WO2017012299A1 - Procédé et dispositif de sélection, pour un rétablissement de cellule dans un scénario de partage de réseau - Google Patents

Procédé et dispositif de sélection, pour un rétablissement de cellule dans un scénario de partage de réseau Download PDF

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Publication number
WO2017012299A1
WO2017012299A1 PCT/CN2016/070383 CN2016070383W WO2017012299A1 WO 2017012299 A1 WO2017012299 A1 WO 2017012299A1 CN 2016070383 W CN2016070383 W CN 2016070383W WO 2017012299 A1 WO2017012299 A1 WO 2017012299A1
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WIPO (PCT)
Prior art keywords
cell
handover
enb
radio link
same
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PCT/CN2016/070383
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English (en)
Chinese (zh)
Inventor
邹俊
许兵舰
储广风
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • the present invention relates to the field of LTE (Long Term Evolution) mobile communication technologies, for example, to a method and an apparatus for selecting a cell to be re-established in network sharing.
  • LTE Long Term Evolution
  • Network sharing in this document involves the sharing of wireless networks between different operators.
  • Two network sharing architectures are defined in the 3GPP TS 23.251 protocol, which are a Multi-Operator Core Network (MOCN) and a Gateway Core Network (GWCN).
  • Virtual network operations can also be implemented based on MOCN or GWCN.
  • virtual network operations based on network sharing have become an effective solution for emerging operators or small and medium-sized operators to quickly enter the telecommunications field and realize low-cost network construction.
  • one base station eNB is connected to multiple core network nodes.
  • the eNB is shared among multiple operators to provide services.
  • the access network and some core network nodes are shared at the same time. Not only eNBs share, but some core network devices (such as Mobility Management Entity (MME)) are also shared among multiple operators to provide services.
  • MME Mobility Management Entity
  • the user equipment UE (User Equipment, UE) in the radio resource control (RRC) connection state initiates a re-establishment process in a scenario where the radio link fails or the handover fails.
  • the UE needs to determine the re-established cell by cell selection before re-establishing the trigger.
  • the Access Stratum (AS) of the UE performs a full-band search according to its own capabilities and settings, searches for the cell with the strongest signal at each frequency point, and reads its system information.
  • the NAS layer determines whether the Public Land Mobile Network (PLMN) search continues; if the UE searches for multiple PLMNs, according to the PLMN Priority determines the final PLMN.
  • PLMN Public Land Mobile Network
  • the PLMN currently selected by the UE may not be the previously registered serving PLMN but the EPLMN, which may cause a re-establishment failure.
  • the embodiment of the invention provides a method and a device for re-establishing a cell in a network sharing, which can ensure that the selected re-established cell meets the requirement of re-establishment success, thereby solving the problem of low re-establishment success rate under network sharing, and improving Re-establish the success rate under network sharing.
  • a method for selecting a cell to be re-established in a network sharing is applied to a user equipment UE, and the method includes:
  • the cell supporting the public land mobile network PLMN information of the radio link failure cell is the re-establishment cell selection in the base station of the cell to which the radio link fails. The highest priority, determining the candidate cell for reestablishing the cell;
  • the cell of the serving PLMN supporting the source cell in the base station to which the source cell belongs when the handover fails is the highest priority of the cell selection.
  • the cell of the serving PLMN supporting the handover target cell in the base station to which the target cell belongs when the handover fails is the second highest priority of the re-establishment cell selection, and the candidate cell of the re-established cell is determined.
  • the method further includes:
  • the serving PLMN information of the radio link failed cell and the cell identifier of the radio link failed cell system information are saved.
  • the cell of the serving PLMN that supports the radio link failure cell in the cell that belongs to the cell that fails the radio link is the highest priority of the re-establishment cell, and the candidate cell of the re-established cell is determined, including:
  • the selected cell and the radio link failing cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the radio link failed cell, and if yes, determine The selected cell is used as a candidate cell for re-establishing a cell.
  • the determining whether the selected cell and the radio link failed cell belong to the same base station eNB include:
  • the eNB identity code of the cell identifier of the selected cell is the same as the eNB identity code of the cell identity of the radio link failure cell, and determining that the selected cell belongs to the same cell as the radio link failure cell If the eNB determines that the difference is not the same, it determines that the selected cell does not belong to the same eNB as the radio link failed cell.
