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WO2015096720A1 - Procédé, système et dispositif de prise de décision de transfert - Google Patents

Procédé, système et dispositif de prise de décision de transfert Download PDF

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Publication number
WO2015096720A1
WO2015096720A1 PCT/CN2014/094746 CN2014094746W WO2015096720A1 WO 2015096720 A1 WO2015096720 A1 WO 2015096720A1 CN 2014094746 W CN2014094746 W CN 2014094746W WO 2015096720 A1 WO2015096720 A1 WO 2015096720A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
handover
cellular network
side device
network side
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/094746
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English (en)
Chinese (zh)
Inventor
刘爱娟
王彦
梁靖
周燕飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Publication of WO2015096720A1 publication Critical patent/WO2015096720A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system and device for performing handover decision.
  • the Evolved Packet System (EPS) system is a system that supports multiple access technologies and multiple inter-access mobility.
  • the terminal may be under common coverage of multiple 3rd Generation Partnership Projects (3GPPs) and/or non-3GPP access networks. These access networks may use different access technologies, may belong to different operators, or may provide access to different core networks.
  • 3GPPs 3rd Generation Partnership Projects
  • LTE Long Term Evolution
  • WLAN Wireless Local Area Network
  • the user equipment switches between the 3GPP radio access technologies (RATs), which are measured by the network side according to the measurement reports of the UE and the load of the network. It is determined that the handover between the 3GPP RAT and the WLAN by the UE is determined by the UE according to the Access Network Discovery and Selection Function (ANDSF) policy, the configuration information of the network, and the signal measurement result.
  • ANDSF Access Network Discovery and Selection Function
  • the present invention provides a method, a system, and a device for performing a handover decision, which may solve the problem that the UE may perform continuous unnecessary handover in a scenario where UMTS/LTE and WLAN coexist in the prior art.
  • An embodiment of the present invention provides a method for performing a handover decision, including:
  • the user equipment After connecting to the cellular network, the user equipment determines whether to switch to the non-cellular network;
  • the user equipment After determining that the user equipment needs to be handed over to the non-cellular network, the user equipment sends a notification message to the currently-connected network side device to switch to the non-cellular network, so that the network side device avoids or suspends the switching operation for the user equipment. .
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • the user equipment sends a notification message to the currently connected network side device to switch to the non-cellular network, including:
  • the user equipment After determining that the user equipment needs to switch to the non-cellular network and receives the handover command from the network side device, the user equipment sends a notification message to the currently accessed network side device to switch to the non-cellular network.
  • the user equipment further includes:
  • the user equipment receives a handover command from the network side device, ignoring the handover command, and switching to a non-cellular network;
  • the user equipment switches to the non-cellular network.
  • An embodiment of the present invention provides another method for performing a handover decision, including:
  • the network side device receives a notification message from the user equipment to the non-cellular network, where the notification message is sent after the user equipment connects to the cellular network and determines that it needs to switch to the non-cellular network;
  • the network side device avoids or suspends a handover operation for the user equipment.
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • the network side device avoids or suspends the switching operation for the user equipment, including:
  • the network side device receives the notification message before making a decision on the handover of the user equipment, stopping the decision;
  • the network side device determines that the user equipment needs to be handed over, and receives the notification message before sending the handover command, stopping sending the handover command to the user equipment;
  • the network side device receives the notification message after sending the handover command to the user equipment, stopping the subsequent handover operation
  • the network side device receives the notification message after sending the handover command to the user equipment, sending a handover cancellation command to the user equipment, and stopping the subsequent handover operation.
  • An embodiment of the present invention provides a user equipment that performs a handover decision, and includes:
  • a judging module configured to determine whether to switch to the non-cellular network after connecting to the cellular network
  • a processing module configured to: after the determining module determines that the switch needs to be switched to the non-cellular network, send a notification message to the currently accessed network side device to switch to the non-cellular network, so that the network side device avoids or suspends the User equipment switching operation.
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • the processing module is specifically configured to:
  • the determining module determines that it is required to switch to the non-cellular network, and receives the handover command from the network side device, the notification message that is switched to the non-cellular network is sent to the currently accessed network side device.
  • the processing module is further configured to:
  • the determining module determines that it is required to switch to the non-cellular network, if receiving a handover command from the network side device, ignoring the handover command and switching to the non-cellular network; or
  • the determining module determines that the handover to the non-cellular network is required, if the handover command from the network side device is received, the handover command is switched to the non-cellular network after receiving the handover cancellation command from the network side device.
