WO2016000143A1 - 一种下行电路交换回落csfb的寻呼处理方法和设备 - Google Patents

一种下行电路交换回落csfb的寻呼处理方法和设备 Download PDF

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Publication number
WO2016000143A1
WO2016000143A1 PCT/CN2014/081202 CN2014081202W WO2016000143A1 WO 2016000143 A1 WO2016000143 A1 WO 2016000143A1 CN 2014081202 W CN2014081202 W CN 2014081202W WO 2016000143 A1 WO2016000143 A1 WO 2016000143A1
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Prior art keywords
msc
global
vlr
paging
imsi
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PCT/CN2014/081202
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English (en)
French (fr)
Inventor
舒林
李章原
陈璟
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201480036832.7A priority Critical patent/CN105393614B/zh
Priority to PCT/CN2014/081202 priority patent/WO2016000143A1/zh
Publication of WO2016000143A1 publication Critical patent/WO2016000143A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a paging circuit processing method and device for a Circuit Switched Fallback (CSFB). Background technique
  • Evolved Packet System is the 3rd Generation Partnership Project (3GPP) in the second generation (The Second Generation, 2G) mobile communication network (ie GSM/EDGE: Global) System of Mobile Communication/Enhanced Data Rate for GSM Evolution, Global System for Mobile Communications/Enhanced Data Rate GSM Evolution; GSM: Global System for Mobile, Global Mobile Communications, and The Third Generation (3G) Mobile Communications
  • the network ie UMTS: Universal Mobile Telecommunications System, Universal Mobile Telecommunications System
  • the EPS network includes an Evolved Universal Mobile Telecommunication System Territorial Radio Access Network (E-UTRAN) and an Evolved Packet Core Network (EPC).
  • E-UTRAN Evolved Universal Mobile Telecommunication System
  • EPC Evolved Packet Core Network
  • the EPS network can only provide packets. Packet Switched (PS) service.
  • PS Packet Switched
  • CSFB Circuit Switching Back
  • SMS over SGs Short Message Service over SGs
  • CSFB technology enables user equipment (User Equipment, UE for short) under E-UTRAN coverage.
  • CS Circuit Switched
  • the E-UTRAN is dropped back to the CS domain of the 2G/3G network to complete the service processing.
  • CS Circuit Switched
  • the SMS over SGs technology allows the UEs residing under the E-UTRAN to reuse the existing CS. Domain to implement CS short message Transmission.
  • UEs residing in E-UTRAN and supporting CSFB and/or SMS over SGs need to initiate a joint registration procedure to achieve simultaneous registration to the EPC network PS domain and the 2G/3G network CS domain. After successful joint registration, the CSFB service of the uplink and downlink and the short message service of the uplink and downlink can be initiated normally.
  • the MSC resource pool (MSC Pool)
  • MSC Pool for the downlink CS service of the idle UE
  • the paging initiated by the MSC/VLR served by the UE can be performed normally.
  • the UE camps on the E-UTRAN there is a problem with paging initiated by the MSC/VLR serving the UE.
  • the embodiment of the present invention provides a paging processing method and device for a downlink CSFB, so that after the UE falls back to the CS domain of the 2G/3G network, the 2G/3G base station cannot send the paging response sent by the received UE.
  • the paging processing method of the downlink CSFB on the MME side includes: the MME receives the paging request message sent by the MSC/VLR, where the paging request message includes the IMSI of the UE and the Global CN ID of the MSC/VLR, where the MSC/VLR is located in the MSC resource pool;
  • the target 2G/3G base station Sending, by the UE or the eNodeB, the IMSI and the global CN ID to the target 2G/3G base station, so that after the UE falls back to the target 2G/3G base station, the target 2G/3G base station Determining the MSC/VLR for the UE according to the global CN ID.
  • the sending, by the MME, the IMSI and the global CN ID to the target 2G/3G base station by using the UE includes:
  • the paging message further includes the IMSI; or
  • the CS service notification message further includes a paging identity (Paging Identity) cell, and the value of the paging identity cell is used to indicate that the paging response is performed using the IMSI.
  • Paging Identity paging identity
  • the method further includes:
  • the MME sends a packet switched PS domain paging message to the UE by using the S-TMSI of the UE, so that the UE enters a connected state, where the CN field in the PS domain paging message is PS.
  • the sending, by the MME, the IMSI and the global CN ID to the target 2G/3G base station by using the eNodeB including:
  • the notification message is: a paging message or a downlink transmission message.
  • a paging processing method for a downlink CSFB of a UE side is provided by the embodiment of the present invention, and the method includes:
  • the UE receives the global CN ID of the MSC/VLR sent by the MME, where the MSC/VLR is located in the MSC resource pool;
  • the UE sends the IMSI of the UE and the global CN ID to a target 2G/3G base station, so that the target 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID. .
  • the receiving, by the UE, the global CN ID of the MSC/VLR sent by the MME includes:
  • the UE receives a request message that is sent by the MME and includes the global CN ID, where the request message is: a paging message or a CS service notification message.
  • the paging message further includes the IMSI; or
  • the CS service notification message further includes a paging identification cell, and the value of the paging identification cell is used to indicate that the paging response is performed using the IMSI.
  • the method further includes:
  • the UE After receiving the PS domain paging message sent by the S-TMSI of the UE, the UE enters a connection state from an idle state, where the CN domain in the PS domain paging message is PS.
  • the sending, by the UE, the IMSI and the global CN ID to the target 2G/3G base station includes:
  • paging response including the IMSI and the global CN ID to the target 2G/3G base station, where the paging response is a response message to a request message sent by the MME.
  • the method further includes: the UE buffering a global CN ID of the MSC/VLR;
  • the method further includes: deleting, by the UE, the global CN ID of the cached MSC/VLR.
  • a paging processing method for the downlink CSFB on the eNodeB side is provided by the embodiment of the present invention, where the method includes:
  • the eNodeB receives the IMSI of the UE and the global CN ID of the MSC/VLR, where the MSC/VLR is located in the MSC resource pool;
  • the eNodeB sends the IMSI and the global CN ID to a target 2G/3G base station, so that after the UE falls back to the target 2G/3G base station, the target 2G/3G base station is configured according to The global CN ID determines the MSC/VLR for the UE.
  • the receiving, by the eNodeB, the IMSI and the global CN ID sent by the MME include:
  • the eNodeB receives a notification message that is sent by the MME, including the IMSI and the global CN ID, and the notification message is: a paging message or a downlink transmission message.
  • the sending, by the eNodeB, the IMSI and the global CN ID to the target 2G/3G base station includes:
  • the eNodeB transmits the IMSI and the global CN ID to the target 2G/3G base station in a packet switched PS handover procedure or a redirection procedure.
  • a paging processing method for a downlink CSFB on a 2G/3G base station side is provided by the embodiment of the present invention, where the method includes:
  • the 2G/3G base station receives the IMSI of the UE and the global CN ID of the MSC/VLR from the UE, the eNodeB, or the MSC/VLR, where the MSC/VLR is located in the MSC resource pool;
  • the 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID.
  • the 2G/3G base station receives the IMSI of the UE and the global CN ID of the MSC/VLR from the UE, the eNodeB, or the MSC/VLR, including:
  • the 2G/3G base station receives a paging response sent by the UE, the paging response includes the IMSI and the global CN ID, and the paging response is a response message to a request message sent by the mobility management entity MME.
  • the request message includes the global CN ID; or
  • the IMSI and the global CN ID are downlink circuit switched CSs received by the MSC/VLR for the UE Sent after the business request.
  • the method further includes:
  • the target 2G/3G base station transmits a paging response of the UE to the MSC/VLR.
  • An MME is provided by the embodiment of the present invention, where the MME includes:
  • a receiving unit configured to receive a paging request message sent by the MSC/VLR, where the paging request message includes an IMSI of the UE and a global CN ID of the MSC/VLR, where the MSC/VLR is located in the MSC resource pool Medium
  • a sending unit configured to send, by using the UE or the eNodeB, the IMSI and the global CN ID to a target 2G/3G base station, so that after the UE falls back to the target 2G/3G base station, the target 2G/ The 3G base station determines the MSC/VLR for the UE according to the global CN ID.
  • the sending unit sends the IMSI and the global CN ID to the target 2G/3G base station by using the UE, including:
  • the 3G base station, where the request message is: a paging message or a CS service notification message.
  • the paging message further includes the IMSI; or
  • the CS service notification message further includes a paging identifier Paging identity cell, and the value of the paging identifier cell is used to indicate that the paging response is performed using the IMSI.
  • the sending unit is further configured to:
  • the sending unit sends the IMSI and the global CN ID to the target 2G/3G base station by using the eNodeB, including:
  • the message is: a paging message or a downlink transmission message.
  • a receiving unit configured to receive a global CN ID of the MSC/VLR sent by the MME, where the MSC/VLR is located in the MSC resource pool;
  • a sending unit configured to send, in a downlink CSFB process, an IMSI of the UE and the global CN ID to a target 2G/3G base station, so that the target 2G/3G base station determines, according to the global CN ID, the UE MSC/VLR.
  • the receiving unit is specifically configured to:
  • a request message that includes the global CN ID, where the request message is: a paging message or a CS service notification message.
  • the paging message further includes the IMSI; or
  • the cs service notification message further includes a paging identification cell, and the value of the paging identification cell is used to indicate that the paging response is performed using the IMSI.
  • the receiving unit is further configured to:
  • the MME After receiving the packet switched PS domain paging message sent by the S-TMSI of the UE, the MME enters a connected state from an idle state, where the CN field in the PS domain paging message is PS.
  • the sending unit is specifically configured to:
  • paging response including the IMSI and the global CN ID, where the paging response is a response message to a request message sent by the MME.
  • the UE further includes:
  • a processing unit configured to: after the receiving unit receives the request message sent by the MME, buffer a global CN ID of the MSC/VLR; and after the sending unit sends a paging response to the target 2G/3G base station, The cached global CN ID of the MSC/VLR is deleted.
  • An eNodeB is provided in the embodiment of the present invention, where the eNodeB includes:
  • a receiving unit configured to receive an IMSI of the UE sent by the MME and a global core network identifier CN ID of the MSC/VLR, where the MSC/VLR is located in the MSC resource pool;
  • a sending unit configured to send the IMSI and the global CN ID to a target 2G/3G base station in a CSFB process, so that after the UE falls back to the target 2G/3G base station, the target 2G/3G
  • the base station determines the MSC/VLR for the UE according to the global CN ID.
  • the receiving unit is specifically configured to:
  • a notification message that includes the IMSI and the global CN ID, where the notification message is: a paging message or a downlink transmission message.
  • the sending unit is specifically configured to:
  • the IMSI and the global CN ID are transmitted to the target 2G/3G base station during a packet switched PS handover procedure or redirection procedure.
  • a receiving unit configured to receive an IMSI of the UE from a UE, an eNodeB, or an MSC/VLR a global CN ID of the MSC/VLR, where the MSC/VLR is located in an MSC resource pool
  • a processing unit configured to: in the CSFB process, when the 2G/3G base station falls back to the target 2G/3G of the UE The base station determines the MSC/VLR for the UE according to the global CN ID.
  • the receiving unit is specifically configured to:
  • the paging response includes the IMSI and the global CN ID
  • the paging response is a response message to a request message sent by the MME, and the request message includes the global CN ID;
  • the MSC/VLR Receiving, by the MSC/VLR, the IMSI and the global CN ID, where the IMSI and the global CN ID are sent by the MSC/VLR after receiving a downlink circuit switched CS service request for the UE.
  • the 2G/3G base station further includes:
  • a sending unit configured to send, in the CSFB process, a paging response of the UE to the MSC/VLR.
  • the MME after receiving the paging request message sent by the MSC/VLR, the MME sends the IMSI of the UE and the global CN of the MSC/VLR to the target 2G/3G base station through the UE or the eNodeB. After the ID is returned to the target 2G/3G base station, the target 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID. The MME sends the IMSI of the UE and the global CN ID of the MSC/VLR that initiates the paging to the target 2G/3G base station, so that the target 2G/3G base station can receive the paging response sent by the UE according to the global CN.
  • the ID determines the MSC/VLR (the MSC/VLR that initiated the paging) for the UE, and sends a paging response to the determined MSC/VLR, thereby ensuring that the target 2G/3G base station can route the paging response sent by the UE to the originating
  • the paging MSC/VLR avoids the failure of the downlink CS service.
  • FIG. 1 is a flowchart of a paging processing method for downlink circuit switched fallback CSFB on the MME side according to the present invention
  • FIG. 2 is a flowchart of a paging processing method for a downlink circuit switched back CSFB of a UE side according to the present invention
  • FIG. 3 is a flowchart of a paging processing method for a downlink circuit switched fallback CSFB on an eNodeB side according to the present invention
  • FIG. 4 is a flowchart of a paging processing method for downlink circuit switched back CSFB of a 2G/3G base station side according to the present invention
  • FIG. 5 is a flowchart of Embodiment 1 of the present invention.
  • FIG. 6 is a flowchart of Embodiment 2 of the present invention.
  • FIG. 7 is a flowchart of Embodiment 3 of the present invention.
  • FIG. 8 is a schematic structural diagram of an MME provided by the present invention.
  • FIG. 9 is a schematic structural diagram of a UE provided by the present invention.
  • FIG. 10 is a schematic structural diagram of an eNodeB according to the present invention.
  • FIG. 11 is a schematic structural diagram of a 2G/3G base station provided by the present invention. detailed description
  • the user equipment UE may be any one of the following, and the UE may be static or mobile.
  • the UE may include, but is not limited to: a station, a mobile station, a subscriber unit, a personal computer, a laptop computer, a tablet computer, and a tablet. Computer ), Netbook, UE (Cellular Phone), Cellular Phone, Handheld, Cordless Phone, Personal Digital Assistant (PDA), Data Card (Data Card) ), USB plug-in devices, mobile WiFi hotspot devices (MiFi Devices), smart watches, smart glasses, wireless modems (Modem), wireless routers, Wireless Local Loop (WLL) stations, etc.
  • the above UEs may be distributed throughout the wireless network.
  • the mobile switching center MSC and the visited location register VLR are usually combined to be the same network element, called MSC/VLR, or simply VLR. It should be noted that, in the embodiment of the present invention, the MSC/VLR that initiates paging is the MSC/VLR currently serving the UE, that is, the MSC/VLR currently registered by the UE.
  • the evolved Node B eNodeB is a base station that provides an E-UTRAN access service for the UE.
  • the second/third generation 2G/3G base station can be a Base Station Subsystem (BSS) in a 2G network, or a Radio Network Subsystem (RNS) in a 3G network.
  • BSS Base Station Subsystem
  • RNS Radio Network Subsystem
  • the inventor has found that in the scenario where the MSC Pool is deployed, since multiple MSCs/VLRs can provide services for the UE in the same location area, if the MSC/VLR directly uses the IMSI in the 2G/3G network to initiate the search to the UE.
  • the 2G/3G base station can record the MSC/VLR information of the paging initiated, so that the paging response can be routed when receiving the paging response sent by the UE using the IMSI.
  • the MSC/VLR that initiates paging in the MSC Pool ensures the smooth running of the downlink CS service.
  • the MSC/VLR uses the IMSI for paging from the SGs interface, the paging is sent to the MME instead of to the 2G/3G base station, so the information of the MSC/VLR that initiated the paging cannot be recorded on the 2G/3G base station, and the MME The information of the MSC/VLR that initiates the paging may be recorded, but currently the MME does not send the information of the MSC/VLR to the UE, nor does it transmit to the eNodeB in the E-UTRAN, and thus cannot send the information of the MSC/VLR.
  • a paging processing method for the downlink circuit switched back-off CSFB on the MME side is provided in the embodiment of the present invention. The method is applied to the MSC resource pool (MSC Pool) scenario, that is, at least two MSC/VLRs in the MSC Pool may be The UE service in the same location area (Location Area), as shown in FIG. 1, the method includes:
  • the MME receives a paging request message sent by the MSC/VLR, where the paging request message includes an IMSI of the UE and a Core Network Identifier (CN ID) of the MSC/VLR, and the MSC/VLR Located in the MSC Pool.
  • the paging request message includes an IMSI of the UE and a Core Network Identifier (CN ID) of the MSC/VLR, and the MSC/VLR Located in the MSC Pool.
  • CN ID Core Network Identifier
  • the paging request message is used to instruct the MME to request the UE to initiate the CSFB procedure to fall back to the target 2G/3G base station in the CS domain network.
  • the MME sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station by using the UE or the eNodeB, so that after the UE falls back to the target 2G/3G base station, the target 2G/3G base station according to the
  • the global CN ID determines the MSC/VLR (ie, the MSC/VLR that initiated the paging) for the UE.
  • the target 2G/3G base station can learn the global CN ID of the MSC/VLR that initiates paging, so the target 2G/3G base station can use the global CN ID as the The UE determines the MSC/VLR (ie, the MSC/VLR that initiated the paging).
  • the MME receives the paging request message sent by the MSC/VLR, where the paging request message includes the IMSI of the UE and the global CN ID of the MSC/VLR, where the MSC/VLR is located in the MSC Pool. And the MME sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station through the UE or the eNodeB, so that the target 2G/3G base station is based on the global after the UE falls back to the target 2G/3G base station.
  • the CN ID determines the MSC/VLR for the UE.
  • the MME sends the IMSI of the UE and the global CN ID of the MSC/VLR that initiated the paging to the target 2G/3G base station, so that the target 2G/3G base station receives the UE transmission.
