WO2010031345A1 - 小区切换方法及装置 - Google Patents

小区切换方法及装置 Download PDF

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Publication number
WO2010031345A1
WO2010031345A1 PCT/CN2009/074005 CN2009074005W WO2010031345A1 WO 2010031345 A1 WO2010031345 A1 WO 2010031345A1 CN 2009074005 W CN2009074005 W CN 2009074005W WO 2010031345 A1 WO2010031345 A1 WO 2010031345A1
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WO
WIPO (PCT)
Prior art keywords
reception state
cell handover
discontinuous reception
downlink discontinuous
downlink
Prior art date
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PCT/CN2009/074005
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English (en)
French (fr)
Inventor
高永强
贺传峰
杨波
孟艳
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP09814065A priority Critical patent/EP2326125A4/en
Publication of WO2010031345A1 publication Critical patent/WO2010031345A1/zh
Priority to US13/052,454 priority patent/US20110211556A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a cell handover method and apparatus. Background technique
  • the 3rd Generation Partnership Project (3rd Generation Partnership Proj) Ect hereinafter referred to as: 3 GPP) Wideband Code Division Multiple Access (WCDMA) R5 version introduces High Speed Downlink Packet Access (HSDPA).
  • WCDMA Wideband Code Division Multiple Access
  • HSDPA High Speed Downlink Packet Access
  • a high-speed physical downlink shared channel is added for high-speed packet data transmission for multi-user sharing, and technologies such as adaptive modulation coding and fast physical layer hybrid automatic retransmission are adopted.
  • HS-DSCH High Speed Downlink Shared Channel
  • DCH Dedicated Channel
  • Connectivity hereinafter referred to as CPC technology
  • CPC technology enables the UE and the network to remain in a connected state for a long period of time during periods of inactivity without data transmission, while consuming little air interface resources.
  • the main factor limiting the number of simultaneous online users is uplink interference.
  • the uplink dedicated physical control channel Dedicated Physical Control Channel
  • DPCCH Downlink dedicated Physical Control Channel
  • the uplink DPCCH may enter a discontinuous transmission state (hereinafter referred to as DTX).
  • DTX discontinuous transmission state
  • DRX discontinuous reception state
  • the CPC mode is indicated by the parameter UE-DTX-DRX-Enable on or off (TRUE is on, FALSE is off).
  • UL_DTX_Active UL_DTX_Active
  • DL-DRX-Active DL-DRX-Active respectively
  • HS-SCCH Shared Control Channel for HS-DSCH
  • HS-SCCH Shared Control Channel for HS-DSCH
  • the subframe length of the SCCH reception pattern that is, how many subframes the UE has allowed to listen to the HS-SCCH, whose possible values are 4, 5, 8, 10, 16, 20 subframes.
  • a radio network controller (Radio Network Controller, hereinafter referred to as RNC) performs handover according to event 1A on the UE, and prepares to establish a wireless connection.
  • RNC Radio Network Controller
  • the RNC performs the handover decision according to the event 1D reported by the UE, and uses the radio link (Radio Link, hereinafter referred to as: RL)
  • the reconfiguration execution message activates the base station of the target cell (hereinafter referred to as: the target NodeB) to start handover, and uses the reconfiguration command sent by the RNC or the HS-SCCH command sent by the target NodeB to instruct the UE to perform handover; 3) at the same time, the UE After reporting the event 1D, it starts to listen to the HS-SCCH of the target NodeB; 4) After receiving the HS-SCCH order of the target NodeB or the reconfiguration command of the RNC, the UE switches to the target NodeB.
  • the UE is in the CPC mode (ie, UE-DTX-DRX-Enceive is TRUE), and the downlink discontinuous reception state is turned on ( That is, when DL-DRX_Active is TRUE, when the RNC sends a reconfiguration command or the target NodeB sends an HS-SCCH order, in order to ensure that the UE can receive the reconfiguration command or the HS-SCCH command at the pattern that is allowed to be received, it needs to be based on
  • the UE-DRX-cycle waits for a suitable receiving pattern to send a reconfiguration command or an HS-SCCH command, which increases the delay of the cell handover process, causes a long-term service interruption, increases the dropped call rate, and affects the real-time service user. Feelings.
  • the reconfiguration command sent by the RNC in step 2) and the HS-SCCH command sent by the destination NodeB are both handover indication commands, and the network may choose to transmit only one of the two, You can choose to send both.
  • the prior art does not provide a specific implementation manner for the notification destination NodeB to indicate that the UE performs the serving cell handover by using the method of sending the HS-SCCH command.
  • the UE When the destination NodeB does not send the HS-SCCH command, the UE will The reconfiguration command sent by the RNC performs the original hard handover procedure instead of enhancing the HS-DSCH serving cell handover procedure, and the original hard handover procedure has a large delay, which cannot reflect the enhanced HS-DSCH serving cell handover delay. Small, fast advantages. Summary of the invention
  • the embodiment of the invention provides a cell handover method and device, which are used to reduce the delay in the cell handover process.
  • the cell handover method provided by the embodiment of the present invention includes: a user equipment initiates a cell handover; if the user equipment is not in a downlink discontinuous reception state, performing cell handover in the downlink discontinuous reception state; When the user equipment is in the downlink discontinuous reception state, the downlink discontinuous reception state is exited, and the cell handover is performed in the downlink discontinuous reception state.
  • the cell switching device includes: an initiating module, configured to initiate a cell handover; and a control module, configured to: when the user equipment is in a downlink discontinuous reception state, exit the downlink discontinuous reception state; and the switching module, And performing, when the user equipment is not in the downlink discontinuous reception state, or after the user equipment exits the downlink discontinuous reception state, performing cell handover in a downlink discontinuous reception state.
  • the cell handover method and device provided by the embodiment of the present invention perform cell handover in the downlink discontinuous reception state, and avoid the handover indication in the cell handover process that cannot be received in time due to the downlink discontinuous reception state in the handover scenario.
  • the problem of the command thereby reducing the delay in the cell handover process, avoiding the long-term service interruption, and reducing the call drop rate.
  • FIG. 1 is a flowchart of a cell handover method according to an embodiment of the present invention
  • FIG. 2 is a signaling flowchart of a second cell handover method according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for switching a three cell according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for switching four cells according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for switching a five cell according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a six-cell switching apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a cell switching apparatus according to Embodiment 7 of the present invention. detailed description
  • FIG. 1 it is a flowchart of a cell handover method according to an embodiment of the present invention, which specifically includes the following steps.