  • the method further includes:
  • the cell that supports the serving PLMN of the handover source cell in the base station to which the source cell belongs when the handover fails is the highest priority of the re-establishment cell selection, and the service of the target cell in the base station to which the target cell belongs when the handover fails
  • the cell of the PLMN is the second highest priority of the re-establishment of the cell
  • the candidate cell for re-establishing the cell is determined, including:
  • the selected cell and the handover source cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the source cell, and if yes, determine The selected cell is used as a candidate cell for re-establishing a cell;
  • the selected cell and the handover target cell belong to the same eNB, it is determined whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the target cell, and if yes, determining that the selected cell is a re-established cell Candidate cell.
  • the determining whether the selected cell belongs to the same eNB as the handover source cell or the handover target cell belongs to the same eNB including:
  • a device for re-establishing a cell in a network sharing is applied to a user equipment UE, and the device includes:
  • a judging module configured to determine a scene that triggers re-establishment
  • the first determining module is configured to: when it is determined that the trigger re-establishment occurs in the radio link failure scenario, the cell of the serving public land mobile network PLMN supporting the radio link failure in the base station of the cell to which the radio link fails is re-established Determining the highest priority of the cell, and determining a candidate cell for re-establishing the cell;
  • the second determining module is configured to: when it is determined that the trigger re-establishment occurs in the scenario of the handover from the source cell to the destination cell, the cell of the serving PLMN supporting the handover source cell in the base station to which the source cell belongs when the handover fails is the re-established cell The highest priority is selected, and the cell of the serving PLMN supporting the target cell in the base station to which the target cell belongs in the handover failure is the second highest priority of the re-establishment cell selection, and the candidate cell of the re-established cell is determined.
  • the device further includes:
  • a storage module configured to: when the first determining module determines that the trigger re-establishment occurs in a radio link failure scenario, save the serving PLMN information of the radio link failed cell and the cell identifier of the radio link failed cell system information.
  • the first determining module includes:
  • the first processing unit is configured to acquire the system information of the selected cell, and determine whether the selected cell and the radio link failed cell belong to the same base station eNB, where the system information of the selected cell carries the corresponding cell identifier;
  • the second processing unit is configured to: if the selected cell and the radio link failing cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell supports the serving PLMN of the radio link failed cell, if yes, determine The selected cell serves as a candidate cell for re-establishing a cell.
  • the first processing unit is configured to:
  • the device further includes:
  • the storage receiving module is configured to: when the second determining module determines that the trigger re-establishment occurs in the handover failure scenario, save the serving PLMN information of the source cell and the cell identifier of the source cell system information when the handover fails, and receive and save at the same time Switching the service PLMN information of the new target cell in the reconfiguration message and the cell identity of the system information of the target cell in the handover reconfiguration message.
  • the second determining module includes:
  • the third processing unit is configured to: acquire system information of the selected cell, determine the selected cell and switch Whether the source cell belongs to the same eNB or belongs to the same eNB as the handover target cell, where the system information of the selected cell carries the corresponding cell identifier;
  • the fourth processing unit is configured to: if the selected cell and the handover source cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the handover source cell, and if yes, determine the selected The cell serves as a candidate cell for reestablishing the cell;
  • the fifth processing unit is configured to: if the selected cell and the handover target cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the handover target cell, and if yes, determine the selected The cell is a candidate cell that re-establishes a cell.
  • the third processing unit includes:
  • the first subunit is configured to: determine whether the eNB identity code of the cell identifier of the selected cell is the same as the eNB identity code of the cell identity of the handover source cell, and if the same, determine that the selected cell belongs to the same cell as the handover source cell. eNB;
  • the second subunit is configured to: determine whether the eNB identity code of the cell identifier of the selected cell is the same as the eNB identity code of the cell identity of the handover target cell, and if the same, determine that the selected cell belongs to the same cell as the handover target cell eNB.
  • Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions for performing the method as described above.
  • the screening of the candidate cells by the foregoing method can ensure that the selected re-established cell meets the requirements of successful re-establishment, thereby solving the problem of low re-establishment success rate under network sharing, improving the success rate of re-establishment under network sharing, and improving The user's feelings under the network sharing.
