WO2009140914A1 - Procédé et dispositif de configuration de l’identité d’une cellule - Google Patents

Procédé et dispositif de configuration de l’identité d’une cellule Download PDF

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Publication number
WO2009140914A1
WO2009140914A1 PCT/CN2009/071861 CN2009071861W WO2009140914A1 WO 2009140914 A1 WO2009140914 A1 WO 2009140914A1 CN 2009071861 W CN2009071861 W CN 2009071861W WO 2009140914 A1 WO2009140914 A1 WO 2009140914A1
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WIPO (PCT)
Prior art keywords
cell
cell identifier
dynamic
message
fixed
Prior art date
Application number
PCT/CN2009/071861
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English (en)
Chinese (zh)
Inventor
段忠毅
任学亮
屈建平
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华为技术有限公司
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Publication of WO2009140914A1 publication Critical patent/WO2009140914A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Definitions

  • the present invention claims the priority of the Chinese patent application filed on May 20, 2008, the Chinese Patent Application No. 200810097723.2, entitled “Method and Apparatus for Configuring a Cell Identity", the entire contents of which is filed on May 20, 2008. This is incorporated herein by reference.
  • the present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for configuring a cell identifier (Cell ID).
  • Cell ID Cell ID
  • BACKGROUND For each cell, an operator allocates a fixed Cell ID, and the UE can obtain Cell ID information from a wireless interface (Uu interface).
  • Uu interface wireless interface
  • One of the commonly used mobile positioning technologies is Cell ID based positioning technology.
  • the so-called cell ID based positioning determines the location of the user based on the Cell ID of the cell in which the mobile station is located.
  • the positioning accuracy of the Cell ID positioning technology depends on the radius of the cell; on the other hand, the Cell lD positioning technology does not require the positioning measurement of the mobile station, and the positioning information transmission of the wireless interface is small, so the positioning response time is short.
  • the third party obtains the correspondence between the Cell ID and the geographical location of the cell by using the Cell ID positioning technology, it is possible to illegally provide the Cell ID-based positioning service to the UE. .
  • SUMMARY OF THE INVENTION The present invention is to provide a method and apparatus for configuring a Cell ID to shield a third party from illegally locating through a Cell ID.
  • the embodiment of the present invention adopts the following technical solutions:
  • a method for configuring a Cell ID including: allocating a fixed Cell ID to a cell; converting the fixed Cell ID into a dynamic Cell ID, where the dynamic Cell ID and the fixed Cell ID are in a mapping relationship;
  • the dynamic Cell ID is carried in the wireless message, and the wireless message including the dynamic Cell ID is sent to the UE through the wireless interface.
  • An apparatus for configuring a Cell ID comprising: a Cell lD preset unit, configured to set a fixed Cell ID of a cell; and further comprising: a Cell ID conversion unit, configured to convert the fixed Cell ID into a dynamic Cell ID, where the dynamic The cell ID is associated with the fixed Cell lD; the wireless message assembling unit is configured to carry the dynamic Cell ID in the wireless information; and the wireless message sending unit is configured to send the wireless message that includes the dynamic Cell ID to And the base station, and instructing the base station to send the wireless message to the UE.
  • the fixed Cell ID is converted, and the dynamic Cell ID is sent to the UE through the Uu interface.
  • FIG. 1 is a schematic structural diagram of a UMTS system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a method for configuring a Cell ID according to an embodiment of the present invention
  • Embodiment 3 is a flowchart of Embodiment 1 of a method for configuring a Cell lD according to an embodiment of the present invention
  • Embodiment 4 is a flowchart of Embodiment 2 of a method for configuring a Cell lD according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of an apparatus for configuring a Cell lD according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of Embodiment 2 of an apparatus for configuring Cell lD according to an embodiment of the present invention.
  • the Land Mobile Communication System mainly includes a core network (CN) and a radio access network (RAN).
  • the core network handles all voice calls, data connections and exchanges within the UMTS system, as well as connections and routing to other external networks.
  • the wireless access network performs all wireless related functions. These two subnets together with the UE constitute a complete UMTS system, and its structure is shown in Figure 1.
  • the UTRAN performs the function of the radio access network, which in turn includes a radio access controller (RNC) and a base station (Node B), and the RNC and the NB communicate through the Iub interface, and the interface between the UTRAN and the core network is Iu.
  • the interface with the UE is Uu.
  • the Uu interface is also called a wireless interface. It is mainly used to establish, reconfigure, and release various 3G radio bearer services. Fully open interface.
  • a flowchart of a method for configuring a Cell ID according to an embodiment of the present invention includes:
  • S202 Convert the fixed Cell ID to a dynamic Cell ID, where the dynamic Cell ID has a mapping relationship with the fixed Cell ID.
  • the dynamic Cell ID is carried in the wireless message, and the wireless message including the dynamic Cell ID is sent to the UE through the Uu interface.
  • the dynamic Cell ID maintains a mapping relationship with the fixed Cell ID.
  • the Iu interface and the Iub interface still use the fixed Cell ID, and only the dynamic Cell ID is used on the Uu interface.
  • the dynamic Cell ID changes the latest dynamic Cell ID is broadcast in the cell by updating the wireless message.
  • the embodiment of the present invention converts the fixed Cell ID in the prior art, and sends the converted dynamic Cell ID to the UE through the Uu interface, so that even if the third party adopts the Cell ID positioning technology, the obtained It is a dynamic Cell ID. It is unlikely that the correct relationship between the Cell ID and the geographic location of the cell will be obtained. It is difficult to illegally provide the Cell lD-based positioning service to the user.
  • FIG. 3 is a flowchart of a method for configuring a Cell ID according to Embodiment 1 of the present invention, including:
  • S301 The RNC allocates a fixed Cell ID to each cell
  • the fixed Cell ID assigned to the cell is ⁇ .
  • S302 Set a conversion function of the fixed Cell lD to the dynamic Cell lD in the RNC.
  • the conversion function is a function that changes randomly with time.
  • the conversion function is:
  • the RNC may set a number of Cell IDs as an alternate set of dynamic Cell IDs.
  • (0 is cell i transforms the dynamic Cell ID selected from the candidate set over time.
  • the RNC carries the dynamic Cell lD in the wireless message; specifically, the wireless message may refer to system information, preferably SIB3 or SIB4.
  • SIB3 and SIB4 are system messages sent by the UTRAN system, and are broadcasted for the entire cell, not for a specific UE; wherein, the UE in the idle state receives the system message of the SIB3, and the UE in the connected state receives the system message of the SIB4;
  • the UTRAN system broadcasts these two system messages and does not need to know the status of a particular UE. See Table 1 for the SIB3 message structure diagram.
  • SIB3 includes multiple information fields, such as: SIB4 Indicator, UTRAN mobility information elements, Cell Identity, Cell Selection/Reselection Parameters. (Cell selection and re-selection info), and Cell Access Restriction.
  • SIB4 Indicator SIB4 Indicator
  • the Cell Identity in the SIB3 is assigned a fixed Cell ID: X is different from the above, in the embodiment of the present invention, the cell identity (Cell Identity) of the SIB3 is assigned. Dynamic Cell ID: 1 ⁇ .(
  • the wireless message may also be a radio bearer message for a specific UE, such as a Radio Bearer Setup (RB Setup), a Radio Reconfiguration (RB Reconfigure), and a Radio Bearer Release (RB Release).
  • RB Setup Radio Bearer Setup
  • RB Reconfigure Radio Reconfiguration
  • RB Release Radio Bearer Release
  • the RNC sends a wireless message carrying a dynamic Cell ID to the Node B.
  • the Node B forwards the wireless message to the UE. It should be noted that the Node B may not need to process the wireless message, but only forwards it to the UE. In other words, in the embodiment of the present invention, only the fixed Cell ID to the dynamic Cell ID is required to be converted on the RNC side. No changes are required on the Node B and UE side, and the implementation is very simple. In the prior art, the third party may obtain the fixed cell ID in the UTRAN to send the wireless message to the UE, thereby determining the cell location information, and then providing the user in the cell with the illegal service. In the embodiment of the present invention, on the RNC side. The fixed Cell ID is converted, and the dynamic Cell ID is sent to the UE on the Uu interface.
  • the embodiment of the present invention implements the cartridge, and only needs to make minor changes to the RNC side, and does not need to be modified on the Node B and UE sides.
  • ⁇ is the optional Cell lD corpus of the Uu interface
  • ⁇ (0 is the set of the Uu interface Cell IDs of all the actual configured cell mappings at the moment
  • Sb ⁇ is the Cell ID that has not been mapped to the Uu interface at the moment
  • the set, ie, Sa(t) Sb(t) S .
  • the set of fixed CelllD is: ⁇ 1, 2, 3, 4, 5 ⁇ ;
  • the optional CelllD corpus S is: ⁇ 1, 2, 3, 4, 5, 6, 7, 8, 9 ⁇ ;
  • the dynamic Cell Id corresponding to the fixed Cell 1 is changed from 1 to 7;
  • the Uu port dynamic change is performed on the fixed Cell 2 2 hours after the system starts:
  • the dynamic Cell Id corresponding to Fixed Cell 2 is changed from 2 to 9.
  • the example given above dynamically changes a cell after each cycle; in fact, the identity of multiple cells can be dynamically adjusted at the same time.
  • it is configurable to dynamically adjust a certain cell after each period or dynamically adjust all cells.
  • a flowchart of Embodiment 2 of the method for configuring a Cell ID includes:
  • the RNC converts the fixed Cell ID allocated for the cell into a dynamic CelllD through a preset conversion function, and carries the signal in the wireless message;
  • the RNC sends the wireless message including the dynamic Cell ID to the Node B, and the NodeB forwards the wireless message including the dynamic Cell1D to the UE.
  • the uplink direction In the uplink direction:
  • S403 The UE forwards the measurement report including the dynamic cell ID to the RNC through the Node B.
  • the RNC restores the dynamic Cell ID reported by the UE to a fixed Cell ID by using an inverse function of the conversion function; for example, the inverse function of Equation 1 is:
  • the RNC still carries the fixed Cell ID in the message that interacts with the core network through the Iu interface. It should be noted that, in S305 or S402, the Node B may only forward the wireless message including the dynamic Cell ID, and does not process it. In the true signaling interaction between the Node B and the RNC, the Local CelllD (NodeB) is used. It is not known to configure the fixed CelllD). Person in the field It is understood that, for the Node B, the Local Cell ID is used as the identifier of each cell, and the RNC maintains the correspondence between the Local Cell ID and the Cell ID of each Node B.
  • NodeB the Local CelllD
  • the fixed Cell ID is still transmitted, which has no effect on the existing network system.
  • the embodiment of the present invention further provides an apparatus for configuring a Cell ID, which may be an RNC device itself, or a functional entity located inside the RNC, and may be implemented by software, hardware, or a combination of software and hardware. .
  • FIG. 5 it is a schematic structural diagram of Embodiment 1 of the apparatus, which includes a cell identifier pre-setting unit 501, a cell identity conversion unit 502, a wireless message assembling unit 503, and a wireless message sending unit 504, where
  • a cell identifier presetting unit 501 configured to set a fixed Cell lD of the cell
  • the cell identifier conversion unit 502 is configured to convert the fixed Cell ID into a dynamic Cell ID, where the fixed Cell ID is mapped to the dynamic Cell ID.
  • the wireless message assembling unit 503 is configured to carry the dynamic Cell ID.
  • the wireless message sending unit 504 is configured to send the wireless message that includes the dynamic Cell ID to the Node B, and instruct the Node B to send the wireless message to the UE.
  • the wireless message assembling unit 503 assembles the dynamic Cell lD into the Cell Identity field in the SIB3; or the wireless message assembling unit 503 assembles the dynamic Cell ID into the Cell Identity field in the SIB4.
  • the wireless message assembling unit 503 is configured to assemble the dynamic cell identifier into a cell identity signaling in a radio bearer setup message, a radio bearer reconfiguration message, or a radio bearer release message.
  • the system messages SIB3, SIB4 are independent of the state of each UE, and are updated in the cell when the dynamic Cell ID changes.
  • the working process of the first embodiment of the apparatus is as follows: First, the cell identity conversion unit 502 is activated, and the fixed cell ID set by the cell identifier presetting unit 501 is converted into a dynamic cell ID;
  • the dynamic Cell ID is carried in the wireless information by using the wireless message assembling unit 503; finally, the wireless message including the system information is sent to the Node B through the wireless message sending unit 504, and the Node B is instructed to use the wireless The message is sent to the UE.
  • the second embodiment of the device further includes:
  • the conversion function presetting unit 601 is configured to set a conversion function; the cell identifier conversion unit 502 converts the fixed cell identifier into a dynamic cell identifier by using the conversion function.
  • the apparatus may further include: a measurement report receiving unit 602, configured to receive, from the Node B, a measurement report that is sent by the UE and includes the dynamic Cell ID;
  • the cell identifier recovery unit 603 is configured to restore the dynamic Cell ID included in the measurement report to a fixed Cell ID according to an inverse function of the conversion function.
  • the apparatus may further include:
  • the Iu interface message unit 604 is configured to perform information interaction with the core network through the Iu interface, where the information of the interaction carries the fixed Cell ID.
  • the third party may obtain the fixed cell ID in the UTRAN to send the wireless message to the UE, thereby determining the cell location information, and then providing the user in the cell with the illegal service.
  • on the RNC side The fixed Cell ID is translated, and the dynamic Cell ID is sent to the UE on the Uu interface. Even if the third party obtains the dynamic Cell ID, it is difficult to know the real location information of the cell (the location information of the cell is fixed. The Cell ID corresponds to, therefore, effectively solves the problem that third parties use the Cell ID to provide illegal services.
  • the Uu interface transmits a dynamic Cell ID
  • the remaining interfaces, including the Iu interface and the Iub interface, are still fixed Cell IDs, which have no effect on the network transmission, and the network entities other than the RNC do not need to change the processing of the Cell ID, and the implementation is very simple.
  • the process of implementing the method for configuring the Cell ID in the above embodiment can be completed by hardware related to the program instruction, and the program can be stored in a readable storage medium, and the program executes the above when executed.
  • the corresponding step in the method may be, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.

