WO2014005444A1 - Procédé d'accès, système, entité de gestion de mobilité et équipement utilisateur pour mise en dérivation de réseau local sans fil - Google Patents

Procédé d'accès, système, entité de gestion de mobilité et équipement utilisateur pour mise en dérivation de réseau local sans fil Download PDF

Info

Publication number
WO2014005444A1
WO2014005444A1 PCT/CN2013/073759 CN2013073759W WO2014005444A1 WO 2014005444 A1 WO2014005444 A1 WO 2014005444A1 CN 2013073759 W CN2013073759 W CN 2013073759W WO 2014005444 A1 WO2014005444 A1 WO 2014005444A1
Authority
WO
WIPO (PCT)
Prior art keywords
service
wlan
mme
base station
request message
Prior art date
Application number
PCT/CN2013/073759
Other languages
English (en)
Chinese (zh)
Inventor
梁爽
朱春晖
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2014005444A1 publication Critical patent/WO2014005444A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]

Definitions

  • the present invention relates to the field of mobile communications, and in particular to an access method for offloading to a wireless local area network (Wireless Local Area Network, WLAN for short). And the system, the Mobility Management Entity (MME) and the User Equipment (UE). BACKGROUND OF THE INVENTION
  • MME Mobility Management Entity
  • UE User Equipment
  • 3GPP 3rd Generation Partnership Project
  • EPS Evolved Packet System
  • UMTS Universal Mobile Telecommunications System
  • EUTRAN Evolved UMTS Terrestrial Radio Access Network
  • EDGE Enhanced Data Rate for GSM Evolution
  • GERAN GSM EDGE radio access network
  • UE Equipment, referred to as UE 101
  • UE Equipment
  • an E-UTRAN 102 with an evolved EPS network can provide a higher uplink and downlink rate, Low transmission delay and more reliable wireless transmission
  • the network element included in the E-UTRAN is an evolved Node B (evolved Node B, referred to as eNode B or e B;), providing radio resources for terminal access
  • a Mobility Management Entity (MME) 103 is a control plane entity that temporarily stores user data and is responsible for managing and storing UE contexts (eg, UE/user identity, mobility management state, user security parameters).
  • MME Mobility Management Entity
  • the radio access network (GERAN/UTRAN) 104 of the traditional GSM/UMTS network is divided into a Circuit Switching (CS) domain and a Packet Switching (PS) domain;
  • the GPRS Service Support Node (SGSN) 105 is a control network element of the PS domain of the GSM/UMTS network.
  • the main function is to record the location information of the UE, and the UE and the GPRS Gateway Support Node (Gateway GPRS Supporting Node,
  • the SGSN is responsible for the transmission and reception of mobile packet data between GGSNs.
  • the SGSN is mainly responsible for access control and mobility management when the UE accesses the PS domain from the GSM/UMTS network.
  • the Mobile Switching Center (Mobile Switching Center, referred to as The MSC)/Visitor Location Register (VLR) 106 is the core network element of the CS domain of the GSM/UMTS network, and is responsible for user access, mobility, and control of voice and short message services in the circuit domain, where The MSC/VLR may also be a new functional entity MSC Server after the 3GPP R4 (Release 4) phase (hereinafter unified with the MSC/VLR representative); a Serving Gateway (S-GW for short) / a packet data network gateway ( PDN Gateway, referred to as P-GW) 107, where the service gateway is the gateway of the core network to the wireless system, and is responsible for the user plane bearer of the terminal to the core network, and the terminal is empty.
  • MSC Mobile Switching Center
  • VLR Visitor Location Register
  • packet data network gateway is an evolved packet domain system (EPS) and gateway of the system external network, responsible for terminal IP Address allocation, billing function, packet filtering, policy application, etc.; and Wireless Local Area Networks (WLAN) 108, which can provide different rates of wireless access services according to different air interface technologies, are gradually It replaces the traditional wired local area network, and because the access frequency band is free, it can provide users with lower access fees and save operators a certain operating cost.
  • EPS evolved packet domain system
  • WLAN Wireless Local Area Networks
  • the VLR can notify the MME that the voice session is reached through the SGs interface, and the MME triggers the UE to fall back to the GERAN/UTRAN to access the CS service.
  • the GERAN/UTRAN networks do not support dual-issue and dual-issue of CS services and PS services. That is to say, when the CS service is performed, the PS service is suspended, which causes the interruption of the PS service and the service experience is very bad.
  • the terminal and the network side determine the flow direction of the PS service correctly according to the principle, which may result in the inability to provide the optimal PS for the user. Business experience.
  • an access method for offloading to a WLAN includes the following steps: In the scenario of the CSFB, the MME receives the service request message from the UE by using the base station, where the service request message carries the information that the UE currently has WLAN coverage.
  • the indication information of the MME is determined to access the packet switched PS service from the WLAN according to the indication information.
  • the MME determines, according to the indication information, that the PS service is accessed from the WLAN
  • the MME determines, according to the indication information and the predetermined condition, that the base station does not notify the base station to initiate the PS domain handover, where the predetermined condition includes at least one of the following: The indication of switching the PS service to the WLAN, the RFSP for the indication obtained before the subscription, the local policy configuration, whether the GERAN/UTRAN network to be dropped back supports the circuit-switched CS service and the PS service simultaneously, the WLAN connection of the UE Ability to enter.
  • the determining, by the MME, that the base station does not notify the base station to initiate the PS domain handover according to the foregoing indication information and the foregoing predetermined condition comprises: sending, by the MME, a UE context modification message or a UE context release message to the base station, to notify the base station not to perform the PS domain handover.
