WO2013166935A1 - Procédé et dispositif permettant de mettre en œuvre un transfert de cellule - Google Patents

Procédé et dispositif permettant de mettre en œuvre un transfert de cellule Download PDF

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Publication number
WO2013166935A1
WO2013166935A1 PCT/CN2013/075108 CN2013075108W WO2013166935A1 WO 2013166935 A1 WO2013166935 A1 WO 2013166935A1 CN 2013075108 W CN2013075108 W CN 2013075108W WO 2013166935 A1 WO2013166935 A1 WO 2013166935A1
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WO
WIPO (PCT)
Prior art keywords
csg cell
csg
terminal
plmn
handover
Prior art date
Application number
PCT/CN2013/075108
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English (en)
Chinese (zh)
Inventor
赵旸
舒林
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2013166935A1 publication Critical patent/WO2013166935A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • the present invention claims the priority of the Chinese patent application filed on May 8, 2012, the Chinese Patent Office, the application number is 201210139607.9, and the invention name is "a method and device for realizing cell handover". The entire contents of which are incorporated herein by reference.
  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for implementing cell handover.
  • BACKGROUND With the development of mobile communication technologies, user demands are increasingly showing a diversified trend. In order to meet the diverse needs of users, home base stations (HNB, Home NodeB; HENB, Home eNodeB) have become the most promising low-cost access methods.
  • the terminal when a home base station exists in the network, the terminal can be handed over from the macro cell to the HNB/HeNB cell.
  • the common handover mode is mainly: the terminal is based on the currently registered PLMN (Public Land Mobile Network, public land mobile The communication network) or its equivalent PLMN performs a CSG (Closed Subscriber Grou) member check; when the terminal detects that the CSG ID and the PLMN ID of the HNB/HeNB cell (CSG cell) are present in the admission list, and the PLMN When the ID indicates that the PLMN is the currently registered PLMN or its equivalent PLMN, the terminal reports the PLMN ID and CSG ID of the HNB/HeNB cell to the BSS (Base Station Subsystem), and then the BSS will use the HNB/HeNB cell.
  • PLMN Public Land Mobile Network, public land mobile The communication network
  • CSG cell Cell
  • the terminal reports the PLMN ID and CSG ID of the HNB/HeNB cell to the BSS (Base Station
  • the PLMN ID and the CSG ID are sent to the core network in the handover request, and the core network performs the CSG check according to the subscription data obtained from the HSS (Home Subscriber Server). If the CSG check passes, The terminal is handed over from the PLMN macro cell to the HNB/HeNB cell, otherwise the handover reject message is sent to the BSS, and the handover fails.
  • HSS Home Subscriber Server
  • Embodiments of the present invention provide a method and apparatus for implementing cell handover.
  • the terminal or the network side device can learn whether the core network can perform access detection, and effectively avoid invalid signaling and transmission. Overhead, reducing the switching failure rate.
  • the present invention provides a method for implementing cell handover, including:
  • the source MSC acquires the closed subscriber group CSG cell handover indication information of the target public land mobile communication network PLMN; the source MSC sends the CSG cell handover indication information to the terminal or the network side device, so that the terminal or the network side device according to the CSG Cell handover indication determines whether to perform
  • the present invention further provides a method for implementing cell handover, including:
  • the terminal receives and saves the CSG cell handover indication information by the network side device.
  • the terminal detects the home base station cell, it determines whether to perform the CSG check and the uplink according to the CSG cell handover indication information.
  • the present invention further provides a method for implementing cell handover, including:
  • the BSS receives and saves the CSG cell handover indication information by the network side device.
  • the BSS determines whether to initiate the CSG cell handover procedure according to the received CSG cell handover indication information.
  • the present invention further provides a method for implementing cell handover, including:
  • the network side device receives the CSG cell handover indication information sent by the external device;
  • the CSG cell handover indication information is notified to the terminal by the dedicated signaling, so that the terminal determines whether to perform CSG check and report according to the CSG cell handover indication information when detecting the home base station cell.
  • the present invention further provides a mobile switching center MSC, including: an obtaining unit and a notifying unit; wherein the acquiring unit is configured to acquire closed user group CSG cell switching indication information of a target public land mobile communication network PLMN; The notification unit is configured to send the CSG cell handover indication information acquired by the acquiring unit to the terminal or the network side device, so that the terminal or the network side device determines whether to perform a CSG cell handover operation according to the CSG cell handover indication.
