JP2006254283A - Communication control apparatus - Google Patents

Communication control apparatus Download PDF

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Publication number
JP2006254283A
JP2006254283A JP2005070597A JP2005070597A JP2006254283A JP 2006254283 A JP2006254283 A JP 2006254283A JP 2005070597 A JP2005070597 A JP 2005070597A JP 2005070597 A JP2005070597 A JP 2005070597A JP 2006254283 A JP2006254283 A JP 2006254283A
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control unit
reset
base
request signal
data transmission
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JP2005070597A
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Japanese (ja)
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Yasuhiro Matsuzaka
康宏 松坂
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Hitachi Kokusai Electric Inc
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Hitachi Kokusai Electric Inc
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Priority to JP2005070597A priority Critical patent/JP2006254283A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication control apparatus which can avoid the occurrence of late collision errors due to base-band controller reset in a wireless base station apparatus, and to prevent transmission quality degradation within a communications network. <P>SOLUTION: In the communication control apparatus, when transmitting a reset request signal to a base-band controller 25, a maintenance and monitor function 21 transmits a reset preprocessing request signal to a call processing controller. The call processing controller that received the reset preprocessing request signal suspends data transmission to the base-band controller, and the base-band controller that received the reset request signal performs reset processing for a base-band controller card. After suspending data transmission to the base-band controller for a specified time, the call processing controller performs data transmission through communication control functions. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、通信制御機能を有する無線基地局において、レイトコリジョンエラーの発生を回避する技術に関するものである。   The present invention relates to a technique for avoiding the occurrence of a late collision error in a radio base station having a communication control function.

無線基地局装置内においてＬＡＮ（Ｌｏｃａｌ Ａｒｅａ Ｎｅｔｗｏｒｋ）経由でカード間通信を行なっている機能部（以下ベースバンド制御部、保守・監視制御部、呼制御部）があるが、保守・監視制御部からベースバンド制御部へリセット要求を出し、ベースバンド制御部がリセットした際に通信網内にキャリアセンス（使用するチャネルが空いているか否か調べる信号）信号とコリジョン（コリジョンとは、同一の伝送路に異なる端末からほぼ同時にデータが送出されることによって発生する信号の衝突現象のことであり、信号が衝突すると異常な電気信号が発生されるためにデータが破損してしまう。）信号が発生していた。この時、呼処理制御部から出力されている送信データと前記信号が衝突すると、呼処理制御部にて、通常ありえない致命的なエラーである、レイトコリジョンエラーを検出していた。そのレイトコリジョンエラーの発生を契機に通信網内の伝送品質が一時低下していた。   There are functional units (hereinafter referred to as baseband control unit, maintenance / monitoring control unit, call control unit) that perform inter-card communication via a LAN (Local Area Network) in the radio base station apparatus. When a reset request is issued to the baseband control unit, and the baseband control unit resets, a carrier sense (signal for checking whether or not a channel to be used is available) signal and collision (collision is the same transmission path) This is a signal collision phenomenon that occurs when data is sent almost simultaneously from different terminals, and when the signals collide, an abnormal electrical signal is generated and the data is damaged.) It was. At this time, when the transmission data output from the call processing control unit collides with the signal, the call processing control unit detects a late collision error, which is a fatal error that cannot normally be made. Due to the occurrence of the late collision error, the transmission quality in the communication network was temporarily lowered.

従来の技術について、図面を用いて説明する。図１は、従来のレイトコリジョンエラー発生の概略図である。図は、保守・監視制御部、呼処理制御部、ベースバンド制御部の関係について記載している。まず、保守・監視制御部４からベースバンド制御部２へリセット要求１が送信される。このリセット要求１をベースバンド制御部２が受け付け、ベースバンド制御部カードにリセット処理を行なう。このリセット処理を契機に通信網内にキャリアセンス信号とコリジョン信号３が発生してしまっていた。   Conventional techniques will be described with reference to the drawings. FIG. 1 is a schematic diagram of conventional late collision error occurrence. The figure describes the relationship between the maintenance / monitoring control unit, the call processing control unit, and the baseband control unit. First, a reset request 1 is transmitted from the maintenance / monitoring control unit 4 to the baseband control unit 2. The baseband control unit 2 receives the reset request 1 and performs a reset process on the baseband control unit card. As a result of this reset process, a carrier sense signal and a collision signal 3 are generated in the communication network.

