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WO2014000192A1 - Procédé, dispositif et système de commande de redirection - Google Patents

Procédé, dispositif et système de commande de redirection Download PDF

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Publication number
WO2014000192A1
WO2014000192A1 PCT/CN2012/077662 CN2012077662W WO2014000192A1 WO 2014000192 A1 WO2014000192 A1 WO 2014000192A1 CN 2012077662 W CN2012077662 W CN 2012077662W WO 2014000192 A1 WO2014000192 A1 WO 2014000192A1
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WO
WIPO (PCT)
Prior art keywords
base station
redirection
message
user equipment
request message
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/077662
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English (en)
Chinese (zh)
Inventor
陈金桥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201280000852.XA priority Critical patent/CN102870470B/zh
Priority to PCT/CN2012/077662 priority patent/WO2014000192A1/fr
Publication of WO2014000192A1 publication Critical patent/WO2014000192A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology

Definitions

  • the present invention relates to the field of communications, and in particular, to a redirection processing method, device, and system. Background technique
  • the redirection means that the network side informs the user equipment (User Equipment, UE) of the target system cell frequency by using a redirection command, so that the UE searches for the target frequency point and accesses the target system cell.
  • the redirection includes the redirection of the same system and the redirection of the different system.
  • the redirection of the same system refers to the redirection of the UE in the same system, such as the UE from the cell in the Long Term Evolution (LTE) network system.
  • LTE Long Term Evolution
  • 1 Redirect to cell 2; Redirection of a different system means that the UE performs redirection in two different systems.
  • the system currently in which the UE is located is an LTE network system.
  • the UE performs redirection of a different system it can be redirected.
  • GSM Global System of Mobile
  • the redirection processing method, device and system provided by the invention can reduce the redirection failure rate and further improve the user experience.
  • An aspect of the present invention provides a redirection processing method, including:
  • the first device When the number of times of the UE redirection failure exceeds the first threshold, the first device sends a first message to the first base station by using the S1 interface, where the first base station is the serving base station of the UE, and the first message is used to indicate the location.
  • the base station prohibits redirection of the same system and/or different systems to the UE.
  • Another aspect of the present invention provides a redirection processing method. Includes:
  • the second device receives the first message sent by the first device by using the S1 interface, where the first message is used to indicate that the second device prohibits redirection of the same system and/or different system to the UE;
  • the second device prohibits redirection of the same system and/or different system to the UE according to the first message
  • the first message is sent when the first device determines that the number of redirection failures of the UE exceeds a first threshold.
  • Another aspect of the present invention provides a redirection processing method. Includes:
  • the first base station is a serving base station of the UE, and the system to which the SGSN support node belongs is different from the system to which the first base station belongs, and the system to which the second base station belongs and the first base station belong to The system is the same.
  • Another aspect of the present invention provides an apparatus, including: a transmission unit and a processing unit, where: the transmission unit is configured to: when the processing unit determines that the number of UE redirection failures exceeds a first threshold, The first base station sends a first message, where the first base station is a serving base station of the UE, and the first message is used to indicate that the base station prohibits redirection of the same system and/or different system to the UE; / or,
  • the transmitting unit is configured to receive an S1 release request message sent by the first base station, where the reason value included in the S1 translation request message is a redirect;
  • the processing unit is configured to: according to whether a context request message of the UE sent by the serving general packet radio service technology SGSN supporting node or the second base station is received within a period of time after the transmitting unit receives the S1 release request message Determining whether the UE is redirected successfully; wherein the system to which the SGSN supporting node belongs is different from the system to which the first base station belongs, and the system to which the second base station belongs is the same as the system to which the first base station belongs.
  • Another aspect of the present invention provides an apparatus, including: a transmission unit and a processing unit:
  • the transmitting unit is configured to receive, by using an S1 interface, a first message sent by the first device, where the first message is used to indicate that the processing unit prohibits redirection of the UE by the same system and/or different system;
  • the processing unit is configured to prohibit redirection of the UE by the same system and/or different system according to the first message received by the second receiving unit;
  • the first message is sent when the first device determines that the number of redirection failures of the UE exceeds a first threshold.
  • Another aspect of the present invention provides a system, comprising: a mobility management device, wherein:
  • the mobile management device is configured to send, by using the S1 interface, the first message to the first base station, when the number of times of the UE redirection failure exceeds the first threshold, where the first message is used to indicate that the first base station prohibits the The UE performs redirection of the same system and/or different systems; and/or,
  • the mobility management device is configured to receive an S1 release request message sent by the first base station, and according to whether the node supported by the serving general packet radio service technology SGSN is received within a period of time after receiving the S1 release request message Or the context request message of the UE sent by the second base station, determining whether the UE is redirected successfully; wherein the S1 release request message includes a cause value of a redirect, and the system to which the SGSN support node belongs and the first The system to which a base station belongs is different.
  • the first device when the number of times of the UE redirection failure exceeds the first threshold, the first device sends a first message to the first base station by using the S1 interface, where the first base station is the serving base station of the UE, the first The message is used to indicate that the base station prohibits redirection of the UE by the same system and/or different systems, which can reduce the redirection failure rate of the UE and further improve the user experience.
  • FIG. 1 is a schematic flowchart of a redirection processing method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a redirection processing method according to another embodiment of the present invention
  • FIG. 3 is another embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a redirection processing method according to another embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a redirection processing method according to another embodiment of the present invention
  • 6 is a schematic flowchart of a redirection processing method provided by another embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a device according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an apparatus according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a system according to another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a system according to another embodiment of the present invention. detailed description
  • FIG. 1 is a schematic flowchart of a redirection processing method according to an embodiment of the present invention. As shown in FIG. 1, the following steps are included.
  • the first device sends a first message to the first base station by using the S1 interface, where the first base station is a serving base station of the UE, and the first message is used, when the number of times of the UE redirection failure exceeds a first threshold. Instructing the base station to prohibit redirection of the same system and/or different systems to the UE.