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

Abstract

L'invention concerne un procédé de configuration de l’identité d’une cellule, comportant les étapes consistant à : attribuer une identité statique de cellule à une cellule; convertir l’identité (ID) statique de cellule en une identité dynamique de cellule comprenant une relation de correspondance avec l’identité statique de cellule; incorporer l’identité dynamique de cellule dans une information radio; envoyer l’information radio comprenant l’identité dynamique de cellule vers un dispositif d’utilisateur (UE) via une interface radio. Ainsi, par la conversion de l’ID statique de cellule, c’est l’ID dynamique de cellule qui est envoyée à l’UE par l’interface Uu, et même si un tiers obtenait l’ID dynamique de cellule, il n’obtiendrait pas les informations réelles de localisation de la cellule, ce qui permet de s’opposer efficacement à la fourniture par ledit tiers d’un service illégal par orientation des ID de cellule. L'invention concerne également un dispositif destiné à configurer une identité de cellule correspondant au procédé décrit ci-dessus de la présente invention.
PCT/CN2009/071861 2008-05-20 2009-05-20 Procédé et dispositif de configuration de l’identité d’une cellule WO2009140914A1 (fr)

Applications Claiming Priority (2)

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CN200810097723.2 2008-05-20
CN 200810097723 CN101296515A (zh) 2008-05-20 2008-05-20 配置小区标识的方法及装置

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Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
CN101296515A (zh) * 2008-05-20 2008-10-29 华为技术有限公司 配置小区标识的方法及装置
CN101772036B (zh) * 2008-12-31 2012-07-18 中兴通讯股份有限公司 一种实现物理小区标识自动配置的方法及装置
CN101695163B (zh) * 2009-09-27 2012-07-11 上海华为技术有限公司 一种全局小区标识处理的方法、装置和系统
CN102137384B (zh) * 2010-01-22 2013-08-28 华为技术有限公司 网络实体标识的处理方法、装置和通信系统
CN102378229B (zh) * 2010-08-12 2015-03-11 电信科学技术研究院 一种分配和检测小区标识的方法、系统及设备
CN101931888A (zh) * 2010-09-01 2010-12-29 华为技术有限公司 业务处理方法与装置、基站控制器
CN103974236B (zh) * 2013-01-31 2017-09-12 中国移动通信集团公司 一种更新小区标识信息的方法及相关设备

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