WO2016000097A1 - Procédé de transfert intercellulaire, station de base évoluée et entité de gestion de mobilité - Google Patents

Procédé de transfert intercellulaire, station de base évoluée et entité de gestion de mobilité Download PDF

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Publication number
WO2016000097A1
WO2016000097A1 PCT/CN2014/079575 CN2014079575W WO2016000097A1 WO 2016000097 A1 WO2016000097 A1 WO 2016000097A1 CN 2014079575 W CN2014079575 W CN 2014079575W WO 2016000097 A1 WO2016000097 A1 WO 2016000097A1
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WO
WIPO (PCT)
Prior art keywords
utran
terminal
request message
handover
mme
Prior art date
Application number
PCT/CN2014/079575
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English (en)
Chinese (zh)
Inventor
琚志强
张立文
周琳
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 CN201480013276.1A priority Critical patent/CN105519189A/zh
Priority to PCT/CN2014/079575 priority patent/WO2016000097A1/fr
Publication of WO2016000097A1 publication Critical patent/WO2016000097A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • 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
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks

Definitions

  • Embodiments of the present invention relate to the field of communications, and, more particularly, to a method for handover, an evolved base station, and a mobility management entity. Background technique
  • the Instant Message (IM) service is a service that performs communication services in real time.
  • IM services commonly found on the Internet are Windows Live Messenger, AOL Instant Messenger, Skype, WhatsApp, Gmail Talk, Yahoo! Messenger, .NET Messenger Service, Jabber, Tencent QQ, Fetion, and everyone's desktop.
  • IM services in the form of applications (APP) are favored and used by more and more users.
  • APP applications
  • LTE Long Term Evolution
  • EPS Evolved Packet System
  • Small data packets are a basic feature of the IM business.
  • the bandwidth allocated by LTE is much larger than the requirement of transmitting small data packets, so there is a large amount of padding in the MAC PDU, which results in insufficient utilization of network resources and low transmission efficiency.
  • the embodiment of the invention provides a method for handover, which can switch the terminal of the E-UTRAN packet service to the UTRAN, thereby reducing the filling of the data packet.
  • a method for handover comprising: when detecting that a service of a terminal in an evolved universal terrestrial radio access network E-UTRAN is a packet service, the evolved base station eNB generates a handover request message The eNB sends the handover request message to the mobility management entity MME, where the handover request message includes the identifier information of the terminal and the identifier information of the packet service, where the handover request message is used to request the MME to perform Cross-radio access technology RAT Switching to cause the terminal to handover from the E-UTRAN to the universal terrestrial radio access network UTRAN for packet service.
  • the method further includes: the eNB receiving a handover command message sent by the MME; the eNB sending a handover command to the terminal, The terminal is caused to switch to the UTRAN.
  • a second aspect provides a method for handover, where the method includes: a mobility management entity MME receiving a handover request message sent by an evolved base station eNB, where the handover request message is detected by the eNB as an evolved type
  • the handover request message includes the identifier information of the terminal and the identifier information of the packet service, and the handover request message is used to request
  • the MME performs a cross-RAT access handover to enable the terminal to handover from the E-UTRAN to a universal terrestrial radio access network UTRAN for packet service; the MME performs inter-RAT handover according to the handover request message So that the terminal switches from the E-UTRAN to the UTRAN for packet service.
  • the performing, by the MME, the cross-RAT handover according to the handover request message includes: sending, by the MME, a forwarding relocation request message to a serving general packet radio
  • the service support node SGSN is configured to map the default evolved packet system EPS bearer context to the universal mobile communication system UMTS power delay PDP context; the MME receives the forward relocation response message sent by the SGSN.
  • the method further includes: the MME sending a handover command message to the eNB.
