DRX device based on LTE system and control method thereof

A technology of control module and multiplier, which is applied in the field of mobile communication and can solve problems such as dynamic adjustment

Inactive Publication Date: 2010-10-13
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to meet these conflicting requirements, two DRX periods in the LTE system can be configured for each UE, but only two sleep cycles of long DRX and short DRX are used, and there is no quality of service (QoS) ( Quality of Service,) requires dynamic adjustment of the DRX cycle, and does not take advantage of the correlation of the data arrival process in a short period of time, such as the literature (Chandra S.Bontu, Ed Illidge.DRX Mechanism for Power Saving in LTE[J].IEEE Communications Magazine, 2009, 47(6):48-55.) belongs to this column

Method used

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  • DRX device based on LTE system and control method thereof
  • DRX device based on LTE system and control method thereof
  • DRX device based on LTE system and control method thereof

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Embodiment 1

[0085] Embodiment 1: (device embodiment)

[0086] Embodiment 1 of the DRX device of the present invention is as follows Figure 1-3 As shown, it includes a business data buffer, a control module, an initial sleep interval algorithm module and a sleep interval algorithm module, and is characterized in that the control module is connected to the business data buffer, the initial sleep interval algorithm module and the sleep interval algorithm module respectively; wherein the business data The buffer includes a service data input terminal, a service data output terminal, a buffer read empty command terminal, a service type indication command terminal, and a buffer read and write command terminal. The service data input and output terminals are connected to the service data line, and the remaining ports are connected to the control module. ; The initial sleep interval algorithm module includes two multipliers, a comparator and a selector; the maximum interval reached by the previo...

Embodiment 2

[0087] Embodiment 2: (method embodiment)

[0088] A method for performing DRX cycle control using the above-mentioned device, such as Figure 4 As shown, the steps are as follows:

[0089] Step1: The UE in the working state continues to read the service data buffer, starts the inactive timer, and then the UE receives the buffer read empty command. After a period of time, the inactive timer expires, and the control module enters the sleep mode after initializing the system. A sleep cycle includes a sleep interval and a listen interval;

[0090] Step2: The control module sends the sleep cycle growth factor a, the state number w of the sleep interval under this value a, the maximum interval reached in the last sleep process, the minimum sleep interval, and the maximum sleep interval to the initial sleep interval algorithm module; the state of the sleep interval The number w is calculated using the following formula:

[0091] w = floor ...

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Abstract

The invention discloses a DRX device based on an LTE system and a control method thereof, which belong to the field of mobile communication. The device comprises a service data buffer, a control module, an initial sleep interval calculation module and a sleep interval calculation module, wherein the control module is respectively connected with the service data buffer, the initial sleep interval calculation module and the sleep interval calculation module. The device and the control method thereof realize the variable exponential growth of a sleep period and determine the next initial sleep interval according to the state order of the former sleep mode. A mathematical simulation model is established according to an algorithm, the performance of which is analyzed in the aspects of energy consumption and time delay, and the result of the simulation shows that the improved device and the control method thereof have better performance. The device and the control method thereof has simple structure, low construction cost and stabile and reliable running.

Description

technical field [0001] The invention relates to a DRX device based on an LTE system and a control method thereof, belonging to the technical field of mobile communication. Background technique [0002] 3GPP is the abbreviation of 3rd Generation Partnership Project in English, which means the third generation partnership project in Chinese. Orthogonal Frequency Division Multiplexing (OFDM, the abbreviation of English Orthogonal Frequency Division Multiplexing,) as the core technology can be regarded as "quasi 4G" technology. The LTE system can significantly increase user throughput and sector capacity, and reduce user-perceivable delay, thereby greatly improving the user's mobile communication experience. [0003] With the continuous progress of the society, the idea of ​​green environmental protection, energy saving and emission reduction has been deeply rooted in the hearts of the people. While the mobile communication system provides higher spectrum utilization, higher sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02
CPCY02D30/70
Inventor 张春业宁祥峰李仁波李婧卿万伟
Owner SHANDONG UNIV
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