  • the method further includes: the base station receiving the UE context modification message or the UE context release message from the MME, and sending a connection release request message to the UE, where The message includes an indication identifier for notifying access to the PS service from the WLAN: a UE context modification message, a UE context release message, and a connection release request message.
  • the method further includes: receiving, by the UE, a connection release request message from the base station, and determining, according to the indication identifier carried in the connection release request message, establishing a data connection by using the WLAN to access the PS service.
  • the CS service includes a CS domain call procedure.
  • the MME determines, according to the indication information, that the PS service is accessed from the WLAN, includes: the MME determines whether to access part of the PS service from the WLAN and reserves another part of the PS service in the 3GPP access system; if yes, the MME returns the service to the UE.
  • the request accepts the message, and the UE determines, according to the received service request accept message, the bearer accessed by the WLAN and/or the bearer that is reserved in the 3GPP access system, where the service request accept message carries the PS indicating the access through the WLAN.
  • the MME determines, according to the indication information, that the PS service is accessed from the WLAN, includes: the MME determines whether to access part of the PS service from the WLAN and reserves another part of the PS service in the 3GPP access system; if yes, the MME passes the base station to the UE Sending a bearer release request message, where the bearer release request message carries an EPS status list, and the UE determines, according to the received bearer release request message from the base station, the bearer accessed through the WLAN and/or the bearer retained in the 3GPP access system,
  • the EPS status list includes information indicating the PS service accessed through the WLAN and/or information indicating the PS service retained in the 3GPP access system.
  • the method further includes: the UE performing WLAN coverage detection in one of the following situations: a policy of the ANDSF download, a priority of the WLAN indicated in the previously received RFSP index,
  • the terminal supports the WLAN module and the EUTRAN access module to work simultaneously; the UE determines that there is currently WLAN coverage according to one of the following: The policy of the ANDSF, the activated WLAN module detects the WLAN signal, and the WLAN data connection has been established.
  • the method further includes: the MME acquiring the subscription data from the home subscriber server HSS, where the subscription data includes one of the following: indicating whether to allow the PS service to be connected from the WLAN in the CSFB process. Incoming information; an RFSP index that defines the subscription of the WLAN to the 3GPP access priority.
  • an MME is provided.
  • the MME includes: a receiving module, configured to receive, by the base station, a service request message from the UE in a scenario of the CSFB, where the service request message carries indication information indicating that the UE currently has WLAN coverage;
  • the determining module is configured to determine to access the packet switched PS service from the WLAN according to the indication information.
  • the UE includes: a sending module, configured to send a service request message to the base station in a scenario of the CSFB, where the service request message carries indication information indicating that the UE currently has WLAN coverage, and the MME according to the indication The information determines that the packet switched PS service is accessed from the WLAN.
  • a sending module configured to send a service request message to the base station in a scenario of the CSFB, where the service request message carries indication information indicating that the UE currently has WLAN coverage
  • the information determines that the packet switched PS service is accessed from the WLAN.
  • An access system for offloading to a WLAN includes the foregoing UE, a base station, and the foregoing MME, where the MME further includes: a notification module, configured to send a UE context modification message or a UE context release message to the base station to notify the base station
  • the base station includes: a transceiver module configured to receive a UE context modification message or a UE context release message from the MME, and send a connection release request message to the UE, where the following messages are included for notifying the permission from the WLAN
  • the indication identifier of the access PS service a UE context modification message, a UE uplink and downlink release message, and a connection release request message; and the UE includes: a PS service access module, configured to receive a connection release request message from the base station, and according to the connection release request message
  • the indication flag carried in the presence or absence of the access GERAN/UTRAN indication determines that the PS service is accessed by using the WLAN to establish a data connection; and
  • the determining module of the MME includes: a determining unit, configured to determine whether to access part of the PS service from the WLAN and to reserve another part of the PS service in the 3GPP access system; and the processing unit, configured to determine that the result is If yes, the service request accept message is returned to the UE, where the service request accept message carries information indicating the PS service accessed through the WLAN and/or information of the PS service retained in the 3GPP access system; or If the judgment result of the judgment unit is YES, the base station sends a bearer release request message to the UE, where the bearer release request message carries an EPS status list, which is used to indicate information and/or reservation of the PS service accessed through the WLAN.