  • the embodiment of the invention provides a network side device that performs a handover decision, and includes:
  • a receiving module configured to receive a notification message from the user equipment to the non-cellular network, where the notification message is sent by the user equipment after connecting to the cellular network and determining that the handover needs to be performed to the non-cellular network;
  • An operation module for avoiding or suspending a switching operation for the user equipment.
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • the operation module is specifically configured to:
  • the handover cancellation command is sent to the user equipment, and the subsequent handover operation is stopped.
  • An embodiment of the present invention provides a system for performing handover determination, including:
  • the user equipment is configured to determine whether to switch to the non-cellular network after connecting to the cellular network, and send a notification message to the currently-connected network side device to switch to the non-cellular network after determining that the handover needs to be performed to the non-cellular network,
  • the network side device is caused to avoid or suspend a handover operation for the user equipment.
  • a network side device configured to receive a notification message from the user equipment to the non-cellular network, where the notification message is sent after the user equipment is connected to the cellular network, and is determined to need to switch to the non-cellular network; avoid or abort The switching operation of the user equipment.
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • An embodiment of the present invention provides a user equipment that performs a handover decision, and includes:
  • the processor is configured to determine whether to switch to the non-cellular network after connecting to the cellular network, and send a notification to the currently accessed network side device to switch to the non-cellular network after determining that the handover to the non-cellular network is determined a message, so that the network side device avoids or suspends a handover operation for the user equipment;
  • a transceiver for transmitting and receiving data under the control of a processor.
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • the processor is specifically configured to:
  • the transceiver After determining that a handover to the non-cellular network is required, and receiving a handover command from the network-side device by the transceiver, the transceiver sends a notification message to the currently-connected network-side device to switch to the non-cellular network.
  • the processor is further configured to:
  • the handover command is ignored and switched to the non-cellular network
  • the transceiver After determining that it is necessary to switch to the non-cellular network, if the transceiver receives a handover from the network side device Then, after receiving the handover cancel command from the network side device through the transceiver, the switch is switched to the non-cellular network.
  • the embodiment of the invention provides a network side device that performs a handover decision, and includes:
  • a processor configured to avoid or suspend a handover operation for the user equipment after receiving, by the transceiver, a handover message from the user equipment to the non-cellular network, where the notification message is that the user equipment is connected to the cellular network, And determine that it needs to be switched to the non-cellular network and sent;
  • a transceiver for transmitting and receiving data under the control of a processor.
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • the processor is specifically configured to:
  • the handover cancellation command is sent to the user equipment, and the subsequent handover operation is stopped.
  • FIG. 1 is a schematic structural diagram of a system for performing handover determination according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of user equipment in a system for performing handover determination according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic structural diagram of a network side device in a system for performing handover determination according to Embodiment 3 of the present invention
  • FIG. 4 is a schematic structural diagram of user equipment in a system for performing handover determination according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a network side device in a system for performing handover determination according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic flowchart of a method for performing handover decision according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic flowchart of a method for performing handover decision according to Embodiment 7 of the present invention.
  • FIG. 8 is a schematic diagram of an application scenario of performing handover determination according to Embodiment 8 of the present invention.
  • Embodiment 9 is a schematic flowchart of a method for performing handover decision according to Embodiment 9 of the present invention.
  • FIG. 10 is a schematic diagram of an application scenario of performing handover determination according to Embodiment 10 of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • user equipment includes but is not limited to a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset).
  • the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular"
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular"
  • the telephone device, the computer with wireless communication function, etc., the user equipment can also be a mobile device that is portable, pocket-sized, handheld, built-in, or in-vehicle.
  • a base station may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • NodeB evolved base station
  • LTE Long Term Evolutional Node B
  • the user equipment after determining that the user equipment needs to be handed over to the non-cellular network, the user equipment sends a notification message to the currently-connected network side device to switch to the non-cellular network, so that the network side device avoids or suspends the user equipment. Switch operations.
  • the user equipment can notify the network side device of the notification of the network side device, and the network side device can avoid or suspend the network device to notify the network device that the user equipment is to be switched to the non-cellular network.
  • the switching operation of the user equipment in the scenario of coexistence of UMTS/LTE and WLAN, avoids the situation that the UE performs continuous unnecessary handover, and further improves resource utilization and system performance.
