WO2017194021A1 - Procédé et dispositif de commutation - Google Patents

Procédé et dispositif de commutation Download PDF

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Publication number
WO2017194021A1
WO2017194021A1 PCT/CN2017/084251 CN2017084251W WO2017194021A1 WO 2017194021 A1 WO2017194021 A1 WO 2017194021A1 CN 2017084251 W CN2017084251 W CN 2017084251W WO 2017194021 A1 WO2017194021 A1 WO 2017194021A1
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WO
WIPO (PCT)
Prior art keywords
base station
source base
connection
target base
target
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Application number
PCT/CN2017/084251
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English (en)
Chinese (zh)
Inventor
吴昱民
Original Assignee
中兴通讯股份有限公司
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Publication date
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Publication of WO2017194021A1 publication Critical patent/WO2017194021A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers

Definitions

  • the present disclosure relates to the field of wireless communications, and relates to a handover method and apparatus.
  • LTE Long Term Evolution
  • UE User Equipment
  • the method used is to disconnect the source base station first. Then, the handover method of establishing a connection at the target base station (that is, establishment after the interruption, brake-before-make) is established.
  • the use of the above technical solution will result in interruption of the transmission and reception of business data.
  • the 3rd Generation Partnership Project (3GPP) discussion group provides a new scheme for simultaneously maintaining the UE's connection between the source base station and the target base station (ie, first establishing a post-interrupt, make-before-brake).
  • the technical solution of first establishing and then interrupting reduces the UE side handover interruption delay.
  • the failure in the handover process includes the following two situations: one is a radio link failure: including the following three seed types: 1) physical layer out of synchronization; 2) media access control MAC layer random access Failure; 3) The radio link controls the RLC layer to reach the maximum number of retransmission indications.
  • Another case where the handover fails is that the handover has not been successfully completed within the specified time.
  • the source base station is wasted wireless resources, and there is no effective solution at present.
  • An alternative embodiment provides a handover method and apparatus to solve at least the problem that the radio resource of the source base station is wasted due to the connection of the autonomous release source base station after the UE randomly accesses the target base station in the related art.
  • a handover method including: at a user During the process of the device UE being switched from the source base station to the target base station, the source base station sends an indication to the UE to maintain the connection with the source base station; after the source base station receives the notification information sent by the target base station, the source base station releases and a connection of the UE, wherein the notification information is used to notify the source base station to release a connection with the UE.
  • the source base station sends a handover command to the UE, where the handover command carries the indication of maintaining the connection with the source base station, where the handover command is used to indicate that the UE is used by the source base station Switch to the target base station.
  • the source base station receives the notification information that is sent by the target base station; before the source base station releases the connection with the UE, The source base station notifies the UE to release the connection with the source base station.
  • the source base station before the source base station sends an indication to the UE to maintain the connection with the source base station, the source base station sends the indication of maintaining the connection with the source base station to the target base station; and the source base station receives the response information of the target base station, The reply information is used to indicate that the target base station receives the indication that the connection with the source base station is maintained.
  • the source base station maintains a connection with the UE by using a data radio bearer DRB.
  • a handover method including: in a process in which a user equipment UE is handed over from a source base station to a target base station, the target base station receives an indication sent by the source base station to remain connected to the source base station; Before releasing the connection with the source base station, the target base station communicates with the UE by signaling the radio bearer SRB; after the UE releases the connection with the source base station, the target base station carries the DRB and the radio through the SRB and the data radio The UE communicates.
  • the method further includes: the target base station sums the indication of the connection with the source base station in the handover command sent to the source base station, and the target The base station sends a random access response to the UE; the target base station receives the control plane signaling sent by the UE, where the control plane signaling includes: a radio resource control RRC connection reconfiguration complete message; the target base station notification source The base station releases the connection with the UE, and the target base station notifies the UE to release the source base Station connection.
  • a handover method including: when a user equipment UE is handed over from a source base station to a target base station, the UE receives an indication that the source base station sends a connection with the source base station; and receives the indication at the UE After the notification sent by the source base station to instruct the UE to release the connection with the source base station, the UE releases the connection with the source base station.
  • the UE receives the handover command sent by the source base station, where the handover command carries the indication that the source base station is connected, and the handover command is used to indicate that the UE is used by the source base station. Switch to the target base station.
  • the UE remains connected to the source base station by using a data radio bearer DRB before the UE releases the connection with the source base station.
  • the UE receives the handover command sent by the source base station, the UE receives a random access response of the target base station, and the UE reconfigures the signaling radio bearer according to the target base station configuration information in the handover command. SRB.
  • the UE after the UE reconfigures the SRB, the UE establishes an independent media access control MAC entity for the SRB, or the SRB and the DRB of the UE share the same MAC entity.
  • the uplink grant information received by the UE from the target base station is used for data transmission of the SRB, and the UE is from the source.
  • the uplink grant information received by the base station is used for the data transmission of the DRB;
  • the buffer status report BSR that is triggered by the UE and reported to the target base station includes only the cached data of the SRB, and the UE triggers and reports to the source base station.
  • the BSR only includes the cached data of the DRB.
  • the UE sends control plane signaling to the target base station, where the control plane signaling includes: a radio resource control RRC connection reconfiguration complete message; the UE receives a notification message of the target base station or the source base station, The notification message is used to notify the UE to release the connection with the source base station.
  • the control plane signaling includes: a radio resource control RRC connection reconfiguration complete message; the UE receives a notification message of the target base station or the source base station, The notification message is used to notify the UE to release the connection with the source base station.