  • a determining unit configured to determine whether to access part of the PS service from the WLAN and to reserve another part of the PS service in the 3GPP access system
  • the processing unit configured to determine that the result is If yes, the service request accept message is returned to the UE, where the service request accept message carries information indicating the PS service
  • the information of the PS service in the 3GPP access system; the UE includes: a decision module, configured to determine, according to the received service request accept message or the bearer release request message from the base station, the bearer accessed through the WLAN and/or retained in the 3GPP a bearer into the system, where the service request accept message or the EPS status list includes an indication to access through the WLAN PS service information and / or PS service indication information retained in the 3GPP access system.
  • the method for accessing the PS service through the WLAN in the CSFB scenario is adopted, and the related technology cannot solve the problem that the flow of the terminal and the network side to determine the PS service in the CSFB scenario is unclear.
  • FIG. 1 is a schematic structural diagram of an evolved packet domain system according to the related art
  • FIG. 2 is a flowchart of an access method for offloading to a WLAN according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of an MME according to an embodiment of the present invention
  • 4 is a structural block diagram of a UE according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of an access system for offloading to a WLAN according to an embodiment of the present invention
  • FIG. 6 is an access system for offloading to a WLAN according to an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of the first manner of implementing the PS service routing from the WLAN according to the first embodiment of the present invention
  • FIG. 8 is a flowchart of the second method for implementing the PS service routing from the WLAN according to the second embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a third method for implementing a PS service route from a WLAN according to Embodiment 3 of the present invention
  • FIG. 10 is a schematic flowchart of a method for implementing a PS service part route from a WLAN according to Embodiment 4 of the present invention
  • 11 is a schematic flowchart of a second method for implementing a PS service part to be routed from a WLAN according to Embodiment 5 of the present invention.
  • FIG. 2 is a flowchart of an access method for offloading to a WLAN according to an embodiment of the present invention. As shown in FIG.
  • the method includes the following steps:
  • the mobility management entity MME
  • PS packet switched
  • the method of accessing the PS service through the WLAN in the CSFB scenario is used to solve the problem that the related technologies cannot provide high quality for the user due to unclear flow of the decision-making PS service in the CSFB scenario.
  • the problem of the PS service experience ensures that the CS domain and the PS domain service can be continuously accessed at the same time, improving the user experience of the PS service.
  • the UE or the terminal in the embodiment of the present invention represents a dual mode terminal capable of accessing the GSM network and the EPS network.
  • the MME may determine, according to the indication information and the predetermined condition, that the base station does not notify the base station to initiate the PS domain handover, where the predetermined condition includes at least one of the following: an indication of the previously subscribed acquisition that allows the terminal to switch the PS service to the WLAN, Whether the previously acquired RAT/Frequency Selection Priority (RFSP) index, local policy configuration, GERAN/UTRAN network to be dropped back to support the circuit-switched CS service and PS The service simultaneously transmits and receives, and the WLAN access capability of the UE.
  • RFSP Radio Resource Selection Priority
  • the determining, by the MME, that the base station does not notify the base station to initiate the PS domain handover according to the foregoing indication information and the foregoing predetermined condition may include: the MME sending a UE context modification message or a UE context release message (for example, an S1 release procedure) to the base station, to notify the base station not to perform the PS Domain switching.
  • the base station may receive a UE context modification message or an S1 release message from the MME, and send a connection release request message to the UE, where the following messages include an indication identifier for notifying that the PS service is allowed to be accessed from the WLAN: UE context Modify message, S1 release message, connection release request message.
  • the UE receives the connection release request message from the base station, and determines to use the WLAN to establish a data connection to access the PS service according to the indication identifier carried in the connection release request message, and accesses the GE service/
  • the UTRAN network initiates a CS service, where the CS service includes a CS domain call procedure; or the UE receives the connection release request message from the base station, and determines that the GERAN/UTRAN indication is not included according to the connection release request message, and uses the WLAN to establish data.
  • the connection connects the PS service and initiates the CS service to the GERAN/UTRAN network, where the CS service includes the CS domain call process.
  • the method can instruct the UE to establish a data connection through the WLAN to access the PS service, and simultaneously drop the CS service to the GERAN/UTRAN network for implementation, thereby realizing the double-receiving and dual-issue of the PS service and the CS service, thereby improving the processing capability of the system.
  • the MME may determine whether to access part of the PS service from the WLAN and reserve another part of the PS service in the 3GPP access system; if yes, the MME may adopt the following two modes: The UE returns a service request accept message, and the UE determines, according to the received service request accept message, a bearer that is accessed through the WLAN and/or a bearer that is reserved in the 3GPP access system, where the service request accept message is carried in the Information about the incoming PS service and/or information of the PS service retained in the 3GPP access system.