  • Step 101 The user equipment initiates a cell handover.
  • Step 102 If the user equipment is not in the downlink discontinuous reception state, the user equipment is not in the downlink non-continuous state. The cell handover is performed in the continuous reception state.
  • Step 103 If the user equipment is in the downlink discontinuous reception state, exit the downlink discontinuous reception state, and perform cell handover without being in the downlink discontinuous reception state.
  • the cell handover is performed in the downlink discontinuous reception state, which avoids the problem that the handover indication command in the cell handover process cannot be received in time due to the downlink discontinuous reception state in the handover scenario, thereby reducing the cell handover.
  • the delay in the process avoids long-term business interruption and reduces the dropped call rate.
  • FIG. 2 it is a signaling flowchart of a method for switching a cell in a cell according to an embodiment of the present invention.
  • an HS-DSCH serving cell handover scenario is taken as an example.
  • a serving RNC (SRNC) is involved in cell handover.
  • This embodiment specifically includes the following steps.
  • Step 201 The UE initiates a cell handover; the UE reports a 1A event to the SRNC.
  • Step 202 The SRNC performs handover preparation according to the 1A event reported by the UE, establishes a wireless connection, and sends configuration information of all active set cells in the active set update acknowledgement message to perform activation set update.
  • the configuration information includes HS-DSCH related configuration information and corresponding E-DCH configuration information.
  • Step 203 The UE reports a 1D event to the SRNC.
  • Step 204 When the UE is not in the downlink discontinuous reception state (ie, DL_DRX_Active is FALSE), the UE remains in the downlink discontinuous reception state, that is, the UE does not enter the downlink discontinuous reception state;
  • the UE When the UE is in the downlink discontinuous reception state (ie, DL_DRX_Active is TRUE), the UE exits the downlink discontinuous reception state (by setting DL_DRX_Active to FALSE), and the UE remains in the downlink discontinuous reception state. That is, the UE no longer enters the downlink discontinuous reception state.
  • the UE can control or change the state in which it is located.
  • Step 205 The UE listens to the HS-SCCH of the target cell.
  • Step 206 The SRNC performs a handover decision according to the 1D event reported by the UE.
  • Step 208 The target NodeB sends an HS-SCCH command to the UE, instructing the UE to perform cell switching.
  • Step 209 The SRNC sends a reconfiguration command to the UE, where the reconfiguration naming includes: a physical channel reconfiguration command, or a transport channel reconfiguration command, or a radio bearer reconfiguration command.
  • the HS-SCCH command and the reconfiguration command in step 208 and step 209 are both handover indication commands, and the network may choose to send only HS-SCCH commands or reconfiguration commands, or both.
  • Step 210 The UE officially switches to the target NodeB.
  • the UE If the UE receives the HS-SCCH command sent by the target NodeB, it can receive the HS-SCCH command sent by the target NodeB for 40 milliseconds, and then formally switch to the target NodeB to receive the relevant HS-PDSCH data.
  • the UE If the UE receives the reconfiguration command from the SRNC, it can process it according to the original Hard Handover (HHO) process.
  • HHO Hard Handover
  • Step 211 The SRNC determines a data path path switching time point according to the relevant time point.
  • Step 212 The UE feeds back a reconfiguration complete message to the SRNC. If the UE processes the radio bearer reconfiguration command (Radio Bearer Reconfiguration, RBR for short), the reconfiguration completion message is fed back according to the time specified by the RBR. Otherwise, the reconfiguration is completed after receiving the HS-SCCH command for 40 milliseconds. Message.
  • RBR Radio Bearer Reconfiguration
  • the cell handover succeeds.
  • the UE remains in the downlink discontinuous reception state, that is, the UE performs cell handover without being in the downlink discontinuous reception state.
  • the SRNC sends the reconfiguration command or the target NodeB sends the HS-SCCH command, it does not need to wait for the appropriate receiving pattern, and avoids the handover indication command in the cell handover process due to the downlink discontinuous reception state in the handover scenario.
  • the problem thereby reducing the delay in the cell handover process, avoiding the long-term service interruption, Reduced call drop rate and improved the sensitivity of real-time business users.
  • step 204 may be performed at any time after the cell handover is initiated and before the cell handover is performed.
  • the set time may be started, and the cell handover is performed in the downlink discontinuous reception state. Specifically, the UE performs cell handover in a downlink discontinuous reception state within a set time. After the step 212 is successfully performed, if the set time is not yet reached, the set time is canceled; when the step 212 is not executed or executed, and the set time is reached, the UE is restored to the start set time. The previous state.
  • the above set time can be a timer.
  • the UE when the UE is not in the downlink discontinuous reception state, the UE cannot enter the downlink discontinuous reception state within the set time (before the timer expires) until the cell handover is successful, if the set time has not yet been reached. And canceling the set time; if the UE has not completed the HS-DSCH serving cell handover procedure after the set time is reached, the UE is restored to the downlink discontinuous reception state before the startup setup time, and then may be according to the network.
  • the configuration indication performs the corresponding behavior, for example, the UE enters the downlink discontinuous reception state according to the network indication, and the like;
  • the UE When the UE is in the downlink discontinuous reception state, the UE exits the downlink discontinuous reception state, and the UE cannot enter the downlink discontinuous reception state within the set time (before the timer expires) until after the cell handover succeeds, if If the set time is not reached, the set time is canceled; if the UE has not completed the HS-DSCH serving cell handover procedure after the set time is reached, the UE returns to the downlink discontinuous reception state before the start set time ( According to the previous DRX parameter continuation behavior, the corresponding behavior may be performed according to the network configuration indication, for example, the UE exits the downlink discontinuous reception state according to the network indication, or updates the DRX parameter.
  • the set time is generally greater than the time when the cell normally completes the handover, and the method of starting the set time on the UE side is such that during the cell handover or the set time, the UE is not in the downlink discontinuous reception state, and the normal handover is performed.
  • the SRNC sends a reconfiguration command or the target NodeB sends an HS-SCCH command
  • it does not need to wait for a suitable receiving pattern, thereby avoiding the switching scenario
  • the problem of being in the downlink discontinuous reception state and not receiving the handover indication command in the cell handover process in time thereby reducing the delay in the cell handover process, avoiding the service interruption for a long time, reducing the call drop rate, and improving the call loss rate.
  • the preferred implementation manner is as follows: between step 207 and step 208, the SRNC further includes signaling to the target NodeB, where the signaling includes indicating to use the enhanced serving cell.