  • a mobile switching center MSC including: an obtaining unit and a notifying unit; wherein the acquiring unit is configured to acquire closed user group CSG cell switching indication information of a target public land mobile communication network PLMN; The notification unit is configured to send the CSG cell handover indication information acquired by the acquiring unit to the terminal or the network side device, so that the terminal or the network side device determines whether to perform a CSG cell handover operation according to the CSG cell handover indication.
  • the present invention further provides a mobile switching center MSC, including: a first receiving unit and a first notification unit; wherein the first receiving unit is configured to receive, by the network side device, CSG cell handover indication information; The first notification unit is configured to notify the terminal of the CSG cell handover indication information by using dedicated signaling, so that the terminal determines whether to perform CSG check and report according to the CSG cell handover indication information when detecting the home base station cell.
  • a mobile switching center MSC including: a first receiving unit and a first notification unit; wherein the first receiving unit is configured to receive, by the network side device, CSG cell handover indication information; The first notification unit is configured to notify the terminal of the CSG cell handover indication information by using dedicated signaling, so that the terminal determines whether to perform CSG check and report according to the CSG cell handover indication information when detecting the home base station cell.
  • the present invention further provides a terminal device, including: a second receiving unit and a determining unit, where the second receiving unit is configured to receive and save a CSG cell switching indication information sent by a network side device; And determining, when the home base station cell is detected, whether to perform CSG check and report according to the CSG cell handover indication information received by the second receiving unit.
  • the present invention further provides a base station subsystem BSS, including: a third receiving unit and a switching unit; wherein the third receiving unit is configured to receive and save a CSG cell handover indication information sent by a network side device;
  • the switching unit is configured to determine, according to the CSG cell handover indication information received by the third receiving unit, whether to initiate a CSG cell handover procedure, when receiving the CSG measurement report reported by the terminal.
  • the CSG cell handover indication information of the target PLMN is obtained by the method and the device in the embodiment of the present invention, and the CSG cell handover indication information is sent to the terminal or network side that initiates the CSG handover.
  • Device to enable the originating CSG cell The switched terminal or the network side device can determine whether the CSG cell handover operation needs to be performed according to the CSG cell handover indication information, thereby greatly reducing unnecessary measurement reports and handover procedures, thereby effectively reducing the handover failure rate and reducing unnecessary air interfaces. Signaling and transmission overhead.
  • FIG. 1 is a schematic flowchart of a method for implementing cell handover according to Embodiment 2 of the present invention
  • FIG. 2 is a schematic flowchart of a method for implementing cell handover according to Embodiment 3 of the present invention
  • FIG. 3 is a schematic flowchart of a method for implementing cell handover according to Embodiment 4 of the present invention.
  • FIG. 4 is a schematic flowchart of a method for implementing cell handover according to Embodiment 5 of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus of an MSC according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the first embodiment of the present invention provides a method for implementing cell handover, which specifically includes: the source mobile switching center MSC acquires closed user group CSG cell handover indication information of the target public land mobile communication network PLMN;
  • the source MSC determines whether the source MSC has a CSG admission list of the target PLMN to determine whether it can currently support. The terminal is handed over by the target PLMN to its internal CSG cell. When the MSC determines that the MSC does not have the CSG admission list of the target PLMN, it determines that the terminal cannot be supported by the target PLMN to switch to the CSG cell therein, and the handover indication message indicates that the direct or indirect indication cannot be implemented by the PLMN to the internal CSG cell handover.
  • the MSC determines that the MSC has a CSG admission list of the target PLMN, it determines that the terminal can be currently supported by the target PLMN to switch to its internal CSG cell, and the handover indication message indicates that the direct or indirect indication can be implemented by the PLMN to the internal CSG cell handover.
  • the source MSC sends the CSG cell handover indication information to the terminal or the network side device, so that the terminal or the network side device determines whether to perform the CSG cell handover operation according to the CSG cell handover indication.
  • the second embodiment of the present invention provides a method for implementing cell handover. As shown in FIG. 1, the method includes:
  • Step 110 The source MSC acquires the CSG cell handover indication information of the target PLMN.
