WO2009114988A1 - Procédé, dispositif et système de notification d'informations de cellule voisine du système hétérogène à un terminal utilisateur - Google Patents

Procédé, dispositif et système de notification d'informations de cellule voisine du système hétérogène à un terminal utilisateur Download PDF

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Publication number
WO2009114988A1
WO2009114988A1 PCT/CN2009/000268 CN2009000268W WO2009114988A1 WO 2009114988 A1 WO2009114988 A1 WO 2009114988A1 CN 2009000268 W CN2009000268 W CN 2009000268W WO 2009114988 A1 WO2009114988 A1 WO 2009114988A1
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WO
WIPO (PCT)
Prior art keywords
information
network device
different system
capability
neighbor cell
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Application number
PCT/CN2009/000268
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English (en)
Chinese (zh)
Inventor
王小奇
武欣
刘佳
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中国移动通信集团公司
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Publication of WO2009114988A1 publication Critical patent/WO2009114988A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method, a network device, and a system for notifying a user terminal of different system neighbor cell information. Background technique
  • the GSM system is generally referred to as the 2G (2nd Generation Mobile Communication) system.
  • the 3G (The 3rd Generation Mobile Communication) system using CDMA (Code Division Multiple Access) technology has also entered or will enter the commercial stage.
  • the 3G system is based on the WCDMA (Wideband CDMA) standard, the TD-SCDMA (Time Division-Synchronous CDMA) standard, and the CDMA2000 standard.
  • WCDMA Wideband CDMA
  • TD-SCDMA Time Division-Synchronous CDMA
  • CDMA2000 Code Division Multiple Access
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • the cell reselection and handover between different systems requires the network side to provide the parameter information required for inter-system cell reselection and handover to the UE (User Equipment), which is also called the heterogeneous system neighbor cell information, including the frequency point, Information such as codewords, synchronization timing, etc., so that the UE can understand the signal shield of the neighboring cell of the different system, and can reselect or switch to the neighboring cell of the different system when needed.
  • UE User Equipment
  • the heterogeneous system neighbor cell information including the frequency point, Information such as codewords, synchronization timing, etc.
  • the TD-SCDMA system can be referred to as TD for short.
  • SI2quater System Information Type2 quater
  • the GSM system passes the system message SI2quater (System Information Type2 quater) broadcasts the eNB cell's different system neighbor cell information, that is, TD cell information, on the BCCH (Broadcasting Channel).
  • the contents of the SI2quater message are shown in Table 1, including: L2 Pseudo Length, RR Management Protocol Discriminator, Skip Indicator, System Information Type 2quater Message Type Information type 2 quater message type), SI 2 quater Rest Octets, five entries, wherein the entry SI 2 quater Rest Octets indicates the different system neighbor cell information.
  • the UEs in the GSM cell include GSM terminals (also referred to as 2G terminals), terminals supporting GSM-TD dual mode, terminals supporting GSM-WCDMA mode, and the like.
  • GSM terminals also referred to as 2G terminals
  • terminals supporting GSM-TD dual mode terminals supporting GSM-WCDMA mode, and the like.
  • the embodiment of the invention provides a method, a network device and a system for notifying a user terminal of different system neighboring cell information, and solves the problem that an abnormal phenomenon such as a crash or a restart occurs in some user terminals when the network side broadcasts the neighboring cell information of the different system.
  • An embodiment of the present invention provides a method for notifying a user of a neighboring cell information of a different system, including: sending a different system neighbor cell message to the UE when the user terminal UE has the different system access capability, the embodiment of the present invention provides a Network equipment, including:
  • the storage unit is configured to store information about the neighboring cell of the different system.
  • the sending unit is configured to: when the user terminal UE has the different system access capability, send the stored different system neighbor cell information to the UE.
  • the embodiment of the invention discloses a communication system for notifying a user terminal of different system neighbor cell information, comprising a first network device and a second network device, where:
  • the first network device is configured to receive capability information reported by the user terminal UE, and transmit the capability information to the second network device;
  • the second network device is configured to receive capability information of the UE, determine, according to the capability information, whether the UE has an inter-system access capability, and when the node is determined to be yes, send the stored heterogeneous system to the UE. Neighbor cell information.
  • the embodiment of the present invention provides another communication system for notifying the neighboring cell information of the user terminal, including the first network device and the second network device, where:
  • the first network device is configured to receive the capability information reported by the user terminal UE, determine, according to the capability information, whether the UE has the different system access capability, and report the determination result to the second network device;
  • the second network device is configured to receive the determination result, and when the determination result is yes, send the stored different system neighbor cell information to the UE.
  • the method, the network device, and the communication system for notifying the neighboring cell information of the user terminal according to the embodiment of the present invention only transmit the information of the neighboring cell of the different system to the UE having the access capability of the different system, thereby avoiding the capability of not having the different system access.