  • the number of redirection failures of the UE exceeds a first threshold, where the number of redirections of the different systems of the UE exceeds a first threshold, and the first device sends the first message to the first base station by using the S1 interface, to Instructing the base station to at least prohibit redirection of the UE by different systems.
  • the number of redirection failures of the UE exceeds a first threshold, where the number of redirections of the UE in the same system exceeds a first threshold, and the first device sends a first message to the first eNodeB through the S1 interface. Instructing the base station to at least prohibit the same system redirection of the UE.
  • the number of redirection failures of the UE exceeds a first threshold, where the number of redirections of the same system and the different system of the UE exceeds a first threshold, and the first device sends the first to the first base station by using the S1 interface. a message, to indicate that the base station prohibits redirection of the same system and/or different systems to the UE.
  • the first device may accumulate the number of redirection failures of the UE.
  • the first device in step 101 goes to the first through the S1 interface.
  • the base station sends the first message.
  • the first threshold may be a threshold that is preset by the first device, and specifically, different thresholds may be flexibly set according to different UEs. For example, when the subscription level of the UE1 is higher than the subscription level of the UE2, the first device may set the first threshold with respect to the UE1 to three times, that is, when the number of redirection failures of the UE1 exceeds three times, The first device sends a first message to the first base station through the S1 port, and when the first base station receives the message, prohibits the UE1 from performing the same system and/or different system redirection; the first device may The first threshold of the UE2 is set to be smaller than the first threshold of the UE1, for example, once, that is, when the number of redirection failures of the UE2 exceeds one, the first base station prohibits redirection of the same system and/or different system to the UE2. .
  • the first message may be specifically a first list, where the first list includes: a system identifier, where the system corresponding to the system identifier indicates that the first device prohibits the base station a target system in which the UE performs redirection of the different system; and/or a cell identifier, where the cell corresponding to the cell identifier indicates that the base station prohibits the UE from performing the same system redirection Target cell.
  • the system corresponding to the system identifier is different from the system to which the base station belongs, and the system to which the cell corresponding to the cell identifier belongs is the same as the system to which the base station belongs.
  • the UE is prohibited from performing different system redirection on the system corresponding to the system identifier included in the first list, and/or the UE is prohibited from being
  • the cell corresponding to the cell identifier included in the first list performs the same system redirection.
  • the first list may further include: a system identifier that is different from a system to which the base station belongs, and is supported by all or part of systems supported by the UE, and/or, and a system to which the base station belongs The cell identifier corresponding to all or part of the cells supported by the UE.
  • the system identifier and the cell identifier that are included in the first list may be flexibly set according to different situations.
  • the UE may perform redirection of the different system and redirection of the same system.
  • the number of redirection failures of the UE recorded such as the number of failed UE redirections from the LTE network system to the GSM system, is 5, and the UE is from the LTE network system to the Universal Mobile Telecommunications System (UMTS).
  • the number of failures of the different system redirection is 2, and the first device may include only the system identifier of the GSM, that is, only the first base station prohibits the UE from redirecting the GSM to the GSM system.
  • the redirection of the same system may be based on the number of failures of redirection between different cells, and the first device flexibly sets the first list to improve the user experience.
  • the first list may be specifically a forbidden handover mode list (for example, Forbidden inter RATs), where the forbidden handover system list includes a system identifier and/or a d, a zone identifier, and the system identifier
  • the corresponding system is a target system for the first device to instruct the base station to prohibit the UE from performing redirection of the different system, where the cell corresponding to the cell identifier indicates that the base station prohibits the UE from performing the same The target cell of the system's redirection.
  • the forbidden handover mode list may be included in a handover restriction list (for example, a Handover Restriction List), and the step 101 may be that the first device sends the handover restriction list to the first base station by using an S1 interface, where The first base station is a serving base station of the UE, the handover restriction list includes a forbidden handover system list, and the forbidden handover system list includes a system identifier and/or a cell identifier, where the system corresponding to the system identifier is the first The device instructs the base station to prohibit the UE from performing the redirection of the different system.
  • the cell corresponding to the cell identifier is the target cell that the first device instructs the base station to prohibit the UE from performing the same system redirection.
  • the target system for instructing the base station to prohibit the UE from performing redirection of the different system is configured by the first device indicating that the handover identifier list includes a system identifier and/or a cell identity.
  • the cell corresponding to the cell identifier is a target cell that is instructed by the first device to prohibit the UE from performing the same system redirection, so that the continuity of the UE service can be maintained, and network resources can also be saved.
  • the first message may be an initial context request message (for example: Initial Context Setup Request) or a downlink non-access layer NAS transport message (for example, Downlink Non Access Stratum Transport), that is, And indicating, in the initial context request message or the downlink non-access stratum NAS transport message, that the base station prohibits redirection of the same system and/or different system to the UE.
  • an initial context request message for example: Initial Context Setup Request
  • a downlink non-access layer NAS transport message for example, Downlink Non Access Stratum Transport
  • the step 101 may be that the first device sends the initial context request message or the downlink non-access stratum NAS transmission message to the first base station by using the S1 interface, where the first base station is a serving base station of the UE, and the initial The context request message or the downlink non-access stratum NAS transport message includes a system identifier and/or a cell identifier, where the system corresponding to the system identifier indicates that the base station prohibits the UE from performing redirection of the different system
  • the target system, the cell corresponding to the cell identifier is a target cell that the first device instructs the base station to prohibit the UE from performing the same system redirection.
  • the initial context request message or the downlink non-access stratum NAS transport message carries a system identifier and a cell identifier, where the system corresponding to the system identifier indicates, by the first device, that the base station prohibits the UE A target system that performs redirection of the different system, where the cell corresponding to the cell identifier is a target cell that indicates that the base station prohibits the UE from performing the same system redirection.
  • the base station when the base station is instructed to prohibit the UE from performing redirection, it is not necessary to establish an indication message, and the initial context request message or the downlink non-access stratum NAS transmission message carrying the system identifier and the cell identifier may be used to indicate The base station prohibits the UE from performing redirection. This ensures the continuity of the UE service and thus improves the user experience.
