WO2014015781A1 - 无线网络切换的方法、基站和用户设备 - Google Patents

无线网络切换的方法、基站和用户设备 Download PDF

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Publication number
WO2014015781A1
WO2014015781A1 PCT/CN2013/079838 CN2013079838W WO2014015781A1 WO 2014015781 A1 WO2014015781 A1 WO 2014015781A1 CN 2013079838 W CN2013079838 W CN 2013079838W WO 2014015781 A1 WO2014015781 A1 WO 2014015781A1
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WO
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Prior art keywords
base station
target
information
handover
candidate
Prior art date
Application number
PCT/CN2013/079838
Other languages
English (en)
French (fr)
Inventor
张宏平
曾清海
权威
宋巍巍
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 EP13822959.6A priority Critical patent/EP2879432B1/en
Publication of WO2014015781A1 publication Critical patent/WO2014015781A1/zh
Priority to US14/606,751 priority patent/US10172047B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/165—Performing reselection for specific purposes for reducing network power consumption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/142—Reselecting a network or an air interface over the same radio air interface technology

Definitions

  • Embodiments of the present invention relate to the field of wireless communications, and more particularly, to a method, a base station, and a user equipment for wireless network handover. Background technique
  • the quality of services that the system can provide is getting higher and higher.
  • the air interface throughput rate has been increasing, with the increase in the number of users and the growth of data services, the air interface throughput rate is still a development bottleneck.
  • network operators need to deploy more base stations to increase network capacity, but this will inevitably increase investment costs and maintenance costs.
  • more and more network operators have chosen the way of mobile data offloading, and offload some data in the mobile network to other available access technologies, supplementing the mobile network.
  • Wi-Fi Wireless Fidelity
  • home base stations and the like.
  • LTE Long Term Evolved, Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • the goal of LTE is to provide a low-cost network that can reduce latency, increase user data rates, increase system capacity, and coverage.
  • the air interface of the LTE network is implemented by the eNB (evolved Node B) to implement the air interface transmission of the mobile service by the UE (User Equipment) through the eNB.
  • Wi_Fi is a standard of WLAN (Wires s Loca l Acces s Network), which is a communication network composed of a wireless network card and an AP (Acces Point).
  • An AP is generally called a network bridge or an access point. It is a bridge between a traditional wired LAN and a wireless LAN. Therefore, any user equipment equipped with a wireless network card can share resources of a wired LAN or even a wide area network through the AP.
  • the principle is equivalent to a HUB or router with a built-in wireless transmitter.
  • the wireless network card is the client device responsible for receiving signals transmitted by the AP.
  • a cell handover is required to maintain continuity of the service.
  • the UE stops transmission between the source base station and the source Wi-Fi AP, and after the handover is completed, the target base station adds a new Wi-Fi AP to the UE, and the target base station The UE needs to perform detection and measurement before adding a new Wi-Fi AP, so that an appropriate Wi-Fi AP configuration can be selected for the UE. This will take a long time, making Wi-Fi data transmission interrupted for a long time.
  • a technical problem to be solved in an aspect of the embodiments of the present invention is to shorten the Wi-Fi transmission interruption time caused by cell handover in a network where LTE and Wi-Fi are converged.
  • the embodiment of the present invention provides a method for wireless network handover, where the method includes:
  • the source base station sends a handover request to the target base station, where the handover request has candidate wireless high-security access point Wi-Fi AP information;
  • the source base station sends a radio resource control RRC connection reconfiguration message to the user equipment UE, where the RRC connection reconfiguration message indicates that the UE switches from the source base station to the target base station, and the RRC connection reconfiguration message has the target
  • the target Wi-Fi AP information acquired by the base station according to the candidate Wi-Fi AP information, so that the UE accesses the target Wi-Fi AP when the UE switches from the source base station to the target base station or after the handover is completed.
  • an embodiment of the present invention provides a method for wireless network handover, where the method
  • the user equipment UE receives a radio resource control RRC connection reconfiguration message sent by the source base station, where the RRC connection reconfiguration message indicates that the UE switches from the source base station to the target base station, and the RRC connection reconfiguration message has the Target Wi-Fi AP information acquired by the target base station according to the candidate wireless high-fidelity access point Wi-Fi AP information;
  • the UE accesses the target Wi_Fi AP from the time when the source base station switches to the target base station or after the handover is completed.
  • an embodiment of the present invention provides a base station, where the base station includes:
  • a sending unit configured to send a handover request to the target base station, where the handover request has candidate wireless high-fidelity access point Wi-Fi AP information;
  • a processing unit configured to send a radio resource control RRC connection reconfiguration message to the user equipment UE, where the RRC connection reconfiguration message indicates that the UE is handed over from the base station to a target base station, where the RRC connection reconfiguration message has the target And the target Wi-Fi AP information obtained by the base station according to the candidate Wi-Fi AP information, so that the UE accesses the target Wi-Fi AP when the UE switches from the base station to the target base station or after the handover is completed.
  • the embodiment of the present invention provides a user equipment, where the user equipment includes: a receiving unit, configured to receive a radio resource management RRC connection reconfiguration message sent by the source base station, where the RRC connection reconfiguration message indicates The user equipment is handed over from the source base station to the target base station, and the RRC connection reconfiguration message has target Wi-Fi AP information acquired by the target base station according to the candidate wireless high-fidelity access point Wi-Fi AP information; and
  • an access unit configured to access the target Wi-Fi AP at the same time as the handover from the source base station to the target base station or after the handover is completed.
  • the target Wi-Fi AP is notified to the UE in advance, so that the UE can quickly access the target Wi-Fi AP during the handover process or after the handover, thereby shortening the cell handover.
  • Wi-Fi transmission interruption time In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.
  • FIG. 1 is a schematic flow chart of a method in accordance with an embodiment of the present invention.
  • FIG. 2 is a signaling interaction diagram of a specific implementation process of a method according to an embodiment of the present invention
  • FIG. 3 is a signaling interaction diagram of a specific implementation process of a method according to an embodiment of the present invention
  • FIG. 4 is a method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flow chart of a method according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a base station according to a further embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention is applied, for example, to the following scenario:
  • the UE performs network communication by using a source cell controlled by a source base station and/or a source Wi-Fi AP.
  • a cell handover will occur, that is, the UE accesses the target base station.
  • the UE disconnects from the source cell and/or the source Wi-Fi AP and accesses the target Wi-Fi AP.
  • the target Wi-Fi AP here is preferably a Wi-Fi AP controlled by the target base station.
  • the method 100 includes: 110: The source base station sends a handover request to the target base station, where the handover request has candidate wireless high-fidelity access point Wi-Fi AP information; and
  • the source base station sends a radio resource control RRC connection reconfiguration message to the user equipment UE, where the RRC connection reconfiguration message indicates that the UE switches from the source base station to the target base station, and the RRC connection reconfiguration message has a The target Wi-Fi AP information obtained by the target base station according to the candidate Wi-Fi AP information, so that the UE accesses the target Wi-Fi AP when the UE switches from the source base station to the target base station or after the handover is completed. .
  • FIG. 2 is a schematic signaling interaction diagram illustrating a cell handover procedure according to an embodiment of the present invention.
  • the source base station transmits a handover request to the target base station in step 210, the handover request having candidate Wi-Fi AP information.
  • the candidate Wi-Fi APs described herein may be selected by the target base station as the aforementioned target Wi-Fi AP.
  • the candidate Wi-Fi APs are determined according to the procedures described in detail later herein, or may be manually configured by the source base station through its own configuration station.