  • the UE After receiving the information of the neighboring cell of the different system, the UE has an abnormal phenomenon such as a crash or a restart, which improves the user experience.
  • DRAWINGS 1 is a flowchart of a method for notifying a neighboring cell information of a UE in an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a network device for notifying a neighboring cell information of a UE in an embodiment according to an embodiment of the present invention
  • FIG. 3 is a BSC according to Embodiment 1
  • FIG. 4 is a flowchart of a method for notifying UEs of different system neighbor cell information
  • FIG. 4 is a correspondence table between each GSM cell and each TD neighbor cell in Embodiment 1;
  • FIG. 5 is a flow chart of a method for notifying neighboring cell information of a different system by using an MSC Server in Embodiment 2;
  • FIG. 6 is a flowchart of another method for notifying neighboring cell neighbor information by using an MSC Server in Embodiment 3. detailed description
  • some GSM terminals may be analyzed for the cause of an abnormal phenomenon such as a crash or a restart:
  • the GSM terminal since the GSM terminal does not have a different system (for example, a 3G system) Incoming capability does not need to know the cell information of the different system. Therefore, the GSM terminal should directly discard the SI2quater message after receiving the SI2quater message.
  • the GSM terminal that has the above problem tries to parse the message after receiving the SI2quater message, but cannot The TD cell information in the message is identified, causing the parsing failure to enter an infinite loop of the program, thereby causing an abnormal phenomenon such as a crash or a restart.
  • an embodiment of the present invention provides a scheme for notifying a neighboring cell information of a heterogeneous system of a user terminal, which is used to solve the abnormal phenomenon that some GSM terminals are dead, restarted, etc. when the network side broadcasts the neighboring cell information of the different system under the existing mechanism.
  • the solution is as follows: Only the terminal with the access capability of the different system, for example, the user terminal supporting the dual mode of the GSM system and the 3G system, sends the information of the neighboring cell of the different system.
  • a different system of the GSM system is described by using a TD-SCDMA system or an E-UTRAN system as an example.
  • the different system may also be a WCDMA system, a CDMA2000 system, or a WiMAX (Worldwide Interoperability Microwave Access).
  • WCDMA Wideband Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access 2000
  • WiMAX Worldwide Interoperability Microwave Access
  • LTE Long Term Evolution
  • UWB Ultra Wideband, Ultra Wide Band Wireless
  • the location area is the smallest unit of the UE location update and network paging.
  • the LAC Location Area Code
  • the LAC is usually sent in the system message on the BCCH channel of each cell.
  • the UE When the UE is powered on and the SIM (Subscriber Identity Module) card is inserted, it will notify the network of its current location area through the IMSI (International Mobile Subscriber Identifier) attach procedure. As the UE moves, when it enters a new location area, it also initiates a location update, notifying the network of its new LAC. In addition, in order to maintain the close relationship between the UE and the network, and let the network know the location information of the UE in time, the UE may be required to initiate periodic location update to the network at intervals; the network stores the current user terminal at each location update. The LAC, as the location information for paging the UE.
  • IMSI International Mobile Subscriber Identifier
  • the MSC Server Mobile Switching Center Server
  • BSC Base Station Controller
  • the embodiment of the invention provides a method for notifying a user terminal of different system neighbor cell information, as shown in FIG. 1 , which includes the following steps:
  • the capability information of the UE it is determined whether the UE has an inter-system access capability.
  • the UE can actively report the capability information of the terminal to the BSC after the UE is powered on or updated in the GSM cell.
  • the capability information specifically refers to whether it has different system access capabilities.
  • the information about the neighboring cell of the different system includes the correspondence between each cell in the location area where the UE is located and the neighboring cell of the different system, and/or the configuration information of the neighboring cell of the different system; and, the information of the neighboring cell of the different system is usually not broadcast.
  • a channel such as a dedicated channel or a shared channel, is transmitted to the UE.
  • the dual-mode terminal with different system access capability can normally perform cell reselection and handover between different systems according to the neighboring cell information of the different system, and does not have the GSM terminal with different system access capability, since no difference is received.
  • the system neighbors the cell information, so there will be no abnormal phenomena such as crashes and restarts. This method effectively solves the problem that some user terminals have an abnormal phenomenon such as a crash or a restart when the network side broadcasts the neighboring cell information of the different system under the existing mechanism, thereby effectively improving the user experience.
  • the method for notifying a user terminal of different system neighboring cell information does not need to modify a large number of existing GSM terminals on the terminal side, and the modification of the dual mode terminal is mainly to enable the dual mode terminal to identify and store the dedicated channel. Or sharing the neighboring cell information of the different system received by the channel, and performing an interoperation process such as cell reselection and handover according to the information.
  • a network device that implements the foregoing method on the network side, as shown in FIG. 2, includes:
  • the storage unit 201 is configured to store the information of the neighboring cell of the different system.
  • the sending unit 202 is configured to: when the user terminal UE has the different system access capability, send the stored different system neighbor cell information to the UE.
  • the network device further includes: a receiving unit 203, configured to receive capability information of the user terminal UE, and a determining unit 204, configured to determine, according to capability information of the UE received by the receiving unit 203, whether the UE has different system access capability;
  • the sending unit 202 is notified to send the stored different system neighbor cell information to the UE.
  • the network device may be a BSC or an MSC Server.
  • all GSM cells in the same location area are within the same BSC control range.
  • the coverage area of the GSM cell satisfies the condition. If the condition is not met, it can be adjusted by the conventional location area optimization method, so that the location area in the GSM system is equivalent to the BSC control range.
  • the BSC pre-stores the correspondence between each GSM cell and each TD neighbor cell. And/or configuration information of each TD neighbor cell.
  • the method for notifying a user terminal of different system neighbor cell information by using a BSC includes the following steps:
  • the UE is powered on or updated in a GSM cell.
  • the UE actively sends the capability information of the terminal to the BSC.
  • the capability information is reported by initiating a Classmark change message.
  • the capability information refers specifically to the content of the Classmark 3 option in the Classmark change message.
  • the Classmark 3 is specifically: UMTS (Universal Mobile Telecommunications System) Communication System) 1.28 Mcps TDD Radio Access Technology Capability (Time Division Duplex Wireless Access Technology Capability).
  • Classmark 3 is used to indicate whether the terminal supports UMTS 1.28 Mcps TDD, that is, whether it has different system access capabilities. When the parameter value of Classmark 3 is 1, it indicates that UMTS 1.28Mcps TDD is supported. When the parameter value is 0, it indicates that UMTS 1.28Mcps TDD is not supported. It can be seen that if the UE is a dual-mode terminal, the value of the Classmark 3 parameter in the reported Classmark change message is 1. If the UE is a GSM terminal, the value of the Classmark 3 parameter in the reported Classmark change message is 0.
  • the UE always initiates the Classmark change message after the power-on or location update, and can be implemented by setting information on the network side.
  • SI 3 Rest Octets sent by the GSM cell the parameter of the Early Classmark Sending Control option is set to H, and the control can be controlled.
  • the UE always sends a Classmark change message after power on or location update.
  • the BSC receives the capability information reported by the UE, determines whether the UE supports the UMTS 1.28 Mcps TDD, that is, whether the system has the different system access capability, if not, executes S304, and if yes, executes S305;
  • the BSC sends, by using a dedicated channel (for example, an SDCCH channel), the information of the neighboring cell to the UE, including the correspondence between each GSM cell and the neighboring cell of the different system in the location where the UE is located, and/or the neighboring cell of the different system.
  • a dedicated channel for example, an SDCCH channel
  • the UE stores the received neighboring cell information of the different system, and the process ends.
  • PS Packet Switch, packet switched domain
  • PS connection state reselection to TD-SCDMA system PS connection state reselection to TD-SCDMA system
  • CS Circuit Switch Domain
  • the transmitted hetero-system neighbor cell information includes the correspondence between each GSM cell and the neighboring cell of the different system in the location area where the UE is located, and/or the neighboring cell of the different system.
  • the configuration information is that when the UE is in the Idle state, the location update is performed only when the location area is changed, and the network is contacted, that is, the location information management of the UE in the Idle state of the UE can only be accurate to the location area. level. Therefore, the location area as the unit of the transmitted inter-system neighbor cell information can ensure that the UE has enough different system neighbor cell information to be used when moving in one location area.
  • each cell in a location area and the adjacent cell of the different system can be given by means of a correspondence table.
  • a correspondence table Taking a GSM cell in a location area as an example for description, the corresponding relationship between each GSM cell and each TD neighboring cell is as shown in FIG. 4, and each cell and different system neighboring cells shown in FIG. 4 can be transmitted through a dedicated channel.
  • Correspondence table Of course, in addition to the correspondence table shown in FIG. 4, configuration information of each TD cell appearing in the correspondence table may be simultaneously transmitted.
  • the BSC needs to store the correspondence between each GSM cell and each TD neighboring cell in the BSC, and/or the configuration information of each TD neighboring cell.
  • the BSC receives the Classmark change message reported by the UE, it can determine whether the UE has a different system connection. Incoming capability, and only transmitting information of different system neighbor cells to UEs with different system access capabilities.
  • all GSM cells in the same location area are within two or more BSC services.
  • the MSC Server needs to pre-store the correspondence between the internal GSM cells and the TD neighbor cells, and/or the configuration information of each TD neighbor cell, because the MSC Server manages at least one location area. This requires the BSC to report the neighboring cell information of each GSM cell to the MSC Server in advance, and then store it by the MSC Server.
  • a method for notifying a user terminal of different system neighbor cell information by using an MSC Server includes the following steps: 5501. The UE is powered on or updated in the GSM cell.