  • the indication information of the handover procedure, the timely notification destination NodeB can use the manner of sending the HS-SCCH command to the UE to instruct the UE to perform the serving cell handover, so that the possibility of using the enhanced serving cell handover procedure in the subsequent handover procedure is greatly improved, and the possibility is reduced.
  • the delay in the cell handover process is as follows: between step 207 and step 208, the SRNC further includes signaling to the target NodeB, where the signaling includes indicating to use the enhanced serving cell.
  • the signaling may be specifically a base station application part protocol (NodeB Application Part, hereinafter referred to as: ⁇ ⁇ ) signaling
  • ⁇ ⁇ signaling may be new ⁇ ⁇ signaling, or may include a new information element (Information Element, hereinafter referred to as IE), carries the second indication information in the new IE.
  • IE Information Element
  • the SRNC further includes sending, by the SRNC, signaling to the target NodeB, where the signaling includes indicating that the UE is not in the DRX.
  • the first indication information of the state that is, the SRNC informs the target NodeB that the UE is not in the DRX state, and can send a handover indication command to the UE at any time.
  • the signaling may be NBAP signaling, and the NBAP signaling may be a new NBAP signaling, or may include a new IE, and the first indication information is carried in the new IE.
  • the NodeB is now in the DRX state, and can send a handover indication command to the UE at any time, so that the target NodeB can know the state of the UE in time, and further reduce the delay in the handover process.
  • FIG. 3 it is a flowchart of a method for switching a three cell according to an embodiment of the present invention, which specifically includes the following steps.
  • Step 301 The UE initiates a cell handover; the UE reports a 1A event to the SRNC.
  • the configuration information includes HS-DSCH related configuration information and corresponding E-DCH configuration information.
  • Step 304 When the UE is not in the downlink discontinuous reception state (ie, DL_DRX_Active is FALSE), the UE remains in the downlink discontinuous reception state, that is, the UE does not enter the downlink discontinuous reception state.
  • Step 305 When the UE is in a downlink discontinuous reception state (ie, DL-DRX-Active is TRUE), the UE exits the downlink discontinuous reception state (by setting DL-DRX-Active to FALSE), and the UE remains in the downlink.
  • the discontinuous reception state that is, the UE no longer enters the downlink discontinuous reception state.
  • the UE can control or change the state in which it is located.
  • Step 306 The UE listens to the HS-SCCH of the target cell.
  • Step 307 The SRNC performs a handover decision according to the 1D event reported by the UE.
  • Step 308 The SRNC uses the RL reconfiguration execution message to activate the target NodeB and the source NodeB to start the handover.
  • Step 309 The SRNC sends NBAP signaling to the target NodeB.
  • the NBAP signaling includes first indication information indicating that the UE is not in the DRX state, and second indication information indicating that the enhanced serving cell handover procedure is used.
  • Step 310 The target NodeB sends an HS-SCCH order to the UE, instructing the UE to perform enhanced service cell handover.
  • Step 311 The UE officially switches to the target NodeB. After receiving the HS-SCCH command sent by the target NodeB, the UE can formally switch to the target NodeB and receive the relevant HS-PDSCH data after receiving the HS-SCCH command sent by the target NodeB for 40 milliseconds.
  • Step 312 The SRNC determines a data plane path switching time point according to the relevant time point.
  • Step 313 After receiving the HS-SCCH order for 40 milliseconds, the UE feeds back the reconfiguration complete message.
  • the setting time can also be started in steps 304 and 305, and the description about the setting time in the second embodiment can be referred to.
  • the UE remains in the downlink discontinuous reception state, that is, before the cell handover succeeds, the UE remains in the downlink discontinuous reception state, and the HS-SCCH command is sent in the target NodeB.
  • the problem of the handover indication command in the cell handover process cannot be received in time due to the downlink discontinuous reception state, thereby reducing the delay in the cell handover process.
  • the service interruption of the long-term service is avoided, the call drop rate is reduced, and the sensitivity of the real-time service user is improved.
  • the second indication information for indicating the use of the enhanced service cell handover procedure is included in the NBAP signaling.
  • the notification destination NodeB can use the manner of sending the HS-SCCH command to the UE to instruct the UE to perform the serving cell handover, so that the possibility of using the enhanced serving cell handover procedure in the subsequent handover procedure is greatly improved, and the delay in the cell handover process is reduced; And, the NBAP signaling is used to indicate that the UE is not in the DRX shape.
  • First indication information, to inform the target NodeB the UE is not in DRX state now can always send a handover command to the UE indicating, that the target NodeB timely informed of the state of the UE, further reducing the latency during handover.
  • FIG. 4 it is a flowchart of a method for switching a four cell according to an embodiment of the present invention, which specifically includes the following steps.
  • Step 401 Receive a cell handover initiation command.
  • Step 402 Activate the target base station, and send signaling to the target NodeB that includes indication information.
  • the indication information is used to indicate that the target NodeB and the UE use the enhanced serving cell handover procedure to perform cell handover.
  • the method may further include: Step 403: According to the indication information, the target NodeB and the UE perform handover according to the enhanced serving cell handover procedure.
  • the target NodeB can be sent to the UE by using signaling to notify the UE in time.
  • the manner of the HS-SCCH command indicates that the UE performs the serving cell handover, so that the possibility that the subsequent handover procedure uses the enhanced serving cell handover procedure is greatly improved, and the delay in the cell handover process is reduced.
  • FIG. 5 it is a flowchart of a five-cell handover method according to an embodiment of the present invention, which specifically includes the following steps.
  • Step 501 The SRNC receives the 1A event reported by the UE.
  • Step 502 The SRNC performs handover preparation according to the 1A event reported by the UE, establishes a wireless connection, and sends configuration information of all active set cells in the active set update acknowledgement message to perform activation set update.
  • Step 503 The SRNC receives the 1D event reported by the UE, and performs a handover decision.
  • Step 504 The SRCN uses the RL reconfiguration execution message to activate the target NodeB and the source NodeB to start the handover.
  • Step 505 The SRNC sends, to the target NodeB, signaling including indication information indicating that the enhanced serving cell switching procedure is used; the signaling may be NBAP signaling.
  • the NBAP signaling may be a new NBAP signaling, or a new IE may be added to the original NBAP signaling, and the indication information is carried in the new IE.
  • Step 506 The target NodeB sends an HS-SCCH command to the UE according to the signaling in step 505, instructing the UE to perform enhanced serving cell handover.
  • Step 507 The UE officially switches to the target NodeB.
