WO2010091627A1 - Procédé, dispositif et système d'établissement du commutateur local - Google Patents

Procédé, dispositif et système d'établissement du commutateur local Download PDF

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Publication number
WO2010091627A1
WO2010091627A1 PCT/CN2010/070575 CN2010070575W WO2010091627A1 WO 2010091627 A1 WO2010091627 A1 WO 2010091627A1 CN 2010070575 W CN2010070575 W CN 2010070575W WO 2010091627 A1 WO2010091627 A1 WO 2010091627A1
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WO
WIPO (PCT)
Prior art keywords
local exchange
call
message
establishing
condition
Prior art date
Application number
PCT/CN2010/070575
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English (en)
Chinese (zh)
Inventor
朱星
秦钧
王之曦
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华为技术有限公司
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Filing date
Publication date
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Publication of WO2010091627A1 publication Critical patent/WO2010091627A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, apparatus, and system for establishing a local exchange. Background technique
  • the transmission network is an important part of the wireless communication network.
  • operators in many countries and regions have affected the deployment, operation, and service development of wireless networks because of the bottleneck of the transmission resources connecting the radio access network and the core network.
  • BSS base station subsystem
  • local exchange can be established for both parties of the call.
  • the calling parties are made to communicate by local exchange.
  • a method for establishing a local exchange includes: determining, by a base station controller (BSC) in a BSS, whether a calling party constituting a session can establish a local exchange, and if a local exchange can be established, The BSC establishes a local exchange for both parties to the call.
  • BSC base station controller
  • MSC Mobile Switch Center
  • Embodiments of the present invention provide a method, an apparatus, and a system for establishing a local exchange, which are capable of establishing a local call pair for a local exchange condition in a base station subsystem under the control of a mobile switching center. Exchange.
  • an embodiment of the present invention provides a method for establishing a local exchange, including: sending a local exchange request message to a mobile switching center; receiving a local exchange setup message returned by the mobile switching center, and establishing a local exchange setup message according to the local exchange Local exchange.
  • an embodiment of the present invention further provides a method for establishing a local exchange, including: receiving a local exchange request message sent by a base station subsystem; obtaining, according to the local exchange request message, a call pair from the base station subsystem a call pair that satisfies a local exchange condition; a local exchange setup message is sent to the base station subsystem, the local exchange setup message being used to instruct the base station subsystem to establish a local exchange for the call pair that satisfies the local exchange condition.
  • the embodiment of the present invention further provides a device for establishing a local exchange, which is applied in a base station subsystem, and includes:
  • a first sending unit configured to send a local exchange request message to the mobile switching center
  • an establishing unit configured to receive a local exchange setup message returned by the mobile switching center, and establish a local exchange according to the local exchange setup message.
  • an embodiment of the present invention further provides a mobile switching center, including:
  • a receiving unit configured to receive a local exchange request message sent by the base station subsystem
  • an obtaining unit configured to acquire, according to the local exchange request message received by the receiving unit, a call pair that satisfies a local exchange condition from a call pair of the base station subsystem;
  • a sending unit configured to send a local exchange setup message to the base station subsystem, where the local exchange setup message is used to indicate that the base station subsystem establishes a local exchange for the call pair that meets the local exchange condition acquired by the acquiring unit.
  • an embodiment of the present invention further provides a system for establishing a local exchange, including the apparatus for establishing a local exchange and a mobile switching center as described above.
  • the method, device and system for establishing a local exchange provided by the embodiment of the present invention, the local exchange request is initiated by the device establishing the local exchange on the base station subsystem side, so that the local exchange is initiated more timely; since the device for establishing the local exchange is based on the mobile
  • the local exchange setup message sent by the switching center establishes local switching, so that the mobile switching center can control the call pair in the base station subsystem that satisfies the local exchange.
  • the technical solution provided by the embodiment of the present invention can establish a local exchange for a call pair in the base station subsystem that satisfies the local exchange condition under the control of the mobile switching center.