  • the MSC/VLR (MSC/VLR that initiates the paging) may be determined for the UE according to the global CN ID, and the paging response is sent to the determined MSC/VLR, thereby ensuring that the target 2G/3G base station can
  • the paging response sent by the UE is routed to the MSC/VLR that initiates the paging, thereby avoiding the failure of the downlink CS service.
  • the global CN ID of the MSC/VLR is defined by the operator and is set by the operation and maintenance mode.
  • the global CN ID of the MSC/VLR includes the public land mobile network identifier (PLMN) of the operator. ID) With the CN ID of the MSC/VLR, the global CN ID of the MSC/VLR can uniquely identify an MSC/VLR in the operator PLMN.
  • PLMN public land mobile network identifier
  • the MSC/VLR carries its own global CN ID in the SGs paging message.
  • the MME sends the IMSI of the UE and the global CN ID of the MSC/VLR that initiates paging to the target 2G/3G base station by using the UE, including:
  • the MME sends a request message including the global CN ID for initiating the paging to the UE, so that the UE sends the IMSI of the UE and the global CN ID to the target 2G/3G base station after the UE falls back to the target 2G/3G base station, where
  • the request message sent by the MME to the UE is: a paging message or a CS service notification message.
  • the request message sent by the MME to the UE is described in detail below.
  • the request message sent by the MME to the UE is a paging message, where the paging message includes a paging message sent by the MME to the eNodeB serving the UE, and the eNodeB sends the message to the UE.
  • Paging message (such as air interface paging message).
  • the MME sends a paging message for paging the UE to the eNodeB, where the paging message includes the IMSI of the UE and the global CN ID of the MSC/VLR that initiates paging, so that the eNodeB passes the air interface for paging the UE.
  • the paging message transmits the IMSI of the UE and the global CN ID to the UE.
  • the core network (CN) field in the paging message sent by the MME to the eNodeB is set to "CS"; the CN field in the air interface paging message sent by the eNodeB to the UE is set to "CS".
  • the MME further includes: the MME sends a Packet Switch (PS) domain paging message to the UE by using the S-TMSI of the UE, so that the UE enters the connected state, where
  • the core network (CN) field in the PS domain paging message is PS.
  • the MME sends a paging message for paging the UE to the eNodeB by using the S-TMSI, where the CN field in the paging message is set to "PS”.
  • the eNodeB sends an air interface paging message for paging the UE to the UE by using the S-TMSI, where the CN field is set to "PS".
  • the UE after receiving the air interface paging message, the UE sends a service request (Service Request) message to the MME through the eNodeB, and the state of the UE changes from the idle state to the connected state.
  • Service Request Service Request
  • the request message sent by the MME to the UE is a CS service notification message
  • the CS service notification message includes a paging identity (Paging identity) in addition to the global CN ID of the MSC/VLR that initiates the paging.
  • the cell, the value of the paging identity cell is used to indicate that the IMSI is used for the paging response.
  • the MME sends the paging identifier cell and the global CN ID of the MSC/VLR that initiates the paging to the UE, so that the UE falls back to the target 2G/3G.
  • the IMSI of the UE and the global CN ID are sent to the target 2G/3G base station.
  • the MME first sends the UE in the idle state to the connected state, and then sends the paging identifier cell and the global CN ID of the MSC/VLR that initiates the paging to the UE, thereby avoiding increasing the length of the air interface paging message. Increase unnecessary paging delay and paging resource overhead.
  • the request message sent by the MME to the UE is a CS service notification message
  • the CS service notification message includes a paging identifier cell in addition to the global CN ID of the MSC/VLR that initiates the paging.
  • the value of the paging identification cell is used to indicate that the paging response is made using the IMSI.
  • the CS service notification message is sent to the UE by using an existing underlying signaling connection, where the CS service notification message includes a paging identifier cell and a global CN ID of the MSC/VLR that initiates the paging.
  • the MME sends the IMSI of the UE and the global CN ID of the MSC/VLR that initiates the paging to the UE.
  • the UE uses the existing process to fall back to the target 2G.
  • the target 2G/3G base station receives After the global CN ID of the MSC/VLR, the MSC/VLR (ie, the MSC/VLR that initiated the paging) is determined for the UE, and the UE is sent using the IMSI.
  • the call response is routed to the determined MSC/VLR.
  • the MME sends the IMSI of the UE and the global CN ID of the initiated paging to the target 2G/3G base station by using the eNodeB serving the UE, including:
  • the MME sends a notification message including the IMSI of the UE and the global CN ID of the paging to the eNodeB, so that the eNodeB sends the received IMSI and the global CN ID to the target 2G/3G base station, where the notification message is: Call the message or send the message downstream.
  • the notification message sent by the MME to the eNodeB serving the UE is described in detail below.
  • the notification message sent by the MME to the eNodeB is a paging message, and the paging message includes the IMSI of the UE and the global CN ID of the MSC/VLR that initiated the paging.
  • the CN field in the paging message sent by the MME to the eNodeB is set to "CS".
  • the eNodeB after receiving the paging message sent by the MME, the eNodeB sends an air interface paging message to the UE, where the air interface paging message includes the IMSI of the UE, and the CN field in the air interface paging message is set to "CS".
  • the process is the same as the prior art, and specifically refer to the 3GPP TS 23.272 protocol.
  • the eNodeB also needs to send the IMSI of the UE and the global CN ID of the MSC/VLR that initiated the paging to the target 2G/3G base station.
  • the notification message sent by the MME to the eNodeB is a downlink transmission message, and the downlink transmission message includes the IMSI of the UE and the global CN ID of the MSC/VLR that initiates the paging.
  • the downlink transmission message sent by the MME to the eNodeB is a Down Access NAS Transport message
  • the downlink NAS transport message includes a CS service notification message and a UE.
  • the eNodeB after receiving the downlink transmission message sent by the MME, the eNodeB sends the CS service notification message in the downlink transmission message to the UE, and sends the IMSI and the global CN ID in the downlink transmission message to the target 2G/3G. Base station.
  • the MME will globalize the IMSI of the UE and the MSC/VLR that initiates paging.
  • the CN ID is sent to the eNodeB that provides the UE with the service; after receiving the global CN ID of the MSC/VLR, the eNodeB uses the existing procedure to drop the UE back to the target 2G/3G base station (refer to the 3GPP TS 23.272 protocol for details), and Transmitting the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station; the target 2G/3G base station establishes and holds a correspondence between the IMSI of the UE and the global CN ID of the MSC/VLR; the UE is falling back After the target 2G/3G base station, the IMSI is used to send a paging response to the target 2G/3G base station; the target 2G/3G base station determines the MSC/VLR (ie, the MSC/VLR that initiate
  • a method for processing a downlink circuit switched back-off CSFB on a UE side is provided in the embodiment of the present invention.
  • the method is applied to an MSC Pool scenario, that is, at least two MSC/VLRs in the MSC Pool may be The UE service in the same location area, as shown in FIG. 2, the method includes:
  • the UE receives a global CN ID of the MSC/VLR sent by the MME, where the MSC/VLR is located in the MSC Pool.
  • the global CN ID of the MSC/VLR is sent by the MME to the UE after receiving the paging request sent by the MSC/VLR that initiates the paging.
  • the UE sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station, so that the target 2G/3G base station determines the MSC/VLR for the UE according to the received global CN ID. (ie the MSC/VLR that initiated the paging).
  • the UE receives the global CN ID of the MSC/VLR sent by the MME, where the MSC/VLR is located in the MSC Pool; in the CSFB procedure, the UE sends the IMSI of the UE and the MSC to the target 2G/3G base station. /VLR's global CN ID, such that the target 2G/3G base station determines the MSC/VLR for the UE based on the received global CN ID.
  • the target 2G/3G base station can be included according to the paging response.
  • the global CN ID determines the MSC/VLR (ie, the MSC/VLR that initiated the paging) for the UE, and routes the paging response to the determined MSC/VLR, avoiding the downlink CS service failure.
  • the embodiment of the present invention sends the IMSI of the UE and the MSC/VLR that initiates paging by the target 2G/3G base station in the CS domain network that the UE drops back to the UE in the CSFB procedure on the MME side shown in FIG. 1 above.
  • the global CN ID method corresponds. Specifically, the MME sends the IMSI of the UE and the global CN ID of the MSC/VLR to the UE; after receiving the global CN ID, the UE uses the existing process to fall back to the target 2G/3G base station (refer to the 3GPP TS 23.272 protocol for details).
  • the MSC/VLR (i.e., the MSC/VLR that initiated the paging) is determined for the UE, and the paging response sent by the UE using the IMSI is routed to the determined MSC/VLR.
  • the UE when the UE receives the global CN ID of the MSC/VLR sent by the MME, according to the current state of the UE, the UE further includes the following two preferred implementation manners:
  • the request message received by the UE is a paging message, and the paging message includes the global CN ID of the MSC/VLR in addition to the IMSI of the UE.
  • the paging message includes a paging message sent by the MME to the eNodeB serving the UE, and a paging message (such as an air interface paging message) sent by the eNodeB to the UE.
  • a paging message such as an air interface paging message
  • the MME sends a paging message to the eNodeB, and includes the IMSI of the UE and the global CN ID of the MSC/VLR in the paging message, so that the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR.
  • the eNodeB After receiving the paging message of the global CN ID of the IMSI and the MSC/VLR of the UE, the eNodeB sends an air interface paging message to the UE, and carries the IMSI of the UE and the MSC in the air interface paging message.
  • the UE further includes: before receiving the request message sent by the MME:
  • the UE After receiving the PS domain paging message sent by the S-TMSI of the UE, the UE enters the connected state from the idle state, where the CN field in the PS domain paging message is PS.
  • the MME sends a paging message for paging the UE to the eNodeB by using the S-TMSI, where the CN field in the paging message is set to "PS".
  • the eNodeB sends an air interface paging message for paging the UE to the UE by using the S-TMSI, where the CN field is set to "PS”.
  • the UE sends a service request (Service Request) message to the MME through the eNodeB, and the state of the UE changes from the idle state to the connected state.
  • Service Request Service Request
  • the request message sent by the MME is received, where the request message is a CS service notification message, and the CS service notification message includes a paging identifier in addition to the global CN ID of the MSC/VLR.
  • the value of the paging identification cell is used to indicate that the paging response is performed using the IMSI.
  • the receiving MME sends a CS service notification message to the UE by using the existing underlying signaling connection, where the message includes the paging identifier cell and the global CN ID of the MSC/VLR that initiates paging. .
  • the request message received by the UE is a CS service notification message
  • the CS service notification message includes a paging identifier cell, which includes a paging identifier cell, in addition to the global CN ID of the MSC/VLR. The value is used to indicate that the IMSI is used for the paging response.
  • the UE receives the CS service notification message sent by the MME to the UE by using the existing underlying signaling connection, where the message includes the paging identifier cell and the global CN ID of the MSC/VLR.
  • the UE initiates the CSFB process, specifically: the UE sends an Extended Service Request message to the MME, triggering the MME to initiate a CSFB fallback process to the eNodeB, and the entire CSFB fallback process is prior art.
  • the UE sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station, including:
  • the UE transmits a paging response including the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station, where the paging response is a response message to the request message sent by the MME.
  • the method further includes: the UE buffering the global CN ID of the received MSC/VLR;
  • the method further includes: deleting, by the UE, the global CN ID of the buffered MSC/VLR.
  • the UE performs the CS domain on the target side 2G/3G network.
  • CS CS service After the CS service ends, the UE can delete the cached MSC/VLR global CN ID.
  • a paging processing method for a downlink circuit switched back-off CSFB on an eNodeB side is provided in the embodiment of the present invention.
  • the method is applied to an MSC Pool scenario, that is, at least two MSC/VLRs in the MSC Pool may be
  • the UE service in the same location area, as shown in FIG. 3, the method includes:
  • the eNodeB receives the IMSI of the UE and the global CN ID of the MSC/VLR, where the MSC/VLR is located in the MSC Pool.
  • the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station, so that after the UE falls back to the target 2G/3G base station, the target 2G/3G base station according to the global
  • the CN ID determines the MSC/VLR (i.e., the MSC/VLR that initiated the paging) for the UE.
  • the eNodeB receives the IMSI of the UE and the global CN ID of the MSC/VLR, where the MSC/VLR is located in the MSC Pool; in the CSFB process, the eNodeB sends the UE to the target 2G/3G base station.
  • the IMSI and the global CN ID of the MSC/VLR that initiated the paging so that after the UE falls back to the target 2G/3G base station, the target 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID (ie, initiates paging).
  • the MSC/VLR can further route the received paging response sent by the UE to the determined MSC/VLR, thereby avoiding the downlink CS service failure.
  • the embodiment of the present invention sends the IMSI of the UE and the paging initiated by the target 2G/3G base station in the CS domain network that the eNodeB serving the UE in the CSFB process falls back to the UE on the MME side shown in FIG.
  • the global CN ID of the MSC/VLR corresponds to the mode.
  • the MME sends the IMSI of the UE and the global CN ID of the MSC/VLR that initiates the paging to the eNodeB that provides the UE with the service; after receiving the global CN ID of the MSC/VLR, the eNodeB uses the existing process.
  • the UE falls back to the target 2G/3G base station (refer to the 3GPP TS 23.272 protocol for details), and sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station; the target 2G/3G base station establishes and saves the UE The correspondence between the IMSI and the global CN ID of the MSC/VLR; after the UE falls back to the target 2G/3G base station, the UE sends the paging response to the target 2G/3G base station using the IMSI; the target 2G/3G base station according to the saved correspondence , determining the MSC/VLR for the UE (ie, initiating homing) The called MSC/VLR), and routes the paging response sent by the UE to the determined MSC/VLR.
  • the eNodeB receives the IMSI of the UE and the global CN ID of the MSC/VLR sent by the MME, including:
  • the eNodeB receives the notification message sent by the MME, including the IMSI of the UE and the global CN ID of the MSC/VLR, and the notification message is: a paging message or a downlink transmission message.
  • the following describes the notification message received by the eNodeB in detail.
  • the eNodeB receives the notification message sent by the MME as a paging message, where the paging message includes the IMSI of the UE and the global CN ID of the MSC/VLR.
  • the MME sends a paging message to the eNodeB, and the paging message includes the IMSI of the UE and the global CN ID of the MSC/VLR that initiates the paging.
  • the eNodeB After receiving the paging message sent by the MME, the eNodeB sends a paging message (such as an air interface paging message) to the UE, where the paging message includes the IMSI of the UE, and the CN domain in the paging message Set to "CS" to trigger the UE to initiate the CSFB process to fall back to the target 2G/3G base station.
  • a paging message such as an air interface paging message
  • the paging message includes the IMSI of the UE, and the CN domain in the paging message Set to "CS" to trigger the UE to initiate the CSFB process to fall back to the target 2G/3G base station.
  • the procedure is the same as the prior art. For details, refer to the 3GPP TS 23.272 protocol.
  • the eNodeB transmits the IMSI of the UE and the global CN ID of the MSC/VLR that initiated the paging to the target 2G/3G base
  • the eNodeB receives the notification message sent by the MME as a downlink transmission message, where the downlink transmission message includes the IMSI of the UE and the global CN ID of the MSC/VLR.
  • the downlink transmission message sent by the MME received by the eNodeB is a Down Access NAS Transport message
  • the downlink NAS transmission message includes a CS service notification message.
  • the eNodeB After receiving the downlink transmission message sent by the MME, the eNodeB sends the CS service notification message included in the downlink transmission message to the UE by using the existing underlying signaling connection, to trigger the UE to initiate the CSFB process to fall back to the target 2G.
  • the process is the same as the prior art, and specifically refer to the 3GPP TS 23.272 protocol.
  • the eNodeB uses the IMSI of the UE Based on any of the foregoing embodiments, in S32, the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station, including:
  • the eNodeB sends the IMSI and the global CN ID to the target 2G/3G base station during the PS handover procedure or redirection process. Specifically:
  • the eNodeB If the eNodeB drops the UE to the target 2G/3G base station through the PS handover procedure, the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station selected by the eNodeB.
  • the eNodeB can transmit the IMSI of the UE and the global CN ID of the MSC/VLR to the target 2G/3G base station in a transparent container of the original eNodeB to the target 2G/3G base station.
  • the eNodeB If the eNodeB drops the UE back to the target 2G/3G base station through the redirection process, the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR to all 2G/3G base stations adjacent to the eNodeB.
  • the eNodeB can send the IMSI of the UE and the global CN ID of the MSC/VLR to all 2G/3G base stations adjacent to the eNodeB through a Radio Access Network Information Management (RIM) procedure.
  • RIM Radio Access Network Information Management
  • the eNodeB can learn related information of all 2G/3G base stations adjacent to the eNodeB through the configuration of the network management system, and can also discover related information of all 2G/3G base stations adjacent to the eNodeB through an automatic neighbor discovery process.
  • a paging processing method for a downlink circuit switched back-off CSFB on a 2G/3G base station side is provided in the embodiment of the present invention.
  • the method is applied to an MSC Pool scenario, that is, at least two MSCs in the MSC Pool.
  • the VLR can serve UEs in the same location area, as shown in FIG. 4, the method includes:
  • the 2G/3G base station receives the global CN ID of the IMSI and the MSC/VLR of the UE from the UE, the eNodeB, or the MSC/VLR, where the MSC/VLR is located in the MSC Pool;
  • the 2G/3G base station determines the MSC/VLR (ie, the MSC/VLR that initiates the paging) for the UE according to the global CN ID. .
  • the 2G/3G base station receives the IMSI of the UE and the global CN ID of the MSC/VLR from the UE, the eNodeB, or the MSC/VLR, where the MSC/VLR is located in the MSC Pool; in the CSFB process, When the 2G/3G base station is the target 2G/3G base station in the CS domain network to which the UE falls back, the 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID.
