由切换后的基站与WLAN AP完成转接，则此时必须由初始的宏基站包含标识信息的终端上下文发送至目标基站。且在本发明实施例中，对于上载和卸载数据承载的选择可依赖于包括以下但不限于以下任意实体的配置或规则：网络侧实体的配置(如移动管理实体)或者接入网发现和选择功能(Access Network Discoveryand Selection Function，简称ANDSF)规则或者无线接入网(RadioAccessNetwork，简称RAN)规则。
通过在基站与无线局域网接入点进行相互的数据承载转接时，使用标识信息对转接的数据承载进行标记，在下一次进行反向的数据承载转接时，可以优先选取已标记的那部分数据承载，从而无需再进行核心网中的承载建立与承载删除等繁杂的信令交互过程，大大提升了数据承载转接的效率，节省了信令开销，可由WLAN网络为LTE网络分流，降低了LTE网络的带宽压力，提高了业务流传输的效率，提升了用户的业务体验，同时利于降低设备的功耗。
此外，需要说明的是，在本发明实施例中，以LTE网络与WLAN网络的聚合以及卸载和上载进行了详细说明，但本领域技术人员可以理解的是，鉴于WLAN网络低成本的优点，其同样可以与3G、4G或5G等其他网络聚合，并采用本发明实施例所述的方式来传输聚合的业务流。
请参照图3，为本发明数据承载转接的方法的第二实施例的流程示意图，在本实施例中，所述方法还包括：
S301，若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载。
S302，当需要从所述基站卸载承载时，保存无线资源控制层和分组数据汇聚协议层的转接配置信息。
S303，将所述无线资源控制(Radio Resource Control，简称RRC)层和分组数据汇聚协议(Packet Data Convergence Protocol，简称PDCP)层的转接配置信息发送至待进行数据承载卸载的目标基站。
以便目标基站获取到转接配置信息之后可以根据这些转接配置进行完成数据承载的转接。
S304，对所述无线链路控制(Radio Link Control，简称RLC)层和媒体接入控制(Media Access Control，简称MAC)层的转接配置信息进行标示并发送至所述无线局域网接入点。
可选地，以上所述转接配置信息包括终端上下文以及演进的分组系统(Evolved Packet System，简称EPS)承载的服务质量(Quality of Service，简称QoS)参数。
通过对转接配置信息进行分层处理，对于PDCP层以上的转接配置信息保 存并发送给目标基站，且这些转接配置信息均无需修改；而对于PDCP层以下的转接配置信息进行标示以便区分通过WLAN空口还是Uu空口传输。
S305，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点。
在本实施例中，增加了对转接配置信息如终端上下文、QoS等的分层管理机制，可利于区分数据承载转移的起点和终点，以及确定转接的这一部分数据承载。
请参照图4，为本发明数据承载转接的方法的第三实施例的流程示意图，在本实施例中，所述方法还包括：
S401，指示基站模拟完成Uu空口数据承载建立。
S402，配置无线资源控制层和分组数据汇聚协议层中，无线局域网空口与Uu空口的属性相同。
当数据承载初始建立在WLAN AP上时，基站仍需要模拟完成Uu空口数据承载建立的流程。并结合步骤S402中的步骤，在PDCP层以上配置无线局域网空口与Uu空口的属性相同，即屏蔽底层无线局域网空口与Uu空口的区别，使得在数据承载的转接过程中，数据承载可以在无线局域网空口与Uu空口之间进行流畅的传输，实现无缝连接。
S403，若在当前位置的信号强度下所述基站可承载控制面信令，则通过Uu空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立。
即相关控制面信令通过Uu空口传输，而数据通过无线局域网空口传输。
S404，若在当前位置的信号强度下所述基站无法承载控制面信令，则通过无线局域网空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立。
即相关控制面信令和数据均通过无线局域网空口传输。终端在正常情况下由基站接入网络，基站通过向核心网发送终端所接入小区的演进型-通用移动通信系统陆地无线接入网小区全局标识符(E-UTRAN Cell Global Identifier，简称E-CGI)完成网络注册。但在步骤S404的情况下，基站无法获得终端所接入的小区全局标识符，此时终端可使用等效的或者虚拟的小区参数如E-CGI 来完成分组数据网(PacketDataNetwork，简称PDN)连接的建立。
在以上两种情形的处理中，对于用户面的处理是一致的，即均使用WLAN空口作为底层传输的空口。这时候需要区分WLAN AP是否需要额外的安全机制如安全协议(IPsecurityprotocol，简称IPSec)，具体配置可以通过基站的动态信令来实现。
S405，在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载。
步骤S406-S409与图3所示S302-S305相同，此处不再赘述。
在本发明实施例中，对于数据承载初始建立在WLAN AP上的场景进行了详细描述，并对控制面可用户面可能的情况进行分析，采用本实施例中转接方式，可实现基站到WLAN AP的无缝连接，无需进行EPS承载的释放或者修改。
请参照图5，为本发明数据承载转接的方法的第四实施例的流程示意图，在本实施例中，所述方法包括：
S501，若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载。
S502，当需要从所述基站卸载承载时，统计预设时间内所述无线局域网空口的丢包数据和/或延迟数据。