  • Step 508 The SRNC determines a data plane path switching time point according to the relevant time point.
  • Step 509 After receiving the HS-SCCH command for 40 milliseconds, the UE feeds back the reconfiguration complete message.
  • the NBAP signaling can notify the target NodeB that the UE can be used to perform the serving cell handover by using the method of sending the HS-SCCH command to the UE, so that the possibility of using the enhanced serving cell handover procedure in the subsequent handover procedure is greatly Increase, reduce the delay in the cell handover process.
  • FIG. 6 is a schematic structural diagram of a six-cell switching apparatus according to an embodiment of the present invention.
  • the switching apparatus in this embodiment may be specifically a UE, including an initiating module 11, a control module 12, and a switching module 13, where the initiating module 11 initiates a cell handover. ; if the UE is not in the downlink discontinuous reception state, control The module 12 exits the downlink discontinuous reception state; if the UE is in the downlink discontinuous reception state, or the control module 12 controls to exit the downlink discontinuous reception state, the handover module 13 performs cell handover without being in the downlink discontinuous reception state.
  • the switching module 13 can also keep the UE in a downlink discontinuous reception state before the cell handover succeeds.
  • the embodiment may further include a timing module 14, when the UE is not in the downlink discontinuous reception state or exits the downlink discontinuous reception state, the timing module 14 starts the set time; the switching module 13 keeps not in the downlink during the set time. Continuous reception status.
  • the embodiment may further include a cancellation module 15 or a recovery module 16, wherein if the cell handover is successful within the set time, the cancel module 15 cancels the set time of the timing module 14; if the cell handover is not successful within the set time, the recovery module 16 After the set time has elapsed, it returns to the state before the start set time.
  • the UE may not remain in the downlink discontinuous reception state during the cell handover process, so that when the RNC sends the reconfiguration command or the target NodeB sends the HS-SCCH command, it does not need to wait for a suitable reception pattern, which avoids
  • the problem of the handover indication command in the cell handover process cannot be received in time due to the downlink discontinuous reception state, thereby reducing the delay in the cell handover process, avoiding the service interruption for a long time, and reducing the service interruption.
  • the dropped call rate improves the sensitivity of the real-time service user.
  • the set time is activated by the timing module 14 so that when the cell handover is abnormal, the UE can be restored to the state before the startup set time, and other corresponding behaviors can be performed.
  • the handover apparatus in this embodiment may be specifically an SRNC, and includes: a receiving module 21, an activation module 22, and an indication module 23, where the receiving module 21 receives a cell handover initiation command; the activation module 22 activates the target NodeB; the indication module 23 transmits signaling including indication information to the target NodeB; the indication information is used to indicate that the target NodeB and the UE use the enhanced serving cell handover procedure to perform cell handover and/or indicate the UE Not in the downlink discontinuous reception state.