  • the MME sends a bearer release request message to the UE by using the base station, where the bearer release request message carries an EPS status list, and the UE determines, according to the received bearer release request message from the base station, the bearer accessed through the WLAN and/or remains.
  • the UE may perform WLAN coverage detection in one of the following situations: Access Network Discovery and Selection Function (ANDSF) downloaded policy, previously received RFSP The priority of the WLAN indicated in the index, the terminal supporting the WLAN module and the EUTRAN access module work simultaneously; secondly, the UE may determine that there is currently WLAN coverage according to one of the following: the policy of the ANDSF, the WLAN module that has been activated detects the WLAN signal, A WLAN data connection has been established.
  • the MME may obtain subscription data from a Home Subscriber Server (HSS), where the subscription data includes one of the following: indicating whether to allow the PS to be used in the CSFB process.
  • HSS Home Subscriber Server
  • FIG. 3 is a structural block diagram of an MME according to an embodiment of the present invention. As shown in FIG.
  • the MME 30 includes: a receiving module 32, configured to receive a service request message from a UE by using a base station in a scenario of a CSFB, where The request message carries indication information indicating that the UE currently has WLAN coverage; and the determining module 34 is coupled to the receiving module 32, and is configured to determine to access the packet switched PS service from the WLAN according to the indication information.
  • the determining module 34 accesses the PS service through the WLAN in the CSFB scenario, and solves the problem that the related technology cannot provide high quality for the user due to unclear flow of the decision-making PS service in the CSFB scenario.
  • FIG. 4 is a structural block diagram of a UE according to an embodiment of the present invention.
  • the UE 40 includes: a sending module 42 that can be coupled to the receiving module 32 of the MME 30, and configured to send to the base station in a scenario of CSFB.
  • the service request message where the service request message carries indication information indicating that the UE 40 currently has WLAN coverage, and the MME 30 determines to access the PS service from the WLAN according to the indication information.
  • FIG. 5 is a structural block diagram of an access system for offloading to a WLAN according to an embodiment of the present invention.
  • the system includes a UE 40, a base station 52, and the foregoing MME 30, where the MME 30 further includes: a notification module 36, coupled to the determining module 34, It is configured to send a UE context modification message or a UE context release message to the base station 52 to notify the base station 52 not to perform PS domain handover.
  • the base station 52 includes: a transceiver module 522 coupled to the notification module 36, configured to receive UE context modification from the MME 30.
  • the message or the UE context release message is sent to the UE 40, and the following message includes an indication identifier for notifying the access to the PS service from the WLAN: the UE context modification message, the S1 release message, and the connection release request.
  • the UE 40 includes: a PS service access module 402, coupled to the transceiver module 522, configured to receive the connection release request message from the base station 52, and according to the indication carried in the connection release request message or without accessing the GERAN/ UTRAN indicates to determine to establish a data connection using WLAN to access PS service; and CS service initiation module 404, coupled To the transceiver module 522, set to GERAN / UTRAN CS network initiated service, wherein, the process including the CS service in the CS call.
  • FIG. 6 is a block diagram of a preferred structure of an access system for offloading to a WLAN according to an embodiment of the present invention.
  • the determining module 34 of the MME 30 includes: a determining unit 342, configured to determine whether to connect part of the PS service from the WLAN.
  • the processing unit 344 is coupled to the determining unit 342, and is configured to return a service request accept message to the UE 40 if the determining unit 342 determines that the result is yes, where The service request accept message carries information indicating the PS service accessed through the WLAN and/or information of the PS service reserved in the 3GPP access system; or, in the case where the determination unit 342 determines that the result is YES, the base station passes The UE sends a bearer release request message to the UE 40, where the bearer release request message carries an EPS status list, which is used to indicate information of the PS service accessed through the WLAN and/or information of the PS service retained in the 3GPP access system;
  • the UE 40 includes: a decision module 406, configured to determine to pass the WLAN according to the received service request accept message or the bearer release request message from the base station 52.
  • FIG. 7 is a schematic flowchart of a method for implementing all the PS services from the WLAN according to the first embodiment of the present invention. As shown in FIG. 7, the process includes the following steps: Step 700: In this process, the UE is attached to the EUTRAN through the EUTRAN. In the network, an SGs interface is established between the MME and the VLR.
  • the MME obtains the subscription data from the Home Subscriber Server (HSS), and the HSS indicates in the subscription data whether to allow the PS service to be connected from the WLAN in the CSFB process.
  • the UE may also report its WLAN access capability to the MME by using an attach request, or a Tracking Area Update (TAU) request.
  • TAU Tracking Area Update
  • the VLR receives a mobile terminal (Mobile Terminal, referred to as MT) as a called call, and sends a paging message to the MME through the SGs interface.