  • the user equipment connected to the cellular network is configured according to network side configuration information, auxiliary information, and The ANDSF policy determines that the user equipment should send an indication to the network side when it switches to a non-cellular network.
  • the network side can be prevented from switching to all the bearers of the user equipment according to the measurement report of the user equipment, and the user equipment quickly switches to the non-cellular network according to its own switching policy. That is, the network side can switch the service from the current serving cell to the target network by considering that the user equipment has detected the appropriate target network and does not perform the handover operation on the user equipment.
  • the non-cellular network of an embodiment of the present invention may be any network other than a cellular network, such as a WLAN.
  • the system for performing handover determination in the first embodiment of the present invention includes: a user equipment 10 and a network side device 11.
  • the user equipment 10 is configured to determine whether to switch to the non-cellular network after connecting to the cellular network, and send a notification message to the currently-connected network side device to switch to the non-cellular network after determining that the handover to the non-cellular network is required, So that the network side device avoids or suspends a handover operation for the user equipment;
  • the network side device 11 is configured to receive, by the network side device, a notification message from the user equipment to the non-cellular network, where the notification message is sent after the user equipment is connected to the cellular network, and is determined to need to switch to the non-cellular network; Switching operations for the user equipment are avoided or suspended.
  • the user equipment may send a notification message to the currently accessed network side device to switch to the non-cellular network.
  • the network side device Since not every time the user equipment determines that it is necessary to switch to the non-cellular network, the network side device also determines that the user equipment needs to perform handover, so a preferred way is:
  • the user equipment After determining that the user equipment needs to switch to the non-cellular network and receives the handover command from the network side device, the user equipment sends a notification message to the currently accessed network side device to switch to the non-cellular network.
  • the notification message for switching to the non-cellular network may not be sent to the currently accessed network side device, and if not received, A notification message for switching to the non-cellular network may be sent to the currently accessed network side device.
  • Manner 1 If the network side device receives the notification message before making a decision on the handover of the user equipment, stopping the determination, that is, avoiding the handover operation for the user equipment.
  • Manner 2 If the network side device determines that the user equipment needs to be switched, and receives the handover command before receiving the handover command The notification message stops sending the handover command to the user equipment, that is, avoids a handover operation for the user equipment.
  • Manner 4 If the network side device sends the notification message after sending the handover command to the user equipment, send a handover cancellation command to the user equipment, and stop the subsequent handover operation, that is, suspend the user Switching operation of the device.
  • the handover command is ignored and switched to the non-cellular network.
  • the user equipment For the fourth mode, if the user equipment receives the handover command from the network side device, after receiving the handover cancellation command from the network side device, the user equipment switches to the non-cellular network.
  • the user equipment may also set a timer, start timing after sending the notification message to the network side device, and if the handover cancellation command from the network side device is not received within the set duration,
  • a timer start timing after sending the notification message to the network side device, and if the handover cancellation command from the network side device is not received within the set duration
  • the embodiment of the present invention provides a structure of a user equipment in a system for performing handover determination according to an embodiment of the present invention. For details, refer to FIG. 2 .
  • the user equipment in the system for performing handover determination according to the second embodiment of the present invention includes: a determining module 200 and a processing module 210.
  • the determining module 200 is configured to determine whether to switch to the non-cellular network after connecting to the cellular network;
  • the processing module 210 is configured to: after the determining module 200 determines that the switch needs to be switched to the non-cellular network, send a notification message to the currently accessed network side device to switch to the non-cellular network, so that the network side device avoids or suspends the The switching operation of the user equipment.
  • the processing module 210 is specifically configured to:
  • the determining module 200 determines that it is required to switch to the non-cellular network, and receives the handover command from the network side device, it sends a notification message to the currently accessed network side device to switch to the non-cellular network.
  • processing module 210 is further configured to:
  • the determining module 200 determines that it is necessary to switch to the non-cellular network, if receiving a handover command from the network side device, ignoring the handover command and switching to the non-cellular network; or
  • the determining module 200 determines that it is required to switch to the non-cellular network, if receiving the handover command from the network side device, after receiving the handover cancel command from the network side device, switching to the non-cellular network .
  • the embodiment of the present invention provides a structure of a network side device in a system for performing handover determination according to an embodiment of the present invention. For details, refer to FIG. 3 .
  • the network side device in the system for performing handover determination according to Embodiment 3 of the present invention includes:
  • the receiving module 300 is configured to receive a notification message from the user equipment to the non-cellular network, where the notification message is sent by the user equipment after connecting to the cellular network and determining that the handover needs to be performed to the non-cellular network;
  • the operation module 310 is configured to avoid or suspend a switching operation for the user equipment.