  • the initial context request message or the downlink non-access stratum NAS transport message may specifically be a Tracking Area Update (TAU) process of the UE or a service request of the UE (for example: In the Service Request process, the initial context request message sent by the S1 port or the downlink non-access stratum NAS transmits the message.
  • TAU Tracking Area Update
  • the initial context request message or the downlink non-access stratum NAS transport message may be sent to the base station in the foregoing process. Due to the initial context request message or downlink non-access stratum NAS transmission The message carries a system identifier and a cell identifier, where the system corresponding to the system identifier is a target system that the first device instructs the base station to prohibit the UE from performing redirection of the different system, where the cell corresponding to the cell identifier is the A device instructs the base station to prohibit the UE from performing a target cell redirection with the same system. After the base station receives the initial context request message or the downlink non-access stratum NAS transmission message, the UE is prohibited from performing redirection of the same system and/or different system.
  • the initial context request message or the downlink non-access stratum NAS transport message may specifically carry the prohibition handover system list, where the prohibition handover system list includes a system identifier and/or a cell identifier, and the system identifier
  • the corresponding system is a target system for the first device to instruct the base station to prohibit the UE from performing redirection of the different system, where the cell corresponding to the cell identifier indicates that the base station prohibits the UE from performing the same The target cell of the system's redirection.
  • the initial context request message or the downlink non-access stratum NAS transport message may further include the foregoing handover restriction list, where the handover restriction list includes the prohibition handover system list, and the prohibition handover system list includes a system identifier and/or a cell identifier, where the system corresponding to the system identifier is a target system that indicates, by the first device, that the base station prohibits the UE from performing redirection of a different system, where the cell corresponding to the cell identifier is the A device instructs the base station to prohibit the UE from performing a target cell redirection with the same system.
  • the handover restriction list includes the prohibition handover system list
  • the prohibition handover system list includes a system identifier and/or a cell identifier, where the system corresponding to the system identifier is a target system that indicates, by the first device, that the base station prohibits the UE from performing redirection of a different system, where the cell corresponding to the cell identifier is the A device instructs the base station
  • the first device in this embodiment may be specifically a Mobility Management Entity (MME).
  • MME Mobility Management Entity
  • the first device when the number of times of the UE redirection failure exceeds the first threshold, the first device sends a first message to the first base station by using the S1 interface, where the first base station is the serving base station of the UE, the first The message is used to indicate that the base station prohibits redirection of the UE by the same system and/or different systems, which can reduce the redirection failure rate of the UE and further improve the user experience.
  • FIG. 2 is a schematic flowchart of another redirection processing method according to an embodiment of the present invention, and the following steps are included in FIG. 2 .
  • the first device sends a first message to the first base station by using the S1 interface, where the first base station is a serving base station of the UE, and the first message is used by the first device. Instructing the base station to prohibit redirection of the same system and/or different systems to the UE.
  • Step 201 may specifically adopt the implementation of step 101 described in the above embodiment.
  • the first device sends a second message to the first base station, where the second message is used to indicate that the first base station cancels prohibiting redirection of the UE, or
  • the UE is redirected, where the first timer is sent by the first device to the first base station through the S1 interface.
  • the first message is started.
  • the first timer When the first device sends a first message to the first base station by using the S1 interface, the first timer is started, and the duration of the timer may be different according to different UEs, for example, according to the UE.
  • the subscription level is different, and the duration of setting the timer is different.
  • the first device sends a second message to the first base station, where the second message is used to indicate that the first base station cancels prohibiting redirection of the UE, or indicates that the When receiving the redirection request sent by the UE, the first base station performs redirection on the UE.
  • the redirection of the same system and/or different systems of the UE is prohibited, so the reduced redirection failure rate of the UE.
  • the first timer is started, and if the timer does not exceed the first preset time threshold, the monitoring is performed.
  • the monitoring unit of the timer monitors the timer, when detecting that the timer exceeds a first preset time threshold, the first device sends a second message to the base station, indicating that the first base station cancels the prohibition Redirecting the UE, or instructing the first base station to receive a redirection request sent by the UE, and performing redirection on the UE.
  • the second message may be specifically a second list, where the second list includes: a system identifier, where the system corresponding to the system identifier indicates, by the first device, that the base station allows a target system for performing redirection of a different system by the UE; and/or a cell identifier, where the cell corresponding to the cell identifier is a target cell that indicates that the base station allows the UE to perform redirection of the same system;
  • the second message includes a first list that is empty, and the first list is used to save: a system identifier, where the system corresponding to the system identifier indicates that the base station prohibits the UE from performing the a target system for redirection of a different system; and/or, a cell identifier, the cell identifier
  • the corresponding cell is a target cell that indicates that the base station prohibits the UE from performing the same system redirection.
  • the system corresponding to the system identifier is different from the system to which the base station belongs, and the system to which the cell corresponding to the cell identifier belongs belongs to the same system as the base station.
  • the base station After the first base station receives the second list, the base station allows the UE to perform a system corresponding to the system identifier included in the second list, and/or the cell included in the second list Identifying redirection of the same system and/or different systems of the corresponding cell.
  • the second list includes the GSM corresponding system identifier and the cell identifier corresponding to the LTE network system cell 1
  • the UE may be allowed to perform the weight of the different system relative to the GSM. Orientation, and redirection of the same system relative to cell 1 of the LTE network system.
  • the first list is used to save: a system identifier, and/or a cell identifier; the system corresponding to the system identifier indicates the first device And the target system that prohibits the UE from performing the redirection of the different system, where the cell corresponding to the cell identifier is the target cell that the first device instructs the base station to prohibit the UE from performing the same system redirection.
  • the content of the first list included in the second message is empty, that is, the first device indicates that the base station does not prohibit the UE from performing redirection of the same system and/or different system.
  • the first list may specifically adopt the first list described in the above embodiment.