  • the MSC/VLR After the 2G/3G base station receives the IMSI of the UE and the global CN ID of the MSC/VLR, after receiving the paging response sent by the UE, the MSC/VLR can be determined for the UE according to the global CN ID corresponding to the IMSI of the UE.
  • the paging MSC/VLR thereby routing the paging response to the determined MSC/VLR, avoids downlink CS service failure.
  • the 2G/3G base station receives the global CN ID of the IMSI and the MSC/VLR of the UE from the UE, the eNodeB, or the MSC/VLR, including:
  • the 2G/3G base station receives the paging response sent by the UE, where the paging response includes the IMSI of the UE and the global CN ID of the MSC/VLR, and the paging response is a response message to the request message sent by the MME, where the request message includes The global CN ID of the MSC/VLR.
  • the request message sent by the MME is a paging message or a CS service notification message.
  • the 2G/3G base station receives the global CN ID of the IMSI and the MSC/VLR of the UE from the UE, the eNodeB, or the MSC/VLR, including:
  • the 2G/3G base station receives the IMSI of the UE and the global CN ID of the MSC/VLR sent by the eNodeB, where the IMSI of the UE and the global CN ID of the MSC/VLR are sent by the MME to the eNodeB by using a notification message.
  • the 2G/3G base station receives the IMSI of the UE and the global CN ID of the MSC/VLR sent by the eNodeB in the PS handover procedure or the radio access network information management procedure.
  • the notification message sent by the MME is: a paging message or a downlink transmission message.
  • the 2G/3G base station receives the IMSI of the UE and the global CN ID of the MSC/VLR that initiates paging from the UE, the eNodeB, or the MSC/VLR, including:
  • the 2G/3G base station receives the IMSI of the UE sent by the MSC/VLR and its own global CN ID, where the IMSI of the UE and the global CN ID of the MSC/VLR are sent after the MSC/VLR receives the downlink CS service request for the UE. of.
  • the MSC/VLR receives the downlink CS service request for the UE, where the MSC/VLR is located in the MSC Pool; and the MSC/VLR sends the IMSI of the UE and the global CN ID of the MSC/VLR to the 2G/3G base station.
  • the target 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID (ie, the MSC that initiates paging). /VLR ).
  • the IMS/VLR sends the IMSI of the UE and the global CN ID of the MSC/VLR to all 2G/3G base stations in the service range (including the target 2G/3G base station of the CS domain network to which the UE falls back);
  • Each 2G/3G base station establishes and stores a correspondence between the IMSI of the UE and the global CN ID of the MSC/VLR; after the UE falls back to the target 2G/3G base station, the UE sends the paging to the target 2G/3G base station by using the IMSI.
  • the target 2G/3G base station determines the MSC/VLR (ie, the MSC/VLR that initiated the paging) for the UE, and routes the paging response sent by the UE to the determined MSC/VLR.
  • the MSC/VLR ie, the MSC/VLR that initiated the paging
  • the MSC/VLR sends the IMSI of the UE and the global CN ID of the MSC/VLR to the 2G/3G base station, including:
  • the MSC/VLR sends the IMSI of the UE and its global CN ID to all 2G/3G base stations in its own service range through the existing downlink A/Iu interface message; or
  • the MSC/VLR sends the IMSI of the UE and its global CN ID to all 2G/3G base stations in its own service range through the newly defined A/Iu interface message.
  • the MME requests the UE to initiate a CSFB procedure to cause the UE to fall back to the target 2G/3G base station; and after the UE falls back to the target 2G/3G base station, sends a paging response to the target 2G/3G base station to notify the target 2G/ The 3G base station itself has dropped back to the CS domain network.
  • This process is the same as the prior art, as described in the 3GPP TS 23.272 protocol.
  • the 2G/3G base station After receiving the IMSI of the UE and the global CN ID of the MSC/VLR, the 2G/3G base station further includes: 2G/3G base station establishes and saves the correspondence between the IMSI of the UE and the global CN ID of the MSC/VLR. ;
  • the 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID corresponding to the IMSI of the UE, including: the 2G/3G base station determines the IMSI of the UE according to the saved correspondence relationship.
  • the 2G/3G base station determines the IMSI of the UE according to the saved correspondence relationship.
  • the MSC/VLR corresponding to the global CN ID (ie, the MSC/VLR that initiated the paging).
  • the method further includes:
  • the 2G/3G base station starts the configured timer
  • the correspondence between the IMSI of the saved UE and the global CN ID of the MSC/VLR is deleted.
  • the setting of the timer duration is set by the operator, or the default value is used.
  • the method further includes:
  • the target 2G/3G base station transmits the paging response of the UE to the determined MSC/VLR.
  • the interaction between the MSC/VLR, the MME, the eNodeB, the UE, and the 2G/3G base station (BSS/RNS) in the method provided by the present invention will be described in detail below with reference to three specific embodiments.
  • Embodiment 1 As shown in FIG. 5, the process of this embodiment is as follows:
  • the UE initiates a joint attach procedure or a joint location update procedure, and successfully registers in the EPC network PS domain MME and the 2G/3G network CS domain MSC/VLR.
  • the MSC/VLR After receiving the downlink CS service request, the MSC/VLR initiates a paging request to the MME associated with the SGs by using the IMSI of the UE, where the paging request carries the global CN ID of the MSC/VLR.
  • the MME After receiving the SGs paging request sent by the MSC/VLR, the MME performs different operations according to the current state of the UE: if the UE is currently in the idle state, step 3b or 3c is performed; if the UE is currently in the connected state, the MME performs Step 3d.
  • the MME sends a paging message to the eNodeB, where the paging message includes the IMSI of the UE and the global CN ID of the MSC/VLR received from the MSC/VLR, and the CN field in the paging message is set to
  • the eNodeB forwards the IMSI of the UE and the global CN ID of the MSC/VLR to the UE in an air interface paging message, where the CN field in the air interface paging message is set to "CS".
  • the MME sends a paging message to the eNodeB using the S-TMSI, and the CN domain in the paging message Set to "PS".
  • the eNodeB sends an air interface paging message to the UE by using the S-TMSI, and the CN field in the air interface paging message is set to "PS".
  • the UE After receiving the air interface paging message, the UE sends a service request (Service Request) message to the MME to respond.
  • the MME After the UE enters the connected state, the MME sends an CS service notification message to the UE by using the existing underlying signaling connection, where the message includes the IMSI indication and the global CN ID of the MSC/VLR received from the MSC/VLR.
  • the MME uses the S-TMSI and the CN domain to initiate paging, which is mainly to change the UE from the idle state to the connected state, so as to avoid carrying the MSC/VLR directly in the paging message.
  • Global CN ID increases unnecessary paging delay and paging resource overhead because the global CN ID of the MSC/VLR is 5 bytes in length.
  • the MME sends an CS service notification message to the UE by using the existing underlying signaling connection, and the CS service notification message includes an IMSI indication and a global CN ID of the MSC/VLR received from the MSC/VLR.
  • the UE buffers the received global CN ID of the MSC/VLR.
  • the UE After receiving the paging message or CS service notification message with the CN field being "CS", the UE initiates the CSFB process.
  • the UE sends an Extended Service Request message to the MME, which triggers the MME to initiate a CSFB fallback process to the eNodeB.
  • the entire CSFB fallback process is an existing technology and will not be described here.
  • the UE uses the paging message containing the IMSI in step 3b, or receives the CS service notification message including the IMSI indication in step 3c or 3d.
  • the IMSI performs a paging response, and the UE carries the buffered MSC global CN ID to the BSS/RNS in the paging response.
  • the BSS/RNS selects the serving MSC/VLR for the UE according to the global CN ID of the MSC/VLR carried in the paging response. Since the global CN ID of the MSC/VLR can uniquely identify an MSC/VLR in the operator PLMN, including in the MSC pool scenario, it can ensure that the BSS/RNS routes the paging response to the MSC/VLR that initiates the SGs paging. To avoid the failure of the downlink CS service. 8. After the CS signaling connection is successfully established, the UE performs the CS service on the target side 2G/3G network CS domain. Optionally, after the CS service ends, the UE may delete the global CN ID of the cached MSC/VLR.
  • Embodiment 2 As shown in FIG. 6, the process of this embodiment is as follows:
  • the UE initiates a joint attach procedure or a joint location update procedure, and successfully registers in the EPC network PS domain MME and the 2G/3G network CS domain MSC/VLR.
  • the MSC/VLR After receiving the downlink CS service request, the MSC/VLR initiates a paging request to the MME associated with the SGs by using the IMSI of the UE, where the paging request carries the global CN ID of the MSC/VLR.
  • the MME After receiving the SGs paging request message sent by the MSC/VLR, the MME performs different operations according to the current state of the UE: If the UE is currently in the idle state, step 3b is performed; if the UE is currently in the connected state, the step is performed. 3c.
  • the MME sends a paging message to the eNodeB, where the paging message includes the IMSI of the UE and the global CN ID of the MSC/VLR received from the MSC/VLR, and the CN field in the paging message is set to
  • the eNodeB sends an air interface paging message to the UE, where the air interface paging message includes the IMSI of the UE, and the CN field is set to "CS".
  • the MME sends a downlink DOWNLINK NAS TRANSPORT message to the eNodeB, where the downlink NAS transport message includes a CS service notification message, an IMSI of the UE, and a global CN ID of the MSC/VLR received from the MSC/VLR.
  • the eNodeB forwards the CS service notification message to the UE, where the CS service notification message includes an IMSI indication.
  • the eNodeB saves the global CN ID of the received IMSI and MSC/VLR of the UE.
  • the UE After receiving the paging message or CS service notification message with the CN field being "CS", the UE initiates the CSFB process.
  • the UE sends an extended service request (Extended Service Request) message to the MME, and triggers the MME to initiate a CSFB fallback process to the eNodeB.
  • extended service request Extended Service Request
  • the entire CSFB fallback process is prior art and will not be described here. 5b. If the eNodeB drops the UE to the CS domain of the 2G/3G network through the PS handover, step 5c is performed; if the eNodeB drops the UE back to the CS domain of the 2G/3G network by redirection, step 5d is performed:
  • the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR to the target side BSS/RNS selected by the eNodeB in the PS handover procedure.
  • the eNodeB transmits the IMSI of the UE and the global CN ID of the MSC/VLR to the target side BSS/RNS in the transparent container of the original side eNodeB to the target side BSS/RNS.
  • the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR to all neighboring BSS/RNS.
  • the eNodeB sends the IMSI of the UE and the global CN ID of the MSC/VLR to all neighboring BSS/RNS through the RAN Information Management (RIM).
  • the eNodeB can learn the location information of the neighboring BSS/RNS through the configuration of the network management system, and can also find the location information of the adjacent BSS/RNS through the automatic neighbor discovery process.
  • the target side BSS/RNS or the neighboring BSS/RNS caches the UE's IMSI and the global CN ID of the MSC/VLR. Specifically, the target side BSS/RNS or the neighboring BSS/RNS may establish a correspondence between the IMSI of the UE and the global CN ID of the MSC/VLR.
  • the target side BSS/RNS or the neighboring BSS/RNS may start a timer after receiving the IMSI of the UE and the global CN ID of the MSC/VLR, and when the timer expires, the IMSI and the MSC of the saved UE may be cleared. /VLR's global CN ID.
  • the setting of the timer duration is set by the operator or the default value is used.
  • the UE After successfully falling back to the CS domain of the 2G/3G network, the UE receives the paging message containing the IMSI in step 3b, or receives the CS service notification message including the IMSI indication in step 3c, and the UE uses the IMSI. Paging response.
  • the BSS/RNS After receiving the IMSI paging response, the BSS/RNS obtains the global CN ID of the MSC/VLR according to the IMSI from the correspondence between the saved IMSI and the global CN ID of the MSC/VLR, and according to the global CN ID of the MSC/VLR.
  • the serving MSC/VLR is selected for the UE and the received paging response is sent to the selected MSC/VLR. Since the global CN ID of the MSC/VLR can be used by the operator
  • the MSC/VLR is uniquely identified in the PLMN, and is included in the scenario of the MSC pool. Therefore, the BSS/RNS can ensure that the paging response is routed to the MSC/VLR that initiates the SGs paging, thereby avoiding the failure of the downlink CS service.
  • the UE After the CS signaling connection is successfully established, the UE performs the CS service on the target side 2G/3G network CS domain.
  • Embodiment 3 As shown in FIG. 7, the flow of this embodiment is as follows:
  • the UE initiates a joint attach procedure or a joint location update procedure, and successfully registers in the EPC network PS domain MME and the 2G/3G network CS domain MSC/VLR.
  • the MSC/VLR After receiving the downlink CS service request, the MSC/VLR initiates a paging request to the MME associated with the SGs by using the IMSI of the UE, where the paging request carries the global CN ID of the MSC/VLR. At the same time, the MSC/VLR sends the IMSI of the UE and the global CN ID of the MSC/VLR to all BSS/RNS within the scope of the MSC/VLR service.
  • the MSC/VLR sends the IMSI of the UE and the global CN ID of the MSC/VLR to the BSS/RNS through the existing downlink A/Iu interface message or the newly defined A/Iu interface message, and the specific sending manner is not performed by the present invention. limited.
  • the BSS/RNS caches the IMSI of the UE and the global CN ID of the MSC/VLR.
  • the BSS/RNS may establish a correspondence between the IMSI of the UE and the global CN ID of the MSC/VLR.
  • the BSS/RNS may start a timer after receiving the IMSI of the UE and the global CN ID of the MSC/VLR, and may clear the IMSI of the saved UE and the global CN ID of the MSC/VLR when the timer expires.
  • the setting of the timer duration is set by the operator or the default value is used.
  • the MME After receiving the SGs paging request message sent by the MSC/VLR, the MME performs different operations according to the current state of the UE: If the UE is currently in the idle state, step 3b is performed; if the UE is currently in the connected state, the step is performed. 3c.
  • the MME sends a paging message to the eNodeB, where the paging message includes the IMSI of the UE, and the CN field in the paging message is set to "CS".
  • the eNodeB sends an air interface paging message to the UE, where the air interface paging message includes the IMSI of the UE, and the CN field is set to "CS";
  • the MME sends a CS service notification message to the UE by using the existing underlying signaling connection, the CS
  • the service notification message contains an IMSI indication.
  • the UE After receiving the paging message or CS service notification message with the CN field being "CS", the UE initiates the CSFB process.
  • the UE sends an Extended Service Request message to the MME, which triggers the MME to initiate a CSFB fallback process to the eNodeB.
  • the entire CSFB fallback process is an existing technology and will not be described here.
  • the UE After successfully returning to the CS domain of the 2G/3G network, the UE receives the paging message containing the IMSI in step 3b, or receives the CS service notification message including the IMSI indication in step 3c, and the UE uses the IMSI. Paging response.
  • the BSS/RNS After receiving the IMSI paging response, the BSS/RNS obtains the global CN ID of the MSC/VLR according to the IMSI from the correspondence between the saved IMSI and the global CN ID of the MSC/VLR, and according to the global CN ID of the MSC/VLR.
  • the serving MSC/VLR is selected for the UE and the received paging response is sent to the selected MSC/VLR. Since the global CN ID of the MSC/VLR can uniquely identify an MSC/VLR in the operator PLMN, including in the MSC pool scenario, it can ensure that the BSS/RNS routes the paging response to the MSC/VLR that initiates the SGs paging. To avoid the failure of the downlink CS service.
  • the UE After the CS signaling connection is successfully established, the UE performs the CS service on the target side 2G/3G network CS domain.
  • an embodiment of the present invention further provides a mobility management entity MME.
  • the MME includes:
  • the receiving unit 81 is configured to receive a paging request message sent by the mobile services switching center/visiting location register MSC/VLR, where the paging request message includes an international mobile subscriber identity IMSI of the user equipment UE and the MSC/VLR
  • the global core network identifies the CN ID, and the MSC/VLR is located in the MSC resource pool;
  • the sending unit 82 is configured to send, by using the UE or the evolved Node B eNodeB, the IMSI and the global CN ID to the target second generation/third generation 2G/3G base station, so that the UE falls back to the After the target 2G/3G base station, the target 2G/3G base station is configured according to the global CN ID.
  • the UE determines the MSC/VLR.
  • the transmitting unit 82 sends the IMSI and the global CN ID to the target 2G/3G base station by using the UE, including:
  • the 3G base station, where the request message is: a paging message or a CS service notification message.
  • the paging message further includes the IMSI; or
  • the CS service notification message further includes a paging identifier Paging identity cell, and the value of the paging identifier cell is used to indicate that the paging response is performed using the IMSI.
  • the sending unit 82 is further configured to:
  • IMSI and the global CN ID including:
  • the message is: a paging message or a downlink transmission message.
  • the MME provided by the embodiment of the present invention may use other structures in addition to the foregoing structure, and specifically: the function of the receiving unit 81 in the foregoing structure may be implemented by a receiver; the sending unit 82 may be implemented by a transmitter; The functions of the 81 and the transmitting unit 82 can also be implemented by a transceiver, a network card, a serial port, or the like.
  • the implementation of the present invention provides a user equipment UE.
  • the UE includes:
  • the receiving unit 91 is configured to receive a global core network identifier CN ID of the mobile service switching center/visiting location register MSC/VLR sent by the mobility management entity MME, where the MSC/VLR is located in the MSC resource pool;
  • the sending unit 92 is configured to send, in the circuit switched fallback CSFB process, the international mobile subscriber identity IMSI and the global CN ID of the UE to the target second generation/third generation 2G/3G base station, so that the target 2G The /3G base station determines the MSC/VLR for the UE according to the global CN ID.