  • the CSG cell handover indication information of the target PLMN may be obtained in the following manner, but is not limited thereto:
  • the source MSC When performing a CS (circuit switching) handover procedure, the source MSC receives a HO required (Handover Request) message of the source BSS, and extracts a target PLMN ID from the target cell ID carried in the handover request message, if the PLMN ID If the PLMN is a new PLMN, the handover can be known as a cross-PLMN handover; if the PLMN ID indicates that the PLMN is a source PLMN, it can be known that the handover is not a cross-PLMN handover.
  • a HO required (Handover Request) message of the source BSS When performing a CS (circuit switching) handover procedure, the source MSC receives a HO required (Handover Request) message of the source BSS, and extracts a target PLMN ID from the target cell ID carried in the handover request message, if the PLMN ID If the PLMN is a new PLMN, the handover can be known as a
  • the handover is a cross-PLMN handover and the source MSC does not have a CSG admission list of the target PLMN, it can be known that the handover of the terminal from the target PLMN to the internal CSG cell cannot be currently supported; wherein, the new reference in this embodiment
  • the PLMN refers to other PLMNs that are different from the currently registered PLMN, and will not be described here.
  • the HSS may obtain the subscription of the terminal from the HSS. Data information; if the acquisition of the relevant subscription data information fails, it may also be determined that the terminal cannot be currently supported by the target PLMN to switch to its internal CSG cell.
  • Step 120 Send the CSG cell handover indication information to the terminal or the network side device.
  • the HO CMD may be utilized.
  • the CSG cell handover indication information is notified to the terminal by the BSS, and the CSG cell handover indication information may be notified to the target MSC by using a MAP protocol message, so that the target MSC passes the HO request message to the CSG cell.
  • the handover indication information is notified to the target BSS.
  • the CSG cell handover indication information may be sent to the terminal or the network side device in a signaling interaction manner, and the terminal or the network side device may not be implemented to implement the CSG from the target PLMN to the internal CSG.
  • the cell handover is not specifically limited in this embodiment.
  • the network side device includes but is not limited to: a target MSC and/or a target BSS, etc.; After the source MSC notifies the handover indication information to the target MSC, the target MSC may In other indication information to the target BSS, the target BSS to reserve the switching instruction information until the CS service released.
  • the CSG cell handover indication information mentioned in this embodiment may directly indicate whether a subsequent CSG cell handover operation can be performed.
  • the CSG cell handover indication information may further include a CSG admission list of the PLMN saved by the source MSC. Or a PLMN list, so that the terminal or the network side device uses the CSG admission list or the PLMN list of the PLMN to determine whether to perform a subsequent CSG cell handover operation, and details are not described herein again.
  • the switching command, the MAP protocol information, the signaling, and the like, which are used to notify the terminal or the network side device, may be only one bit of the indication message; of course, this is not specifically limited in the actual application process.
  • Step 130 In the process of the CS service, the terminal or the network side device determines, according to the CSG cell handover indication information, whether to perform the CSG cell handover procedure.
  • the terminal After receiving the CSG cell handover indication information, the terminal performs a normal macro cell. a handover procedure; after the macro cell handover is completed, the terminal performs a CS service in a cell of the target PLMN, and saves the CSG cell handover indication information until the CS service is released.
  • the terminal when the terminal detects the HNB/HeNB cell, it determines whether to perform CSG check and report according to the CSG cell handover indication information: if the CSG cell handover indication information indicates that the terminal cannot be supported currently If the target PLMN switches to its internal CSG cell, the terminal does not perform CSG check and report to avoid handover failure; when the CSG cell handover indication information indicates that the current support terminal is switched by the target PLMN to its internal CSG cell, Performing a CSG check and reporting process to complete the subsequent handover of the target PLMN to its internal CSG cell;
  • the network side device After receiving the CSG cell handover indication information, the network side device performs a normal macro cell handover procedure. If the network side device receives the CSG measurement report reported by the terminal, Determining whether to initiate a handover procedure according to the received CSG cell handover indication information, and notifying the terminal of the determination result;
  • the network side device After the CSG cell handover indication information is received, the network side device performs a normal macro cell handover procedure; and the CSG cell handover indication information is notified to the terminal by using dedicated signaling, so that the terminal is detecting the HNB.
  • the /HeNB cell determines whether to perform CSG check and report according to the indication information, thereby saving signaling overhead and avoiding handover failure.