  • the step 202 may include: when the first timer expires, the first device sends the second list to the first base station, where the second list includes: And/or, the cell identifier; the system corresponding to the system identifier is a target system that indicates, by the first device, that the base station allows the UE to perform redirection of the different system, where the cell corresponding to the cell identifier is the A device instructs the base station to allow the UE to perform a redirected target cell of the same system.
  • the first timer is started when the first device sends a first message to the first base station through the S1 interface.
  • the step 202 may further include: when the first timer expires, the first device sends a first list that is empty to the first base station, where the first list is used. And storing: a system identifier, and/or a cell identifier; the system corresponding to the system identifier is a target system that indicates, by the first device, that the base station prohibits the UE from performing redirection of a different system, where the cell identifier corresponds to The cell indicates, to the first device, the target cell that the base station prohibits the UE from performing the same system redirection.
  • canceling redirection of the UE is prohibited, when the first base station receives Redirecting the UE when the redirect request is sent by the UE.
  • the UE can be prevented from being redirected by the same system and/or the system in a certain period of time.
  • the first timer expires, the UE is not allowed to be redirected, thereby ensuring that the UE's redirection failure rate is reduced.
  • the UE can be redirected to complete the UE's services.
  • the second message may be an initial context request message or a downlink non-access stratum NAS transport message, that is, in the initial context request message or the downlink non-access stratum layer.
  • the NAS transmission message indicates that the first base station cancels the redirection of the UE, or indicates that the first base station is allowed to redirect the UE when receiving the redirection request sent by the UE.
  • the step 202 may include: when the first timer expires, the first device sends the initial context request message or the downlink non-access stratum NAS transmission message to the first base station by using the S1 interface, where the A base station is a serving base station of the UE, and the initial context request message or the downlink non-access stratum NAS transmission message indicates that the first base station cancels prohibiting redirection of the UE, or indicates that the first When the base station receives the redirect request sent by the UE, the base station performs redirection on the UE.
  • the indication message is not required, and the initial context request message or the downlink non-access stratum NAS transmission message may be used to instruct the first base station to cancel the prohibition on the UE.
  • the initial context request message or the downlink non-access stratum NAS transport message carries the second list, or carries a first list with empty content.
  • the base station When the base station receives an initial context request message or a downlink non-access stratum NAS transport message carrying the first list or the first list that is empty, canceling prohibiting redirection of the UE, when receiving When the UE redirects the request, it can control the UE to perform the redirection.
  • the initial context request message or the downlink non-access stratum NAS transmission message sent by the S1 interface in the initial context request message or the downlink non-router in this embodiment is not limited.
  • the initial context request message or the downlink non-access stratum NAS transmission may be performed in the foregoing process.
  • a message is sent to the base station.
  • the above TAU process and service request process and the initial context request message of the S1 port in the TAU process and the service request process are both existing and will not be described in detail herein. In this way, while maintaining the continuity of the UE service, network resources can also be saved.
  • the first device may be an MME
  • the second device may be a serving base station of the UE.
  • the first device sends a second message to the first base station when the first timer expires, and the second message is used to indicate that the first base station is canceled.
  • the redirecting of the UE is prohibited, or the first base station is allowed to redirect the UE when receiving the redirect request sent by the UE. In this way, it is possible to prevent the UE from being redirected by the same system and/or different systems, without affecting the UE's services, and at the same time, reducing the UE redirection failure rate and further improving the user experience.
  • FIG. 3 is a schematic flowchart of another redirection processing method according to an embodiment of the present invention. As shown in FIG. 3, the following steps are included.
  • the first device accumulates the number of times the UE redirection fails. If the first device does not receive the service general packet radio within a period of time after receiving the S1 translation request message sent by the first base station, The Serving General Packet Radio Service Support Node (SGSN) or the Context Request message of the UE sent by the second base station, the first device increases the number of times the UE redirection fails by one.
  • SGSN Serving General Packet Radio Service Support Node
  • Context Request message of the UE sent by the second base station the first device increases the number of times the UE redirection fails by one.
  • the first base station is a serving base station of the UE, and the cause value included in the S1 translation request message is a redirect, and the system to which the SGSN belongs is different from the system to which the first base station belongs.
  • the system to which the two base stations belong is the same as the system to which the first base station belongs.
  • the SGSN of the redirected target system of the different system sends the context request message of the UE to the first device
  • the The base station of the target cell that is redirected by the system sends the context request message of the UE to the first device to obtain related information of the UE saved by the first device.
  • the first device does not receive the context request message of the UE, it determines that the redirection of the UE fails, and step 301 adds 1 to the number of redirection failures of the UE.
  • the period of time is a duration of the second timer, and the second The timer is started when the first device receives the S1 translation request message sent by the first base station.
  • the first device sends a first message to the first base station by using the S1 interface, where the first message is used to indicate that the base station prohibits the same system and the UE from being in the same system. / or redirect from a different system.
  • Step 302 may adopt the implementation manner of step 101 described in the foregoing embodiment, and details are not described herein again.
  • the method may further include the following steps.
  • the first device sends a second message to the first base station, where the second message is used to indicate that the first base station cancels prohibiting redirection of the UE, or
  • the UE is redirected, where the first timer is sent by the first device to the first base station through the S1 interface.
  • the first message is started.
  • Step 303 may specifically adopt the implementation of step 202 described in the above embodiment.
  • the method may further include: if the first device indicates that the first base station cancels prohibiting redirection of the UE, or indicates that the first base station is allowed to receive the UE When the redirect request is sent, the UE is redirected, and the first device clears the accumulated number of failed UE redirection attempts. That is, when step 303 is performed, the first device clears the accumulated number of failed UE redirection attempts.
  • the first device in this embodiment may be specifically an MME.
  • the cornerstone of the foregoing embodiment is increased, and the first device accumulates the number of times the UE redirection fails.
  • the first device sends the first through the S1 interface.
  • the base station sends a first message, where the first message is used to indicate that the base station prohibits redirection of the UE by the same system and/or different system.
  • the first device can accurately control the conditions under which the first message is sent to the first base station through the S1 interface, indicating that the base station prohibits redirection of the same system and/or different systems to the UE, and can reduce UE redirection. Failure rate, and thus improve the user experience.