  • the receiving unit 91 is specifically configured to:
  • a request message that includes the global CN ID, where the request message is: a paging message or a CS service notification message.
  • the paging message further includes the IMSI; or
  • the CS service notification message further includes a paging identification cell, and the value of the paging identification cell is used to indicate that the paging response is performed using IMSI.
  • the receiving unit 91 is further configured to:
  • the MME After receiving the packet switched PS domain paging message sent by the S-TMSI of the UE, the MME enters a connected state from an idle state, where the CN field in the PS domain paging message is PS.
  • the sending unit 92 is specifically configured to:
  • paging response including the IMSI and the global CN ID, where the paging response is a response message to a request message sent by the MME.
  • the UE further includes:
  • the processing unit 93 is configured to: after the receiving unit 91 receives the request message sent by the MME, buffer the global CN ID of the MSC/VLR; and after the sending unit 92 sends the paging response to the target 2G/3G base station, delete The global CN ID of the MSC/VLR that has been cached.
  • the UE provided by the embodiment of the present invention may also use other structures, specifically: the function of the receiving unit 91 in the foregoing structure may be implemented by a receiver; the function of the sending unit 92 may be implemented by using a transmitter.
  • the functions of the receiving unit 91 and the transmitting unit 92 can also be implemented by means of a transceiver, a network card, a serial port, etc.; the functions of the processor unit 93 can be implemented by a processor, a dedicated processing circuit, or the like.
  • an embodiment of the present invention further provides an evolved Node B eNodeB.
  • the eNodeB includes:
  • the receiving unit 101 is configured to receive an international mobile subscriber identity IMSI of the user equipment UE and a global core network identifier CN ID of the mobile service switching center/visit location register MSC/VLR sent by the mobility management entity MME, where the MSC/VLR is located In the MSC resource pool;
  • the sending unit 102 is configured to send, in the CSFB process, the IMSI and the global CN ID to the target second generation/third generation 2G/3G base station, so that the UE falls back to the target 2G/3G base station. Thereafter, the target 2G/3G base station determines the MSC/VLR for the UE according to the global CN ID.
  • the receiving unit 101 is specifically configured to:
  • a notification message that includes the IMSI and the global CN ID, where the notification message is: a paging message or a downlink transmission message.
  • the sending unit 102 is specifically configured to:
  • the IMSI and the global CN ID are transmitted to the target 2G/3G base station during a packet switched PS handover procedure or redirection procedure.
  • the eNodeB provided by the embodiment of the present invention may also use other structures, specifically: the function of the receiving unit 101 in the foregoing structure may be implemented by a receiver; the function of the sending unit 102 may be implemented by using a transmitter.
  • the functions of the receiving unit 101 and the transmitting unit 102 can also be implemented by means of a transceiver, a network card, a serial port, and the like.
  • an embodiment of the present invention further provides a second generation/third generation 2G/3G base station.
  • the 2G/3G base station includes:
  • the receiving unit 111 is configured to receive, from the user equipment UE, the evolved Node B eNodeB or the mobile service switching center/visit location register MSC/VLR, the international mobile subscriber identity IMSI of the UE and the global core network identifier CN of the MSC/VLR. ID, where the MSC/VLR is located in an MSC resource pool;
  • the processing unit 112 is configured to determine, in the CSFB process, the MSC/VLR for the UE according to the global CN ID, when the 2G/3G base station is a target 2G/3G base station that the UE falls back to.
  • the receiving unit 111 is specifically configured to:
  • paging response includes the IMSI and the global CN ID
  • the paging response is a response message to a request message sent by the mobility management entity MME
  • the request message includes the global CN ID
  • the MSC/VLR Receiving, by the MSC/VLR, the IMSI and the global CN ID, where the IMSI and the global CN ID are sent by the MSC/VLR after receiving a downlink circuit switched CS service request for the UE.
  • the 2G/3G base station further includes:
  • the sending unit 113 is configured to send, in the CSFB process, a paging response of the UE to the MSC/VLR.
  • the 2G/3G base station may also adopt other structures, specifically: the function of the receiving unit 111 in the foregoing structure may be implemented by a receiver; the function of the sending unit 113 may pass The function of the receiving unit 111 and the transmitting unit 113 can also be implemented by a device such as a transceiver, a network card, a serial port, etc.; the functions of the processor unit 112 can be implemented by a processor, a dedicated processing circuit, or the like.
  • 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 be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • a computer-usable storage medium 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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Abstract

提供了一种下行CSFB的寻呼处理方法和设备,从而解决了在UE回落到2G/3G网络CS域后,2G/3G基站无法将UE的寻呼响应发送给MSC资源池中发起寻呼的MSC/VLR的问题。方法包括:MME接收到MSC/VLR发送的寻呼请求消息,该寻呼请求消息包括UE的IMSI和该MSC/VLR的全局CN ID,该MSC/VLR位于MSC资源池中(S11);MME通过UE或者eNodeB向目标2G/3G基站发送该IMSI和该全局CN ID,以使UE回落到目标2G/3G基站后,目标2G/3G基站根据该全局CN ID为UE确定MSC/VLR(S12),从而确保目标2G/3G基站将UE的寻呼响应路由到发起寻呼的MSC/VLR。

Description

一种下行电路交换回落 CSFB的寻呼处理方法和设备 技术领域
本发明涉及无线通信技术领域,特别涉及一种下行电路交换回落( Circuit Switched Fallback, CSFB ) 的寻呼处理方法和设备。 背景技术
演进分组系统( Evolved Packet System, 简称 EPS )是第三代合作伙伴项 目 ( 3rd Generation Partnership Project, 简称 3 GPP )在第二代 ( The Second Generation, 简称 2G )移动通信网络(即 GSM/EDGE: Global System of Mobile Communication/Enhanced Data Rate for GSM Evolution, 全球移动通信系统 /增 强型数据速率 GSM演进技术; GSM: Global System for Mobile, 全球移动通 信 )和第三代( The Third Generation, 简称 3G )移动通信网络(即 UMTS: Universal Mobile Telecommunications System, 通用移动通信系统 )的基础上推 出的。 EPS网络包括演进通用移动通信系统陆地无线接入网( Evolved Universal Mobile Telecommunication System Territorial Radio Access Network , 简称 E-UTRAN )和演进分组核心网 ( Evolved Packet Core Network, 简称 EPC ), EPS网络只能提供分组交换( Packet Switched, 简称 PS )业务。
基于现有 2G/3G网络中移动交换中心 /拜访位置寄存器 (Mobile Switching Center/Visitors Location Register, 简称 MSC/VLR)与移动管理实体(Mobility Management Entity, 简称 MME )之间的 SGs接口功能, 3GPP提出了"电路交 换回落,,(简称 CSFB )技术与 SGs短消息传输( Short Message Service over SGs, 简称 SMS over SGs )技术。 CSFB技术使 E-UTRAN覆盖下的用户设备 ( User Equipment, 简称 UE )在需要处理电路交换( Circuit Switched, 简称 CS )语 音业务时, 通过 E-UTRAN回落到 2G/3G网络 CS域, 以完成业务处理。 SMS over SGs技术让驻留在 E-UTRAN下的 UE重用现有 CS域来实现 CS短消息 的传输。
在上述 CSFB与 SMS over SGs机制中, 驻留在 E-UTRAN且支持 CSFB 和 /或 SMS over SGs的 UE需要发起联合注册流程, 实现到 EPC网络 PS域与 2G/3G网络 CS域的同时注册。 在成功实现联合注册后, 上下行的 CSFB业务 以及上下行的短消息业务才能正常发起。
在部署了 MSC资源池(MSC Pool ) 的场景下, 对于空闲态 UE的下行 CS业务, 当 UE驻留在 2G/3G网络时, 为 UE服务的 MSC/VLR发起的寻呼 能正常进行。 但是当 UE驻留在 E-UTRAN时, 为 UE服务的 MSC/VLR发起 的寻呼会出现问题。 发明内容
本发明实施例提供了一种下行 CSFB 的寻呼处理方法和设备, 从而解决 了在 UE回落到 2G/3G网络 CS域后,由于 2G/3G基站无法将接收到的 UE发 送的寻呼响应发送给 MSC Pool中发起本次寻呼的 MSC/VLR而导致的下行 CS业务失败的问题。
本发明实施例提供的一种 MME侧的下行 CSFB的寻呼处理方法, 包括: MME接收到 MSC/VLR发送的寻呼请求消息, 其中, 所述寻呼请求消息 中包括 UE的 IMSI和所述 MSC/VLR的全局 CN ID,所述 MSC/VLR位于 MSC 资源池中;
所述 MME通过所述 UE或者 eNodeB,向目标 2G/3G基站发送所述 IMSI 和所述全局 CN ID , 以使所述 UE回落到所述目标 2G/3G基站后, 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 所述 MME通过所述 UE向所述目标 2G/3G基站发送所述 IMSI 和所述全局 CN ID, 包括:
所述 MME将包括所述全局 CN ID的请求消息发送给所述 UE, 以使所述 UE在回落到所述目标 2G/3G基站后,将所述 IMSI和所述全局 CN ID发送给 所述目标 2G/3G基站, 其中, 所述请求消息为: 寻呼消息或者 CS业务通知 消息。
较佳地, 所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识( Paging identity )信元, 所述寻呼 标识信元的值用于指示使用 IMSI进行寻呼响应。
较佳地,当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 所述方法还包括:
所述 MME使用所述 UE的 S-TMSI向所述 UE发送分组交换 PS域寻呼 消息,以使所述 UE进入连接态,其中,所述 PS域寻呼消息中的 CN域为 PS。
较佳地, 所述 MME通过所述 eNodeB向所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID, 包括:
所述 MME将包括所述 IMSI和所述全局 CN ID的通知消息发送给所述 eNodeB, 以使所述 eNodeB将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述通知消息为: 寻呼消息或者下行传送消息。
本发明实施例提供的一种 UE侧的下行 CSFB的寻呼处理方法,该方法包 括:
UE接收 MME发送的 MSC/VLR的全局 CN ID, 其中, 所述 MSC/VLR 位于 MSC资源池中;
在 CSFB流程中, 所述 UE向目标 2G/3G基站发送所述 UE的 IMSI和所 述全局 CN ID, 以使所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确 定 MSC/VLR。
较佳地, 所述 UE接收所述 MME发送的所述 MSC/VLR的全局 CN ID , 包括:
所述 UE接收所述 MME发送的包括所述全局 CN ID的请求消息, 所述 请求消息为: 寻呼消息或者 CS业务通知消息。
较佳地所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识信元,所述寻呼标识信元的值用于 指示使用 IMSI进行寻呼响应。 较佳地,当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 所述方法还包括:
所述 UE接收到所述 MME使用 UE的 S-TMSI发送的 PS域寻呼消息后, 从空闲态进入连接态, 其中, 所述 PS域寻呼消息中的 CN域为 PS。
较佳地, 所述 UE向所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID, 包括:
所述 UE向所述目标 2G/3G基站发送包括所述 IMSI和所述全局 CN ID的 寻呼响应 , 所述寻呼响应是对所述 MME发送的请求消息的响应消息。