  • FIG. 1 is a schematic diagram of steps of a method for selecting a cell to be re-established in network sharing according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of processing a cell selection principle according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of successfully re-establishing a cell selection policy to another cell of the base station in the embodiment of the present invention when the radio link fails;
  • FIG. 4 is a schematic diagram of successfully re-establishing a cell selection policy to a source base station according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of successfully re-establishing a cell selection policy to a target station by using an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a device for re-establishing a cell in network sharing according to an embodiment of the present invention.
  • Scenario 1 After the radio link fails in the UE, the selected re-established cell is in the base station to which the radio link failed cell belongs, does not support the serving PLMN of the radio link failed cell, and only supports the EPLMN cell, and is related.
  • the technology cannot implement the update of the PLMN in the eNB, and the eNB cannot synchronously notify the MME of the updated UE context information. Therefore, the UE selecting the cell supporting only the EPLMN may cause the re-establishment rejection.
  • Scenario 2 After the handover failure of the UE occurs, the selected re-established cell does not support the serving PLMN of the source cell or the serving PLMN of the target cell, but supports other EPLMNs, because the cell involved in the handover is different from the PLMN of the re-established cell, and is related.
  • the technology cannot implement the update of the PLMN in the eNB, and the eNB cannot synchronously notify the MME of the updated UE context information. Therefore, the UE selecting the cell supporting only the EPLMN may cause the re-establishment rejection.
  • the related protocol cannot guarantee that the re-established cell selected by the UE under the network sharing meets the requirement of successful re-establishment, thereby failing to ensure the re-establishment success rate under the network sharing.
  • the embodiment of the invention provides a method for selecting a cell to be re-established in network sharing, which is applied to a user setting. Preparing the UE, as shown in FIG. 1, the method includes:
  • Step S101 Determine a scenario that triggers re-establishment
  • Step S102 When it is determined that the trigger re-establishment occurs in the radio link failure scenario, the cell of the serving PLMN supporting the radio link failure cell in the base station of the cell to which the radio link fails (for example, the system message includes the service PLMN information) The cell is determined to re-establish the highest priority of the cell selection, and determines the candidate cell of the re-established cell;
  • Step S103 When it is determined that the trigger re-establishment occurs in the handover failure scenario, in the base station to which the source cell belongs when the handover fails, the cell supporting the serving PLMN of the handover source cell is the highest priority of the re-establishment cell selection, so that when the handover fails. In the base station to which the target cell belongs, the cell of the serving PLMN belonging to the handover target cell is the second highest priority of the re-establishment cell selection, and the candidate cell of the re-established cell is determined.
  • the UE When re-establishment occurs in a network sharing scenario, the UE first decides whether to re-establish due to a radio link failure or re-establishment due to a handover failure. If the result of the decision is: if the re-establishment is caused by the failure of the radio link, the process proceeds to step S102.
  • the UE selects to re-establish a cell, the UE preferentially selects a cell of the serving PLMN supporting the radio link failed cell in the base station to which the cell with the radio link failure belongs, and determines the candidate cell of the re-established cell.
  • the cell in which the serving PLMN information of the source cell is stored in the base station to which the source cell belongs when the handover fails is selected, and the service of the target cell in the base station to which the target cell belongs is selected when the handover fails.
  • the cell of the PLMN determines to re-establish a candidate cell for the cell.
  • the handover reconfiguration message sent by the eNB to the UE carries the service PLMN information of the newly added target cell, and the UE saves the service PLMN information of the target cell added in the handover reconfiguration message and the target in the handover reconfiguration message.
  • the cell identifier of the system information of the cell, and performs a random access procedure, and the random access fails, that is, the handover fails, and then the re-establishment is triggered.
  • the UE first decides to trigger the re-establishment scenario, and then according to the re-establishment of the cell selection policy in the corresponding scenario. If the cell selection is performed and the candidate cell of the re-established cell is determined, the selected re-established cell can meet the requirement of re-establishment success, thereby solving the problem of low re-establishment success rate under network sharing, and improving the network sharing. Establishing a success rate improves the user's perception of network sharing.