  • an evolved base station eNB includes: a generating unit, configured to generate a handover request when detecting that a service of a terminal in the evolved universal terrestrial radio access network E-UTRAN is a packet service a sending unit, configured to send the handover request message generated by the generating unit to the mobility management entity MME, where the handover request message includes identifier information of the terminal and identifier information of the packet service, the handover The request message is used to request the MME to perform a cross-radio access technology RAT handover such that the terminal switches from the E-UTRAN to the universal terrestrial radio access network UTRAN for packet service.
  • the eNB further includes: a receiving unit, where the receiving unit is configured to receive a handover command message sent by the MME; Used to send a handover command to the terminal, so that the terminal switches to the terminal UTRAN.
  • a mobility management entity MME includes: a receiving unit, configured to receive a handover request message sent by an evolved base station eNB, where the handover request message is performed by the eNB
  • the handover request message includes the identifier information of the terminal and the identifier information of the packet service
  • the handover The request message is used to request the MME to perform a cross-radio access technology RAT handover, so that the terminal switches from the E-UTRAN to the universal terrestrial radio access network UTRAN for packet service
  • an execution unit configured to receive according to the The handover request message received by the unit performs cross-RAT handover, so that the terminal switches from the E-UTRAN to the UTRAN for packet service.
  • the execution unit includes: a sending subunit and a receiving subunit: the sending subunit, configured to send a forwarding relocation request message to a service
  • the general packet radio service support node SGSN is configured to map the default evolved packet system EPS bearer context to the universal mobile communication system UMTS power delay PDP context; the receiving subunit is configured to receive the forward relocation response message sent by the SGSN .
  • the MME further includes: a sending unit, configured to send a handover command message To the eNB.
  • the eNB when the eNB detects that the service of the terminal in the E-UTRAN is a packet service, the eNB sends a handover request message to the MME, so that the MME performs the cross-RAT handover, and the terminal that performs the service and the packet service is The E-UTRAN switches to UTRAN. In this way, after switching to the UTRAN, the terminal performs packet service in the UTRAN, which can reduce the filling of the data packet, thereby improving the transmission efficiency.
  • FIG. 1 is a schematic diagram of a system in accordance with an embodiment of the present invention.
  • FIG. 2 is a flow chart of a method for handover in accordance with an embodiment of the present invention.
  • 3 is a flow chart of a method for handover in accordance with another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a flow for handover according to another embodiment of the present invention.
  • FIG. 5 is a block diagram of an evolved base station in accordance with one embodiment of the present invention.
  • FIG. 6 is a block diagram of a mobility management entity in accordance with one embodiment of the present invention.
  • FIG. 7 is a block diagram of an evolved base station in accordance with another embodiment of the present invention.
  • FIG. 8 is a block diagram of a mobility management entity in accordance with another embodiment of the present invention. detailed description
  • LTE is a long-term evolution of the Universal Mobile Telecommunications System (UMTS) technology standard developed by the 3rd Generation Partnership Project (3GPP), namely the Universal Terrestrial Access Network (Universal Terrestrial).
  • 3GPP 3rd Generation Partnership Project
  • UTRAN Universal Terrestrial Access Network
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • the terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a mobile terminal, a wireless communication device, a user agent, User equipment or User Equipment (UE).
  • the terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and a wireless communication function.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • FIG. 1 is a schematic diagram of a system in accordance with an embodiment of the present invention.
  • the terminal 101 accesses the E-UTRAN 102, and the base station 103 of the E-UTRAN 102 is an evolved base station (evolved NodeB, e-NB or eNB).
  • the Mobility Management Entity (MME) 104 the Serving Gateway (S-GW) 105, the Packet Data Network Gateway (P-GW) 106, and the carrier's network protocol (Internet Protocol) , IP) Service 108 communicates.
  • the interface between the Policy Control and Charging Rules Function (PCRF) 107 and the IP service 108 of the operator is an Rx interface.
  • PCRF Policy Control and Charging Rules Function
  • the interface between the PCRF 107 and the P-GW 106 is a Gx interface.
  • the interface between the operator's IP service 108 and the P-GW 106 is the SGi interface.
