Method and device for adaptively adjusting discontinuous reception modes in wireless communication system

A discontinuous reception, adaptive adjustment technology, applied in wireless communication, sustainable buildings, climate sustainability, etc., can solve the problem of low power saving efficiency, achieve efficient power saving, reduce power loss, and reduce time Effect

Inactive Publication Date: 2010-12-22
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a need for a method to solve the problem of low power saving efficiency of the traditional DRX parameter setting method, so that it can more effectively save the user's power and prolong the user's standby time while ensuring the system throughput requirements

Method used

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  • Method and device for adaptively adjusting discontinuous reception modes in wireless communication system
  • Method and device for adaptively adjusting discontinuous reception modes in wireless communication system
  • Method and device for adaptively adjusting discontinuous reception modes in wireless communication system

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no. 1 approach

[0040] According to the relationship between the system throughput and the system load described above, it can be seen that as the number of users in the active period at a certain moment increases, the amount of increase in the system throughput is not obvious. In this case, if the number of users in the active period is additionally increased, the contribution to the system throughput is very small. Based on this, when the system load is relatively small, it is hoped that there are enough users in the activation period to ensure the throughput of the system, but after the number of users in the activation period increases to a certain extent, due to the increase in the number of users, it cannot be significantly increased. The throughput of the system, so it is hoped to limit the number of users in the active period, and effectively save the user's power.

[0041] To this end, the ratio between the on-duration of the user and the DRX cycle may be adjusted according to the lo...

Embodiment approach

[0062] According to the second embodiment of the present invention, the discontinuous reception time length can be adjusted according to the speed of channel change in the wireless communication system. Specifically, for a user whose channel changes quickly, increase the discontinuous reception time length of the user, and for a user whose channel changes slowly, decrease the user's discontinuous reception time length.

[0063] Figure 8 A flow chart showing the second embodiment of the present invention for the eNB to adaptively adjust the time length of the inactivity timer according to the speed of user channel change. Refer below Figure 8 A second implementation manner of adaptively setting DRX parameters is described.

[0064] According to the second embodiment of the present invention, the eNB judges the speed of the channel change according to the moving speed of the user. use T i Indicates the length of the inactive timer, and Ti_slow, Ti_fast, and Ti_original are...

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Abstract

The invention discloses a method for adaptively adjusting discontinuous reception parameters of users according to conditions of a wireless channel. The method of the invention comprises the following steps: detecting the load variation of a wireless communication system; and changing the time when a user is in the activation stage in the discontinuous reception cycle according to the detected load variation. In addition, the invention can also be used for detecting the change speed of a user channel and changing the time when the user is in the activation stage in the discontinuous reception cycle according to the detected change speed of the channel.

Description

technical field [0001] The invention relates to a method and device for adaptively adjusting a user's discontinuous reception mode in a wireless communication system, in particular, to adaptively setting the user's discontinuous reception parameter according to the condition of the wireless channel, thereby further improving the discontinuous reception mode. Method and apparatus for power saving efficiency of modes. Background technique [0002] As an important organization in the mobile communication field, the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) has greatly promoted the standardization progress of the 3rd generation mobile communication technology (The Third Generation, 3G). 3GPP has formulated a series including Wide Code Division Multiple Access (WCDMA), High Speed ​​Downlink Packet Access (HSDPA), High Speed ​​Uplink Packet Access, HSUPA) and other communication system specifications. In order to meet the challenges of broadba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02
CPCY02B60/50Y02D30/70
Inventor 刘柳佘小明陈岚
Owner NTT DOCOMO INC
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