  • the UE actively reports the capability information of the terminal to the BSC.
  • the UE After the UE is powered on or the location is updated, the UE reports the capability information to the SC by initiating a Classmark change message.
  • the BSC passes the capability information reported by the UE to the MSC Server.
  • the MSC Server receives the capability information of the UE, determines whether the UE supports the UMTS 1.28 Mcps TDD, that is, whether the system has the different system access capability, if not, executes S505, and if yes, executes S506;
  • the MSC Server does not take any action, and the process ends.
  • the MSC Server sends, by using a dedicated channel (for example, an SDCCH channel), the information of the neighboring cell to the UE, including the correspondence between each GSM cell and the neighboring cell of the different system in the location where the UE is located, and/or the neighboring cell of the different system.
  • a dedicated channel for example, an SDCCH channel
  • the UE stores the received neighboring cell information of the different system, and the process ends.
  • the BSC needs to send the capability information reported by the UE to the MSC Server, and the MSC Server needs to store the correspondence between the GSM cells and the TD neighboring cells in the MSC Server, and/or the configuration information of each TD neighboring cell;
  • the MSC Server can determine whether the UE has the different system access capability, and only sends the neighboring cell information of the different system to the UE with the different system access capability.
  • This embodiment provides another method for notifying the user terminal of the neighboring cell information of the system through the MSC Server. As shown in FIG. 6, the method includes the following steps:
  • the UE is powered on or updated in the GSM cell.
  • the UE actively reports the capability information of the terminal to the BSC.
  • the UE reports the capability information to the BSC by initiating a Classmark change message after the GSM cell is powered on or updated.
  • the BSC receives the capability information of the UE, determines whether the UE supports the UMTS 1.28 Mcps TDD, that is, whether the system has the access capability of the different system, and reports the judgment result to the MSC Server; 5604, the MSC Server receives the determination result, when the determination result is no, then S605 is performed, and when the determination result is YES, then S606 is performed;
  • the MSC Server does not take any action, and the process ends;
  • the MSC Server sends, by using a dedicated channel (for example, an SDCCH channel), the information of the neighboring cell to the UE, including the correspondence between each GSM cell and the neighboring cell of the different system in the location area where the UE is located, and/or the neighboring cell of the different system.
  • a dedicated channel for example, an SDCCH channel
  • the UE stores the received neighboring cell information of the different system, and the process ends.
  • the BSC needs to determine whether the UE has the different system access capability according to the capability information reported by the UE, and sends the judgment result to the MSC Server, where the MSC Server needs to store the correspondence between each GSM cell and each TD neighboring cell in the MSC Server. The relationship, and/or the configuration information of each TD neighboring cell, when the MSC Server receives the judgment result is yes, sends the different system neighbor cell information to the UE.
  • the embodiment of the present invention provides a communication system for informing the user terminal of the neighboring cell information of the system, including the first network device and the second network device.
  • the first network device may be a BSC
  • the second network device may be an MSC Server, where:
  • the first network device is configured to receive capability information reported by the UE, and transmit the capability information to the second network device.
  • the UE can report its capability information according to the network setting information.
  • the second network device is configured to receive the capability information of the UE, and determine, according to the capability information, whether the UE has the different system access capability, and when the determination result is yes, send the stored different system neighbor cell information to the UE. Or,
  • the first network device is configured to receive the capability information reported by the UE, determine, according to the capability information, whether the UE has the different system access capability, and report the determination result to the second network device;
  • the UE can report its capability information according to the network setting information.
  • the second network device is configured to receive the judgment result, and when the judgment result is yes, send the stored different system neighbor cell information to the UE.
  • the TD-GSM dual-mode terminal in the embodiment of the present invention is not only capable of being based on the network side.
  • the setting information after the power-on or location update, always sends a Classmark change message carrying Classmark 3, indicating the capability information of the terminal, and also identifying and storing the different-system neighboring cell that the network side sends to the device through the non-broadcast channel.
  • Information and according to the neighboring cell information of different systems, perform inter-operational procedures such as cell reselection and handover between different systems.
  • the method, the network device, and the communication system for notifying the neighboring cell information of the user terminal only transmit the information of the neighboring cell of the different system to the dual mode terminal, thereby effectively preventing the GSM terminal from receiving the information of the neighboring cell of the different system.
  • Possible abnormalities such as crashes and restarts have improved user experience.
  • the UE may use other messages than the Classmark change message to send capability information.