また、他の従来の技術として、例えば、特開平１０−５６４７０号公報に記載されているように、コリジョン発生確率を減少させ、有効にＬＡＮ帯域を活用することが出来るネットワーク通信装置の技術について開示されている。   Further, as another conventional technique, for example, as disclosed in Japanese Patent Laid-Open No. 10-56470, a technique of a network communication apparatus capable of reducing the collision occurrence probability and effectively utilizing the LAN bandwidth is disclosed. Has been.

特開平１０−５６４７０号公報JP-A-10-56470

本発明は、このようなレイトコリジョンエラーの発生を回避するためなされたもので、無線基地局装置内でベースバンド制御部リセットを契機に発生するレイトコリジョンエラーの発生を回避し、通信網内の伝送品質低下を防ぐことが出来る通信制御装置を提供することを目的とする。   The present invention was made to avoid the occurrence of such a late collision error, avoids the occurrence of a late collision error that occurs when the baseband control unit is reset in the radio base station apparatus, and It is an object of the present invention to provide a communication control device that can prevent transmission quality degradation.

本発明は、保守・監視機能部よりベースバンド制御部へリセット要求信号を発生するに際し、前記保守・監視機能部より呼処理制御部へリセット前処理要求信号を送信し、リセット前処理要求信号を受信した呼処理制御部は、ベースバンド制御部へのデータ送信を一時停止し、前記リセット要求信号を受信したベースバンド制御部は、ベースバンド制御部カードのリセット処理を実施し、前記呼制御部はベースバンド制御部へのデータ送信を一定時間停止た後、通信制御機能により、データ送信を行うことを特徴とする通信制御装置である。   In the present invention, when a reset request signal is generated from the maintenance / monitoring function unit to the baseband control unit, the reset / preprocessing request signal is transmitted from the maintenance / monitoring function unit to the call processing control unit. The received call processing control unit temporarily stops data transmission to the baseband control unit, and the baseband control unit that receives the reset request signal performs a reset process of the baseband control unit card, and the call control unit Is a communication control device that performs data transmission by a communication control function after data transmission to the baseband control unit is stopped for a certain period of time.

本発明により、無線基地局内でベースバンド制御部のリセットを契機に発生するレイトコリジョンエラーの発生を回避し、通信網内の伝送品質の低下を防ぐという効果が生じる。   According to the present invention, it is possible to avoid the occurrence of a late collision error that occurs when a baseband control unit is reset in a radio base station, and to prevent a decrease in transmission quality in the communication network.

以下本発明の実施の形態について、添付図面に基づいて説明する。図２はこの発明に係るレイトコリジョンエラー発生回避の概略図である。本図は、保守・監視制御部、呼処理制御部、ベースバンド制御部の関係について記載している。     Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 2 is a schematic diagram for avoiding the occurrence of a late collision error according to the present invention. This figure describes the relationship between the maintenance / monitoring control unit, the call processing control unit, and the baseband control unit.

まず、保守・監視制御部２１内にてベースバンド制御部２５へリセット要求２４が発生する。この際にリセット要求２４をベースバンド制御部２５へ送信する前に呼処理制御部へリセット前処理２２を送信しているが、呼処理制御部のリセット前処理２２にて、送信一時停止支援タスク２３を起動し、呼処理制御部の通信制御機能によるデータ送信を一時停止する。 First, a reset request 24 is generated to the baseband control unit 25 in the maintenance / monitoring control unit 21. At this time, the reset pre-processing 22 is transmitted to the call processing control unit before the reset request 24 is transmitted to the baseband control unit 25. In the pre-reset processing 22 of the call processing control unit, a transmission suspension support task 23 to temporarily stop data transmission by the communication control function of the call processing control unit.

データ送信の一時停止は保守・監視制御部２１がベースバンド制御部２５へリセット要求２４を送信し、ベースバンド制御部２５がリセット処理を行い、キャリアセンス信号とコリジョン信号が発生し終わるまでの十分余裕を持たせた時間を設定している。 Suspension of data transmission is sufficient until the maintenance / monitoring control unit 21 transmits a reset request 24 to the baseband control unit 25, the baseband control unit 25 performs reset processing, and generation of the carrier sense signal and the collision signal is completed. A time with a margin is set.