  • FIG. 4 is a schematic flowchart of another redirection processing method according to an embodiment of the present invention. As shown in FIG. 4, the following steps are included.
  • the second device receives the first message sent by the first device by using the S1 interface, where the first message is used to indicate that the second device prohibits redirection of the same system and/or different systems to the UE.
  • the first message is sent when the first device determines that the number of redirection failures of the UE exceeds a first threshold. For example, when the number of redirection failures of the UE exceeds the first threshold, the first device sends a first message to the second device by using the S1 interface, to indicate that the second device prohibits the same system and/or different Redirection of the system. Similarly, the second device receives the first message sent by the first device through the S1 interface.
  • the foregoing first information may be specifically a first list, where the first list includes: a system identifier, where the system corresponding to the system identifier indicates that the second device prohibits the second device a target system for performing redirection of the different system by the UE; and/or a cell identifier, where the cell corresponding to the cell identifier indicates that the second device prohibits the UE from performing the same system redirection. Target cell.
  • the system corresponding to the system identifier is different from the system to which the second device belongs, and the system to which the cell corresponding to the cell identifier belongs is the same as the system to which the second device belongs.
  • the UE is prohibited from performing different system redirection on the system corresponding to the system identifier included in the first list, and/or the UE pair is prohibited.
  • the cell corresponding to the cell identifier included in the first list performs the same system redirection.
  • the first list may further include: a system identifier that is different from a system to which the second device belongs, and is supported by all or part of systems supported by the UE, and/or The cell identifier of the system to which the second device belongs is the same and is supported by all or part of the cells supported by the UE.
  • the system identifier and the cell identifier included in the first list may be flexibly set by the first device, such as setting the first list to include a system different from the system to which the second device belongs and supported by the UE System identifier, or setting the first list to include a system identifier of all systems different from the system to which the second device belongs and supported by the UE, or setting the first list to include one associated with the second device System identifiers of all systems that are different in system and supported by the UE, and all cell identifiers that are identical to the system to which the second device belongs and supported by the UE.
  • the second device according to the first list, prohibits the UE from performing a target system and/or a cell that is redirected by the system and/or the different system.
  • the step 401 may include: the second device receiving, by using the S1 interface, the first list sent by the first device, where the first list includes a system identifier, and/or a cell identifier;
  • the system corresponding to the system identifier is a target system that indicates that the second device prohibits the UE from performing redirection of the different system.
  • the cell corresponding to the cell identifier is indicated by the first device
  • the second device is configured to prevent the UE from performing the redirection of the target cell.
  • the first list is sent when the first device determines that the number of redirection failures of the UE exceeds a first threshold.
  • the first list may specifically be a forbidden switching system list, where the forbidden switching system list includes a system identifier and/or a ⁇ , an area identifier, where the system corresponding to the system identifier is the a device instructing the second device to prohibit the UE from performing a redirection of the different system, where the cell corresponding to the cell identifier indicates that the second device prohibits the UE from performing the same system Targeted target cell.
  • Step 401 specifically includes:
  • the second device receives the forbidden handover system list sent by the first device by using the S1 interface, where the forbidden handover system list includes a system identifier, and/or a cell identifier, and the system corresponding to the system identifier indicates that the first device indicates The second device prohibits the UE from performing a target system for redirecting the different system.
  • the cell corresponding to the cell identifier is a target cell that the first device instructs the second device to prohibit the UE from performing the same system redirection; wherein the first list is that the first device determines the Sent when the number of redirection failures of the UE exceeds the first threshold.
  • the forbidden handover system list may be included in the handover restriction list, and the step 401 may include: the second device receiving, by using the S1 interface, a handover restriction list sent by the first device, where the handover restriction list includes a prohibition handover mode a list, the forbidden handover system list includes a system identifier, and/or a cell identifier; the system corresponding to the system identifier is a target that the first device instructs the second device to prohibit the UE from performing a redirect of a different system system.
  • the cell corresponding to the cell identifier is a target cell that the first device instructs the second device to prohibit the UE from performing the same system redirection.
  • the system corresponding to the system identifier is used by the first device to instruct the second device to prohibit the UE from performing a different system, because the switch restriction list may be sent in the handover restriction list.
  • the cell corresponding to the cell identifier is a target cell that the first device instructs the second device to prohibit the UE from performing the same system redirection, so that the continuity of the UE service may be Save network resources.
  • the first message may be an initial context request message or a downlink non-access stratum NAS transport message, that is, the second device is in the initial context request message or the downlink non-
  • the access layer NAS transport message receives a redirection indicating that the second device prohibits the same system and/or different system from the UE.
  • the step 401 is specifically that the second device receives, by using the S1 interface, the initial context request message or the downlink non-access stratum NAS transmission message sent by the first device, where the initial context request message or The downlink non-access stratum NAS transport message indicates that the second device prohibits redirection of the same system and/or different system to the UE.
  • the second device receives the indication sent by the first device that the second device prohibits the UE from performing redirection of the same system and/or the different system, and does not need to receive a new message, and may receive an initial in the existing process.
  • the context request message or the downlink non-access stratum NAS transport message, the received initial context request message or the downlink non-access stratum NAS transport message indicates that the second device prohibits the UE from performing the same system and/or different system Orientation. This ensures the continuity of the UE service and thus improves the user experience.
  • the initial context request message or the downlink non-access stratum NAS transmits the transmitted initial context request message or the downlink non-access stratum NAS transport message.
  • the initial context request message or the downlink non-access stratum NAS transport message may be received during the TAU procedure and the service request process.
  • the above TAU process and service request process and the initial context request message of the S1 port in the TAU process and the service request process are both existing and will not be described in detail herein. In this way, while maintaining the continuity of the UE service, network resources can also be saved.