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

Abstract

L'invention concerne le domaine des technologies de communication mobile. Plus particulièrement, une technologie permettant de notifier des informations de cellule voisine du système hétérogène à un terminal utilisateur. Elle concerne également un procédé destiné à notifier ces informations à un terminal utilisateur, qui résout le problème des phénomènes anormaux tels que l'interruption ou la réinitialisation du système dans certains terminaux utilisateurs lorsque le côté réseau diffuse des informations de cellule voisine de système hétérogène et améliore l'expérience de l'utilisateur. Ce procédé consiste à envoyer des informations de cellule voisine de système hétérogène à un terminal utilisateur UE lorsque l'UE présente une capacité d'accès au système hétérogène. L'invention concerne également un réseau et un système de communication destinés à notifier des informations de cellule voisine du système hétérogène à un terminal utilisateur.
PCT/CN2009/000268 2008-03-17 2009-03-12 Procédé, dispositif et système de notification d'informations de cellule voisine du système hétérogène à un terminal utilisateur WO2009114988A1 (fr)

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CN2008101020825A CN101540991B (zh) 2008-03-17 2008-03-17 一种通知用户终端异系统邻小区信息的方法、设备及系统
CN200810102082.5 2008-03-17

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CN105722066A (zh) * 2014-12-03 2016-06-29 中国移动通信集团公司 终端能力信息上报、资源配置方法、系统及相关装置
CN105792244A (zh) * 2014-12-22 2016-07-20 中兴通讯股份有限公司 2g网络的系统消息优化方法及系统
CN110461017A (zh) * 2018-05-07 2019-11-15 中国移动通信集团有限公司 一种终端从gsm网络重选至lte网络的方法及装置
CN116017408A (zh) * 2021-10-22 2023-04-25 华为技术有限公司 一种通信方法及通信装置

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CN1382355A (zh) * 1999-09-24 2002-11-27 诺基亚公司 无线电信网/系统之间的切换
CN101076192A (zh) * 2007-03-08 2007-11-21 中兴通讯股份有限公司 双模移动终端与通用地面无线接入网进行信息交互的方法

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