  • the operation module 310 is specifically configured to:
  • the handover cancellation command is sent to the user equipment, and the subsequent handover operation is stopped.
  • the embodiment of the present invention provides a structure of a user equipment in a system for performing handover determination according to an embodiment of the present invention. For details, refer to FIG. 4 .
  • the user equipment in the system for performing handover determination according to Embodiment 4 of the present invention includes:
  • the processor 400 is configured to determine, after connecting to the cellular network, whether to switch to the non-cellular network, and after determining that the handover to the non-cellular network is determined, the transceiver 410 sends the handover to the non-cellular network to the currently accessed network side device. Notification message to enable the network side device to avoid or suspend a handover operation for the user equipment;
  • the transceiver 410 is configured to send and receive data under the control of the processor 400.
  • the processor 400 is specifically configured to:
  • the transceiver 410 After determining that a handover to the non-cellular network is required, and receiving a handover command from the network-side device through the transceiver 410, the transceiver 410 transmits a notification message to the currently-connected network-side device to the non-cellular network.
  • the processor 400 is further configured to:
  • the handover command is ignored and switched to the non-cellular network
  • the switch command from the network side device is received by the transceiver 410, after receiving the switch cancel command from the network side device by the transceiver 410, the switch is not performed. In a cellular network.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 400 and various circuits of memory represented by memory 420.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 410 can be a plurality of components, including a transmitter and a receiver, for providing communication with various other devices on a transmission medium. unit.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.
  • An embodiment of the present invention provides a structure of a network side device in a system for performing handover determination according to an embodiment of the present invention. For details, refer to FIG. 5.
  • the network side device in the system for performing handover determination according to Embodiment 5 of the present invention includes:
  • the processor 500 is configured to avoid or suspend a handover operation for the user equipment after receiving a notification message from the user equipment to the non-cellular network by using the transceiver 510, where the notification message is that the user equipment is connected to the cellular Network, and determined to be sent after switching to a non-cellular network;
  • the transceiver 510 is configured to send and receive data under the control of the processor 500.
  • the processor 500 is specifically configured to:
  • the handover cancellation command is sent to the user equipment, and the subsequent handover operation is stopped.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 510 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 530 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the embodiment of the present application further provides a method for performing a handover decision.
  • the method for solving the problem in the method of the embodiment of the present application is similar to the device in the embodiment of the present application.
  • the implementation of the device of the application embodiment is not repeated here.
  • the method for performing handover decision according to Embodiment 6 of the present invention includes:
  • Step 601 After connecting to the cellular network, the user equipment determines whether to switch to the non-cellular network.
  • Step 602 After determining that the user equipment needs to be handed over to the non-cellular network, the user equipment sends a notification message to the currently-connected network side device to switch to the non-cellular network, so that the network side device avoids or suspends the user equipment. Switching operation.
  • the user equipment sends a notification message to the currently connected network side device to switch to the non-cellular network, including:
  • the user equipment After determining that the user equipment needs to switch to the non-cellular network and receives the handover command from the network side device, the user equipment sends a notification message to the currently accessed network side device to switch to the non-cellular network.
  • the user equipment further includes:
  • the user equipment receives a handover command from the network side device, ignoring the handover command, and switching to a non-cellular network;
  • the user equipment switches to the non-cellular network.
  • the method for performing handover decision according to Embodiment 7 of the present invention includes:
  • Step 701 The network side device receives a notification message from the user equipment to the non-cellular network, where the notification message is sent by the user equipment after connecting to the cellular network, and determining that the handover needs to be performed to the non-cellular network;
  • Step 702 The network side device avoids or suspends a handover operation for the user equipment.
  • the network side device avoids or suspends the switching operation for the user equipment, including:
  • the network side device receives the notification message before making a decision on the handover of the user equipment, stopping the decision;
  • the network side device determines that the user equipment needs to be handed over, and receives the notification message before sending the handover command, stopping sending the handover command to the user equipment;
  • the network side device receives the notification message after sending the handover command to the user equipment, stopping the subsequent handover operation
  • the network side device receives the notification message after sending the handover command to the user equipment, sending a handover cancellation command to the user equipment, and stopping the subsequent handover operation.
  • the UMTS is widely covered.
  • the operator deploys the LTE hotspot in the more promising commercial area.