  • the method further includes: before the UE releases the connection with the source base station, the UE performs data transmission by using the SRB and the target base station; after the UE releases the connection with the source base station, the UE passes the The SRB and the DRB perform data transmission with the target base station.
  • the method further includes: the UE establishing a connection with the target base station by using the target base station configuration information, where the connection with the target base station fails, The UE maintains a connection with the source base station, and the UE releases the configuration information of the target base station, and the UE reports the indication information that the connection with the target base station fails to be established to the source base station.
  • the indication information for establishing a connection failure includes one of the following types: handover failure; random access failure; physical layer RLM detection failure; radio link control RLC retransmission failure.
  • a switching apparatus including: a sending module, configured to send timer configuration information to a UE during a handover of a user equipment UE from a source base station to a target base station Or maintaining an indication of the connection with the source base station; the first release module is configured to: after the source base station receives the notification information sent by the target base station, the source base station releases a connection with the UE, where the notification The information is used to notify the source base station to release the connection with the UE.
  • a switching apparatus including: a first receiving module, configured to receive, during a handover of a user equipment UE from a source base station to a target base station, the first receiving module receives a sending by a source base station Maintaining an indication of the connection with the source base station; the communication module is configured to: before the UE releases the connection with the source base station, the target base station communicates with the UE by using a signaling radio bearer; the communication module is further configured to After the UE releases the connection with the source base station, the target base station communicates with the UE through the SRB and the data radio bearer DRB.
  • the application is performed by the second receiving module, where the second receiving module receives the hold and the source sent by the source base station during the handover of the user equipment UE from the source base station to the target base station.
  • An indication of the connection of the base station where the second release module is configured to receive, by the UE, the source base station, to indicate that the UE is released After the notification of the connection of the source base station, the UE releases the connection with the source base station.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • the source base station sends an indication to the UE to maintain the connection with the source base station;
  • the source base station After the source base station receives the notification information sent by the target base station, the source base station releases the connection with the UE, where the notification information is used to notify the source base station to release the connection with the UE.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the target base station receives an indication sent by the source base station to maintain connection with the source base station;
  • the target base station Before the UE releases the connection with the source base station, the target base station communicates with the UE by signaling the radio bearer SRB; after the UE releases the connection with the source base station, the target base station passes the SRB and the data wireless Carrying the DRB and the UE for communication
  • the storage medium is further arranged to store program code for performing the following steps:
  • the UE receives an indication sent by the source base station to maintain the connection with the source base station;
  • the UE After the UE receives the notification sent by the source base station to instruct the UE to release the connection with the source base station, the UE releases the connection with the source base station.
  • a storage medium comprising a stored program, wherein the program is executed to perform one of the switching methods described above.
  • the source base station in the process of the UE applying for the handover of the base station, sends an indication to the UE and the target base station to maintain the connection with the source base station, and after the source base station receives the notification information sent by the target base station, the source base station releases the connection with the UE.
  • the notification information is used to notify the source base station to release the connection with the UE.
  • the source base station According to the notification information sent by the target base station, the source base station The connection between the UE and the UE that has been switched to the target base station is released in time, and the problem that the radio resource of the source base station is wasted due to the connection of the autonomous release source base station after the UE randomly accesses the target base station in the related art is solved, and the radio resource of the source base station is saved in time. .
  • FIG. 1 is a flowchart of a method for a UE to handover a base station according to the related art
  • FIG. 2 is a structural diagram of a layer 2 entity of a UE according to the related art
  • FIG. 3 is a flowchart 1 of a handover method according to an alternative embodiment of the present disclosure.
  • FIG. 4 is a second flowchart of a handover method according to an alternative embodiment of the present disclosure.
  • FIG. 5 is a flowchart 3 of a handover method according to an alternative embodiment of the present disclosure.
  • FIG. 6 is a flowchart of a timer-based switching method according to an alternative embodiment of the present disclosure.
  • FIG. 7 is a reconfiguration SRB diagram of a timer based handover method, in accordance with an alternative embodiment of the present disclosure.
  • FIG. 8 is a flowchart of a UE start timer of a timer-based handover method according to an alternative embodiment of the present disclosure
  • FIG. 9 is a reconfiguration DRB diagram of a timer based switching method in accordance with an alternative embodiment of the present disclosure.
  • FIG. 10 is a flowchart of a handover indication based handover method according to an alternative embodiment of the present disclosure.
  • FIG. 11 is a flowchart of a process of handover failure according to an alternative embodiment of the present disclosure, as shown in FIG. 11;
  • FIG. 12 is a layer 2 processing diagram of a handover failure according to an alternative embodiment of the present disclosure.
  • FIG. 13 is a diagram of a structure of a switching device applied to a source base station according to an alternative embodiment block diagram
  • FIG. 14 is a structural block diagram of a switching apparatus applied to a target base station according to an alternative embodiment
  • FIG. 15 is a structural block diagram of a handover apparatus applied to a UE according to an alternative embodiment
  • 16 is a structural block diagram of a source base station according to an alternative embodiment
  • 17 is a structural block diagram of a target base station according to an alternative embodiment
  • FIG. 18 is a structural block diagram of a user equipment according to an alternative embodiment
  • FIG. 19 is a structural diagram of a user equipment base station handover system according to an alternative embodiment.
  • the random access procedure refers to a process from when a user sends a random access preamble to try to access the network to establish a basic signaling connection with the network.
  • FIG. 1 is a flowchart of a method for the UE to switch the base station according to the related art. Proceed as follows:
  • step S101 the UE reports a Measurement Report to the network layer.