  • FIG. 1 is a flowchart of a method for establishing a local exchange according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for establishing a local exchange according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for establishing a local exchange according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram 1 of a device for establishing a local exchange according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an establishing unit 402 in a device for establishing a local exchange according to an embodiment of the invention shown in FIG. 4;
  • FIG. 6 is a schematic structural diagram 2 of a device for establishing a local exchange according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram 1 of a mobile switching center according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a transmitting unit 703 in a mobile switching center according to an embodiment of the present invention shown in FIG. 7;
  • FIG. 9 is a schematic structural diagram 2 of a mobile switching center according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a method and a device for establishing a local exchange. And system.
  • the method for establishing a local exchange includes: Step 101: Send a local exchange request message to the MSC.
  • Step 102 Receive a local exchange setup message returned by the MSC, and establish a local exchange according to the local exchange establishment message.
  • the method for establishing a local exchange can initiate a local exchange request to the MSC, so that the local exchange is initiated in a timely manner.
  • the method provided by the embodiment of the present invention can establish a local exchange according to the local exchange setup message sent by the MSC, so that The MSC is capable of controlling a call pair in the BSS that satisfies the local exchange.
  • the technical solution provided by the embodiment of the present invention can establish a local exchange for a call pair in the BSS that satisfies the local exchange condition under the control of the MSC.
  • another embodiment of the present invention further provides a method for establishing a local exchange, including:
  • Step 201 Receive a local exchange request message sent by the BSS.
  • Step 202 Obtain a call pair that satisfies the local exchange condition from the call pair of the BSS according to the local exchange request message.
  • Step 203 Send a local exchange setup message to the BSS, where the local exchange setup message is used to instruct the BSS to establish a local exchange for the call pair that meets the local exchange condition.
  • the method for establishing a local exchange provided by the embodiment of the present invention, the BSS actively initiates a local exchange request, so that the local exchange is initiated more timely; the method provided by the embodiment of the present invention can send a local exchange setup message to the BSS, and the BSS is indicated by the message.
  • Establishing a local exchange for the call pair that satisfies the local exchange condition enables the method to control the establishment of a locally switched call pair.
  • the technical solution provided by the embodiment of the present invention can establish a local exchange for a call pair in the BSS that satisfies the local exchange condition under the control of the MSC.
  • a method for establishing a local exchange includes: Step 301: A BSS determines whether an application for establishing a local exchange is required.
  • the BSS may determine, according to the usage status of the transmission resource, whether to apply for establishing a local exchange, for example, if the BSS determines an Abis interface between the BSC and a Base Transceiver Station (BTS) or between the BSC and the MSC. If the user plane transmission resource of the A interface is tight, it is determined that the local exchange needs to be established; or the local exchange establishment request period may be determined according to a preset local exchange establishment request period, for example: when a preset local exchange establishment application period arrives, Then, the BSS determines that it needs to apply for establishing a local exchange; of course, in actual use, the BSS can also determine whether it is necessary to establish a local exchange by other means, and this is not done in each case.
  • BSS Base Transceiver Station
  • Step 302 If it is required to apply for establishing a local exchange, the BSS sends a local exchange request message to the MSC.
  • the step 302 may be performed by the BSC in the BSS to send a Local Switch Required message to the MSC, where the local exchange request message may be a connectionless signaling connection control protocol (Signing)
  • the local exchange request message may carry related information such as the identifier of the BSS.
  • Step 303 The MSC receives a local exchange request message sent by the BSS.
  • Step 304 The MSC obtains, according to the local exchange request message received in step 303, a call pair that satisfies the local exchange condition from the call pair of the BSS.
  • the MSC may determine, according to the information about the BSS that is carried in the local exchange request message, the BSS that needs to establish a local exchange, and record the cell identifier of the call pair that constitutes the session in the BSS (Cell- ID), determining whether the call pair in the BSS satisfies the local exchange condition in combination with the codec used by the call pair, and the current service status and the like.
