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WO2008052451A1 - Réseau d'accès, procédé d'accès et station de base dans un système de communication - Google Patents

Réseau d'accès, procédé d'accès et station de base dans un système de communication Download PDF

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Publication number
WO2008052451A1
WO2008052451A1 PCT/CN2007/070558 CN2007070558W WO2008052451A1 WO 2008052451 A1 WO2008052451 A1 WO 2008052451A1 CN 2007070558 W CN2007070558 W CN 2007070558W WO 2008052451 A1 WO2008052451 A1 WO 2008052451A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
mobile communication
communication access
station controller
controllers
Prior art date
Application number
PCT/CN2007/070558
Other languages
English (en)
Chinese (zh)
Inventor
Jiagang Ji
Hongyu Zhao
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008052451A1 publication Critical patent/WO2008052451A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a mobile communication access network, an access method, and a base station.
  • a plurality of BTSs are managed by a fixed BSC (Base Station Controller). Take the CDMA (Code Division Multiple Access) mobile communication access network as an example.
  • the networking mode is shown in Figure 1.
  • a plurality of base stations such as the base station 101, the base station 102, and the base station 103, are managed by a fixed BSC 104.
  • the BSC 104 fails, all the base station services under the BSC management are interrupted, thereby reducing network reliability.
  • An aspect of the present invention provides a mobile communication access network and an access method to enhance network reliability.
  • Another aspect of the present invention provides a base station that can be connected to at least two base station controllers, and can select one of the base station controllers to serve the user as needed, thereby enhancing the reliability of the user service.
  • a mobile communication access method includes: selecting, in a mobile communication network in which a base station is connected to at least two base station controllers, a base station controller from a base station controller connected to the base station as a user service.
  • a mobile communication access network includes a base station and a base station controller, wherein one base station is connected to at least two base station controllers, and further includes a selecting unit, configured to be connected to the base station controller connected to the base station Select a base station controller to serve the user.
  • the embodiment of the present invention further provides a base station in a mobile communication access network, including: an interface, configured to connect at least two base station controllers; and a selecting unit, configured to select one of base station controllers connected to the base station
  • the base station controller serves the user; the storage unit is configured to store the number required for radio resource management According to the base station for use.
  • a base station is connected to at least two base station controllers, so that the base station can select among multiple BSCs. If one of the BSCs fails, the other BSCs can still work, thereby improving network reliability. Sex.
  • the embodiments of the present invention can also share resources of multiple BSCs, thereby improving the utilization of BSC resources; the probability of using the same BSC between different base stations is increased, so the switching frequency between BSCs can be reduced.
  • FIG. 1 is a networking diagram of a CDMA mobile communication access network in the prior art
  • FIG. 2 is a networking diagram of a mobile communication access network according to an embodiment of the present invention.
  • FIG. 3 is a call flow diagram of a mobile communication access method according to an embodiment of the present invention.
  • the base station in the mobile communication access network may have one or more (including two, the same below), and the base station controller may have more than two, and in FIG. 2, only three base stations and three The base station controller is taken as an example.
  • the base station is connected to multiple BSCs, and the point-to-point connection mode may be used, or the IP networking mode may be adopted. If the number of base station controllers and base stations in the access network is small, for example, the total number of the two is less than six, the point-to-point networking mode can be adopted between the base station and the multiple base station controllers, and the network is not caused. complex structure. If the number of base station controllers and base stations in the access network is large, the network in the IP networking mode can avoid the complicated network structure caused by the traditional point-to-point method.
  • radio resource management functions such as channel management, handover, power control, and pilot state maintenance are implemented on the BSC.
  • the BSC needs to manage the air interface resources such as pilots and channels of the base station.
  • Some of the radio resource management functions are strongly coupled to the base station, so that the base station can only belong to a specific BSC. Therefore, when the networking mode of the embodiment of the present invention is used, it is also necessary to consider reducing the degree of coupling between the base station controller and the base station.
  • the radio resource management function in the BSC In order to reduce the degree of coupling between the base station controller and the base station, some of the functions of the radio resource management function in the BSC that are strongly coupled with the base station can be separated. These features include: channel management, switching, Power control and pilot state maintenance.
  • the data required for these functions can be stored in a memory unit, making it independent of the BSC.
  • the storage unit may be located in the base station to implement self-management of the base station itself, as shown in FIG. 2; the storage unit may not be located in the base station, but may be connected as a single unit to all base stations in the BSC pool, and the BSC is allowed. This storage unit can be accessed by all BSCs in the pool.