  • Step 702 to step 704 the MME determines whether the UE is in a connected state.
  • the MME sends a CS service notification message to the terminal through the base station; if the UE is in the idle state, the MME paging (Paging) the UE through the base station. It should be noted that the UE described in this embodiment is in an idle state. For the process of the terminal actively initiating a CS call, step 701 704 is not required, and the subsequent steps are directly started from step 705. Step 705: The UE determines whether there is currently WLAN coverage.
  • the UE determines whether there is currently WLAN coverage according to the policy downloaded from the ANDSF, or can start the WLAN module to detect whether there is currently WLAN coverage; or if the terminal supports the WLAN module and the EUTRAN access module to work simultaneously, the UE according to whether there is currently a WLAN connection Determine if there is WLAN coverage. It is assumed as follows that the result of the UE judgment is that there is WLAN coverage. Step 706: The UE sends a service request message to the MME through the base station, where the indication that the current WLAN coverage is present is carried.
  • Step 707 The MME is configured according to at least one of the following conditions: an indication of current WLAN coverage, an indication of previous subscription acquisition, a local policy configuration, whether the GERAN/UTRAN network to be dropped back supports simultaneous CS/PS service transmission, and WLAN access of the terminal ability. It is judged whether the PS service is accessed from the WLAN in the process; if yes, the MME does not notify the base station to initiate the handover. Assume that the result of the MME judgment is YES as follows.
  • Step 708 The MME initiates a UE context modification process, and notifies the eNB that the PS domain handover is not performed. If the message is received, the eNB needs to return a response to the MME.
  • the MME initiates an S1 release process.
  • a new indication may be included to allow access to the PS service from the WLAN.
  • the base station initiates a connection release process of the air interface.
  • the indication is also included in the message.
  • Step 710 After receiving the release request, the UE initiates the PS service to access from the WLAN. If the UE receives the indication, the foregoing operation is performed according to the indication; or, if the UE does not include special information (for example, accessing the GERAN/UTRAN indication), and the UE is confirmed to be the CSFB process, the foregoing operation is performed.
  • Step 711 The UE initiates a CS service fallback and a WLAN data connection establishment. If there is already a WLAN data connection, the UE subsequently transmits all PS services on the connection.
  • Step 712 the MME may initiate the detachment of the EPS and the release of the SGs connection after a period of time. The processes of steps 711 to 712 are similar to the prior art, and are not described herein.
  • FIG. 8 is a schematic flowchart of a second method for implementing all the PS services from the WLAN according to the second embodiment of the present invention. As shown in FIG.
  • Step 800 In this process, the UE passes The EUTRAN is attached to the network and an SGs interface is established between the MME and the VLR. It should be noted that, in the process, when the MME obtains the subscription data from the HSS, the HSS extends the support for the WLAN in the contracted RFSP index in the subscription data, that is, the WLAN and the 3GPP are delivered in the RFSP index. The priority index of the defined Radio Access Technology (RAT).
  • the UE may also report its WLAN access capability to the MME by using an attach request or a TAU request.
  • RAT Radio Access Technology
  • the MME generates the used RFSP index according to the local policy, the capability information of the UE, and the signed RFSP index.
  • the MME may send the used RFSP index to the base station, where the WLAN access priority order is used, and send the base station to the UE when the UE enters the idle state. If the impact of the extension of the RFSP index on the base station is avoided, the MME may send the used RFSP index without the WLAN access priority order to the base station.
  • Step 801 The VLR receives the call as the called party, and sends a paging message to the MME through the SGs interface.
  • the MME sends a CS service notification message to the terminal through the base station; if the UE is in the idle state, the MME pages the UE through the base station. It should be noted that the UE described in this embodiment is in an idle state.
  • step 801 804 is not required, and the subsequent steps are directly started from step 805.
  • the UE determines whether there is currently WLAN coverage. The UE determines whether there is currently WLAN coverage according to the policy downloaded from the ANDSF; or may enable the WLAN module to detect whether there is currently WLAN coverage; or whether the terminal has included the priority of the WLAN according to the previously received RFSP index, and the priority thereof.
  • the WLAN access module is activated, and the UE determines whether there is WLAN coverage at this time. Alternatively, if the terminal supports the WLAN module and the EUTRAN access module to work simultaneously, the UE determines whether there is WLAN coverage according to whether there is a WLAN connection currently. It is assumed as follows that the result of the UE judgment is that there is WLAN coverage. Step 806: The UE sends a service request message to the MME through the base station, where the indication that the current WLAN coverage is present is carried.
  • Step 807 The MME is configured according to at least one of the following conditions: an indication of current WLAN coverage, an RFSP index obtained by previous subscription, a local policy configuration, whether the GERAN/UTRAN network to be dropped back supports CS/PS service simultaneous transmission and reception, and the terminal WLAN access capability. It is judged whether the PS service is accessed from the WLAN in the process. If yes, the MME does not notify the base station to initiate the handover. Assume that the result of the MME judgment is YES as follows.