S503，计算单位时间的平均丢包数据和/或平均延迟数据。
S504，根据所述平均丢包数据和/或平均延迟数据确定是否进行数据承载转接。
S505，当确定要进行数据承载转接后，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点。
由于WLAN空口本身容易造成丢包或者延迟，而且这些传输特性是不断变化的，为了避免频繁的演进分组核心(Evolved Packet Core，简称EPC)信令产生，可以在WLAN空口上对丢包和延迟进行一定时间的统计，以平均的结果作为依据来决定是否需要重新切回宏基站，而不是动态地进行QoS参数的修改或者重协商。
请参照图6，为本发明数据承载转接的装置第一实施例的组成示意图，在本实施例中，所述装置包括：
标识单元10，用于若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载；
选取单元20，用于当需要从所述基站卸载承载时，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点；
所述标识单元10，还用于若所述数据承载基于Uu空口初始建立在所述基站，则在所述数据承载基于所述无线局域网空口卸载到所述无线局域网接入点时，使用第二标识对所述数据承载进行标记得到第二数据承载；
所述选取单元20，还用于当需要从所述无线局域网接入点上载承载时，根据所述第二标识选取所述第二数据承载上载至所述基站。
可选地，所述第一标识在所述数据承载基于无线局域网空口初始建立时生成并保存在终端上下文中，所述第二标识在所述数据承载从所述基站卸载至所述无线局域网接入点时生成并保存在终端上下文中。
请参照图7，为本发明数据承载转接的装置的第二实施例的组成示意图，在本实施例中，与图6所示的装置相比，本实施例中的装置增加了：
保存单元30，用于保存无线资源控制层和分组数据汇聚协议层的转接配置信息；
发送单元40，用于将所述无线资源控制层和分组数据汇聚协议层的转接配置信息发送至待进行数据承载卸载的目标基站；以及对所述无线链路控制层和媒体接入控制层的转接配置信息进行标示并发送至所述无线局域网接入点；
其中，所述转接配置信息包括终端上下文以及演进的分组系统承载的服务质量参数。
请参照图8，为本发明数据承载转接的装置的第三实施例的组成示意图，在本实施例中，与图7所示的装置相比，本实施例中的装置增加了：
传输配置单元50，用于指示所述基站模拟完成Uu空口数据承载建立；配置无线资源控制层和分组数据汇聚协议层中，无线局域网空口与Uu空口的属性相同；若在当前位置的信号强度下所述基站可承载控制面信令，则通过Uu 空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立；以及若在当前位置的信号强度下所述基站无法承载控制面信令，则通过无线局域网空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立。
请参照图9，为本发明数据承载转接的装置的第四实施例的组成示意图，在本实施例中，与图8所示的终端相比，本实施例中的终端增加了：
计算确定单元60，用于统计预设时间内所述无线局域网空口的丢包数据和/或延迟数据；计算单位时间的平均丢包数据和/或平均延迟数据；根据所述平均丢包数据和/或平均延迟数据确定是否进行数据承载转接。
需要说明的是，本实施例中所述的数据承载转接的装置可以独立存在，也可以集成在基站或者无线局域网接入点甚至是终端之中，本发明实施例不作任何限定。
上述设备所涉及的与本发明实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或实施例中关于这些内容的描述，此处不做赘述。本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。对于装置实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
本领域普通技术人员将会理解，本发明的各个方面、或各个方面的可能实现方式可以被具体实施为系统、方法或者计算机程序产品。此外，本发明的各方面、或各个方面的可能实现方式可以采用计算机程序产品的形式，计算机程序产品是指存储在计算机可读介质中的计算机可读程序代码。
计算机可读介质可以是计算机可读数据介质或者计算机可读存储介质。计算机可读存储介质包含但不限于电子、磁性、光学、电磁、红外或半导体系统、设备或者装置，或者前述的任意适当组合，如随机存取存储器(RAM)、只读存储器(ROM)、可擦除可编程只读存储器(EPROM或者快闪存储器)、光纤、便携式只读存储器(CD-ROM)。
计算机中的处理器读取存储在计算机可读介质中的计算机可读程序代码，使得处理器能够执行在流程图中每个步骤、或各步骤的组合中规定的功能动作； 生成实施在框图的每一块、或各块的组合中规定的功能动作的装置。
计算机可读程序代码可以完全在用户的计算机上执行、部分在用户的计算机上执行、作为单独的软件包、部分在用户的本地计算机上并且部分在远程计算机上，或者完全在远程计算机或者服务器上执行。也应该注意，在某些替代实施方案中，在流程图中各步骤、或框图中各块所注明的功能可能不按图中注明的顺序发生。例如，依赖于所涉及的功能，接连示出的两个步骤、或两个块实际上可能被大致同时执行，或者这些块有时候可能被以相反顺序执行。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可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，所述功能单元的划分，仅仅为一种逻辑功能划分，具体实现时可能有其他的划分方式，例如多个单元可以结合到同一个子系统或模块中实现，或将一个单元拆分成几个单元实现，或一些实现特征可以忽略或不执行。