  • the signaling that is sent by the indication module 23 to indicate that the target NodeB and the UE use the enhanced serving cell handover procedure to perform cell handover indication information (the signaling may be NBAP signaling) is timely. Notifying the target NodeB that the UE may be used to perform the serving cell handover by using the HS-SCCH command to the UE, so that the possibility of using the enhanced serving cell handover procedure in the subsequent handover procedure is greatly improved, and the delay in the cell handover process is reduced; Or, the signaling that is sent by the indication module 23 to indicate that the UE is not in the downlink discontinuous reception state is used to notify the target NodeB that the UE is not in the DRX state, and may send a handover indication command to the UE at any time, which reduces the handover process. Delay.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. It is not limited thereto; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or some of the technologies. The features are equivalent to the equivalents of the technical solutions of the embodiments of the embodiments of the present invention.

Description

小区切换方法及装置 本申请要求于 2008 年 9 月 22 日提交中国专利局、 申请号为 200810222691.4、 发明名称为 "小区切换方法及装置" 的中国专利申请的优 先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明实施例涉及通信领域, 尤其涉及一种小区切换方法及装置。 背景技术
针对高速分组数据所具有的非对称性、峰值速率高、激活时间短等特点, 为了有效利用无线频谱资源以及提高下行峰值速率和小区吞吐量, 在第三代 移动通信伙伴计划( 3rd Generation Partnership Proj ect , 以下简称: 3 GPP ) 宽 带码分多址( Wideband Code Division Multiple Access , 以下简称: WCDMA ) R5版本中, 引入了高速下行分组接入技术( HSDPA )。 相应的, 新增了高速 物理下行共享信道来进行多用户共享的高速分组数据传输, 并采用自适应调 制编码、 快速物理层混合自动重传等技术。
为了提高小区中因特网协议承载的语音业务( Voice over IP, 以下简称: VOIP )或者高速分组接入承载的电路域业务( CS over HSPA )等实时业务的 容量,需要将信令业务承载在高速下行共享信道( High Speed Downlink Shared Channel , 以下简称: HS-DSCH ) 上, 而不能承载在专有信道 ( Dedicated Channel, 以下简称: DCH )上, 这样使得信令业务丧失了下行宏分集的增益, 导致用户设备( User Equipment, 以下简称: UE )在 HS-DSCH服务小区切换 过程中可能出现问题。
在 WCDMA R7 版本中引入了连续的包连接 ( Continuous Packet
Connectivity, 以下简称: CPC )技术, 使 UE和网络之间在没有数据传输的 非激活期间, 能够长时间地保持在连接态, 同时又很少地消耗空口资源。 在 WCDMA系统中, 限制同时在线用户数量的主要因素是上行干扰, 在现有的 WCDMA协议中, 当 UE处于专用信道连接态时, 无论是否有数据传输, 上 行的专用物理控制信道(Dedicated Physical Control Channel, 以下简称: DPCCH )会发送功率控制、 导频信号等控制信息, 这样, 就会对其他用户带 来上行干扰, 使得处于连接态的用户数量收到限制。 因此, 现有技术主要是 通过降低上行干扰, 来增加同时在线的用户数量。
为了降低 UE的上行控制信道干扰,在上行传输数据量低时,上行 DPCCH 可以进入非连续发送状态 ( Discontinuous Transmission, 以下简称: DTX ) 。 同时, 为了 UE省电, 在下行传输数据量低时, UE可以进入非连续接收状态 ( Discontinuous Receiving , 以下简称: DRX ) 。 CPC 模式由参数 UE—DTX—DRX— Enable指示开或关( TRUE为开, FALSE为关)。 在 CPC中 分为非连续上行 DPCCH发送操作和非连续下行接收操作, 可以分别由参数 UL—DTX— Active和 DL—DRX— Active来指示是否打开 ( TRUE或 FALSE, 其 中只有 UL—DTX— Active为 TRUE的情况下, DL—DRX— Active才能为 TRUE )。 对于非连续下行接收操作,协议中定义了一些参数,其中包括 UE—DRX— cycle, 表示 HS-DSCH共享控制信道( Shared Control Channel for HS-DSCH, 以下简 称: HS-SCCH )接收图样(HS-SCCH reception pattern )的子帧长度, 也就是 说表示 UE过多少个子帧允许监听 HS-SCCH, 其可能的取值是 4、 5、 8、 10、 16、 20个子帧。
现有技术中提供了一种小区切换的技术方案, 主要包括如下步骤: 1 )无 线网络控制器( Radio Network Controller, 以下简称: RNC )根据 UE上才艮的 事件 1A进行切换预准备建立无线连接, 并在激活集更新确认消息中下发所 有激活集小区的配置信息, 进行激活集更新; 2 ) RNC根据 UE上报的事件 1D进行切换判决, 并利用无线链路(Radio Link, 以下简称: RL )重配置执 行消息激活目标小区的基站 (以下称为: 目标 NodeB )开始进行切换, 利用 RNC发送的重配置命令或目标 NodeB发送的 HS-SCCH命令指示 UE进行切 换; 3 )与此同时, UE在上报事件 1D后,开始监听目标 NodeB的 HS-SCCH; 4 ) UE在接收到目标 NodeB的 HS-SCCH命令或 RNC的重配置命令后,切换 到目标 NodeB。