  • the method may further include:
  • the cell identifier of the serving PLMN and the radio link failed cell system information of the radio link failed cell is saved.
  • the service PLMN information of the radio link failed cell and the cell identifier of the radio link failed cell system information are saved, and when the cell is selected, the first 20-bit eNB identity of the cell identifier may be utilized.
  • the identification code is used as a basis for determining whether the eNB to which the selected cell belongs and the radio link failed cell are the same eNB.
  • step S102 may include:
  • Step S1021 Obtain system information of the selected cell, and determine whether the selected cell and the radio link failed cell belong to the same eNB, where the system information of the selected cell carries the corresponding cell identifier;
  • Step S1022 If the selected cell and the radio link failing cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the radio link failed cell, and if so, determine the selected cell as The candidate cell of the cell is re-established.
  • the selected cell and the radio link failed cell are the same eNB. If the selected cell and the radio link failing cell belong to the same eNB, it is necessary to determine whether the PLMN list carried in the system information of the selected cell includes the radio.
  • the serving PLMN of the link failure cell if the PLMN list carried in the system information of the selected cell includes the serving PLMN of the radio link failed cell, determining the selected cell as the candidate cell of the re-established cell; if the system information of the selected cell is If the carried PLMN list does not include the serving PLMN of the radio link failed cell, the selected cell is filtered out and the selection is made again.
  • eNB Upon receiving the re-establishment request of the UE, the re-establishment process is performed under the condition that the re-establishment under the network sharing is satisfied.
  • step S1021 determines whether the selected cell and the radio link failed cell belong to the same eNB, and includes:
  • the eNB identity code of the cell identity of the selected cell is the same as the eNB identity code of the cell identity of the radio link failure cell, and if the same, the selected cell and the radio link failure cell belong to the same eNB, if not The same proves that the selected cell does not belong to the same eNB as the radio link failed cell.
  • the identity identification code is compared with the eNB identity code of the cell identifier of the radio link failure cell. If the comparison is consistent, it is proved that the selected cell belongs to the same eNB as the radio link failure cell, and if the comparison is inconsistent, the proof is proved. The selected cell and the radio link failed cell do not belong to the same eNB.
  • the method when it is determined that the trigger re-establishment occurs in the handover failure scenario, the method further includes:
  • the service PLMN information of the source cell and the cell identity of the source cell system information when the handover fails, and the service PLMN information of the target cell added in the handover reconfiguration message and the system information of the handover target cell in the handover reconfiguration message are received and saved. Cell identity.
  • the serving PLMN information of the source cell and the cell identity of the source cell system information when the handover fails, and the handover re-configuration message sent by the eNB are received, where the handover re-allocation message carries the new The serving PLMN information of the target cell and the cell identity of the system information of the target cell.
  • the cell identifier may be used as a eNB to determine the selected cell. The basis of whether the source cell or the target cell is the same eNB.
  • step S103 includes:
  • Step S1031 Obtain system information of the selected cell, and determine whether the selected cell belongs to the same eNB or the same cell as the source cell, and the system information of the selected cell carries the corresponding cell identifier.
  • Step S1032 If the selected cell and the handover source cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the source cell, and if so, determine the selected cell as the re-established cell.
  • Step S1033 If the selected cell and the target cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the target cell, and if yes, determine that the selected cell is a candidate for re-establishing the cell. Community.
  • the system of the selected cell needs to be determined again.
  • the PLMN list carried in the information includes the serving PLMN of the source cell
  • the PLMN list carried in the system information of the selected cell includes the serving PLMN of the source cell, determining the selected cell as the candidate cell of the re-established cell;
  • the PLMN list carried in the system information does not include the serving PLMN of the source cell, and the selected cell is filtered out.
  • the selected cell belongs to the same eNB as the target cell, it is necessary to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the target cell, if the PLMN list carried in the system information of the selected cell includes the target cell.
  • the serving PLMN determines the selected cell as the candidate cell of the re-established cell; if the PLMN list carried in the system information of the selected cell does not include the serving PLMN of the target cell, the selected cell is filtered out.
  • step S1031 determines that the selected cell is the same as the handover source cell.