  • the Wi-Fi AP information may include, for example, an SSID (Service Set Ident if ier) or a MAC (Media Acces s Control) address of the Wi-Fi AP.
  • SSID Service Set Ident if ier
  • MAC Media Acces s Control
  • the source base station receives, in step 220, a handover response for the handover request returned by the target base station, where the handover response has the target selected by the target base station from the candidate Wi-Fi AP information.
  • Wi-Fi AP information or target Wi-Fi AP information that the target base station selects separately according to its own configuration policy.
  • the target base station determines the target Wi-Fi AP according to the load, coverage, and the like of the candidate Wi-Fi AP, for example, selecting a light Wi-Fi AP from the candidate Wi-Fi AP as the target Wi-Fi AP.
  • the Wi-Fi AP determines that the Wi-Fi AP is not in the candidate Wi-Fi AP list. -Fi AP as the target WiFI AP
  • the source base station sends an RRC connection reconfiguration message to the UE in step 230, where
  • the RRC connection reconfiguration message indicates that the UE is handed over from the source base station to the target base station, and the RRC connection reconfiguration message has target Wi-Fi AP information acquired by the target base station according to the candidate Wi-Fi AP information, so that The UE accesses the target Wi-Fi AP when the UE switches from the source base station to the target base station or after the handover is completed.
  • the UE initiates RACH (Random Acces s) to the target base station in step 240.
  • RACH Random Acces s
  • Channe 1 random access channel
  • step 240 While the UE is performing step 240 or after step 240 is completed, the UE initiates an association process to the target Wi_Fi AP in step 250 to access the target Wi_Fi AP.
  • the source base station obtains a candidate Wi-Fi AP, for example, in the following method.
  • the source base station sends a measurement task to the UE in step 204, which is used to indicate the detected Wi-Fi AP information on the UE.
  • the source base station then receives the measurement report sent by the UE in step 206, where the measurement report carries the Wi-Fi AP information measured by the UE, and the Wi-Fi AP measured by the candidate Wi-Fi AP from the UE
  • the Fi-Fi AP selects, for example, one or more Wi-Fi APs with the strongest signal or the best signal quality as the candidate Wi-Fi AP.
  • the measurement task described herein may carry an indication cell, and is used to indicate that the UE reports the detected Wi-Fi AP information in the measurement report when the measurement task triggers the measurement report, or
  • the measurement task may carry a preset measurement event, such as a new measurement event, such as a B3 event, where the measurement event is used to instruct the UE to detect and report the information of the detected Wi-Fi AP.
  • a preset measurement event such as a new measurement event, such as a B3 event
  • the measurement event may include a preset threshold, where the measurement event is used to indicate that the UE detects and reports information of a Wi-Fi AP whose signal quality is higher than the preset threshold.
  • the source base station and the target base station can exchange their respective controls in advance.
  • Wi-Fi AP information so that when the cell is handed over, the source base station can learn the Wi-Fi AP controlled by the target base station, so that the target Wi-Fi AP in the handover request message sent by the source base station to the target base station is the Wi-wire controlled by the target base station.
  • -Fi AP to avoid unnecessary information being sent to the target base station.
  • the base station may control the UE to report only the Wi-Fi AP detected (or the signal quality is good enough) under the specific base station (potential handover target base station).
  • the source base station receives, in step 204, an X2 setup request sent by the target base station, where the X2 setup request has information of the Wi-Fi AP controlled by the target base station, Selecting, by the source base station, the candidate Wi-Fi AP from the Wi-Fi AP controlled by the target base station, for example, selecting one or more Wi-Fi APs with the strongest signal or the best signal quality as the candidate Wi_F i AP.
  • the source base station may send an X2 setup response to the target base station in step 206, where the X2 setup response has information of the Wi-Fi AP controlled by the source base station.
  • the source base station in order to accelerate the process of the UE accessing the target Wi-Fi AP, the source base station carries the MAC address of the UE in the handover request message sent to the target base station.
  • the UE's MAC address is used here for Wi-Fi communication.
  • the source base station acquires the MAC address of the UE in step 202. Since the handover request message carries the MAC address of the UE, when the UE accesses the target Wi-Fi AP, the target Wi-Fi AP (or the target base station) can immediately identify the identity of the UE, thereby allowing the UE to access, thus The UE's access process is accelerated and the access success rate is improved.
  • the source base station may send a request message to the UE, where the request message is used to indicate that the UE has its MAC address;
  • the source base station then receives a response message sent by the UE, where the response message has a MAC address of the UE.
  • the source base station sends a request message to the core network, where the request message indicates that the core network returns a MAC address of the UE;
  • the source base station then receives the response message sent by the core network, where the response message carries the MAC address of the UE.
  • the UE actively reports the MAC address of the UE to the source base station. For example, when the UE accesses the source base station, the UE sends the MAC address information to the source base station, for example, through the RRC connection establishment completion message, or is placed in the UE. The incoming capability is reported to the source base station.
  • the source Wi_F i AP may send a SN STATUS TRANSFER message to the connected source base station to notify the PDCP SN of the currently received/transmitted data packet (Packet Da ta Convergence Protocol Ser ia l, packet data convergence protocol sequence number, is used to ensure that packet loss is avoided when the handover is over; meanwhile, the source base station further receives the downlink that is sent by the source Wi-Fi AP without being confirmed. data pack. It should be noted that the foregoing process may be applied to a scenario in which all UEs are associated with the associated WiFi AP.
  • the above is a specific implementation process of the method of the embodiment of the present invention from the perspective of a source base station.
  • the method of the embodiment of the present invention is further specifically described from the perspective of the UE.
  • FIG. 5 is a schematic flow chart of a method for wireless network handover according to an embodiment of the present invention. As shown
  • method 500 includes:
  • the UE receives a radio resource management RRC connection reconfiguration message sent by the base station, where the RRC connection reconfiguration message indicates that the UE switches from the source base station to the target base station, and the RRC connection reconfiguration message has the target base station according to the candidate Wi -Fim AP information acquisition target Wi-Fi AP information;
  • the UE accesses the target Wi-Fi AP.
  • the method 500 further includes: before the receiving the RRC connection reconfiguration message sent by the base station, according to the embodiment of the present invention, the method 500 further includes:
  • the UE And receiving the measurement task sent by the source base station, where the measurement task is used to indicate that the UE sends the detected Wi-Fi AP information to the source base station, where the candidate Wi-Fi AP information includes The UE detects the Wi-Fi AP information.
  • the measurement task has an indication cell or a measurement event, and is used to indicate the detected Wi-Fi AP information on the UE.
  • the target Wi-Fi AP is a Wi-Fi AP controlled by the target base station.
  • the measurement task carries a preset measurement event, and the measurement event includes a preset threshold, where the measurement event is used to indicate that the UE detects and reports a signal quality higher than the foregoing.
  • Pre-set threshold for Wi-Fi AP information Pre-set threshold for Wi-Fi AP information.
  • the method 500 further includes: before the UE receives the RRC connection reconfiguration message sent by the base station, according to the embodiment of the present invention, the method 500 further includes:
  • the UE sends a response message to the source base station, where the response message carries a MAC address of the UE.
  • the method 500 further includes: before the RRC connection reconfiguration message sent by the receiving source base station, according to the embodiment of the present invention, the method 500 further includes:
  • the UE sends the MAC address of the UE to the source base station.
  • the information of the Wi-Fi AP includes the SSID of the Wi-Fi AP and/or the MAC address of the Wi-Fi AP.