在上述现有技术提供的小区切换的方案中, 若在步骤 2 )和 3 ) 中, UE 正处于 CPC模式下(即 UE—DTX—DRX— Enable为 TRUE ) , 并且下行不连续 接收状态打开(即 DL—DRX— Active为 TRUE ) , 则在 RNC发送重配置命令 或目标 NodeB发送 HS-SCCH命令时, 为了保证 UE能在允许接收的图样处 接收该重配置命令或 HS-SCCH命令, 需要根据 UE—DRX— cycle等待合适的 接收图样发送重配置命令或 HS-SCCH命令, 这样使得增加了小区切换过程 的时延, 导致较长时间的业务中断, 增加了掉话率, 影响了实时业务用户的 感受度。
在上述现有技术提供的小区切换的方案中, 步骤 2 )中 RNC发送的重配 置命令和目的 NodeB发送的 HS-SCCH命令均为切换指示命令, 网络可以选 择只发送两者中的一个, 也可以选择两者皆发送。 但是, 现有技术中没有提 供如何一种具体的实现方式用于通知目的 NodeB可以使用发送 HS-SCCH命 令的方式指示 UE进行服务小区切换, 当目的 NodeB没有发送 HS-SCCH命 令时, UE将根据 RNC发送的重配置命令进行原有的硬切换流程, 而非增强 HS-DSCH服务小区切换流程, 又由于原有的硬切换流程时延较大, 无法体现 增强 HS-DSCH服务小区切换时延较小、 快速的优点。 发明内容
本发明实施例提供了一种小区切换方法及装置, 用以减少小区切换过程 中的时延。
本发明实施例提供的小区切换方法, 包括: 用户设备发起小区切换; 如 果所述用户设备未处于下行非连续接收状态时, 在所述未处于下行非连续接 收状态下进行小区切换; 如果所述用户设备处于下行非连续接收状态时, 退 出所述下行非连续接收状态, 并在未处于下行非连续接收状态下进行小区切 换。 本发明实施例提供的小区切换装置, 包括: 发起模块, 用于发起小区切 换; 控制模块, 用于如果用户设备处于下行非连续接收状态时, 退出所述下 行非连续接收状态; 和切换模块, 用于如果所述用户设备未处于下行非连续 接收状态时, 或者在用户设备退出所述下行非连续接收状态后, 在未处于下 行非连续接收状态下进行小区切换。
本发明实施例提供的小区切换方法及装置, 在未处于下行非连续接收状 态下进行小区切换, 避免了在切换场景下, 由于处于下行非连续接收状态而 不能及时接收小区切换过程中的切换指示命令的问题, 从而减少了小区切换 过程中的时延, 避免了较长时间的业务中断, 减小了掉话率。 附图说明
图 1为本发明实施例一小区切换方法的流程图;
图 2为本发明实施例二小区切换方法的信令流程图;
图 3为本发明实施例三小区切换方法的流程图;
图 4为本发明实施例四小区切换方法的流程图;
图 5为本发明实施例五小区切换方法的流程图;
图 6为本发明实施例六小区切换装置的结构示意图;
图 7为本发明实施例七小区切换装置的结构示意图。 具体实施方式
下面通过附图和实施例, 对本发明实施例的技术方案做进一步的详细描 述。
实施例一
如图 1所示, 为本发明实施例一小区切换方法的流程图, 具体包括如下 步骤。
步骤 101、 用户设备发起小区切换。
步骤 102、 如果用户设备未处于下行非连续接收状态, 在未处于下行非 连续接收状态下进行小区切换。
步骤 103、 如果用户设备处于下行非连续接收状态, 退出下行非连续接 收状态, 并在未处于下行非连续接收状态下进行小区切换。
本实施例在未处于下行非连续接收状态下进行小区切换, 避免了在切换 场景下, 由于处于下行非连续接收状态而不能及时接收小区切换过程中的切 换指示命令的问题, 从而减少了小区切换过程中的时延, 避免了较长时间的 业务中断, 减小了掉话率。
实施例二
如图 2所示, 为本发明实施例二小区切换方法的信令流程图, 本实施例 以增强 HS-DSCH服务小区切换场景为例, 本实施例中参与小区切换的为服 务 RNC ( SRNC ) 。 本实施例具体包括如下步骤。
步骤 201、 UE发起小区切换; UE向 SRNC上报 1A事件。
步骤 202、 SRNC根据 UE上报的 1A事件进行切换预准备, 建立无线连 接, 并在激活集更新确认消息中下发所有激活集小区的配置信息, 进行激活 集更新。
其中配置信息包括 HS-DSCH相关配置信息及对应的 E-DCH配置信息。 步骤 203、 UE向 SRNC上报 1D事件。
步骤 204、 当 UE未处于下行非连续接收状态 (即 DL—DRX— Active为 FALSE ) 时, UE保持未处于下行非连续接收状态, 也就是说, UE不进入下 行非连续接收状态;
当 UE处于下行非连续接收状态(即 DL—DRX— Active为 TRUE )时, UE 退出下行非连续接收状态 (可通过将 DL—DRX— Active设置为 FALSE ) , UE 保持未处于下行非连续接收状态, 也就是说, UE不再进入下行非连续接收状 态。
本实施例中, UE可以控制或改变其所处的状态。
步骤 205、 UE监听目标小区的 HS-SCCH。
步骤 206、 SRNC根据 UE上报的 1D事件进行切换判决。 步骤 207、 SRNC利用 RL重配置执行消息激活目标 NodeB和源 NodeB 开始进行切换。
步骤 208、 目标 NodeB向 UE发送 HS-SCCH命令, 指示 UE进行小区切 换。
步骤 209、 SRNC向 UE发送重配置命令, 该重配置命名包括: 物理信道 重配置命令、 或传输信道重配置命令、 或无线承载重配置命令。
其中步骤 208和步骤 209中的 HS-SCCH命令和重配置命令均为切换指 示命令, 网络可以选择只发送 HS-SCCH命令或重配置命令, 或者两者皆发 送。
步骤 210、 UE正式切换到目标 NodeB。
若 UE接收到目标 NodeB下发的 HS-SCCH命令,可以接收到目标 NodeB 发送的 HS-SCCH 命令 40 毫秒后, 正式切换到目标 NodeB , 接收相关 HS-PDSCH数据;
若 UE接收到 SRNC 下发的重配置命令, 可以按照原有硬切换(Hard Handover, 以下简称: HHO ) 流程进行处理。
步骤 211、 SRNC根据相关时间点确定数据面路径切换( path switching ) 时间点。
步骤 212、 UE向 SRNC反馈重配置完成消息。 如果 UE处理了无线承载 重配置命令(Radio Bearer Reconfiguration, 以下简称: RBR ) , 则按照 RBR 规定的时间反馈该重配置完成消息, 否则按照接收到 HS-SCCH命令 40毫秒 后, 反馈该重配置完成消息。
至此, 小区切换成功, 本实施例在步骤 205〜步骤 212进行小区切换的 过程中, UE—直保持未处于下行非连续接收状态, 即 UE在未处于下行非 连续接收状态下进行小区切换,则在 SRNC发送重配置命令或目标 NodeB发 送 HS-SCCH命令时, 不需要等待合适的接收图样, 避免了在切换场景下, 由于处于下行非连续接收状态而不能及时接收小区切换过程中的切换指示命 令的问题, 从而减少了小区切换过程中的时延, 避免了较长时间的业务中断, 减小了掉话率, 提升了实时业务用户的感受度。
本实施例中, 上述步骤 204与步骤 202、 203之间没有执行顺序的限制, 可以在发起小区切换之后、 进行小区切换之前任意时间执行步骤 204。
进一步的, 本实施例在步骤 204中, 当 UE未处于下行非连续接收状态 或退出所述下行非连续接收状态时, 还可以启动设定时间, 在未处于下行非 连续接收状态下进行小区切换具体为在设定时间内 , UE在未处于下行非连续 接收状态下进行小区切换。 当执行完步骤 212小区切换成功后, 还未到设定 时间, 则取消该设定时间; 当还未执行到或执行完步骤 212, 而到达设定时 间时, 将 UE恢复到启动设定时间之前的状态。 上述设定时间可以采用定时 器。