  • step S102 the source eNB sends a handover request (Handover Request) to the target base station (Target eNB), (Evolved Node B, eNB for short).
  • step S103 the target base station agrees to handover and replies to the Handover Request Acknowledge.
  • step S104 the source base station sends a handover command to the UE, that is, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, and a radio resource control (Radio Resource Control, RRC for short).
  • RRC connection reconfiguration RRC Connection Reconfiguration
  • RRC Radio Resource Control
  • Step S105 the source base station initiates a data forwarding process, sends a number status transmission information (5a.SN Status Transfer) to the target base station, and forwards the data (5b.Data forwarding) to the target base station.
  • a number status transmission information (5a.SN Status Transfer)
  • 5b.Data forwarding 5b.Data forwarding
  • step S106 the UE initiates a random access procedure in the target while maintaining the data transmission with the source base station, and sends a random access request to the target base station through a physical random access channel (Physical Random Access Channel, PRACH for short).
  • a physical random access channel Physical Random Access Channel, PRACH for short.
  • Step S107 The target base station replies to the UE with a random access response message (Random Access Response, RAR for short). After receiving the response, the UE disconnects from the source base station, and reconfigures its layer 2 entity by applying the configuration of the target base station received in S104.
  • RAR Random Access Response
  • Step S108 the UE sends an RRC Connection Reconfiguration Complete (RRC Connection Reconfiguration Complete) to the target base station.
  • Step S109 The target base station instructs the source base station to release the air interface connection with the UE, that is, the UE context release (UE Context Release) message.
  • the UE context release UE Context Release
  • the entity includes: a Packet Data Convergence Protocol (PDCP); a wireless link. Control (Radio Link Control, RLC for short); Medium Access Control (MAC).
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • the UE when the user equipment UE switches the base station, the UE generally switches to the base station because the radio link fails or the UE does not successfully complete the handover of the base station within the specified time. Autonomous release source base station after base station The connection is made, and the source base station remains connected to the UE because the UE does not successfully complete the handover, thereby causing waste of the source base station radio resources.
  • the embodiments of the present disclosure may be implemented in a Long Term Evolution (LTE) system (including but not limited to an LTE system), and the network architecture of the system network may include network side devices (such as base stations) and terminals.
  • LTE Long Term Evolution
  • the network architecture of the system network may include network side devices (such as base stations) and terminals.
  • a method for a handover base station that can be operated on the foregoing network architecture is provided. It should be noted that the operating environment of the foregoing handover base station method provided in the embodiment of the present disclosure is not limited to the foregoing network architecture.
  • FIG. 3 is a flowchart 1 of a switching method according to an alternative embodiment. As shown in FIG. 3, the process includes the following steps:
  • Step S302 in the process of the user equipment UE being handed over from the source base station to the target base station, the source base station sends an indication to the UE to maintain the connection with the source base station;
  • Step S304 after the source base station receives the notification information sent by the target base station, the source base station releases the connection with the UE, where the notification information is used to notify the source base station to release the connection with the UE.
  • the source base station sends a handover command to the UE, where the handover command carries an indication of maintaining a connection with the source base station, where the handover command is used to indicate that the UE is handed over to the target base station by the source base station.
  • the source base station requests the target base station to request the uplink transmission resource configuration information that the UE is connected to the target base station, and after receiving the configuration information, the source base station carries the configuration information in the handover command and sends the configuration information to the UE.
  • the indication of maintaining the connection with the source base station of the embodiment may also be carried in the handover command and sent to the UE.
  • the source base station may further include sending timer configuration information to the UE, where the timer configuration information is used to configure the UE to connect to the source base station.
  • a timer of the duration in this embodiment, the source base station sends a handover command to the UE, where the handover command may further carry timer configuration information, and after the timer expires, the source base station releases the UE with the UE. of connection.
  • the source base station receives the notification information that is sent by the target base station, where the notification information is used to notify the source base station to release the connection with the UE;
  • the UE is notified to release the connection with the source base station.
  • the source base station first forwards the notification information to the UE, and then releases the connection with the UE.
  • the target base station autonomously notifies the source base station to release the connection with the UE. For the UE side, the target base station Or the source base station also notifies the UE side to release the connection with the source base station.
  • the source base station releases the connection with the UE in two ways.
  • the method is to receive the notification information sent by the target base station to the source base station, where the notification information is used to indicate that the source base station releases the connection with the UE.
  • the other way is to set the timer configuration information, and after the timer expires, the source base station releases the connection with the UE.
  • the two modes are adopted to ensure complete release between the source base station and the UE during the buffering time to save the source base station radio resources.
  • the timer configuration information may set the retention time of the connection between the source base station and the UE, and the actual timer configuration information may be set according to actual experience.
  • the source base station before the source base station sends an indication to the UE to maintain the connection with the source base station, the source base station sends an indication of maintaining the connection with the source base station to the target base station; the source base station receives the target base station reply information, where the reply The information is used to indicate that the target base station receives the indication that the connection with the source base station is maintained.
  • the target base station performs corresponding operations according to the foregoing configuration information.
  • the source base station in the process of the user equipment UE being switched from the source base station to the target base station, the source base station sends the timer configuration information to the UE or maintains the indication of the connection with the source base station, or the source base station may simultaneously send the timer configuration information to the UE. And an indication to maintain connection with the source base station.
  • the timer configuration information and the indication of maintaining the connection with the source base station may be carried in the handover command.
  • the data radio bearer is sent before the UE releases the connection with the source base station.
  • the DRB remains connected to the UE.