  • the eNBs are also the same eNB as the target cell, including:
  • the eNB identity code of the cell identifier of the selected cell is the same as the eNB identity code of the cell identity of the source cell, and if the same, the selected cell and the source cell belong to the same eNB;
  • the eNB identity code of the cell identifier of the selected cell is the same as the eNB identity code of the cell identity of the target cell. If the same, the selected cell and the handover target cell belong to the same eNB.
  • FIG. 2 it is a schematic diagram of processing a cell selection principle according to an embodiment of the present invention.
  • the UE selects whether to re-establish the cell: first, whether the selected cell is the same eNB as the radio link failure cell; A cell supporting a serving PLMN of a radio link failed cell.
  • the UE selects whether to re-establish the cell: first, whether the selected cell is the same eNB as the handover source cell or the same eNB as the handover target cell; A cell (including a handover source cell) including a serving PLMN supporting the source cell in the eNB to which the handover source cell belongs is selected; and a cell (including the target cell) supporting the PLMN of the target cell in the eNB to which the target cell belongs is selected.
  • the UE after determining the candidate cell of the re-established cell, the UE needs to perform the re-establishment process in the selected re-established cell. As shown in FIG. 3, when the radio link fails, the UE re-establishes the radio to the radio. A schematic diagram of successful re-establishment of other cells in the base station to which the cell that failed the link belongs.
  • Step S201 In the network sharing scenario, the serving PLMN selected by the eNB for the UE is the PLMN1.
  • the UE fails to perform the radio link failure in the Cell1 of the eNB due to the air interface quality, and the UE is triggered to perform the cell selection and re-establishment process.
  • Step S202 The cell selection policy is re-established according to the network sharing according to the embodiment of the present invention.
  • the UE determines that the selected Cell3 and the radio link failure cell Cell1 are the same eNB, and the Cell3 cell supports the PLMN1.
  • Step S203 The UE initiates a re-establishment request at Cell3.
  • Step S204 The eNB receives the re-establishment request message of the UE in Cell3, retrieves an instance of the corresponding UE by using the UE identity information carried in the message, and determines the PLMN1 by the PLMN, and performs a re-establishment process.
  • Step S205 Send a re-establishment message to the UE.
  • Step S206 After completing the re-establishment process, the UE returns a re-establishment completion message to the eNB, indicating that the re-establishment process under the network sharing is completed.
  • the cell selected by the embodiment of the present invention belongs to the same eNB as the radio link failure cell Cell1, and the selected cell supports the service PLMN1 selected by the eNB for the UE, and the selected cell can be guaranteed.
  • the requirement of re-establishment success is met, thereby solving the problem of low success rate of re-establishment under network sharing, and improving the success rate of re-establishment under network sharing.
  • the UE successfully re-establishes a schematic diagram to the source base station.
  • the eNB1 sends the handover request message to the eNB2, and after the Cell3 of the eNB2 completes the X2 handover or the handover preparation of the S1 handover, the Cell1 cell of the eNB1 receives the handover response message of the eNB2 and delivers the corresponding handover reconfiguration message to the UE.
  • Step S302 After receiving the handover reconfiguration message, the UE saves the service PLMN information of the target cell newly added in the handover reconfiguration message and the cell identifier carried in the system information of the target cell, and performs random access.
  • Step S303 The random access fails, and the UE is triggered to perform a cell selection and re-establishment process.
  • Step S304 Re-establish a cell selection policy according to the network sharing according to the embodiment of the present invention.
  • the UE determines that the selected Cell2 and the source cell Cell1 are the same eNB, and the Cell2 supports the serving PLMN1 of the source cell.
  • Step S305 The UE initiates a re-establishment request in the Cell2 cell.
  • Step S306 The Cell2 of the eNB1 receives the re-establishment request message of the UE, retrieves the instance of the corresponding UE by using the UE identity information carried in the message, and determines the preferred PLMN1 by the PLMN, first cancels the handover process, and then performs the re-establishment process.
  • Step S307 The Cell2 cell of the eNB1 sends a re-establishment message to the UE.
  • Step S308 After completing the re-establishment process, the UE returns a re-establishment completion message to the base station, indicating that the re-establishment process under the network sharing is completed.
  • the cell selected in this embodiment belongs to the same eNB as the handover source cell Cell1, and the selected cell supports the serving PLMN1 of the handover source cell, which can ensure that the selected cell satisfies the re-establishment success.