  • WIFI hotspots The UE starts to connect to the LTE CELL1.
  • the UE moves, the UE moves out of the coverage of the LTE cell1 and enters the coverage area of the WIFI hotspot.
  • the UE is a low-speed mobile UE, and the ANDSF policy configured by the core network to the UE is LTE ⁇ WLAN, UMTS ⁇ WLAN.
  • the embodiment of the present invention provides a method for performing a handover decision, as shown in FIG.
  • Step 901 The UE is connected to the LTE cell, and considering that there is a WIFI hotspot around, the UE's serving cell will The handover threshold between the 3GPP RAT and the WLAN is sent to the UE through system messages or dedicated signaling.
  • Step 902 The UE sends a periodic measurement report or an event triggered measurement report.
  • Step 903 The UE arrives at the edge of the LTE cell as the UE moves.
  • the serving cell of the UE decides that the UE needs to move to the UMTS cell 2 according to the measurement report of the UE.
  • the serving cell UE should switch to the WLAN hotspot according to its ANDSF policy and the handover threshold decision of the serving cell configuration.
  • Step 904 The UE sends a notification message to the network side to switch to the non-cellular network.
  • Step 905 After the UE is connected to the UMTS cell, the measurement of the 3GPP RAT and the WLAN is continued, and according to the measurement result and the ANDSF policy, the UE switches to the wlan hotspot.
  • Step 906 The WLAN provides a service for the UE.
  • the LTE cell2 is widely covered.
  • the LTE hotspot is deployed in the more promising commercial area operators.
  • the UE starts to connect to the LTE CELL1.
  • the UE moves, the UE moves out of the coverage of the LTE cell1 and enters the coverage area of the WIFI hotspot.
  • the ANDSF policy configured by the core network for the UE is LTE ⁇ WLAN.
  • the LTE hotspot cell cell1 and the WLAN hotspot are deployed in the area covered by LTE.
  • the LTE cell1 may switch the UE to the LTE cell2, and the UE may decide to switch to the WLAN according to its own handover decision, in order to avoid short
  • the LTE CELL1->LTE CELL2->WLAN is not necessary for continuous handover.
  • the UE detects the appropriate WLAN cell, it sends an indication to the serving LTE cell1 that it detects the appropriate wlan cell.
  • the state of the network the state of the UE determines that the LTE internal handover may not be initiated to the UE to avoid unnecessary handover procedures.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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

Abstract

La présente invention concerne le domaine technique des communications sans fil, et plus particulièrement un procédé, un système et un dispositif destinés à prendre une décision de transfert, qui sont utilisés pour résoudre le problème rencontré dans l'état antérieur de la technique, qui est qu'un équipement d'utilisateur (UE) peut effectuer un transfert superflu continu dans un scénario où un UMTS/LTE et un WLAN coexistent. Selon les modes de réalisation de la présente invention, l'UE, après avoir déterminé qu'il doit être transféré à un réseau non cellulaire, envoie un message de notification indiquant le transfert vers le réseau non cellulaire à un dispositif côté réseau auquel l'UE accède actuellement, de telle sorte que le dispositif côté réseau évite ou arrête les opérations de transfert sur l'UE. Au moyen des solutions des modes de réalisation de la présente invention, le dispositif côté réseau peut arrêter les opérations de transfert sur l'UE, de façon à empêcher l'UE d'effectuer un transfert superflu continu dans le scénario où l'UMTS/LTE et le WLAN coexistent, améliorant ainsi encore le taux d'utilisation des ressources et les performances du système.
PCT/CN2014/094746 2013-12-25 2014-12-24 Procédé, système et dispositif de prise de décision de transfert Ceased WO2015096720A1 (fr)

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CN103686797B (zh) * 2013-12-25 2017-06-23 电信科学技术研究院 一种进行切换判决的方法、系统和设备
CN103974333B (zh) * 2014-05-16 2017-07-28 西安电子科技大学 针对svc视频业务和移动速度的负载均衡方法
CN105493548B (zh) * 2014-08-07 2019-06-28 华为技术有限公司 网络移动性优化的方法、装置及系统
CN107295605B (zh) * 2016-04-01 2019-07-02 电信科学技术研究院 一种无线局域网络标识信息的处理方法、装置、设备及基站
CN106658630B (zh) * 2016-06-30 2021-01-26 努比亚技术有限公司 一种通信终端、基站、系统及方法

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