  • FIG. 4 is a flowchart 2 of a handover method according to an alternative embodiment. As shown in FIG. 4, the process includes the following steps:
  • Step S402 in the process of the user equipment UE being handed over from the source base station to the target base station, the target base station receives an indication sent by the source base station to maintain the connection with the source base station;
  • Step S404 Before the UE releases the connection with the source base station, the target base station communicates with the UE by using the SRB; after the UE releases the connection with the source base station, the target base station communicates with the UE by using the SRB and the DRB.
  • the embodiment corresponds to the foregoing embodiment before the connection between the source base station and the source base station is instructed to release the connection between the UE and the source base station. It should be noted that, if the target base station receives the timer configuration information sent by the source base station, the timing is The connection to the UE before and after the timeout is different. .
  • the method further includes: the target base station sends a random access response to the UE; and the target base station receives the control plane signaling sent by the UE, where The control plane signaling includes: an RRC connection reconfiguration complete message; the target base station notifies the source base station to release the connection with the UE, and the target base station notifies the UE to release the connection with the source base station.
  • the target base station when the target base station does not receive the timer configuration information sent by the source base station, the target base station automatically reports the target base station after receiving the RRC connection reconfiguration complete message of the UE. The source base station and the UE release each other's connections to each other.
  • FIG. 5 is a flowchart 3 of a handover method according to an alternative embodiment. As shown in FIG. 5, the flow includes the following steps:
  • Step S502 in a process in which the user equipment UE is switched from the source base station to the target base station, the UE receives an indication that the source base station sends a connection with the source base station;
  • Step S504 After receiving the notification sent by the source base station to instruct the UE to release the connection with the source base station, the UE releases the connection with the source base station.
  • the UE receives the handover command sent by the source base station, and receives an indication sent by the source base station to maintain a connection with the source base station, where the handover command carries an indication of maintaining a connection with the source base station, where the handover command is used to indicate the UE
  • the source base station switches to the target base station.
  • the UE must receive the handover command sent by the source base station to indicate the configuration information of the target base station.
  • the UE may receive the timer configuration information sent by the source base station or the indication of maintaining the connection with the source base station, or may be the timer that the UE receives the source base station simultaneously. Configuration information and an indication to maintain connection with the source base station. The timer configuration information and the indication of maintaining the connection with the source base station may be carried in the handover command.
  • the UE before the UE releases the connection with the source base station, the UE maintains a connection with the source base station through the data radio bearer DRB.
  • the UE receives a random access response of the target base station, and the UE reconfigures the signaling radio bearer SRB according to the target base station configuration information in the handover command.
  • the radio bearer includes an SRB and a DRB, and in the case where the DRB is used to connect with the source base station, the UE reconfigures the SRB.
  • the UE after the UE reconfigures the SRB, the UE establishes an independent MAC entity for the SRB, or the SRB and the DRB of the UE share the same MAC entity.
  • the uplink grant information received by the UE from the target base station is used for data transmission of the SRB
  • the uplink grant information received by the UE from the source base station is used.
  • the data transmission of the DRB; the buffer status report BSR that the UE triggers and reports to the target base station includes only the buffered data of the SRB, and the BSR that the UE triggers and reports to the source base station includes only the cached data of the DRB.
  • the UE sends control plane signaling to the target base station, where the control plane signaling includes: an RRC connection reconfiguration complete message; the UE receives a notification message of the target base station or the source base station, where the notification message is used by the UE The UE is notified to release the connection with the source base station.
  • the control plane signaling includes: an RRC connection reconfiguration complete message; the UE receives a notification message of the target base station or the source base station, where the notification message is used by the UE The UE is notified to release the connection with the source base station.
  • the UE when the UE does not receive the timer configuration information sent by the source base station, the UE directly communicates with the target base station, and the target base is used. The station notifies the UE and the source base station to release the connections between them on both sides.
  • the UE after the UE receives the random access response of the target base station, before the UE releases the connection with the source base station, the UE performs data transmission by using the SRB and the target base station; and the UE releases the source base station. After the connection, the UE performs data transmission with the target base station through the SRB and the DRB.
  • the UE reconfigures the radio bearer RB according to the target base station configuration information in the handover command.
  • the UE reconfigures the RB, if the SRB and the DRB of the UE adopt the same MAC entity, the UE reconfigures the layer 2 entity of the DRB and the SRB by using the target base station configuration information; If the SRB and the DRB use different MAC entities, the UE re-establishes the layer 2 entity corresponding to the DRB by using the target base station configuration information; the UE releases the MAC entity corresponding to the SRB, and reconfigures the SRB to be the same as the DRB.
  • the MAC entity, or the UE releases the layer 2 entity corresponding to the SRB and reconstructs the SRB as the same MAC entity as the DRB.
  • the SRB and the DRB use the same MAC entity, there is a reconfiguration method.
  • the triggering and reporting of the BSR of the UE includes the data of the DRB and the SRB, and the uplink grant of the target base station received by the UE is available to the DRB and the SRB at the same time.
  • the data is sent.
  • the UE after the UE receives the handover command sent by the source base station, the UE establishes a connection with the target base station by using the target base station configuration information, and if the connection with the target base station fails, the UE maintains a connection with the source base station, The UE releases the target base station configuration information. In the process of the UE switching the base station, it is inevitable that the handover base station fails. If the handover to the target base station fails, the UE remains connected with the source base station, and then the network side can re-trigger the UE handover base station procedure.
  • the indication information for establishing the connection failure in the foregoing embodiment includes one of the following types: handover failure; random access failure; physical layer RLM detection failure; and RLC retransmission failure.
  • FIG. 6 is a timer-based switching method according to an alternative embodiment of the present disclosure.