  • the initial context request message or the downlink non-access stratum NAS transport message may specifically carry the prohibition handover system list, where the prohibition handover system list includes a system identifier and/or a cell identifier, and the system identifier
  • the corresponding system is a target system that indicates that the second device prohibits the UE from performing redirection of the different system, where the cell corresponding to the cell identifier indicates that the second device prohibits the second device
  • the initial context request message or the downlink non-access stratum NAS transport message may further include: carrying the handover restriction list, where the handover restriction list includes the prohibition handover system list, and the prohibition handover system
  • the system includes a system identifier and/or a cell identifier, where the system corresponding to the system indicates that the second device prohibits the UE from performing a redirect of the different system, and the cell corresponding to the cell identifier And indicating, to the first device, that the second device prohibits the UE from performing a target cell redirection.
  • the second device prohibits redirection of the UE by the same system and/or different system according to the first message.
  • the second device prohibits different redirection of the same system and/or different systems to the UE.
  • the content of the first message indicates that the second device prohibits the different system System redirection, step 402 prohibits redirection of the UE by different systems.
  • the second device when the second device receives the emergency call of the UE, the second device controls the UE to perform redirection. Therefore, when the UE makes an emergency call, the UE is not prohibited from performing redirection, so that the UE completes the emergency call.
  • the first device may be a Mobility Management Entity ( ⁇ ), and the second device may be a serving base station of the UE.
  • ⁇ Mobility Management Entity
  • the second device receives the first message sent by the first device by using the S1 interface, where the first message is sent when the first device determines that the number of redirection failures of the UE exceeds a first threshold.
  • the second device prohibits redirection of the UE by the same system and/or different system according to the first message. This can reduce the UE's redirection failure rate and thus improve the user experience.
  • FIG. 5 is a schematic flowchart of another redirection processing method according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
  • the second device receives, by using an S1 interface, a first message sent by the first device, where the first message is used to indicate that the second device prohibits redirection of the same system and/or different systems to the UE.
  • the first message is sent when the first device determines that the number of redirection failures of the UE exceeds a first threshold.
  • Step 501 can specifically adopt step 401 described in the above embodiment.
  • the second device prohibits redirection of the UE by the same system and/or different system according to the first message.
  • Step 502 may specifically employ the step 402 described in the above embodiment.
  • the second device receives the second message sent by the first device, and performs redirection to the current UE according to the second message cancellation.
  • the second message is used to indicate that the second device is canceled.
  • the redirecting of the UE is prohibited, or the second device is allowed to redirect the UE when receiving the redirect request sent by the UE.
  • the second device When the second device receives the second message, cancels prohibiting the UE from being redirected, or when the second device receives the second message, when receiving the redirect request sent by the UE, Redirecting the UE. In this way, it is possible to prevent the UE from being redirected only for a period of time, without affecting the UE's services.
  • the second message may be specifically a second list, where the second list includes: a system identifier, where the system corresponding to the system identifier indicates the second device The device allows the UE to perform a target system for redirecting the different system; and/or, the cell identifier, the cell corresponding to the cell identifier indicates that the second device allows the second device to allow the UE to perform the same system
  • the second message includes a first list that is empty, the first list is used to save: a system identifier, where the system corresponding to the system identifier indicates the first device And the second device prohibits the UE from performing the redirection of the different system; and/or the cell identifier, where the cell corresponding to the cell identifier indicates that the second device prohibits the UE from performing the same system The target cell to be redirected.
  • the system corresponding to the system identifier is different from the system to which the second device belongs, and the system to which the cell corresponding to the cell identifier belongs is the same as the system to which the second device belongs.
  • the second device After the second device receives the second list, the second device allows the UE to perform a system corresponding to the system identifier included in the second list, and/or the second list includes The cell identifier corresponds to the redirection of the same system and/or different system of the cell. If the second list includes the GSM corresponding system identifier and the cell identifier corresponding to the LTE network system cell 1, when the second device receives the second list, the UE may be allowed to perform a different system relative to the GSM. Redirection, and redirection of the same system relative to cell 1 of the LTE network system.
  • the first list is used to save: a system identifier, and/or a cell identifier; the system corresponding to the system identifier indicates the first device And the second device is configured to prohibit the UE from performing the redirection of the different system, where the cell corresponding to the cell identifier is the target cell that the first device instructs the second device to prohibit the UE from performing the same system redirection.
  • the content of the first list included in the second message is empty, that is, the first device indicates that the second device does not prohibit the UE from performing redirection of the same system and/or different system.
  • the first list may specifically use the first list described in the above embodiment.
  • the step 503 may include: the second device receiving the second list sent by the first device, where the second list includes: a system identifier, and/or a cell identifier
  • the system corresponding to the system identifier is a target system that indicates that the second device allows the UE to perform redirection of the different system, where the cell corresponding to the cell identifier indicates the first device
  • the second device allows the UE to perform the redirected target cell of the same system, and the second device cancels the redirection of the current UE according to the second list.
  • the step 503 may further include: the second device receiving, by the first device, a first list that is sent by the first device, where the first list is used to save: a system identifier, And/or, the cell identifier; the system corresponding to the system identifier is a target system that is used by the first device to instruct the second device to prohibit the UE from performing redirection of the different system, where the cell corresponding to the cell identifier is The first device instructs the second device to prohibit the UE from performing the redirection of the target cell, and the second device cancels the redirection of the current UE according to the first list in which the content is empty.
  • the redirection is prohibited from being redirected, and when the second device receives the When the redirection request sent by the UE is described, the UE is redirected. In this way, the UE can be prevented from being redirected by the same system and/or the system in a certain period of time.
  • the UE is not forbidden to be redirected, thereby ensuring that the UE's redirection failure rate is reduced. The UE can be redirected to complete the service of the UE.
  • the foregoing second message may be an initial context request message or a downlink non-access stratum NAS transport message, that is, the initial context request message sent by the first device received by the second device.
  • the downlink non-access stratum NAS transport message indicates that the second device cancels the redirection of the UE, or indicates that the second device is allowed to receive the redirection request sent by the UE, The UE performs redirection.
