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Group voice service scheduling method and device under small bandwidth

A voice service and group technology, applied in the field of communication, can solve problems such as increasing the demand for control channel resources, and achieve the effect of rational utilization and flexible scheduling

Active Publication Date: 2020-02-04
CHENGDU TD TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently, the industry adopts a dynamic scheduling method for group voice scheduling in the small bandwidth of the LTE system. However, when there are many small data packet services in the LTE private network system, the demand for control channel resources will be greatly increased. Reducing the occupation of control channel resources in the system is an urgent problem to be solved

Method used

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  • Group voice service scheduling method and device under small bandwidth
  • Group voice service scheduling method and device under small bandwidth
  • Group voice service scheduling method and device under small bandwidth

Examples

Experimental program
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Embodiment 1

[0022] In this embodiment, the scheduling mode for group voice service configuration is dynamic scheduling.

[0023] In this embodiment, it is necessary to count the CCE resource utilization rate for each scheduling period;

[0024] When the CCE resource utilization rate is less than a first preset value, it is determined that the control channel of the cell is in a light load state;

[0025] When the CCE resource utilization rate is not less than a first preset value and is less than a second preset value, determine that the control channel of the cell is in a medium load state;

[0026] When the CCE resource utilization rate is not less than a second preset value and is less than a third preset value, determine that the control channel of the cell is in a high load state;

[0027] When the CCE resource utilization rate is not less than the third preset value, it is determined that the control channel of the cell is in an overload state.

[0028] For any data packet of the ...

Embodiment 2

[0043] The scheduling methods for group voice services are configured as semi-static scheduling and dynamic scheduling.

[0044] In dynamic scheduling, real-time and dynamic allocation of time-frequency resources and allowed transmission rates. Dynamic scheduling is the most basic and flexible scheduling method. Resource allocation adopts an on-demand allocation method, and each scheduling requires the interaction of scheduling signaling, so the overhead of control signaling is very large. Therefore, dynamic scheduling is suitable for services with obvious burst characteristics.

[0045] Semi-persistent scheduling is a combination of dynamic scheduling and continuous scheduling. The so-called continuous scheduling mode refers to allocating resources to users according to a certain period. It is characterized in that scheduling is only performed when resources are allocated for the first time, and subsequent resource allocation does not require scheduling signaling instructio...

Embodiment 3

[0054] The scheduling method for group voice services is configured as semi-static scheduling.

[0055] Semi-static scheduling is performed for all group voice services.

[0056] The specific semi-persistent scheduling process can be implemented according to the scheduling method in the existing implementation.

[0057] In this implementation manner, in a small bandwidth system, only group voice is allowed to perform semi-static scheduling, which reduces the occupation of control channel resources by dynamic scheduling.

[0058] Based on the same inventive concept, the present application also proposes a group voice service scheduling device with a small bandwidth. see image 3 , image 3 It is a schematic structural diagram of a device applied to the above technology in the embodiment of the present application. The device includes: a first determining unit 301, a second determining unit 302, and a scheduling unit 303;

[0059] The first determining unit 301 is configure...

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Abstract

The invention provides a group voice service scheduling method and device under a small bandwidth. The method comprises the following steps: when a scheduling mode is configured to be dynamic scheduling for a group voice service, if it is determined that a control channel of a cell is currently in a medium load state and the number of to-be-scheduled group voice service data packets of a current TTI is less than N, waiting for a scheduling period and then scheduling the group voice service data packets; if it is determined that the control channel of the cell is in a high-load state and the number of to-be-scheduled group voice service data packets in the current TTI is less than M, determining whether to schedule the group voice service data packets in the next scheduling period; and if it is determined that the control channel of the cell is in the ultra-high load state, not scheduling the group voice service data packet in the current scheduling period, and setting the scheduling period to be 4T for the group voice service data packet. According to the method, the channel resources of the control channel can be reasonably utilized.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a group voice service scheduling method and device in a small bandwidth. Background technique [0002] With the continuous development of wireless communication technology, trunking communication technology develops from analog system to narrowband digital trunking system. At the same time, as industry users gradually increase their demand for wireless broadband, industry users have higher and higher requirements for the quality of voice services. In order to meet the needs of industry users, the traditional trunking system will withdraw from the market and will be replaced by TD-SCDMA Long Term Evolution (TD-SCDMA Long Term Evolution) , TD-LTE) as the representative digital trunking communication system. [0003] Currently, the industry adopts a dynamic scheduling method for group voice scheduling in the small bandwidth of the LTE system. However, when there are many sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W72/12
CPCH04W4/06H04W72/542H04W72/52
Inventor 王梦茹黄伟
Owner CHENGDU TD TECH LTD