  • the target Wi-Fi AP is notified to the UE in advance, so that the UE can quickly access the target Wi-Fi AP during the handover process or after the handover, thereby shortening the cell handover.
  • the Wi-Fi transmission interruption time quickly restores the high-speed data transmission of the UE through the Wi-Fi network, thereby improving communication efficiency and improving the user experience.
  • the embodiment of the present invention further provides a base station and a user equipment for implementing the method of the embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station shown in Figure 6 can Used as a source base station in the method of the embodiment of the present invention.
  • the base station 600 includes: a sending unit 610, configured to send a handover request to a target base station, where the handover request has candidate wireless high-fidelity access point Wi-Fi AP information; and
  • the processing unit 620 is configured to send a radio resource control RRC connection reconfiguration message to the user equipment UE, where the RRC connection reconfiguration message indicates that the UE switches from the base station to the target base station, and the RRC connection reconfiguration message has the
  • the target base station acquires the target Wi-Fi AP information according to the candidate Wi-Fi AP information, so that the UE accesses the target Wi-Fi AP when the UE switches from the base station to the target base station or after the handover is completed.
  • the base station 600 further includes:
  • the receiving unit 630 is configured to receive a handover response sent by the target base station, where the switching response has the target Wi-Fi AP information selected by the target base station from the candidate Wi-Fi AP information, or
  • the target Wi-Fi AP information determined by the target base station according to the candidate Wi-Fi AP information.
  • the sending unit before sending the handover request to the target base station, the sending unit
  • the 610 is further configured to send a measurement task to the UE, where the measurement task is used to indicate the detected Wi-Fi AP information on the UE, where the candidate Wi-Fi AP information includes the detected by the UE. Wi-Fi AP information.
  • the receiving unit 630 is further configured to receive the measurement report sent by the UE, where the measurement report carries the information of the Wi-Fi AP measured by the UE, where the candidate Wi-Fi AP is measured from the UE. Select from i-F i AP.
  • the receiving unit 630 before the sending the handover request to the target base station, is further configured to receive an X2 setup request sent by the target base station, where the X2 setup request has Wi-Fi controlled by the target base station.
  • the sending unit 610 is further configured to send the X2 to the target base station according to an embodiment of the present invention.
  • the X2 setup response carries information of the Wi-Fi AP under control of the source base station.
  • the measurement task carries a preset measurement event, and the measurement event includes a preset threshold, where the measurement event is used to instruct the UE to detect and report a Wi with a signal quality higher than the preset threshold. -F i AP information.
  • the receiving unit 630 is further configured to receive a sequence number status delivery message sent by the source Wi-Fi AP under the control of the source base station, where the sequence number status delivery message is used to notify the source base station of the data that has been received/transmitted by the source base station.
  • the packet data of the packet is aggregated with the protocol sequence number, and the receiving unit 630 is further configured to receive the downlink data packet sent by the source Wi-Fi AP without being acknowledged.
  • the sending unit 610 is further configured to send a request message to the UE, where the request message is used to indicate that the UE reports its MAC address;
  • the receiving unit 630 is further configured to receive the response message sent by the UE, where the response message carries the MAC address of the UE, and the MAC address of the UE is carried in the handover request message sent to the target base station.
  • the sending unit 610 is further configured to send a request message to the core network, where the request message indicates that the core network returns a MAC address of the UE;
  • the receiving unit 630 is further configured to receive the response message sent by the core network, where the response message carries the MAC address of the UE, and carries the MAC address of the UE in the handover request message sent to the target base station.
  • the receiving unit 630 is further configured to receive the MAC address reported by the UE.
  • the Wi-Fi AP information includes an SSID of the Wi-Fi AP and/or a MAC address of the Wi-Fi AP.
  • FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in Figure 8, user device 800 includes:
  • the receiving unit 810 is configured to receive a radio resource management RRC connection reconfiguration message sent by the source base station, where the RRC connection reconfiguration message indicates that the user equipment switches from the source base station to the destination a base station, the RRC connection reconfiguration message having target Wi-Fi AP information acquired by the target base station according to the candidate wireless high-fidelity access point Wi-Fi AP information; and
  • the access unit 820 is configured to access the target Wi-Fi AP after the handover from the source base station to the target base station or after the handover is completed.
  • the receiving unit 810 before the RRC connection reconfiguration message sent by the source base station, is further configured to receive a measurement task sent by the source base station, where the UE is configured to indicate the detected Wi The information of the Fi AP, where the candidate Wi-Fi AP information includes the Wi-Fi AP information detected by the UE.
  • the measurement task in the received measurement task sent by the source base station, carries an indication cell and a measurement event, and is used to indicate the detected Wi-Fi AP information on the UE.
  • the target Wi-Fi AP is a Wi-Fi AP controlled by the target base station.
  • the measurement task carries a preset measurement event, and the measurement event includes a preset threshold, where the measurement event is used to indicate that the UE detects and reports that the signal quality is higher than the preset threshold.
  • Wi-Fi AP information Wi-Fi AP information.
  • the receiving unit 810 is further configured to: receive a request message sent by the source base station, where the request message is used to indicate that the UE is configured to have its MAC address.
  • the information of the Wi_Fi AP includes an SSID of the Wi_Fi AP and/or a MAC address of the Wi_Fi AP.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • 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 components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over 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
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, and a read only memory (ROM, Read-Only) Memory ), random access memory (RAM, Random Acce ss Memory), disk or optical disk, etc., which can store program code.