保守・監視制御部２１は、呼処理制御部へリセット前処理要求２２を送信した後、ベースバンド制御部２５にリセット要求２４を送信する。その後、ベースバンド制御部２５がリセット処理を行い、通信網内にキャリアセンス信号とコリジョン信号が発生するが、この時、呼処理制御部は通信制御機能によるデータ送信を停止しているので、呼処理制御部のレイトコリジョンエラーの発生は無い。そして、通信網内のキャリアセンス信号とコリジョン信号発生終了後、呼処理制御部の通信制御機能によるデータ送信を再開している。これにより呼処理制御部のレイトコリジョンエラー検出に伴う通信網内の伝送品質の一時低下を防ぐことが出来る。 The maintenance / monitoring control unit 21 transmits a reset pre-processing request 22 to the call processing control unit, and then transmits a reset request 24 to the baseband control unit 25. Thereafter, the baseband control unit 25 performs reset processing, and a carrier sense signal and a collision signal are generated in the communication network. At this time, the call processing control unit stops data transmission by the communication control function. There is no late collision error in the processing controller. Then, after the generation of the carrier sense signal and the collision signal in the communication network, data transmission by the communication control function of the call processing control unit is resumed. As a result, it is possible to prevent a temporary deterioration in transmission quality in the communication network due to the late collision error detection of the call processing control unit.

図３は、本発明のレイトコリジョンエラー発生回避のシーケンス図である。本図より、ベースバンド制御部カードリセット前の１００ｍｓからベースバンド制御部カードリセット後の３００ｍｓの間、呼処理制御部の通信制御機能によるデータ送信を停止していることが確認できる。 FIG. 3 is a sequence diagram for avoiding the occurrence of a late collision error according to the present invention. From this figure, it can be confirmed that the data transmission by the communication control function of the call processing control unit is stopped from 100 ms before the baseband control unit card reset to 300 ms after the baseband control unit card reset.

以上説明したように、本発明により、無線基地局装置内でベースバンド制御部のリセットを契機に発生していたレイトコリジョンエラーの発生を回避し、通信網内の伝送品質の一時低下を防ぐことが可能となる。   As described above, according to the present invention, it is possible to avoid the occurrence of a late collision error that has occurred due to the reset of the baseband control unit in the radio base station apparatus, and to prevent a temporary decrease in transmission quality in the communication network. Is possible.

従来のレイトコリジョンエラー発生の概略を示すOutline of conventional late collision error occurrence 本発明のレイトコリジョンエラー発生回避の概略を示すThe outline of the late collision error generation avoidance of this invention is shown. 本発明のレイトコリジョンエラー発生回避のシーケンスを示すThe sequence of the late collision error generation avoidance of this invention is shown

符号の説明Explanation of symbols

４ 保守・監視制御カード
２３ 送信一時停止支援タスク
２５ ベースバンド制御部
4 Maintenance and monitoring control card 23 Transmission suspension support task 25 Baseband control unit

Claims (1)

保守・監視機能部よりベースバンド制御部へリセット要求信号を発生するに際し、前記保守・監視機能部より呼処理制御部へリセット前処理要求信号を送信し、リセット前処理要求信号を受信した呼処理制御部は、ベースバンド制御部へのデータ送信を一時停止し、前記リセット要求信号を受信したベースバンド制御部は、ベースバンド制御部カードのリセット処理を実施し、前記呼制御部はベースバンド制御部へのデータ送信を一定時間停止た後、通信制御機能により、データ送信を行うことを特徴とする通信制御装置。
When the maintenance / monitoring function unit generates a reset request signal to the baseband control unit, the maintenance / monitoring function unit transmits the pre-reset processing request signal to the call processing control unit and receives the pre-reset processing request signal. The control unit temporarily stops data transmission to the baseband control unit, the baseband control unit that receives the reset request signal performs a reset process of the baseband control unit card, and the call control unit performs baseband control. A communication control apparatus, wherein data transmission is performed by a communication control function after data transmission to a unit is stopped for a certain period of time.
JP2005070597A 2005-03-14 2005-03-14 Communication control apparatus Pending JP2006254283A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011015048A1 (en) * 2009-08-06 2011-02-10 华为技术有限公司 Release processing method for connection resources and apparatus thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011015048A1 (en) * 2009-08-06 2011-02-10 华为技术有限公司 Release processing method for connection resources and apparatus thereof
US8737970B2 (en) 2009-08-06 2014-05-27 Huawei Technologies Co., Ltd. Method and apparatus for processing release of connection resources

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