  • Cell- ID the cell identifier of the call pair that constitutes the session in the BSS
  • the MSC determines that the call pair satisfies the local exchange condition; If the Cell-IDs of the call pairs constituting the session in the BSS are the same, the codec mode of the call pair is different, and no other supplementary services are performed between the call pairs, the MSC determines if the code converter (Transcoder, TC) is physically located on the BSS side, then the call pair satisfies the local exchange condition, otherwise, the local exchange condition is not satisfied. Whether the call pair in the middle meets the local exchange condition, and this is not done here - repeat.
  • Transcoder Transcoder
  • Step 305 The MSC sends a local exchange setup message to the BSS, where the local exchange setup message is used to instruct the BSS to establish a local exchange for the call pair that meets the local exchange condition acquired in the step 304.
  • the local exchange setup message may be a local exchange command (Local Switch Command) message, and the local exchange command message is a connected SCCP message, and the MSC may obtain the local exchange through the step 304.
  • the local exchange command may carry a caller identity (Call-ID) and/or a called party Call-ID of the call pair that satisfies the local exchange condition, for example: if the local exchange command The message is transmitted by the calling party's SCCP connection of the call pair that satisfies the local exchange condition, and the local exchange command message may only carry the called party Call-ID of the call pair that satisfies the local exchange condition, or may carry the same The called party Call-ID, which in turn carries the calling party Call-ID; if the local exchange command message is transmitted through the SCCP connection of the called party that satisfies the call pair of the local exchange condition, the local exchange The command message may carry only the calling party Call-ID of the call pair that satisfies the local switching condition, and may also carry the calling party Call-ID and carry the called party Call-ID; Deriving a local exchange command message by calling the called party and the called party of the call pair satisfying the local exchange condition
  • Call-ID caller identity
  • the local exchange command message transmitted through the calling party SCCP connection may carry only the called party Call-ID of the call pair that satisfies the local exchange condition, and the local exchange command message transmitted through the called party SCCP connection may only carry Calling party Call-ID of the call pair that satisfies the local exchange condition.
  • the two local exchange command messages transmitted by the calling party SCCP connection and the called party SCCP connection may also carry the call satisfying the local exchange condition at the same time.
  • the MSC may send the local exchange command message to the BSS through the SCCP connection of each calling party and/or called party of the call pair that satisfies the local switching condition, respectively;
  • the local exchange The establishment message may also be a Local Switch Indication message
  • the local exchange indication message is a connectionless SCCP message
  • the MSC may add the call that meets the local exchange condition acquired in step 304 to the local exchange indication message.
  • the call list may also contain other identification information for each pair of call pairs that meet the local exchange, and this is not done for each case--details;
  • the MSC may send a local exchange setup message to the BSS in any one of the above manners.
  • the local exchange setup message may also be sent to the BSS in other manners. - Narration.
  • Step 306 The BSS receives a local exchange setup message returned by the MSC, according to the local handover. Change the setup message to establish a local exchange.
  • the BSS may establish a local exchange according to the local exchange setup message by any one of the following methods:
  • the BSS establishes a local exchange for the call pair indicated by the call pair list that satisfies the local exchange condition
  • the BSS is based on the local The command message is exchanged to establish a local exchange for the call pair that satisfies the local exchange condition. For example, if the local exchange command message is transmitted by a calling party SCCP connection of a call pair that satisfies a local exchange condition, the BSS may be configured according to the called party Call-ID carried in the local exchange command message.
  • the call indicated by the called party Call-ID establishes a local exchange with the call corresponding to the calling party SCCP; if the local exchange command message is transmitted by the called party SCCP connection of the call pair satisfying the local exchange condition, the BSS And establishing, according to the calling party Call-ID carried in the local exchange command message, a local exchange for the call indicated by the calling party Call-ID and the call corresponding to the called party SCCP; if the local exchange command
  • the message is transmitted by the calling party and the called party's SCCP connection of the calling pair satisfying the local switching condition, and the BSS may according to the called party Call carried in the local exchange command message transmitted through the calling party SCCP connection.