  • the step 503 may include: the second device receiving the initial context request message or the downlink non-access stratum NAS transport message sent by the first device, the initial context request message or the downlink non-access The layer NAS transport message indicates that the second device cancels the redirection of the UE, or indicates that the second device is allowed to receive the redirect request sent by the UE, and redirects the UE. And the second device cancels redirection of the current UE according to the initial context request message or the downlink non-access stratum NAS transmission message.
  • the device When the second device receives the indication that the second device cancels the redirection of the UE, the device does not need to receive a new indication message, and may receive the initial context request message or the downlink non-access layer NAS transmission in the existing process.
  • the message, the received initial context request message or the downlink non-access stratum NAS transport message indicates that the second device cancels prohibiting the UE from performing redirection. This ensures the continuity of the UE service and thus improves the user experience.
  • the initial context request message or the downlink non-access stratum NAS transport message carries the second list, or carries a first list with empty content.
  • the second device When the second device receives the initial context request message or the downlink non-access stratum NAS transport message carrying the first list or the first list that is empty, canceling prohibiting redirection of the UE, when When receiving the redirection request from the UE, the UE can be controlled to perform redirection.
  • the initial context request message or the downlink non-access stratum NAS transmission message sent by the S1 interface in the initial non-relay in the embodiment is used.
  • the first device may be an MME
  • the second device may be a serving base station of the UE.
  • the second device receives the second message sent by the first device, and performs the redirection of the current UE according to the second message cancellation;
  • the UE can not perform the redirection of the same system and/or the different system, and does not affect the service of the UE, and can reduce the UE redirection failure rate and further improve the user experience.
  • FIG. 6 is a schematic flowchart of another redirection processing method according to an embodiment of the present invention, and FIG. 6 includes the following steps.
  • the first device receives the S1 translation request message sent by the first base station, where the cause value included in the S1 translation request message is a redirect.
  • the UE corresponding to the S1 release request message is determined to be redirected.
  • the first device determines whether the UE is redirected successfully according to whether a context request message of the UE sent by the SGSN or the second base station is received within a period of time after receiving the S1 release request message.
  • the first base station is a serving base station of the UE, and the system to which the SGSN belongs is different from the system to which the first base station belongs, and the system to which the second base station belongs is the same as the system to which the first base station belongs.
  • the first device determines that the UE redirects successfully.
  • the first device determines that the UE redirection fails.
  • the SGSN of the redirected target system of the different system sends the context request message of the UE to the first device, and after the redirection of the same system of the UE is successful, the same system
  • the base station of the redirected target cell sends a context request message of the UE to the first device to obtain related information of the UE saved by the first device.
  • the first device does not receive the context request message of the UE, it determines that the redirection of the UE fails.
  • the first device receives the context request message of the UE, it determines that the redirection of the UE is successful.
  • the period of time is a duration of the second timer, and the second timer is started when the first device receives the S1 release request message sent by the first base station.
  • the method further includes: when the first device determines that the UE redirection fails, the number of times the UE redirection fails is increased by one; if the UE redirection fails more than a first threshold, the first device sends a first message to the first base station by using an S1 interface, where the first message is used to indicate that the base station prohibits redirection of the same system and/or different systems to the UE. .
  • the first device sends the first message to the first base station by using the S1 interface.
  • S1 interface For details, refer to step 101 described in the foregoing embodiment.
  • the first specific may be an MME.
  • the first device receives the S1 release request message sent by the first base station, and the reason value included in the S1 release request message is a redirect. And determining, by the first device, whether the UE is successfully redirected according to whether the UE receives the context request message sent by the SGSN or the second base station within a period of time after receiving the S1 release request message. In this way, the UE can successfully determine whether the redirection of the UE is successful, so that the first device sends a first message to the UE serving base station according to the result of the UE redirection, to instruct the base station to prohibit redirection of the UE. This can reduce the UE redirection failure rate and thus improve the user experience. For example, reference may be made to the above embodiments, and details are not described herein.
  • FIG. 7 is a schematic structural diagram of a device according to an embodiment of the present invention. As shown in FIG. 7, the method includes: a transmission unit 71 and a processing unit 72, where:
  • the transmitting unit 71 is configured to: when the processing unit 72 determines that the number of times that the UE redirection fails exceeds the first threshold, sends a first message to the first base station by using the S1 interface, where the first base station is a serving base station of the UE, where the a message is used to indicate that the base station prohibits redirection of the UE by the same system and/or different system; and/or,
  • the transmitting unit 71 is further configured to receive an S1 release request message sent by the first base station, where the reason value included in the S1 translation request message is a redirect.
  • the base station After the first base station receives the first message sent by the transmission unit 71, the base station prohibits redirection of the same system and/or different system to the UE. This can reduce the UE's redirection failure rate and further improve the user experience.
  • the processing unit 72 is configured to: according to the segment after receiving the S1 translation request message at the transmission unit 71 Whether the system receives the context request message sent by the SGSN or the second base station, and determines whether the UE is redirected successfully.
  • the system to which the SGSN belongs is different from the system to which the first base station belongs.
  • the system to which the two base stations belong is the same as the system to which the first base station belongs.
  • the first message may specifically be the first message described in the foregoing embodiment.
  • the device may further include a first timer, where the first timer is started when the transmission unit 71 sends the first message to the first base station by using the S1 interface;
  • the transmitting unit 71 is further configured to: when the first timer expires, send a second message to the first base station, where the second message is used to indicate that the first base station cancels prohibiting redirection of the UE, or indicates The first base station is allowed to redirect the UE when receiving the redirect request sent by the UE.
  • the UE When the first base station receives the second message, cancels the redirection of the UE, or when the base station receives the second message, when receiving the redirection request sent by the UE, The UE performs redirection. In this way, it is possible to prohibit only the UE-segment time from being redirected by the same system and/or different systems, without affecting the UE's services.
  • the second message may specifically be the second message described in the foregoing embodiment.