  • the UE successfully re-establishes a schematic diagram to the target station.
  • Step S401 eNB1 sends a handover request message to eNB2 and completes X2 at Cell3 of eNB2.
  • the Cell1 of the eNB1 receives the handover response message of the eNB2 and delivers the corresponding handover reconfiguration message to the UE.
  • Step S402 After receiving the handover reconfiguration message, the UE saves the service PLMN information of the target cell newly added in the handover reconfiguration message and the cell identifier carried in the system information of the target cell, and performs random access.
  • Step S403 The random access fails, and the UE is triggered to perform a cell selection and re-establishment process.
  • Step S404 According to the re-establishment cell selection policy according to the embodiment of the present invention, the UE determines that the selected Cell2 and the target cell Cell3 of the eNB2 are the same eNB, and the Cell2 cell supports the serving PLMN2 of the target cell.
  • Step S405 The UE initiates a re-establishment request at Cell2.
  • Step S406 The Cell2 cell of the eNB2 receives the re-establishment request message of the UE, retrieves an instance of the corresponding UE by using the UE identity information carried in the message, and determines the preferred PLMN2 by using the PLMN, and after performing the handover process, the re-establishment process is performed. .
  • Step S407 The Cell2 of the eNB2 sends a re-establishment message to the UE.
  • Step S408 After completing the re-establishment process, the UE returns a re-establishment completion message to the base station, indicating that the re-establishment process under the network sharing is completed.
  • the cell selected in this embodiment belongs to the same eNB as the target cell Cell3, and the selected cell supports the serving PLMN2 of the target cell, which also ensures that the selected cell meets the re-establishment success requirement. Therefore, the problem of low success rate of re-establishment under network sharing is solved, and the success rate of re-establishment under network sharing is improved.
  • the embodiment of the present invention further provides a device for re-establishing a cell in a network sharing, which is applied to a user equipment UE.
  • the device includes:
  • the determining module 10 is configured to determine a scenario that triggers re-establishment
  • the first determining module 20 is configured to: when it is determined that the re-establishment occurs in a radio link failure scenario, The cell of the serving PLMN supporting the radio link failure cell in the cell to which the radio link fails is the highest priority of the re-establishment cell selection, and determining the candidate cell of the re-established cell;
  • the second determining module 30 is configured to: when it is determined that the re-establishment occurs in the handover failure scenario, the cell of the serving PLMN supporting the source cell in the base station to which the handover source cell belongs in the handover failure is the highest priority of the re-establishment cell selection, The cell of the serving PLMN including the handover target cell in the base station to which the target cell belongs when the handover fails is the second highest priority of the re-establishment cell selection, and the candidate cell of the re-established cell is determined.
  • the device further includes:
  • the storage module 40 is configured to save the serving PLMN information of the radio link failed cell and the cell identifier of the radio link failed cell system information when the first determining module 20 determines that the trigger re-establishment occurs in the radio link failure scenario.
  • the first determining module 20 includes:
  • the first processing unit 21 is configured to acquire system information of the selected cell, and determine whether the selected cell and the radio link failed cell belong to the same eNB, where the system information of the selected cell carries the corresponding cell identifier;
  • the second processing unit 22 is configured to: if the selected cell and the radio link failing cell belong to the same eNB, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the radio link failed cell, if included, The selected cell is determined as a candidate cell for re-establishing a cell.
  • the first processing unit 21 is configured to:
  • the eNB identity code of the cell identity of the selected cell is the same as the eNB identity code of the cell identity of the radio link failure cell, and if the same, the selected cell and the radio link failure cell belong to the same eNB, if not The same proves that the selected cell does not belong to the same eNB as the radio link failed cell.
  • the device further includes:
  • the storage receiving module 50 is configured to: when the second determining module 30 determines that the trigger re-establishment occurs in the handover failure scenario, save the serving PLMN of the handover source cell and the cell identifier of the handover source cell system information when the handover fails, and receive the same And storing the service PLMN information of the handover target cell newly added in the handover reconfiguration message and the cell identifier of the system information of the handover target cell in the handover reconfiguration message.
