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System and method for realizing broad and narrow band resource dynamic allocation based on narrow band air interface

A dynamic allocation, broadband and narrowband technology, applied in the direction of broadcast service distribution, electrical components, wireless communication, etc., can solve the problems of low utilization rate of broadband resources, slow response of call establishment, etc.

Active Publication Date: 2014-02-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems of slow response of call establishment and low utilization rate of broadband resources when PDT air interface short messages are used to carry control information in the existing business implementation method of broadband and narrowband access integration, and provides a narrowband-based System and method for realizing dynamic allocation of broadband and narrowband resources by air interface

Method used

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  • System and method for realizing broad and narrow band resource dynamic allocation based on narrow band air interface
  • System and method for realizing broad and narrow band resource dynamic allocation based on narrow band air interface
  • System and method for realizing broad and narrow band resource dynamic allocation based on narrow band air interface

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specific Embodiment approach 1

[0084] Specific implementation mode one: the following combination figure 1 This embodiment is described. The system for realizing dynamic allocation of broadband and narrowband resources based on the narrowband air interface described in this embodiment includes a converged base station 1 and a terminal 2, and information exchange between the converged base station 1 and the terminal 2 is carried out in a wireless manner;

[0085] The converged base station 1 includes a cluster base station controller 1-1, a plurality of PDT base station channel units 1-2 and a broadband service unit 1-3,

[0086] The cluster base station controller 1-1 controls multiple PDT base station channel units 1-2 and broadband service units 1-3, and the cluster base station controller 1-1 is formed by adding a broadband service control unit to the original PDT base station controller The controller is used to realize the management of broadband and narrowband resources, and the broadband service cont...

specific Embodiment approach 2

[0089]Specific implementation mode two: this implementation mode further explains implementation mode one, and the setting of cluster base station controller 1-1 described in this implementation mode is as follows:

[0090] Based on the PDT air interface standard signaling, the two SK reserved values ​​in the extended call establishment request signaling C_RAND are the visual single call service type IND_VD_SRV=1011 and the visual group call service type GRP_VD_SRV=1100;

[0091] Add signaling VD_AP, the signaling VD_AP follows the allocation channel signaling TV_GRANT and allocation channel signaling PV_GRANT, and the signaling VD_AP carries the parameters needed to establish a visual service or use broadband service units 1-3 to transmit voice parameters; use PDT Voice services implemented by base station channel unit 1-2 do not use VD_AP signaling;

[0092] When not using the PDT base station channel unit 1-2 to transmit voice, identify the speech right or visual speech rig...

specific Embodiment approach 3

[0095] Specific implementation mode three: this implementation mode further explains implementation mode two, and the structure of the VD_AP signaling described in this implementation mode is shown in the following table:

[0096]

[0097] .

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Abstract

The invention discloses a system and method for realizing broad and narrow band resource dynamic allocation based on a narrow band air interface, and belongs to the technical field of trunking communication. The invention aims to solve the problems that in the exiting implementation method of broad and narrow access fusing service, when a PDT air interface short message carries control information, the response speed of call establishment is low, and the utilization ratio of broad band resources is low. The system comprises a fused base station and a terminal, wherein the fused base station and the terminal perform information interaction in a wireless mode; the fused base station comprises a trunked base station controller, a plurality of PDT base station channel units and a broad band service unit. The method comprises the stages of call establishment, call process control and clearing control; the broad band service unit is added to the original PDT base station; the signaling interaction of broad and narrow services is performed through PDT air interface signaling extension; then broad and narrow resource dynamic allocation is realized. The system is applied to broad and narrow resource dynamic allocation.

Description

technical field [0001] The invention relates to a system and a method for realizing dynamic allocation of broadband and narrowband resources based on a narrowband air interface, and belongs to the technical field of trunking communication. Background technique [0002] The existing trunking communication system standards are all narrowband trunking communication systems, such as the land trunking radio system TETRA standard, the digital mobile wireless DMR standard and the police digital trunking PDT standard, etc., which cannot meet the needs of multimedia trunking services. Therefore, on the basis of the existing narrowband trunking communication system, it is an important means to realize broadband multimedia trunking services by adding broadband service units to integrate broadband and narrowband access. [0003] Supporting broadband multimedia trunking services is the development trend of trunking systems. However, the trunking system must first meet the demands of a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/10H04W76/00
Inventor 魏守明何晨光郭士增
Owner HARBIN INST OF TECH
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