以上对本发明实施例公开的一种数据承载转接的方法及装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种数据承载转接的方法，其特征在于，包括：
    若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载，当需要从所述基站卸载承载时，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点；
    若所述数据承载基于Uu空口初始建立在所述基站，则在所述数据承载基于所述无线局域网空口卸载到所述无线局域网接入点时，使用第二标识对所述数据承载进行标记得到第二数据承载，当需要从所述无线局域网接入点上载承载时，根据所述第二标识选取所述第二数据承载上载至所述基站。
  2. 如权利要求所述1的方法，其特征在于，所述第一标识在所述数据承载基于无线局域网空口初始建立时生成并保存在终端上下文中，所述第二标识在所述数据承载从所述基站卸载至所述无线局域网接入点时生成并保存在终端上下文中。
  3. 如权利要求1所述的方法，其特征在于，当需要从所述基站卸载承载时，还包括：
    保存无线资源控制层和分组数据汇聚协议层的转接配置信息；
    将所述无线资源控制层和分组数据汇聚协议层的转接配置信息发送至待进行数据承载卸载的目标基站；
    对所述无线链路控制层和媒体接入控制层的转接配置信息进行标示并发送至所述无线局域网接入点；
    其中，所述转接配置信息包括终端上下文以及演进的分组系统承载的服务质量参数。
  4. 如权利要求3所述的方法，若数据承载基于无线局域网空口初始建立在无线局域网接入点，还包括：
    指示所述基站模拟完成Uu空口数据承载建立；
    配置无线资源控制层和分组数据汇聚协议层中，无线局域网空口与Uu空口的属性相同；
    若在当前位置的信号强度下所述基站可承载控制面信令，则通过Uu空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立；
    若在当前位置的信号强度下所述基站无法承载控制面信令，则通过无线局域网空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立。
  5. 如权利要求1-4任一项所述的方法，其特征在于，当需要从所述基站卸载承载时，或者当需要从所述无线局域网接入点上载承载时，还包括：
    统计预设时间内所述无线局域网空口的丢包数据和/或延迟数据；
    计算单位时间的平均丢包数据和/或平均延迟数据；
    根据所述平均丢包数据和/或平均延迟数据确定是否进行数据承载转接。
  6. 一种数据承载转接的装置，其特征在于，包括：
    标识单元，用于若数据承载基于无线局域网空口初始建立在无线局域网接入点，则在所述数据承载基于Uu空口上载到基站之前，使用第一标识对所述数据承载进行标记得到第一数据承载；
    选取单元，用于当需要从所述基站卸载承载时，根据所述第一标识选取所述第一数据承载卸载至所述无线局域网接入点；
    所述标识单元，还用于若所述数据承载基于Uu空口初始建立在所述基站，则在所述数据承载基于所述无线局域网空口卸载到所述无线局域网接入点时，使用第二标识对所述数据承载进行标记得到第二数据承载；
    所述选取单元，还用于当需要从所述无线局域网接入点上载承载时，根据所述第二标识选取所述第二数据承载上载至所述基站。
  7. 如权利要求6所述的装置，其特征在于，所述第一标识在所述数据承 载基于无线局域网空口初始建立时生成并保存在终端上下文中，所述第二标识在所述数据承载从所述基站卸载至所述无线局域网接入点时生成并保存在终端上下文中。
  8. 如权利要求6所述的装置，其特征在于，还包括：
    保存单元，用于保存无线资源控制层和分组数据汇聚协议层的转接配置信息；
    发送单元，用于将所述无线资源控制层和分组数据汇聚协议层的转接配置信息发送至待进行数据承载卸载的目标基站；以及对所述无线链路控制层和媒体接入控制层的转接配置信息进行标示并发送至所述无线局域网接入点；
    其中，所述转接配置信息包括终端上下文以及演进的分组系统承载的服务质量参数。
  9. 如权利要求8所述的装置，其特征在于，还包括：
    传输配置单元，用于指示所述基站模拟完成Uu空口数据承载建立；配置无线资源控制层和分组数据汇聚协议层中，无线局域网空口与Uu空口的属性相同；若在当前位置的信号强度下所述基站可承载控制面信令，则通过Uu空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立；以及若在当前位置的信号强度下所述基站无法承载控制面信令，则通过无线局域网空口传输控制面信令以及建立无线资源控制连接，并通过无线局域网空口进行数据承载建立。
  10. 如权利要求6-9任一项所述的装置，其特征在于，还包括：
    计算确定单元，用于统计预设时间内所述无线局域网空口的丢包数据和/或延迟数据；计算单位时间的平均丢包数据和/或平均延迟数据；根据所述平均丢包数据和/或平均延迟数据确定是否进行数据承载转接。
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US11882551B2 (en) 2018-08-10 2024-01-23 Spreadtrum Communications (Shanghai) Co., Ltd. Data uploading method and apparatus of user terminal, storage device, and user terminal

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