  • the interface between the P-GW 106 and the S-GW 105 is an S5/S8 interface.
  • the interface between the S-GW 105 and the MME 104 is an S11 interface.
  • the interface between the MME 104 and the base station 103 is an S1 interface.
  • the interface between the terminal 101 and the E-UTRAN 102 is an LTE-Uu interface.
  • FIG. 2 is a flow chart of a method for handover in accordance with an embodiment of the present invention.
  • the method shown in Figure 2 includes:
  • the eNB When detecting that the service of the terminal in the E-UTRAN is a packet service, the eNB generates a handover request message.
  • the eNB sends the handover request message to the MME.
  • the handover request message includes the identifier information of the terminal and the identifier information of the packet service, where the handover request message is used to request the MME to perform a radio access technology (RAT) handover, so that the terminal Switch from E-UTRAN to UTRAN for packet service.
  • RAT radio access technology
  • the eNB when the eNB detects that the service of the terminal in the E-UTRAN is a packet service, the eNB sends a handover request message to the MME, so that the inter-RAT handover is performed by the MME, and the terminal that performs the packet service is from the E-UTRAN. Switch to UTRAN. In this way, after switching to the UTRAN, the terminal performs packet service in the UTRAN, which can reduce the filling of the data packet, thereby improving the transmission efficiency.
  • the eNB is a base station in the E-UTRAN.
  • the terminal initiates a Non Access Stratum (NAS) service request procedure to the MME.
  • NAS Non Access Stratum
  • the eNB may determine, by using packet detection, that the service of the terminal is a packet service. For example, the eNB performs statistics on the characteristics of the service sent and received by the terminal. When the service feature of the terminal matches the characteristics of the packet service, the e B determines that the terminal is performing the packet service.
  • the method shown in FIG. 2 may further include: receiving, by the eNB, a handover command message sent by the MME, and the eNB sending a handover command to the terminal, so that the terminal switches to the UTRAN.
  • the handover command message includes a forward access channel (Forward Access CHannel,
  • FACH Radio Network Controller
  • the packet service of the Access Stratu (AS) layer is transmitted between the terminal and the base station (NodeB, NB) in the UTRAN.
  • the packet service of the Non-Access Stratu (NAS) layer is transparently transmitted by the NB (or NB and RNC), and is served by the Serving GPRS (General Packet Radio Service Support Node, SGSN). Transfer between.
  • GPRS General Packet Radio Service Support Node
  • FIG. 3 is a flow chart of a method for handover in accordance with another embodiment of the present invention.
  • the method shown in Figure 3 includes:
  • the MME receives a handover request message sent by the e B, where the handover request message is sent by the eNB when detecting that the service of the terminal in the E-UTRAN is a packet service, where the handover request message includes the The identification information of the terminal and the identification information of the packet service, where the handover request message is used to request the MME to perform an inter-RAT handover, so that the terminal switches from the E-UTRAN to the UTRAN for packet service.
  • the MME performs cross-RAT handover according to the handover request message, so that the terminal switches from the E-UTRAN to the UTRAN to perform packet service.
  • the MME receives the handover request message sent by the eNB, and performs cross-RAT handover, so that the terminal switches from the E-UTRAN to the UTRAN to perform packet service. In this way, after switching to UTRAN, the terminal performs packet service in the UTRAN, which can reduce the filling of the data packet, thereby improving the transmission efficiency.
  • the MME sends a Forward Relocation Request message to the SGSN to map the default EPS bearer context to a Universal Mobile Telecommunications System (UMTS) Power Delay Profile (PDP) context.
  • UMTS Universal Mobile Telecommunications System
  • PDP Power Delay Profile
  • the MME receives the forwarding relocation response message sent by the SGSN.
  • the default EPS bearer context is mapped to the UMTS PDP context, which can simplify the context negotiation interaction process of the terminal in the UTRAN. That is to say, the NAS signaling overhead of the frequent PDP context negotiation process carried on the UMTS system can be avoided.