较佳地,所述 UE接收到所述 MME发送的请求消息之后 ,该方法还包括: 所述 UE緩存所述 MSC/VLR的全局 CN ID;
所述 UE向目标 2G/3G基站发送寻呼响应之后, 该方法还包括: 所述 UE 删除已緩存的所述 MSC/VLR的全局 CN ID。
本发明实施例提供的一种 eNodeB侧的下行 CSFB的寻呼处理方法,该方 法包括:
eNodeB接收 MME发送的 UE的 IMSI和 MSC/VLR的全局 CN ID,其中, 所述 MSC/VLR位于 MSC资源池中;
在 CSFB流程中, 所述 eNodeB向目标 2G/3G基站, 发送所述 IMSI和所 述全局 CN ID,以使所述 UE回落到所述目标 2G/3G基站后,所述目标 2G/3G 基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 所述 eNodeB接收 MME发送的所述 IMSI和所述全局 CN ID, 包括:
所述 eNodeB接收所述 MME发送的包括所述 IMSI和所述全局 CN ID的 通知消息, 所述通知消息为: 寻呼消息或者下行传送消息。
较佳地, 所述 eNodeB向所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID, 包括:
所述 eNodeB在分组交换 PS切换过程或者重定向过程中将所述 IMSI和 所述全局 CN ID发送至所述目标 2G/3G基站。 本发明实施例提供的一种 2G/3G基站侧的下行 CSFB的寻呼处理方法, 该方法包括:
2G/3G基站从 UE、 eNodeB或者 MSC/VLR接收所述 UE的 IMSI和所述 MSC/VLR的全局 CN ID , 其中, 所述 MSC/VLR位于 MSC资源池中;
在 CSFB流程中, 当所述 2G/3G基站为所述 UE回落到的目标 2G/3G基 站, 所述 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 所述 2G/3G基站从 UE、 eNodeB或者 MSC/VLR接收所述 UE 的 IMSI和所述 MSC/VLR的全局 CN ID, 包括:
所述 2G/3G基站接收所述 UE发送的寻呼响应, 所述寻呼响应包括所述 IMSI和所述全局 CN ID, 所述寻呼响应是对移动管理实体 MME发送的请求 消息的响应消息, 所述请求消息包括所述全局 CN ID; 或者
所述 2G/3G基站接收所述 eNodeB发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和所述全局 CN ID是移动管理实体 MME通过通知消息发送给所述 eNodeB的; 或者
所述 2G/3G基站接收所述 MSC/VLR发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和所述全局 CN ID是所述 MSC/VLR接收到针对所述 UE的下行电 路交换 CS业务请求后发送的。
较佳地, 该方法还包括:
在所述 CSFB流程中, 所述目标 2G/3G基站将所述 UE的寻呼响应发送 给所述 MSC/VLR。
本发明实施例提供的一种 MME, 该 MME包括:
接收单元, 用于接收到 MSC/VLR发送的寻呼请求消息, 其中, 所述寻呼 请求消息中包括 UE的 IMSI和所述 MSC/VLR的全局 CN ID,所述 MSC/VLR 位于 MSC资源池中;
发送单元, 用于通过所述 UE或者 eNodeB, 向目标 2G/3G基站发送所述 IMSI和所述全局 CN ID , 以使所述 UE回落到所述目标 2G/3G基站后, 所述 目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。 较佳地,所述发送单元通过所述 UE向所述目标 2G/3G基站发送所述 IMSI 和所述全局 CN ID, 包括:
将包括所述全局 CN ID的请求消息发送给所述 UE, 以使所述 UE在回落 到所述目标 2G/3G基站后, 将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述请求消息为: 寻呼消息或者 CS业务通知消息。
较佳地, 所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识 Paging identity信元, 所述寻呼标 识信元的值用于指示使用 IMSI进行寻呼响应。
较佳地,当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 所述发送单元还用于:
使用所述 UE的 S-TMSI向所述 UE发送 PS域寻呼消息, 以使所述 UE 进入连接态, 其中, 所述 PS域寻呼消息中的核心网 CN域为 PS。
较佳地, 所述发送单元通过所述 eNodeB向所述目标 2G/3G基站发送所 述 IMSI和所述全局 CN ID, 包括:
将包括所述 IMSI和所述全局 CN ID的通知消息发送给所述 eNodeB, 以 使所述 eNodeB将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述通知消息为: 寻呼消息或者下行传送消息。
本发明实施例提供的一种 UE , 该 UE包括:
接收单元, 用于接收 MME发送的 MSC/VLR的全局 CN ID, 其中, 所述 MSC/VLR位于 MSC资源池中;
发送单元, 用于在下行 CSFB流程中, 向目标 2G/3G基站发送所述 UE 的 IMSI和所述全局 CN ID, 以使所述目标 2G/3G基站根据所述全局 CN ID 为所述 UE确定 MSC/VLR。
较佳地, 所述接收单元具体用于:
接收所述 MME发送的包括所述全局 CN ID的请求消息, 所述请求消息 为: 寻呼消息或者 CS业务通知消息。
较佳地, 所述寻呼消息还包括所述 IMSI; 或者, 所述 cs业务通知消息还包括寻呼标识信元,所述寻呼标识信元的值用于 指示使用 IMSI进行寻呼响应。
较佳地,当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 所述接收单元还用于:
接收到所述 MME使用 UE的 S-TMSI发送的分组交换 PS域寻呼消息后, 从空闲态进入连接态, 其中, 所述 PS域寻呼消息中的 CN域为 PS。
较佳地, 所述发送单元具体用于:
向所述目标 2G/3G基站发送包括所述 IMSI和所述全局 CN ID的寻呼响 应 , 所述寻呼响应是对所述 MME发送的请求消息的响应消息。
较佳地, 该 UE还包括:
处理单元, 用于在所述接收单元接收到所述 MME发送的请求消息之后 , 緩存所述 MSC/VLR的全局 CN ID; 以及在所述发送单元向目标 2G/3G基站 发送寻呼响应之后, 删除已緩存的所述 MSC/VLR的全局 CN ID。
本发明实施例提供的一种 eNodeB, 该 eNodeB包括:
接收单元, 用于接收 MME发送的 UE的 IMSI和 MSC/VLR的全局核心 网标识 CN ID, 其中, 所述 MSC/VLR位于 MSC资源池中;
发送单元, 用于在 CSFB流程中, 向目标 2G/3G基站, 发送所述 IMSI 和所述全局 CN ID , 以使所述 UE回落到所述目标 2G/3G基站后, 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 所述接收单元具体用于:
接收所述 MME发送的包括所述 IMSI和所述全局 CN ID的通知消息,所 述通知消息为: 寻呼消息或者下行传送消息。
较佳地, 所述发送单元具体用于:
在分组交换 PS切换过程或者重定向过程中将所述 IMSI和所述全局 CN ID发送至所述目标 2G/3G基站。
本发明实施例提供的一种 2G/3G基站, 该 2G/3G基站包括:
接收单元, 用于从 UE、 eNodeB或者 MSC/VLR接收所述 UE的 IMSI和 所述 MSC/VLR的全局 CN ID , 其中, 所述 MSC/VLR位于 MSC 资源池中; 处理单元, 用于在 CSFB流程中, 当该 2G/3G基站为所述 UE回落到的 目标 2G/3G基站, 根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 所述接收单元具体用于:
接收所述 UE发送的寻呼响应, 所述寻呼响应包括所述 IMSI和所述全局 CN ID, 所述寻呼响应是对 MME发送的请求消息的响应消息, 所述请求消息 包括所述全局 CN ID; 或者
接收所述 eNodeB发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和所 述全局 CN ID是移动管理实体 MME通过通知消息发送给所述 eNodeB的;或 者
接收所述 MSC/VLR发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和 所述全局 CN ID是所述 MSC/VLR接收到针对所述 UE的下行电路交换 CS业 务请求后发送的。
较佳地, 该 2G/3G基站还包括:
发送单元, 用于在所述 CSFB流程中, 将所述 UE的寻呼响应发送给所述 MSC/VLR。
本发明实施例提供的方法和设备中, MME在接收到 MSC/VLR发送的寻 呼请求消息后,通过 UE或者 eNodeB, 向目标 2G/3G基站发送该 UE的 IMSI 和该 MSC/VLR的全局 CN ID, 以使该 UE回落到目标 2G/3G基站后, 目标 2G/3G基站根据该全局 CN ID为该 UE确定 MSC/VLR。 由于 MME将 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID发送给了目标 2G/3G基站,使得 该目标 2G/3G基站在接收到 UE发送的寻呼响应后, 可以根据该全局 CN ID 为该 UE确定 MSC/VLR (发起寻呼的 MSC/VLR ), 并将寻呼响应发送给所确 定的 MSC/VLR,从而确保目标 2G/3G基站能够将 UE发送的寻呼响应路由到 发起寻呼的 MSC/VLR, 避免了下行 CS业务失败。 附图说明
图 1为本发明提供的一种 MME侧的下行电路交换回落 CSFB的寻呼处理 方法流程图;
图 2为本发明提供的一种 UE侧的下行电路交换回落 CSFB的寻呼处理方 法流程图;
图 3为本发明提供的一种 eNodeB侧的下行电路交换回落 CSFB的寻呼处 理方法流程图;
图 4为本发明提供的一种 2G/3G基站侧的下行电路交换回落 CSFB的寻 呼处理方法流程图;
图 5为本发明提供的实施例一的流程图;
图 6为本发明提供的实施例二的流程图;
图 7为本发明提供的实施例三的流程图;
图 8为本发明提供的 MME的结构示意图;
图 9为本发明提供的 UE的结构示意图;
图 10为本发明提供的 eNodeB的结构示意图;
图 11为本发明提供的 2G/3G基站的结构示意图。 具体实施方式
下面结合说明书附图对本发明实施例作进一步详细描述。 应当理解, 此 处所描述的实施例仅用于说明和解释本发明, 并不用于限定本发明, 显然, 所描述的实施例是本发明的一部分实施例, 而不是全部实施例。 基于本发明 中的实施例, 本领域普通技术人员在没有做出创造性劳动的前提下所获得的 所有其他实施例, 都应属于本发明保护的范围。
在本发明实施例中, 用户设备 UE ( User Equipment )可以为以下任意一 种, 并且 UE可以是静态的, 也可以是移动的。 UE可以包括但不限于: 站台 ( Station ), 移动台 ( Mobile Station )、 用户单元( Subscriber Unit )、 个人电脑 ( Personal Computer )、 膝上型电月亩 ( Laptop Computer )、 平板电月亩 ( Tablet Computer ), 上网本 (Netbook)、 UE ( Terminal )、 蜂窝电话( Cellular Phone )、 手持设备(Handheld ), 无绳电话( Cordless Phone )、 个人数字助理(Personal Digital Assistant, 简称 PDA ),数据卡( Data Card )、 USB插入设备、移动 WiFi 热点设备(MiFi Devices ), 智能手表、 智能眼镜、 无线调制解调器( Modem )、 无线路由器、 无线本地环路(Wireless Local Loop, 简称 WLL ) 台等。 上述 UE可以分布于整个无线网络中。 移动交换中心 MSC与拜访位置寄存器 VLR 通常合设为同一网元, 称为 MSC/VLR, 或简称为 VLR。 需要说明的是, 本发 明实施例中, 发起寻呼的 MSC/VLR, 就是当前为 UE服务的 MSC/VLR, 也 即 UE当前注册的 MSC/VLR。
在本发明实施例中, 演进型节点 B eNodeB , 是为 UE提供 E-UTRAN接 入服务的基站。 第二代 /第三代 2G/3G基站可以为 2G 网络中的基站子系统 ( Base Station Subsystem, BSS ), 或 3G 网络中的无线网络子系统 (Radio Network Subsystem, RNS)。
本发明人在研究中发现, 在部署了 MSC Pool的场景下, 由于同一位置区 域内可以有多个 MSC/VLR为 UE提供服务,若 MSC/VLR直接在 2G/3G网络 使用 IMSI向 UE发起寻呼, 该寻呼消息在经过 2G/3G基站时, 2G/3G基站可 以记录发起寻呼的 MSC/VLR信息, 从而在收到 UE使用 IMSI发送的寻呼响 应时, 可以将该寻呼响应路由到 MSC Pool中发起寻呼的 MSC/VLR, 确保下 行 CS业务的顺利进行。 若 MSC/VLR从 SGs接口使用 IMSI进行寻呼, 该寻 呼是发给 MME的, 而不是发给 2G/3G基站, 故 2G/3G基站上无法记录发起 寻呼的 MSC/VLR的信息, MME上可以记录发起寻呼的 MSC/VLR的信息, 但是目前 MME 既没有将该 MSC/VLR 的信息发送给 UE, 也没有发送给 E-UTRAN中的 eNodeB, 进而无法将该 MSC/VLR的信息发送给 UE回落到 2G/3G网络 CS域后的目标 2G/3G基站, 使得该目标 2G/3G基站在收到 UE 使用 IMSI发送的寻呼响应后, 无法确保将该寻呼响应路由到 MSC Pool中发 起寻呼的 MSC/VLR,若路由到 MSC Pool中的其它 MSC/VLR,则该 MSC/VLR 会拒绝该寻呼响应, 从而导致下行 CS业务失败。 本发明实施例提供的一种 MME侧的下行电路交换回落 CSFB的寻呼处理 方法, 该方法应用于 MSC资源池(MSC Pool ) 的场景, 即在 MSC Pool中至 少有两个 MSC/VLR可以为同一位置区域( Location Area ) 内的 UE服务, 如 图 1所示, 该方法包括:
511、 MME接收到 MSC/VLR发送的寻呼请求消息, 其中, 该寻呼请求 消息中包含 UE的 IMSI和该 MSC/VLR的全局核心网标识(Core Network Identifier, CN ID ), 该 MSC/VLR位于 MSC Pool中。
本步骤中,该寻呼请求消息用于指示 MME请求 UE发起 CSFB流程回落 到 CS域网络中的目标 2G/3G基站。
512、 MME通过 UE或者 eNodeB,向目标 2G/3G基站发送该 UE的 IMSI 和该 MSC/VLR的全局 CN ID, 以使该 UE回落到该目标 2G/3G基站后, 目标 2G/3G基站根据该全局 CN ID 为该 UE 确定 MSC/VLR (即发起寻呼的 MSC/VLR )。
具体的, UE回落到该目标 2G/3G基站后, 由于目标 2G/3G基站获知到 了发起寻呼的 MSC/VLR的全局 CN ID, 因此, 该目标 2G/3G基站可以根据 该全局 CN ID为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR )。
本发明实施例中, MME接收到 MSC/VLR发送的寻呼请求消息, 其中, 该寻呼请求消息中包含 UE 的 IMSI 和该 MSC/VLR 的全局 CN ID , 该 MSC/VLR位于为 MSC Pool中; 以及 MME通过 UE或者 eNodeB, 向目标 2G/3G基站发送该 UE的 IMSI和该 MSC/VLR的全局 CN ID, 以使该 UE回 落到目标 2G/3G基站后, 目标 2G/3G基站根据该全局 CN ID为该 UE确定 MSC/VLR„ 由于 MME将 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID 发送给了目标 2G/3G基站, 使得该目标 2G/3G基站在接收到 UE发送的寻呼 响应后, 可以根据该全局 CN ID 为该 UE 确定 MSC/VLR (发起寻呼的 MSC/VLR ), 并将寻呼响应发送给所确定的 MSC/VLR, 从而确保目标 2G/3G 基站能够将 UE发送的寻呼响应路由到发起寻呼的 MSC/VLR,避免了下行 CS 业务失败。 需要说明的是, MSC/VLR的全局 CN ID是由运营商定义的,通过运维方 式进行设置, MSC/VLR的全局 CN ID包括运营商的公共陆地移动网络标识 ( Public Land Mobile Network Identifier, PLMN ID )与 MSC/VLR的 CN ID, MSC/VLR的全局 CN ID可以在运营商 PLMN中唯一的标识一个 MSC/VLR。 典型地, 在部署了 MSC Pool场景下, MSC/VLR会在 SGs寻呼消息中携带自 身的全局 CN ID。
在实施中 , S12中, MME通过 UE向目标 2G/3G基站发送该 UE的 IMSI 和发起寻呼的 MSC/VLR的全局 CN ID , 包括:
MME将包括发起寻呼的全局 CN ID的请求消息发送给 UE , 以使 UE在 回落到目标 2G/3G基站后,将该 UE的 IMSI和该全局 CN ID发送给目标 2G/3G 基站, 其中, MME发送给 UE的请求消息为: 寻呼消息或者 CS业务通知消 息。
下面详细说明 MME发送给 UE的请求消息。
一、 若 UE处于空闲态, MME向 UE发送的请求消息为寻呼消息, 该寻 其中,该寻呼消息包括 MME发送给为该 UE服务的 eNodeB的寻呼消息, 和该 eNodeB发送给 UE的寻呼消息 (如空口寻呼消息)。
具体的 , MME向 eNodeB发送用于寻呼 UE的寻呼消息 , 该寻呼消息中 包含 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID, 以使 eNodeB通过 用于寻呼 UE的空口寻呼消息将 UE的 IMSI和该全局 CN ID发送给该 UE。
该方法下, MME向 eNodeB发送的寻呼消息中的核心网 ( Core Network, CN )域设置为 "CS"; eNodeB向 UE发送的空口寻呼消息中的 CN域设置为 "CS"。
二、 若 UE处于空闲态, MME向 UE发送请求消息之前, 还包括: MME 使用 UE的 S-TMSI向 UE发送分组交换( Packet Switch, PS )域寻呼消息, 以使 UE进入连接态,其中, PS域寻呼消息中的核心网( Core Network, CN ) 域为 PS。 具体的, MME使用 S-TMSI向 eNodeB发送用于寻呼 UE的寻呼消息, 该寻呼消息中的 CN域设置为 "PS"。 相应的, eNodeB使用 S-TMSI向 UE发 送用于寻呼 UE的空口寻呼消息, 该空口寻呼消息中 CN域设置为 "PS"。 相 应的, UE收到该空口寻呼消息后,通过 eNodeB向 MME发送业务请求( Service Request ) 消息进行响应, 此时, 该 UE的状态由空闲态转为连接态。
在 UE进入连接态后, MME向该 UE发送的请求消息为 CS业务通知消 息, 该 CS业务通知消息中除了包含发起寻呼的 MSC/VLR的全局 CN ID, 还 包含寻呼标识(Paging identity )信元,该寻呼标识信元的值用于指示使用 IMSI 进行寻呼响应。
该方式下, 较佳地, 在 UE进入连接态后, MME将寻呼标识信元和发起 寻呼的 MSC/VLR的全局 CN ID发送给该 UE,以使该 UE在回落到目标 2G/3G 基站后, 将该 UE的 IMSI和该全局 CN ID发送给目标 2G/3G基站。
该方式下, MME先将空闲态的 UE转为连接态, 再将寻呼标识信元和发 起寻呼的 MSC/VLR的全局 CN ID发送给该 UE,从而避免增大空口寻呼消息 的长度而增加不必要的寻呼时延与寻呼资源开销。
三、 若 UE处于连接态, MME向 UE发送的请求消息为 CS业务通知消 息, 该 CS业务通知消息中除了包含发起寻呼的 MSC/VLR的全局 CN ID, 还 包含寻呼标识信元, 该寻呼标识信元的值用于指示使用 IMSI进行寻呼响应。