也就是说, 当 UE未处于下行非连续接收状态时, UE在设定时间内(可 以在定时器超时之前)不能进入下行非连续接收状态, 直到小区切换成功后, 若还未到设定时间, 则取消该设定时间; 若到达设定时间后, UE还未能完成 HS-DSCH服务小区切换过程, 则 UE恢复到启动设定时间之前的未处于下行 非连续接收状态, 之后可根据网络配置指示进行相应行为, 例如: UE根据网 络指示进入下行非连续接收状态等;
当 UE处于下行非连续接收状态时,则 UE退出下行非连续接收状态,并 且 UE在设定时间内 (可以在定时器超时之前) 不能进入下行非连续接收状 态, 直到小区切换成功后, 若还未到设定时间, 则取消该设定时间; 若到达 设定时间后, UE还未能完成 HS-DSCH服务小区切换过程, 则 UE恢复到启 动设定时间之前的处于下行非连续接收状态(根据之前的各项 DRX参数延续 行为), 之后可根据网络配置指示进行相应行为, 例如: UE根据网络指示退 出下行非连续接收状态、 或更新 DRX参数等。
上述设定时间一般大于小区正常完成切换的时间, 在 UE侧启动设定时 间的方法使得在小区切换的过程中或设定时间内, UE—直未处于下行非连续 接收状态, 在正常的切换过程中, SRNC发送重配置命令或目标 NodeB发送 HS-SCCH命令时, 不需要等待合适的接收图样, 避免了在切换场景下, 由于 处于下行非连续接收状态而不能及时接收小区切换过程中的切换指示命令的 问题, 从而减少了小区切换过程中的时延, 避免了较长时间的业务中断, 减 小了掉话率, 提升了实时业务用户的感受度; 并且, 在小区切换出现异常时, 在设定时间内未完成切换过程, 能够将 UE恢复到启动设定时间之前的状态, 使得 UE能够进行其他相应行为。
在图 2所示的实施例二的基础上, 较优的实施方式是: 在步骤 207和步 骤 208之间还包括 SRNC向目标 NodeB发送信令,该信令中包含用于指示使 用增强服务小区切换流程的指示信息, 及时的通知目的 NodeB 可以使用向 UE发送 HS-SCCH命令的方式指示 UE进行服务小区切换, 使得在后续的切 换流程中使用增强服务小区切换流程的可能性大大提高, 减少了小区切换过 程中的时延。 进一步的, 该信令可以具体为基站应用部分协议 (NodeB Application Part , 以下简称: ΝΒ ΑΡ )信令, 该 ΝΒ ΑΡ信令可以为新的 ΝΒ ΑΡ 信令, 也可以包含新的信息单元( Information Element, 以下简称: IE ) , 在 新的 IE中携带第二指示信息。
在图 2所示的实施例二的基础上, 更优的实施方式是: 在步骤 207和步 骤 210之间还包括 SRNC向目标 NodeB发送信令, 该信令中包含用于指示 UE未处于 DRX状态的第一指示信息, 也就是说, SRNC告知目标 NodeB现 在 UE未处于 DRX状态, 可以随时向 UE发送切换指示命令。 进一步的, 该 信令可以为 NBAP信令, 该 NBAP信令可以为新的 NBAP信令, 也可以包含 新的 IE, 在新的 IE中携带第一指示信息。
NodeB现在 UE未处于 DRX状态, 可以随时向 UE发送切换指示命令, 使得 目标 NodeB及时的获知 UE的状态, 进一步减小了切换过程中的时延。
实施例三
如图 3所示, 为本发明实施例三小区切换方法的流程图, 具体包括如下 步骤。
步骤 301、 UE发起小区切换; UE向 SRNC上报 1A事件。 步骤 302、 SRNC根据 UE上报的 1A事件进行切换预准备, 建立无线连 接, 并在激活集更新确认消息中下发所有激活集小区的配置信息, 进行激活 集更新。
其中配置信息包括 HS-DSCH相关配置信息及对应的 E-DCH配置信息。 步骤 303、 UE向 SRNC上报 1D事件。
步骤 304、 当 UE未处于下行非连续接收状态 (即 DL—DRX— Active为 FALSE ) 时, UE保持未处于下行非连续接收状态, 也就是说, UE 不进入 下行非连续接收状态。
步骤 305、当 UE处于下行非连续接收状态(即 DL—DRX— Active为 TRUE ) 时, UE退出下行非连续接收状态(可通过将 DL—DRX— Active设置为 FALSE ), 并 UE保持未处于下行非连续接收状态, 也就是说, UE不再进入下行非连续 接收状态。
本实施例中, UE可以控制或改变其所处的状态。
步骤 306、 UE监听目标小区的 HS-SCCH。
步骤 307、 SRNC根据 UE上报的 1D事件进行切换判决。
步骤 308、 SRNC利用 RL重配置执行消息激活目标 NodeB和源 NodeB 开始进行切换。
步骤 309、 SRNC向目标 NodeB发送 NBAP信令。 该 NBAP信令中包含 用于指示 UE未处于 DRX状态的第一指示信息和用于指示使用增强服务小区 切换流程的第二指示信息。
步骤 310、 目标 NodeB向 UE发送 HS-SCCH命令, 指示 UE进行增强服 务小区切换。
步骤 311、 UE正式切换到目标 NodeB。 UE接收到目标 NodeB下发的 HS-SCCH命令,可以在接收到目标 NodeB发送的 HS-SCCH命令 40毫秒后, 正式切换到目标 NodeB, 接收相关 HS-PDSCH数据。
步骤 312、 SRNC根据相关时间点确定数据面路径切换时间点。
步骤 313、UE在接收到 HS-SCCH命令 40毫秒后,反馈重配置完成消息。 本实施例在步骤 304和步骤 305中也可以启动设定时间, 可参照实施例 二中关于设定时间的描述。
本实施例中, 在进行小区切换过程中, UE—直保持未处于下行非连续 接收状态, 即在小区切换成功前, UE保持未处于下行非连续接收状态, 则在 目标 NodeB发送 HS-SCCH命令时, 不需要等待合适的接收图样, 避免了在 切换场景下, 由于处于下行非连续接收状态而不能及时接收小区切换过程中 的切换指示命令的问题, 从而减少了小区切换过程中的时延, 避免了较长时 间的业务中断,减小了掉话率,提升了实时业务用户的感受度;同时,在 NBAP 信令中包含用于指示使用增强服务小区切换流程的第二指示信息, 及时的通 知目的 NodeB可以使用向 UE发送 HS-SCCH命令的方式指示 UE进行服务 小区切换, 使得在后续的切换流程中使用增强服务小区切换流程的可能性大 大提高, 减少了小区切换过程中的时延; 并且, 在 NBAP信令中包含用于指 示 UE未处于 DRX状态的第一指示信息, 告知目标 NodeB现在 UE未处于 DRX状态, 可以随时向 UE发送切换指示命令, 使得目标 NodeB及时的获知 UE的状态, 进一步减小了切换过程中的时延。
实施例四
如图 4所示, 为本发明实施例四小区切换方法的流程图, 具体包括如下 步骤。
步骤 401、 接收小区切换发起命令。
步骤 402、 激活目标基站, 并向目标 NodeB发送包含指示信息的信令; 该指示信息用于指示目标 NodeB和 UE使用增强服务小区切换流程进行小区 切换。
在步骤 402之后还可以包括: 步骤 403、 根据指示信息, 目标 NodeB和 UE按照增强服务小区切换流程进行切换。
本实施例中, 通过信令及时的通知目标 NodeB 可以使用向 UE 发送
HS-SCCH命令的方式指示 UE进行服务小区切换, 使得后续切换流程使用增 强服务小区切换流程的可能性大大提高, 减小了小区切换过程中的时延。 实施例五
如图 5所示, 为本发明实施例五小区切换方法的流程图, 具体包括如下 步骤。
步骤 501、 SRNC接收 UE上报的 1A事件。
步骤 502、 SRNC根据 UE上报的 1A事件进行切换预准备, 建立无线连 接, 并在激活集更新确认消息中下发所有激活集小区的配置信息, 进行激活 集更新。
步骤 503、 SRNC接收 UE上报的 1D事件, 进行切换判决。
步骤 504、 SRCN利用 RL重配置执行消息激活目标 NodeB和源 NodeB 开始进行切换。