  • the BSS may also be transmitted according to the SCCP connection through the called party
  • the calling party Call-ID carried in the local exchange command message establishes a local exchange for the call indicated by the calling party Call-ID and the call corresponding to the called party SCCP. It should be noted that if the local exchange command message carries both the calling party Call-ID and the called party Call-ID of the call pair satisfying the local exchange condition, the BSS may directly root. According to the calling party Call-ID and the called party Call-ID, a local exchange is established for the calling party indicated by the calling party Call-ID and the called party Call-ID.
  • the BSS may also establish a local exchange according to the local exchange setup message by other means, and this is not done in each case.
  • Step 307 The BSS sends a message to the MSC to indicate a local exchange establishment result.
  • the message for indicating the result of the local exchange establishment may be a connected SCCP message, and the BSS may pass the calling party and/or the called party of the call pair that satisfies the local exchange condition.
  • the SCCP connection sends the message for indicating the result of the local exchange establishment. Specifically, if the local exchange of the call pair that satisfies the local exchange condition is successfully established, the message indicating the local exchange establishment result is completed by the local exchange.
  • the local exchange complete message may carry local exchange establishment success indication information, and the calling party Call-ID and/or the called party Call-ID of the call pair satisfying the local exchange condition, if If the local exchange establishment of the call pair that meets the local exchange condition fails, the message indicating the local exchange establishment result is a local switch failure (Local Switch Failure) message, and the local exchange failure message may carry the local exchange establishment failure indication information. And the calling party Call of the call pair that satisfies the local exchange condition ID and / or called party Call-ID;
  • the message for indicating the local exchange establishment result may also be a connectionless SCCP message, for example, : a Local Switch Performed message
  • the local exchange execution message may carry a list of call pairs that are successfully established by the local exchange, or a list of call pairs that fail to establish a local exchange, or a list of call pairs that satisfy the local exchange condition and the local call list that satisfies the local exchange condition The information of the local exchange establishment result of each pair of calls in the call pair of the exchange condition.
  • Step 308 The MSC receives a message sent by the BSS to indicate a local exchange establishment result, where And operating the call pair that satisfies the local exchange condition according to the message used to indicate the result of the local exchange establishment.
  • the MSC releases the occupied A-interface user plane resource of the call pair indicated by the local exchange complete message;
  • the message of the local exchange establishment result is a local exchange failure message, and the MSC maintains the call state of the call pair indicated by the local exchange failure message unchanged; if the message for indicating the local exchange establishment result is a connectionless SCCP message If the local exchange performs the message, the MSC operates the call pair that meets the local exchange condition according to the information carried in the local exchange execution message, for example: if the local exchange execution message carries the local exchange successfully established.
  • the MSC releases the A-interface user plane resource occupied by the call pair indicated by the call pair list successfully established by the local exchange, and the MSC maintains the call pair list that is successfully established by the local exchange,
  • the local exchange can be divided into two types: one is that the local exchange in the BTS - the call pair of the BSS is located in the same BTS or in the same BTS cluster, and the local exchange occurs in The call pair is in the BTS that is connected in common; the other is, the local exchange in the BSC - the call pair of the BSS is located in the same BSC, but is located in a different BTS or BTS cluster, and the local exchange occurs in the call pair Connected in the BSC. If the call pair that establishes the local exchange is the local exchange in the BTS, the embodiment of the present invention further includes the step of releasing the Abis interface user plane resource occupied by the call pair by the BSS.
  • the local exchange request is initiated by the BSS side, so that the local exchange is initiated more timely; and the BSS is locally switched according to the local exchange setup message sent by the MSC, so that the The MSC can control the call pair in the BSS that satisfies the local exchange.
  • the technical solution provided by the embodiment of the present invention can be BSS in time under the control of the MSC. A call pair that satisfies the local exchange condition establishes a local exchange.