  • the flow chart, as shown in Figure 6, is as follows:
  • the source base station sends the configuration information (the timer configuration information in the foregoing embodiment) of the timer that keeps the UE connected to the source base station to the target base station.
  • the configuration information may include the expected duration of the timer.
  • the configuration information indicates that the UE is to be connected at the source base station. (Instruction of "Timer” and “Remain Connection Indication” in the "Handover Request” message shown in S601 in Fig. 6)
  • Step S602 the target base station sets a "timer to keep the UE connected to the source base station" configuration, and the setting indicates that the UE wants to maintain the connection at the source base station, and sends the connection to the source base station.
  • step S603 the source base station sends the "keeping timer of the UE to the source base station" to the UE when the handover command is issued, and sends the indication to the UE to keep the connection of the source base station, and the source base station records the UE's "hold UE”.
  • the source base station performs data transmission and reception through the DRB and the UE, and after the timer expires, the source base station releases the source base station connection of the UE.
  • the UE After receiving the handover command, the UE starts the “keeping timer for the UE to connect to the source base station”, and maintains the connection with the source base station before the timer of “keeping the UE connected to the source base station” expires, and performs data through the DRB and the source base station. Communication.
  • FIG. 7 is a reconfiguration SRB diagram of a timer-based handover method according to an alternative embodiment of the present disclosure. As shown in FIG. 7, the UE reconfigures the SRB according to configuration information of the target cell. There are two ways to reconfigure the SRB:
  • Mode 1 (the method method1 in FIG. 7): the SRB and the DRB of the UE share the same MAC entity, and the uplink grant information received by the UE from the target base station is used for data transmission of the SRB, and the uplink grant information received from the source base station is used for the DRB. Data is sent.
  • the BSR that is triggered by the UE and reported to the target base station only includes the cached data of the SRB.
  • the BSR that the UE triggers and reports to the source base station only includes the cached data of the DRB.
  • the UE may establish an independent MAC entity for the SRB, and the MAC entity corresponds to the connection of the target base station.
  • FIG. 8 is a flowchart of a UE start timer according to a timer-based handover method according to an alternative embodiment of the present disclosure.
  • the UE receives the configuration of the timer at time t1, and includes the timer. Total time (Toverall).
  • the UE can only start the timer at time t2 due to the processing delay (Tue) of the information. Therefore, when the UE starts the timer, the timeout period of the timer should exclude the processing delay of the UE. For (Toverall-Tue).
  • Step S604 the source base station initiates a data forwarding process to the target base station.
  • Step S605 the UE initiates a random access procedure to the target base station.
  • Figure 6S605 PRACH
  • Step S606 the target base station replies to the random access response. (See “RAR” in S606 in Figure 6)
  • Step S607 the UE reports the remaining duration of the "keeping timer of the UE connected to the source base station" to the target base station, (such as “Remaining Time” of "RRC Connection Reconfiguration Complete” in S607 in FIG. 6 and “Tremain” in FIG. ).
  • the remaining duration may additionally include a processing delay for reconfiguring the layer 2 entity after the UE timer expires (such as Tlayer 2 in FIG. 8).
  • the target base station records the remaining duration of the UE's "keeping the UE to connect to the source base station” timeout time, and the target base station communicates with the UE through the SRB before the UE's "keeping the UE to connect to the source base station” timeout.
  • the target base station communicates with the UE through the SRB and the DRB after the UE's "keeping timer for the UE to connect to the source base station" times out.
  • the remaining time length of the target base station for the UE's "keeping the UE to connect to the source base station" timeout time may be processed according to the manner of FIG. 8: the target base station receives the configuration of the timer at time t3, including the remaining duration of the timer ( Tremain).
  • the target base station at time t4 due to the processing delay (TeNB) for the information, the target base station can only be at t4
  • the remaining time length can be obtained at the time, starting from time t4, so the eNB considers that the end time at the time t5 is (Tremain-TeNB).
  • Step S608 the UE notifies the target base station that its reconfiguration is completed after reconfiguring its layer 2 entity. ("Reset Confirmation" of S608 in Figure 6)
  • FIG. 9 is a reconfiguration DRB diagram of a timer-based handover method according to an alternative embodiment of the present disclosure.
  • the manner in which the UE reconfigures its layer 2 entity may be performed as shown in FIG. 9:
  • the UE reconfigures the layer 2 entity of the DRB and the SRB by using the configuration of the target base station.
  • the UE If the current configuration mode of the SRB of the UE is mode 2 in S603, the UE re-establishes the layer 2 entity corresponding to the DRB by using the configuration of the target base station, and the UE releases the MAC entity corresponding to the SRB to reconfigure the SRB to the same MAC entity as the DRB, or After the UE releases the layer 2 entity corresponding to the SRB, the UE re-establishes the SRB as the same MAC entity as the DRB.
  • FIG. 10 is a flowchart of a method for switching based on a release indication according to an alternative embodiment of the present disclosure. As shown in FIG. 10, the steps are as follows:
  • Step S1001 The source base station sends a handover request to the target base station. And indicating that the UE is to be connected at the source base station. (Indication of "Remain Connection Indication” in the "Handover Request” message shown in S1001 in Fig. 10)
  • Step S1002 The target base station sends a handover request response to the source base station, and instructs the UE to maintain the connection at the source base station.
  • step S1003 the source base station sends the indication to the source base station to the UE when the handover command is issued, and the source base station performs data transmission and reception through the DRB and the UE.
  • the UE After receiving the handover command, the UE maintains the connection with the source base station and performs data communication with the source base station through the DRB.