  • the method may further include: the MME sending a handover command message to the eNB.
  • the handover command message may include the description information of the FACH.
  • the eNB may forward the description information of the FACH to the terminal by using a handover command, so that the terminal completes the handover according to the description information of the FACH.
  • the FACH is allocated by the RNC.
  • the eNB when detecting that the service of the terminal in the E-UTRAN is a packet service, the eNB sends a handover request message to the MME, so as to perform cross-RAT handover by the MME, so as to facilitate the terminal from the E- The UTRAN switches to UTRAN.
  • the terminal can be bundled and sent by the UMTS FACH bearer, so that the medium access control (MAC) layer protocol data unit (Protocol Data Unit, The filling of PDUs is wasteful, which in turn improves transmission efficiency.
  • MAC medium access control
  • FIG. 4 is a schematic diagram of a flow for handover according to another embodiment of the present invention.
  • 401 to 414 are processes in which the terminal 101 initiates a NAS service request to the MME 104. specifically,
  • the terminal 101 determines a NAS service request.
  • the terminal 101 sends a radio resource control to the eNB 103.
  • the eNB 103 performs an RRC connection setup.
  • the terminal 101 sends an RRC Connection Setup Complete message to the eNB 103.
  • the RRC connection setup complete message includes a NAS service request.
  • the eNB 103 sends an initial terminal message to the MME 104.
  • the initial terminal message includes a NAS service request.
  • the eNB 103 transparently transmits the NAS service request received in 404 to the MME 104. In this way, the process of NAS authentication can be further performed.
  • the MME 104 sends an initial context setup request message to the eNB 103.
  • the initial context setup request message is an S1 application protocol (SI Application).
  • the initial context setup request message includes address information of the S-GW 105 and Quality of Service (QoS).
  • QoS Quality of Service
  • AS activation is performed between the eNB 103 and the terminal 101.
  • the eNB 103 sends an RRC connection reconfiguration message to the terminal 101.
  • the terminal 101 sends an RRC Connection Reconfiguration Complete message to the eNB 103.
  • 407 to 409 are processes of radio bearer establishment.
  • the establishment of the user plane radio bearer means the completion of the service request, and the synchronization of the EPS bearer between the terminal 101 and the network.
  • the eNB 103 sends an initial context setup complete message to the MME 104.
  • the initial context setup complete message is an S1AP initial context setup complete message.
  • the initial context setup complete message includes address information of the eNB 103.
  • the MME 104 sends a first update bearer request message to the S-GW 105.
  • the first update bearer request message includes address information of the eNB 103, and a RAT type.
  • the S-GW 105 sends a second update bearer request message to the P-GW 106.
  • the S-GW 105 when the S-GW 105 detects that there is a change in the RAT type of the first update bearer request message received by the 411, the S-GW 105 sends a second update bearer request message to the P-GW 106, where the second update bearer The request message includes the RAT type.
  • the P-GW 106 sends a second update bearer response message to the S-GW 105.
  • the S-GW 105 sends a second update bearer response message to the MME 104.
  • uplink and downlink user data is transmitted between the eNB 103 and the S-GW 105/P-GW 106 via a GPRS Tunneling Protocol (GTP) tunnel.
  • GTP GPRS Tunneling Protocol
  • the eNB 103 When the eNB 103 detects that the service of the terminal 101 in the E-UTRAN is a packet service, the eNB 103 generates a handover request message.
  • step 416 can be referred to the foregoing step 201 in FIG. 2. To avoid repetition, details are not described herein again.
  • the handover request message includes the identification information of the terminal and the information that the terminal performs the packet service.
  • the eNB 103 sends a handover request message to the MME 104.
  • step 416 can be referred to the foregoing step 202 in FIG. 2. To avoid repetition, details are not described herein again.
  • the MME 104 initiates an relocation process of the handover resource. specifically,
  • the MME 104 sends a Forward Relocation Request message to the SGSN 112.
  • the forwarding relocation request message includes an EPS bearer context list.