  • the source MSC-A sends the CSG cell handover indication information of the target PLMN to the terminal by using the HO CMD command, and notifies the terminal that the handover of the target PLMN-B to the CSG cell by the target PLMN-B cannot be supported at this time.
  • the terminal After receiving the CSG cell handover indication information by using the HO CMD, the terminal performs a normal macro cell handover procedure, and performs a CS service in the cell of the target PLMN-B, and saves the CSG cell handover indication information;
  • the terminal detects the HNB/HeNB cell, it is determined that the handover of the target PLMN-B to the internal CSG cell cannot be implemented according to the CSG cell handover indication information, so the terminal does not perform CSG check and report to avoid the handover failure. . (Additional content that can be switched)
  • the target cell ID carried in the HO required message sent by the source MSC-A from the source BSS learns that the handover is a cross-PLMN handover. Meanwhile, the source MSC-A does not save the CSG cell admission list of the target PLMN-B. Then, the source MSC-A can learn that the terminal cannot be supported by the target PLMN-B to switch to the CSG cell inside thereof.
  • the source MSC-A sends the CSG cell handover indication information of the target PLMN-B to the target MSC-B by using the MAP protocol information.
  • the target MSC-B notifies the target BSS-B of the CSG cell handover indication information by using the HO request message, and the target BSS-B reserves the CSG cell handover indication information until the CS service release.
  • S410 The target cell ID carried in the HO required message sent by the source MSC-A from the source BSS learns that the handover is a cross-PLMN handover.
  • the source MSC-A sends the CSG admission list of the target PLMN-B to the target MSC-B through the MAP protocol information.
  • S430 Perform CSG check and report when the terminal detects the HNB/HeNB cell.
  • the target BSS-B initiates a CSG handover procedure to the target MSC-B after receiving the information reported by the terminal.
  • the target MSC-B After receiving the handover request of the target BSS-B, the target MSC-B determines, according to the CSG admission list of the target PLMN-B received from the MSC-A, the CSG cell on the terminal. Whether to support handover, if not supported, instructing the target BSS-B to terminate the CSG handover procedure.
  • the CSG cell handover indication information of the target PLMN is obtained in the process of the cross-PLMN handover, and the CSG cell handover indication information is sent to the terminal or the network side device that initiates the CSG handover.
  • the terminal or the network side device that initiates the CSG cell handover can determine whether the CSG cell handover operation needs to be performed according to the CSG cell handover indication information, thereby substantially reducing unnecessary measurement reports and handover procedures, thereby effectively reducing handover failure. Rate, reducing unnecessary air interface signaling and transmission overhead.
  • the embodiment of the present invention also provides an MSC.
  • the MSC 500 includes: an obtaining unit 510 and a notification unit 520;
  • the acquiring unit 510 is configured to acquire the closed user group CSG cell handover indication information of the target public land mobile communication network PLMN; the notification unit 520 is configured to send the CSG cell handover indication information acquired by the acquiring unit 510 to the terminal or And the network side device, so that the terminal or the network side device determines whether to perform a CSG cell handover operation according to the CSG cell handover indication.
  • the obtaining unit 510 may further include (not shown in the figure): a receiving module, an extracting module a block and a judging module; wherein, when performing a CS (circuit switching) switching process, the receiving module is configured to receive a handover request of a source base station subsystem BSS; and the extracting module is configured to carry from the handover request message
  • the target PLMN identifier is extracted from the target cell identifier; the determining module is configured to determine, according to the PLMN identifier, whether the PLMN is a new PLMN, and when the PLMN is a new PLMN, the CSG admission list of the target PLMN is not saved at the same time. Then, it is determined that the terminal cannot be supported by the target PLMN to switch to the internal CSG cell.
  • the new PLMN mentioned in this embodiment refers to another PLMN that is different from the currently registered PLMN, and details are not described herein again.
  • the notification unit 520 may further include (not shown in the figure): a generating module and a sending module, where the generating module is configured to generate a handover command, a MAP protocol message, or a special message including the CSG cell handover indication information.
  • the signaling module is configured to send the handover command, the MAP protocol message, or the dedicated signaling generated by the generating module to the terminal or the network side device; specifically, the sending module may use the HO CMD (switching command) Notifying the CSG cell handover indication information to the terminal by using the BSS, or notifying the CSG cell handover indication information to the target MSC by using a MAP protocol message, so that the target MSC sends the CSG cell handover indication by using the HO request message.
