WO2007003115A1 - Procede de convergence rapide de service point-point et peripherique fournisseur - Google Patents

Procede de convergence rapide de service point-point et peripherique fournisseur Download PDF

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Publication number
WO2007003115A1
WO2007003115A1 PCT/CN2006/001487 CN2006001487W WO2007003115A1 WO 2007003115 A1 WO2007003115 A1 WO 2007003115A1 CN 2006001487 W CN2006001487 W CN 2006001487W WO 2007003115 A1 WO2007003115 A1 WO 2007003115A1
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WO
WIPO (PCT)
Prior art keywords
channel
state information
data link
status
link connection
Prior art date
Application number
PCT/CN2006/001487
Other languages
English (en)
Chinese (zh)
Inventor
Yuhong Liu
Yuan Xiong
Jingli Shao
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 WO2007003115A1 publication Critical patent/WO2007003115A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks

Definitions

  • the present invention relates to the field of network communication technologies, and specifically relates to a DPAS/DASS User Adaptation Layer Protocol (DPNSS/DASS User Adaptation Layer Protocol; Digital Private Network Signaling System/ Digital Access Signaling System User Adaptation) Layer Protocol, Digital Private Network Signaling System/Digital Access Signaling System User Adaptation Layer Protocol) Channel state information transmission method and apparatus.
  • DPAS/DASS User Adaptation Layer Protocol Digital Private Network Signaling System/ Digital Access Signaling System User Adaptation
  • Digital Private Network Signaling System/Digital Access Signaling System User Adaptation Layer Protocol Digital Private Network Signaling System/Digital Access Signaling System User Adaptation Layer Protocol
  • NGN Next Generation Network
  • PSTN Public Switched Telephone Network
  • IP Internet Protocol
  • SIGTRAN signaling was developed by a dedicated SIGTRAN working group established by the Internet Engineering Task Force (IETF).
  • SIGTRAN signaling consists of a set of protocol families with similar basic functions, the purpose of which is to ensure the reliable transmission of traditional circuit-switched signaling over the IP network.
  • DUA is one of the SIGTRAN protocol families.
  • DPNSS 1 and DASS 2 are a private network signaling system widely used in telecommunications networks.
  • its Layer 2/3 protocol needs to be separated and run on the "Media Gateway” and "Media Gateway Controller” devices, such as DPNSS L3 or DASS 2 L3 protocol. Need to run on the "Media Gateway Controller” device, the DPNSS L2 or DASS 2 L2 protocol needs to run on the "Media Gateway” device.
  • the DUA protocol needs to be introduced to implement interworking of the DPNSS L3/L2 layer protocol or to implement interworking of the DASS 2 L3/L2 layer protocol.
  • the signaling of the private branch exchange (PBX) 110 in the private network is connected to the NGN network through the SG (Signaling Gateway) device 120, and accepts the MGC (Media Gateway Controller). ) Control of device 130.
  • the physical medium through which the PBX device 110 and the SG device 120 communicate is an E1 or T1 interface.
  • the operation of the DASS 2 protocol on the NGN is similar to that of the DPNSS 1 protocol described above on the NGN.
  • the DUA protocol entity on the MGC device 130 side can query the DLC (Data Link) of the DPNSS L2 protocol on the SG device 120 side through the corresponding DLC Status Message. Connection, data link link) channel status.
  • DLC Data Link
  • the message structure of the DLC Status Message used by the DUA protocol for E1 is shown in Figure 2.
  • the message structure of the DLC Status Message includes the tag (Tag), the length (Length), and the status bits corresponding to each channel number (D1 to D63).
  • the status of a channel number is represented by 2 Bit bits, which can represent up to 4 different status values of a channel.
  • a channel can contain up to five status values, namely: OUT OF SERVICE, IDLE, RESET ATTEMPTED, RESET COMPLETE, INFORMATION TRANSFER ( Information transfer).
  • the invention provides a channel state information transmission method and device based on the DUA protocol to meet channel state query requirements.
  • a channel state information transmission based on a DUA protocol is provided.
  • Input methods including:
  • Channel state information for each channel is transmitted to the peer according to the extended data link connection status message.
  • the process of extending the data link connection status message specifically includes:
  • the process of extending the data link connection status message specifically includes:
  • the bits of the channel status field corresponding to each channel in the data link connection status message are expanded to at least three bits.
  • the process of extending the data link connection status message specifically includes:
  • the value of the label of the data link connection status message is expanded to at least two.
  • a channel state information transmission method based on a DUA protocol including:
  • the transmitting end carries the channel state information of each channel in the extended data link connection state message for sending;
  • the peer obtains channel state information of each channel from the extended data link connection status message.
  • the process of carrying the channel state information of each channel in the extended data link connection state message specifically includes:
  • the channel status information corresponding to the channel status of each channel is determined;
  • the channel status information is carried in the channel status field of the extended bit of the data link connection status message.
  • the process of carrying the channel state information of each channel in the extended data link connection state message specifically includes:
  • the channel status information and the tag value corresponding to the channel status of each channel are determined;
  • the channel status information and the tag value are carried in the data link connection status message.
  • the tag value includes at least two values.
  • the channel status includes: exit service, idle, reset attempt, reset complete, information transfer.
  • the sender and the peer are: a digital private network signaling system protocol entity, or a digital access signaling system protocol entity.
  • a channel state information transmission apparatus based on a DUA protocol including:
  • a sending unit configured to carry channel state information of each channel in an extended data link connection status message for sending