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Abstract

本发明实施例涉及无线网络切换的方法、基站和用户设备。无线网络切换的方法包括：源基站向目标基站发送切换请求，所述切换请求具有候选的无线高保真接入点Wi-Fi AP信息；和所述源基站向用户设备UE发送无线资源控制RRC连接重配置消息，所述RRC连接重配置消息指示所述UE从所述源基站切换到目标基站，所述RRC连接重配置消息具有所述目标基站根据所述候选的Wi-Fi AP信息获取的目标Wi-Fi AP信息，以便所述UE从所述源基站切换到所述目标基站时或者切换完成后，接入目标Wi-Fi AP。根据本发明实施例，在小区切换过程中，由于将目标Wi-Fi AP提前通知UE，使得UE在切换过程中或者切换后，可以快速接入到目标Wi-Fi AP，缩短了小区切换造成的Wi-Fi传输中断时间。

Description

无线网络切换的方法、 基站和用户设备
本申请要求于 2012 年 7 月 27 日提交中国专利局、 申请号为 CN 201210264106.3、 发明名称为"无线网络切换的方法、基站和用户设备"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
本发明实施例涉及无线通信领域， 更具体地说， 涉及无线网络切换的 方法、 基站和用户设备。 背景技术
随着移动通信系统的发展， 系统能够提供的服务质量越来越高。 虽然 空口吞吐率一直在增加， 但是随着用户量的增加、 数据业务的增长， 空口 吞吐率仍然是一个发展瓶颈。 网络运营商为了緩解移动网络的拥塞， 需要 部署更多的基站来提高网络容量， 但这势必会增加投资成本与维护成本。 为了解决这一矛盾， 越来越多的网络运营商选择了移动数据分流的方式， 将移动网络中的部分数据分流到其他可用的接入技术上， 作为对移动网络 的补充。 目前， 用于移动数据分流的最主要的补充网络技术包括 Wi-Fi (Wireless Fidelity, 无线高保真）、 家庭基站等。
LTE ( Long Term Evolved , 长期演进网络） 是目前 3gpp ( 3rd Generation Partnership Program, 第三代合作伙伴计戈' j )组织中各厂商 积极研究的一种移动通信网络， 是 UMTS ( Universal Mobile Telecommunication System, 通用移动通信系统）的演进网络。 LTE的目的 是提供一种能够降低时延、 提高用户数据速率、 增加系统容量及覆盖的低 成本网络。 LTE网络的空中接口通过部署 eNB (evolved Node B, 演进节点 B)来实现 UE (User Equipment, 用户设备）通过 eNB进行移动业务的空口 传输。 Wi_Fi是 WLAN ( Wireles s Loca l Acces s Network, 无线局域网） 的 一个标准， 是由无线网卡和 AP ( Acces s Point , 接入点）组成的通信网络。 AP一般称为网络桥接器或接入点， 它是传统的有线局域网与无线局域网之 间的桥梁， 因此任何装有无线网卡的用户设备均可以通过 AP去分享有线局 域网甚至广域网的资源， 其工作原理相当于一个内置无线发射器的 HUB或 者路由器。 而无线网卡则是负责接收由 AP所发射信号的客户端设备。
在通信网络里， 当 UE 从一个基站移动到另一个基站的覆盖范围， 需 要进行小区切换从而保持业务的连续性。 在 LTE和 Wi-Fi融合的网络里， 在切换发生时， UE在源基站和源 Wi-Fi AP的传输被停止， 切换完成后再由 目标基站为 UE增加新的 Wi-Fi AP, 目标基站在增加新的 Wi-Fi AP前需要 UE进行检测和测量， 从而能选择合适的 Wi-Fi AP配置给 UE。 这将耗时很 长， 使得 Wi-Fi的数据传输中断时间长。 发明内容
本发明实施例一方面所要解决的技术问题是在 LTE与 Wi-Fi融合的网 络中， 缩短小区切换造成的 Wi-Fi传输中断时间。
一方面， 本发明实施例提出了一种无线网络切换的方法， 所述方法包 括：
源基站向目标基站发送切换请求， 所述切换请求具有候选的无线高保 真接入点 Wi-Fi AP信息； 和
所述源基站向用户设备 UE发送无线资源控制 RRC连接重配置消息， 所述 RRC连接重配置消息指示所述 UE从所述源基站切换到目标基站， 所述 RRC连接重配置消息具有所述目标基站根据所述候选的 Wi-Fi AP信息获取 的目标 Wi-Fi AP信息， 以便所述 UE从所述源基站切换到所述目标基站时 或者切换完成后， 接入目标 Wi-Fi AP。
另一方面， 本发明实施例提出了一种无线网络切换的方法， 所述方法 包括： 用户设备 UE接收源基站发送的无线资源控制 RRC连接重配置消息， 所述 RRC连接重配置消息指示所述 UE从所述源基站切换到目标基站， 所述 RRC连接重配置消息具有所述目标基站根据候选的无线高保真接入点 Wi-Fi AP信息获取的目标 Wi-Fi AP信息；
所述 UE从所述源基站切换到所述目标基站的同时或者切换完成后， 接入目标 Wi_Fi AP。
另一方面， 本发明实施例提出了一种基站， 所述基站包括：
发送单元， 用于向目标基站发送切换请求， 所述切换请求具有候选的 无线高保真接入点 Wi-Fi AP信息； 和
处理单元， 用于向用户设备 UE发送无线资源控制 RRC连接重配置消 息， 所述 RRC连接重配置消息指示所述 UE从所述基站切换到目标基站， 所 述 RRC连接重配置消息具有所述目标基站根据所述候选的 Wi-Fi AP信息获 取的目标 Wi-Fi AP信息， 以便所述 UE从所述基站切换到所述目标基站时 或者切换完成后， 接入目标 Wi-Fi AP。
另一方面， 本发明实施例提出了一种用户设备， 所述用户设备包括： 接收单元，用于接收源基站发送的无线资源管理 RRC连接重配置消息， 所述 RRC连接重配置消息指示所述用户设备从所述源基站切换到目标基站， 所述 RRC连接重配置消息具有所述目标基站根据候选的无线高保真接入点 Wi-Fi AP信息获取的目标 Wi-Fi AP信息； 和
接入单元， 用于在所述从所述源基站切换到所述目标基站的同时或者 切换完成后， 接入所述目标 Wi-Fi AP。
根据本发明实施例， 在小区切换过程中， 由于将目标 Wi-Fi AP提前 通知 UE,使得 UE在切换过程中或者切换后，可以快速接入到目标 Wi-Fi AP, 缩短了小区切换造成的 Wi-Fi传输中断时间。 附图说明 为了更清楚地说明本发明实施例的技术方案， 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 1是根据本发明实施例的方法的示意流程图；
图 2是根据本发明实施例的方法的具体实现过程的信令交互图； 图 3是根据本发明实施例的方法的具体实现过程的信令交互图； 图 4是根据本发明实施例的方法的具体实现过程的信令交互图； 图 5是根据本发明实施例的方法的示意流程图；
图 6是根据本发明实施例的基站的示意结构图；
图 7是根据本发明实施例的进一步实施方案的基站的示意结构图； 图 8是根据本发明实施例的用户设备的示意结构图。 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。
本发明实施例例如应用于如下场景： UE通过源基站控制的源小区和 / 或源 Wi-Fi AP进行网络通信。 UE移动到目标基站的覆盖范围内的时候， 将 发生小区切换， 即 UE接入目标基站。 在小区切换的过程中或者在切换完成 后， UE断开与源小区和 /或源 Wi-Fi AP的关联， 并接入目标 Wi-Fi AP。 这 里的目标 Wi-Fi AP优选是目标基站控制的 Wi-Fi AP。
图 1是根据本发明实施例的无线网络切换的方法的示意流程图。 如图 1所示， 方法 100包括： 110： 源基站向目标基站发送切换请求， 所述切换请求具有候选的无 线高保真接入点 Wi-Fi AP信息； 和
120： 所述源基站向用户设备 UE发送无线资源控制 RRC连接重配置消 息， 所述 RRC连接重配置消息指示所述 UE从所述源基站切换到目标基站， 所述 RRC连接重配置消息具有所述目标基站根据所述候选的 Wi-Fi AP信息 获取的目标 Wi-Fi AP信息， 以便所述 UE从所述源基站切换到所述目标基 站时或者切换完成后， 接入目标 Wi-Fi AP。
以下结合具体的应用场景来进一步描述本发明是实施例的方法。 图 2 是例述根据本发明实施例的小区切换过程的示意信令交互图。 如图 2所示， 在 UE移动到目标基站覆盖范围时， 源基站在步骤 210中向目标基站发送切 换请求，所述切换请求具有候选的 Wi-Fi AP信息。这里所述候选的 Wi-Fi AP 可以被目标基站选作前述的目标 Wi-Fi AP。 所述候选的 Wi-Fi AP根据本文 后面详细描述的过程来确定， 或者也可以在源基站通过自身的配置台来手 工配置。 而且， 根据本发明实施例， Wi-Fi AP信息例如可以包括 Wi-Fi AP 的 SSID ( Service Set Ident if ier , 服务集标识）或者 MAC ( Media Acces s Control , 媒体接入控制）地址。