  • the UE reconfigures the SRB according to the configuration information of the target cell, and the reconfiguration manner of the SRB is the same as that described in S603.
  • Step S1004 The data base station initiates a data forwarding process to the target base station.
  • Step S1005 The UE initiates a random access procedure to the target base station. (As shown in Figure 10, "PRACH" of S1005)
  • step S1006 the target base station replies to the random access response. (As shown in Figure 10, "RAR" of S1006)
  • step S1007 the UE reports the RRC connection reconfiguration complete message to the target base station (as shown in S1007, "RRC Connection Reconfiguration Complete").
  • the target base station communicates with the UE through the SRB.
  • Step S1008 The target base station notifies the source base station to release the source base station connection of the UE. (As shown in Figure 10, "UE Context Release” message of S1008)
  • Step S1009 The source base station releases the source base station connection of the UE, and notifies the target base station to release the result. (As shown in Figure 10, "Release Confirmation" message of S1009)
  • step S1010 the target base station notifies the UE to release the connection of the source base station. (Indicated by "Release Indication” in the "RRC Connection Reconfiguration” message of S1010 in Figure 10)
  • Step S1011 The UE releases the connection of the source base station, reconfigures its layer 2 entity, and sends an acknowledgement message to notify the target base station.
  • RRC Connection Reconfiguration Complete message in Figure 10
  • FIG. 11 is a process flow diagram of a handover failure, as shown in FIG. 11, in accordance with an alternative embodiment of the present disclosure.
  • Step S1101 The source base station sends a handover command to the UE, and indicates that the connection is maintained at the source base station.
  • the manner in which the UE reconfigures the SRB is the same as the method described in S603.
  • step S1102 if the UE fails to perform the wireless connection during the handover, the UE maintains the data communication with the source base station, and does not trigger the connection re-establishment process, the UE reports a failure indication to the network side, and the failure indication information may include a failure type: Failed Incoming failure; physical layer RLM detection failed; RLC retransmission failed.
  • the UE releases the configuration information of the target base station. (As shown in Figure 11 in the "Failure Indication" message of S1102)
  • FIG. 12 is a layer 2 processing diagram of handover failure according to an alternative embodiment of the present disclosure. As shown in FIG. 12, layer 2 of the UE may be processed according to FIG. 12:
  • Mode 2 If the SRB and the DRB of the UE are different MAC entities, the UE reconfigures the SRB by using the configuration of the source base station, and the UE releases the SRB corresponding to the SRB to reconfigure the SRB into the same MAC entity as the DRB, or the UE. After releasing the layer 2 entity corresponding to the SRB, the SRB is re-established to be the same MAC entity as the DRB.
  • the source base station may select another cell to switch the UE.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present disclosure which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a plurality of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the method of various embodiments of the present disclosure.
  • a switching device is also provided, which is used to implement the foregoing embodiments and optional embodiments, and has not been described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 13 is a structural block diagram of a switching apparatus according to an alternative embodiment. As shown in FIG. 13, the apparatus includes:
  • the sending module 1302 is configured to switch, at the user equipment UE, the source base station to the target base station In the process, the sending module 1302 sends an indication to the UE to maintain the connection with the source base station;
  • the first release module 1304 is connected to the sending module 1302, and is configured to: after the source base station receives the notification information sent by the target base station, the source base station releases the connection with the UE, where the notification information is used to notify the source base station to release the UE. Connection.
  • FIG. 14 is a structural block diagram of a switching apparatus according to an alternative embodiment. As shown in FIG. 14, the apparatus includes:
  • the first receiving module 1402 is configured to receive, during the handover of the user equipment UE by the source base station to the target base station, the first receiving module 1402 receiving an indication that the source base station sends a connection with the source base station;
  • the communication module 1404 is connected to the first receiving module 1402, and is configured to communicate with the UE by signaling the radio bearer SRB before the UE releases the connection with the source base station; the communication module 1404 is further configured to be in the After the UE releases the connection with the source base station, the target base station communicates with the UE through the SRB and the data radio bearer DRB.
  • FIG. 15 is a structural block diagram of a switching apparatus applied to a UE according to an alternative embodiment. As shown in FIG. 15, the apparatus includes:
  • the second receiving module 1502 is configured to receive, during the handover of the user equipment UE by the source base station to the target base station, the second receiving module 1502 receiving an indication that the source base station sends a connection with the source base station;
  • the second release module 1504 is connected to the second receiving module 1502, and is configured to: after the UE receives the notification sent by the source base station to instruct the UE to release the connection with the source base station, the UE releases the connection with the source base station.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors; or the functions of the processor are used to implement the above modules.
  • Embodiments of the present disclosure also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the source base station sends an indication to the UE to maintain the connection with the source base station.
  • the source base station After the source base station receives the notification information sent by the target base station, the source base station releases the connection with the UE, where the notification information is used to notify the source base station to release the connection with the UE.
  • the above storage medium may be arranged to store program code for performing the following steps:
  • the target base station in the process of the user equipment UE being handed over from the source base station to the target base station, the target base station receiving an indication sent by the source base station to maintain the connection with the source base station;
  • the target base station Before the UE releases the connection with the source base station, the target base station performs communication by signaling the radio bearer SRB and the UE; after the UE releases the connection with the source base station, the target base station communicates with the UE through the SRB and the data radio bearer DRB.
  • the above storage medium may be arranged to store program code for performing the following steps:
  • the UE receives an indication sent by the source base station to maintain the connection with the source base station during the handover of the user equipment UE from the source base station to the target base station.
