Method and apparatus for dynamically adjusting bandwidth of advanced data link control channel

A technology of data link control and dynamic adjustment, which is applied in the field of communication and can solve problems such as time slot or sub-slot resource waste

Inactive Publication Date: 2007-09-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there are more communication devices connected to each other through transmission time slot switching equipment, more dedicated control links need to be set up on the E1 line, and the waste of time slot or sub-slot resources will be more serious

Method used

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Examples

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Embodiment Construction

[0029] In the embodiment provided by the present invention, during the dynamic adjustment process of the HDLC channel bandwidth, both ends of peer-to-peer communication include an HDLC configuration management unit and an HDLC processing unit, and either end can be used as the initiator of HDLC channel bandwidth adjustment or the HDLC channel bandwidth The adjusted responder, in this way, the initiator side includes at least an HDLC configuration management unit and an HDLC processing unit, and correspondingly, the responder side also includes at least an HDLC configuration management unit and an HDLC processing unit. The HDLC processing unit on the initiator side receives the HDLC frame according to the modified time slot channel mapping configuration information in the receiving direction, and sends a channel adjustment notification; the HDLC configuration management unit on the responder side sends and receives bidirectional time slots for the local end according to the obtai...

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PUM

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Abstract

The present invention discloses a method and device for bandwidth dynamic regulation for HDLC channel. A HDLC treating unit in the initiating side receives a HDLC frame according to the mapping arrangement information of the time interval channel in the receiving direction, and sends a regulation notice of the channel; a HDLC collocating management unit in the response side makes over the mapping arrangement information of the time interval channel in the receiving/sending direction of this terminal according to the obtained regulation notice of the channel, a HDLC treating unit in the response side receives and sends the HDLC frame with basis of the mapping arrangement information of the time interval channel in the receiving/sending direction, and sends a regulation response of the channel; a HDLC collocating management unit in the initiating side makes over the mapping arrangement information of the time interval channel in the receiving direction of this terminal according to the obtained regulation response of the channel, a HDLC treating unit in the initiating side sends the HDLC frame with basis of the mapping arrangement information of the time interval channel in the sending direction. The negotiation about HDLC channel bandwidth regulation between the two sides is accomplished by controlling frame alternation.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a device for dynamically adjusting the bandwidth of an advanced data link control channel. Background technique [0002] The High level Data Link Control (HDLC) protocol is applied to the data link layer of the Open Systems Interconnection (OSI) seven-layer network reference model, and its data frame structure and processing procedures are stipulated by international standards . [0003] When carried on an E1 / T1 line, each HDLC channel can be carried in one or more fixed continuous time slots or sub-slots on the E1 / T1 line. In practical applications, multiple HDLC channels are often configured in one E1 / T1 line, and different HDLC channels occupy different time slots or sub-time slots. The HDLC channels do not interfere with each other, and different HDLC channels can carry Data flows of the same or different application types. [0004] Figure 1 is a schematic diagram of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04L12/56H04L12/24H04L12/54
CPCH04L41/0896H04L29/08027H04L47/10H04L12/5695H04L47/762H04L69/324H04L47/70
Inventor 陈宇
Owner HUAWEI TECH CO LTD
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