  • the default EPS bearer context can be mapped to a PDP context.
  • the forwarding relocation request message includes identification information of the terminal and identification information of the packet service.
  • the SGSN 112 sends a Generate Bearer Request message to the S-GW 105, and receives a Generate Bearer Response message sent by the S-GW 105. It should be noted that this step 419 is not necessary and is indicated by a broken line in FIG. Specifically, 419 is performed when the SGSN 112 determines that the S-GW needs to be relocated.
  • the SGSN 112 sends a relocation request message to the RNC 111, and receives a relocation request acknowledgement message sent by the RNC 111.
  • the relocation request message includes identification information of the terminal and identification information of the packet service.
  • the relocation request message is used to request the RNC 111 to establish a wireless network resource.
  • the RNC 111 allocates a Forward Access Channel (FACH) for the terminal performing the packet service.
  • FACH Forward Access Channel
  • the RNC 111 performs resource relocation after receiving the relocation request message.
  • the relocation request acknowledgement message includes description information of the FACH.
  • the SGSN 112 sends a Forward Relocation Response message to the MME 104.
  • the transmission of the Forward Relocation Response message may be understood to be that the SGSN 112 forwards the Relocation Request Acknowledgement message received from the RNC 111 in 420 to the MME 104.
  • the forwarding relocation response message includes description information of the FACH.
  • the MME 104 sends a handover command message to the eNB 103.
  • the forwarding relocation response message includes description information of the FACH.
  • the eNB 103 sends a handover command to the terminal 101.
  • the forwarding relocation response message includes description information of the FACH.
  • the terminal 101 accesses an access process of the UTRAN.
  • the terminal 101 accesses the UTRAN according to the description information of the FACH.
  • the process can be referred to the standard 3GPP TS 25.331. To avoid repetition, details are not described herein.
  • the terminal 101 sends a handover complete message to the RNC 111.
  • a handover complete message is sent to the RNC 111.
  • the RNC 111 forwards the handover complete message to the eNB 103.
  • the eNB 103 upon receiving the handover complete message, may release the uplink/downlink transmission resources (not shown in FIG. 4) for the terminal transmission.
  • the inter-RAT handover of the terminal 101 performing the packet service from the E-UTRAN to the UTRAN is realized.
  • the base station of the UTRAN can use the FACH channel to bundle and transmit data packets of multiple IM users, thereby reducing the air interface side.
  • the filling of the data packet can alleviate the pressure of the IM data blowout, and can also effectively improve the utilization of network resources.
  • the eNB when detecting that the service of the terminal in the E-UTRAN is a packet service, the eNB sends a handover request message to the MME, so as to perform cross-RAT handover by the MME, so as to facilitate the terminal from the E- The UTRAN switches to UTRAN.
  • the FACH bearer can be used for transmission.
  • UTRAN bundles and transmits data packets of multiple users, which can reduce the filling waste of MAC layer PDUs, thereby improving transmission efficiency.
  • FIG. 5 is a block diagram of an evolved base station in accordance with one embodiment of the present invention.
  • the evolved base station eNB 500 shown in FIG. 5 includes a generating unit 501 and a transmitting unit 502.
  • the generating unit 501 is configured to generate a handover request message when detecting that the service of the terminal in the evolved universal terrestrial radio access network E-UTRAN is a packet service.
  • the sending unit 502 is configured to send the handover request message generated by the generating unit 501 to the mobility management entity MME, where the handover request message includes the identifier information of the terminal and the identifier information of the packet service, where the handover request message is used.
  • the MME is requested to perform a cross-radio access technology RAT handover such that the terminal switches from the E-UTRAN to the universal terrestrial radio access network UTRAN for packet service.
  • the eNB when the eNB detects that the service of the terminal in the E-UTRAN is a packet service, the eNB sends a handover request message to the MME, so that the MME performs the inter-RAT handover, and the terminal that performs the packet service is from the E. - UTRAN switches to UTRAN. In this way, after switching to UTRAN, the terminal performs packet service in the UTRAN, which can reduce the filling of the data packet, thereby improving the transmission efficiency.