  • a receiving unit configured to obtain channel state information of each channel from the received extended data link connection status message.
  • the sending unit includes:
  • a channel state information determining unit configured to determine channel state information corresponding to channel states of each channel when the channel state information needs to be transmitted
  • the bearer unit 'is used to carry the channel status information in the channel status field of the extended bit of the data link connection status message.
  • the sending unit includes:
  • the channel status information determining unit determines, when the channel status information needs to be transmitted, the channel status information and the label value corresponding to the channel status of each channel;
  • the bearer unit is configured to transmit the status information of the channel and the value of the label to the peer in the data link connection status message.
  • the channel state information is transmitted by extending the data link link state message, so that the present invention not only can meet the transmission requirements of multiple channel state information existing in each channel, but also can meet the potentially increased channel in the future. Status information such as transmission of abnormal channel status information is required.
  • DRAWINGS 1 is a schematic diagram of the operation of the DPNSS 1 protocol on the NGN in the prior art
  • FIG. 2 is a schematic diagram of the message structure of the DLC Status Message in the prior art
  • FIG. 3 is a schematic diagram of the message structure of the DLC Status Message according to the present invention
  • the core of the present invention is: extending a data link connection status message, and transmitting channel status information of each channel to a peer according to the extended data link connection status message.
  • a channel can contain up to five status values, namely:
  • the present invention needs to extend the DLC Status Message.
  • the method for message extension in the present invention is flexible. The following mainly introduces two embodiments of message extension.
  • Embodiment 1 Extend the bit status of the channel status field corresponding to each channel in the DLC Status Message, so that the channel status field is at least 3 bits, for example, the bit status of the channel status field corresponding to each channel in the DLC Status Message may be expanded to 4 bits, for example, the bit position of the channel status field corresponding to each channel in the DLC Status Message can be expanded to one byte.
  • the channel status field corresponding to each channel in the DLC Status Message is 4 bits.
  • the DLC Status Message can transmit 16 different channel status information, which can meet the transmission requirements of the current five channel status information. It is also capable of meeting the transmission needs of potentially increased channel state information such as abnormal channel state information in the future.
  • the channel status information and the channel status carried in the DLC Status Message are corresponding relationships, that is, one channel status information only indicates one channel status.
  • the transmitting end first needs to determine the channel status of each channel, and the ratio of the channel status of each channel.
  • the channel status information of the special bit is then transmitted to the opposite end by carrying the channel status information of the corresponding 4-bit bit of each channel in the DLC Status Message.
  • the peer only needs to determine the status of each channel on the sender according to the channel status information carried in the DLC Status Message.
  • the channel status field corresponding to each channel in the DLC Status Message is still 2 bits.
  • the DLC Status Message can transmit 8 different channel status information, which can meet the current 5 channels.
  • the transmission requirements of the status information can also meet the transmission needs of potentially increased channel status information such as abnormal channel status information in the future.
  • the channel state information carried in the DLC Status Message must be formed together with the value of the label in the message to form a corresponding relationship, that is, a channel state information and a tag value uniquely correspond to each other.
  • Channel status The sender first needs to determine the channel status of each channel, and the channel status information and label value of the 2-bit corresponding to the channel status of each channel. Then, the channel status information and label value of the 2-bit corresponding to each channel are carried. Transfer to the peer in the DLC Status Message. The peer needs to determine the status of each channel on the sender according to the label value and channel status information carried in the DLC Status Message.
  • the receiving end in the present invention may be: a DPNSS 1 L2 protocol entity on the signaling gateway side or
  • FIG. 4 is a flow chart of the method of the present invention.
  • Step S41 the sending end carries the channel state information of each channel in the extended data link connection status message for sending;
  • Step S42 The peer acquires channel state information of each channel from the extended data link connection status message.
  • the channel state information transmission apparatus based on the DUA protocol provided by the present invention includes: a sending unit, configured to carry channel state information of each channel in an extended data link Send in the connection status message;
  • a receiving unit configured to obtain channel state information of each channel from the received extended data link connection status message.
  • the sending unit includes:
  • a channel state information determining unit configured to determine channel state information corresponding to channel states of each channel when the channel state information needs to be transmitted
  • a bearer unit configured to carry the channel status information in a channel status field of the extended bit of the data link connection status message.
  • the sending unit includes:
  • the channel status information determining unit determines, when the channel status information needs to be transmitted, the channel status information and the label value corresponding to the channel status of each channel;
  • the bearer unit is configured to transmit the status information of the channel and the value of the label to the peer in the data link connection status message.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Communication Control (AREA)