接着， 源基站在步骤 220中接收所述目标基站返回的针对所述切换请 求的切换响应， 所述切换响应具有由所述目标基站从所述候选的 Wi-Fi AP 信息中选择的所述目标 Wi-Fi AP信息， 或者目标基站根据自身的配置策略 另行选择的目标 Wi-Fi AP信息。 例如， 目标基站根据候选 Wi-Fi AP的负 载， 覆盖范围等来确定目标 Wi-Fi AP, 比如从候选 Wi-Fi AP中选择负载轻 的作为目标 Wi_Fi AP。 再例如， 目标基站通过 0AM ( Operator And Ma intenance, 操作维护台）获知某个 Wi-Fi AP 几乎覆盖目标小区， 则即 使该 Wi-Fi AP不在候选 Wi-Fi AP列表里， 也决定将该 Wi-Fi AP作为目标 WiFI AP
然后， 源基站在步骤 230中向 UE发送 RRC连接重配置消息， 其中所 述 RRC连接重配置消息指示所述 UE从源基站切换到目标基站， 所述 RRC连 接重配置消息具有所述目标基站根据所述候选的 Wi-Fi AP信息获取的目标 Wi-Fi AP信息， 以便所述 UE从所述源基站切换到所述目标基站时或者切换 完成后， 接入所述目标 Wi-Fi AP。
接下来， UE 在步骤 240 中向目标基站发起 RACH ( Random Acces s
Channe 1 , 随机接入信道）过程， 接入目标基站。
UE在进行步骤 240的同时或者在步骤 240完成之后， UE在步骤 250 中向目标 Wi_Fi AP发起关联过程， 接入目标 Wi_Fi AP。
为了选择目标 Wi-Fi AP , 除了通过自身的配置台来手工配置目标 Wi-Fi AP之外， 源基站例如下面的方法获得候选的 Wi-Fi AP。
例如， 如图 3所示， 在步骤 210之前， 源基站在步骤 204中向所述 UE 发送测量任务， 用于指示所述 UE上 ^艮检测到的 Wi-Fi AP信息；
然后源基站在步骤 206中接收所述 UE发送的测量报告， 其中所述测 量报告携带所述 UE测量得到的 Wi-Fi AP信息， 所述候选的 Wi-Fi AP从所 述 UE测量得到的 Wi-Fi AP中选择， 例如选择信号最强或信号质量最好的 一个或多个 Wi-Fi AP作为所述候选的 Wi-Fi AP。
这里所述的测量任务， 例如为 A3 测量任务， 可以携带指示信元， 用 于指示所述 UE在测量任务触发测量报告时， 在所述测量报告中上报检测到 的 Wi-Fi AP信息， 或者
所述测量任务可以携带预设的测量事件， 例如新的测量事件， 诸如 B3 事件， 所述测量事件用于指示所述 UE检测并上报检测到的 Wi-Fi AP的信 息。
根据本发明实施例， 所述测量事件中可以包含预设的门限， 所述测量 事件用于指示 UE检测并上报信号质量高于所述预设的门限的 Wi-Fi AP的 信息。
根据本发明实施例， 源基站和目标基站可以提前交换各自控制的 Wi-Fi AP信息，以便在小区切换时，源基站能获知目标基站控制的 Wi-Fi AP, 从而使得源基站发送给目标基站的切换请求消息里的目标 Wi-Fi AP是目标 基站控制的 Wi-Fi AP, 以避免不必要的信息发送给目标基站。 或者在获知 邻接基站下的 Wi-Fi AP信息后， 基站可以控制 UE只上报特定基站（潜在 的切换目标基站） 下的检测到 （或信号质量足够好的） 的 Wi-Fi AP。
例如， 如图 4所示， 在步骤 210之前， 源基站在步骤 204，中接收目标 基站发送的 X2 建立请求， 所述 X2 建立请求具有由所述目标基站控制的 Wi-Fi AP的信息， 用于所述源基站从所述目标基站控制的 Wi-Fi AP中选择 所述候选的 Wi-Fi AP , 例如选择信号最强或信号质量最好的一个或多个 Wi-Fi AP作为所述候选的 Wi_F i AP。
根据本发明实施例，源基站可以在步骤 206，中向所述目标基站发送 X2 建立响应， 所述 X2建立响应具有所述源基站控制的 Wi-Fi AP的信息。
根据本发明实施例， 为了加速 UE接入目标 Wi-Fi AP的过程， 源基站 在发送给目标基站的所述切换请求消息里携带所述 UE的 MAC地址。 UE的 MAC地址在这里用于 Wi-Fi通讯。 为此， 在步骤 210之前， 源基站在步骤 202获取 UE的 MAC地址。 由于切换请求消息里携带 UE的 MAC地址， 在 UE 接入到目标 Wi-Fi AP时， 目标 Wi-Fi AP (或者说目标基站） 能立即识别出 UE的身份， 从而允许该 UE接入， 因此加快了 UE的接入进程并提高了接入 成功率。
源基站获取 UE的 MAC地址的方法很多。 例如， 根据本发明实施例， 源基站可以向所述 UE发送请求消息， 其中所述请求消息用于指示 UE 上才艮其 MAC地址；
然后源基站接收所述 UE发送的响应消息， 其中所述响应消息具有所 述 UE的 MAC地址。
或者， 源基站向核心网发送请求消息， 其中所述请求消息指示所述核 心网返回所述 UE的 MAC地址； 然后源基站接收所述核心网发送的响应消息， 其中所述响应消息携带 所述 UE的 MAC地址。
或者， UE向源基站主动上报该 UE的 MAC地址， 例如在 UE接入到源基 站时， 主动将其 MAC地址信息发送到源基站， 比如通过 RRC连接建立完成 消息发送， 或者放在 UE的接入能力里上报给源基站。
当 UE与源 Wi_Fi AP去关联后， 所述源 Wi_F i AP可以向所连接的源 基站发送 SN STATUS TRANSFER (序号状态传递） 消息， 通知当前已接收 / 发送的数据包的 PDCP SN ( Packet Da ta Convergence Protocol Ser ia l N丽 ber , 包数据汇聚协议序号）， 用于保证在切换过时避免数据包的丟失； 同时， 所述源基站还接收所述源 Wi-Fi AP发送的没有得到确认的下行数据 包。 需要说明的是， 上述流程可以应用在所有 UE与所关联的 WiFi AP去关 联的场景。
以上是从源基站的角度来描述本发明实施例的方法的具体实现过程。 下面从 UE的角度进一步具体说明本发明实施例的方法。
图 5是根据本发明实施例的无线网络切换的方法的示意流程图。 如图
5所示， 方法 500包括：
510： UE接收基站发送的无线资源管理 RRC连接重配置消息， 其中所 述 RRC连接重配置消息指示 UE从源基站切换到目标基站， 所述 RRC连接重 配置消息具有所述目标基站根据候选的 Wi-Fi AP信息获取的目标 Wi-Fi AP 信息；
520： UE从源基站切换到目标基站的同时或者切换完成后， 接入目标 Wi-Fi AP。
如上所述， 根据本发明实施例， 在所述接收基站发送的 RRC连接重配 置消息之前， 所述方法 500还包括：
接收所述源基站发送的测量任务， 所述测量任务用于指示所述 UE 向 所述源基站上 ^艮检测到的 Wi-Fi AP信息， 所述候选的 Wi-Fi AP信息包括 所述 UE检测到 ^ Wi-Fi AP信息。
如上所述， 根据本发明实施例， 所述测量任务具有指示信元或测量事 件， 用于指示所述 UE上 ^艮检测到的 Wi-Fi AP信息。
如上所述， 根据本发明实施例， 所述目标 Wi-Fi AP是由所述目标基 站控制的 Wi-Fi AP。
如上所述， 根据本发明实施例， 所述测量任务携带预设的测量事件， 所述测量事件包含预设的门限， 所述测量事件用于指示所述 UE检测并上报 信号质量高于所述预设的门限的 Wi-Fi AP的信息。
如上所述， 根据本发明实施例， 在 UE所述接收基站发送的 RRC连接 重配置消息之前， 所述方法 500还包括：
所述 UE接收所述源基站发送的请求消息， 其中所述请求消息用于指 示所述 UE上艮其 MAC地址；
所述 UE向所述源基站发送响应消息， 其中所述响应消息携带所述 UE 的 MAC地址。
如上所述， 根据本发明实施例， 在所述 UE所述接收源基站发送的 RRC 连接重配置消息之前， 所述方法 500还包括：
所述 UE向所述源基站上 ^艮所述 UE的 MAC地址。
如上所述， 根据本发明实施例， 所述 Wi-Fi AP的信息包括 Wi-Fi AP 的 SSID和 /或 Wi_Fi AP的 MAC地址。
根据本发明实施例， 在小区切换过程中， 由于将目标 Wi-Fi AP提前 通知 UE,使得 UE在切换过程中或者切换后，可以快速接入到目标 Wi-Fi AP, 缩短了小区切换造成的 Wi-Fi传输中断时间， 快速恢复 UE通过 Wi-Fi网络 进行的高速数据传输， 从而提高通信效率， 改善用户体验。
本发明实施例还提出了用于实现本发明实施例的方法的基站和用户 设备。
图 6是根据本发明实施例的基站的示意结构图。 图 6所示的基站可以 用作本发明实施例的方法中的源基站。 如图 6所示， 基站 600包括： 发送单元 610, 用于向目标基站发送切换请求， 所述切换请求具有候 选的无线高保真接入点 Wi-Fi AP信息； 和