  • the base station controllers 206, 207 and 208 constitute a base station controller pool 205, and each base station controller in the base station controller pool 205 is connected to the IP network 204.
  • Base stations 201, 202, and 203 are also coupled to IP network 204 via interface 211 such that, by router forwarding, these base stations can communicate with multiple base station controllers in the base station controller pool.
  • the interface 211 is used for connecting the BTS to two or more BSCs. In the case of non-IP networking, multiple BSCs can be connected by one interface, or one BSC can be connected to multiple interfaces.
  • the base station controllers 206, 207, and 208 are respectively connected to the devices in the core network 210. If the data services are provided for the users, the base station controllers establish a connection with the PCF (Packet Control Function) 209, if it is a user. Provided for voice services, these base station controllers establish a connection with the MSC (Mobile Switching Center).
  • PCF Packet Control Function
  • the base station 201 includes a storage unit 212 for storing data required for several radio resource management such as channel management, handover, power control, and pilot state maintenance.
  • the base station 201 further includes a selection unit 213 for selecting a suitable BSC to serve the user in the base controller pool.
  • the selection unit 213 can also be located in a base station controller connected to the base station. The selection unit 213 can use the following three selection methods.
  • One method is to store a list of available BSCs in the BSC pool in the base station.
  • the selected BSC is calculated according to the IMSI (International Mobile Subscriber Identity) HASH algorithm.
  • the second is the method of rotating selection.
  • N BSCs in the BSC pool, the numbers are ⁇ 1, 2, 3...N ⁇ respectively.
  • the BSC with the number 1 is selected.
  • the selected BSC number is added. 1 , ie 2, and so on.
  • the maximum value of the number N is reached, then from the first BSC Start picking.
  • Another method is the load balancing method.
  • Multiple BSCs in the BSC pool are interconnected and each periodically informs each other of their current load conditions.
  • the mobile station initiates a call setup request, and the base station sends the call setup request to a BSC in the BSC pool, and the BSC selects a BSC with the lightest load in the pool to process.
  • One BSC in the BSC pool may be a BSC that is fixedly configured during networking, or the base station may randomly select one at each call.
  • both the base stations 202 and 203 may also include a storage unit and a selection unit.
  • FIG. 2 shows only the two units in the base station 201.
  • Embodiments of the present invention also provide a mobile communication access method.
  • the base station controller pool is composed of at least two base station controllers, and a plurality of base station controllers in the base station controller pool are connected with the base station or the core network equipment.
  • the connection mode can be IP networking mode. Refer to Figure 2. If the number of base station controllers and base stations in the network is not large, for example, the total number of the two is less than six, the point-to-point networking mode can also be used.
  • the mobile communication service includes a voice service and a data service.
  • the voice service includes a call process and a called process.
  • the data service may be initiated by the mobile station MS or may be initiated by the network side.
  • the base station selects a suitable BSC in the BSC pool to serve the user; when providing the voice called service for the user, each BSC and core network device in the BSC pool The MSC is connected, and the MSC selects a suitable BSC in the BSC pool to serve the user.
  • the core network device PCF selects a suitable BSC in the BSC pool to serve the user.
  • Step 301 The MS initiates a voice call, and sends an initial call message to the base station.
  • Step 302 After receiving the initial call message, the base station selects a suitable BSC in the BSC pool to process the newly created call.
  • Step 303 The base station forwards the initial call message to the selected BSC for processing
  • Step 304 After receiving the initial call message, the BSC constructs a CM (Call Management) service request and sends it to the MSC (Mobile Switching Center) for processing;
  • CM Call Management
  • Step 305 The MSC authenticates the call, and if it is a legitimate user, sends an assignment request message.
  • the base station may select the BSC in the BSC pool by using the aforementioned hash algorithm, the round-robin selection method, or the load balancing method.
  • the aforementioned rotation selection method and load balancing method are also applicable to the selection of BSC by MSC and PCF.
  • the drawings and the related description are merely illustrative of the principles of the invention and are not intended to limit the scope of the invention.
  • the present invention can be applied not only to a CDMA network environment, but also to GSM (Global System for Mobile Communications), WCDMA (Wideband CDMA, Wideband Code Division Multiple Access), and TD-SCDMA (Time Division-Synchronous Code Division Multiple). Access, time division synchronous code division multiple access) and other network environments.
  • GSM Global System for Mobile Communications
  • WCDMA Wideband CDMA, Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple
  • Access time division synchronous code division multiple access
  • the names of devices or devices with corresponding functions may be different.
  • the base station corresponds to the NodeB
  • the base station controller BSC corresponds to the RNC (Radio Network Controller), but does not exceed the present invention.
  • RNC Radio Network Controller
  • the base station, MSC, or PCF are not connected to each BSC of the BSC pool, but are connected to more than two BSCs within the BSC pool.
  • the technical solutions are all included in the protection scope of the present invention.