  • HO CMD switching command
  • the information is sent to the target BSS.
  • the CSG cell handover indication information may be sent to the terminal or the network side device by means of the signaling interaction mode, and the terminal or the network side device may not be able to implement the handover from the target PLMN to the internal CSG cell. This embodiment is not specifically limited.
  • the MSC when the MSC is the target MSC, it may further include or at least include (not shown in the figure): a first receiving unit and a first notification unit; wherein the first receiving unit is configured to receive the network side
  • the device sends CSG cell handover indication information, where the first notification unit is configured to notify the terminal of the CSG cell handover indication information by using dedicated signaling, so that the terminal detects the handover of the home base station cell according to the CSG cell handover indication.
  • the information determines whether to perform CSG check and report.
  • the CSG cell handover indication information mentioned in this embodiment may be directly Indicates whether a subsequent CSG cell handover operation can be performed.
  • the CSG cell handover indication information may further include a CSG admission list or a PLMN list of the PLMN held by the source MSC, so that the terminal or network side device utilizes the CSG admission of the PLMN.
  • the list or the PLMN list is used to determine whether to perform a subsequent CSG cell handover operation, and details are not described herein again.
  • the embodiment of the present invention also provides a terminal device, which includes (not shown): a second receiving unit and a determining unit; wherein the second receiving unit is configured to receive and save The network side device sends CSG cell handover indication information; the determining unit is configured to: when the home base station cell is detected, determine whether to perform CSG check and report according to the CSG cell handover indication information received by the second receiving unit:
  • the CSG cell handover indication information indicates that the terminal cannot be supported by the target PLMN to switch to the CSG cell in the internal terminal, and the terminal does not perform CSG check and report to avoid the handover failure; when the CSG cell handover indication information indicates that the current support terminal is When the target PLMN switches to its internal CSG cell, the CSG check and the above procedure are performed to complete the subsequent handover of the target PLMN to its internal CSG cell.
  • the embodiment of the present invention further provides a BSS, where the BSS includes (not shown): a third receiving unit and a switching unit, where the third receiving unit is configured to receive and save a network side device to send a CSG.
  • the cell handover indication information is used by the handover unit to determine whether to initiate a CSG cell handover procedure according to the CSG cell handover indication information received by the third receiving unit when receiving the CSG measurement report reported by the terminal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte à un procédé et à un dispositif permettant de mettre en œuvre un transfert de cellule. Le procédé consiste à : obtenir des informations d'indication de transfert de cellule de groupe fermé d'abonnés (CSG pour Closed Subscriber Group) d'un réseau mobile terrestre public (PLMN pour Public Land Mobile Network) cible ; et envoyer les informations d'indication de transfert de cellule de groupe CSG à un terminal ou à un dispositif côté réseau de sorte à permettre au terminal ou au dispositif côté réseau de déterminer, selon les informations d'indication de transfert de cellule de groupe CSG, s'il faut, ou non, exécuter une opération de transfert de cellule de groupe CSG. Par adoption du procédé et du dispositif des modes de réalisation de la présente invention, des rapports de mesure inutiles et des traitements de transfert intercellulaire peuvent être fortement réduits de sorte à réduire de manière efficace un taux d'échecs de transfert intercellulaire et à réduire une signalisation d'interface radio inutile et un surdébit de transmission.
PCT/CN2013/075108 2012-05-08 2013-05-03 Procédé et dispositif permettant de mettre en œuvre un transfert de cellule WO2013166935A1 (fr)

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EP3709714B1 (fr) * 2017-11-13 2022-05-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé et dispositif de déclenchement de commutation de réseau
CN110324872B (zh) * 2018-03-30 2022-03-25 维沃移动通信有限公司 用于小区变换的方法和设备

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CN101742582A (zh) * 2008-11-04 2010-06-16 华为技术有限公司 一种获取终端支持csg能力的方法、***及装置
CN101932066A (zh) * 2009-06-23 2010-12-29 华为技术有限公司 信息获取方法及核心管理网元
CN101998485B (zh) * 2009-08-18 2013-12-04 华为技术有限公司 一种跨网络选择闭合用户群组的方法、终端和接入网设备
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