  • Step 808 The MME initiates a UE context modification process, and notifies the eNB that the PS domain handover is not performed. If the message is received, the eNB needs to return a response to the MME.
  • the MME initiates an S1 release process.
  • an optional indication may be included to allow access to the PS service from the WLAN.
  • the base station initiates a connection release process of the air interface.
  • the indication is also included in the message.
  • the UE After receiving the release request, the UE initiates the PS service to access from the WLAN. If the UE receives the indication, the foregoing operation is performed according to the indication; or, if the UE does not include the special information according to the release request, and the UE is confirmed to be the CSFB process, the foregoing operation is performed.
  • FIG. 9 is a schematic flowchart of a third method for implementing all routes of a PS service from a WLAN according to Embodiment 3 of the present invention. As shown in FIG. 9, the process includes the following steps: Steps 900 to 902, and FIG. 7 Steps 700 to 702 or steps 800 to 802 of FIG.
  • Step 903 The MME determines that the UE is in the connected state, and according to at least one of the following conditions: an indication of subscription acquisition (for example, Embodiment 1) or an RFSP index (for example, Embodiment 2), a local policy configuration, and a GERAN/UTRAN network to be dropped back to. Whether to support CS/PS service simultaneous transmission and reception, terminal WLAN access capability. It is judged whether the PS service is accessed from the WLAN in the process, and if so, the MME indicates the terminal in the CS service notification.
  • Step 904 in addition to the steps described in step 705 in FIG. 7 and step 805 in FIG. 8, it is also possible to determine whether to perform WLAN signal detection according to the indication information in step 903. Step 905 to step 911, and step 706 to step 712 in FIG. 7 or step 806 to step in FIG.
  • FIG. 10 is a schematic flowchart of a method for implementing a route for a PS service part to be routed from a WLAN according to Embodiment 4 of the present invention. As shown in FIG. 10, the process includes the following steps: Before step 1006, in FIG. 7, 8, and 9. Steps X00 to X06 (X stands for 7, 8, 9) are applicable to this embodiment. Step 1007: In addition to performing the judgments in FIG. 7, 8, and 9, the MME further determines whether only part of the PS is carried to the WLAN access, and the rest remains in the 3GPP access system.
  • Step 1008 The MME returns a service request accept message to the terminal, where it indicates which bearers are reserved in the 3GPP access and which are accessed through the WLAN.
  • the MME can give such an indication to all bearers respectively, or indicate which needs to remain in the 3GPP access, then the remaining bearers are accessed through the WLAN, and vice versa.
  • This indication can be represented by an EPS status list.
  • Step 1009 The terminal determines, according to the network indication (can be a status list), which bearers are reserved in the 3GPP access and which are accessed through the WLAN.
  • Step 1010 The MME initiates a bearer release procedure to the base station, and the base station simultaneously releases the bearer of the air interface.
  • Step 1011 The MME sends a UE context modification procedure to the base station, and triggers a PS handover (Handover, referred to as HO) or a release process of the CSFB. The process is the same as the prior art, and is not described herein.
  • Step 1012 The UE initiates a CS service fallback and a WLAN data connection establishment. If there is already a data connection of the WLAN, the UE will subsequently transmit the PS traffic that is not reserved in the 3GPP on the connection.
  • Step 1013 The MME may initiate release of the bearer that is not reserved in the 3GPP after a period of time.
  • the processes in steps 1012 to 1013 are similar to the prior art, and are not described herein.
  • FIG. 11 is a schematic flowchart of a method for implementing a route of a PS service part from a WLAN according to Embodiment 5 of the present invention. As shown in FIG. 11, the process includes the following steps: Before step 1106, in FIG. 7, 8, and 9. Steps X00 to X06 (X stands for 7, 8, 9) are applicable to this embodiment. Step 1107: In addition to performing the judgments in FIG.
  • the MME further determines whether only part of the PS is carried to the WLAN access, and the rest remains in the 3GPP access system.
  • Step 1108 to step 1109 the MME sends a bearer release procedure to the base station, where it indicates which bearers are reserved in the 3GPP access and which are accessed through the WLAN.
  • the base station sends a bearer release request to the terminal, which also indicates which bearers remain in the 3GPP access and which are accessed through the WLAN.
  • the foregoing indication manner may respectively give such indication to all bearers, or indicate which needs to remain in the 3GPP access, then the remaining bearers are accessed through the WLAN, and vice versa.
  • Step 1110 The terminal determines, according to the network indication, which bearers are reserved in the 3GPP access and which are accessed through the WLAN.
  • Step 1111 The UE initiates a CS service fallback and a WLAN data connection establishment. If there is already a data connection of the WLAN, the UE will subsequently transmit the PS traffic that is not reserved in the 3GPP on the connection.
  • Step 1112 The MME may initiate release of the bearer that is not reserved in the 3GPP after a period of time.
  • the processes in steps 1111 to 1112 are similar to the prior art, and are not described herein.
  • the embodiment of the present invention adopts a method of accessing a PS service through a WLAN in a CSFB scenario, and solves the problem in the related art that the flow of the decision-making PS service on the terminal and the network side is unclear in the CSFB scenario.
  • the problem of providing a high-quality PS service experience ensures that the CS domain and the PS domain service can be continuously accessed at the same time, improving the user experience of the PS service.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Landscapes