处理单元 620,用于向用户设备 UE发送无线资源控制 RRC连接重配置 消息， 所述 RRC连接重配置消息指示所述 UE从所述基站切换到目标基站， 所述 RRC连接重配置消息具有所述目标基站根据所述候选的 Wi-Fi AP信息 获取的目标 Wi-Fi AP信息， 以便所述 UE从所述基站切换到所述目标基站 时或者切换完成后， 接入目标 Wi-Fi AP。
根据本发明实施例， 如图 7所示， 所述基站 600还包括：
接收单元 630, 用于接收所述目标基站发送的切换响应， 其中所述切 换响应具有所述目标基站从所述候选的 Wi-Fi AP 信息中选择的所述目标 Wi-Fi AP信息， 或者
所述目标基站根据所述候选的 Wi-Fi AP信息确定的所述目标 Wi-Fi AP 信息。
根据本发明实施例， 在所述向目标基站发送切换请求之前， 发送单元
610还用于向所述 UE发送测量任务，所述测量任务用于指示所述 UE上 ^艮检 测到的 Wi-Fi AP信息，所述候选的 Wi-Fi AP信息包括所述 UE检测到的 Wi-Fi AP信息。
接收单元 630还用于接收所述 UE发送的测量报告， 其中所述测量报 告携带所述 UE测量得到的 Wi-Fi AP的信息， 所述候选的 Wi-Fi AP从所述 UE测量得到的 W i -F i AP中选择。
根据本发明实施例， 在所述向目标基站发送切换请求之前， 接收单元 630还用于接收所述目标基站发送的 X2建立请求，所述 X2建立请求具有由 所述目标基站控制的 Wi-Fi AP的信息， 用于所述基站从所述目标基站控制 的 Wi_Fi AP中选择所述候选的 Wi_Fi AP。
根据本发明实施例， 发送单元 610还用于向所述目标基站发送 X2建 立响应， 所述 X2建立响应携带所述源基站控制下的 Wi-Fi AP的信息。 根据本发明实施例， 所述测量任务携带预设的测量事件， 所述测量事 件包含预设的门限， 所述测量事件用于指示 UE检测并上报信号质量高于所 述预设的门限的 Wi-F i AP的信息。
根据本发明实施例， 接收单元 630还用于接收所述源基站控制下的源 Wi-Fi AP发送的序号状态传递消息， 所述序号状态传递消息用于通知源基 站当前已经接收 /发送的数据包的包数据汇聚协议序号， 并且接收单元 630 还用于接收所述源 Wi-Fi AP发送的没有得到确认的下行数据包。
根据本发明实施例， 发送单元 610还用于向所述 UE发送请求消息， 其中所述请求消息用于指示 UE上报其 MAC地址；
接收单元 630还用于接收所述 UE发送的响应消息， 其中所述响应消 息携带所述 UE的 MAC地址， 在发送给目标基站的所述切换请求消息里携带 所述 UE的 MAC地址。
根据本发明实施例， 发送单元 610还用于向核心网发送请求消息， 其 中所述请求消息指示所述核心网返回所述 UE的 MAC地址；
接收单元 630还用于接收所述核心网发送的响应消息， 其中所述响应 消息携带所述 UE的 MAC地址， 在发送给目标基站的所述切换请求消息里携 带所述 UE的 MAC地址。
根据本发明实施例， 接收单元 630还用于接收所述 UE上报的 MAC地 址。
根据本发明实施例， 所述 Wi-Fi AP信息包括 Wi-Fi AP的 SSID和 /或 Wi-Fi AP的 MAC地址。
图 8是根据本发明实施例的用户设备的示意结构图。 如图 8所示， 用 户设备 800包括：
接收单元 810 , 用于接收源基站发送的无线资源管理 RRC连接重配置 消息， 所述 RRC连接重配置消息指示所述用户设备从所述源基站切换到目 标基站， 所述 RRC连接重配置消息具有所述目标基站根据候选的无线高保 真接入点 Wi-Fi AP信息获取的目标 Wi-Fi AP信息； 和
接入单元 820, 用于在所述从所述源基站切换到所述目标基站的同时 或者切换完成后， 接入所述目标 Wi-Fi AP。
根据本发明实施例， 在所述接收源基站发送的 RRC连接重配置消息之 前， 接收单元 810还用于接收所述源基站发送的测量任务， 用于指示所述 UE上 ^艮检测到的 Wi-Fi AP的信息， 所述候选的 Wi-Fi AP信息包括所述 UE 检测到的 Wi-Fi AP信息。
根据本发明实施例， 在接收的所述源基站发送的测量任务中， 所述测 量任务携带指示信元和测量事件， 用于指示所述 UE上 ^艮检测到的 Wi-Fi AP 信息。
根据本发明实施例， 所述目标 Wi-Fi AP 是由所述目标基站控制的 Wi-Fi AP。
根据本发明实施例， 所述测量任务携带预设的测量事件， 所述测量事 件包含预设的门限， 所述测量事件用于指示所述 UE检测并上报信号质量高 于所述预设的门限的 Wi-Fi AP的信息。
根据本发明实施例， 在所述接收源基站发送的 RRC连接重配置消息之 前，
接收单元 810还用于， 接收所述源基站发送的请求消息， 其中所述请 求消息用于指示所述 UE上 ^艮其 MAC地址。
根据本发明实施例， 所述 Wi_Fi AP的信息包括 Wi_Fi AP的 SSID和 / 或 Wi_Fi AP的 MAC地址。
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。 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（ ROM, Read-Only Memory ), 随机存取存储器 ( RAM, Random Acce s s Memory ), 磁碟或者光盘 等各种可以存储程序代码的介质。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局 限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可 轻易想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明 的保护范围应所述以权利要求的保护范围为准。

Claims

权利要求
1. 一种无线网络切换的方法， 其特征在于， 所述方法包括：
源基站向目标基站发送切换请求， 所述切换请求具有候选的无线高保 真接入点 Wi-Fi AP信息； 和
所述源基站向用户设备 UE发送无线资源控制 RRC连接重配置消息， 所述 RRC连接重配置消息指示所述 UE从所述源基站切换到目标基站， 所 述 RRC连接重配置消息具有所述目标基站根据所述候选的 Wi-Fi AP信息获 取的目标 Wi-Fi AP信息， 以便所述 UE从所述源基站切换到所述目标基站 时或者切换完成后， 接入目标 Wi-Fi AP。
2. 如权利要求 1所述的方法， 其特征在于， 所述方法还包括： 接收所述目标基站发送的切换响应；
其中， 所述切换响应具有：
所述目标基站从所述候选的 Wi-Fi AP信息中选择的所述目标 Wi-Fi AP 信息； 或
所述目标基站根据所述候选的 Wi-Fi AP的信息确定的所述目标 Wi-Fi AP信息。
3. 如权利要求 1或 2所述的方法， 其特征在于， 所述方法还包括： 向所述 UE发送测量任务， 用于指示所述 UE上 ^艮检测到的 Wi-Fi AP 信息， 所述候选的 Wi-Fi AP信息包括所述 UE检测到的 Wi-Fi AP信息。
4. 如权利要求 3所述的方法， 其特征在于：
所述测量任务具有指示信元或测量事件，用于指示所述 UE上报所述检 测到的 Wi-Fi AP信息。
5. 如权利要求 2所述的方法， 其特征在于， 所述方法还包括： 接收所述目标基站发送的 X2建立请求， 所述 X2建立请求具有由所述 目标基站控制的 Wi-Fi AP的信息， 用于所述源基站从所述目标基站控制的 Wi-Fi AP中选择所述候选的 Wi-Fi AP。
6. 如权利要求 1至 5任一项所述的方法， 其特征在于， 所述方法还包 括：
接收所述源基站控制的源 Wi-Fi AP发送的序号状态传递消息， 所述序 号状态传递消息用于通知源基站当前已经接收或发送的数据包的包数据汇 聚协议序号；
接收所述源 Wi-Fi AP发送的没有得到确认的下行数据包。
7. 如权利要求 1至 6任一项所述的方法， 其特征在于， 还包括： 获取所述 UE的媒体接入控制 MAC地址，
其中， 所述切换请求具有所述 UE的 MAC地址。
8. 如权利要求 1至 7任一项所述的方法，其特征在于，所述目标 Wi-Fi AP是由所述目标基站控制的 Wi-Fi AP。
9. 一种无线网络切换的方法， 其特征在于， 所述方法包括：
用户设备 UE接收源基站发送的无线资源控制 RRC连接重配置消息， 所述 RRC连接重配置消息指示所述 UE从所述源基站切换到目标基站， 所 述 RRC 连接重配置消息具有所述目标基站根据候选的无线高保真接入点 Wi-Fi AP信息获取的目标 Wi-Fi AP信息；
所述 UE从所述源基站切换到所述目标基站的同时或者切换完成后，接 入目标 Wi-Fi AP。
10. 如权利要求 9所述的方法， 其特征在于，
所述方法还包括：
接收所述源基站发送的测量任务，所述测量任务用于指示所述 UE向所 述源基站上报检测到的 Wi-Fi AP信息，所述候选的 Wi-Fi AP信息包括所述 UE检测到的 Wi-Fi AP信息。
11. 如权利要求 10所述的方法， 其特征在于，