  • the eNB 500 further includes a receiving unit, configured to receive a handover command message sent by the MME. Further, the sending unit 502 is further configured to send a handover command to the terminal, so that the terminal switches to the UTRAN.
  • the eNB 500 shown in FIG. 5 can implement the processes implemented by the eNB in FIG. 2 and FIG. 4, and details are not described herein again to avoid repetition.
  • the mobility management entity MME 600 shown in FIG. 6 includes: a receiving unit 601 and an executing unit 602.
  • the receiving unit 601 is configured to receive a handover request message sent by the evolved base station eNB, where the handover request message is that the eNB detects that the service of the terminal in the evolved universal terrestrial radio access network E-UTRAN is a packet
  • the handover request message includes the identifier information of the terminal and the identifier information of the packet service, where the handover request message is used to request the
  • the MME performs a cross-radio access technology RAT handover such that the terminal switches from the E-UTRAN to the universal terrestrial radio access network UTRAN for packet service.
  • the executing unit 602 is configured to perform cross-RAT handover according to the handover request message received by the receiving unit 601, so that the terminal switches from the E-UTRAN to the UTRAN to perform packet service.
  • the MME receives the handover request message sent by the e B, and performs the cross
  • the RAT switches to cause the terminal to handover from the E-UTRAN to the UTRAN for packet service. In this way, after switching to the UTRAN, the terminal performs packet service in the UTRAN, which can reduce the filling of the data packet, thereby improving the transmission efficiency.
  • the processing unit 602 can include a transmitting subunit and a receiving subunit.
  • the sending subunit is configured to send a forwarding relocation request message to the serving general packet radio service support node SGSN to map the default evolved packet system EPS bearer context to the universal mobile communication system UMTS power delay spectrum PDP context.
  • the receiving subunit is configured to receive a forwarding relocation response message sent by the SGSN.
  • the MME 600 may further include a sending unit, configured to send a handover command message to the eNB.
  • the MME 600 shown in FIG. 6 can implement the processes implemented by the MME in FIG. 3 and FIG. 4, and details are not described herein again to avoid repetition.
  • the evolved base station eNB 700 shown in FIG. 7 includes a processor 701, a memory 702, and a transceiver 703.
  • the processor 701 is configured to generate a handover request message when detecting that the service of the terminal in the evolved universal terrestrial radio access network E-UTRAN is a packet service.
  • the transceiver 703 is configured to send the handover request message generated by the processor 701 to the mobility management entity MME, where the handover request message includes identifier information of the terminal and identifier information of a packet service, where the handover request message is used.
  • the MME is requested to perform a cross-radio access technology RAT handover such that the terminal switches from the E-UTRAN to the universal terrestrial radio access network UTRAN for packet service.
  • the eNB when the eNB detects that the service of the terminal in the E-UTRAN is a packet service, the eNB sends a handover request message to the MME, so that the MME performs the inter-RAT handover, and the terminal that performs the packet service is from the E. - UTRAN switches to UTRAN. In this way, after switching to UTRAN, the terminal performs packet service in the UTRAN, which can reduce the filling of the data packet, thereby improving the transmission efficiency.
  • bus system 705 In addition to the data bus, it also includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 705 in FIG.
  • Processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software.
  • the processor 701 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read only memory or an electrically erasable programmable memory, a register, and the like. in.
  • the storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and combines the hardware to perform the steps of the above method.
  • the transceiver 703 is further configured to receive a handover command message sent by the MME. Further, it is further configured to send a handover command to the terminal, so that the terminal switches to the UTRAN.
  • the eNB 700 shown in FIG. 7 can implement the processes implemented by e B in FIG. 2 and FIG. 4, and details are not described herein again to avoid repetition.
  • FIG. 8 is a block diagram of a mobility management entity in accordance with one embodiment of the present invention.