  • the UE After the UE receives the notification that is sent by the source base station to instruct the UE to release the connection with the source base station, the UE releases the connection with the source base station.
  • An embodiment of the present disclosure further provides a source base station.
  • the source base station includes: a memory 1602 and a processor 1604, where the processor 1602 is configured to execute an execution instruction stored in the memory 1604.
  • the above memory 1604 is further configured to store the following execution instructions:
  • the source base station sends an indication to the UE to maintain the connection with the source base station.
  • the source base station After the source base station receives the notification information sent by the target base station, the source base station releases the connection with the UE, where the notification information is used to notify the source base station to release the connection with the UE.
  • the target base station includes: a memory 1702 and a processor 1704, where the processor 1704 is configured to execute an execution instruction stored in the memory 1702.
  • the above memory 1702 is further configured to store the following execution instructions:
  • the target base station receives an indication that the source base station sends a connection with the source base station.
  • the target base station Before the UE releases the connection with the source base station, the target base station communicates with the UE by using the signaling radio bearer SRB; after the UE releases the connection with the source base station, the target base station communicates with the UE by using the SRB and the data radio bearer DRB.
  • An embodiment of the present disclosure further provides a user equipment, as shown in FIG. 18, the user equipment UE includes: a memory 1802 and a processor 1804, where the processor 1804 is configured to execute an execution instruction stored in the memory 1802.
  • the above memory 1802 is further configured to store the following execution instructions:
  • the UE receives an indication sent by the source base station to maintain the connection with the source base station during the handover of the user equipment UE from the source base station to the target base station.
  • the UE After the UE receives the notification that is sent by the source base station to indicate that the UE releases the connection with the source base station, the UE releases the connection with the source base station, where the notification information is used to notify the source base station to release the connection with the UE.
  • An embodiment of the present disclosure further provides a user equipment base station handover system.
  • the user equipment base station handover system includes:
  • the source base station 1902 is configured to, when the user equipment 1906 is switched from the source base station 1902 to the target base station 1904, the source base station 1902 sends an indication to the target base station 1904 to maintain the connection with the source base station 1902, and the source base station 1902 is configured to receive the target base station 1904. After the notification information is sent, the source base station 1902 releases the connection with the user equipment 1906, where The notification information is used to notify the source base station 1902 to release the connection with the user equipment 1906;
  • the target base station 1904 is configured to receive, during the handover of the user equipment 1906 by the source base station 1902 to the target base station 1904, the target base station 1904 receives an indication sent by the source base station 1902 to remain connected to the source base station 1802; and releases the source base station 1902 at the user equipment 1906.
  • the target base station 1904 Prior to the connection, the target base station 1904 communicates with the user equipment 1906 via the signaling radio bearer SRB; after the user equipment 1906 releases the connection with the source base station 1902, the target base station 1904 communicates with the user equipment 1906 via the SRB and the data radio bearer DRB.
  • the user equipment 1906 is configured to receive, during the handover of the user equipment 1906 from the source base station 1902 to the target base station 1904, the user equipment 1906 receives an indication sent by the source base station 1902 to maintain the connection with the source base station 1902; and the user equipment 1906 receives the source base station 1902. After the notification indicating that the user equipment 1906 releases the connection with the source base station 1906, the user equipment 1906 releases the connection with the source base station 1902.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor executes the method steps described in the foregoing embodiments according to the stored program code in the storage medium.
  • modules or steps of the present disclosure described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.
  • the source base station sends an indication of maintaining the connection with the source base station to the UE and the target base station in the process of the user equipment UE applying for the handover of the base station, after the source base station receives the notification information sent by the target base station, The source base station releases the connection with the UE, where the notification information is used to notify the source base station to release the connection with the UE.
  • the source base station releases the connection with the UE that has switched to the target base station in time, and solves the problem that the wireless resource of the source base station is wasted due to the connection of the autonomous release source base station after the UE randomly accesses the target base station in the related art.
  • the problem is to save the wireless resources of the source base station in time.

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Abstract

L'invention concerne un procédé et un dispositif de commutation, le procédé comprenant les opérations suivantes : dans un processus de commutation d'un équipement utilisateur (UE) d'une station de base source à une station de base cible, la station de base source envoie une instruction à l'UE pour que ce dernier reste connecté à la station de base source ; après que la station de base source reçoit des informations de notification délivrées par la station de base cible, la station de base source libère la connexion avec l'UE, les informations de notification étant utilisées pour notifier à la station de base source de libérer la connexion avec l'UE. La présente solution résout le problème dans l'état de la technique de gaspillage de ressources sans fil de station de base source provoqué par la libération autonome par un UE d'une connexion de station de base source après l'accès aléatoire à une station de base cible, et économise ainsi des ressources sans fil de station de base source d'une manière opportune.