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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 réseau d'accès et un procédé d'accès, comprenant une station de base connectée à au moins deux contrôleurs de station de base. Un contrôleur de station de base est sélectionné pour fournir un service à l'utilisateur. La fiabilité du réseau est ainsi améliorée et l'utilité de ce contrôleur de station de base également, la commutation entre les contrôleurs de station de base étant moins nécessaire.
PCT/CN2007/070558 2006-10-28 2007-08-27 Réseau d'accès, procédé d'accès et station de base dans un système de communication WO2008052451A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610063370.5 2006-10-28
CNA2006100633705A CN101170794A (zh) 2006-10-28 2006-10-28 移动通信接入网络、接入方法和基站

Publications (1)

Publication Number Publication Date
WO2008052451A1 true WO2008052451A1 (fr) 2008-05-08

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Application Number Title Priority Date Filing Date
PCT/CN2007/070558 WO2008052451A1 (fr) 2006-10-28 2007-08-27 Réseau d'accès, procédé d'accès et station de base dans un système de communication

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CN (1) CN101170794A (fr)
WO (1) WO2008052451A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102076019A (zh) * 2009-11-20 2011-05-25 中兴通讯股份有限公司 一种负荷分担和备份的方法、装置及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001007756A (ja) * 1999-06-24 2001-01-12 Nec Corp 回線障害通報方法及び基地局制御装置
CN1318261A (zh) * 1999-07-14 2001-10-17 三星电子株式会社 移动交换系统中的负载分配方法
CN1418023A (zh) * 2001-11-06 2003-05-14 华为技术有限公司 无线接入网中基站控制器的备份实现方法及装置
CN1575008A (zh) * 1999-03-19 2005-02-02 富士通株式会社 无线本地环路系统及无线链路控制方法
CN1791241A (zh) * 2004-12-14 2006-06-21 华为技术有限公司 无线接入网的基站组网方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1575008A (zh) * 1999-03-19 2005-02-02 富士通株式会社 无线本地环路系统及无线链路控制方法
JP2001007756A (ja) * 1999-06-24 2001-01-12 Nec Corp 回線障害通報方法及び基地局制御装置
CN1318261A (zh) * 1999-07-14 2001-10-17 三星电子株式会社 移动交换系统中的负载分配方法
CN1418023A (zh) * 2001-11-06 2003-05-14 华为技术有限公司 无线接入网中基站控制器的备份实现方法及装置
CN1791241A (zh) * 2004-12-14 2006-06-21 华为技术有限公司 无线接入网的基站组网方法

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