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

Abstract

L'invention concerne un procédé d'accès, un système, une entité de gestion de mobilité (MME), ainsi qu'un équipement utilisateur (UE) pour mise en dérivation de réseau local sans fil (WLAN). Le procédé selon l'invention comprend les étapes suivantes : dans le scénario d'un repli sur commutation de circuits (CSFB) de services vocaux, une entité de gestion de mobilité reçoit par l'intermédiaire d'une sous-station un message de demande de services provenant d'un équipement utilisateur, ce message contenant des informations indiquant que l'équipement utilisateur est couvert par un WLAN (S202); l'entité de gestion de mobilité décide, en fonction des indications reçues, de permettre ou non l'accès à des services à commutation de paquets à partir du WLAN (S204). La présente invention permet de résoudre le problème des antériorités dans un scénario de repli sur commutation de circuits, lorsque l'utilisateur ne peut pas recevoir de services à commutation de paquets de haute qualité parce que le flux de services à commutation de paquets n'est pas clairement déterminé par le terminal et le réseau. La présente invention assure un accès simultané par le domaine de commutation de circuits et aux services du domaine de commutation de paquets, et améliore ainsi l'expérience utilisateur des services à commutation de paquets.
PCT/CN2013/073759 2012-05-14 2013-04-03 Procédé d'accès, système, entité de gestion de mobilité et équipement utilisateur pour mise en dérivation de réseau local sans fil WO2014005444A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210149009.X 2012-05-14
CN201210149009XA CN103428822A (zh) 2012-05-14 2012-05-14 分流到无线局域网络的接入方法及系统、mme和ue

Publications (1)

Publication Number Publication Date
WO2014005444A1 true WO2014005444A1 (fr) 2014-01-09

Family

ID=49652806

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/073759 WO2014005444A1 (fr) 2012-05-14 2013-04-03 Procédé d'accès, système, entité de gestion de mobilité et équipement utilisateur pour mise en dérivation de réseau local sans fil

Country Status (2)

Country Link
CN (1) CN103428822A (fr)
WO (1) WO2014005444A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111314908A (zh) * 2018-02-09 2020-06-19 Oppo广东移动通信有限公司 无线通信的方法、网络设备和终端设备