具体的,ΜΜΕ利用已有的底层信令连接向该 UE发送 CS业务通知消息, 该 CS业务通知消息中包含寻呼标识信元和发起寻呼的 MSC/VLR的全局 CN ID。
上述三种方式中 , MME将 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID发送给 UE; UE在接收到 MSC/VLR的全局 CN ID后, 釆用现有的流 程回落到目标 2G/3G基站(具体参见 3GPP TS 23.272协议), 并在回落到目 标 2G/3G基站后, 将该 UE的 IMSI和 MSC/VLR的全局 CN ID发送给目标 2G/3G基站; 目标 2G/3G基站接收到 MSC/VLR的全局 CN ID后, 为该 UE 确定 MSC/VLR (即发起寻呼的 MSC/VLR ) , 并将该 UE使用 IMSI发送的寻 呼响应路由到所确定的 MSC/VLR。
在实施中, S12中, MME通过为 UE服务的 eNodeB, 向目标 2G/3G基 站发送 UE的 IMSI和发起寻呼的全局 CN ID, 包括:
MME将包括 UE的 IMSI和发起寻呼的全局 CN ID的通知消息发送给 eNodeB, 以使该 eNodeB将接收到的 IMSI和全局 CN ID发送给目标 2G/3G基 站, 其中, 该通知消息为: 寻呼消息或者下行传送消息。
下面详细说明 MME发送给为 UE服务的 eNodeB的通知消息。
一、 若 UE处于空闲态, MME向 eNodeB发送的通知消息为寻呼消息, 并在该寻呼消息中包含该 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID。
该方式下, MME向 eNodeB发送的寻呼消息中的 CN域设置为 "CS"。 该方式下, eNodeB在接收到 MME发送的寻呼消息后, 向该 UE发送空 口寻呼消息,该空口寻呼消息中包含该 UE的 IMSI , 该空口寻呼消息中的 CN 域设置为 "CS" , 以触发该 UE发起 CSFB流程回落到目标 2G/3G基站, 该流 程与现有技术相同, 具体参见 3GPP TS 23.272协议。 在该 CSFB 流程中, eNodeB还需要将该 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID发送 给目标 2G/3G基站。
二、 若 UE处于连接态, MME向 eNodeB发送的通知消息为下行传送消 息, 并在该下行传送消息中包含 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID。
该方式下, 较佳地, MME向 eNodeB发送的下行传送消息为下行非接入 层 ( Non Access Stratum, NAS )传送 ( Downlink NAS Transport ) 消息, 该下 行 NAS传送消息中包括 CS业务通知消息、 UE的 IMSI和 MSC/VLR的全局 CN ID。
该方式下, eNodeB在接收到 MME发送的下行传送消息后, 将该下行传 送消息中的 CS业务通知消息发送给 UE, 并将该下行传送消息中的 IMSI和 全局 CN ID发送给目标 2G/3G基站。
上述两种方式中, MME将 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID发送给为该 UE提供服务的 eNodeB; eNodeB在接收到 MSC/VLR的全 局 CN ID后, 釆用现有的流程将 UE回落到目标 2G/3G基站(具体参见 3GPP TS 23.272协议), 并将该 UE的 IMSI和 MSC/VLR的全局 CN ID发送给目标 2G/3G基站; 目标 2G/3G基站建立并保存该 UE的 IMSI和 MSC/VLR的全局 CN ID之间的对应关系; UE在回落到目标 2G/3G基站后, 使用 IMSI向目标 2G/3G基站发送寻呼响应; 目标 2G/3G基站根据已保存的对应关系, 为该 UE 确定 MSC/VLR (即发起寻呼的 MSC/VLR ) , 并将 UE发送的寻呼响应路由到 所确定的 MSC/VLR。
基于同一发明构思,本发明实施例提供的一种 UE侧的下行电路交换回落 CSFB的寻呼处理方法, 该方法应用于 MSC Pool的场景, 即在 MSC Pool中 至少有两个 MSC/VLR可以为同一位置区域内的 UE服务, 如图 2所示, 该方 法包括:
S21、 UE接收 MME发送的 MSC/VLR的全局 CN ID,其中,该 MSC/VLR 位于 MSC Pool中。
其中, MSC/VLR的全局 CN ID是由 MME接收到发起寻呼的 MSC/VLR 发送的寻呼请求后发送给 UE的。
S22、 在 CSFB流程中, UE向目标 2G/3G基站发送该 UE的 IMSI和该 MSC/VLR的全局 CN ID, 以使目标 2G/3G基站根据接收到的全局 CN ID为 该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR )。
本发明实施例中 , UE接收 MME发送的 MSC/VLR的全局 CN ID,其中, 该 MSC/VLR位于为 MSC Pool中; 在 CSFB流程, UE向目标 2G/3G基站发 送该 UE的 IMSI和该 MSC/VLR的全局 CN ID, 以使目标 2G/3G基站根据接 收到的全局 CN ID为该 UE确定 MSC/VLR。 由于 UE向其回落到的 CS域网 络中的目标 2G/3G基站发送了该 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID,从而使目标 2G/3G基站可以根据寻呼响应中包含的全局 CN ID, 为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR ), 并将该寻呼响应路由到所确 定的 MSC/VLR, 避免了下行 CS业务失败。 本发明实施例与上述图 1所示 MME侧的通过 UE在 CSFB流程中向该 UE回落到的 CS域网络中的目标 2G/3G基站, 发送该 UE的 IMSI和发起寻 呼的 MSC/VLR的全局 CN ID的方式对应。 具体的: MME将 UE的 IMSI和 MSC/VLR的全局 CN ID发送给 UE; UE在接收到该全局 CN ID后, 釆用现 有的流程回落到目标 2G/3G基站 (具体参见 3GPP TS 23.272协议), 并在回 落到目标 2G/3G基站后,将该 UE的 IMSI和 MSC/VLR的全局 CN ID发送给 目标 2G/3G基站; 目标 2G/3G基站接收到 MSC/VLR的全局 CN ID后, 为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR ), 并将该 UE使用 IMSI发送的 寻呼响应路由到所确定的 MSC/VLR。
在实施中 , S21中, UE接收 MME发送的 MSC/VLR的全局 CN ID时, 根据 UE当前状态的不同, 进一步又包括以下两种优选的实现方式:
一、 若 UE处于空闲态, UE接收到的请求消息为寻呼消息, 该寻呼消息 中除了包含该 UE的 IMSI, 还包含 MSC/VLR的全局 CN ID。
其中,该寻呼消息包括 MME发送给为该 UE服务的 eNodeB的寻呼消息, 和该 eNodeB发送给 UE的寻呼消息 (如空口寻呼消息)。
该方式下, MME向 eNodeB发送寻呼消息,并在该寻呼消息中包含该 UE 的 IMSI和 MSC/VLR的全局 CN ID ,以使 eNodeB将 UE的 IMSI和该 MSC/VLR 的全局 CN ID发送给该 UE。 eNodeB在接收到 MME发送的携带有 UE的 IMSI 和 MSC/VLR的全局 CN ID的寻呼消息后, 向 UE发送空口寻呼消息, 并在 该空口寻呼消息中携带该 UE的 IMSI和该 MSC/VLR的全局 CN ID。
二、 若 UE处于空闲态, 该 UE在接收到 MME发送的请求消息之前, 还 包括:
UE接收到 MME使用该 UE的 S-TMSI发送的 PS域寻呼消息后,从空闲 态进入连接态, 其中, 该 PS域寻呼消息中的 CN域为 PS。
具体的, MME使用 S-TMSI向 eNodeB发送用于寻呼 UE的寻呼消息, 该寻呼消息中的 CN域设置为 "PS"。 相应的, eNodeB使用 S-TMSI向 UE发 送用于寻呼 UE的空口寻呼消息, 该空口寻呼消息中 CN域设置为 "PS"。 相 应的, UE收到该空口寻呼消息后,通过 eNodeB向 MME发送业务请求( Service Request ) 消息进行响应, 此时, 该 UE的状态由空闲态转为连接态。
该方式下, 在该 UE进入连接态后, 接收 MME发送的请求消息, 该请求 消息为 CS业务通知消息, 该 CS业务通知消息中除了包含 MSC/VLR的全局 CN ID, 还包含寻呼标识信元, 该寻呼标识信元的值用于指示使用 IMSI进行 寻呼响应。
具体为: UE 进入连接态后, 接收 MME 利用已有的底层信令连接向该 UE 发送的 CS 业务通知消息, 该消息中包含寻呼标识信元和发起寻呼的 MSC/VLR的全局 CN ID。
三、 若 UE处于连接态, UE接收到的请求消息为 CS业务通知消息, 该 CS业务通知消息中除了包含 MSC/VLR的全局 CN ID,还包含寻呼标识信元, 该寻呼标识信元的值用于指示使用 IMSI进行寻呼响应。
具体的, UE接收 MME利用已有的底层信令连接向该 UE发送的 CS业 务通知消息, 该消息中包含寻呼标识信元和 MSC/VLR的全局 CN ID。
基于上述任一实施例, UE发起 CSFB流程具体为: 该 UE向 MME发送 扩展业务请求(Extended Service Request ) 消息, 触发 MME发起到 eNodeB 的 CSFB回落流程,整个 CSFB回落流程为现有技术,具体参见 3GPP TS 23.272 协议。
基于上述任一实施例, S22中, UE向目标 2G/3G基站发送该 UE的 IMSI 和 MSC/VLR的全局 CN ID , 包括:
UE向目标 2G/3G基站发送包括该 UE的 IMSI和 MSC/VLR的全局 CN ID 的寻呼响应, 该寻呼响应是对 MME发送的请求消息的响应消息。
基于上述任一实施例, S21中, UE接收 MME发送的请求消息之后, 该 方法还包括: UE緩存接收到的 MSC/VLR的全局 CN ID;
S22中, UE向目标 2G/3G基站发送寻呼响应之后, 该方法还包括: UE 删除已緩存的 MSC/VLR的全局 CN ID。
具体的, 在成功建立 CS信令连接后, UE在目标侧 2G/3G网络 CS域执 行 CS业务; 在该 CS业务结束后,该 UE可以删除緩存的 MSC/VLR全局 CN ID。
基于同一发明构思,本发明实施例提供的一种 eNodeB侧的下行电路交换 回落 CSFB的寻呼处理方法,该方法应用于 MSC Pool的场景,即在 MSC Pool 中至少有两个 MSC/VLR可以为同一位置区域内的 UE服务, 如图 3所示, 该 方法包括:
S31、 eNodeB接收 MME发送的 UE的 IMSI和 MSC/VLR的全局 CN ID, 其中, 该 MSC/VLR位于 MSC Pool中;
S32、 在 CSFB流程中, eNodeB向目标 2G/3G基站, 发送该 UE的 IMSI 和该 MSC/VLR的全局 CN ID ,以使 UE回落到目标 2G/3G基站后,目标 2G/3G 基站根据该全局 CN ID为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR )。
本发明实施例中 eNodeB接收 MME发送的 UE的 IMSI和 MSC/VLR的 全局 CN ID,其中,该 MSC/VLR位于为 MSC Pool中;在 CSFB流程中, eNodeB 向目标 2G/3G基站,发送该 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID, 以使 UE回落到目标 2G/3G基站后, 目标 2G/3G基站根据该全局 CN ID为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR ), 进而能够将该接收到的 UE 发送的寻呼响应路由到所确定的 MSC/VLR, 避免了下行 CS业务失败。
本发明实施例与上述图 1所示 MME侧的通过为 UE服务的 eNodeB在 CSFB流程中向该 UE回落到的 CS域网络中的目标 2G/3G基站, 发送该 UE 的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID的方式对应。 具体的: MME 将 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID发送给为该 UE提供服 务的 eNodeB; eNodeB在接收到 MSC/VLR的全局 CN ID后, 釆用现有的流 程将 UE回落到目标 2G/3G基站(具体参见 3GPP TS 23.272协议 ), 并将该 UE的 IMSI和 MSC/VLR的全局 CN ID发送给目标 2G/3G基站; 目标 2G/3G 基站建立并保存该 UE的 IMSI和 MSC/VLR的全局 CN ID之间的对应关系; UE在回落到目标 2G/3G基站后,使用 IMSI向目标 2G/3G基站发送寻呼响应; 目标 2G/3G基站根据已保存的对应关系, 为该 UE确定 MSC/VLR (即发起寻 呼的 MSC/VLR ), 并将 UE发送的寻呼响应路由到所确定的 MSC/VLR。
在实施中 , S31中, eNodeB接收 MME发送的 UE的 IMSI和 MSC/VLR 的全局 CN ID, 包括:
eNodeB接收 MME发送的包括 UE的 IMSI和 MSC/VLR的全局 CN ID 的通知消息, 该通知消息为: 寻呼消息或者下行传送消息。
下面详细对 eNodeB接收到的通知消息进行说明。
一、若 UE处于空闲态, eNodeB接收 MME发送的通知消息为寻呼消息, 该寻呼消息中包含该 UE的 IMSI和 MSC/VLR的全局 CN ID。
该方式下, MME向 eNodeB发送寻呼消息,并在该寻呼消息中包含该 UE 的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID。
该方式下, eNodeB在接收到 MME发送的寻呼消息后, 向该 UE发送寻 呼消息(如空口寻呼消息), 该寻呼消息中包含该 UE的 IMSI, 该寻呼消息中 的 CN域设置为 "CS" ,以触发该 UE发起 CSFB流程回落到目标 2G/3G基站, 该流程与现有技术相同, 具体参见 3GPP TS 23.272协议。 在该 CSFB流程中, eNodeB将该 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID发送给目标 2G/3G基站。
二、 若 UE处于连接态, eNodeB接收 MME发送的通知消息为下行传送 消息, 该下行传送消息中包含该 UE的 IMSI和 MSC/VLR的全局 CN ID。
该方式下, 较佳地, eNodeB接收到的 MME发送的下行传送消息为下 行非接入层 ( Non Access Stratum, NAS )传送 ( Downlink NAS Transport ) 消 息,该下行 NAS传送消息中包括 CS业务通知消息、 UE的 IMSI和 MSC/VLR 的全局 CN ID。
该方式下, eNodeB在接收到 MME发送的下行传送消息后, 利用已有底 层信令连接将该下行传送消息中包含的 CS业务通知消息发送给 UE, 以触发 该 UE发起 CSFB流程回落到目标 2G/3G基站, 该流程与现有技术相同, 具 体参见 3GPP TS 23.272协议。 在该 CSFB流程中, eNodeB将该 UE的 IMSI 基于上述任一实施例, S32中, eNodeB向目标 2G/3G基站发送该 UE的 IMSI和 MSC/VLR的全局 CN ID, 包括:
eNodeB在 PS切换过程或者重定向过程中将该 IMSI和该全局 CN ID发 送给目标 2G/3G基站。 具体为:
一、 若 eNodeB通过 PS切换过程将 UE回落到目标 2G/3G基站, eNodeB 将该 UE的 IMSI和该 MSC/VLR的全局 CN ID发送给该 eNodeB选择的目标 2G/3G基站。
该方式下, eNodeB可以将 UE的 IMSI和 MSC/VLR的全局 CN ID包含 在原侧 eNodeB到目标 2G/3G基站的透明容器( Transparent container )中传递 给目标 2G/3G基站。
二、 若 eNodeB通过重定向过程将 UE回落到目标 2G/3G基站, eNodeB 将该 UE的 IMSI和该 MSC/VLR的全局 CN ID发送给与该 eNodeB相邻的所 有 2G/3G基站。
该方式下, eNodeB 可以通过无线接入网信息管理 (RAN Information Management, RIM )流程, 将 UE的 IMSI和 MSC/VLR的全局 CN ID发给与 该 eNodeB相邻的所有 2G/3G基站。 其中, eNodeB可以通过网络管理系统的 配置获知与该 eNodeB相邻的所有 2G/3G基站的相关信息, 也可以通过自动 邻区发现流程发现与该 eNodeB相邻的所有 2G/3G基站的相关信息。
基于同一发明构思, 本发明实施例提供的一种 2G/3G基站侧的下行电路 交换回落 CSFB的寻呼处理方法,该方法应用于 MSC Pool的场景,即在 MSC Pool中至少有两个 MSC/VLR可以为同一位置区域内的 UE服务,如图 4所示, 该方法包括:
541、 2G/3G基站从 UE、 eNodeB或者 MSC/VLR接收 UE的 IMSI和 MSC/VLR的全局 CN ID , 其中, 该 MSC/VLR位于 MSC Pool中;
542、 在 CSFB流程中, 当 2G/3G基站为 UE回落到的目标 2G/3G基站, 该 2G/3G基站根据该全局 CN ID为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR )。 本发明实施例中, 2G/3G基站从 UE、 eNodeB或者 MSC/VLR接收该 UE 的 IMSI和该 MSC/VLR的全局 CN ID, 其中, 该 MSC/VLR位于为 MSC Pool 中;在 CSFB流程中,当 2G/3G基站为 UE回落到的 CS域网络中的目标 2G/3G 基站,该 2G/3G基站根据该全局 CN ID为该 UE确定 MSC/VLR。 由于 2G/3G 基站接收到了 UE的 IMSI和 MSC/VLR的全局 CN ID, 在接收到 UE发送的 寻呼响应后,能够根据 UE的 IMSI对应的全局 CN ID为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR ), 从而将该寻呼响应路由到所确定的 MSC/VLR, 避免了下行 CS业务失败。
在实施中, 作为第一种实现方式, S41 中, 2G/3G基站从 UE、 eNodeB 或者 MSC/VLR接收 UE的 IMSI和 MSC/VLR的全局 CN ID, 包括:
2G/3G基站接收 UE发送的寻呼响应, 该寻呼响应包括该 UE的 IMSI和 该 MSC/VLR的全局 CN ID,该寻呼响应是对 MME发送的请求消息的响应消 息, 该请求消息包括该 MSC/VLR的全局 CN ID 。
该方式下, MME发送的请求消息为寻呼消息或 CS业务通知消息。
作为第二种实现方式, S41中, 2G/3G基站从 UE、 eNodeB或者 MSC/VLR 接收 UE的 IMSI和 MSC/VLR的全局 CN ID, 包括:
2G/3G基站接收 eNodeB发送的该 UE的 IMSI和该 MSC/VLR的全局 CN ID, 其中, 该 UE的 IMSI和该 MSC/VLR的全局 CN ID是 MME通过通知消 息发送给 eNodeB的。
具体的, 2G/3G基站接收该 eNodeB在 PS切换流程或者无线接入网信息 管理流程中发送的该 UE的 IMSI和该 MSC/VLR的全局 CN ID。
该方式下, MME发送的通知消息为: 寻呼消息或者下行传送消息。
作为第三种实现方式, S41中, 2G/3G基站从 UE、 eNodeB或者 MSC/VLR 接收 UE的 IMSI和发起寻呼的 MSC/VLR的全局 CN ID, 包括:
2G/3G基站接收 MSC/VLR发送的 UE的 IMSI和其自身的全局 CN ID, 其中, UE的 IMSI和该 MSC/VLR的全局 CN ID是 MSC/VLR接收到针对 UE 的下行 CS业务请求后发送的。 具体的, MSC/VLR接收针对 UE的下行 CS业务请求,其中,该 MSC/VLR 位于为 MSC Pool中; 以及 MSC/VLR将 UE的 IMSI与 MSC/VLR的全局 CN ID, 发送给 2G/3G基站, 以使在 CSFB流程中, 当 2G/3G基站为 UE回落到 的目标 2G/3G基站时, 该目标 2G/3G基站根据该全局 CN ID为该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR )。