  • the embodiment of the present invention further provides a device for establishing a local exchange, which is applied in a base station subsystem, and includes:
  • a first sending unit 401 configured to send a local exchange request message to the mobile switching center
  • the establishing unit 402 is configured to receive a local exchange setup message returned by the mobile switching center, and establish a local exchange according to the local exchange setup message. For the specific implementation method, refer to step 306 shown in FIG. 3, where No longer.
  • the establishing unit 402 may include:
  • a first establishing subunit 4021 configured to: if the local exchange setup message carries a call pair list that satisfies a local exchange condition, establish a local exchange for the call pair indicated by the call pair list that satisfies the local exchange condition; and/or
  • a second establishing sub-unit 4022 configured to perform, according to the local exchange, if the local exchange setup message is transmitted by a calling party and/or a called party's signaling connection control protocol SCCP connection that satisfies a call pair of a local exchange condition A message is established to establish a local exchange for the call pair that satisfies the local exchange condition.
  • the apparatus for establishing a local exchange may further include:
  • the second sending unit 403 is configured to send, according to the local exchange establishment result of the establishing unit 402, a message for indicating a local exchange establishment result to the mobile switching center, and a specific implementation method thereof is shown in FIG. As described in step 307, details are not described herein again.
  • the apparatus for establishing a local exchange may further include:
  • the determining unit 404 is configured to determine whether it is required to apply for establishing a local exchange. If the application needs to establish a local exchange, the first sending unit 401 is instructed to send a local exchange request message to the mobile switching center. As shown in step 301, it will not be described here.
  • the device for establishing local exchange may be a base station controller or a base station.
  • the device for establishing a local exchange provided by the embodiment of the present invention can initiate a local exchange request to the MSC, so that the local exchange is initiated in a timely manner.
  • the device provided by the embodiment of the present invention can establish a local exchange according to the local exchange setup message sent by the MSC, so that The MSC is capable of controlling a call pair in the BSS that satisfies the local exchange.
  • the technical solution provided by the embodiment of the present invention can establish a local exchange for a call pair in the BSS that satisfies the local exchange condition under the control of the MSC.
  • an embodiment of the present invention further provides a mobile switching center, including:
  • the receiving unit 701 is configured to receive a local exchange request message sent by the base station subsystem.
  • the obtaining unit 702 is configured to obtain, according to the local exchange request message received by the receiving unit 701, a call pair that meets a local exchange condition from a call pair of the base station subsystem, and a specific implementation method thereof is shown in FIG. Step 304, which will not be described here;
  • the sending unit 703 is configured to send a local exchange setup message to the base station subsystem, where the local exchange setup message is used to indicate that the base station subsystem establishes a local exchange for the call pair that meets the local exchange condition acquired by the acquiring unit 702.
  • the local exchange setup message is used to indicate that the base station subsystem establishes a local exchange for the call pair that meets the local exchange condition acquired by the acquiring unit 702.
  • the sending unit 703 may include:
  • a first sending subunit 7031 configured to send a local exchange setup message carrying a call pair list that satisfies a local exchange condition
  • the second sending subunit 7032 is configured to send the local exchange setup message by using the SCCP connection of the calling party and/or the called party of the call pair that meets the local switching condition acquired by the acquiring unit 702.
  • the mobile switching center may further include:
  • the operation unit 704 is configured to receive a message sent by the base station subsystem to indicate a local exchange establishment result, and use the message for indicating a local exchange establishment result to obtain a call that meets the local exchange condition acquired by the acquiring unit.
  • the specific implementation method can be seen in Figure 3. The description of step 308 is not repeated here.
  • the BSS actively initiates a local exchange request, so that the local exchange is initiated more timely.
  • the mobile switching center provided by the embodiment of the present invention can send a local exchange setup message to the BSS, and the BSS is indicated by the message. Establishing a local exchange for the call pair that satisfies the local exchange condition enables the mobile switching center to control the establishment of a locally switched call pair.