Abstract

Ce procédé de convergence rapide service point-point consiste à: a) à définir l'information de route d'au moins deux tunnels dont le noeud de départ est PE, le final de CE, et dont le noeud de fin est PE, l'extrémité de CE, connecté avec CE; b) à détecter le statut du tunnel afin d'obtenir l'information sur le statut du tunnel; c) à obtenir l'information de route disponible d'après l'information sur le statut de tunnel et l'information de route prédéfinie d'au moins deux tunnels et à transmettre les services d'après l'information de route disponible. Le CE d'extrémité peut transmettre les services directement d'après l'information de route prédéfinie pour d'autres tunnels, lorsque le tunnel n'est pas disponible, de telle sorte que le noeud d'extrémité du tunnel soit anormal afin d'éviter la resélection de la route. La vitesse de convergence des services point-point augmente et la fiabilité des services est améliorée.
PCT/CN2006/001487 2005-06-30 2006-06-28 Procede de convergence rapide de service point-point et peripherique fournisseur WO2007003115A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510080172.5 2005-06-30
CN2005100801725A CN1889564B (zh) 2005-06-30 2005-06-30 一种基于dua协议的通道状态信息传输方法

Publications (1)

Publication Number Publication Date
WO2007003115A1 true WO2007003115A1 (fr) 2007-01-11

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CN (1) CN1889564B (fr)
WO (1) WO2007003115A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480712B1 (en) * 1999-12-21 2002-11-12 Sharp Laboratories Of America, Inc. System and method for enhanced text message tracking in a wireless communication network
CN1490987A (zh) * 2002-10-18 2004-04-21 ��Ϊ�������޹�˾ 一种在同步数字网上传送数据业务的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1377161A (zh) * 2001-03-27 2002-10-30 陈常嘉 分组丢弃优先选择标记的方法和电路
CN1533113A (zh) * 2003-03-20 2004-09-29 华为技术有限公司 利用媒体网关控制协议进行传输链路状态检测的方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480712B1 (en) * 1999-12-21 2002-11-12 Sharp Laboratories Of America, Inc. System and method for enhanced text message tracking in a wireless communication network
CN1490987A (zh) * 2002-10-18 2004-04-21 ��Ϊ�������޹�˾ 一种在同步数字网上传送数据业务的方法

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CN1889564B (zh) 2010-12-08
CN1889564A (zh) 2007-01-03

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