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102207484B1 (ko) 2013-08-30 2021-01-26 삼성전자 주식회사 무선 랜에서 다중 연결을 지원하는 방법 및 장치
CN106303349A (zh) * 2015-05-27 2017-01-04 南宁富桂精密工业有限公司 Scc应用服务器及视频通话转移方法
CN107925934B (zh) 2015-09-18 2022-06-03 富士通株式会社 网络指示的处理装置、方法以及通信系统
CN107306405A (zh) * 2016-04-18 2017-10-31 展讯通信（上海）有限公司 一种数据业务处理方法及装置
CN107920377A (zh) * 2016-10-09 2018-04-17 中国移动通信有限公司研究院 移动和连接状态转移机制处理方法及装置
US10129921B2 (en) * 2017-01-06 2018-11-13 Mediatek Inc. Enhanced PS domain data-off mechanism
CN109429272B (zh) * 2017-08-31 2022-02-11 华为技术有限公司 一种漫游场景下的分流方法及相关设备
CN109819530B (zh) * 2017-11-21 2023-12-08 华为技术有限公司 一种通信方法及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102045791A (zh) * 2009-10-17 2011-05-04 中兴通讯股份有限公司 一种eps中电路交换回落业务的实现方法和系统
US20120069817A1 (en) * 2010-09-20 2012-03-22 Xinhua Ling Methods and apparatus to provide packet switched service continuity during circuit switched fallback operation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010114660A (ja) * 2008-11-06 2010-05-20 Toshiba Corp 移動通信システムおよび移動通信方法
JP2010093838A (ja) * 2009-12-04 2010-04-22 Ntt Docomo Inc 移動通信方法、交換局及び無線基地局

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102045791A (zh) * 2009-10-17 2011-05-04 中兴通讯股份有限公司 一种eps中电路交换回落业务的实现方法和系统
US20120069817A1 (en) * 2010-09-20 2012-03-22 Xinhua Ling Methods and apparatus to provide packet switched service continuity during circuit switched fallback operation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
RESEARCH IN MOTION LTD.: "Discussion paper on optimized offloading to WLAN", 3GPP RAT MOBILITY. SA WG2 MEETING #90, S2-121455, 20 April 2012 (2012-04-20), UK *
ZTE CORP. ET AL., PS HANDOVER TO WLAN DURING CSFB. SA WG2 MEETING #95, S2-130536, 1 February 2013 (2013-02-01) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111314908A (zh) * 2018-02-09 2020-06-19 Oppo广东移动通信有限公司 无线通信的方法、网络设备和终端设备
CN111314908B (zh) * 2018-02-09 2023-09-22 Oppo广东移动通信有限公司 无线通信的方法、网络设备和终端设备

Also Published As

Publication number Publication date
CN103428822A (zh) 2013-12-04

Similar Documents

Publication Publication Date Title
JP7366356B2 (ja) ワイヤレスネットワークによるワイヤレスデバイスのページング
JP6657169B2 (ja) 無線通信システムでサービスを制御するための方法
WO2019096077A1 (fr) Procédé de transfert intercellulaire de réseau et élément de réseau de gestion de session
CN105850176B (zh) 在移动通信系统中用于控制拥塞的方法和设备
EP2291014B1 (fr) Procédé et terminal correspondant pour une mise à jour de relation d'association
WO2014005444A1 (fr) Procédé d'accès, système, entité de gestion de mobilité et équipement utilisateur pour mise en dérivation de réseau local sans fil
WO2009094916A1 (fr) Procédé, système et dispositif de commande pour redémarrage après défaillance dans le domaine circuit
JP2020506620A (ja) 要求に対する応答方法及びネットワーク装置
KR101761632B1 (ko) 근접 서비스 기반의 무선 접속 방식 변경 방법 및 장치
EP2259657B1 (fr) Procédé pour indiquer la gestion de support de la passerelle de desserte
WO2011044825A1 (fr) Procédé et système d'activation de service de repli sur commutation de circuits dans un système de paquets évolué
KR20150014834A (ko) 특정 서비스를 지속적으로 제공하는 방법 및 장치
CN101730072B (zh) 在多接入场景下分组数据网络网关标识的保存方法及系统
JP2011527537A (ja) アイドルモードにおけるシグナリング節約機能の活性化判断方法及びシステム
WO2009097811A1 (fr) Procédé, dispositif et système permettant à des utilisateurs dans un domaine ps de traiter avec des services dans un domaine cs
WO2014005536A1 (fr) Procédé, dispositif et système de communication pour des terminaux voisins
CN110719613B (zh) 一种建立语音业务的方法及装置
CN103037452A (zh) 支持话音业务连续性的方法
WO2012122910A1 (fr) Procédé et système de communication à double canal
US20170251451A1 (en) Apparatus and method for paging in wireless communication system
CN103517255A (zh) 一种业务分流方法、移动性管理实体及终端
WO2013107240A1 (fr) Procédé de compte-rendu de capacité d'accès sans fil, station de base et procédé et système de contrôle de règle
CN115361660B (zh) 用于语音业务的通信方法、装置和系统
WO2010099741A1 (fr) Procédé de sélection de réseau, dispositif et terminal
KR102202359B1 (ko) 영상통화 서비스 품질을 높이는 방법 및 장치

Legal Events

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

Ref document number: 13813394

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13813394

Country of ref document: EP

Kind code of ref document: A1