  • the technical solution provided by the embodiment of the present invention can establish a local exchange for a call pair in the BSS that satisfies the local exchange condition in time under the control of the MSC.
  • the embodiment of the present invention further provides a system for establishing a local exchange, including: a device for establishing a local exchange as shown in FIGS. 4 to 6 and a mobile switching center as shown in FIGS.
  • the system for establishing a local exchange provided by the embodiment of the present invention initiates a local exchange request by the device establishing the local exchange on the base station subsystem side, so that the local exchange is initiated more timely; since the device for establishing the local exchange is sent according to the mobile switching center
  • the local exchange setup message establishes local switching so that the mobile switching center can control the call pair in the base station subsystem that satisfies the local exchange.
  • the technical solution provided by the embodiment of the present invention can establish a local exchange for a call pair in a base station subsystem that satisfies the local exchange condition under the control of the mobile switching center.
  • the method, device and system for establishing local exchange provided by the embodiments of the present invention can be applied in communication systems such as WCDMA, TD-SCDMA and LTE.

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

Abstract

Les modes de réalisation de la présente invention portent sur un procédé, un dispositif et un système d'établissement du commutateur local, qui concernent le domaine des communications pour résoudre les problèmes selon lesquels le centre de commutation mobile (MSC) ne peut pas établir à temps le commutateur local pour la paire d'appels dans le sous-système de station de base (BSS), et le commutateur local établi par le contrôleur de station de base (BSC) peut entraîner que le MSC soit incapable de commander l'appel établissant le commutateur local. La technique décrite par la présente invention comprend les opérations suivantes : envoi d'un message de requête de commutateur local à un centre de commutation mobile (MSC) ; réception d'un message de configuration de commutateur local renvoyé par le centre de commutation mobile, établissement du commutateur local selon le message de configuration de commutateur local. La technique décrite par les modes de réalisation de la présente invention peut s'appliquer dans des systèmes de communications tels que WCDMA, TD-SCDMA et LTE etc.
PCT/CN2010/070575 2009-02-10 2010-02-09 Procédé, dispositif et système d'établissement du commutateur local WO2010091627A1 (fr)

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CN200910005894.2 2009-02-10
CN200910005894A CN101801105A (zh) 2009-02-10 2009-02-10 建立本地交换的方法、装置和系统

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388711A (zh) * 2001-05-30 2003-01-01 华为技术有限公司 一种实现移动通讯系统呼叫接续中语音信道交换的方法
CN1889760A (zh) * 2005-06-27 2007-01-03 华为技术有限公司 一种实现无线本地环路系统中本地交换的方法
WO2007104743A1 (fr) * 2006-03-14 2007-09-20 Cell & Sat Procédé d'optimisation des ressources de transmission par bouclage local dans un réseau cellulaire de radiocommunication mobile, réseau et adaptateurs locaux correspondants
CN101185299A (zh) * 2005-05-27 2008-05-21 艾利森电话股份有限公司 无线电接入网中的本地交换
CN101272626A (zh) * 2008-04-16 2008-09-24 华为技术有限公司 实现本地交换的方法、装置及系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388711A (zh) * 2001-05-30 2003-01-01 华为技术有限公司 一种实现移动通讯系统呼叫接续中语音信道交换的方法
CN101185299A (zh) * 2005-05-27 2008-05-21 艾利森电话股份有限公司 无线电接入网中的本地交换
CN1889760A (zh) * 2005-06-27 2007-01-03 华为技术有限公司 一种实现无线本地环路系统中本地交换的方法
WO2007104743A1 (fr) * 2006-03-14 2007-09-20 Cell & Sat Procédé d'optimisation des ressources de transmission par bouclage local dans un réseau cellulaire de radiocommunication mobile, réseau et adaptateurs locaux correspondants
CN101272626A (zh) * 2008-04-16 2008-09-24 华为技术有限公司 实现本地交换的方法、装置及系统

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