  • the second determining module 30 includes:
  • the third processing unit 31 is configured to acquire the system information of the selected cell, and determine whether the selected cell belongs to the same eNB as the source cell or the same eNB, and the system information of the selected cell carries the corresponding cell identifier. ;
  • the fourth processing unit 32 is configured to determine whether the selected cell and the source cell belong to the same eNB, and continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the source cell, and if yes, determine the selected cell as the selected cell. Re-establishing a candidate cell of the cell;
  • the fifth processing unit 33 is configured to: if the selected cell belongs to the same eNB as the target cell, continue to determine whether the PLMN list carried in the system information of the selected cell includes the serving PLMN of the target cell, and if yes, determine that the selected cell is The candidate cell of the cell is re-established.
  • the third processing unit 31 includes:
  • the first sub-unit 311 is configured to determine whether the eNB identity code of the cell identifier of the selected cell is the same as the eNB identity code of the cell identity of the source cell, and if the same, the selected cell and the source cell belong to the same eNB;
  • the second sub-unit 312 is configured to determine whether the eNB identity code of the cell identity of the selected cell is the same as the eNB identity code of the cell identity of the target cell. If the same, the selected cell and the target cell belong to the same eNB.
  • a method for selecting a cell to be re-established in network sharing is triggered by a first decision trigger
  • the scenario is based on the re-establishment of the cell selection policy in the corresponding scenario, the cell selection is performed, and the candidate cell of the re-established cell is determined, so that the selected re-established cell can meet the requirement of re-establishment success, thereby solving the problem of The problem of lower success rate is established, the success rate of re-establishment under network sharing is improved, and the user's feeling under network sharing is improved.
  • the device for re-establishing a cell in the network sharing provided by the embodiment of the present invention is a device applying the above method, and all embodiments of the foregoing method are applicable to the device.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the method of the above embodiment.
  • the embodiment of the invention further provides a user equipment, comprising a memory and at least one processor, wherein the memory stores instructions executable by the processor, the instructions being used to execute the method described in the above embodiments.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Therefore, embodiments of the present invention may be implemented by hardware, software, or in combination with software and hardware. Moreover, embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • 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 such that instructions executed on a computer or other programmable device are provided for implementing one or more processes and/or block diagrams in the flowchart The steps of a function specified in a box or multiple boxes.
  • the screening of the candidate cells by the method in the embodiment of the present invention can ensure that the selected re-established cell meets the requirement of re-establishment success, thereby solving the problem of low re-establishment success rate under network sharing, and improving re-establishment under network sharing.
  • the success rate improves the user's perception of network sharing.

Abstract

L'invention concerne un procédé et un dispositif de sélection, pour un rétablissement de cellule dans un scénario de partage de réseau. Le procédé comprend les étapes consistant à : déterminer un scénario de déclenchement de rétablissement ; lorsque le scénario est un échec d'une liaison sans fil, déterminer une cellule candidate en retenant une cellule ayant des informations de PLMN de desserte prenant en charge la reprise après échec de la liaison sans fil et couverte par un eNB ayant une cellule responsable de l'échec de la liaison sans fil, comme option de priorité maximale pour un rétablissement de cellule ; et lorsque le scénario est un échec de transfert, déterminer une cellule candidate en retenant une cellule ayant des informations PLMN de desserte prenant en charge une cellule source et couverte par un eNB ayant une cellule source responsable de l'échec du transfert, comme option de priorité maximale pour un rétablissement de cellule, et en retenant une cellule ayant des informations PLMN de desserte prenant en charge une cellule cible et couverte par un eNB ayant une cellule cible responsable de l'échec du transfert comme option prioritaire suivante pour un rétablissement de cellule.
PCT/CN2016/070383 2015-07-20 2016-01-07 Procédé et dispositif de sélection, pour un rétablissement de cellule dans un scénario de partage de réseau WO2017012299A1 (fr)

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CN114867075A (zh) * 2022-06-09 2022-08-05 西安紫光展锐科技有限公司 无线网络切换方法、装置、设备、存储介质及产品
CN115623550A (zh) * 2022-12-19 2023-01-17 灿芯技术(深圳)有限公司 基于网络共享的服务小区切换方法、系统及可读存储介质
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