PCT/CN2017/084251 2016-05-13 2017-05-12 Procédé et dispositif de commutation WO2017194021A1 (fr)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210195481A1 (en) * 2018-09-27 2021-06-24 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for Handover Report and Terminal Device
EP3958617A4 (fr) * 2019-05-14 2022-07-20 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de commutation entre des dispositifs de réseau d'accès, dispositif terminal et dispositif de réseau
CN114928863A (zh) * 2022-02-17 2022-08-19 北京邮电大学 高速移动下的上行通信方法及相关设备
US12004033B2 (en) 2021-11-12 2024-06-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for switching between access network devices, terminal device, and network device

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109644463B (zh) * 2018-02-12 2020-06-09 Oppo广东移动通信有限公司 无线通信的方法和终端设备
CN108834203B (zh) * 2018-06-29 2021-01-26 Oppo（重庆）智能科技有限公司 网络切换方法、装置、终端及存储介质
WO2020056562A1 (fr) * 2018-09-17 2020-03-26 Oppo广东移动通信有限公司 Procédé de libération de connexion, dispositifs, et support de stockage
WO2020061876A1 (fr) * 2018-09-27 2020-04-02 华为技术有限公司 Procédé et appareil d'arrêt de transmission de données
AU2018442733A1 (en) * 2018-09-27 2021-04-29 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Timer-based processing method, terminal device and network device
CN111182590B (zh) * 2018-11-09 2022-12-13 维沃移动通信有限公司 一种小区切换方法、终端和通信节点
AU2019423293B2 (en) * 2019-01-14 2022-08-04 Zte Corporation Mobility enforcement in connected wireless state
WO2020155073A1 (fr) * 2019-01-31 2020-08-06 华为技术有限公司 Procédé et dispositif de transfert intercellulaire
JP7171927B2 (ja) * 2019-02-14 2022-11-15 テレフオンアクチーボラゲット エルエム エリクソン（パブル） ハンドオーバを実行するためのユーザ機器及びそれにおける方法
KR20210154165A (ko) * 2019-03-22 2021-12-20 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 핸드오버 처리 방법, 단말 기기 및 네트워크 기기
CN113647144B (zh) * 2019-07-05 2024-05-17 Oppo广东移动通信有限公司 一种条件切换指示方法、终端设备、源基站及存储介质
WO2021232201A1 (fr) * 2020-05-18 2021-11-25 Nec Corporation Procédés, dispositifs et support lisible par ordinateur de communication
EP4183170A4 (fr) * 2020-07-17 2023-12-20 Telefonaktiebolaget LM ERICSSON (PUBL) Migration de connexion de plan de contrôle dans un réseau iab (integrated access backhaul)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101048001A (zh) * 2006-06-22 2007-10-03 华为技术有限公司 切换控制方法
CN101577946A (zh) * 2009-06-12 2009-11-11 华为技术有限公司 无缝切换方法、装置和系统
CN102123457A (zh) * 2010-01-11 2011-07-13 中兴通讯股份有限公司 切换方法及终端
CN102724722A (zh) * 2011-03-30 2012-10-10 中国移动通信集团公司 一种切换系统、方法、装置和相关设备
US20140087731A1 (en) * 2011-05-25 2014-03-27 Huawei Technologies Co., Ltd. Handover method and base station

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7623509B2 (en) * 2004-06-14 2009-11-24 Nokia Corporation Enhanced handling of system information messages when moving from dual transfer mode to packet transfer mode
CN101494884B (zh) * 2008-01-21 2012-10-10 中兴通讯股份有限公司 切换异常处理方法
CN101572920A (zh) * 2008-04-28 2009-11-04 中兴通讯股份有限公司 一种提高专用前导序列使用效率的方法及终端切换方法
CN101848511B (zh) * 2009-03-24 2013-01-02 华为技术有限公司 业务切换方法、相关设备及系统
RU2496262C2 (ru) * 2009-04-10 2013-10-20 Хуавэй Текнолоджиз Ко., Лтд. Способ, устройство и система хэндовера
EP2244502B1 (fr) * 2009-04-20 2011-06-08 Alcatel Lucent Procédé de transfert
CN101998558B (zh) * 2009-08-14 2014-10-08 华为技术有限公司 一种小区切换的方法、基站及系统
CN102238665B (zh) * 2010-05-05 2016-03-30 中兴通讯股份有限公司 随机接入方法、基站、用户设备及系统
CN103139851A (zh) * 2011-12-02 2013-06-05 华为技术有限公司 一种资源释放控制方法及接入设备
CN102695225B (zh) * 2012-05-11 2014-12-24 中国联合网络通信集团有限公司 基站直通架构下的用户切换方法及基站
EP2876935A4 (fr) * 2012-07-18 2015-08-26 Nec Corp Station de base radio, système de communication mobile, procédé pour le contrôle d'un transfert intercellulaire, et programme
CN103782628A (zh) * 2013-04-18 2014-05-07 华为技术有限公司 通信方法、设备和系统
CN104349409B (zh) * 2013-07-30 2019-11-05 中兴通讯股份有限公司 一种小区切换方法和基站

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101048001A (zh) * 2006-06-22 2007-10-03 华为技术有限公司 切换控制方法
CN101577946A (zh) * 2009-06-12 2009-11-11 华为技术有限公司 无缝切换方法、装置和系统
CN102123457A (zh) * 2010-01-11 2011-07-13 中兴通讯股份有限公司 切换方法及终端
CN102724722A (zh) * 2011-03-30 2012-10-10 中国移动通信集团公司 一种切换系统、方法、装置和相关设备
US20140087731A1 (en) * 2011-05-25 2014-03-27 Huawei Technologies Co., Ltd. Handover method and base station

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210195481A1 (en) * 2018-09-27 2021-06-24 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for Handover Report and Terminal Device
US11665601B2 (en) * 2018-09-27 2023-05-30 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for handover report and terminal device
EP3958617A4 (fr) * 2019-05-14 2022-07-20 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de commutation entre des dispositifs de réseau d'accès, dispositif terminal et dispositif de réseau
US12004033B2 (en) 2021-11-12 2024-06-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for switching between access network devices, terminal device, and network device
CN114928863A (zh) * 2022-02-17 2022-08-19 北京邮电大学 高速移动下的上行通信方法及相关设备
CN114928863B (zh) * 2022-02-17 2024-05-28 北京邮电大学 高速移动下的上行通信方法及相关设备

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