所述测量任务具有指示信元或测量事件，用于指示所述 UE上报所述检 测到的 Wi-Fi AP信息。
12. 如权利要求 9 至 11 任一项所述的方法， 其特征在于， 所述目标 Wi-Fi AP是由所述目标基站控制的 Wi-Fi AP。
13. 一种基站， 其特征在于， 所述基站包括：
发送单元， 用于向目标基站发送切换请求， 所述切换请求具有候选的 无线高保真接入点 Wi-Fi AP信息； 和
处理单元， 用于向用户设备 UE发送无线资源控制 RRC连接重配置消 息， 所述 RRC连接重配置消息指示所述 UE从所述基站切换到目标基站， 所述 RRC连接重配置消息具有所述目标基站根据所述候选的 Wi-Fi AP信息 获取的目标 Wi-Fi AP信息， 以便所述 UE从所述基站切换到所述目标基站 时或者切换完成后， 接入目标 Wi-Fi AP。
14. 如权利要求 13所述的基站， 其特征在于，
所述基站还包括：
接收单元， 用于接收所述目标基站发送的切换响应， 其中所述切换响 应具有所述目标基站从所述候选的 Wi-Fi AP信息中选择的所述目标 Wi-Fi AP信息， 或者
所述目标基站根据所述候选的 Wi-Fi AP信息确定的所述目标 Wi-Fi AP 信息。
15. 如权利要求 13或 14所述的基站， 其特征在于：
所述发送单元，还用于向所述 UE发送测量任务，所述测量任务用于指 示所述 UE上^艮检测到的 Wi-Fi AP信息， 所述候选的 Wi-Fi AP信息包括所 述 UE检测到的 Wi-Fi AP信息。
16. 如权利要求 14所述的基站， 其特征在于：
所述接收单元还用于接收所述目标基站发送的 X2建立请求， 所述 X2 建立请求具有由所述目标基站控制的 Wi-Fi AP的信息， 用于所述基站从所 述目标基站控制的 Wi-Fi AP中选择所述候选的 Wi-Fi AP。
17. 一种用户设备， 其特征在于， 所述用户设备包括： 接收单元，用于接收源基站发送的无线资源管理 RRC连接重配置消息， 所述 RRC 连接重配置消息指示所述用户设备从所述源基站切换到目标基 站， 所述 RRC连接重配置消息具有所述目标基站根据候选的无线高保真接 入点 Wi-Fi AP信息获取的目标 Wi-Fi AP信息； 和
接入单元， 用于在从所述源基站切换到所述目标基站的同时或者切换 完成后， 接入所述目标 Wi-Fi AP。
18. 如权利要求 17所述的用户设备， 其特征在于，
所述接收单元， 还用于接收所述源基站发送的测量任务， 所述测量任 务用于指示所述 UE上^艮检测到的 Wi-Fi AP信息， 所述候选的 Wi-Fi AP信 息包括所述 UE检测到的 Wi-Fi AP信息。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016093989A1 (en) * 2014-12-10 2016-06-16 Intel Corporation Handover to an integrated enode b/ap with context transfer
CN107079449A (zh) * 2014-11-13 2017-08-18 株式会社Kt 使用wlan载波发送/接收数据的方法和装置
CN113423124A (zh) * 2016-04-01 2021-09-21 北京三星通信技术研究有限公司 一种支持无缝切换的方法及基站设备

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103517360B (zh) 2012-06-25 2017-04-19 华为终端有限公司 切换方法、系统及设备
CN102833802B (zh) * 2012-08-15 2015-09-23 电信科学技术研究院 一种数据转发方法及设备
EP2947926B1 (en) * 2013-01-18 2017-08-30 Kyocera Corporation Communication control method and user terminal
US10015713B2 (en) * 2013-06-28 2018-07-03 Telefonaktiebolaget Lm Ericsson (Publ) Methods and network nodes for enhanced mobility between mobile communications networks
CN106233788A (zh) * 2014-04-25 2016-12-14 华为技术有限公司 一种网络切换方法、装置及系统
GB2529300B (en) 2014-06-23 2018-02-07 Airties Kablosuz Iletism Sanayi Ve Disticaret As Systems and methods for selecting an optimum communication route in a wireless network
EP3203776A4 (en) * 2014-09-29 2017-10-18 Huawei Technologies Co. Ltd. Distribution method and apparatus
US10212636B2 (en) * 2014-12-12 2019-02-19 Qualcomm Incorporated Techniques for managing handovers in an unlicensed radio frequency spectrum band
US20160366539A1 (en) * 2015-06-15 2016-12-15 GM Global Technology Operations LLC Exchanging a first short-range wireless communication link for a second short-range wireless communication link in a vehicle
EP3338479B1 (en) * 2015-08-21 2024-05-22 Apple Inc. Radio resource control in cellular/wlan aggregation
US10542469B2 (en) * 2015-08-21 2020-01-21 Samsung Electronics Co., Ltd. Apparatus and method for supporting handover with multi-connectivity in wireless communication system
CN109041137B (zh) * 2016-01-16 2020-01-17 华为技术有限公司 一种切换的方法、基站及终端设备
CN107295580A (zh) * 2016-03-30 2017-10-24 中兴通讯股份有限公司 接入点切换方法及装置
US10313933B2 (en) 2016-04-01 2019-06-04 Lg Electronics Inc. Method and apparatus for enhancing mobility for 3GPP LTE-WLAN aggregation in wireless communication system
EP3451733B1 (en) 2016-04-29 2021-07-14 LG Electronics Inc. Data transmission method performed by base station in wireless communication system, and apparatus using same
US9801067B1 (en) * 2016-05-23 2017-10-24 Htc Corporation Device and method of handling security authentication
US10211907B1 (en) 2016-05-26 2019-02-19 Sprint Spectrum L.P. Coordinated multipoint mode selection for relay base station
WO2018000321A1 (zh) * 2016-06-30 2018-01-04 华为技术有限公司 接入点切换方法、装置及设备
US11122473B2 (en) * 2016-10-11 2021-09-14 Kyocera Corporation Methods for a user equipment device to request MAC messages from a base station
CN109417741B (zh) * 2016-11-16 2021-01-29 华为技术有限公司 数据迁移方法及装置
WO2018124276A1 (en) 2016-12-30 2018-07-05 Sharp Kabushiki Kaisha Systems and methods for new radio mobility