  • the mobility management entity MME 800 shown in FIG. 8 includes: a processor 801, a memory 802, and a transceiver 803.
  • the transceiver 803 is configured to receive a handover request message sent by the evolved base station eNB, where the handover request message is that the eNB detects that the service of the terminal in the evolved universal terrestrial radio access network E-UTRAN is a packet
  • the handover request message includes the identifier information of the terminal and the identifier information of the packet service, where the handover request message is used to request the MME to perform a cross-radio access technology RAT handover, so that the terminal The E-UTRAN switches to the universal terrestrial radio access network UTRAN for packet service.
  • the processor 801 is configured to perform cross-RAT handover according to the handover request message received by the transceiver 803, so that the terminal The E-UTRAN switches to the UTRAN for packet service.
  • the MME receives the handover request message sent by the e B, and performs cross-RAT handover, so that the terminal switches from the E-UTRAN to the UTRAN to perform packet service.
  • the terminal after switching to the UTRAN, the terminal performs packet service in the UTRAN, which can reduce the filling of the data packet, thereby improving the transmission efficiency.
  • bus system 805 which in addition to the data bus includes a power bus, a control bus, and a status signal bus.
  • bus system 805 various buses are labeled as bus system 805 in FIG.
  • Processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 801 or an instruction in the form of software.
  • the processor 801 described above can be a general purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete block diagram.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium such as RAM, flash memory, ROM, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in memory 802, and processor 801 reads the information in memory 802 and, in conjunction with its hardware, performs the steps of the above method.
  • the processor 801 may be specifically configured to: send a forwarding relocation request message to the serving general packet radio service support node SGSN to map the default evolved packet system EPS bearer context to the universal mobile communication system UMTS power. Delayed PDP context. And receiving a forwarding relocation response message sent by the SGSN.
  • the transceiver 803 is further configured to send a handover command message to the eNB.
  • the MME 800 shown in FIG. 8 can implement the processes implemented by the MME in FIG. 3 and FIG. 4, and details are not described herein again to avoid repetition.
  • 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 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 electrical, mechanical or otherwise.
  • the components displayed for the unit may or may not be physical units, ie 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 objectives 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, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product 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 medium such as a USB flash drive, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk that can store program codes.

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

Abstract

Des modes de réalisation de la présente invention concernent un procédé de transfert intercellulaire. Le procédé comprend les étapes suivantes : lorsqu'il est détecté que le service d'un terminal dans le réseau terrestre universel évolué d'accès radio (E-UTRAN) est un service de petits paquets, un nœud B évolué (eNB) génère un message de demande de transfert intercellulaire; le nœud eNB envoie le message de demande de transfert intercellulaire à une entité de gestion de mobilité (MME), le message de demande de transfert intercellulaire comportant les informations d'identification du terminal et les informations d'identification du service de petits paquets, et le message de demande de transfert intercellulaire étant utilisé pour demander à l'entité MME d'effectuer au moyen d'une technologie d'accès radio (RAT) un transfert intercellulaire de telle sorte que le terminal passe du réseau E-UTRAN au réseau UTRAN pour exécuter le service de petits paquets. De cette manière, lorsque le nœud eNB détecte que le service du terminal dans le réseau E-UTRAN est le service de petits paquets, le nœud eNB envoie le message de demande de transfert intercellulaire à l'entité MME de telle sorte que l'entité MME effectue au moyen de la technologie RAT un transfert intercellulaire et fait passer le terminal exécutant le service de petits paquets du réseau E-UTRAN au réseau UTRAN. De cette manière, après le passage au réseau UTRAN, le terminal exécute le service de petits paquets dans le réseau UTRAN de sorte à réduire le remplissage de paquets de données et à améliorer l'efficacité de transmission.
PCT/CN2014/079575 2014-06-10 2014-06-10 Procédé de transfert intercellulaire, station de base évoluée et entité de gestion de mobilité WO2016000097A1 (fr)

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