步骤 505、 SRNC向目标 NodeB发送包含用于指示使用增强服务小区切 换流程的指示信息的信令; 该信令可以为 NBAP信令。 其中 NBAP信令可以 为新的 NBAP信令, 也可以在原有的 NBAP信令中增加新的 IE, 在新的 IE 中携带该指示信息。
步骤 506、 目标 NodeB根据步骤 505中的信令, 向 UE发送 HS-SCCH命 令, 指示 UE进行增强服务小区切换。
步骤 507、 UE正式切换到目标 NodeB。
步骤 508、 SRNC根据相关时间点确定数据面路径切换时间点。
步骤 509、 UE在接收到 HS-SCCH命令 40毫秒后,反馈重配置完成消息。 本实施例的小区切换过程中 ,通过 NBAP信令及时的通知目标 NodeB可 以使用向 UE发送 HS-SCCH命令的方式指示 UE进行服务小区切换,使得后 续切换流程使用增强服务小区切换流程的可能性大大提高, 减小了小区切换 过程中的时延。
实施例六
如图 6所示, 为本发明实施例六小区切换装置的结构示意图, 本实施例 的切换装置可以具体为 UE, 包括发起模块 11、 控制模块 12和切换模块 13 , 其中发起模块 11发起小区切换; 如果 UE未处于下行非连续接收状态时, 控 制模块 12退出该下行非连续接收状态;如果 UE处于下行非连续接收状态时, 或者控制模块 12控制退出下行非连续接收状态后, 切换模块 13在未处于下 行非连续接收状态下进行小区切换。
其中切换模块 13还可以在小区切换成功前, 保持 UE未处于下行非连续 接收状态。
本实施例还可以包括定时模块 14, 当 UE未处于下行非连续接收状态或 退出下行非连续接收状态时, 定时模块 14启动设定时间; 切换模块 13在设 定时间内, 保持未处于下行非连续接收状态。
本实施例还可以包括取消模块 15或恢复模块 16, 其中若在设定时间内 小区切换成功, 取消模块 15取消定时模块 14的设定时间; 若在设定时间内 小区切换未成功, 恢复模块 16在到达设定时间后, 恢复到启动设定时间之前 的状态。
本实施例可以在小区切换的过程中, UE—直保持未处于下行非连续接收 状态,使得在 RNC发送重配置命令或目标 NodeB发送 HS-SCCH命令时, 不 需要等待合适的接收图样, 避免了在切换场景下, 由于处于下行非连续接收 状态而不能及时接收小区切换过程中的切换指示命令的问题, 从而减少了小 区切换过程中的时延, 避免了较长时间的业务中断, 减小了掉话率, 提升了 实时业务用户的感受度; 通过定时模块 14启动设定时间, 使得当小区切换出 现异常时, 能将 UE恢复到启动设定时间之前的状态, 进而能够进行其他相 应行为。
实施例七
如图 7所示, 为本发明实施例七小区切换装置的结构示意图, 本实施例 中的切换装置可以具体为 SRNC, 包括: 接收模块 21、 激活模块 22和指示模 块 23 ,其中接收模块 21接收小区切换发起命令;激活模块 22激活目标 NodeB; 指示模块 23向目标 NodeB发送包含指示信息的信令; 该指示信息用于指示 目标 NodeB和 UE使用增强服务小区切换流程进行小区切换和 /或指示 UE未 处于下行非连续接收状态。 本实施例在小区切换过程中,通过指示模块 23发送的包含用于指示目标 NodeB和 UE使用增强服务小区切换流程进行小区切换指示信息的信令(该 信令可以为 NBAP 信令) , 及时的通知目标 NodeB 可以使用向 UE发送 HS-SCCH命令的方式指示 UE进行服务小区切换, 使得后续切换流程使用增 强服务小区切换流程的可能性大大提高, 减小了小区切换过程中的时延; 和 / 或, 通过指示模块 23发送的包含用于指示 UE未处于下行非连续接收状态的 信令,告知目标 NodeB现在 UE未处于 DRX状态, 可以随时向 UE发送切换 指示命令, 减小了切换过程中的时延。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤, 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。 非对其限制; 尽管参照前述实施例对本发明实施例进行了详细的说明, 本领 域的普通技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案 进行修改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不使相应技术方案的本质脱离本发明实施例各实施例技术方案的精神和范 围。

Claims

权 利 要 求
1、 一种小区切换方法, 其特征在于, 包括:
用户设备发起小区切换;
如果所述用户设备未处于下行非连续接收状态时, 在所述未处于下行非 连续接收状态下进行小区切换;
如果所述用户设备处于下行非连续接收状态时, 退出所述下行非连续接 收状态, 并在未处于下行非连续接收状态下进行小区切换。
2、 根据权利要求 1 所述的小区切换方法, 其特征在于, 所述在未处于 下行非连续接收状态下进行小区切换具体为: 在小区切换成功前, 保持未处 于下行非连续接收状态。
3、 根据权利要求 1 所述的小区切换方法, 其特征在于, 还包括: 当所 述用户设备未处于下行非连续接收状态或退出所述下行非连续接收状态时, 启动设定时间;
所述在未处于下行非连续接收状态下进行小区切换具体为: 在所述设定 时间内, 所述用户设备在未处于下行非连续接收状态下进行小区切换。
4、 根据权利要求 3所述的小区切换方法, 其特征在于, 若在所述设定 时间内小区切换成功, 所述方法还包括: 在小区切换成功后, 所述用户设备 取消所述设定时间。
5、 根据权利要求 3所述的小区切换方法, 其特征在于, 若在所述设定 时间内小区切换未成功, 所述方法还包括: 在到达所述设定时间后, 所述用 户设备恢复到启动所述设定时间之前的状态。
6、 根据权利要求 3或 4或 5所述的小区切换方法, 其特征在于, 所述 启动设定时间包括: 启动定时器。
7、 根据权利要求 1-5 任一所述的小区切换方法, 其特征在于, 在进行 小区切换之前还包括:
无线网络控制器 RNC 向目标基站发送包含用于指示所述用户设备未处 于下行非连续接收状态的第一指示信息的信令。
8、 根据权利要求 7所述的小区切换方法, 其特征在于, 所述信令中还 包含用于指示使用增强服务小区切换流程的第二指示信息。
9、 根据权利要求 1-5 任一所述的小区切换方法, 其特征在于, 在进行 小区切换之前还包括:
无线网络控制器 RNC 向目标基站发送包含用于指示使用增强服务小区 切换流程的第二指示信息的信令。
10、 一种小区切换装置, 其特征在于包括:
发起模块, 用于发起小区切换;
控制模块, 用于如果用户设备处于下行非连续接收状态时, 退出所述下 行非连续接收状态; 和
切换模块, 用于如果所述用户设备未处于下行非连续接收状态时, 或者 在用户设备退出所述下行非连续接收状态后, 在未处于下行非连续接收状态 下进行小区切换。
11、 根据权利要求 10所述的小区切换装置, 其特征在于, 所述切换模 块还用于在小区切换成功前, 保持所述未处于下行非连续接收状态。
12、 根据权利要求 10所述的小区切换装置, 其特征在于还包括定时模 块, 用于当所述用户设备未处于下行非连续接收状态或退出所述下行非连续 接收状态时, 启动设定时间;
所述切换模块还用于在设定时间内, 保持未处于下行非连续接收状态。
13、 根据权利要求 12所述的小区切换装置, 其特征在于还包括取消模 块, 用于若在所述设定时间内小区切换成功后, 取消所述定时模块的设定时 间。
14、 根据权利要求 12所述的小区切换装置, 其特征在于还包括恢复模 块, 用于若在所述设定时间内小区切换未成功, 则在到达所述设定时间后, 恢复到启动所述设定时间之前的状态。
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