该方式下, 由 MSC/VLR将 UE的 IMSI与 MSC/VLR的全局 CN ID, 发 送给自身服务范围内的所有 2G/3G基站(包括 UE回落到的 CS域网络的目标 2G/3G基站); 每个 2G/3G基站均建立并保存该 UE的 IMSI和 MSC/VLR的 全局 CN ID之间的对应关系; UE在回落到目标 2G/3G基站后, 使用 IMSI向 目标 2G/3G基站发送寻呼响应; 目标 2G/3G基站根据已保存的对应关系, 为 该 UE确定 MSC/VLR (即发起寻呼的 MSC/VLR ), 并将 UE发送的寻呼响应 路由到所确定的 MSC/VLR。
该方式下, MSC/VLR将 UE的 IMSI与 MSC/VLR的全局 CN ID, 发送 给 2G/3G基站, 包括:
MSC/VLR通过已有的下行 A/Iu接口消息将该 UE的 IMSI与自身的全局 CN ID, 发送给自身服务范围内的所有 2G/3G基站; 或者
MSC/VLR通过新定义的 A/Iu接口消息将该 UE的 IMSI与自身的全局 CN ID, 发送给自身服务范围内的所有 2G/3G基站。
该方式下, MME请求 UE发起 CSFB流程, 以使 UE回落到目标 2G/3G 基站; 以及 UE在回落到目标 2G/3G基站后, 向目标 2G/3G基站发送寻呼响 应, 以通知目标 2G/3G基站自身已回落到 CS域网络。 该流程与现有技术相 同, 具体参见 3GPP TS 23.272协议。
基于上述任一实现方式, 2G/3G基站接收到 UE的 IMSI和 MSC/VLR的 全局 CN ID之后, 还包括: 2G/3G基站建立并保存 UE的 IMSI与 MSC/VLR 的全局 CN ID的对应关系;
相应的, S42中, 2G/3G基站根据 UE的 IMSI对应的全局 CN ID为该 UE 确定 MSC/VLR,包括: 2G/3G基站根据已保存的对应关系,确定该 UE的 IMSI 所对应的全局 CN ID, 并确定出该全局 CN ID对应的 MSC/VLR (即发起寻呼 的 MSC/VLR )。
进一步地, 2G/3G基站保存 UE的 IMSI与 MSC/VLR的全局 CN ID的对 应关系之后, 还包括:
2G/3G基站启动已配置的定时器;
在该定时器超时时,删除已保存的 UE的 IMSI与 MSC/VLR的全局 CN ID 的对应关系。
其中, 该定时器时长的设置由运营商设置, 或者使用默认值。
基于上述任一实现方式, 该还包括:
在 CSFB 流程中, 目标 2G/3G基站将 UE 的寻呼响应发送给确定出的 MSC/VLR。
下面结合三个具体实施例, 对本发明提供的方法中 MSC/VLR、 MME、 eNodeB、 UE、 2G/3G基站(BSS/RNS ) 的交互进行详细说明。
实施例一、 如图 5所示, 本实施例的流程如下:
1. UE发起联合附着流程或联合位置更新流程, 在 EPC网络 PS域 MME 与 2G/3G网络 CS域 MSC/VLR成功联合注册。
2. MSC/VLR在接收到下行 CS业务请求后,使用 UE的 IMSI发起到 SGs 关联的 MME的寻呼请求 , 该寻呼请求中携带 MSC/VLR的全局 CN ID。
3. MME在收到 MSC/VLR发送的 SGs寻呼请求后, 根据 UE当前的状态 执行不同的操作: 若 UE当前处于空闲态, 则执行步骤 3b或者 3c; 若 UE当 前处于连接态, 则执行步骤 3d。
3b. MME向 eNodeB发送寻呼消息, 该寻呼消息中包含 UE的 IMSI与从 MSC/VLR接收到的 MSC/VLR的全局 CN ID, 该寻呼消息中的 CN域设置为
"cs"。
相应的, eNodeB将 UE的 IMSI与 MSC/VLR的全局 CN ID在空口寻呼 消息中转发给 UE, 该空口寻呼消息中 CN域设置为 "CS"。
3c. MME使用 S-TMSI向 eNodeB发送寻呼消息, 该寻呼消息中的 CN域 设置为 "PS"。
相应的, eNodeB使用 S-TMSI向 UE发送空口寻呼消息, 该空口寻呼消 息中 CN域设置为 "PS"。 UE收到该空口寻呼消息后, 向 MME发送业务请 求( Service Request )消息进行响应。 UE进入连接态后, MME利用已有的底 层信令连接向 UE发送 CS 业务通知消息, 该消息中包含 IMSI 指示与从 MSC/VLR接收到的 MSC/VLR的全局 CN ID。需要说明的是,该步骤中 MME 使用 S-TMSI与 CN域为 "PS"发起寻呼, 主要是先把 UE从空闲态变为连接 态, 以避免直接在寻呼消息中携带 MSC/VLR的全局 CN ID而增加不必要的 寻呼时延与寻呼资源开销, 因为 MSC/VLR的全局 CN ID的长度为 5字节。
3d. MME利用已有的底层信令连接向 UE发送 CS业务通知消息, 该 CS 业务通知消息中包含 IMSI指示与从 MSC/VLR接收到的 MSC/VLR的全局 CN ID。
4. UE緩存接收到的 MSC/VLR的全局 CN ID。
5. UE在接收到 CN域为 "CS" 的寻呼消息或者 CS业务通知消息后, 发 起 CSFB流程。
具体地, UE向 MME发送扩展业务请求 (Extended Service Request ) 消 息, 触发 MME发起到 eNodeB的 CSFB回落流程。 整个 CSFB回落流程为现 有技术, 在此不再赘述。
6. UE在成功回落到 2G/3G网络 CS域后, 由于在步骤 3b中收到了包含 IMSI的寻呼消息,或者在步骤 3c或 3d中收到包含 IMSI指示的 CS业务通知 消息, UE会使用 IMSI进行寻呼响应,同时 UE在寻呼响应中携带緩存的 MSC 全局 CN ID给 BSS/RNS。
7. BSS/RNS在接收到寻呼响应后, 根据该寻呼响应中携带的 MSC/VLR 的全局 CN ID来为 UE选择服务 MSC/VLR。由于 MSC/VLR的全局 CN ID能 够在运营商 PLMN中唯一地标识一个 MSC/VLR,包括在 MSC pool的场景下, 故可以确保 BSS/RNS将寻呼响应路由到发起 SGs 寻呼的 MSC/VLR, 从而避 免下行 CS业务的失败。 8. 在成功建立 CS信令连接后, UE在目标侧 2G/3G网络 CS域执行 CS 业务。 可选地, 在该 CS业务结束后, UE可以删除緩存的 MSC/VLR的全局 CN ID。
实施例二、 如图 6所示, 本实施例的流程如下:
1. UE发起联合附着流程或联合位置更新流程, 在 EPC网络 PS域 MME 与 2G/3G网络 CS域 MSC/VLR成功联合注册。
2. MSC/VLR在接收到下行 CS业务请求后,使用 UE的 IMSI发起到 SGs 关联的 MME的寻呼请求 , 该寻呼请求中携带 MSC/VLR的全局 CN ID。
3. MME在收到 MSC/VLR发送的 SGs寻呼请求消息后, 根据 UE当前的 状态执行不同的操作: 若 UE当前处于空闲态, 则执行步骤 3b; 若 UE当前 处于连接态, 则执行步骤 3c。
3b. MME向 eNodeB发送寻呼消息, 该寻呼消息中包含 UE的 IMSI与从 MSC/VLR接收到的 MSC/VLR的全局 CN ID, 该寻呼消息中的 CN域设置为
"cs"。
相应的, eNodeB向 UE发送空口寻呼消息, 该空口寻呼消息中包含 UE 的 IMSI, 其 CN域设置为 "CS"。
3c. MME 向 eNodeB 发送下行 NAS 传送 ( DOWNLINK NAS TRANSPORT )消息, 该下行 NAS传送消息中包含 CS业务通知消息、 UE的 IMSI与从 MSC/VLR接收到的 MSC/VLR的全局 CN ID。
相应的, eNodeB将 CS业务通知消息转发给 UE, 该 CS业务通知消息中 包含 IMSI指示。
4. eNodeB保存接收到的 UE的 IMSI与 MSC/VLR的全局 CN ID。
5a. UE在接收到 CN域为 "CS"的寻呼消息或者 CS业务通知消息后, 发 起 CSFB流程。
具体地, UE向 MME发送扩展业务请求 (Extended Service Request ) 消 息, 触发 MME发起到 eNodeB的 CSFB回落流程。 整个 CSFB回落流程为现 有技术, 在此不再赘述。 5b.若 eNodeB通过 PS切换将 UE回落到 2G/3G网络 CS域, 则执行步骤 5c; 若 eNodeB通过重定向将 UE回落到 2G/3G网络 CS域, 则执行步骤 5d:
5c. eNodeB在 PS切换流程中将 UE的 IMSI与 MSC/VLR的全局 CN ID 发送给 eNodeB选择的目标侧 BSS/RNS。
具体地, eNodeB将 UE的 IMSI与 MSC/VLR的全局 CN ID包含在原侧 eNodeB到目标侧 BSS/RNS的透明容器( Transparent container )中传递给目标 侧 BSS/RNS。
5d. eNodeB将 UE的 IMSI与 MSC/VLR的全局 CN ID发送给所有邻近的 BSS/RNS。
具体地, eNodeB 通过无线接入网信息管理流程 ( RAN Information Management, RIM )将 UE的 IMSI与 MSC/VLR的全局 CN ID发给所有邻近 的 BSS/RNS。 eNodeB可以通过网络管理系统的配置获知相邻的 BSS/RNS的 位置信息, 也可以通过自动邻区发现流程发现相邻的 BSS/RNS的位置信息。
6. 目标侧 BSS/RNS或者邻近 BSS/RNS緩存 UE的 IMSI与 MSC/VLR的 全局 CN ID。具体地,目标侧 BSS/RNS或者邻近 BSS/RNS可以建立 UE的 IMSI 与 MSC/VLR的全局 CN ID之间的对应关系。
可选地, 目标侧 BSS/RNS或者邻近 BSS/RNS在接收到 UE的 IMSI与 MSC/VLR的全局 CN ID后可以启动一个定时器,在定时器超时时, 可以清除 保存的 UE的 IMSI与 MSC/VLR的全局 CN ID。 该定时器时长的设置由运营 商设置, 或者使用默认值。
7. UE在成功回落到 2G/3G网络 CS域后,因在步骤 3b中收到了包含 IMSI 的寻呼消息, 或者在步骤 3c中收到包含 IMSI指示的 CS业务通知消息, UE 会使用 IMSI进行寻呼响应。
8. BSS/RNS在接收到 IMSI寻呼响应后, 根据 IMSI从保存的 IMSI与 MSC/VLR的全局 CN ID的对应关系中获取 MSC/VLR的全局 CN ID,并根据 MSC/VLR的全局 CN ID来为 UE选择服务 MSC/VLR并将接收到的寻呼响应 发送给所选择的 MSC/VLR。 由于 MSC/VLR 的全局 CN ID 能够在运营商 PLMN中唯一地标识一个 MSC/VLR, 包括在 MSC pool的场景下, 故可以确 保 BSS/RNS将寻呼响应路由到发起 SGs 寻呼的 MSC/VLR, 从而避免下行 CS业务的失败。
9. 在成功建立 CS信令连接后, UE在目标侧 2G/3G网络 CS域执行 CS 业务。
实施例三、 如图 7所示, 本实施例的流程如下:
1. UE发起联合附着流程或联合位置更新流程, 在 EPC网络 PS域 MME 与 2G/3G网络 CS域 MSC/VLR成功联合注册。
2. MSC/VLR在接收到下行 CS业务请求后,使用 UE的 IMSI发起到 SGs 关联的 MME的寻呼请求,该寻呼请求中携带 MSC/VLR的全局 CN ID。同时, MSC/VLR将 UE的 IMSI与 MSC/VLR的全局 CN ID发送给 MSC/VLR服务 范围内的所有 BSS/RNS。 具体地, MSC/VLR通过已有的下行 A/Iu接口消息 或者新定义的 A/Iu接口消息将 UE的 IMSI与 MSC/VLR的全局 CN ID发送给 BSS/RNS, 具体发送方式本发明不做限定。
相应的, BSS/RNS緩存 UE的 IMSI与 MSC/VLR的全局 CN ID。具体地, BSS/RNS可以建立 UE的 IMSI与 MSC/VLR的全局 CN ID之间的对应关系。 可选地, BSS/RNS在接收到 UE的 IMSI与 MSC/VLR的全局 CN ID后可以启 动一个定时器, 在定时器超时时可以清除保存的 UE的 IMSI与 MSC/VLR的 全局 CN ID。 该定时器时长的设置由运营商设置, 或者使用默认值。
3. MME在收到 MSC/VLR发送的 SGs寻呼请求消息后, 根据 UE当前的 状态执行不同的操作: 若 UE当前处于空闲态, 则执行步骤 3b; 若 UE当前 处于连接态, 则执行步骤 3c。
3b. MME向 eNodeB发送寻呼消息, 该寻呼消息中包含 UE的 IMSI, 该 寻呼消息中的 CN域设置为 "CS"。
相应的, eNodeB向 UE发送空口寻呼消息, 该空口寻呼消息中包含 UE 的 IMSI, 其 CN域设置为 "CS" ;
3c. MME利用已有的底层信令连接向 UE发送 CS业务通知消息, 该 CS 业务通知消息中包含 IMSI指示。
4. UE在接收到 CN域为 "CS" 的寻呼消息或者 CS业务通知消息后, 发 起 CSFB流程。
具体地, UE向 MME发送扩展业务请求 (Extended Service Request ) 消 息, 触发 MME发起到 eNodeB的 CSFB回落流程。 整个 CSFB回落流程为现 有技术, 在此不再赘述。
5. UE在成功回落到 2G/3G网络 CS域后,因在步骤 3b中收到了包含 IMSI 的寻呼消息, 或者在步骤 3c中收到包含 IMSI指示的 CS业务通知消息, UE 会使用 IMSI进行寻呼响应。
6. BSS/RNS在接收到 IMSI寻呼响应后, 根据 IMSI从保存的 IMSI与 MSC/VLR的全局 CN ID的对应关系中获取 MSC/VLR的全局 CN ID,并根据 MSC/VLR的全局 CN ID来为 UE选择服务 MSC/VLR并将接收到的寻呼响应 发送给所选择的 MSC/VLR。 由于 MSC/VLR 的全局 CN ID 能够在运营商 PLMN中唯一地标识一个 MSC/VLR, 包括在 MSC pool的场景下, 故可以确 保 BSS/RNS将寻呼响应路由到发起 SGs 寻呼的 MSC/VLR, 从而避免下行 CS业务的失败。
7. 在成功建立 CS信令连接后, UE在目标侧 2G/3G网络 CS域执行 CS 业务。
基于同一发明构思, 本发明实施例还提供了一种移动管理实体 MME, 如 图 8所示, 该 MME包括:
接收单元 81 , 用于接收移动业务交换中心 /拜访位置寄存器 MSC/VLR发 送的寻呼请求消息,其中, 所述寻呼请求消息中包括用户设备 UE的国际移动 用户标识 IMSI和所述 MSC/VLR的全局核心网标识 CN ID, 所述 MSC/VLR 位于 MSC资源池中;
发送单元 82, 用于通过所述 UE或者演进型节点 B eNodeB, 向目标第二 代 /第三代 2G/3G基站发送所述 IMSI和所述全局 CN ID,以使所述 UE回落到 所述目标 2G/3G基站后, 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地,发送单元 82通过所述 UE向所述目标 2G/3G基站发送所述 IMSI 和所述全局 CN ID, 包括:
将包括所述全局 CN ID的请求消息发送给所述 UE, 以使所述 UE在回落 到所述目标 2G/3G基站后, 将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述请求消息为: 寻呼消息或者 CS业务通知消息。
较佳地, 所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识 Paging identity信元, 所述寻呼标 识信元的值用于指示使用 IMSI进行寻呼响应。
较佳地,当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 发送单元 82还用于:
使用所述 UE的 S-TMSI向所述 UE发送分组交换 PS域寻呼消息, 以使 所述 UE进入连接态, 其中, 所述 PS域寻呼消息中的核心网 CN域为 PS。
IMSI和所述全局 CN ID, 包括:
将包括所述 IMSI和所述全局 CN ID的通知消息发送给所述 eNodeB, 以 使所述 eNodeB将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述通知消息为: 寻呼消息或者下行传送消息。
本发明实施例提供的 MME 除了可以釆用上述结构, 还可以釆用其他结 构, 具体为: 上述结构中的接收单元 81的功能可以通过接收机实现; 发送单 元 82可以通过发射机实现; 接收单元 81和发送单元 82的功能还可以通过收 发机, 网卡, 串口等实现。
基于同一发明构思, 本发明实施提供了一种用户设备 UE , 如图 9所示, 该 UE包括:
接收单元 91 , 用于接收移动管理实体 MME发送的移动业务交换中心 /拜 访位置寄存器 MSC/VLR的全局核心网标识 CN ID , 其中, 所述 MSC/VLR位 于 MSC资源池中; 发送单元 92, 用于在电路交换回落 CSFB流程中, 向目标第二代 /第三代 2G/3G基站发送所述 UE的国际移动用户标识 IMSI和所述全局 CN ID, 以使 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 接收单元 91具体用于:
接收所述 MME发送的包括所述全局 CN ID的请求消息, 所述请求消息 为: 寻呼消息或者 CS业务通知消息。
较佳地, 所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识信元,所述寻呼标识信元的值用于 指示使用 IMSI进行寻呼响应。
较佳地,当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 接收单元 91还用于:
接收到所述 MME使用 UE的 S-TMSI发送的分组交换 PS域寻呼消息后, 从空闲态进入连接态, 其中, 所述 PS域寻呼消息中的 CN域为 PS。
较佳地, 发送单元 92具体用于:
向所述目标 2G/3G基站发送包括所述 IMSI和所述全局 CN ID的寻呼响 应 , 所述寻呼响应是对所述 MME发送的请求消息的响应消息。
较佳地, 该 UE还包括:
处理单元 93 ,用于在接收单元 91接收到所述 MME发送的请求消息之后 , 緩存所述 MSC/VLR的全局 CN ID; 以及在发送单元 92向目标 2G/3G基站发 送寻呼响应之后, 删除已緩存的所述 MSC/VLR的全局 CN ID。
本发明实施例提供的 UE除了可以釆用上述结构, 还可以釆用其他结构, 具体为: 上述结构中的接收单元 91的功能可以通过接收机实现; 发送单元 92 的功能可以通过通过发射机实现; 接收单元 91和发送单元 92的功能还可以 通过收发机, 网卡, 串口等器件实现; 处理器单元 93的功能可以通过处理器、 专用处理电路等器件实现。
基于同一发明构思, 本发明实施例还提供了一种演进型节点 B eNodeB, 如图 10所示, 该 eNodeB包括: 接收单元 101 , 用于接收移动管理实体 MME发送的用户设备 UE的国际 移动用户标识 IMSI和移动业务交换中心 /拜访位置寄存器 MSC/VLR的全局核 心网标识 CN ID , 其中, 所述 MSC/VLR位于 MSC资源池中;
发送单元 102, 用于在 CSFB流程中, 向目标第二代 /第三代 2G/3G基站, 发送所述 IMSI和所述全局 CN ID, 以使所述 UE回落到所述目标 2G/3G基站 后,所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 接收单元 101具体用于:
接收所述 MME发送的包括所述 IMSI和所述全局 CN ID的通知消息,所 述通知消息为: 寻呼消息或者下行传送消息。
较佳地, 发送单元 102具体用于:
在分组交换 PS切换过程或者重定向过程中将所述 IMSI和所述全局 CN ID发送至所述目标 2G/3G基站。
本发明实施例提供的 eNodeB除了可以釆用上述结构,还可以釆用其他结 构, 具体为: 上述结构中的接收单元 101 的功能可以通过接收机实现; 发送 单元 102的功能可以通过通过发射机实现; 接收单元 101和发送单元 102的 功能还可以通过收发机, 网卡, 串口等器件实现。
基于同一发明构思, 本发明实施例还提供了一种第二代 /第三代 2G/3G基 站, 如图 11所示, 该 2G/3G基站包括:
接收单元 111 , 用于从用户设备 UE、 演进型节点 B eNodeB或者移动业 务交换中心 /拜访位置寄存器 MSC/VLR接收所述 UE 的国际移动用户标识 IMSI和所述 MSC/VLR的全局核心网标识 CN ID , 其中, 所述 MSC/VLR位 于 MSC 资源池中;