  • the processing unit 72 may be further configured to accumulate the number of times the UE redirection fails. If the transmitting unit 71 receives the S1 translation request message sent by the first base station, The processing unit 72 does not receive the context request message of the UE sent by the SGSN or the second base station for a period of time. The processing unit 72 increases the number of times the UE redirection fails by one. When the number of redirection failures of the UE that is accumulated by the processing unit 72 exceeds the first threshold, the first message is sent to the first base station through the S1 interface, to indicate that the base station prohibits the same system and/or different System redirection.
  • the processing unit 72 may be further configured to clear the accumulated number of failed UE redirection attempts when the transmitting unit 71 sends the second message to the first base station.
  • the processing unit 72 is further configured to: when the transmission unit 71 receives the context request message of the UE within a period of time after receiving the S1 release request message, determine the UE redirection Successfully; and/or, when the transmission unit 71 does not receive the context request message of the UE within a period of time after receiving the S1 release request message, determining that the UE redirection fails. This can effectively determine whether the UE's redirection is successful.
  • the device may further include: a second timer, the segment The time is the duration of the second timer, and the second timer is started when the transmission unit 71 receives the S1 translation request message sent by the first base station.
  • a second timer allows accurate calculation of time while saving setup power.
  • the device may be specifically a mobility management device.
  • the transmitting unit when the number of times of the UE redirection failure exceeds the first threshold, the transmitting unit sends a first message to the first base station by using the S1 interface, where the first base station is the serving base station of the UE, the first message. It is used to instruct the base station to prohibit redirection of the UE by the same system and/or different systems, which can reduce the redirection failure rate of the UE and further improve the user experience.
  • FIG. 8 is a schematic structural diagram of another device according to an embodiment of the present invention. As shown in FIG. 8, the method includes: a transmission unit 81 and a processing unit 82, where:
  • the transmitting unit 81 is configured to receive, by using the S1 interface, a first message that is sent by the first device, where the first message is used to instruct the processing unit 82 to disable redirection of the same system and/or different systems to the UE.
  • the first message is sent when the first device determines that the number of redirection failures of the UE exceeds a first threshold.
  • the first device when the number of redirection failures of the UE exceeds the first threshold, the first device sends a first message to the second device by using the S1 interface, to instruct the processing unit 82 to disable the same system and/or the UE.
  • the second device receives the first message sent by the first device through the S1 interface.
  • the first message may be the first message provided by the above embodiment, as an optional implementation manner.
  • the processing unit 82 is configured to prohibit redirection of the UE by the same system and/or different system according to the first message received by the second receiving unit.
  • the transmitting unit 81 is further configured to receive the second message sent by the first device, where the second message is used to instruct the processing unit 82 to cancel prohibiting the UE from being performed.
  • the redirection unit redirects the UE when redirecting, or indicating that the transmission unit 81 is allowed to receive the redirection request sent by the UE.
  • the processing unit 82 is further configured to cancel redirection of the UE according to the second message received by the transmission unit 81.
  • processing unit 82 cancels prohibiting redirection of the UE, or when the transmitting unit 81 receives the second message, when receiving the redirect sent by the UE Upon request, processing unit 82 redirects the UE. In this way, it is possible to prohibit only the UE-segment time from performing the same system and/or different redirection operations, without affecting the UE's services.
  • the second message may specifically be the second message described in the foregoing embodiment.
  • the first device may be an MME, and the device may be a base station.
  • the transmitting unit receives the first message sent by the first device by using the S1 interface, where the first message is used to indicate that the processing unit prohibits redirection of the same system and/or different systems to the UE;
  • the first message received by the second receiving unit prohibits redirection of the UE by the same system and/or different system. It can reduce the UE's redirection failure rate and thus improve the user experience.
  • FIG. 9 is a schematic structural diagram of a system according to an embodiment of the present invention. As shown in FIG. 9, the MME 91 is included, where:
  • the MME 91 is configured to send, by using the S1 interface, the first message to the first base station, when the number of times that the UE fails to be redirected exceeds the first threshold, where the first message is used to indicate that the first base station prohibits performing the same for the UE. Redirection of system and/or different systems; and/or,
  • the MME 91 is configured to receive the S1 release request message sent by the first base station, and determine whether the context request message of the UE sent by the SGSN or the second base station is received according to the time period after receiving the S1 release request message. Whether the UE is redirected successfully; wherein the S1 translation request message includes a cause value of a redirect, and the system to which the SGSN belongs is different from the system to which the first base station belongs.
  • the base station After the first base station receives the first message sent by the mobility management entity, the base station prohibits redirection of the same system and/or different system to the UE. This can reduce the UE's redirection failure rate and further improve the user experience.
  • the system may further include a first base station 92, where the first base station 92 is configured to receive the first message, and prohibit the UE from being performed according to the first message. Redirection with the same system and / or different systems.
  • the first base station may be specifically a serving base station of the UE.
  • the system further includes a second base station 93.
  • the second base station 93 is configured to send, when the UE performs redirection, an S1 release message with a cause value being redirected to the MME 91, to inform the MME 91 that the UE is performing redirection.
  • the MME 91 sends a first message to the first base station by using the S1 interface, where the first message is used to indicate that the first base station prohibits the The UE performs redirection of the same system and/or different systems. It can reduce the UE's redirection failure rate and thus improve the user experience.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

Dans un mode de réalisation, la présente invention se rapporte à un procédé de commande de redirection. Le procédé selon l'invention comprend l'étape suivante : quand le nombre d'échecs de redirection d'un UE dépasse un premier seuil, un premier dispositif transmet un premier message à une première station de base via une interface S1. L'invention est caractérisée en ce que : la première station de base est une station de base de desserte de l'UE; et le premier message commande à la station de base d'interdire une redirection de l'UE dans le même système et/ou entre différents systèmes. L'invention se rapporte d'autre part à un dispositif et à un système de commande de redirection. La présente invention est apte à réduire un taux d'échec lié à une redirection. Elle permet de ce fait d'améliorer l'expérience de l'utilisateur.
PCT/CN2012/077662 2012-06-27 2012-06-27 Procédé, dispositif et système de commande de redirection Ceased WO2014000192A1 (fr)

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