US10237759B1 (en) * 2017-03-29 2019-03-19 Sprint Spectrum L.P. Coordinated multipoint set selection based on donor status
CN109246768A (zh) * 2017-05-05 2019-01-18 中兴通讯股份有限公司 网络连接方法及装置
US10820266B2 (en) * 2018-04-13 2020-10-27 Cisco Technology, Inc. Method and device for dynamic and seamless link selection
US20210321306A1 (en) * 2018-08-17 2021-10-14 Telefonaktiebolaget Lm Ericsson (Publ) First network node, wireless device and methods performed thereby for handling a link switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841880A (zh) * 2010-05-14 2010-09-22 华中科技大学 一种lte和wlan的互连系统和切换方法
CN101848506A (zh) * 2010-03-25 2010-09-29 新邮通信设备有限公司 一种长期演进增强系统中的切换方法和系统
US20110019641A1 (en) * 2009-07-22 2011-01-27 Institute For Information Industry MOBILE NODE, WiMAX BASE STATION, Wi-Fi ACCESS POINT AND HANDOVER METHOD THEREOF FOR USE IN A HETEROGENEOUS WIRELESS NETWORK SYSTEM
CN102415016A (zh) * 2009-04-30 2012-04-11 Lg电子株式会社 支持共址共存模式的方法和装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100735242B1 (ko) * 2003-12-16 2007-07-03 삼성전자주식회사 이동통신 네트워크와 무선 근거리 네트워크의 연동 정보를전달하고 통지하는 방법 및 시스템
US8270368B2 (en) * 2005-09-09 2012-09-18 Panasonic Corporation Radio communication terminal and network side communication apparatus
TW201016066A (en) 2008-10-03 2010-04-16 Kuang Sheng Yun Ltd Method and system for WiFi network high speed mobile voice and multimedia video data communication
WO2010115469A1 (en) * 2009-04-09 2010-10-14 Nokia Siemens Networks Oy Base station caching for an efficient handover in a mobile telecommunication network with relays
US8639243B2 (en) * 2009-08-21 2014-01-28 Qualcomm Incorporated Systems, methods and apparatus configured to manage neighbor cell lists
US20110222523A1 (en) * 2010-03-12 2011-09-15 Mediatek Inc Method of multi-radio interworking in heterogeneous wireless communication networks
US8078175B2 (en) * 2010-03-15 2011-12-13 Motorola Mobility, Inc. Method for facilitating a handover of a communication device, communication device, application server for facilitating a handover of a communication device, and communication system arrangement
KR101712380B1 (ko) * 2010-06-14 2017-03-06 삼성전자주식회사 인지적 간섭 제어 방법 및 장치
US9088922B2 (en) * 2011-10-10 2015-07-21 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for mobile relay handover
EP2815608A4 (en) * 2012-02-17 2015-11-04 Nokia Technologies Oy METHODS, APPARATUSES AND COMPUTER PROGRAM PRODUCTS FOR WLAN DISCOVERY AND TRANSFER IN COEXISTENT LTE AND WLAN NETWORKS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102415016A (zh) * 2009-04-30 2012-04-11 Lg电子株式会社 支持共址共存模式的方法和装置
US20110019641A1 (en) * 2009-07-22 2011-01-27 Institute For Information Industry MOBILE NODE, WiMAX BASE STATION, Wi-Fi ACCESS POINT AND HANDOVER METHOD THEREOF FOR USE IN A HETEROGENEOUS WIRELESS NETWORK SYSTEM
CN101848506A (zh) * 2010-03-25 2010-09-29 新邮通信设备有限公司 一种长期演进增强系统中的切换方法和系统
CN101841880A (zh) * 2010-05-14 2010-09-22 华中科技大学 一种lte和wlan的互连系统和切换方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107079449A (zh) * 2014-11-13 2017-08-18 株式会社Kt 使用wlan载波发送/接收数据的方法和装置
CN107079449B (zh) * 2014-11-13 2020-07-07 株式会社Kt 使用wlan载波发送/接收数据的方法和装置
WO2016093989A1 (en) * 2014-12-10 2016-06-16 Intel Corporation Handover to an integrated enode b/ap with context transfer
US10045261B2 (en) 2014-12-10 2018-08-07 Intel Corporation Methods, systems, and devices for handover in multi-cell integrated networks
CN113423124A (zh) * 2016-04-01 2021-09-21 北京三星通信技术研究有限公司 一种支持无缝切换的方法及基站设备
US11457391B2 (en) 2016-04-01 2022-09-27 Samsung Electronics Co., Ltd. Method and eNB equipment for supporting seamless handover
US11617115B2 (en) 2016-04-01 2023-03-28 Samsung Electronics Co., Ltd. Method and eNB equipment for supporting seamless handover
US11683736B2 (en) 2016-04-01 2023-06-20 Samsung Electronics Co., Ltd. Method and eNB equipment for supporting seamless handover
CN113423124B (zh) * 2016-04-01 2023-10-13 北京三星通信技术研究有限公司 一种支持无缝切换的方法及基站设备

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