处理单元 112, 用于在 CSFB流程中, 当该 2G/3G基站为所述 UE回落到 的目标 2G/3G基站, 根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
较佳地, 接收单元 111具体用于:
接收所述 UE发送的寻呼响应, 所述寻呼响应包括所述 IMSI和所述全局 CN ID , 所述寻呼响应是对移动管理实体 MME发送的请求消息的响应消息, 所述请求消息包括所述全局 CN ID; 或者
接收所述 eNodeB发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和所 述全局 CN ID是移动管理实体 MME通过通知消息发送给所述 eNodeB的;或 者
接收所述 MSC/VLR发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和 所述全局 CN ID是所述 MSC/VLR接收到针对所述 UE的下行电路交换 CS业 务请求后发送的。
较佳地, 该 2G/3G基站还包括:
发送单元 113 , 用于在所述 CSFB流程中, 将所述 UE的寻呼响应发送给 所述 MSC/VLR。
本发明实施例提供的 2G/3G基站除了可以釆用上述结构, 还可以釆用其 他结构, 具体为: 上述结构中的接收单元 111 的功能可以通过接收机实现; 发送单元 113的功能可以通过通过发射机实现; 接收单元 111和发送单元 113 的功能还可以通过收发机, 网卡, 串口等器件实现; 处理器单元 112 的功能 可以通过处理器、 专用处理电路等器件实现。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或 计算机程序产品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实施例的形式。 而且, 本发明可釆用在一个或多个 其中包含有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘 存储器、 CD-ROM、 光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产 品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图 和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程 和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器, 使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流 程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步 骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了 基本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权 利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种下行电路交换回落 CSFB的寻呼处理方法, 其特征在于, 包括: 移动管理实体 MME 接收到移动业务交换中心 /拜访位置寄存器
MSC/VLR发送的寻呼请求消息, 其中, 所述寻呼请求消息中包括用户设备 UE的国际移动用户标识 IMSI和所述 MSC/VLR的全局核心网标识 CN ID, 所述 MSC/VLR位于 MSC资源池中;
所述 MME通过所述 UE或者演进型节点 B eNodeB , 向目标第二代 /第三 代 2G/3G基站发送所述 IMSI和所述全局 CN ID, 以使所述 UE回落到所述目 标 2G/3G基站后, 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定 所述 MSC/VLR。
2、 如权利要求 1所述的方法, 其特征在于, 所述 MME通过所述 UE向 所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID, 包括:
所述 MME将包括所述全局 CN ID的请求消息发送给所述 UE, 以使所述 UE在回落到所述目标 2G/3G基站后,将所述 IMSI和所述全局 CN ID发送给 所述目标 2G/3G基站, 其中, 所述请求消息为: 寻呼消息或者 CS业务通知 消息。
3、 如权利要求 2所述的方法, 其特征在于,
所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识 Paging identity信元, 所述寻呼标 识信元的值用于指示使用 IMSI进行寻呼响应。
4、 如权利要求 2或 3所述的方法, 其特征在于, 当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 所述方法还包括:
所述 MME使用所述 UE的 S-TMSI向所述 UE发送分组交换 PS域寻呼 消息, 以使所述 UE进入连接态, 其中, 所述 PS域寻呼消息中的核心网 CN 域为 PS。
5、如权利要求 1所述的方法, 其特征在于, 所述 MME通过所述 eNodeB 向所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID , 包括: 所述 MME将包括所述 IMSI和所述全局 CN ID的通知消息发送给所述 eNodeB, 以使所述 eNodeB将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述通知消息为: 寻呼消息或者下行传送消息。
6、 一种下行电路交换回落 CSFB的寻呼处理方法, 其特征在于, 该方法 包括:
用户设备 UE接收移动管理实体 MME发送的移动业务交换中心 /拜访位 置寄存器 MSC/VLR的全局核心网标识 CN ID, 其中, 所述 MSC/VLR位于 MSC资源池中;
在 CSFB流程中 ,所述 UE向目标第二代 /第三代 2G/3G基站发送所述 UE 的国际移动用户标识 IMSI和所述全局 CN ID,以使所述目标 2G/3G基站根据 所述全局 CN ID为所述 UE确定所述 MSC/VLR。
7、 如权利要求 6所述的方法, 其特征在于, 所述 UE接收所述 MME发 送的所述 MSC/VLR的全局 CN ID , 包括:
所述 UE接收所述 MME发送的包括所述全局 CN ID的请求消息, 所述 请求消息为: 寻呼消息或者 CS业务通知消息。
8、 如权利要求 7所述的方法, 其特征在于,
所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识信元,所述寻呼标识信元的值用于 指示使用 IMSI进行寻呼响应。
9、 如权利要求 7或 8所述的方法, 其特征在于, 当所述请求消息为所述 CS业务通知消息且所述 UE处于空闲态, 所述方法还包括:
所述 UE接收到所述 MME使用 UE的 S-TMSI发送的分组交换 PS域寻 呼消息后,从空闲态进入连接态,其中,所述 PS域寻呼消息中的 CN域为 PS。
10、 如权利要求 7-9任一所述的方法, 其特征在于, 所述 UE向所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID, 包括:
所述 UE向所述目标 2G/3G基站发送包括所述 IMSI和所述全局 CN ID的 寻呼响应 , 所述寻呼响应是对所述 ΜΜΕ发送的请求消息的响应消息。
11、如权利要求 10所述的方法, 其特征在于, 所述 UE接收到所述 ΜΜΕ 发送的请求消息之后, 该方法还包括: 所述 UE緩存所述 MSC/VLR的全局 CN ID;
所述 UE向目标 2G/3G基站发送寻呼响应之后, 该方法还包括: 所述 UE 删除已緩存的所述 MSC/VLR的全局 CN ID。
12、 一种下行电路交换回落 CSFB 的寻呼处理方法, 其特征在于, 该方 法包括:
演进型节点 B eNodeB接收移动管理实体 MME发送的用户设备 UE的国 际移动用户标识 IMSI和移动业务交换中心 /拜访位置寄存器 MSC/VLR的全局 核心网标识 CN ID , 其中, 所述 MSC/VLR位于 MSC资源池中;
在 CSFB流程中, 所述 eNodeB向目标第二代 /第三代 2G/3G基站, 发送 所述 IMSI和所述全局 CN ID , 以使所述 UE回落到所述目标 2G/3G基站后, 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
13、 如权利要求 12所述的方法, 其特征在于, 所述 eNodeB接收 MME 发送的所述 IMSI和所述全局 CN ID , 包括:
所述 eNodeB接收所述 MME发送的包括所述 IMSI和所述全局 CN ID的 通知消息, 所述通知消息为: 寻呼消息或者下行传送消息。
14、 如权利要求 12或 13所述的方法, 其特征在于, 所述 eNodeB向所述 目标 2G/3G基站发送所述 IMSI和所述全局 CN ID, 包括:
所述 eNodeB在分组交换 PS切换过程或者重定向过程中将所述 IMSI和 所述全局 CN ID发送至所述目标 2G/3G基站。
15、 一种下行电路交换回落 CSFB的寻呼处理方法, 其特征在于, 包括: 第二代 /第三代 2G/3G基站从用户设备 UE、演进型节点 B eNodeB或者移 动业务交换中心 /拜访位置寄存器 MSC/VLR接收所述 UE的国际移动用户标 识 IMSI和所述 MSC/VLR的全局核心网标识 CN ID , 其中, 所述 MSC/VLR 位于 MSC资源池中; 在 CSFB流程中, 当所述 2G/3G基站为所述 UE回落到的目标 2G/3G基 站, 所述 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
16、 如权利要求 15所述的方法, 其特征在于, 所述 2G/3G基站从 UE、 eNodeB或者 MSC/VLR接收所述 UE的 IMSI和所述 MSC/VLR的全局 CN ID, 包括:
所述 2G/3G基站接收所述 UE发送的寻呼响应, 所述寻呼响应包括所述 IMSI和所述全局 CN ID, 所述寻呼响应是对移动管理实体 MME发送的请求 消息的响应消息, 所述请求消息包括所述全局 CN ID; 或者
所述 2G/3G基站接收所述 eNodeB发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和所述全局 CN ID是移动管理实体 MME通过通知消息发送给所述 eNodeB的; 或者
所述 2G/3G基站接收所述 MSC/VLR发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和所述全局 CN ID是所述 MSC/VLR接收到针对所述 UE的下行电 路交换 CS业务请求后发送的。
17、 如权利要求 15或 16所述的方法, 其特征在于, 还包括:
在所述 CSFB流程中, 所述 2G/3G基站将所述 UE的寻呼响应发送给所 述 MSC/VLR。
18、 一种移动管理实体 MME, 其特征在于, 该 MME包括:
接收单元, 用于接收移动业务交换中心 /拜访位置寄存器 MSC/VLR发送 的寻呼请求消息,其中, 所述寻呼请求消息中包括用户设备 UE的国际移动用 户标识 IMSI和所述 MSC/VLR的全局核心网标识 CN ID , 所述 MSC/VLR位 于 MSC资源池中;
发送单元, 用于通过所述 UE或者演进型节点 B eNodeB, 向目标第二代 / 第三代 2G/3G基站发送所述 IMSI和所述全局 CN ID, 以使所述 UE回落到所 述目标 2G/3G基站后, 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE 确定所述 MSC/VLR。
19、 如权利要求 18所述的 MME, 其特征在于, 所述发送单元通过所述 UE向所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID , 包括: 将包括所述全局 CN ID的请求消息发送给所述 UE, 以使所述 UE在回落 到所述目标 2G/3G基站后, 将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述请求消息为: 寻呼消息或者 CS业务通知消息。
20、 如权利要求 19所述的 MME, 其特征在于,
所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识 Paging identity信元, 所述寻呼标 识信元的值用于指示使用 IMSI进行寻呼响应。
21、 如权利要求 19或 20所述的 MME, 其特征在于, 当所述请求消息为 所述 CS业务通知消息且所述 UE处于空闲态, 所述发送单元还用于:
使用所述 UE的 S-TMSI向所述 UE发送分组交换 PS域寻呼消息, 以使 所述 UE进入连接态, 其中, 所述 PS域寻呼消息中的核心网 CN域为 PS。
22、 如权利要求 18所述的 MME, 其特征在于, 所述发送单元通过所述 eNodeB向所述目标 2G/3G基站发送所述 IMSI和所述全局 CN ID, 包括: 将包括所述 IMSI和所述全局 CN ID的通知消息发送给所述 eNodeB, 以 使所述 eNodeB将所述 IMSI和所述全局 CN ID发送给所述目标 2G/3G基站, 其中, 所述通知消息为: 寻呼消息或者下行传送消息。
23、 一种用户设备 UE , 其特征在于, 该 UE包括:
接收单元, 用于接收移动管理实体 MME发送的移动业务交换中心 /拜访 位置寄存器 MSC/VLR的全局核心网标识 CN ID, 其中, 所述 MSC/VLR位于 MSC资源池中;
发送单元, 用于在电路交换回落 CSFB 流程中, 向目标第二代 /第三代 2G/3G基站发送所述 UE的国际移动用户标识 IMSI和所述全局 CN ID, 以使 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
24、 如权利要求 23所述的 UE, 其特征在于, 所述接收单元具体用于: 接收所述 MME发送的包括所述全局 CN ID的请求消息, 所述请求消息 为: 寻呼消息或者 CS业务通知消息。
25、 如权利要求 24所述的 UE, 其特征在于,
所述寻呼消息还包括所述 IMSI; 或者,
所述 CS业务通知消息还包括寻呼标识信元,所述寻呼标识信元的值用于 指示使用 IMSI进行寻呼响应。
26、 如权利要求 24或 25所述的 UE, 其特征在于, 当所述请求消息为所 述 CS业务通知消息且所述 UE处于空闲态, 所述接收单元还用于:
接收到所述 MME使用 UE的 S-TMSI发送的分组交换 PS域寻呼消息后, 从空闲态进入连接态, 其中, 所述 PS域寻呼消息中的 CN域为 PS。
27、 如权利要求 24-26任一所述的 UE, 其特征在于, 所述发送单元具体 用于:
向所述目标 2G/3G基站发送包括所述 IMSI和所述全局 CN ID的寻呼响 应 , 所述寻呼响应是对所述 MME发送的请求消息的响应消息。
28、 如权利要求 27所述的 UE, 其特征在于, 该 UE还包括:
处理单元, 用于在所述接收单元接收到所述 MME发送的请求消息之后 , 緩存所述 MSC/VLR的全局 CN ID; 以及在所述发送单元向目标 2G/3G基站 发送寻呼响应之后, 删除已緩存的所述 MSC/VLR的全局 CN ID。
29、 一种演进型节点 B eNodeB , 其特征在于 , 该 eNodeB包括: 接收单元,用于接收移动管理实体 MME发送的用户设备 UE的国际移动 用户标识 IMSI和移动业务交换中心 /拜访位置寄存器 MSC/VLR的全局核心网 标识 CN ID, 其中, 所述 MSC/VLR位于 MSC资源池中;
发送单元, 用于在电路交换回落 CSFB 流程中, 向目标第二代 /第三代 2G/3G基站, 发送所述 IMSI和所述全局 CN ID, 以使所述 UE回落到所述目 标 2G/3G基站后, 所述目标 2G/3G基站根据所述全局 CN ID为所述 UE确定 所述 MSC/VLR。
30、 如权利要求 29所述的 eNodeB, 其特征在于, 所述接收单元具体用 于:
接收所述 MME发送的包括所述 IMSI和所述全局 CN ID的通知消息,所 述通知消息为: 寻呼消息或者下行传送消息。
31、 如权利要求 29或 30所述的 eNodeB, 其特征在于, 所述发送单元具 体用于:
在分组交换 PS切换过程或者重定向过程中将所述 IMSI和所述全局 CN ID发送至所述目标 2G/3G基站。
32、 一种第二代 /第三代 2G/3G基站, 其特征在于, 该 2G/3G基站包括: 接收单元, 用于从用户设备 UE、 演进型节点 B eNodeB或者移动业务交 换中心 /拜访位置寄存器 MSC/VLR接收所述 UE的国际移动用户标识 IMSI和 所述 MSC/VLR的全局核心网标识 CN ID,其中,所述 MSC/VLR位于 MSC 资 源池中;
处理单元, 用于在电路交换回落 CSFB流程中, 当该 2G/3G基站为所述 UE回落到的目标 2G/3G基站, 根据所述全局 CN ID为所述 UE确定所述 MSC/VLR。
33、 如权利要求 32所述的 2G/3G基站, 其特征在于, 所述接收单元具体 用于:
接收所述 UE发送的寻呼响应, 所述寻呼响应包括所述 IMSI和所述全局 CN ID , 所述寻呼响应是对移动管理实体 MME发送的请求消息的响应消息, 所述请求消息包括所述全局 CN ID; 或者
接收所述 eNodeB发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和所 述全局 CN ID是移动管理实体 MME通过通知消息发送给所述 eNodeB的;或 者
接收所述 MSC/VLR发送的所述 IMSI和所述全局 CN ID, 所述 IMSI和 所述全局 CN ID是所述 MSC/VLR接收到针对所述 UE的下行电路交换 CS业 务请求后发送的。
34、 如权利要求 32或 33所述的 2G/3G基站, 其特征在于, 该 2G/3G基 站还包括:
发送单元, 用于在所述 CSFB流程中, 将所述 UE的寻呼响应发送给所述 It
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110191509A (zh) * 2019-07-03 2019-08-30 中国联合网络通信集团有限公司 呼叫的建立方法和移动交换中心msc
CN113950013B (zh) * 2020-07-16 2023-03-28 中国移动通信有限公司研究院 一种消息发送、接收方法、设备及介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330639A (zh) * 2007-06-20 2008-12-24 华为技术有限公司 移动交换中心池中实现寻呼的方法及装置
CN102232317A (zh) * 2010-10-26 2011-11-02 华为技术有限公司 移动交换中心池中的寻呼处理方法及装置
CN102714883A (zh) * 2009-12-11 2012-10-03 爱立信(中国)通信有限公司 用于移动通信的网络实体

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101018417B (zh) * 2007-02-14 2010-05-26 华为技术有限公司 Imsi寻呼过程中的核心网选择方法及其装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330639A (zh) * 2007-06-20 2008-12-24 华为技术有限公司 移动交换中心池中实现寻呼的方法及装置
CN102714883A (zh) * 2009-12-11 2012-10-03 爱立信(中国)通信有限公司 用于移动通信的网络实体
CN102232317A (zh) * 2010-10-26 2011-11-02 华为技术有限公司 移动交换中心池中的寻呼处理方法及装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108966291A (zh) * 2017-05-17 2018-12-07 中兴通讯股份有限公司 电路域回落的恢复方法、装置、移动管理实体及用户终端
CN108966291B (zh) * 2017-05-17 2021-06-11 中兴通讯股份有限公司 电路域回落的恢复方法、装置、移动管理实体及用户终端

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